--- loncom/interface/londocs.pm	2002/09/04 20:33:38	1.19
+++ loncom/interface/londocs.pm	2002/10/20 18:42:53	1.34
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Documents
 #
-# $Id: londocs.pm,v 1.19 2002/09/04 20:33:38 www Exp $
+# $Id: londocs.pm,v 1.34 2002/10/20 18:42:53 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -29,15 +29,21 @@
 package Apache::londocs;
 
 use strict;
-use Apache::Constants qw(:common);
+use Apache::Constants qw(:common :http);
 use Apache::lonnet;
 use Apache::loncommon;
 use Apache::lonratedt;
 use Apache::lonratsrv;
 use Apache::lonxml;
+use GDBM_File;
 
 my $iconpath;
 
+my %hash;
+
+my $hashtied;
+my %alreadyseen=();
+
 # Mapread read maps into lonratedt::global arrays 
 # @order and @resources, determines status
 # sets @order - pointer to resources in right order
@@ -211,12 +217,99 @@ END
 		$foldertitle;
 	}
     if ($isfolder) { $url.='&foldername='.$foldertitle; }
-    $line.='<td bgcolor="#FFFFBB"><a href="'.$url.'"><img src="/adm/lonIcons/'.
+    $line.='<td bgcolor="#FFFFBB"><a href="'.$url.'" target="cat_'.$folder.
+'"><img src="/adm/lonIcons/'.
         $icon.'.gif" border="0"></a></td>'.
-        "<td bgcolor='#FFFFBB'><a href='$url'>$title</a></td></tr>";
+        "<td bgcolor='#FFFFBB'><a href='$url' target='cat_$folder'>$title</a></td></tr>";
     return $line;
 }
 
+# ---------------------------------------------------------------- tie the hash
+
+sub tiehash {
+    $hashtied=0;
+    if ($ENV{'request.course.fn'}) {
+        if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.".db",
+            &GDBM_READER(),0640)) {
+                $hashtied=1;
+        }
+    }    
+}
+
+sub untiehash {
+    if ($hashtied) { untie %hash; }
+    $hashtied=0;
+}
+
+# --------------------------------------------------------------- check on this
+
+sub checkonthis {
+    my ($r,$url,$level,$title)=@_;
+    $alreadyseen{$url}=1;
+    $r->rflush();
+    if ($url) {
+       $r->print('<br />');
+       for (my $i=0;$i<=$level*5;$i++) {
+           $r->print('&nbsp;');
+       }
+       $r->print('<a href="'.$url.'" target="cat">'.
+		 ($title?$title:$url).'</a> ');
+       if ($url=~/^\/res\//) {
+	  my $result=&Apache::lonnet::repcopy(
+                              &Apache::lonnet::filelocation('',$url));
+          if ($result==OK) {
+             $r->print('<font color="green">ok</font>');
+             $r->rflush();
+             &Apache::lonnet::countacc($url);
+             $url=~/\.(\w+)$/;
+             if (&Apache::loncommon::fileembstyle($1) eq 'ssi') {
+		 $r->print('<br />');
+                 $r->rflush();
+                 my $default='';
+                 if ($1=~/(problem|exam|quiz|assess|survey|form|library)/) {
+                    $default=&Apache::lonnet::getfile(
+                    '/home/httpd/html/res/adm/includes/default_homework.lcpm');
+                 }
+                 for (my $i=0;$i<=$level*5;$i++) {
+                     $r->print('&nbsp;');
+                 }
+                 $r->print('- Rendering: ');
+                 &Apache::lonxml::xmlparse($r,'web',
+                   &Apache::lonnet::getfile(
+                    &Apache::lonnet::filelocation('',$url)),$default);
+                 if (($Apache::lonxml::errorcount) ||
+                     ($Apache::lonxml::warningcount)) {
+		     if ($Apache::lonxml::errorcount) {
+                        $r->print('<font color="red"><b>'.
+			  $Apache::lonxml::errorcount.' error(s)</b></font> ');
+                     }
+		     if ($Apache::lonxml::warningcount) {
+                        $r->print('<font color="blue">'.
+			  $Apache::lonxml::warningcount.' warning(s)</font>');
+                     }
+                 } else {
+                     $r->print('<font color="green">ok</font>');
+                 }
+                 $r->rflush();
+             }
+	     my $dependencies=
+                &Apache::lonnet::metadata($url,'dependencies');
+             foreach (split(/\,/,$dependencies)) {
+		 if (($_=~/^\/res\//) && (!$alreadyseen{$_})) {
+                    &checkonthis($r,$_,$level+1);
+                 }
+             }
+          } elsif ($result==HTTP_SERVICE_UNAVAILABLE) {
+             $r->print('<font color="red"><b>connection down</b></font>');
+          } elsif ($result==HTTP_NOT_FOUND) {
+             $r->print('<font color="red"><b>not found</b></font>');
+          } else {
+             $r->print('<font color="red"><b>access denied</b></font>');
+          }
+      }
+   }
+}
+
 # ================================================================ Main Handler
 sub handler {
     my $r = shift;
@@ -224,6 +317,116 @@ sub handler {
     $r->send_http_header;
     return OK if $r->header_only;
 
