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Up to [LON-CAPA] / loncom / publisher

Fix bugs #3640, 3631, 3630, 3628.  Menu buttons eliminated when viewing directories in iCSTR in remoteless mode. Directory position and selection now directly below top menu bar. Directory location larger font, headings for directory options (remoteless only) smaller font. Certain directory actions directed to top, (to escape frame), to avoid nesting frames.

    1: # The LearningOnline Network with CAPA
    2: # Construction Space Directory Lister
    3: #
    4: # $Id: lonpubdir.pm,v 1.66 2004/11/30 19:08:18 raeburn 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: 
   30: package Apache::lonpubdir;
   31: 
   32: use strict;
   33: use Apache::File;
   34: use File::Copy;
   35: use Apache::Constants qw(:common :http :methods);
   36: use Apache::loncacc;
   37: use Apache::loncommon();
   38: use Apache::lonhtmlcommon();
   39: use Apache::lonlocal;
   40: use Apache::lonmsg;
   41: use Apache::lonmenu;
   42: use Apache::lonnet;
   43: 
   44: sub handler {
   45: 
   46:   my $r=shift;
   47: 
   48:   my $fn;
   49: 
   50: 
   51: 
   52:   $fn = getEffectiveUrl($r);
   53: 
   54:   # Validate access to the construction space and get username@domain.
   55: 
   56:   my $uname;
   57:   my $udom;
   58: 
   59:   ($uname,$udom)=
   60:     &Apache::loncacc::constructaccess(
   61:              $fn,$r->dir_config('lonDefDomain')); 
   62:   unless (($uname) && ($udom)) {
   63:      $r->log_reason($uname.' at '.$udom.
   64:          ' trying to list directory '.$ENV{'form.filename'}.
   65:          ' ('.$fn.') - not authorized', 
   66:          $r->filename); 
   67:      return HTTP_NOT_ACCEPTABLE;
   68:   }
   69: 
   70:   # Remove trailing / from directory name.
   71: 
   72:   $fn=~s/\/$//;
   73: 
   74:   unless ($fn) { 
   75:      $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
   76:          ' trying to list empty directory', $r->filename); 
   77:      return HTTP_NOT_FOUND;
   78:   } 
   79: 
   80: # ----------------------------------------------------------- Start page output
   81: 
   82:   my $thisdisfn=$fn;
   83:   $thisdisfn=~s/^\/home\/$uname\/public_html//;	# subdirectory part of
   84:                                                 # construction space. 
   85:   my $docroot=$r->dir_config('lonDocRoot');     # Apache  londocument root.
   86: 
   87:   my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$thisdisfn; # Resource directory
   88:   my $targetdir=$udom.'/'.$uname.$thisdisfn; # Publiction target directory.
   89:   my $linkdir='/priv/'.$uname.$thisdisfn;      # Full URL name of constr space.
   90: 
   91:   my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
   92: 
   93:   &startpage($r, $uname, $udom, $thisdisfn);   # Put out the start of page.
   94:   if ($ENV{'environment.remote'} eq 'off') {
   95:       &dircontrols($r,$uname,$udom,$thisdisfn);    # Put out actions for directory, 
   96:                                                # browse/upload + new file page.
   97:   }
   98:   &resourceactions($r,$uname,$udom,$thisdisfn); #Put out form used for printing/deletion etc.
   99: 
  100:   my $numdir = 0;
  101:   my $numres = 0;
  102:   
  103:   # Start off the directory table.
  104:   $r->print('<h3>Directory Contents:</h3>');
  105:   $r->print('<table border="0" cellspacing="2" cellpadding="2"><tr>'.
  106:             '<th bgcolor="#DDDDDD">'.&mt('Type').'</th>'.
  107:             '<th bgcolor="#DDDDDD">'.&mt('Actions').'</th>'.
  108:             '<th bgcolor="#DDDDDD">'.&mt('Name').'</th>'.
  109:             '<th bgcolor="#DDDDDD">'.&mt('Title').'</th>'.
  110: 	    '<th bgcolor="#DDDDDD">'.&mt('Status').'</th>'.
  111:             '<th bgcolor="#DDDDDD">'.&mt('Last Modified').
  112: 	    '</th></tr>');
  113: 
  114:   my $filename;
  115:   my $dirptr=16384;		# Mask indicating a directory in stat.cmode.
