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    1: # The LearningOnline Network
    2: # Documents
    3: #
    4: # $Id: londocs.pm,v 1.25 2002/10/10 17:17:11 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.'" target="cat_'.$folder.
  215: '"><img src="/adm/lonIcons/'.
  216:         $icon.'.gif" border="0"></a></td>'.
  217:         "<td bgcolor='#FFFFBB'><a href='$url' target='cat_$folder'>$title</a></td></tr>";
  218:     return $line;
  219: }
  220: 
  221: # ================================================================ Main Handler
  222: sub handler {
  223:     my $r = shift;
  224:     $r->content_type('text/html');
  225:     $r->send_http_header;
  226:     return OK if $r->header_only;
  227: 
  228: # is this a standard course?
  229: 
  230:     my $standard=($ENV{'request.course.uri'}=~/^\/uploaded\//);
  231:     my $forcestandard;
  232:     my $forcesupplement;
  233:     my $script='';
  234:     my $allowed;
  235:     my $events='';
  236:     my $showdoc=0;
  237:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
  238:        ['folder','foldername']);
  239:     if ($r->uri=~/^\/adm\/coursedocs\/showdoc\/(.*)$/) {
  240:        $showdoc=$1;
  241:     }
  242:     unless ($showdoc) { # got called from remote
  243:        $forcestandard=($ENV{'form.folder'}=~/^default_/);
  244:        $forcesupplement=($ENV{'form.folder'}=~/^supplemental_/);
  245: 
  246: # does this user have privileges to post, etc?
  247:        $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
  248:        if ($allowed) { 
  249:          &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['cmd']);
  250:          $script=&Apache::lonratedt::editscript('simple'); 
  251:        }
  252:     } else { # got called in sequence from course
  253:        $allowed=0;
  254:        $script='</script>'.&Apache::lonxml::registerurl(1,undef).'<script>';
  255:        $events='onLoad="'.&Apache::lonxml::loadevents.
  256:            '" onUnload="'.&Apache::lonxml::unloadevents.'"';
  257:     }
  258: 
  259: # get course data
  260:     my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
  261:     my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
  262: 
  263: # get personal data
  264:  
  265:     my $uname=$ENV{'user.name'};
  266:     my $udom=$ENV{'user.domain'};
  267:     my $plainname=&Apache::lonnet::escape(
  268:                      &Apache::loncommon::plainname($uname,$udom));
  269: 
  270: # graphics settings
  271: 
  272:     $iconpath = $r->dir_config('lonIconsURL') . "/";
  273: 
  274:     my $now=time;
  275: 
  276: # print screen
  277:     $r->print(<<ENDDOCUMENT);
  278: <html>
  279: <head>
  280: <title>The LearningOnline Network with CAPA</title>
  281: <script>
  282: $script
  283: </script>
  284: ENDDOCUMENT
  285:    if ($allowed) {
  286:     $r->print(<<ENDNEWSCRIPT);
  287: <script>
  288: function makenewfolder(targetform,folderseq) {
  289:     var foldername=prompt('Name of New Folder','New Folder');
  290:     if (foldername) {
  291: 	targetform.importdetail.value=foldername+"="+folderseq;
  292:         targetform.submit();
  293:     }
  294: }
  295: 
  296: function makenewext(targetname) {
  297:     this.document.forms.extimport.useform.value=targetname;
  298:     window.open('/adm/rat/extpickframe.html');
  299: }
  300: 
  301: function makesmppage() {
  302:     var title=prompt('Listed Title for the Page');
  303:     this.document.forms.newsmppg.importdetail.value=
  304: 	title+'=/adm/$udom/$uname/$now/smppg';
  305:     this.document.forms.newsmppg.submit();
  306: }
  307: 
  308: function makebulboard() {
  309:     var title=prompt('Listed Title for the Bulletin Board');
  310:     this.document.forms.newbul.importdetail.value=
  311: 	title+'=/adm/$udom/$uname/$now/bulletinboard';
  312:     this.document.forms.newbul.submit();
  313: }
  314: 
  315: function finishpick() {
  316:     var title=this.document.forms.extimport.title.value;
  317:     var url=this.document.forms.extimport.url.value;
  318:     var form=this.document.forms.extimport.useform.value;
  319:     eval
  320:      ('this.document.forms.'+form+'.importdetail.value="'+title+'='+url+
  321:     '";this.document.forms.'+form+'.submit();');
  322: }
  323: </script>
  324: ENDNEWSCRIPT
  325:   }
  326: # -------------------------------------------------------------------- Body tag
  327:   $r->print('</head>'.
