Annotation of loncom/interface/londocs.pm, revision 1.54

1.1       www         1: # The LearningOnline Network
1.2       www         2: # Documents
1.1       www         3: #
1.54    ! www         4: # $Id: londocs.pm,v 1.53 2003/05/01 02:20:17 www Exp $
1.1       www         5: #
1.3       www         6: # Copyright Michigan State University Board of Trustees
1.1       www         7: #
1.3       www         8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
1.1       www         9: #
1.3       www        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.
1.1       www        14: #
1.3       www        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: 
1.2       www        29: package Apache::londocs;
1.1       www        30: 
                     31: use strict;
1.28      www        32: use Apache::Constants qw(:common :http);
1.4       www        33: use Apache::lonnet;
                     34: use Apache::loncommon;
1.7       www        35: use Apache::lonratedt;
                     36: use Apache::lonratsrv;
1.15      www        37: use Apache::lonxml;
1.38      www        38: use HTML::Entities;
1.27      www        39: use GDBM_File;
1.7       www        40: 
1.8       www        41: my $iconpath;
1.7       www        42: 
1.27      www        43: my %hash;
                     44: 
                     45: my $hashtied;
1.29      www        46: my %alreadyseen=();
1.27      www        47: 
1.40      www        48: my $hadchanges;
                     49: 
1.47      www        50: # Available help topics
                     51: 
                     52: my %help=();
                     53: 
1.7       www        54: # Mapread read maps into lonratedt::global arrays 
1.10      www        55: # @order and @resources, determines status
1.7       www        56: # sets @order - pointer to resources in right order
                     57: # sets @resources - array with the resources with correct idx
                     58: #
                     59: 
                     60: sub mapread {
                     61:     my ($coursenum,$coursedom,$map)=@_;
                     62:     return
                     63:       &Apache::lonratedt::mapread('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
                     64:                                 $map);
                     65: }
                     66: 
                     67: sub storemap {
                     68:     my ($coursenum,$coursedom,$map)=@_;
1.40      www        69:     $hadchanges=1;
1.7       www        70:     return
                     71:       &Apache::lonratedt::storemap('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
1.15      www        72:                                 $map,1);
1.7       www        73: }
                     74: 
                     75: sub editor {
                     76:     my ($r,$coursenum,$coursedom,$folder,$allowed)=@_;
1.17      www        77:     if ($ENV{'form.foldername'}) {
                     78: 	$r->print('<h3>Folder: '.$ENV{'form.foldername'}.'</h3>');
                     79:     }
1.10      www        80:     my $errtext='';
                     81:     my $fatal=0;
                     82:     ($errtext,$fatal)=
1.7       www        83:           &mapread($coursenum,$coursedom,$folder.'.sequence');
1.17      www        84:     if ($#Apache::lonratedt::order<1) {
                     85:        	$Apache::lonratedt::order[0]=1;
                     86:         $Apache::lonratedt::resources[1]='';
                     87:     }
1.7       www        88:     if ($fatal) {
                     89: 	   $r->print('<p><font color="red">'.$errtext.'</font></p>');
                     90:     } else {
                     91: # ------------------------------------------------------------ Process commands
1.16      www        92: # ---------------- if they are for this folder and user allowed to make changes
                     93: 	if (($allowed) && ($ENV{'form.folder'} eq $folder)) {
1.10      www        94: # upload a file, if present
                     95:            if (($ENV{'form.uploaddoc.filename'}) &&
                     96:                ($ENV{'form.cmd'}=~/^upload_(\w+)/)) {
                     97: 	    if ($folder=~/^$1/) {
                     98: # this is for a course, not a user, so set coursedoc flag
                     99: # probably the only place in the system where this should be "1"
                    100: 	      my $url=&Apache::lonnet::userfileupload('uploaddoc',1);
                    101:               my $ext='false';
                    102:               if ($url=~/^http\:\/\//) { $ext='true'; }
                    103:               $url=~s/\:/\&colon;/g;
                    104: 	      my $comment=$ENV{'form.comment'};
                    105:               $comment=~s/\</\&lt\;/g;
                    106:               $comment=~s/\>/\&gt\;/g;
                    107:               $comment=~s/\:/\&colon;/g;
1.17      www       108:               if ($folder=~/^supplemental/) {
                    109: 		  $comment=time.'___&&&___'.$ENV{'user.name'}.'___&&&___'.
