includes/LogPage.php

   1 <?php
   2 /**
   3  * Contain log classes
   4  *
   5  * Copyright © 2002, 2004 Brion Vibber <brion@pobox.com>
   6  * http://www.mediawiki.org/
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with this program; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  21  * http://www.gnu.org/copyleft/gpl.html
  22  *
  23  * @file
  24  */
  25
  26 /**
  27  * Class to simplify the use of log pages.
  28  * The logs are now kept in a table which is easier to manage and trim
  29  * than ever-growing wiki pages.
  30  *
  31  */
  32 class LogPage {
  33         const DELETED_ACTION = 1;
  34         const DELETED_COMMENT = 2;
  35         const DELETED_USER = 4;
  36         const DELETED_RESTRICTED = 8;
  37         // Convenience fields
  38         const SUPPRESSED_USER = 12;
  39         const SUPPRESSED_ACTION = 9;
  40         /* @access private */
  41         var $type, $action, $comment, $params;
  42
  43         /**
  44          * @var User
  45          */
  46         var $doer;
  47
  48         /**
  49          * @var Title
  50          */
  51         var $target;
  52
  53         /* @acess public */
  54         var $updateRecentChanges, $sendToUDP;
  55
  56         /**
  57          * Constructor
  58          *
  59          * @param $type String: one of '', 'block', 'protect', 'rights', 'delete',
  60          *               'upload', 'move'
  61          * @param $rc Boolean: whether to update recent changes as well as the logging table
  62          * @param $udp String: pass 'UDP' to send to the UDP feed if NOT sent to RC
  63          */
  64         public function __construct( $type, $rc = true, $udp = 'skipUDP' ) {
  65                 $this->type = $type;
  66                 $this->updateRecentChanges = $rc;
  67                 $this->sendToUDP = ( $udp == 'UDP' );
  68         }
  69
  70         /**
  71          * @return bool|int|null
  72          */
  73         protected function saveContent() {
  74                 global $wgLogRestrictions;
  75
  76                 $dbw = wfGetDB( DB_MASTER );
  77                 $log_id = $dbw->nextSequenceValue( 'logging_log_id_seq' );
  78
  79                 $this->timestamp = $now = wfTimestampNow();
  80                 $data = array(
  81                         'log_id' => $log_id,
  82                         'log_type' => $this->type,
  83                         'log_action' => $this->action,
  84                         'log_timestamp' => $dbw->timestamp( $now ),
  85                         'log_user' => $this->doer->getId(),
  86                         'log_user_text' => $this->doer->getName(),
  87                         'log_namespace' => $this->target->getNamespace(),
  88                         'log_title' => $this->target->getDBkey(),
  89                         'log_page' => $this->target->getArticleId(),
  90                         'log_comment' => $this->comment,
  91                         'log_params' => $this->params
  92                 );
  93                 $dbw->insert( 'logging', $data, __METHOD__ );
  94                 $newId = !is_null( $log_id ) ? $log_id : $dbw->insertId();
  95
  96                 # And update recentchanges
  97                 if( $this->updateRecentChanges ) {
  98                         $titleObj = SpecialPage::getTitleFor( 'Log', $this->type );
  99
 100                         RecentChange::notifyLog(
 101                                 $now, $titleObj, $this->doer, $this->getRcComment(), '',
 102                                 $this->type, $this->action, $this->target, $this->comment,
 103                                 $this->params, $newId
 104                         );
 105                 } elseif( $this->sendToUDP ) {
 106                         # Don't send private logs to UDP
 107                         if( isset( $wgLogRestrictions[$this->type] ) && $wgLogRestrictions[$this->type] != '*' ) {
 108                                 return true;
 109                         }
 110
 111                         # Notify external application via UDP.
 112                         # We send this to IRC but do not want to add it the RC table.
