--- loncom/interface/lonrss.pm 2005/11/18 19:32:05 1.4
+++ loncom/interface/lonrss.pm 2006/10/02 16:47:57 1.28
@@ -1,7 +1,7 @@
# The LearningOnline Network
# RSS Feeder
#
-# $Id: lonrss.pm,v 1.4 2005/11/18 19:32:05 albertel Exp $
+# $Id: lonrss.pm,v 1.28 2006/10/02 16:47:57 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;
@@ -36,10 +37,13 @@ use Apache::lontexconvert;
use Apache::lonlocal;
use Apache::lonhtmlcommon;
+
sub filterfeedname {
my $filename=shift;
- $filename=~s/\.rss$//;
+ $filename=~s/(\_rss\.html|\.rss)$//;
$filename=~s/\W//g;
+ $filename=~s/\_rssfeed$//;
+ $filename=~s/^nohist\_//;
return $filename;
}
@@ -51,8 +55,8 @@ sub displayfeedname {
my ($rawname,$uname,$udom)=@_;
my $filterfilename=&filterfeedname($rawname);
# do we have a stored name?
- my %stored=&Apache::lonnet::get('nohist_all_rss_feeds',[$filterfilename],$udom,$uname);
- if ($stored{$filterfilename}) { return $stored{$filterfilename}; }
+ my %stored=&Apache::lonnet::get('nohist_all_rss_feeds',[$filterfilename,'feed_display_option_'.$filterfilename],$udom,$uname);
+ if ($stored{$filterfilename}) { return ($stored{$filterfilename},$stored{'feed_display_option_'.$filterfilename}); }
# no, construct a name
my $name=$filterfilename;
if ($name=~/^CourseBlog/) {
@@ -63,25 +67,44 @@ sub displayfeedname {
} else {
$name=~s/\_/ /g;
}
- return $name;
+ return ($name,$stored{'feed_display_option_'.$filterfilename});
}
-sub renamefeed {
+sub namefeed {
my ($rawname,$uname,$udom,$newname)=@_;
return &Apache::lonnet::put('nohist_all_rss_feeds',
{ &filterfeedname($rawname) => $newname },
$udom,$uname);
}
+sub changefeeddisplay {
+ my ($rawname,$uname,$udom,$newstatus)=@_;
+ return &Apache::lonnet::put('nohist_all_rss_feeds',
+ { 'feed_display_option_'.&filterfeedname($rawname) => $newstatus },
+ $udom,$uname);
+}
+
sub advertisefeeds {
- my ($uname,$udom)=@_;
+ my ($uname,$udom,$edit)=@_;
my $feeds='';
my %feednames=&Apache::lonnet::dump('nohist_all_rss_feeds',$udom,$uname);
+ my $mode='public';
+ if ($edit) {
+ $mode='adm';
+ }
foreach my $feed (sort(keys(%feednames))) {
- if ($feed!~/^error\:/) {
- my $url='feed://'.$ENV{'HTTP_HOST'}.'/public/'.$udom.'/'.$uname.'/'.$feed.'.rss';
- $feeds.='
'.
- $feednames{$feed}.' '.$url.' ';
+ if (($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.' ';
+ }
}
}
if ($feeds) {
@@ -91,27 +114,39 @@ sub advertisefeeds {
}
}
+sub rss_link {
+ my ($url) = @_;
+ return qq| |;
+}
+
{
my $feedcounter;
- sub addentry {
+ sub get_new_feed_id {
$feedcounter++;
- my $id=time.'00000'.$$.'00000'.$feedcounter;
- return &editentry($id,@_);
+ return time().'00000'.$$.'00000'.$feedcounter;
}
}
+sub addentry {
+ 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) },
+ { &filterfeedname($filename) =>
+ (&displayfeedname($filename,$uname,$udom))[0] },
$udom,$uname);
return &Apache::lonnet::put($feedname,{
$id.'_title' => $title,
$id.'_description' => $description,
$id.'_link' => $url,
$id.'_enclosureurl' => $encurl,
- $id.'_enclosurelength' => $enclength,
$id.'_enclosuretype' => $enctype,
$id.'_status' => $status},$udom,$uname);
}
@@ -124,7 +159,6 @@ sub changestatus {
$id.'_description',
$id.'_link',
$id.'_enclosureurl',
- $id.'_enclosurelength',
$id.'_enclosuretype',
$id.'_status'],$udom,$uname);
} else {
@@ -132,24 +166,130 @@ sub changestatus {
}
}
+sub changed_js {
+ return <
+ function changed(tform,id) {
+ tform.elements[id+"_modified"].checked=true;
+ }
+
+ENDSCRIPT
+}
+
+sub determine_enclosure_types {
+ my ($url)=@_;
+ my ($ending)=($url=~/\.(\w+)$/);
+ return &Apache::loncommon::filemimetype($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 "".$linktext.' ';
+
+}
+
sub handler {
- my $r = shift;
- &Apache::loncommon::content_type($r,'application/rss+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;
+ $html=1;
+ }
+ if (($mode eq 'adm') && (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
+ $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);
- $r->print("\n".
