--- loncom/interface/londocs.pm 2004/09/14 01:21:49 1.142 +++ loncom/interface/londocs.pm 2004/12/14 21:10:58 1.156 @@ -1,7 +1,7 @@ # The LearningOnline Network # Documents # -# $Id: londocs.pm,v 1.142 2004/09/14 01:21:49 raeburn Exp $ +# $Id: londocs.pm,v 1.156 2004/12/14 21:10:58 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -40,6 +40,7 @@ use Apache::lonnavmaps; use HTML::Entities; use GDBM_File; use Apache::lonlocal; +use Cwd; my $iconpath; @@ -254,6 +255,7 @@ sub exportcourse { my $navmap = Apache::lonnavmaps::navmap->new(); my $it=$navmap->getIterator(undef,undef,undef,1,undef,undef); my $curRes; + my $outcome; &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['finishexport']); @@ -277,29 +279,49 @@ sub exportcourse { $discussions[0] = $ENV{'form.discussion'}; } } - my $curRes; - my $count; - my %symbs; - my $display; - while ($curRes = $it->next()) { - if (ref($curRes)) { - $count ++; - $symbs{$count} = $curRes->symb(); - if (grep/^$count$/,@exportitems) { - $display.= 'Export content item '.$curRes->title()."<br />\n"; + if (@exportitems == 0 && @discussions == 0) { + $outcome = '<br />As you did not select any content items or discussions for export, an IMS package has not been created. Please <a href="javascript:history.go(-1)">go back</a> to select either content items or discussions for export'; + } else { + my $now = time; + my $count = 0; + my %symbs; + my $manifestok = 0; + my $imsresources; + my $tempexport; + my $copyresult; + my $ims_manifest = &create_ims_store($now,\$manifestok,\$outcome,\$tempexport); + if ($manifestok) { + &build_package($now,$navmap,\@exportitems,\@discussions,\$outcome,\$tempexport,\$copyresult,$ims_manifest); + close($ims_manifest); + +#Create zip file in prtspool + my $imszipfile = '/prtspool/'. + $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'. + time.'_'.rand(1000000000).'.zip'; +# zip can cause an sh launch which can pass along all of %ENV +# which can be too large for /bin/sh to handle + my %oldENV=%ENV; + undef(%ENV); + my $cwd = &Cwd::getcwd(); + my $imszip = '/home/httpd/'.$imszipfile; + chdir $tempexport; + open(OUTPUT, "zip -r $imszip * 2> /dev/null |"); + close(OUTPUT); + chdir $cwd; + %ENV=%oldENV; + undef(%oldENV); + $outcome .= 'Download the zip file from <a href="'.$imszipfile.'">IMS course archive</a><br />'; + if ($copyresult) { + $outcome .= 'The following errors occurred during export - '.$copyresult; } - if (grep/^$count$/,@discussions) { - $display.= 'Export discussion posts '.$curRes->title()."<br />\n"; - } + } else { + $outcome = '<br />Unfortunately you will not be able to retrieve an IMS archive of this posts at this time, because there was a problem creating a manifest file.<br />'; } } $r->print('<html><head><title>Export Course</title></head>'. - &Apache::loncommon::bodytag('Export course to IMS or SCORM content package' -)); - - my $exportfile; - $r->print($display); + &Apache::loncommon::bodytag('Export course to IMS or SCORM content package')); + $r->print($outcome); $r->print('</body></html>'); } else { my $display; @@ -433,6 +455,255 @@ function containerCheck(item) { } } +sub create_ims_store { + my ($now,$manifestok,$outcome,$tempexport) = @_; + $$tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports'; + my $ims_manifest; + if (!