--- loncom/interface/lonrss.pm 2005/11/18 13:35:30 1.2
+++ loncom/interface/lonrss.pm 2006/04/22 20:58:32 1.17
@@ -1,7 +1,7 @@
# The LearningOnline Network
# RSS Feeder
#
-# $Id: lonrss.pm,v 1.2 2005/11/18 13:35:30 www Exp $
+# $Id: lonrss.pm,v 1.17 2006/04/22 20:58:32 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -36,12 +36,13 @@ use Apache::lontexconvert;
use Apache::lonlocal;
use Apache::lonhtmlcommon;
-my $feedcounter=0;
sub filterfeedname {
my $filename=shift;
- $filename=~s/\.rss$//;
+ $filename=~s/(\_rss\.html|\.rss)$//;
$filename=~s/\W//g;
+ $filename=~s/\_rssfeed$//;
+ $filename=~s/^nohist\_//;
return $filename;
}
@@ -76,14 +77,20 @@ sub renamefeed {
}
sub advertisefeeds {
- my ($uname,$udom)=@_;
+ my ($uname,$udom,$edit)=@_;
my $feeds='';
my %feednames=&Apache::lonnet::dump('nohist_all_rss_feeds',$udom,$uname);
- foreach (sort keys %feednames) {
- if ($_!~/^error\:/) {
- my $url='feed://'.$ENV{'HTTP_HOST'}.'/public/'.$udom.'/'.$uname.'/'.$_.'.rss';
- $feeds.='<li><a href="'.$url.'">'.
- $feednames{$_}.'</a><br /><tt>'.$url.'</tt></li>';
+ my $mode='public';
+ if ($edit) {
+ $mode='adm';
+ }
+ foreach my $feed (sort(keys(%feednames))) {
+ if ($feed!~/^error\:/) {
+ my $feedurl='http://'.$ENV{'HTTP_HOST'}.'/public/'.$udom.'/'.$uname.'/'.$feed.'.rss';
+ my $htmlurl='http://'.$ENV{'HTTP_HOST'}.'/'.$mode.'/'.$udom.'/'.$uname.'/'.$feed.'_rss.html';
+ $feeds.='<li>'.$feednames{$feed}.
+ '<br />'.($edit?&mt('Edit'):'HTML').': <a href="'.$htmlurl.'"><tt>'.$htmlurl.'</tt></a>'.
+ ($edit?'':'<br />RSS: <a href="'.$feedurl.'"><tt>'.$feedurl.'</tt></a>').'</li>';
}
}
if ($feeds) {
@@ -93,14 +100,29 @@ sub advertisefeeds {
}
}
+sub rss_link {
+ my ($url) = @_;
+ return qq|<link rel="alternate" type="application/rss+xml" title="Course Announcements" href="$url" />|;
+}
+
+{
+ my $feedcounter;
+ sub get_new_feed_id {
+ $feedcounter++;
+ return time().'00000'.$$.'00000'.$feedcounter;
+ }
+}
+
sub addentry {
- $feedcounter++;
- my $id=time.'00000'.$$.'00000'.$feedcounter;
+ my $id=&get_new_feed_id();
return &editentry($id,@_);
}
sub editentry {
- my ($id,$uname,$udom,$filename,$title,$description,$url,$status,$encurl,$enclength,$enctype)=@_;
+ my ($id,$uname,$udom,$filename,$title,$description,$url,$status,$encurl,$enctype)=@_;
+ if ($status eq 'deleted') {
+ return &changestatus($id,$uname,$udom,$filename,$status);
+ }
my $feedname=&feedname($filename);
&Apache::lonnet::put('nohist_all_rss_feeds',
{ &filterfeedname($filename) => &displayfeedname($filename,$uname,$udom) },
@@ -110,7 +132,6 @@ sub editentry {
$id.'_description' => $description,
$id.'_link' => $url,
$id.'_enclosureurl' => $encurl,
- $id.'_enclosurelength' => $enclength,
$id.'_enclosuretype' => $enctype,
$id.'_status' => $status},$udom,$uname);
}
@@ -123,7 +144,6 @@ sub changestatus {
$id.'_description',
$id.'_link',
$id.'_enclosureurl',
- $id.'_enclosurelength',
$id.'_enclosuretype',
$id.'_status'],$udom,$uname);
} else {
@@ -131,23 +151,86 @@ sub changestatus {
}
}
+sub changed_js {
+ return <<ENDSCRIPT;
+<script type="text/javascript">
+ function changed(tform,id) {