  116: 
  117:   opendir(DIR,$fn);
  118:   my @files=sort {uc($a) cmp uc($b)} (readdir(DIR));
  119:   foreach my $filename (@files) {
  120:      my ($cdev,$cino,$cmode,$cnlink,
  121:          $cuid,$cgid,$crdev,$csize,
  122:          $catime,$cmtime,$cctime,
  123:          $cblksize,$cblocks)=stat($fn.'/'.$filename);
  124: 
  125:      my $extension='';
  126:      if ($filename=~/\.(\w+)$/) { $extension=$1; }
  127:      if ($cmode&$dirptr) {
  128: 	 putdirectory($r, $thisdisfn, $linkdir, $filename, $cmtime,$targetdir,\%bombs,\$numdir);
  129:      } elsif (&Apache::loncommon::fileembstyle($extension) ne 'hdn') {
  130: 	 putresource($r, $udom, $uname, $filename, $thisdisfn, $resdir, 
  131: 		     $targetdir, $linkdir, $cmtime,\%bombs,\$numres);
  132:      } else {
  133: 	# "hidden" extension and not a directory, so hide it away.
  134:      }
  135:   }
  136:   closedir(DIR);
  137: 
  138:   $r->print('</table></body></html>');
  139:   return OK;  
  140: }
  141: #
  142: #  Gets the effective URL of the request and returns it:
  143: #    $effn = getEffectiveUrl($r);
  144: #       $r  - The Apache Request object.
  145: sub getEffectiveUrl {
  146:     my $r = shift;
  147:     my $fn;
  148:     
  149:     if ($ENV{'form.filename'}) {	# If a form filename is defined.
  150: 	$fn=$ENV{'form.filename'};
  151: 	#
  152: 	#   Replace the ~username of the URL with /home/username/public_html
  153: 	#   so that we don't have to worry about ~ expansion internally.
  154: 	#
  155: 	$fn=~s/^http\:\/\/[^\/]+\///;
  156:         $fn=~s/^\///;
  157:         $fn=~s/\~(\w+)/\/home\/$1\/public_html/;
  158: 	
  159: 	#  Remove trailing / strings (?) 
  160: 	
  161: 	$fn=~s/\/[^\/]+$//;
  162:     } else {
  163: 	#   If no form is defined, use request filename.
  164: 	$fn = $r->filename();
  165: 	my $lonDocRoot=$r->dir_config('lonDocRoot');
  166: 	if ( $fn =~ /$lonDocRoot/ ) {
  167: 	    #internal authentication, needs fixup.
  168: 	    $fn = $r->uri(); # non users do not get the full path request
  169:                              # through SCRIPT_FILENAME
  170: 	    $fn=~s|^/~(\w+)|/home/$1/public_html|;
  171: 	}
  172:     }
  173:     $fn=~s/\/+/\//g;
  174:     return $fn;
  175: }
  176: #
  177: #   Output the header of the page.  This includes:
  178: #   - The HTML header 
  179: #   - The H1/H3  stuff which includes the directory.
  180: #
  181: #     startpage($r, $uame, $udom, $thisdisfn);
  182: #      $r     - The apache request object.
  183: #      $uname - User name.
  184: #      $udom  - Domain name the user is logged in under.
  185: #      $thisdisfn - Displayable version of the filename.
  186: 
  187: sub startpage {
  188:     my ($r, $uname, $udom, $thisdisfn) = @_;
  189:     my $currdir = '/priv/'.$uname.$thisdisfn;
  190:     &Apache::loncommon::content_type($r,'text/html');
  191:     $r->send_http_header;
  192: 
  193:     $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
  194: 
  195:     my $pagetitle;
  196:     my $formaction='/priv/'.$uname.'/'.$thisdisfn.'/';
  197:     $formaction=~s/\/+/\//g;
  198:     $pagetitle .= &Apache::loncommon::help_open_menu('','','','',3,'Authoring').
  199:         '<font face="Arial, Helvetica, sans-serif"><b>Construction Space</b>:</font>&nbsp;'.
  200:         '<form name="dirs" method="post" action="'.$formaction.
  201:         '" target="_parent">'.
  202:         &Apache::lonhtmlcommon::crumbs($uname.'/'.$thisdisfn.'/','_top','/priv','','+1').
  203:         &Apache::lonhtmlcommon::select_recent('construct','recent',
  204:                  'this.form.action=this.form.recent.value;this.form.submit()').
