File:  [LON-CAPA] / loncom / interface / londocs.pm
Revision 1.20: download - view: text, annotated - select for diffs
Thu Sep 5 19:37:00 2002 UTC (21 years, 9 months ago) by www
Branches: MAIN
CVS tags: HEAD
Bug 705 and various small fixes to londocs.pm

    1: # The LearningOnline Network
    2: # Documents
    3: #
    4: # $Id: londocs.pm,v 1.20 2002/09/05 19:37:00 www Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: package Apache::londocs;
   30: 
   31: use strict;
   32: use Apache::Constants qw(:common);
   33: use Apache::lonnet;
   34: use Apache::loncommon;
   35: use Apache::lonratedt;
   36: use Apache::lonratsrv;
   37: use Apache::lonxml;
   38: 
   39: my $iconpath;
   40: 
   41: # Mapread read maps into lonratedt::global arrays 
   42: # @order and @resources, determines status
   43: # sets @order - pointer to resources in right order
   44: # sets @resources - array with the resources with correct idx
   45: #
   46: 
   47: sub mapread {
   48:     my ($coursenum,$coursedom,$map)=@_;
   49:     return
   50:       &Apache::lonratedt::mapread('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
   51:                                 $map);
   52: }
   53: 
   54: sub storemap {
   55:     my ($coursenum,$coursedom,$map)=@_;
   56:     return
   57:       &Apache::lonratedt::storemap('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
   58:                                 $map,1);
   59: }
   60: 
   61: sub editor {
   62:     my ($r,$coursenum,$coursedom,$folder,$allowed)=@_;
   63:     if ($ENV{'form.foldername'}) {
   64: 	$r->print('<h3>Folder: '.$ENV{'form.foldername'}.'</h3>');
   65:     }
   66:     my $errtext='';
   67:     my $fatal=0;
   68:     ($errtext,$fatal)=
   69:           &mapread($coursenum,$coursedom,$folder.'.sequence');
   70:     if ($#Apache::lonratedt::order<1) {
   71:        	$Apache::lonratedt::order[0]=1;
   72:         $Apache::lonratedt::resources[1]='';
   73:     }
   74:     if ($fatal) {
   75: 	   $r->print('<p><font color="red">'.$errtext.'</font></p>');
   76:     } else {
   77: # ------------------------------------------------------------ Process commands
   78: # ---------------- if they are for this folder and user allowed to make changes
   79: 	if (($allowed) && ($ENV{'form.folder'} eq $folder)) {
   80: # upload a file, if present
   81:            if (($ENV{'form.uploaddoc.filename'}) &&
   82:                ($ENV{'form.cmd'}=~/^upload_(\w+)/)) {
   83: 	    if ($folder=~/^$1/) {
   84: # this is for a course, not a user, so set coursedoc flag
   85: # probably the only place in the system where this should be "1"
   86: 	      my $url=&Apache::lonnet::userfileupload('uploaddoc',1);
   87:               my $ext='false';
   88:               if ($url=~/^http\:\/\//) { $ext='true'; }
   89:               $url=~s/\:/\&colon;/g;
   90: 	      my $comment=$ENV{'form.comment'};
   91:               $comment=~s/\</\&lt\;/g;
   92:               $comment=~s/\>/\&gt\;/g;
   93:               $comment=~s/\:/\&colon;/g;
   94:               if ($folder=~/^supplemental/) {
   95: 		  $comment=time.'___&&&___'.$ENV{'user.name'}.'___&&&___'.