+ tform.elements[id+"_modified"].checked=true;
+ }
+</script>
+ENDSCRIPT
+}
+
+sub determine_enclosure_types {
+ my ($url)=@_;
+ my ($ending)=($url=~/\.(\w+)$/);
+ return &Apache::loncommon::filemimetype($ending);
+}
+
sub handler {
- my $r = shift;
- &Apache::loncommon::content_type($r,'text/xml');
+ my ($r) = @_;
+
+ my $edit=0;
+ my $html=0;
+ my (undef,$mode,$udom,$uname,$filename)=split(/\//,$r->uri);
+ if (($mode eq 'adm') && ($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
+ $edit=1;
+ $html=1;
+ }
+ if ($filename=~/\.html$/) {
+ $html=1;
+ }
+ if ($html) {
+ &Apache::loncommon::content_type($r,'text/html');
+ } else {
+# Workaround Mozilla/Firefox
+# &Apache::loncommon::content_type($r,'application/rss+xml');
+ &Apache::loncommon::content_type($r,'text/xml');
+ }
$r->send_http_header;
return OK if $r->header_only;
- my (undef,undef,$udom,$uname,$filename)=split(/\//,$r->uri);
my $filterfeedname=&filterfeedname($filename);
my $feedname=&feedname($filename);
my $displayfeedname=&displayfeedname($filename,$uname,$udom);
- $r->print("<rss version='2.0' xmlns:dc='http://purl.org/dc/elements/1.1'>\n<channel>".
- "\n<link>http://".$ENV{'HTTP_HOST'}.'/</link>'.
- "\n<description>".&mt('An RSS Feed provided by the LON-CAPA Learning Content Management System').'</description>');
+ if ($html) {
+ $r->print(&Apache::loncommon::start_page($displayfeedname,undef,
+ {'domain' => $udom,
+ 'force_register' =>
+ $env{'form.register'}}).
+ &changed_js());
+ } else {
+ $r->print("<rss version='2.0' xmlns:dc='http://purl.org/dc/elements/1.1'>\n<channel>".
+ "\n<link>http://".$ENV{'HTTP_HOST'}.'/public/'.$udom.'/'.$uname.'/'.
+ $filterfeedname.'_rss.html</link>'.
+ "\n<description>".
+ &mt('An RSS Feed provided by the LON-CAPA Learning Content Management System').
+ '</description>');
+ }
+# Do we have stuff to store?
+ if ($edit) {
+ my %newsfeed=&Apache::lonnet::dump($feedname,$udom,$uname);
+ foreach my $entry (sort(keys(%newsfeed)),$env{'form.newid'}.'_status') {
+ if ($entry=~/^(\d+)\_status$/) {
+ my $id=$1;
+ if ($env{'form.'.$id.'_modified'}) {
+ &editentry($id,$uname,$udom,$feedname,
+ $env{'form.'.$id.'_title'},
+ $env{'form.'.$id.'_description'},
+ $env{'form.'.$id.'_url'},
+ $env{'form.'.$id.'_status'});
+ }
+ }
+ }
+ }
+ my $newid = &get_new_feed_id();
# Is this user for real?
- my $homeserver=&Apache::lonnet::homeserver($uname,$udom);
+ my $homeserver=&Apache::lonnet::homeserver($uname,$udom);
+ if ($html) {
+ $r->print(&advertisefeeds($uname,$udom,$edit));
+ }
if ($homeserver eq 'no_host') {
- $r->print('<title>'.&mt('No feed available').'</title>');
+ $r->print(($html?'<h3>':'<title>').&mt('No feed available').($html?'</h3>':'</title>'));
} else {
# Course or user?
my $name='';
@@ -157,7 +240,13 @@ sub handler {
} else {
$name=&Apache::loncommon::nickname($uname,$udom);
}
- $r->print("\n<title>".&mt('LON-CAPA RSS Feed "[_1]" for [_2]',$displayfeedname,$name).'</title>');
+ $r->print("\n".
+ ($html?'<h3>':'<title>').
+ &mt('LON-CAPA Feed "[_1]" for [_2]',$displayfeedname,$name).
+ ($html?'</h3>'.($edit?'<form method="post"><br />'.
+ &mt('Name of blog/journal').