-e $$tempexport) { + mkdir($$tempexport,0700); + } + $$tempexport .= '/'.$now; + if (!-e $$tempexport) { + mkdir($$tempexport,0700); + } + $$tempexport .= '/'.$ENV{'user.domain'}.'_'.$ENV{'user.name'}; + if (!-e $$tempexport) { + mkdir($$tempexport,0700); + } +# open manifest file + my $manifest = '/imsmanifest.xml'; + my $manifestfilename = $$tempexport.$manifest; + if ($ims_manifest = Apache::File->new('>'.$manifestfilename)) { + $$manifestok=1; + print $ims_manifest +'<?xml version="1.0" encoding="UTF-8"?>'."\n". +'<manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1"'. +' xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"'. +' xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"'. +' identifier="MANIFEST-'.$ENV{'request.course.id'}.'-'.$now.'"'. +' xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1imscp_v1p1.xsd'. +' http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">'."\n". +' <organizations default="ORG-."'.$ENV{'request,course.id'}.'-'.$now.'">'."\n". +' <organization identifier="ORG-'.$ENV{'request.course.id'}.'-'.$now.'"'. +' structure="hierarchical">'."\n". +' <title>'.$ENV{'request.'.$ENV{'request.course.id'}.'.description'}.'</title>' + } else { + $$outcome .= 'An error occurred opening the IMS manifest file.<br />' +; + } + return $ims_manifest; +} + +sub build_package { + my ($now,$navmap,$exportitems,$discussions,$outcome,$tempexport,$copyresult,$ims_manifest) = @_; +# first iterator to look for dependencies + my $it = $navmap->getIterator(undef,undef,undef,1,undef,undef); + my $curRes; + my $count = 0; + my $depth = 0; + my $lastcontainer = 0; + my %parent = (); + my @dependencies = (); + my $cnum = $ENV{'request.'.$ENV{'request.course.id'}.'.num'}; + my $cdom = $ENV{'request.'.$ENV{'request.course.id'}.'.domain'}; + while ($curRes = $it->next()) { + if (ref($curRes)) { + $count ++; + } + if ($curRes == $it->BEGIN_MAP()) { + $depth++; + $parent{$depth} = $lastcontainer; + } + if ($curRes == $it->END_MAP()) { + $depth--; + $lastcontainer = $parent{$depth}; + } + if (ref($curRes)) { + if ($curRes->is_sequence() || $curRes->is_page()) { + $lastcontainer = $count; + } + if (grep/^$count$/,@$exportitems) { + &get_dependencies($exportitems,\%parent,$depth,\@dependencies); + } + } + } +# second iterator to build manifest and store resources + $it = $navmap->getIterator(undef,undef,undef,1,undef,undef); + $depth = 0; + my $prevdepth; + $count = 0; + my $imsresources; + my $pkgdepth; + if ($curRes == $it->BEGIN_MAP()) { + $prevdepth = $depth; + $depth++; + } + if ($curRes == $it->END_MAP()) { + $prevdepth = $depth; + $depth--; + } + + if (ref($curRes)) { + if ((grep/^$count$/,@$exportitems) || (grep/^$count$/,@dependencies)) { + my $symb = $curRes->symb(); + my $isvisible = 'true'; + my $resourceref; + if ($curRes->randomout()) { + $isvisible = 'false'; + } + unless ($curRes->is_sequence()) { + $resourceref = 'identifierref="RES-'.$ENV{'request.course.id'}.'-'.$count.'"'; + } + if (($depth <= $prevdepth) && ($count > 1)) { + print $ims_manifest ' </item>'."\n"; + } + $prevdepth = $depth; + + my $itementry = + '<item identifier="ITEM-'.$ENV{'request.course.id'}.'-'.$count. + '" isvisible="'.$isvisible.'" '.$resourceref.'>'. + '<title>'.$curRes->title().'</title>'; + print $ims_manifest "\n".