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Diff for /loncom/interface/loncommon.pm between versions 1.52 and 1.81

version 1.52, 2002/08/08 19:27:35 version 1.81, 2003/02/13 23:02:42
Line 27 Line 27
 #  #
 # YEAR=2001  # YEAR=2001
 # 2/13-12/7 Guy Albertelli  # 2/13-12/7 Guy Albertelli
 # 12/11,12/12,12/17 Scott Harrison  
 # 12/21 Gerd Kortemeyer  # 12/21 Gerd Kortemeyer
 # 12/21 Scott Harrison  
 # 12/25,12/28 Gerd Kortemeyer  # 12/25,12/28 Gerd Kortemeyer
 # YEAR=2002  # YEAR=2002
 # 1/4 Gerd Kortemeyer  # 1/4 Gerd Kortemeyer
Line 98  my %cprtag; Line 96  my %cprtag;
 my %fe; my %fd;  my %fe; my %fd;
 my %category_extensions;  my %category_extensions;
   
   # ---------------------------------------------- Designs
   
   my %designhash;
   
 # ---------------------------------------------- Thesaurus variables  # ---------------------------------------------- Thesaurus variables
   
 =pod  =pod
Line 166  BEGIN { Line 168  BEGIN {
     }      }
  }   }
     }      }
   
   # -------------------------------------------------------------- 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.'/'.$filename);
    if ($fh) {
       while (<$fh>) {
    next if /^\#/;
    chomp;
    my ($key,$val)=(split(/\=/,$_));
    if ($val) { $designhash{$domain.'.'.$key}=$val; }
       }
    }
       }
   
       }
       closedir(DIR);
   
   
 # ------------------------------------------------------------- file categories  # ------------------------------------------------------------- file categories
     {      {
  my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.   my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
Line 283  sub browser_and_searcher_javascript { Line 309  sub browser_and_searcher_javascript {
 END  END
 }  }
   
   sub studentbrowser_javascript {
      unless ($ENV{'request.course.id'}) { return ''; }  
      unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
           return '';
      }
      return (<<'ENDSTDBRW');
   <script type="text/javascript" language="Javascript" >
       var stdeditbrowser;
       function openstdbrowser(formname,uname,udom) {
           var url = '/adm/pickstudent?';
           var filter;
           eval('filter=document.'+formname+'.'+uname+'.value;');
           if (filter != null) {
              if (filter != '') {
                  url += 'filter='+filter+'&';
      }
           }
           url += 'form=' + formname + '&unameelement='+uname+
                                       '&udomelement='+udom;
           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 selectstudent_link {
       my ($form,$unameele,$udomele)=@_;
      unless ($ENV{'request.course.id'}) { return ''; }  
      unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
           return '';
      }
       return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
           '","'.$udomele.'");'."'>Select</a>";
   }
   
 ###############################################################  ###############################################################
   
Line 455  sub help_open_topic { Line 518  sub help_open_topic {
     my ($topic, $text, $stayOnPage, $width, $height) = @_;      my ($topic, $text, $stayOnPage, $width, $height) = @_;
     $text = "" if (not defined $text);      $text = "" if (not defined $text);
     $stayOnPage = 0 if (not defined $stayOnPage);      $stayOnPage = 0 if (not defined $stayOnPage);
       if ($ENV{'browser.interface'} eq 'textual') {
    $stayOnPage=1;
       }
     $width = 350 if (not defined $width);      $width = 350 if (not defined $width);
     $height = 400 if (not defined $height);      $height = 400 if (not defined $height);
     my $filename = $topic;      my $filename = $topic;
Line 465  sub help_open_topic { Line 531  sub help_open_topic {
   
     if (!$stayOnPage)      if (!$stayOnPage)
     {      {
  $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height'))";   $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
     }      }
     else      else
     {      {
Line 475  sub help_open_topic { Line 541  sub help_open_topic {
     # Add the text      # Add the text
     if ($text ne "")      if ($text ne "")
     {      {
  $template .= "<a href=\"$link\">$text</a> ";   $template .= 
     "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
     "<td bgcolor='#5555FF'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
     }      }
   
