--- loncom/interface/lonrss.pm 2006/08/11 20:11:47 1.27 +++ loncom/interface/lonrss.pm 2008/12/15 16:37:44 1.42 @@ -1,7 +1,7 @@ # The LearningOnline Network # RSS Feeder # -# $Id: lonrss.pm,v 1.27 2006/08/11 20:11:47 albertel Exp $ +# $Id: lonrss.pm,v 1.42 2008/12/15 16:37:44 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -36,7 +36,7 @@ use Apache::lonnet; use Apache::lontexconvert; use Apache::lonlocal; use Apache::lonhtmlcommon; - +use Apache::inputtags(); sub filterfeedname { my $filename=shift; @@ -92,19 +92,22 @@ sub advertisefeeds { if ($edit) { $mode='adm'; } + my $server = &Apache::lonnet::absolute_url(); foreach my $feed (sort(keys(%feednames))) { - if (($feed!~/^error\:/) && ($feed!~/^feed\_display\_option\_/)) { - my $feedurl='http://'.$ENV{'HTTP_HOST'}.'/public/'.$udom.'/'.$uname.'/'.$feed.'.rss'; - my $htmlurl='http://'.$ENV{'HTTP_HOST'}.'/'.$mode.'/'.$udom.'/'.$uname.'/'.$feed.'_rss.html'; - if ($feednames{'feed_display_option_'.$feed} eq 'hidden') { - if ($edit) { - $feeds.='
  • '.$feednames{$feed}.'
    '.&mt('Hidden').': '.$htmlurl.'
    • '; - } - } else { - $feeds.='
  • '.$feednames{$feed}. - '
    '.($edit?&mt('Edit'):'HTML').': '.$htmlurl.''. - '
    RSS: '.$feedurl.'
    • '; + next if ($feed =~/^\s*$/ || + $feed =~ /^error:/ || + $feed =~ /^feed_display_option_/); + + my $feedurl= $server.'/public/'.$udom.'/'.$uname.'/'.$feed.'.rss'; + my $htmlurl= $server.'/'.$mode.'/'.$udom.'/'.$uname.'/'.$feed.'_rss.html'; + if ($feednames{'feed_display_option_'.$feed} eq 'hidden') { + if ($edit) { + $feeds.='
  • '.$feednames{$feed}.'
    '.&mt('Hidden').': '.$htmlurl.'
    • '; } + } else { + $feeds.='
  • '.$feednames{$feed}. + '
    '.($edit?&mt('Edit'):'HTML').': '.$feednames{$feed}.' HTML'. + '
    '.&mt('Public RSS/podcast (subscribe to)').': '.$feednames{$feed}.' RSS/Podcast
    • '; } } if ($feeds) { @@ -115,8 +118,22 @@ sub advertisefeeds { } sub rss_link { - my ($url) = @_; - return qq||; + my ($uname,$udom)=@_; + my $result; + my $server = &Apache::lonnet::absolute_url(); + my %feednames=&Apache::lonnet::dump('nohist_all_rss_feeds',$udom,$uname); + foreach my $feed (sort(keys(%feednames))) { + next if ($feed =~/^\s*$/ || + $feed =~ /^error:/ || + $feed =~/^feed_display_option_/ ); + my $url= $server.'/public/'.$udom.'/'.$uname.'/'.$feed.'.rss'; + my $title = $feed; + $title =~ s/_/ /g; + $result.=qq| + +|; + } + return $result; } { @@ -210,6 +227,52 @@ sub add_blog_entry_link { } +sub blocking_blogdisplay { + my ($uname,$udom,$html,$filterfeedname) = @_; + my $user = &Apache::loncommon::plainname($uname,$udom); + if ($html) { + $user = &Apache::loncommon::aboutmewrapper($user,$uname,$udom); + } else { + $user = $user.' ('.$uname.':'.$udom.')'; + } + my %setters; + my ($blocked,$output,$blockcause); + my ($startblock,$endblock) = + &Apache::loncommon::blockcheck(\%setters,'blogs'); + if ($startblock && $endblock) { + $blockcause = 'user'; + } else { + if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) { + ($startblock,$endblock) = + &Apache::loncommon::blockcheck(\%setters,'blogs', + $uname,$udom); + $blockcause = 'blogowner'; + } + } + if ($startblock && $endblock) { + $blocked = 1; + my $showstart = &Apache::lonlocal::locallocaltime($startblock); + my $showend = &Apache::lonlocal::locallocaltime($endblock); + $output = &mt('Blogs belonging to [_1] are unavailable from [_2] to [_3].',$user,$showstart,$showend); + if ($html) {$output.='