                    110: 		      $ENV{'user.domain'}.'___&&&___'.$comment;
                    111:               }
1.10      www       112:               my $newidx=$#Apache::lonratedt::resources+1;
                    113:               $Apache::lonratedt::resources[$newidx]=
                    114:                   $comment.':'.$url.':'.$ext.':normal:res';
                    115:               $Apache::lonratedt::order[$#Apache::lonratedt::order+1]=
                    116:                                                               $newidx;       
                    117:  	      &storemap($coursenum,$coursedom,$folder.'.sequence');
                    118: 	     }
                    119:             }
1.8       www       120: 	    if ($ENV{'form.cmd'}) {
1.10      www       121:                 my ($cmd,$idx)=split(/\_/,$ENV{'form.cmd'});
                    122:                 if ($cmd eq 'del') {
                    123: 		    for (my $i=$idx;$i<$#Apache::lonratedt::order;$i++) {
                    124:                         $Apache::lonratedt::order[$i]=
                    125:                           $Apache::lonratedt::order[$i+1];
                    126:                     }
                    127:                     $#Apache::lonratedt::order--;
                    128:                 } elsif ($cmd eq 'up') {
1.38      www       129: 		  if (($idx) && (defined($Apache::lonratedt::order[$idx-1]))) {
1.10      www       130:                     my $i=$Apache::lonratedt::order[$idx-1];
                    131:                     $Apache::lonratedt::order[$idx-1]=
                    132: 			$Apache::lonratedt::order[$idx];
                    133:                     $Apache::lonratedt::order[$idx]=$i;
1.38      www       134: 		   }
1.10      www       135:                 } elsif ($cmd eq 'down') {
1.38      www       136: 		   if (defined($Apache::lonratedt::order[$idx+1])) {
1.10      www       137:                     my $i=$Apache::lonratedt::order[$idx+1];
                    138:                     $Apache::lonratedt::order[$idx+1]=
                    139: 			$Apache::lonratedt::order[$idx];
                    140:                     $Apache::lonratedt::order[$idx]=$i;
1.38      www       141: 		   }
1.36      www       142:                 } elsif ($cmd eq 'rename') {
                    143:                     my ($rtitle,@rrest)=split(/\:/,
                    144:                        $Apache::lonratedt::resources[
                    145: 				       $Apache::lonratedt::order[$idx]]);
1.38      www       146:                     my $comment=
                    147:                      &HTML::Entities::decode($ENV{'form.title'});
1.36      www       148:                     $comment=~s/\</\&lt\;/g;
                    149:                     $comment=~s/\>/\&gt\;/g;
                    150:                     $comment=~s/\:/\&colon;/g;
                    151:                     $Apache::lonratedt::resources[
                    152: 				       $Apache::lonratedt::order[$idx]]=
                    153:                              $comment.':'.join(':',@rrest);
                    154:                     
1.10      www       155:                 }
                    156: # Store the changed version
                    157: 		&storemap($coursenum,$coursedom,$folder.'.sequence');
1.8       www       158:             }
1.11      www       159: # Group import/search
                    160: 	    if ($ENV{'form.importdetail'}) {
                    161:                foreach (split(/\&/,$ENV{'form.importdetail'})) {
                    162:                   if (defined($_)) {
                    163: 	             my ($name,$url)=split(/\=/,$_);
                    164:                      $name=&Apache::lonnet::unescape($name);
                    165:                      $url=&Apache::lonnet::unescape($url);
                    166:                      if ($url) {
                    167: 	                my $idx=$#Apache::lonratedt::resources+1;
                    168:                         $Apache::lonratedt::order
                    169:                            [$#Apache::lonratedt::order+1]=$idx;
                    170:                         my $ext='false';
                    171:                         if ($url=~/^http\:\/\//) { $ext='true'; }
                    172:                         $url=~s/\:/\&colon;/g;
1.46      www       173:                         $name=~s/\:/\&colon;/g;
1.11      www       174:                         $Apache::lonratedt::resources[$idx]=
                    175:                            $name.':'.$url.':'.$ext.':normal:res';
                    176: 	             }
                    177:                  }
                    178: 	      }
                    179: # Store the changed version
                    180: 		&storemap($coursenum,$coursedom,$folder.'.sequence');
                    181:             }
1.53      www       182: # Loading a complete map
                    183: 	   if (($ENV{'form.importmap'}) && ($ENV{'form.loadmap'})) {
                    184:               foreach
                    185: (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$ENV{'form.importmap'}))) {
                    186:                    my $idx=$#Apache::lonratedt::resources;
                    187:                    $idx++;
                    188:                    $Apache::lonratedt::resources[$idx]=$_;
                    189:                    $Apache::lonratedt::order
                    190:                             [$#Apache::lonratedt::order+1]=$idx;
                    191:                 }
                    192: 
                    193: # Store the changed version
                    194: 		&storemap($coursenum,$coursedom,$folder.'.sequence');
                    195:            }
1.16      www       196:        }
                    197: # ---------------------------------------------------------------- End commands
1.7       www       198: # ---------------------------------------------------------------- Print screen
1.10      www       199:         my $idx=0;
                    200:         $r->print('<table>');
                    201:         foreach (@Apache::lonratedt::order) {
                    202:            my ($name,$url)=split(/\:/,$Apache::lonratedt::resources[$_]);
                    203:            unless ($name) {  $name=(split(/\//,$url))[-1]; }
1.37      www       204:            unless ($name) { $name='NO RESOURCE'; $url='/adm/notfound.html'; }
1.50      www       205:            $r->print(&entryline($idx,$name,$url,$folder,$allowed,$_));
1.10      www       206:            $idx++;
                    207:         }
                    208:         $r->print('</table>');
1.7       www       209:     }
                    210: }
1.1       www       211: 
1.8       www       212: # --------------------------------------------------------------- An entry line
                    213: 
                    214: sub entryline {
1.50      www       215:     my ($index,$title,$url,$folder,$allowed,$residx)=@_;
1.38      www       216:     $title=~s/\&colon\;/\:/g;
                    217:     $title=&HTML::Entities::encode(&HTML::Entities::decode(
                    218:      &Apache::lonnet::unescape($title)),'\"\<\>\&\'');
                    219:     my $renametitle=$title;
                    220:     my $foldertitle=$title;
                    221:     if ($title=~
                    222:  /^(\d+)\_\_\_\&amp\;\&amp\;\&amp\;\_\_\_(\w+)\_\_\_\&amp\;\&amp\;\&amp\;\_\_\_(\w+)\_\_\_\&amp\;\&amp\;\&amp\;\_\_\_(.*)$/
                    223: 	) { 
                    224:             $foldertitle=&Apache::lontexconvert::msgtexconverted($4);
                    225:             $renametitle=$4;
                    226:             $title='<i>'.localtime($1).'</i> '.
                    227:                 &Apache::loncommon::plainname($2,$3).': <br>'.