+  
+  if ($ENV{'form.verify'}) {
+ 
+   my $loaderror=&Apache::lonnet::overloaderror($r);
+   if ($loaderror) { return $loaderror; }
+
+   $r->print('<html><head><title>Verify Content</title></head>'.
+              &Apache::loncommon::bodytag('Verify Course Documents'));
+   $hashtied=0;
+   undef %alreadyseen;
+   %alreadyseen=();
+   &tiehash();
+   foreach (keys %hash) {
+       if (($_=~/^src\_(.+)$/) && (!$alreadyseen{$hash{$_}})) {
+           &checkonthis($r,$hash{$_},0,$hash{'title_'.$1});
+       }
+   }
+   &untiehash();
+  } elsif ($ENV{'form.versions'}) {
+    $r->print('<html><head><title>Check Versions</title></head>'.
+              &Apache::loncommon::bodytag('Check Course Document Versions'));
+   $hashtied=0;
+   &tiehash();
+   my %changes=&Apache::lonnet::dump
+    ('versionupdate',$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
+                     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
+   my $firstkey=(keys %changes)[0];
+   unless ($firstkey=~/^error\:/) {
+       unless ($ENV{'form.timerange'}) {
+	   $ENV{'form.timerange'}=604800;
+       }
+       my $seltext='during the last '.$ENV{'form.timerange'}.' seconds';
+       my $startsel='';
+       my $monthsel='';
+       my $weeksel='';
+       my $daysel='';
+       if ($ENV{'form.timerange'}==-1) {
+	   $seltext='since start of course';
+           $startsel='selected';
+           $ENV{'form.timerange'}=time;
+       }
+       my $starttime=time-$ENV{'form.timerange'};
+       if ($ENV{'form.timerange'}==2592000) {
+           $seltext='during the last month ('.localtime($starttime).')';
+           $monthsel='selected';
+       } elsif ($ENV{'form.timerange'}==604800) {
+           $seltext='during the last week ('.localtime($starttime).')';
+           $weeksel='selected';
+       } elsif ($ENV{'form.timerange'}==86400) {
+           $seltext='since yesterday ('.localtime($starttime).')';
+           $daysel='selected';
+       }
+ 
+       $r->print(<<ENDHEADERS);
+<form action="/adm/coursedocs" method="post">
+<select name="timerange">
+<option value="-1" $startsel>Since Start of Course</option>
+<option value="2592000" $monthsel>Last Month</option>
+<option value="604800" $weeksel>Last Week</option>
+<option value="86400" $daysel>Since Yesterday</option>
+</select>
+<input type="submit" name="versions" value="Display" />
+</form>
+<h3>Content changed $seltext</h3>
+<table border="2">
+<tr>
+<th>File</th><th>Modification Date</th>
+<th>Version</th><th>Differences</th></tr>
+ENDHEADERS
+       foreach (keys %changes) {
+	  if ($changes{$_}>$starttime) {
+	     my ($root,$extension)=($_=~/^(.*)\.(\w+)$/);
+             my $currentversion=&Apache::lonnet::getversion($_);
+             my $linkurl=&Apache::lonnet::clutter($_);
+             $r->print(
+                 '<tr><td><a href="'.$linkurl.'" target="cat">'.$linkurl.
+                 '</a></td><td>'.
+                 localtime($changes{$_}).'</td><td>'.$currentversion.'</td>'.
+		       '<td>');
+             my $lastold=1;
+             for (my $prevvers=1;$prevvers<$currentversion;$prevvers++) {
+                 my $url=$root.'.'.$prevvers.'.'.$extension;
+                 if (&Apache::lonnet::metadata($url,'lastrevisiondate')<
+                                                             $starttime) {
+                     $lastold=$prevvers;
+                 }
+             }
+            for (my $prevvers=$lastold;$prevvers<$currentversion;$prevvers++) {
+                 my $url=$root.'.'.$prevvers.'.'.$extension;
+                 $r->print('<a href="'.&Apache::lonnet::clutter($url).
+                   '">Version '.$prevvers.' ('.
+                 localtime(&Apache::lonnet::metadata($url,'lastrevisiondate')).
+                 ')</a>');
+                 if (&Apache::loncommon::fileembstyle($extension) eq 'ssi') {
+                    $r->print(' <a href="/adm/diff?filename='.
+                            &Apache::lonnet::clutter($root.'.'.$extension).
+                            '&versionone='.$prevvers.
+			     '">Diffs</a>');
+                 }
+                 $r->print('<br />');
+             }
+             $r->print('</td></tr>');
+          }
+       }
+       $r->print('</table>');
+   } else {
+       $r->print('<p>No content modifications yet.</p>');
+   }
+   &untiehash();
+  } else {
 # is this a standard course?
 