    ';} + if ($blockcause eq 'user') { + $output .= &mt('This is because you are a student in one or more courses in which communication is being blocked.'); + if ($html) { + $output .= '
    '. + &Apache::loncommon::build_block_table($startblock, + $endblock,\%setters); + } + } else { + $output .= &mt('This is because the blog owner is a student in one or more courses in which communication is being blocked.'); + } + if (!$html) { + my $id = &get_new_feed_id(); + $output = '<item><title/><description>'.$output."</description><link/><guid isPermaLink='false'>".$id.$filterfeedname.'_'.$udom.'_'.$uname.'</guid></item>'; + } + } + return ($blocked,$output); +} + sub handler { my ($r) = @_; @@ -240,17 +303,36 @@ sub handler { my $filterfeedname=&filterfeedname($filename); my $feedname=&feedname($filename); my ($displayfeedname,$displayoption)=&displayfeedname($filename,$uname,$udom); + my ($blocked,$blocktext,$disabled,$disabletext); + if (!&Apache::lonnet::is_course($udom,$uname)) { + ($blocked,$blocktext) = &blocking_blogdisplay($uname,$udom,$html,$filterfeedname); + $disabled = &Apache::lonnet::usertools_access($uname,$udom,'blog'); + if ($disabled) { + if ($html) { + $disabletext = '<h2>'.&mt('No user blog available') .'</h2>'. + &mt('This is a result of one of the following:').'<ul>'. + '<li>'.&mt('The administrator of this domain has disabled blog functionality for this specific user.').'</li>'. + '<li>'.&mt('The domain has been configured to disable, by default, blog functionality for all users in the domain.').'</li>'. + '</ul>'; + } else { + $disabletext = &mt('No user blog available'); + } + } + } if ($html) { my $title = $displayfeedname?$displayfeedname :"Available RSS Feeds and Blogs"; - $r->print(&Apache::loncommon::start_page($title,undef, - {'domain' => $udom, - 'force_register' => - $env{'form.register'}}). + my $rss_link = &Apache::lonrss::rss_link($uname,$udom); + my $brcrumb = [{href=>$rss_link,text=>"Available RSS Feeds and Blogs"}]; + $r->print(&Apache::loncommon::start_page($title,$rss_link, + {'bread_crumbs' => $brcrumb, + 'domain' => $udom, + 'force_register' => $env{'form.register'}}). &changed_js()); } else { # render RSS + my $server = &Apache::lonnet::absolute_url(); $r->print("<rss version='2.0' xmlns:dc='http://purl.org/dc/elements/1.1'>\n<channel>". - "\n<link>http://".$ENV{'HTTP_HOST'}.'/public/'.$udom.'/'.$uname.'/'. + "\n".'<link>'.$server.'/public/'.$udom.'/'.$uname.'/'. $filterfeedname.'_rss.html</link>'. "\n<description>". &mt('An RSS Feed provided by the LON-CAPA Learning Content Management System'). @@ -260,7 +342,7 @@ sub handler { my $newid = &get_new_feed_id(); # Is this user for real? my $homeserver=&Apache::lonnet::homeserver($uname,$udom); - if ($html) { + if ($html && !$blocked && !$disabled) { # Any new feeds or renaming of feeds? if ($edit) { # Hide a feed? @@ -289,10 +371,16 @@ sub handler { } if ($homeserver eq 'no_host') { $r->print(($html?'