   96: 		      $ENV{'user.domain'}.'___&&&___'.$comment;
   97:               }
   98:               my $newidx=$#Apache::lonratedt::resources+1;
   99:               $Apache::lonratedt::resources[$newidx]=
  100:                   $comment.':'.$url.':'.$ext.':normal:res';
  101:               $Apache::lonratedt::order[$#Apache::lonratedt::order+1]=
  102:                                                               $newidx;       
  103:  	      &storemap($coursenum,$coursedom,$folder.'.sequence');
  104: 	     }
  105:             }
  106: 	    if ($ENV{'form.cmd'}) {
  107:                 my ($cmd,$idx)=split(/\_/,$ENV{'form.cmd'});
  108:                 if ($cmd eq 'del') {
  109: 		    for (my $i=$idx;$i<$#Apache::lonratedt::order;$i++) {
  110:                         $Apache::lonratedt::order[$i]=
  111:                           $Apache::lonratedt::order[$i+1];
  112:                     }
  113:                     $#Apache::lonratedt::order--;
  114:                 } elsif ($cmd eq 'up') {
  115:                     my $i=$Apache::lonratedt::order[$idx-1];
  116:                     $Apache::lonratedt::order[$idx-1]=
  117: 			$Apache::lonratedt::order[$idx];
  118:                     $Apache::lonratedt::order[$idx]=$i;
  119:                 } elsif ($cmd eq 'down') {
  120:                     my $i=$Apache::lonratedt::order[$idx+1];
  121:                     $Apache::lonratedt::order[$idx+1]=
  122: 			$Apache::lonratedt::order[$idx];
  123:                     $Apache::lonratedt::order[$idx]=$i;
  124:                 }
  125: # Store the changed version
  126: 		&storemap($coursenum,$coursedom,$folder.'.sequence');
  127:             }
  128: # Group import/search
  129: 	    if ($ENV{'form.importdetail'}) {
  130:                foreach (split(/\&/,$ENV{'form.importdetail'})) {
  131:                   if (defined($_)) {
  132: 	             my ($name,$url)=split(/\=/,$_);
  133:                      $name=&Apache::lonnet::unescape($name);
  134:                      $url=&Apache::lonnet::unescape($url);
  135:                      if ($url) {
  136: 	                my $idx=$#Apache::lonratedt::resources+1;
  137:                         $Apache::lonratedt::order
  138:                            [$#Apache::lonratedt::order+1]=$idx;
  139:                         my $ext='false';
  140:                         if ($url=~/^http\:\/\//) { $ext='true'; }
  141:                         $url=~s/\:/\&colon;/g;
  142:                         $Apache::lonratedt::resources[$idx]=
  143:                            $name.':'.$url.':'.$ext.':normal:res';
  144: 	             }
  145:                  }
  146: 	      }
  147: # Store the changed version
  148: 		&storemap($coursenum,$coursedom,$folder.'.sequence');
  149:             }
  150:        }
  151: # ---------------------------------------------------------------- End commands
  152: # ---------------------------------------------------------------- Print screen
  153:         my $idx=0;
  154:         $r->print('<table>');
  155:         foreach (@Apache::lonratedt::order) {
  156:            my ($name,$url)=split(/\:/,$Apache::lonratedt::resources[$_]);
  157:            unless ($name) {  $name=(split(/\//,$url))[-1]; }
  158:            unless ($name) { $name='EMPTY'; }
  159:            $r->print(&entryline($idx,$name,$url,$folder,$allowed));
  160:            $idx++;
  161:         }
  162:         $r->print('</table>');
  163:     }
  164: }
  165: 
  166: # --------------------------------------------------------------- An entry line
  167: 
  168: sub entryline {
  169:     my ($index,$title,$url,$folder,$allowed)=@_;
  170:     my $line='<tr>';
  171: # Edit commands
  172:     if ($allowed) {
  173:        $line.=(<<END);
  174: <td><table border='0' cellspacing='0' cellpadding='0'>
  175: <tr><td><a href='/adm/coursedocs?folder=$folder&cmd=up_$index'>
  176: <img src="${iconpath}move_up.gif" alt='UP' border='0' /></a></td></tr>
  177: <tr><td><a href='/adm/coursedocs?folder=$folder&cmd=down_$index'>
  178: <img src="${iconpath}move_down.gif" alt='DOWN' border='0' /></a></td></tr>
  179: </table></td><td>
  180: <a href='/adm/coursedocs?folder=$folder&cmd=del_$index'>Remove</td>
  181: END
  182:     }
  183: # Figure out what kind of a resource this is
  184:     my ($extension)=($url=~/\.(\w+)$/);
  185:     my $uploaded=($url=~/^\/*uploaded\//);
  186:     my $icon='unknown';
  187:     if (-e "/home/httpd/html/adm/lonIcons/$extension.gif") {
  188: 	$icon=$extension;
  189:     }
  190:     my $isfolder=0;
  191:     if ($uploaded) {
  192:        if ($extension eq 'sequence') {
  193: 	  $icon='folder_closed';
  194:           $url=~/\/(\w+)\.sequence/;
  195:           $url='/adm/coursedocs?folder='.$1;
  196:           $isfolder=1;
  197:        } else {
  198: 	  $url=&Apache::lonnet::tokenwrapper($url);
  199:        } 
  200:     }
  201:     $url=~s/^http\&colon\;\/\//\/adm\/wrapper\/ext\//;
  202: # Title
  203:     $title=&Apache::lonnet::unescape($title);
  204:     my $foldertitle=$title;
  205:     if ($title=~
  206:  /^(\d+)\_\_\_\&\&\&\_\_\_(\w+)\_\_\_\&\&\&\_\_\_(\w+)\_\_\_\&\&\&\_\_\_(.*)$/
  207: 	) { 
  208:             $foldertitle=&Apache::lontexconvert::msgtexconverted($4);
  209:             $title='<i>'.localtime($1).'</i> '.
