--- loncom/interface/lonrss.pm 2006/05/11 15:27:49 1.20
+++ loncom/interface/lonrss.pm 2006/12/09 23:33:55 1.32
@@ -1,7 +1,7 @@
# The LearningOnline Network
# RSS Feeder
#
-# $Id: lonrss.pm,v 1.20 2006/05/11 15:27:49 www Exp $
+# $Id: lonrss.pm,v 1.32 2006/12/09 23:33:55 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -29,6 +29,7 @@
package Apache::lonrss;
use strict;
+use LONCAPA;
use Apache::Constants qw(:common);
use Apache::loncommon;
use Apache::lonnet;
@@ -91,10 +92,11 @@ 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';
+ 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) {
$feeds.='<li><i>'.$feednames{$feed}.'</i><br />'.&mt('Hidden').': <a href="'.$htmlurl.'"><tt>'.$htmlurl.'</tt></a></li>';
@@ -138,7 +140,8 @@ sub editentry {
}
my $feedname=&feedname($filename);
&Apache::lonnet::put('nohist_all_rss_feeds',
- { &filterfeedname($filename) => &displayfeedname($filename,$uname,$udom) },
+ { &filterfeedname($filename) =>
+ (&displayfeedname($filename,$uname,$udom))[0] },
$udom,$uname);
return &Apache::lonnet::put($feedname,{
$id.'_title' => $title,
@@ -180,6 +183,80 @@ sub determine_enclosure_types {
return &Apache::loncommon::filemimetype($ending);
}
+sub course_blog_link {
+ my ($id,$title,$description,$url,$encurl,$enctype)=@_;
+ if ($env{'request.course.id'}) {
+ return &add_blog_entry_link($id,
+ $env{'course.'.$env{'request.course.id'}.'.num'},
+ $env{'course.'.$env{'request.course.id'}.'.domain'},
+ 'Course_Announcements',
+ $title,$description,$url,'public',$encurl,$enctype,
+ &mt('Add to Course Announcements'));
+ } else {
+ return '';
+ }
+}
+
+sub add_blog_entry_link {
+ my ($id,$uname,$udom,$filename,$title,$description,$url,$status,$encurl,$enctype,$linktext)=@_;
+ return "<a href='/adm/$udom/$uname/".&filterfeedname($filename).'_rss.html?queryid='.
+ &escape($id).
+ '&title='.&escape($title).
+ '&description='.&escape($description).
+ '&url='.&escape($url).
+ '&status='.&escape($status).
+ '&encurl='.&escape($encurl).
+ '&enctype='.&escape($enctype).
+ "'>".$linktext.'</a>';
+
+}
+
+sub blocking_blogdisplay {
+ my ($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.='<br />';}
+ 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) {
+ $output .= '<br />'.
+ &Apache::loncommon::build_block_table($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();
+ $output = '<title/><item><title/><description>'.$output."</description><link/><guid isPermaLink='false'>".$id.$filterfeedname.'_'.$udom.'_'.$uname.'</guid></item>';
+ }
+ }
+ return ($blocked,$output);
+}
+
sub handler {
my ($r) = @_;
@@ -190,6 +267,10 @@ sub handler {
$edit=1;
$html=1;
}
+ if (($mode eq 'adm') && (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
+ $edit=1;
+ $html=1;
+ }
if ($filename=~/\.html$/) {
$html=1;
}
@@ -206,25 +287,32 @@ sub handler {
my $filterfeedname=&filterfeedname($filename);
my $feedname=&feedname($filename);
my ($displayfeedname,$displayoption)=&displayfeedname($filename,$uname,$udom);
+ my ($blocked,$blocktext);
+ if (!&Apache::lonnet::is_course($udom,$uname)) {
+ ($blocked,$blocktext) = &blocking_blogdisplay($uname,$udom,$html,$filterfeedname);
+ }
if ($html) {
- $r->print(&Apache::loncommon::start_page(($displayfeedname?$displayfeedname:&mt("Available RSS Feeds and Blogs")),undef,
+ my $title = $displayfeedname?$displayfeedname
+ :"Available RSS Feeds and Blogs";
+ $r->print(&Apache::loncommon::start_page($title,undef,
{'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').