- "\n http://".$ENV{'HTTP_HOST'}.'/'.
- "\n".&mt('An RSS Feed provided by the LON-CAPA Learning Content Management System').' ');
+ my ($displayfeedname,$displayoption)=&displayfeedname($filename,$uname,$udom);
+ if ($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'}}).
+ &changed_js());
+ } else { # render RSS
+ $r->print("\n".
+ "\n http://".$ENV{'HTTP_HOST'}.'/public/'.$udom.'/'.$uname.'/'.
+ $filterfeedname.'_rss.html'.
+ "\n".
+ &mt('An RSS Feed provided by the LON-CAPA Learning Content Management System').
+ ' ');
+ }
+# 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);
+ my $homeserver=&Apache::lonnet::homeserver($uname,$udom);
+ if ($html) {
+# Any new feeds or renaming of feeds?
+ if ($edit) {
+# Hide a feed?
+ if ($env{'form.hidethisblog'}) {
+ &changefeeddisplay($feedname,$uname,$udom,'hidden');
+ ($displayfeedname,$displayoption)=&displayfeedname($filename,$uname,$udom);
+ }
+# Advertise a feed?
+ if ($env{'form.advertisethisblog'}) {
+ &changefeeddisplay($feedname,$uname,$udom,'public');
+ ($displayfeedname,$displayoption)=&displayfeedname($filename,$uname,$udom);
+ }
+# New feed?
+ if ($env{'form.namenewblog'}=~/\w/) {
+ &namefeed($env{'form.namenewblog'},$uname,$udom,$env{'form.namenewblog'});
+ }
+# Old feed that is being renamed?
+ if (($displayfeedname) && ($env{'form.newblogname'}=~/\w/)) {
+ if ($env{'form.newblogname'} ne $displayfeedname) {
+ &namefeed($feedname,$uname,$udom,$env{'form.newblogname'});
+ ($displayfeedname,$displayoption)=&displayfeedname($filename,$uname,$udom);
+ }
+ }
+ }
+ $r->print(&advertisefeeds($uname,$udom,$edit));
+ }
if ($homeserver eq 'no_host') {
- $r->print(''.&mt('No feed available').' ');
- } else {
+ $r->print(($html?'':'').&mt('No feed available').($html?' ':''));
+ } else { # is indeed a user
# Course or user?
my $name='';
if ($uname=~/^\d/) {
@@ -158,33 +298,152 @@ sub handler {
} else {
$name=&Apache::loncommon::nickname($uname,$udom);
}
- $r->print("\n".&mt('LON-CAPA RSS Feed "[_1]" for [_2]',$displayfeedname,$name).' ');
-# Render private items?
- my $viewpubliconly=1;
- if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
- $viewpubliconly=0;
+# Add a new feed
+ if (($html) && ($edit)) {
+ $r->print('');
}
+ if ($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 ($entry=~/^(\d+)\_status$/) {
+ my $id=$1;
+ if ($env{'form.'.$id.'_modified'}) {
+ &editentry($id,$uname,$udom,$feedname,
+ $env{'form.'.$id.'_title'},
+ $env{'form.'.$id.'_description'},
+ $env{'form.'.$id.'_link'},
+ $env{'form.'.$id.'_status'},
+ $env{'form.'.$id.'_enclosureurl'},
+ $env{'form.'.$id.'_enclosuretype'},
+ );
+ }
+ }
+ }
+ } #done storing
+
+ $r->print("\n".
+ ($html?'':'').
+ &mt('LON-CAPA Feed "[_1]" for [_2]',$displayfeedname,$name).
+ ($displayoption eq 'hidden'?' ('.&mt('Hidden').')':'').
+ ($html?' '.($edit?' \n");
+ } # was a real display feedname
+ $r->print(($html?''.&Apache::loncommon::end_page():' '."\n"));
+ } # a real user
return OK;
-}
-
+} # end handler
1;
__END__