  210:                 &Apache::loncommon::plainname($2,$3).': <br>'.
  211: 		$foldertitle;
  212: 	}
  213:     if ($isfolder) { $url.='&foldername='.$foldertitle; }
  214:     $line.='<td bgcolor="#FFFFBB"><a href="'.$url.'"><img src="/adm/lonIcons/'.
  215:         $icon.'.gif" border="0"></a></td>'.
  216:         "<td bgcolor='#FFFFBB'><a href='$url'>$title</a></td></tr>";
  217:     return $line;
  218: }
  219: 
  220: # ================================================================ Main Handler
  221: sub handler {
  222:     my $r = shift;
  223:     $r->content_type('text/html');
  224:     $r->send_http_header;
  225:     return OK if $r->header_only;
  226: 
  227: # is this a standard course?
  228: 
  229:     my $standard=($ENV{'request.course.uri'}=~/^\/uploaded\//);
  230:     my $forcestandard;
  231:     my $forcesupplement;
  232:     my $script='';
  233:     my $allowed;
  234:     my $events='';
  235:     my $showdoc=0;
  236:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
  237:        ['folder','foldername','showdoc']);
  238:     unless ($ENV{'form.showdoc'}) { # got called from remote
  239:        $forcestandard=($ENV{'form.folder'}=~/^default_/);
  240:        $forcesupplement=($ENV{'form.folder'}=~/^supplemental_/);
  241: 
  242: # does this user have privileges to post, etc?
  243:        $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
  244:        if ($allowed) { 
  245:          &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['cmd']);
  246:          $script=&Apache::lonratedt::editscript('simple'); 
  247:        }
  248:     } else { # got called in sequence from course
  249:        $allowed=0;
  250:        $showdoc=1;
  251:        $script=&Apache::lonxml::registerurl(1,undef);
  252:        $events='onLoad="'.&Apache::lonxml::loadevents.
  253:            '" onUnload="'.&Apache::lonxml::unloadevents.'"';
  254:     }
  255: 
  256: # get course data
  257:     my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
  258:     my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
  259: 
  260: # get personal data
  261:  
  262:     my $uname=$ENV{'user.name'};
  263:     my $udom=$ENV{'user.domain'};
  264:     my $plainname=&Apache::lonnet::escape(
  265:                      &Apache::loncommon::plainname($uname,$udom));
  266: 
  267: # graphics settings
  268: 
  269:     $iconpath = $r->dir_config('lonIconsURL') . "/";
  270: 
  271: # print screen
  272:     $r->print(<<ENDDOCUMENT);
  273: <html>
  274: <head>
  275: <title>The LearningOnline Network with CAPA</title>
  276: <script>
  277: $script
  278: </script>
  279: ENDDOCUMENT
  280:    if ($allowed) {
  281:     $r->print(<<ENDNEWSCRIPT);
  282: <script>
  283: function makenewfolder(targetform,folderseq) {
  284:     var foldername=prompt('Name of New Folder','New Folder');
  285:     if (foldername) {
  286: 	targetform.importdetail.value=foldername+"="+folderseq;
  287:         targetform.submit();
  288:     }
  289: }
  290: 
  291: function makenewext(targetname) {
  292:     this.document.forms.extimport.useform.value=targetname;
  293:     window.open('/adm/rat/extpickframe.html');
  294: }
  295: 
  296: function finishpick() {
  297:     var title=this.document.forms.extimport.title.value;
  298:     var url=this.document.forms.extimport.url.value;
  299:     var form=this.document.forms.extimport.useform.value;
  300:     eval
  301:      ('this.document.forms.'+form+'.importdetail.value="'+title+'='+url+
  302:     '";this.document.forms.'+form+'.submit();');
  303: }
  304: </script>
  305: ENDNEWSCRIPT
  306:   }
  307: # -------------------------------------------------------------------- Body tag
  308:   $r->print('</head>'.
