includes/logging/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
  38         // Convenience fields
  39         const SUPPRESSED_USER = 12;
  40         const SUPPRESSED_ACTION = 9;
  41
  42         /** @var bool */
  43         var $updateRecentChanges;
  44
  45         /** @var bool */
  46         var $sendToUDP;
  47
  48         /** @var string One of '', 'block', 'protect', 'rights', 'delete',
  49          *    'upload', 'move'
  50          */
  51         var $type;
  52
  53         /** @var string One of '', 'block', 'protect', 'rights', 'delete',
  54          *   'upload', 'move', 'move_redir' */
  55         var $action;
  56
  57         /** @var string Comment associated with action */
  58         var $comment;
  59
  60         /** @var string Blob made of a parameters array */
  61         var $params;
  62
  63         /** @var User The user doing the action */
  64         var $doer;
  65
  66         /** @var Title */
  67         var $target;
  68
  69         /**
  70          * Constructor
  71          *
  72          * @param string $type One of '', 'block', 'protect', 'rights', 'delete',
  73          *   'upload', 'move'
  74          * @param bool $rc Whether to update recent changes as well as the logging table
  75          * @param string $udp Pass 'UDP' to send to the UDP feed if NOT sent to RC
  76          */
  77         public function __construct( $type, $rc = true, $udp = 'skipUDP' ) {
  78                 $this->type = $type;
  79                 $this->updateRecentChanges = $rc;
  80                 $this->sendToUDP = ( $udp == 'UDP' );
  81         }
  82
  83         /**
  84          * @return int log_id of the inserted log entry
  85          */
  86         protected function saveContent() {
  87                 global $wgLogRestrictions;
  88
  89                 $dbw = wfGetDB( DB_MASTER );
  90                 $log_id = $dbw->nextSequenceValue( 'logging_log_id_seq' );
  91
  92                 $this->timestamp = $now = wfTimestampNow();
  93                 $data = array(
  94                         'log_id' => $log_id,
  95                         'log_type' => $this->type,
  96                         'log_action' => $this->action,
  97                         'log_timestamp' => $dbw->timestamp( $now ),
  98                         'log_user' => $this->doer->getId(),
  99                         'log_user_text' => $this->doer->getName(),
 100                         'log_namespace' => $this->target->getNamespace(),
 101                         'log_title' => $this->target->getDBkey(),
 102                         'log_page' => $this->target->getArticleID(),
 103                         'log_comment' => $this->comment,
 104                         'log_params' => $this->params
 105                 );
 106                 $dbw->insert( 'logging', $data, __METHOD__ );
 107                 $newId = !is_null( $log_id ) ? $log_id : $dbw->insertId();
 108
 109                 # And update recentchanges
 110                 if ( $this->updateRecentChanges ) {
 111                         $titleObj = SpecialPage::getTitleFor( 'Log', $this->type );
 112
 113                         RecentChange::notifyLog(
 114                                 $now, $titleObj, $this->doer, $this->getRcComment(), '',
 115                                 $this->type, $this->action, $this->target, $this->comment,
 116                                 $this->params, $newId, $this->getRcCommentIRC()
 117                         );
 118                 } elseif ( $this->sendToUDP ) {
 119                         # Don't send private logs to UDP
 120                         if ( isset( $wgLogRestrictions[$this->type] ) && $wgLogRestrictions[$this->type] != '*' ) {
 121                                 return $newId;
 122                         }
 123
 124                         # Notify external application via UDP.
 125                         # We send this to IRC but do not want to add it the RC table.
 126                         $titleObj = SpecialPage::getTitleFor( 'Log', $this->type );
 127                         $rc = RecentChange::newLogEntry(
 128                                 $now, $titleObj, $this->doer, $this->getRcComment(), '',
 129                                 $this->type, $this->action, $this->target, $this->comment,
 130                                 $this->params, $newId, $this->getRcCommentIRC()
 131                         );
 132                         $rc->notifyRCFeeds();
 133                 }
 134
 135                 return $newId;
 136         }
 137
 138         /**
 139          * Get the RC comment from the last addEntry() call
 140          *
 141          * @return string
 142          */
 143         public function getRcComment() {
 144                 $rcComment = $this->actionText;
 145
 146                 if ( $this->comment != '' ) {
 147                         if ( $rcComment == '' ) {
 148                                 $rcComment = $this->comment;
 149                         } else {
 150                                 $rcComment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() .
