loncom/interface/loncommon.pm - diff

Return to loncommon.pm CVS log

Up to [LON-CAPA] / loncom / interface

Diff for /loncom/interface/loncommon.pm between versions 1.152 and 1.1135

-version 1.152, 2003/11/10 23:25:52
+version 1.1135, 2013/07/03 05:03:12
  Line 25
  #
  # http://www.lon-capa.org/
  #
- # YEAR=2001
- # 2/13-12/7 Guy Albertelli
- # 12/21 Gerd Kortemeyer
- # 12/25,12/28 Gerd Kortemeyer
- # YEAR=2002
- # 1/4 Gerd Kortemeyer
- # 6/24,7/2 H. K. Ng
  # Makes a table out of the previous attempts
  # Inputs result_from_symbread, user, domain, course_id
- Line 62  redundancy from other modules and increa
+ Line 55  redundancy from other modules and increa
  package Apache::loncommon;
  use strict;
- use Apache::lonnet();
+ use Apache::lonnet;
  use GDBM_File;
  use POSIX qw(strftime mktime);
- use Apache::Constants qw(:common :http :methods);
- use Apache::lonmsg();
  use Apache::lonmenu();
+ use Apache::lonenc();
  use Apache::lonlocal;
+ use Apache::lonnet();
  use HTML::Entities;
+ use Apache::lonhtmlcommon();
+ use Apache::loncoursedata();
+ use Apache::lontexconvert();
+ use Apache::lonclonecourse();
+ use Apache::lonuserutils();
+ use Apache::lonuserstate();
+ use LONCAPA qw(:DEFAULT :match);
+ use DateTime::TimeZone;
+ use DateTime::Locale::Catalog;
+ use Text::Aspell;
+ use Authen::Captcha;
+ use Captcha::reCAPTCHA;
+ # ---------------------------------------------- Designs
+ use vars qw(%defaultdesign);
  my $readit;
- =pod
- =head1 Global Variables
+ ##
+ ## Global Variables
+ ##
+ # ----------------------------------------------- SSI with retries:
+ #
+ =pod
+ =head1 Server Side include with retries:
+ =over 4
+ =item * &ssi_with_retries(resource,retries form)
+ Performs an ssi with some number of retries.  Retries continue either
+ until the result is ok or until the retry count supplied by the
+ caller is exhausted.
+ Inputs:
+ =over 4
+ resource   - Identifies the resource to insert.
+ retries    - Count of the number of retries allowed.
+ form       - Hash that identifies the rendering options.
+ =back
+ Returns:
+ =over 4
+ content    - The content of the response.  If retries were exhausted this is empty.
+ response   - The response from the last attempt (which may or may not have been successful.
+ =back
+ =back
  =cut
+ sub ssi_with_retries {
+     my ($resource, $retries, %form) = @_;
+     my $ok = 0;			# True if we got a good response.
+     my $content;
+     my $response;
+     # Try to get the ssi done. within the retries count:
+     do {
+ 	($content, $response) = &Apache::lonnet::ssi($resource, %form);
+ 	$ok      = $response->is_success;
+         if (!$ok) {
+             &Apache::lonnet::logthis("Failed ssi_with_retries on $resource: ".$response->is_success.', '.$response->code.', '.$response->message);
+         }
+ 	$retries--;
+     } while (!$ok && ($retries > 0));
+     if (!$ok) {
+ 	$content = '';		# On error return an empty content.
+     }
+     return ($content, $response);
+ }
  # ----------------------------------------------- Filetypes/Languages/Copyright
  my %language;
  my %supported_language;
+ my %supported_codes;
+ my %latex_language;		# For choosing hyphenation in <transl..>
+ my %latex_language_bykey;	# for choosing hyphenation from metadata
  my %cprtag;
- my %fe; my %fd;
+ my %scprtag;
+ my %fe; my %fd; my %fm;
  my %category_extensions;
- # ---------------------------------------------- Designs
- my %designhash;
  # ---------------------------------------------- Thesaurus variables
  #
  # %Keywords:
- Line 111  BEGIN {
+ Line 188  BEGIN {
      unless ($readit) {
  # ------------------------------------------------------------------- languages
      {
- 	my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
+         my $langtabfile = $Apache::lonnet::perlvar{'lonTabDir'}.
- 				 '/language.tab');
+                                    '/language.tab';
- 	if ($fh) {
+         if ( open(my $fh,"<$langtabfile") ) {
- 	    while (<$fh>) {
+             while (my $line = <$fh>) {
- 		next if /^\#/;
+                 next if ($line=~/^\#/);
- 		chomp;
+                 chomp($line);
- 		my ($key,$two,$country,$three,$enc,$val,$sup)=(split(/\t/,$_));
+                 my ($key,$code,$country,$three,$enc,$val,$sup,$latex)=(split(/\t/,$line));
- 		$language{$key}=$val.' - '.$enc;
+                 $language{$key}=$val.' - '.$enc;
- 		if ($sup) {
+                 if ($sup) {
- 		    $supported_language{$key}=$sup;
+                     $supported_language{$key}=$sup;
+ 		    $supported_codes{$key}   = $code;
+                 }
+ 		if ($latex) {
+ 		    $latex_language_bykey{$key} = $latex;
+ 		    $latex_language{$code} = $latex;
  		}
- 	    }
+             }
- 	}
+             close($fh);
+         }
      }
  # ------------------------------------------------------------------ copyrights
      {
- 	my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonIncludes'}.
+         my $copyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
- 				  '/copyright.tab');
+                                   '/copyright.tab';
- 	if ($fh) {
+         if ( open (my $fh,"<$copyrightfile") ) {
- 	    while (<$fh>) {
+             while (my $line = <$fh>) {
- 		next if /^\#/;
+                 next if ($line=~/^\#/);
- 		chomp;
+                 chomp($line);
- 		my ($key,$val)=(split(/\s+/,$_,2));
+                 my ($key,$val)=(split(/\s+/,$line,2));
- 		$cprtag{$key}=$val;
+                 $cprtag{$key}=$val;
- 	    }
+             }
- 	}
+             close($fh);
+         }
      }
+ # ----------------------------------------------------------- source copyrights
- # -------------------------------------------------------------- domain designs
-     my $filename;
-     my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
-     opendir(DIR,$designdir);
-     while ($filename=readdir(DIR)) {
- 	my ($domain)=($filename=~/^(\w+)\./);
      {
- 	my $fh=Apache::File->new($designdir.'/'.$filename);
+         my $sourcecopyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
- 	if ($fh) {
+                                   '/source_copyright.tab';
- 	    while (<$fh>) {
+         if ( open (my $fh,"<$sourcecopyrightfile") ) {
- 		next if /^\#/;
+             while (my $line = <$fh>) {
- 		chomp;
+                 next if ($line =~ /^\#/);
- 		my ($key,$val)=(split(/\=/,$_));
+                 chomp($line);
- 		if ($val) { $designhash{$domain.'.'.$key}=$val; }
+                 my ($key,$val)=(split(/\s+/,$line,2));
- 	    }
+                 $scprtag{$key}=$val;
- 	}
+             }
+             close($fh);
+         }
      }
+ # -------------------------------------------------------------- default domain designs
+     my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
+     my $designfile = $designdir.'/default.tab';
+     if ( open (my $fh,"<$designfile") ) {
+         while (my $line = <$fh>) {
+             next if ($line =~ /^\#/);
+             chomp($line);
+             my ($key,$val)=(split(/\=/,$line));
+             if ($val) { $defaultdesign{$key}=$val; }
+         }
+         close($fh);
      }
-     closedir(DIR);
  # ------------------------------------------------------------- file categories
      {
- 	my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
+         my $categoryfile = $Apache::lonnet::perlvar{'lonTabDir'}.
- 				  '/filecategories.tab');
+                                   '/filecategories.tab';
- 	if ($fh) {
+         if ( open (my $fh,"<$categoryfile") ) {
- 	    while (<$fh>) {
+ 	    while (my $line = <$fh>) {
- 		next if /^\#/;
+ 		next if ($line =~ /^\#/);
- 		chomp;
+ 		chomp($line);
- 		my ($extension,$category)=(split(/\s+/,$_,2));
+                 my ($extension,$category)=(split(/\s+/,$line,2));
- 		push @{$category_extensions{lc($category)}},$extension;
+                 push @{$category_extensions{lc($category)}},$extension;
- 	    }
+             }
- 	}
+             close($fh);
+         }
      }
  # ------------------------------------------------------------------ file types
      {
- 	my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
+         my $typesfile = $Apache::lonnet::perlvar{'lonTabDir'}.
- 	       '/filetypes.tab');
+                '/filetypes.tab';
- 	if ($fh) {
+         if ( open (my $fh,"<$typesfile") ) {
-             while (<$fh>) {
+             while (my $line = <$fh>) {
- 		next if (/^\#/);
+ 		next if ($line =~ /^\#/);
- 		chomp;
+ 		chomp($line);
- 		my ($ending,$emb,$descr)=split(/\s+/,$_,3);
+                 my ($ending,$emb,$mime,$descr)=split(/\s+/,$line,4);
- 		if ($descr ne '') {
+                 if ($descr ne '') {
- 		    $fe{$ending}=lc($emb);
+                     $fe{$ending}=lc($emb);
- 		    $fd{$ending}=$descr;
+                     $fd{$ending}=$descr;
- 		}
+                     if ($mime ne 'unk') { $fm{$ending}=$mime; }
- 	    }
+                 }
- 	}
+             }
+             close($fh);
+         }
      }
      &Apache::lonnet::logthis(
-               "<font color=yellow>INFO: Read file types</font>");
+              "<span style='color:yellow;'>INFO: Read file types</span>");
      $readit=1;
      }  # end of unless($readit)
- Line 204  BEGIN {
+ Line 296  BEGIN {
  =pod
- =head1 General Subroutines
- =over 4
  =head1 HTML and Javascript Functions
  =over 4
- =item * browser_and_searcher_javascript ()
+ =item * &browser_and_searcher_javascript()
  X<browsing, javascript>X<searching, javascript>Returns a string
  containing javascript with two functions, C<openbrowser> and
  C<opensearcher>. Returned string does not contain E<lt>scriptE<gt>
  tags.
- =over 4
+ =item * &openbrowser(formname,elementname,only,omit) [javascript]
- =item * openbrowser(formname,elementname,only,omit) [javascript]
  inputs: formname, elementname, only, omit
- Line 229  formname and elementname indicate the na
+ Line 315  formname and elementname indicate the na
  the element that the results of the browsing selection are to be placed in.
  Specifying 'only' will restrict the browser to displaying only files
- with the given extension.  Can be a comma seperated list.
+ with the given extension.  Can be a comma separated list.
  Specifying 'omit' will restrict the browser to NOT displaying files
- with the given extension.  Can be a comma seperated list.
+ with the given extension.  Can be a comma separated list.
- =item * opensearcher(formname, elementname) [javascript]
+ =item * &opensearcher(formname,elementname) [javascript]
  Inputs: formname, elementname
  formname and elementname specify the name of the html form and the name
  of the element the selection from the search results will be placed in.
- =back
  =cut
  sub browser_and_searcher_javascript {
+     my ($mode)=@_;
+     if (!defined($mode)) { $mode='edit'; }
+     my $resurl=&escape_single(&lastresurl());
      return <<END;
+ // <!-- BEGIN LON-CAPA Internal
      var editbrowser = null;
      function openbrowser(formname,elementname,only,omit,titleelement) {
-         var url = '/res/?';
+         var url = '$resurl/?';
          if (editbrowser == null) {
              url += 'launch=1&';
          }
          url += 'catalogmode=interactive&';
-         url += 'mode=edit&';
+         url += 'mode=$mode&';
+         url += 'inhibitmenu=yes&';
          url += 'form=' + formname + '&';
          if (only != null) {
              url += 'only=' + only + '&';
-         }
+         } else {
+             url += 'only=&';
+ 	}
          if (omit != null) {
              url += 'omit=' + omit + '&';
-         }
+         } else {
+             url += 'omit=&';
+ 	}
          if (titleelement != null) {
              url += 'titleelement=' + titleelement + '&';
-         }
+         } else {
+ 	    url += 'titleelement=&';
+ 	}
          url += 'element=' + elementname + '';
          var title = 'Browser';
-         var options = 'scrollbars=1,resizable=1,menubar=0';
+         var options = 'scrollbars=1,resizable=1,menubar=0,toolbar=1,location=1';
          options += ',width=700,height=600';
          editbrowser = open(url,title,options,'1');
          editbrowser.focus();
- Line 279  sub browser_and_searcher_javascript {
+ Line 374  sub browser_and_searcher_javascript {
              url += 'launch=1&';
          }
          url += 'catalogmode=interactive&';
-         url += 'mode=edit&';
+         url += 'mode=$mode&';
          url += 'form=' + formname + '&';
          if (titleelement != null) {
              url += 'titleelement=' + titleelement + '&';
-         }
+         } else {
+ 	    url += 'titleelement=&';
+ 	}
          url += 'element=' + elementname + '';
          var title = 'Search';
-         var options = 'scrollbars=1,resizable=1,menubar=0';
+         var options = 'scrollbars=1,resizable=1,menubar=0,toolbar=1,location=1';
          options += ',width=700,height=600';
          editsearcher = open(url,title,options,'1');
          editsearcher.focus();
      }
+ // END LON-CAPA Internal -->
  END
  }
+ sub lastresurl {
+     if ($env{'environment.lastresurl'}) {
+ 	return $env{'environment.lastresurl'}
+     } else {
+ 	return '/res';
+     }
+ }
+ sub storeresurl {
+     my $resurl=&Apache::lonnet::clutter(shift);
+     unless ($resurl=~/^\/res/) { return 0; }
+     $resurl=~s/\/$//;
+     &Apache::lonnet::put('environment',{'lastresurl' => $resurl});
+     &Apache::lonnet::appenv({'environment.lastresurl' => $resurl});
+     return 1;
+ }
  sub studentbrowser_javascript {
     unless (
-             (($ENV{'request.course.id'}) &&
+             (($env{'request.course.id'}) &&
-              (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})))
+              (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
-          || ($ENV{'request.role'}=~/^(au|dc|su)/)
+ 	      || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
+ 					  '/'.$env{'request.course.sec'})
+ 	      ))
+          || ($env{'request.role'}=~/^(au|dc|su)/)
            ) { return ''; }
     return (<<'ENDSTDBRW');
- <script type="text/javascript" language="Javascript" >
+ <script type="text/javascript" language="Javascript">
+ // <![CDATA[
      var stdeditbrowser;
-     function openstdbrowser(formname,uname,udom,roleflag) {
+     function openstdbrowser(formname,uname,udom,clicker,roleflag,ignorefilter,courseadvonly) {
          var url = '/adm/pickstudent?';
          var filter;
-         eval('filter=document.'+formname+'.'+uname+'.value;');
+ 	if (!ignorefilter) {
+ 	    eval('filter=document.'+formname+'.'+uname+'.value;');
+ 	}
          if (filter != null) {
             if (filter != '') {
                 url += 'filter='+filter+'&';
  	   }
          }
          url += 'form=' + formname + '&unameelement='+uname+
-                                     '&udomelement='+udom;
+                                     '&udomelement='+udom+
+                                     '&clicker='+clicker;
  	if (roleflag) { url+="&roles=1"; }
+         if (courseadvonly) { url+="&courseadvonly=1"; }
          var title = 'Student_Browser';
          var options = 'scrollbars=1,resizable=1,menubar=0';
          options += ',width=700,height=600';
          stdeditbrowser = open(url,title,options,'1');
          stdeditbrowser.focus();
      }
+ // ]]>
  </script>
  ENDSTDBRW
  }
+ sub resourcebrowser_javascript {
+    unless ($env{'request.course.id'}) { return ''; }
+    return (<<'ENDRESBRW');
+ <script type="text/javascript" language="Javascript">
+ // <![CDATA[
+     var reseditbrowser;
+     function openresbrowser(formname,reslink) {
+         var url = '/adm/pickresource?form='+formname+'&reslink='+reslink;
+         var title = 'Resource_Browser';
+         var options = 'scrollbars=1,resizable=1,menubar=0';
+         options += ',width=700,height=500';
+         reseditbrowser = open(url,title,options,'1');
+         reseditbrowser.focus();
+     }
+ // ]]>
+ </script>
+ ENDRESBRW
+ }
  sub selectstudent_link {
-    my ($form,$unameele,$udomele)=@_;
+    my ($form,$unameele,$udomele,$courseadvonly,$clickerid)=@_;
-    if ($ENV{'request.course.id'}) {
+    my $callargs = "'".&Apache::lonhtmlcommon::entity_encode($form)."','".
-        unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
+                       &Apache::lonhtmlcommon::entity_encode($unameele)."','".
+                       &Apache::lonhtmlcommon::entity_encode($udomele)."'";
+    if ($env{'request.course.id'}) {
+        if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
+ 	   && !&Apache::lonnet::allowed('srm',$env{'request.course.id'}.
+ 					'/'.$env{'request.course.sec'})) {
  	   return '';
         }
-        return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
+        $callargs.=",'".&Apache::lonhtmlcommon::entity_encode($clickerid)."'";
-         '","'.$udomele.'");'."'>".&mt('Select User')."</a>";
+        if ($courseadvonly)  {
+            $callargs .= ",'',1,1";
+        }
+        return '<span class="LC_nobreak">'.
+               '<a href="javascript:openstdbrowser('.$callargs.');">'.
+               &mt('Select User').'</a></span>';
     }
-    if ($ENV{'request.role'}=~/^(au|dc|su)/) {
+    if ($env{'request.role'}=~/^(au|dc|su)/) {
-        return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
+        $callargs .= ",'',1";
-         '","'.$udomele.'",1);'."'>".&mt('Select User')."</a>";
+        return '<span class="LC_nobreak">'.
+               '<a href="javascript:openstdbrowser('.$callargs.');">'.
+               &mt('Select User').'</a></span>';
     }
     return '';
  }
+ sub selectresource_link {
+    my ($form,$reslink,$arg)=@_;
+    my $callargs = "'".&Apache::lonhtmlcommon::entity_encode($form)."','".
+                       &Apache::lonhtmlcommon::entity_encode($reslink)."'";
+    unless ($env{'request.course.id'}) { return $arg; }
+    return '<span class="LC_nobreak">'.
+               '<a href="javascript:openresbrowser('.$callargs.');">'.
+               $arg.'</a></span>';
+ }
+ sub authorbrowser_javascript {
+     return <<"ENDAUTHORBRW";
+ <script type="text/javascript" language="JavaScript">
+ // <![CDATA[
+ var stdeditbrowser;
+ function openauthorbrowser(formname,udom) {
+     var url = '/adm/pickauthor?';
+     url += 'form='+formname+'&roledom='+udom;
+     var title = 'Author_Browser';
+     var options = 'scrollbars=1,resizable=1,menubar=0';
+     options += ',width=700,height=600';
+     stdeditbrowser = open(url,title,options,'1');
+     stdeditbrowser.focus();
+ }
+ // ]]>
+ </script>
+ ENDAUTHORBRW
+ }
  sub coursebrowser_javascript {
-     my ($domainfilter)=@_;
+     my ($domainfilter,$sec_element,$formname,$role_element,$crstype,
-    return (<<ENDSTDBRW);
+         $credits_element) = @_;
- <script type="text/javascript" language="Javascript" >
+     my $wintitle = 'Course_Browser';
-     var stdeditbrowser;
+     if ($crstype eq 'Community') {
-     function opencrsbrowser(formname,uname,udom) {
+         $wintitle = 'Community_Browser';
+     }
+     my $id_functions = &javascript_index_functions();
+     my $output = '
+ <script type="text/javascript" language="JavaScript">
+ // <![CDATA[
+     var stdeditbrowser;'."\n";
+     $output .= <<"ENDSTDBRW";
+     function opencrsbrowser(formname,uname,udom,desc,extra_element,multflag,type,type_elem) {
          var url = '/adm/pickcourse?';
-         var filter;
+         var formid = getFormIdByName(formname);
-         if (filter != null) {
+         var domainfilter = getDomainFromSelectbox(formname,udom);
-            if (filter != '') {
-                url += 'filter='+filter+'&';
- 	   }
-         }
-         var domainfilter='$domainfilter';
          if (domainfilter != null) {
             if (domainfilter != '') {
                 url += 'domainfilter='+domainfilter+'&';
  	   }
          }
          url += 'form=' + formname + '&cnumelement='+uname+
-                                     '&cdomelement='+udom;
+ 	                            '&cdomelement='+udom+
-         var title = 'Course_Browser';
+                                     '&cnameelement='+desc;
+         if (extra_element !=null && extra_element != '') {
+             if (formname == 'rolechoice' || formname == 'studentform') {
+                 url += '&roleelement='+extra_element;
+                 if (domainfilter == null || domainfilter == '') {
+                     url += '&domainfilter='+extra_element;
+                 }
+             }
+             else {
+                 if (formname == 'portform') {
+                     url += '&setroles='+extra_element;
+                 } else {
+                     if (formname == 'rules') {
+                         url += '&fixeddom='+extra_element;
+                     }
+                 }
+             }
+         }
+         if (type != null && type != '') {
+             url += '&type='+type;
+         }
+         if (type_elem != null && type_elem != '') {
+             url += '&typeelement='+type_elem;
+         }
+         if (formname == 'ccrs') {
+             var ownername = document.forms[formid].ccuname.value;
+             var ownerdom =  document.forms[formid].ccdomain.options[document.forms[formid].ccdomain.selectedIndex].value;
+             url += '&cloner='+ownername+':'+ownerdom;
+         }
+         if (multflag !=null && multflag != '') {
+             url += '&multiple='+multflag;
+         }
+         var title = '$wintitle';
          var options = 'scrollbars=1,resizable=1,menubar=0';
          options += ',width=700,height=600';
          stdeditbrowser = open(url,title,options,'1');
          stdeditbrowser.focus();
      }
- </script>
+ $id_functions
  ENDSTDBRW
+     if (($sec_element ne '') || ($role_element ne '') || ($credits_element ne '')) {
+         $output .= &setsec_javascript($sec_element,$formname,$role_element,
+                                       $credits_element);
+     }
+     $output .= '
+ // ]]>
+ </script>';
+     return $output;
+ }
+ sub javascript_index_functions {
+     return <<"ENDJS";
+ function getFormIdByName(formname) {
+     for (var i=0;i<document.forms.length;i++) {
+         if (document.forms[i].name == formname) {
+             return i;
+         }
+     }
+     return -1;
+ }
+ function getIndexByName(formid,item) {
+     for (var i=0;i<document.forms[formid].elements.length;i++) {
+         if (document.forms[formid].elements[i].name == item) {
+             return i;
+         }
+     }
+     return -1;
+ }
+ function getDomainFromSelectbox(formname,udom) {
+     var userdom;
+     var formid = getFormIdByName(formname);
+     if (formid > -1) {
+         var domid = getIndexByName(formid,udom);
+         if (domid > -1) {
+             if (document.forms[formid].elements[domid].type == 'select-one') {
+                 userdom=document.forms[formid].elements[domid].options[document.forms[formid].elements[domid].selectedIndex].value;
+             }
+             if (document.forms[formid].elements[domid].type == 'hidden') {
+                 userdom=document.forms[formid].elements[domid].value;
+             }
+         }
+     }
+     return userdom;
+ }
+ ENDJS
+ }
+ sub javascript_array_indexof {
+     return <<ENDJS;
+ <script type="text/javascript" language="JavaScript">
+ // <![CDATA[
+ if (!Array.prototype.indexOf) {
+     Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) {
+         "use strict";
+         if (this === void 0 || this === null) {
+             throw new TypeError();
+         }
+         var t = Object(this);
+         var len = t.length >>> 0;
+         if (len === 0) {
+             return -1;
+         }
+         var n = 0;
+         if (arguments.length > 0) {
+             n = Number(arguments[1]);
+             if (n !== n) { // shortcut for verifying if it is NaN
+                 n = 0;
+             } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) {
+                 n = (n > 0 || -1) * Math.floor(Math.abs(n));
+             }
+         }
+         if (n >= len) {
+             return -1;
+         }
+         var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);
+         for (; k < len; k++) {
+             if (k in t && t[k] === searchElement) {
+                 return k;
+             }
+         }
+         return -1;
+     }
+ }
+ // ]]>
+ </script>
+ ENDJS
+ }
+ sub userbrowser_javascript {
+     my $id_functions = &javascript_index_functions();
+     return <<"ENDUSERBRW";
+ function openuserbrowser(formname,uname,udom,ulast,ufirst,uemail,hideudom,crsdom,caller) {
+     var url = '/adm/pickuser?';
+     var userdom = getDomainFromSelectbox(formname,udom);
+     if (userdom != null) {
+        if (userdom != '') {
+            url += 'srchdom='+userdom+'&';
+        }
+     }
+     url += 'form=' + formname + '&unameelement='+uname+
+                                 '&udomelement='+udom+
+                                 '&ulastelement='+ulast+
+                                 '&ufirstelement='+ufirst+
+                                 '&uemailelement='+uemail+
+                                 '&hideudomelement='+hideudom+
+                                 '&coursedom='+crsdom;
+     if ((caller != null) && (caller != undefined)) {
+         url += '&caller='+caller;
+     }
+     var title = 'User_Browser';
+     var options = 'scrollbars=1,resizable=1,menubar=0';
+     options += ',width=700,height=600';
+     var stdeditbrowser = open(url,title,options,'1');
+     stdeditbrowser.focus();
+ }
+ function fix_domain (formname,udom,origdom,uname) {
+     var formid = getFormIdByName(formname);
+     if (formid > -1) {
+         var unameid = getIndexByName(formid,uname);
+         var domid = getIndexByName(formid,udom);
+         var hidedomid = getIndexByName(formid,origdom);
+         if (hidedomid > -1) {
+             var fixeddom = document.forms[formid].elements[hidedomid].value;
+             var unameval = document.forms[formid].elements[unameid].value;
+             if ((fixeddom != '') && (fixeddom != undefined) && (fixeddom != null) && (unameval != '') && (unameval != undefined) && (unameval != null)) {
+                 if (domid > -1) {
+                     var slct = document.forms[formid].elements[domid];
+                     if (slct.type == 'select-one') {
+                         var i;
+                         for (i=0;i<slct.length;i++) {
+                             if (slct.options[i].value==fixeddom) { slct.selectedIndex=i; }
+                         }
+                     }
+                     if (slct.type == 'hidden') {
+                         slct.value = fixeddom;
+                     }
+                 }
+             }
+         }
+     }
+     return;
+ }
+ $id_functions
+ ENDUSERBRW
+ }
+ sub setsec_javascript {
+     my ($sec_element,$formname,$role_element,$credits_element) = @_;
+     my (@courserolenames,@communityrolenames,$rolestr,$courserolestr,
+         $communityrolestr);
+     if ($role_element ne '') {
+         my @allroles = ('st','ta','ep','in','ad');
+         foreach my $crstype ('Course','Community') {
+             if ($crstype eq 'Community') {
+                 foreach my $role (@allroles) {
+                     push(@communityrolenames,&Apache::lonnet::plaintext($role,$crstype));
+                 }
+                 push(@communityrolenames,&Apache::lonnet::plaintext('co'));
+             } else {
+                 foreach my $role (@allroles) {
+                     push(@courserolenames,&Apache::lonnet::plaintext($role,$crstype));
+                 }
+                 push(@courserolenames,&Apache::lonnet::plaintext('cc'));
+             }
+         }
+         $rolestr = '"'.join('","',@allroles).'"';
+         $courserolestr = '"'.join('","',@courserolenames).'"';
+         $communityrolestr = '"'.join('","',@communityrolenames).'"';
+     }
+     my $setsections = qq|
+ function setSect(sectionlist) {
+     var sectionsArray = new Array();
+     if ((sectionlist != '') && (typeof sectionlist != "undefined")) {
+         sectionsArray = sectionlist.split(",");
+     }
+     var numSections = sectionsArray.length;
+     document.$formname.$sec_element.length = 0;
+     if (numSections == 0) {
+         document.$formname.$sec_element.multiple=false;
+         document.$formname.$sec_element.size=1;
+         document.$formname.$sec_element.options[0] = new Option('No existing sections','',false,false)
+     } else {
+         if (numSections == 1) {
+             document.$formname.$sec_element.multiple=false;
+             document.$formname.$sec_element.size=1;
+             document.$formname.$sec_element.options[0] = new Option('Select','',true,true);
+             document.$formname.$sec_element.options[1] = new Option('No section','',false,false)
+             document.$formname.$sec_element.options[2] = new Option(sectionsArray[0],sectionsArray[0],false,false);
+         } else {
+             for (var i=0; i<numSections; i++) {
+                 document.$formname.$sec_element.options[i] = new Option(sectionsArray[i],sectionsArray[i],false,false)
+             }
+             document.$formname.$sec_element.multiple=true
+             if (numSections < 3) {
+                 document.$formname.$sec_element.size=numSections;
+             } else {
+                 document.$formname.$sec_element.size=3;
+             }
+             document.$formname.$sec_element.options[0].selected = false
+         }
+     }
+ }
+ function setRole(crstype) {
+ |;
+     if ($role_element eq '') {
+         $setsections .= '    return;
+ }
+ ';
+     } else {
+         $setsections .= qq|
+     var elementLength = document.$formname.$role_element.length;
+     var allroles = Array($rolestr);
+     var courserolenames = Array($courserolestr);
+     var communityrolenames = Array($communityrolestr);
+     if (elementLength != undefined) {
+         if (document.$formname.$role_element.options[5].value == 'cc') {
+             if (crstype == 'Course') {
+                 return;
+             } else {
+                 allroles[5] = 'co';
+                 for (var i=0; i<6; i++) {
+                     document.$formname.$role_element.options[i].value = allroles[i];
+                     document.$formname.$role_element.options[i].text = communityrolenames[i];
+                 }
+             }
+         } else {
+             if (crstype == 'Community') {
+                 return;
+             } else {
+                 allroles[5] = 'cc';
+                 for (var i=0; i<6; i++) {
+                     document.$formname.$role_element.options[i].value = allroles[i];
+                     document.$formname.$role_element.options[i].text = courserolenames[i];
+                 }
+             }
+         }
+     }
+     return;
+ }
+ |;
+     }
+     if ($credits_element) {
+         $setsections .= qq|
+ function setCredits(defaultcredits) {
+     document.$formname.$credits_element.value = defaultcredits;
+     return;
+ }
+ |;
+     }
+     return $setsections;
  }
  sub selectcourse_link {
-    my ($form,$unameele,$udomele)=@_;
+    my ($form,$unameele,$udomele,$desc,$extra_element,$multflag,$selecttype,
-     return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
+        $typeelement) = @_;
-         '","'.$udomele.'");'."'>".&mt('Select Course')."</a>";
+    my $type = $selecttype;
+    my $linktext = &mt('Select Course');
+    if ($selecttype eq 'Community') {
+        $linktext = &mt('Select Community');
+    } elsif ($selecttype eq 'Course/Community') {
+        $linktext = &mt('Select Course/Community');
+        $type = '';
+    } elsif ($selecttype eq 'Select') {
+        $linktext = &mt('Select');
+        $type = '';
+    }
+    return '<span class="LC_nobreak">'
+          ."<a href='"
+          .'javascript:opencrsbrowser("'.$form.'","'.$unameele
+          .'","'.$udomele.'","'.$desc.'","'.$extra_element
+          .'","'.$multflag.'","'.$type.'","'.$typeelement.'");'
+          ."'>".$linktext.'</a>'
+          .'</span>';
+ }
+ sub selectauthor_link {
+    my ($form,$udom)=@_;
+    return '<a href="javascript:openauthorbrowser('."'$form','$udom'".');">'.
+           &mt('Select Author').'</a>';
+ }
+ sub selectuser_link {
+     my ($form,$unameelem,$domelem,$lastelem,$firstelem,$emailelem,$hdomelem,
+         $coursedom,$linktext,$caller) = @_;
+     return '<a href="javascript:openuserbrowser('."'$form','$unameelem','$domelem',".
+            "'$lastelem','$firstelem','$emailelem','$hdomelem','$coursedom','$caller'".
+            ');">'.$linktext.'</a>';
+ }
+ sub check_uncheck_jscript {
+     my $jscript = <<"ENDSCRT";
+ function checkAll(field) {
+     if (field.length > 0) {
+         for (i = 0; i < field.length; i++) {
+             if (!field[i].disabled) {
+                 field[i].checked = true;
+             }
+         }
+     } else {
+         if (!field.disabled) {
+             field.checked = true;
+         }
+     }
+ }
+ function uncheckAll(field) {
+     if (field.length > 0) {
+         for (i = 0; i < field.length; i++) {
+             field[i].checked = false ;
+         }
+     } else {
+         field.checked = false ;
+     }
+ }
+ ENDSCRT
+     return $jscript;
+ }
+ sub select_timezone {
+    my ($name,$selected,$onchange,$includeempty)=@_;
+    my $output='<select name="'.$name.'" '.$onchange.'>'."\n";
+    if ($includeempty) {
+        $output .= '<option value=""';
+        if (($selected eq '') || ($selected eq 'local')) {
+            $output .= ' selected="selected" ';
+        }
+        $output .= '> </option>';
+    }
+    my @timezones = DateTime::TimeZone->all_names;
+    foreach my $tzone (@timezones) {
+        $output.= '<option value="'.$tzone.'"';
+        if ($tzone eq $selected) {
+            $output.=' selected="selected"';
+        }
+        $output.=">$tzone</option>\n";
+    }
+    $output.="</select>";
+    return $output;
+ }
+ sub select_datelocale {
+     my ($name,$selected,$onchange,$includeempty)=@_;
+     my $output='<select name="'.$name.'" '.$onchange.'>'."\n";
+     if ($includeempty) {
+         $output .= '<option value=""';
+         if ($selected eq '') {
+             $output .= ' selected="selected" ';
+         }
+         $output .= '> </option>';
+     }
+     my (@possibles,%locale_names);
+     my @locales = DateTime::Locale::Catalog::Locales;
+     foreach my $locale (@locales) {
+         if (ref($locale) eq 'HASH') {
+             my $id = $locale->{'id'};
+             if ($id ne '') {
+                 my $en_terr = $locale->{'en_territory'};
+                 my $native_terr = $locale->{'native_territory'};
+                 my @languages = &Apache::lonlocal::preferred_languages();
+                 if (grep(/^en$/,@languages) || !@languages) {
+                     if ($en_terr ne '') {
+                         $locale_names{$id} = '('.$en_terr.')';
+                     } elsif ($native_terr ne '') {
+                         $locale_names{$id} = $native_terr;
+                     }
+                 } else {
+                     if ($native_terr ne '') {
+                         $locale_names{$id} = $native_terr.' ';
+                     } elsif ($en_terr ne '') {
+                         $locale_names{$id} = '('.$en_terr.')';
+                     }
+                 }
+                 push (@possibles,$id);
+             }
+         }
+     }
+     foreach my $item (sort(@possibles)) {
+         $output.= '<option value="'.$item.'"';
+         if ($item eq $selected) {
+             $output.=' selected="selected"';
+         }
+         $output.=">$item";
+         if ($locale_names{$item} ne '') {
+             $output.="  $locale_names{$item}</option>\n";
+         }
+         $output.="</option>\n";
+     }
+     $output.="</select>";
+     return $output;
+ }
+ sub select_language {
+     my ($name,$selected,$includeempty) = @_;
+     my %langchoices;
+     if ($includeempty) {
+         %langchoices = ('' => 'No language preference');
+     }
+     foreach my $id (&languageids()) {
+         my $code = &supportedlanguagecode($id);
+         if ($code) {
+             $langchoices{$code} = &plainlanguagedescription($id);
+         }
+     }
+     %langchoices = &Apache::lonlocal::texthash(%langchoices);
+     return &select_form($selected,$name,\%langchoices);
  }
  =pod
- =item * linked_select_forms(...)
+ =item * &list_languages()
+ Returns an array reference that is suitable for use in language prompters.
+ Each array element is itself a two element array.  The first element
+ is the language code.  The second element a descsriptiuon of the
+ language itself.  This is suitable for use in e.g.
+ &Apache::edit::select_arg (once dereferenced that is).
+ =cut
+ sub list_languages {
+     my @lang_choices;
+     foreach my $id (&languageids()) {
+ 	my $code = &supportedlanguagecode($id);
+ 	if ($code) {
+ 	    my $selector    = $supported_codes{$id};
+ 	    my $description = &plainlanguagedescription($id);
+ 	    push (@lang_choices, [$selector, $description]);
+ 	}
+     }
+     return \@lang_choices;
+ }
+ =pod
+ =item * &linked_select_forms(...)
  linked_select_forms returns a string containing a <script></script> block
  and html for two <select> menus.  The select menus will be linked in that
  changing the value of the first menu will result in new values being placed
  in the second menu.  The values in the select menu will appear in alphabetical
- order.
+ order unless a defined order is provided.
  linked_select_forms takes the following ordered inputs:
- Line 404  linked_select_forms takes the following
+ Line 1068  linked_select_forms takes the following
  =item * $hashref, a reference to a hash containing the data for the menus.
+ =item * $menuorder, the order of values in the first menu
+ =item * $onchangefirst, additional javascript call to execute for an onchange
+         event for the first <select> tag
+ =item * $onchangesecond, additional javascript call to execute for an onchange
+         event for the second <select> tag
  =back
  Below is an example of such a hash.  Only the 'text', 'default', and
- Line 420  $menu{$choice1}->{'select2'}.
+ Line 1092  $menu{$choice1}->{'select2'}.
                             B2 => "Choice B2",
                             B3 => "Choice B3",
                             B4 => "Choice B4"
-                            }
+                            },
+                        order => ['B4','B3','B1','B2'],
                     },
                 A2 => { text =>"Choice A2" ,
                         default => "C2",
- Line 428  $menu{$choice1}->{'select2'}.
+ Line 1101  $menu{$choice1}->{'select2'}.
                             C1 => "Choice C1",
                             C2 => "Choice C2",
                             C3 => "Choice C3"
-                            }
+                            },
+                        order => ['C2','C1','C3'],
                     },
                 A3 => { text =>"Choice A3" ,
                         default => "D6",
- Line 440  $menu{$choice1}->{'select2'}.
+ Line 1114  $menu{$choice1}->{'select2'}.
                             D5 => "Choice D5",
                             D6 => "Choice D6",
                             D7 => "Choice D7"
-                            }
+                            },
+                        order => ['D4','D3','D2','D1','D7','D6','D5'],
                     }
                 );
- Line 452  sub linked_select_forms {
+ Line 1127  sub linked_select_forms {
          $firstdefault,
          $firstselectname,
          $secondselectname,
-         $hashref
+         $hashref,
+         $menuorder,
+         $onchangefirst,
+         $onchangesecond
          ) = @_;
      my $second = "document.$formname.$secondselectname";
      my $first = "document.$formname.$firstselectname";
      # output the javascript to do the changing
      my $result = '';
-     $result.="<script>\n";
+     $result.='<script type="text/javascript" language="JavaScript">'."\n";
+     $result.="// <![CDATA[\n";
      $result.="var select2data = new Object();\n";
      $" = '","';
      my $debug = '';
- Line 466  sub linked_select_forms {
+ Line 1145  sub linked_select_forms {
          $result.="select2data.d_$s1 = new Object();\n";
          $result.="select2data.d_$s1.def = new String('".
              $hashref->{$s1}->{'default'}."');\n";
          $result.="select2data.d_$s1.values = new Array(";
          my @s2values = sort(keys( %{ $hashref->{$s1}->{'select2'} } ));
+         if (ref($hashref->{$s1}->{'order'}) eq 'ARRAY') {
+             @s2values = @{$hashref->{$s1}->{'order'}};
+         }
          $result.="\"@s2values\");\n";
          $result.="select2data.d_$s1.texts = new Array(";
          my @s2texts;
- Line 501  function select1_changed() {
+ Line 1183  function select1_changed() {
          }
      }
  }
+ // ]]>
  </script>
  END
      # output the initial values for the selection lists
-     $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";
+     $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed();$onchangefirst\">\n";
-     foreach my $value (sort(keys(%$hashref))) {
+     my @order = sort(keys(%{$hashref}));
+     if (ref($menuorder) eq 'ARRAY') {
+         @order = @{$menuorder};
+     }
+     foreach my $value (@order) {
          $result.="    <option value=\"$value\" ";
-         $result.=" selected=\"true\" " if ($value eq $firstdefault);
+         $result.=" selected=\"selected\" " if ($value eq $firstdefault);
          $result.=">".&mt($hashref->{$value}->{'text'})."</option>\n";
      }
      $result .= "</select>\n";
      my %select2 = %{$hashref->{$firstdefault}->{'select2'}};
      $result .= $middletext;
-     $result .= "<select size=\"1\" name=\"$secondselectname\">\n";
+     $result .= "<select size=\"1\" name=\"$secondselectname\"";
+     if ($onchangesecond) {
+         $result .= ' onchange="'.$onchangesecond.'"';
+     }
+     $result .= ">\n";
      my $seconddefault = $hashref->{$firstdefault}->{'default'};
-     foreach my $value (sort(keys(%select2))) {
+     my @secondorder = sort(keys(%select2));
+     if (ref($hashref->{$firstdefault}->{'order'}) eq 'ARRAY') {
+         @secondorder = @{$hashref->{$firstdefault}->{'order'}};
+     }
+     foreach my $value (@secondorder) {
          $result.="    <option value=\"$value\" ";
-         $result.=" selected=\"true\" " if ($value eq $seconddefault);
+         $result.=" selected=\"selected\" " if ($value eq $seconddefault);
          $result.=">".&mt($select2{$value})."</option>\n";
      }
      $result .= "</select>\n";
- Line 527  END
+ Line 1223  END
  =pod
- =item * help_open_topic($topic, $text, $stayOnPage, $width, $height)
+ =item * &help_open_topic($topic,$text,$stayOnPage,$width,$height,$imgid)
  Returns a string corresponding to an HTML link to the given help
  $topic, where $topic corresponds to the name of a .tex file in
- Line 545  a new window using Javascript. (Default
+ Line 1241  a new window using Javascript. (Default
  $width and $height are optional numerical parameters that will
  override the width and height of the popped up window, which may
  be useful for certain help topics with big pictures included.
+ $imgid is the id of the img tag used for the help icon. This may be
+ used in a javascript call to switch the image src.  See
+ lonhtmlcommon::htmlareaselectactive() for an example.
  =cut
  sub help_open_topic {
-     my ($topic, $text, $stayOnPage, $width, $height) = @_;
+     my ($topic, $text, $stayOnPage, $width, $height, $imgid) = @_;
      $text = "" if (not defined $text);
      $stayOnPage = 0 if (not defined $stayOnPage);
-     if ($ENV{'browser.interface'} eq 'textual' ||
+     $width = 500 if (not defined $width);
- 	$ENV{'environment.remote'} eq 'off' ) {
- 	$stayOnPage=1;
-     }
-     $width = 350 if (not defined $width);
      $height = 400 if (not defined $height);
      my $filename = $topic;
      $filename =~ s/ /_/g;
      my $template = "";
      my $link;
+     $topic=~s/\W/\_/g;
+     if (!$stayOnPage) {
+ 	$link = "javascript:openMyModal('/adm/help/${filename}.hlp',$width,$height,'yes');";
+     } elsif ($stayOnPage eq 'popup') {
+         $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
+     } else {
+ 	$link = "/adm/help/${filename}.hlp";
+     }
+     # Add the text
+     if ($text ne "") {
+ 	$template.='<span class="LC_help_open_topic">'
+                   .'<a target="_top" href="'.$link.'">'
+                   .$text.'</a>';
+     }
+     # (Always) Add the graphic
+     my $title = &mt('Online Help');
+     my $helpicon=&lonhttpdurl("/adm/help/help.png");
+     if ($imgid ne '') {
+         $imgid = ' id="'.$imgid.'"';
+     }
+     $template.=' <a target="_top" href="'.$link.'" title="'.$title.'">'
+               .'<img src="'.$helpicon.'" border="0"'
+               .' alt="'.&mt('Help: [_1]',$topic).'"'
+               .' title="'.$title.'" style="vertical-align:middle;"'.$imgid
+               .' /></a>';
+     if ($text ne "") {
+         $template.='</span>';
+     }
+     return $template;
+ }
+ # This is a quicky function for Latex cheatsheet editing, since it
+ # appears in at least four places
+ sub helpLatexCheatsheet {
+     my ($topic,$text,$not_author,$stayOnPage) = @_;
+     my $out;
+     my $addOther = '';
+     if ($topic) {
+ 	$addOther = '<span>'.&help_open_topic($topic,&mt($text),$stayOnPage, undef, 600).'</span> ';
+     }
+     $out = '<span>' # Start cheatsheet
+ 	  .$addOther
+           .'<span>'
+ 	  .&help_open_topic('Greek_Symbols',&mt('Greek Symbols'),$stayOnPage,undef,600)
+ 	  .'</span> <span>'
+ 	  .&help_open_topic('Other_Symbols',&mt('Other Symbols'),$stayOnPage,undef,600)
+ 	  .'</span>';
+     unless ($not_author) {
+         $out .= ' <span>'
+ 	       .&help_open_topic('Authoring_Output_Tags',&mt('Output Tags'),$stayOnPage,undef,600)
+ 	       .'</span>';
+     }
+     $out .= '</span>'; # End cheatsheet
+     return $out;
+ }
+ sub general_help {
+     my $helptopic='Student_Intro';
+     if ($env{'request.role'}=~/^(ca|au)/) {
+ 	$helptopic='Authoring_Intro';
+     } elsif ($env{'request.role'}=~/^(cc|co)/) {
+ 	$helptopic='Course_Coordination_Intro';
+     } elsif ($env{'request.role'}=~/^dc/) {
+         $helptopic='Domain_Coordination_Intro';
+     }
+     return $helptopic;
+ }
+ sub update_help_link {
+     my ($topic,$component_help,$faq,$bug,$stayOnPage) = @_;
+     my $origurl = $ENV{'REQUEST_URI'};
+     $origurl=~s|^/~|/priv/|;
+     my $timestamp = time;
+     foreach my $datum (\$topic,\$component_help,\$faq,\$bug,\$origurl) {
+         $$datum = &escape($$datum);
+     }
+     my $banner_link = "/adm/helpmenu?page=banner&amp;topic=$topic&amp;component_help=$component_help&amp;faq=$faq&amp;bug=$bug&amp;origurl=$origurl&amp;stamp=$timestamp&amp;stayonpage=$stayOnPage";
+     my $output .= <<"ENDOUTPUT";
+ <script type="text/javascript">
+ // <![CDATA[
+ banner_link = '$banner_link';
+ // ]]>
+ </script>
+ ENDOUTPUT
+     return $output;
+ }
+ # now just updates the help link and generates a blue icon
+ sub help_open_menu {
+     my ($topic,$component_help,$faq,$bug,$stayOnPage,$width,$height,$text)
+ 	= @_;
+     $stayOnPage = 1;
+     my $output;
+     if ($component_help) {
+ 	if (!$text) {
+ 	    $output=&help_open_topic($component_help,undef,$stayOnPage,
+ 				       $width,$height);
+ 	} else {
+ 	    my $help_text;
+ 	    $help_text=&unescape($topic);
+ 	    $output='<table><tr><td>'.
+ 		&help_open_topic($component_help,$help_text,$stayOnPage,
+ 				 $width,$height).'</td></tr></table>';
+ 	}
+     }
+     my $banner_link = &update_help_link($topic,$component_help,$faq,$bug,$stayOnPage);
+     return $output.$banner_link;
+ }
+ sub top_nav_help {
+     my ($text) = @_;
+     $text = &mt($text);
+     my $stay_on_page = 1;
+     my $link = ($stay_on_page) ? "javascript:helpMenu('display')"
+ 	                     : "javascript:helpMenu('open')";
+     my $banner_link = &update_help_link(undef,undef,undef,undef,$stay_on_page);
+     my $title = &mt('Get help');
+     return <<"END";
+ $banner_link
+  <a href="$link" title="$title">$text</a>
+ END
+ }
+ sub help_menu_js {
+     my ($text) = @_;
+     my $stayOnPage = 1;
+     my $width = 620;
+     my $height = 600;
+     my $helptopic=&general_help();
+     my $details_link = '/adm/help/'.$helptopic.'.hlp';
+     my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
+     my $start_page =
+         &Apache::loncommon::start_page('Help Menu', undef,
+ 				       {'frameset'    => 1,
+ 					'js_ready'    => 1,
+ 					'add_entries' => {
+ 					    'border' => '0',
+ 					    'rows'   => "110,*",},});
+     my $end_page =
+         &Apache::loncommon::end_page({'frameset' => 1,
+ 				      'js_ready' => 1,});
+     my $template .= <<"ENDTEMPLATE";
+ <script type="text/javascript">
+ // <![CDATA[
+ // <!-- BEGIN LON-CAPA Internal
+ var banner_link = '';
+ function helpMenu(target) {
+     var caller = this;
+     if (target == 'open') {
+         var newWindow = null;
+         try {
+             newWindow =  window.open($nothing,"helpmenu","HEIGHT=$height,WIDTH=$width,resizable=yes,scrollbars=yes" )
+         }
+         catch(error) {
+             writeHelp(caller);
+             return;
+         }
+         if (newWindow) {
+             caller = newWindow;
+         }
+     }
+     writeHelp(caller);
+     return;
+ }
+ function writeHelp(caller) {
+     caller.document.writeln('$start_page\\n<frame name="bannerframe" src="'+banner_link+'" />\\n<frame name="bodyframe" src="$details_link" />\\n$end_page')
+     caller.document.close()
+     caller.focus()
+ }
+ // END LON-CAPA Internal -->
+ // ]]>
+ </script>
+ ENDTEMPLATE
+     return $template;
+ }
+ sub help_open_bug {
+     my ($topic, $text, $stayOnPage, $width, $height) = @_;
+     unless ($env{'user.adv'}) { return ''; }
+     unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
+     $text = "" if (not defined $text);
+ 	$stayOnPage=1;
+     $width = 600 if (not defined $width);
+     $height = 600 if (not defined $height);
+     $topic=~s/\W+/\+/g;
+     my $link='';
+     my $template='';
+     my $url=$Apache::lonnet::perlvar{'BugzillaHost'}.'enter_bug.cgi?product=LON-CAPA&amp;bug_file_loc='.
+ 	&escape($ENV{'REQUEST_URI'}).'&amp;component='.$topic;
      if (!$stayOnPage)
      {
- 	$link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
+ 	$link = "javascript:void(open('$url', 'Bugzilla', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
      }
      else
      {
- 	$link = "/adm/help/${filename}.hlp";
+ 	$link = $url;
      }
      # Add the text
      if ($text ne "")
      {
  	$template .=
-   "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
+   "<table bgcolor='#AA3333' cellspacing='1' cellpadding='1' border='0'><tr>".
-   "<td bgcolor='#5555FF'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
+   "<td bgcolor='#FF5555'><a target=\"_top\" href=\"$link\"><span style=\"color:#FFFFFF;font-size:10pt;\">$text</span></a>";
      }
      # Add the graphic
+     my $title = &mt('Report a Bug');
+     my $bugicon=&lonhttpdurl("/adm/lonMisc/smallBug.gif");
      $template .= <<"ENDTEMPLATE";
-  <a href="$link"><image src="/adm/help/gif/smallHelp.gif" border="0" alt="(Help: $topic)" /></a>
+  <a target="_top" href="$link" title="$title"><img src="$bugicon" border="0" alt="(Bug: $topic)" /></a>
  ENDTEMPLATE
      if ($text ne '') { $template.='</td></tr></table>' };
      return $template;
  }
- # This is a quicky function for Latex cheatsheet editing, since it
+ sub help_open_faq {
- # appears in at least four places
+     my ($topic, $text, $stayOnPage, $width, $height) = @_;
- sub helpLatexCheatsheet {
+     unless ($env{'user.adv'}) { return ''; }
-     my $other = shift;
+     unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
-     my $addOther = '';
+     $text = "" if (not defined $text);
-     if ($other) {
+ 	$stayOnPage=1;
- 	$addOther = Apache::loncommon::help_open_topic($other, shift,
+     $width = 350 if (not defined $width);
- 						       undef, undef, 600) .
+     $height = 400 if (not defined $height);
- 							   '</td><td>';
-     }
-     return '<table><tr><td>'.
- 	$addOther .
- 	&Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols',
- 					    undef,undef,600)
- 	.'</td><td>'.
- 	&Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols',
- 					    undef,undef,600)
- 	.'</td></tr></table>';
- }
- =pod
- =item * csv_translate($text)
+     $topic=~s/\W+/\+/g;
+     my $link='';
+     my $template='';
+     my $url=$Apache::lonnet::perlvar{'FAQHost'}.'/fom/cache/'.$topic.'.html';
+     if (!$stayOnPage)
+     {
+ 	$link = "javascript:void(open('$url', 'FAQ-O-Matic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
+     }
+     else
+     {
+ 	$link = $url;
+     }
- Translate $text to allow it to be output as a 'comma seperated values'
+     # Add the text
- format.
+     if ($text ne "")
+     {
+ 	$template .=
+   "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
+   "<td bgcolor='#448844'><a target=\"_top\" href=\"$link\"><span style=\"color:#FFFFFF; font-size:10pt;\">$text</span></a>";
+     }
- =cut
+     # Add the graphic
+     my $title = &mt('View the FAQ');
+     my $faqicon=&lonhttpdurl("/adm/lonMisc/smallFAQ.gif");
+     $template .= <<"ENDTEMPLATE";
+  <a target="_top" href="$link" title="$title"><img src="$faqicon" border="0" alt="(FAQ: $topic)" /></a>
+ ENDTEMPLATE
+     if ($text ne '') { $template.='</td></tr></table>' };
+     return $template;
- sub csv_translate {
-     my $text = shift;
-     $text =~ s/\"/\"\"/g;
-     $text =~ s/\n//g;
-     return $text;
  }
+ ###############################################################
+ ###############################################################
  =pod
- =item * change_content_javascript():
+ =item * &change_content_javascript():
  This and the next function allow you to create small sections of an
  otherwise static HTML page that you can update on the fly with
- Line 659  pretty much any HTML.
+ Line 1563  pretty much any HTML.
  sub change_content_javascript {
      # If we're on Netscape 4, we need to use Layer-based code
-     if ($ENV{'browser.type'} eq 'netscape' &&
+     if ($env{'browser.type'} eq 'netscape' &&
- 	$ENV{'browser.version'} =~ /^4\./) {
+ 	$env{'browser.version'} =~ /^4\./) {
  	return (<<NETSCAPE4);
  	function change(name, content) {
  	    doc = document.layers[name+"___escape"].layers[0].document;
- Line 684  DOMBASED
+ Line 1588  DOMBASED
  =pod
- =item * changable_area($name, $origContent):
+ =item * &changable_area($name,$origContent):
  This provides a "changable area" that can be modified on the fly via
  the Javascript code provided in C<change_content_javascript>. $name is
- Line 697  the area will originally contain, which
+ Line 1601  the area will originally contain, which
  sub changable_area {
      my ($name, $origContent) = @_;
-     if ($ENV{'browser.type'} eq 'netscape' &&
+     if ($env{'browser.type'} eq 'netscape' &&
- 	$ENV{'browser.version'} =~ /^4\./) {
+ 	$env{'browser.version'} =~ /^4\./) {
  	# If this is netscape 4, we need to use the Layer tag
  	return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";
      } else {
- Line 708  sub changable_area {
+ Line 1612  sub changable_area {
  =pod
+ =item * &viewport_geometry_js
+ Provides javascript object (Geometry) which can provide information about the viewport geometry for the client browser.
+ =cut
+ sub viewport_geometry_js {
+     return <<"GEOMETRY";
+ var Geometry = {};
+ function init_geometry() {
+     if (Geometry.init) { return };
+     Geometry.init=1;
+     if (window.innerHeight) {
+         Geometry.getViewportHeight   = function() { return window.innerHeight; };
+         Geometry.getViewportWidth   = function() { return window.innerWidth; };
+         Geometry.getHorizontalScroll = function() { return window.pageXOffset; };
+         Geometry.getVerticalScroll   = function() { return window.pageYOffset; };
+     }
+     else if (document.documentElement && document.documentElement.clientHeight) {
+         Geometry.getViewportHeight =
+             function() { return document.documentElement.clientHeight; };
+         Geometry.getViewportWidth =
+             function() { return document.documentElement.clientWidth; };
+         Geometry.getHorizontalScroll =
+             function() { return document.documentElement.scrollLeft; };
+         Geometry.getVerticalScroll =
+             function() { return document.documentElement.scrollTop; };
+     }
+     else if (document.body.clientHeight) {
+         Geometry.getViewportHeight =
+             function() { return document.body.clientHeight; };
+         Geometry.getViewportWidth =
+             function() { return document.body.clientWidth; };
+         Geometry.getHorizontalScroll =
+             function() { return document.body.scrollLeft; };
+         Geometry.getVerticalScroll =
+             function() { return document.body.scrollTop; };
+     }
+ }
+ GEOMETRY
+ }
+ =pod
+ =item * &viewport_size_js()
+ Provides a javascript function to set values of two form elements - width and height (elements are passed in as arguments to the javascript function) to the dimensions of the user's browser window.
+ =cut
+ sub viewport_size_js {
+     my $geometry = &viewport_geometry_js();
+     return <<"DIMS";
+ $geometry
+ function getViewportDims(width,height) {
+     init_geometry();
+     width.value = Geometry.getViewportWidth();
+     height.value = Geometry.getViewportHeight();
+     return;
+ }
+ DIMS
+ }
+ =pod
+ =item * &resize_textarea_js()
+ emits the needed javascript to resize a textarea to be as big as possible
+ creates a function resize_textrea that takes two IDs first should be
+ the id of the element to resize, second should be the id of a div that
+ surrounds everything that comes after the textarea, this routine needs
+ to be attached to the <body> for the onload and onresize events.
+ =back
+ =cut
+ sub resize_textarea_js {
+     my $geometry = &viewport_geometry_js();
+     return <<"RESIZE";
+     <script type="text/javascript">
+ // <![CDATA[
+ $geometry
+ function getX(element) {
+     var x = 0;
+     while (element) {
+ 	x += element.offsetLeft;
+ 	element = element.offsetParent;
+     }
+     return x;
+ }
+ function getY(element) {
+     var y = 0;
+     while (element) {
+ 	y += element.offsetTop;
+ 	element = element.offsetParent;
+     }
+     return y;
+ }
+ function resize_textarea(textarea_id,bottom_id) {
+     init_geometry();
+     var textarea        = document.getElementById(textarea_id);
+     //alert(textarea);
+     var textarea_top    = getY(textarea);
+     var textarea_height = textarea.offsetHeight;
+     var bottom          = document.getElementById(bottom_id);
+     var bottom_top      = getY(bottom);
+     var bottom_height   = bottom.offsetHeight;
+     var window_height   = Geometry.getViewportHeight();
+     var fudge           = 23;
+     var new_height      = window_height-fudge-textarea_top-bottom_height;
+     if (new_height < 300) {
+ 	new_height = 300;
+     }
+     textarea.style.height=new_height+'px';
+ }
+ // ]]>
+ </script>
+ RESIZE
+ }
+ =pod
+ =head1 Excel and CSV file utility routines
+ =over 4
+ =cut
+ ###############################################################
+ ###############################################################
+ =pod
+ =item * &csv_translate($text)
+ Translate $text to allow it to be output as a 'comma separated values'
+ format.
+ =cut
+ ###############################################################
+ ###############################################################
+ sub csv_translate {
+     my $text = shift;
+     $text =~ s/\"/\"\"/g;
+     $text =~ s/\n/ /g;
+     return $text;
+ }
+ ###############################################################
+ ###############################################################
+ =pod
+ =item * &define_excel_formats()
+ Define some commonly used Excel cell formats.
+ Currently supported formats:
+ =over 4
+ =item header
+ =item bold
+ =item h1
+ =item h2
+ =item h3
+ =item h4
+ =item i
+ =item date
+ =back
+ Inputs: $workbook
+ Returns: $format, a hash reference.
+ =cut
+ ###############################################################
+ ###############################################################
+ sub define_excel_formats {
+     my ($workbook) = @_;
+     my $format;
+     $format->{'header'} = $workbook->add_format(bold      => 1,
+                                                 bottom    => 1,
+                                                 align     => 'center');
+     $format->{'bold'} = $workbook->add_format(bold=>1);
+     $format->{'h1'}   = $workbook->add_format(bold=>1, size=>18);
+     $format->{'h2'}   = $workbook->add_format(bold=>1, size=>16);
+     $format->{'h3'}   = $workbook->add_format(bold=>1, size=>14);
+     $format->{'h4'}   = $workbook->add_format(bold=>1, size=>12);
+     $format->{'i'}    = $workbook->add_format(italic=>1);
+     $format->{'date'} = $workbook->add_format(num_format=>
+                                             'mm/dd/yyyy hh:mm:ss');
+     return $format;
+ }
+ ###############################################################
+ ###############################################################
+ =pod
+ =item * &create_workbook()
+ Create an Excel worksheet.  If it fails, output message on the
+ request object and return undefs.
+ Inputs: Apache request object
+ Returns (undef) on failure,
+     Excel worksheet object, scalar with filename, and formats
+     from &Apache::loncommon::define_excel_formats on success
+ =cut
+ ###############################################################
+ ###############################################################
+ sub create_workbook {
+     my ($r) = @_;
+         #
+     # Create the excel spreadsheet
+     my $filename = '/prtspool/'.
+         $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
+         time.'_'.rand(1000000000).'.xls';
+     my $workbook  = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
+     if (! defined($workbook)) {
+         $r->log_error("Error creating excel spreadsheet $filename: $!");
+         $r->print(
+             '<p class="LC_error">'
+            .&mt('Problems occurred in creating the new Excel file.')
+            .' '.&mt('This error has been logged.')
+            .' '.&mt('Please alert your LON-CAPA administrator.')
+            .'</p>'
+         );
+         return (undef);
+     }
+     #
+     $workbook->set_tempdir(LONCAPA::tempdir());
+     #
+     my $format = &Apache::loncommon::define_excel_formats($workbook);
+     return ($workbook,$filename,$format);
+ }
+ ###############################################################
+ ###############################################################
+ =pod
+ =item * &create_text_file()
+ Create a file to write to and eventually make available to the user.
+ If file creation fails, outputs an error message on the request object and
+ return undefs.
+ Inputs: Apache request object, and file suffix
+ Returns (undef) on failure,
+     Filehandle and filename on success.
+ =cut
+ ###############################################################
+ ###############################################################
+ sub create_text_file {
+     my ($r,$suffix) = @_;
+     if (! defined($suffix)) { $suffix = 'txt'; };
+     my $fh;
+     my $filename = '/prtspool/'.
+         $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
+         time.'_'.rand(1000000000).'.'.$suffix;
+     $fh = Apache::File->new('>/home/httpd'.$filename);
+     if (! defined($fh)) {
+         $r->log_error("Couldn't open $filename for output $!");
+         $r->print(
+             '<p class="LC_error">'
+            .&mt('Problems occurred in creating the output file.')
+            .' '.&mt('This error has been logged.')
+            .' '.&mt('Please alert your LON-CAPA administrator.')
+            .'</p>'
+         );
+     }
+     return ($fh,$filename)
+ }
+ =pod
  =back
  =cut
- Line 716  sub changable_area {
+ Line 1929  sub changable_area {
  ##        Home server <option> list generating code          ##
  ###############################################################
+ # ------------------------------------------
+ sub domain_select {
+     my ($name,$value,$multiple)=@_;
+     my %domains=map {
+ 	$_ => $_.' '. &Apache::lonnet::domain($_,'description')
+     } &Apache::lonnet::all_domains();
+     if ($multiple) {
+ 	$domains{''}=&mt('Any domain');
+ 	$domains{'select_form_order'} = [sort {lc($a) cmp lc($b) } (keys(%domains))];
+ 	return &multiple_select_form($name,$value,4,\%domains);
+     } else {
+ 	$domains{'select_form_order'} = [sort {lc($a) cmp lc($b) } (keys(%domains))];
+ 	return &select_form($name,$value,\%domains);
+     }
+ }
+ #-------------------------------------------
  =pod
- =head1 Home Server option list generating code
+ =head1 Routines for form select boxes
  =over 4
- =item * get_domains()
+ =item * &multiple_select_form($name,$value,$size,$hash,$order)
- Returns an array containing each of the domains listed in the hosts.tab
+ Returns a string containing a <select> element int multiple mode
- file.
+ Args:
+   $name - name of the <select> element
+   $value - scalar or array ref of values that should already be selected
+   $size - number of rows long the select element is
+   $hash - the elements should be 'option' => 'shown text'
+           (shown text should already have been &mt())
+   $order - (optional) array ref of the order to show the elements in
  =cut
  #-------------------------------------------
- sub get_domains {
+ sub multiple_select_form {
-     # The code below was stolen from "The Perl Cookbook", p 102, 1st ed.