  205:               '</form>';
  206:     &Apache::lonhtmlcommon::store_recent('construct',$formaction,$formaction);
  207:     if ($ENV{'environment.remote'} eq 'off') {
  208: 	$ENV{'request.noversionuri'}=$currdir;
  209: 	$r->print(&Apache::loncommon::bodytag('Construction Space',undef,undef,undef,undef,undef,$pagetitle));
  210:     } else {
  211: 	$r->print($pagetitle);
  212:     }
  213:     my $pubdirscript=(<<ENDPUBDIRSCRIPT);
  214: <script>
  215: // Store directory location for menu bar to find
  216: 
  217: parent.lastknownpriv='/~$uname/$thisdisfn/';
  218: 
  219: // Confirmation dialogues
  220: 
  221:     function currdiract(theform) {
  222:         if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'publish') {
  223:             document.publishdir.filename.value = theform.filename.value
  224:             pubdir(document.publishdir)
  225:         }
  226:         if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'publishsub') {
  227:             document.publishdir.filename.value = theform.filename.value
  228:             pubrecdir(document.publishdir)
  229:         }
  230:         if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'editcat') {
  231:             top.location=theform.filename.value+'default.meta'
  232:         }
  233:         if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'printdir' ) {
  234:             document.printdir.postdata.value=theform.filename.value
  235:             document.printdir.submit();
  236:         }
  237:     }
  238:   
  239:     function pubdir(theform) {
  240: 	if (confirm('Publish complete directory?')) {
  241:             forcepub(theform)
  242: 	    theform.submit();
  243:         }
  244:     }
  245:     function pubrecdir(theform) {
  246: 	if (confirm('Publish directory and all subdirectories?')) {
  247:             forcepub(theform);
  248:             theform.pubrec.value='1';
  249: 	    theform.submit();
  250:         }
  251:     }
  252: 
  253:     function forcepub(theform) {
  254:         if (confirm('Force publication of unmodified files? - OK=yes; Cancel=No.')) {
  255:             theform.forcerepub.value="ON";
  256:         } 
  257:     }
  258: 
  259:     function checkUpload(theform) {
  260:         if (theform.file == '') {
  261:             alert("Please use 'Browse..' to choose a file first, before uploading")
  262:             return 
  263:         }
  264:         theform.submit()  
  265:     }
  266: 
  267:     function SetPubDir(theform,printForm) {
  268:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "open") {
  269:             top.location = theform.filename.value
  270:             return
  271:         }
  272:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "publish") {
  273:             pubdir(theform)
  274:         }
  275:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "publishsub") {
  276:             pubrecdir(theform)
  277:         }
  278:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "editcat") {
  279:             top.location=theform.filename.value+'default.meta'
  280:         }
  281:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "print") {
  282:             theform.action = '/adm/printout'
  283:             theform.postdata.value = theform.filename.value
  284:             theform.submit()
  285:         }
  286:         return
  287:     }
  288:     function SetResChoice(theform) {
  289:       var activity = theform.reschoice.options[theform.reschoice.selectedIndex].value
  290:       if ((activity == 'rename') || (activity == 'copy') || (activity == 'move')) {
  291:           changename(theform,activity)
  292:       }
  293:       if (activity == 'publish') {
  294:           var pubform = document.pubresource
  295:           pubform.filename.value = theform.filename.value
  296:           pubform.submit()
  297:       }
  298:       if (activity == 'delete') {
  299:           var delform = document.delresource
  300:           delform.filename.value = theform.filename.value
  301:           if (confirm("Are you sure you want to delete "+theform.filename.value+"?")) {
  302:               delform.submit()
  303:           }
  304:       }
  305:       if (activity == 'obsolete') {
  306:           alert("Mark as obsolete - still to be implemented") 
  307:       }
  308:       if (activity == 'print') {
  309:           document.printresource.postdata = theform.filename.value
  310:           document.printresource.curseed = getcurseed()
  311:           document.printresource.problemtype = getproblemtype()
  312:           document.printresource.submit()
  313:       }
  314:       if (activity == 'retrieve') {
  315:           retrieveres.filename.value = theform.filename.value
  316:           retrieveres.submit()
  317:       }
  318:       return
  319:     }
  320:     function changename(theform,activity) {
  321:         var newname=prompt('New Name');
  322:         if (newname == "" || !newname)  {
  323:             return
  324:         }
  325:         document.moveresource.newfilename.value = newname
  326:         document.moveresource.filename.value = theform.filename.value
  327:         document.moveresource.action.value = activity
  328:         document.moveresource.submit();
  329:     }
  330: 
  331:     function getcurseed() {
  332:       if (parent.document.lonhomework
  333:            &&
  334:           parent.document.lonhomework.rndseed
  335:            &&
  336:           parent.document.lonhomework.rndseed.value) {
  337:               return parent.document.lonhomework.rndseed.value;
  338:       }
  339:       return 0;
  340:     }
  341:                                                                                                       
  342:     function getproblemtype() {
  343:         if (parent.document.lonhomework) {
  344:             var optionelement;
  345:             var valueIndex=0;
  346:             for (var optionIndex=0;
  347:                 optionIndex < parent.document.lonhomework.problemtype.options.length;
  348:                 optionIndex++)
  349:             {
  350:                 optionElement=parent.document.lonhomework.problemtype.options[optionIndex];
  351:                 if (optionElement.selected) {
  352:                     return optionElement.value;
  353:                 }
  354:             }
  355:         }
  356:         return 0;
  357:     }
  358: </script>
  359: ENDPUBDIRSCRIPT
  360:     $r->print($pubdirscript);
  361: 
  362:     if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
  363: 	$r->print('<h3>'.&mt('Co-Author').': '.$uname.' at '.$udom.