 151                                         $this->comment;
 152                         }
 153                 }
 154
 155                 return $rcComment;
 156         }
 157
 158         /**
 159          * Get the RC comment from the last addEntry() call for IRC
 160          *
 161          * @return string
 162          */
 163         public function getRcCommentIRC() {
 164                 $rcComment = $this->ircActionText;
 165
 166                 if ( $this->comment != '' ) {
 167                         if ( $rcComment == '' ) {
 168                                 $rcComment = $this->comment;
 169                         } else {
 170                                 $rcComment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() .
 171                                         $this->comment;
 172                         }
 173                 }
 174
 175                 return $rcComment;
 176         }
 177
 178         /**
 179          * Get the comment from the last addEntry() call
 180          */
 181         public function getComment() {
 182                 return $this->comment;
 183         }
 184
 185         /**
 186          * Get the list of valid log types
 187          *
 188          * @return array of strings
 189          */
 190         public static function validTypes() {
 191                 global $wgLogTypes;
 192
 193                 return $wgLogTypes;
 194         }
 195
 196         /**
 197          * Is $type a valid log type
 198          *
 199          * @param string $type Log type to check
 200          * @return bool
 201          */
 202         public static function isLogType( $type ) {
 203                 return in_array( $type, LogPage::validTypes() );
 204         }
 205
 206         /**
 207          * Get the name for the given log type
 208          *
 209          * @param string $type Log type
 210          * @return string Log name
 211          * @deprecated in 1.19, warnings in 1.21. Use getName()
 212          */
 213         public static function logName( $type ) {
 214                 global $wgLogNames;
 215
 216                 wfDeprecated( __METHOD__, '1.21' );
 217
 218                 if ( isset( $wgLogNames[$type] ) ) {
 219                         return str_replace( '_', ' ', wfMessage( $wgLogNames[$type] )->text() );
 220                 } else {
 221                         // Bogus log types? Perhaps an extension was removed.
 222                         return $type;
 223                 }
 224         }
 225
 226         /**
 227          * Get the log header for the given log type
 228          *
 229          * @todo handle missing log types
 230          * @param string $type logtype
 231          * @return string Header text of this logtype
 232          * @deprecated in 1.19, warnings in 1.21. Use getDescription()
 233          */
 234         public static function logHeader( $type ) {
 235                 global $wgLogHeaders;
 236
 237                 wfDeprecated( __METHOD__, '1.21' );
 238
 239                 return wfMessage( $wgLogHeaders[$type] )->parse();
 240         }
 241
 242         /**
 243          * Generate text for a log entry.
 244          * Only LogFormatter should call this function.
 245          *
 246          * @param string $type log type
 247          * @param string $action log action
 248          * @param Title|null $title Title object or null
 249          * @param Skin|null $skin Skin object or null. If null, we want to use the wiki
 250          *   content language, since that will go to the IRC feed.