 113                         $titleObj = SpecialPage::getTitleFor( 'Log', $this->type );
 114                         $rc = RecentChange::newLogEntry(
 115                                 $now, $titleObj, $this->doer, $this->getRcComment(), '',
 116                                 $this->type, $this->action, $this->target, $this->comment,
 117                                 $this->params, $newId
 118                         );
 119                         $rc->notifyRC2UDP();
 120                 }
 121                 return $newId;
 122         }
 123
 124         /**
 125          * Get the RC comment from the last addEntry() call
 126          *
 127          * @return string
 128          */
 129         public function getRcComment() {
 130                 $rcComment = $this->actionText;
 131
 132                 if( $this->comment != '' ) {
 133                         if ( $rcComment == '' ) {
 134                                 $rcComment = $this->comment;
 135                         } else {
 136                                 $rcComment .= wfMsgForContent( 'colon-separator' ) . $this->comment;
 137                         }
 138                 }
 139
 140                 return $rcComment;
 141         }
 142
 143         /**
 144          * Get the comment from the last addEntry() call
 145          */
 146         public function getComment() {
 147                 return $this->comment;
 148         }
 149
 150         /**
 151          * Get the list of valid log types
 152          *
 153          * @return Array of strings
 154          */
 155         public static function validTypes() {
 156                 global $wgLogTypes;
 157                 return $wgLogTypes;
 158         }
 159
 160         /**
 161          * Is $type a valid log type
 162          *
 163          * @param $type String: log type to check
 164          * @return Boolean
 165          */
 166         public static function isLogType( $type ) {
 167                 return in_array( $type, LogPage::validTypes() );
 168         }
 169
 170         /**
 171          * Get the name for the given log type
 172          *
 173          * @param $type String: logtype
 174          * @return String: log name
 175          * @deprecated in 1.19, warnings in 1.21. Use getName()
 176          */
 177         public static function logName( $type ) {
 178                 global $wgLogNames;
 179
 180                 if( isset( $wgLogNames[$type] ) ) {
 181                         return str_replace( '_', ' ', wfMsg( $wgLogNames[$type] ) );
 182                 } else {
 183                         // Bogus log types? Perhaps an extension was removed.
 184                         return $type;
 185                 }
 186         }
 187
 188         /**
 189          * Get the log header for the given log type
 190          *
 191          * @todo handle missing log types
 192          * @param $type String: logtype
 193          * @return String: headertext of this logtype
 194          * @deprecated in 1.19, warnings in 1.21. Use getDescription()
 195          */
 196         public static function logHeader( $type ) {
 197                 global $wgLogHeaders;
 198                 return wfMsgExt( $wgLogHeaders[$type], array( 'parseinline' ) );
 199         }
 200
 201         /**
 202          * Generate text for a log entry
 203          *
 204          * @param $type String: log type
 205          * @param $action String: log action
 206          * @param $title Mixed: Title object or null
 207          * @param $skin Mixed: Skin object or null. If null, we want to use the wiki
 208          *              content language, since that will go to the IRC feed.
 209          * @param $params Array: parameters
 210          * @param $filterWikilinks Boolean: whether to filter wiki links
 211          * @return HTML string
 212          */
 213         public static function actionText( $type, $action, $title = null, $skin = null,
 214                 $params = array(), $filterWikilinks = false )
 215         {
 216                 global $wgLang, $wgContLang, $wgLogActions;
 217
 218                 if ( is_null( $skin ) ) {
 219                         $langObj = $wgContLang;
 220                         $langObjOrNull = null;
 221                 } else {
 222                         $langObj = $wgLang;
 223                         $langObjOrNull = $wgLang;
 224                 }
 225
 226                 $key = "$type/$action";
 227
 228                 if( isset( $wgLogActions[$key] ) ) {
 229                         if( is_null( $title ) ) {
 230                                 $rv = wfMsgExt( $wgLogActions[$key], array( 'parsemag', 'escape', 'language' => $langObj ) );
 231                         } else {
 232                                 $titleLink = self::getTitleLink( $type, $langObjOrNull, $title, $params );
 233
 234                                 if( preg_match( '/^rights\/(rights|autopromote)/', $key ) ) {
 235                                         $rightsnone = wfMsgExt( 'rightsnone', array( 'parsemag', 'language' => $langObj ) );
 236
 237                                         if( $skin ) {
 238                                                 foreach ( $params as &$param ) {
 239                                                         $groupArray = array_map( 'trim', explode( ',', $param ) );
 240                                                         $groupArray = array_map( array( 'User', 'getGroupMember' ), $groupArray );
 241                                                         $param = $wgLang->listToText( $groupArray );
 242                                                 }
 243                                         }
 244
 245                                         if( !isset( $params[0] ) || trim( $params[0] ) == '' ) {
 246                                                 $params[0] = $rightsnone;
 247                                         }
 248
 249                                         if( !isset( $params[1] ) || trim( $params[1] ) == '' ) {
 250                                                 $params[1] = $rightsnone;
 251                                         }
 252                                 }
 253
 254                                 if( count( $params ) == 0 ) {
 255                                         $rv = wfMsgExt( $wgLogActions[$key], array( 'parsemag', 'escape', 'replaceafter', 'language' => $langObj ), $titleLink );
 256                                 } else {
 257                                         $details = '';
 258                                         array_unshift( $params, $titleLink );
 259
 260                                         // User suppression
 261                                         if ( preg_match( '/^(block|suppress)\/(block|reblock)$/', $key ) ) {
 262                                                 if ( $skin ) {
 263                                                         $params[1] = '<span class="blockExpiry" dir="ltr" title="' . htmlspecialchars( $params[1] ). '">' .