<h3>':'<title>').&mt('No feed available').($html?'</h3>':'')); + } elsif ($blocked) { + $r->print($blocktext); + $r->print(($html?&Apache::loncommon::end_page():''."\n")); + } elsif ($disabled) { + $r->print($disabletext); + $r->print(($html?&Apache::loncommon::end_page():''."\n")); } else { # is indeed a user # Course or user? my $name=''; - if ($uname=~/^\d/) { + if (&Apache::lonnet::is_course($udom,$uname)) { my %cenv=&Apache::lonnet::dump('environment',$udom,$uname); $name=$cenv{'description'}; } else { @@ -300,7 +388,7 @@ sub handler { } # Add a new feed if (($html) && ($edit)) { - $r->print('
    '); + $r->print(''); $r->print(&mt('Name for New Feed').": "); $r->print(''); $r->print('
    '); @@ -319,8 +407,10 @@ sub handler { 'status', 'enclosureurl', 'enclosuretype']); + # my ($id,$uname,$udom,$filename,$title,$description,$url,$status,$encurl,$enctype)=@_; + &editentry($env{'form.queryid'}, $uname,$udom,$filename, $env{'form.title'}, @@ -331,6 +421,8 @@ sub handler { $env{'form.enctype'} ); } + +# store away the fields modified in the online form my %newsfeed=&Apache::lonnet::dump($feedname,$udom,$uname); foreach my $entry (sort(keys(%newsfeed)),$env{'form.newid'}.'_status') { if ($entry=~/^(\d+)\_status$/) { @@ -339,7 +431,7 @@ sub handler { &editentry($id,$uname,$udom,$feedname, $env{'form.'.$id.'_title'}, $env{'form.'.$id.'_description'}, - $env{'form.'.$id.'_url'}, + $env{'form.'.$id.'_link'}, $env{'form.'.$id.'_status'}, $env{'form.'.$id.'_enclosureurl'}, $env{'form.'.$id.'_enclosuretype'}, @@ -347,24 +439,67 @@ sub handler { } } } + +# see if we have any uploaded or portfolio files + my @uploadeditems=(); + + if ($env{'form.HWFILE0_0'}) { +# We have an uploaded file - store it away. + $uploadeditems[0]=&Apache::lonnet::userfileupload('HWFILE0_0',undef,'portfolio/podcasts'); + } + if ($env{'form.HWPORT0_0'}) { +# Selected portfolio files + foreach my $filename (split(/\,/,$env{'form.HWPORT0_0'})) { + if ($filename) { +# construct full path and remember + push(@uploadeditems,'/uploaded/'.$env{'user.domain'}.'/'.$env{'user.name'}.'/portfolio'.$filename); + } + } + } +# the zeroth item should be stored together with the last displayed (newid) field + if ($uploadeditems[0]) { + my $id=$env{'form.newid'}; + &editentry($id,$uname,$udom,$feedname, + $env{'form.'.$id.'_title'}, + $env{'form.'.$id.'_description'}, + $env{'form.'.$id.'_link'}, + $env{'form.'.$id.'_status'}, + $uploadeditems[0], + &Apache::loncommon::filemimetype(($uploadeditems[0]=~/\.(\w+)$/)[0]), + ); + &Apache::lonnet::make_public_indefinitely($uploadeditems[0]); + } +# if there are more files, they need new entries, since each can only have one enclosure + for (my $i=1; $i<=$#uploadeditems; $i++) { + my $id = &get_new_feed_id().$i; + &editentry($id,$uname,$udom,$feedname, + 'New Entry', + '', + '', + 'public', + $uploadeditems[$i], + &Apache::loncommon::filemimetype(($uploadeditems[$i]=~/\.(\w+)$/)[0]), + ); + &Apache::lonnet::make_public_indefinitely($uploadeditems[$i]); + } } #done storing +# Render private items? + my $viewpubliconly=1; $r->print("\n". ($html?'

