6 public static function checkPurge( $timekey, $key ) {
7 global $wgRequest, $wgUser, $messageMemc;
8 $purge = $wgRequest->getVal( 'action' ) === 'purge';
9 if ( $purge && $wgUser->isAllowed('purge') ) {
10 $messageMemc->delete( $timekey );
11 $messageMemc->delete( $key );
15 public static function checkFeedOutput( $type ) {
16 global $wgFeed, $wgOut, $wgFeedClasses;
20 $wgOut->addWikiMsg( 'feed-unavailable' );
24 if( !isset( $wgFeedClasses[$type] ) ) {
25 wfHttpError( 500, "Internal Server Error", "Unsupported feed type." );
33 * Format a diff for the newsfeed
35 public static function formatDiff( $row ) {
38 $titleObj = Title
::makeTitle( $row->rc_namespace
, $row->rc_title
);
39 $timestamp = wfTimestamp( TS_MW
, $row->rc_timestamp
);
41 if( $row->rc_type
== RC_LOG
) {
42 if( $row->rc_deleted
& LogPage
::DELETED_ACTION
) {
43 $actiontext = wfMsgHtml('rev-deleted-event');
45 $actiontext = LogPage
::actionText( $row->rc_log_type
, $row->rc_log_action
,
46 $titleObj, $wgUser->getSkin(), LogPage
::extractParams($row->rc_params
,true,true) );
49 return self
::formatDiffRow( $titleObj,
50 $row->rc_last_oldid
, $row->rc_this_oldid
,
52 ($row->rc_deleted
& Revision
::DELETED_COMMENT
) ?
wfMsgHtml('rev-deleted-comment') : $row->rc_comment
,
56 public static function formatDiffRow( $title, $oldid, $newid, $timestamp, $comment, $actiontext='' ) {
57 global $wgFeedDiffCutoff, $wgContLang, $wgUser;
58 wfProfileIn( __FUNCTION__
);
60 $skin = $wgUser->getSkin();
63 $comment = "$actiontext $comment";
65 $completeText = '<p>' . $skin->formatComment( $comment ) . "</p>\n";
67 //NOTE: Check permissions for anonymous users, not current user.
68 // No "privileged" version should end up in the cache.
69 // Most feed readers will not log in anway.
71 $accErrors = $title->getUserPermissionsErrors( 'read', $anon, true );
73 if( $title->getNamespace() >= 0 && !$accErrors ) {
75 wfProfileIn( __FUNCTION__
."-dodiff" );
77 $de = new DifferenceEngine( $title, $oldid, $newid );
78 #$diffText = $de->getDiff( wfMsg( 'revisionasof',
79 # $wgContLang->timeanddate( $timestamp ) ),
80 # wfMsg( 'currentrev' ) );
81 $diffText = $de->getDiff(
82 wfMsg( 'previousrevision' ), // hack
83 wfMsg( 'revisionasof',
84 $wgContLang->timeanddate( $timestamp ) ) );
87 if ( strlen( $diffText ) > $wgFeedDiffCutoff ) {
89 $diffLink = $title->escapeFullUrl(
92 $diffText = '<a href="' .
95 htmlspecialchars( wfMsgForContent( 'difference' ) ) .
97 } elseif ( $diffText === false ) {
98 // Error in diff engine, probably a missing revision
99 $diffText = "<p>Can't load revision $newid</p>";
101 // Diff output fine, clean up any illegal UTF-8
102 $diffText = UtfNormal
::cleanUp( $diffText );
103 $diffText = self
::applyDiffStyle( $diffText );
105 wfProfileOut( __FUNCTION__
."-dodiff" );
107 $rev = Revision
::newFromId( $newid );
108 if( is_null( $rev ) ) {
111 $newtext = $rev->getText();
113 $diffText = '<p><b>' . wfMsg( 'newpage' ) . '</b></p>' .
114 '<div>' . nl2br( htmlspecialchars( $newtext ) ) . '</div>';
116 $completeText .= $diffText;
119 wfProfileOut( __FUNCTION__
);
120 return $completeText;
124 * Hacky application of diff styles for the feeds.
125 * Might be 'cleaner' to use DOM or XSLT or something,
126 * but *gack* it's a pain in the ass.
128 * @param $text String:
132 public static function applyDiffStyle( $text ) {
134 'diff' => 'background-color: white; color:black;',
135 'diff-otitle' => 'background-color: white; color:black;',
136 'diff-ntitle' => 'background-color: white; color:black;',
137 'diff-addedline' => 'background: #cfc; color:black; font-size: smaller;',
138 'diff-deletedline' => 'background: #ffa; color:black; font-size: smaller;',
139 'diff-context' => 'background: #eee; color:black; font-size: smaller;',
140 'diffchange' => 'color: red; font-weight: bold; text-decoration: none;',
143 foreach( $styles as $class => $style ) {
144 $text = preg_replace( "/(<[^>]+)class=(['\"])$class\\2([^>]*>)/",
145 "\\1style=\"$style\"\\3", $text );