includes/LogPage.php

   1 <?php
   2 #$Id$
   3 #
   4 # Class to simplify the use of log pages
   5
   6 class LogPage {
   7         /* private */ var $mTitle, $mContent, $mContentLoaded, $mId, $mComment;
   8         var $mUpdateRecentChanges ;
   9
  10         function LogPage( $title, $defaulttext = "<ul>\n</ul>"  )
  11         {
  12                 # For now, assume title is correct dbkey
  13                 # and log pages always go in Wikipedia namespace
  14                 $this->mTitle = str_replace( ' ', '_', $title );
  15                 $this->mId = 0;
  16                 $this->mUpdateRecentChanges = true ;
  17                 $this->mContentLoaded = false;
  18                 $this->getContent( $defaulttext );
  19         }
  20
  21         function getContent( $defaulttext = "<ul>\n</ul>" )
  22         {
  23                 $fname = 'LogPage::getContent';
  24
  25                 $dbw =& wfGetDB( DB_MASTER );
  26                 $s = $dbw->getArray( 'cur',
  27                         array( 'cur_id','cur_text','cur_timestamp' ),
  28                         array( 'cur_namespace' => Namespace::getWikipedia(), 'cur_title' => $this->mTitle ),
  29                         $fname, 'FOR UPDATE'
  30                 );
  31
  32                 if( $s !== false ) {
  33                         $this->mId = $s->cur_id;
  34                         $this->mContent = $s->cur_text;
  35                         $this->mTimestamp = wfTimestamp(TS_MW,$s->cur_timestamp);
  36                 } else {
  37                         $this->mId = 0;
  38                         $this->mContent = $defaulttext;
  39                         $this->mTimestamp = wfTimestamp(TS_MW);
  40                 }
  41                 $this->mContentLoaded = true; # Well, sort of
  42
  43                 return $this->mContent;
  44         }
  45
  46         function getTimestamp()
  47         {
  48                 if( !$this->mContentLoaded ) {
  49                         $this->getContent();
  50                 }
  51                 return $this->mTimestamp;
  52         }
  53
  54         function saveContent()
  55         {
  56                 if( wfReadOnly() ) return;
  57
  58                 global $wgUser;
  59                 $fname = 'LogPage::saveContent';
  60
  61                 $dbw =& wfGetDB( DB_MASTER );
  62                 $uid = $wgUser->getID();
  63
  64                 if( !$this->mContentLoaded ) return false;
  65                 $this->mTimestamp = $now = wfTimestampNow();
  66                 $won = wfInvertTimestamp( $now );
  67                 if($this->mId == 0) {
  68                         $seqVal = $dbw->nextSequenceValue( 'cur_cur_id_seq' );
  69
  70                         # Note: this query will deadlock if another thread has called getContent(),
  71                         # at least in MySQL 4.0.17 InnoDB
  72                         $dbw->insertArray( 'cur',
  73                                 array(
  74                                         'cur_id' => $seqVal,
  75                                         'cur_timestamp' => $dbw->timestamp($now),
  76                                         'cur_user' => $uid,
  77                                         'cur_user_text' => $wgUser->getName(),
  78                                         'cur_namespace' => NS_WIKIPEDIA,
  79                                         'cur_title' => $this->mTitle,
  80                                         'cur_text' => $this->mContent,
  81                                         'cur_comment' => $this->mComment,
  82                                         'cur_restrictions' => 'sysop',
  83                                         'inverse_timestamp' => $won,
  84                                         'cur_touched' => $dbw->timestamp($now),
  85                                 ), $fname
  86                         );
  87                         $this->mId = $dbw->insertId();
  88                 } else {
  89                         $dbw->updateArray( 'cur',
  90                                 array( /* SET */
  91                                         'cur_timestamp' => $dbw->timestamp($now),
  92                                         'cur_user' => $uid,
  93                                         'cur_user_text' => $wgUser->getName(),
  94                                         'cur_text' => $this->mContent,
  95                                         'cur_comment' => $this->mComment,
  96                                         'cur_restrictions' => 'sysop',
  97                                         'inverse_timestamp' => $won,
  98                                         'cur_touched' => $dbw->timestamp($now),
  99                                 ), array( /* WHERE */
 100                                         'cur_id' => $this->mId
 101                                 ), $fname
 102                         );
 103                 }
 104
 105                 # And update recentchanges
 106                 if ( $this->mUpdateRecentChanges ) {
 107                         $titleObj = Title::makeTitle( Namespace::getWikipedia(), $this->mTitle );
 108                         RecentChange::notifyLog( $now, $titleObj, $wgUser, $this->mComment );
 109                 }
 110                 return true;
 111         }
 112
 113         function addEntry( $action, $comment, $textaction = '' )
 114         {
 115                 global $wgLang, $wgUser;
 116
 117                 $comment_esc = wfEscapeWikiText( $comment );
 118
 119                 $this->getContent();
 120
 121                 $ut = $wgUser->getName();
 122                 $uid = $wgUser->getID();
 123                 if( $uid ) {
 124                         $ul = '[[' .
 125                           $wgLang->getNsText( Namespace::getUser() ) .
 126                           ":{$ut}|{$ut}]]";
 127                 } else {
 128                         $ul = $ut;
 129                 }
 130
 131                 # Use the wiki-wide default date format instead of the user's setting
 132                 $d = $wgLang->timeanddate( wfTimestampNow(), false, MW_DATE_DEFAULT );
 133
 134                 if( preg_match( "/^(.*?)<ul>(.*)$/sD", $this->mContent, $m ) ) {
 135                         $before = $m[1];
 136                         $after = $m[2];
 137                 } else {
 138                         $before = '';
 139                         $after = '';
 140                 }
 141
 142                 if($textaction)
 143                         $this->mComment = $textaction;
 144                 else
 145                         $this->mComment = $action;
 146
 147                 if ( '' == $comment ) {
 148                         $inline = '';
 149                 } else {
 150                         $inline = " <em>({$comment_esc})</em>";
 151                         # comment gets escaped again, so we use the unescaped version
 152                         $this->mComment .= ': '.$comment;
 153                 }
 154                 $this->mContent = "{$before}<ul><li>{$d} {$ul} {$action}{$inline}</li>\n{$after}";
 155
 156                 # TODO: automatic log rotation...
 157
 158                 return $this->saveContent();
 159         }
 160
 161         function replaceContent( $text, $comment = '' )
 162         {
 163                 $this->mContent = $text;
 164                 $this->mComment = $comment;
 165                 $this->mTimestamp = wfTimestampNow();
 166                 return $this->saveContent();
 167         }
 168
 169         function showAsDisabledPage( $rawhtml = true )
 170         {
 171                 global $wgLang, $wgOut;
 172                 if( $wgOut->checkLastModified( $this->getTimestamp() ) ){
 173                         # Client cache fresh and headers sent, nothing more to do.
 174                         return;
 175                 }
 176                 $func = ( $rawhtml ? 'addHTML' : 'addWikiText' );
 177                 $wgOut->$func(
 178                         "<p>" . wfMsg( 'perfdisabled' ) . "</p>\n\n" .
 179                         "<p>" . wfMsg( 'perfdisabledsub', $wgLang->timeanddate( $this->getTimestamp() ) ) . "</p>\n\n" .
 180                         "<hr />\n\n" .
 181                         $this->getContent()
 182                         );
 183                 return;
 184
 185         }
 186 }
 187
 188 ?>