     my $standard=($ENV{'request.course.uri'}=~/^\/uploaded\//);
@@ -234,8 +437,11 @@ sub handler {
     my $events='';
     my $showdoc=0;
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
-       ['folder','foldername','showdoc']);
-    unless ($ENV{'form.showdoc'}) { # got called from remote
+       ['folder','foldername']);
+    if ($r->uri=~/^\/adm\/coursedocs\/showdoc\/(.*)$/) {
+       $showdoc=$1;
+    }
+    unless ($showdoc) { # got called from remote
        $forcestandard=($ENV{'form.folder'}=~/^default_/);
        $forcesupplement=($ENV{'form.folder'}=~/^supplemental_/);
 
@@ -247,8 +453,7 @@ sub handler {
        }
     } else { # got called in sequence from course
        $allowed=0;
-       $showdoc=1;
-       $script=&Apache::lonxml::registerurl(1,undef);
+       $script='</script>'.&Apache::lonxml::registerurl(1,undef).'<script>';
        $events='onLoad="'.&Apache::lonxml::loadevents.
            '" onUnload="'.&Apache::lonxml::unloadevents.'"';
     }
@@ -268,6 +473,8 @@ sub handler {
 
     $iconpath = $r->dir_config('lonIconsURL') . "/";
 
+    my $now=time;
+
 # print screen
     $r->print(<<ENDDOCUMENT);
 <html>
@@ -275,11 +482,11 @@ sub handler {
 <title>The LearningOnline Network with CAPA</title>
 <script>
 $script
-</head>
+</script>
 ENDDOCUMENT
    if ($allowed) {
     $r->print(<<ENDNEWSCRIPT);
-
+<script>
 function makenewfolder(targetform,folderseq) {
     var foldername=prompt('Name of New Folder','New Folder');
     if (foldername) {
@@ -293,6 +500,20 @@ function makenewext(targetname) {
     window.open('/adm/rat/extpickframe.html');
 }
 
