Send cache-control headers with feeds, this makes 304 responses possible
[lhc/web/wiklou.git] / includes / SpecialRecentchanges.php
1 <?php
2
3 include_once( "Feed.php" );
4
5 function wfSpecialRecentchanges( $par )
6 {
7 global $wgUser, $wgOut, $wgLang, $wgTitle, $wgMemc, $wgDBname;
8 global $wgRequest, $wgSitename, $wgLanguageCode;
9 global $days, $hideminor, $from, $hidebots, $hideliu; # From query string
10 $fname = "wfSpecialRecentchanges";
11
12 $feedFormat = $wgRequest->getVal( "feed" );
13 $feeding = ( $feedFormat == "rss" );
14
15 if( $par ) {
16 $bits = preg_split( '/\s*,\s*/', trim( $par ) );
17 if( in_array( "hidebots", $bits ) ) $hidebots = 1;
18 if( in_array( "bots", $bits ) ) $hidebots = 0;
19 if( in_array( "hideminor", $bits ) ) $hideminor = 1;
20 if( in_array( "minor", $bits ) ) $hideminor = 0;
21 if( in_array( "hideliu", $bits) ) $hideliu = 1;
22 }
23
24 $sql = "SELECT MAX(rc_timestamp) AS lastmod FROM recentchanges";
25 $res = wfQuery( $sql, DB_READ, $fname );
26 $s = wfFetchObject( $res );
27 # 10 seconds server-side caching max
28 $wgOut->setSquidMaxage( 10 );
29 if( $wgOut->checkLastModified( $s->lastmod ) ){
30 # Client cache fresh and headers sent, nothing more to do.
31 return;
32 }
33
34 $rctext = wfMsg( "recentchangestext" );
35
36 # The next few lines can probably be commented out now that wfMsg can get text from the DB
37 $sql = "SELECT cur_text FROM cur WHERE cur_namespace=4 AND cur_title='Recentchanges'";
38 $res = wfQuery( $sql, DB_READ, $fname );
39 if( ( $s = wfFetchObject( $res ) ) and ( $s->cur_text != "" ) ) {
40 $rctext = $s->cur_text;
41 }
42
43 $wgOut->addWikiText( $rctext );
44
45 if ( ! $days ) {
46 $days = $wgUser->getOption( "rcdays" );
47 if ( ! $days ) { $days = 3; }
48 }
49 $days = (int)$days;
50 list( $limit, $offset ) = wfCheckLimits( 100, "rclimit" );
51 $now = wfTimestampNow();
52 $cutoff_unixtime = time() - ( $days * 86400 );
53 $cutoff_unixtime = $cutoff_unixtime - ($cutoff_unixtime % 86400);
54 $cutoff = wfUnix2Timestamp( $cutoff_unixtime );
55 if(preg_match('/^[0-9]{14}$/', $from) and $from > $cutoff) {
56 $cutoff = $from;
57 } else {
58 unset($from);
59 }
60
61 $sk = $wgUser->getSkin();
62 $showhide = array( wfMsg( "show" ), wfMsg( "hide" ));
63
64 if ( ! isset( $hideminor ) ) {
65 $hideminor = $wgUser->getOption( "hideminor" );
66 }
67 $hideminor = ($hideminor ? 1 : 0);
68 if ( $hideminor ) {
69 $hidem = "AND rc_minor=0";
70 } else {
71 $hidem = "";
72 }
73
74 if ( !isset( $hidebots ) ) {
75 $hidebots = 1;
76 }
77 if( $hidebots ) {
78 $hidem .= " AND rc_bot=0";
79 }
80 $hidebots = ($hidebots ? 1 : 0);
81
82 if ( !isset( $hideliu ) ) {
83 $hideliu = 0;
84 }
85 if ( $hideliu ) {
86 $hidem .= " AND rc_user=0";
87 }
88 $hideliu = ($hideliu ? 1 : 0);
89 #$hideparams = "hideminor={$hideminor}&hideliu={$hideliu}&hidebots={$hidebots}";
90 $urlparams = array( "hideminor" => $hideminor, "hideliu" => $hideliu, "hidebots" => $hidebots );
91 $hideparams = wfArrayToCGI( $urlparams );
92
93 $minorLink = $sk->makeKnownLink( $wgLang->specialPage( "Recentchanges" ),
94 $showhide[1-$hideminor], wfArrayToCGI( array( "hideminor" => 1-$hideminor ), $urlparams ) );
95 $botLink = $sk->makeKnownLink( $wgLang->specialPage( "Recentchanges" ),
96 $showhide[1-$hidebots], wfArrayToCGI( array( "hidebots" => 1-$hidebots ), $urlparams ) );
97 $liuLink = $sk->makeKnownLink( $wgLang->specialPage( "Recentchanges" ),
98 $showhide[1-$hideliu], wfArrayToCGI( array( "hideliu" => 1-$hideliu ), $urlparams ) );
99
100 $uid = $wgUser->getID();
101 $sql2 = "SELECT recentchanges.*" . ($uid ? ",wl_user" : "") . " FROM recentchanges " .
102 ($uid ? "LEFT OUTER JOIN watchlist ON wl_user={$uid} AND wl_title=rc_title AND wl_namespace=rc_namespace & 65534 " : "") .
103 "WHERE rc_timestamp > '{$cutoff}' {$hidem} " .