  364: 		  '</h3>');
  365:     }
  366: }
  367: 
  368: sub dircontrols {
  369:     my ($r,$uname,$udom,$thisdisfn) = @_;
  370:     $r->print(<<END);
  371:         <table cellspacing="4" cellpadding="4" width="100%">
  372:          <tr>
  373:           <td bgcolor="#DDDDDD" align="middle"><b>Actions for current directory</b></td>
  374:           <td bgcolor="#DDDDDD" align="middle"><b>Upload a new document</b></td>
  375:           <td bgcolor="#DDDDDD" align="middle"><b>Create a new directory or LON-CAPA document</b></td>
  376:         </tr>
  377:         <tr>
  378:          <td bgcolor="#ccddaa" valign="top" align="center">
  379:           <form name="curractions" method="post" action="">
  380:            <select name="dirtask" onChange="currdiract(this.form)">
  381:             <option>Select action</option>
  382:             <option value="publish">Publish directory</option>
  383:             <option value="publishsub">Publish with subdirectories</option>
  384:             <option value="editcat">Edit catalog information</option>
  385:             <option value="printdir">Print contents of directory</option>
  386:            </select>
  387:            <input type="hidden" name="filename" value="/~$uname$thisdisfn/" />
  388:           </form>
  389:           <form name="publishdir" method="post" action="/adm/publish" target="_parent">
  390:            <input type="hidden" name="pubrec" value="" />
  391:            <input type="hidden" name="filename" value="" />
  392:            <input type="hidden" name="forcerepub" value="NO" />
  393:           </form>
  394:           <form name="printdir" method="post" action="/adm/printout" target="_parent">
  395:            <input type="hidden" name="postdata" value="" />
  396:            <input type="hidden" name="curseed" value="0" />
  397:            <input type="hidden" name="problemtype" value="0" />
  398:           </form>
  399:          </td>
  400:          <td bgcolor="#ccddaa" valign="top" align="center">
  401: 	    <form name="upublisher" enctype="multipart/form-data" method="post" action="/adm/upload" target="_parent">
  402: 	      <input type="hidden" name="filename" value="/~$uname$thisdisfn/" />
  403: 	      <input type="file" name="upfile" size="20" />
  404: 	      <input type="button" value="Upload file"  onclick="checkUpload(this.form)" />
  405: 	    </form>
  406: 	 </td>
  407: 	 <td bgcolor="#ccddaa" align="center">
  408: 	    <form name="fileaction" method="post" action="/adm/cfile" target="_parent">
  409: 	      <nobr>
  410: 		<input type="hidden" name="filename" value="/~$uname$thisdisfn/" />
  411: 		  <select name="action">
  412: 		    <option>Select action</option>
  413: 		    <option value="newfile">New file:</option>
  414: 		    <option value="newhtmlfile">New HTML file:</option>
  415: 		    <option value="newproblemfile">New problem:</option>
  416:                     <option value="newpagefile">New assembled page:</option>
  417:                     <option value="newsequencefile">New assembled sequence:</option>
  418:                     <option value="newrightsfile">New custom rights file:</option>
  419:                     <option value="newstyfile">New style file:</option>
  420: 		    <option value="newdir">New subdirectory:</option>
  421: 		  </select>&nbsp;<input type="text" name="newfilename" value="Type Name Here" onfocus="if (this.value == 'Type Name Here') this.value=''" />&nbsp;<input type="button" value="Go" onclick="document.fileaction.submit()" />
  422: 		 </nobr>
  423: 		</form>
  424: 	  </td>
  425:          </tr>
  426:         </table>
  427:         <br />
  428:         <br />
  429: END
  430: }
  431: 
  432: sub resourceactions {
  433:     my ($r,$uname,$udom,$thisdisfn) = @_;
  434:     $r->print(<<END);