+     my ($name,$value,$size,$hash,$order)=@_;
-     my @domains;
+     my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
-     my %seen;
+     my $output='';
-     foreach (sort values(%Apache::lonnet::hostdom)) {
+     if (! defined($size)) {
-         push (@domains,$_) unless $seen{$_}++;
+         $size = 4;
+         if (scalar(keys(%$hash))<4) {
+             $size = scalar(keys(%$hash));
+         }
+     }
+     $output.="\n".'<select name="'.$name.'" size="'.$size.'" multiple="multiple">';
+     my @order;
+     if (ref($order) eq 'ARRAY')  {
+         @order = @{$order};
+     } else {
+         @order = sort(keys(%$hash));
+     }
+     if (exists($$hash{'select_form_order'})) {
+         @order = @{$$hash{'select_form_order'}};
      }
-     return @domains;
+     foreach my $key (@order) {
+         $output.='<option value="'.&HTML::Entities::encode($key,'"<>&').'" ';
+         $output.='selected="selected" ' if ($selected{$key});
+         $output.='>'.$hash->{$key}."</option>\n";
+     }
+     $output.="</select>\n";
+     return $output;
  }
  #-------------------------------------------
  =pod
- =item * select_form($defdom,$name,%hash)
+ =item * &select_form($defdom,$name,$hashref,$onchange)
  Returns a string containing a <select name='$name' size='1'> form to
- allow a user to select options from a hash option_name => displayed text.
+ allow a user to select options from a ref to a hash containing:
+ option_name => displayed text. An optional $onchange can include
+ a javascript onchange item, e.g., onchange="this.form.submit();"
  See lonrights.pm for an example invocation and use.
  =cut
  #-------------------------------------------
  sub select_form {
-     my ($def,$name,%hash) = @_;
+     my ($def,$name,$hashref,$onchange) = @_;
-     my $selectform = "<select name=\"$name\" size=\"1\">\n";
+     return unless (ref($hashref) eq 'HASH');
+     if ($onchange) {
+         $onchange = ' onchange="'.$onchange.'"';
+     }
+     my $selectform = "<select name=\"$name\" size=\"1\"$onchange>\n";
      my @keys;
-     if (exists($hash{'select_form_order'})) {
+     if (exists($hashref->{'select_form_order'})) {
- 	@keys=@{$hash{'select_form_order'}};
+ 	@keys=@{$hashref->{'select_form_order'}};
      } else {
- 	@keys=sort(keys(%hash));
+ 	@keys=sort(keys(%{$hashref}));
      }
-     foreach (@keys) {
+     foreach my $key (@keys) {
-         $selectform.="<option value=\"$_\" ".
+         $selectform.=
-             ($_ eq $def ? 'selected' : '').
+ 	    '<option value="'.&HTML::Entities::encode($key,'"<>&').'" '.
-                 ">".&mt($hash{$_})."</option>\n";
+             ($key eq $def ? 'selected="selected" ' : '').
+                 ">".$hashref->{$key}."</option>\n";
      }
      $selectform.="</select>";
      return $selectform;
  }
+ # For display filters
+ sub display_filter {
+     my ($context) = @_;
+     if (!$env{'form.show'}) { $env{'form.show'}=10; }
+     if (!$env{'form.displayfilter'}) { $env{'form.displayfilter'}='currentfolder'; }
+     my $phraseinput = 'hidden';
+     my $includeinput = 'hidden';
+     my ($checked,$includetypestext);
+     if ($env{'form.displayfilter'} eq 'containing') {
+         $phraseinput = 'text';
+         if ($context eq 'parmslog') {
+             $includeinput = 'checkbox';
+             if ($env{'form.includetypes'}) {
+                 $checked = ' checked="checked"';
+             }
+             $includetypestext = &mt('Include parameter types');
+         }
+     } else {
+         $includetypestext = '&nbsp;';
+     }
+     my ($additional,$secondid,$thirdid);
+     if ($context eq 'parmslog') {
+         $additional =
+             '<label><input type="'.$includeinput.'" name="includetypes"'.
+             $checked.' name="includetypes" value="1" id="includetypes" />'.
+             '&nbsp;<span id="includetypestext">'.$includetypestext.'</span>'.
+             '</label>';
+         $secondid = 'includetypes';
+         $thirdid = 'includetypestext';
+     }
+     my $onchange = "javascript:toggleHistoryOptions(this,'containingphrase','$context',
+                                                     '$secondid','$thirdid')";
+     return '<span class="LC_nobreak"><label>'.&mt('Records: [_1]',
+ 			       &Apache::lonmeta::selectbox('show',$env{'form.show'},undef,
+ 							   (&mt('all'),10,20,50,100,1000,10000))).
+ 	   '</label></span> <span class="LC_nobreak">'.
+            &mt('Filter: [_1]',
+ 	   &select_form($env{'form.displayfilter'},
+ 			'displayfilter',
+ 			{'currentfolder' => 'Current folder/page',
+ 			 'containing' => 'Containing phrase',
+ 			 'none' => 'None'},$onchange)).'&nbsp;'.
+ 			 '<input type="'.$phraseinput.'" name="containingphrase" id="containingphrase" size="30" value="'.
+                          &HTML::Entities::encode($env{'form.containingphrase'}).
+                          '" />'.$additional;
+ }
+ sub display_filter_js {
+     my $includetext = &mt('Include parameter types');
+     return <<"ENDJS";
+ function toggleHistoryOptions(setter,firstid,context,secondid,thirdid) {
+     var firstType = 'hidden';
+     if (setter.options[setter.selectedIndex].value == 'containing') {
+         firstType = 'text';
+     }
+     firstObject = document.getElementById(firstid);
+     if (typeof(firstObject) == 'object') {
+         if (firstObject.type != firstType) {
+             changeInputType(firstObject,firstType);
+         }
+     }
+     if (context == 'parmslog') {
+         var secondType = 'hidden';
+         if (firstType == 'text') {
+             secondType = 'checkbox';
+         }
+         secondObject = document.getElementById(secondid);
+         if (typeof(secondObject) == 'object') {
+             if (secondObject.type != secondType) {
+                 changeInputType(secondObject,secondType);
+             }
+         }
+         var textItem = document.getElementById(thirdid);
+         var currtext = textItem.innerHTML;
+         var newtext;
+         if (firstType == 'text') {
+             newtext = '$includetext';
+         } else {
+             newtext = '&nbsp;';
+         }
+         if (currtext != newtext) {
+             textItem.innerHTML = newtext;
+         }
+     }
+     return;
+ }
+ function changeInputType(oldObject,newType) {
+     var newObject = document.createElement('input');
+     newObject.type = newType;
+     if (oldObject.size) {
+         newObject.size = oldObject.size;
+     }
+     if (oldObject.value) {
+         newObject.value = oldObject.value;
+     }
+     if (oldObject.name) {
+         newObject.name = oldObject.name;
+     }
+     if (oldObject.id) {
+         newObject.id = oldObject.id;
+     }
+     oldObject.parentNode.replaceChild(newObject,oldObject);
+     return;
+ }
+ ENDJS
+ }
+ sub gradeleveldescription {
+     my $gradelevel=shift;
+     my %gradelevels=(0 => 'Not specified',
+=> 'Grade 1',
+=> 'Grade 2',
+=> 'Grade 3',
+=> 'Grade 4',
+=> 'Grade 5',
+=> 'Grade 6',
+=> 'Grade 7',
+=> 'Grade 8',
+=> 'Grade 9',
+=> 'Grade 10',
+=> 'Grade 11',
+=> 'Grade 12',
+=> 'Grade 13',
+=> '100 Level',
+=> '200 Level',
+=> '300 Level',
+=> '400 Level',
+=> 'Graduate Level');
+     return &mt($gradelevels{$gradelevel});
+ }
+ sub select_level_form {
+     my ($deflevel,$name)=@_;
+     unless ($deflevel) { $deflevel=0; }
+     my $selectform = "<select name=\"$name\" size=\"1\">\n";
+     for (my $i=0; $i<=18; $i++) {
+         $selectform.="<option value=\"$i\" ".
+             ($i==$deflevel ? 'selected="selected" ' : '').
+                 ">".&gradeleveldescription($i)."</option>\n";
+     }
+     $selectform.="</select>";
+     return $selectform;
+ }
  #-------------------------------------------
  =pod
- =item * select_dom_form($defdom,$name,$includeempty)
+ =item * &select_dom_form($defdom,$name,$includeempty,$showdomdesc,$onchange,$incdoms,$excdoms)
  Returns a string containing a <select name='$name' size='1'> form to
  allow a user to select the domain to preform an operation in.
- Line 785  See loncreateuser.pm for an example invo
+ Line 2200  See loncreateuser.pm for an example invo
  If the $includeempty flag is set, it also includes an empty choice ("no domain
  selected");
+ If the $showdomdesc flag is set, the domain name is followed by the domain description.
+ The optional $onchange argument specifies what should occur if the domain selector is changed, e.g., 'this.form.submit()' if the form is to be automatically submitted.
+ The optional $incdoms is a reference to an array of domains which will be the only available options.
+ The optional $excdoms is a reference to an array of domains which will be excluded from the available options.
  =cut
  #-------------------------------------------
  sub select_dom_form {
-     my ($defdom,$name,$includeempty) = @_;
+     my ($defdom,$name,$includeempty,$showdomdesc,$onchange,$incdoms,$excdoms) = @_;
-     my @domains = get_domains();
+     if ($onchange) {
+         $onchange = ' onchange="'.$onchange.'"';
+     }
+     my (@domains,%exclude);
+     if (ref($incdoms) eq 'ARRAY') {
+         @domains = sort {lc($a) cmp lc($b)} (@{$incdoms});
+     } else {
+         @domains = sort {lc($a) cmp lc($b)} (&Apache::lonnet::all_domains());
+     }
      if ($includeempty) { @domains=('',@domains); }
-     my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
+     if (ref($excdoms) eq 'ARRAY') {
-     foreach (@domains) {
+         map { $exclude{$_} = 1; } @{$excdoms};
-         $selectdomain.="<option value=\"$_\" ".
+     }
-             ($_ eq $defdom ? 'selected' : '').
+     my $selectdomain = "<select name=\"$name\" size=\"1\"$onchange>\n";
-                 ">$_</option>\n";
+     foreach my $dom (@domains) {
+         next if ($exclude{$dom});
+         $selectdomain.="<option value=\"$dom\" ".
+             ($dom eq $defdom ? 'selected="selected" ' : '').'>'.$dom;
+         if ($showdomdesc) {
+             if ($dom ne '') {
+                 my $domdesc = &Apache::lonnet::domain($dom,'description');
+                 if ($domdesc ne '') {
+                     $selectdomain .= ' ('.$domdesc.')';
+                 }
+             }
+         }
+         $selectdomain .= "</option>\n";
      }
      $selectdomain.="</select>";
      return $selectdomain;
- Line 806  sub select_dom_form {
+ Line 2249  sub select_dom_form {
  =pod
- =item * get_library_servers($domain)
+ =item * &home_server_form_item($domain,$name,$defaultflag)
- Returns a hash which contains keys like '103l3' and values like
+ input: 4 arguments (two required, two optional) -
- 'kirk.lite.msu.edu'.  All of the keys will be for machines in the
+     $domain - domain of new user
- given $domain.
+     $name - name of form element
+     $default - Value of 'default' causes a default item to be first
+                             option, and selected by default.
+     $hide - Value of 'hide' causes hiding of the name of the server,
+                             if 1 server found, or default, if 0 found.
+ output: returns 2 items:
+ (a) form element which contains either:
+    (i) <select name="$name">
+         <option value="$hostid1">$hostid $servers{$hostid}</option>
+         <option value="$hostid2">$hostid $servers{$hostid}</option>
+        </select>
+        form item if there are multiple library servers in $domain, or
+    (ii) an <input type="hidden" name="$name" value="$hostid" /> form item
+        if there is only one library server in $domain.
- =cut
+ (b) number of library servers found.
- #-------------------------------------------
+ See loncreateuser.pm for example of use.
- sub get_library_servers {
-     my $domain = shift;
-     my %library_servers;
-     foreach (keys(%Apache::lonnet::libserv)) {
-         if ($Apache::lonnet::hostdom{$_} eq $domain) {
-             $library_servers{$_} = $Apache::lonnet::hostname{$_};
-         }
-     }
-     return %library_servers;
- }
- #-------------------------------------------
- =pod
- =item * home_server_option_list($domain)
- returns a string which contains an <option> list to be used in a
- <select> form input.  See loncreateuser.pm for an example.
  =cut
  #-------------------------------------------
- sub home_server_option_list {
+ sub home_server_form_item {
-     my $domain = shift;
+     my ($domain,$name,$default,$hide) = @_;
-     my %servers = &get_library_servers($domain);
+     my %servers = &Apache::lonnet::get_servers($domain,'library');
-     my $result = '';
+     my $result;
-     foreach (sort keys(%servers)) {
+     my $numlib = keys(%servers);
-         $result.=
+     if ($numlib > 1) {
-             '<option value="'.$_.'">'.$_.' '.$servers{$_}."</option>\n";
+         $result .= '<select name="'.$name.'" />'."\n";
+         if ($default) {
+             $result .= '<option value="default" selected="selected">'.&mt('default').
+                        '</option>'."\n";
+         }
+         foreach my $hostid (sort(keys(%servers))) {
+             $result.= '<option value="'.$hostid.'">'.
+ 	              $hostid.' '.$servers{$hostid}."</option>\n";
+         }
+         $result .= '</select>'."\n";
+     } elsif ($numlib == 1) {
+         my $hostid;
+         foreach my $item (keys(%servers)) {
+             $hostid = $item;
+         }
+         $result .= '<input type="hidden" name="'.$name.'" value="'.
+                    $hostid.'" />';
+                    if (!$hide) {
+                        $result .= $hostid.' '.$servers{$hostid};
+                    }
+                    $result .= "\n";
+     } elsif ($default) {
+         $result .= '<input type="hidden" name="'.$name.
+                    '" value="default" />';
+                    if (!$hide) {
+                        $result .= &mt('default');
+                    }
+                    $result .= "\n";
      }
-     return $result;
+     return ($result,$numlib);
  }
  =pod
  =back
  =cut
- Line 887  Outputs:
+ Line 2351  Outputs:
  =back
+ =back
  =cut
  ###############################################################
  ###############################################################
  sub decode_user_agent {
+     my ($r)=@_;
      my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
      my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
      my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
+     if (!$httpbrowser && $r) { $httpbrowser=$r->header_in('User-Agent'); }
      my $clientbrowser='unknown';
      my $clientversion='0';
      my $clientmathml='';
- Line 925  sub decode_user_agent {
+ Line 2393  sub decode_user_agent {
              $clientunicode,$clientos,);
  }
- =pod
- =back
- =cut
  ###############################################################
  ##    Authentication changing form generation subroutines    ##
  ###############################################################
- Line 947  sub decode_user_agent {
+ Line 2409  sub decode_user_agent {
  =over 4
- =item * authform_xxxxxx
+ =item * &authform_xxxxxx()
  The authform_xxxxxx subroutines provide javascript and html forms which
  handle some of the conveniences required for authentication forms.
  This is not an optimal method, but it works.
- See loncreateuser.pm for invocation and use examples.
  =over 4
  =item * authform_header
- Line 971  See loncreateuser.pm for invocation and
+ Line 2431  See loncreateuser.pm for invocation and
  =back
+ See loncreateuser.pm for invocation and use examples.
  =cut
  #-------------------------------------------
- Line 998  END
+ Line 2460  END
          $Javascript_toUpperCase = "";
      }
+     my $radioval = "'nochange'";
+     if (defined($in{'curr_authtype'})) {
+         if ($in{'curr_authtype'} ne '') {
+             $radioval = "'".$in{'curr_authtype'}."arg'";
+         }
+     }
+     my $argfield = 'null';
+     if (defined($in{'mode'})) {
+         if ($in{'mode'} eq 'modifycourse')  {
+             if (defined($in{'curr_autharg'})) {
+                 if ($in{'curr_autharg'} ne '') {
+                     $argfield = "'$in{'curr_autharg'}'";
+                 }
+             }
+         }
+     }
      $result.=<<"END";
  var current = new Object();
- current.radiovalue = 'nochange';
+ current.radiovalue = $radioval;
- current.argfield = null;
+ current.argfield = $argfield;
  function changed_radio(choice,currentform) {
      var choicearg = choice + 'arg';
- Line 1043  function changed_text(choice,currentform
+ Line 2522  function changed_text(choice,currentform
  }
  function set_auth_radio_buttons(newvalue,currentform) {
+     var numauthchoices = currentform.login.length;
+     if (typeof numauthchoices  == "undefined") {
+         return;
+     }
      var i=0;
-     while (i < currentform.login.length) {
+     while (i < numauthchoices) {
          if (currentform.login[i].value == newvalue) { break; }
          i++;
      }
-     if (i == currentform.login.length) {
+     if (i == numauthchoices) {
          return;
      }
      current.radiovalue = newvalue;
- Line 1059  END
+ Line 2542  END
      return $result;
  }
- sub authform_authorwarning{
+ sub authform_authorwarning {
      my $result='';
      $result='<i>'.
          &mt('As a general rule, only authors or co-authors should be '.
- Line 1068  sub authform_authorwarning{
+ Line 2551  sub authform_authorwarning{
      return $result;
  }
- sub authform_nochange{
+ sub authform_nochange {
      my %in = (
                formname => 'document.cu',
                kerb_def_dom => 'MSU.EDU',
                @_,
            );
-     my $result = &mt('[_1] Do not change login data',
+     my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
-                      '<input type="radio" name="login" value="nochange" '.
+     my $result;
-                      'checked="checked" onclick="'.
+     if (!$authnum) {
-             "javascript:changed_radio('nochange',$in{'formname'});".'" />');
+         $result = &mt('Under your current role you are not permitted to change login settings for this user');
+     } else {
+         $result = '<label>'.&mt('[_1] Do not change login data',
+                   '<input type="radio" name="login" value="nochange" '.
+                   'checked="checked" onclick="'.
+             "javascript:changed_radio('nochange',$in{'formname'});".'" />').
+ 	    '</label>';
+     }
      return $result;
  }
- sub authform_kerberos{
+ sub authform_kerberos {
      my %in = (
                formname => 'document.cu',
                kerb_def_dom => 'MSU.EDU',
                kerb_def_auth => 'krb4',
                @_,
                );
-     my ($check4,$check5);
+     my ($check4,$check5,$krbcheck,$krbarg,$krbver,$result,$authtype,
+         $autharg,$jscall);
+     my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
      if ($in{'kerb_def_auth'} eq 'krb5') {
-        $check5 = " checked=\"on\"";
+        $check5 = ' checked="checked"';
      } else {
-        $check4 = " checked=\"on\"";
+        $check4 = ' checked="checked"';
      }
-     my $jscall = "javascript:changed_radio('krb',$in{'formname'});";
+     $krbarg = $in{'kerb_def_dom'};
-     my $result .= &mt
+     if (defined($in{'curr_authtype'})) {
+         if ($in{'curr_authtype'} eq 'krb') {
+             $krbcheck = ' checked="checked"';
+             if (defined($in{'mode'})) {
+                 if ($in{'mode'} eq 'modifyuser') {
+                     $krbcheck = '';
+                 }
+             }
+             if (defined($in{'curr_kerb_ver'})) {
+                 if ($in{'curr_krb_ver'} eq '5') {
+                     $check5 = ' checked="checked"';
+                     $check4 = '';
+                 } else {
+                     $check4 = ' checked="checked"';
+                     $check5 = '';
+                 }
+             }
+             if (defined($in{'curr_autharg'})) {
+                 $krbarg = $in{'curr_autharg'};
+             }
+             if (!$can_assign{'krb4'} && !$can_assign{'krb5'}) {
+                 if (defined($in{'curr_autharg'})) {
+                     $result =
+     &mt('Currently Kerberos authenticated with domain [_1] Version [_2].',
+         $in{'curr_autharg'},$krbver);
+                 } else {
+                     $result =
+     &mt('Currently Kerberos authenticated, Version [_1].',$krbver);
+                 }
+                 return $result;
+             }
+         }
+     } else {
+         if ($authnum == 1) {
+             $authtype = '<input type="hidden" name="login" value="krb" />';
+         }
+     }
+     if (!$can_assign{'krb4'} && !$can_assign{'krb5'}) {
+         return;
+     } elsif ($authtype eq '') {
+         if (defined($in{'mode'})) {
+             if ($in{'mode'} eq 'modifycourse') {
+                 if ($authnum == 1) {
+                     $authtype = '<input type="radio" name="login" value="krb" />';
+                 }
+             }
+         }
+     }
+     $jscall = "javascript:changed_radio('krb',$in{'formname'});";
+     if ($authtype eq '') {
+         $authtype = '<input type="radio" name="login" value="krb" '.
+                     'onclick="'.$jscall.'" onchange="'.$jscall.'"'.
+                     $krbcheck.' />';
+     }
+     if (($can_assign{'krb4'} && $can_assign{'krb5'}) ||
+         ($can_assign{'krb4'} && !$can_assign{'krb5'} &&
+          $in{'curr_authtype'} eq 'krb5') ||
+         (!$can_assign{'krb4'} && $can_assign{'krb5'} &&
+          $in{'curr_authtype'} eq 'krb4')) {
+         $result .= &mt
+         ('[_1] Kerberos authenticated with domain [_2] '.
+          '[_3] Version 4 [_4] Version 5 [_5]',
+          '<label>'.$authtype,
+          '</label><input type="text" size="10" name="krbarg" '.
+              'value="'.$krbarg.'" '.
+              'onchange="'.$jscall.'" />',
+          '<label><input type="radio" name="krbver" value="4" '.$check4.' />',
+          '</label><label><input type="radio" name="krbver" value="5" '.$check5.' />',
+ 	 '</label>');
+     } elsif ($can_assign{'krb4'}) {
+         $result .= &mt
+         ('[_1] Kerberos authenticated with domain [_2] '.
+          '[_3] Version 4 [_4]',
+          '<label>'.$authtype,
+          '</label><input type="text" size="10" name="krbarg" '.
+              'value="'.$krbarg.'" '.
+              'onchange="'.$jscall.'" />',
+          '<label><input type="hidden" name="krbver" value="4" />',
+          '</label>');
+     } elsif ($can_assign{'krb5'}) {
+         $result .= &mt
          ('[_1] Kerberos authenticated with domain [_2] '.
-          '[_3] Version 4 [_4] Version 5',
+          '[_3] Version 5 [_4]',
-          '<input type="radio" name="login" value="krb" '.
+          '<label>'.$authtype,
-              'onclick="'.$jscall.'" onchange="'.$jscall.'" />',
+          '</label><input type="text" size="10" name="krbarg" '.
-          '<input type="text" size="10" name="krbarg" '.
+              'value="'.$krbarg.'" '.
-              'value="'.$in{'kerb_def_dom'}.'" '.
               'onchange="'.$jscall.'" />',
-          '<input type="radio" name="krbver" value="4" '.$check4.' />',
+          '<label><input type="hidden" name="krbver" value="5" />',
-          '<input type="radio" name="krbver" value="5" '.$check5.' />');
+          '</label>');
+     }
      return $result;
  }
- sub authform_internal{
+ sub authform_internal {
-     my %args = (
+     my %in = (
                  formname => 'document.cu',
                  kerb_def_dom => 'MSU.EDU',
                  @_,
                  );
-     my $jscall = "javascript:changed_radio('int',$args{'formname'});";
+     my ($intcheck,$intarg,$result,$authtype,$autharg,$jscall);
-     my $result.=&mt
+     my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
+     if (defined($in{'curr_authtype'})) {
+         if ($in{'curr_authtype'} eq 'int') {
+             if ($can_assign{'int'}) {
+                 $intcheck = 'checked="checked" ';
+                 if (defined($in{'mode'})) {
+                     if ($in{'mode'} eq 'modifyuser') {
+                         $intcheck = '';
+                     }
+                 }
+                 if (defined($in{'curr_autharg'})) {
+                     $intarg = $in{'curr_autharg'};
+                 }
+             } else {
+                 $result = &mt('Currently internally authenticated.');
+                 return $result;
+             }
+         }
+     } else {
+         if ($authnum == 1) {
+             $authtype = '<input type="hidden" name="login" value="int" />';
+         }
+     }
+     if (!$can_assign{'int'}) {
+         return;
+     } elsif ($authtype eq '') {
+         if (defined($in{'mode'})) {
+             if ($in{'mode'} eq 'modifycourse') {
+                 if ($authnum == 1) {
+                     $authtype = '<input type="radio" name="login" value="int" />';
+                 }
+             }
+         }
+     }
+     $jscall = "javascript:changed_radio('int',$in{'formname'});";
+     if ($authtype eq '') {
+         $authtype = '<input type="radio" name="login" value="int" '.$intcheck.
+                     ' onchange="'.$jscall.'" onclick="'.$jscall.'" />';
+     }
+     $autharg = '<input type="password" size="10" name="intarg" value="'.
+                $intarg.'" onchange="'.$jscall.'" />';
+     $result = &mt
          ('[_1] Internally authenticated (with initial password [_2])',
-          '<input type="radio" name="login" value="int" '.
+          '<label>'.$authtype,'</label>'.$autharg);
-              'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
+     $result.="<label><input type=\"checkbox\" name=\"visible\" onclick='if (this.checked) { this.form.intarg.type=\"text\" } else { this.form.intarg.type=\"password\" }' />".&mt('Visible input').'</label>';
-          '<input type="text" size="10" name="intarg" value="" '.
-              'onchange="'.$jscall.'" />');
      return $result;
  }
- sub authform_local{
+ sub authform_local {
      my %in = (
                formname => 'document.cu',
                kerb_def_dom => 'MSU.EDU',
                @_,
                );
-     my $jscall = "javascript:changed_radio('loc',$in{'formname'});";
+     my ($loccheck,$locarg,$result,$authtype,$autharg,$jscall);
-     my $result.=&mt('[_1] Local Authentication with arguement [_2]',
+     my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
-                     '<input type="radio" name="login" value="loc" '.
+     if (defined($in{'curr_authtype'})) {
-                         'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
+         if ($in{'curr_authtype'} eq 'loc') {
-                     '<input type="text" size="10" name="locarg" value="" '.
+             if ($can_assign{'loc'}) {
-                         'onchange="'.$jscall.'" />');
+                 $loccheck = 'checked="checked" ';
+                 if (defined($in{'mode'})) {
+                     if ($in{'mode'} eq 'modifyuser') {
+                         $loccheck = '';
+                     }
+                 }
+                 if (defined($in{'curr_autharg'})) {
+                     $locarg = $in{'curr_autharg'};
+                 }
+             } else {
+                 $result = &mt('Currently using local (institutional) authentication.');
+                 return $result;
+             }
+         }
+     } else {
+         if ($authnum == 1) {
+             $authtype = '<input type="hidden" name="login" value="loc" />';
+         }
+     }
+     if (!$can_assign{'loc'}) {
+         return;
+     } elsif ($authtype eq '') {
+         if (defined($in{'mode'})) {
+             if ($in{'mode'} eq 'modifycourse') {
+                 if ($authnum == 1) {
+                     $authtype = '<input type="radio" name="login" value="loc" />';
+                 }
+             }
+         }
+     }
+     $jscall = "javascript:changed_radio('loc',$in{'formname'});";
+     if ($authtype eq '') {
+         $authtype = '<input type="radio" name="login" value="loc" '.
+                     $loccheck.' onchange="'.$jscall.'" onclick="'.
+                     $jscall.'" />';
+     }
+     $autharg = '<input type="text" size="10" name="locarg" value="'.
+                $locarg.'" onchange="'.$jscall.'" />';
+     $result = &mt('[_1] Local Authentication with argument [_2]',
+                   '<label>'.$authtype,'</label>'.$autharg);
      return $result;
  }
- sub authform_filesystem{
+ sub authform_filesystem {
      my %in = (
                formname => 'document.cu',
                kerb_def_dom => 'MSU.EDU',
                @_,
                );
-     my $jscall = "javascript:changed_radio('fsys',$in{'formname'});";
+     my ($fsyscheck,$result,$authtype,$autharg,$jscall);
-     my $result.= &mt
+     my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
+     if (defined($in{'curr_authtype'})) {
+         if ($in{'curr_authtype'} eq 'fsys') {
+             if ($can_assign{'fsys'}) {
+                 $fsyscheck = 'checked="checked" ';
+                 if (defined($in{'mode'})) {
+                     if ($in{'mode'} eq 'modifyuser') {
+                         $fsyscheck = '';
+                     }
+                 }
+             } else {
+                 $result = &mt('Currently Filesystem Authenticated.');
+                 return $result;
+             }
+         }
+     } else {
+         if ($authnum == 1) {
+             $authtype = '<input type="hidden" name="login" value="fsys" />';
+         }
+     }
+     if (!$can_assign{'fsys'}) {
+         return;
+     } elsif ($authtype eq '') {
+         if (defined($in{'mode'})) {
+             if ($in{'mode'} eq 'modifycourse') {
+                 if ($authnum == 1) {
+                     $authtype = '<input type="radio" name="login" value="fsys" />';
+                 }
+             }
+         }
+     }
+     $jscall = "javascript:changed_radio('fsys',$in{'formname'});";
+     if ($authtype eq '') {
+         $authtype = '<input type="radio" name="login" value="fsys" '.
+                     $fsyscheck.' onchange="'.$jscall.'" onclick="'.
+                     $jscall.'" />';
+     }
+     $autharg = '<input type="text" size="10" name="fsysarg" value=""'.
+                ' onchange="'.$jscall.'" />';
+     $result = &mt
          ('[_1] Filesystem Authenticated (with initial password [_2])',
-          '<input type="radio" name="login" value="fsys" '.
+          '<label><input type="radio" name="login" value="fsys" '.
-          'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
+          $fsyscheck.'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
-          '<input type="text" size="10" name="fsysarg" value="" '.
+          '</label><input type="password" size="10" name="fsysarg" value="" '.
                    'onchange="'.$jscall.'" />');
      return $result;
  }
- =pod
+ sub get_assignable_auth {
+     my ($dom) = @_;
- =back
+     if ($dom eq '') {
+         $dom = $env{'request.role.domain'};
- =cut
+     }
+     my %can_assign = (
- ###############################################################
+                           krb4 => 1,
- ##    Get Authentication Defaults for Domain                 ##
+                           krb5 => 1,
- ###############################################################
+                           int  => 1,
+                           loc  => 1,
- =pod
+                      );
+     my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$dom);
- =head1 Domains and Authentication
+     if (ref($domconfig{'usercreation'}) eq 'HASH') {
+         if (ref($domconfig{'usercreation'}{'authtypes'}) eq 'HASH') {
- Returns default authentication type and an associated argument as
+             my $authhash = $domconfig{'usercreation'}{'authtypes'};
- listed in file 'domain.tab'.
+             my $context;
+             if ($env{'request.role'} =~ /^au/) {
- =over 4
+                 $context = 'author';
+             } elsif ($env{'request.role'} =~ /^dc/) {
- =item * get_auth_defaults
+                 $context = 'domain';
+             } elsif ($env{'request.course.id'}) {
- get_auth_defaults($target_domain) returns the default authentication
+                 $context = 'course';
- type and an associated argument (initial password or a kerberos domain).
+             }
- These values are stored in lonTabs/domain.tab
+             if ($context) {
+                 if (ref($authhash->{$context}) eq 'HASH') {
- ($def_auth, $def_arg) = &get_auth_defaults($target_domain);
+                    %can_assign = %{$authhash->{$context}};
+                 }
- If target_domain is not found in domain.tab, returns nothing ('').
+             }
+         }
- =cut
+     }
+     my $authnum = 0;
- #-------------------------------------------
+     foreach my $key (keys(%can_assign)) {
- sub get_auth_defaults {
+         if ($can_assign{$key}) {
-     my $domain=shift;
+             $authnum ++;
-     return ($Apache::lonnet::domain_auth_def{$domain},$Apache::lonnet::domain_auth_arg_def{$domain});
+         }
+     }
+     if ($can_assign{'krb4'} && $can_assign{'krb5'}) {
+         $authnum --;
+     }
+     return ($authnum,%can_assign);
  }
- ###############################################################
- ##   End Get Authentication Defaults for Domain              ##
- ###############################################################
  ###############################################################
  ##    Get Kerberos Defaults for Domain                 ##
- Line 1207  sub get_auth_defaults {
+ Line 2898  sub get_auth_defaults {
  =pod
- =item * get_kerberos_defaults
+ =item * &get_kerberos_defaults()
  get_kerberos_defaults($target_domain) returns the default kerberos
- version and domain. If not found in domain.tabs, it defaults to
+ version and domain. If not found, it defaults to version 4 and the
- version 4 and the domain of the server.
+ domain of the server.
+ =over 4
  ($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain);
+ =back
+ =back
  =cut
  #-------------------------------------------
  sub get_kerberos_defaults {
      my $domain=shift;
-     my ($krbdef,$krbdefdom) =
+     my ($krbdef,$krbdefdom);
-         &Apache::loncommon::get_auth_defaults($domain);
+     my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
-     unless ($krbdef =~/^krb/ && $krbdefdom) {
+     if (($domdefaults{'auth_def'} =~/^krb(4|5)$/) && ($domdefaults{'auth_arg_def'} ne '')) {
+         $krbdef = $domdefaults{'auth_def'};
+         $krbdefdom = $domdefaults{'auth_arg_def'};
+     } else {
          $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
          my $krbdefdom=$1;
          $krbdefdom=~tr/a-z/A-Z/;
- Line 1231  sub get_kerberos_defaults {
+ Line 2931  sub get_kerberos_defaults {
      return ($krbdef,$krbdefdom);
  }
- =pod
- =back
- =cut
  ###############################################################
  ##                Thesaurus Functions                        ##
- Line 1247  sub get_kerberos_defaults {
+ Line 2942  sub get_kerberos_defaults {
  =over 4
- =item * initialize_keywords
+ =item * &initialize_keywords()
  Initializes the package variable %Keywords if it is empty.  Uses the
  package variable $thesaurus_db_file.
- Line 1282  sub initialize_keywords {
+ Line 2977  sub initialize_keywords {
      }
      untie %thesaurus_db;
      # Remove special values from %Keywords.
-     foreach ('total.count','average.count') {
+     foreach my $value ('total.count','average.count') {
-         delete($Keywords{$_}) if (exists($Keywords{$_}));
+         delete($Keywords{$value}) if (exists($Keywords{$value}));
-     }
+   }
      return 1;
  }
- Line 1292  sub initialize_keywords {
+ Line 2987  sub initialize_keywords {
  =pod
- =item * keyword($word)
+ =item * &keyword($word)
  Returns true if $word is a keyword.  A keyword is a word that appears more
  than the average number of times in the thesaurus database.  Calls
- Line 1313  sub keyword {
+ Line 3008  sub keyword {
  =pod
- =item * get_related_words
+ =item * &get_related_words()
- Look up a word in the thesaurus.  Takes a scalar arguement and returns
+ Look up a word in the thesaurus.  Takes a scalar argument and returns
  an array of words.  If the keyword is not in the thesaurus, an empty array
  will be returned.  The order of the words returned is determined by the
  database which holds them.
  Uses global $thesaurus_db_file.
  =cut
  ###############################################################
- Line 1338  sub get_related_words {
+ Line 3034  sub get_related_words {
          return ();
      }
      my @Words=();
+     my $count=0;
      if (exists($thesaurus_db{$keyword})) {
-         $_ = $thesaurus_db{$keyword};
+ 	# The first element is the number of times
-         (undef,@Words) = split/:/;  # The first element is the number of times
+ 	# the word appears.  We do not need it now.
-                                     # the word appears.  We do not need it now.
+ 	my (undef,@RelatedWords) = (split(/:/,$thesaurus_db{$keyword}));
-         for (my $i=0;$i<=$#Words;$i++) {
+ 	my (undef,$mostfrequentcount)=split(/\,/,$RelatedWords[0]);
-             ($Words[$i],undef)= split/\,/,$Words[$i];
+ 	my $threshold=$mostfrequentcount/10;
+         foreach my $possibleword (@RelatedWords) {
+             my ($word,$wordcount)=split(/\,/,$possibleword);
+             if ($wordcount>$threshold) {
+ 		push(@Words,$word);
+                 $count++;
+                 if ($count>10) { last; }
+ 	    }
          }
      }
      untie %thesaurus_db;
      return @Words;
  }
+ ###############################################################
+ #
+ #  Spell checking
+ #
+ =pod
+ =head1 Spell checking
+ =over 4
+ =item * &check_spelling($wordlist $language)
+ Takes a string containing words and feeds it to an external
+ spellcheck program via a pipeline. Returns a string containing
+ them mis-spelled words.
+ Parameters:
+ =over 4
+ =item - $wordlist
+ String that will be fed into the spellcheck program.
+ =item - $language
+ Language string that specifies the language for which the spell
+ check will be performed.
+ =back
+ =back
+ Note: This sub assumes that aspell is installed.
+ =cut
  =pod
- Line 1356  sub get_related_words {
+ Line 3099  sub get_related_words {
  =cut
+ sub check_spelling {
+     my ($wordlist, $language) = @_;
+     my @misspellings;
+     # Generate the speller and set the langauge.
+     # if explicitly selected:
+     my $speller = Text::Aspell->new;
+     if ($language) {
+ 	$speller->set_option('lang', $language);
+     }
+     # Turn the word list into an array of words by splittingon whitespace
+     my @words = split(/\s+/, $wordlist);
+     foreach my $word (@words) {
+ 	if(! $speller->check($word)) {
+ 	    push(@misspellings, $word);
+ 	}
+     }
+     return join(' ', @misspellings);
+ }
  # -------------------------------------------------------------- Plaintext name
  =pod
- Line 1363  sub get_related_words {
+ Line 3131  sub get_related_words {
  =over 4
- =item * plainname($uname,$udom)
+ =item * &plainname($uname,$udom,$first)
  Takes a users logon name and returns it as a string in
  "first middle last generation" form
+ if $first is set to 'lastname' then it returns it as
+ 'lastname generation, firstname middlename' if their is a lastname
  =cut
  ###############################################################
  sub plainname {
-     my ($uname,$udom)=@_;
+     my ($uname,$udom,$first)=@_;
-     my %names=&Apache::lonnet::get('environment',
+     return if (!defined($uname) || !defined($udom));
-                     ['firstname','middlename','lastname','generation'],
+     my %names=&getnames($uname,$udom);
- 					 $udom,$uname);
+     my $name=&Apache::lonnet::format_name($names{'firstname'},
-     my $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
+ 					  $names{'middlename'},
- 	$names{'lastname'}.' '.$names{'generation'};
+ 					  $names{'lastname'},
+ 					  $names{'generation'},$first);
+     $name=~s/^\s+//;
      $name=~s/\s+$//;
      $name=~s/\s+/ /g;
+     if ($name !~ /\S/) { $name=$uname.':'.$udom; }
      return $name;
  }
  # -------------------------------------------------------------------- Nickname
  =pod
- =item * nickname($uname,$udom)
+ =item * &nickname($uname,$udom)
  Gets a users name and returns it as a string as
- Line 1402  if the user does not
+ Line 3176  if the user does not
  sub nickname {
      my ($uname,$udom)=@_;
-     my %names=&Apache::lonnet::get('environment',
+     return if (!defined($uname) || !defined($udom));
-   ['nickname','firstname','middlename','lastname','generation'],$udom,$uname);
+     my %names=&getnames($uname,$udom);
      my $name=$names{'nickname'};
      if ($name) {
         $name='&quot;'.$name.'&quot;';
- Line 1416  sub nickname {
+ Line 3190  sub nickname {
      return $name;
  }
+ sub getnames {
+     my ($uname,$udom)=@_;
+     return if (!defined($uname) || !defined($udom));
+     if ($udom eq 'public' && $uname eq 'public') {
+ 	return ('lastname' => &mt('Public'));
+     }
+     my $id=$uname.':'.$udom;
+     my ($names,$cached)=&Apache::lonnet::is_cached_new('namescache',$id);
+     if ($cached) {
+ 	return %{$names};
+     } else {
+ 	my %loadnames=&Apache::lonnet::get('environment',
+                     ['firstname','middlename','lastname','generation','nickname'],
+ 					 $udom,$uname);
+ 	&Apache::lonnet::do_cache_new('namescache',$id,\%loadnames);
+ 	return %loadnames;
+     }
+ }
+ # -------------------------------------------------------------------- getemails
+ =pod
+ =item * &getemails($uname,$udom)
+ Gets a user's email information and returns it as a hash with keys:
+ notification, critnotification, permanentemail
+ For notification and critnotification, values are comma-separated lists
+ of e-mail addresses; for permanentemail, value is a single e-mail address.
+ =cut
+ sub getemails {
+     my ($uname,$udom)=@_;
+     if ($udom eq 'public' && $uname eq 'public') {
+ 	return;
+     }
+     if (!$udom) { $udom=$env{'user.domain'}; }
+     if (!$uname) { $uname=$env{'user.name'}; }
+     my $id=$uname.':'.$udom;
+     my ($names,$cached)=&Apache::lonnet::is_cached_new('emailscache',$id);
+     if ($cached) {
+ 	return %{$names};
+     } else {
+ 	my %loadnames=&Apache::lonnet::get('environment',
+                     			   ['notification','critnotification',
+ 					    'permanentemail'],
+ 					   $udom,$uname);
+ 	&Apache::lonnet::do_cache_new('emailscache',$id,\%loadnames);
+ 	return %loadnames;
+     }
+ }
+ sub flush_email_cache {
+     my ($uname,$udom)=@_;
+     if (!$udom)  { $udom =$env{'user.domain'}; }
+     if (!$uname) { $uname=$env{'user.name'};   }
+     return if ($udom eq 'public' && $uname eq 'public');
+     my $id=$uname.':'.$udom;
+     &Apache::lonnet::devalidate_cache_new('emailscache',$id);
+ }
+ # -------------------------------------------------------------------- getlangs
+ =pod
+ =item * &getlangs($uname,$udom)
+ Gets a user's language preference and returns it as a hash with key:
+ language.
+ =cut
+ sub getlangs {
+     my ($uname,$udom) = @_;
+     if (!$udom)  { $udom =$env{'user.domain'}; }
+     if (!$uname) { $uname=$env{'user.name'};   }
+     my $id=$uname.':'.$udom;
+     my ($langs,$cached)=&Apache::lonnet::is_cached_new('userlangs',$id);
+     if ($cached) {
+         return %{$langs};
+     } else {
+         my %loadlangs=&Apache::lonnet::get('environment',['languages'],
+                                            $udom,$uname);
+         &Apache::lonnet::do_cache_new('userlangs',$id,\%loadlangs);
+         return %loadlangs;
+     }
+ }
+ sub flush_langs_cache {
+     my ($uname,$udom)=@_;
+     if (!$udom)  { $udom =$env{'user.domain'}; }
+     if (!$uname) { $uname=$env{'user.name'};   }
+     return if ($udom eq 'public' && $uname eq 'public');
+     my $id=$uname.':'.$udom;
+     &Apache::lonnet::devalidate_cache_new('userlangs',$id);
+ }
  # ------------------------------------------------------------------ Screenname
  =pod
- =item * screenname($uname,$udom)
+ =item * &screenname($uname,$udom)
  Gets a users screenname and returns it as a string
- Line 1429  Gets a users screenname and returns it a
+ Line 3304  Gets a users screenname and returns it a
  sub screenname {
      my ($uname,$udom)=@_;
-     my %names=
+     if ($uname eq $env{'user.name'} &&
-  &Apache::lonnet::get('environment',['screenname'],$udom,$uname);
+ 	$udom eq $env{'user.domain'}) {return $env{'environment.screenname'};}
+     my %names=&Apache::lonnet::get('environment',['screenname'],$udom,$uname);
      return $names{'screenname'};
  }
+ # ------------------------------------------------------------- Confirm Wrapper
+ =pod
+ =item confirmwrapper
+ Wrap messages about completion of operation in box
+ =cut
+ sub confirmwrapper {
+     my ($message)=@_;
+     if ($message) {
+         return "\n".'<div class="LC_confirm_box">'."\n"
+                .$message."\n"
+                .'</div>'."\n";
+     } else {
+         return $message;
+     }
+ }
  # ------------------------------------------------------------- Message Wrapper
  sub messagewrapper {
-     my ($link,$un,$do)=@_;
+     my ($link,$username,$domain,$subject,$text)=@_;
      return
- "<a href='/adm/email?compose=individual&recname=$un&recdom=$do'>$link</a>";
+         '<a href="/adm/email?compose=individual&amp;'.
+         'recname='.$username.'&amp;recdom='.$domain.
+ 	'&amp;subject='.&escape($subject).'&amp;text='.&escape($text).'" '.
+         'title="'.&mt('Send message').'">'.$link.'</a>';
  }
  # --------------------------------------------------------------- Notes Wrapper
  sub noteswrapper {
      my ($link,$un,$do)=@_;
      return
- "<a href='/adm/email?recordftf=retrieve&recname=$un&recdom=$do'>$link</a>";
+ "<a href='/adm/email?recordftf=retrieve&amp;recname=$un&amp;recdom=$do'>$link</a>";
  }
  # ------------------------------------------------------------- Aboutme Wrapper
  sub aboutmewrapper {
-     my ($link,$username,$domain)=@_;
+     my ($link,$username,$domain,$target,$class)=@_;
-     return "<a href='/adm/$domain/$username/aboutme'>$link</a>";
+     if (!defined($username)  && !defined($domain)) {
+         return;
+     }
+     return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
+ 	($target?' target="'.$target.'"':'').($class?' class="'.$class.'"':'').' title="'.&mt("View this user's personal information page").'">'.$link.'</a>';
  }
  # ------------------------------------------------------------ Syllabus Wrapper
  sub syllabuswrapper {
-     my ($linktext,$coursedir,$domain,$fontcolor)=@_;
+     my ($linktext,$coursedir,$domain)=@_;
-     if ($fontcolor) {
+     return qq{<a href="/public/$domain/$coursedir/syllabus">$linktext</a>};
-         $linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>';
+ }
+ # -----------------------------------------------------------------------------
+ sub track_student_link {
+     my ($linktext,$sname,$sdom,$target,$start,$only_body) = @_;
+     my $link ="/adm/trackstudent?";
+     my $title = 'View recent activity';
+     if (defined($sname) && $sname !~ /^\s*$/ &&
+         defined($sdom)  && $sdom  !~ /^\s*$/) {
+         $link .= "selected_student=$sname:$sdom";
+         $title .= ' of this student';
+     }
+     if (defined($target) && $target !~ /^\s*$/) {
+         $target = qq{target="$target"};
+     } else {
+         $target = '';
+     }
+     if ($start) { $link.='&amp;start='.$start; }
+     if ($only_body) { $link .= '&amp;only_body=1'; }
+     $title = &mt($title);
+     $linktext = &mt($linktext);
+     return qq{<a href="$link" title="$title" $target>$linktext</a>}.
+ 	&help_open_topic('View_recent_activity');
+ }
+ sub slot_reservations_link {
+     my ($linktext,$sname,$sdom,$target) = @_;
+     my $link ="/adm/slotrequest?command=showresv&amp;origin=aboutme";
+     my $title = 'View slot reservation history';
+     if (defined($sname) && $sname !~ /^\s*$/ &&
+         defined($sdom)  && $sdom  !~ /^\s*$/) {
+         $link .= "&amp;uname=$sname&amp;udom=$sdom";
+         $title .= ' of this student';
+     }
+     if (defined($target) && $target !~ /^\s*$/) {
+         $target = qq{target="$target"};
+     } else {
+         $target = '';
+     }
+     $title = &mt($title);
+     $linktext = &mt($linktext);
+     return qq{<a href="$link" title="$title" $target>$linktext</a>};
+ # FIXME uncomment when help item created: &help_open_topic('Slot_Reservation_History');
+ }
+ # ===================================================== Display a student photo
+ sub student_image_tag {
+     my ($domain,$user)=@_;
+     my $imgsrc=&Apache::lonnet::studentphoto($domain,$user,'jpg');
+     if (($imgsrc) && ($imgsrc ne '/adm/lonKaputt/lonlogo_broken.gif')) {
+ 	return '<img src="'.$imgsrc.'" align="right" />';
+     } else {
+ 	return '';
      }
-     return "<a href='/public/$domain/$coursedir/syllabus'>$linktext</a>";
  }
  =pod
- Line 1474  sub syllabuswrapper {
+ Line 3434  sub syllabuswrapper {
  =over 4
- =item * languageids()
+ =item * &languageids()
  returns list of all language ids
- Line 1486  sub languageids {
+ Line 3446  sub languageids {
  =pod
- =item * languagedescription()
+ =item * &languagedescription()
  returns description of a specified language id
- Line 1499  sub languagedescription {
+ Line 3459  sub languagedescription {
  	    ($supported_language{$code}?' ('.&mt('interface available').')':'');
  }
+ =pod
+ =item * &plainlanguagedescription
+ Returns both the plain language description (e.g. 'Creoles and Pidgins, English-based (Other)')
+ and the language character encoding (e.g. ISO) separated by a ' - ' string.
+ =cut
  sub plainlanguagedescription {
      my $code=shift;
      return $language{$code};
  }
+ =pod
+ =item * &supportedlanguagecode
+ Returns the supported language code (e.g. sptutf maps to pt) given a language
+ code.
+ =cut
  sub supportedlanguagecode {
      my $code=shift;
      return $supported_language{$code};
- Line 1511  sub supportedlanguagecode {
+ Line 3489  sub supportedlanguagecode {
  =pod
- =item * copyrightids()
+ =item * &latexlanguage()
+ Given a language key code returns the correspondnig language to use
+ to select the correct hyphenation on LaTeX printouts.  This is undef if there
+ is no supported hyphenation for the language code.
+ =cut
+ sub latexlanguage {
+     my $code = shift;
+     return $latex_language{$code};
+ }
+ =pod
+ =item * &latexhyphenation()
+ Same as above but what's supplied is the language as it might be stored
+ in the metadata.
+ =cut
+ sub latexhyphenation {
+     my $key = shift;
+     return $latex_language_bykey{$key};
+ }
+ =pod
+ =item * &copyrightids()
  returns list of all copyrights
- Line 1523  sub copyrightids {
+ Line 3530  sub copyrightids {
  =pod
- =item * copyrightdescription()
+ =item * &copyrightdescription()
  returns description of a specified copyright id
  =cut
  sub copyrightdescription {
-     return $cprtag{shift(@_)};
+     return &mt($cprtag{shift(@_)});
+ }
+ =pod
+ =item * &source_copyrightids()
+ returns list of all source copyrights
+ =cut
+ sub source_copyrightids {
+     return sort(keys(%scprtag));
  }
  =pod
- =item * filecategories()
+ =item * &source_copyrightdescription()
+ returns description of a specified source copyright id
+ =cut
+ sub source_copyrightdescription {
+     return &mt($scprtag{shift(@_)});
+ }
+ =pod
+ =item * &filecategories()
  returns list of all file categories
- Line 1547  sub filecategories {
+ Line 3578  sub filecategories {
  =pod
- =item * filecategorytypes()
+ =item * &filecategorytypes()
  returns list of file types belonging to a given file
  category
- Line 1555  category
+ Line 3586  category
  =cut
  sub filecategorytypes {
-     return @{$category_extensions{lc($_[0])}};
+     my ($cat) = @_;
+     return @{$category_extensions{lc($cat)}};
  }
  =pod
- =item * fileembstyle()
+ =item * &fileembstyle()
  returns embedding style for a specified file type
- Line 1570  sub fileembstyle {
+ Line 3602  sub fileembstyle {
      return $fe{lc(shift(@_))};
  }
+ sub filemimetype {
+     return $fm{lc(shift(@_))};
+ }
+ sub filecategoryselect {
+     my ($name,$value)=@_;
+     return &select_form($value,$name,
+                         {'' => &mt('Any category'), map { $_,$_ } sort(keys(%category_extensions))});
+ }
  =pod
- =item * filedescription()
+ =item * &filedescription()
  returns description for a specified file type
  =cut
  sub filedescription {
-     return $fd{lc(shift(@_))};
+     my $file_description = $fd{lc(shift())};
+     $file_description =~ s:([\[\]]):~$1:g;
+     return &mt($file_description);
  }
  =pod
- =item * filedescriptionex()
+ =item * &filedescriptionex()
  returns description for a specified file type with
  extra formatting
- Line 1593  extra formatting
+ Line 3638  extra formatting
  sub filedescriptionex {
      my $ex=shift;
-     return '.'.$ex.' '.$fd{lc($ex)};
+     my $file_description = $fd{lc($ex)};
+     $file_description =~ s:([\[\]]):~$1:g;
+     return '.'.$ex.' '.&mt($file_description);
  }
  # End of .tab access
- Line 1614  sub fileextensions {
+ Line 3661  sub fileextensions {
  sub display_languages {
      my %languages=();
-     foreach (&preferred_languages()) {
+     foreach my $lang (&Apache::lonlocal::preferred_languages()) {
- 	$languages{$_}=1;
+ 	$languages{$lang}=1;
      }
      &get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);
-     if ($ENV{'form.displaylanguage'}) {
+     if ($env{'form.displaylanguage'}) {
- 	foreach (split(/\s*(\,|\;|\:)\s*/,$ENV{'form.displaylanguage'})) {
+ 	foreach my $lang (split(/\s*(\,|\;|\:)\s*/,$env{'form.displaylanguage'})) {
- 	    $languages{$_}=1;
+ 	    $languages{$lang}=1;
          }
      }
      return %languages;
  }
- sub preferred_languages {
+ sub languages {
-     my @languages=();
+     my ($possible_langs) = @_;
-     if ($ENV{'environment.languages'}) {
+     my @preferred_langs = &Apache::lonlocal::preferred_languages();
- 	@languages=split(/\s*(\,|\;|\:)\s*/,$ENV{'environment.languages'});
+     if (!ref($possible_langs)) {
-     }
+ 	if( wantarray ) {
-     if ($ENV{'course.'.$ENV{'request.course.id'}.'.languages'}) {
+ 	    return @preferred_langs;
- 	@languages=(@languages,split(/\s*(\,|\;|\:)\s*/,
+ 	} else {
- 	         $ENV{'course.'.$ENV{'request.course.id'}.'.languages'}));
+ 	    return $preferred_langs[0];
-     }
+ 	}
-     my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0];
+     }
-     if ($browser) {
+     my %possibilities = map { $_ => 1 } (@$possible_langs);
- 	@languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$browser));
+     my @preferred_possibilities;
-     }
+     foreach my $preferred_lang (@preferred_langs) {
-     if ($Apache::lonnet::domain_lang_def{$ENV{'user.domain'}}) {
+ 	if (exists($possibilities{$preferred_lang})) {
- 	@languages=(@languages,
+ 	    push(@preferred_possibilities, $preferred_lang);
- 		$Apache::lonnet::domain_lang_def{$ENV{'user.domain'}});
-     }
-     if ($Apache::lonnet::domain_lang_def{$ENV{'request.role.domain'}}) {
- 	@languages=(@languages,
- 		$Apache::lonnet::domain_lang_def{$ENV{'request.role.domain'}});
-     }
-     if ($Apache::lonnet::domain_lang_def{
- 	                          $Apache::lonnet::perlvar{'lonDefDomain'}}) {
- 	@languages=(@languages,
- 		$Apache::lonnet::domain_lang_def{
-                                   $Apache::lonnet::perlvar{'lonDefDomain'}});
-     }
- # turn "en-ca" into "en-ca,en"
-     my @genlanguages;
-     foreach (@languages) {
- 	unless ($_=~/\w/) { next; }
- 	push (@genlanguages,$_);
- 	if ($_=~/(\-|\_)/) {
- 	    push (@genlanguages,(split(/(\-|\_)/,$_))[0]);
  	}
      }
-     return @genlanguages;
+     if( wantarray ) {
+ 	return @preferred_possibilities;
+     }
+     return $preferred_possibilities[0];
  }
+ sub user_lang {
+     my ($touname,$toudom,$fromcid) = @_;
+     my @userlangs;
+     if (($fromcid ne '') && ($env{'course.'.$fromcid.'.languages'} ne '')) {
+         @userlangs=(@userlangs,split(/\s*(\,|\;|\:)\s*/,
+                     $env{'course.'.$fromcid.'.languages'}));
+     } else {
+         my %langhash = &getlangs($touname,$toudom);
+         if ($langhash{'languages'} ne '') {
+             @userlangs = split(/\s*(\,|\;|\:)\s*/,$langhash{'languages'});
+         } else {
+             my %domdefs = &Apache::lonnet::get_domain_defaults($toudom);
+             if ($domdefs{'lang_def'} ne '') {
+                 @userlangs = ($domdefs{'lang_def'});
+             }
+         }
+     }
+     my @languages=&Apache::lonlocal::get_genlanguages(@userlangs);
+     my $user_lh = Apache::localize->get_handle(@languages);
+     return $user_lh;
+ }
  ###############################################################
  ##               Student Answer Attempts                     ##
  ###############################################################
- Line 1675  sub preferred_languages {
+ Line 3729  sub preferred_languages {
  =over 4
- =item * get_previous_attempt($symb, $username, $domain, $course,
+ =item * &get_previous_attempt($symb, $username, $domain, $course,
      $getattempt, $regexp, $gradesub)
  Return string with previous attempt on problem. Arguments:
- Line 1715  sub get_previous_attempt {
+ Line 3769  sub get_previous_attempt {
        my %lasthash=();
        my $version;
        for ($version=1;$version<=$returnhash{'version'};$version++) {
-         foreach (sort(split(/\:/,$returnhash{$version.':keys'}))) {
+         foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
- 	  $lasthash{$_}=$returnhash{$version.':'.$_};
+ 	  $lasthash{$key}=$returnhash{$version.':'.$key};
          }
        }
-       $prevattempts='<table border="0" width="100%"><tr><td bgcolor="#777777">';
+       $prevattempts=&start_data_table().&start_data_table_header_row();
-       $prevattempts.='<table border="0" width="100%"><tr bgcolor="#e6ffff"><td>History</td>';
+       $prevattempts.='<th>'.&mt('History').'</th>';
-       foreach (sort(keys %lasthash)) {
+       my (%typeparts,%lasthidden);
- 	my ($ign,@parts) = split(/\./,$_);
+       my $showsurv=&Apache::lonnet::allowed('vas',$env{'request.course.id'});
+       foreach my $key (sort(keys(%lasthash))) {
+ 	my ($ign,@parts) = split(/\./,$key);
  	if ($#parts > 0) {
  	  my $data=$parts[-1];
+           next if ($data eq 'foilorder');
  	  pop(@parts);
- 	  $prevattempts.='<td>Part '.join('.',@parts).'<br />'.$data.'&nbsp;</td>';
+           $prevattempts.='<th>'.&mt('Part ').join('.',@parts).'<br />'.$data.'&nbsp;</th>';
+           if ($data eq 'type') {
+               unless ($showsurv) {
+                   my $id = join(',',@parts);
+                   $typeparts{$ign.'.'.$id} = $lasthash{$key};
+                   if (($lasthash{$key} eq 'anonsurvey') || ($lasthash{$key} eq 'anonsurveycred')) {
+                       $lasthidden{$ign.'.'.$id} = 1;
+                   }
+               }
+           }
  	} else {
  	  if ($#parts == 0) {
  	    $prevattempts.='<th>'.$parts[0].'</th>';
- Line 1735  sub get_previous_attempt {
+ Line 3801  sub get_previous_attempt {
  	  }
  	}
        }
+       $prevattempts.=&end_data_table_header_row();
        if ($getattempt eq '') {
  	for ($version=1;$version<=$returnhash{'version'};$version++) {
- 	  $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Transaction '.$version.'</td>';
+             my @hidden;
- 	    foreach (sort(keys %lasthash)) {
+             if (%typeparts) {
- 	       my $value;
+                 foreach my $id (keys(%typeparts)) {
- 	       if ($_ =~ /timestamp/) {
+                     if (($returnhash{$version.':'.$id.'.type'} eq 'anonsurvey') || ($returnhash{$version.':'.$id.'.type'} eq 'anonsurveycred')) {
- 		  $value=scalar(localtime($returnhash{$version.':'.$_}));
+                         push(@hidden,$id);
- 	       } else {
+                     }
- 		  $value=$returnhash{$version.':'.$_};
+                 }
- 	       }
+             }
- 	       $prevattempts.='<td>'.&Apache::lonnet::unescape($value).'&nbsp;</td>';
+             $prevattempts.=&start_data_table_row().
- 	    }
+                            '<td>'.&mt('Transaction [_1]',$version).'</td>';
+             if (@hidden) {
+                 foreach my $key (sort(keys(%lasthash))) {
+                     next if ($key =~ /\.foilorder$/);
+                     my $hide;
+                     foreach my $id (@hidden) {
+                         if ($key =~ /^\Q$id\E/) {
+                             $hide = 1;
+                             last;
+                         }
+                     }
+                     if ($hide) {
+                         my ($id,$data) = ($key =~ /^(.+)\.([^.]+)$/);
+                         if (($data eq 'award') || ($data eq 'awarddetail')) {
+                             my $value = &format_previous_attempt_value($key,
+                                              $returnhash{$version.':'.$key});
+                             $prevattempts.='<td>'.$value.'&nbsp;</td>';
+                         } else {
+                             $prevattempts.='<td>&nbsp;</td>';
+                         }
+                     } else {
+                         if ($key =~ /\./) {
+                             my $value = &format_previous_attempt_value($key,
+                                               $returnhash{$version.':'.$key});
+                             $prevattempts.='<td>'.$value.'&nbsp;</td>';
+                         } else {
+                             $prevattempts.='<td>&nbsp;</td>';
+                         }
+                     }
+                 }
+             } else {
+ 	        foreach my $key (sort(keys(%lasthash))) {
+                     next if ($key =~ /\.foilorder$/);
+ 		    my $value = &format_previous_attempt_value($key,
+ 			            $returnhash{$version.':'.$key});
+ 		    $prevattempts.='<td>'.$value.'&nbsp;</td>';
+ 	        }
+             }
+ 	    $prevattempts.=&end_data_table_row();
  	 }
        }
-       $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Current</td>';
+       my @currhidden = keys(%lasthidden);
-       foreach (sort(keys %lasthash)) {
+       $prevattempts.=&start_data_table_row().'<td>'.&mt('Current').'</td>';
- 	my $value;
+       foreach my $key (sort(keys(%lasthash))) {
- 	if ($_ =~ /timestamp/) {
+           next if ($key =~ /\.foilorder$/);
- 	  $value=scalar(localtime($lasthash{$_}));
+           if (%typeparts) {
- 	} else {
+               my $hidden;
- 	  $value=$lasthash{$_};
+               foreach my $id (@currhidden) {
- 	}
+                   if ($key =~ /^\Q$id\E/) {
- 	$value=&Apache::lonnet::unescape($value);
+                       $hidden = 1;
- 	if ($_ =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
+                       last;
- 	$prevattempts.='<td>'.$value.'&nbsp;</td>';
+                   }
+               }
+               if ($hidden) {
+                   my ($id,$data) = ($key =~ /^(.+)\.([^.]+)$/);
+                   if (($data eq 'award') || ($data eq 'awarddetail')) {
+                       my $value = &format_previous_attempt_value($key,$lasthash{$key});
+                       if ($key =~/$regexp$/ && (defined &$gradesub)) {
+                           $value = &$gradesub($value);
+                       }
+                       $prevattempts.='<td>'.$value.'&nbsp;</td>';
+                   } else {
+                       $prevattempts.='<td>&nbsp;</td>';
+                   }
+               } else {
+                   my $value = &format_previous_attempt_value($key,$lasthash{$key});
+                   if ($key =~/$regexp$/ && (defined &$gradesub)) {
+                       $value = &$gradesub($value);
+                   }
+                   $prevattempts.='<td>'.$value.'&nbsp;</td>';
+               }
+           } else {
+ 	      my $value = &format_previous_attempt_value($key,$lasthash{$key});
+ 	      if ($key =~/$regexp$/ && (defined &$gradesub)) {
+                   $value = &$gradesub($value);
+               }
+ 	      $prevattempts.='<td>'.$value.'&nbsp;</td>';
+           }
        }
-       $prevattempts.='</tr></table></td></tr></table>';
+       $prevattempts.= &end_data_table_row().&end_data_table();
      } else {
-       $prevattempts='Nothing submitted - no attempts.';
+       $prevattempts=
+ 	  &start_data_table().&start_data_table_row().
+ 	  '<td>'.&mt('Nothing submitted - no attempts.').'</td>'.
+ 	  &end_data_table_row().&end_data_table();
      }
    } else {
-     $prevattempts='No data.';
+     $prevattempts=
+ 	  &start_data_table().&start_data_table_row().