  309:             &Apache::loncommon::bodytag('Course Documents','',$events));
  310:   unless ($showdoc) {
  311: # --------------------------------------------------------- Standard documents
  312:     if (($standard) && ($allowed) && (!$forcesupplement)) {
  313:        $r->print('<h2>Main Course Documents</h2>');
  314:        my $folder=$ENV{'form.folder'};
  315:        unless ($folder=~/^default/) { $folder='default'; }
  316:        &editor($r,$coursenum,$coursedom,$folder,$allowed);
  317:        my $folderseq='/uploaded/'.$coursedom.'/'.$coursenum.'/default_'.time.
  318:                      '.sequence';
  319:        $r->print(<<ENDFORM);
  320: <table cellspacing=2><tr>
  321: <th bgcolor="#DDDDDD">Upload a new main course document</th>
  322: <th bgcolor="#DDDDDD">Import a published document</th>
  323: <th bgcolor="#DDDDDD">Special documents</th>
  324: </tr>
  325: <tr><td bgcolor="#DDDDDD">
  326: File:<br />
  327: <form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
  328: <input type="file" name="uploaddoc" size="50">
  329: <br />
  330: Title:<br /> 
  331: <input type="text" size="50" name="comment">
  332: <input type="hidden" name="folder" value="$folder">
  333: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  334: <input type="hidden" name="cmd" value="upload_default">
  335: <input type="submit" value="Upload Document">
  336: </form>
  337: </td>
  338: <td bgcolor="#DDDDDD">
  339: <form action="/adm/coursedocs" method="post" name="simpleedit">
  340: <input type="hidden" name="folder" value="$folder">
  341: <input type=hidden name="importdetail" value="">
  342: <input type=button onClick=
  343: "javascript:groupsearch()" value="Search">
  344: <input type=button onClick=
  345: "javascript:groupimport();" value="Import">
  346: </form>
  347: </td><td bgcolor="#DDDDDD">
  348: <form action="/adm/coursedocs" method="post" name="newfolder">
  349: <input type="hidden" name="folder" value="$folder">
  350: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  351: <input type=hidden name="importdetail" value="">
  352: <input name="newfolder" type="button"
  353: onClick="javascript:makenewfolder(this.form,'$folderseq');"
  354: value="New Folder" />
  355: </form>
  356: <form action="/adm/coursedocs" method="post" name="newext">
  357: <input type="hidden" name="folder" value="$folder">
  358: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  359: <input type=hidden name="importdetail" value="">
  360: <input name="newext" type="button" onClick="javascript:makenewext('newext');"
  361: value="External Resource" />
  362: </form>
  363: <form action="/adm/coursedocs" method="post" name="newsyl">
  364: <input type="hidden" name="folder" value="$folder">
  365: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  366: <input type=hidden name="importdetail" 
  367: value="Syllabus=/public/$coursedom/$coursenum/syllabus">
  368: <input name="newsyl" type="submit" value="Syllabus" />
  369: </form>
  370: <form action="/adm/coursedocs" method="post" name="newnav">
  371: <input type="hidden" name="folder" value="$folder">
  372: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  373: <input type=hidden name="importdetail" 
  374: value="Navigate Content=/adm/navmaps">
  375: <input name="newnav" type="submit" value="Navigate Content" />
  376: </form>
  377: <form action="/adm/coursedocs" method="post" name="newaboutme">
  378: <input type="hidden" name="folder" value="$folder">
  379: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  380: <input type=hidden name="importdetail" 
  381: value="$plainname=/adm/$udom/$uname/aboutme">
  382: <input name="newaboutme" type="submit" value="My Personal Info" />
  383: </form>
  384: </td></tr>
  385: </table>
  386: ENDFORM
  387:        $r->print('<hr />');
  388:     }
  389: # ----------------------------------------------------- Supplemental documents
  390:     if (!$forcestandard) {
  391:        $r->print('<h2>Supplemental Course Documents</h2>');
  392:        my $folder=$ENV{'form.folder'};
  393:        unless ($folder=~/supplemental/) { $folder='supplemental'; }
  394:        &editor($r,$coursenum,$coursedom,$folder,$allowed);
  395:        if ($allowed) {
  396:        my $folderseq=
  397:                   '/uploaded/'.$coursedom.'/'.$coursenum.'/supplemental_'.time.