 251          * @param array $params parameters
 252          * @param bool $filterWikilinks Whether to filter wiki links
 253          * @return string HTML
 254          */
 255         public static function actionText( $type, $action, $title = null, $skin = null,
 256                 $params = array(), $filterWikilinks = false
 257         ) {
 258                 global $wgLang, $wgContLang, $wgLogActions;
 259
 260                 if ( is_null( $skin ) ) {
 261                         $langObj = $wgContLang;
 262                         $langObjOrNull = null;
 263                 } else {
 264                         $langObj = $wgLang;
 265                         $langObjOrNull = $wgLang;
 266                 }
 267
 268                 $key = "$type/$action";
 269
 270                 if ( isset( $wgLogActions[$key] ) ) {
 271                         if ( is_null( $title ) ) {
 272                                 $rv = wfMessage( $wgLogActions[$key] )->inLanguage( $langObj )->escaped();
 273                         } else {
 274                                 $titleLink = self::getTitleLink( $type, $langObjOrNull, $title, $params );
 275
 276                                 if ( count( $params ) == 0 ) {
 277                                         $rv = wfMessage( $wgLogActions[$key] )->rawParams( $titleLink )
 278                                                 ->inLanguage( $langObj )->escaped();
 279                                 } else {
 280                                         $details = '';
 281                                         array_unshift( $params, $titleLink );
 282
 283                                         // User suppression
 284                                         if ( preg_match( '/^(block|suppress)\/(block|reblock)$/', $key ) ) {
 285                                                 if ( $skin ) {
 286                                                         // Localize the duration, and add a tooltip
 287                                                         // in English to help visitors from other wikis.
 288                                                         // The lrm is needed to make sure that the number
 289                                                         // is shown on the correct side of the tooltip text.
 290                                                         $durationTooltip = '&lrm;' . htmlspecialchars( $params[1] );
 291                                                         $params[1] = "<span class='blockExpiry' title='$durationTooltip'>" .
 292                                                                 $wgLang->translateBlockExpiry( $params[1] ) . '</span>';
 293                                                 } else {
 294                                                         $params[1] = $wgContLang->translateBlockExpiry( $params[1] );
 295                                                 }
 296
 297                                                 $params[2] = isset( $params[2] ) ?
 298                                                         self::formatBlockFlags( $params[2], $langObj ) : '';
 299                                         // Page protections
 300                                         } elseif ( $type == 'protect' && count( $params ) == 3 ) {
 301                                                 // Restrictions and expiries
 302                                                 if ( $skin ) {
 303                                                         $details .= $wgLang->getDirMark() . htmlspecialchars( " {$params[1]}" );
 304                                                 } else {
 305                                                         $details .= " {$params[1]}";
 306                                                 }
 307
 308                                                 // Cascading flag...
 309                                                 if ( $params[2] ) {
 310                                                         $text = wfMessage( 'protect-summary-cascade' )
 311                                                                 ->inLanguage( $langObj )->text();
 312                                                         $details .= ' ';
 313                                                         $details .= wfMessage( 'brackets', $text )->inLanguage( $langObj )->text();
 314
 315                                                 }
 316                                         }
 317
 318                                         $rv = wfMessage( $wgLogActions[$key] )->rawParams( $params )
 319                                                         ->inLanguage( $langObj )->escaped() . $details;
 320                                 }
 321                         }
 322                 } else {
 323                         global $wgLogActionsHandlers;
 324
 325                         if ( isset( $wgLogActionsHandlers[$key] ) ) {
 326                                 $args = func_get_args();
 327                                 $rv = call_user_func_array( $wgLogActionsHandlers[$key], $args );
 328                         } else {
 329                                 wfDebug( "LogPage::actionText - unknown action $key\n" );
 330                                 $rv = "$action";
 331                         }
 332                 }
 333
 334                 // For the perplexed, this feature was added in r7855 by Erik.
 335                 // The feature was added because we liked adding [[$1]] in our log entries
 336                 // but the log entries are parsed as Wikitext on RecentChanges but as HTML
 337                 // on Special:Log. The hack is essentially that [[$1]] represented a link
 338                 // to the title in question. The first parameter to the HTML version (Special:Log)
 339                 // is that link in HTML form, and so this just gets rid of the ugly [[]].
 340                 // However, this is a horrible hack and it doesn't work like you expect if, say,
 341                 // you want to link to something OTHER than the title of the log entry.
 342                 // The real problem, which Erik was trying to fix (and it sort-of works now) is
 343                 // that the same messages are being treated as both wikitext *and* HTML.