'</description>');
}
-# Do we have stuff to store?
+# This will be the entry id for new additions to the blog
my $newid = &get_new_feed_id();
# Is this user for real?
my $homeserver=&Apache::lonnet::homeserver($uname,$udom);
- if ($html) {
+ if ($html && !$blocked) {
# Any new feeds or renaming of feeds?
if ($edit) {
# Hide a feed?
@@ -253,10 +341,13 @@ sub handler {
}
if ($homeserver eq 'no_host') {
$r->print(($html?'<h3>':'<title>').&mt('No feed available').($html?'</h3>':'</title>'));
+ } elsif ($blocked) {
+ $r->print($blocktext);
+ $r->print(($html?&Apache::loncommon::end_page():'</channel></rss>'."\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 {
@@ -265,13 +356,36 @@ sub handler {
# Add a new feed
if (($html) && ($edit)) {
$r->print('<form method="post">');
- $r->print(&mt('Name for New Blog').": <input type='text' size='40' name='namenewblog' />");
- $r->print('<input type="submit" value="'.&mt('Start a New Blog').'" />');
+ $r->print(&mt('Name for New Feed').": <input type='text' size='40' name='namenewblog' />");
+ $r->print('<input type="submit" value="'.&mt('Start a New Feed').'" />');
$r->print('</form>');
}
if ($displayfeedname) { # this is an existing feed
# Anything to store?
if ($edit) {
+# check if this was called with a query string
+ &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['queryid']);
+ if ($env{'form.queryid'}) {
+# yes, collect the remainder
+ &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+ ['title',
+ 'description',
+ 'url',
+ 'status',
+ 'enclosureurl',
+ 'enclosuretype']);
+# my ($id,$uname,$udom,$filename,$title,$description,$url,$status,$encurl,$enctype)=@_;
+
+ &editentry($env{'form.queryid'},
+ $uname,$udom,$filename,
+ $env{'form.title'},
+ $env{'form.description'},
+ $env{'form.url'},
+ $env{'form.status'},
+ $env{'form.encurl'},
+ $env{'form.enctype'}
+ );
+ }
my %newsfeed=&Apache::lonnet::dump($feedname,$udom,$uname);
foreach my $entry (sort(keys(%newsfeed)),$env{'form.newid'}.'_status') {
if ($entry=~/^(\d+)\_status$/) {
@@ -280,26 +394,29 @@ sub handler {
&editentry($id,$uname,$udom,$feedname,
$env{'form.'.$id.'_title'},
$env{'form.'.$id.'_description'},
- $env{'form.'.$id.'_url'},
- $env{'form.'.$id.'_status'});
+ $env{'form.'.$id.'_link'},
+ $env{'form.'.$id.'_status'},
+ $env{'form.'.$id.'_enclosureurl'},
+ $env{'form.'.$id.'_enclosuretype'},
+ );
}
}
}
} #done storing
+# Render private items?
+ my $viewpubliconly=1;
$r->print("\n".
($html?'<hr /><h3>':'<title>').
&mt('LON-CAPA Feed "[_1]" for [_2]',$displayfeedname,$name).
($displayoption eq 'hidden'?' ('.&mt('Hidden').')':'').
($html?'</h3>'.($edit?'<form method="post"><br />'.
- &mt('Name of blog/journal').
+ &mt('Name of this Feed').
': <input type="text" size="50" name="newblogname" value="'.
$displayfeedname.'" />':'').'<ul>':'</title>'));
-# 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') {
@@ -340,12 +457,16 @@ 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<li><b>":"<item>\n<title>").$newsfeed{$id.'_title'}.
($html?"</b><br />\n":"</title>\n<description>").
$newsfeed{$id.'_description'}.
($html?"<br />\n<a href='":"</description>\n<link>").
- "http://".$ENV{'HTTP_HOST'}.
- $newsfeed{$id.'_link'}.
+
+ $link.
($html?("'>".&mt('Read more')."</a><br />\n"):"</link>\n"));
# Enclosure? Get stats
if ($newsfeed{$id.'_enclosureurl'}) {