  435:        <form name="moveresource" action="/adm/cfile" target="_parent" method="post">
  436:          <input type="hidden" name="filename" value="" />
  437:          <input type="hidden" name="newfilename" value="" />
  438:          <input type="hidden" name="action" value="" />
  439:        </form>
  440:        <form name="delresource" action="/adm/cfile" target="_parent" method="post">
  441:          <input type="hidden" name="filename" value="" />
  442:          <input type="hidden" name="action" value="delete" />
  443:        </form>
  444:        <form name="pubresource" action="/adm/publish" target="_parent" method="post">
  445:          <input type="hidden" name="pubrec" value="" />
  446:          <input type="hidden" name="filename" value="" />
  447:          <input type="hidden" name="forcerepub" value="NO" />
  448:        </form>
  449:        <form name="printresource" action="/adm/printout" target="_parent" method="post">
  450:            <input type="hidden" name="postdata" value="" />
  451:            <input type="hidden" name="curseed" value="" />
  452:            <input type="hidden" name="problemtype" value="" />
  453:        </form>
  454:        <form name="retrieveres" action="/adm/retrieve" target="_parent" method="post">
  455:            <input type="hidden" name="filename" value="" />
  456:        </form>
  457: END
  458: }
  459: 
  460: #
  461: #   Get the title string or "[untitled]" if the file has no title metadata:
  462: #   Without the latter substitution, it's impossible to examine metadata for
  463: #   untitled resources.  Resources may be legitimately untitled, to prevent
  464: #   searches from locating them.
  465: #
  466: #   $str = getTitleString($fullname);
  467: #       $fullname - Fully qualified filename to check.
  468: #
  469: sub getTitleString {
  470:     my $fullname = shift;
  471:     my $title    = &Apache::lonnet::metadata($fullname, 'title');
  472: 
  473:     unless ($title) {
  474: 	$title = "[".&mt('untitled')."]";
  475:     }
  476:     return $title;
  477: }
  478: 
  479: sub getCopyRightString {
  480:     my $fullname = shift;
  481:     return &Apache::lonnet::metadata($fullname, 'copyright');
  482: }
  483: 
  484: sub getSourceRightString {
  485:     my $fullname = shift;
  486:     return &Apache::lonnet::metadata($fullname, 'sourceavail');
  487: }
  488: #
  489: #  Put out a directory table row:
  490: #    putdirectory(r, base, here, dirname, modtime)
  491: #      r       - Apache request object.
  492: #      reqfile - File in request.
  493: #      here    - Where we are in directory tree.
  494: #      dirname - Name of directory special file.
  495: #      modtime - Encoded modification time.
  496: # 
  497: sub putdirectory {
  498:     my ($r, $reqfile, $here, $dirname, $modtime, $resdir, $bombs, $numdir) = @_;
  499:     # construct the display filename: the directory name unless ..:
  500:     
  501:     my $disfilename = $dirname;
  502:     if ($dirname eq '..') {
  503: 	$disfilename = '<i>'.&mt('Parent Directory').'</i>';
  504:     }
  505:     unless ( (($dirname eq '..') && ($reqfile eq '')) || ($dirname eq '.')) {
  506: 	my $kaputt=0;
  507: 	foreach (keys %{$bombs}) {
  508: 	    if ($_=~m:^\Q$resdir\E/\Q$disfilename\E/:) { $kaputt=1; last; }
  509: 	}
  510: 	%Apache::lonpublisher::metadatafields=();
  511: 	%Apache::lonpublisher::metadatakeys=();
  512: 	my $construct=$here;
  513: 	$construct=~s:^/priv/(\w+)$:/home/$1/public_html:;
  514: 	&Apache::lonpublisher::metaeval(&Apache::lonnet::getfile(
  515:        				 $construct.'/'.$dirname.'/default.meta'
  516: 								 ));
  517:         my $actionitem = '';
  518:         if ($dirname eq '..') {
  519:             $actionitem = 'Go to ...';
  520:         } else {
  521:             $actionitem = 
  522:                     '<form name="dirselect_'.$$numdir.