     # Add the graphic      # Add the graphic
     $template .= <<"ENDTEMPLATE";      $template .= <<"ENDTEMPLATE";
 <a href="$link"><image src="/adm/help/gif/smallHelp.gif" border="0" alt="(Help: $topic)"></a>   <a href="$link"><image src="/adm/help/gif/smallHelp.gif" border="0" alt="(Help: $topic)" /></a>
 ENDTEMPLATE  ENDTEMPLATE
       if ($text ne '') { $template.='</td></tr></table>' };
     return $template;      return $template;
   
 }  }
Line 646  See loncreateuser.pm for invocation and Line 714  See loncreateuser.pm for invocation and
 sub authform_header{    sub authform_header{  
     my %in = (      my %in = (
         formname => 'cu',          formname => 'cu',
         kerb_def_dom => 'MSU.EDU',          kerb_def_dom => '',
         @_,          @_,
     );      );
     $in{'formname'} = 'document.' . $in{'formname'};      $in{'formname'} = 'document.' . $in{'formname'};
     my $result='';      my $result='';
   
   #---------------------------------------------- Code for upper case translation
       my $Javascript_toUpperCase;
       unless ($in{kerb_def_dom}) {
           $Javascript_toUpperCase =<<"END";
           switch (choice) {
              case 'krb': currentform.elements[choicearg].value =
                  currentform.elements[choicearg].value.toUpperCase();
                  break;
              default:
           }
   END
       } else {
           $Javascript_toUpperCase = "";
       }
   
     $result.=<<"END";      $result.=<<"END";
 var current = new Object();  var current = new Object();
 current.radiovalue = 'nochange';  current.radiovalue = 'nochange';
Line 684  function changed_radio(choice,currentfor Line 768  function changed_radio(choice,currentfor
 function changed_text(choice,currentform) {  function changed_text(choice,currentform) {
     var choicearg = choice + 'arg';      var choicearg = choice + 'arg';
     if (currentform.elements[choicearg].value !='') {      if (currentform.elements[choicearg].value !='') {
         switch (choice) {          $Javascript_toUpperCase
             case 'krb': currentform.elements[choicearg].value =  
                 currentform.elements[choicearg].value.toUpperCase();  
                 break;  
             default:  
         }  
         // clear old field          // clear old field
         if ((current.argfield != choicearg) && (current.argfield != null)) {          if ((current.argfield != choicearg) && (current.argfield != null)) {
             currentform.elements[current.argfield].value = '';              currentform.elements[current.argfield].value = '';
Line 735  sub authform_nochange{ Line 814  sub authform_nochange{
     my $result='';      my $result='';
     $result.=<<"END";      $result.=<<"END";
 <input type="radio" name="login" value="nochange" checked="checked"  <input type="radio" name="login" value="nochange" checked="checked"
        onclick="javascript:changed_radio('nochange',$in{'formname'});">         onclick="javascript:changed_radio('nochange',$in{'formname'});" />
 Do not change login data  Do not change login data
 END  END
     return $result;      return $result;
Line 745  sub authform_kerberos{ Line 824  sub authform_kerberos{
     my %in = (      my %in = (
               formname => 'document.cu',                formname => 'document.cu',
               kerb_def_dom => 'MSU.EDU',                kerb_def_dom => 'MSU.EDU',
                 kerb_def_auth => 'krb4',
               @_,                @_,
               );                );
     my $result='';      my $result='';
       my $check4;
       my $check5;
       if ($in{'kerb_def_auth'} eq 'krb5') {
          $check5 = " checked=\"on\"";
       } else {
          $check4 = " checked=\"on\"";
       }
     $result.=<<"END";      $result.=<<"END";
 <input type="radio" name="login" value="krb"   <input type="radio" name="login" value="krb" 
        onclick="javascript:changed_radio('krb',$in{'formname'});"         onclick="javascript:changed_radio('krb',$in{'formname'});"
        onchange="javascript:changed_radio('krb',$in{'formname'});">         onchange="javascript:changed_radio('krb',$in{'formname'});" />
 Kerberos authenticated with domain  Kerberos authenticated with domain
 <input type="text" size="10" name="krbarg" value=""  <input type="text" size="10" name="krbarg" value="$in{'kerb_def_dom'}"
        onchange="javascript:changed_text('krb',$in{'formname'});">         onchange="javascript:changed_text('krb',$in{'formname'});" />
   <input type="radio" name="krbver" value="4" $check4 />Version 4
   <input type="radio" name="krbver" value="5" $check5 />Version 5
 END  END
     return $result;      return $result;
 }  }
Line 769  sub authform_internal{ Line 858  sub authform_internal{
     $result.=<<"END";      $result.=<<"END";
 <input type="radio" name="login" value="int"  <input type="radio" name="login" value="int"
        onchange="javascript:changed_radio('int',$args{'formname'});"         onchange="javascript:changed_radio('int',$args{'formname'});"
        onclick="javascript:changed_radio('int',$args{'formname'});">         onclick="javascript:changed_radio('int',$args{'formname'});" />
 Internally authenticated (with initial password   Internally authenticated (with initial password 
 <input type="text" size="10" name="intarg" value=""  <input type="text" size="10" name="intarg" value=""
        onchange="javascript:changed_text('int',$args{'formname'});">         onchange="javascript:changed_text('int',$args{'formname'});" />)
 END  END
     return $result;      return $result;
 }  }
Line 787  sub authform_local{ Line 876  sub authform_local{
     $result.=<<"END";      $result.=<<"END";
 <input type="radio" name="login" value="loc"  <input type="radio" name="login" value="loc"
        onchange="javascript:changed_radio('loc',$in{'formname'});"         onchange="javascript:changed_radio('loc',$in{'formname'});"
        onclick="javascript:changed_radio('loc',$in{'formname'});">          onclick="javascript:changed_radio('loc',$in{'formname'});" />
 Local Authentication with argument  Local Authentication with argument
 <input type="text" size="10" name="locarg" value=""  <input type="text" size="10" name="locarg" value=""
        onchange="javascript:changed_text('loc',$in{'formname'});">         onchange="javascript:changed_text('loc',$in{'formname'});" />
 END  END
     return $result;      return $result;
 }  }
Line 805  sub authform_filesystem{ Line 894  sub authform_filesystem{
     $result.=<<"END";      $result.=<<"END";
 <input type="radio" name="login" value="fsys"   <input type="radio" name="login" value="fsys" 
        onchange="javascript:changed_radio('fsys',$in{'formname'});"         onchange="javascript:changed_radio('fsys',$in{'formname'});"
        onclick="javascript:changed_radio('fsys',$in{'formname'});">          onclick="javascript:changed_radio('fsys',$in{'formname'});" />
 Filesystem authenticated (with initial password   Filesystem authenticated (with initial password 
 <input type="text" size="10" name="fsysarg" value=""  <input type="text" size="10" name="fsysarg" value=""
        onchange="javascript:changed_text('fsys',$in{'formname'});">         onchange="javascript:changed_text('fsys',$in{'formname'});">)
 END  END
     return $result;      return $result;
 }  }
Line 818  END Line 907  END
 ###############################################################  ###############################################################
   