 344                 if ( $filterWikilinks ) {
 345                         $rv = str_replace( '[[', '', $rv );
 346                         $rv = str_replace( ']]', '', $rv );
 347                 }
 348
 349                 return $rv;
 350         }
 351
 352         /**
 353          * @todo Document
 354          * @param  string $type
 355          * @param  Language|null $lang
 356          * @param  Title $title
 357          * @param  array $params
 358          * @return string
 359          */
 360         protected static function getTitleLink( $type, $lang, $title, &$params ) {
 361                 if ( !$lang ) {
 362                         return $title->getPrefixedText();
 363                 }
 364
 365                 switch ( $type ) {
 366                         case 'move':
 367                                 $titleLink = Linker::link(
 368                                         $title,
 369                                         htmlspecialchars( $title->getPrefixedText() ),
 370                                         array(),
 371                                         array( 'redirect' => 'no' )
 372                                 );
 373
 374                                 $targetTitle = Title::newFromText( $params[0] );
 375
 376                                 if ( !$targetTitle ) {
 377                                         # Workaround for broken database
 378                                         $params[0] = htmlspecialchars( $params[0] );
 379                                 } else {
 380                                         $params[0] = Linker::link(
 381                                                 $targetTitle,
 382                                                 htmlspecialchars( $params[0] )
 383                                         );
 384                                 }
 385                                 break;
 386                         case 'block':
 387                                 if ( substr( $title->getText(), 0, 1 ) == '#' ) {
 388                                         $titleLink = $title->getText();
 389                                 } else {
 390                                         // @todo Store the user identifier in the parameters
 391                                         // to make this faster for future log entries
 392                                         $id = User::idFromName( $title->getText() );
 393                                         $titleLink = Linker::userLink( $id, $title->getText() )
 394                                                 . Linker::userToolLinks( $id, $title->getText(), false, Linker::TOOL_LINKS_NOBLOCK );
 395                                 }
 396                                 break;
 397                         case 'merge':
 398                                 $titleLink = Linker::link(
 399                                         $title,
 400                                         $title->getPrefixedText(),
 401                                         array(),
 402                                         array( 'redirect' => 'no' )
 403                                 );
 404                                 $params[0] = Linker::link(
 405                                         Title::newFromText( $params[0] ),
 406                                         htmlspecialchars( $params[0] )
 407                                 );
 408                                 $params[1] = $lang->timeanddate( $params[1] );
 409                                 break;
 410                         default:
 411                                 if ( $title->isSpecialPage() ) {
 412                                         list( $name, $par ) = SpecialPageFactory::resolveAlias( $title->getDBkey() );
 413
 414                                         # Use the language name for log titles, rather than Log/X
 415                                         if ( $name == 'Log' ) {
 416                                                 $logPage = new LogPage( $par );
 417                                                 $titleLink = Linker::link( $title, $logPage->getName()->escaped() );
 418                                                 $titleLink = wfMessage( 'parentheses' )
 419                                                         ->inLanguage( $lang )
 420                                                         ->rawParams( $titleLink )
 421                                                         ->escaped();
 422                                         } else {
 423                                                 $titleLink = Linker::link( $title );
 424                                         }
 425                                 } else {
 426                                         $titleLink = Linker::link( $title );
 427                                 }
 428                 }
 429
 430                 return $titleLink;
 431         }
 432
 433         /**
 434          * Add a log entry
 435          *
 436          * @param string $action one of '', 'block', 'protect', 'rights', 'delete',
 437          *   'upload', 'move', 'move_redir'
 438          * @param Title $target Title object
 439          * @param string $comment description associated
 440          * @param array $params parameters passed later to wfMessage function
 441          * @param null|int|User $doer The user doing the action. null for $wgUser
 442          *
 443          * @return int log_id of the inserted log entry
 444          */
 445         public function addEntry( $action, $target, $comment, $params = array(), $doer = null ) {
 446                 global $wgContLang;
 447
 448                 if ( !is_array( $params ) ) {
 449                         $params = array( $params );
 450                 }
 451
 452                 if ( $comment === null ) {
 453                         $comment = '';
 454                 }
 455
 456                 # Trim spaces on user supplied text
 457                 $comment = trim( $comment );
 458
 459                 # Truncate for whole multibyte characters.