  523:                     '" action="/adm/publish" target="_parent">'.
  524:                     '<select name="diraction" onChange="SetPubDir(this.form,document)">'.
  525:                       '<option selected="selected">'.&mt('Select action').'</option>'.
  526:                       '<option value="open">'.&mt('Open').'</option>'.
  527:                       '<option value="publish">'.&mt('Publish').'</option>'.
  528:                       '<option value="publishsub">'.&mt('Publish with subdirectories').'</option>'.
  529:                       '<option value="editcat">'.&mt('Edit catalog information').'</option>'.
  530:                       '<option value="printdir">'.&mt('Print directory').
  531:                     '</select>'.
  532:                      '<input type="hidden" name="filename" value="'.$here.'/'.$dirname.'" />'.
  533:                      '<input type="hidden" name="pubrec" value="" />'.
  534:                      '<input type="hidden" name="forcerepub" value="" />'.
  535:                      '<input type="hidden" name="curseed" value="0" />'.
  536:                      '<input type="hidden" name="problemtype" value="0" />'.
  537:                      '<input type="hidden" name="postdata" value="" />'.
  538:                    '</form>';
  539:             $$numdir ++;
  540:         }
  541: 	$r->print('<tr bgcolor="#CCCCFF">'.
  542: 		  '<td><img src="'.
  543: 		  $Apache::lonnet::perlvar{'lonIconsURL'}.'/folder_closed.gif" /></td>'.
  544: 		  '<td>'.$actionitem.'</td>'.
  545: 		  '<td><font face="arial"><a href="'.$here.'/'.$dirname.'/" target="_parent">'.
  546: 		  $disfilename.'</a></font></td>'.
  547: 		        '<td colspan="2">'.($kaputt?&Apache::lonhtmlcommon::authorbombs($resdir.'/'.$disfilename.'/'):'').$Apache::lonpublisher::metadatafields{'title'}.' <i>'.
  548: 		  $Apache::lonpublisher::metadatafields{'subject'}.'</i> '.
  549: 		  $Apache::lonpublisher::metadatafields{'keywords'}.'</td>'.
  550: 		  '<td>'.&Apache::lonlocal::locallocaltime($modtime).'</td>'.
  551: 		  "</tr>\n");
  552:     }
  553:     return OK;
  554: }
  555: #
  556: #   Put a table row for a file resource.
  557: #
  558: sub putresource {
  559:     my ($r, $udom, $uname, $filename, $thisdisfn, 
  560: 	$resdir, $targetdir, $linkdir,
  561: 	$cmtime,$bombs,$numres) = @_;
  562:     my $pubstatus = 'unpublished';
  563:     my $status=&mt('Unpublished');
  564:     my $bgcolor='#FFAA99';
  565:     my $title='&nbsp;';
  566:     my $publish_button=&mt('Publish');
  567: #    my $action_buttons=
  568: #        '<br /><a target="_parent" href="/adm/cfile?action=delete&filename=/~'.
  569: #	$uname.'/'.$thisdisfn.'/'.$filename.'">'.
  570: #	&mt('Delete').'</a>';
  571:     if (-e $resdir.'/'.$filename) {
  572: 	my ($rdev,$rino,$rmode,$rnlink,
  573: 	    $ruid,$rgid,$rrdev,$rsize,
  574: 	    $ratime,$rmtime,$rctime,
  575: 	    $rblksize,$rblocks)=stat($resdir.'/'.$filename);
  576: 	$publish_button=&mt('Re-publish');
  577: 	if ($rmtime>=$cmtime) {
  578:             $pubstatus = 'published';
  579: 	    $status=&mt('Published').'<br />'.
  580: 		&mt(&getCopyRightString($targetdir.'/'.$filename)).' '.
  581: 		&mt(&getSourceRightString($targetdir.'/'.$filename));
  582: 	    $bgcolor='#CCFF88';
  583: 	    if (&Apache::lonnet::metadata($targetdir.'/'.$filename,'obsolete')) {
  584:                 $pubstatus = 'obsolete';
  585: 		$status=&mt('Obsolete');
  586:                 $bgcolor='#AAAAAA';
  587:             }
  588: #	    } else {
  589: #		$action_buttons='';
  590: #	    }
  591: 	    $title='<a href="/res/'.$targetdir.'/'.$filename.