+function makesmppage() {
+    var title=prompt('Listed Title for the Page');
+    this.document.forms.newsmppg.importdetail.value=
+	title+'=/adm/$udom/$uname/$now/smppg';
+    this.document.forms.newsmppg.submit();
+}
+
+function makebulboard() {
+    var title=prompt('Listed Title for the Bulletin Board');
+    this.document.forms.newbul.importdetail.value=
+	title+'=/adm/$udom/$uname/$now/bulletinboard';
+    this.document.forms.newbul.submit();
+}
+
 function finishpick() {
     var title=this.document.forms.extimport.title.value;
     var url=this.document.forms.extimport.url.value;
@@ -305,11 +526,21 @@ function finishpick() {
 ENDNEWSCRIPT
   }
 # -------------------------------------------------------------------- Body tag
-  $r->print(&Apache::loncommon::bodytag('Course Documents','',$events));
+  $r->print('</head>'.
+            &Apache::loncommon::bodytag('Course Documents','',$events));
   unless ($showdoc) {
+    if ($allowed) {
+       $r->print(<<ENDCOURSEVERIFY);
+<form action="/adm/coursedocs" method="post" name="courseverify">
+<input type="submit" name="verify" value="Verify Content" />
+<input type="submit" name="versions" value="Check Resource Versions" />
+</form>
+ENDCOURSEVERIFY
+    }
 # --------------------------------------------------------- Standard documents
+    $r->print('<table>');
     if (($standard) && ($allowed) && (!$forcesupplement)) {
-       $r->print('<h2>Main Course Documents</h2>');
+       $r->print('<tr><td bgcolor="#FFFFBB"><h2>Main Course Documents</h2>');
        my $folder=$ENV{'form.folder'};
        unless ($folder=~/^default/) { $folder='default'; }
        &editor($r,$coursenum,$coursedom,$folder,$allowed);
@@ -367,9 +598,25 @@ value="Syllabus=/public/$coursedom/$cour
 <input name="newsyl" type="submit" value="Syllabus" />
 </form>
 <form action="/adm/coursedocs" method="post" name="newnav">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
 <input type=hidden name="importdetail" 
 value="Navigate Content=/adm/navmaps">
-<input name="newsyl" type="submit" value="Navigate Content" />
+<input name="newnav" type="submit" value="Navigate Content" />
+</form>
+<form action="/adm/coursedocs" method="post" name="newsmppg">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
+<input type=hidden name="importdetail" value="">
+<input name="newsmppg" type="button" value="Simple Page"
+onClick="javascript:makesmppage();" />
+</form>
+<form action="/adm/coursedocs" method="post" name="newbul">
+<input type="hidden" name="folder" value="$folder">
+<input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
+<input type=hidden name="importdetail" value="">
+<input name="newbulletin" type="button" value="Bulletin Board"
+onClick="javascript:makebulboard();" />
 </form>
 <form action="/adm/coursedocs" method="post" name="newaboutme">
 <input type="hidden" name="folder" value="$folder">
@@ -381,11 +628,12 @@ value="$plainname=/adm/$udom/$uname/abou
 </td></tr>
 </table>
 ENDFORM
-       $r->print('<hr />');
+       $r->print('</td></tr>');
     }
 # ----------------------------------------------------- Supplemental documents
     if (!$forcestandard) {
-       $r->print('<h2>Supplemental Course Documents</h2>');
+       $r->print(
+  '<tr><td bgcolor="#BBFFFF"><h2>Supplemental Course Documents</h2>');
        my $folder=$ENV{'form.folder'};
        unless ($folder=~/supplemental/) { $folder='supplemental'; }
        &editor($r,$coursenum,$coursedom,$folder,$allowed);
@@ -453,20 +701,22 @@ value="$plainname=/adm/$udom/$uname/abou
 <input name="newaboutme" type="submit" value="My Personal Info" />
 </form>
 </td></tr>
-</table>
+</table></td></tr>
 ENDSUPFORM
        }
     }
     if ($allowed) {
 	$r->print('<form name="extimport"><input type="hidden" name="title"><input type="hidden" name="url"><input type="hidden" name="useform"></form>');
     }
+    $r->print('</table>');
   } else {
 # -------------------------------------------------------- This is showdoc mode
       $r->print("<h1>Uploaded Document</h1><p>It is recommended that you use an up-to-date virus scanner before handling this file.</p><p><table>".
-         &entryline(0,"Click to download or use your browser's Save Link function",$ENV{'form.showdoc'}).'</table></p>');
+         &entryline(0,"Click to download or use your browser's Save Link function",$showdoc).'</table></p>');
   }
-  $r->print('</body></html>');
-  return OK;
+ }
+ $r->print('</body></html>');
+ return OK;
 } 
 
 1;