$itementry; + + unless ($curRes->is_sequence()) { + my $content_file; + my @hrefs = (); + &process_content($count,$curRes,$cdom,$cnum,$symb,$content_file,\@hrefs,$copyresult,$tempexport); + if ($content_file) { + $imsresources .= "\n". + ' <resource identifier="RES-'.$ENV{'request.course.id'}.'-'.$count. + '" type="webcontent" href="'.$content_file.'">'."\n". + ' <file href="'.$content_file.'" />'."\n"; + foreach (@hrefs) { + $imsresources .= + ' <file href="'.$_.'" />'."\n"; + } + $imsresources .= ' </resource>'."\n"; + } + } + $pkgdepth = $depth; + } + } + while ($pkgdepth > -1) { + print $ims_manifest " </item>\n"; + $pkgdepth --; + } + my $resource_text = qq| + </organization> + </organizations> + <resources> + $imsresources + </resources> +</manifest> + |; + print $ims_manifest $resource_text; +} + +sub get_dependencies { + my ($exportitems,$parent,$depth,$dependencies) = @_; + if ($depth > 1) { + unless (grep/^$$parent{$depth}$/,@$exportitems || grep/^$$parent{$depth}$/,@$dependencies) { + push @$dependencies, $$parent{$depth}; + if ($depth > 2) { + &get_dependencies($exportitems,$parent,$depth-1,$dependencies); + } + } + } +} + +sub process_content { + my ($count,$curRes,$cdom,$cnum,$symb,$content_file,$href,$copyresult,$tempexport) = @_; + my $content_type; + my $message; +# find where user is author or co-author + my %roleshash = &Appache::lonnet::get_my_roles(); + if ($curRes->is_page()) { + $content_type = 'page'; + } elsif ($symb =~ m-public/$cdom/$cnum/syllabus$-) { + $content_type = 'syllabus'; + } elsif ($symb =~ m-\.sequence____\d+____ext-) { + $content_type = 'external'; + } elsif ($symb =~ m-adm/navmaps$-) { + $content_type = 'navmap'; + } elsif ($symb =~ m-adm/$cdom/$cnum/\d+/smppg$-) { + $content_type = 'simplepage'; + } elsif ($symb =~ m-$-) { + $content_type = 'simpleproblem'; + } elsif ($symb =~ m-adm/$cdom/$cnum/\d+/bulletinboard$-) { + $content_type = 'bulletinboard'; + } elsif ($symb =~ m-adm/$cdom/$cnum/\d+/aboutme$-) { + $content_type = 'aboutme'; + } elsif ($symb =~ m-uploaded/$cdom/$cnum-) { + &replicate_content($cdom,$cnum,$tempexport,$symb,$count,\$message,'uploaded'); + } elsif ($symb =~ m-\.sequence____\d+____([^/])/([^/])-) { + my $coauth = $2.':'.$1.':ca'; + my $canedit = 0; + if ($1 eq $ENV{'user.domain'} && $2 eq $ENV{'user.name'}) { + $canedit= 1; + } elsif (defined($roleshash{$coauth})) { + if ($roleshash{$coauth} =~ /(\d+):(\d+)/) { + if (($1 < time || $1 == 0) && ($2 == 0 || $2 >= time)) { + $canedit = 1; + } + } elsif ($roleshash{$coauth} eq ':') { + $canedit = 1; + } + } + if ($canedit) { + &replicate_content($cdom,$cnum,$tempexport,$symb,$count,\$message,'resource'); + } else { + &replicate_content($cdom,$cnum,$tempexport,$symb,$count,\$message,'noedit'); + } + } + $$copyresult .= $message."\n"; +} + +sub replicate_content { + my ($cdom,$cnum,$tempexport,$symb,$count,$message,$caller) = @_; + my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); + my $feedurl = &Apache::lonnet::clutter($url); + + my $content; + my $filename; + my $repstatus; + if ($url =~ m-[^/]/(.+)$-) { + $filename = $1; + if (!-e $tempexport.'/resources') { + mkdir($tempexport.'/resources',0700); + } + if (!-e $tempexport.'/resources') { + mkdir($tempexport.'/resources/'.$count,0700); + } + my $destination = $$tempexport.'/resources/'.$count.'/'.$filename; + my $copiedfile; + if ($copiedfile = Apache::File->new('>'.