 ###############################################################  ###############################################################
   ##    Get Authentication Defaults for Domain                 ##
   ###############################################################
   ##
   ## Returns default authentication type and an associated argument
   ## as listed in file domain.tab
   ##
   #-------------------------------------------
   
   =pod
   
   =item get_auth_defaults
   
   get_auth_defaults($target_domain) returns the default authentication
   type and an associated argument (initial password or a kerberos domain).
   These values are stored in lonTabs/domain.tab
   
   ($def_auth, $def_arg) = &get_auth_defaults($target_domain);
   
   If target_domain is not found in domain.tab, returns nothing ('').
   
   =over 4
   
   =item get_auth_defaults
   
   =back
   
   =cut
   
   #-------------------------------------------
   sub get_auth_defaults {
       my $domain=shift;
       return ($Apache::lonnet::domain_auth_def{$domain},$Apache::lonnet::domain_auth_arg_def{$domain});
   }
   ###############################################################
   ##   End Get Authentication Defaults for Domain              ##
   ###############################################################
   
   ###############################################################
   ##    Get Kerberos Defaults for Domain                 ##
   ###############################################################
   ##
   ## Returns default kerberos version and an associated argument
   ## as listed in file domain.tab. If not listed, provides
   ## appropriate default domain and kerberos version.
   ##
   #-------------------------------------------
   
   =pod
   
   =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 4 and the domain of the server.
   