+ 	  '<td>'.&mt('No data.').'</td>'.
+ 	  &end_data_table_row().&end_data_table();
    }
  }
+ sub format_previous_attempt_value {
+     my ($key,$value) = @_;
+     if (($key =~ /timestamp/) || ($key=~/duedate/)) {
+ 	$value = &Apache::lonlocal::locallocaltime($value);
+     } elsif (ref($value) eq 'ARRAY') {
+ 	$value = '('.join(', ', @{ $value }).')';
+     } elsif ($key =~ /answerstring$/) {
+         my %answers = &Apache::lonnet::str2hash($value);
+         my @anskeys = sort(keys(%answers));
+         if (@anskeys == 1) {
+             my $answer = $answers{$anskeys[0]};
+             if ($answer =~ m{\0}) {
+                 $answer =~ s{\0}{,}g;
+             }
+             my $tag_internal_answer_name = 'INTERNAL';
+             if ($anskeys[0] eq $tag_internal_answer_name) {
+                 $value = $answer;
+             } else {
+                 $value = $anskeys[0].'='.$answer;
+             }
+         } else {
+             foreach my $ans (@anskeys) {
+                 my $answer = $answers{$ans};
+                 if ($answer =~ m{\0}) {
+                     $answer =~ s{\0}{,}g;
+                 }
+                 $value .=  $ans.'='.$answer.'<br />';;
+             }
+         }
+     } else {
+ 	$value = &unescape($value);
+     }
+     return $value;
+ }
  sub relative_to_absolute {
      my ($url,$output)=@_;
      my $parser=HTML::TokeParser->new(\$output);
- Line 1790  sub relative_to_absolute {
+ Line 3963  sub relative_to_absolute {
  	}
      }
      $thisdir=~s-/[^/]*$--;
-     foreach (@rlinks) {
+     foreach my $link (@rlinks) {
- 	unless (($_=~/^http:\/\//i) ||
+ 	unless (($link=~/^https?\:\/\//i) ||
- 		($_=~/^\//) ||
+ 		($link=~/^\//) ||
- 		($_=~/^javascript:/i) ||
+ 		($link=~/^javascript:/i) ||
- 		($_=~/^mailto:/i) ||
+ 		($link=~/^mailto:/i) ||
- 		($_=~/^\#/)) {
+ 		($link=~/^\#/)) {
- 	    my $newlocation=&Apache::lonnet::hreflocation($thisdir,$_);
+ 	    my $newlocation=&Apache::lonnet::hreflocation($thisdir,$link);
- 	    $output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/;
+ 	    $output=~s/(\"|\'|\=\s*)\Q$link\E(\"|\'|\s|\>)/$1$newlocation$2/;
  	}
      }
  # -------------------------------------------------- Deal with Applet codebases
- Line 1807  sub relative_to_absolute {
+ Line 3980  sub relative_to_absolute {
  =pod
- =item * get_student_view
+ =item * &get_student_view()
  show a snapshot of what student was looking at
  =cut
  sub get_student_view {
-   my ($symb,$username,$domain,$courseid,$target) = @_;
+   my ($symb,$username,$domain,$courseid,$target,$moreenv) = @_;
    my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
-   my (%old,%moreenv);
+   my (%form);
    my @elements=('symb','courseid','domain','username');
    foreach my $element (@elements) {
-     $old{$element}=$ENV{'form.grade_'.$element};
+       $form{'grade_'.$element}=eval '$'.$element #'
-     $moreenv{'form.grade_'.$element}=eval '$'.$element #'
    }
-   if ($target eq 'tex') {$moreenv{'form.grade_target'} = 'tex';}
+   if (defined($moreenv)) {
-   &Apache::lonnet::appenv(%moreenv);
+       %form=(%form,%{$moreenv});
-   $feedurl=&Apache::lonnet::clutter($feedurl);
-   my $userview=&Apache::lonnet::ssi_body($feedurl);
-   &Apache::lonnet::delenv('form.grade_');
-   foreach my $element (@elements) {
-     $ENV{'form.grade_'.$element}=$old{$element};
    }
+   if (defined($target)) { $form{'grade_target'} = $target; }
+   $feedurl=&Apache::lonnet::clutter($feedurl);
+   my ($userview,$response)=&Apache::lonnet::ssi_body($feedurl,%form);
    $userview=~s/\<body[^\>]*\>//gi;
    $userview=~s/\<\/body\>//gi;
    $userview=~s/\<html\>//gi;
- Line 1838  sub get_student_view {
+ Line 4008  sub get_student_view {
    $userview=~s/\<\/head\>//gi;
    $userview=~s/action\s*\=/would_be_action\=/gi;
    $userview=&relative_to_absolute($feedurl,$userview);
-   return $userview;
+   if (wantarray) {
+      return ($userview,$response);
+   } else {
+      return $userview;
+   }
+ }
+ sub get_student_view_with_retries {
+   my ($symb,$retries,$username,$domain,$courseid,$target,$moreenv) = @_;
+     my $ok = 0;                 # True if we got a good response.
+     my $content;
+     my $response;
+     # Try to get the student_view done. within the retries count:
+     do {
+          ($content, $response) = &get_student_view($symb,$username,$domain,$courseid,$target,$moreenv);
+          $ok      = $response->is_success;
+          if (!$ok) {
+             &Apache::lonnet::logthis("Failed get_student_view_with_retries on $symb: ".$response->is_success.', '.$response->code.', '.$response->message);
+          }
+          $retries--;
+     } while (!$ok && ($retries > 0));
+     if (!$ok) {
+        $content = '';          # On error return an empty content.
+     }
+     if (wantarray) {
+        return ($content, $response);
+     } else {
+        return $content;
+     }
  }
  =pod
- =item * get_student_answers()
+ =item * &get_student_answers()
  show a snapshot of how student was answering problem
- Line 1852  show a snapshot of how student was answe
+ Line 4054  show a snapshot of how student was answe
  sub get_student_answers {
    my ($symb,$username,$domain,$courseid,%form) = @_;
    my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
-   my (%old,%moreenv);
+   my (%moreenv);
    my @elements=('symb','courseid','domain','username');
    foreach my $element (@elements) {
-     $old{$element}=$ENV{'form.grade_'.$element};
+     $moreenv{'grade_'.$element}=eval '$'.$element #'
-     $moreenv{'form.grade_'.$element}=eval '$'.$element #'
-   }
-   $moreenv{'form.grade_target'}='answer';
-   &Apache::lonnet::appenv(%moreenv);
-   my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%form);
-   &Apache::lonnet::delenv('form.grade_');
-   foreach my $element (@elements) {
-     $ENV{'form.grade_'.$element}=$old{$element};
    }
+   $moreenv{'grade_target'}='answer';
+   %moreenv=(%form,%moreenv);
+   $feedurl = &Apache::lonnet::clutter($feedurl);
+   my $userview=&Apache::lonnet::ssi($feedurl,%moreenv);
    return $userview;
  }
- Line 1872  sub get_student_answers {
+ Line 4070  sub get_student_answers {
  =item * &submlink()
- Inputs: $text $uname $udom $symb
+ Inputs: $text $uname $udom $symb $target
  Returns: A link to grades.pm such as to see the SUBM view of a student
- Line 1880  Returns: A link to grades.pm such as to
+ Line 4078  Returns: A link to grades.pm such as to
  ###############################################
  sub submlink {
-     my ($text,$uname,$udom,$symb)=@_;
+     my ($text,$uname,$udom,$symb,$target)=@_;
      if (!($uname && $udom)) {
  	(my $cursymb, my $courseid,$udom,$uname)=
- 	    &Apache::lonxml::whichuser($symb);
+ 	    &Apache::lonnet::whichuser($symb);
  	if (!$symb) { $symb=$cursymb; }
      }
-     if (!$symb) { $symb=&symbread(); }
+     if (!$symb) { $symb=&Apache::lonnet::symbread(); }
-     return '<a href="/adm/grades?symb='.$symb.'&student='.$uname.
+     $symb=&escape($symb);
- 	'&userdom='.$udom.'&command=submission">'.$text.'</a>';
+     if ($target) { $target=" target=\"$target\""; }
+     return
+         '<a href="/adm/grades?command=submission'.
+         '&amp;symb='.$symb.
+         '&amp;student='.$uname.
+         '&amp;userdom='.$udom.'"'.
+         $target.'>'.$text.'</a>';
+ }
+ ##############################################
+ =pod
+ =item * &pgrdlink()
+ Inputs: $text $uname $udom $symb $target
+ Returns: A link to grades.pm such as to see the PGRD view of a student
+ =cut
+ ###############################################
+ sub pgrdlink {
+     my $link=&submlink(@_);
+     $link=~s/(&command=submission)/$1&showgrading=yes/;
+     return $link;
+ }
+ ##############################################
+ =pod
+ =item * &pprmlink()
+ Inputs: $text $uname $udom $symb $target
+ Returns: A link to parmset.pm such as to see the PPRM view of a
+ student and a specific resource
+ =cut
+ ###############################################
+ sub pprmlink {
+     my ($text,$uname,$udom,$symb,$target)=@_;
+     if (!($uname && $udom)) {
+ 	(my $cursymb, my $courseid,$udom,$uname)=
+ 	    &Apache::lonnet::whichuser($symb);
+ 	if (!$symb) { $symb=$cursymb; }
+     }
+     if (!$symb) { $symb=&Apache::lonnet::symbread(); }
+     $symb=&escape($symb);
+     if ($target) { $target="target=\"$target\""; }
+     return '<a href="/adm/parmset?command=set&amp;'.
+ 	'symb='.$symb.'&amp;uname='.$uname.
+ 	'&amp;udom='.$udom.'" '.$target.'>'.$text.'</a>';
  }
  ##############################################
- Line 1902  sub submlink {
+ Line 4152  sub submlink {
  sub timehash {
-     my @ltime=localtime(shift);
+     my ($thistime) = @_;
-     return ( 'seconds' => $ltime[0],
+     my $timezone = &Apache::lonlocal::gettimezone();
-              'minutes' => $ltime[1],
+     my $dt = DateTime->from_epoch(epoch => $thistime)
-              'hours'   => $ltime[2],
+                      ->set_time_zone($timezone);
-              'day'     => $ltime[3],
+     my $wday = $dt->day_of_week();
-              'month'   => $ltime[4]+1,
+     if ($wday == 7) { $wday = 0; }
-              'year'    => $ltime[5]+1900,
+     return ( 'second' => $dt->second(),
-              'weekday' => $ltime[6],
+              'minute' => $dt->minute(),
-              'dayyear' => $ltime[7]+1,
+              'hour'   => $dt->hour(),
-              'dlsav'   => $ltime[8] );
+              'day'     => $dt->day_of_month(),
+              'month'   => $dt->month(),
+              'year'    => $dt->year(),
+              'weekday' => $wday,
+              'dayyear' => $dt->day_of_year(),
+              'dlsav'   => $dt->is_dst() );
+ }
+ sub utc_string {
+     my ($date)=@_;
+     return strftime("%Y%m%dT%H%M%SZ",gmtime($date));
  }
  sub maketime {
      my %th=@_;
+     my ($epoch_time,$timezone,$dt);
+     $timezone = &Apache::lonlocal::gettimezone();
+     eval {
+         $dt = DateTime->new( year   => $th{'year'},
+                              month  => $th{'month'},
+                              day    => $th{'day'},
+                              hour   => $th{'hour'},
+                              minute => $th{'minute'},
+                              second => $th{'second'},
+                              time_zone => $timezone,
+                          );
+     };
+     if (!$@) {
+         $epoch_time = $dt->epoch;
+         if ($epoch_time) {
+             return $epoch_time;
+         }
+     }
      return POSIX::mktime(
          ($th{'seconds'},$th{'minutes'},$th{'hours'},
-          $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,$th{'dlsav'}));
+          $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,-1));
  }
  #########################################
- #
- # Retro-fixing of un-backward-compatible time format
- sub unsqltime {
+ sub findallcourses {
-     my $timestamp=shift;
+     my ($roles,$uname,$udom) = @_;
-     if ($timestamp=~/^(\d+)\-(\d+)\-(\d+)\s+(\d+)\:(\d+)\:(\d+)$/) {
+     my %roles;
-        $timestamp=&maketime(
+     if (ref($roles)) { %roles = map { $_ => 1 } @{$roles}; }
- 	   'year'=>$1,'month'=>$2,'day'=>$3,
+     my %courses;
-            'hours'=>$4,'minutes'=>$5,'seconds'=>$6);
+     my $now=time;
+     if (!defined($uname)) {
+         $uname = $env{'user.name'};
      }
-     return $timestamp;
+     if (!defined($udom)) {
+         $udom = $env{'user.domain'};
+     }
+     if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
+         my %roleshash = &Apache::lonnet::dump('roles',$udom,$uname);
+         if (!%roles) {
+             %roles = (
+                        cc => 1,
+                        co => 1,
+                        in => 1,
+                        ep => 1,
+                        ta => 1,
+                        cr => 1,
+                        st => 1,
+              );
+         }
+         foreach my $entry (keys(%roleshash)) {
+             my ($trole,$tend,$tstart) = split(/_/,$roleshash{$entry});
+             if ($trole =~ /^cr/) {
+                 next if (!exists($roles{$trole}) && !exists($roles{'cr'}));
+             } else {
+                 next if (!exists($roles{$trole}));
+             }
+             if ($tend) {
+                 next if ($tend < $now);
+             }
+             if ($tstart) {
+                 next if ($tstart > $now);
+             }
+             my ($cdom,$cnum,$sec,$cnumpart,$secpart,$role);
+             (undef,$cdom,$cnumpart,$secpart) = split(/\//,$entry);
+             my $value = $trole.'/'.$cdom.'/';
+             if ($secpart eq '') {
+                 ($cnum,$role) = split(/_/,$cnumpart);
+                 $sec = 'none';
+                 $value .= $cnum.'/';
+             } else {
+                 $cnum = $cnumpart;
+                 ($sec,$role) = split(/_/,$secpart);
+                 $value .= $cnum.'/'.$sec;
+             }
+             if (ref($courses{$cdom.'_'.$cnum}{$sec}) eq 'ARRAY') {
+                 unless (grep(/^\Q$value\E$/,@{$courses{$cdom.'_'.$cnum}{$sec}})) {
+                     push(@{$courses{$cdom.'_'.$cnum}{$sec}},$value);
+                 }
+             } else {
+                 @{$courses{$cdom.'_'.$cnum}{$sec}} = ($value);
+             }
+         }
+     } else {
+         foreach my $key (keys(%env)) {
+ 	    if ( $key=~m{^user\.role\.(\w+)\./($match_domain)/($match_courseid)/?(\w*)$} ||
+                  $key=~m{^user\.role\.(cr/$match_domain/$match_username/\w+)\./($match_domain)/($match_courseid)/?(\w*)$}) {
+ 	        my ($role,$cdom,$cnum,$sec) = ($1,$2,$3,$4);
+ 	        next if ($role eq 'ca' || $role eq 'aa');
+ 	        next if (%roles && !exists($roles{$role}));
+ 	        my ($starttime,$endtime)=split(/\./,$env{$key});
+                 my $active=1;
+                 if ($starttime) {
+ 		    if ($now<$starttime) { $active=0; }
+                 }
+                 if ($endtime) {
+                     if ($now>$endtime) { $active=0; }
+                 }
+                 if ($active) {
+                     my $value = $role.'/'.$cdom.'/'.$cnum.'/';
+                     if ($sec eq '') {
+                         $sec = 'none';
+                     } else {
+                         $value .= $sec;
+                     }
+                     if (ref($courses{$cdom.'_'.$cnum}{$sec}) eq 'ARRAY') {
+                         unless (grep(/^\Q$value\E$/,@{$courses{$cdom.'_'.$cnum}{$sec}})) {
+                             push(@{$courses{$cdom.'_'.$cnum}{$sec}},$value);
+                         }
+                     } else {
+                         @{$courses{$cdom.'_'.$cnum}{$sec}} = ($value);
+                     }
+                 }
+             }
+         }
+     }
+     return %courses;
  }
- #########################################
+ ###############################################
- sub findallcourses {
+ sub blockcheck {
-     my %courses=();
+     my ($setters,$activity,$uname,$udom,$url) = @_;
-     my $now=time;
-     foreach (keys %ENV) {
+     if (!defined($udom)) {
- 	if ($_=~/^user\.role\.\w+\.\/(\w+)\/(\w+)/) {
+         $udom = $env{'user.domain'};
- 	    my ($starttime,$endtime)=$ENV{$_};
+     }
-             my $active=1;
+     if (!defined($uname)) {
-             if ($starttime) {
+         $uname = $env{'user.name'};
- 		if ($now<$starttime) { $active=0; }
+     }
+     # If uname and udom are for a course, check for blocks in the course.
+     if (&Apache::lonnet::is_course($udom,$uname)) {
+         my ($startblock,$endblock,$triggerblock) =
+             &get_blocks($setters,$activity,$udom,$uname,$url);
+         return ($startblock,$endblock,$triggerblock);
+     }
+     my $startblock = 0;
+     my $endblock = 0;
+     my $triggerblock = '';
+     my %live_courses = &findallcourses(undef,$uname,$udom);
+     # If uname is for a user, and activity is course-specific, i.e.,
+     # boards, chat or groups, check for blocking in current course only.
+     if (($activity eq 'boards' || $activity eq 'chat' ||
+          $activity eq 'groups') && ($env{'request.course.id'})) {
+         foreach my $key (keys(%live_courses)) {
+             if ($key ne $env{'request.course.id'}) {
+                 delete($live_courses{$key});
+             }
+         }
+     }
+     my $otheruser = 0;
+     my %own_courses;
+     if ((($uname ne $env{'user.name'})) || ($udom ne $env{'user.domain'})) {
+         # Resource belongs to user other than current user.
+         $otheruser = 1;
+         # Gather courses for current user
+         %own_courses =
+             &findallcourses(undef,$env{'user.name'},$env{'user.domain'});
+     }
+     # Gather active course roles - course coordinator, instructor,
+     # exam proctor, ta, student, or custom role.
+     foreach my $course (keys(%live_courses)) {
+         my ($cdom,$cnum);
+         if ((defined($env{'course.'.$course.'.domain'})) && (defined($env{'course.'.$course.'.num'}))) {
+             $cdom = $env{'course.'.$course.'.domain'};
+             $cnum = $env{'course.'.$course.'.num'};
+         } else {
+             ($cdom,$cnum) = split(/_/,$course);
+         }
+         my $no_ownblock = 0;
+         my $no_userblock = 0;
+         if ($otheruser && $activity ne 'com') {
+             # Check if current user has 'evb' priv for this
+             if (defined($own_courses{$course})) {
+                 foreach my $sec (keys(%{$own_courses{$course}})) {
+                     my $checkrole = 'cm./'.$cdom.'/'.$cnum;
+                     if ($sec ne 'none') {
+                         $checkrole .= '/'.$sec;
+                     }
+                     if (&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) {
+                         $no_ownblock = 1;
+                         last;
+                     }
+                 }
+             }
+             # if they have 'evb' priv and are currently not playing student
+             next if (($no_ownblock) &&
+                  ($env{'request.role'} !~ m{^st\./$cdom/$cnum}));
+         }
+         foreach my $sec (keys(%{$live_courses{$course}})) {
+             my $checkrole = 'cm./'.$cdom.'/'.$cnum;
+             if ($sec ne 'none') {
+                 $checkrole .= '/'.$sec;
+             }
+             if ($otheruser) {
+                 # Resource belongs to user other than current user.
+                 # Assemble privs for that user, and check for 'evb' priv.
+                 my (%allroles,%userroles);
+                 if (ref($live_courses{$course}{$sec}) eq 'ARRAY') {
+                     foreach my $entry (@{$live_courses{$course}{$sec}}) {
+                         my ($trole,$tdom,$tnum,$tsec);
+                         if ($entry =~ /^cr/) {
+                             ($trole,$tdom,$tnum,$tsec) =
+                                 ($entry =~ m|^(cr/$match_domain/$match_username/\w+)\./($match_domain)/($match_username)/?(\w*)$|);
+                         } else {
+                            ($trole,$tdom,$tnum,$tsec) = split(/\//,$entry);
+                         }
+                         my ($spec,$area,$trest);
+                         $area = '/'.$tdom.'/'.$tnum;
+                         $trest = $tnum;
+                         if ($tsec ne '') {
+                             $area .= '/'.$tsec;
+                             $trest .= '/'.$tsec;
+                         }
+                         $spec = $trole.'.'.$area;
+                         if ($trole =~ /^cr/) {
+                             &Apache::lonnet::custom_roleprivs(\%allroles,$trole,
+                                                               $tdom,$spec,$trest,$area);
+                         } else {
+                             &Apache::lonnet::standard_roleprivs(\%allroles,$trole,
+                                                                 $tdom,$spec,$trest,$area);
+                         }
+                     }
+                     my ($author,$adv) = &Apache::lonnet::set_userprivs(\%userroles,\%allroles);
+                     if ($userroles{'user.priv.'.$checkrole} =~ /evb\&([^\:]*)/) {
+                         if ($1) {
+                             $no_userblock = 1;
+                             last;
+                         }
+                     }
+                 }
+             } else {
+                 # Resource belongs to current user
+                 # Check for 'evb' priv via lonnet::allowed().
+                 if (&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) {
+                     $no_ownblock = 1;
+                     last;
+                 }
+             }
+         }
+         # if they have the evb priv and are currently not playing student
+         next if (($no_ownblock) &&
+                  ($env{'request.role'} !~ m{^st\./\Q$cdom\E/\Q$cnum\E}));
+         next if ($no_userblock);
+         # Retrieve blocking times and identity of locker for course
+         # of specified user, unless user has 'evb' privilege.
+         my ($start,$end,$trigger) =
+             &get_blocks($setters,$activity,$cdom,$cnum,$url);
+         if (($start != 0) &&
+             (($startblock == 0) || ($startblock > $start))) {
+             $startblock = $start;
+             if ($trigger ne '') {
+                 $triggerblock = $trigger;
+             }
+         }
+         if (($end != 0)  &&
+             (($endblock == 0) || ($endblock < $end))) {
+             $endblock = $end;
+             if ($trigger ne '') {
+                 $triggerblock = $trigger;
+             }
+         }
+     }
+     return ($startblock,$endblock,$triggerblock);
+ }
+ sub get_blocks {
+     my ($setters,$activity,$cdom,$cnum,$url) = @_;
+     my $startblock = 0;
+     my $endblock = 0;
+     my $triggerblock = '';
+     my $course = $cdom.'_'.$cnum;
+     $setters->{$course} = {};
+     $setters->{$course}{'staff'} = [];
+     $setters->{$course}{'times'} = [];
+     $setters->{$course}{'triggers'} = [];
+     my (@blockers,%triggered);
+     my $now = time;
+     my %commblocks = &Apache::lonnet::get_comm_blocks($cdom,$cnum);
+     if ($activity eq 'docs') {
+         @blockers = &Apache::lonnet::has_comm_blocking('bre',undef,$url,\%commblocks);
+         foreach my $block (@blockers) {
+             if ($block =~ /^firstaccess____(.+)$/) {
+                 my $item = $1;
+                 my $type = 'map';
+                 my $timersymb = $item;
+                 if ($item eq 'course') {
+                     $type = 'course';
+                 } elsif ($item =~ /___\d+___/) {
+                     $type = 'resource';
+                 } else {
+                     $timersymb = &Apache::lonnet::symbread($item);
+                 }
+                 my $start = $env{'course.'.$cdom.'_'.$cnum.'.firstaccess.'.$timersymb};
+                 my $end = $start + $env{'course.'.$cdom.'_'.$cnum.'.timerinterval.'.$timersymb};
+                 $triggered{$block} = {
+                                        start => $start,
+                                        end   => $end,
+                                        type  => $type,
+                                      };
+             }
+         }
+     } else {
+         foreach my $block (keys(%commblocks)) {
+             if ($block =~ m/^(\d+)____(\d+)$/) {
+                 my ($start,$end) = ($1,$2);
+                 if ($start <= time && $end >= time) {
+                     if (ref($commblocks{$block}) eq 'HASH') {
+                         if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
+                             if ($commblocks{$block}{'blocks'}{$activity} eq 'on') {
+                                 unless(grep(/^\Q$block\E$/,@blockers)) {
+                                     push(@blockers,$block);
+                                 }
+                             }
+                         }
+                     }
+                 }
+             } elsif ($block =~ /^firstaccess____(.+)$/) {
+                 my $item = $1;
+                 my $timersymb = $item;
+                 my $type = 'map';
+                 if ($item eq 'course') {
+                     $type = 'course';
+                 } elsif ($item =~ /___\d+___/) {
+                     $type = 'resource';
+                 } else {
+                     $timersymb = &Apache::lonnet::symbread($item);
+                 }
+                 my $start = $env{'course.'.$cdom.'_'.$cnum.'.firstaccess.'.$timersymb};
+                 my $end = $start + $env{'course.'.$cdom.'_'.$cnum.'.timerinterval.'.$timersymb};
+                 if ($start && $end) {
+                     if (($start <= time) && ($end >= time)) {
+                         unless (grep(/^\Q$block\E$/,@blockers)) {
+                             push(@blockers,$block);
+                             $triggered{$block} = {
+                                                    start => $start,
+                                                    end   => $end,
+                                                    type  => $type,
+                                                  };
+                         }
+                     }
+                 }
+             }
+         }
+     }
+     foreach my $blocker (@blockers) {
+         my ($staff_name,$staff_dom,$title,$blocks) =
+             &parse_block_record($commblocks{$blocker});
+         push(@{$$setters{$course}{'staff'}},[$staff_name,$staff_dom]);
+         my ($start,$end,$triggertype);
+         if ($blocker =~ m/^(\d+)____(\d+)$/) {
+             ($start,$end) = ($1,$2);
+         } elsif (ref($triggered{$blocker}) eq 'HASH') {
+             $start = $triggered{$blocker}{'start'};
+             $end = $triggered{$blocker}{'end'};
+             $triggertype = $triggered{$blocker}{'type'};
+         }
+         if ($start) {
+             push(@{$$setters{$course}{'times'}}, [$start,$end]);
+             if ($triggertype) {
+                 push(@{$$setters{$course}{'triggers'}},$triggertype);
+             } else {
+                 push(@{$$setters{$course}{'triggers'}},0);
+             }
+             if ( ($startblock == 0) || ($startblock > $start) ) {
+                 $startblock = $start;
+                 if ($triggertype) {
+                     $triggerblock = $blocker;
+                 }
              }
-             if ($endtime) {
+             if ( ($endblock == 0) || ($endblock < $end) ) {
-                 if ($now>$endtime) { $active=0; }
+                $endblock = $end;
+                if ($triggertype) {
+                    $triggerblock = $blocker;
+                }
              }
-             if ($active) { $courses{$1.'_'.$2}=1; }
          }
      }
-     return keys %courses;
+     return ($startblock,$endblock,$triggerblock);
+ }
+ sub parse_block_record {
+     my ($record) = @_;
+     my ($setuname,$setudom,$title,$blocks);
+     if (ref($record) eq 'HASH') {
+         ($setuname,$setudom) = split(/:/,$record->{'setter'});
+         $title = &unescape($record->{'event'});
+         $blocks = $record->{'blocks'};
+     } else {
+         my @data = split(/:/,$record,3);
+         if (scalar(@data) eq 2) {
+             $title = $data[1];
+             ($setuname,$setudom) = split(/@/,$data[0]);
+         } else {
+             ($setuname,$setudom,$title) = @data;
+         }
+         $blocks = { 'com' => 'on' };
+     }
+     return ($setuname,$setudom,$title,$blocks);
+ }
+ sub blocking_status {
+     my ($activity,$uname,$udom,$url) = @_;
+     my %setters;
+ # check for active blocking
+     my ($startblock,$endblock,$triggerblock) =
+         &blockcheck(\%setters,$activity,$uname,$udom,$url);
+     my $blocked = 0;
+     if ($startblock && $endblock) {
+         $blocked = 1;
+     }
+ # caller just wants to know whether a block is active
+     if (!wantarray) { return $blocked; }
+ # build a link to a popup window containing the details
+     my $querystring  = "?activity=$activity";
+ # $uname and $udom decide whose portfolio the user is trying to look at
+     if ($activity eq 'port') {
+         $querystring .= "&amp;udom=$udom"      if $udom;
+         $querystring .= "&amp;uname=$uname"    if $uname;
+     } elsif ($activity eq 'docs') {
+         $querystring .= '&amp;url='.&HTML::Entities::encode($url,'&"');
+     }
+     my $output .= <<'END_MYBLOCK';
+ function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
+     var options = "width=" + w + ",height=" + h + ",";
+     options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
+     options += "menubar=no,toolbar="+toolbar+",location=no,directories=no";
+     var newWin = window.open(url, wdwName, options);
+     newWin.focus();
+ }
+ END_MYBLOCK
+     $output = Apache::lonhtmlcommon::scripttag($output);
+     my $popupUrl = "/adm/blockingstatus/$querystring";
+     my $text = &mt('Communication Blocked');
+     if ($activity eq 'docs') {
+         $text = &mt('Content Access Blocked');
+     } elsif ($activity eq 'printout') {
+         $text = &mt('Printing Blocked');
+     }
+     $output .= <<"END_BLOCK";
+ <div class='LC_comblock'>
+   <a onclick='openWindow("$popupUrl","Blocking Table",600,300,"no","no");return false;' href='/adm/blockingstatus/$querystring'
+   title='$text'>
+   <img class='LC_noBorder LC_middle' title='$text' src='/res/adm/pages/comblock.png' alt='$text'/></a>
+   <a onclick='openWindow("$popupUrl","Blocking Table",600,300,"no","no");return false;' href='/adm/blockingstatus/$querystring'
+   title='$text'>$text</a>
+ </div>
+ END_BLOCK
+     return ($blocked, $output);
  }
  ###############################################
+ sub check_ip_acc {
+     my ($acc)=@_;
+     &Apache::lonxml::debug("acc is $acc");
+     if (!defined($acc) || $acc =~ /^\s*$/ || $acc =~/^\s*no\s*$/i) {
+         return 1;
+     }
+     my $allowed=0;
+     my $ip=$env{'request.host'} || $ENV{'REMOTE_ADDR'};
+     my $name;
+     foreach my $pattern (split(',',$acc)) {
+         $pattern =~ s/^\s*//;
+         $pattern =~ s/\s*$//;
+         if ($pattern =~ /\*$/) {
+             #35.8.*
+             $pattern=~s/\*//;
+             if ($ip =~ /^\Q$pattern\E/) { $allowed=1; }
+         } elsif ($pattern =~ /(\d+\.\d+\.\d+)\.\[(\d+)-(\d+)\]$/) {
+             #35.8.3.[34-56]
+             my $low=$2;
+             my $high=$3;
+             $pattern=$1;
+             if ($ip =~ /^\Q$pattern\E/) {
+                 my $last=(split(/\./,$ip))[3];
+                 if ($last <=$high && $last >=$low) { $allowed=1; }
+             }
+         } elsif ($pattern =~ /^\*/) {
+             #*.msu.edu
+             $pattern=~s/\*//;
+             if (!defined($name)) {
+                 use Socket;
+                 my $netaddr=inet_aton($ip);
+                 ($name)=gethostbyaddr($netaddr,AF_INET);
+             }
+             if ($name =~ /\Q$pattern\E$/i) { $allowed=1; }
+         } elsif ($pattern =~ /\d+\.\d+\.\d+\.\d+/) {
+             #127.0.0.1
+             if ($ip =~ /^\Q$pattern\E/) { $allowed=1; }
+         } else {
+             #some.name.com
+             if (!defined($name)) {
+                 use Socket;
+                 my $netaddr=inet_aton($ip);
+                 ($name)=gethostbyaddr($netaddr,AF_INET);
+             }
+             if ($name =~ /\Q$pattern\E$/i) { $allowed=1; }
+         }
+         if ($allowed) { last; }
+     }
+     return $allowed;
+ }
  ###############################################
  =pod
- Line 1977  Returns: Determines which domain should
+ Line 4718  Returns: Determines which domain should
  ###############################################
  sub determinedomain {
      my $domain=shift;
-    if (! $domain) {
+     if (! $domain) {
          # Determine domain if we have not been given one
-         $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
+         $domain = &Apache::lonnet::default_login_domain();
-         if ($ENV{'user.domain'}) { $domain=$ENV{'user.domain'}; }
+         if ($env{'user.domain'}) { $domain=$env{'user.domain'}; }
-         if ($ENV{'request.role.domain'}) {
+         if ($env{'request.role.domain'}) {
-             $domain=$ENV{'request.role.domain'};
+             $domain=$env{'request.role.domain'};
          }
      }
      return $domain;
  }
  ###############################################
+ sub devalidate_domconfig_cache {
+     my ($udom)=@_;
+     &Apache::lonnet::devalidate_cache_new('domainconfig',$udom);
+ }
+ # ---------------------- Get domain configuration for a domain
+ sub get_domainconf {
+     my ($udom) = @_;
+     my $cachetime=1800;
+     my ($result,$cached)=&Apache::lonnet::is_cached_new('domainconfig',$udom);
+     if (defined($cached)) { return %{$result}; }
+     my %domconfig = &Apache::lonnet::get_dom('configuration',
+ 					     ['login','rolecolors','autoenroll'],$udom);
+     my (%designhash,%legacy);
+     if (keys(%domconfig) > 0) {
+         if (ref($domconfig{'login'}) eq 'HASH') {
+             if (keys(%{$domconfig{'login'}})) {
+                 foreach my $key (keys(%{$domconfig{'login'}})) {
+                     if (ref($domconfig{'login'}{$key}) eq 'HASH') {
+                         if ($key eq 'loginvia') {
+                             if (ref($domconfig{'login'}{'loginvia'}) eq 'HASH') {
+                                 foreach my $hostname (keys(%{$domconfig{'login'}{'loginvia'}})) {
+                                     if (ref($domconfig{'login'}{'loginvia'}{$hostname}) eq 'HASH') {
+                                         if ($domconfig{'login'}{'loginvia'}{$hostname}{'server'}) {
+                                             my $server = $domconfig{'login'}{'loginvia'}{$hostname}{'server'};
+                                             $designhash{$udom.'.login.loginvia'} = $server;
+                                             if ($domconfig{'login'}{'loginvia'}{$hostname}{'serverpath'} eq 'custom') {
+                                                 $designhash{$udom.'.login.loginvia_'.$hostname} = $server.':'.$domconfig{'login'}{'loginvia'}{$hostname}{'custompath'};
+                                             } else {
+                                                 $designhash{$udom.'.login.loginvia_'.$hostname} = $server.':'.$domconfig{'login'}{'loginvia'}{$hostname}{'serverpath'};
+                                             }
+                                             if ($domconfig{'login'}{'loginvia'}{$hostname}{'exempt'}) {
+                                                 $designhash{$udom.'.login.loginvia_exempt_'.$hostname} = $domconfig{'login'}{'loginvia'}{$hostname}{'exempt'};
+                                             }
+                                         }
+                                     }
+                                 }
+                             }
+                         } else {
+                             foreach my $img (keys(%{$domconfig{'login'}{$key}})) {
+                                 $designhash{$udom.'.login.'.$key.'_'.$img} =
+                                     $domconfig{'login'}{$key}{$img};
+                             }
+                         }
+                     } else {
+                         $designhash{$udom.'.login.'.$key}=$domconfig{'login'}{$key};
+                     }
+                 }
+             } else {
+                 $legacy{'login'} = 1;
+             }
+         } else {
+             $legacy{'login'} = 1;
+         }
+         if (ref($domconfig{'rolecolors'}) eq 'HASH') {
+             if (keys(%{$domconfig{'rolecolors'}})) {
+                 foreach my $role (keys(%{$domconfig{'rolecolors'}})) {
+                     if (ref($domconfig{'rolecolors'}{$role}) eq 'HASH') {
+                         foreach my $item (keys(%{$domconfig{'rolecolors'}{$role}})) {
+                             $designhash{$udom.'.'.$role.'.'.$item}=$domconfig{'rolecolors'}{$role}{$item};
+                         }
+                     }
+                 }
+             } else {
+                 $legacy{'rolecolors'} = 1;
+             }
+         } else {
+             $legacy{'rolecolors'} = 1;
+         }
+         if (ref($domconfig{'autoenroll'}) eq 'HASH') {
+             if ($domconfig{'autoenroll'}{'co-owners'}) {
+                 $designhash{$udom.'.autoassign.co-owners'}=$domconfig{'autoenroll'}{'co-owners'};
+             }
+         }
+         if (keys(%legacy) > 0) {
+             my %legacyhash = &get_legacy_domconf($udom);
+             foreach my $item (keys(%legacyhash)) {
+                 if ($item =~ /^\Q$udom\E\.login/) {
+                     if ($legacy{'login'}) {
+                         $designhash{$item} = $legacyhash{$item};
+                     }
+                 } else {
+                     if ($legacy{'rolecolors'}) {
+                         $designhash{$item} = $legacyhash{$item};
+                     }
+                 }
+             }
+         }
+     } else {
+         %designhash = &get_legacy_domconf($udom);
+     }
+     &Apache::lonnet::do_cache_new('domainconfig',$udom,\%designhash,
+ 				  $cachetime);
+     return %designhash;
+ }
+ sub get_legacy_domconf {
+     my ($udom) = @_;
+     my %legacyhash;
+     my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
+     my $designfile =  $designdir.'/'.$udom.'.tab';
+     if (-e $designfile) {
+         if ( open (my $fh,"<$designfile") ) {
+             while (my $line = <$fh>) {
+                 next if ($line =~ /^\#/);
+                 chomp($line);
+                 my ($key,$val)=(split(/\=/,$line));
+                 if ($val) { $legacyhash{$udom.'.'.$key}=$val; }
+             }
+             close($fh);
+         }
+     }
+     if (-e $Apache::lonnet::perlvar{'lonDocRoot'}.'/adm/lonDomLogos/'.$udom.'.gif') {
+         $legacyhash{$udom.'.login.domlogo'} = "/adm/lonDomLogos/$udom.gif";
+     }
+     return %legacyhash;
+ }
  =pod
  =item * &domainlogo()
- Line 2001  If the domain logo does not exist, a des
+ Line 4863  If the domain logo does not exist, a des
  ###############################################
  sub domainlogo {
      my $domain = &determinedomain(shift);
-      # See if there is a logo
+     my %designhash = &get_domainconf($domain);
-     if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') {
+     # See if there is a logo
- 	my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
+     if ($designhash{$domain.'.login.domlogo'} ne '') {
- 	if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
+         my $imgsrc = $designhash{$domain.'.login.domlogo'};
-         return '<img src="http://'.$ENV{'HTTP_HOST'}.':'.$lonhttpdPort.
+         if ($imgsrc =~ m{^/(adm|res)/}) {
- 	    '/adm/lonDomLogos/'.$domain.'.gif" alt="'.$domain.'" />';
+ 	    if ($imgsrc =~ m{^/res/}) {
-     } elsif(exists($Apache::lonnet::domaindescription{$domain})) {
+ 		my $local_name = &Apache::lonnet::filelocation('',$imgsrc);
-         return $Apache::lonnet::domaindescription{$domain};
+ 		&Apache::lonnet::repcopy($local_name);
+ 	    }
+ 	   $imgsrc = &lonhttpdurl($imgsrc);
+         }
+         return '<img src="'.$imgsrc.'" alt="'.$domain.'" />';
+     } elsif (defined(&Apache::lonnet::domain($domain,'description'))) {
+         return &Apache::lonnet::domain($domain,'description');
      } else {
          return '';
      }
- Line 2026  Returns: value of designparamter $which
+ Line 4894  Returns: value of designparamter $which
  =cut
  ##############################################
  sub designparm {
      my ($which,$domain)=@_;
-     if ($ENV{'browser.blackwhite'} eq 'on') {
+     if (exists($env{'environment.color.'.$which})) {
- 	if ($which=~/\.(font|alink|vlink|link)$/) {
+         return $env{'environment.color.'.$which};
- 	    return '#000000';
- 	}
- 	if ($which=~/\.(pgbg|sidebg)$/) {
- 	    return '#FFFFFF';
- 	}
- 	if ($which=~/\.tabbg$/) {
- 	    return '#CCCCCC';
- 	}
-     }
-     if ($ENV{'environment.color.'.$which}) {
- 	return $ENV{'environment.color.'.$which};
      }
      $domain=&determinedomain($domain);
-     if ($designhash{$domain.'.'.$which}) {
+     my %domdesign;
- 	return $designhash{$domain.'.'.$which};
+     unless ($domain eq 'public') {
+         %domdesign = &get_domainconf($domain);
+     }
+     my $output;
+     if ($domdesign{$domain.'.'.$which} ne '') {
+         $output = $domdesign{$domain.'.'.$which};
      } else {
-         return $designhash{'default.'.$which};
+         $output = $defaultdesign{$which};
      }
+     if (($which =~ /^(student|coordinator|author|admin)\.img$/) ||
+         ($which =~ /login\.(img|logo|domlogo|login)/)) {
+         if ($output =~ m{^/(adm|res)/}) {
+             if ($output =~ m{^/res/}) {
+                 my $local_name = &Apache::lonnet::filelocation('',$output);
+                 &Apache::lonnet::repcopy($local_name);
+             }
+             $output = &lonhttpdurl($output);
+         }
+     }
+     return $output;
+ }
+ ##############################################
+ =pod
+ =item * &authorspace()
+ Inputs: $url (usually will be undef).
+ Returns: Path to Authoring Space containing the resource or
+          directory being viewed (or for which action is being taken).
+          If $url is provided, and begins /priv/<domain>/<uname>
+          the path will be that portion of the $context argument.
+          Otherwise the path will be for the author space of the current
+          user when the current role is author, or for that of the
+          co-author/assistant co-author space when the current role
+          is co-author or assistant co-author.
+ =cut
+ sub authorspace {
+     my ($url) = @_;
+     if ($url ne '') {
+         if ($url =~ m{^(/priv/$match_domain/$match_username/)}) {
+            return $1;
+         }
+     }
+     my $caname = '';
+     my $cadom = '';
+     if ($env{'request.role'} =~ /^(?:ca|aa)/) {
+         ($cadom,$caname) =
+             ($env{'request.role'}=~/($match_domain)\/($match_username)$/);
+     } elsif ($env{'request.role'} =~ m{^au\./($match_domain)/}) {
+         $caname = $env{'user.name'};
+         $cadom = $env{'user.domain'};
+     }
+     if (($caname ne '') && ($cadom ne '')) {
+         return "/priv/$cadom/$caname/";
+     }
+     return;
+ }
+ ##############################################
+ =pod
+ =item * &head_subbox()
+ Inputs: $content (contains HTML code with page functions, etc.)
+ Returns: HTML div with $content
+          To be included in page header
+ =cut
+ sub head_subbox {
+     my ($content)=@_;
+     my $output =
+         '<div class="LC_head_subbox">'
+        .$content
+        .'</div>'
+ }
+ ##############################################
+ =pod
+ =item * &CSTR_pageheader()
+ Input: (optional) filename from which breadcrumb trail is built.
+        In most cases no input as needed, as $env{'request.filename'}
+        is appropriate for use in building the breadcrumb trail.
+ Returns: HTML div with CSTR path and recent box
+          To be included on Authoring Space pages
+ =cut
+ sub CSTR_pageheader {
+     my ($trailfile) = @_;
+     if ($trailfile eq '') {
+         $trailfile = $env{'request.filename'};
+     }
+ # this is for resources; directories have customtitle, and crumbs
+ # and select recent are created in lonpubdir.pm
+     my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
+     my ($udom,$uname,$thisdisfn)=
+         ($trailfile =~ m{^\Q$londocroot\E/priv/([^/]+)/([^/]+)(?:|/(.*))$});
+     my $formaction = "/priv/$udom/$uname/$thisdisfn";
+     $formaction =~ s{/+}{/}g;
+     my $parentpath = '';
+     my $lastitem = '';
+     if ($thisdisfn =~ m-(.+/)([^/]*)$-) {
+         $parentpath = $1;
+         $lastitem = $2;
+     } else {
+         $lastitem = $thisdisfn;
+     }
+     my $output =
+          '<div>'
+         .&Apache::loncommon::help_open_menu('','',3,'Authoring') #FIXME: Broken? Where is it?
+         .'<b>'.&mt('Authoring Space:').'</b> '
+         .'<form name="dirs" method="post" action="'.$formaction
+         .'" target="_top">' #FIXME lonpubdir: target="_parent"
+         .&Apache::lonhtmlcommon::crumbs($uname.'/'.$parentpath,'_top','/priv/'.$udom,undef,undef);
+     if ($lastitem) {
+         $output .=
+              '<span class="LC_filename">'
+             .$lastitem
+             .'</span>';
+     }
+     $output .=
+          '<br />'
+         #FIXME lonpubdir: &Apache::lonhtmlcommon::crumbs($uname.$thisdisfn.'/','_top','/priv','','+1',1)."</b></tt><br />"
+         .&Apache::lonhtmlcommon::select_recent('construct','recent','this.form.action=this.form.recent.value;this.form.submit()')
+         .'</form>'
+         .&Apache::lonmenu::constspaceform()
+         .'</div>';
+     return $output;
  }
  ###############################################
- Line 2058  sub designparm {
+ Line 5055  sub designparm {
  =back
- =head1 HTTP Helpers
+ =head1 HTML Helpers
  =over 4
- Line 2083  Inputs:
+ Line 5080  Inputs:
  =item * $forcereg, if page should register as content page (relevant for
              text interface only)
+ =item * $no_nav_bar, if true, keep the 'what is this' info but remove the
+                      navigational links
+ =item * $bgcolor, used to override the bgcolor on a webpage to a specific value
+ =item * $args, optional argument valid values are
+             no_auto_mt_title -> prevents &mt()ing the title arg
+             inherit_jsmath -> when creating popup window in a page,
+                               should it have jsmath forced on by the
+                               current page
+ =item * $advtoolsref, optional argument, ref to an array containing
+             inlineremote items to be added in "Functions" menu below
+             breadcrumbs.
  =back
  Returns: A uniform header for LON-CAPA web pages.
- Line 2093  other decorations will be returned.
+ Line 5105  other decorations will be returned.
  =cut
  sub bodytag {
-     my ($title,$function,$addentries,$bodyonly,$domain,$forcereg)=@_;
+     my ($title,$function,$addentries,$bodyonly,$domain,$forcereg,
-     $title=&mt($title);
+         $no_nav_bar,$bgcolor,$args,$advtoolsref)=@_;
-     unless ($function) {
- 	$function='student';
+     my $public;
-         if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
+     if ((($env{'user.name'} eq 'public') && ($env{'user.domain'} eq 'public'))
- 	    $function='coordinator';
+         || ($env{'user.name'} eq '') && ($env{'user.domain'} eq '')) {
-         }
+         $public = 1;
- 	if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
+     }
-             $function='admin';
+     if (!$args->{'no_auto_mt_title'}) { $title = &mt($title); }
-         }
-         if (($ENV{'request.role'}=~/^(au|ca)/) ||
+     $function = &get_users_function() if (!$function);
-             ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
+     my $img =    &designparm($function.'.img',$domain);
-             $function='author';
+     my $font =   &designparm($function.'.font',$domain);
-         }
+     my $pgbg   = $bgcolor || &designparm($function.'.pgbg',$domain);
-     }
-     my $img=&designparm($function.'.img',$domain);
+     my %design = ( 'style'   => 'margin-top: 0',
-     my $pgbg=&designparm($function.'.pgbg',$domain);
+ 		   'bgcolor' => $pgbg,
-     my $tabbg=&designparm($function.'.tabbg',$domain);
+ 		   'text'    => $font,
-     my $font=&designparm($function.'.font',$domain);
+                    'alink'   => &designparm($function.'.alink',$domain),
-     my $link=&designparm($function.'.link',$domain);
+ 		   'vlink'   => &designparm($function.'.vlink',$domain),
-     my $alink=&designparm($function.'.alink',$domain);
+ 		   'link'    => &designparm($function.'.link',$domain),);
-     my $vlink=&designparm($function.'.vlink',$domain);
+     @design{keys(%$addentries)} = @$addentries{keys(%$addentries)};
-     my $sidebg=&designparm($function.'.sidebg',$domain);
- # Accessibility font enhance
-     unless ($addentries) { $addentries=''; }
-     my $addstyle='';
-     if ($ENV{'browser.fontenhance'} eq 'on') {
- 	$addstyle=' font-size: x-large;';
-     }
   # role and realm
-     my ($role,$realm)
+     my ($role,$realm) = split(/\./,$env{'request.role'},2);
-        =&Apache::lonnet::plaintext((split(/\./,$ENV{'request.role'}))[0]);
+     if ($role  eq 'ca') {
+         my ($rdom,$rname) = ($realm =~ m{^/($match_domain)/($match_username)$});
+         $realm = &plainname($rname,$rdom);
+     }
  # realm
-     if ($ENV{'request.course.id'}) {
+     if ($env{'request.course.id'}) {
- 	$realm=
+         if ($env{'request.role'} !~ /^cr/) {
-          $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
+             $role = &Apache::lonnet::plaintext($role,&course_type());
-     }
+         }
-     unless ($realm) { $realm='&nbsp;'; }
+         if ($env{'request.course.sec'}) {
- # Set messages
+             $role .= ('&nbsp;'x2).'-&nbsp;'.&mt('section:').'&nbsp;'.$env{'request.course.sec'};
-     my $messages=&domainlogo($domain);
+         }
- # Port for miniserver
+ 	$realm = $env{'course.'.$env{'request.course.id'}.'.description'};
-     my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
+     } else {
-     if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
+         $role = &Apache::lonnet::plaintext($role);
+     }
+     if (!$realm) { $realm='&nbsp;'; }
+     my $extra_body_attr = &make_attr_string($forcereg,\%design);
  # construct main body tag
-     my $bodytag = <<END;
+     my $bodytag = "<body $extra_body_attr>".
- <style>
+ 	&Apache::lontexconvert::init_math_support($args->{'inherit_jsmath'});
- h1, h2, h3, th { font-family: Arial, Helvetica, sans-serif }
- a:hover { color: black; background: yellow }
+     &get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['inhibitmenu']);
- a:focus { color: red; background: yellow }
- </style>
+     if (($bodyonly) || ($no_nav_bar) || ($env{'form.inhibitmenu'} eq 'yes')) {
- <body bgcolor="$pgbg" text="$font" alink="$alink" vlink="$vlink" link="$link"
- style="margin-top: 0px;$addstyle" $addentries>
- END
-     my $upperleft='<img src="http://'.$ENV{'HTTP_HOST'}.':'.
-                    $lonhttpdPort.$img.'" alt="'.$function.'" />';
-     if ($bodyonly) {
          return $bodytag;
-     } elsif ($ENV{'browser.interface'} eq 'textual') {
- # Accessibility
-         return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',
-                                                       $forcereg).
-                '<h1>LON-CAPA: '.$title.'</h1>';
-     } elsif ($ENV{'environment.remote'} eq 'off') {
- # No Remote
-         return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',
-                                                       $forcereg).
-       '<table bgcolor="'.$pgbg.'" width="100%" border="0" cellspacing="3" cellpadding="3"><tr><td bgcolor="'.$tabbg.'"><font face="Arial, Helvetica, sans-serif" size="+3" color="'.$font.'"><b>'.$title.
- '</b></font></td></tr></table>';
      }
- #
+     if ($public) {
- # Top frame rendering, Remote is up
+ 	undef($role);
- #
+     }
-     return(<<ENDBODY);
- $bodytag
+     my $titleinfo = '<h1>'.$title.'</h1>';
- <table width="100%" cellspacing="0" border="0" cellpadding="0">
+     #
- <tr><td bgcolor="$sidebg">
+     # Extra info if you are the DC
- $upperleft</td>
+     my $dc_info = '';
- <td bgcolor="$sidebg" align="right">$messages&nbsp;</td>
+     if ($env{'user.adv'} && exists($env{'user.role.dc./'.
- </tr>
+                         $env{'course.'.$env{'request.course.id'}.
- <tr>
+                                  '.domain'}.'/'})) {
- <td rowspan="3" bgcolor="$tabbg">
+         my $cid = $env{'request.course.id'};
- &nbsp;<font size="5" face="Arial, Helvetica, sans-serif"><b>$title</b></font>
+         $dc_info = $cid.' '.$env{'course.'.$cid.'.internal.coursecode'};
- <td bgcolor="$tabbg" align="right">
+         $dc_info =~ s/\s+$//;
- <font size="2" face="Arial, Helvetica, sans-serif">
+     }
-     $ENV{'environment.firstname'}
-     $ENV{'environment.middlename'}
+     $role = '<span class="LC_nobreak">('.$role.')</span>' if $role;
-     $ENV{'environment.lastname'}
-     $ENV{'environment.generation'}
+         if ($env{'request.state'} eq 'construct') { $forcereg=1; }
-     </font>&nbsp;
- </td>
+         #    if ($env{'request.state'} eq 'construct') {
- </tr>
+         #        $titleinfo = &CSTR_pageheader(); #FIXME: Will be removed once all scripts have their own calls
- <tr><td bgcolor="$tabbg" align="right">
+         #    }
- <font size="2" face="Arial, Helvetica, sans-serif">$role</font>&nbsp;
- </td></tr>
+         $bodytag .= Apache::lonhtmlcommon::scripttag(
- <tr>
+             Apache::lonmenu::utilityfunctions(), 'start');
- <td bgcolor="$tabbg" align="right"><font size="2" face="Arial, Helvetica, sans-serif">$realm</font>&nbsp;</td></tr>
- </table><br>
+         my ($left,$right) = Apache::lonmenu::primary_menu();
- ENDBODY
+         if ($env{'request.noversionuri'} =~ m{^/res/adm/pages/}) {
+              if ($dc_info) {
+                  $dc_info = qq|<span class="LC_cusr_subheading">$dc_info</span>|;
+              }
+              $bodytag .= qq|<div id="LC_nav_bar">$left $role<br />
+                 <em>$realm</em> $dc_info</div>|;
+             return $bodytag;
+         }
+         unless ($env{'request.symb'} =~ m/\.page___\d+___/) {
+             $bodytag .= qq|<div id="LC_nav_bar">$left $role</div>|;
+         }
+         $bodytag .= $right;
+         if ($dc_info) {
+             $dc_info = &dc_courseid_toggle($dc_info);
+         }
+         $bodytag .= qq|<div id="LC_realm">$realm $dc_info</div>|;
+         #don't show menus for public users
+         if (!$public){
+             $bodytag .= Apache::lonmenu::secondary_menu();
+             $bodytag .= Apache::lonmenu::serverform();
+             $bodytag .= Apache::lonhtmlcommon::scripttag('', 'end');
+             if ($env{'request.state'} eq 'construct') {
+                 $bodytag .= &Apache::lonmenu::innerregister($forcereg,
+                                 $args->{'bread_crumbs'});
+             } elsif ($forcereg) {
+                 $bodytag .= &Apache::lonmenu::innerregister($forcereg,undef,
+                                                             $args->{'group'});
+             } else {
+                 $bodytag .=
+                     &Apache::lonmenu::prepare_functions($env{'request.noversionuri'},
+                                                         $forcereg,$args->{'group'},
+                                                         $args->{'bread_crumbs'},
+                                                         $advtoolsref);
+             }
+         }else{
+             # this is to seperate menu from content when there's no secondary
+             # menu. Especially needed for public accessible ressources.
+             $bodytag .= '<hr style="clear:both" />';
+             $bodytag .= Apache::lonhtmlcommon::scripttag('', 'end');
+         }
+         return $bodytag;
  }
+ sub dc_courseid_toggle {
+     my ($dc_info) = @_;
+     return ' <span id="dccidtext" class="LC_cusr_subheading LC_nobreak">'.
+            '<a href="javascript:showCourseID();" class="LC_menubuttons_link">'.
+            &mt('(More ...)').'</a></span>'.
+            '<div id="dccid" class="LC_dccid">'.$dc_info.'</div>';
+ }
+ sub make_attr_string {
+     my ($register,$attr_ref) = @_;
+     if ($attr_ref && !ref($attr_ref)) {
+ 	die("addentries Must be a hash ref ".
+ 	    join(':',caller(1))." ".
+ 	    join(':',caller(0))." ");
+     }
+     if ($register) {
+ 	my ($on_load,$on_unload);
+ 	foreach my $key (keys(%{$attr_ref})) {
+ 	    if      (lc($key) eq 'onload') {
+ 		$on_load.=$attr_ref->{$key}.';';
+ 		delete($attr_ref->{$key});
+ 	    } elsif (lc($key) eq 'onunload') {
+ 		$on_unload.=$attr_ref->{$key}.';';
+ 		delete($attr_ref->{$key});
+ 	    }
+ 	}
+ 	$attr_ref->{'onload'}  = $on_load;
+ 	$attr_ref->{'onunload'}= $on_unload;
+     }
+     my $attr_string;
+     foreach my $attr (keys(%$attr_ref)) {
+ 	$attr_string .= " $attr=\"".$attr_ref->{$attr}.'" ';
+     }
+     return $attr_string;
+ }
+ ###############################################
  ###############################################
- sub get_posted_cgi {
+ =pod
-     my $r=shift;
+ =item * &endbodytag()
+ Returns a uniform footer for LON-CAPA web pages.
+ Inputs: 1 - optional reference to an args hash
+ If in the hash, key for noredirectlink has a value which evaluates to true,
+ a 'Continue' link is not displayed if the page contains an
+ internal redirect in the <head></head> section,
+ i.e., $env{'internal.head.redirect'} exists
+ =cut
+ sub endbodytag {
+     my ($args) = @_;
+     my $endbodytag;
+     unless ((ref($args) eq 'HASH') && ($args->{'notbody'})) {
+         $endbodytag='</body>';
+     }
+     $endbodytag=&Apache::lontexconvert::jsMath_process()."\n".$endbodytag;
+     if ( exists( $env{'internal.head.redirect'} ) ) {
+         if (!(ref($args) eq 'HASH' && $args->{'noredirectlink'})) {
+ 	    $endbodytag=
+ 	        "<br /><a href=\"$env{'internal.head.redirect'}\">".
+ 	        &mt('Continue').'</a>'.