$destination)) { + my $content; + if ($caller eq 'uploaded' || $caller eq 'resource') { + $content = &Apache::lonnet::getfile($url); + if ($content eq -1) { + $$message = 'Could not copy file '.$filename; + } else { + $repstatus = 'ok'; + } + } elsif ($caller eq 'noedit') { + my $rtncode; + $repstatus = &getuploaded('GET',$url,$cdom,$cnum,$content,$rtncode); + unless ($repstatus eq 'ok') { + $$message = 'Could not render '.$url.' server message - '.$rtncode; + } + } + if ($repstatus eq 'ok') { + print $copiedfile $content; + } + close($copiedfile); + } else { + $$message = 'Could not open destination file for '.$filename."\n"; + } + } else { + $$message = 'Could not determine name of file for '; + } + return $repstatus; +} # Imports the given (name, url) resources into the course # coursenum, coursedom, and folder must precede the list @@ -663,10 +934,11 @@ sub editor { $comment=~s/\</\<\;/g; $comment=~s/\>/\>\;/g; $comment=~s/\:/\:/g; - $Apache::lonratedt::resources[ + if ($comment=~/\S/) { + $Apache::lonratedt::resources[ $Apache::lonratedt::order[$idx]]= - $comment.':'.join(':',@rrest); - + $comment.':'.join(':',@rrest); + } } # Store the changed version ($errtext,$fatal)=&storemap($coursenum,$coursedom, @@ -717,15 +989,17 @@ sub editor { # ---------------------------------------------------------------- End commands # ---------------------------------------------------------------- Print screen my $idx=0; + my $shown=0; $r->print('<table>'); foreach (@Apache::lonratedt::order) { my ($name,$url)=split(/\:/,$Apache::lonratedt::resources[$_]); unless ($name) { $name=(split(/\//,$url))[-1]; } - unless ($name) { next; } + unless ($name) { $idx++; next; } $r->print(&entryline($idx,$name,$url,$folder,$allowed,$_,$coursenum)); $idx++; + $shown++; } - unless ($idx) { + unless ($shown) { $r->print('<tr><td>'.&mt('Currently no documents.').'</td></tr>'); } $r->print('</table>'); @@ -760,10 +1034,11 @@ sub entryline { $folderpath=&Apache::lonnet::escape($ENV{'form.folderpath'}); # $htmlfoldername=&HTML::Entities::encode($ENV{'form.foldername'},'<>&"'); } - my $pagepath; + my ($pagepath,$pagesymb); if ($ENV{'form.pagepath'}) { $container = 'page'; $pagepath=&Apache::lonnet::escape($ENV{'form.pagepath'}); + $pagesymb=&Apache::lonnet::escape($ENV{'form.pagesymb'}); } if ($allowed) { my $incindex=$index+1; @@ -790,20 +1065,21 @@ sub entryline { $line.=(<<END); <form name="entry_$index" action="/adm/coursedocs" method="post"> <input type="hidden" name="pagepath" value="$ENV{'form.pagepath'}" /> +<input type="hidden" name="pagesymb" value="$ENV{'form.pagesymb'}" /> <input type="hidden" name="setparms" value="$orderidx" /> <td><table border='0' cellspacing='2' cellpadding='0'> <tr><td bgcolor="#DDDDDD"> -<a href='/adm/coursedocs?cmd=up_$index&pagepath=$pagepath'> +<a href='/adm/coursedocs?cmd=up_$index&pagepath=$pagepath&pagesymb=$pagesymb'> <img src="${iconpath}move_up.gif" alt='$lt{'up'}' border='0' /></a></td></tr> <tr><td bgcolor="#DDDDDD"> -<a href='/adm/coursedocs?cmd=down_$index&pagepath=$pagepath'> +<a href='/adm/coursedocs?cmd=down_$index&pagepath=$pagepath&pagesymb=$pagesymb'> <img src="${iconpath}move_down.gif" alt='$lt{'dw'}' border='0' /></a></td></tr> </table></td> <td>$selectbox </td><td bgcolor="#DDDDDD"> -<a href='javascript:removeres("$pagepath","$index","$renametitle","page");'> +<a href='javascript:removeres("$pagepath","$index","$renametitle","page","$pagesymb");'> <font size="-2" color="#990000">$lt{'rm'}</font></a> -<a href='javascript:changename("$pagepath","$index","$renametitle","page");'> +<a href='javascript:changename("$pagepath","$index","$renametitle","page","$pagesymb");'> <font size="-2" color="#009900">$lt{'rn'}</font></a></td> END } else { @@ -875,10 +1151,16 @@ END } elsif ($url!