   ($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain);
   
   =over 4
   
   =item get_kerberos_defaults
   
   =back
   
   =cut
   
   #-------------------------------------------
   sub get_kerberos_defaults {
       my $domain=shift;
       my ($krbdef,$krbdefdom) =
           &Apache::loncommon::get_auth_defaults($domain);
       unless ($krbdef =~/^krb/ && $krbdefdom) {
           $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
           my $krbdefdom=$1;
           $krbdefdom=~tr/a-z/A-Z/;
           $krbdef = "krb4";
       }
       return ($krbdef,$krbdefdom);
   }
   ###############################################################
   ##   End Get Kerberos Defaults for Domain              ##
   ###############################################################
   
   ###############################################################
 ##                Thesaurus Functions                        ##  ##                Thesaurus Functions                        ##
 ###############################################################  ###############################################################
   
Line 844  sub initialize_keywords { Line 1016  sub initialize_keywords {
     #   Set up the hash as a database      #   Set up the hash as a database
     my %thesaurus_db;      my %thesaurus_db;
     if (! tie(%thesaurus_db,'GDBM_File',      if (! tie(%thesaurus_db,'GDBM_File',
               $thesaurus_db_file,&GDBM_READER,0640)){                $thesaurus_db_file,&GDBM_READER(),0640)){
         &Apache::lonnet::logthis("Could not tie \%thesaurus_db to ".          &Apache::lonnet::logthis("Could not tie \%thesaurus_db to ".
                                  $thesaurus_db_file);                                   $thesaurus_db_file);
         return 0;          return 0;
Line 885  sub keyword { Line 1057  sub keyword {
     return exists($Keywords{$word});      return exists($Keywords{$word});
 }  }
   
 ###################################################  
 #         Old code, to be removed soon            #  
 ###################################################  
 # -------------------------------------------------------- Return related words  
 #sub related {  
 #    my $newword=shift;  
 #    $newword=~s/\W//g;  
 #    $newword=~tr/A-Z/a-z/;  
 #    my $tindex=$theindex{$newword};  
 #    if ($tindex) {  
 #        my %found=();  
 #        foreach (split(/\,/,$therelated[$tindex])) {  
 ## - Related word found  
 #            my ($ridx,$rcount)=split(/\:/,$_);  
 ## - Direct relation index  
 #            my $directrel=$rcount/$thecount[$tindex];  
 #            if ($directrel>$thethreshold) {  
 #               foreach (split(/\,/,$therelated[$ridx])) {  
 #                  my ($rridx,$rrcount)=split(/\:/,$_);  
 #                  if ($rridx==$tindex) {  
 ## - Determine reverse relation index  
 #                     my $revrel=$rrcount/$thecount[$ridx];  
 ## - Calculate full index  
 #                     $found{$ridx}=$directrel*$revrel;  
 #                     if ($found{$ridx}>$thethreshold) {  
 #                        foreach (split(/\,/,$therelated[$ridx])) {  
 #                            my ($rrridx,$rrrcount)=split(/\:/,$_);  
 #                            unless ($found{$rrridx}) {  
 #                               my $revrevrel=$rrrcount/$thecount[$ridx];  
 #                               if (  
 #                          $directrel*$revrel*$revrevrel>$thethreshold  
 #                               ) {  
 #                                  $found{$rrridx}=  
 #                                       $directrel*$revrel*$revrevrel;  
 #                               }  
 #                            }  
 #                        }  
 #                     }  
 #                  }  
 #               }  
 #            }  
 #        }  
 #    }  
 #    return ();  
 #}  
   
 ###############################################################  ###############################################################
   
 =pod   =pod 
Line 947  Uses global $thesaurus_db_file. Line 1073  Uses global $thesaurus_db_file.
 =cut  =cut
   
 ###############################################################  ###############################################################
   
 sub get_related_words {  sub get_related_words {
     my $keyword = shift;      my $keyword = shift;
     my %thesaurus_db;      my %thesaurus_db;
Line 957  sub get_related_words { Line 1082  sub get_related_words {
         return ();          return ();
     }      }
     if (! tie(%thesaurus_db,'GDBM_File',      if (! tie(%thesaurus_db,'GDBM_File',
               $thesaurus_db_file,&GDBM_READER,0640)){                $thesaurus_db_file,&GDBM_READER(),0640)){
         return ();          return ();
     }       } 
     my @Words=();      my @Words=();
Line 977  sub get_related_words { Line 1102  sub get_related_words {
 ##              End Thesaurus Functions                      ##  ##              End Thesaurus Functions                      ##
 ###############################################################  ###############################################################
   
   # -------------------------------------------------------------- Plaintext name
   =pod
   
   =item plainname($uname,$udom)
   