+ 	        $endbodytag;
+         }
+     }
+     return $endbodytag;
+ }
+ =pod
+ =item * &standard_css()
+ Returns a style sheet
+ Inputs: (all optional)
+             domain         -> force to color decorate a page for a specific
+                                domain
+             function       -> force usage of a specific rolish color scheme
+             bgcolor        -> override the default page bgcolor
+ =cut
+ sub standard_css {
+     my ($function,$domain,$bgcolor) = @_;
+     $function  = &get_users_function() if (!$function);
+     my $img    = &designparm($function.'.img',   $domain);
+     my $tabbg  = &designparm($function.'.tabbg', $domain);
+     my $font   = &designparm($function.'.font',  $domain);
+     my $fontmenu = &designparm($function.'.fontmenu', $domain);
+ #second colour for later usage
+     my $sidebg = &designparm($function.'.sidebg',$domain);
+     my $pgbg_or_bgcolor =
+ 	         $bgcolor ||
+ 	         &designparm($function.'.pgbg',  $domain);
+     my $pgbg   = &designparm($function.'.pgbg',  $domain);
+     my $alink  = &designparm($function.'.alink', $domain);
+     my $vlink  = &designparm($function.'.vlink', $domain);
+     my $link   = &designparm($function.'.link',  $domain);
+     my $sans                 = 'Verdana,Arial,Helvetica,sans-serif';
+     my $mono                 = 'monospace';
+     my $data_table_head      = $sidebg;
+     my $data_table_light     = '#FAFAFA';
+     my $data_table_dark      = '#E0E0E0';
+     my $data_table_darker    = '#CCCCCC';
+     my $data_table_highlight = '#FFFF00';
+     my $mail_new             = '#FFBB77';
+     my $mail_new_hover       = '#DD9955';
+     my $mail_read            = '#BBBB77';
+     my $mail_read_hover      = '#999944';
+     my $mail_replied         = '#AAAA88';
+     my $mail_replied_hover   = '#888855';
+     my $mail_other           = '#99BBBB';
+     my $mail_other_hover     = '#669999';
+     my $table_header         = '#DDDDDD';
+     my $feedback_link_bg     = '#BBBBBB';
+     my $lg_border_color      = '#C8C8C8';
+     my $button_hover         = '#BF2317';
+     my $border = ($env{'browser.type'} eq 'explorer' ||
+       $env{'browser.type'} eq 'safari'     ) ? '0 2px 0 2px'
+                                              : '0 3px 0 4px';
+     return <<END;
+ /* needed for iframe to allow 100% height in FF */
+ body, html {
+     margin: 0;
+     padding: 0 0.5%;
+     height: 99%; /* to avoid scrollbars */
+ }
+ body {
+   font-family: $sans;
+   line-height:130%;
+   font-size:0.83em;
+   color:$font;
+ }
+ a:focus,
+ a:focus img {
+   color: red;
+ }
+ form, .inline {
+   display: inline;
+ }
+ .LC_right {
+   text-align:right;
+ }
+ .LC_middle {
+   vertical-align:middle;
+ }
+ .LC_floatleft {
+   float: left;
+ }
+ .LC_floatright {
+   float: right;
+ }
+ .LC_400Box {
+   width:400px;
+ }
+ .LC_iframecontainer {
+     width: 98%;
+     margin: 0;
+     position: fixed;
+     top: 8.5em;
+     bottom: 0;
+ }
+ .LC_iframecontainer iframe{
+     border: none;
+     width: 100%;
+     height: 100%;
+ }
+ .LC_filename {
+   font-family: $mono;
+   white-space:pre;
+   font-size: 120%;
+ }
+ .LC_fileicon {
+   border: none;
+   height: 1.3em;
+   vertical-align: text-bottom;
+   margin-right: 0.3em;
+   text-decoration:none;
+ }
+ .LC_setting {
+   text-decoration:underline;
+ }
+ .LC_error {
+   color: red;
+ }
+ .LC_warning {
+   color: darkorange;
+ }
+ .LC_diff_removed {
+   color: red;
+ }
+ .LC_info,
+ .LC_success,
+ .LC_diff_added {
+   color: green;
+ }
+ div.LC_confirm_box {
+   background-color: #FAFAFA;
+   border: 1px solid $lg_border_color;
+   margin-right: 0;
+   padding: 5px;
+ }
+ div.LC_confirm_box .LC_error img,
+ div.LC_confirm_box .LC_success img {
+   vertical-align: middle;
+ }
+ .LC_icon {
+   border: none;
+   vertical-align: middle;
+ }
+ .LC_docs_spacer {
+   width: 25px;
+   height: 1px;
+   border: none;
+ }
+ .LC_internal_info {
+   color: #999999;
+ }
+ .LC_discussion {
+   background: $data_table_dark;
+   border: 1px solid black;
+   margin: 2px;
+ }
+ .LC_disc_action_left {
+   background: $sidebg;
+   text-align: left;
+   padding: 4px;
+   margin: 2px;
+ }
+ .LC_disc_action_right {
+   background: $sidebg;
+   text-align: right;
+   padding: 4px;
+   margin: 2px;
+ }
+ .LC_disc_new_item {
+   background: white;
+   border: 2px solid red;
+   margin: 4px;
+   padding: 4px;
+ }
+ .LC_disc_old_item {
+   background: white;
+   margin: 4px;
+   padding: 4px;
+ }
+ table.LC_pastsubmission {
+   border: 1px solid black;
+   margin: 2px;
+ }
+ table#LC_menubuttons {
+   width: 100%;
+   background: $pgbg;
+   border: 2px;
+   border-collapse: separate;
+   padding: 0;
+ }
+ table#LC_title_bar a {
+   color: $fontmenu;
+ }
+ table#LC_title_bar {
+   clear: both;
+   display: none;
+ }
+ table#LC_title_bar,
+ table.LC_breadcrumbs, /* obsolete? */
+ table#LC_title_bar.LC_with_remote {
+   width: 100%;
+   border-color: $pgbg;
+   border-style: solid;
+   border-width: $border;
+   background: $pgbg;
+   color: $fontmenu;
+   border-collapse: collapse;
+   padding: 0;
+   margin: 0;
+ }
+ ul.LC_breadcrumb_tools_outerlist {
+     margin: 0;
+     padding: 0;
+     position: relative;
+     list-style: none;
+ }
+ ul.LC_breadcrumb_tools_outerlist li {
+     display: inline;
+ }
+ .LC_breadcrumb_tools_navigation {
+     padding: 0;
+     margin: 0;
+     float: left;
+ }
+ .LC_breadcrumb_tools_tools {
+     padding: 0;
+     margin: 0;
+     float: right;
+ }
+ table#LC_title_bar td {
+   background: $tabbg;
+ }
+ table#LC_menubuttons img {
+   border: none;
+ }
+ .LC_breadcrumbs_component {
+   float: right;
+   margin: 0 1em;
+ }
+ .LC_breadcrumbs_component img {
+   vertical-align: middle;
+ }
+ td.LC_table_cell_checkbox {
+   text-align: center;
+ }
+ .LC_fontsize_small {
+   font-size: 70%;
+ }
+ #LC_breadcrumbs {
+   clear:both;
+   background: $sidebg;
+   border-bottom: 1px solid $lg_border_color;
+   line-height: 2.5em;
+   overflow: hidden;
+   margin: 0;
+   padding: 0;
+   text-align: left;
+ }
+ .LC_head_subbox, .LC_actionbox {
+   clear:both;
+   background: #F8F8F8; /* $sidebg; */
+   border: 1px solid $sidebg;
+   margin: 0 0 10px 0;
+   padding: 3px;
+   text-align: left;
+ }
+ .LC_fontsize_medium {
+   font-size: 85%;
+ }
+ .LC_fontsize_large {
+   font-size: 120%;
+ }
+ .LC_menubuttons_inline_text {
+   color: $font;
+   font-size: 90%;
+   padding-left:3px;
+ }
+ .LC_menubuttons_inline_text img{
+   vertical-align: middle;
+ }
+ li.LC_menubuttons_inline_text img {
+   cursor:pointer;
+   text-decoration: none;
+ }
+ .LC_menubuttons_link {
+   text-decoration: none;
+ }
+ .LC_menubuttons_category {
+   color: $font;
+   background: $pgbg;
+   font-size: larger;
+   font-weight: bold;
+ }
+ td.LC_menubuttons_text {
+   color: $font;
+ }
+ .LC_current_location {
+   background: $tabbg;
+ }
+ table.LC_data_table {
+   border: 1px solid #000000;
+   border-collapse: separate;
+   border-spacing: 1px;
+   background: $pgbg;
+ }
+ .LC_data_table_dense {
+   font-size: small;
+ }
+ table.LC_nested_outer {
+   border: 1px solid #000000;
+   border-collapse: collapse;
+   border-spacing: 0;
+   width: 100%;
+ }
+ table.LC_innerpickbox,
+ table.LC_nested {
+   border: none;
+   border-collapse: collapse;
+   border-spacing: 0;
+   width: 100%;
+ }
+ table.LC_data_table tr th,
+ table.LC_calendar tr th,
+ table.LC_prior_tries tr th,
+ table.LC_innerpickbox tr th {
+   font-weight: bold;
+   background-color: $data_table_head;
+   color:$fontmenu;
+   font-size:90%;
+ }
+ table.LC_innerpickbox tr th,
+ table.LC_innerpickbox tr td {
+   vertical-align: top;
+ }
+ table.LC_data_table tr.LC_info_row > td {
+   background-color: #CCCCCC;
+   font-weight: bold;
+   text-align: left;
+ }
+ table.LC_data_table tr.LC_odd_row > td {
+   background-color: $data_table_light;
+   padding: 2px;
+   vertical-align: top;
+ }
+ table.LC_pick_box tr > td.LC_odd_row {
+   background-color: $data_table_light;
+   vertical-align: top;
+ }
+ table.LC_data_table tr.LC_even_row > td {
+   background-color: $data_table_dark;
+   padding: 2px;
+   vertical-align: top;
+ }
+ table.LC_pick_box tr > td.LC_even_row {
+   background-color: $data_table_dark;
+   vertical-align: top;
+ }
+ table.LC_data_table tr.LC_data_table_highlight td {
+   background-color: $data_table_darker;
+ }
+ table.LC_data_table tr td.LC_leftcol_header {
+   background-color: $data_table_head;
+   font-weight: bold;
+ }
+ table.LC_data_table tr.LC_empty_row td,
+ table.LC_nested tr.LC_empty_row td {
+   font-weight: bold;
+   font-style: italic;
+   text-align: center;
+   padding: 8px;
+ }
+ table.LC_data_table tr.LC_empty_row td,
+ table.LC_data_table tr.LC_footer_row td {
+   background-color: $sidebg;
+ }
+ table.LC_nested tr.LC_empty_row td {
+   background-color: #FFFFFF;
+ }
+ table.LC_caption {
+ }
+ table.LC_nested tr.LC_empty_row td {
+   padding: 4ex
+ }
+ table.LC_nested_outer tr th {
+   font-weight: bold;
+   color:$fontmenu;
+   background-color: $data_table_head;
+   font-size: small;
+   border-bottom: 1px solid #000000;
+ }
+ table.LC_nested_outer tr td.LC_subheader {
+   background-color: $data_table_head;
+   font-weight: bold;
+   font-size: small;
+   border-bottom: 1px solid #000000;
+   text-align: right;
+ }
+ table.LC_nested tr.LC_info_row td {
+   background-color: #CCCCCC;
+   font-weight: bold;
+   font-size: small;
+   text-align: center;
+ }
+ table.LC_nested tr.LC_info_row td.LC_left_item,
+ table.LC_nested_outer tr th.LC_left_item {
+   text-align: left;
+ }
+ table.LC_nested td {
+   background-color: #FFFFFF;
+   font-size: small;
+ }
+ table.LC_nested_outer tr th.LC_right_item,
+ table.LC_nested tr.LC_info_row td.LC_right_item,
+ table.LC_nested tr.LC_odd_row td.LC_right_item,
+ table.LC_nested tr td.LC_right_item {
+   text-align: right;
+ }
+ table.LC_nested tr.LC_odd_row td {
+   background-color: #EEEEEE;
+ }
+ table.LC_createuser {
+ }
+ table.LC_createuser tr.LC_section_row td {
+   font-size: small;
+ }
+ table.LC_createuser tr.LC_info_row td  {
+   background-color: #CCCCCC;
+   font-weight: bold;
+   text-align: center;
+ }
+ table.LC_calendar {
+   border: 1px solid #000000;
+   border-collapse: collapse;
+   width: 98%;
+ }
+ table.LC_calendar_pickdate {
+   font-size: xx-small;
+ }
+ table.LC_calendar tr td {
+   border: 1px solid #000000;
+   vertical-align: top;
+   width: 14%;
+ }
+ table.LC_calendar tr td.LC_calendar_day_empty {
+   background-color: $data_table_dark;
+ }
+ table.LC_calendar tr td.LC_calendar_day_current {
+   background-color: $data_table_highlight;
+ }
+ table.LC_data_table tr td.LC_mail_new {
+   background-color: $mail_new;
+ }
+ table.LC_data_table tr.LC_mail_new:hover {
+   background-color: $mail_new_hover;
+ }
+ table.LC_data_table tr td.LC_mail_read {
+   background-color: $mail_read;
+ }
+ /*
+ table.LC_data_table tr.LC_mail_read:hover {
+   background-color: $mail_read_hover;
+ }
+ */
+ table.LC_data_table tr td.LC_mail_replied {
+   background-color: $mail_replied;
+ }
+ /*
+ table.LC_data_table tr.LC_mail_replied:hover {
+   background-color: $mail_replied_hover;
+ }
+ */
+ table.LC_data_table tr td.LC_mail_other {
+   background-color: $mail_other;
+ }
+ /*
+ table.LC_data_table tr.LC_mail_other:hover {
+   background-color: $mail_other_hover;
+ }
+ */
+ table.LC_data_table tr > td.LC_browser_file,
+ table.LC_data_table tr > td.LC_browser_file_published {
+   background: #AAEE77;
+ }
+ table.LC_data_table tr > td.LC_browser_file_locked,
+ table.LC_data_table tr > td.LC_browser_file_unpublished {
+   background: #FFAA99;
+ }
+ table.LC_data_table tr > td.LC_browser_file_obsolete {
+   background: #888888;
+ }
+ table.LC_data_table tr > td.LC_browser_file_modified,
+ table.LC_data_table tr > td.LC_browser_file_metamodified {
+   background: #F8F866;
+ }
+ table.LC_data_table tr.LC_browser_folder > td {
+   background: #E0E8FF;
+ }
+ table.LC_data_table tr > td.LC_roles_is {
+   /* background: #77FF77; */
+ }
+ table.LC_data_table tr > td.LC_roles_future {
+   border-right: 8px solid #FFFF77;
+ }
+ table.LC_data_table tr > td.LC_roles_will {
+   border-right: 8px solid #FFAA77;
+ }
+ table.LC_data_table tr > td.LC_roles_expired {
+   border-right: 8px solid #FF7777;
+ }
+ table.LC_data_table tr > td.LC_roles_will_not {
+   border-right: 8px solid #AAFF77;
+ }
+ table.LC_data_table tr > td.LC_roles_selected {
+   border-right: 8px solid #11CC55;
+ }
+ span.LC_current_location {
+   font-size:larger;
+   background: $pgbg;
+ }
+ span.LC_current_nav_location {
+   font-weight:bold;
+   background: $sidebg;
+ }
+ span.LC_parm_menu_item {
+   font-size: larger;
+ }
+ span.LC_parm_scope_all {
+   color: red;
+ }
+ span.LC_parm_scope_folder {
+   color: green;
+ }
+ span.LC_parm_scope_resource {
+   color: orange;
+ }
+ span.LC_parm_part {
+   color: blue;
+ }
+ span.LC_parm_folder,
+ span.LC_parm_symb {
+   font-size: x-small;
+   font-family: $mono;
+   color: #AAAAAA;
+ }
+ ul.LC_parm_parmlist li {
+   display: inline-block;
+   padding: 0.3em 0.8em;
+   vertical-align: top;
+   width: 150px;
+   border-top:1px solid $lg_border_color;
+ }
+ td.LC_parm_overview_level_menu,
+ td.LC_parm_overview_map_menu,
+ td.LC_parm_overview_parm_selectors,
+ td.LC_parm_overview_restrictions  {
+   border: 1px solid black;
+   border-collapse: collapse;
+ }
+ table.LC_parm_overview_restrictions td {
+   border-width: 1px 4px 1px 4px;
+   border-style: solid;
+   border-color: $pgbg;
+   text-align: center;
+ }
+ table.LC_parm_overview_restrictions th {
+   background: $tabbg;
+   border-width: 1px 4px 1px 4px;
+   border-style: solid;
+   border-color: $pgbg;
+ }
+ table#LC_helpmenu {
+   border: none;
+   height: 55px;
+   border-spacing: 0;
+ }
+ table#LC_helpmenu fieldset legend {
+   font-size: larger;
+ }
+ table#LC_helpmenu_links {
+   width: 100%;
+   border: 1px solid black;
+   background: $pgbg;
+   padding: 0;
+   border-spacing: 1px;
+ }
+ table#LC_helpmenu_links tr td {
+   padding: 1px;
+   background: $tabbg;
+   text-align: center;
+   font-weight: bold;
+ }
+ table#LC_helpmenu_links a:link,
+ table#LC_helpmenu_links a:visited,
+ table#LC_helpmenu_links a:active {
+   text-decoration: none;
+   color: $font;
+ }
+ table#LC_helpmenu_links a:hover {
+   text-decoration: underline;
+   color: $vlink;
+ }
+ .LC_chrt_popup_exists {
+   border: 1px solid #339933;
+   margin: -1px;
+ }
+ .LC_chrt_popup_up {
+   border: 1px solid yellow;
+   margin: -1px;
+ }
+ .LC_chrt_popup {
+   border: 1px solid #8888FF;
+   background: #CCCCFF;
+ }
+ table.LC_pick_box {
+   border-collapse: separate;
+   background: white;
+   border: 1px solid black;
+   border-spacing: 1px;
+ }
+ table.LC_pick_box td.LC_pick_box_title {
+   background: $sidebg;
+   font-weight: bold;
+   text-align: left;
+   vertical-align: top;
+   width: 184px;
+   padding: 8px;
+ }
+ table.LC_pick_box td.LC_pick_box_value {
+   text-align: left;
+   padding: 8px;
+ }
+ table.LC_pick_box td.LC_pick_box_select {
+   text-align: left;
+   padding: 8px;
+ }
+ table.LC_pick_box td.LC_pick_box_separator {
+   padding: 0;
+   height: 1px;
+   background: black;
+ }
+ table.LC_pick_box td.LC_pick_box_submit {
+   text-align: right;
+ }
+ table.LC_pick_box td.LC_evenrow_value {
+   text-align: left;
+   padding: 8px;
+   background-color: $data_table_light;
+ }
+ table.LC_pick_box td.LC_oddrow_value {
+   text-align: left;
+   padding: 8px;
+   background-color: $data_table_light;
+ }
+ span.LC_helpform_receipt_cat {
+   font-weight: bold;
+ }
+ table.LC_group_priv_box {
+   background: white;
+   border: 1px solid black;
+   border-spacing: 1px;
+ }
+ table.LC_group_priv_box td.LC_pick_box_title {
+   background: $tabbg;
+   font-weight: bold;
+   text-align: right;
+   width: 184px;
+ }
+ table.LC_group_priv_box td.LC_groups_fixed {
+   background: $data_table_light;
+   text-align: center;
+ }
+ table.LC_group_priv_box td.LC_groups_optional {
+   background: $data_table_dark;
+   text-align: center;
+ }
+ table.LC_group_priv_box td.LC_groups_functionality {
+   background: $data_table_darker;
+   text-align: center;
+   font-weight: bold;
+ }
+ table.LC_group_priv td {
+   text-align: left;
+   padding: 0;
+ }
+ .LC_navbuttons {
+   margin: 2ex 0ex 2ex 0ex;
+ }
+ .LC_topic_bar {
+   font-weight: bold;
+   background: $tabbg;
+   margin: 1em 0em 1em 2em;
+   padding: 3px;
+   font-size: 1.2em;
+ }
+ .LC_topic_bar span {
+   left: 0.5em;
+   position: absolute;
+   vertical-align: middle;
+   font-size: 1.2em;
+ }
+ table.LC_course_group_status {
+   margin: 20px;
+ }
+ table.LC_status_selector td {
+   vertical-align: top;
+   text-align: center;
+   padding: 4px;
+ }
+ div.LC_feedback_link {
+   clear: both;
+   background: $sidebg;
+   width: 100%;
+   padding-bottom: 10px;
+   border: 1px $tabbg solid;
+   height: 22px;
+   line-height: 22px;
+   padding-top: 5px;
+ }
+ div.LC_feedback_link img {
+   height: 22px;
+   vertical-align:middle;
+ }
+ div.LC_feedback_link a {
+   text-decoration: none;
+ }
+ div.LC_comblock {
+   display:inline;
+   color:$font;
+   font-size:90%;
+ }
+ div.LC_feedback_link div.LC_comblock {
+   padding-left:5px;
+ }
+ div.LC_feedback_link div.LC_comblock a {
+   color:$font;
+ }
+ span.LC_feedback_link {
+   /* background: $feedback_link_bg; */
+   font-size: larger;
+ }
+ span.LC_message_link {
+   /* background: $feedback_link_bg; */
+   font-size: larger;
+   position: absolute;
+   right: 1em;
+ }
+ table.LC_prior_tries {
+   border: 1px solid #000000;
+   border-collapse: separate;
+   border-spacing: 1px;
+ }
+ table.LC_prior_tries td {
+   padding: 2px;
+ }
+ .LC_answer_correct {
+   background: lightgreen;
+   color: darkgreen;
+   padding: 6px;
+ }
+ .LC_answer_charged_try {
+   background: #FFAAAA;
+   color: darkred;
+   padding: 6px;
+ }
+ .LC_answer_not_charged_try,
+ .LC_answer_no_grade,
+ .LC_answer_late {
+   background: lightyellow;
+   color: black;
+   padding: 6px;
+ }
+ .LC_answer_previous {
+   background: lightblue;
+   color: darkblue;
+   padding: 6px;
+ }
+ .LC_answer_no_message {
+   background: #FFFFFF;
+   color: black;
+   padding: 6px;
+ }
+ .LC_answer_unknown {
+   background: orange;
+   color: black;
+   padding: 6px;
+ }
+ span.LC_prior_numerical,
+ span.LC_prior_string,
+ span.LC_prior_custom,
+ span.LC_prior_reaction,
+ span.LC_prior_math {
+   font-family: $mono;
+   white-space: pre;
+ }
+ span.LC_prior_string {
+   font-family: $mono;
+   white-space: pre;
+ }
+ table.LC_prior_option {
+   width: 100%;
+   border-collapse: collapse;
+ }
+ table.LC_prior_rank,
+ table.LC_prior_match {
+   border-collapse: collapse;
+ }
+ table.LC_prior_option tr td,
+ table.LC_prior_rank tr td,
+ table.LC_prior_match tr td {
+   border: 1px solid #000000;
+ }
+ .LC_nobreak {
+   white-space: nowrap;
+ }
+ span.LC_cusr_emph {
+   font-style: italic;
+ }
+ span.LC_cusr_subheading {
+   font-weight: normal;
+   font-size: 85%;
+ }
+ div.LC_docs_entry_move {
+   border: 1px solid #BBBBBB;
+   background: #DDDDDD;
+   width: 22px;
+   padding: 1px;
+   margin: 0;
+ }
+ table.LC_data_table tr > td.LC_docs_entry_commands,
+ table.LC_data_table tr > td.LC_docs_entry_parameter {
+   font-size: x-small;
+ }
+ .LC_docs_entry_parameter {
+   white-space: nowrap;
+ }
+ .LC_docs_copy {
+   color: #000099;
+ }
+ .LC_docs_cut {
+   color: #550044;
+ }
+ .LC_docs_rename {
+   color: #009900;
+ }
+ .LC_docs_remove {
+   color: #990000;
+ }
+ .LC_docs_reinit_warn,
+ .LC_docs_ext_edit {
+   font-size: x-small;
+ }
+ table.LC_docs_adddocs td,
+ table.LC_docs_adddocs th {
+   border: 1px solid #BBBBBB;
+   padding: 4px;
+   background: #DDDDDD;
+ }
+ table.LC_sty_begin {
+   background: #BBFFBB;
+ }
+ table.LC_sty_end {
+   background: #FFBBBB;
+ }
+ table.LC_double_column {
+   border-width: 0;
+   border-collapse: collapse;
+   width: 100%;
+   padding: 2px;
+ }
+ table.LC_double_column tr td.LC_left_col {
+   top: 2px;
+   left: 2px;
+   width: 47%;
+   vertical-align: top;
+ }
+ table.LC_double_column tr td.LC_right_col {
+   top: 2px;
+   right: 2px;
+   width: 47%;
+   vertical-align: top;
+ }
+ div.LC_left_float {
+   float: left;
+   padding-right: 5%;
+   padding-bottom: 4px;
+ }
+ div.LC_clear_float_header {
+   padding-bottom: 2px;
+ }
+ div.LC_clear_float_footer {
+   padding-top: 10px;
+   clear: both;
+ }
+ div.LC_grade_show_user {
+ /*  border-left: 5px solid $sidebg; */
+   border-top: 5px solid #000000;
+   margin: 50px 0 0 0;
+   padding: 15px 0 5px 10px;
+ }
+ div.LC_grade_show_user_odd_row {
+ /*  border-left: 5px solid #000000; */
+ }
+ div.LC_grade_show_user div.LC_Box {
+   margin-right: 50px;
+ }
+ div.LC_grade_submissions,
+ div.LC_grade_message_center,
+ div.LC_grade_info_links {
+   margin: 5px;
+   width: 99%;
+   background: #FFFFFF;
+ }
+ div.LC_grade_submissions_header,
+ div.LC_grade_message_center_header {
+   font-weight: bold;
+   font-size: large;
+ }
+ div.LC_grade_submissions_body,
+ div.LC_grade_message_center_body {
+   border: 1px solid black;
+   width: 99%;
+   background: #FFFFFF;
+ }
+ table.LC_scantron_action {
+   width: 100%;
+ }
+ table.LC_scantron_action tr th {
+   font-weight:bold;
+   font-style:normal;
+ }
+ .LC_edit_problem_header,
+ div.LC_edit_problem_footer {
+   font-weight: normal;
+   font-size:  medium;
+   margin: 2px;
+   background-color: $sidebg;
+ }
+ div.LC_edit_problem_header,
+ div.LC_edit_problem_header div,
+ div.LC_edit_problem_footer,
+ div.LC_edit_problem_footer div,
+ div.LC_edit_problem_editxml_header,
+ div.LC_edit_problem_editxml_header div {
+   margin-top: 5px;
+ }
+ div.LC_edit_problem_header_title {
+   font-weight: bold;
+   font-size: larger;
+   background: $tabbg;
+   padding: 3px;
+   margin: 0 0 5px 0;
+ }
+ table.LC_edit_problem_header_title {
+   width: 100%;
+   background: $tabbg;
+ }
+ div.LC_edit_problem_discards {
+   float: left;
+   padding-bottom: 5px;
+ }
+ div.LC_edit_problem_saves {
+   float: right;
+   padding-bottom: 5px;
+ }
+ .LC_edit_opt {
+   padding-left: 1em;
+   white-space: nowrap;
+ }
+ img.stift {
+   border-width: 0;
+   vertical-align: middle;
+ }
+ table td.LC_mainmenu_col_fieldset {
+   vertical-align: top;
+ }
+ div.LC_createcourse {
+   margin: 10px 10px 10px 10px;
+ }
+ .LC_dccid {
+   float: right;
+   margin: 0.2em 0 0 0;
+   padding: 0;
+   font-size: 90%;
+   display:none;
+ }
+ ol.LC_primary_menu a:hover,
+ ol#LC_MenuBreadcrumbs a:hover,
+ ol#LC_PathBreadcrumbs a:hover,
+ ul#LC_secondary_menu a:hover,
+ .LC_FormSectionClearButton input:hover
+ ul.LC_TabContent   li:hover a {
+   color:$button_hover;
+   text-decoration:none;
+ }
+ h1 {
+   padding: 0;
+   line-height:130%;
+ }
+ h2,
+ h3,
+ h4,
+ h5,
+ h6 {
+   margin: 5px 0 5px 0;
+   padding: 0;
+   line-height:130%;
+ }
+ .LC_hcell {
+   padding:3px 15px 3px 15px;
+   margin: 0;
+   background-color:$tabbg;
+   color:$fontmenu;
+   border-bottom:solid 1px $lg_border_color;
+ }
+ .LC_Box > .LC_hcell {
+   margin: 0 -10px 10px -10px;
+ }
+ .LC_noBorder {
+   border: 0;
+ }
+ .LC_FormSectionClearButton input {
+   background-color:transparent;
+   border: none;
+   cursor:pointer;
+   text-decoration:underline;
+ }
+ .LC_help_open_topic {
+   color: #FFFFFF;
+   background-color: #EEEEFF;
+   margin: 1px;
+   padding: 4px;
+   border: 1px solid #000033;
+   white-space: nowrap;
+   /* vertical-align: middle; */
+ }
+ dl,
+ ul,
+ div,
+ fieldset {
+   margin: 10px 10px 10px 0;
+   /* overflow: hidden; */
+ }
+ fieldset > legend {
+   font-weight: bold;
+   padding: 0 5px 0 5px;
+ }
+ #LC_nav_bar {
+   float: left;
+   background-color: $pgbg_or_bgcolor;
+   margin: 0 0 2px 0;
+ }
+ #LC_realm {
+   margin: 0.2em 0 0 0;
+   padding: 0;
+   font-weight: bold;
+   text-align: center;
+   background-color: $pgbg_or_bgcolor;
+ }
+ #LC_nav_bar em {
+   font-weight: bold;
+   font-style: normal;
+ }
+ ol.LC_primary_menu {
+   margin: 0;
+   padding: 0;
+   background-color: $pgbg_or_bgcolor;
+ }
+ ol#LC_PathBreadcrumbs {
+   margin: 0;
+ }
+ ol.LC_primary_menu li {
+   color: RGB(80, 80, 80);
+   vertical-align: middle;
+   text-align: left;
+   list-style: none;
+   float: left;
+ }
+ ol.LC_primary_menu li a {
+   display: block;
+   margin: 0;
+   padding: 0 5px 0 10px;
+   text-decoration: none;
+ }
+ ol.LC_primary_menu li ul {
+   display: none;
+   width: 10em;
+   background-color: $data_table_light;
+ }
+ ol.LC_primary_menu li:hover ul, ol.LC_primary_menu li.hover ul {
+   display: block;
+   position: absolute;
+   margin: 0;
+   padding: 0;
+   z-index: 2;
+ }
+ ol.LC_primary_menu li:hover li, ol.LC_primary_menu li.hover li {
+   font-size: 90%;
+   vertical-align: top;
+   float: none;
+   border-left: 1px solid black;
+   border-right: 1px solid black;
+ }
+ ol.LC_primary_menu li:hover li a, ol.LC_primary_menu li.hover li a {
+   background-color:$data_table_light;
+ }
+ ol.LC_primary_menu li li a:hover {
+    color:$button_hover;
+    background-color:$data_table_dark;
+ }
+ ol.LC_primary_menu li img {
+   vertical-align: bottom;
+   height: 1.1em;
+   margin: 0.2em 0 0 0;
+ }
+ ol.LC_primary_menu a {
+   color: RGB(80, 80, 80);
+   text-decoration: none;
+ }
+ ol.LC_primary_menu a.LC_new_message {
+   font-weight:bold;
+   color: darkred;
+ }
+ ol.LC_docs_parameters {
+   margin-left: 0;
+   padding: 0;
+   list-style: none;
+ }
+ ol.LC_docs_parameters li {
+   margin: 0;
+   padding-right: 20px;
+   display: inline;
+ }
+ ol.LC_docs_parameters li:before {
+   content: "\\002022 \\0020";
+ }
+ li.LC_docs_parameters_title {
+   font-weight: bold;
+ }
+ ol.LC_docs_parameters li.LC_docs_parameters_title:before {
+   content: "";
+ }
+ ul#LC_secondary_menu {
+   clear: right;
+   color: $fontmenu;
+   background: $tabbg;
+   list-style: none;
+   padding: 0;
+   margin: 0;
+   width: 100%;
+   text-align: left;
+   float: left;
+ }
+ ul#LC_secondary_menu li {
+   font-weight: bold;
+   line-height: 1.8em;
+   border-right: 1px solid black;
+   float: left;
+ }
+ ul#LC_secondary_menu li.LC_hoverable:hover, ul#LC_secondary_menu li.hover {
+   background-color: $data_table_light;
+ }
+ ul#LC_secondary_menu li a {
+   padding: 0 0.8em;
+ }
+ ul#LC_secondary_menu li ul {
+   display: none;
+ }
+ ul#LC_secondary_menu li:hover ul, ul#LC_secondary_menu li.hover ul {
+   display: block;
+   position: absolute;
+   margin: 0;
+   padding: 0;
+   list-style:none;
+   float: none;
+   background-color: $data_table_light;
+   z-index: 2;
+   margin-left: -1px;
+ }
+ ul#LC_secondary_menu li ul li {
+   font-size: 90%;
+   vertical-align: top;
+   border-left: 1px solid black;
+   border-right: 1px solid black;
+   background-color: $data_table_light;
+   list-style:none;
+   float: none;
+ }
+ ul#LC_secondary_menu li ul li:hover, ul#LC_secondary_menu li ul li.hover {
+   background-color: $data_table_dark;
+ }
+ ul.LC_TabContent {
+   display:block;
+   background: $sidebg;
+   border-bottom: solid 1px $lg_border_color;
+   list-style:none;
+   margin: -1px -10px 0 -10px;
+   padding: 0;
+ }
+ ul.LC_TabContent li,
+ ul.LC_TabContentBigger li {
+   float:left;
+ }
+ ul#LC_secondary_menu li a {
+   color: $fontmenu;
+   text-decoration: none;
+ }
+ ul.LC_TabContent {
+   min-height:20px;
+ }
+ ul.LC_TabContent li {
+   vertical-align:middle;
+   padding: 0 16px 0 10px;
+   background-color:$tabbg;
+   border-bottom:solid 1px $lg_border_color;
+   border-left: solid 1px $font;
+ }
-     my $buffer;
+ ul.LC_TabContent .right {
+   float:right;
+ }
+ ul.LC_TabContent li a,
+ ul.LC_TabContent li {
+   color:rgb(47,47,47);
+   text-decoration:none;
+   font-size:95%;
+   font-weight:bold;
+   min-height:20px;
+ }
+ ul.LC_TabContent li a:hover,
+ ul.LC_TabContent li a:focus {
+   color: $button_hover;
+   background:none;
+   outline:none;
+ }
+ ul.LC_TabContent li:hover {
+   color: $button_hover;
+   cursor:pointer;
+ }
+ ul.LC_TabContent li.active {
+   color: $font;
+   background:#FFFFFF url(/adm/lonIcons/open.gif) no-repeat scroll right center;
+   border-bottom:solid 1px #FFFFFF;
+   cursor: default;
+ }
+ ul.LC_TabContent li.active a {
+   color:$font;
+   background:#FFFFFF;
+   outline: none;
+ }
+ ul.LC_TabContent li.goback {
+   float: left;
+   border-left: none;
+ }
+ #maincoursedoc {
+   clear:both;
+ }
+ ul.LC_TabContentBigger {
+   display:block;
+   list-style:none;
+   padding: 0;
+ }
+ ul.LC_TabContentBigger li {
+   vertical-align:bottom;
+   height: 30px;
+   font-size:110%;
+   font-weight:bold;
+   color: #737373;
+ }
+ ul.LC_TabContentBigger li.active {
+   position: relative;
+   top: 1px;
+ }
+ ul.LC_TabContentBigger li a {
+   background:url('/adm/lonIcons/tabbgleft.gif') left bottom no-repeat;
+   height: 30px;
+   line-height: 30px;
+   text-align: center;
+   display: block;
+   text-decoration: none;
+   outline: none;
+ }
+ ul.LC_TabContentBigger li.active a {
+   background:url('/adm/lonIcons/tabbgleft.gif') left top no-repeat;
+   color:$font;
+ }
+ ul.LC_TabContentBigger li b {
+   background: url('/adm/lonIcons/tabbgright.gif') no-repeat right bottom;
+   display: block;
+   float: left;
+   padding: 0 30px;
+   border-bottom: 1px solid $lg_border_color;
+ }
+ ul.LC_TabContentBigger li:hover b {
+   color:$button_hover;
+ }
+ ul.LC_TabContentBigger li.active b {
+   background:url('/adm/lonIcons/tabbgright.gif') right top no-repeat;
+   color:$font;
+   border: 0;
+ }
+ ul.LC_CourseBreadcrumbs {
+   background: $sidebg;
+   height: 2em;
+   padding-left: 10px;
+   margin: 0;
+   list-style-position: inside;
+ }
+ ol#LC_MenuBreadcrumbs,
+ ol#LC_PathBreadcrumbs {
+   padding-left: 10px;
+   margin: 0;
+   height: 2.5em;  /* equal to #LC_breadcrumbs line-height */
+ }
+ ol#LC_MenuBreadcrumbs li,
+ ol#LC_PathBreadcrumbs li,
+ ul.LC_CourseBreadcrumbs li {
+   display: inline;
+   white-space: normal;
+ }
+ ol#LC_MenuBreadcrumbs li a,
+ ul.LC_CourseBreadcrumbs li a {
+   text-decoration: none;
+   font-size:90%;
+ }
+ ol#LC_MenuBreadcrumbs h1 {
+   display: inline;
+   font-size: 90%;
+   line-height: 2.5em;
+   margin: 0;
+   padding: 0;
+ }
+ ol#LC_PathBreadcrumbs li a {
+   text-decoration:none;
+   font-size:100%;
+   font-weight:bold;
+ }
+ .LC_Box {
+   border: solid 1px $lg_border_color;
+   padding: 0 10px 10px 10px;
+ }
+ .LC_DocsBox {
+   border: solid 1px $lg_border_color;
+   padding: 0 0 10px 10px;
+ }
+ .LC_AboutMe_Image {
+   float:left;
+   margin-right:10px;
+ }
+ .LC_Clear_AboutMe_Image {
+   clear:left;
+ }
+ dl.LC_ListStyleClean dt {
+   padding-right: 5px;
+   display: table-header-group;
+ }
+ dl.LC_ListStyleClean dd {
+   display: table-row;
+ }
+ .LC_ListStyleClean,
+ .LC_ListStyleSimple,
+ .LC_ListStyleNormal,
+ .LC_ListStyleSpecial {
+   /* display:block; */
+   list-style-position: inside;
+   list-style-type: none;
+   overflow: hidden;
+   padding: 0;
+ }
+ .LC_ListStyleSimple li,
+ .LC_ListStyleSimple dd,
+ .LC_ListStyleNormal li,
+ .LC_ListStyleNormal dd,
+ .LC_ListStyleSpecial li,
+ .LC_ListStyleSpecial dd {
+   margin: 0;
+   padding: 5px 5px 5px 10px;
+   clear: both;
+ }
+ .LC_ListStyleClean li,
+ .LC_ListStyleClean dd {
+   padding-top: 0;
+   padding-bottom: 0;
+ }
+ .LC_ListStyleSimple dd,
+ .LC_ListStyleSimple li {
+   border-bottom: solid 1px $lg_border_color;
+ }
+ .LC_ListStyleSpecial li,
+ .LC_ListStyleSpecial dd {
+   list-style-type: none;
+   background-color: RGB(220, 220, 220);
+   margin-bottom: 4px;
+ }
+ table.LC_SimpleTable {
+   margin:5px;
+   border:solid 1px $lg_border_color;
+ }
+ table.LC_SimpleTable tr {
+   padding: 0;
+   border:solid 1px $lg_border_color;
+ }
+ table.LC_SimpleTable thead {
+   background:rgb(220,220,220);
+ }
+ div.LC_columnSection {
+   display: block;
+   clear: both;
+   overflow: hidden;
+   margin: 0;
+ }
+ div.LC_columnSection>* {
+   float: left;
+   margin: 10px 20px 10px 0;
+   overflow:hidden;
+ }
+ table em {
+   font-weight: bold;
+   font-style: normal;
+ }
+ table.LC_tableBrowseRes,
+ table.LC_tableOfContent {
+   border:none;
+   border-spacing: 1px;
+   padding: 3px;
+   background-color: #FFFFFF;
+   font-size: 90%;
+ }
+ table.LC_tableOfContent {
+   border-collapse: collapse;
+ }
+ table.LC_tableBrowseRes a,
+ table.LC_tableOfContent a {
+   background-color: transparent;
+   text-decoration: none;
+ }
+ table.LC_tableOfContent img {
+   border: none;
+   height: 1.3em;
+   vertical-align: text-bottom;
+   margin-right: 0.3em;
+ }
+ a#LC_content_toolbar_firsthomework {
+   background-image:url(/res/adm/pages/open-first-problem.gif);
+ }
+ a#LC_content_toolbar_everything {
+   background-image:url(/res/adm/pages/show-all.gif);
+ }
+ a#LC_content_toolbar_uncompleted {
+   background-image:url(/res/adm/pages/show-incomplete-problems.gif);
+ }
+ #LC_content_toolbar_clearbubbles {
+   background-image:url(/res/adm/pages/mark-discussionentries-read.gif);
+ }
+ a#LC_content_toolbar_changefolder {
+   background : url(/res/adm/pages/close-all-folders.gif) top center ;
+ }
+ a#LC_content_toolbar_changefolder_toggled {
+   background-image:url(/res/adm/pages/open-all-folders.gif);
+ }
+ a#LC_content_toolbar_edittoplevel {
+   background-image:url(/res/adm/pages/edittoplevel.gif);
+ }
+ ul#LC_toolbar li a:hover {
+   background-position: bottom center;
+ }
+ ul#LC_toolbar {
+   padding: 0;
+   margin: 2px;
+   list-style:none;
+   position:relative;
+   background-color:white;
+   overflow: auto;
+ }
+ ul#LC_toolbar li {
+   border:1px solid white;
+   padding: 0;
+   margin: 0;
+   float: left;
+   display:inline;
+   vertical-align:middle;
+   white-space: nowrap;
+ }
+ a.LC_toolbarItem {
+   display:block;
+   padding: 0;
+   margin: 0;
+   height: 32px;
+   width: 32px;
+   color:white;
+   border: none;
+   background-repeat:no-repeat;
+   background-color:transparent;
+ }
+ ul.LC_funclist {
+     margin: 0;
+     padding: 0.5em 1em 0.5em 0;
+ }
+ ul.LC_funclist > li:first-child {
+     font-weight:bold;
+     margin-left:0.8em;
+ }
+ ul.LC_funclist + ul.LC_funclist {
+     /*
+        left border as a seperator if we have more than
+        one list
+     */
+     border-left: 1px solid $sidebg;
+     /*
+        this hides the left border behind the border of the
+        outer box if element is wrapped to the next 'line'
+     */
+     margin-left: -1px;
+ }
+ ul.LC_funclist li {
+   display: inline;
+   white-space: nowrap;
+   margin: 0 0 0 25px;
+   line-height: 150%;
+ }
+ .LC_hidden {
+   display: none;
+ }
+ .LCmodal-overlay {
+ 		position:fixed;
+ 		top:0;
+ 		right:0;
+ 		bottom:0;
+ 		left:0;
+ 		height:100%;
+ 		width:100%;
+ 		margin:0;
+ 		padding:0;
+ 		background:#999;
+ 		opacity:.75;
+ 		filter: alpha(opacity=75);
+ 		-moz-opacity: 0.75;
+ 		z-index:101;
+ }
+ * html .LCmodal-overlay {
+ 		position: absolute;
+ 		height: expression(document.body.scrollHeight > document.body.offsetHeight ? document.body.scrollHeight : document.body.offsetHeight + 'px');
+ }
+ .LCmodal-window {
+ 		position:fixed;
+ 		top:50%;
+ 		left:50%;
+ 		margin:0;
+ 		padding:0;
+ 		z-index:102;
+ 	}
+ * html .LCmodal-window {
+ 		position:absolute;
+ }
+ .LCclose-window {
+ 		position:absolute;
+ 		width:32px;
+ 		height:32px;
+ 		right:8px;
+ 		top:8px;
+ 		background:transparent url('/res/adm/pages/process-stop.png') no-repeat scroll right top;
+ 		text-indent:-99999px;
+ 		overflow:hidden;
+ 		cursor:pointer;
+ }
+ /*
+   styles used by TTH when "Default set of options to pass to tth/m
+   when converting TeX" in course settings has been set
+   option passed: -t
+ */
+ td div.comp { margin-top: -0.6ex; margin-bottom: -1ex;}
+ td div.comb { margin-top: -0.6ex; margin-bottom: -.6ex;}
+ td div.hrcomp { line-height: 0.9; margin-top: -0.8ex; margin-bottom: -1ex;}
+ td div.norm {line-height:normal;}
+ /*
+   option passed -y3
+ */
+ span.roman {font-family: serif; font-style: normal; font-weight: normal;}
+ span.overacc2 {position: relative;  left: .8em; top: -1.2ex;}
+ span.overacc1 {position: relative;  left: .6em; top: -1.2ex;}
+ END
+ }
+ =pod
+ =item * &headtag()
+ Returns a uniform footer for LON-CAPA web pages.
+ Inputs: $title - optional title for the head
+         $head_extra - optional extra HTML to put inside the <head>
+         $args - optional arguments
+             force_register - if is true call registerurl so the remote is
+                              informed
+             redirect       -> array ref of
+- seconds before redirect occurs
+- url to redirect to
+- whether the side effect should occur
+                            (side effect of setting
+                                $env{'internal.head.redirect'} to the url
+                                redirected too)
+             domain         -> force to color decorate a page for a specific
+                                domain
+             function       -> force usage of a specific rolish color scheme
+             bgcolor        -> override the default page bgcolor
+             no_auto_mt_title
+                            -> prevent &mt()ing the title arg
+ =cut
+ sub headtag {
+     my ($title,$head_extra,$args) = @_;
-     $r->read($buffer,$r->header_in('Content-length'),0);
+     my $function = $args->{'function'} || &get_users_function();
-     unless ($buffer=~/^(\-+\w+)\s+Content\-Disposition\:\s*form\-data/si) {
+     my $domain   = $args->{'domain'}   || &determinedomain();
- 	my @pairs=split(/&/,$buffer);
+     my $bgcolor  = $args->{'bgcolor'}  || &designparm($function.'.pgbg',$domain);
- 	my $pair;
+     my $url = join(':',$env{'user.name'},$env{'user.domain'},
- 	foreach $pair (@pairs) {
+ 		   $Apache::lonnet::perlvar{'lonVersion'},
- 	    my ($name,$value) = split(/=/,$pair);
+ 		   #time(),
- 	    $value =~ tr/+/ /;
+ 		   $env{'environment.color.timestamp'},
- 	    $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
+ 		   $function,$domain,$bgcolor);
- 	    $name  =~ tr/+/ /;
- 	    $name  =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
+     $url = '/adm/css/'.&escape($url).'.css';
- 	    &add_to_env("form.$name",$value);
- 	}
+     my $result =
-     } else {
+ 	'<head>'.
- 	my $contentsep=$1;
+ 	&font_settings();
- 	my @lines = split (/\n/,$buffer);
- 	my $name='';
+     my $inhibitprint = &print_suppression();
- 	my $value='';
- 	my $fname='';
+     if (!$args->{'frameset'}) {
- 	my $fmime='';
+ 	$result .= &Apache::lonhtmlcommon::htmlareaheaders();
- 	my $i;
+     }
- 	for ($i=0;$i<=$#lines;$i++) {
+     if ($args->{'force_register'} && $env{'request.noversionuri'} !~ m{^/res/adm/pages/}) {
- 	    if ($lines[$i]=~/^$contentsep/) {
+         $result .= Apache::lonxml::display_title();
- 		if ($name) {
+     }
- 		    chomp($value);
+     if (!$args->{'no_nav_bar'}
- 		    if ($fname) {
+ 	&& !$args->{'only_body'}
- 			$ENV{"form.$name.filename"}=$fname;
+ 	&& !$args->{'frameset'}) {
- 			$ENV{"form.$name.mimetype"}=$fmime;
+ 	$result .= &help_menu_js();
- 		    } else {
+         $result.=&modal_window();
- 			$value=~s/\s+$//s;
+         $result.=&togglebox_script();
- 		    }
+         $result.=&wishlist_window();
- 		    &add_to_env("form.$name",$value);
+         $result.=&LCprogressbarUpdate_script();
+     } else {
+         if ($args->{'add_modal'}) {
+            $result.=&modal_window();
+         }
+         if ($args->{'add_wishlist'}) {
+            $result.=&wishlist_window();
+         }
+         if ($args->{'add_togglebox'}) {
+            $result.=&togglebox_script();
+         }
+         if ($args->{'add_progressbar'}) {
+            $result.=&LCprogressbarUpdate_script();
+         }
+     }
+     if (ref($args->{'redirect'})) {
+ 	my ($time,$url,$inhibit_continue) = @{$args->{'redirect'}};
+ 	$url = &Apache::lonenc::check_encrypt($url);
+ 	if (!$inhibit_continue) {
+ 	    $env{'internal.head.redirect'} = $url;
+ 	}
+ 	$result.=<<ADDMETA
+ <meta http-equiv="pragma" content="no-cache" />
+ <meta http-equiv="Refresh" content="$time; url=$url" />
+ ADDMETA
+     }
+     if (!defined($title)) {
+ 	$title = 'The LearningOnline Network with CAPA';
+     }
+     if (!$args->{'no_auto_mt_title'}) { $title = &mt($title); }
+     $result .= '<title> LON-CAPA '.$title.'</title>'
+ 	.'<link rel="stylesheet" type="text/css" href="'.$url.'" />'
+         .$inhibitprint
+ 	.$head_extra;
+     return $result.'</head>';
+ }
+ =pod
+ =item * &font_settings()
+ Returns neccessary <meta> to set the proper encoding
+ Inputs: none
+ =cut
+ sub font_settings {
+     my $headerstring='';
+     if (!$env{'browser.mathml'} && $env{'browser.unicode'}) {
+ 	$headerstring.=
+ 	    '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
+     }
+     return $headerstring;
+ }
+ =pod
+ =item * &print_suppression()
+ In course context returns css which causes the body to be blank when media="print",
+ if printout generation is unavailable for the current resource.
+ This could be because:
+ (a) printstartdate is in the future
+ (b) printenddate is in the past
+ (c) there is an active exam block with "printout"
+ functionality blocked
+ Users with pav, pfo or evb privileges are exempt.
+ Inputs: none
+ =cut
+ sub print_suppression {
+     my $noprint;
+     if ($env{'request.course.id'}) {
+         my $scope = $env{'request.course.id'};
+         if ((&Apache::lonnet::allowed('pav',$scope)) ||
+             (&Apache::lonnet::allowed('pfo',$scope))) {
+             return;
+         }
+         if ($env{'request.course.sec'} ne '') {
+             $scope .= "/$env{'request.course.sec'}";
+             if ((&Apache::lonnet::allowed('pav',$scope)) ||
+                 (&Apache::lonnet::allowed('pfo',$scope))) {
+                 return;
+             }
+         }
+         my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+         my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+         my $blocked = &blocking_status('printout',$cnum,$cdom);
+         if ($blocked) {
+             my $checkrole = "cm./$cdom/$cnum";
+             if ($env{'request.course.sec'} ne '') {
+                 $checkrole .= "/$env{'request.course.sec'}";
+             }
+             unless ((&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) &&
+                     ($env{'request.role'} !~ m{^st\./$cdom/$cnum})) {
+                 $noprint = 1;
+             }
+         }
+         unless ($noprint) {
+             my $symb = &Apache::lonnet::symbread();
+             if ($symb ne '') {
+                 my $navmap = Apache::lonnavmaps::navmap->new();
+                 if (ref($navmap)) {
+                     my $res = $navmap->getBySymb($symb);
+                     if (ref($res)) {
+                         if (!$res->resprintable()) {
+                             $noprint = 1;
+                         }
+                     }
+                 }
+             }
+         }
+         if ($noprint) {
+             return <<"ENDSTYLE";
+ <style type="text/css" media="print">
+     body { display:none }
+ </style>
+ ENDSTYLE
+         }
+     }
+     return;
+ }
+ =pod
+ =item * &xml_begin()
+ Returns the needed doctype and <html>
+ Inputs: none
+ =cut
+ sub xml_begin {
+     my $output='';
+     if ($env{'browser.mathml'}) {
+ 	$output='<?xml version="1.0"?>'
+             #.'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'."\n"
+ #            .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
+ #	    .'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" [<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">] >'
+ 	    .'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd">'
+             .'<html xmlns:math="http://www.w3.org/1998/Math/MathML" '
+ 	    .'xmlns="http://www.w3.org/1999/xhtml">';
+     } else {
+ 	$output='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'
+            .'<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">';
+     }
+     return $output;
+ }
+ =pod
+ =item * &start_page()
+ Returns a complete <html> .. <body> section for LON-CAPA web pages.
+ Inputs:
+ =over 4
+ $title - optional title for the page
+ $head_extra - optional extra HTML to incude inside the <head>
+ $args - additional optional args supported are:
+ =over 8
+              only_body      -> is true will set &bodytag() onlybodytag
+                                     arg on
+              no_nav_bar     -> is true will set &bodytag() no_nav_bar arg on
+              add_entries    -> additional attributes to add to the  <body>
+              domain         -> force to color decorate a page for a
+                                     specific domain
+              function       -> force usage of a specific rolish color
+                                     scheme
+              redirect       -> see &headtag()
+              bgcolor        -> override the default page bg color
+              js_ready       -> return a string ready for being used in
+                                     a javascript writeln
+              html_encode    -> return a string ready for being used in
+                                     a html attribute
+              force_register -> if is true will turn on the &bodytag()
+                                     $forcereg arg
+              frameset       -> if true will start with a <frameset>
+                                     rather than <body>
+              skip_phases    -> hash ref of
+                                     head -> skip the <html><head> generation
+                                     body -> skip all <body> generation
+              no_auto_mt_title -> prevent &mt()ing the title arg
+              inherit_jsmath -> when creating popup window in a page,
+                                     should it have jsmath forced on by the
+                                     current page
+              bread_crumbs ->             Array containing breadcrumbs
+              bread_crumbs_component ->  if exists show it as headline else show only the breadcrumbs
+              group          -> includes the current group, if page is for a
+                                specific group
+ =back
+ =back
+ =cut
+ sub start_page {
+     my ($title,$head_extra,$args) = @_;
+     #&Apache::lonnet::logthis("start_page ".join(':',caller(0)));
+     $env{'internal.start_page'}++;
+     my ($result,@advtools);
+     if (! exists($args->{'skip_phases'}{'head'}) ) {
+         $result .= &xml_begin() . &headtag($title, $head_extra, $args);
+     }
+     if (! exists($args->{'skip_phases'}{'body'}) ) {
+ 	if ($args->{'frameset'}) {
+ 	    my $attr_string = &make_attr_string($args->{'force_register'},
+ 						$args->{'add_entries'});
+ 	    $result .= "\n<frameset $attr_string>\n";
+         } else {
+             $result .=
+                 &bodytag($title,
+                          $args->{'function'},       $args->{'add_entries'},
+                          $args->{'only_body'},      $args->{'domain'},
+                          $args->{'force_register'}, $args->{'no_nav_bar'},
+                          $args->{'bgcolor'},        $args,
+                          \@advtools);
+         }
+     }
+     if ($args->{'js_ready'}) {
+ 		$result = &js_ready($result);
+     }
+     if ($args->{'html_encode'}) {
+ 		$result = &html_encode($result);
+     }
+     # Preparation for new and consistent functionlist at top of screen
+     # if ($args->{'functionlist'}) {
+     #            $result .= &build_functionlist();
+     #}
+     # Don't add anything more if only_body wanted or in const space
+     return $result if    $args->{'only_body'}
+                       || $env{'request.state'} eq 'construct';
+     #Breadcrumbs
+     if (exists($args->{'bread_crumbs'}) or exists($args->{'bread_crumbs_component'})) {
+ 		&Apache::lonhtmlcommon::clear_breadcrumbs();
+ 		#if any br links exists, add them to the breadcrumbs
+ 		if (exists($args->{'bread_crumbs'}) and ref($args->{'bread_crumbs'}) eq 'ARRAY') {
+ 			foreach my $crumb (@{$args->{'bread_crumbs'}}){
+ 				&Apache::lonhtmlcommon::add_breadcrumb($crumb);
+ 			}
  		}
- 		if ($i<$#lines) {
+                 # if @advtools array contains items add then to the breadcrumbs
- 		    $i++;
+                 if (@advtools > 0) {
- 		    $lines[$i]=~
+                     &Apache::lonmenu::advtools_crumbs(@advtools);
- 		/Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
+                 }
- 		    $name=$1;
- 		    $value='';
+ 		#if bread_crumbs_component exists show it as headline else show only the breadcrumbs
- 		    if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
+ 		if(exists($args->{'bread_crumbs_component'})){
- 			$fname=$1;
+ 			$result .= &Apache::lonhtmlcommon::breadcrumbs($args->{'bread_crumbs_component'});
- 			if
+ 		}else{
-                             ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
+ 			$result .= &Apache::lonhtmlcommon::breadcrumbs();
- 				$fmime=$1;
- 				$i++;
- 			    } else {
- 				$fmime='';
- 			    }
- 		    } else {
- 			$fname='';
- 			$fmime='';
- 		    }
- 		    $i++;
  		}
- 	    } else {
+     }
- 		$value.=$lines[$i]."\n";
+     return $result;
+ }
+ sub end_page {
+     my ($args) = @_;
+     $env{'internal.end_page'}++;
+     my $result;
+     if ($args->{'discussion'}) {
+ 	my ($target,$parser);
+ 	if (ref($args->{'discussion'})) {
+ 	    ($target,$parser) =($args->{'discussion'}{'target'},
+ 				$args->{'discussion'}{'parser'});
+ 	}
+ 	$result .= &Apache::lonxml::xmlend($target,$parser);
+     }
+     if ($args->{'frameset'}) {
+ 	$result .= '</frameset>';
+     } else {
+ 	$result .= &endbodytag($args);
+     }
+     unless ($args->{'notbody'}) {
+         $result .= "\n</html>";
+     }
+     if ($args->{'js_ready'}) {
+ 	$result = &js_ready($result);
+     }
+     if ($args->{'html_encode'}) {
+ 	$result = &html_encode($result);
+     }
+     return $result;
+ }
+ sub wishlist_window {
+     return(<<'ENDWISHLIST');
+ <script type="text/javascript">
+ // <![CDATA[
+ // <!-- BEGIN LON-CAPA Internal
+ function set_wishlistlink(title, path) {
+     if (!title) {
+         title = document.title;
+         title = title.replace(/^LON-CAPA /,'');
+     }
+     if (!path) {
+         path = location.pathname;
+     }
+     Win = window.open('/adm/wishlist?mode=newLink&setTitle='+title+'&setPath='+path,
+                       'wishlistNewLink','width=560,height=350,scrollbars=0');
+ }
+ // END LON-CAPA Internal -->
+ // ]]>
+ </script>
+ ENDWISHLIST
+ }
+ sub modal_window {
+     return(<<'ENDMODAL');
+ <script type="text/javascript">
+ // <![CDATA[
+ // <!-- BEGIN LON-CAPA Internal
+ var modalWindow = {
+ 	parent:"body",
+ 	windowId:null,
+ 	content:null,
+ 	width:null,
+ 	height:null,
+ 	close:function()
+ 	{
+ 	        $(".LCmodal-window").remove();
+ 	        $(".LCmodal-overlay").remove();
+ 	},
+ 	open:function()
+ 	{
+ 		var modal = "";
+ 		modal += "<div class=\"LCmodal-overlay\"></div>";
+ 		modal += "<div id=\"" + this.windowId + "\" class=\"LCmodal-window\" style=\"width:" + this.width + "px; height:" + this.height + "px; margin-top:-" + (this.height / 2) + "px; margin-left:-" + (this.width / 2) + "px;\">";
+ 		modal += this.content;
+ 		modal += "</div>";
+ 		$(this.parent).append(modal);
+ 		$(".LCmodal-window").append("<a class=\"LCclose-window\"></a>");
+ 		$(".LCclose-window").click(function(){modalWindow.close();});
+ 		$(".LCmodal-overlay").click(function(){modalWindow.close();});
+ 	}
+ };
+ 	var openMyModal = function(source,width,height,scrolling)
+ 	{
+ 		modalWindow.windowId = "myModal";
+ 		modalWindow.width = width;
+ 		modalWindow.height = height;
+ 		modalWindow.content = "<iframe width='"+width+"' height='"+height+"' frameborder='0' scrolling='"+scrolling+"' allowtransparency='true' src='" + source + "'>&lt/iframe>";
+ 		modalWindow.open();
+ 	};
+ // END LON-CAPA Internal -->
+ // ]]>
+ </script>
+ ENDMODAL
+ }
+ sub modal_link {
+     my ($link,$linktext,$width,$height,$target,$scrolling,$title)=@_;
+     unless ($width) { $width=480; }
+     unless ($height) { $height=400; }
+     unless ($scrolling) { $scrolling='yes'; }
+     my $target_attr;
+     if (defined($target)) {
+         $target_attr = 'target="'.$target.'"';
+     }
+     return <<"ENDLINK";
+ <a href="$link" $target_attr title="$title" onclick="javascript:openMyModal('$link',$width,$height,'$scrolling'); return false;">
+            $linktext</a>
+ ENDLINK
+ }
+ sub modal_adhoc_script {
+     my ($funcname,$width,$height,$content)=@_;
+     return (<<ENDADHOC);
+ <script type="text/javascript">
+ // <![CDATA[
+         var $funcname = function()
+         {
+                 modalWindow.windowId = "myModal";
+                 modalWindow.width = $width;
+                 modalWindow.height = $height;
+                 modalWindow.content = '$content';
+                 modalWindow.open();
+         };
+ // ]]>
+ </script>
+ ENDADHOC
+ }
+ sub modal_adhoc_inner {
+     my ($funcname,$width,$height,$content)=@_;
+     my $innerwidth=$width-20;
+     $content=&js_ready(
+                &start_page('Dialog',undef,{'only_body'=>1,'bgcolor'=>'#FFFFFF'}).
+                  &start_scrollbox($width.'px',$innerwidth.'px',$height.'px').
+                     $content.
+                  &end_scrollbox().
+                &end_page()
+              );
+     return &modal_adhoc_script($funcname,$width,$height,$content);
+ }
+ sub modal_adhoc_window {
+     my ($funcname,$width,$height,$content,$linktext)=@_;
+     return &modal_adhoc_inner($funcname,$width,$height,$content).
+            "<a href=\"javascript:$funcname();void(0);\">".$linktext."</a>";
+ }
+ sub modal_adhoc_launch {
+     my ($funcname,$width,$height,$content)=@_;
+     return &modal_adhoc_inner($funcname,$width,$height,$content).(<<ENDLAUNCH);
+ <script type="text/javascript">
+ // <![CDATA[
+ $funcname();
+ // ]]>
+ </script>
+ ENDLAUNCH
+ }
+ sub modal_adhoc_close {
+     return (<<ENDCLOSE);
+ <script type="text/javascript">
+ // <![CDATA[
+ modalWindow.close();
+ // ]]>
+ </script>
+ ENDCLOSE
+ }
+ sub togglebox_script {
+    return(<<ENDTOGGLE);
+ <script type="text/javascript">
+ // <![CDATA[
+ function LCtoggleDisplay(id,hidetext,showtext) {
+    link = document.getElementById(id + "link").childNodes[0];
+    with (document.getElementById(id).style) {
+       if (display == "none" ) {
+           display = "inline";
+           link.nodeValue = hidetext;
+         } else {
+           display = "none";
+           link.nodeValue = showtext;
+        }
+    }
+ }
+ // ]]>
+ </script>
+ ENDTOGGLE
+ }
+ sub start_togglebox {
+     my ($id,$heading,$headerbg,$hidetext,$showtext)=@_;
+     unless ($heading) { $heading=''; } else { $heading.=' '; }
+     unless ($showtext) { $showtext=&mt('show'); }
+     unless ($hidetext) { $hidetext=&mt('hide'); }
+     unless ($headerbg) { $headerbg='#FFFFFF'; }
+     return &start_data_table().
+            &start_data_table_header_row().
+            '<td bgcolor="'.$headerbg.'">'.$heading.
+            '[<a id="'.$id.'link" href="javascript:LCtoggleDisplay(\''.$id.'\',\''.$hidetext.'\',\''.
+            $showtext.'\')">'.$showtext.'</a>]</td>'.
+            &end_data_table_header_row().
+            '<tr id="'.$id.'" style="display:none""><td>';
+ }
+ sub end_togglebox {
+     return '</td></tr>'.&end_data_table();
+ }
+ sub LCprogressbar_script {
+    my ($id)=@_;
+    return(<<ENDPROGRESS);
+ <script type="text/javascript">
+ // <![CDATA[
+ \$('#progressbar$id').progressbar({
+   value: 0,
+   change: function(event, ui) {
+     var newVal = \$(this).progressbar('option', 'value');
+     \$('.pblabel', this).text(LCprogressTxt);
+   }
+ });
+ // ]]>
+ </script>
+ ENDPROGRESS
+ }
+ sub LCprogressbarUpdate_script {
+    return(<<ENDPROGRESSUPDATE);
+ <style type="text/css">
+ .ui-progressbar { position:relative; }
+ .pblabel { position: absolute; width: 100%; text-align: center; line-height: 1.9em; }
+ </style>
+ <script type="text/javascript">
+ // <![CDATA[
+ var LCprogressTxt='---';
+ function LCupdateProgress(percent,progresstext,id) {
+    LCprogressTxt=progresstext;
+    \$('#progressbar'+id).progressbar('value',percent);
+ }
+ // ]]>
+ </script>
+ ENDPROGRESSUPDATE
+ }
+ my $LClastpercent;
+ my $LCidcnt;
+ my $LCcurrentid;
+ sub LCprogressbar {
+     my ($r)=(@_);
+     $LClastpercent=0;
+     $LCidcnt++;
+     $LCcurrentid=$$.'_'.$LCidcnt;
+     my $starting=&mt('Starting');
+     my $content=(<<ENDPROGBAR);
+   <div id="progressbar$LCcurrentid">
+     <span class="pblabel">$starting</span>
+   </div>
+ ENDPROGBAR
+     &r_print($r,$content.&LCprogressbar_script($LCcurrentid));
+ }
+ sub LCprogressbarUpdate {
+     my ($r,$val,$text)=@_;
+     unless ($val) {
+        if ($LClastpercent) {
+            $val=$LClastpercent;
+        } else {
+            $val=0;
+        }
+     }
+     if ($val<0) { $val=0; }
+     if ($val>100) { $val=0; }
+     $LClastpercent=$val;
+     unless ($text) { $text=$val.'%'; }
+     $text=&js_ready($text);
+     &r_print($r,<<ENDUPDATE);
+ <script type="text/javascript">
+ // <![CDATA[
+ LCupdateProgress($val,'$text','$LCcurrentid');
+ // ]]>
+ </script>
+ ENDUPDATE
+ }
+ sub LCprogressbarClose {
+     my ($r)=@_;
+     $LClastpercent=0;
+     &r_print($r,<<ENDCLOSE);
+ <script type="text/javascript">
+ // <![CDATA[
+ \$("#progressbar$LCcurrentid").hide('slow');
+ // ]]>
+ </script>
+ ENDCLOSE
+ }
+ sub r_print {
+     my ($r,$to_print)=@_;
+     if ($r) {
+       $r->print($to_print);
+       $r->rflush();
+     } else {
+       print($to_print);
+     }
+ }
+ sub html_encode {
+     my ($result) = @_;
+     $result = &HTML::Entities::encode($result,'<>&"');
+     return $result;
+ }
+ sub js_ready {
+     my ($result) = @_;
+     $result =~ s/[\n\r]/ /xmsg;
+     $result =~ s/\\/\\\\/xmsg;
+     $result =~ s/'/\\'/xmsg;
+     $result =~ s{</}{<\\/}xmsg;
+     return $result;
+ }
+ sub validate_page {
+     if (  exists($env{'internal.start_page'})
+ 	  &&     $env{'internal.start_page'} > 1) {
+ 	&Apache::lonnet::logthis('start_page called multiple times '.
+ 				 $env{'internal.start_page'}.' '.
+ 				 $ENV{'request.filename'});
+     }
+     if (  exists($env{'internal.end_page'})
+ 	  &&     $env{'internal.end_page'} > 1) {
+ 	&Apache::lonnet::logthis('end_page called multiple times '.
+ 				 $env{'internal.end_page'}.' '.
+ 				 $env{'request.filename'});
+     }
+     if (     exists($env{'internal.start_page'})
+ 	&& ! exists($env{'internal.end_page'})) {
+ 	&Apache::lonnet::logthis('start_page called without end_page '.
+ 				 $env{'request.filename'});
+     }
+     if (   ! exists($env{'internal.start_page'})
+ 	&&   exists($env{'internal.end_page'})) {
+ 	&Apache::lonnet::logthis('end_page called without start_page'.
+ 				 $env{'request.filename'});
+     }
+ }
+ sub start_scrollbox {
+     my ($outerwidth,$width,$height,$id,$bgcolor)=@_;
+     unless ($outerwidth) { $outerwidth='520px'; }
+     unless ($width) { $width='500px'; }
+     unless ($height) { $height='200px'; }
+     my ($table_id,$div_id,$tdcol);
+     if ($id ne '') {
+         $table_id = " id='table_$id'";
+         $div_id = " id='div_$id'";
+     }
+     if ($bgcolor ne '') {
+         $tdcol = "background-color: $bgcolor;";
+     }
+     return <<"END";
+ <table style="width: $outerwidth; border: 1px solid none;"$table_id><tr><td style="width: $width;$tdcol"><div style="overflow:auto; width:$width; height: $height;"$div_id>
+ END
+ }
+ sub end_scrollbox {
+     return '</div></td></tr></table>';
+ }
+ sub simple_error_page {
+     my ($r,$title,$msg) = @_;
+     my $page =
+ 	&Apache::loncommon::start_page($title).
+ 	'<p class="LC_error">'.&mt($msg).'</p>'.