 264                                                                 $wgLang->translateBlockExpiry( $params[1] ) . '</span>';
 265                                                 } else {
 266                                                         $params[1] = $wgContLang->translateBlockExpiry( $params[1] );
 267                                                 }
 268
 269                                                 $params[2] = isset( $params[2] ) ?
 270                                                         self::formatBlockFlags( $params[2], $langObj ) : '';
 271                                         // Page protections
 272                                         } elseif ( $type == 'protect' && count($params) == 3 ) {
 273                                                 // Restrictions and expiries
 274                                                 if( $skin ) {
 275                                                         $details .= $wgLang->getDirMark() . htmlspecialchars( " {$params[1]}" );
 276                                                 } else {
 277                                                         $details .= " {$params[1]}";
 278                                                 }
 279
 280                                                 // Cascading flag...
 281                                                 if( $params[2] ) {
 282                                                         $details .= ' [' . wfMsgExt( 'protect-summary-cascade', array( 'parsemag', 'language' => $langObj ) ) . ']';
 283                                                 }
 284                                         }
 285
 286                                         $rv = wfMsgExt( $wgLogActions[$key], array( 'parsemag', 'escape', 'replaceafter', 'language' => $langObj ), $params ) . $details;
 287                                 }
 288                         }
 289                 } else {
 290                         global $wgLogActionsHandlers;
 291
 292                         if( isset( $wgLogActionsHandlers[$key] ) ) {
 293                                 $args = func_get_args();
 294                                 $rv = call_user_func_array( $wgLogActionsHandlers[$key], $args );
 295                         } else {
 296                                 wfDebug( "LogPage::actionText - unknown action $key\n" );
 297                                 $rv = "$action";
 298                         }
 299                 }
 300
 301                 // For the perplexed, this feature was added in r7855 by Erik.
 302                 // The feature was added because we liked adding [[$1]] in our log entries
 303                 // but the log entries are parsed as Wikitext on RecentChanges but as HTML
 304                 // on Special:Log. The hack is essentially that [[$1]] represented a link
 305                 // to the title in question. The first parameter to the HTML version (Special:Log)
 306                 // is that link in HTML form, and so this just gets rid of the ugly [[]].
 307                 // However, this is a horrible hack and it doesn't work like you expect if, say,
 308                 // you want to link to something OTHER than the title of the log entry.
 309                 // The real problem, which Erik was trying to fix (and it sort-of works now) is
 310                 // that the same messages are being treated as both wikitext *and* HTML.
 311                 if( $filterWikilinks ) {
 312                         $rv = str_replace( '[[', '', $rv );
 313                         $rv = str_replace( ']]', '', $rv );
 314                 }
 315
 316                 return $rv;
 317         }
 318
 319         /**
 320          * TODO document
 321          * @param  $type String
 322          * @param  $lang Language or null
 323          * @param  $title Title
 324          * @param  $params Array
 325          * @return String
 326          */
 327         protected static function getTitleLink( $type, $lang, $title, &$params ) {
 328                 global $wgContLang, $wgUserrightsInterwikiDelimiter;
 329
 330                 if( !$lang ) {
 331                         return $title->getPrefixedText();
 332                 }
 333
 334                 switch( $type ) {
 335                         case 'move':
 336                                 $titleLink = Linker::link(
 337                                         $title,
 338                                         htmlspecialchars( $title->getPrefixedText() ),
 339                                         array(),
 340                                         array( 'redirect' => 'no' )
 341                                 );
 342
 343                                 $targetTitle = Title::newFromText( $params[0] );
 344
 345                                 if ( !$targetTitle ) {
 346                                         # Workaround for broken database