                    228: 		$foldertitle;
                    229: 	}
                    230:     $renametitle=~s/\&quot\;/\\\"/g;
1.8       www       231:     my $line='<tr>';
                    232: # Edit commands
                    233:     if ($allowed) {
                    234:        $line.=(<<END);
1.54    ! www       235: <td><table border='0' cellspacing='2' cellpadding='0'>
        !           236: <tr><td bgcolor="#DDDDDD">
        !           237: <a href='/adm/coursedocs?folder=$folder&cmd=up_$index'>
1.8       www       238: <img src="${iconpath}move_up.gif" alt='UP' border='0' /></a></td></tr>
1.54    ! www       239: <tr><td bgcolor="#DDDDDD">
        !           240: <a href='/adm/coursedocs?folder=$folder&cmd=down_$index'>
1.8       www       241: <img src="${iconpath}move_down.gif" alt='DOWN' border='0' /></a></td></tr>
1.54    ! www       242: </table></td><td bgcolor="#DDDDDD">
        !           243: <a href='javascript:removeres("$folder","$index","$renametitle");'>
        !           244: <font size="-2" color="#990000">Remove</font></a>
1.38      www       245: <a href='javascript:changename("$folder","$index","$renametitle");'>
1.54    ! www       246: <font size="-2" color="#009900">Rename</font></a></td>
1.8       www       247: END
                    248:     }
1.16      www       249: # Figure out what kind of a resource this is
                    250:     my ($extension)=($url=~/\.(\w+)$/);
                    251:     my $uploaded=($url=~/^\/*uploaded\//);
                    252:     my $icon='unknown';
                    253:     if (-e "/home/httpd/html/adm/lonIcons/$extension.gif") {
                    254: 	$icon=$extension;
1.10      www       255:     }
1.17      www       256:     my $isfolder=0;
1.16      www       257:     if ($uploaded) {
                    258:        if ($extension eq 'sequence') {
                    259: 	  $icon='folder_closed';
                    260:           $url=~/\/(\w+)\.sequence/;
                    261:           $url='/adm/coursedocs?folder='.$1;
1.17      www       262:           $isfolder=1;
1.16      www       263:        } else {
                    264: 	  $url=&Apache::lonnet::tokenwrapper($url);
                    265:        } 
                    266:     }
1.18      www       267:     $url=~s/^http\&colon\;\/\//\/adm\/wrapper\/ext\//;
1.50      www       268:     if ($residx) {
                    269:        $url.=(($url=~/\?/)?'&':'?').'symb='.
                    270:        &Apache::lonnet::escape(&Apache::lonnet::symbclean(
                    271:           &Apache::lonnet::declutter('uploaded/'.
                    272:            $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.'/'.
                    273:            $ENV{'course.'.$ENV{'request.course.id'}.'.num'}.'/'.$folder.
                    274:            '.sequence').
                    275:            '___'.$residx.'___'.
                    276: 	   &Apache::lonnet::declutter($url)));
                    277:     }
1.48      www       278:     if ($isfolder) { $url.='&foldername='.
                    279:        &Apache::lonnet::escape($foldertitle); }
1.23      www       280:     $line.='<td bgcolor="#FFFFBB"><a href="'.$url.'" target="cat_'.$folder.
                    281: '"><img src="/adm/lonIcons/'.
1.17      www       282:         $icon.'.gif" border="0"></a></td>'.
1.23      www       283:         "<td bgcolor='#FFFFBB'><a href='$url' target='cat_$folder'>$title</a></td></tr>";
1.8       www       284:     return $line;
                    285: }
                    286: 
1.27      www       287: # ---------------------------------------------------------------- tie the hash
                    288: 
                    289: sub tiehash {
                    290:     $hashtied=0;
                    291:     if ($ENV{'request.course.fn'}) {
                    292:         if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.".db",
                    293:             &GDBM_READER(),0640)) {
                    294:                 $hashtied=1;
                    295:         }
                    296:     }    
                    297: }
                    298: 
                    299: sub untiehash {
                    300:     if ($hashtied) { untie %hash; }
                    301:     $hashtied=0;
                    302: }
                    303: 
1.29      www       304: # --------------------------------------------------------------- check on this
                    305: 
                    306: sub checkonthis {
                    307:     my ($r,$url,$level,$title)=@_;
                    308:     $alreadyseen{$url}=1;
                    309:     $r->rflush();
1.41      www       310:     if (($url) && ($url!~/^\/uploaded\//) && ($url!~/\*$/)) {
1.29      www       311:        $r->print('<br />');
                    312:        for (my $i=0;$i<=$level*5;$i++) {
                    313:            $r->print('&nbsp;');
                    314:        }
                    315:        $r->print('<a href="'.$url.'" target="cat">'.
                    316: 		 ($title?$title:$url).'</a> ');
                    317:        if ($url=~/^\/res\//) {
                    318: 	  my $result=&Apache::lonnet::repcopy(
                    319:                               &Apache::lonnet::filelocation('',$url));
                    320:           if ($result==OK) {
                    321:              $r->print('<font color="green">ok</font>');
                    322:              $r->rflush();
1.34      www       323:              &Apache::lonnet::countacc($url);
                    324:              $url=~/\.(\w+)$/;
                    325:              if (&Apache::loncommon::fileembstyle($1) eq 'ssi') {
                    326: 		 $r->print('<br />');
                    327:                  $r->rflush();
                    328:                  for (my $i=0;$i<=$level*5;$i++) {
                    329:                      $r->print('&nbsp;');
                    330:                  }
                    331:                  $r->print('- Rendering: ');
                    332:                  &Apache::lonxml::xmlparse($r,'web',
                    333:                    &Apache::lonnet::getfile(
1.35      albertel  334:                     &Apache::lonnet::filelocation('',$url)));
1.34      www       335:                  if (($Apache::lonxml::errorcount) ||
                    336:                      ($Apache::lonxml::warningcount)) {
                    337: 		     if ($Apache::lonxml::errorcount) {
                    338:                         $r->print('<font color="red"><b>'.