+ 	&Apache::loncommon::end_page();
+     if (ref($r)) {
+ 	$r->print($page);
+ 	return;
+     }
+     return $page;
+ }
+ {
+     my @row_count;
+     sub start_data_table_count {
+         unshift(@row_count, 0);
+         return;
+     }
+     sub end_data_table_count {
+         shift(@row_count);
+         return;
+     }
+     sub start_data_table {
+ 	my ($add_class,$id) = @_;
+ 	my $css_class = (join(' ','LC_data_table',$add_class));
+         my $table_id;
+         if (defined($id)) {
+             $table_id = ' id="'.$id.'"';
+         }
+ 	&start_data_table_count();
+ 	return '<table class="'.$css_class.'"'.$table_id.'>'."\n";
+     }
+     sub end_data_table {
+ 	&end_data_table_count();
+ 	return '</table>'."\n";;
+     }
+     sub start_data_table_row {
+ 	my ($add_class, $id) = @_;
+ 	$row_count[0]++;
+ 	my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
+ 	$css_class = (join(' ',$css_class,$add_class)) unless ($add_class eq '');
+         $id = (' id="'.$id.'"') unless ($id eq '');
+         return  '<tr class="'.$css_class.'"'.$id.'>'."\n";
+     }
+     sub continue_data_table_row {
+ 	my ($add_class, $id) = @_;
+ 	my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
+ 	$css_class = (join(' ',$css_class,$add_class)) unless ($add_class eq '');
+         $id = (' id="'.$id.'"') unless ($id eq '');
+         return  '<tr class="'.$css_class.'"'.$id.'>'."\n";
+     }
+     sub end_data_table_row {
+ 	return '</tr>'."\n";;
+     }
+     sub start_data_table_empty_row {
+ #	$row_count[0]++;
+ 	return  '<tr class="LC_empty_row" >'."\n";;
+     }
+     sub end_data_table_empty_row {
+ 	return '</tr>'."\n";;
+     }
+     sub start_data_table_header_row {
+ 	return  '<tr class="LC_header_row">'."\n";;
+     }
+     sub end_data_table_header_row {
+ 	return '</tr>'."\n";;
+     }
+     sub data_table_caption {
+         my $caption = shift;
+         return "<caption class=\"LC_caption\">$caption</caption>";
+     }
+ }
+ =pod
+ =item * &inhibit_menu_check($arg)
+ Checks for a inhibitmenu state and generates output to preserve it
+ Inputs:         $arg - can be any of
+                      - undef - in which case the return value is a string
+                                to add  into arguments list of a uri
+                      - 'input' - in which case the return value is a HTML
+                                  <form> <input> field of type hidden to
+                                  preserve the value
+                      - a url - in which case the return value is the url with
+                                the neccesary cgi args added to preserve the
+                                inhibitmenu state
+                      - a ref to a url - no return value, but the string is
+                                         updated to include the neccessary cgi
+                                         args to preserve the inhibitmenu state
+ =cut
+ sub inhibit_menu_check {
+     my ($arg) = @_;
+     &get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['inhibitmenu']);
+     if ($arg eq 'input') {
+ 	if ($env{'form.inhibitmenu'}) {
+ 	    return '<input type="hidden" name="inhibitmenu" value="'.$env{'form.inhibitmenu'}.'" />';
+ 	} else {
+ 	    return
+ 	}
+     }
+     if ($env{'form.inhibitmenu'}) {
+ 	if (ref($arg)) {
+ 	    $$arg .= '?inhibitmenu='.$env{'form.inhibitmenu'};
+ 	} elsif ($arg eq '') {
+ 	    $arg .= 'inhibitmenu='.$env{'form.inhibitmenu'};
+ 	} else {
+ 	    $arg .= '?inhibitmenu='.$env{'form.inhibitmenu'};
+ 	}
+     }
+     if (!ref($arg)) {
+ 	return $arg;
+     }
+ }
+ ###############################################
+ =pod
+ =back
+ =head1 User Information Routines
+ =over 4
+ =item * &get_users_function()
+ Used by &bodytag to determine the current users primary role.
+ Returns either 'student','coordinator','admin', or 'author'.
+ =cut
+ ###############################################
+ sub get_users_function {
+     my $function = 'norole';
+     if ($env{'request.role'}=~/^(st)/) {
+         $function='student';
+     }
+     if ($env{'request.role'}=~/^(cc|co|in|ta|ep)/) {
+         $function='coordinator';
+     }
+     if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
+         $function='admin';
+     }
+     if (($env{'request.role'}=~/^(au|ca|aa)/) ||
+         ($ENV{'REQUEST_URI'}=~ m{/^(/priv)})) {
+         $function='author';
+     }
+     return $function;
+ }
+ ###############################################
+ =pod
+ =item * &show_course()
+ Used by lonmenu.pm and lonroles.pm to determine whether to use the word
+ 'Courses' or 'Roles' in inline navigation and on screen displaying user's roles.
+ Inputs:
+ None
+ Outputs:
+ Scalar: 1 if 'Course' to be used, 0 otherwise.
+ =cut
+ ###############################################
+ sub show_course {
+     my $course = !$env{'user.adv'};
+     if (!$env{'user.adv'}) {
+         foreach my $env (keys(%env)) {
+             next if ($env !~ m/^user\.priv\./);
+             if ($env !~ m/^user\.priv\.(?:st|cm)/) {
+                 $course = 0;
+                 last;
+             }
+         }
+     }
+     return $course;
+ }
+ ###############################################
+ =pod
+ =item * &check_user_status()
+ Determines current status of supplied role for a
+ specific user. Roles can be active, previous or future.
+ Inputs:
+ user's domain, user's username, course's domain,
+ course's number, optional section ID.
+ Outputs:
+ role status: active, previous or future.
+ =cut
+ sub check_user_status {
+     my ($udom,$uname,$cdom,$crs,$role,$sec) = @_;
+     my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname);
+     my @uroles = keys %userinfo;
+     my $srchstr;
+     my $active_chk = 'none';
+     my $now = time;
+     if (@uroles > 0) {
+         if (($role eq 'cc') || ($role eq 'co') || ($sec eq '') || (!defined($sec))) {
+             $srchstr = '/'.$cdom.'/'.$crs.'_'.$role;
+         } else {
+             $srchstr = '/'.$cdom.'/'.$crs.'/'.$sec.'_'.$role;
+         }
+         if (grep/^\Q$srchstr\E$/,@uroles) {
+             my $role_end = 0;
+             my $role_start = 0;
+             $active_chk = 'active';
+             if ($userinfo{$srchstr} =~ m/^\Q$role\E_(\d+)/) {
+                 $role_end = $1;
+                 if ($userinfo{$srchstr} =~ m/^\Q$role\E_\Q$role_end\E_(\d+)$/) {
+                     $role_start = $1;
+                 }
+             }
+             if ($role_start > 0) {
+                 if ($now < $role_start) {
+                     $active_chk = 'future';
+                 }
+             }
+             if ($role_end > 0) {
+                 if ($now > $role_end) {
+                     $active_chk = 'previous';
+                 }
+             }
+         }
+     }
+     return $active_chk;
+ }
+ ###############################################
+ =pod
+ =item * &get_sections()
+ Determines all the sections for a course including
+ sections with students and sections containing other roles.
+ Incoming parameters:
+. domain
+. course number
+. reference to array containing roles for which sections should
+ be gathered (optional).
+. reference to array containing status types for which sections
+ should be gathered (optional).
+ If the third argument is undefined, sections are gathered for any role.
+ If the fourth argument is undefined, sections are gathered for any status.
+ Permissible values are 'active' or 'future' or 'previous'.
+ Returns section hash (keys are section IDs, values are
+ number of users in each section), subject to the
+ optional roles filter, optional status filter
+ =cut
+ ###############################################
+ sub get_sections {
+     my ($cdom,$cnum,$possible_roles,$possible_status) = @_;
+     if (!defined($cdom) || !defined($cnum)) {
+         my $cid =  $env{'request.course.id'};
+ 	return if (!defined($cid));
+         $cdom = $env{'course.'.$cid.'.domain'};
+         $cnum = $env{'course.'.$cid.'.num'};
+     }
+     my %sectioncount;
+     my $now = time;
+     my $check_students = 1;
+     my $only_students = 0;
+     if (ref($possible_roles) eq 'ARRAY') {
+         if (grep(/^st$/,@{$possible_roles})) {
+             if (@{$possible_roles} == 1) {
+                 $only_students = 1;
+             }
+         } else {
+             $check_students = 0;
+         }
+     }
+     if ($check_students) {
+ 	my ($classlist) = &Apache::loncoursedata::get_classlist($cdom,$cnum);
+ 	my $sec_index = &Apache::loncoursedata::CL_SECTION();
+ 	my $status_index = &Apache::loncoursedata::CL_STATUS();
+         my $start_index = &Apache::loncoursedata::CL_START();
+         my $end_index = &Apache::loncoursedata::CL_END();
+         my $status;
+ 	while (my ($student,$data) = each(%$classlist)) {
+ 	    my ($section,$stu_status,$start,$end) = ($data->[$sec_index],
+ 				                     $data->[$status_index],
+                                                      $data->[$start_index],
+                                                      $data->[$end_index]);
+             if ($stu_status eq 'Active') {
+                 $status = 'active';
+             } elsif ($end < $now) {
+                 $status = 'previous';
+             } elsif ($start > $now) {
+                 $status = 'future';
+             }
+ 	    if ($section ne '-1' && $section !~ /^\s*$/) {
+                 if ((!defined($possible_status)) || (($status ne '') &&
+                     (grep/^\Q$status\E$/,@{$possible_status}))) {
+ 		    $sectioncount{$section}++;
+                 }
  	    }
  	}
      }
-     $ENV{'request.method'}=$ENV{'REQUEST_METHOD'};
+     if ($only_students) {
-     $r->method_number(M_GET);
+         return %sectioncount;
-     $r->method('GET');
+     }
-     $r->headers_in->unset('Content-length');
+     my %courseroles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
+     foreach my $user (sort(keys(%courseroles))) {
+ 	if ($user !~ /^(\w{2})/) { next; }
+ 	my ($role) = ($user =~ /^(\w{2})/);
+ 	if ($possible_roles && !(grep(/^$role$/,@$possible_roles))) { next; }
+ 	my ($section,$status);
+ 	if ($role eq 'cr' &&
+ 	    $user =~ m-^$role/[^/]*/[^/]*/[^/]*:[^:]*:[^:]*:(\w+)-) {
+ 	    $section=$1;
+ 	}
+ 	if ($user =~ /^$role:[^:]*:[^:]*:(\w+)/) { $section=$1; }
+ 	if (!defined($section) || $section eq '-1') { next; }
+         my ($end,$start) = ($courseroles{$user} =~ /^([^:]*):([^:]*)$/);
+         if ($end == -1 && $start == -1) {
+             next; #deleted role
+         }
+         if (!defined($possible_status)) {
+             $sectioncount{$section}++;
+         } else {
+             if ((!$end || $end >= $now) && (!$start || $start <= $now)) {
+                 $status = 'active';
+             } elsif ($end < $now) {
+                 $status = 'future';
+             } elsif ($start > $now) {
+                 $status = 'previous';
+             }
+             if (($status ne '') && (grep/^\Q$status\E$/,@{$possible_status})) {
+                 $sectioncount{$section}++;
+             }
+         }
+     }
+     return %sectioncount;
+ }
+ ###############################################
+ =pod
+ =item * &get_course_users()
+ Retrieves usernames:domains for users in the specified course
+ with specific role(s), and access status.
+ Incoming parameters:
+. course domain
+. course number
+. access status: users must have - either active,
+ previous, future, or all.
+. reference to array of permissible roles
+. reference to array of section restrictions (optional)
+. reference to results object (hash of hashes).
+. reference to optional userdata hash
+. reference to optional statushash
+. flag if privileged users (except those set to unhide in
+    course settings) should be excluded
+ Keys of top level results hash are roles.
+ Keys of inner hashes are username:domain, with
+ values set to access type.
+ Optional userdata hash returns an array with arguments in the
+ same order as loncoursedata::get_classlist() for student data.
+ Optional statushash returns
+ Entries for end, start, section and status are blank because
+ of the possibility of multiple values for non-student roles.
+ =cut
+ ###############################################
+ sub get_course_users {
+     my ($cdom,$cnum,$types,$roles,$sections,$users,$userdata,$statushash,$hidepriv) = @_;
+     my %idx = ();
+     my %seclists;
+     $idx{udom} = &Apache::loncoursedata::CL_SDOM();
+     $idx{uname} =  &Apache::loncoursedata::CL_SNAME();
+     $idx{end} = &Apache::loncoursedata::CL_END();
+     $idx{start} = &Apache::loncoursedata::CL_START();
+     $idx{id} = &Apache::loncoursedata::CL_ID();
+     $idx{section} = &Apache::loncoursedata::CL_SECTION();
+     $idx{fullname} = &Apache::loncoursedata::CL_FULLNAME();
+     $idx{status} = &Apache::loncoursedata::CL_STATUS();
+     if (grep(/^st$/,@{$roles})) {
+         my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist($cdom,$cnum);
+         my $now = time;
+         foreach my $student (keys(%{$classlist})) {
+             my $match = 0;
+             my $secmatch = 0;
+             my $section = $$classlist{$student}[$idx{section}];
+             my $status = $$classlist{$student}[$idx{status}];
+             if ($section eq '') {
+                 $section = 'none';
+             }
+             if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
+                 if (grep(/^all$/,@{$sections})) {
+                     $secmatch = 1;
+                 } elsif ($$classlist{$student}[$idx{section}] eq '') {
+                     if (grep(/^none$/,@{$sections})) {
+                         $secmatch = 1;
+                     }
+                 } else {
+ 		    if (grep(/^\Q$section\E$/,@{$sections})) {
+ 		        $secmatch = 1;
+                     }
+ 		}
+                 if (!$secmatch) {
+                     next;
+                 }
+             }
+             if (defined($$types{'active'})) {
+                 if ($$classlist{$student}[$idx{status}] eq 'Active') {
+                     push(@{$$users{st}{$student}},'active');
+                     $match = 1;
+                 }
+             }
+             if (defined($$types{'previous'})) {
+                 if ($$classlist{$student}[$idx{status}] eq 'Expired') {
+                     push(@{$$users{st}{$student}},'previous');
+                     $match = 1;
+                 }
+             }
+             if (defined($$types{'future'})) {
+                 if ($$classlist{$student}[$idx{status}] eq 'Future') {
+                     push(@{$$users{st}{$student}},'future');
+                     $match = 1;
+                 }
+             }
+             if ($match) {
+                 push(@{$seclists{$student}},$section);
+                 if (ref($userdata) eq 'HASH') {
+                     $$userdata{$student} = $$classlist{$student};
+                 }
+                 if (ref($statushash) eq 'HASH') {
+                     $statushash->{$student}{'st'}{$section} = $status;
+                 }
+             }
+         }
+     }
+     if ((@{$roles} > 1) || ((@{$roles} == 1) && ($$roles[0] ne "st"))) {
+         my %coursepersonnel = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
+         my $now = time;
+         my %displaystatus = ( previous => 'Expired',
+                               active   => 'Active',
+                               future   => 'Future',
+                             );
+         my (%nothide,@possdoms);
+         if ($hidepriv) {
+             my %coursehash=&Apache::lonnet::coursedescription($cdom.'_'.$cnum);
+             foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
+                 if ($user !~ /:/) {
+                     $nothide{join(':',split(/[\@]/,$user))}=1;
+                 } else {
+                     $nothide{$user} = 1;
+                 }
+             }
+             my @possdoms = ($cdom);
+             if ($coursehash{'checkforpriv'}) {
+                 push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
+             }
+         }
+         foreach my $person (sort(keys(%coursepersonnel))) {
+             my $match = 0;
+             my $secmatch = 0;
+             my $status;
+             my ($role,$user,$usec) = ($person =~ /^([^:]*):([^:]+:[^:]+):([^:]*)/);
+             $user =~ s/:$//;
+             my ($end,$start) = split(/:/,$coursepersonnel{$person});
+             if ($end == -1 || $start == -1) {
+                 next;
+             }
+             if (($role) && ((grep(/^\Q$role\E$/,@{$roles})) ||
+                 (grep(/^cr$/,@{$roles}) && $role =~ /^cr\//))) {
+                 my ($uname,$udom) = split(/:/,$user);
+                 if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
+                     if (grep(/^all$/,@{$sections})) {
+                         $secmatch = 1;
+                     } elsif ($usec eq '') {
+                         if (grep(/^none$/,@{$sections})) {
+                             $secmatch = 1;
+                         }
+                     } else {
+                         if (grep(/^\Q$usec\E$/,@{$sections})) {
+                             $secmatch = 1;
+                         }
+                     }
+                     if (!$secmatch) {
+                         next;
+                     }
+                 }
+                 if ($usec eq '') {
+                     $usec = 'none';
+                 }
+                 if ($uname ne '' && $udom ne '') {
+                     if ($hidepriv) {
+                         if ((&Apache::lonnet::privileged($uname,$udom,\@possdoms)) &&
+                             (!$nothide{$uname.':'.$udom})) {
+                             next;
+                         }
+                     }
+                     if ($end > 0 && $end < $now) {
+                         $status = 'previous';
+                     } elsif ($start > $now) {
+                         $status = 'future';
+                     } else {
+                         $status = 'active';
+                     }
+                     foreach my $type (keys(%{$types})) {
+                         if ($status eq $type) {
+                             if (!grep(/^\Q$type\E$/,@{$$users{$role}{$user}})) {
+                                 push(@{$$users{$role}{$user}},$type);
+                             }
+                             $match = 1;
+                         }
+                     }
+                     if (($match) && (ref($userdata) eq 'HASH')) {
+                         if (!exists($$userdata{$uname.':'.$udom})) {
+ 			    &get_user_info($udom,$uname,\%idx,$userdata);
+                         }
+                         if (!grep(/^\Q$usec\E$/,@{$seclists{$uname.':'.$udom}})) {
+                             push(@{$seclists{$uname.':'.$udom}},$usec);
+                         }
+                         if (ref($statushash) eq 'HASH') {
+                             $statushash->{$uname.':'.$udom}{$role}{$usec} = $displaystatus{$status};
+                         }
+                     }
+                 }
+             }
+         }
+         if (grep(/^ow$/,@{$roles})) {
+             if ((defined($cdom)) && (defined($cnum))) {
+                 my %csettings = &Apache::lonnet::get('environment',['internal.courseowner'],$cdom,$cnum);
+                 if ( defined($csettings{'internal.courseowner'}) ) {
+                     my $owner = $csettings{'internal.courseowner'};
+                     next if ($owner eq '');
+                     my ($ownername,$ownerdom);
+                     if ($owner =~ /^([^:]+):([^:]+)$/) {
+                         $ownername = $1;
+                         $ownerdom = $2;
+                     } else {
+                         $ownername = $owner;
+                         $ownerdom = $cdom;
+                         $owner = $ownername.':'.$ownerdom;
+                     }
+                     @{$$users{'ow'}{$owner}} = 'any';
+                     if (defined($userdata) &&
+ 			!exists($$userdata{$owner})) {
+ 			&get_user_info($ownerdom,$ownername,\%idx,$userdata);
+                         if (!grep(/^none$/,@{$seclists{$owner}})) {
+                             push(@{$seclists{$owner}},'none');
+                         }
+                         if (ref($statushash) eq 'HASH') {
+                             $statushash->{$owner}{'ow'}{'none'} = 'Any';
+                         }
+ 		    }
+                 }
+             }
+         }
+         foreach my $user (keys(%seclists)) {
+             @{$seclists{$user}} = (sort {$a <=> $b} @{$seclists{$user}});
+             $$userdata{$user}[$idx{section}] = join(',',@{$seclists{$user}});
+         }
+     }
+     return;
  }
+ sub get_user_info {
+     my ($udom,$uname,$idx,$userdata) = @_;
+     $$userdata{$uname.':'.$udom}[$$idx{fullname}] =
+ 	&plainname($uname,$udom,'lastname');
+     $$userdata{$uname.':'.$udom}[$$idx{uname}] = $uname;
+     $$userdata{$uname.':'.$udom}[$$idx{udom}] = $udom;
+     my %idhash =  &Apache::lonnet::idrget($udom,($uname));
+     $$userdata{$uname.':'.$udom}[$$idx{id}] = $idhash{$uname};
+     return;
+ }
+ ###############################################
  =pod
- =item * get_unprocessed_cgi($query,$possible_names)
+ =item * &get_user_quota()
+ Retrieves quota assigned for storage of user files.
+ Default is to report quota for portfolio files.
+ Incoming parameters:
+. user's username
+. user's domain
+. quota name - portfolio, author, or course
+    (if no quota name provided, defaults to portfolio).
+ Returns:
+. Disk quota (in Mb) assigned to student.
+. (Optional) Type of setting: custom or default
+    (individually assigned or default for user's
+    institutional status).
+. (Optional) - User's institutional status (e.g., faculty, staff
+    or student - types as defined in localenroll::inst_usertypes
+    for user's domain, which determines default quota for user.
+. (Optional) - Default quota which would apply to the user.
+ If a value has been stored in the user's environment,
+ it will return that, otherwise it returns the maximal default
+ defined for the user's institutional status(es) in the domain.
+ =cut
+ ###############################################
- Modify the %ENV hash to contain unprocessed CGI form parameters held in
+ sub get_user_quota {
+     my ($uname,$udom,$quotaname) = @_;
+     my ($quota,$quotatype,$settingstatus,$defquota);
+     if (!defined($udom)) {
+         $udom = $env{'user.domain'};
+     }
+     if (!defined($uname)) {
+         $uname = $env{'user.name'};
+     }
+     if (($udom eq '' || $uname eq '') ||
+         ($udom eq 'public') && ($uname eq 'public')) {
+         $quota = 0;
+         $quotatype = 'default';
+         $defquota = 0;
+     } else {
+         my $inststatus;
+         if ($quotaname eq 'course') {
+             if (($env{'course.'.$udom.'_'.$uname.'.num'} eq $uname) &&
+                 ($env{'course.'.$udom.'_'.$uname.'.domain'} eq $udom)) {
+                 $quota = $env{'course.'.$udom.'_'.$uname.'.internal.uploadquota'};
+             } else {
+                 my %cenv = &Apache::lonnet::coursedescription("$udom/$uname");
+                 $quota = $cenv{'internal.uploadquota'};
+             }
+         } else {
+             if ($udom eq $env{'user.domain'} && $uname eq $env{'user.name'}) {
+                 if ($quotaname eq 'author') {
+                     $quota = $env{'environment.authorquota'};
+                 } else {
+                     $quota = $env{'environment.portfolioquota'};
+                 }
+                 $inststatus = $env{'environment.inststatus'};
+             } else {
+                 my %userenv =
+                     &Apache::lonnet::get('environment',['portfolioquota',
+                                          'authorquota','inststatus'],$udom,$uname);
+                 my ($tmp) = keys(%userenv);
+                 if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
+                     if ($quotaname eq 'author') {
+                         $quota = $userenv{'authorquota'};
+                     } else {
+                         $quota = $userenv{'portfolioquota'};
+                     }
+                     $inststatus = $userenv{'inststatus'};
+                 } else {
+                     undef(%userenv);
+                 }
+             }
+         }
+         if ($quota eq '' || wantarray) {
+             if ($quotaname eq 'course') {
+                 my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
+                 $defquota = $domdefs{'uploadquota'};
+             } else {
+                 ($defquota,$settingstatus) = &default_quota($udom,$inststatus,$quotaname);
+             }
+             if ($quota eq '') {
+                 $quota = $defquota;
+                 $quotatype = 'default';
+             } else {
+                 $quotatype = 'custom';
+             }
+         }
+     }
+     if (wantarray) {
+         return ($quota,$quotatype,$settingstatus,$defquota);
+     } else {
+         return $quota;
+     }
+ }
+ ###############################################
+ =pod
+ =item * &default_quota()
+ Retrieves default quota assigned for storage of user portfolio files,
+ given an (optional) user's institutional status.
+ Incoming parameters:
+. domain
+. (Optional) institutional status(es).  This is a : separated list of
+    status types (e.g., faculty, staff, student etc.)
+    which apply to the user for whom the default is being retrieved.
+    If the institutional status string in undefined, the domain
+    default quota will be returned.
+.  quota name - portfolio, author, or course
+    (if no quota name provided, defaults to portfolio).
+ Returns:
+. Default disk quota (in Mb) for user portfolios in the domain.
+. (Optional) institutional type which determined the value of the
+    default quota.
+ If a value has been stored in the domain's configuration db,
+ it will return that, otherwise it returns 20 (for backwards
+ compatibility with domains which have not set up a configuration
+ db file; the original statically defined portfolio quota was 20 Mb).
+ If the user's status includes multiple types (e.g., staff and student),
+ the largest default quota which applies to the user determines the
+ default quota returned.
+ =back
+ =cut
+ ###############################################
+ sub default_quota {
+     my ($udom,$inststatus,$quotaname) = @_;
+     my ($defquota,$settingstatus);
+     my %quotahash = &Apache::lonnet::get_dom('configuration',
+                                             ['quotas'],$udom);
+     my $key = 'defaultquota';
+     if ($quotaname eq 'author') {
+         $key = 'authorquota';
+     }
+     if (ref($quotahash{'quotas'}) eq 'HASH') {
+         if ($inststatus ne '') {
+             my @statuses = map { &unescape($_); } split(/:/,$inststatus);
+             foreach my $item (@statuses) {
+                 if (ref($quotahash{'quotas'}{$key}) eq 'HASH') {
+                     if ($quotahash{'quotas'}{$key}{$item} ne '') {
+                         if ($defquota eq '') {
+                             $defquota = $quotahash{'quotas'}{$key}{$item};
+                             $settingstatus = $item;
+                         } elsif ($quotahash{'quotas'}{$key}{$item} > $defquota) {
+                             $defquota = $quotahash{'quotas'}{$key}{$item};
+                             $settingstatus = $item;
+                         }
+                     }
+                 } elsif ($key eq 'defaultquota') {
+                     if ($quotahash{'quotas'}{$item} ne '') {
+                         if ($defquota eq '') {
+                             $defquota = $quotahash{'quotas'}{$item};
+                             $settingstatus = $item;
+                         } elsif ($quotahash{'quotas'}{$item} > $defquota) {
+                             $defquota = $quotahash{'quotas'}{$item};
+                             $settingstatus = $item;
+                         }
+                     }
+                 }
+             }
+         }
+         if ($defquota eq '') {
+             if (ref($quotahash{'quotas'}{$key}) eq 'HASH') {
+                 $defquota = $quotahash{'quotas'}{$key}{'default'};
+             } elsif ($key eq 'defaultquota') {
+                 $defquota = $quotahash{'quotas'}{'default'};
+             }
+             $settingstatus = 'default';
+         }
+     } else {
+         $settingstatus = 'default';
+         if ($quotaname eq 'author') {
+             $defquota = 500;
+         } else {
+             $defquota = 20;
+         }
+     }
+     if (wantarray) {
+         return ($defquota,$settingstatus);
+     } else {
+         return $defquota;
+     }
+ }
+ ###############################################
+ =pod
+ =item * &excess_filesize_authorspace()
+ Returns warning message if upload of file to authoring space, or copying
+ of existing file within authoring space will cause quota to be exceeded.
+ Inputs: 6
+. username
+. domain
+. directory path for top level of current authoring space
+. filename of file for which action is being requested
+. filesize (kB) of file
+. action being taken: copy or upload.
+ Returns: 1 scalar: HTML to display containing warning if quota would be exceeded,
+          otherwise return null.
+ =cut
+ sub excess_filesize_authorspace {
+     my ($uname,$udom,$authorspace,$filename,$filesize,$action) = @_;
+     my $disk_quota = &Apache::loncommon::get_user_quota($uname,$udom,'author'); #expressed in MB
+     $disk_quota = int($disk_quota * 1000);
+     my $current_disk_usage = &Apache::lonnet::diskusage($udom,$uname,$authorspace);
+     if (($current_disk_usage + $filesize) > $disk_quota) {
+         return '<p><span class="LC_warning">'.
+                 &mt("Unable to $action [_1]. (size = [_2] kilobytes). Disk quota will be exceeded.",
+                     '<span class="LC_filename">'.$filename.'</span>',$filesize).'</span>'.
+                '<br />'.&mt('Disk quota is [_1] kilobytes. Your current disk usage is [_2] kilobytes.',
+                             $disk_quota,$current_disk_usage).
+                '</p>';
+     }
+     return;
+ }
+ ###############################################
+ sub get_secgrprole_info {
+     my ($cdom,$cnum,$needroles,$type)  = @_;
+     my %sections_count = &get_sections($cdom,$cnum);
+     my @sections =  (sort {$a <=> $b} keys(%sections_count));
+     my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
+     my @groups = sort(keys(%curr_groups));
+     my $allroles = [];
+     my $rolehash;
+     my $accesshash = {
+                      active => 'Currently has access',
+                      future => 'Will have future access',
+                      previous => 'Previously had access',
+                   };
+     if ($needroles) {
+         $rolehash = {'all' => 'all'};
+         my %user_roles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
+ 	if (&Apache::lonnet::error(%user_roles)) {
+ 	    undef(%user_roles);
+ 	}
+         foreach my $item (keys(%user_roles)) {
+             my ($role)=split(/\:/,$item,2);
+             if ($role eq 'cr') { next; }
+             if ($role =~ /^cr/) {
+                 $$rolehash{$role} = (split('/',$role))[3];
+             } else {
+                 $$rolehash{$role} = &Apache::lonnet::plaintext($role,$type);
+             }
+         }
+         foreach my $key (sort(keys(%{$rolehash}))) {
+             push(@{$allroles},$key);
+         }
+         push (@{$allroles},'st');
+         $$rolehash{'st'} = &Apache::lonnet::plaintext('st',$type);
+     }
+     return (\@sections,\@groups,$allroles,$rolehash,$accesshash);
+ }
+ sub user_picker {
+     my ($dom,$srch,$forcenewuser,$caller,$cancreate,$usertype,$context) = @_;
+     my $currdom = $dom;
+     my %curr_selected = (
+                         srchin => 'dom',
+                         srchby => 'lastname',
+                       );
+     my $srchterm;
+     if ((ref($srch) eq 'HASH') && ($env{'form.origform'} ne 'crtusername')) {
+         if ($srch->{'srchby'} ne '') {
+             $curr_selected{'srchby'} = $srch->{'srchby'};
+         }
+         if ($srch->{'srchin'} ne '') {
+             $curr_selected{'srchin'} = $srch->{'srchin'};
+         }
+         if ($srch->{'srchtype'} ne '') {
+             $curr_selected{'srchtype'} = $srch->{'srchtype'};
+         }
+         if ($srch->{'srchdomain'} ne '') {
+             $currdom = $srch->{'srchdomain'};
+         }
+         $srchterm = $srch->{'srchterm'};
+     }
+     my %lt=&Apache::lonlocal::texthash(
+                     'usr'       => 'Search criteria',
+                     'doma'      => 'Domain/institution to search',
+                     'uname'     => 'username',
+                     'lastname'  => 'last name',
+                     'lastfirst' => 'last name, first name',
+                     'crs'       => 'in this course',
+                     'dom'       => 'in selected LON-CAPA domain',
+                     'alc'       => 'all LON-CAPA',
+                     'instd'     => 'in institutional directory for selected domain',
+                     'exact'     => 'is',
+                     'contains'  => 'contains',
+                     'begins'    => 'begins with',
+                     'youm'      => "You must include some text to search for.",
+                     'thte'      => "The text you are searching for must contain at least two characters when using a 'begins' type search.",
+                     'thet'      => "The text you are searching for must contain at least three characters when using a 'contains' type search.",
+                     'yomc'      => "You must choose a domain when using an institutional directory search.",
+                     'ymcd'      => "You must choose a domain when using a domain search.",
+                     'whus'      => "When using searching by last,first you must include a comma as separator between last name and first name.",
+                     'whse'      => "When searching by last,first you must include at least one character in the first name.",
+                      'thfo'     => "The following need to be corrected before the search can be run:",
+                                        );
+     my $domform = &select_dom_form($currdom,'srchdomain',1,1);
+     my $srchinsel = ' <select name="srchin">';
+     my @srchins = ('crs','dom','alc','instd');
+     foreach my $option (@srchins) {
+         # FIXME 'alc' option unavailable until
+         #       loncreateuser::print_user_query_page()
+         #       has been completed.
+         next if ($option eq 'alc');
+         next if (($option eq 'crs') && ($env{'form.form'} eq 'requestcrs'));
+         next if ($option eq 'crs' && !$env{'request.course.id'});
+         if ($curr_selected{'srchin'} eq $option) {
+             $srchinsel .= '
+    <option value="'.$option.'" selected="selected">'.$lt{$option}.'</option>';
+         } else {
+             $srchinsel .= '
+    <option value="'.$option.'">'.$lt{$option}.'</option>';
+         }
+     }
+     $srchinsel .= "\n  </select>\n";
+     my $srchbysel =  ' <select name="srchby">';
+     foreach my $option ('lastname','lastfirst','uname') {
+         if ($curr_selected{'srchby'} eq $option) {
+             $srchbysel .= '
+    <option value="'.$option.'" selected="selected">'.$lt{$option}.'</option>';
+         } else {
+             $srchbysel .= '
+    <option value="'.$option.'">'.$lt{$option}.'</option>';
+          }
+     }
+     $srchbysel .= "\n  </select>\n";
+     my $srchtypesel = ' <select name="srchtype">';
+     foreach my $option ('begins','contains','exact') {
+         if ($curr_selected{'srchtype'} eq $option) {
+             $srchtypesel .= '
+    <option value="'.$option.'" selected="selected">'.$lt{$option}.'</option>';
+         } else {
+             $srchtypesel .= '
+    <option value="'.$option.'">'.$lt{$option}.'</option>';
+         }
+     }
+     $srchtypesel .= "\n  </select>\n";
+     my ($newuserscript,$new_user_create);
+     my $context_dom = $env{'request.role.domain'};
+     if ($context eq 'requestcrs') {
+         if ($env{'form.coursedom'} ne '') {
+             $context_dom = $env{'form.coursedom'};
+         }
+     }
+     if ($forcenewuser) {
+         if (ref($srch) eq 'HASH') {
+             if ($srch->{'srchby'} eq 'uname' && $srch->{'srchtype'} eq 'exact' && $srch->{'srchin'} eq 'dom' && $srch->{'srchdomain'} eq $context_dom) {
+                 if ($cancreate) {
+                     $new_user_create = '<p> <input type="submit" name="forcenew" value="'.&HTML::Entities::encode(&mt('Make new user "[_1]"',$srchterm),'<>&"').'" onclick="javascript:setSearch(\'1\','.$caller.');" /> </p>';
+                 } else {
+                     my $helplink = 'javascript:helpMenu('."'display'".')';
+                     my %usertypetext = (
+                         official   => 'institutional',
+                         unofficial => 'non-institutional',
+                     );
+                     $new_user_create = '<p class="LC_warning">'
+                                       .&mt("You are not authorized to create new $usertypetext{$usertype} users in this domain.")
+                                       .' '
+                                       .&mt('Please contact the [_1]helpdesk[_2] for assistance.'
+                                           ,'<a href="'.$helplink.'">','</a>')
+                                       .'</p><br />';
+                 }
+             }
+         }
+         $newuserscript = <<"ENDSCRIPT";
+ function setSearch(createnew,callingForm) {
+     if (createnew == 1) {
+         for (var i=0; i<callingForm.srchby.length; i++) {
+             if (callingForm.srchby.options[i].value == 'uname') {
+                 callingForm.srchby.selectedIndex = i;
+             }
+         }
+         for (var i=0; i<callingForm.srchin.length; i++) {
+             if ( callingForm.srchin.options[i].value == 'dom') {
+ 		callingForm.srchin.selectedIndex = i;
+             }
+         }
+         for (var i=0; i<callingForm.srchtype.length; i++) {
+             if (callingForm.srchtype.options[i].value == 'exact') {
+                 callingForm.srchtype.selectedIndex = i;
+             }
+         }
+         for (var i=0; i<callingForm.srchdomain.length; i++) {
+             if (callingForm.srchdomain.options[i].value == '$context_dom') {
+                 callingForm.srchdomain.selectedIndex = i;
+             }
+         }
+     }
+ }
+ ENDSCRIPT
+     }
+     my $output = <<"END_BLOCK";
+ <script type="text/javascript">
+ // <![CDATA[
+ function validateEntry(callingForm) {
+     var checkok = 1;
+     var srchin;
+     for (var i=0; i<callingForm.srchin.length; i++) {
+ 	if ( callingForm.srchin[i].checked ) {
+ 	    srchin = callingForm.srchin[i].value;
+ 	}
+     }
+     var srchtype = callingForm.srchtype.options[callingForm.srchtype.selectedIndex].value;
+     var srchby = callingForm.srchby.options[callingForm.srchby.selectedIndex].value;
+     var srchdomain = callingForm.srchdomain.options[callingForm.srchdomain.selectedIndex].value;
+     var srchterm =  callingForm.srchterm.value;
+     var srchin = callingForm.srchin.options[callingForm.srchin.selectedIndex].value;
+     var msg = "";
+     if (srchterm == "") {
+         checkok = 0;
+         msg += "$lt{'youm'}\\n";
+     }
+     if (srchtype== 'begins') {
+         if (srchterm.length < 2) {
+             checkok = 0;
+             msg += "$lt{'thte'}\\n";
+         }
+     }
+     if (srchtype== 'contains') {
+         if (srchterm.length < 3) {
+             checkok = 0;
+             msg += "$lt{'thet'}\\n";
+         }
+     }
+     if (srchin == 'instd') {
+         if (srchdomain == '') {
+             checkok = 0;
+             msg += "$lt{'yomc'}\\n";
+         }
+     }
+     if (srchin == 'dom') {
+         if (srchdomain == '') {
+             checkok = 0;
+             msg += "$lt{'ymcd'}\\n";
+         }
+     }
+     if (srchby == 'lastfirst') {
+         if (srchterm.indexOf(",") == -1) {
+             checkok = 0;
+             msg += "$lt{'whus'}\\n";
+         }
+         if (srchterm.indexOf(",") == srchterm.length -1) {
+             checkok = 0;
+             msg += "$lt{'whse'}\\n";
+         }
+     }
+     if (checkok == 0) {
+         alert("$lt{'thfo'}\\n"+msg);
+         return;
+     }
+     if (checkok == 1) {
+         callingForm.submit();
+     }
+ }
+ $newuserscript
+ // ]]>
+ </script>
+ $new_user_create
+ END_BLOCK
+     $output .= &Apache::lonhtmlcommon::start_pick_box().
+                &Apache::lonhtmlcommon::row_title($lt{'doma'}).
+                $domform.
+                &Apache::lonhtmlcommon::row_closure().
+                &Apache::lonhtmlcommon::row_title($lt{'usr'}).
+                $srchbysel.
+                $srchtypesel.
+                '<input type="text" size="15" name="srchterm" value="'.$srchterm.'" />'.
+                $srchinsel.
+                &Apache::lonhtmlcommon::row_closure(1).
+                &Apache::lonhtmlcommon::end_pick_box().
+                '<br />';
+     return $output;
+ }
+ sub user_rule_check {
+     my ($usershash,$checks,$alerts,$rulematch,$inst_results,$curr_rules,$got_rules) = @_;
+     my $response;
+     if (ref($usershash) eq 'HASH') {
+         foreach my $user (keys(%{$usershash})) {
+             my ($uname,$udom) = split(/:/,$user);
+             next if ($udom eq '' || $uname eq '');
+             my ($id,$newuser);
+             if (ref($usershash->{$user}) eq 'HASH') {
+                 $newuser = $usershash->{$user}->{'newuser'};
+                 $id = $usershash->{$user}->{'id'};
+             }
+             my $inst_response;
+             if (ref($checks) eq 'HASH') {
+                 if (defined($checks->{'username'})) {
+                     ($inst_response,%{$inst_results->{$user}}) =
+                         &Apache::lonnet::get_instuser($udom,$uname);
+                 } elsif (defined($checks->{'id'})) {
+                     ($inst_response,%{$inst_results->{$user}}) =
+                         &Apache::lonnet::get_instuser($udom,undef,$id);
+                 }
+             } else {
+                 ($inst_response,%{$inst_results->{$user}}) =
+                     &Apache::lonnet::get_instuser($udom,$uname);
+                 return;
+             }
+             if (!$got_rules->{$udom}) {
+                 my %domconfig = &Apache::lonnet::get_dom('configuration',
+                                                   ['usercreation'],$udom);
+                 if (ref($domconfig{'usercreation'}) eq 'HASH') {
+                     foreach my $item ('username','id') {
+                         if (ref($domconfig{'usercreation'}{$item.'_rule'}) eq 'ARRAY') {
+                             $$curr_rules{$udom}{$item} =
+                                 $domconfig{'usercreation'}{$item.'_rule'};
+                         }
+                     }
+                 }
+                 $got_rules->{$udom} = 1;
+             }
+             foreach my $item (keys(%{$checks})) {
+                 if (ref($$curr_rules{$udom}) eq 'HASH') {
+                     if (ref($$curr_rules{$udom}{$item}) eq 'ARRAY') {
+                         if (@{$$curr_rules{$udom}{$item}} > 0) {
+                             my %rule_check = &Apache::lonnet::inst_rulecheck($udom,$uname,$id,$item,$$curr_rules{$udom}{$item});
+                             foreach my $rule (@{$$curr_rules{$udom}{$item}}) {
+                                 if ($rule_check{$rule}) {
+                                     $$rulematch{$user}{$item} = $rule;
+                                     if ($inst_response eq 'ok') {
+                                         if (ref($inst_results) eq 'HASH') {
+                                             if (ref($inst_results->{$user}) eq 'HASH') {
+                                                 if (keys(%{$inst_results->{$user}}) == 0) {
+                                                     $$alerts{$item}{$udom}{$uname} = 1;
+                                                 }
+                                             }
+                                         }
+                                     }
+                                     last;
+                                 }
+                             }
+                         }
+                     }
+                 }
+             }
+         }
+     }
+     return;
+ }
+ sub user_rule_formats {
+     my ($domain,$domdesc,$curr_rules,$check) = @_;
+     my %text = (
+                  'username' => 'Usernames',
+                  'id'       => 'IDs',
+                );
+     my $output;
+     my ($rules,$ruleorder) = &Apache::lonnet::inst_userrules($domain,$check);
+     if ((ref($rules) eq 'HASH') && (ref($ruleorder) eq 'ARRAY')) {
+         if (@{$ruleorder} > 0) {
+             $output = '<br />'.
+                       &mt($text{$check}.' with the following format(s) may [_1]only[_2] be used for verified users at [_3]:',
+                           '<span class="LC_cusr_emph">','</span>',$domdesc).
+                       ' <ul>';
+             foreach my $rule (@{$ruleorder}) {
+                 if (ref($curr_rules) eq 'ARRAY') {
+                     if (grep(/^\Q$rule\E$/,@{$curr_rules})) {
+                         if (ref($rules->{$rule}) eq 'HASH') {
+                             $output .= '<li>'.$rules->{$rule}{'name'}.': '.
+                                         $rules->{$rule}{'desc'}.'</li>';
+                         }
+                     }
+                 }
+             }
+             $output .= '</ul>';
+         }
+     }
+     return $output;
+ }
+ sub instrule_disallow_msg {
+     my ($checkitem,$domdesc,$count,$mode) = @_;
+     my $response;
+     my %text = (
+                   item   => 'username',
+                   items  => 'usernames',
+                   match  => 'matches',
+                   do     => 'does',
+                   action => 'a username',
+                   one    => 'one',
+                );
+     if ($count > 1) {
+         $text{'item'} = 'usernames';
+         $text{'match'} ='match';
+         $text{'do'} = 'do';
+         $text{'action'} = 'usernames',
+         $text{'one'} = 'ones';
+     }
+     if ($checkitem eq 'id') {
+         $text{'items'} = 'IDs';
+         $text{'item'} = 'ID';
+         $text{'action'} = 'an ID';
+         if ($count > 1) {
+             $text{'item'} = 'IDs';
+             $text{'action'} = 'IDs';
+         }
+     }
+     $response = &mt("The $text{'item'} you chose $text{'match'} the format of $text{'items'} defined for [_1], but the $text{'item'} $text{'do'} not exist in the institutional directory.",'<span class="LC_cusr_emph">'.$domdesc.'</span>').'<br />';
+     if ($mode eq 'upload') {
+         if ($checkitem eq 'username') {
+             $response .= &mt("You will need to modify your upload file so it will include $text{'action'} with a different format --  $text{'one'} that will not conflict with 'official' institutional $text{'items'}.");
+         } elsif ($checkitem eq 'id') {
+             $response .= &mt("Either upload a file which includes $text{'action'} with a different format --  $text{'one'} that will not conflict with 'official' institutional $text{'items'}, or when associating fields with data columns, omit an association for the Student/Employee ID field.");
+         }
+     } elsif ($mode eq 'selfcreate') {
+         if ($checkitem eq 'id') {
+             $response .= &mt("You must either choose $text{'action'} with a different format --  $text{'one'} that will not conflict with 'official' institutional $text{'items'}, or leave the ID field blank.");
+         }
+     } else {
+         if ($checkitem eq 'username') {
+             $response .= &mt("You must choose $text{'action'} with a different format --  $text{'one'} that will not conflict with 'official' institutional $text{'items'}.");
+         } elsif ($checkitem eq 'id') {
+             $response .= &mt("You must either choose $text{'action'} with a different format --  $text{'one'} that will not conflict with 'official' institutional $text{'items'}, or leave the ID field blank.");
+         }
+     }
+     return $response;
+ }
+ sub personal_data_fieldtitles {
+     my %fieldtitles = &Apache::lonlocal::texthash (
+                         id => 'Student/Employee ID',
+                         permanentemail => 'E-mail address',
+                         lastname => 'Last Name',
+                         firstname => 'First Name',
+                         middlename => 'Middle Name',
+                         generation => 'Generation',
+                         gen => 'Generation',
+                         inststatus => 'Affiliation',
+                    );
+     return %fieldtitles;
+ }
+ sub sorted_inst_types {
+     my ($dom) = @_;
+     my ($usertypes,$order) = &Apache::lonnet::retrieve_inst_usertypes($dom);
+     my $othertitle = &mt('All users');
+     if ($env{'request.course.id'}) {
+         $othertitle  = &mt('Any users');
+     }
+     my @types;
+     if (ref($order) eq 'ARRAY') {
+         @types = @{$order};
+     }
+     if (@types == 0) {
+         if (ref($usertypes) eq 'HASH') {
+             @types = sort(keys(%{$usertypes}));
+         }
+     }
+     if (keys(%{$usertypes}) > 0) {
+         $othertitle = &mt('Other users');
+     }
+     return ($othertitle,$usertypes,\@types);
+ }
+ sub get_institutional_codes {
+     my ($settings,$allcourses,$LC_code) = @_;
+ # Get complete list of course sections to update
+     my @currsections = ();
+     my @currxlists = ();
+     my $coursecode = $$settings{'internal.coursecode'};
+     if ($$settings{'internal.sectionnums'} ne '') {
+         @currsections = split(/,/,$$settings{'internal.sectionnums'});
+     }
+     if ($$settings{'internal.crosslistings'} ne '') {
+         @currxlists = split(/,/,$$settings{'internal.crosslistings'});
+     }
+     if (@currxlists > 0) {
+         foreach (@currxlists) {
+             if (m/^([^:]+):(\w*)$/) {
+                 unless (grep/^$1$/,@{$allcourses}) {
+                     push @{$allcourses},$1;
+                     $$LC_code{$1} = $2;
+                 }
+             }
+         }
+     }
+     if (@currsections > 0) {
+         foreach (@currsections) {
+             if (m/^(\w+):(\w*)$/) {
+                 my $sec = $coursecode.$1;
+                 my $lc_sec = $2;
+                 unless (grep/^$sec$/,@{$allcourses}) {
+                     push @{$allcourses},$sec;
+                     $$LC_code{$sec} = $lc_sec;
+                 }
+             }
+         }
+     }
+     return;
+ }
+ sub get_standard_codeitems {
+     return ('Year','Semester','Department','Number','Section');
+ }
+ =pod
+ =head1 Slot Helpers
+ =over 4
+ =item * sorted_slots()
+ Sorts an array of slot names in order of an optional sort key,
+ default sort is by slot start time (earliest first).
+ Inputs:
+ =over 4
+ slotsarr  - Reference to array of unsorted slot names.
+ slots     - Reference to hash of hash, where outer hash keys are slot names.
+ sortkey   - Name of key in inner hash to be sorted on (e.g., starttime).
+ =back
+ Returns:
+ =over 4
+ sorted   - An array of slot names sorted by a specified sort key
+            (default sort key is start time of the slot).
+ =back
+ =cut
+ sub sorted_slots {
+     my ($slotsarr,$slots,$sortkey) = @_;
+     if ($sortkey eq '') {
+         $sortkey = 'starttime';
+     }
+     my @sorted;
+     if ((ref($slotsarr) eq 'ARRAY') && (ref($slots) eq 'HASH')) {
+         @sorted =
+             sort {
+                      if (ref($slots->{$a}) && ref($slots->{$b})) {
+                          return $slots->{$a}{$sortkey} <=> $slots->{$b}{$sortkey}
+                      }
+                      if (ref($slots->{$a})) { return -1;}
+                      if (ref($slots->{$b})) { return 1;}
+                      return 0;
+                  } @{$slotsarr};
+     }
+     return @sorted;
+ }
+ =pod
+ =item * get_future_slots()
+ Inputs:
+ =over 4
+ cnum - course number
+ cdom - course domain
+ now - current UNIX time
+ symb - optional symb
+ =back
+ Returns:
+ =over 4
+ sorted_reservable - ref to array of student_schedulable slots currently
+                     reservable, ordered by end date of reservation period.
+ reservable_now - ref to hash of student_schedulable slots currently
+                  reservable.
+     Keys in inner hash are:
+     (a) symb: either blank or symb to which slot use is restricted.
+     (b) endreserve: end date of reservation period.
+ sorted_future - ref to array of student_schedulable slots reservable in
+                 the future, ordered by start date of reservation period.
+ future_reservable - ref to hash of student_schedulable slots reservable
+                     in the future.
+     Keys in inner hash are:
+     (a) symb: either blank or symb to which slot use is restricted.
+     (b) startreserve:  start date of reservation period.
+ =back
+ =cut
+ sub get_future_slots {
+     my ($cnum,$cdom,$now,$symb) = @_;
+     my (%reservable_now,%future_reservable,@sorted_reservable,@sorted_future);
+     my %slots = &Apache::lonnet::get_course_slots($cnum,$cdom);
+     foreach my $slot (keys(%slots)) {
+         next unless($slots{$slot}->{'type'} eq 'schedulable_student');
+         if ($symb) {
+             next if (($slots{$slot}->{'symb'} ne '') &&
+                      ($slots{$slot}->{'symb'} ne $symb));
+         }
+         if (($slots{$slot}->{'starttime'} > $now) &&
+             ($slots{$slot}->{'endtime'} > $now)) {
+             if (($slots{$slot}->{'allowedsections'}) || ($slots{$slot}->{'allowedusers'})) {
+                 my $userallowed = 0;
+                 if ($slots{$slot}->{'allowedsections'}) {
+                     my @allowed_sec = split(',',$slots{$slot}->{'allowedsections'});
+                     if (!defined($env{'request.role.sec'})
+                         && grep(/^No section assigned$/,@allowed_sec)) {
+                         $userallowed=1;
+                     } else {
+                         if (grep(/^\Q$env{'request.role.sec'}\E$/,@allowed_sec)) {
+                             $userallowed=1;
+                         }
+                     }
+                     unless ($userallowed) {
+                         if (defined($env{'request.course.groups'})) {
+                             my @groups = split(/:/,$env{'request.course.groups'});
+                             foreach my $group (@groups) {
+                                 if (grep(/^\Q$group\E$/,@allowed_sec)) {
+                                     $userallowed=1;
+                                     last;
+                                 }
+                             }
+                         }
+                     }
+                 }
+                 if ($slots{$slot}->{'allowedusers'}) {
+                     my @allowed_users = split(',',$slots{$slot}->{'allowedusers'});
+                     my $user = $env{'user.name'}.':'.$env{'user.domain'};
+                     if (grep(/^\Q$user\E$/,@allowed_users)) {
+                         $userallowed = 1;
+                     }
+                 }
+                 next unless($userallowed);
+             }
+             my $startreserve = $slots{$slot}->{'startreserve'};
+             my $endreserve = $slots{$slot}->{'endreserve'};
+             my $symb = $slots{$slot}->{'symb'};
+             if (($startreserve < $now) &&
+                 (!$endreserve || $endreserve > $now)) {
+                 my $lastres = $endreserve;
+                 if (!$lastres) {
+                     $lastres = $slots{$slot}->{'starttime'};
+                 }
+                 $reservable_now{$slot} = {
+                                            symb       => $symb,
+                                            endreserve => $lastres
+                                          };
+             } elsif (($startreserve > $now) &&
+                      (!$endreserve || $endreserve > $startreserve)) {
+                 $future_reservable{$slot} = {
+                                               symb         => $symb,
+                                               startreserve => $startreserve
+                                             };
+             }
+         }
+     }
+     my @unsorted_reservable = keys(%reservable_now);
+     if (@unsorted_reservable > 0) {
+         @sorted_reservable =
+             &sorted_slots(\@unsorted_reservable,\%reservable_now,'endreserve');
+     }
+     my @unsorted_future = keys(%future_reservable);
+     if (@unsorted_future > 0) {
+         @sorted_future =
+             &sorted_slots(\@unsorted_future,\%future_reservable,'startreserve');
+     }
+     return (\@sorted_reservable,\%reservable_now,\@sorted_future,\%future_reservable);
+ }
+ =pod
+ =back
+ =head1 HTTP Helpers
+ =over 4
+ =item * &get_unprocessed_cgi($query,$possible_names)
+ Modify the %env hash to contain unprocessed CGI form parameters held in
  $query.  The parameters listed in $possible_names (an array reference),
- will be set in $ENV{'form.name'} if they do not already exist.
+ will be set in $env{'form.name'} if they do not already exist.
  Typically called with $ENV{'QUERY_STRING'} as the first parameter.
  $possible_names is an ref to an array of form element names.  As an example:
  get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
- will result in $ENV{'form.uname'} and $ENV{'form.udom'} being set.
+ will result in $env{'form.uname'} and $env{'form.udom'} being set.
  =cut
  sub get_unprocessed_cgi {
    my ($query,$possible_names)= @_;
    # $Apache::lonxml::debug=1;
-   foreach (split(/&/,$query)) {
+   foreach my $pair (split(/&/,$query)) {
-     my ($name, $value) = split(/=/,$_);
+     my ($name, $value) = split(/=/,$pair);
-     $name = &Apache::lonnet::unescape($name);
+     $name = &unescape($name);
      if (!defined($possible_names) || (grep {$_ eq $name} @$possible_names)) {
        $value =~ tr/+/ /;
        $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
-       &Apache::lonxml::debug("Seting :$name: to :$value:");
+       unless (defined($env{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
-       unless (defined($ENV{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
      }
    }
  }
  =pod
- =item * cacheheader()
+ =item * &cacheheader()
  returns cache-controlling header code
  =cut
  sub cacheheader {
-   unless ($ENV{'request.method'} eq 'GET') { return ''; }
+     unless ($env{'request.method'} eq 'GET') { return ''; }
-   my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
+     my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
-   my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
+     my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
                  <meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
                  <meta HTTP-EQUIV="Pragma" CONTENT="no-cache" />';
-   return $output;
+     return $output;
  }
  =pod
- =item * no_cache($r)
+ =item * &no_cache($r)
  specifies header code to not have cache
  =cut
  sub no_cache {
-   my ($r) = @_;
+     my ($r) = @_;
-   unless ($ENV{'request.method'} eq 'GET') { return ''; }
+     if ($ENV{'REQUEST_METHOD'} ne 'GET' &&
-   #my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
+ 	$env{'request.method'} ne 'GET') { return ''; }
-   $r->no_cache(1);
+     my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime(time));
-   $r->header_out("Pragma" => "no-cache");
+     $r->no_cache(1);
-   #$r->header_out("Expires" => $date);
+     $r->header_out("Expires" => $date);
+     $r->header_out("Pragma" => "no-cache");
  }
  sub content_type {
-   my ($r,$type,$charset) = @_;
+     my ($r,$type,$charset) = @_;
-   unless ($charset) {
+     if ($r) {
-       $charset=&Apache::lonlocal::current_encoding;
+ 	#  Note that printout.pl calls this with undef for $r.
-   }
+ 	&no_cache($r);
-   $r->content_type($type.($charset?'; charset='.$charset:''));
+     }
+     if ($env{'browser.mathml'} && $type eq 'text/html') { $type='text/xml'; }
+     unless ($charset) {
+ 	$charset=&Apache::lonlocal::current_encoding;
+     }
+     if ($charset) { $type.='; charset='.$charset; }
+     if ($r) {
+ 	$r->content_type($type);
+     } else {
+ 	print("Content-type: $type\n\n");
+     }
  }
  =pod
- =item * add_to_env($name,$value)
+ =item * &add_to_env($name,$value)
- adds $name to the %ENV hash with value
+ adds $name to the %env hash with value
  $value, if $name already exists, the entry is converted to an array
  reference and $value is added to the array.
- Line 2349  reference and $value is added to the arr
+ Line 9587  reference and $value is added to the arr
  sub add_to_env {
    my ($name,$value)=@_;
-   if (defined($ENV{$name})) {
+   if (defined($env{$name})) {
-     if (ref($ENV{$name})) {
+     if (ref($env{$name})) {
        #already have multiple values
-       push(@{ $ENV{$name} },$value);
+       push(@{ $env{$name} },$value);
      } else {
        #first time seeing multiple values, convert hash entry to an arrayref
-       my $first=$ENV{$name};
+       my $first=$env{$name};
-       undef($ENV{$name});
+       undef($env{$name});
-       push(@{ $ENV{$name} },$first,$value);
+       push(@{ $env{$name} },$first,$value);
      }
    } else {
-     $ENV{$name}=$value;
+     $env{$name}=$value;
    }
  }
  =pod
- =item * get_env_multiple($name)
+ =item * &get_env_multiple($name)
- gets $name from the %ENV hash, it seemlessly handles the cases where multiple
+ gets $name from the %env hash, it seemlessly handles the cases where multiple
  values may be defined and end up as an array ref.
  returns an array of values
- Line 2378  returns an array of values
+ Line 9616  returns an array of values
  sub get_env_multiple {
      my ($name) = @_;
      my @values;
-     if (defined($ENV{$name})) {
+     if (defined($env{$name})) {
          # exists is it an array
-         if (ref($ENV{$name})) {
+         if (ref($env{$name})) {
-             @values=@{ $ENV{$name} };
+             @values=@{ $env{$name} };
          } else {
-             $values[0]=$ENV{$name};
+             $values[0]=$env{$name};
          }
      }
      return(@values);
  }
+ sub ask_for_embedded_content {
+     my ($actionurl,$state,$allfiles,$codebase,$args)=@_;
+     my (%subdependencies,%dependencies,%mapping,%existing,%newfiles,%pathchanges,
+         %currsubfile,%unused,$rem);
+     my $counter = 0;
+     my $numnew = 0;
+     my $numremref = 0;
+     my $numinvalid = 0;
+     my $numpathchg = 0;
+     my $numexisting = 0;
+     my $numunused = 0;
+     my ($output,$upload_output,$toplevel,$url,$udom,$uname,$getpropath,$cdom,$cnum,
+         $fileloc,$filename,$delete_output,$modify_output,$title,$symb,$path);
+     my $heading = &mt('Upload embedded files');
+     my $buttontext = &mt('Upload');
+     my ($navmap,$cdom,$cnum);
+     if ($env{'request.course.id'}) {
+         if ($actionurl eq '/adm/dependencies') {
+             $navmap = Apache::lonnavmaps::navmap->new();
+         }
+         $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+         $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+     }
+     if (($actionurl eq '/adm/portfolio') ||
+         ($actionurl eq '/adm/coursegrp_portfolio')) {
+         my $current_path='/';
+         if ($env{'form.currentpath'}) {
+             $current_path = $env{'form.currentpath'};
+         }
+         if ($actionurl eq '/adm/coursegrp_portfolio') {
+             $udom = $cdom;
+             $uname = $cnum;
+             $url = '/userfiles/groups/'.$env{'form.group'}.'/portfolio';
+         } else {
+             $udom = $env{'user.domain'};
+             $uname = $env{'user.name'};
+             $url = '/userfiles/portfolio';
+         }
+         $toplevel = $url.'/';
+         $url .= $current_path;
+         $getpropath = 1;
+     } elsif (($actionurl eq '/adm/upload') || ($actionurl eq '/adm/testbank') ||
+              ($actionurl eq '/adm/imsimport')) {
+         my ($udom,$uname,$rest) = ($args->{'current_path'} =~ m{/priv/($match_domain)/($match_username)/?(.*)$});
+         $url = $Apache::lonnet::perlvar{'lonDocRoot'}."/priv/$udom/$uname/";
+         $toplevel = $url;
+         if ($rest ne '') {
+             $url .= $rest;
+         }
+     } elsif ($actionurl eq '/adm/coursedocs') {
+         if (ref($args) eq 'HASH') {
+             $url = $args->{'docs_url'};
+             $toplevel = $url;
+             if ($args->{'context'} eq 'paste') {
+                 ($cdom,$cnum) = ($url =~ m{^\Q/uploaded/\E($match_domain)/($match_courseid)/});
+                 ($path) =
+                     ($toplevel =~ m{^(\Q/uploaded/$cdom/$cnum/\E(?:docs|supplemental)/(?:default|\d+)/\d+)/});
+                 $fileloc = &Apache::lonnet::filelocation('',$toplevel);
+                 $fileloc =~ s{^/}{};
+             }
+         }
+     } elsif ($actionurl eq '/adm/dependencies')  {
+         if ($env{'request.course.id'} ne '') {
+             if (ref($args) eq 'HASH') {
+                 $url = $args->{'docs_url'};
+                 $title = $args->{'docs_title'};
+                 $toplevel = $url;
+                 unless ($toplevel =~ m{^/}) {
+                     $toplevel = "/$url";
+                 }
+                 ($rem) = ($toplevel =~ m{^(.+/)[^/]+$});
+                 if ($toplevel =~ m{^(\Q/uploaded/$cdom/$cnum/portfolio/syllabus\E)}) {
+                     $path = $1;
+                 } else {
+                     ($path) =
+                         ($toplevel =~ m{^(\Q/uploaded/$cdom/$cnum/\E(?:docs|supplemental)/(?:default|\d+)/\d+)/});
+                 }
+                 $fileloc = &Apache::lonnet::filelocation('',$toplevel);
+                 $fileloc =~ s{^/}{};
+                 ($filename) = ($fileloc =~ m{.+/([^/]+)$});
+                 $heading = &mt('Status of dependencies in [_1]',"$title ($filename)");
+             }
+         }
+     } elsif ($actionurl eq "/public/$cdom/$cnum/syllabus") {
+         $udom = $cdom;
+         $uname = $cnum;
+         $url = "/uploaded/$cdom/$cnum/portfolio/syllabus";
+         $toplevel = $url;
+         $path = $url;
+         $fileloc = &Apache::lonnet::filelocation('',$toplevel).'/';
+         $fileloc =~ s{^/}{};
+     }
+     foreach my $file (keys(%{$allfiles})) {
+         my $embed_file;
+         if (($path eq "/uploaded/$cdom/$cnum/portfolio/syllabus") && ($file =~ m{^\Q$path/\E(.+)$})) {
+             $embed_file = $1;
+         } else {
+             $embed_file = $file;
+         }
+         my $absolutepath;
+         if ($embed_file =~ m{^\w+://}) {
+             $newfiles{$embed_file} = 1;
+             $mapping{$embed_file} = $embed_file;
+         } else {
+             if ($embed_file =~ m{^/}) {
+                 $absolutepath = $embed_file;
+                 $embed_file =~ s{^(/+)}{};
+             }
+             if ($embed_file =~ m{/}) {
+                 my ($path,$fname) = ($embed_file =~ m{^(.+)/([^/]*)$});
+                 $path = &check_for_traversal($path,$url,$toplevel);
+                 my $item = $fname;
+                 if ($path ne '') {
+                     $item = $path.'/'.$fname;
+                     $subdependencies{$path}{$fname} = 1;
+                 } else {
+                     $dependencies{$item} = 1;
+                 }
+                 if ($absolutepath) {
+                     $mapping{$item} = $absolutepath;
+                 } else {
+                     $mapping{$item} = $embed_file;
+                 }
+             } else {
+                 $dependencies{$embed_file} = 1;
+                 if ($absolutepath) {
+                     $mapping{$embed_file} = $absolutepath;
+                 } else {
+                     $mapping{$embed_file} = $embed_file;
+                 }
+             }
+         }
+     }
+     my $dirptr = 16384;
+     foreach my $path (keys(%subdependencies)) {
+         $currsubfile{$path} = {};
+         if (($actionurl eq '/adm/portfolio') ||
+             ($actionurl eq '/adm/coursegrp_portfolio')) {
+             my ($sublistref,$listerror) =
+                 &Apache::lonnet::dirlist($url.$path,$udom,$uname,$getpropath);
+             if (ref($sublistref) eq 'ARRAY') {
+                 foreach my $line (@{$sublistref}) {
+                     my ($file_name,$rest) = split(/\&/,$line,2);
+                     $currsubfile{$path}{$file_name} = 1;
+                 }
+             }
+         } elsif (($actionurl eq '/adm/upload') || ($actionurl eq '/adm/testbank')) {
+             if (opendir(my $dir,$url.'/'.$path)) {
+                 my @subdir_list = grep(!/^\./,readdir($dir));
+                 map {$currsubfile{$path}{$_} = 1;} @subdir_list;
+             }
+         } elsif (($actionurl eq '/adm/dependencies') ||
+                  (($actionurl eq '/adm/coursedocs') && (ref($args) eq 'HASH') &&
+                   ($args->{'context'} eq 'paste')) ||
+                  ($actionurl eq "/public/$cdom/$cnum/syllabus")) {
+             if ($env{'request.course.id'} ne '') {
+                 my $dir;
+                 if ($actionurl eq "/public/$cdom/$cnum/syllabus") {
+                     $dir = $fileloc;
+                 } else {
+                     ($dir) = ($fileloc =~ m{^(.+/)[^/]+$});
+                 }
+                 if ($dir ne '') {
+                     my ($sublistref,$listerror) =
+                         &Apache::lonnet::dirlist($dir.$path,$cdom,$cnum,$getpropath,undef,'/');
+                     if (ref($sublistref) eq 'ARRAY') {
+                         foreach my $line (@{$sublistref}) {
+                             my ($file_name,$dom,undef,$testdir,undef,undef,undef,undef,$size,
+                                 undef,$mtime)=split(/\&/,$line,12);
+                             unless (($testdir&$dirptr) ||
+                                     ($file_name =~ /^\.\.?$/)) {
+                                 $currsubfile{$path}{$file_name} = [$size,$mtime];
+                             }
+                         }
+                     }
+                 }
+             }
+         }
+         foreach my $file (keys(%{$subdependencies{$path}})) {
+             if (exists($currsubfile{$path}{$file})) {
+                 my $item = $path.'/'.$file;
+                 unless ($mapping{$item} eq $item) {
+                     $pathchanges{$item} = 1;
+                 }
+                 $existing{$item} = 1;
+                 $numexisting ++;
+             } else {
+                 $newfiles{$path.'/'.$file} = 1;
+             }
+         }
+         if ($actionurl eq '/adm/dependencies') {
+             foreach my $path (keys(%currsubfile)) {
+                 if (ref($currsubfile{$path}) eq 'HASH') {
+                     foreach my $file (keys(%{$currsubfile{$path}})) {
+                          unless ($subdependencies{$path}{$file}) {
+                              next if (($rem ne '') &&
+                                       (($env{"httpref.$rem"."$path/$file"} ne '') ||
+                                        (ref($navmap) &&
+                                        (($navmap->getResourceByUrl($rem."$path/$file") ne '') ||
+                                         (($file =~ /^(.*\.s?html?)\.bak$/i) &&
+                                          ($navmap->getResourceByUrl($rem."$path/$1")))))));
+                              $unused{$path.'/'.$file} = 1;
+                          }
+                     }
+                 }
+             }
+         }
+     }
+     my %currfile;
+     if (($actionurl eq '/adm/portfolio') ||
+         ($actionurl eq '/adm/coursegrp_portfolio')) {
+         my ($dirlistref,$listerror) =
+             &Apache::lonnet::dirlist($url,$udom,$uname,$getpropath);
+         if (ref($dirlistref) eq 'ARRAY') {
+             foreach my $line (@{$dirlistref}) {
+                 my ($file_name,$rest) = split(/\&/,$line,2);
+                 $currfile{$file_name} = 1;
+             }
+         }
+     } elsif (($actionurl eq '/adm/upload') || ($actionurl eq '/adm/testbank')) {
+         if (opendir(my $dir,$url)) {
+             my @dir_list = grep(!/^\./,readdir($dir));
+             map {$currfile{$_} = 1;} @dir_list;
+         }
+     } elsif (($actionurl eq '/adm/dependencies') ||
+              (($actionurl eq '/adm/coursedocs') && (ref($args) eq 'HASH') &&
+               ($args->{'context'} eq 'paste')) ||
+              ($actionurl eq "/public/$cdom/$cnum/syllabus")) {
+         if ($env{'request.course.id'} ne '') {
+             my ($dir) = ($fileloc =~ m{^(.+/)[^/]+$});
+             if ($dir ne '') {
+                 my ($dirlistref,$listerror) =
+                     &Apache::lonnet::dirlist($dir,$cdom,$cnum,$getpropath,undef,'/');
+                 if (ref($dirlistref) eq 'ARRAY') {
+                     foreach my $line (@{$dirlistref}) {
+                         my ($file_name,$dom,undef,$testdir,undef,undef,undef,undef,
+                             $size,undef,$mtime)=split(/\&/,$line,12);
+                         unless (($testdir&$dirptr) ||
+                                 ($file_name =~ /^\.\.?$/)) {
+                             $currfile{$file_name} = [$size,$mtime];
+                         }
+                     }
+                 }
+             }
+         }
+     }
+     foreach my $file (keys(%dependencies)) {
+         if (exists($currfile{$file})) {
+             unless ($mapping{$file} eq $file) {
+                 $pathchanges{$file} = 1;
+             }
+             $existing{$file} = 1;
+             $numexisting ++;
+         } else {
+             $newfiles{$file} = 1;
+         }
+     }
+     foreach my $file (keys(%currfile)) {
+         unless (($file eq $filename) ||
+                 ($file eq $filename.'.bak') ||
+                 ($dependencies{$file})) {
+             if ($actionurl eq '/adm/dependencies') {
+                 unless ($toplevel =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus\E}) {
+                     next if (($rem ne '') &&
+                              (($env{"httpref.$rem".$file} ne '') ||
+                               (ref($navmap) &&
+                               (($navmap->getResourceByUrl($rem.$file) ne '') ||
+                                (($file =~ /^(.*\.s?html?)\.bak$/i) &&
+                                 ($navmap->getResourceByUrl($rem.$1)))))));
+                 }
+             }
+             $unused{$file} = 1;
+         }
+     }
+     if (($actionurl eq '/adm/coursedocs') && (ref($args) eq 'HASH') &&
+         ($args->{'context'} eq 'paste')) {
+         $counter = scalar(keys(%existing));
+         $numpathchg = scalar(keys(%pathchanges));
+         return ($output,$counter,$numpathchg,\%existing);
+     } elsif (($actionurl eq "/public/$cdom/$cnum/syllabus") &&
+              (ref($args) eq 'HASH') && ($args->{'context'} eq 'rewrites')) {
+         $counter = scalar(keys(%existing));
+         $numpathchg = scalar(keys(%pathchanges));
+         return ($output,$counter,$numpathchg,\%existing,\%mapping);
+     }
+     foreach my $embed_file (sort {lc($a) cmp lc($b)} keys(%newfiles)) {
+         if ($actionurl eq '/adm/dependencies') {
+             next if ($embed_file =~ m{^\w+://});
+         }
+         $upload_output .= &start_data_table_row().