+ ': <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 $udom)) {
@@ -165,25 +254,67 @@ sub handler {
}
# Get feed items
my %newsfeed=&Apache::lonnet::dump($feedname,$udom,$uname);
- foreach (sort keys %newsfeed) {
- if ($_=~/^(\d+)\_status$/) {
+ foreach my $entry (sort(keys(%newsfeed)),$newid.'_status') {
+ if ($entry=~/^(\d+)\_status$/) {
my $id=$1;
- if (($newsfeed{$id.'_status'} ne 'public') && ($viewpubliconly)) { next; }
- if ($newsfeed{$id.'_status'} eq 'hidden') { next; }
- $r->print("\n<item>\n<title>".$newsfeed{$id.'_title'}."</title>\n<description>".
- $newsfeed{$id.'_description'}."</description>\n<link>".
- $newsfeed{$id.'_link'}."</link>\n");
- if ($newsfeed{$id.'_enclosureurl'}) {
- $r->print("\n<enclosure url='".$newsfeed{$id.'_enclosureurl'}."' length='".$newsfeed{$id.'_enclosurelength'}.
- "' type='".$newsfeed{$id.'_enclosuretype'}."' />");
+ if ($edit) {
+ my %lt=&Apache::lonlocal::texthash('public' => 'public',
+ 'private' => 'private',
+ 'hidden' => 'hidden',
+ 'delete' => 'delete',
+ 'store' => 'Store changes');
+ my %status=();
+ unless ($newsfeed{$id.'_status'}) { $newsfeed{$id.'_status'}='public'; }
+ $status{$newsfeed{$id.'_status'}}='checked="checked"';
+ $r->print(<<ENDEDIT);
+<li>
+<label><input name='$id\_modified' type='checkbox' value="modified" /> $lt{'store'}</label>
+
+<label><input name='$id\_status' type="radio" value="public" $status{'public'} onClick="changed(this.form,'$id');" /> $lt{'public'}</label>
+
+<label><input name='$id\_status' type="radio" value="private" $status{'private'} onClick="changed(this.form,'$id');" /> $lt{'private'}</label>
+
+<label><input name='$id\_status' type="radio" value="hidden" $status{'hidden'} onClick="changed(this.form,'$id');" /> $lt{'hidden'}</label>
+
+<label><input name='$id\_status' type="radio" value="deleted" onClick="changed(this.form,'$id');" /> $lt{'delete'}</label>
+<br />
+<input name='$id\_title' type='text' size='80' value='$newsfeed{$id.'_title'}' onChange="changed(this.form,'$id');" /><br />
+<textarea name='$id\_description' rows="6" cols="80" onChange="changed(this.form,'$id');">$newsfeed{$id.'_description'}</textarea><br />
+<input name='$id\_link' type='text' size='80' value='$newsfeed{$id.'_link'}' onChange="changed(this.form,'$id');" />
+<hr /></li>
+ENDEDIT
+ } else {
+ if (($newsfeed{$id.'_status'} ne 'public') && ($viewpubliconly)) { next; }
+ if ($newsfeed{$id.'_status'} eq 'hidden') { next; }
+ $r->print("\n".($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'}.
+ ($html?("'>".&mt('Read more')."</a><br />\n"):"</link>\n"));
+# Enclosure? Get stats
+ if ($newsfeed{$id.'_enclosureurl'}) {
+ my @stat=&Apache::lonnet::stat_file($newsfeed{$id.'_enclosureurl'});
+ if ($stat[7]) {
+# Has non-zero length (and exists)
+ my $enclosuretype=$newsfeed{$id.'_enclosetype'};
+ $r->print(($html?"<a href='":"\n<enclosure url='").
+ $newsfeed{$id.'_enclosureurl'}."' length='".$stat[7].
+ "' type='".$enclosuretype.($html?"'>".&mt('Enclosure')."</a>":"' />"));
+ }
+ }
+ if ($html) {
+ $r->print("\n<hr /></li>\n");
+ } else {
+ $r->print("\n<guid isPermaLink='false'>".$id.$filterfeedname.'_'.$udom.'_'.$uname."</guid></item>\n");
+ }
}
- $r->print("\n<guid>".$id.$filterfeedname.'_'.$udom.'_'.$uname."</guid></item>\n");
}
}
}
- $r->print("\n</channel></rss>\n");
+ $r->print("\n".($html?'</ul>'.($edit?'<input type="hidden" name="newid" value="'.$newid.'"/><input type="submit" value="'.&mt('Store Marked Changes').'" /></form>':'').&Apache::loncommon::end_page():'</channel></rss>'."\n"));
return OK;
}
-
1;
__END__