  398:                      '.sequence';
  399: 
  400:           $r->print(<<ENDSUPFORM);
  401: <table cellspacing=2><tr>
  402: <th bgcolor="#DDDDDD">Upload a new supplemental course document</th>
  403: <th bgcolor="#DDDDDD">Import a published document</th>
  404: <th bgcolor="#DDDDDD">Special documents</th>
  405: </tr>
  406: <tr><td bgcolor="#DDDDDD">
  407: <form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
  408: <input type="file" name="uploaddoc" size="50">
  409: <br />Comment:<br />
  410: <textarea cols=50 rows=4 name='comment'>
  411: </textarea>
  412: <input type="hidden" name="folder" value="$folder">
  413: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  414: <input type="hidden" name="cmd" value="upload_supplemental">
  415: <input type="submit" value="Upload Document">
  416: </form>
  417: </td>
  418: <td bgcolor="#DDDDDD">
  419: <form action="/adm/coursedocs" method="post" name="simpleedit">
  420: <input type="hidden" name="folder" value="$folder">
  421: <input type=hidden name="importdetail" value="">
  422: <input type=button onClick=
  423: "javascript:groupsearch()" value="Search">
  424: <input type=button onClick=
  425: "javascript:groupimport();" value="Import">
  426: </form>
  427: </td><td bgcolor="#DDDDDD">
  428: <form action="/adm/coursedocs" method="post" name="supnewfolder">
  429: <input type="hidden" name="folder" value="$folder">
  430: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  431: <input type=hidden name="importdetail" value="">
  432: <input name="newfolder" type="button"
  433: onClick="javascript:makenewfolder(this.form,'$folderseq');"
  434: value="New Folder" />
  435: </form>
  436: <form action="/adm/coursedocs" method="post" name="supnewext">
  437: <input type="hidden" name="folder" value="$folder">
  438: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  439: <input type=hidden name="importdetail" value="">
  440: <input name="newext" type="button" 
  441: onClick="javascript:makenewext('supnewext');"
  442: value="External Resource" />
  443: </form>
  444: <form action="/adm/coursedocs" method="post" name="supnewsyl">
  445: <input type="hidden" name="folder" value="$folder">
  446: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  447: <input type=hidden name="importdetail" 
  448: value="Syllabus=/public/$coursedom/$coursenum/syllabus">
  449: <input name="newsyl" type="submit" value="Syllabus" />
  450: </form>
  451: <form action="/adm/coursedocs" method="post" name="subnewaboutme">
  452: <input type="hidden" name="folder" value="$folder">
  453: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  454: <input type=hidden name="importdetail" 
  455: value="$plainname=/adm/$udom/$uname/aboutme">
  456: <input name="newaboutme" type="submit" value="My Personal Info" />
  457: </form>
  458: </td></tr>
  459: </table>
  460: ENDSUPFORM
  461:        }
  462:     }
  463:     if ($allowed) {
  464: 	$r->print('<form name="extimport"><input type="hidden" name="title"><input type="hidden" name="url"><input type="hidden" name="useform"></form>');
  465:     }
  466:   } else {
  467: # -------------------------------------------------------- This is showdoc mode
  468:       $r->print("<h1>Uploaded Document</h1><p>It is recommended that you use an up-to-date virus scanner before handling this file.</p><p><table>".
  469:          &entryline(0,"Click to download or use your browser's Save Link function",$ENV{'form.showdoc'}).'</table></p>');
  470:   }
  471:   $r->print('</body></html>');
  472:   return OK;
  473: } 
  474: 
  475: 1;
  476: __END__

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