+                           '<td valign="top"><img src="'.&icon($embed_file).'" />&nbsp;'.
+                           '<span class="LC_filename">'.$embed_file.'</span>';
+         unless ($mapping{$embed_file} eq $embed_file) {
+             $upload_output .= '<br /><span class="LC_info" style="font-size:smaller;">'.
+                               &mt('changed from: [_1]',$mapping{$embed_file}).'</span>';
+         }
+         $upload_output .= '</td>';
+         if ($args->{'ignore_remote_references'} && $embed_file =~ m{^\w+://}) {
+             $upload_output.='<td align="right">'.
+                             '<span class="LC_info LC_fontsize_medium">'.
+                             &mt("URL points to web address").'</span>';
+             $numremref++;
+         } elsif ($args->{'error_on_invalid_names'}
+             && $embed_file ne &Apache::lonnet::clean_filename($embed_file,{'keep_path' => 1,})) {
+             $upload_output.='<td align="right"><span class="LC_warning">'.
+                             &mt('Invalid characters').'</span>';
+             $numinvalid++;
+         } else {
+             $upload_output .= '<td>'.
+                               &embedded_file_element('upload_embedded',$counter,
+                                                      $embed_file,\%mapping,
+                                                      $allfiles,$codebase,'upload');
+             $counter ++;
+             $numnew ++;
+         }
+         $upload_output .= '</td>'.&Apache::loncommon::end_data_table_row()."\n";
+     }
+     foreach my $embed_file (sort {lc($a) cmp lc($b)} keys(%existing)) {
+         if ($actionurl eq '/adm/dependencies') {
+             my ($size,$mtime) = &get_dependency_details(\%currfile,\%currsubfile,$embed_file);
+             $modify_output .= &start_data_table_row().
+                               '<td><a href="'.$path.'/'.$embed_file.'" style="text-decoration:none;">'.
+                               '<img src="'.&icon($embed_file).'" border="0" />'.
+                               '&nbsp;<span class="LC_filename">'.$embed_file.'</span></a></td>'.
+                               '<td>'.$size.'</td>'.
+                               '<td>'.$mtime.'</td>'.
+                               '<td><label><input type="checkbox" name="mod_upload_dep" '.
+                               'onclick="toggleBrowse('."'$counter'".')" id="mod_upload_dep_'.
+                               $counter.'" value="'.$counter.'" />'.&mt('Yes').'</label>'.
+                               '<div id="moduploaddep_'.$counter.'" style="display:none;">'.
+                               &embedded_file_element('upload_embedded',$counter,
+                                                      $embed_file,\%mapping,
+                                                      $allfiles,$codebase,'modify').
+                               '</div></td>'.
+                               &end_data_table_row()."\n";
+             $counter ++;
+         } else {
+             $upload_output .= &start_data_table_row().
+                               '<td valign="top"><img src="'.&icon($embed_file).'" />&nbsp;'.
+                               '<span class="LC_filename">'.$embed_file.'</span></td>'.
+                               '<td align="right"><span class="LC_info LC_fontsize_medium">'.&mt('Already exists').'</span></td>'.
+                               &Apache::loncommon::end_data_table_row()."\n";
+         }
+     }
+     my $delidx = $counter;
+     foreach my $oldfile (sort {lc($a) cmp lc($b)} keys(%unused)) {
+         my ($size,$mtime) = &get_dependency_details(\%currfile,\%currsubfile,$oldfile);
+         $delete_output .= &start_data_table_row().
+                           '<td><img src="'.&icon($oldfile).'" />'.
+                           '&nbsp;<span class="LC_filename">'.$oldfile.'</span></td>'.
+                           '<td>'.$size.'</td>'.
+                           '<td>'.$mtime.'</td>'.
+                           '<td><label><input type="checkbox" name="del_upload_dep" '.
+                           ' value="'.$delidx.'" />'.&mt('Yes').'</label>'.
+                           &embedded_file_element('upload_embedded',$delidx,
+                                                  $oldfile,\%mapping,$allfiles,
+                                                  $codebase,'delete').'</td>'.
+                           &end_data_table_row()."\n";
+         $numunused ++;
+         $delidx ++;
+     }
+     if ($upload_output) {
+         $upload_output = &start_data_table().
+                          $upload_output.
+                          &end_data_table()."\n";
+     }
+     if ($modify_output) {
+         $modify_output = &start_data_table().
+                          &start_data_table_header_row().
+                          '<th>'.&mt('File').'</th>'.
+                          '<th>'.&mt('Size (KB)').'</th>'.
+                          '<th>'.&mt('Modified').'</th>'.
+                          '<th>'.&mt('Upload replacement?').'</th>'.
+                          &end_data_table_header_row().
+                          $modify_output.
+                          &end_data_table()."\n";
+     }
+     if ($delete_output) {
+         $delete_output = &start_data_table().
+                          &start_data_table_header_row().
+                          '<th>'.&mt('File').'</th>'.
+                          '<th>'.&mt('Size (KB)').'</th>'.
+                          '<th>'.&mt('Modified').'</th>'.
+                          '<th>'.&mt('Delete?').'</th>'.
+                          &end_data_table_header_row().
+                          $delete_output.
+                          &end_data_table()."\n";
+     }
+     my $applies = 0;
+     if ($numremref) {
+         $applies ++;
+     }
+     if ($numinvalid) {
+         $applies ++;
+     }
+     if ($numexisting) {
+         $applies ++;
+     }
+     if ($counter || $numunused) {
+         $output = '<form name="upload_embedded" action="'.$actionurl.'"'.
+                   ' method="post" enctype="multipart/form-data">'."\n".
+                   $state.'<h3>'.$heading.'</h3>';
+         if ($actionurl eq '/adm/dependencies') {
+             if ($numnew) {
+                 $output .= '<h4>'.&mt('Missing dependencies').'</h4>'.
+                            '<p>'.&mt('The following files need to be uploaded.').'</p>'."\n".
+                            $upload_output.'<br />'."\n";
+             }
+             if ($numexisting) {
+                 $output .= '<h4>'.&mt('Uploaded dependencies (in use)').'</h4>'.
+                            '<p>'.&mt('Upload a new file to replace the one currently in use.').'</p>'."\n".
+                            $modify_output.'<br />'."\n";
+                            $buttontext = &mt('Save changes');
+             }
+             if ($numunused) {
+                 $output .= '<h4>'.&mt('Unused files').'</h4>'.
+                            '<p>'.&mt('The following uploaded files are no longer used.').'</p>'."\n".
+                            $delete_output.'<br />'."\n";
+                            $buttontext = &mt('Save changes');
+             }
+         } else {
+             $output .= $upload_output.'<br />'."\n";
+         }
+         $output .= '<input type ="hidden" name="number_embedded_items" value="'.
+                    $counter.'" />'."\n";
+         if ($actionurl eq '/adm/dependencies') {
+             $output .= '<input type ="hidden" name="number_newemb_items" value="'.
+                        $numnew.'" />'."\n";
+         } elsif ($actionurl eq '') {
+             $output .=  '<input type="hidden" name="phase" value="three" />';
+         }
+     } elsif ($applies) {
+         $output = '<b>'.&mt('Referenced files').'</b>:<br />';
+         if ($applies > 1) {
+             $output .=
+                 &mt('No dependencies need to be uploaded, as one of the following applies to each reference:').'<ul>';
+             if ($numremref) {
+                 $output .= '<li>'.&mt('reference is to a URL which points to another server').'</li>'."\n";
+             }
+             if ($numinvalid) {
+                 $output .= '<li>'.&mt('reference is to file with a name containing invalid characters').'</li>'."\n";
+             }
+             if ($numexisting) {
+                 $output .= '<li>'.&mt('reference is to an existing file at the specified location').'</li>'."\n";
+             }
+             $output .= '</ul><br />';
+         } elsif ($numremref) {
+             $output .= '<p>'.&mt('None to upload, as all references are to URLs pointing to another server.').'</p>';
+         } elsif ($numinvalid) {
+             $output .= '<p>'.&mt('None to upload, as all references are to files with names containing invalid characters.').'</p>';
+         } elsif ($numexisting) {
+             $output .= '<p>'.&mt('None to upload, as all references are to existing files.').'</p>';
+         }
+         $output .= $upload_output.'<br />';
+     }
+     my ($pathchange_output,$chgcount);
+     $chgcount = $counter;
+     if (keys(%pathchanges) > 0) {
+         foreach my $embed_file (sort {lc($a) cmp lc($b)} keys(%pathchanges)) {
+             if ($counter) {
+                 $output .= &embedded_file_element('pathchange',$chgcount,
+                                                   $embed_file,\%mapping,
+                                                   $allfiles,$codebase,'change');
+             } else {
+                 $pathchange_output .=
+                     &start_data_table_row().
+                     '<td><input type ="checkbox" name="namechange" value="'.
+                     $chgcount.'" checked="checked" /></td>'.
+                     '<td>'.$mapping{$embed_file}.'</td>'.
+                     '<td>'.$embed_file.
+                     &embedded_file_element('pathchange',$numpathchg,$embed_file,
+                                            \%mapping,$allfiles,$codebase,'change').
+                     '</td>'.&end_data_table_row();
+             }
+             $numpathchg ++;
+             $chgcount ++;
+         }
+     }
+     if (($counter) || ($numunused)) {
+         if ($numpathchg) {
+             $output .= '<input type ="hidden" name="number_pathchange_items" value="'.
+                        $numpathchg.'" />'."\n";
+         }
+         if (($actionurl eq '/adm/upload') || ($actionurl eq '/adm/testbank') ||
+             ($actionurl eq '/adm/imsimport')) {
+             $output .= '<input type="hidden" name="phase" value="three" />'."\n";
+         } elsif ($actionurl eq '/adm/portfolio' || $actionurl eq '/adm/coursegrp_portfolio') {
+             $output .= '<input type="hidden" name="action" value="upload_embedded" />';
+         } elsif ($actionurl eq '/adm/dependencies') {
+             $output .= '<input type="hidden" name="action" value="process_changes" />';
+         }
+         $output .= '<input type ="submit" value="'.$buttontext.'" />'."\n".'</form>'."\n";
+     } elsif ($numpathchg) {
+         my %pathchange = ();
+         $output .= &modify_html_form('pathchange',$actionurl,$state,\%pathchange,$pathchange_output);
+         if (($actionurl eq '/adm/portfolio') || ($actionurl eq '/adm/coursegrp_portfolio')) {
+             $output .= '<p>'.&mt('or').'</p>';
+         }
+     }
+     return ($output,$counter,$numpathchg);
+ }
+ sub embedded_file_element {
+     my ($context,$num,$embed_file,$mapping,$allfiles,$codebase,$type) = @_;
+     return unless ((ref($mapping) eq 'HASH') && (ref($allfiles) eq 'HASH') &&
+                    (ref($codebase) eq 'HASH'));
+     my $output;
+     if (($context eq 'upload_embedded') && ($type ne 'delete')) {
+        $output = '<input name="embedded_item_'.$num.'" type="file" value="" />'."\n";
+     }
+     $output .= '<input name="embedded_orig_'.$num.'" type="hidden" value="'.
+                &escape($embed_file).'" />';
+     unless (($context eq 'upload_embedded') &&
+             ($mapping->{$embed_file} eq $embed_file)) {
+         $output .='
+         <input name="embedded_ref_'.$num.'" type="hidden" value="'.&escape($mapping->{$embed_file}).'" />';
+     }
+     my $attrib;
+     if (ref($allfiles->{$mapping->{$embed_file}}) eq 'ARRAY') {
+         $attrib = &escape(join(':',@{$allfiles->{$mapping->{$embed_file}}}));
+     }
+     $output .=
+         "\n\t\t".
+         '<input name="embedded_attrib_'.$num.'" type="hidden" value="'.
+         $attrib.'" />';
+     if (exists($codebase->{$mapping->{$embed_file}})) {
+         $output .=
+             "\n\t\t".
+             '<input name="codebase_'.$num.'" type="hidden" value="'.
+             &escape($codebase->{$mapping->{$embed_file}}).'" />';
+     }
+     return $output;
+ }
+ sub get_dependency_details {
+     my ($currfile,$currsubfile,$embed_file) = @_;
+     my ($size,$mtime,$showsize,$showmtime);
+     if ((ref($currfile) eq 'HASH') && (ref($currsubfile))) {
+         if ($embed_file =~ m{/}) {
+             my ($path,$fname) = split(/\//,$embed_file);
+             if (ref($currsubfile->{$path}{$fname}) eq 'ARRAY') {
+                 ($size,$mtime) = @{$currsubfile->{$path}{$fname}};
+             }
+         } else {
+             if (ref($currfile->{$embed_file}) eq 'ARRAY') {
+                 ($size,$mtime) = @{$currfile->{$embed_file}};
+             }
+         }
+         $showsize = $size/1024.0;
+         $showsize = sprintf("%.1f",$showsize);
+         if ($mtime > 0) {
+             $showmtime = &Apache::lonlocal::locallocaltime($mtime);
+         }
+     }
+     return ($showsize,$showmtime);
+ }
+ sub ask_embedded_js {
+     return <<"END";
+ <script type="text/javascript"">
+ // <![CDATA[
+ function toggleBrowse(counter) {
+     var chkboxid = document.getElementById('mod_upload_dep_'+counter);
+     var fileid = document.getElementById('embedded_item_'+counter);
+     var uploaddivid = document.getElementById('moduploaddep_'+counter);
+     if (chkboxid.checked == true) {
+         uploaddivid.style.display='block';
+     } else {
+         uploaddivid.style.display='none';
+         fileid.value = '';
+     }
+ }
+ // ]]>
+ </script>
+ END
+ }
+ sub upload_embedded {
+     my ($context,$dirpath,$uname,$udom,$dir_root,$url_root,$group,$disk_quota,
+         $current_disk_usage,$hiddenstate,$actionurl) = @_;
+     my (%pathchange,$output,$modifyform,$footer,$returnflag);
+     for (my $i=0; $i<$env{'form.number_embedded_items'}; $i++) {
+         next if (!exists($env{'form.embedded_item_'.$i.'.filename'}));
+         my $orig_uploaded_filename =
+             $env{'form.embedded_item_'.$i.'.filename'};
+         foreach my $type ('orig','ref','attrib','codebase') {
+             if ($env{'form.embedded_'.$type.'_'.$i} ne '') {
+                 $env{'form.embedded_'.$type.'_'.$i} =
+                     &unescape($env{'form.embedded_'.$type.'_'.$i});
+             }
+         }
+         my ($path,$fname) =
+             ($env{'form.embedded_orig_'.$i} =~ m{(.*/)([^/]*)});
+         # no path, whole string is fname
+         if (!$fname) { $fname = $env{'form.embedded_orig_'.$i} };
+         $fname = &Apache::lonnet::clean_filename($fname);
+         # See if there is anything left
+         next if ($fname eq '');
+         # Check if file already exists as a file or directory.
+         my ($state,$msg);
+         if ($context eq 'portfolio') {
+             my $port_path = $dirpath;
+             if ($group ne '') {
+                 $port_path = "groups/$group/$port_path";
+             }
+             ($state,$msg) = &check_for_upload($env{'form.currentpath'}.$path,
+                                               $fname,$group,'embedded_item_'.$i,
+                                               $dir_root,$port_path,$disk_quota,
+                                               $current_disk_usage,$uname,$udom);
+             if ($state eq 'will_exceed_quota'
+                 || $state eq 'file_locked') {
+                 $output .= $msg;
+                 next;
+             }
+         } elsif (($context eq 'author') || ($context eq 'testbank')) {
+             ($state,$msg) = &check_for_existing($path,$fname,'embedded_item_'.$i);
+             if ($state eq 'exists') {
+                 $output .= $msg;
+                 next;
+             }
+         }
+         # Check if extension is valid
+         if (($fname =~ /\.(\w+)$/) &&
+             (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
+             $output .= &mt('Invalid file extension ([_1]) - reserved for LONCAPA use - rename the file with a different extension and re-upload. ',$1).'<br />';
+             next;
+         } elsif (($fname =~ /\.(\w+)$/) &&
+                  (!defined(&Apache::loncommon::fileembstyle($1)))) {
+             $output .= &mt('Unrecognized file extension ([_1]) - rename the file with a proper extension and re-upload.',$1).'<br />';
+             next;
+         } elsif ($fname=~/\.(\d+)\.(\w+)$/) {
+             $output .= &mt('Filename not allowed - rename the file to remove the number immediately before the file extension([_1]) and re-upload.',$2).'<br />';
+             next;
+         }
+         $env{'form.embedded_item_'.$i.'.filename'}=$fname;
+         my $subdir = $path;
+         $subdir =~ s{/+$}{};
+         if ($context eq 'portfolio') {
+             my $result;
+             if ($state eq 'existingfile') {
+                 $result=
+                     &Apache::lonnet::userfileupload('embedded_item_'.$i,'existingfile',
+                                                     $dirpath.$env{'form.currentpath'}.$subdir);
+             } else {
+                 $result=
+                     &Apache::lonnet::userfileupload('embedded_item_'.$i,'',
+                                                     $dirpath.
+                                                     $env{'form.currentpath'}.$subdir);
+                 if ($result !~ m|^/uploaded/|) {
+                     $output .= '<span class="LC_error">'
+                                .&mt('An error occurred ([_1]) while trying to upload [_2] for embedded element [_3].'
+                                ,$result,$orig_uploaded_filename,$env{'form.embedded_orig_'.$i})
+                                .'</span><br />';
+                     next;
+                 } else {
+                     $output .= &mt('Uploaded [_1]','<span class="LC_filename">'.
+                                $path.$fname.'</span>').'<br />';
+                 }
+             }
+         } elsif (($context eq 'coursedoc') || ($context eq 'syllabus')) {
+             my $extendedsubdir = $dirpath.'/'.$subdir;
+             $extendedsubdir =~ s{/+$}{};
+             my $result =
+                 &Apache::lonnet::userfileupload('embedded_item_'.$i,$context,$extendedsubdir);
+             if ($result !~ m|^/uploaded/|) {
+                 $output .= '<span class="LC_error">'
+                            .&mt('An error occurred ([_1]) while trying to upload [_2] for embedded element [_3].'
+                            ,$result,$orig_uploaded_filename,$env{'form.embedded_orig_'.$i})
+                            .'</span><br />';
+                     next;
+             } else {
+                 $output .= &mt('Uploaded [_1]','<span class="LC_filename">'.
+                            $path.$fname.'</span>').'<br />';
+                 if ($context eq 'syllabus') {
+                     &Apache::lonnet::make_public_indefinitely($result);
+                 }
+             }
+         } else {
+ # Save the file
+             my $target = $env{'form.embedded_item_'.$i};
+             my $fullpath = $dir_root.$dirpath.'/'.$path;
+             my $dest = $fullpath.$fname;
+             my $url = $url_root.$dirpath.'/'.$path.$fname;
+             my @parts=split(/\//,"$dirpath/$path");
+             my $count;
+             my $filepath = $dir_root;
+             foreach my $subdir (@parts) {
+                 $filepath .= "/$subdir";
+                 if (!-e $filepath) {
+                     mkdir($filepath,0770);
+                 }
+             }
+             my $fh;
+             if (!open($fh,'>'.$dest)) {
+                 &Apache::lonnet::logthis('Failed to create '.$dest);
+                 $output .= '<span class="LC_error">'.
+                            &mt('An error occurred while trying to upload [_1] for embedded element [_2].',
+                                $orig_uploaded_filename,$env{'form.embedded_orig_'.$i}).
+                            '</span><br />';
+             } else {
+                 if (!print $fh $env{'form.embedded_item_'.$i}) {
+                     &Apache::lonnet::logthis('Failed to write to '.$dest);
+                     $output .= '<span class="LC_error">'.
+                               &mt('An error occurred while writing the file [_1] for embedded element [_2].',
+                                   $orig_uploaded_filename,$env{'form.embedded_orig_'.$i}).
+                               '</span><br />';
+                 } else {
+                     $output .= &mt('Uploaded [_1]','<span class="LC_filename">'.
+                                $url.'</span>').'<br />';
+                     unless ($context eq 'testbank') {
+                         $footer .= &mt('View embedded file: [_1]',
+                                        '<a href="'.$url.'">'.$fname.'</a>').'<br />';
+                     }
+                 }
+                 close($fh);
+             }
+         }
+         if ($env{'form.embedded_ref_'.$i}) {
+             $pathchange{$i} = 1;
+         }
+     }
+     if ($output) {
+         $output = '<p>'.$output.'</p>';
+     }
+     $output .= &modify_html_form('upload_embedded',$actionurl,$hiddenstate,\%pathchange);
+     $returnflag = 'ok';
+     my $numpathchgs = scalar(keys(%pathchange));
+     if ($numpathchgs > 0) {
+         if ($context eq 'portfolio') {
+             $output .= '<p>'.&mt('or').'</p>';
+         } elsif ($context eq 'testbank') {
+             $output .=  '<p>'.&mt('Or [_1]continue[_2] the testbank import without modifying the reference(s).',
+                                   '<a href="javascript:document.testbankForm.submit();">','</a>').'</p>';
+             $returnflag = 'modify_orightml';
+         }
+     }
+     return ($output.$footer,$returnflag,$numpathchgs);
+ }
+ sub modify_html_form {
+     my ($context,$actionurl,$hiddenstate,$pathchange,$pathchgtable) = @_;
+     my $end = 0;
+     my $modifyform;
+     if ($context eq 'upload_embedded') {
+         return unless (ref($pathchange) eq 'HASH');
+         if ($env{'form.number_embedded_items'}) {
+             $end += $env{'form.number_embedded_items'};
+         }
+         if ($env{'form.number_pathchange_items'}) {
+             $end += $env{'form.number_pathchange_items'};
+         }
+         if ($end) {
+             for (my $i=0; $i<$end; $i++) {
+                 if ($i < $env{'form.number_embedded_items'}) {
+                     next unless($pathchange->{$i});
+                 }
+                 $modifyform .=
+                     &start_data_table_row().
+                     '<td><input type ="checkbox" name="namechange" value="'.$i.'" '.
+                     'checked="checked" /></td>'.
+                     '<td>'.$env{'form.embedded_ref_'.$i}.
+                     '<input type="hidden" name="embedded_ref_'.$i.'" value="'.
+                     &escape($env{'form.embedded_ref_'.$i}).'" />'.
+                     '<input type="hidden" name="embedded_codebase_'.$i.'" value="'.
+                     &escape($env{'form.embedded_codebase_'.$i}).'" />'.
+                     '<input type="hidden" name="embedded_attrib_'.$i.'" value="'.
+                     &escape($env{'form.embedded_attrib_'.$i}).'" /></td>'.
+                     '<td>'.$env{'form.embedded_orig_'.$i}.
+                     '<input type="hidden" name="embedded_orig_'.$i.'" value="'.
+                     &escape($env{'form.embedded_orig_'.$i}).'" /></td>'.
+                     &end_data_table_row();
+             }
+         }
+     } else {
+         $modifyform = $pathchgtable;
+         if (($actionurl eq '/adm/upload') || ($actionurl eq '/adm/testbank')) {
+             $hiddenstate .= '<input type="hidden" name="phase" value="four" />';
+         } elsif (($actionurl eq '/adm/portfolio') || ($actionurl eq '/adm/coursegrp_portfolio')) {
+             $hiddenstate .= '<input type="hidden" name="action" value="modify_orightml" />';
+         }
+     }
+     if ($modifyform) {
+         if ($actionurl eq '/adm/dependencies') {
+             $hiddenstate .= '<input type="hidden" name="action" value="modifyhrefs" />';
+         }
+         return '<h3>'.&mt('Changes in content of HTML file required').'</h3>'."\n".
+                '<p>'.&mt('Changes need to be made to the reference(s) used for one or more of the dependencies, if your HTML file is to work correctly:').'<ol>'."\n".
+                '<li>'.&mt('For consistency between the reference(s) and the location of the corresponding stored file within LON-CAPA.').'</li>'."\n".
+                '<li>'.&mt('To change absolute paths to relative paths, or replace directory traversal via "../" within the original reference.').'</li>'."\n".
+                '</ol></p>'."\n".'<p>'.
+                &mt('LON-CAPA can make the required changes to your HTML file.').'</p>'."\n".
+                '<form method="post" name="refchanger" action="'.$actionurl.'">'.
+                &start_data_table()."\n".
+                &start_data_table_header_row().
+                '<th>'.&mt('Change?').'</th>'.
+                '<th>'.&mt('Current reference').'</th>'.
+                '<th>'.&mt('Required reference').'</th>'.
+                &end_data_table_header_row()."\n".
+                $modifyform.
+                &end_data_table().'<br />'."\n".$hiddenstate.
+                '<input type="submit" name="pathchanges" value="'.&mt('Modify HTML file').'" />'.
+                '</form>'."\n";
+     }
+     return;
+ }
+ sub modify_html_refs {
+     my ($context,$dirpath,$uname,$udom,$dir_root,$url) = @_;
+     my $container;
+     if ($context eq 'portfolio') {
+         $container = $env{'form.container'};
+     } elsif ($context eq 'coursedoc') {
+         $container = $env{'form.primaryurl'};
+     } elsif ($context eq 'manage_dependencies') {
+         (undef,undef,$container) = &Apache::lonnet::decode_symb($env{'form.symb'});
+         $container = "/$container";
+     } elsif ($context eq 'syllabus') {
+         $container = $url;
+     } else {
+         $container = $Apache::lonnet::perlvar{'lonDocRoot'}.$env{'form.filename'};
+     }
+     my (%allfiles,%codebase,$output,$content);
+     my @changes = &get_env_multiple('form.namechange');
+     unless ((@changes > 0) || ($context eq 'syllabus')) {
+         if (wantarray) {
+             return ('',0,0);
+         } else {
+             return;
+         }
+     }
+     if (($context eq 'portfolio') || ($context eq 'coursedoc') ||
+         ($context eq 'manage_dependencies') || ($context eq 'syllabus')) {
+         unless ($container =~ m{^/uploaded/\Q$udom\E/\Q$uname\E/}) {
+             if (wantarray) {
+                 return ('',0,0);
+             } else {
+                 return;
+             }
+         }
+         $content = &Apache::lonnet::getfile($container);
+         if ($content eq '-1') {
+             if (wantarray) {
+                 return ('',0,0);
+             } else {
+                 return;
+             }
+         }
+     } else {
+         unless ($container =~ /^\Q$dir_root\E/) {
+             if (wantarray) {
+                 return ('',0,0);
+             } else {
+                 return;
+             }
+         }
+         if (open(my $fh,"<$container")) {
+             $content = join('', <$fh>);
+             close($fh);
+         } else {
+             if (wantarray) {
+                 return ('',0,0);
+             } else {
+                 return;
+             }
+         }
+     }
+     my ($count,$codebasecount) = (0,0);
+     my $mm = new File::MMagic;
+     my $mime_type = $mm->checktype_contents($content);
+     if ($mime_type eq 'text/html') {
+         my $parse_result =
+             &Apache::lonnet::extract_embedded_items($container,\%allfiles,
+                                                     \%codebase,\$content);
+         if ($parse_result eq 'ok') {
+             foreach my $i (@changes) {
+                 my $orig = &unescape($env{'form.embedded_orig_'.$i});
+                 my $ref = &unescape($env{'form.embedded_ref_'.$i});
+                 if ($allfiles{$ref}) {
+                     my $newname =  $orig;
+                     my ($attrib_regexp,$codebase);
+                     $attrib_regexp = &unescape($env{'form.embedded_attrib_'.$i});
+                     if ($attrib_regexp =~ /:/) {
+                         $attrib_regexp =~ s/\:/|/g;
+                     }
+                     if ($content =~ m{($attrib_regexp\s*=\s*['"]?)\Q$ref\E(['"]?)}) {
+                         my $numchg = ($content =~ s{($attrib_regexp\s*=\s*['"]?)\Q$ref\E(['"]?)}{$1$newname$2}gi);
+                         $count += $numchg;
+                         $allfiles{$newname} = $allfiles{$ref};
+                     }
+                     if ($env{'form.embedded_codebase_'.$i} ne '') {
+                         $codebase = &unescape($env{'form.embedded_codebase_'.$i});
+                         my $numchg = ($content =~ s/(codebase\s*=\s*["']?)\Q$codebase\E(["']?)/$1.$2/i); #' stupid emacs
+                         $codebasecount ++;
+                     }
+                 }
+             }
+             my $skiprewrites;
+             if ($count || $codebasecount) {
+                 my $saveresult;
+                 if (($context eq 'portfolio') || ($context eq 'coursedoc') ||
+                     ($context eq 'manage_dependencies') || ($context eq 'syllabus')) {
+                     my $url = &Apache::lonnet::store_edited_file($container,$content,$udom,$uname,\$saveresult);
+                     if ($url eq $container) {
+                         my ($fname) = ($container =~ m{/([^/]+)$});
+                         $output = '<p>'.&mt('Updated [quant,_1,reference] in [_2].',
+                                             $count,'<span class="LC_filename">'.
+                                             $fname.'</span>').'</p>';
+                     } else {
+                          $output = '<p class="LC_error">'.
+                                    &mt('Error: update failed for: [_1].',
+                                    '<span class="LC_filename">'.
+                                    $container.'</span>').'</p>';
+                     }
+                     if ($context eq 'syllabus') {
+                         unless ($saveresult eq 'ok') {
+                             $skiprewrites = 1;
+                         }
+                     }
+                 } else {
+                     if (open(my $fh,">$container")) {
+                         print $fh $content;
+                         close($fh);
+                         $output = '<p>'.&mt('Updated [quant,_1,reference] in [_2].',
+                                   $count,'<span class="LC_filename">'.
+                                   $container.'</span>').'</p>';
+                     } else {
+                          $output = '<p class="LC_error">'.
+                                    &mt('Error: could not update [_1].',
+                                    '<span class="LC_filename">'.
+                                    $container.'</span>').'</p>';
+                     }
+                 }
+             }
+             if (($context eq 'syllabus') && (!$skiprewrites)) {
+                 my ($actionurl,$state);
+                 $actionurl = "/public/$udom/$uname/syllabus";
+                 my ($ignore,$num,$numpathchanges,$existing,$mapping) =
+                     &ask_for_embedded_content($actionurl,$state,\%allfiles,
+                                               \%codebase,
+                                               {'context' => 'rewrites',
+                                                'ignore_remote_references' => 1,});
+                 if (ref($mapping) eq 'HASH') {
+                     my $rewrites = 0;
+                     foreach my $key (keys(%{$mapping})) {
+                         next if ($key =~ m{^https?://});
+                         my $ref = $mapping->{$key};
+                         my $newname = "/uploaded/$udom/$uname/portfolio/syllabus/$key";
+                         my $attrib;
+                         if (ref($allfiles{$mapping->{$key}}) eq 'ARRAY') {
+                             $attrib = join('|',@{$allfiles{$mapping->{$key}}});
+                         }
+                         if ($content =~ m{($attrib\s*=\s*['"]?)\Q$ref\E(['"]?)}) {
+                             my $numchg = ($content =~ s{($attrib\s*=\s*['"]?)\Q$ref\E(['"]?)}{$1$newname$2}gi);
+                             $rewrites += $numchg;
+                         }
+                     }
+                     if ($rewrites) {
+                         my $saveresult;
+                         my $url = &Apache::lonnet::store_edited_file($container,$content,$udom,$uname,\$saveresult);
+                         if ($url eq $container) {
+                             my ($fname) = ($container =~ m{/([^/]+)$});
+                             $output .= '<p>'.&mt('Rewrote [quant,_1,link] as [quant,_1,absolute link] in [_2].',
+                                             $count,'<span class="LC_filename">'.
+                                             $fname.'</span>').'</p>';
+                         } else {
+                             $output .= '<p class="LC_error">'.
+                                        &mt('Error: could not update links in [_1].',
+                                        '<span class="LC_filename">'.
+                                        $container.'</span>').'</p>';
+                         }
+                     }
+                 }
+             }
+         } else {
+             &logthis('Failed to parse '.$container.
+                      ' to modify references: '.$parse_result);
+         }
+     }
+     if (wantarray) {
+         return ($output,$count,$codebasecount);
+     } else {
+         return $output;
+     }
+ }
+ sub check_for_existing {
+     my ($path,$fname,$element) = @_;
+     my ($state,$msg);
+     if (-d $path.'/'.$fname) {
+         $state = 'exists';
+         $msg = &mt('Unable to upload [_1]. A directory by that name was found in [_2].','<span class="LC_filename">'.$fname.'</span>',$path);
+     } elsif (-e $path.'/'.$fname) {
+         $state = 'exists';
+         $msg = &mt('Unable to upload [_1]. A file by that name was found in [_2].','<span class="LC_filename">'.$fname.'</span>',$path);
+     }
+     if ($state eq 'exists') {
+         $msg = '<span class="LC_error">'.$msg.'</span><br />';
+     }
+     return ($state,$msg);
+ }
+ sub check_for_upload {
+     my ($path,$fname,$group,$element,$portfolio_root,$port_path,
+         $disk_quota,$current_disk_usage,$uname,$udom) = @_;
+     my $filesize = length($env{'form.'.$element});
+     if (!$filesize) {
+         my $msg = '<span class="LC_error">'.
+                   &mt('Unable to upload [_1]. (size = [_2] bytes)',
+                       '<span class="LC_filename">'.$fname.'</span>',
+                       $filesize).'<br />'.
+                   &mt('Either the file you attempted to upload was empty, or your web browser was unable to read its contents.').'<br />'.
+                   '</span>';
+         return ('zero_bytes',$msg);
+     }
+     $filesize =  $filesize/1000; #express in k (1024?)
+     my $getpropath = 1;
+     my ($dirlistref,$listerror) =
+          &Apache::lonnet::dirlist($portfolio_root.$path,$udom,$uname,$getpropath);
+     my $found_file = 0;
+     my $locked_file = 0;
+     my @lockers;
+     my $navmap;
+     if ($env{'request.course.id'}) {
+         $navmap = Apache::lonnavmaps::navmap->new();
+     }
+     if (ref($dirlistref) eq 'ARRAY') {
+         foreach my $line (@{$dirlistref}) {
+             my ($file_name,$rest)=split(/\&/,$line,2);
+             if ($file_name eq $fname){
+                 $file_name = $path.$file_name;
+                 if ($group ne '') {
+                     $file_name = $group.$file_name;
+                 }
+                 $found_file = 1;
+                 if (&Apache::lonnet::is_locked($file_name,$udom,$uname,\@lockers) eq 'true') {
+                     foreach my $lock (@lockers) {
+                         if (ref($lock) eq 'ARRAY') {
+                             my ($symb,$crsid) = @{$lock};
+                             if ($crsid eq $env{'request.course.id'}) {
+                                 if (ref($navmap)) {
+                                     my $res = $navmap->getBySymb($symb);
+                                     foreach my $part (@{$res->parts()}) {
+                                         my ($slot_status,$slot_time,$slot_name)=$res->check_for_slot($part);
+                                         unless (($slot_status == $res->RESERVED) ||
+                                                 ($slot_status == $res->RESERVED_LOCATION)) {
+                                             $locked_file = 1;
+                                         }
+                                     }
+                                 } else {
+                                     $locked_file = 1;
+                                 }
+                             } else {
+                                 $locked_file = 1;
+                             }
+                         }
+                    }
+                 } else {
+                     my @info = split(/\&/,$rest);
+                     my $currsize = $info[6]/1000;
+                     if ($currsize < $filesize) {
+                         my $extra = $filesize - $currsize;
+                         if (($current_disk_usage + $extra) > $disk_quota) {
+                             my $msg = '<span class="LC_error">'.
+                                       &mt('Unable to upload [_1]. (size = [_2] kilobytes). Disk quota will be exceeded if existing (smaller) file with same name (size = [_3] kilobytes) is replaced.',
+                                           '<span class="LC_filename">'.$fname.'</span>',$filesize,$currsize).'</span>'.
+                                       '<br />'.&mt('Disk quota is [_1] kilobytes. Your current disk usage is [_2] kilobytes.',
+                                                    $disk_quota,$current_disk_usage);
+                             return ('will_exceed_quota',$msg);
+                         }
+                     }
+                 }
+             }
+         }
+     }
+     if (($current_disk_usage + $filesize) > $disk_quota){
+         my $msg = '<span class="LC_error">'.
+                 &mt('Unable to upload [_1]. (size = [_2] kilobytes). Disk quota will be exceeded.','<span class="LC_filename">'.$fname.'</span>',$filesize).'</span>'.
+                   '<br />'.&mt('Disk quota is [_1] kilobytes. Your current disk usage is [_2] kilobytes.',$disk_quota,$current_disk_usage);
+         return ('will_exceed_quota',$msg);
+     } elsif ($found_file) {
+         if ($locked_file) {
+             my $msg = '<span class="LC_error">';
+             $msg .= &mt('Unable to upload [_1]. A locked file by that name was found in [_2].','<span class="LC_filename">'.$fname.'</span>','<span class="LC_filename">'.$port_path.$env{'form.currentpath'}.'</span>');
+             $msg .= '</span><br />';
+             $msg .= &mt('You will be able to rename or delete existing [_1] after a grade has been assigned.','<span class="LC_filename">'.$fname.'</span>');
+             return ('file_locked',$msg);
+         } else {
+             my $msg = '<span class="LC_error">';
+             $msg .= &mt(' A file by that name: [_1] was found in [_2].','<span class="LC_filename">'.$fname.'</span>',$port_path.$env{'form.currentpath'});
+             $msg .= '</span>';
+             return ('existingfile',$msg);
+         }
+     }
+ }
+ sub check_for_traversal {
+     my ($path,$url,$toplevel) = @_;
+     my @parts=split(/\//,$path);
+     my $cleanpath;
+     my $fullpath = $url;
+     for (my $i=0;$i<@parts;$i++) {
+         next if ($parts[$i] eq '.');
+         if ($parts[$i] eq '..') {
+             $fullpath =~ s{([^/]+/)$}{};
+         } else {
+             $fullpath .= $parts[$i].'/';
+         }
+     }
+     if ($fullpath =~ /^\Q$url\E(.*)$/) {
+         $cleanpath = $1;
+     } elsif ($fullpath =~ /^\Q$toplevel\E(.*)$/) {
+         my $curr_toprel = $1;
+         my @parts = split(/\//,$curr_toprel);
+         my ($url_toprel) = ($url =~ /^\Q$toplevel\E(.*)$/);
+         my @urlparts = split(/\//,$url_toprel);
+         my $doubledots;
+         my $startdiff = -1;
+         for (my $i=0; $i<@urlparts; $i++) {
+             if ($startdiff == -1) {
+                 unless ($urlparts[$i] eq $parts[$i]) {
+                     $startdiff = $i;
+                     $doubledots .= '../';
+                 }
+             } else {
+                 $doubledots .= '../';
+             }
+         }
+         if ($startdiff > -1) {
+             $cleanpath = $doubledots;
+             for (my $i=$startdiff; $i<@parts; $i++) {
+                 $cleanpath .= $parts[$i].'/';
+             }
+         }
+     }
+     $cleanpath =~ s{(/)$}{};
+     return $cleanpath;
+ }
+ sub is_archive_file {
+     my ($mimetype) = @_;
+     if (($mimetype eq 'application/octet-stream') ||
+         ($mimetype eq 'application/x-stuffit') ||
+         ($mimetype =~ m{^application/(x\-)?(compressed|tar|zip|tgz|gz|gtar|gzip|gunzip|bz|bz2|bzip2)})) {
+         return 1;
+     }
+     return;
+ }
+ sub decompress_form {
+     my ($mimetype,$archiveurl,$action,$noextract,$hiddenelements,$dirlist) = @_;
+     my %lt = &Apache::lonlocal::texthash (
+         this => 'This file is an archive file.',
+         camt => 'This file is a Camtasia archive file.',
+         itsc => 'Its contents are as follows:',
+         youm => 'You may wish to extract its contents.',
+         extr => 'Extract contents',
+         auto => 'LON-CAPA can process the files automatically, or you can decide how each should be handled.',
+         proa => 'Process automatically?',
+         yes  => 'Yes',
+         no   => 'No',
+         fold => 'Title for folder containing movie',
+         movi => 'Title for page containing embedded movie',
+     );
+     my $fileloc = &Apache::lonnet::filelocation(undef,$archiveurl);
+     my ($is_camtasia,$topdir,%toplevel,@paths);
+     my $info = &list_archive_contents($fileloc,\@paths);
+     if (@paths) {
+         foreach my $path (@paths) {
+             $path =~ s{^/}{};
+             if ($path =~ m{^([^/]+)/$}) {
+                 $topdir = $1;
+             }
+             if ($path =~ m{^([^/]+)/}) {
+                 $toplevel{$1} = $path;
+             } else {
+                 $toplevel{$path} = $path;
+             }
+         }
+     }
+     if ($mimetype =~ m{^application/(x\-)?(compressed|zip)}) {
+         my @camtasia = ("$topdir/","$topdir/index.html",
+                         "$topdir/media/",
+                         "$topdir/media/$topdir.mp4",
+                         "$topdir/media/FirstFrame.png",
+                         "$topdir/media/player.swf",
+                         "$topdir/media/swfobject.js",
+                         "$topdir/media/expressInstall.swf");
+         my @diffs = &compare_arrays(\@paths,\@camtasia);
+         if (@diffs == 0) {
+             $is_camtasia = 1;
+         }
+     }
+     my $output;
+     if ($is_camtasia) {
+         $output = <<"ENDCAM";
+ <script type="text/javascript" language="Javascript">
+ // <![CDATA[
+ function camtasiaToggle() {
+     for (var i=0; i<document.uploaded_decompress.autoextract_camtasia.length; i++) {
+         if (document.uploaded_decompress.autoextract_camtasia[i].checked) {
+             if (document.uploaded_decompress.autoextract_camtasia[i].value == 1) {
+                 document.getElementById('camtasia_titles').style.display='block';
+             } else {
+                 document.getElementById('camtasia_titles').style.display='none';
+             }
+         }
+     }
+     return;
+ }
+ // ]]>
+ </script>
+ <p>$lt{'camt'}</p>
+ ENDCAM
+     } else {
+         $output = '<p>'.$lt{'this'};
+         if ($info eq '') {
+             $output .= ' '.$lt{'youm'}.'</p>'."\n";
+         } else {
+             $output .= ' '.$lt{'itsc'}.'</p>'."\n".
+                        '<div><pre>'.$info.'</pre></div>';
+         }
+     }
+     $output .= '<form name="uploaded_decompress" action="'.$action.'" method="post">'."\n";
+     my $duplicates;
+     my $num = 0;
+     if (ref($dirlist) eq 'ARRAY') {
+         foreach my $item (@{$dirlist}) {
+             if (ref($item) eq 'ARRAY') {
+                 if (exists($toplevel{$item->[0]})) {
+                     $duplicates .=
+                         &start_data_table_row().
+                         '<td><label><input type="radio" name="archive_overwrite_'.$num.'" '.
+                         'value="0" checked="checked" />'.&mt('No').'</label>'.
+                         '&nbsp;<label><input type="radio" name="archive_overwrite_'.$num.'" '.
+                         'value="1" />'.&mt('Yes').'</label>'.
+                         '<input type="hidden" name="archive_overwrite_name_'.$num.'" value="'.$item->[0].'" /></td>'."\n".
+                         '<td>'.$item->[0].'</td>';
+                     if ($item->[2]) {
+                         $duplicates .= '<td>'.&mt('Directory').'</td>';
+                     } else {
+                         $duplicates .= '<td>'.&mt('File').'</td>';
+                     }
+                     $duplicates .= '<td>'.$item->[3].'</td>'.
+                                    '<td>'.
+                                    &Apache::lonlocal::locallocaltime($item->[4]).
+                                    '</td>'.
+                                    &end_data_table_row();
+                     $num ++;
+                 }
+             }
+         }
+     }
+     my $itemcount;
+     if (@paths > 0) {
+         $itemcount = scalar(@paths);
+     } else {
+         $itemcount = 1;
+     }
+     if ($is_camtasia) {
+         $output .= $lt{'auto'}.'<br />'.
+                    '<span class="LC_nobreak">'.$lt{'proa'}.'<label>'.
+                    '<input type="radio" name="autoextract_camtasia" value="1" onclick="javascript:camtasiaToggle();" checked="checked" />'.
+                    $lt{'yes'}.'</label>&nbsp;<label>'.
+                    '<input type="radio" name="autoextract_camtasia" value="0" onclick="javascript:camtasiaToggle();" />'.
+                    $lt{'no'}.'</label></span><br />'.
+                    '<div id="camtasia_titles" style="display:block">'.
+                    &Apache::lonhtmlcommon::start_pick_box().
+                    &Apache::lonhtmlcommon::row_title($lt{'fold'}).
+                    '<input type="textbox" name="camtasia_foldername" value="'.$env{'form.comment'}.'" />'."\n".
+                    &Apache::lonhtmlcommon::row_closure().
+                    &Apache::lonhtmlcommon::row_title($lt{'movi'}).
+                    '<input type="textbox" name="camtasia_moviename" value="" />'."\n".
+                    &Apache::lonhtmlcommon::row_closure(1).
+                    &Apache::lonhtmlcommon::end_pick_box().
+                    '</div>';
+     }
+     $output .=
+         '<input type="hidden" name="archive_overwrite_total" value="'.$num.'" />'.
+         '<input type="hidden" name="archive_itemcount" value="'.$itemcount.'" />'.
+         "\n";
+     if ($duplicates ne '') {
+         $output .= '<p><span class="LC_warning">'.
+                    &mt('Warning: decompression of the archive will overwrite the following items which already exist:').'</span><br />'.
+                    &start_data_table().
+                    &start_data_table_header_row().
+                    '<th>'.&mt('Overwrite?').'</th>'.
+                    '<th>'.&mt('Name').'</th>'.
+                    '<th>'.&mt('Type').'</th>'.
+                    '<th>'.&mt('Size').'</th>'.
+                    '<th>'.&mt('Last modified').'</th>'.
+                    &end_data_table_header_row().
+                    $duplicates.
+                    &end_data_table().
+                    '</p>';
+     }
+     $output .= '<input type="hidden" name="archiveurl" value="'.$archiveurl.'" />'."\n";
+     if (ref($hiddenelements) eq 'HASH') {
+         foreach my $hidden (sort(keys(%{$hiddenelements}))) {
+             $output .= '<input type="hidden" name="'.$hidden.'" value="'.$hiddenelements->{$hidden}.'" />'."\n";
+         }
+     }
+     $output .= <<"END";
+ <br />
+ <input type="submit" name="decompress" value="$lt{'extr'}" />
+ </form>
+ $noextract
+ END
+     return $output;
+ }
+ sub decompression_utility {
+     my ($program) = @_;
+     my @utilities = ('tar','gunzip','bunzip2','unzip');
+     my $location;
+     if (grep(/^\Q$program\E$/,@utilities)) {
+         foreach my $dir ('/bin/','/usr/bin/','/usr/local/bin/','/sbin/',
+                          '/usr/sbin/') {
+             if (-x $dir.$program) {
+                 $location = $dir.$program;
+                 last;
+             }
+         }
+     }
+     return $location;
+ }
+ sub list_archive_contents {
+     my ($file,$pathsref) = @_;
+     my (@cmd,$output);
+     my $needsregexp;
+     if ($file =~ /\.zip$/) {
+         @cmd = (&decompression_utility('unzip'),"-l");
+         $needsregexp = 1;
+     } elsif (($file =~ m/\.tar\.gz$/) ||
+              ($file =~ /\.tgz$/)) {
+         @cmd = (&decompression_utility('tar'),"-ztf");
+     } elsif ($file =~ /\.tar\.bz2$/) {
+         @cmd = (&decompression_utility('tar'),"-jtf");
+     } elsif ($file =~ m|\.tar$|) {
+         @cmd = (&decompression_utility('tar'),"-tf");
+     }
+     if (@cmd) {
+         undef($!);
+         undef($@);
+         if (open(my $fh,"-|", @cmd, $file)) {
+             while (my $line = <$fh>) {
+                 $output .= $line;
+                 chomp($line);
+                 my $item;
+                 if ($needsregexp) {
+                     ($item) = ($line =~ /^\s*\d+\s+[\d\-]+\s+[\d:]+\s*(.+)$/);
+                 } else {
+                     $item = $line;
+                 }
+                 if ($item ne '') {
+                     unless (grep(/^\Q$item\E$/,@{$pathsref})) {
+                         push(@{$pathsref},$item);
+                     }
+                 }
+             }
+             close($fh);
+         }
+     }
+     return $output;
+ }
+ sub decompress_uploaded_file {
+     my ($file,$dir) = @_;
+     &Apache::lonnet::appenv({'cgi.file' => $file});
+     &Apache::lonnet::appenv({'cgi.dir' => $dir});
+     my $result = &Apache::lonnet::ssi_body('/cgi-bin/decompress.pl');
+     my ($handle) = ($env{'user.environment'} =~m{/([^/]+)\.id$});
+     my $lonidsdir = $Apache::lonnet::perlvar{'lonIDsDir'};
+     &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle,1);
+     my $decompressed = $env{'cgi.decompressed'};
+     &Apache::lonnet::delenv('cgi.file');
+     &Apache::lonnet::delenv('cgi.dir');
+     &Apache::lonnet::delenv('cgi.decompressed');
+     return ($decompressed,$result);
+ }
+ sub process_decompression {
+     my ($docudom,$docuname,$file,$destination,$dir_root,$hiddenelem) = @_;
+     my ($dir,$error,$warning,$output);
+     if ($file !~ /\.(zip|tar|bz2|gz|tar.gz|tar.bz2|tgz)$/) {
+         $error = &mt('Filename not a supported archive file type.').
+                  '<br />'.&mt('Filename should end with one of: [_1].',
+                               '.zip, .tar, .bz2, .gz, .tar.gz, .tar.bz2, .tgz');
+     } else {
+         my $docuhome = &Apache::lonnet::homeserver($docuname,$docudom);
+         if ($docuhome eq 'no_host') {
+             $error = &mt('Could not determine home server for course.');
+         } else {
+             my @ids=&Apache::lonnet::current_machine_ids();
+             my $currdir = "$dir_root/$destination";
+             if (grep(/^\Q$docuhome\E$/,@ids)) {
+                 $dir = &LONCAPA::propath($docudom,$docuname).
+                        "$dir_root/$destination";
+             } else {
+                 $dir = $Apache::lonnet::perlvar{'lonDocRoot'}.
+                        "$dir_root/$docudom/$docuname/$destination";
+                 unless (&Apache::lonnet::repcopy_userfile("$dir/$file") eq 'ok') {
+                     $error = &mt('Archive file not found.');
+                 }
+             }
+             my (@to_overwrite,@to_skip);
+             if ($env{'form.archive_overwrite_total'} > 0) {
+                 my $total = $env{'form.archive_overwrite_total'};
+                 for (my $i=0; $i<$total; $i++) {
+                     if ($env{'form.archive_overwrite_'.$i} == 1) {
+                         push(@to_overwrite,$env{'form.archive_overwrite_name_'.$i});
+                     } elsif ($env{'form.archive_overwrite_'.$i} == 0) {
+                         push(@to_skip,$env{'form.archive_overwrite_name_'.$i});
+                     }
+                 }
+             }
+             my $numskip = scalar(@to_skip);
+             if (($numskip > 0) &&
+                 ($numskip == $env{'form.archive_itemcount'})) {
+                 $warning = &mt('All items in the archive file already exist, and no overwriting of existing files has been requested.');
+             } elsif ($dir eq '') {
+                 $error = &mt('Directory containing archive file unavailable.');
+             } elsif (!$error) {
+                 my ($decompressed,$display);
+                 if ($numskip > 0) {
+                     my $tempdir = time.'_'.$$.int(rand(10000));
+                     mkdir("$dir/$tempdir",0755);
+                     system("mv $dir/$file $dir/$tempdir/$file");
+                     ($decompressed,$display) =
+                         &decompress_uploaded_file($file,"$dir/$tempdir");
+                     foreach my $item (@to_skip) {
+                         if (($item ne '') && ($item !~ /\.\./)) {
+                             if (-f "$dir/$tempdir/$item") {
+                                 unlink("$dir/$tempdir/$item");
+                             } elsif (-d "$dir/$tempdir/$item") {
+                                 system("rm -rf $dir/$tempdir/$item");
+                             }
+                         }
+                     }
+                     system("mv $dir/$tempdir/* $dir");
+                     rmdir("$dir/$tempdir");
+                 } else {
+                     ($decompressed,$display) =
+                         &decompress_uploaded_file($file,$dir);
+                 }
+                 if ($decompressed eq 'ok') {
+                     $output = '<p class="LC_info">'.
+                               &mt('Files extracted successfully from archive.').
+                               '</p>'."\n";
+                     my ($warning,$result,@contents);
+                     my ($newdirlistref,$newlisterror) =
+                         &Apache::lonnet::dirlist($currdir,$docudom,
+                                                  $docuname,1);
+                     my (%is_dir,%changes,@newitems);
+                     my $dirptr = 16384;
+                     if (ref($newdirlistref) eq 'ARRAY') {
+                         foreach my $dir_line (@{$newdirlistref}) {
+                             my ($item,undef,undef,$testdir)=split(/\&/,$dir_line,5);
+                             unless (($item =~ /^\.+$/) || ($item eq $file) ||
+                                     ((@to_skip > 0) && (grep(/^\Q$item\E$/,@to_skip)))) {
+                                 push(@newitems,$item);
+                                 if ($dirptr&$testdir) {
+                                     $is_dir{$item} = 1;
+                                 }
+                                 $changes{$item} = 1;
+                             }
+                         }
+                     }
+                     if (keys(%changes) > 0) {
+                         foreach my $item (sort(@newitems)) {
+                             if ($changes{$item}) {
+                                 push(@contents,$item);
+                             }
+                         }
+                     }
+                     if (@contents > 0) {
+                         my $wantform;
+                         unless ($env{'form.autoextract_camtasia'}) {
+                             $wantform = 1;
+                         }
+                         my (%children,%parent,%dirorder,%titles);
+                         my ($count,$datatable) = &get_extracted($docudom,$docuname,
+                                                                 $currdir,\%is_dir,
+                                                                 \%children,\%parent,
+                                                                 \@contents,\%dirorder,
+                                                                 \%titles,$wantform);
+                         if ($datatable ne '') {
+                             $output .= &archive_options_form('decompressed',$datatable,
+                                                              $count,$hiddenelem);
+                             my $startcount = 6;
+                             $output .= &archive_javascript($startcount,$count,
+                                                            \%titles,\%children);
+                         }
+                         if ($env{'form.autoextract_camtasia'}) {
+                             my %displayed;
+                             my $total = 1;
+                             $env{'form.archive_directory'} = [];
+                             foreach my $i (sort { $a <=> $b } keys(%dirorder)) {
+                                 my $path = join('/',map { $titles{$_}; } @{$dirorder{$i}});
+                                 $path =~ s{/$}{};
+                                 my $item;
+                                 if ($path ne '') {
+                                     $item = "$path/$titles{$i}";
+                                 } else {
+                                     $item = $titles{$i};
+                                 }
+                                 $env{'form.archive_content_'.$i} = "$dir_root/$destination/$item";
+                                 if ($item eq $contents[0]) {
+                                     push(@{$env{'form.archive_directory'}},$i);
+                                     $env{'form.archive_'.$i} = 'display';
+                                     $env{'form.archive_title_'.$i} = $env{'form.camtasia_foldername'};
+                                     $displayed{'folder'} = $i;
+                                 } elsif ($item eq "$contents[0]/index.html") {
+                                     $env{'form.archive_'.$i} = 'display';
+                                     $env{'form.archive_title_'.$i} = $env{'form.camtasia_moviename'};
+                                     $displayed{'web'} = $i;
+                                 } else {
+                                     if ($item eq "$contents[0]/media") {
+                                         push(@{$env{'form.archive_directory'}},$i);
+                                     }
+                                     $env{'form.archive_'.$i} = 'dependency';
+                                 }
+                                 $total ++;
+                             }
+                             for (my $i=1; $i<$total; $i++) {
+                                 next if ($i == $displayed{'web'});
+                                 next if ($i == $displayed{'folder'});
+                                 $env{'form.archive_dependent_on_'.$i} = $displayed{'web'};
+                             }
+                             $env{'form.phase'} = 'decompress_cleanup';
+                             $env{'form.archivedelete'} = 1;
+                             $env{'form.archive_count'} = $total-1;
+                             $output .=
+                                 &process_extracted_files('coursedocs',$docudom,
+                                                          $docuname,$destination,
+                                                          $dir_root,$hiddenelem);
+                         }
+                     } else {
+                         $warning = &mt('No new items extracted from archive file.');
+                     }
+                 } else {
+                     $output = $display;
+                     $error = &mt('An error occurred during extraction from the archive file.');
+                 }
+             }
+         }
+     }
+     if ($error) {
+         $output .= '<p class="LC_error">'.&mt('Not extracted.').'<br />'.