   Gets a users name and returns it as a string in
   "first middle last generation"
   form
   
   =cut
   
   ###############################################################
   sub plainname {
       my ($uname,$udom)=@_;
       my %names=&Apache::lonnet::get('environment',
                       ['firstname','middlename','lastname','generation'],
    $udom,$uname);
       my $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
    $names{'lastname'}.' '.$names{'generation'};
       $name=~s/\s+$//;
       $name=~s/\s+/ /g;
       return $name;
   }
   
   # -------------------------------------------------------------------- Nickname
   =pod
   
   =item nickname($uname,$udom)
   
   Gets a users name and returns it as a string as
   
   "&quot;nickname&quot;"
   
   if the user has a nickname or
   
   "first middle last generation"
   
   if the user does not
   
   =cut
   
   sub nickname {
       my ($uname,$udom)=@_;
       my %names=&Apache::lonnet::get('environment',
     ['nickname','firstname','middlename','lastname','generation'],$udom,$uname);
       my $name=$names{'nickname'};
       if ($name) {
          $name='&quot;'.$name.'&quot;'; 
       } else {
          $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
        $names{'lastname'}.' '.$names{'generation'};
          $name=~s/\s+$//;
          $name=~s/\s+/ /g;
       }
       return $name;
   }
   
   
   # ------------------------------------------------------------------ Screenname
   
   =pod
   
   =item screenname($uname,$udom)
   
   Gets a users screenname and returns it as a string
   
   =cut
   
   sub screenname {
       my ($uname,$udom)=@_;
       my %names=
    &Apache::lonnet::get('environment',['screenname'],$udom,$uname);
       return $names{'screenname'};
   }
   
   # ------------------------------------------------------------- Message Wrapper
   
   sub messagewrapper {
       my ($link,$un,$do)=@_;
       return 
   "<a href='/adm/email?compose=individual&recname=$un&recdom=$do'>$link</a>";
   }
   # --------------------------------------------------------------- Notes Wrapper
   
   sub noteswrapper {
       my ($link,$un,$do)=@_;
       return 
   "<a href='/adm/email?recordftf=retrieve&recname=$un&recdom=$do'>$link</a>";
   }
   # ------------------------------------------------------------- Aboutme Wrapper
   
   sub aboutmewrapper {
       my ($link,$username,$domain)=@_;
       return "<a href='/adm/$domain/$username/aboutme'>$link</a>";
   }
   
   # ------------------------------------------------------------ Syllabus Wrapper
   
   
   sub syllabuswrapper {
       my ($link,$un,$do,$tf)=@_;
       if ($tf) { $link='<font color="'.$tf.'">'.$link.'</font>'; }
       return "<a href='/public/$do/$un/syllabus'>$link</a>";
   }
   
 # ---------------------------------------------------------------- Language IDs  # ---------------------------------------------------------------- Language IDs
 sub languageids {  sub languageids {
     return sort(keys(%language));      return sort(keys(%language));
Line 1106  sub get_previous_attempt { Line 1336  sub get_previous_attempt {
 }  }
   
 sub get_student_view {  sub get_student_view {
   my ($symb,$username,$domain,$courseid) = @_;    my ($symb,$username,$domain,$courseid,$target) = @_;
   my ($map,$id,$feedurl) = split(/___/,$symb);    my ($map,$id,$feedurl) = split(/___/,$symb);
   my (%old,%moreenv);    my (%old,%moreenv);
   my @elements=('symb','courseid','domain','username');    my @elements=('symb','courseid','domain','username');
Line 1114  sub get_student_view { Line 1344  sub get_student_view {
     $old{$element}=$ENV{'form.grade_'.$element};      $old{$element}=$ENV{'form.grade_'.$element};
     $moreenv{'form.grade_'.$element}=eval '$'.$element #'      $moreenv{'form.grade_'.$element}=eval '$'.$element #'
   }    }
     if ($target eq 'tex') {$moreenv{'form.grade_target'} = 'tex';}
   &Apache::lonnet::appenv(%moreenv);    &Apache::lonnet::appenv(%moreenv);
   my $userview=&Apache::lonnet::ssi('/res/'.$feedurl);    my $userview=&Apache::lonnet::ssi('/res/'.$feedurl);
   &Apache::lonnet::delenv('form.grade_');    &Apache::lonnet::delenv('form.grade_');
Line 1173  sub maketime { Line 1404  sub maketime {
 }  }
   