                    339: 			  $Apache::lonxml::errorcount.' error(s)</b></font> ');
                    340:                      }
                    341: 		     if ($Apache::lonxml::warningcount) {
                    342:                         $r->print('<font color="blue">'.
                    343: 			  $Apache::lonxml::warningcount.' warning(s)</font>');
                    344:                      }
                    345:                  } else {
                    346:                      $r->print('<font color="green">ok</font>');
                    347:                  }
                    348:                  $r->rflush();
                    349:              }
1.29      www       350: 	     my $dependencies=
                    351:                 &Apache::lonnet::metadata($url,'dependencies');
                    352:              foreach (split(/\,/,$dependencies)) {
                    353: 		 if (($_=~/^\/res\//) && (!$alreadyseen{$_})) {
                    354:                     &checkonthis($r,$_,$level+1);
                    355:                  }
                    356:              }
                    357:           } elsif ($result==HTTP_SERVICE_UNAVAILABLE) {
                    358:              $r->print('<font color="red"><b>connection down</b></font>');
                    359:           } elsif ($result==HTTP_NOT_FOUND) {
                    360:              $r->print('<font color="red"><b>not found</b></font>');
                    361:           } else {
                    362:              $r->print('<font color="red"><b>access denied</b></font>');
                    363:           }
                    364:       }
                    365:    }
                    366: }
                    367: 
1.8       www       368: # ================================================================ Main Handler
1.1       www       369: sub handler {
                    370:     my $r = shift;
                    371:     $r->content_type('text/html');
                    372:     $r->send_http_header;
                    373:     return OK if $r->header_only;
                    374: 
1.47      www       375: # --------------------------------------------- Initialize help topics for this
                    376:   foreach ('Adding_Course_Doc','Main_Course_Documents',
                    377:            'Adding_External_Resource','Navigate_Content',
                    378:            'Adding_Folders','Docs_Overview',
                    379:            'Creating_From_Template','Supplemental',
                    380:            'Importing_LON-CAPA_Resource','Uploading_From_Harddrive') {
                    381:       $help{$_}=&Apache::loncommon::help_open_topic('Docs_'.$_);
                    382:   }
                    383: 
1.26      www       384:   if ($ENV{'form.verify'}) {
                    385:  
                    386:    my $loaderror=&Apache::lonnet::overloaderror($r);
                    387:    if ($loaderror) { return $loaderror; }
                    388: 
                    389:    $r->print('<html><head><title>Verify Content</title></head>'.
                    390:               &Apache::loncommon::bodytag('Verify Course Documents'));
1.27      www       391:    $hashtied=0;
1.30      www       392:    undef %alreadyseen;
                    393:    %alreadyseen=();
1.27      www       394:    &tiehash();
                    395:    foreach (keys %hash) {
1.28      www       396:        if (($_=~/^src\_(.+)$/) && (!$alreadyseen{$hash{$_}})) {
1.29      www       397:            &checkonthis($r,$hash{$_},0,$hash{'title_'.$1});
1.27      www       398:        }
                    399:    }
                    400:    &untiehash();
1.26      www       401:   } elsif ($ENV{'form.versions'}) {
                    402:     $r->print('<html><head><title>Check Versions</title></head>'.
                    403:               &Apache::loncommon::bodytag('Check Course Document Versions'));
1.27      www       404:    $hashtied=0;
                    405:    &tiehash();
1.30      www       406:    my %changes=&Apache::lonnet::dump
                    407:     ('versionupdate',$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    408:                      $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.31      www       409:    my $firstkey=(keys %changes)[0];
                    410:    unless ($firstkey=~/^error\:/) {
                    411:        unless ($ENV{'form.timerange'}) {
                    412: 	   $ENV{'form.timerange'}=604800;
                    413:        }
                    414:        my $seltext='during the last '.$ENV{'form.timerange'}.' seconds';
                    415:        my $startsel='';
                    416:        my $monthsel='';
                    417:        my $weeksel='';
                    418:        my $daysel='';
                    419:        if ($ENV{'form.timerange'}==-1) {
                    420: 	   $seltext='since start of course';
                    421:            $startsel='selected';
1.32      www       422:            $ENV{'form.timerange'}=time;
                    423:        }
                    424:        my $starttime=time-$ENV{'form.timerange'};
                    425:        if ($ENV{'form.timerange'}==2592000) {
                    426:            $seltext='during the last month ('.localtime($starttime).')';
1.31      www       427:            $monthsel='selected';
                    428:        } elsif ($ENV{'form.timerange'}==604800) {
1.32      www       429:            $seltext='during the last week ('.localtime($starttime).')';
1.31      www       430:            $weeksel='selected';
                    431:        } elsif ($ENV{'form.timerange'}==86400) {
1.32      www       432:            $seltext='since yesterday ('.localtime($starttime).')';
1.31      www       433:            $daysel='selected';
                    434:        }
1.32      www       435:  
1.31      www       436:        $r->print(<<ENDHEADERS);
                    437: <form action="/adm/coursedocs" method="post">
                    438: <select name="timerange">
                    439: <option value="-1" $startsel>Since Start of Course</option>
                    440: <option value="2592000" $monthsel>Last Month</option>
                    441: <option value="604800" $weeksel>Last Week</option>
                    442: <option value="86400" $daysel>Since Yesterday</option>
                    443: </select>
                    444: <input type="submit" name="versions" value="Display" />
                    445: </form>
1.32      www       446: <h3>Content changed $seltext</h3>
1.31      www       447: <table border="2">
                    448: <tr>
                    449: <th>File</th><th>Modification Date</th>
                    450: <th>Version</th><th>Differences</th></tr>
                    451: ENDHEADERS
                    452:        foreach (keys %changes) {
1.32      www       453: 	  if ($changes{$_}>$starttime) {
                    454: 	     my ($root,$extension)=($_=~/^(.*)\.(\w+)$/);
                    455:              my $currentversion=&Apache::lonnet::getversion($_);
                    456:              my $linkurl=&Apache::lonnet::clutter($_);
                    457:              $r->print(
                    458:                  '<tr><td><a href="'.$linkurl.'" target="cat">'.$linkurl.