~/\.(sequence|page)$/) { $url='/adm/coursedocs/showdoc'.$url; } + } elsif ($url=~m|^/ext/|) { + $url='/adm/wrapper'.$url; } - unless ($container eq 'page') { + $url.=(($url=~/\?/)?'&':'?').'symb='.&Apache::lonnet::escape($symb); + if ($container eq 'page') { + my $symb=$ENV{'form.pagesymb'}; + + $url=&Apache::lonnet::clutter((&Apache::lonnet::decode_symb($symb))[2]); $url.=(($url=~/\?/)?'&':'?').'symb='.&Apache::lonnet::escape($symb); - } + } } my $parameterset=' '; if ($isfolder) { @@ -887,9 +1169,12 @@ END if ($folderpath) { $folderpath.='&' }; $folderpath.=$folderarg.'&'.$foldername; $url.='folderpath='.&Apache::lonnet::escape($folderpath); - $parameterset=&mt('Randomly Pick: '). + $parameterset='<label>'.&mt('Randomly Pick: '). '<input type="text" size="4" name="randpick_'.$orderidx.'" value="'. - (&Apache::lonratedt::getparameter($orderidx,'parameter_randompick'))[0].'" />'; + (&Apache::lonratedt::getparameter($orderidx, + 'parameter_randompick'))[0]. + '" />'.'</label>'; + } if ($ispage) { my $pagename=&Apache::lonnet::escape($pagetitle); @@ -897,7 +1182,17 @@ END my $folderpath=$ENV{'form.folderpath'}; if ($folderpath) { $pagepath = $folderpath.'&' }; $pagepath.=$pagearg.'&'.$pagename; - $url.='pagepath='.&Apache::lonnet::escape($pagepath); + my $symb=$ENV{'form.pagesymb'}; + if (!$symb) { + my $path='uploaded/'. + $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.'/'. + $ENV{'course.'.$ENV{'request.course.id'}.'.num'}.'/'; + $symb=&Apache::lonnet::encode_symb($path.$folder.'.sequence', + $residx, + $path.$pagearg.'.page'); + } + $url.='pagepath='.&Apache::lonnet::escape($pagepath). + '&pagesymb='.&Apache::lonnet::escape($symb); } $line.='<td bgcolor="#FFFFBB"><a href="'.$url.'"><img src="'.$icon. '" border="0"></a></td>'. @@ -913,9 +1208,9 @@ END ((&Apache::lonratedt::getparameter($orderidx,'parameter_hiddenresource'))[0]=~/^yes$/i?' checked="1"':''); $line.=(<<ENDPARMS); <td bgcolor="#BBBBFF"><font size='-2'> -<input type="checkbox" name="hidprs_$orderidx" $hidtext/> $lt{'hd'}</td> -<!--<td bgcolor="#BBBBFF"><font size='-2'> -<input type="checkbox" name="encprs_$orderidx" $enctext/> $lt{'ec'}</td>--> +<nobr><label><input type="checkbox" name="hidprs_$orderidx" $hidtext/> $lt{'hd'}</label></nobr></td> +<td bgcolor="#BBBBFF"><font size='-2'> +<nobr><label><input type="checkbox" name="encprs_$orderidx" $enctext/> $lt{'ec'}</label></nobr></td> <td bgcolor="#BBBBFF"><font size="-2">$parameterset</font></td> <td bgcolor="#BBBBFF"><font size='-2'> <input type="submit" value="$lt{'sp'}" /> @@ -1328,11 +1623,18 @@ sub is_hash_old { sub changewarning { my ($r,$postexec)=@_; if (!&is_hash_old()) { return; } + my $pathvar='folderpath'; + my $path=&Apache::lonnet::escape($ENV{'form.folderpath'}); + if (defined($ENV{'form.pagepath'})) { + $pathvar='pagepath'; + $path=&Apache::lonnet::escape($ENV{'form.pagepath'}); + $path.