  328:             &Apache::loncommon::bodytag('Course Documents','',$events));
  329:   unless ($showdoc) {
  330:     if ($allowed) {
  331:        $r->print(<<ENDCOURSEVERIFY);
  332: <form name="courseverify">
  333: <input type="submit" name="verify" value="Verify Content" />
  334: <input type="submit" name="versions" value="Check Resource Versions" />
  335: </form>
  336: ENDCOURSEVERIFY
  337:     }
  338: # --------------------------------------------------------- Standard documents
  339:     $r->print('<table>');
  340:     if (($standard) && ($allowed) && (!$forcesupplement)) {
  341:        $r->print('<tr><td bgcolor="#FFFFBB"><h2>Main Course Documents</h2>');
  342:        my $folder=$ENV{'form.folder'};
  343:        unless ($folder=~/^default/) { $folder='default'; }
  344:        &editor($r,$coursenum,$coursedom,$folder,$allowed);
  345:        my $folderseq='/uploaded/'.$coursedom.'/'.$coursenum.'/default_'.time.
  346:                      '.sequence';
  347:        $r->print(<<ENDFORM);
  348: <table cellspacing=2><tr>
  349: <th bgcolor="#DDDDDD">Upload a new main course document</th>
  350: <th bgcolor="#DDDDDD">Import a published document</th>
  351: <th bgcolor="#DDDDDD">Special documents</th>
  352: </tr>
  353: <tr><td bgcolor="#DDDDDD">
  354: File:<br />
  355: <form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
  356: <input type="file" name="uploaddoc" size="50">
  357: <br />
  358: Title:<br /> 
  359: <input type="text" size="50" name="comment">
  360: <input type="hidden" name="folder" value="$folder">
  361: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  362: <input type="hidden" name="cmd" value="upload_default">
  363: <input type="submit" value="Upload Document">
  364: </form>
  365: </td>
  366: <td bgcolor="#DDDDDD">
  367: <form action="/adm/coursedocs" method="post" name="simpleedit">
  368: <input type="hidden" name="folder" value="$folder">
  369: <input type=hidden name="importdetail" value="">
  370: <input type=button onClick=
  371: "javascript:groupsearch()" value="Search">
  372: <input type=button onClick=
  373: "javascript:groupimport();" value="Import">
  374: </form>
  375: </td><td bgcolor="#DDDDDD">
  376: <form action="/adm/coursedocs" method="post" name="newfolder">
  377: <input type="hidden" name="folder" value="$folder">
  378: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  379: <input type=hidden name="importdetail" value="">
  380: <input name="newfolder" type="button"
  381: onClick="javascript:makenewfolder(this.form,'$folderseq');"
  382: value="New Folder" />
  383: </form>
  384: <form action="/adm/coursedocs" method="post" name="newext">
  385: <input type="hidden" name="folder" value="$folder">
  386: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  387: <input type=hidden name="importdetail" value="">
  388: <input name="newext" type="button" onClick="javascript:makenewext('newext');"
  389: value="External Resource" />
  390: </form>
  391: <form action="/adm/coursedocs" method="post" name="newsyl">
  392: <input type="hidden" name="folder" value="$folder">
  393: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  394: <input type=hidden name="importdetail" 
  395: value="Syllabus=/public/$coursedom/$coursenum/syllabus">
  396: <input name="newsyl" type="submit" value="Syllabus" />
  397: </form>
  398: <form action="/adm/coursedocs" method="post" name="newnav">
  399: <input type="hidden" name="folder" value="$folder">
  400: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  401: <input type=hidden name="importdetail" 
  402: value="Navigate Content=/adm/navmaps">
  403: <input name="newnav" type="submit" value="Navigate Content" />
  404: </form>
  405: <form action="/adm/coursedocs" method="post" name="newsmppg">
  406: <input type="hidden" name="folder" value="$folder">
  407: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  408: <input type=hidden name="importdetail" value="">
  409: <input name="newsmppg" type="button" value="Simple Page"
  410: onClick="javascript:makesmppage();" />
  411: </form>
  412: <form action="/adm/coursedocs" method="post" name="newbul">
  413: <input type="hidden" name="folder" value="$folder">
  414: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  415: <input type=hidden name="importdetail" value="">
  416: <input name="newbulletin" type="button" value="Bulletin Board"
  417: onClick="javascript:makebulboard();" />
  418: </form>
  419: <form action="/adm/coursedocs" method="post" name="newaboutme">
  420: <input type="hidden" name="folder" value="$folder">
  421: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  422: <input type=hidden name="importdetail" 
  423: value="$plainname=/adm/$udom/$uname/aboutme">
  424: <input name="newaboutme" type="submit" value="My Personal Info" />
  425: </form>
  426: </td></tr>
  427: </table>
  428: ENDFORM
  429:        $r->print('</td></tr>');
  430:     }
  431: # ----------------------------------------------------- Supplemental documents
  432:     if (!$forcestandard) {
  433:        $r->print(
  434:   '<tr><td bgcolor="#BBFFFF"><h2>Supplemental Course Documents</h2>');
  435:        my $folder=$ENV{'form.folder'};
  436:        unless ($folder=~/supplemental/) { $folder='supplemental'; }
  437:        &editor($r,$coursenum,$coursedom,$folder,$allowed);
  438:        if ($allowed) {
  439:        my $folderseq=
  440:                   '/uploaded/'.$coursedom.'/'.$coursenum.'/supplemental_'.time.