  592: 		'.meta" target=cat>'.
  593: 		&getTitleString($targetdir.'/'.$filename).'</a>';
  594: 	} else {
  595:             $pubstatus = 'modified';
  596: 	    $status=&mt('Modified').'<br />'.
  597: 		&mt(&getCopyRightString($targetdir.'/'.$filename)).' '.
  598: 		&mt(&getSourceRightString($targetdir.'/'.$filename));
  599:             $bgcolor='#FFFF77';
  600: #	    $action_buttons='';
  601: 	    $title='<a href="/res/'.$targetdir.'/'.$filename.'.meta" target=cat>'.
  602: 		&getTitleString($targetdir.'/'.$filename).'</a>';
  603: 	    if (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
  604: 		$status.='<br /><a href="/adm/diff?filename=/~'.$uname.
  605: 		    $thisdisfn.'/'.$filename.
  606: 		    '&versiontwo=priv" target=cat>'.&mt('Diffs').'</a>';
  607: 	    }
  608: 	}
  609: 	$title.='<br /><a href="/~'.$uname.$thisdisfn.'/'.$filename.'.meta">'. 
  610: 	    ($$bombs{$targetdir.'/'.$filename}?'<img src="/adm/lonMisc/bomb.gif" border="0" />':'Edit Metadata').'</a>';
  611: 	$status.='<br><a href="/adm/retrieve?filename=/~'.$uname.
  612: 	    $thisdisfn.'/'.$filename.'" target="_parent">'.&mt('Retrieve').'</a>';
  613:     }
  614:     my $editlink='';
  615:     my $editlink2='';
  616:     if ($filename=~/\.(xml|html|htm|xhtml|xhtm|sty)$/) {
  617: 	$editlink=' <br />(<a href="'.$linkdir.'/'.$filename.'?forceedit=1" target="_parent">'.&mt('Edit').'</a>)';
  618:     }
  619:     if ($filename=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
  620: 	$editlink=' (<a href="'.$linkdir.'/'.$filename.'?forceedit=1" target="_parent">'.&mt('EditXML').'</a>)';
  621: 	$editlink2=' <br />(<a href="'.$linkdir.'/'.$filename.'?forceColoredit=1" target="_parent">'.&mt('Edit').'</a>)';
  622:     }
  623:     if ($filename=~/\.(zip|tar|bz2|gz|tar.gz|tar.bz2|tgz)$/) {
  624: 	$editlink=' (<a target="_parent" href="/adm/cfile?decompress=/~'.
  625: 	      $uname.$thisdisfn.'/'.$filename.'">'.&mt('Decompress').'</a>)';
  626:     }
  627:     my $pub_select = '';
  628:     &create_pubselect($r,\$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres);
  629:     $r->print('<tr bgcolor="'.$bgcolor.'">'.
  630: 	      '<td>'.($filename=~/[\#\~]$/?'&nbsp;':
  631: 		      '<img src="'.&Apache::loncommon::icon($filename).'" /></td>').
  632:               '<td>'.$pub_select.'</td>'.
  633: 	      '<td><font face="arial">'.
  634: 	      '<a href="'.$linkdir.'/'.$filename.'" target="_parent">'.
  635:                $filename.'</a></font>'.$editlink2.$editlink.
  636: 	      '</td>'.
  637: 	      '<td>'.$title.'</td>'.
  638: 	      '<td>'.$status.'</td>'.
  639: 	      '<td>'.&Apache::lonlocal::locallocaltime($cmtime).'</td>'.
  640: 	      "</tr>\n");
  641:     return OK;
  642: }
  643: 
  644: sub create_pubselect {
  645:     my ($r,$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres) = @_;
  646:     $$pub_select = '
  647: <form name="resselect_'.$$numres.'" action="">
  648: <select name="reschoice"  onChange="SetResChoice(this.form)">
  649: <option>'.&mt('Select action').
  650: '<option value="rename"/>'.&mt('Rename').
  651: '<option value="move"/>'.&mt('Move').
  652: '<option value="copy"/>'.&mt('Copy').