   
   #########################################
   #
   # Retro-fixing of un-backward-compatible time format
   
   sub unsqltime {
       my $timestamp=shift;
       if ($timestamp=~/^(\d+)\-(\d+)\-(\d+)\s+(\d+)\:(\d+)\:(\d+)$/) {
          $timestamp=&maketime(
      'year'=>$1,'month'=>$2,'day'=>$3,
              'hours'=>$4,'minutes'=>$5,'seconds'=>$6);
       }
       return $timestamp;
   }
   
   #########################################
   
 sub findallcourses {  sub findallcourses {
     my %courses=();      my %courses=();
     my $now=time;      my $now=time;
Line 1193  sub findallcourses { Line 1440  sub findallcourses {
 }  }
   
 ###############################################  ###############################################
   ###############################################
   
   =pod
   
   =item &determinedomain()
   
   Inputs: $domain (usually will be undef)
   
   Returns: Determines which domain should be used for designs
   
   =cut
   
   ###############################################
   sub determinedomain {
       my $domain=shift;
      if (! $domain) {
           # Determine domain if we have not been given one
           $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
           if ($ENV{'user.domain'}) { $domain=$ENV{'user.domain'}; }
           if ($ENV{'request.role.domain'}) { 
               $domain=$ENV{'request.role.domain'}; 
           }
       }
       return $domain;
   }
   ###############################################
   =pod
   
   =item &domainlogo()
   
   Inputs: $domain (usually will be undef)
   
   Returns: A link to a domain logo, if the domain logo exists.
   If the domain logo does not exist, a description of the domain.
   
   =cut
   ###############################################
   sub domainlogo {
       my $domain = &determinedomain(shift);    
        # See if there is a logo
       if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') {
           return '<img src="http://'.$ENV{'HTTP_HOST'}.':8080/adm/lonDomLogos/'.
                  $domain.'.gif" />';
       } elsif(exists($Apache::lonnet::domaindescription{$domain})) {
           return $Apache::lonnet::domaindescription{$domain};
       } else {
           return '';
       }
   }
   ##############################################
   
   =pod
   
   =item &designparm()
   
   Inputs: $which parameter; $domain (usually will be undef)
   
   Returns: value of designparamter $which
   
   =cut
   ##############################################
   sub designparm {
       my ($which,$domain)=@_;
       $domain=&determinedomain($domain);
       if ($designhash{$domain.'.'.$which}) {
    return $designhash{$domain.'.'.$which};
       } else {
           return $designhash{'default.'.$which};
       }
   }
   
   ###############################################
   ###############################################
   
   =pod
   
   =item &bodytag()
   
   Returns a uniform header for LON-CAPA web pages.
   
   Inputs: 
   
    $title, A title to be displayed on the page.
    $function, the current role (can be undef).
    $addentries, extra parameters for the <body> tag.
    $bodyonly, if defined, only return the <body> tag.
    $domain, if defined, force a given domain.
   
   Returns: A uniform header for LON-CAPA web pages.  
   If $bodyonly is nonzero, a string containing a <body> tag will be returned.
   If $bodyonly is undef or zero, an html string containing a <body> tag and 
   other decorations will be returned.
   
   =cut
   
   ###############################################
   
   
   ###############################################
   sub bodytag {
       my ($title,$function,$addentries,$bodyonly,$domain)=@_;
       unless ($function) {
    $function='student';
           if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
       $function='coordinator';
           }
    if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
               $function='admin';
           }
           if (($ENV{'request.role'}=~/^(au|ca)/) ||
               ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
               $function='author';
           }
       }
       my $img=&designparm($function.'.img',$domain);
       my $pgbg=&designparm($function.'.pgbg',$domain);
       my $tabbg=&designparm($function.'.tabbg',$domain);
       my $font=&designparm($function.'.font',$domain);
       my $link=&designparm($function.'.link',$domain);
       my $alink=&designparm($function.'.alink',$domain);
       my $vlink=&designparm($function.'.vlink',$domain);
       my $sidebg=&designparm($function.'.sidebg',$domain);
   