 347                                         $params[0] = htmlspecialchars( $params[0] );
 348                                 } else {
 349                                         $params[0] = Linker::link(
 350                                                 $targetTitle,
 351                                                 htmlspecialchars( $params[0] )
 352                                         );
 353                                 }
 354                                 break;
 355                         case 'block':
 356                                 if( substr( $title->getText(), 0, 1 ) == '#' ) {
 357                                         $titleLink = $title->getText();
 358                                 } else {
 359                                         // @todo Store the user identifier in the parameters
 360                                         // to make this faster for future log entries
 361                                         $id = User::idFromName( $title->getText() );
 362                                         $titleLink = Linker::userLink( $id, $title->getText() )
 363                                                 . Linker::userToolLinks( $id, $title->getText(), false, Linker::TOOL_LINKS_NOBLOCK );
 364                                 }
 365                                 break;
 366                         case 'rights':
 367                                 $text = $wgContLang->ucfirst( $title->getText() );
 368                                 $parts = explode( $wgUserrightsInterwikiDelimiter, $text, 2 );
 369
 370                                 if ( count( $parts ) == 2 ) {
 371                                         $titleLink = WikiMap::foreignUserLink( $parts[1], $parts[0],
 372                                                 htmlspecialchars( $title->getPrefixedText() ) );
 373
 374                                         if ( $titleLink !== false ) {
 375                                                 break;
 376                                         }
 377                                 }
 378                                 $titleLink = Linker::link( Title::makeTitle( NS_USER, $text ) );
 379                                 break;
 380                         case 'merge':
 381                                 $titleLink = Linker::link(
 382                                         $title,
 383                                         $title->getPrefixedText(),
 384                                         array(),
 385                                         array( 'redirect' => 'no' )
 386                                 );
 387                                 $params[0] = Linker::link(
 388                                         Title::newFromText( $params[0] ),
 389                                         htmlspecialchars( $params[0] )
 390                                 );
 391                                 $params[1] = $lang->timeanddate( $params[1] );
 392                                 break;
 393                         default:
 394                                 if( $title->getNamespace() == NS_SPECIAL ) {
 395                                         list( $name, $par ) = SpecialPageFactory::resolveAlias( $title->getDBkey() );
 396
 397                                         # Use the language name for log titles, rather than Log/X
 398                                         if( $name == 'Log' ) {
 399                                                 $titleLink = '(' . Linker::link( $title, LogPage::logName( $par ) ) . ')';
 400                                         } else {
 401                                                 $titleLink = Linker::link( $title );
 402                                         }
 403                                 } else {
 404                                         $titleLink = Linker::link( $title );
 405                                 }
 406                 }
 407
 408                 return $titleLink;
 409         }
 410
 411         /**
 412          * Add a log entry
 413          *
 414          * @param $action String: one of '', 'block', 'protect', 'rights', 'delete', 'upload', 'move', 'move_redir'
 415          * @param $target Title object
 416          * @param $comment String: description associated
 417          * @param $params Array: parameters passed later to wfMsg.* functions
 418          * @param $doer User object: the user doing the action
 419          *
 420          * @return bool|int|null
 421          */
 422         public function addEntry( $action, $target, $comment, $params = array(), $doer = null ) {
 423                 global $wgContLang;
 424
 425                 if ( !is_array( $params ) ) {
 426                         $params = array( $params );
 427                 }
 428
 429                 if ( $comment === null ) {
 430                         $comment = '';
 431                 }
 432
 433                 # Truncate for whole multibyte characters.