+                    $error.'</p>'."\n";
+     }
+     if ($warning) {
+         $output .= '<p class="LC_warning">'.$warning.'</p>'."\n";
+     }
+     return $output;
+ }
+ sub get_extracted {
+     my ($docudom,$docuname,$currdir,$is_dir,$children,$parent,$contents,$dirorder,
+         $titles,$wantform) = @_;
+     my $count = 0;
+     my $depth = 0;
+     my $datatable;
+     my @hierarchy;
+     return unless ((ref($is_dir) eq 'HASH') && (ref($children) eq 'HASH') &&
+                    (ref($parent) eq 'HASH') && (ref($contents) eq 'ARRAY') &&
+                    (ref($dirorder) eq 'HASH') && (ref($titles) eq 'HASH'));
+     foreach my $item (@{$contents}) {
+         $count ++;
+         @{$dirorder->{$count}} = @hierarchy;
+         $titles->{$count} = $item;
+         &archive_hierarchy($depth,$count,$parent,$children);
+         if ($wantform) {
+             $datatable .= &archive_row($is_dir->{$item},$item,
+                                        $currdir,$depth,$count);
+         }
+         if ($is_dir->{$item}) {
+             $depth ++;
+             push(@hierarchy,$count);
+             $parent->{$depth} = $count;
+             $datatable .=
+                 &recurse_extracted_archive("$currdir/$item",$docudom,$docuname,
+                                            \$depth,\$count,\@hierarchy,$dirorder,
+                                            $children,$parent,$titles,$wantform);
+             $depth --;
+             pop(@hierarchy);
+         }
+     }
+     return ($count,$datatable);
+ }
+ sub recurse_extracted_archive {
+     my ($currdir,$docudom,$docuname,$depth,$count,$hierarchy,$dirorder,
+         $children,$parent,$titles,$wantform) = @_;
+     my $result='';
+     unless ((ref($depth)) && (ref($count)) && (ref($hierarchy) eq 'ARRAY') &&
+             (ref($children) eq 'HASH') && (ref($parent) eq 'HASH') &&
+             (ref($dirorder) eq 'HASH')) {
+         return $result;
+     }
+     my $dirptr = 16384;
+     my ($newdirlistref,$newlisterror) =
+         &Apache::lonnet::dirlist($currdir,$docudom,$docuname,1);
+     if (ref($newdirlistref) eq 'ARRAY') {
+         foreach my $dir_line (@{$newdirlistref}) {
+             my ($item,undef,undef,$testdir)=split(/\&/,$dir_line,5);
+             unless ($item =~ /^\.+$/) {
+                 $$count ++;
+                 @{$dirorder->{$$count}} = @{$hierarchy};
+                 $titles->{$$count} = $item;
+                 &archive_hierarchy($$depth,$$count,$parent,$children);
+                 my $is_dir;
+                 if ($dirptr&$testdir) {
+                     $is_dir = 1;
+                 }
+                 if ($wantform) {
+                     $result .= &archive_row($is_dir,$item,$currdir,$$depth,$$count);
+                 }
+                 if ($is_dir) {
+                     $$depth ++;
+                     push(@{$hierarchy},$$count);
+                     $parent->{$$depth} = $$count;
+                     $result .=
+                         &recurse_extracted_archive("$currdir/$item",$docudom,
+                                                    $docuname,$depth,$count,
+                                                    $hierarchy,$dirorder,$children,
+                                                    $parent,$titles,$wantform);
+                     $$depth --;
+                     pop(@{$hierarchy});
+                 }
+             }
+         }
+     }
+     return $result;
+ }
+ sub archive_hierarchy {
+     my ($depth,$count,$parent,$children) =@_;
+     if ((ref($parent) eq 'HASH') && (ref($children) eq 'HASH')) {
+         if (exists($parent->{$depth})) {
+              $children->{$parent->{$depth}} .= $count.':';
+         }
+     }
+     return;
+ }
+ sub archive_row {
+     my ($is_dir,$item,$currdir,$depth,$count) = @_;
+     my ($name) = ($item =~ m{([^/]+)$});
+     my %choices = &Apache::lonlocal::texthash (
+                                        'display'    => 'Add as file',
+                                        'dependency' => 'Include as dependency',
+                                        'discard'    => 'Discard',
+                                       );
+     if ($is_dir) {
+         $choices{'display'} = &mt('Add as folder');
+     }
+     my $output = &start_data_table_row().'<td align="right">'.$count.'</td>'."\n";
+     my $offset = 0;
+     foreach my $action ('display','dependency','discard') {
+         $offset ++;
+         if ($action ne 'display') {
+             $offset ++;
+         }
+         $output .= '<td><span class="LC_nobreak">'.
+                    '<label><input type="radio" name="archive_'.$count.
+                    '" id="archive_'.$action.'_'.$count.'" value="'.$action.'"';
+         my $text = $choices{$action};
+         if ($is_dir) {
+             $output .= ' onclick="javascript:propagateCheck(this.form,'."'$count'".');"';
+             if ($action eq 'display') {
+                 $text = &mt('Add as folder');
+             }
+         } else {
+             $output .= ' onclick="javascript:dependencyCheck(this.form,'."$count,$offset".');"';
+         }
+         $output .= ' />&nbsp;'.$choices{$action}.'</label></span>';
+         if ($action eq 'dependency') {
+             $output .= '<div id="arc_depon_'.$count.'" style="display:none;">'."\n".
+                        &mt('Used by:').'&nbsp;<select name="archive_dependent_on_'.$count.'" '.
+                        'onchange="propagateSelect(this.form,'."$count,$offset".')">'."\n".
+                        '<option value=""></option>'."\n".
+                        '</select>'."\n".
+                        '</div>';
+         } elsif ($action eq 'display') {
+             $output .= '<div id="arc_title_'.$count.'" style="display:none;">'."\n".
+                        &mt('Title:').'&nbsp;<input type="text" name="archive_title_'.$count.'" id="archive_title_'.$count.'" />'."\n".
+                        '</div>';
+         }
+         $output .= '</td>';
+     }
+     $output .= '<td><input type="hidden" name="archive_content_'.$count.'" value="'.
+                &HTML::Entities::encode("$currdir/$item",'"<>&').'" />'.('&nbsp;' x 2);
+     for (my $i=0; $i<$depth; $i++) {
+         $output .= ('<img src="/adm/lonIcons/whitespace1.gif" class="LC_docs_spacer" alt="" />' x2)."\n";
+     }
+     if ($is_dir) {
+         $output .= '<img src="/adm/lonIcons/navmap.folder.open.gif" alt="" />&nbsp;'."\n".
+                    '<input type="hidden" name="archive_directory" value="'.$count.'" />'."\n";
+     } else {
+         $output .= '<input type="hidden" name="archive_file" value="'.$count.'" />'."\n";
+     }
+     $output .= '&nbsp;'.$name.'</td>'."\n".
+                &end_data_table_row();
+     return $output;
+ }
+ sub archive_options_form {
+     my ($form,$display,$count,$hiddenelem) = @_;
+     my %lt = &Apache::lonlocal::texthash(
+                perm => 'Permanently remove archive file?',
+                hows => 'How should each extracted item be incorporated in the course?',
+                cont => 'Content actions for all',
+                addf => 'Add as folder/file',
+                incd => 'Include as dependency for a displayed file',
+                disc => 'Discard',
+                no   => 'No',
+                yes  => 'Yes',
+                save => 'Save',
+     );
+     my $output = <<"END";
+ <form name="$form" method="post" action="">
+ <p><span class="LC_nobreak">$lt{'perm'}&nbsp;
+ <label>
+   <input type="radio" name="archivedelete" value="0" checked="checked" />$lt{'no'}
+ </label>
+ &nbsp;
+ <label>
+   <input type="radio" name="archivedelete" value="1" />$lt{'yes'}</label>
+ </span>
+ </p>
+ <input type="hidden" name="phase" value="decompress_cleanup" />
+ <br />$lt{'hows'}
+ <div class="LC_columnSection">
+   <fieldset>
+     <legend>$lt{'cont'}</legend>
+     <input type="button" value="$lt{'addf'}" onclick="javascript:checkAll(document.$form,'display');" />
+     &nbsp;&nbsp;<input type="button" value="$lt{'incd'}" onclick="javascript:checkAll(document.$form,'dependency');" />
+     &nbsp;&nbsp;<input type="button" value="$lt{'disc'}" onclick="javascript:checkAll(document.$form,'discard');" />
+   </fieldset>
+ </div>
+ END
+     return $output.
+            &start_data_table()."\n".
+            $display."\n".
+            &end_data_table()."\n".
+            '<input type="hidden" name="archive_count" value="'.$count.'" />'.
+            $hiddenelem.
+            '<br /><input type="submit" name="archive_submit" value="'.$lt{'save'}.'" />'.
+            '</form>';
+ }
+ sub archive_javascript {
+     my ($startcount,$numitems,$titles,$children) = @_;
+     return unless ((ref($titles) eq 'HASH') && (ref($children) eq 'HASH'));
+     my $maintitle = $env{'form.comment'};
+     my $scripttag = <<START;
+ <script type="text/javascript">
+ // <![CDATA[
+ function checkAll(form,prefix) {
+     var idstr =  new RegExp("^archive_"+prefix+"_\\\\d+\$");
+     for (var i=0; i < form.elements.length; i++) {
+         var id = form.elements[i].id;
+         if ((id != '') && (id != undefined)) {
+             if (idstr.test(id)) {
+                 if (form.elements[i].type == 'radio') {
+                     form.elements[i].checked = true;
+                     var nostart = i-$startcount;
+                     var offset = nostart%7;
+                     var count = (nostart-offset)/7;
+                     dependencyCheck(form,count,offset);
+                 }
+             }
+         }
+     }
+ }
+ function propagateCheck(form,count) {
+     if (count > 0) {
+         var startelement = $startcount + ((count-1) * 7);
+         for (var j=1; j<6; j++) {
+             if ((j != 2) && (j != 4)) {
+                 var item = startelement + j;
+                 if (form.elements[item].type == 'radio') {
+                     if (form.elements[item].checked) {
+                         containerCheck(form,count,j);
+                         break;
+                     }
+                 }
+             }
+         }
+     }
+ }
+ numitems = $numitems
+ var titles = new Array(numitems);
+ var parents = new Array(numitems);
+ for (var i=0; i<numitems; i++) {
+     parents[i] = new Array;
+ }
+ var maintitle = '$maintitle';
+ START
+     foreach my $container (sort { $a <=> $b } (keys(%{$children}))) {
+         my @contents = split(/:/,$children->{$container});
+         for (my $i=0; $i<@contents; $i ++) {
+             $scripttag .= 'parents['.$container.']['.$i.'] = '.$contents[$i]."\n";
+         }
+     }
+     foreach my $key (sort { $a <=> $b } (keys(%{$titles}))) {
+         $scripttag .= "titles[$key] = '".$titles->{$key}."';\n";
+     }
+     $scripttag .= <<END;
+ function containerCheck(form,count,offset) {
+     if (count > 0) {
+         dependencyCheck(form,count,offset);
+         var item = (offset+$startcount)+7*(count-1);
+         form.elements[item].checked = true;
+         if(Object.prototype.toString.call(parents[count]) === '[object Array]') {
+             if (parents[count].length > 0) {
+                 for (var j=0; j<parents[count].length; j++) {
+                     containerCheck(form,parents[count][j],offset);
+                 }
+             }
+         }
+     }
+ }
+ function dependencyCheck(form,count,offset) {
+     if (count > 0) {
+         var chosen = (offset+$startcount)+7*(count-1);
+         var depitem = $startcount + ((count-1) * 7) + 4;
+         var currtype = form.elements[depitem].type;
+         if (form.elements[chosen].value == 'dependency') {
+             document.getElementById('arc_depon_'+count).style.display='block';
+             form.elements[depitem].options.length = 0;
+             form.elements[depitem].options[0] = new Option('Select','',true,true);
+             for (var i=1; i<=numitems; i++) {
+                 if (i == count) {
+                     continue;
+                 }
+                 var startelement = $startcount + (i-1) * 7;
+                 for (var j=1; j<6; j++) {
+                     if ((j != 2) && (j!= 4)) {
+                         var item = startelement + j;
+                         if (form.elements[item].type == 'radio') {
+                             if (form.elements[item].checked) {
+                                 if (form.elements[item].value == 'display') {
+                                     var n = form.elements[depitem].options.length;
+                                     form.elements[depitem].options[n] = new Option(titles[i],i,false,false);
+                                 }
+                             }
+                         }
+                     }
+                 }
+             }
+         } else {
+             document.getElementById('arc_depon_'+count).style.display='none';
+             form.elements[depitem].options.length = 0;
+             form.elements[depitem].options[0] = new Option('Select','',true,true);
+         }
+         titleCheck(form,count,offset);
+     }
+ }
+ function propagateSelect(form,count,offset) {
+     if (count > 0) {
+         var item = (1+offset+$startcount)+7*(count-1);
+         var picked = form.elements[item].options[form.elements[item].selectedIndex].value;
+         if (Object.prototype.toString.call(parents[count]) === '[object Array]') {
+             if (parents[count].length > 0) {
+                 for (var j=0; j<parents[count].length; j++) {
+                     containerSelect(form,parents[count][j],offset,picked);
+                 }
+             }
+         }
+     }
+ }
+ function containerSelect(form,count,offset,picked) {
+     if (count > 0) {
+         var item = (offset+$startcount)+7*(count-1);
+         if (form.elements[item].type == 'radio') {
+             if (form.elements[item].value == 'dependency') {
+                 if (form.elements[item+1].type == 'select-one') {
+                     for (var i=0; i<form.elements[item+1].options.length; i++) {
+                         if (form.elements[item+1].options[i].value == picked) {
+                             form.elements[item+1].selectedIndex = i;
+                             break;
+                         }
+                     }
+                 }
+                 if (Object.prototype.toString.call(parents[count]) === '[object Array]') {
+                     if (parents[count].length > 0) {
+                         for (var j=0; j<parents[count].length; j++) {
+                             containerSelect(form,parents[count][j],offset,picked);
+                         }
+                     }
+                 }
+             }
+         }
+     }
+ }
+ function titleCheck(form,count,offset) {
+     if (count > 0) {
+         var chosen = (offset+$startcount)+7*(count-1);
+         var depitem = $startcount + ((count-1) * 7) + 2;
+         var currtype = form.elements[depitem].type;
+         if (form.elements[chosen].value == 'display') {
+             document.getElementById('arc_title_'+count).style.display='block';
+             if ((count==1) && ((parents[count].length > 0) || (numitems == 1))) {
+                 document.getElementById('archive_title_'+count).value=maintitle;
+             }
+         } else {
+             document.getElementById('arc_title_'+count).style.display='none';
+             if (currtype == 'text') {
+                 document.getElementById('archive_title_'+count).value='';
+             }
+         }
+     }
+     return;
+ }
+ // ]]>
+ </script>
+ END
+     return $scripttag;
+ }
+ sub process_extracted_files {
+     my ($context,$docudom,$docuname,$destination,$dir_root,$hiddenelem) = @_;
+     my $numitems = $env{'form.archive_count'};
+     return unless ($numitems);
+     my @ids=&Apache::lonnet::current_machine_ids();
+     my ($prefix,$pathtocheck,$dir,$ishome,$error,$warning,%toplevelitems,%is_dir,
+         %folders,%containers,%mapinner,%prompttofetch);
+     my $docuhome = &Apache::lonnet::homeserver($docuname,$docudom);
+     if (grep(/^\Q$docuhome\E$/,@ids)) {
+         $prefix = &LONCAPA::propath($docudom,$docuname);
+         $pathtocheck = "$dir_root/$destination";
+         $dir = $dir_root;
+         $ishome = 1;
+     } else {
+         $prefix = $Apache::lonnet::perlvar{'lonDocRoot'};
+         $pathtocheck = "$dir_root/$docudom/$docuname/$destination";
+         $dir = "$dir_root/$docudom/$docuname";
+     }
+     my $currdir = "$dir_root/$destination";
+     (my $docstype,$mapinner{'0'}) = ($destination =~ m{^(docs|supplemental)/(\w+)/});
+     if ($env{'form.folderpath'}) {
+         my @items = split('&',$env{'form.folderpath'});
+         $folders{'0'} = $items[-2];
+         if ($env{'form.folderpath'} =~ /\:1$/) {
+             $containers{'0'}='page';
+         } else {
+             $containers{'0'}='sequence';
+         }
+     }
+     my @archdirs = &get_env_multiple('form.archive_directory');
+     if ($numitems) {
+         for (my $i=1; $i<=$numitems; $i++) {
+             my $path = $env{'form.archive_content_'.$i};
+             if ($path =~ m{^\Q$pathtocheck\E/([^/]+)$}) {
+                 my $item = $1;
+                 $toplevelitems{$item} = $i;
+                 if (grep(/^\Q$i\E$/,@archdirs)) {
+                     $is_dir{$item} = 1;
+                 }
+             }
+         }
+     }
+     my ($output,%children,%parent,%titles,%dirorder,$result);
+     if (keys(%toplevelitems) > 0) {
+         my @contents = sort(keys(%toplevelitems));
+         (my $count,undef) = &get_extracted($docudom,$docuname,$currdir,\%is_dir,\%children,
+                                            \%parent,\@contents,\%dirorder,\%titles);
+     }
+     my (%referrer,%orphaned,%todelete,%todeletedir,%newdest,%newseqid);
+     if ($numitems) {
+         for (my $i=1; $i<=$numitems; $i++) {
+             next if ($env{'form.archive_'.$i} eq 'dependency');
+             my $path = $env{'form.archive_content_'.$i};
+             if ($path =~ /^\Q$pathtocheck\E/) {
+                 if ($env{'form.archive_'.$i} eq 'discard') {
+                     if ($prefix ne '' && $path ne '') {
+                         if (-e $prefix.$path) {
+                             if ((@archdirs > 0) &&
+                                 (grep(/^\Q$i\E$/,@archdirs))) {
+                                 $todeletedir{$prefix.$path} = 1;
+                             } else {
+                                 $todelete{$prefix.$path} = 1;
+                             }
+                         }
+                     }
+                 } elsif ($env{'form.archive_'.$i} eq 'display') {
+                     my ($docstitle,$title,$url,$outer);
+                     ($title) = ($path =~ m{/([^/]+)$});
+                     $docstitle = $env{'form.archive_title_'.$i};
+                     if ($docstitle eq '') {
+                         $docstitle = $title;
+                     }
+                     $outer = 0;
+                     if (ref($dirorder{$i}) eq 'ARRAY') {
+                         if (@{$dirorder{$i}} > 0) {
+                             foreach my $item (reverse(@{$dirorder{$i}})) {
+                                 if ($env{'form.archive_'.$item} eq 'display') {
+                                     $outer = $item;
+                                     last;
+                                 }
+                             }
+                         }
+                     }
+                     my ($errtext,$fatal) =
+                         &LONCAPA::map::mapread('/uploaded/'.$docudom.'/'.$docuname.
+                                                '/'.$folders{$outer}.'.'.
+                                                $containers{$outer});
+                     next if ($fatal);
+                     if ((@archdirs > 0) && (grep(/^\Q$i\E$/,@archdirs))) {
+                         if ($context eq 'coursedocs') {
+                             $mapinner{$i} = time;
+                             $folders{$i} = 'default_'.$mapinner{$i};
+                             $containers{$i} = 'sequence';
+                             my $url = '/uploaded/'.$docudom.'/'.$docuname.'/'.
+                                       $folders{$i}.'.'.$containers{$i};
+                             my $newidx = &LONCAPA::map::getresidx();
+                             $LONCAPA::map::resources[$newidx]=
+                                 $docstitle.':'.$url.':false:normal:res';
+                             push(@LONCAPA::map::order,$newidx);
+                             my ($outtext,$errtext) =
+                                 &LONCAPA::map::storemap('/uploaded/'.$docudom.'/'.
+                                                         $docuname.'/'.$folders{$outer}.
+                                                         '.'.$containers{$outer},1,1);
+                             $newseqid{$i} = $newidx;
+                             unless ($errtext) {
+                                 $result .=  '<li>'.&mt('Folder: [_1] added to course',$docstitle).'</li>'."\n";
+                             }
+                         }
+                     } else {
+                         if ($context eq 'coursedocs') {
+                             my $newidx=&LONCAPA::map::getresidx();
+                             my $url = '/uploaded/'.$docudom.'/'.$docuname.'/'.
+                                       $docstype.'/'.$mapinner{$outer}.'/'.$newidx.'/'.
+                                       $title;
+                             if (!-e "$prefix$dir/$docstype/$mapinner{$outer}") {
+                                 mkdir("$prefix$dir/$docstype/$mapinner{$outer}",0755);
+                             }
+                             if (!-e "$prefix$dir/$docstype/$mapinner{$outer}/$newidx") {
+                                 mkdir("$prefix$dir/$docstype/$mapinner{$outer}/$newidx");
+                             }
+                             if (-e "$prefix$dir/$docstype/$mapinner{$outer}/$newidx") {
+                                 system("mv $prefix$path $prefix$dir/$docstype/$mapinner{$outer}/$newidx/$title");
+                                 $newdest{$i} = "$prefix$dir/$docstype/$mapinner{$outer}/$newidx";
+                                 unless ($ishome) {
+                                     my $fetch = "$newdest{$i}/$title";
+                                     $fetch =~ s/^\Q$prefix$dir\E//;
+                                     $prompttofetch{$fetch} = 1;
+                                 }
+                             }
+                             $LONCAPA::map::resources[$newidx]=
+                                 $docstitle.':'.$url.':false:normal:res';
+                             push(@LONCAPA::map::order, $newidx);
+                             my ($outtext,$errtext)=
+                                 &LONCAPA::map::storemap('/uploaded/'.$docudom.'/'.
+                                                         $docuname.'/'.$folders{$outer}.
+                                                         '.'.$containers{$outer},1,1);
+                             unless ($errtext) {
+                                 if (-e "$prefix$dir/$docstype/$mapinner{$outer}/$newidx/$title") {
+                                     $result .= '<li>'.&mt('File: [_1] added to course',$docstitle).'</li>'."\n";
+                                 }
+                             }
+                         }
+                     }
+                 }
+             } else {
+                 $warning .= &mt('Item extracted from archive: [_1] has unexpected path.',$path).'<br />';
+             }
+         }
+         for (my $i=1; $i<=$numitems; $i++) {
+             next unless ($env{'form.archive_'.$i} eq 'dependency');
+             my $path = $env{'form.archive_content_'.$i};
+             if ($path =~ /^\Q$pathtocheck\E/) {
+                 my ($title) = ($path =~ m{/([^/]+)$});
+                 $referrer{$i} = $env{'form.archive_dependent_on_'.$i};
+                 if ($env{'form.archive_'.$referrer{$i}} eq 'display') {
+                     if (ref($dirorder{$i}) eq 'ARRAY') {
+                         my ($itemidx,$fullpath,$relpath);
+                         if (ref($dirorder{$referrer{$i}}) eq 'ARRAY') {
+                             my $container = $dirorder{$referrer{$i}}->[-1];
+                             for (my $j=0; $j<@{$dirorder{$i}}; $j++) {
+                                 if ($dirorder{$i}->[$j] eq $container) {
+                                     $itemidx = $j;
+                                 }
+                             }
+                         }
+                         if ($itemidx eq '') {
+                             $itemidx =  0;
+                         }
+                         if (grep(/^\Q$referrer{$i}\E$/,@archdirs)) {
+                             if ($mapinner{$referrer{$i}}) {
+                                 $fullpath = "$prefix$dir/$docstype/$mapinner{$referrer{$i}}";
+                                 for (my $j=$itemidx; $j<@{$dirorder{$i}}; $j++) {
+                                     if (grep(/^\Q$dirorder{$i}->[$j]\E$/,@archdirs)) {
+                                         unless (defined($newseqid{$dirorder{$i}->[$j]})) {
+                                             $fullpath .= '/'.$titles{$dirorder{$i}->[$j]};
+                                             $relpath .= '/'.$titles{$dirorder{$i}->[$j]};
+                                             if (!-e $fullpath) {
+                                                 mkdir($fullpath,0755);
+                                             }
+                                         }
+                                     } else {
+                                         last;
+                                     }
+                                 }
+                             }
+                         } elsif ($newdest{$referrer{$i}}) {
+                             $fullpath = $newdest{$referrer{$i}};
+                             for (my $j=$itemidx; $j<@{$dirorder{$i}}; $j++) {
+                                 if ($env{'form.archive_'.$dirorder{$i}->[$j]} eq 'discard') {
+                                     $orphaned{$i} = $env{'form.archive_'.$dirorder{$i}->[$j]};
+                                     last;
+                                 } elsif (grep(/^\Q$dirorder{$i}->[$j]\E$/,@archdirs)) {
+                                     unless (defined($newseqid{$dirorder{$i}->[$j]})) {
+                                         $fullpath .= '/'.$titles{$dirorder{$i}->[$j]};
+                                         $relpath .= '/'.$titles{$dirorder{$i}->[$j]};
+                                         if (!-e $fullpath) {
+                                             mkdir($fullpath,0755);
+                                         }
+                                     }
+                                 } else {
+                                     last;
+                                 }
+                             }
+                         }
+                         if ($fullpath ne '') {
+                             if (-e "$prefix$path") {
+                                 system("mv $prefix$path $fullpath/$title");
+                             }
+                             if (-e "$fullpath/$title") {
+                                 my $showpath;
+                                 if ($relpath ne '') {
+                                     $showpath = "$relpath/$title";
+                                 } else {
+                                     $showpath = "/$title";
+                                 }
+                                 $result .= '<li>'.&mt('[_1] included as a dependency',$showpath).'</li>'."\n";
+                             }
+                             unless ($ishome) {
+                                 my $fetch = "$fullpath/$title";
+                                 $fetch =~ s/^\Q$prefix$dir\E//;
+                                 $prompttofetch{$fetch} = 1;
+                             }
+                         }
+                     }
+                 } elsif ($env{'form.archive_'.$referrer{$i}} eq 'discard') {
+                     $warning .= &mt('[_1] is a dependency of [_2], which was discarded.',
+                                     $path,$env{'form.archive_content_'.$referrer{$i}}).'<br />';
+                 }
+             } else {
+                 $warning .= &mt('Item extracted from archive: [_1] has unexpected path.',$path).'<br />';
+             }
+         }
+         if (keys(%todelete)) {
+             foreach my $key (keys(%todelete)) {
+                 unlink($key);
+             }
+         }
+         if (keys(%todeletedir)) {
+             foreach my $key (keys(%todeletedir)) {
+                 rmdir($key);
+             }
+         }
+         foreach my $dir (sort(keys(%is_dir))) {
+             if (($pathtocheck ne '') && ($dir ne ''))  {
+                 &cleanup_empty_dirs($prefix."$pathtocheck/$dir");
+             }
+         }
+         if ($result ne '') {
+             $output .= '<ul>'."\n".
+                        $result."\n".
+                        '</ul>';
+         }
+         unless ($ishome) {
+             my $replicationfail;
+             foreach my $item (keys(%prompttofetch)) {
+                 my $fetchresult= &Apache::lonnet::reply('fetchuserfile:'.$item,$docuhome);
+                 unless ($fetchresult eq 'ok') {
+                     $replicationfail .= '<li>'.$item.'</li>'."\n";
+                 }
+             }
+             if ($replicationfail) {
+                 $output .= '<p class="LC_error">'.
+                            &mt('Course home server failed to retrieve:').'<ul>'.
+                            $replicationfail.
+                            '</ul></p>';
+             }
+         }
+     } else {
+         $warning = &mt('No items found in archive.');
+     }
+     if ($error) {
+         $output .= '<p class="LC_error">'.&mt('Not extracted.').'<br />'.
+                    $error.'</p>'."\n";
+     }
+     if ($warning) {
+         $output .= '<p class="LC_warning">'.$warning.'</p>'."\n";
+     }
+     return $output;
+ }
+ sub cleanup_empty_dirs {
+     my ($path) = @_;
+     if (($path ne '') && (-d $path)) {
+         if (opendir(my $dirh,$path)) {
+             my @dircontents = grep(!/^\./,readdir($dirh));
+             my $numitems = 0;
+             foreach my $item (@dircontents) {
+                 if (-d "$path/$item") {
+                     &cleanup_empty_dirs("$path/$item");
+                     if (-e "$path/$item") {
+                         $numitems ++;
+                     }
+                 } else {
+                     $numitems ++;
+                 }
+             }
+             if ($numitems == 0) {
+                 rmdir($path);
+             }
+             closedir($dirh);
+         }
+     }
+     return;
+ }
  =pod
- =back
+ =item &get_folder_hierarchy()
+ Provides hierarchy of names of folders/sub-folders containing the current
+ item,
+ Inputs: 3
+      - $navmap - navmaps object
+      - $map - url for map (either the trigger itself, or map containing
+                            the resource, which is the trigger).
+      - $showitem - 1 => show title for map itself; 0 => do not show.
+ Outputs: 1 @pathitems - array of folder/subfolder names.
+ =cut
+ sub get_folder_hierarchy {
+     my ($navmap,$map,$showitem) = @_;
+     my @pathitems;
+     if (ref($navmap)) {
+         my $mapres = $navmap->getResourceByUrl($map);
+         if (ref($mapres)) {
+             my $pcslist = $mapres->map_hierarchy();
+             if ($pcslist ne '') {
+                 my @pcs = split(/,/,$pcslist);
+                 foreach my $pc (@pcs) {
+                     if ($pc == 1) {
+                         push(@pathitems,&mt('Main Content'));
+                     } else {
+                         my $res = $navmap->getByMapPc($pc);
+                         if (ref($res)) {
+                             my $title = $res->compTitle();
+                             $title =~ s/\W+/_/g;
+                             if ($title ne '') {
+                                 push(@pathitems,$title);
+                             }
+                         }
+                     }
+                 }
+             }
+             if ($showitem) {
+                 if ($mapres->{ID} eq '0.0') {
+                     push(@pathitems,&mt('Main Content'));
+                 } else {
+                     my $maptitle = $mapres->compTitle();
+                     $maptitle =~ s/\W+/_/g;
+                     if ($maptitle ne '') {
+                         push(@pathitems,$maptitle);
+                     }
+                 }
+             }
+         }
+     }
+     return @pathitems;
+ }
+ =pod
+ =item * &get_turnedin_filepath()
+ Determines path in a user's portfolio file for storage of files uploaded
+ to a specific essayresponse or dropbox item.
+ Inputs: 3 required + 1 optional.
+ $symb is symb for resource, $uname and $udom are for current user (required).
+ $caller is optional (can be "submission", if routine is called when storing
+ an upoaded file when "Submit Answer" button was pressed).
+ Returns array containing $path and $multiresp.
+ $path is path in portfolio.  $multiresp is 1 if this resource contains more
+ than one file upload item.  Callers of routine should append partid as a
+ subdirectory to $path in cases where $multiresp is 1.
+ Called by: homework/essayresponse.pm and homework/structuretags.pm
+ =cut
+ sub get_turnedin_filepath {
+     my ($symb,$uname,$udom,$caller) = @_;
+     my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
+     my $turnindir;
+     my %userhash = &Apache::lonnet::userenvironment($udom,$uname,'turnindir');
+     $turnindir = $userhash{'turnindir'};
+     my ($path,$multiresp);
+     if ($turnindir eq '') {
+         if ($caller eq 'submission') {
+             $turnindir = &mt('turned in');
+             $turnindir =~ s/\W+/_/g;
+             my %newhash = (
+                             'turnindir' => $turnindir,
+                           );
+             &Apache::lonnet::put('environment',\%newhash,$udom,$uname);
+         }
+     }
+     if ($turnindir ne '') {
+         $path = '/'.$turnindir.'/';
+         my ($multipart,$turnin,@pathitems);
+         my $navmap = Apache::lonnavmaps::navmap->new();
+         if (defined($navmap)) {
+             my $mapres = $navmap->getResourceByUrl($map);
+             if (ref($mapres)) {
+                 my $pcslist = $mapres->map_hierarchy();
+                 if ($pcslist ne '') {
+                     foreach my $pc (split(/,/,$pcslist)) {
+                         my $res = $navmap->getByMapPc($pc);
+                         if (ref($res)) {
+                             my $title = $res->compTitle();
+                             $title =~ s/\W+/_/g;
+                             if ($title ne '') {
+                                 push(@pathitems,$title);
+                             }
+                         }
+                     }
+                 }
+                 my $maptitle = $mapres->compTitle();
+                 $maptitle =~ s/\W+/_/g;
+                 if ($maptitle ne '') {
+                     push(@pathitems,$maptitle);
+                 }
+                 unless ($env{'request.state'} eq 'construct') {
+                     my $res = $navmap->getBySymb($symb);
+                     if (ref($res)) {
+                         my $partlist = $res->parts();
+                         my $totaluploads = 0;
+                         if (ref($partlist) eq 'ARRAY') {
+                             foreach my $part (@{$partlist}) {
+                                 my @types = $res->responseType($part);
+                                 my @ids = $res->responseIds($part);
+                                 for (my $i=0; $i < scalar(@ids); $i++) {
+                                     if ($types[$i] eq 'essay') {
+                                         my $partid = $part.'_'.$ids[$i];
+                                         if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
+                                             $totaluploads ++;
+                                         }
+                                     }
+                                 }
+                             }
+                             if ($totaluploads > 1) {
+                                 $multiresp = 1;
+                             }
+                         }
+                     }
+                 }
+             } else {
+                 return;
+             }
+         } else {
+             return;
+         }
+         my $restitle=&Apache::lonnet::gettitle($symb);
+         $restitle =~ s/\W+/_/g;
+         if ($restitle eq '') {
+             $restitle = ($resurl =~ m{/[^/]+$});
+             if ($restitle eq '') {
+                 $restitle = time;
+             }
+         }
+         push(@pathitems,$restitle);
+         $path .= join('/',@pathitems);
+     }
+     return ($path,$multiresp);
+ }
+ =pod
+ =back
  =head1 CSV Upload/Handling functions
  =over 4
- =item * upfile_store($r)
+ =item * &upfile_store($r)
  Store uploaded file, $r should be the HTTP Request object,
- needs $ENV{'form.upfile'}
+ needs $env{'form.upfile'}
  returns $datatoken to be put into hidden field
  =cut
  sub upfile_store {
      my $r=shift;
-     $ENV{'form.upfile'}=~s/\r/\n/gs;
+     $env{'form.upfile'}=~s/\r/\n/gs;
-     $ENV{'form.upfile'}=~s/\f/\n/gs;
+     $env{'form.upfile'}=~s/\f/\n/gs;
-     $ENV{'form.upfile'}=~s/\n+/\n/gs;
+     $env{'form.upfile'}=~s/\n+/\n/gs;
-     $ENV{'form.upfile'}=~s/\n+$//gs;
+     $env{'form.upfile'}=~s/\n+$//gs;
-     my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}.
+     my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
- 	'_enroll_'.$ENV{'request.course.id'}.'_'.time.'_'.$$;
+ 	'_enroll_'.$env{'request.course.id'}.'_'.time.'_'.$$;
      {
- 	my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons').
+         my $datafile = $r->dir_config('lonDaemons').
- 				 '/tmp/'.$datatoken.'.tmp');
+                            '/tmp/'.$datatoken.'.tmp';
- 	print $fh $ENV{'form.upfile'};
+         if ( open(my $fh,">$datafile") ) {
+             print $fh $env{'form.upfile'};
+             close($fh);
+         }
      }
      return $datatoken;
  }
  =pod
- =item * load_tmp_file($r)
+ =item * &load_tmp_file($r)
  Load uploaded file from tmp, $r should be the HTTP Request object,
- needs $ENV{'form.datatoken'},
+ needs $env{'form.datatoken'},
- sets $ENV{'form.upfile'} to the contents of the file
+ sets $env{'form.upfile'} to the contents of the file
  =cut
- Line 2437  sub load_tmp_file {
+ Line 12092  sub load_tmp_file {
      my $r=shift;
      my @studentdata=();
      {
- 	my $fh;
+         my $studentfile = $r->dir_config('lonDaemons').
- 	if ($fh=Apache::File->new($r->dir_config('lonDaemons').
+                               '/tmp/'.$env{'form.datatoken'}.'.tmp';
- 				  '/tmp/'.$ENV{'form.datatoken'}.'.tmp')) {
+         if ( open(my $fh,"<$studentfile") ) {
- 	    @studentdata=<$fh>;
+             @studentdata=<$fh>;
- 	}
+             close($fh);
+         }
      }
-     $ENV{'form.upfile'}=join('',@studentdata);
+     $env{'form.upfile'}=join('',@studentdata);
  }
  =pod
- =item * upfile_record_sep()
+ =item * &upfile_record_sep()
  Separate uploaded file into records
  returns array of records,
- needs $ENV{'form.upfile'} and $ENV{'form.upfiletype'}
+ needs $env{'form.upfile'} and $env{'form.upfiletype'}
  =cut
  sub upfile_record_sep {
-     if ($ENV{'form.upfiletype'} eq 'xml') {
+     if ($env{'form.upfiletype'} eq 'xml') {
      } else {
- 	return split(/\n/,$ENV{'form.upfile'});
+ 	my @records;
+ 	foreach my $line (split(/\n/,$env{'form.upfile'})) {
+ 	    if ($line=~/^\s*$/) { next; }
+ 	    push(@records,$line);
+ 	}
+ 	return @records;
      }
  }
  =pod
- =item * record_sep($record)
+ =item * &record_sep($record)
- Separate a record into fields $record should be an item from the upfile_record_sep(), needs $ENV{'form.upfiletype'}
+ Separate a record into fields $record should be an item from the upfile_record_sep(), needs $env{'form.upfiletype'}
  =cut
+ sub takeleft {
+     my $index=shift;
+     return substr('0000'.$index,-4,4);
+ }
  sub record_sep {
      my $record=shift;
      my %components=();
-     if ($ENV{'form.upfiletype'} eq 'xml') {
+     if ($env{'form.upfiletype'} eq 'xml') {
-     } elsif ($ENV{'form.upfiletype'} eq 'space') {
+     } elsif ($env{'form.upfiletype'} eq 'space') {
          my $i=0;
-         foreach (split(/\s+/,$record)) {
+         foreach my $field (split(/\s+/,$record)) {
-             my $field=$_;
              $field=~s/^(\"|\')//;
              $field=~s/(\"|\')$//;
-             $components{$i}=$field;
+             $components{&takeleft($i)}=$field;
              $i++;
          }
-     } elsif ($ENV{'form.upfiletype'} eq 'tab') {
+     } elsif ($env{'form.upfiletype'} eq 'tab') {
          my $i=0;
-         foreach (split(/\t+/,$record)) {
+         foreach my $field (split(/\t/,$record)) {
-             my $field=$_;
              $field=~s/^(\"|\')//;
              $field=~s/(\"|\')$//;
-             $components{$i}=$field;
+             $components{&takeleft($i)}=$field;
              $i++;
          }
      } else {
-         my @allfields=split(/\,/,$record);
+         my $separator=',';
+         if ($env{'form.upfiletype'} eq 'semisv') {
+             $separator=';';
+         }
          my $i=0;
-         my $j;
+ # the character we are looking for to indicate the end of a quote or a record
-         for ($j=0;$j<=$#allfields;$j++) {
+         my $looking_for=$separator;
-             my $field=$allfields[$j];
+ # do not add the characters to the fields
-             if ($field=~/^\s*(\"|\')/) {
+         my $ignore=0;
- 		my $delimiter=$1;
+ # we just encountered a separator (or the beginning of the record)
-                 while (($field!~/$delimiter$/) && ($j<$#allfields)) {
+         my $just_found_separator=1;
- 		    $j++;
+ # store the field we are working on here
- 		    $field.=','.$allfields[$j];
+         my $field='';
- 		}
+ # work our way through all characters in record
-                 $field=~s/^\s*$delimiter//;
+         foreach my $character ($record=~/(.)/g) {
-                 $field=~s/$delimiter\s*$//;
+             if ($character eq $looking_for) {
+                if ($character ne $separator) {
+ # Found the end of a quote, again looking for separator
+                   $looking_for=$separator;
+                   $ignore=1;
+                } else {
+ # Found a separator, store away what we got
+                   $components{&takeleft($i)}=$field;
+ 	          $i++;
+                   $just_found_separator=1;
+                   $ignore=0;
+                   $field='';
+                }
+                next;
              }
-             $components{$i}=$field;
+ # single or double quotation marks after a separator indicate beginning of a quote
- 	    $i++;
+ # we are now looking for the end of the quote and need to ignore separators
+             if ((($character eq '"') || ($character eq "'")) && ($just_found_separator))  {
+                $looking_for=$character;
+                next;
+             }
+ # ignore would be true after we reached the end of a quote
+             if ($ignore) { next; }
+             if (($just_found_separator) && ($character=~/\s/)) { next; }
+             $field.=$character;
+             $just_found_separator=0;
          }
+ # catch the very last entry, since we never encountered the separator
+         $components{&takeleft($i)}=$field;
      }
      return %components;
  }
- Line 2520  sub record_sep {
+ Line 12211  sub record_sep {
  =pod
- =item * upfile_select_html()
+ =item * &upfile_select_html()
  Return HTML code to select a file from the users machine and specify
  the file type.
- Line 2532  the file type.
+ Line 12223  the file type.
  sub upfile_select_html {
      my %Types = (
                   csv   => &mt('CSV (comma separated values, spreadsheet)'),
+                  semisv => &mt('Semicolon separated values'),
                   space => &mt('Space separated'),
                   tab   => &mt('Tabulator separated'),
  #                 xml   => &mt('HTML/XML'),
                   );
      my $Str = '<input type="file" name="upfile" size="50" />'.
-         '<br />Type: <select name="upfiletype">';
+         '<br />'.&mt('Type').': <select name="upfiletype">';
      foreach my $type (sort(keys(%Types))) {
          $Str .= '<option value="'.$type.'" >'.$Types{$type}."</option>\n";
      }
- Line 2545  sub upfile_select_html {
+ Line 12237  sub upfile_select_html {
      return $Str;
  }
+ sub get_samples {
+     my ($records,$toget) = @_;
+     my @samples=({});
+     my $got=0;
+     foreach my $rec (@$records) {
+ 	my %temp = &record_sep($rec);
+ 	if (! grep(/\S/, values(%temp))) { next; }
+ 	if (%temp) {
+ 	    $samples[$got]=\%temp;
+ 	    $got++;
+ 	    if ($got == $toget) { last; }
+ 	}
+     }
+     return \@samples;
+ }
  ######################################################
  ######################################################
  =pod
- =item * csv_print_samples($r,$records)
+ =item * &csv_print_samples($r,$records)
  Prints a table of sample values from each column uploaded $r is an
  Apache Request ref, $records is an arrayref from
- Line 2562  Apache Request ref, $records is an array
+ Line 12270  Apache Request ref, $records is an array
  ######################################################
  sub csv_print_samples {
      my ($r,$records) = @_;
-     my (%sone,%stwo,%sthree);
+     my $samples = &get_samples($records,5);
-     %sone=&record_sep($$records[0]);
-     if (defined($$records[1])) {%stwo=&record_sep($$records[1]);}
+     $r->print(&mt('Samples').'<br />'.&start_data_table().
-     if (defined($$records[2])) {%sthree=&record_sep($$records[2]);}
+               &start_data_table_header_row());
-     #
+     foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
-     $r->print(&mt('Samples').'<br /><table border="2"><tr>');
+         $r->print('<th>'.&mt('Column [_1]',($sample+1)).'</th>'); }
-     foreach (sort({$a <=> $b} keys(%sone))) {
+     $r->print(&end_data_table_header_row());
-         $r->print('<th>'.&mt('Column&nbsp;[_1]',($_+1)).'</th>'); }
+     foreach my $hash (@$samples) {
-     $r->print('</tr>');
+ 	$r->print(&start_data_table_row());
-     foreach my $hash (\%sone,\%stwo,\%sthree) {
+ 	foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
- 	$r->print('<tr>');
- 	foreach (sort({$a <=> $b} keys(%sone))) {
  	    $r->print('<td>');
- 	    if (defined($$hash{$_})) { $r->print($$hash{$_}); }
+ 	    if (defined($$hash{$sample})) { $r->print($$hash{$sample}); }
  	    $r->print('</td>');
  	}
- 	$r->print('</tr>');
+ 	$r->print(&end_data_table_row());
      }
-     $r->print('</tr></table><br />'."\n");
+     $r->print(&end_data_table().'<br />'."\n");
  }
  ######################################################
- Line 2588  sub csv_print_samples {
+ Line 12294  sub csv_print_samples {
  =pod
- =item * csv_print_select_table($r,$records,$d)
+ =item * &csv_print_select_table($r,$records,$d)
  Prints a table to create associations between values and table columns.
  $r is an Apache Request ref,
  $records is an arrayref from &Apache::loncommon::upfile_record_sep,
- $d is an array of 2 element arrays (internal name, displayed name)
+ $d is an array of 2 element arrays (internal name, displayed name,defaultcol)
  =cut
- Line 2602  $d is an array of 2 element arrays (inte
+ Line 12308  $d is an array of 2 element arrays (inte
  ######################################################
  sub csv_print_select_table {
      my ($r,$records,$d) = @_;
-     my $i=0;my %sone;
+     my $i=0;
-     %sone=&record_sep($$records[0]);
+     my $samples = &get_samples($records,1);
      $r->print(&mt('Associate columns with student attributes.')."\n".
- 	     '<table border="2"><tr>'.
+ 	      &start_data_table().&start_data_table_header_row().
                '<th>'.&mt('Attribute').'</th>'.
-               '<th>'.&mt('Column').'</th></tr>'."\n");
+               '<th>'.&mt('Column').'</th>'.
-     foreach (@$d) {
+               &end_data_table_header_row()."\n");
- 	my ($value,$display)=@{ $_ };
+     foreach my $array_ref (@$d) {
- 	$r->print('<tr><td>'.$display.'</td>');
+ 	my ($value,$display,$defaultcol)=@{ $array_ref };
+ 	$r->print(&start_data_table_row().'<td>'.$display.'</td>');
- 	$r->print('<td><select name=f'.$i.
+ 	$r->print('<td><select name="f'.$i.'"'.
  		  ' onchange="javascript:flip(this.form,'.$i.');">');
  	$r->print('<option value="none"></option>');
- 	foreach (sort({$a <=> $b} keys(%sone))) {
+ 	foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
- 	    $r->print('<option value="'.$_.'">Column '.($_+1).'</option>');
+ 	    $r->print('<option value="'.$sample.'"'.
+                       ($sample eq $defaultcol ? ' selected="selected" ' : '').
+                       '>'.&mt('Column [_1]',($sample+1)).'</option>');
  	}
- 	$r->print('</select></td></tr>'."\n");
+ 	$r->print('</select></td>'.&end_data_table_row()."\n");
  	$i++;
      }
+     $r->print(&end_data_table());
      $i--;
      return $i;
  }
- Line 2630  sub csv_print_select_table {
+ Line 12340  sub csv_print_select_table {
  =pod
- =item * csv_samples_select_table($r,$records,$d)
+ =item * &csv_samples_select_table($r,$records,$d)
  Prints a table of sample values from the upload and can make associate samples to internal names.
- Line 2644  $d is an array of 2 element arrays (inte
+ Line 12354  $d is an array of 2 element arrays (inte
  ######################################################
  sub csv_samples_select_table {
      my ($r,$records,$d) = @_;
-     my %sone; my %stwo; my %sthree;
      my $i=0;
      #
-     $r->print('<table border=2><tr><th>'.
+     my $max_samples = 5;
-               &mt('Field').'</th><th>'.&mt('Samples').'</th></tr>');
+     my $samples = &get_samples($records,$max_samples);
-     %sone=&record_sep($$records[0]);
+     $r->print(&start_data_table().
-     if (defined($$records[1])) {%stwo=&record_sep($$records[1]);}
+               &start_data_table_header_row().'<th>'.
-     if (defined($$records[2])) {%sthree=&record_sep($$records[2]);}
+               &mt('Field').'</th><th>'.&mt('Samples').'</th>'.
-     #
+               &end_data_table_header_row());
-     foreach (sort keys %sone) {
- 	$r->print('<tr><td><select name="f'.$i.'"'.
+     foreach my $key (sort(keys(%{ $samples->[0] }))) {
+ 	$r->print(&start_data_table_row().'<td><select name="f'.$i.'"'.
  		  ' onchange="javascript:flip(this.form,'.$i.');">');
- 	foreach (@$d) {
+ 	foreach my $option (@$d) {
- 	    my ($value,$display)=@{ $_ };
+ 	    my ($value,$display,$defaultcol)=@{ $option };
- 	    $r->print('<option value="'.$value.'">'.$display.'</option>');
+ 	    $r->print('<option value="'.$value.'"'.
+                       ($i eq $defaultcol ? ' selected="selected" ':'').'>'.
+                       $display.'</option>');
  	}
  	$r->print('</select></td><td>');
- 	if (defined($sone{$_})) { $r->print($sone{$_}."</br>\n"); }
+ 	foreach my $line (0..($max_samples-1)) {
- 	if (defined($stwo{$_})) { $r->print($stwo{$_}."</br>\n"); }
+ 	    if (defined($samples->[$line]{$key})) {
- 	if (defined($sthree{$_})) { $r->print($sthree{$_}."</br>\n"); }
+ 		$r->print($samples->[$line]{$key}."<br />\n");
- 	$r->print('</td></tr>');
+ 	    }
+ 	}
+ 	$r->print('</td>'.&end_data_table_row());
  	$i++;
      }
+     $r->print(&end_data_table());
      $i--;
      return($i);
  }
- Line 2676  sub csv_samples_select_table {
+ Line 12391  sub csv_samples_select_table {
  =pod
- =item clean_excel_name($name)
+ =item * &clean_excel_name($name)
  Returns a replacement for $name which does not contain any illegal characters.
- Line 2695  sub clean_excel_name {
+ Line 12410  sub clean_excel_name {
  =pod
- =item * check_if_partid_hidden($id,$symb,$udom,$uname)
+ =item * &check_if_partid_hidden($id,$symb,$udom,$uname)
  Returns either 1 or undef
- Line 2730  sub check_if_partid_hidden {
+ Line 12445  sub check_if_partid_hidden {
  =pod
+ =back
  =head1 cgi-bin script and graphing routines
- =item get_cgi_id
+ =over 4
+ =item * &get_cgi_id()
  Inputs: none
- Line 2747  the routine &Apache::lonnet::transfer_pr
+ Line 12466  the routine &Apache::lonnet::transfer_pr
  ############################################################
  my $uniq=0;
  sub get_cgi_id {
-     $uniq=($uniq++)%100000;
+     $uniq=($uniq+1)%100000;
-     return (time.'_'.$uniq);
+     return (time.'_'.$$.'_'.$uniq);
  }
  ############################################################
- Line 2756  sub get_cgi_id {
+ Line 12475  sub get_cgi_id {
  =pod
- =item DrawBarGraph
+ =item * &DrawBarGraph()
  Facilitates the plotting of data in a (stacked) bar graph.
  Puts plot definition data into the users environment in order for
- Line 2779  If $Max is < any data point, the graph w
+ Line 12498  If $Max is < any data point, the graph w
  =item $colors: array ref holding the colors to be used for the data sets when
  they are plotted.  If undefined, default values will be used.
+ =item $labels: array ref holding the labels to use on the x-axis for the bars.
  =item @Values: An array of array references.  Each array reference holds data
  to be plotted in a stacked bar chart.
+ =item If the final element of @Values is a hash reference the key/value
+ pairs will be added to the graph definition.
  =back
  Returns:
- Line 2794  information for the plot.
+ Line 12518  information for the plot.
  ############################################################
  ############################################################
  sub DrawBarGraph {
-     my ($Title,$xlabel,$ylabel,$Max,$colors,@Values)=@_;
+     my ($Title,$xlabel,$ylabel,$Max,$colors,$labels,@Values)=@_;
      #
      if (! defined($colors)) {
          $colors = ['#33ff00',
- Line 2802  sub DrawBarGraph {
+ Line 12526  sub DrawBarGraph {
                    '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
                    ];
      }
+     my $extra_settings = {};
+     if (ref($Values[-1]) eq 'HASH') {
+         $extra_settings = pop(@Values);
+     }
      #
      my $identifier = &get_cgi_id();
      my $id = 'cgi.'.$identifier;
      if (! @Values || ref($Values[0]) ne 'ARRAY') {
          return '';
      }
+     #
+     my @Labels;
+     if (defined($labels)) {
+         @Labels = @$labels;
+     } else {
+         for (my $i=0;$i<@{$Values[0]};$i++) {
+             push (@Labels,$i+1);
+         }
+     }
+     #
      my $NumBars = scalar(@{$Values[0]});
+     if ($NumBars < scalar(@Labels)) { $NumBars = scalar(@Labels); }
      my %ValuesHash;
      my $NumSets=1;
      foreach my $array (@Values) {
- Line 2818  sub DrawBarGraph {
+ Line 12557  sub DrawBarGraph {
      }
      #
      my ($height,$width,$xskip,$bar_width) = (200,120,1,15);
-     if ($NumBars < 10) {
+     if ($NumBars < 3) {
+         $width = 120+$NumBars*32;
+         $xskip = 1;
+         $bar_width = 30;
+     } elsif ($NumBars < 5) {
+         $width = 120+$NumBars*20;
+         $xskip = 1;
+         $bar_width = 20;
+     } elsif ($NumBars < 10) {
          $width = 120+$NumBars*15;
          $xskip = 1;
          $bar_width = 15;
- Line 2836  sub DrawBarGraph {
+ Line 12583  sub DrawBarGraph {
          $bar_width = 4;
      }
      #
-     my @Labels;
-     for (my $i=0;$i<@{$Values[0]};$i++) {
-         push (@Labels,$i+1);
-     }
-     #
      $Max = 1 if ($Max < 1);
      if ( int($Max) < $Max ) {
          $Max++;
- Line 2849  sub DrawBarGraph {
+ Line 12591  sub DrawBarGraph {
      $Title  = '' if (! defined($Title));
      $xlabel = '' if (! defined($xlabel));
      $ylabel = '' if (! defined($ylabel));
-     $ValuesHash{$id.'.title'}    = &Apache::lonnet::escape($Title);
+     $ValuesHash{$id.'.title'}    = &escape($Title);
-     $ValuesHash{$id.'.xlabel'}   = &Apache::lonnet::escape($xlabel);
+     $ValuesHash{$id.'.xlabel'}   = &escape($xlabel);
-     $ValuesHash{$id.'.ylabel'}   = &Apache::lonnet::escape($ylabel);
+     $ValuesHash{$id.'.ylabel'}   = &escape($ylabel);
      $ValuesHash{$id.'.y_max_value'} = $Max;
      $ValuesHash{$id.'.NumBars'}  = $NumBars;
      $ValuesHash{$id.'.NumSets'}  = $NumSets;
- Line 2863  sub DrawBarGraph {
+ Line 12605  sub DrawBarGraph {
      $ValuesHash{$id.'.bar_width'} = $bar_width;
      $ValuesHash{$id.'.labels'} = join(',',@Labels);
      #
-     &Apache::lonnet::appenv(%ValuesHash);
+     # Deal with other parameters
+     while (my ($key,$value) = each(%$extra_settings)) {
+         $ValuesHash{$id.'.'.$key} = $value;
+     }
+     #
+     &Apache::lonnet::appenv(\%ValuesHash);
      return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
  }
- Line 2872  sub DrawBarGraph {
+ Line 12619  sub DrawBarGraph {
  =pod
- =item DrawXYGraph
+ =item * &DrawXYGraph()
  Facilitates the plotting of data in an XY graph.
  Puts plot definition data into the users environment in order for
- Line 2897  plotted in.  If undefined, default value
+ Line 12644  plotted in.  If undefined, default value
  =item $Xlabels: Array ref containing the labels to be used for the X-axis.
  =item $Ydata: Array ref containing Array refs.
- Each of the contained arrays will be plotted as a seperate curve.
+ Each of the contained arrays will be plotted as a separate curve.
  =item %Values: hash indicating or overriding any default values which are
  passed to graph.png.
- Line 2926  sub DrawXYGraph {
+ Line 12673  sub DrawXYGraph {
      $ylabel = '' if (! defined($ylabel));
      my %ValuesHash =
          (
-          $id.'.title'  => &Apache::lonnet::escape($Title),
+          $id.'.title'  => &escape($Title),
-          $id.'.xlabel' => &Apache::lonnet::escape($xlabel),
+          $id.'.xlabel' => &escape($xlabel),
-          $id.'.ylabel' => &Apache::lonnet::escape($ylabel),
+          $id.'.ylabel' => &escape($ylabel),
           $id.'.y_max_value'=> $Max,
           $id.'.labels'     => join(',',@$Xlabels),
           $id.'.PlotType'   => 'XY',
- Line 2953  sub DrawXYGraph {
+ Line 12700  sub DrawXYGraph {
          $ValuesHash{$id.'.'.$key} = $value;
      }
      #
-     &Apache::lonnet::appenv(%ValuesHash);
+     &Apache::lonnet::appenv(\%ValuesHash);
      return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
  }
- Line 2962  sub DrawXYGraph {
+ Line 12709  sub DrawXYGraph {
  =pod
- =item DrawXYYGraph
+ =item * &DrawXYYGraph()
  Facilitates the plotting of data in an XY graph with two Y axes.
  Puts plot definition data into the users environment in order for
- Line 3023  sub DrawXYYGraph {
+ Line 12770  sub DrawXYYGraph {
      $ylabel = '' if (! defined($ylabel));
      my %ValuesHash =
          (
-          $id.'.title'  => &Apache::lonnet::escape($Title),
+          $id.'.title'  => &escape($Title),
-          $id.'.xlabel' => &Apache::lonnet::escape($xlabel),
+          $id.'.xlabel' => &escape($xlabel),
-          $id.'.ylabel' => &Apache::lonnet::escape($ylabel),
+          $id.'.ylabel' => &escape($ylabel),
           $id.'.labels' => join(',',@$Xlabels),
           $id.'.PlotType' => 'XY',
           $id.'.NumSets' => 2,
- Line 3055  sub DrawXYYGraph {
+ Line 12802  sub DrawXYYGraph {
          $ValuesHash{$id.'.'.$key} = $value;
      }
      #
-     &Apache::lonnet::appenv(%ValuesHash);
+     &Apache::lonnet::appenv(\%ValuesHash);
      return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
  }
- Line 3064  sub DrawXYYGraph {
+ Line 12811  sub DrawXYYGraph {
  =pod
+ =back
  =head1 Statistics helper routines?
  Bad place for them but what the hell.
- =item &chartlink
+ =over 4
+ =item * &chartlink()
  Returns a link to the chart for a specific student.
- Line 3084  Inputs:
+ Line 12835  Inputs:
  =back
+ =back
  =cut
  ############################################################
- Line 3091  Inputs:
+ Line 12844  Inputs:
  sub chartlink {
      my ($linktext, $sname, $sdomain) = @_;
      my $link = '<a href="/adm/statistics?reportSelected=student_assessment'.
-         '&SelectedStudent='.&Apache::lonnet::escape($sname.':'.$sdomain).
+         '&amp;SelectedStudent='.&escape($sname.':'.$sdomain).
-         '&chartoutputmode='.HTML::Entities::encode('html, with all links').
+         '&amp;chartoutputmode='.HTML::Entities::encode('html, with all links').
         '">'.$linktext.'</a>';
  }
+ #######################################################
+ #######################################################
+ =pod
+ =head1 Course Environment Routines
+ =over 4
+ =item * &restore_course_settings()
+ =item * &store_course_settings()
+ Restores/Store indicated form parameters from the course environment.
+ Will not overwrite existing values of the form parameters.
+ Inputs:
+ a scalar describing the data (e.g. 'chart', 'problem_analysis')
+ a hash ref describing the data to be stored.  For example:
+ %Save_Parameters = ('Status' => 'scalar',
+     'chartoutputmode' => 'scalar',
+     'chartoutputdata' => 'scalar',
+     'Section' => 'array',
+     'Group' => 'array',
+     'StudentData' => 'array',
+     'Maps' => 'array');
+ Returns: both routines return nothing
+ =back
+ =cut
+ #######################################################
+ #######################################################
+ sub store_course_settings {
+     return &store_settings($env{'request.course.id'},@_);
+ }
+ sub store_settings {
+     # save to the environment
+     # appenv the same items, just to be safe
+     my $udom  = $env{'user.domain'};
+     my $uname = $env{'user.name'};
+     my ($context,$prefix,$Settings) = @_;
+     my %SaveHash;
+     my %AppHash;
+     while (my ($setting,$type) = each(%$Settings)) {
+         my $basename = join('.','internal',$context,$prefix,$setting);
+         my $envname = 'environment.'.$basename;
+         if (exists($env{'form.'.$setting})) {
+             # Save this value away
+             if ($type eq 'scalar' &&
+                 (! exists($env{$envname}) ||
+                  $env{$envname} ne $env{'form.'.$setting})) {
+                 $SaveHash{$basename} = $env{'form.'.$setting};
+                 $AppHash{$envname}   = $env{'form.'.$setting};
+             } elsif ($type eq 'array') {
+                 my $stored_form;
+                 if (ref($env{'form.'.$setting})) {
+                     $stored_form = join(',',
+                                         map {
+                                             &escape($_);
+                                         } sort(@{$env{'form.'.$setting}}));
+                 } else {
+                     $stored_form =
+                         &escape($env{'form.'.$setting});
+                 }
+                 # Determine if the array contents are the same.
+                 if ($stored_form ne $env{$envname}) {
+                     $SaveHash{$basename} = $stored_form;
+                     $AppHash{$envname}   = $stored_form;
+                 }
+             }
+         }
+     }
+     my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
+                                           $udom,$uname);
+     if ($put_result !~ /^(ok|delayed)/) {
+         &Apache::lonnet::logthis('unable to save form parameters, '.
+                                  'got error:'.$put_result);
+     }
+     # Make sure these settings stick around in this session, too
+     &Apache::lonnet::appenv(\%AppHash);
+     return;
+ }
+ sub restore_course_settings {
+     return &restore_settings($env{'request.course.id'},@_);
+ }
+ sub restore_settings {
+     my ($context,$prefix,$Settings) = @_;
+     while (my ($setting,$type) = each(%$Settings)) {
+         next if (exists($env{'form.'.$setting}));
+         my $envname = 'environment.internal.'.$context.'.'.$prefix.
+             '.'.$setting;
+         if (exists($env{$envname})) {
+             if ($type eq 'scalar') {
+                 $env{'form.'.$setting} = $env{$envname};
+             } elsif ($type eq 'array') {
+                 $env{'form.'.$setting} = [
+                                            map {
+                                                &unescape($_);
+                                            } split(',',$env{$envname})
+                                            ];
+             }
+         }
+     }
+ }
+ #######################################################
+ #######################################################
+ =pod
+ =head1 Domain E-mail Routines
+ =over 4
+ =item * &build_recipient_list()
+ Build recipient lists for five types of e-mail:
+ (a) Error Reports, (b) Package Updates, (c) lonstatus warnings/errors
+ (d) Help requests, (e) Course requests needing approval,  generated by
+ lonerrorhandler.pm, CHECKRPMS, loncron, lonsupportreq.pm and
+ loncoursequeueadmin.pm respectively.
+ Inputs:
+ defmail (scalar - email address of default recipient),
+ mailing type (scalar - errormail, packagesmail, or helpdeskmail),
+ defdom (domain for which to retrieve configuration settings),
+ origmail (scalar - email address of recipient from loncapa.conf,
+ i.e., predates configuration by DC via domainprefs.pm
+ Returns: comma separated list of addresses to which to send e-mail.
+ =back
+ =cut
  ############################################################
  ############################################################
+ sub build_recipient_list {
+     my ($defmail,$mailing,$defdom,$origmail) = @_;
+     my @recipients;
+     my $otheremails;
+     my %domconfig =
+          &Apache::lonnet::get_dom('configuration',['contacts'],$defdom);
+     if (ref($domconfig{'contacts'}) eq 'HASH') {
+         if (exists($domconfig{'contacts'}{$mailing})) {
+             if (ref($domconfig{'contacts'}{$mailing}) eq 'HASH') {
+                 my @contacts = ('adminemail','supportemail');
+                 foreach my $item (@contacts) {
+                     if ($domconfig{'contacts'}{$mailing}{$item}) {
+                         my $addr = $domconfig{'contacts'}{$item};
+                         if (!grep(/^\Q$addr\E$/,@recipients)) {
+                             push(@recipients,$addr);
+                         }
+                     }
+                     $otheremails = $domconfig{'contacts'}{$mailing}{'others'};
+                 }
+             }
+         } elsif ($origmail ne '') {
+             push(@recipients,$origmail);
+         }
+     } elsif ($origmail ne '') {
+         push(@recipients,$origmail);
+     }
+     if (defined($defmail)) {
+         if ($defmail ne '') {
+             push(@recipients,$defmail);
+         }
+     }
+     if ($otheremails) {
+         my @others;
+         if ($otheremails =~ /,/) {
+             @others = split(/,/,$otheremails);
+         } else {
+             push(@others,$otheremails);
+         }
+         foreach my $addr (@others) {
+             if (!grep(/^\Q$addr\E$/,@recipients)) {
+                 push(@recipients,$addr);
+             }
+         }
+     }
+     my $recipientlist = join(',',@recipients);
+     return $recipientlist;
+ }
+ ############################################################
+ ############################################################
+ =pod
+ =head1 Course Catalog Routines
+ =over 4
+ =item * &gather_categories()
+ Converts category definitions - keys of categories hash stored in
+ coursecategories in configuration.db on the primary library server in a
+ domain - to an array.  Also generates javascript and idx hash used to
+ generate Domain Coordinator interface for editing Course Categories.
+ Inputs:
+ categories (reference to hash of category definitions).
+ cats (reference to array of arrays/hashes which encapsulates hierarchy of
+       categories and subcategories).
+ idx (reference to hash of counters used in Domain Coordinator interface for
+       editing Course Categories).