    ':''). &mt('LON-CAPA Feed "[_1]" for [_2]',$displayfeedname,$name). ($displayoption eq 'hidden'?' ('.&mt('Hidden').')':''). - ($html?'</h3>'.($edit?'<form method="post"><br />'. + ($html?'</h3>'.($edit?'<form method="post" name="lonhomework" enctype="multipart/form-data"><br />'. &mt('Name of this Feed'). ': <input type="text" size="50" name="newblogname" value="'. $displayfeedname.'" />':'').'<ul>':'')); -# Render private items? - my $viewpubliconly=1; if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) { $viewpubliconly=0; - } + } # Get feed items my %newsfeed=&Apache::lonnet::dump($feedname,$udom,$uname); - foreach my $entry (sort(keys(%newsfeed)),$newid.'_status') { + foreach my $entry (sort {$b cmp $a} (keys(%newsfeed)),$newid.'_status') { if ($entry=~/^(\d+)\_status$/) { # is an entry my $id=$1; if ($edit) { @@ -372,10 +507,21 @@ sub handler { 'private' => 'private', 'hidden' => 'hidden', 'delete' => 'delete', - 'store' => 'Store changes', + 'store' => 'Save changes', 'title' => 'Title', 'link' => 'Link', - 'description' => 'Description'); + 'description' => 'Description', + 'enc' => 'Podcasted enclosure'); + my $uploadlink; + if ($entry==$newid) { +# Generate upload link only for last (new) entry + $uploadlink=&Apache::inputtags::file_selector(0,0,'*','both'); + } else { +# Otherwise, display + $uploadlink=''.$newsfeed{$id.'_enclosureurl'}.''. + "". + ""; + } my %status=(); unless ($newsfeed{$id.'_status'}) { $newsfeed{$id.'_status'}='public'; } $status{$newsfeed{$id.'_status'}}='checked="checked"'; @@ -396,27 +542,37 @@ $lt{'title'}: $lt{'description'}:

    $lt{'link'}: - +
    +$lt{'enc'} - +$uploadlink
    ENDEDIT } else { # not in edit mode, just displaying if (($newsfeed{$id.'_status'} ne 'public') && ($viewpubliconly)) { next; } if ($newsfeed{$id.'_status'} eq 'hidden') { next; } + my $link = $newsfeed{$id.'_link'}; + if ($link =~ m|^/| ) { + $link = "http://".$ENV{'HTTP_HOST'}.$link; + } $r->print("\n".($html?"\n
  • ":"\n").$newsfeed{$id.'_title'}. ($html?"</b><br />\n":"\n"). $newsfeed{$id.'_description'}. - ($html?"
    \n".&mt('Read more')."
    \n"):"\n")); + ($html?"
    ":"    \n"). + ($link?($html?"\n".&mt('Read more')."
    \n"):"\n"):'')); + my $enclosure=$newsfeed{$id.'_enclosureurl'}; # Enclosure? Get stats - if ($newsfeed{$id.'_enclosureurl'}) { - my @stat=&Apache::lonnet::stat_file($newsfeed{$id.'_enclosureurl'}); + if ($enclosure) { + my @stat=&Apache::lonnet::stat_file($enclosure); if ($stat[7]) { # Has non-zero length (and exists) - my $enclosuretype=$newsfeed{$id.'_enclosetype'}; + my $enclosuretype=$newsfeed{$id.'_enclosuretype'}; + if ($enclosure =~ m|^/| ) { + $enclosure = "http://".$ENV{'HTTP_HOST'}.$enclosure; + } $r->print(($html?"".&mt('Enclosure')."":"' />")); } } @@ -431,7 +587,7 @@ ENDEDIT if ($html) { $r->print(''); if ($edit) { - $r->print(''. + $r->print(''. ($displayoption eq 'hidden'?'': '')); }