                    459:                  '</a></td><td>'.
                    460:                  localtime($changes{$_}).'</td><td>'.$currentversion.'</td>'.
                    461: 		       '<td>');
                    462:              my $lastold=1;
                    463:              for (my $prevvers=1;$prevvers<$currentversion;$prevvers++) {
                    464:                  my $url=$root.'.'.$prevvers.'.'.$extension;
                    465:                  if (&Apache::lonnet::metadata($url,'lastrevisiondate')<
                    466:                                                              $starttime) {
                    467:                      $lastold=$prevvers;
                    468:                  }
                    469:              }
                    470:             for (my $prevvers=$lastold;$prevvers<$currentversion;$prevvers++) {
                    471:                  my $url=$root.'.'.$prevvers.'.'.$extension;
                    472:                  $r->print('<a href="'.&Apache::lonnet::clutter($url).
                    473:                    '">Version '.$prevvers.' ('.
                    474:                  localtime(&Apache::lonnet::metadata($url,'lastrevisiondate')).
1.33      www       475:                  ')</a>');
                    476:                  if (&Apache::loncommon::fileembstyle($extension) eq 'ssi') {
                    477:                     $r->print(' <a href="/adm/diff?filename='.
                    478:                             &Apache::lonnet::clutter($root.'.'.$extension).
                    479:                             '&versionone='.$prevvers.
                    480: 			     '">Diffs</a>');
                    481:                  }
                    482:                  $r->print('<br />');
1.32      www       483:              }
                    484:              $r->print('</td></tr>');
                    485:           }
1.31      www       486:        }
                    487:        $r->print('</table>');
                    488:    } else {
                    489:        $r->print('<p>No content modifications yet.</p>');
1.30      www       490:    }
1.27      www       491:    &untiehash();
1.26      www       492:   } else {
1.7       www       493: # is this a standard course?
                    494: 
                    495:     my $standard=($ENV{'request.course.uri'}=~/^\/uploaded\//);
1.15      www       496:     my $forcestandard;
                    497:     my $forcesupplement;
                    498:     my $script='';
                    499:     my $allowed;
                    500:     my $events='';
1.49      www       501:     my $buttons='';
1.19      www       502:     my $showdoc=0;
1.15      www       503:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.21      www       504:        ['folder','foldername']);
                    505:     if ($r->uri=~/^\/adm\/coursedocs\/showdoc\/(.*)$/) {
                    506:        $showdoc=$1;
                    507:     }
                    508:     unless ($showdoc) { # got called from remote
1.15      www       509:        $forcestandard=($ENV{'form.folder'}=~/^default_/);
                    510:        $forcesupplement=($ENV{'form.folder'}=~/^supplemental_/);
1.7       www       511: 
1.4       www       512: # does this user have privileges to post, etc?
1.15      www       513:        $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
                    514:        if ($allowed) { 
                    515:          &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['cmd']);
                    516:          $script=&Apache::lonratedt::editscript('simple'); 
                    517:        }
                    518:     } else { # got called in sequence from course
                    519:        $allowed=0;
1.49      www       520:        $script='</script>'.&Apache::lonmenu::registerurl(1,undef).'<script>';
                    521:        $events='onLoad="'.&Apache::lonmenu::loadevents.