 434                 $comment = $wgContLang->truncate( $comment, 255 );
 435
 436                 $this->action = $action;
 437                 $this->target = $target;
 438                 $this->comment = $comment;
 439                 $this->params = LogPage::makeParamBlob( $params );
 440
 441                 if ( $doer === null ) {
 442                         global $wgUser;
 443                         $doer = $wgUser;
 444                 } elseif ( !is_object( $doer ) ) {
 445                         $doer = User::newFromId( $doer );
 446                 }
 447
 448                 $this->doer = $doer;
 449
 450                 $this->actionText = LogPage::actionText( $this->type, $action, $target, null, $params );
 451
 452                 return $this->saveContent();
 453         }
 454
 455         /**
 456          * Add relations to log_search table
 457          *
 458          * @param $field String
 459          * @param $values Array
 460          * @param $logid Integer
 461          * @return Boolean
 462          */
 463         public function addRelations( $field, $values, $logid ) {
 464                 if( !strlen( $field ) || empty( $values ) ) {
 465                         return false; // nothing
 466                 }
 467
 468                 $data = array();
 469
 470                 foreach( $values as $value ) {
 471                         $data[] = array(
 472                                 'ls_field' => $field,
 473                                 'ls_value' => $value,
 474                                 'ls_log_id' => $logid
 475                         );
 476                 }
 477
 478                 $dbw = wfGetDB( DB_MASTER );
 479                 $dbw->insert( 'log_search', $data, __METHOD__, 'IGNORE' );
 480
 481                 return true;
 482         }
 483
 484         /**
 485          * Create a blob from a parameter array
 486          *
 487          * @param $params Array
 488          * @return String
 489          */
 490         public static function makeParamBlob( $params ) {
 491                 return implode( "\n", $params );
 492         }
 493
 494         /**
 495          * Extract a parameter array from a blob
 496          *
 497          * @param $blob String
 498          * @return Array
 499          */
 500         public static function extractParams( $blob ) {
 501                 if ( $blob === '' ) {
 502                         return array();
 503                 } else {
 504                         return explode( "\n", $blob );
 505                 }
 506         }
 507
 508         /**
 509          * Convert a comma-delimited list of block log flags
 510          * into a more readable (and translated) form
 511          *
 512          * @param $flags Flags to format
 513          * @param $lang Language object to use
 514          * @return String
 515          */
 516         public static function formatBlockFlags( $flags, $lang ) {
 517                 $flags = explode( ',', trim( $flags ) );
 518
 519                 if( count( $flags ) > 0 ) {
 520                         for( $i = 0; $i < count( $flags ); $i++ ) {
 521                                 $flags[$i] = self::formatBlockFlag( $flags[$i], $lang );
 522                         }
 523                         return '(' . $lang->commaList( $flags ) . ')';
 524                 } else {
 525                         return '';
 526                 }
 527         }
 528
 529         /**
 530          * Translate a block log flag if possible
 531          *
 532          * @param $flag int Flag to translate
 533          * @param $lang Language object to use
 534          * @return String
 535          */
 536         public static function formatBlockFlag( $flag, $lang ) {
 537                 static $messages = array();
 538
 539                 if( !isset( $messages[$flag] ) ) {
 540                         $messages[$flag] = htmlspecialchars( $flag ); // Fallback
 541
 542                         // For grepping. The following core messages can be used here:
 543                         // * block-log-flags-angry-autoblock
 544                         // * block-log-flags-anononly
 545                         // * block-log-flags-hiddenname
 546                         // * block-log-flags-noautoblock
 547                         // * block-log-flags-nocreate
 548                         // * block-log-flags-noemail
 549                         // * block-log-flags-nousertalk
 550                         $msg = wfMessage( 'block-log-flags-' . $flag )->inLanguage( $lang );
 551
 552                         if ( $msg->exists() ) {
 553                                 $messages[$flag] = $msg->escaped();
 554                         }
 555                 }
 556
 557                 return $messages[$flag];
 558         }
 559
 560
 561         /**
 562          * Name of the log.
 563          * @return Message
 564          * @since 1.19
 565          */
 566         public function getName() {
 567                 global $wgLogNames;
 568
 569                 // BC
 570                 if ( isset( $wgLogNames[$this->type] ) ) {
 571                         $key = $wgLogNames[$this->type];
 572                 } else {
 573                         $key = 'log-name-' . $this->type;
 574                 }
 575
 576                 return wfMessage( $key );
 577         }
 578
 579         /**
 580          * Description of this log type.
 581          * @return Message
 582          * @since 1.19
 583          */
 584         public function getDescription() {
 585                 global $wgLogHeaders;
 586                 // BC
 587                 if ( isset( $wgLogHeaders[$this->type] ) ) {
 588                         $key = $wgLogHeaders[$this->type];
 589                 } else {
 590                         $key = 'log-description-' . $this->type;
 591                 }
 592                 return wfMessage( $key );
 593         }
 594
 595         /**
 596          * Returns the right needed to read this log type.
 597          * @return string
 598          * @since 1.19
 599          */
 600         public function getRestriction() {
 601                 global $wgLogRestrictions;
 602                 if ( isset( $wgLogRestrictions[$this->type] ) ) {
 603                         $restriction = $wgLogRestrictions[$this->type];
 604                 } else {
 605                         // '' always returns true with $user->isAllowed()
 606                         $restriction = '';
 607                 }
 608                 return $restriction;
 609         }
 610
 611         /**
 612          * Tells if this log is not viewable by all.
 613          * @return bool
 614          * @since 1.19
 615          */
 616         public function isRestricted() {
 617                 $restriction = $this->getRestriction();
 618                 return $restriction !== '' && $restriction !== '*';
 619         }
 620
 621 }