  653: '<option value="publish"/>'.$publish_button;
  654:     if ($pubstatus eq 'obsolete' || $pubstatus eq 'unpublished') {
  655:         $$pub_select .= '
  656: <option value="delete"/>'.&mt('Delete');
  657:     } else {
  658:         $$pub_select .= '
  659: <option value="obsolete"/>'.&mt('Mark obsolete');
  660:     }
  661:     $$pub_select .= '
  662: <option value="print"/>'.&mt('Print');
  663: 
  664: # check for versions
  665:     my $versions = &check_for_versions($r,'/'.$filename,$udom,$uname);
  666:     if ($versions > 0) {
  667:         $$pub_select .='
  668: <option value="retrieve"/>'.&mt('Retrieve old version');
  669:     }
  670:     $$pub_select .= '
  671: </select>
  672: <input type="hidden" name="filename" value="/~'.
  673:  $uname.'/'.$thisdisfn.'/'.$filename.'"></form>';
  674:     $$numres ++;
  675: }
  676: 
  677: sub check_for_versions {
  678:     my ($r,$fn,$udom,$uname) = @_;
  679:     my $versions = 0;
  680:     my $docroot=$r->dir_config('lonDocRoot');
  681:     my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn;
  682:     my $resdir=$resfn;
  683:     $resdir=~s/\/[^\/]+$/\//;
  684:     $fn=~/\/([^\/]+)\.(\w+)$/;
  685:     my $main=$1;
  686:     my $suffix=$2;
  687:     opendir(DIR,$resdir);
  688:     while (my $filename=readdir(DIR)) {
  689:         if ($filename=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/) {
  690:             $versions ++;        
  691:         }
  692:     }
  693:     return $versions;
  694: }
  695: 
  696: #
  697: #   Categorize files in the directory.
  698: #   For each file in a list of files in a file directory, 
  699: #   the  file categorized as one of:
  700: #    - directory  
  701: #    - sequence
  702: #    - problem 
  703: #    - Other resource.
  704: #
  705: #   For each file the modification date is determined as well.
  706: #   Returned is a list of sublists:
  707: #    (directories, sequences, problems, other)
  708: #   each of the sublists contains entries of the following form (sorted by
  709: #   filename):
  710: #     (filename, typecode, lastmodtime)
  711: #
  712: #   $list = CategorizeFiles($location, $files)
  713: #       $location   - Directory in which the files live (relative to our
  714: #                     execution.
  715: #       $files      - list of files.
  716: #
  717: sub CategorizeFiles {
  718:     my $location = shift;
  719:     my $files    = shift;
  720: }
  721: 
  722: 1;
  723: __END__
  724: 
  725: =head1 NAME
  726: 
  727: Apache::lonpubdir - Construction space directory lister
  728: 
  729: =head1 SYNOPSIS
  730: 
  731: Invoked (for various locations) by /etc/httpd/conf/srm.conf:
  732: 
  733:  <LocationMatch "^/\~.*/$">
  734:  PerlAccessHandler       Apache::loncacc
  735:  SetHandler perl-script
  736:  PerlHandler Apache::lonpubdir
  737:  ErrorDocument     403 /adm/login
  738:  ErrorDocument     404 /adm/notfound.html
  739:  ErrorDocument     406 /adm/unauthorized.html
  740:  ErrorDocument	  500 /adm/errorhandler
  741:  </LocationMatch>
  742: 
  743:  <Location /adm/pubdir>
  744:  PerlAccessHandler       Apache::lonacc
  745:  SetHandler perl-script
  746:  PerlHandler Apache::lonpubdir
  747:  ErrorDocument     403 /adm/login
  748:  ErrorDocument     404 /adm/notfound.html
  749:  ErrorDocument     406 /adm/unauthorized.html
  750:  ErrorDocument	  500 /adm/errorhandler
  751:  </Location>
  752: 
  753: =head1 INTRODUCTION
  754: 
  755: This module publishes a directory of files.
  756: 
  757: This is part of the LearningOnline Network with CAPA project
  758: described at http://www.lon-capa.org.
  759: 
  760: =head1 HANDLER SUBROUTINE
  761: 
  762: This routine is called by Apache and mod_perl.
  763: 
  764: =over 4
  765: 
  766: =item *
  767: 
  768: read in information
  769: 
  770: =item *
  771: 
  772: start page output
  773: 
  774: =item *
  775: 
  776: run through list of files and attempt to publish unhidden files
  777: 
  778: =back
  779: 
  780: =cut