                    522:            '" onUnload="'.&Apache::lonmenu::unloadevents.'"';
                    523:        $buttons=&Apache::lonmenu::menubuttons(1,undef);
1.3       www       524:     }
1.4       www       525: 
                    526: # get course data
                    527:     my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
                    528:     my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
                    529: 
1.14      www       530: # get personal data
                    531:  
                    532:     my $uname=$ENV{'user.name'};
                    533:     my $udom=$ENV{'user.domain'};
                    534:     my $plainname=&Apache::lonnet::escape(
                    535:                      &Apache::loncommon::plainname($uname,$udom));
                    536: 
1.8       www       537: # graphics settings
1.4       www       538: 
1.8       www       539:     $iconpath = $r->dir_config('lonIconsURL') . "/";
                    540: 
1.22      www       541:     my $now=time;
                    542: 
1.4       www       543: # print screen
1.1       www       544:     $r->print(<<ENDDOCUMENT);
                    545: <html>
                    546: <head>
                    547: <title>The LearningOnline Network with CAPA</title>
1.16      www       548: <script>
                    549: $script
1.20      www       550: </script>
1.19      www       551: ENDDOCUMENT
                    552:    if ($allowed) {
                    553:     $r->print(<<ENDNEWSCRIPT);
1.20      www       554: <script>
1.16      www       555: function makenewfolder(targetform,folderseq) {
                    556:     var foldername=prompt('Name of New Folder','New Folder');
                    557:     if (foldername) {
                    558: 	targetform.importdetail.value=foldername+"="+folderseq;
                    559:         targetform.submit();
                    560:     }
                    561: }
                    562: 
1.18      www       563: function makenewext(targetname) {
                    564:     this.document.forms.extimport.useform.value=targetname;
                    565:     window.open('/adm/rat/extpickframe.html');
                    566: }
                    567: 
1.22      www       568: function makesmppage() {
1.38      www       569:    var title=prompt('Listed Title for the Page');
                    570:    if (title) { 
1.22      www       571:     this.document.forms.newsmppg.importdetail.value=
                    572: 	title+'=/adm/$udom/$uname/$now/smppg';
                    573:     this.document.forms.newsmppg.submit();
1.38      www       574:    }
1.22      www       575: }
                    576: 
                    577: function makebulboard() {
1.38      www       578:    var title=prompt('Listed Title for the Bulletin Board');
                    579:    if (title) {
1.22      www       580:     this.document.forms.newbul.importdetail.value=
                    581: 	title+'=/adm/$udom/$uname/$now/bulletinboard';
                    582:     this.document.forms.newbul.submit();
1.38      www       583:    }
1.22      www       584: }
                    585: 
1.18      www       586: function finishpick() {
                    587:     var title=this.document.forms.extimport.title.value;
                    588:     var url=this.document.forms.extimport.url.value;
                    589:     var form=this.document.forms.extimport.useform.value;
                    590:     eval
                    591:      ('this.document.forms.'+form+'.importdetail.value="'+title+'='+url+
                    592:     '";this.document.forms.'+form+'.submit();');
1.16      www       593: }
1.36      www       594: 
                    595: function changename(folder,index,oldtitle) {
                    596:     var title=prompt('New Title',oldtitle);
                    597:     if (title) {
                    598: 	this.document.forms.renameform.title.value=title;
                    599: 	this.document.forms.renameform.cmd.value='rename_'+index;
1.54    ! www       600: 	this.document.forms.renameform.folder.value=folder;
        !           601:         this.document.forms.renameform.submit();
        !           602:     }
        !           603: }
        !           604: 
        !           605: function removeres(folder,index,oldtitle) {
        !           606:     if (confirm('Remove "'+oldtitle+'"?')) {
        !           607: 	this.document.forms.renameform.cmd.value='del_'+index;
1.36      www       608: 	this.document.forms.renameform.folder.value=folder;
                    609:         this.document.forms.renameform.submit();
                    610:     }
                    611: }
1.16      www       612: </script>
1.42      www       613: 
                    614: ENDNEWSCRIPT
                    615:   }
                    616: # -------------------------------------------------------------------- Body tag
                    617:   $r->print('</head>'.
1.49      www       618:             &Apache::loncommon::bodytag('Course Documents','',$events).
                    619:             $buttons);
1.42      www       620:   unless ($showdoc) {
                    621:     if ($allowed) {
1.47      www       622:        $r->print(&Apache::loncommon::help_open_topic('Docs_Adding_Course_Doc',
                    623: 		     'Editing the Table of Contents for your Course'));
1.42      www       624:        $r->print(<<ENDCOURSEVERIFY);
1.36      www       625: <form name="renameform" method="post" action="/adm/coursedocs">
                    626: <input type="hidden" name="title" />
                    627: <input type="hidden" name="cmd" />
                    628: <input type="hidden" name="folder" />
                    629: </form>
1.39      www       630: <form name="simpleedit" method="post" action="/adm/coursedocs">
                    631: <input type=hidden name="importdetail" value="">
                    632: <input type="hidden" name="folder" />
                    633: </form>
1.26      www       634: <form action="/adm/coursedocs" method="post" name="courseverify">
1.25      www       635: <input type="submit" name="verify" value="Verify Content" />
                    636: <input type="submit" name="versions" value="Check Resource Versions" />
                    637: </form>
                    638: ENDCOURSEVERIFY
                    639:     }
1.17      www       640: # --------------------------------------------------------- Standard documents
1.43      www       641:     $r->print('<table border=2 cellspacing=4 cellpadding=4>');
1.7       www       642:     if (($standard) && ($allowed) && (!$forcesupplement)) {
1.47      www       643:        $r->print('<tr><td bgcolor="#BBBBBB"><h2>Main Course Documents'.
                    644:   ($allowed?' '.$help{'Main_Course_Documents'}:'').'</h2>');
1.7       www       645:        my $folder=$ENV{'form.folder'};
1.10      www       646:        unless ($folder=~/^default/) { $folder='default'; }
1.51      www       647:        my $postexec='';
                    648:        if ($folder eq 'default') {
                    649: 	   $r->print('<script>this.window.name="loncapaclient";</script>');
                    650:        } else {
                    651:            $postexec='self.close();';
                    652:        }
1.40      www       653:        $hadchanges=0;
1.7       www       654:        &editor($r,$coursenum,$coursedom,$folder,$allowed);
1.40      www       655:        if ($hadchanges) {
1.51      www       656: 	   $r->print(
                    657: '<script>function reinit(tf) { tf.submit();'.$postexec.' }</script>'. 
                    658: '<form method="post" action="/adm/roles" target="loncapaclient">'.
                    659: '<input type="hidden" name="orgurl" value="/adm/coursedocs" /><input type="hidden" name="selectrole" value="1" /><h3><font color="red">Changes will become active for your current session after <input type="hidden" name="'.
                    660: $ENV{'request.role'}.'" value="1" /><input type="button" value="re-initializing course" onClick="reinit(this.form)"/>, or the next time you log in.</font></h3></form>');
1.40      www       661:        }
1.16      www       662:        my $folderseq='/uploaded/'.$coursedom.'/'.$coursenum.'/default_'.time.