='&symb='.&Apache::lonnet::escape($ENV{'form.pagesymb'}); + } $r->print( '<script>function reinit(tf) { tf.submit();'.$postexec.' }</script>'. '<form method="post" action="/adm/roles" target="loncapaclient">'. -'<input type="hidden" name="orgurl" value="/adm/coursedocs?folderpath='. -&Apache::lonnet::escape($ENV{'form.folderpath'}). +'<input type="hidden" name="orgurl" value="/adm/coursedocs?'. +$pathvar.'='.$path. '" /><input type="hidden" name="selectrole" value="1" /><h3><font color="red">'. &mt('Changes will become active for your current session after'). ' <input type="hidden" name="'. @@ -1382,7 +1684,7 @@ sub handler { # is this a standard course? my $standard=($ENV{'request.course.uri'}=~/^\/uploaded\//); - my $forcestandard; + my $forcestandard = 0; my $forcesupplement; my $script=''; my $allowed; @@ -1391,7 +1693,7 @@ sub handler { my $containertag; my $uploadtag; &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, - ['folderpath','pagepath']); + ['folderpath','pagepath','pagesymb']); if ($ENV{'form.folderpath'}) { my (@folderpath)=split('&',$ENV{'form.folderpath'}); $ENV{'form.foldername'}=&Apache::lonnet::unescape(pop(@folderpath)); @@ -1401,14 +1703,19 @@ sub handler { my (@pagepath)=split('&',$ENV{'form.pagepath'}); $ENV{'form.pagename'}=&Apache::lonnet::unescape(pop(@pagepath)); $ENV{'form.folder'}=pop(@pagepath); - $containertag = '<input type="hidden" name="pagepath" value="" />'; - $uploadtag = '<input type="hidden" name="pagepath" value="'.$ENV{'form.pagepath'}.'" />'; + $containertag = '<input type="hidden" name="pagepath" value="" />'. + '<input type="hidden" name="pagesymb" value="" />'; + $uploadtag = '<input type="hidden" name="pagepath" value="'.$ENV{'form.pagepath'}.'" />'. + '<input type="hidden" name="pagesymb" value="'.$ENV{'form.pagesymb'}.'" />'; } if ($r->uri=~/^\/adm\/coursedocs\/showdoc\/(.*)$/) { $showdoc='/'.$1; } unless ($showdoc) { # got called from remote - $forcestandard=($ENV{'form.folder'}=~/^default_/); + if (($ENV{'form.folder'}=~/^default_/) || + ($ENV{'form.folder'} =~ m#^\d+/(pages|sequences)/#)) { + $forcestandard = 1; + } $forcesupplement=($ENV{'form.folder'}=~/^supplemental_/); # does this user have privileges to post, etc? @@ -1542,7 +1849,7 @@ function finishpick() { '";this.document.forms.'+form+'.submit();'); } -function changename(folderpath,index,oldtitle,container) { +function changename(folderpath,index,oldtitle,container,pagesymb) { var title=prompt('New Title',oldtitle); if (title) { this.document.forms.renameform.title.value=title; @@ -1552,12 +1859,13 @@ function changename(folderpath,index,old } if (container == 'page') { this.document.forms.renameform.pagepath.value=folderpath; + this.document.forms.renameform.pagesymb.value=pagesymb; } this.document.forms.renameform.submit(); } } -function removeres(folderpath,index,oldtitle,container) { +function removeres(folderpath,index,oldtitle,container,pagesymb) { if (confirm('Remove "'+oldtitle+'"?')) { this.document.forms.renameform.cmd.value='del_'+index; if (container == 'sequence') { @@ -1565,6 +1873,7 @@ function removeres(folderpath,index,oldt } if (container == 'page') { this.document.forms.renameform.pagepath.value=folderpath; + this.document.forms.renameform.pagesymb.value=pagesymb; } this.document.forms.renameform.submit(); }