  441:                      '.sequence';
  442: 
  443:           $r->print(<<ENDSUPFORM);
  444: <table cellspacing=2><tr>
  445: <th bgcolor="#DDDDDD">Upload a new supplemental course document</th>
  446: <th bgcolor="#DDDDDD">Import a published document</th>
  447: <th bgcolor="#DDDDDD">Special documents</th>
  448: </tr>
  449: <tr><td bgcolor="#DDDDDD">
  450: <form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
  451: <input type="file" name="uploaddoc" size="50">
  452: <br />Comment:<br />
  453: <textarea cols=50 rows=4 name='comment'>
  454: </textarea>
  455: <input type="hidden" name="folder" value="$folder">
  456: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  457: <input type="hidden" name="cmd" value="upload_supplemental">
  458: <input type="submit" value="Upload Document">
  459: </form>
  460: </td>
  461: <td bgcolor="#DDDDDD">
  462: <form action="/adm/coursedocs" method="post" name="simpleedit">
  463: <input type="hidden" name="folder" value="$folder">
  464: <input type=hidden name="importdetail" value="">
  465: <input type=button onClick=
  466: "javascript:groupsearch()" value="Search">
  467: <input type=button onClick=
  468: "javascript:groupimport();" value="Import">
  469: </form>
  470: </td><td bgcolor="#DDDDDD">
  471: <form action="/adm/coursedocs" method="post" name="supnewfolder">
  472: <input type="hidden" name="folder" value="$folder">
  473: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  474: <input type=hidden name="importdetail" value="">
  475: <input name="newfolder" type="button"
  476: onClick="javascript:makenewfolder(this.form,'$folderseq');"
  477: value="New Folder" />
  478: </form>
  479: <form action="/adm/coursedocs" method="post" name="supnewext">
  480: <input type="hidden" name="folder" value="$folder">
  481: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  482: <input type=hidden name="importdetail" value="">
  483: <input name="newext" type="button" 
  484: onClick="javascript:makenewext('supnewext');"
  485: value="External Resource" />
  486: </form>
  487: <form action="/adm/coursedocs" method="post" name="supnewsyl">
  488: <input type="hidden" name="folder" value="$folder">
  489: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  490: <input type=hidden name="importdetail" 
  491: value="Syllabus=/public/$coursedom/$coursenum/syllabus">
  492: <input name="newsyl" type="submit" value="Syllabus" />
  493: </form>
  494: <form action="/adm/coursedocs" method="post" name="subnewaboutme">
  495: <input type="hidden" name="folder" value="$folder">
  496: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
  497: <input type=hidden name="importdetail" 
  498: value="$plainname=/adm/$udom/$uname/aboutme">
  499: <input name="newaboutme" type="submit" value="My Personal Info" />
  500: </form>
  501: </td></tr>
  502: </table></td></tr>
  503: ENDSUPFORM
  504:        }
  505:     }
  506:     if ($allowed) {
  507: 	$r->print('<form name="extimport"><input type="hidden" name="title"><input type="hidden" name="url"><input type="hidden" name="useform"></form>');
  508:     }
  509:     $r->print('</table>');
  510:   } else {
  511: # -------------------------------------------------------- This is showdoc mode
  512:       $r->print("<h1>Uploaded Document</h1><p>It is recommended that you use an up-to-date virus scanner before handling this file.</p><p><table>".
  513:          &entryline(0,"Click to download or use your browser's Save Link function",$showdoc).'</table></p>');
  514:   }
  515:   $r->print('</body></html>');
  516:   return OK;
  517: } 
  518: 
  519: 1;
  520: __END__