                    663:                      '.sequence';
1.47      www       664: 
1.8       www       665:        $r->print(<<ENDFORM);
1.43      www       666: <table cellspacing=4 cellpadding=4><tr>
1.16      www       667: <th bgcolor="#DDDDDD">Upload a new main course document</th>
                    668: <th bgcolor="#DDDDDD">Import a published document</th>
                    669: <th bgcolor="#DDDDDD">Special documents</th>
1.11      www       670: </tr>
1.16      www       671: <tr><td bgcolor="#DDDDDD">
1.11      www       672: File:<br />
1.10      www       673: <form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
1.8       www       674: <input type="file" name="uploaddoc" size="50">
                    675: <br />
1.11      www       676: Title:<br /> 
                    677: <input type="text" size="50" name="comment">
1.8       www       678: <input type="hidden" name="folder" value="$folder">
1.17      www       679: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
1.10      www       680: <input type="hidden" name="cmd" value="upload_default">
1.8       www       681: <input type="submit" value="Upload Document">
1.47      www       682:  $help{'Uploading_From_Harddrive'}</form>
1.11      www       683: </td>
1.16      www       684: <td bgcolor="#DDDDDD">
1.39      www       685: <form action="/adm/coursedocs" method="post" name="simpleeditdefault">
1.53      www       686: <input type="hidden" name="folder" value="$folder">
                    687: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
1.11      www       688: <input type=button onClick=
1.39      www       689: "javascript:document.forms.simpleedit.folder.value='$folder';groupsearch()" value="Search">
1.11      www       690: <input type=button onClick=
1.39      www       691: "javascript:document.forms.simpleedit.folder.value='$folder';groupimport();" value="Import">
1.52      www       692: $help{'Importing_LON-CAPA_Resource'}<br />
                    693: <input type="text" size="20" name="importmap">
                    694: <input type=button 
                    695: onClick="javascript:openbrowser('simpleeditdefault','importmap','sequence,page','')"
                    696: value="Browse"><input type="submit" name="loadmap" value="Load Map">
                    697: </form>
1.16      www       698: </td><td bgcolor="#DDDDDD">
1.11      www       699: <form action="/adm/coursedocs" method="post" name="newfolder">
1.16      www       700: <input type="hidden" name="folder" value="$folder">
1.17      www       701: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
1.13      www       702: <input type=hidden name="importdetail" value="">
1.16      www       703: <input name="newfolder" type="button"
                    704: onClick="javascript:makenewfolder(this.form,'$folderseq');"
1.47      www       705: value="New Folder" /> $help{'Adding_Folders'}
1.11      www       706: </form>
                    707: <form action="/adm/coursedocs" method="post" name="newext">
1.16      www       708: <input type="hidden" name="folder" value="$folder">
1.17      www       709: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
1.13      www       710: <input type=hidden name="importdetail" value="">
1.18      www       711: <input name="newext" type="button" onClick="javascript:makenewext('newext');"
1.47      www       712: value="External Resource" /> $help{'Adding_External_Resource'}
1.11      www       713: </form>
                    714: <form action="/adm/coursedocs" method="post" name="newsyl">
1.16      www       715: <input type="hidden" name="folder" value="$folder">
1.17      www       716: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
1.14      www       717: <input type=hidden name="importdetail" 
                    718: value="Syllabus=/public/$coursedom/$coursenum/syllabus">
1.47      www       719: <input name="newsyl" type="submit" value="Syllabus" /> 
                    720:  $help{'Creating_From_Template'}</form>
1.17      www       721: <form action="/adm/coursedocs" method="post" name="newnav">
1.20      www       722: <input type="hidden" name="folder" value="$folder">
                    723: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
1.15      www       724: <input type=hidden name="importdetail" 
                    725: value="Navigate Content=/adm/navmaps">
1.20      www       726: <input name="newnav" type="submit" value="Navigate Content" />
1.47      www       727: $help{'Navigate_Content'}
1.22      www       728: </form>
                    729: <form action="/adm/coursedocs" method="post" name="newsmppg">
                    730: <input type="hidden" name="folder" value="$folder">
                    731: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
                    732: <input type=hidden name="importdetail" value="">
                    733: <input name="newsmppg" type="button" value="Simple Page"
1.47      www       734: onClick="javascript:makesmppage();" /> $help{'Creating_From_Template'}
1.22      www       735: </form>
                    736: <form action="/adm/coursedocs" method="post" name="newbul">
                    737: <input type="hidden" name="folder" value="$folder">
                    738: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
                    739: <input type=hidden name="importdetail" value="">
                    740: <input name="newbulletin" type="button" value="Bulletin Board"
                    741: onClick="javascript:makebulboard();" />
1.47      www       742: $help{'Creating_From_Template'}</form>
1.12      www       743: <form action="/adm/coursedocs" method="post" name="newaboutme">
1.16      www       744: <input type="hidden" name="folder" value="$folder">
1.17      www       745: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
1.14      www       746: <input type=hidden name="importdetail" 
                    747: value="$plainname=/adm/$udom/$uname/aboutme">
1.16      www       748: <input name="newaboutme" type="submit" value="My Personal Info" />
1.47      www       749: $help{'Creating_From_Template'}</form>
1.11      www       750: </td></tr>
                    751: </table>
1.8       www       752: ENDFORM
1.24      www       753:        $r->print('</td></tr>');
1.7       www       754:     }
                    755: # ----------------------------------------------------- Supplemental documents
                    756:     if (!$forcestandard) {
1.24      www       757:        $r->print(
1.47      www       758:   '<tr><td bgcolor="#BBBBBB"><h2>Supplemental Course Documents'.