104 "ORDER BY rc_timestamp DESC LIMIT {$limit}";
105
106 $res = wfQuery( $sql2, DB_READ, $fname );
107 $rows = array();
108 while( $row = wfFetchObject( $res ) ){
109 $rows[] = $row;
110 }
111
112 if(isset($from)) {
113 $note = wfMsg( "rcnotefrom", $wgLang->formatNum( $limit ),
114 $wgLang->timeanddate( $from, true ) );
115 } else {
116 $note = wfMsg( "rcnote", $wgLang->formatNum( $limit ), $wgLang->formatNum( $days ) );
117 }
118 $wgOut->addHTML( "\n<hr>\n{$note}\n<br>" );
119
120 $note = rcDayLimitLinks( $days, $limit, "Recentchanges", $hideparams, false, $minorLink, $botLink, $liuLink );
121
122 $note .= "<br>\n" . wfMsg( "rclistfrom",
123 $sk->makeKnownLink( $wgLang->specialPage( "Recentchanges" ),
124 $wgLang->timeanddate( $now, true ), "{$hideparams}&from=$now" ) );
125
126 $wgOut->addHTML( "{$note}\n" );
127
128 if( $feeding ) {
129 $feed = new RSSFeed(
130 $wgSitename . " - " . wfMsg( "recentchanges" ) . " [" . $wgLanguageCode . "]",
131 htmlspecialchars( wfMsg( "recentchangestext" ) ),
132 $wgTitle->getFullUrl() );
133 $feed->outHeader();
134 foreach( $rows as $obj ) {
135 $title = Title::makeTitle( $obj->rc_namespace, $obj->rc_title );
136 $item = new FeedItem(
137 $title->getPrefixedText(),
138 htmlspecialchars( $obj->rc_comment ),
139 $title->getFullURL(),
140 $obj->rc_timestamp,
141 $obj->rc_user_text );
142 $feed->outItem( $item );
143 }
144 $feed->outFooter();
145 } else {
146 $wgOut->setSyndicated( true );
147 $s = $sk->beginRecentChangesList();
148 foreach( $rows as $obj ){
149 if( $limit == 0) {
150 break;
151 }
152
153 if ( ! ( $hideminor && $obj->rc_minor ) ) {
154 $rc = RecentChange::newFromRow( $obj );
155 $s .= $sk->recentChangesLine( $rc, !empty( $obj->wl_user ) );
156 --$limit;
157 }
158 }
159 $s .= $sk->endRecentChangesList();
160 $wgOut->addHTML( $s );
161 }
162 wfFreeResult( $res );
163 }
164
165 function rcCountLink( $lim, $d, $page="Recentchanges", $more="" )
166 {
167 global $wgUser, $wgLang;
168 $sk = $wgUser->getSkin();
169 $s = $sk->makeKnownLink( $wgLang->specialPage( $page ),
170 ($lim ? $wgLang->formatNum( "{$lim}" ) : wfMsg( "all" ) ), "{$more}" .
171 ($d ? "days={$d}&" : "") . "limit={$lim}" );
172 return $s;
173 }
174
175 function rcDaysLink( $lim, $d, $page="Recentchanges", $more="" )
176 {
177 global $wgUser, $wgLang;
178 $sk = $wgUser->getSkin();
179 $s = $sk->makeKnownLink( $wgLang->specialPage( $page ),
180 ($d ? $wgLang->formatNum( "{$d}" ) : wfMsg( "all" ) ), "{$more}days={$d}" .
181 ($lim ? "&limit={$lim}" : "") );
182 return $s;
183 }
184
185 function rcDayLimitLinks( $days, $limit, $page="Recentchanges", $more="", $doall = false, $minorLink = "",
186 $botLink = "", $liuLink = "" )
187 {
188 if ($more != "") $more .= "&";
189 $cl = rcCountLink( 50, $days, $page, $more ) . " | " .
190 rcCountLink( 100, $days, $page, $more ) . " | " .
191 rcCountLink( 250, $days, $page, $more ) . " | " .
192 rcCountLink( 500, $days, $page, $more ) .
193 ( $doall ? ( " | " . rcCountLink( 0, $days, $page, $more ) ) : "" );
194 $dl = rcDaysLink( $limit, 1, $page, $more ) . " | " .
195 rcDaysLink( $limit, 3, $page, $more ) . " | " .
196 rcDaysLink( $limit, 7, $page, $more ) . " | " .
197 rcDaysLink( $limit, 14, $page, $more ) . " | " .
198 rcDaysLink( $limit, 30, $page, $more ) .
199 ( $doall ? ( " | " . rcDaysLink( $limit, 0, $page, $more ) ) : "" );
200 $shm = wfMsg( "showhideminor", $minorLink, $botLink, $liuLink );
201 $note = wfMsg( "rclinks", $cl, $dl, $shm );
202 return $note;
203 }
204
205 # Obsolete? Isn't called from anywhere and $mlink isn't defined
206 function rcLimitLinks( $page="Recentchanges", $more="", $doall = false )
207 {
208 if ($more != "") $more .= "&";
209 $cl = rcCountLink( 50, 0, $page, $more ) . " | " .
210 rcCountLink( 100, 0, $page, $more ) . " | " .
211 rcCountLink( 250, 0, $page, $more ) . " | " .
212 rcCountLink( 500, 0, $page, $more ) .
213 ( $doall ? ( " | " . rcCountLink( 0, $days, $page, $more ) ) : "" );
214 $note = wfMsg( "rclinks", $cl, "", $mlink );
215 return $note;
216 }
217
218 ?>