+ jsarray (reference to array of categories used to create Javascript arrays for
+          Domain Coordinator interface for editing Course Categories).
+ Returns: nothing
+ Side effects: populates cats, idx and jsarray.
+ =cut
+ sub gather_categories {
+     my ($categories,$cats,$idx,$jsarray) = @_;
+     my %counters;
+     my $num = 0;
+     foreach my $item (keys(%{$categories})) {
+         my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$item);
+         if ($container eq '' && $depth == 0) {
+             $cats->[$depth][$categories->{$item}] = $cat;
+         } else {
+             $cats->[$depth]{$container}[$categories->{$item}] = $cat;
+         }
+         my ($escitem,$tail) = split(/:/,$item,2);
+         if ($counters{$tail} eq '') {
+             $counters{$tail} = $num;
+             $num ++;
+         }
+         if (ref($idx) eq 'HASH') {
+             $idx->{$item} = $counters{$tail};
+         }
+         if (ref($jsarray) eq 'ARRAY') {
+             push(@{$jsarray->[$counters{$tail}]},$item);
+         }
+     }
+     return;
+ }
+ =pod
+ =item * &extract_categories()
+ Used to generate breadcrumb trails for course categories.
+ Inputs:
+ categories (reference to hash of category definitions).
+ cats (reference to array of arrays/hashes which encapsulates hierarchy of
+       categories and subcategories).
+ trails (reference to array of breacrumb trails for each category).
+ allitems (reference to hash - key is category key
+          (format: escaped(name):escaped(parent category):depth in hierarchy).
+ idx (reference to hash of counters used in Domain Coordinator interface for
+       editing Course Categories).
+ jsarray (reference to array of categories used to create Javascript arrays for
+          Domain Coordinator interface for editing Course Categories).
+ subcats (reference to hash of arrays containing all subcategories within each
+          category, -recursive)
+ Returns: nothing
+ Side effects: populates trails and allitems hash references.
+ =cut
+ sub extract_categories {
+     my ($categories,$cats,$trails,$allitems,$idx,$jsarray,$subcats) = @_;
+     if (ref($categories) eq 'HASH') {
+         &gather_categories($categories,$cats,$idx,$jsarray);
+         if (ref($cats->[0]) eq 'ARRAY') {
+             for (my $i=0; $i<@{$cats->[0]}; $i++) {
+                 my $name = $cats->[0][$i];
+                 my $item = &escape($name).'::0';
+                 my $trailstr;
+                 if ($name eq 'instcode') {
+                     $trailstr = &mt('Official courses (with institutional codes)');
+                 } elsif ($name eq 'communities') {
+                     $trailstr = &mt('Communities');
+                 } else {
+                     $trailstr = $name;
+                 }
+                 if ($allitems->{$item} eq '') {
+                     push(@{$trails},$trailstr);
+                     $allitems->{$item} = scalar(@{$trails})-1;
+                 }
+                 my @parents = ($name);
+                 if (ref($cats->[1]{$name}) eq 'ARRAY') {
+                     for (my $j=0; $j<@{$cats->[1]{$name}}; $j++) {
+                         my $category = $cats->[1]{$name}[$j];
+                         if (ref($subcats) eq 'HASH') {
+                             push(@{$subcats->{$item}},&escape($category).':'.&escape($name).':1');
+                         }
+                         &recurse_categories($cats,2,$category,$trails,$allitems,\@parents,$subcats);
+                     }
+                 } else {
+                     if (ref($subcats) eq 'HASH') {
+                         $subcats->{$item} = [];
+                     }
+                 }
+             }
+         }
+     }
+     return;
+ }
+ =pod
+ =item *&recurse_categories()
+ Recursively used to generate breadcrumb trails for course categories.
+ Inputs:
+ cats (reference to array of arrays/hashes which encapsulates hierarchy of
+       categories and subcategories).
+ depth (current depth in hierarchy of categories and sub-categories - 0 indexed).
+ category (current course category, for which breadcrumb trail is being generated).
+ trails (reference to array of breadcrumb trails for each category).
+ allitems (reference to hash - key is category key
+          (format: escaped(name):escaped(parent category):depth in hierarchy).
+ parents (array containing containers directories for current category,
+          back to top level).
+ Returns: nothing
+ Side effects: populates trails and allitems hash references
+ =cut
+ sub recurse_categories {
+     my ($cats,$depth,$category,$trails,$allitems,$parents,$subcats) = @_;
+     my $shallower = $depth - 1;
+     if (ref($cats->[$depth]{$category}) eq 'ARRAY') {
+         for (my $k=0; $k<@{$cats->[$depth]{$category}}; $k++) {
+             my $name = $cats->[$depth]{$category}[$k];
+             my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower;
+             my $trailstr = join(' -&gt; ',(@{$parents},$category));
+             if ($allitems->{$item} eq '') {
+                 push(@{$trails},$trailstr);
+                 $allitems->{$item} = scalar(@{$trails})-1;
+             }
+             my $deeper = $depth+1;
+             push(@{$parents},$category);
+             if (ref($subcats) eq 'HASH') {
+                 my $subcat = &escape($name).':'.$category.':'.$depth;
+                 for (my $j=@{$parents}; $j>=0; $j--) {
+                     my $higher;
+                     if ($j > 0) {
+                         $higher = &escape($parents->[$j]).':'.
+                                   &escape($parents->[$j-1]).':'.$j;
+                     } else {
+                         $higher = &escape($parents->[$j]).'::'.$j;
+                     }
+                     push(@{$subcats->{$higher}},$subcat);
+                 }
+             }
+             &recurse_categories($cats,$deeper,$name,$trails,$allitems,$parents,
+                                 $subcats);
+             pop(@{$parents});
+         }
+     } else {
+         my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower;
+         my $trailstr = join(' -&gt; ',(@{$parents},$category));
+         if ($allitems->{$item} eq '') {
+             push(@{$trails},$trailstr);
+             $allitems->{$item} = scalar(@{$trails})-1;
+         }
+     }
+     return;
+ }
+ =pod
+ =item *&assign_categories_table()
+ Create a datatable for display of hierarchical categories in a domain,
+ with checkboxes to allow a course to be categorized.
+ Inputs:
+ cathash - reference to hash of categories defined for the domain (from
+           configuration.db)
+ currcat - scalar with an & separated list of categories assigned to a course.
+ type    - scalar contains course type (Course or Community).
+ Returns: $output (markup to be displayed)
+ =cut
+ sub assign_categories_table {
+     my ($cathash,$currcat,$type) = @_;
+     my $output;
+     if (ref($cathash) eq 'HASH') {
+         my (@cats,@trails,%allitems,%idx,@jsarray,@path,$maxdepth);
+         &extract_categories($cathash,\@cats,\@trails,\%allitems,\%idx,\@jsarray);
+         $maxdepth = scalar(@cats);
+         if (@cats > 0) {
+             my $itemcount = 0;
+             if (ref($cats[0]) eq 'ARRAY') {
+                 my @currcategories;
+                 if ($currcat ne '') {
+                     @currcategories = split('&',$currcat);
+                 }
+                 my $table;
+                 for (my $i=0; $i<@{$cats[0]}; $i++) {
+                     my $parent = $cats[0][$i];
+                     next if ($parent eq 'instcode');
+                     if ($type eq 'Community') {
+                         next unless ($parent eq 'communities');
+                     } else {
+                         next if ($parent eq 'communities');
+                     }
+                     my $css_class = $itemcount%2?' class="LC_odd_row"':'';
+                     my $item = &escape($parent).'::0';
+                     my $checked = '';
+                     if (@currcategories > 0) {
+                         if (grep(/^\Q$item\E$/,@currcategories)) {
+                             $checked = ' checked="checked"';
+                         }
+                     }
+                     my $parent_title = $parent;
+                     if ($parent eq 'communities') {
+                         $parent_title = &mt('Communities');
+                     }
+                     $table .= '<tr '.$css_class.'><td><span class="LC_nobreak">'.
+                               '<input type="checkbox" name="usecategory" value="'.
+                               $item.'"'.$checked.' />'.$parent_title.'</span>'.
+                               '<input type="hidden" name="catname" value="'.$parent.'" /></td>';
+                     my $depth = 1;
+                     push(@path,$parent);
+                     $table .= &assign_category_rows($itemcount,\@cats,$depth,$parent,\@path,\@currcategories);
+                     pop(@path);
+                     $table .= '</tr><tr><td colspan="'.$maxdepth.'" class="LC_row_separator"></td></tr>';
+                     $itemcount ++;
+                 }
+                 if ($itemcount) {
+                     $output = &Apache::loncommon::start_data_table().
+                               $table.
+                               &Apache::loncommon::end_data_table();
+                 }
+             }
+         }
+     }
+     return $output;
+ }
+ =pod
+ =item *&assign_category_rows()
+ Create a datatable row for display of nested categories in a domain,
+ with checkboxes to allow a course to be categorized,called recursively.
+ Inputs:
+ itemcount - track row number for alternating colors
+ cats - reference to array of arrays/hashes which encapsulates hierarchy of
+       categories and subcategories.
+ depth - current depth in hierarchy of categories and sub-categories - 0 indexed.
+ parent - parent of current category item
+ path - Array containing all categories back up through the hierarchy from the
+        current category to the top level.
+ currcategories - reference to array of current categories assigned to the course
+ Returns: $output (markup to be displayed).
+ =cut
+ sub assign_category_rows {
+     my ($itemcount,$cats,$depth,$parent,$path,$currcategories) = @_;
+     my ($text,$name,$item,$chgstr);
+     if (ref($cats) eq 'ARRAY') {
+         my $maxdepth = scalar(@{$cats});
+         if (ref($cats->[$depth]) eq 'HASH') {
+             if (ref($cats->[$depth]{$parent}) eq 'ARRAY') {
+                 my $numchildren = @{$cats->[$depth]{$parent}};
+                 my $css_class = $itemcount%2?' class="LC_odd_row"':'';
+                 $text .= '<td><table class="LC_datatable">';
+                 for (my $j=0; $j<$numchildren; $j++) {
+                     $name = $cats->[$depth]{$parent}[$j];
+                     $item = &escape($name).':'.&escape($parent).':'.$depth;
+                     my $deeper = $depth+1;
+                     my $checked = '';
+                     if (ref($currcategories) eq 'ARRAY') {
+                         if (@{$currcategories} > 0) {
+                             if (grep(/^\Q$item\E$/,@{$currcategories})) {
+                                 $checked = ' checked="checked"';
+                             }
+                         }
+                     }
+                     $text .= '<tr><td><span class="LC_nobreak"><label>'.
+                              '<input type="checkbox" name="usecategory" value="'.
+                              $item.'"'.$checked.' />'.$name.'</label></span>'.
+                              '<input type="hidden" name="catname" value="'.$name.'" />'.
+                              '</td><td>';
+                     if (ref($path) eq 'ARRAY') {
+                         push(@{$path},$name);
+                         $text .= &assign_category_rows($itemcount,$cats,$deeper,$name,$path,$currcategories);
+                         pop(@{$path});
+                     }
+                     $text .= '</td></tr>';
+                 }
+                 $text .= '</table></td>';
+             }
+         }
+     }
+     return $text;
+ }
+ ############################################################
+ ############################################################
+ sub commit_customrole {
+     my ($udom,$uname,$url,$three,$four,$five,$start,$end,$context) = @_;
+     my $output = &mt('Assigning custom role').' "'.$five.'" by '.$four.':'.$three.' in '.$url.
+                          ($start?', '.&mt('starting').' '.localtime($start):'').
+                          ($end?', ending '.localtime($end):'').': <b>'.
+               &Apache::lonnet::assigncustomrole(
+                  $udom,$uname,$url,$three,$four,$five,$end,$start,undef,undef,$context).
+                  '</b><br />';
+     return $output;
+ }
+ sub commit_standardrole {
+     my ($udom,$uname,$url,$three,$start,$end,$one,$two,$sec,$context,$credits) = @_;
+     my ($output,$logmsg,$linefeed);
+     if ($context eq 'auto') {
+         $linefeed = "\n";
+     } else {
+         $linefeed = "<br />\n";
+     }
+     if ($three eq 'st') {
+         my $result = &commit_studentrole(\$logmsg,$udom,$uname,$url,$three,$start,$end,
+                                          $one,$two,$sec,$context,$credits);
+         if (($result =~ /^error/) || ($result eq 'not_in_class') ||
+             ($result eq 'unknown_course') || ($result eq 'refused')) {
+             $output = $logmsg.' '.&mt('Error: ').$result."\n";
+         } else {
+             $output = $logmsg.$linefeed.&mt('Assigning').' '.$three.' in '.$url.
+                ($start?', '.&mt('starting').' '.localtime($start):'').
+                ($end?', '.&mt('ending').' '.localtime($end):'').': ';
+             if ($context eq 'auto') {
+                 $output .= $result.$linefeed.&mt('Add to classlist').': ok';
+             } else {
+                $output .= '<b>'.$result.'</b>'.$linefeed.
+                &mt('Add to classlist').': <b>ok</b>';
+             }
+             $output .= $linefeed;
+         }
+     } else {
+         $output = &mt('Assigning').' '.$three.' in '.$url.
+                ($start?', '.&mt('starting').' '.localtime($start):'').
+                ($end?', '.&mt('ending').' '.localtime($end):'').': ';
+         my $result = &Apache::lonnet::assignrole($udom,$uname,$url,$three,$end,$start,'','',$context);
+         if ($context eq 'auto') {
+             $output .= $result.$linefeed;
+         } else {
+             $output .= '<b>'.$result.'</b>'.$linefeed;
+         }
+     }
+     return $output;
+ }
+ sub commit_studentrole {
+     my ($logmsg,$udom,$uname,$url,$three,$start,$end,$one,$two,$sec,$context,
+         $credits) = @_;
+     my ($result,$linefeed,$oldsecurl,$newsecurl);
+     if ($context eq 'auto') {
+         $linefeed = "\n";
+     } else {
+         $linefeed = '<br />'."\n";
+     }
+     if (defined($one) && defined($two)) {
+         my $cid=$one.'_'.$two;
+         my $oldsec=&Apache::lonnet::getsection($udom,$uname,$cid);
+         my $secchange = 0;
+         my $expire_role_result;
+         my $modify_section_result;
+         if ($oldsec ne '-1') {
+             if ($oldsec ne $sec) {
+                 $secchange = 1;
+                 my $now = time;
+                 my $uurl='/'.$cid;
+                 $uurl=~s/\_/\//g;
+                 if ($oldsec) {
+                     $uurl.='/'.$oldsec;
+                 }
+                 $oldsecurl = $uurl;
+                 $expire_role_result =
+                     &Apache::lonnet::assignrole($udom,$uname,$uurl,'st',$now,'','',$context);
+                 if ($env{'request.course.sec'} ne '') {
+                     if ($expire_role_result eq 'refused') {
+                         my @roles = ('st');
+                         my @statuses = ('previous');
+                         my @roledoms = ($one);
+                         my $withsec = 1;
+                         my %roleshash =
+                             &Apache::lonnet::get_my_roles($uname,$udom,'userroles',
+                                               \@statuses,\@roles,\@roledoms,$withsec);
+                         if (defined ($roleshash{$two.':'.$one.':st:'.$oldsec})) {
+                             my ($oldstart,$oldend) =
+                                 split(':',$roleshash{$two.':'.$one.':st:'.$oldsec});
+                             if ($oldend > 0 && $oldend <= $now) {
+                                 $expire_role_result = 'ok';
+                             }
+                         }
+                     }
+                 }
+                 $result = $expire_role_result;
+             }
+         }
+         if (($expire_role_result eq 'ok') || ($secchange == 0)) {
+             $modify_section_result =
+                 &Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,
+                                                            undef,undef,undef,$sec,
+                                                            $end,$start,'','',$cid,
+                                                            '',$context,$credits);
+             if ($modify_section_result =~ /^ok/) {
+                 if ($secchange == 1) {
+                     if ($sec eq '') {
+                         $$logmsg .= &mt('Section for [_1] switched from (possibly expired) old section: [_2] to student role without a section.',$uname,$oldsec).$linefeed;
+                     } else {
+                         $$logmsg .= &mt('Section for [_1] switched from (possibly expired) old section: [_2] to new section: [_3].',$uname,$oldsec,$sec).$linefeed;
+                     }
+                 } elsif ($oldsec eq '-1') {
+                     if ($sec eq '') {
+                         $$logmsg .= &mt('New student role without a section for [_1] in course [_2].',$uname,$cid).$linefeed;
+                     } else {
+                         $$logmsg .= &mt('New student role for [_1] in section [_2] in course [_3].',$uname,$sec,$cid).$linefeed;
+                     }
+                 } else {
+                     if ($sec eq '') {
+                         $$logmsg .= &mt('Student [_1] assigned to course [_2] without a section.',$uname,$cid).$linefeed;
+                     } else {
+                         $$logmsg .= &mt('Student [_1] assigned to section [_2] in course [_3].',$uname,$sec,$cid).$linefeed;
+                     }
+                 }
+             } else {
+                 if ($secchange) {
+                     $$logmsg .= &mt('Error when attempting section change for [_1] from old section "[_2]" to new section: "[_3]" in course [_4] -error:',$uname,$oldsec,$sec,$cid).' '.$modify_section_result.$linefeed;
+                 } else {
+                     $$logmsg .= &mt('Error when attempting to modify role for [_1] for section: "[_2]" in course [_3] -error:',$uname,$sec,$cid).' '.$modify_section_result.$linefeed;
+                 }
+             }
+             $result = $modify_section_result;
+         } elsif ($secchange == 1) {
+             if ($oldsec eq '') {
+                 $$logmsg .= &mt('Error when attempting to expire existing role without a section for [_1] in course [_2] -error: ',$uname,$cid).' '.$expire_role_result.$linefeed;
+             } else {
+                 $$logmsg .= &mt('Error when attempting to expire existing role for [_1] in section [_2] in course [_3] -error: ',$uname,$oldsec,$cid).' '.$expire_role_result.$linefeed;
+             }
+             if ($expire_role_result eq 'refused') {
+                 my $newsecurl = '/'.$cid;
+                 $newsecurl =~ s/\_/\//g;
+                 if ($sec ne '') {
+                     $newsecurl.='/'.$sec;
+                 }
+                 if (&Apache::lonnet::allowed('cst',$newsecurl) && !(&Apache::lonnet::allowed('cst',$oldsecurl))) {
+                     if ($sec eq '') {
+                         $$logmsg .= &mt('Although your current role has privileges to add students to section "[_1]", you do not have privileges to modify existing enrollments unaffiliated with any section.',$sec).$linefeed;
+                     } else {
+                         $$logmsg .= &mt('Although your current role has privileges to add students to section "[_1]", you do not have privileges to modify existing enrollments in other sections.',$sec).$linefeed;
+                     }
+                 }
+             }
+         }
+     } else {
+         $$logmsg .= &mt('Incomplete course id defined.').$linefeed.&mt('Addition of user [_1] from domain [_2] to course [_3], section [_4] not completed.',$uname,$udom,$one.'_'.$two,$sec).$linefeed;
+         $result = "error: incomplete course id\n";
+     }
+     return $result;
+ }
+ sub show_role_extent {
+     my ($scope,$context,$role) = @_;
+     $scope =~ s{^/}{};
+     my @courseroles = &Apache::lonuserutils::roles_by_context('course',1);
+     push(@courseroles,'co');
+     my @authorroles = &Apache::lonuserutils::roles_by_context('author');
+     if (($context eq 'course') || (grep(/^\Q$role\E/,@courseroles))) {
+         $scope =~ s{/}{_};
+         return '<span class="LC_cusr_emph">'.$env{'course.'.$scope.'.description'}.'</span>';
+     } elsif (($context eq 'author') || (grep(/^\Q$role\E/,@authorroles))) {
+         my ($audom,$auname) = split(/\//,$scope);
+         return &mt('[_1] Author Space','<span class="LC_cusr_emph">'.
+                    &Apache::loncommon::plainname($auname,$audom).'</span>');
+     } else {
+         $scope =~ s{/$}{};
+         return &mt('Domain: [_1]','<span class="LC_cusr_emph">'.
+                    &Apache::lonnet::domain($scope,'description').'</span>');
+     }
+ }
+ ############################################################
+ ############################################################
+ sub check_clone {
+     my ($args,$linefeed) = @_;
+     my $cloneid='/'.$args->{'clonedomain'}.'/'.$args->{'clonecourse'};
+     my ($clonecrsudom,$clonecrsunum)= &LONCAPA::split_courseid($cloneid);
+     my $clonehome=&Apache::lonnet::homeserver($clonecrsunum,$clonecrsudom);
+     my $clonemsg;
+     my $can_clone = 0;
+     my $lctype = lc($args->{'crstype'});
+     if ($lctype ne 'community') {
+         $lctype = 'course';
+     }
+     if ($clonehome eq 'no_host') {
+         if ($args->{'crstype'} eq 'Community') {
+             $clonemsg = &mt('No new community created.').$linefeed.&mt('A new community could not be cloned from the specified original - [_1] - because it is a non-existent community.',$args->{'clonecourse'}.':'.$args->{'clonedomain'});
+         } else {
+             $clonemsg = &mt('No new course created.').$linefeed.&mt('A new course could not be cloned from the specified original - [_1] - because it is a non-existent course.',$args->{'clonecourse'}.':'.$args->{'clonedomain'});
+         }
+     } else {
+ 	my %clonedesc = &Apache::lonnet::coursedescription($cloneid,{'one_time' => 1});
+         if ($args->{'crstype'} eq 'Community') {
+             if ($clonedesc{'type'} ne 'Community') {
+                  $clonemsg = &mt('No new community created.').$linefeed.&mt('A new community could not be cloned from the specified original - [_1] - because it is a course not a community.',$args->{'clonecourse'}.':'.$args->{'clonedomain'});
+                 return ($can_clone, $clonemsg, $cloneid, $clonehome);
+             }
+         }
+ 	if (($env{'request.role.domain'} eq $args->{'clonedomain'}) &&
+             (&Apache::lonnet::allowed('ccc',$env{'request.role.domain'}))) {
+ 	    $can_clone = 1;
+ 	} else {
+ 	    my %clonehash = &Apache::lonnet::get('environment',['cloners'],
+ 						 $args->{'clonedomain'},$args->{'clonecourse'});
+ 	    my @cloners = split(/,/,$clonehash{'cloners'});
+             if (grep(/^\*$/,@cloners)) {
+                 $can_clone = 1;
+             } elsif (grep(/^\*\:\Q$args->{'ccdomain'}\E$/,@cloners)) {
+                 $can_clone = 1;
+             } else {
+                 my $ccrole = 'cc';
+                 if ($args->{'crstype'} eq 'Community') {
+                     $ccrole = 'co';
+                 }
+ 	        my %roleshash =
+ 		    &Apache::lonnet::get_my_roles($args->{'ccuname'},
+ 					 $args->{'ccdomain'},
+                                          'userroles',['active'],[$ccrole],
+ 					 [$args->{'clonedomain'}]);
+ 	        if (($roleshash{$args->{'clonecourse'}.':'.$args->{'clonedomain'}.':'.$ccrole}) || (grep(/^\Q$args->{'ccuname'}\E:\Q$args->{'ccdomain'}\E$/,@cloners))) {
+                     $can_clone = 1;
+                 } elsif (&Apache::lonnet::is_course_owner($args->{'clonedomain'},$args->{'clonecourse'},$args->{'ccuname'},$args->{'ccdomain'})) {
+                     $can_clone = 1;
+                 } else {
+                     if ($args->{'crstype'} eq 'Community') {
+                         $clonemsg = &mt('No new community created.').$linefeed.&mt('The new community could not be cloned from the existing community because the new community owner ([_1]) does not have cloning rights in the existing community ([_2]).',$args->{'ccuname'}.':'.$args->{'ccdomain'},$clonedesc{'description'});
+                     } else {
+                         $clonemsg = &mt('No new course created.').$linefeed.&mt('The new course could not be cloned from the existing course because the new course owner ([_1]) does not have cloning rights in the existing course ([_2]).',$args->{'ccuname'}.':'.$args->{'ccdomain'},$clonedesc{'description'});
+                     }
+ 	        }
+ 	    }
+         }
+     }
+     return ($can_clone, $clonemsg, $cloneid, $clonehome);
+ }
+ sub construct_course {
+     my ($args,$logmsg,$courseid,$crsudom,$crsunum,$udom,$uname,$context,$cnum,$category) = @_;
+     my $outcome;
+     my $linefeed =  '<br />'."\n";
+     if ($context eq 'auto') {
+         $linefeed = "\n";
+     }
+ #
+ # Are we cloning?
+ #
+     my ($can_clone, $clonemsg, $cloneid, $clonehome);
+     if (($args->{'clonecourse'}) && ($args->{'clonedomain'})) {
+ 	($can_clone, $clonemsg, $cloneid, $clonehome) = &check_clone($args,$linefeed);
+ 	if ($context ne 'auto') {
+             if ($clonemsg ne '') {
+ 	        $clonemsg = '<span class="LC_error">'.$clonemsg.'</span>';
+             }
+ 	}
+ 	$outcome .= $clonemsg.$linefeed;
+         if (!$can_clone) {
+ 	    return (0,$outcome);
+ 	}
+     }
+ #
+ # Open course
+ #
+     my $crstype = lc($args->{'crstype'});
+     my %cenv=();
+     $$courseid=&Apache::lonnet::createcourse($args->{'course_domain'},
+                                              $args->{'cdescr'},
+                                              $args->{'curl'},
+                                              $args->{'course_home'},
+                                              $args->{'nonstandard'},
+                                              $args->{'crscode'},
+                                              $args->{'ccuname'}.':'.
+                                              $args->{'ccdomain'},
+                                              $args->{'crstype'},
+                                              $cnum,$context,$category);
+     # Note: The testing routines depend on this being output; see
+     # Utils::Course. This needs to at least be output as a comment
+     # if anyone ever decides to not show this, and Utils::Course::new
+     # will need to be suitably modified.
+     $outcome .= &mt('New LON-CAPA [_1] ID: [_2]',$crstype,$$courseid).$linefeed;
+     if ($$courseid =~ /^error:/) {
+         return (0,$outcome);
+     }
+ #
+ # Check if created correctly
+ #
+     ($$crsudom,$$crsunum)= &LONCAPA::split_courseid($$courseid);
+     my $crsuhome=&Apache::lonnet::homeserver($$crsunum,$$crsudom);
+     if ($crsuhome eq 'no_host') {
+         $outcome .= &mt('Course creation failed, unrecognized course home server.').$linefeed;
+         return (0,$outcome);
+     }
+     $outcome .= &mt('Created on').': '.$crsuhome.$linefeed;
+ #
+ # Do the cloning
+ #
+     if ($can_clone && $cloneid) {
+ 	$clonemsg = &mt('Cloning [_1] from [_2]',$crstype,$clonehome);
+ 	if ($context ne 'auto') {
+ 	    $clonemsg = '<span class="LC_success">'.$clonemsg.'</span>';
+ 	}
+ 	$outcome .= $clonemsg.$linefeed;
+ 	my %oldcenv=&Apache::lonnet::dump('environment',$$crsudom,$$crsunum);
+ # Copy all files
+ 	&Apache::lonclonecourse::copycoursefiles($cloneid,$$courseid,$args->{'datemode'},$args->{'dateshift'});
+ # Restore URL
+ 	$cenv{'url'}=$oldcenv{'url'};
+ # Restore title
+ 	$cenv{'description'}=$oldcenv{'description'};
+ # Restore creation date, creator and creation context.
+         $cenv{'internal.created'}=$oldcenv{'internal.created'};
+         $cenv{'internal.creator'}=$oldcenv{'internal.creator'};
+         $cenv{'internal.creationcontext'}=$oldcenv{'internal.creationcontext'};
+ # Mark as cloned
+ 	$cenv{'clonedfrom'}=$cloneid;
+ # Need to clone grading mode
+         my %newenv=&Apache::lonnet::get('environment',['grading'],$$crsudom,$$crsunum);
+         $cenv{'grading'}=$newenv{'grading'};
+ # Do not clone these environment entries
+         &Apache::lonnet::del('environment',
+                   ['default_enrollment_start_date',
+                    'default_enrollment_end_date',
+                    'question.email',
+                    'policy.email',
+                    'comment.email',
+                    'pch.users.denied',
+                    'plc.users.denied',
+                    'hidefromcat',
+                    'checkforpriv',
+                    'categories'],
+                    $$crsudom,$$crsunum);
+     }
+ #
+ # Set environment (will override cloned, if existing)
+ #
+     my @sections = ();
+     my @xlists = ();
+     if ($args->{'crstype'}) {
+         $cenv{'type'}=$args->{'crstype'};
+     }
+     if ($args->{'crsid'}) {
+         $cenv{'courseid'}=$args->{'crsid'};
+     }
+     if ($args->{'crscode'}) {
+         $cenv{'internal.coursecode'}=$args->{'crscode'};
+     }
+     if ($args->{'crsquota'} ne '') {
+         $cenv{'internal.coursequota'}=$args->{'crsquota'};
+     } else {
+         $cenv{'internal.coursequota'}=$args->{'crsquota'} = 20;
+     }
+     if ($args->{'ccuname'}) {
+         $cenv{'internal.courseowner'} = $args->{'ccuname'}.
+                                         ':'.$args->{'ccdomain'};
+     } else {
+         $cenv{'internal.courseowner'} = $args->{'curruser'};
+     }
+     if ($args->{'defaultcredits'}) {
+         $cenv{'internal.defaultcredits'} = $args->{'defaultcredits'};
+     }
+     my @badclasses = (); # Used to accumulate sections/crosslistings that did not pass classlist access check for course owner.
+     if ($args->{'crssections'}) {
+         $cenv{'internal.sectionnums'} = '';
+         if ($args->{'crssections'} =~ m/,/) {
+             @sections = split/,/,$args->{'crssections'};
+         } else {
+             $sections[0] = $args->{'crssections'};
+         }
+         if (@sections > 0) {
+             foreach my $item (@sections) {
+                 my ($sec,$gp) = split/:/,$item;
+                 my $class = $args->{'crscode'}.$sec;
+                 my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$class,$cenv{'internal.courseowner'});
+                 $cenv{'internal.sectionnums'} .= $item.',';
+                 unless ($addcheck eq 'ok') {
+                     push @badclasses, $class;
+                 }
+             }
+             $cenv{'internal.sectionnums'} =~ s/,$//;
+         }
+     }
+ # do not hide course coordinator from staff listing,
+ # even if privileged
+     $cenv{'nothideprivileged'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
+ # add course coordinator's domain to domains to check for privileged users
+ # if different to course domain
+     if ($$crsudom ne $args->{'ccdomain'}) {
+         $cenv{'checkforpriv'} = $args->{'ccdomain'};
+     }
+ # add crosslistings
+     if ($args->{'crsxlist'}) {
+         $cenv{'internal.crosslistings'}='';
+         if ($args->{'crsxlist'} =~ m/,/) {
+             @xlists = split/,/,$args->{'crsxlist'};
+         } else {
+             $xlists[0] = $args->{'crsxlist'};
+         }
+         if (@xlists > 0) {
+             foreach my $item (@xlists) {
+                 my ($xl,$gp) = split/:/,$item;
+                 my $addcheck =  &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$xl,$cenv{'internal.courseowner'});
+                 $cenv{'internal.crosslistings'} .= $item.',';
+                 unless ($addcheck eq 'ok') {
+                     push @badclasses, $xl;
+                 }
+             }
+             $cenv{'internal.crosslistings'} =~ s/,$//;
+         }
+     }
+     if ($args->{'autoadds'}) {
+         $cenv{'internal.autoadds'}=$args->{'autoadds'};
+     }
+     if ($args->{'autodrops'}) {
+         $cenv{'internal.autodrops'}=$args->{'autodrops'};
+     }
+ # check for notification of enrollment changes
+     my @notified = ();
+     if ($args->{'notify_owner'}) {
+         if ($args->{'ccuname'} ne '') {
+             push(@notified,$args->{'ccuname'}.':'.$args->{'ccdomain'});
+         }
+     }
+     if ($args->{'notify_dc'}) {
+         if ($uname ne '') {
+             push(@notified,$uname.':'.$udom);
+         }
+     }
+     if (@notified > 0) {
+         my $notifylist;
+         if (@notified > 1) {
+             $notifylist = join(',',@notified);
+         } else {
+             $notifylist = $notified[0];
+         }
+         $cenv{'internal.notifylist'} = $notifylist;
+     }
+     if (@badclasses > 0) {
+         my %lt=&Apache::lonlocal::texthash(
+                 'tclb' => 'The courses listed below were included as sections or crosslistings affiliated with your new LON-CAPA course.  However, if automated course roster updates are enabled for this class, these particular sections/crosslistings will not contribute towards enrollment, because the user identified as the course owner for this LON-CAPA course',
+                 'dnhr' => 'does not have rights to access enrollment in these classes',
+                 'adby' => 'as determined by the policies of your institution on access to official classlists'
+         );
+         my $badclass_msg = $cenv{'internal.courseowner'}.') - '.$lt{'dnhr'}.
+                            ' ('.$lt{'adby'}.')';
+         if ($context eq 'auto') {
+             $outcome .= $badclass_msg.$linefeed;
+             $outcome .= '<div class="LC_warning">'.$badclass_msg.$linefeed.'<ul>'."\n";
+             foreach my $item (@badclasses) {
+                 if ($context eq 'auto') {
+                     $outcome .= " - $item\n";
+                 } else {
+                     $outcome .= "<li>$item</li>\n";
+                 }
+             }
+             if ($context eq 'auto') {
+                 $outcome .= $linefeed;
+             } else {
+                 $outcome .= "</ul><br /><br /></div>\n";
+             }
+         }
+     }
+     if ($args->{'no_end_date'}) {
+         $args->{'endaccess'} = 0;
+     }
+     $cenv{'internal.autostart'}=$args->{'enrollstart'};
+     $cenv{'internal.autoend'}=$args->{'enrollend'};
+     $cenv{'default_enrollment_start_date'}=$args->{'startaccess'};
+     $cenv{'default_enrollment_end_date'}=$args->{'endaccess'};
+     if ($args->{'showphotos'}) {
+       $cenv{'internal.showphotos'}=$args->{'showphotos'};
+     }
+     $cenv{'internal.authtype'} = $args->{'authtype'};
+     $cenv{'internal.autharg'} = $args->{'autharg'};
+     if ( ($cenv{'internal.authtype'} =~ /^krb/) && ($cenv{'internal.autoadds'} == 1)) {
+         if (! defined($cenv{'internal.autharg'}) || $cenv{'internal.autharg'}  eq '') {
+             my $krb_msg = &mt('As you did not include the default Kerberos domain to be used for authentication in this class, the institutional data used by the automated enrollment process must include the Kerberos domain for each new student');
+             if ($context eq 'auto') {
+                 $outcome .= $krb_msg;
+             } else {
+                 $outcome .= '<span class="LC_error">'.$krb_msg.'</span>';
+             }
+             $outcome .= $linefeed;
+         }
+     }
+     if (($args->{'ccdomain'}) && ($args->{'ccuname'})) {
+        if ($args->{'setpolicy'}) {
+            $cenv{'policy.email'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
+        }
+        if ($args->{'setcontent'}) {
+            $cenv{'question.email'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
+        }
+     }
+     if ($args->{'reshome'}) {
+ 	$cenv{'reshome'}=$args->{'reshome'}.'/';
+ 	$cenv{'reshome'}=~s/\/+$/\//;
+     }
+ #
+ # course has keyed access
+ #
+     if ($args->{'setkeys'}) {
+        $cenv{'keyaccess'}='yes';
+     }
+ # if specified, key authority is not course, but user
+ # only active if keyaccess is yes
+     if ($args->{'keyauth'}) {
+ 	my ($user,$domain) = split(':',$args->{'keyauth'});
+ 	$user = &LONCAPA::clean_username($user);
+ 	$domain = &LONCAPA::clean_username($domain);
+ 	if ($user ne '' && $domain ne '') {
+ 	    $cenv{'keyauth'}=$user.':'.$domain;
+ 	}
+     }
+     if ($args->{'disresdis'}) {
+         $cenv{'pch.roles.denied'}='st';
+     }
+     if ($args->{'disablechat'}) {
+         $cenv{'plc.roles.denied'}='st';
+     }
+     # Record we've not yet viewed the Course Initialization Helper for this
+     # course
+     $cenv{'course.helper.not.run'} = 1;
+     #
+     # Use new Randomseed
+     #
+     $cenv{'rndseed'}=&Apache::lonnet::latest_rnd_algorithm_id();;
+     $cenv{'receiptalg'}=&Apache::lonnet::latest_receipt_algorithm_id();;
+     #
+     # The encryption code and receipt prefix for this course
+     #
+     $cenv{'internal.encseed'}=$Apache::lonnet::perlvar{'lonReceipt'}.$$.time.int(rand(9999));
+     $cenv{'internal.encpref'}=100+int(9*rand(99));
+     #
+     # By default, use standard grading
+     if (!defined($cenv{'grading'})) { $cenv{'grading'} = 'standard'; }
+     $outcome .= $linefeed.&mt('Setting environment').': '.
+           &Apache::lonnet::put('environment',\%cenv,$$crsudom,$$crsunum).$linefeed;
+ #
+ # Open all assignments
+ #
+     if ($args->{'openall'}) {
+        my $storeunder=$$crsudom.'_'.$$crsunum.'.0.opendate';
+        my %storecontent = ($storeunder         => time,
+                            $storeunder.'.type' => 'date_start');
+        $outcome .= &mt('Opening all assignments').': '.&Apache::lonnet::cput
+                  ('resourcedata',\%storecontent,$$crsudom,$$crsunum).$linefeed;
+    }
+ #
+ # Set first page
+ #
+     unless (($args->{'nonstandard'}) || ($args->{'firstres'} eq 'blank')
+ 	    || ($cloneid)) {
+ 	use LONCAPA::map;
+ 	$outcome .= &mt('Setting first resource').': ';
+ 	my $map = '/uploaded/'.$$crsudom.'/'.$$crsunum.'/default.sequence';
+         my ($errtext,$fatal)=&LONCAPA::map::mapread($map);
+         $outcome .= ($fatal?$errtext:'read ok').' - ';
+         my $title; my $url;
+         if ($args->{'firstres'} eq 'syl') {
+ 	    $title=&mt('Syllabus');
+             $url='/public/'.$$crsudom.'/'.$$crsunum.'/syllabus';
+         } else {
+             $title=&mt('Table of Contents');
+             $url='/adm/navmaps';
+         }
+         $LONCAPA::map::resources[1]=$title.':'.$url.':false:start:res';
+ 	(my $outtext,$errtext) = &LONCAPA::map::storemap($map,1);
+ 	if ($errtext) { $fatal=2; }
+         $outcome .= ($fatal?$errtext:'write ok').$linefeed;
+     }
+     return (1,$outcome);
+ }
+ ############################################################
+ ############################################################
+ #SD
+ # only Community and Course, or anything else?
+ sub course_type {
+     my ($cid) = @_;
+     if (!defined($cid)) {
+         $cid = $env{'request.course.id'};
+     }
+     if (defined($env{'course.'.$cid.'.type'})) {
+         return $env{'course.'.$cid.'.type'};
+     } else {
+         return 'Course';
+     }
+ }
+ sub group_term {
+     my $crstype = &course_type();
+     my %names = (
+                   'Course' => 'group',
+                   'Community' => 'group',
+                 );
+     return $names{$crstype};
+ }
+ sub course_types {
+     my @types = ('official','unofficial','community');
+     my %typename = (
+                          official   => 'Official course',
+                          unofficial => 'Unofficial course',
+                          community  => 'Community',
+                    );
+     return (\@types,\%typename);
+ }
+ sub icon {
+     my ($file)=@_;
+     my $curfext = lc((split(/\./,$file))[-1]);
+     my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
+     my $embstyle = &Apache::loncommon::fileembstyle($curfext);
+     if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
+ 	if (-e  $Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
+ 	          $Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
+ 	            $curfext.".gif") {
+ 	    $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
+ 		$curfext.".gif";
+ 	}
+     }
+     return &lonhttpdurl($iconname);
+ }
+ sub lonhttpdurl {
+ #
+ # Had been used for "small fry" static images on separate port 8080.
+ # Modify here if lightweight http functionality desired again.
+ # Currently eliminated due to increasing firewall issues.
+ #
+     my ($url)=@_;
+     return $url;
+ }
+ sub connection_aborted {
+     my ($r)=@_;
+     $r->print(" ");$r->rflush();
+     my $c = $r->connection;
+     return $c->aborted();
+ }
+ #    Escapes strings that may have embedded 's that will be put into
+ #    strings as 'strings'.
+ sub escape_single {
+     my ($input) = @_;
+     $input =~ s/\\/\\\\/g;	# Escape the \'s..(must be first)>
+     $input =~ s/\'/\\\'/g;	# Esacpe the 's....
+     return $input;
+ }
+ #  Same as escape_single, but escape's "'s  This
+ #  can be used for  "strings"
+ sub escape_double {
+     my ($input) = @_;
+     $input =~ s/\\/\\\\/g;	# Escape the /'s..(must be first)>
+     $input =~ s/\"/\\\"/g;	# Esacpe the "s....
+     return $input;
+ }
+ #   Escapes the last element of a full URL.
+ sub escape_url {
+     my ($url)   = @_;
+     my @urlslices = split(/\//, $url,-1);
+     my $lastitem = &escape(pop(@urlslices));
+     return join('/',@urlslices).'/'.$lastitem;
+ }
+ sub compare_arrays {
+     my ($arrayref1,$arrayref2) = @_;
+     my (@difference,%count);
+     @difference = ();
+     %count = ();
+     if ((ref($arrayref1) eq 'ARRAY') && (ref($arrayref2) eq 'ARRAY')) {
+         foreach my $element (@{$arrayref1}, @{$arrayref2}) { $count{$element}++; }
+         foreach my $element (keys(%count)) {
+             if ($count{$element} == 1) {
+                 push(@difference,$element);
+             }
+         }
+     }
+     return @difference;
+ }
+ # -------------------------------------------------------- Initialize user login
+ sub init_user_environment {
+     my ($r, $username, $domain, $authhost, $form, $args) = @_;
+     my $lonids=$Apache::lonnet::perlvar{'lonIDsDir'};
+     my $public=($username eq 'public' && $domain eq 'public');
+ # See if old ID present, if so, remove
+     my ($filename,$cookie,$userroles,$firstaccenv,$timerintenv);
+     my $now=time;
+     if ($public) {
+ 	my $max_public=100;
+ 	my $oldest;
+ 	my $oldest_time=0;
+ 	for(my $next=1;$next<=$max_public;$next++) {
+ 	    if (-e $lonids."/publicuser_$next.id") {
+ 		my $mtime=(stat($lonids."/publicuser_$next.id"))[9];
+ 		if ($mtime<$oldest_time || !$oldest_time) {
+ 		    $oldest_time=$mtime;
+ 		    $oldest=$next;
+ 		}
+ 	    } else {
+ 		$cookie="publicuser_$next";
+ 		last;
+ 	    }
+ 	}
+ 	if (!$cookie) { $cookie="publicuser_$oldest"; }
+     } else {
+ 	# if this isn't a robot, kill any existing non-robot sessions
+ 	if (!$args->{'robot'}) {
+ 	    opendir(DIR,$lonids);
+ 	    while ($filename=readdir(DIR)) {
+ 		if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {
+ 		    unlink($lonids.'/'.$filename);
+ 		}
+ 	    }
+ 	    closedir(DIR);
+ 	}
+ # Give them a new cookie
+ 	my $id = ($args->{'robot'} ? 'robot'.$args->{'robot'}
+ 		                   : $now.$$.int(rand(10000)));
+ 	$cookie="$username\_$id\_$domain\_$authhost";
+ # Initialize roles
+ 	($userroles,$firstaccenv,$timerintenv) =
+             &Apache::lonnet::rolesinit($domain,$username,$authhost);
+     }
+ # ------------------------------------ Check browser type and MathML capability
+     my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
+         $clientunicode,$clientos) = &decode_user_agent($r);
+ # ------------------------------------------------------------- Get environment
+     my %userenv = &Apache::lonnet::dump('environment',$domain,$username);
+     my ($tmp) = keys(%userenv);
+     if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
+     } else {
+ 	undef(%userenv);
+     }
+     if (($userenv{'interface'}) && (!$form->{'interface'})) {
+ 	$form->{'interface'}=$userenv{'interface'};
+     }
+     if ($userenv{'texengine'} eq 'ttm') { $clientmathml=1; }
+ # --------------- Do not trust query string to be put directly into environment
+     foreach my $option ('interface','localpath','localres') {
+         $form->{$option}=~s/[\n\r\=]//gs;
+     }
+ # --------------------------------------------------------- Write first profile
+     {
+ 	my %initial_env =
+ 	    ("user.name"          => $username,
+ 	     "user.domain"        => $domain,
+ 	     "user.home"          => $authhost,
+ 	     "browser.type"       => $clientbrowser,
+ 	     "browser.version"    => $clientversion,
+ 	     "browser.mathml"     => $clientmathml,
+ 	     "browser.unicode"    => $clientunicode,
+ 	     "browser.os"         => $clientos,
+ 	     "server.domain"      => $Apache::lonnet::perlvar{'lonDefDomain'},
+ 	     "request.course.fn"  => '',
+ 	     "request.course.uri" => '',
+ 	     "request.course.sec" => '',
+ 	     "request.role"       => 'cm',
+ 	     "request.role.adv"   => $env{'user.adv'},
+ 	     "request.host"       => $ENV{'REMOTE_ADDR'},);
+         if ($form->{'localpath'}) {
+ 	    $initial_env{"browser.localpath"}  = $form->{'localpath'};
+ 	    $initial_env{"browser.localres"}   = $form->{'localres'};
+         }
+ 	if ($form->{'interface'}) {
+ 	    $form->{'interface'}=~s/\W//gs;
+ 	    $initial_env{"browser.interface"} = $form->{'interface'};
+ 	    $env{'browser.interface'}=$form->{'interface'};
+ 	}
+         my %is_adv = ( is_adv => $env{'user.adv'} );
+         my %domdef;
+         unless ($domain eq 'public') {
+             %domdef = &Apache::lonnet::get_domain_defaults($domain);
+         }
+         foreach my $tool ('aboutme','blog','webdav','portfolio') {
+             $userenv{'availabletools.'.$tool} =
+                 &Apache::lonnet::usertools_access($username,$domain,$tool,'reload',
+                                                   undef,\%userenv,\%domdef,\%is_adv);
+         }
+         foreach my $crstype ('official','unofficial','community') {
+             $userenv{'canrequest.'.$crstype} =
+                 &Apache::lonnet::usertools_access($username,$domain,$crstype,
+                                                   'reload','requestcourses',
+                                                   \%userenv,\%domdef,\%is_adv);
+         }
+         $userenv{'canrequest.author'} =
+             &Apache::lonnet::usertools_access($username,$domain,'requestauthor',
+                                         'reload','requestauthor',
+                                         \%userenv,\%domdef,\%is_adv);
+         my %reqauthor = &Apache::lonnet::get('requestauthor',['author_status','author'],
+                                              $domain,$username);
+         my $reqstatus = $reqauthor{'author_status'};
+         if ($reqstatus eq 'approval' || $reqstatus eq 'approved') {
+             if (ref($reqauthor{'author'}) eq 'HASH') {
+                 $userenv{'requestauthorqueued'} = $reqstatus.':'.
+                                                   $reqauthor{'author'}{'timestamp'};
+             }
+         }
+ 	$env{'user.environment'} = "$lonids/$cookie.id";
+ 	if (tie(my %disk_env,'GDBM_File',"$lonids/$cookie.id",
+ 		 &GDBM_WRCREAT(),0640)) {
+ 	    &_add_to_env(\%disk_env,\%initial_env);
+ 	    &_add_to_env(\%disk_env,\%userenv,'environment.');
+ 	    &_add_to_env(\%disk_env,$userroles);
+             if (ref($firstaccenv) eq 'HASH') {
+                 &_add_to_env(\%disk_env,$firstaccenv);
+             }
+             if (ref($timerintenv) eq 'HASH') {
+                 &_add_to_env(\%disk_env,$timerintenv);
+             }
+ 	    if (ref($args->{'extra_env'})) {
+ 		&_add_to_env(\%disk_env,$args->{'extra_env'});
+ 	    }
+ 	    untie(%disk_env);
+ 	} else {
+ 	    &Apache::lonnet::logthis("<span style=\"color:blue;\">WARNING: ".
+ 			   'Could not create environment storage in lonauth: '.$!.'</span>');
+ 	    return 'error: '.$!;
+ 	}
+     }
+     $env{'request.role'}='cm';
+     $env{'request.role.adv'}=$env{'user.adv'};
+     $env{'browser.type'}=$clientbrowser;
+     return $cookie;
+ }
+ sub _add_to_env {
+     my ($idf,$env_data,$prefix) = @_;
+     if (ref($env_data) eq 'HASH') {
+         while (my ($key,$value) = each(%$env_data)) {
+ 	    $idf->{$prefix.$key} = $value;
+ 	    $env{$prefix.$key}   = $value;
+         }
+     }
+ }
+ # --- Get the symbolic name of a problem and the url
+ sub get_symb {
+     my ($request,$silent) = @_;
+     (my $url=$env{'form.url'}) =~ s-^https?\://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
+     my $symb=($env{'form.symb'} ne '' ? $env{'form.symb'} : (&Apache::lonnet::symbread($url)));
+     if ($symb eq '') {
+         if (!$silent) {
+             if (ref($request)) {
+                 $request->print("Unable to handle ambiguous references:$url:.");
+             }
+             return ();
+         }
+     }
+     &Apache::lonenc::check_decrypt(\$symb);
+     return ($symb);
+ }
+ # --------------------------------------------------------------Get annotation
+ sub get_annotation {
+     my ($symb,$enc) = @_;
+     my $key = $symb;
+     if (!$enc) {
+         $key =
+             &Apache::lonnet::clutter((&Apache::lonnet::decode_symb($symb))[2]);
+     }
+     my %annotation=&Apache::lonnet::get('nohist_annotations',[$key]);
+     return $annotation{$key};
+ }
+ sub clean_symb {
+     my ($symb,$delete_enc) = @_;
+     &Apache::lonenc::check_decrypt(\$symb);
+     my $enc = $env{'request.enc'};
+     if ($delete_enc) {
+         delete($env{'request.enc'});
+     }
+     return ($symb,$enc);
+ }
+ sub build_release_hashes {
+     my ($checkparms,$checkresponsetypes,$checkcrstypes,$anonsurvey,$randomizetry) = @_;
+     return unless((ref($checkparms) eq 'HASH') && (ref($checkresponsetypes) eq 'HASH') &&
+                   (ref($checkcrstypes) eq 'HASH') && (ref($anonsurvey) eq 'HASH') &&
+                   (ref($randomizetry) eq 'HASH'));
+     foreach my $key (keys(%Apache::lonnet::needsrelease)) {
+         my ($item,$name,$value) = split(/:/,$key);
+         if ($item eq 'parameter') {
+             if (ref($checkparms->{$name}) eq 'ARRAY') {
+                 unless(grep(/^\Q$name\E$/,@{$checkparms->{$name}})) {
+                     push(@{$checkparms->{$name}},$value);
+                 }
+             } else {
+                 push(@{$checkparms->{$name}},$value);
+             }
+         } elsif ($item eq 'resourcetag') {
+             if ($name eq 'responsetype') {
+                 $checkresponsetypes->{$value} = $Apache::lonnet::needsrelease{$key}
+             }
+         } elsif ($item eq 'course') {
+             if ($name eq 'crstype') {
+                 $checkcrstypes->{$value} = $Apache::lonnet::needsrelease{$key};
+             }
+         }
+     }
+     ($anonsurvey->{major},$anonsurvey->{minor}) = split(/\./,$Apache::lonnet::needsrelease{'parameter:type:anonsurvey'});
+     ($randomizetry->{major},$randomizetry->{minor}) = split(/\./,$Apache::lonnet::needsrelease{'parameter:type:randomizetry'});
+     return;
+ }
+ sub update_content_constraints {
+     my ($cdom,$cnum,$chome,$cid) = @_;
+     my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
+     my ($reqdmajor,$reqdminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
+     my %checkresponsetypes;
+     foreach my $key (keys(%Apache::lonnet::needsrelease)) {
+         my ($item,$name,$value) = split(/:/,$key);
+         if ($item eq 'resourcetag') {
+             if ($name eq 'responsetype') {
+                 $checkresponsetypes{$value} = $Apache::lonnet::needsrelease{$key}
+             }
+         }
+     }
+     my $navmap = Apache::lonnavmaps::navmap->new();
+     if (defined($navmap)) {
+         my %allresponses;
+         foreach my $res ($navmap->retrieveResources(undef,sub { $_[0]->is_problem() },1,0)) {
+             my %responses = $res->responseTypes();
+             foreach my $key (keys(%responses)) {
+                 next unless(exists($checkresponsetypes{$key}));
+                 $allresponses{$key} += $responses{$key};
+             }
+         }
+         foreach my $key (keys(%allresponses)) {
+             my ($major,$minor) = split(/\./,$checkresponsetypes{$key});
+             if (($major > $reqdmajor) || ($major == $reqdmajor && $minor > $reqdminor)) {
+                 ($reqdmajor,$reqdminor) = ($major,$minor);
+             }
+         }
+         undef($navmap);
+     }
+     unless (($reqdmajor eq '') && ($reqdminor eq '')) {
+         &Apache::lonnet::update_released_required($reqdmajor.'.'.$reqdminor,$cdom,$cnum,$chome,$cid);
+     }
+     return;
+ }
+ sub allmaps_incourse {
+     my ($cdom,$cnum,$chome,$cid) = @_;
+     if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
+         $cid = $env{'request.course.id'};
+         $cdom = $env{'course.'.$cid.'.domain'};
+         $cnum = $env{'course.'.$cid.'.num'};
+         $chome = $env{'course.'.$cid.'.home'};
+     }
+     my %allmaps = ();
+     my $lastchange =
+         &Apache::lonnet::get_coursechange($cdom,$cnum);
+     if ($lastchange > $env{'request.course.tied'}) {
+         my ($furl,$ferr) = &Apache::lonuserstate::readmap("$cdom/$cnum");
+         unless ($ferr) {
+             &update_content_constraints($cdom,$cnum,$chome,$cid);
+         }
+     }
+     my $navmap = Apache::lonnavmaps::navmap->new();
+     if (defined($navmap)) {
+         foreach my $res ($navmap->retrieveResources(undef,sub { $_[0]->is_map() },1,0,1)) {
+             $allmaps{$res->src()} = 1;
+         }
+     }
+     return \%allmaps;
+ }
+ sub parse_supplemental_title {
+     my ($title) = @_;
+     my ($foldertitle,$renametitle);
+     if ($title =~ /&amp;&amp;&amp;/) {
+         $title = &HTML::Entites::decode($title);
+     }
+     if ($title =~ m/^(\d+)___&&&___($match_username)___&&&___($match_domain)___&&&___(.*)$/) {
+         $renametitle=$4;
+         my ($time,$uname,$udom) = ($1,$2,$3);
+         $foldertitle=&Apache::lontexconvert::msgtexconverted($4);
+         my $name =  &plainname($uname,$udom);
+         $name = &HTML::Entities::encode($name,'"<>&\'');
+         $renametitle = &HTML::Entities::encode($renametitle,'"<>&\'');
+         $title='<i>'.&Apache::lonlocal::locallocaltime($time).'</i> '.
+             $name.': <br />'.$foldertitle;
+     }
+     if (wantarray) {
+         return ($title,$foldertitle,$renametitle);
+     }
+     return $title;
+ }
+ sub symb_to_docspath {
+     my ($symb) = @_;
+     return unless ($symb);
+     my ($mapurl,$id,$resurl) = &Apache::lonnet::decode_symb($symb);
+     if ($resurl=~/\.(sequence|page)$/) {
+         $mapurl=$resurl;
+     } elsif ($resurl eq 'adm/navmaps') {
+         $mapurl=$env{'course.'.$env{'request.course.id'}.'.url'};
+     }
+     my $mapresobj;
+     my $navmap = Apache::lonnavmaps::navmap->new();
+     if (ref($navmap)) {
+         $mapresobj = $navmap->getResourceByUrl($mapurl);
+     }
+     $mapurl=~s{^.*/([^/]+)\.(\w+)$}{$1};
+     my $type=$2;
+     my $path;
+     if (ref($mapresobj)) {
+         my $pcslist = $mapresobj->map_hierarchy();
+         if ($pcslist ne '') {
+             foreach my $pc (split(/,/,$pcslist)) {
+                 next if ($pc <= 1);
+                 my $res = $navmap->getByMapPc($pc);
+                 if (ref($res)) {
+                     my $thisurl = $res->src();
+                     $thisurl=~s{^.*/([^/]+)\.\w+$}{$1};
+                     my $thistitle = $res->title();
+                     $path .= '&'.
+                              &Apache::lonhtmlcommon::entity_encode($thisurl).'&'.
+                              &Apache::lonhtmlcommon::entity_encode($thistitle).
+                              ':'.$res->randompick().
+                              ':'.$res->randomout().
+                              ':'.$res->encrypted().
+                              ':'.$res->randomorder().
+                              ':'.$res->is_page();
+                 }
+             }
+         }
+         $path =~ s/^\&//;
+         my $maptitle = $mapresobj->title();
+         if ($mapurl eq 'default') {
+             $maptitle = 'Main Content';
+         }
+         $path .= (($path ne '')? '&' : '').
+                  &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
+                  &Apache::lonhtmlcommon::entity_encode($maptitle).
+                  ':'.$mapresobj->randompick().
+                  ':'.$mapresobj->randomout().
+                  ':'.$mapresobj->encrypted().
+                  ':'.$mapresobj->randomorder().
+                  ':'.$mapresobj->is_page();
+     } else {
+         my $maptitle = &Apache::lonnet::gettitle($mapurl);
+         my $ispage = (($type eq 'page')? 1 : '');
+         if ($mapurl eq 'default') {
+             $maptitle = 'Main Content';
+         }
+         $path = &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
+                 &Apache::lonhtmlcommon::entity_encode($maptitle).':::::'.$ispage;
+     }
+     unless ($mapurl eq 'default') {
+         $path = 'default&'.
+                 &Apache::lonhtmlcommon::entity_encode('Main Content').
+                 ':::::&'.$path;
+     }
+     return $path;
+ }
+ sub captcha_display {
+     my ($context,$lonhost) = @_;
+     my ($output,$error);
+     my ($captcha,$pubkey,$privkey) = &get_captcha_config($context,$lonhost);
+     if ($captcha eq 'original') {
+         $output = &create_captcha();
+         unless ($output) {
+             $error = 'captcha';
+         }
+     } elsif ($captcha eq 'recaptcha') {
+         $output = &create_recaptcha($pubkey);
+         unless ($output) {
+             $error = 'recaptcha';
+         }
+     }
+     return ($output,$error);
+ }
+ sub captcha_response {
+     my ($context,$lonhost) = @_;
+     my ($captcha_chk,$captcha_error);
+     my ($captcha,$pubkey,$privkey) = &get_captcha_config($context,$lonhost);
+     if ($captcha eq 'original') {
+         ($captcha_chk,$captcha_error) = &check_captcha();
+     } elsif ($captcha eq 'recaptcha') {
+         $captcha_chk = &check_recaptcha($privkey);
+     } else {
+         $captcha_chk = 1;
+     }
+     return ($captcha_chk,$captcha_error);
+ }
+ sub get_captcha_config {
+     my ($context,$lonhost) = @_;
+     my ($captcha,$pubkey,$privkey,$hashtocheck);
+     my $hostname = &Apache::lonnet::hostname($lonhost);
+     my $serverhomeID = &Apache::lonnet::get_server_homeID($hostname);
+     my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
+     if ($context eq 'usercreation') {
+         my %domconfig = &Apache::lonnet::get_dom('configuration',[$context],$serverhomedom);
+         if (ref($domconfig{$context}) eq 'HASH') {
+             $hashtocheck = $domconfig{$context}{'cancreate'};
+             if (ref($hashtocheck) eq 'HASH') {
+                 if ($hashtocheck->{'captcha'} eq 'recaptcha') {
+                     if (ref($hashtocheck->{'recaptchakeys'}) eq 'HASH') {
+                         $pubkey = $hashtocheck->{'recaptchakeys'}{'public'};
+                         $privkey = $hashtocheck->{'recaptchakeys'}{'private'};
+                     }
+                     if ($privkey && $pubkey) {
+                         $captcha = 'recaptcha';
+                     } else {
+                         $captcha = 'original';
+                     }
+                 } elsif ($hashtocheck->{'captcha'} ne 'notused') {
+                     $captcha = 'original';
+                 }
+             }
+         } else {
+             $captcha = 'captcha';
+         }
+     } elsif ($context eq 'login') {
+         my %domconfhash = &Apache::loncommon::get_domainconf($serverhomedom);
+         if ($domconfhash{$serverhomedom.'.login.captcha'} eq 'recaptcha') {
+             $pubkey = $domconfhash{$serverhomedom.'.login.recaptchakeys_public'};
+             $privkey = $domconfhash{$serverhomedom.'.login.recaptchakeys_private'};
+             if ($privkey && $pubkey) {
+                 $captcha = 'recaptcha';
+             } else {
+                 $captcha = 'original';
+             }
+         } elsif ($domconfhash{$serverhomedom.'.login.captcha'} eq 'original') {
+             $captcha = 'original';
+         }
+     }
+     return ($captcha,$pubkey,$privkey);
+ }
+ sub create_captcha {
+     my %captcha_params = &captcha_settings();
+     my ($output,$maxtries,$tries) = ('',10,0);
+     while ($tries < $maxtries) {
+         $tries ++;
+         my $captcha = Authen::Captcha->new (
+                                            output_folder => $captcha_params{'output_dir'},
+                                            data_folder   => $captcha_params{'db_dir'},
+                                           );
+         my $md5sum = $captcha->generate_code($captcha_params{'numchars'});
+         if (-e $Apache::lonnet::perlvar{'lonCaptchaDir'}.'/'.$md5sum.'.png') {
+             $output = '<input type="hidden" name="crypt" value="'.$md5sum.'" />'."\n".
+                       &mt('Type in the letters/numbers shown below').'&nbsp;'.
+                      '<input type="text" size="5" name="code" value="" /><br />'.
+                      '<img src="'.$captcha_params{'www_output_dir'}.'/'.$md5sum.'.png" />';
+             last;
+         }
+     }
+     return $output;
+ }
+ sub captcha_settings {
+     my %captcha_params = (
+                            output_dir     => $Apache::lonnet::perlvar{'lonCaptchaDir'},
+                            www_output_dir => "/captchaspool",
+                            db_dir         => $Apache::lonnet::perlvar{'lonCaptchaDb'},
+                            numchars       => '5',
+                          );
+     return %captcha_params;
+ }
+ sub check_captcha {
+     my ($captcha_chk,$captcha_error);
+     my $code = $env{'form.code'};
+     my $md5sum = $env{'form.crypt'};
+     my %captcha_params = &captcha_settings();
+     my $captcha = Authen::Captcha->new(
+                       output_folder => $captcha_params{'output_dir'},
+                       data_folder   => $captcha_params{'db_dir'},
+                   );
+     $captcha_chk = $captcha->check_code($code,$md5sum);
+     my %captcha_hash = (
+      => 'Code not checked (file error)',
+                        -1      => 'Failed: code expired',
+                        -2      => 'Failed: invalid code (not in database)',
+                        -3      => 'Failed: invalid code (code does not match crypt)',
+     );
+     if ($captcha_chk != 1) {
+         $captcha_error = $captcha_hash{$captcha_chk}
+     }
+     return ($captcha_chk,$captcha_error);
+ }
+ sub create_recaptcha {
+     my ($pubkey) = @_;
+     my $captcha = Captcha::reCAPTCHA->new;
+     return $captcha->get_options_setter({theme => 'white'})."\n".
+            $captcha->get_html($pubkey).
+            &mt('If either word is hard to read, [_1] will replace them.',
+                '<img src="/res/adm/pages/refresh.gif" alt="reCAPTCHA refresh" />').
+            '<br /><br />';
+ }
+ sub check_recaptcha {
+     my ($privkey) = @_;
+     my $captcha_chk;
+     my $captcha = Captcha::reCAPTCHA->new;
+     my $captcha_result =
+         $captcha->check_answer(
+                                 $privkey,
+                                 $ENV{'REMOTE_ADDR'},
+                                 $env{'form.recaptcha_challenge_field'},
+                                 $env{'form.recaptcha_response_field'},
+                               );
+     if ($captcha_result->{is_valid}) {
+         $captcha_chk = 1;
+     }
+     return $captcha_chk;
+ }
  =pod

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.152
changed lines
	Added in v.1.1135