                    759:   ($allowed?' '.$help{'Supplemental'}:'').'</h2>');
1.7       www       760:        my $folder=$ENV{'form.folder'};
1.10      www       761:        unless ($folder=~/supplemental/) { $folder='supplemental'; }
1.7       www       762:        &editor($r,$coursenum,$coursedom,$folder,$allowed);
1.8       www       763:        if ($allowed) {
1.17      www       764:        my $folderseq=
                    765:                   '/uploaded/'.$coursedom.'/'.$coursenum.'/supplemental_'.time.
                    766:                      '.sequence';
                    767: 
1.8       www       768:           $r->print(<<ENDSUPFORM);
1.43      www       769: <table cellspacing=4 cellpadding=4><tr>
1.17      www       770: <th bgcolor="#DDDDDD">Upload a new supplemental course document</th>
                    771: <th bgcolor="#DDDDDD">Import a published document</th>
                    772: <th bgcolor="#DDDDDD">Special documents</th>
                    773: </tr>
                    774: <tr><td bgcolor="#DDDDDD">
1.10      www       775: <form action="/adm/coursedocs" method="post" enctype="multipart/form-data">
1.4       www       776: <input type="file" name="uploaddoc" size="50">
                    777: <br />Comment:<br />
                    778: <textarea cols=50 rows=4 name='comment'>
                    779: </textarea>
1.8       www       780: <input type="hidden" name="folder" value="$folder">
1.17      www       781: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
1.10      www       782: <input type="hidden" name="cmd" value="upload_supplemental">
1.3       www       783: <input type="submit" value="Upload Document">
1.47      www       784:  $help{'Uploading_From_Harddrive'}</form>
1.17      www       785: </td>
                    786: <td bgcolor="#DDDDDD">
1.39      www       787: <form action="/adm/coursedocs" method="post" name="simpleeditsupplement">
1.53      www       788: <input type="hidden" name="folder" value="$folder">
                    789: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
1.17      www       790: <input type=hidden name="importdetail" value="">
                    791: <input type=button onClick=
1.39      www       792: "javascript:document.forms.simpleedit.folder.value='$folder';groupsearch()" value="Search">
1.17      www       793: <input type=button onClick=
1.47      www       794: "javascript:document.forms.simpleedit.folder.value='$folder';groupimport();" value="Import">$help{'Importing_LON-CAPA_Resource'}
1.53      www       795: <br />
                    796: <input type="text" size="20" name="importmap">
                    797: <input type=button 
                    798: onClick="javascript:openbrowser('simpleeditsupplement','importmap','sequence,page','')"
                    799: value="Browse"><input type="submit" name="loadmap" value="Load Map">
1.17      www       800: </form>
                    801: </td><td bgcolor="#DDDDDD">
1.18      www       802: <form action="/adm/coursedocs" method="post" name="supnewfolder">
1.17      www       803: <input type="hidden" name="folder" value="$folder">
                    804: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
                    805: <input type=hidden name="importdetail" value="">
                    806: <input name="newfolder" type="button"
                    807: onClick="javascript:makenewfolder(this.form,'$folderseq');"
1.47      www       808: value="New Folder" /> $help{'Adding_Folders'}
1.17      www       809: </form>
1.18      www       810: <form action="/adm/coursedocs" method="post" name="supnewext">
1.17      www       811: <input type="hidden" name="folder" value="$folder">
                    812: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
                    813: <input type=hidden name="importdetail" value="">
1.18      www       814: <input name="newext" type="button" 
                    815: onClick="javascript:makenewext('supnewext');"
1.47      www       816: value="External Resource" /> $help{'Adding_External_Resource'}
1.17      www       817: </form>
1.18      www       818: <form action="/adm/coursedocs" method="post" name="supnewsyl">
1.17      www       819: <input type="hidden" name="folder" value="$folder">
                    820: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
                    821: <input type=hidden name="importdetail" 
                    822: value="Syllabus=/public/$coursedom/$coursenum/syllabus">
                    823: <input name="newsyl" type="submit" value="Syllabus" />
1.47      www       824: $help{'Creating_From_Template'}</form>
1.18      www       825: <form action="/adm/coursedocs" method="post" name="subnewaboutme">
1.17      www       826: <input type="hidden" name="folder" value="$folder">
                    827: <input type="hidden" name="foldername" value="$ENV{'form.foldername'}">
                    828: <input type=hidden name="importdetail" 
                    829: value="$plainname=/adm/$udom/$uname/aboutme">
                    830: <input name="newaboutme" type="submit" value="My Personal Info" />
1.47      www       831: $help{'Creating_From_Template'}</form>
1.17      www       832: </td></tr>
1.24      www       833: </table></td></tr>
1.8       www       834: ENDSUPFORM
                    835:        }
1.7       www       836:     }
1.18      www       837:     if ($allowed) {
                    838: 	$r->print('<form name="extimport"><input type="hidden" name="title"><input type="hidden" name="url"><input type="hidden" name="useform"></form>');
                    839:     }
1.24      www       840:     $r->print('</table>');
1.19      www       841:   } else {
                    842: # -------------------------------------------------------- This is showdoc mode
                    843:       $r->print("<h1>Uploaded Document</h1><p>It is recommended that you use an up-to-date virus scanner before handling this file.</p><p><table>".
1.21      www       844:          &entryline(0,"Click to download or use your browser's Save Link function",$showdoc).'</table></p>');
1.19      www       845:   }
1.26      www       846:  }
                    847:  $r->print('</body></html>');
                    848:  return OK;
1.1       www       849: } 
                    850: 
                    851: 1;
                    852: __END__

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