    # role and realm
       my ($role,$realm)
          =&Apache::lonnet::plaintext((split(/\./,$ENV{'request.role'}))[0]);
   # realm
       if ($ENV{'request.course.id'}) {
    $realm=
            $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
       }
       unless ($realm) { $realm='&nbsp;'; }
   # Set messages
       my $messages=&domainlogo($domain);
   # Output
       my $bodytag = <<END;
   <body bgcolor="$pgbg" text="$font" alink="$alink" vlink="$vlink" link="$link"
   $addentries>
   END
       if ($bodyonly) {
           return $bodytag;
       } elsif ($ENV{'browser.interface'} eq 'textual') {
           return $bodytag.'<h1>LON-CAPA: '.$title.
            '</h1><a href="/adm/menu">Main Menu</a><hr />';
       } else {
           return(<<ENDBODY);
   $bodytag
   <table width="100%" cellspacing="0" border="0" cellpadding="0">
   <tr><td bgcolor="$font">
   <img src="http://$ENV{'HTTP_HOST'}:8080/$img" /></td>
   <td bgcolor="$font"><font color='$sidebg'>$messages</font></td>
   </tr>
   <tr>
   <td rowspan="3" bgcolor="$tabbg">
   &nbsp;<font size="5"><b>$title</b></font>
   <td bgcolor="$tabbg"  align="right">
   <font size="2">
       $ENV{'environment.firstname'}
       $ENV{'environment.middlename'}
       $ENV{'environment.lastname'}
       $ENV{'environment.generation'}
       </font>&nbsp;
   </td>
   </tr>
   <tr><td bgcolor="$tabbg" align="right">
   <font size="2">$role</font>&nbsp;
   </td></tr>
   <tr>
   <td bgcolor="$tabbg" align="right"><font size="2">$realm</font>&nbsp;</td></tr>
   </table><br>
   ENDBODY
       }
   }
   ###############################################
   
 sub get_unprocessed_cgi {  sub get_unprocessed_cgi {
   my ($query,$possible_names)= @_;    my ($query,$possible_names)= @_;
Line 1277  sub upfile_store { Line 1698  sub upfile_store {
     return $datatoken;      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,  Load uploaded file from tmp, $r should be the HTTP Request object,
Line 1298  sub load_tmp_file { Line 1721  sub load_tmp_file {
     $ENV{'form.upfile'}=join('',@studentdata);      $ENV{'form.upfile'}=join('',@studentdata);
 }  }
   
   =pod
   
 =item upfile_record_sep()  =item upfile_record_sep()
   
 Separate uploaded file into records  Separate uploaded file into records
Line 1313  sub upfile_record_sep { Line 1738  sub upfile_record_sep {
     }      }
 }  }
   
   =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'}
Line 1363  sub record_sep { Line 1790  sub record_sep {
     return %components;      return %components;
 }  }
   
   =pod
   
 =item upfile_select_html()  =item upfile_select_html()
   
 return HTML code to select file and specify its type  return HTML code to select file and specify its type
Line 1371  return HTML code to select file and spec Line 1800  return HTML code to select file and spec
   
 sub upfile_select_html {  sub upfile_select_html {
     return (<<'ENDUPFORM');      return (<<'ENDUPFORM');
 <input type="file" name="upfile" size="50">  <input type="file" name="upfile" size="50" />
 <br />Type: <select name="upfiletype">  <br />Type: <select name="upfiletype">
 <option value="csv">CSV (comma separated values, spreadsheet)</option>  <option value="csv">CSV (comma separated values, spreadsheet)</option>
 <option value="space">Space separated</option>  <option value="space">Space separated</option>
Line 1381  sub upfile_select_html { Line 1810  sub upfile_select_html {
 ENDUPFORM  ENDUPFORM
 }  }
   
   =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  Prints a table of sample values from each column uploaded $r is an
Line 1411  sub csv_print_samples { Line 1842  sub csv_print_samples {
     $r->print('</tr></table><br />'."\n");      $r->print('</tr></table><br />'."\n");
 }  }
   
   =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.  Prints a table to create associations between values and table columns.
Line 1443  sub csv_print_select_table { Line 1876  sub csv_print_select_table {
     return $i;      return $i;
 }  }
   
   =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.  Prints a table of sample values from the upload and can make associate samples to internal names.
Line 1568  will result in $ENV{'form.uname'} and $E Line 2003  will result in $ENV{'form.uname'} and $E
   
 returns cache-controlling header code  returns cache-controlling header code
   
 =item nocache()   =item no_cache($r) 
   
 specifies header code to not have cache  specifies header code to not have cache
   
Removed from v.1.52  
changed lines
  Added in v.1.81

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