 460                 $comment = $wgContLang->truncate( $comment, 255 );
 461
 462                 $this->action = $action;
 463                 $this->target = $target;
 464                 $this->comment = $comment;
 465                 $this->params = LogPage::makeParamBlob( $params );
 466
 467                 if ( $doer === null ) {
 468                         global $wgUser;
 469                         $doer = $wgUser;
 470                 } elseif ( !is_object( $doer ) ) {
 471                         $doer = User::newFromId( $doer );
 472                 }
 473
 474                 $this->doer = $doer;
 475
 476                 $logEntry = new ManualLogEntry( $this->type, $action );
 477                 $logEntry->setTarget( $target );
 478                 $logEntry->setPerformer( $doer );
 479                 $logEntry->setParameters( $params );
 480
 481                 $formatter = LogFormatter::newFromEntry( $logEntry );
 482                 $context = RequestContext::newExtraneousContext( $target );
 483                 $formatter->setContext( $context );
 484
 485                 $this->actionText = $formatter->getPlainActionText();
 486                 $this->ircActionText = $formatter->getIRCActionText();
 487
 488                 return $this->saveContent();
 489         }
 490
 491         /**
 492          * Add relations to log_search table
 493          *
 494          * @param string $field
 495          * @param array $values
 496          * @param int $logid
 497          * @return bool
 498          */
 499         public function addRelations( $field, $values, $logid ) {
 500                 if ( !strlen( $field ) || empty( $values ) ) {
 501                         return false; // nothing
 502                 }
 503
 504                 $data = array();
 505
 506                 foreach ( $values as $value ) {
 507                         $data[] = array(
 508                                 'ls_field' => $field,
 509                                 'ls_value' => $value,
 510                                 'ls_log_id' => $logid
 511                         );
 512                 }
 513
 514                 $dbw = wfGetDB( DB_MASTER );
 515                 $dbw->insert( 'log_search', $data, __METHOD__, 'IGNORE' );
 516
 517                 return true;
 518         }
 519
 520         /**
 521          * Create a blob from a parameter array
 522          *
 523          * @param array $params
 524          * @return string
 525          */
 526         public static function makeParamBlob( $params ) {
 527                 return implode( "\n", $params );
 528         }
 529
 530         /**
 531          * Extract a parameter array from a blob
 532          *
 533          * @param string $blob
 534          * @return array
 535          */
 536         public static function extractParams( $blob ) {
 537                 if ( $blob === '' ) {
 538                         return array();
 539                 } else {
 540                         return explode( "\n", $blob );
 541                 }
 542         }
 543
 544         /**
 545          * Convert a comma-delimited list of block log flags
 546          * into a more readable (and translated) form
 547          *
 548          * @param string $flags Flags to format
 549          * @param Language $lang
 550          * @return string
 551          */
 552         public static function formatBlockFlags( $flags, $lang ) {
 553                 $flags = trim( $flags );
 554                 if ( $flags === '' ) {
 555                         return ''; //nothing to do
 556                 }
 557                 $flags = explode( ',', $flags );
 558                 $flagsCount = count( $flags );
 559
 560                 for ( $i = 0; $i < $flagsCount; $i++ ) {
 561                         $flags[$i] = self::formatBlockFlag( $flags[$i], $lang );
 562                 }
 563
 564                 return wfMessage( 'parentheses' )->inLanguage( $lang )
 565                         ->rawParams( $lang->commaList( $flags ) )->escaped();
 566         }
 567
 568         /**
 569          * Translate a block log flag if possible
 570          *
 571          * @param int $flag Flag to translate
 572          * @param Language $lang Language object to use
 573          * @return string
 574          */
 575         public static function formatBlockFlag( $flag, $lang ) {
 576                 static $messages = array();
 577
 578                 if ( !isset( $messages[$flag] ) ) {
 579                         $messages[$flag] = htmlspecialchars( $flag ); // Fallback
 580
 581                         // For grepping. The following core messages can be used here:
 582                         // * block-log-flags-angry-autoblock
 583                         // * block-log-flags-anononly
 584                         // * block-log-flags-hiddenname
 585                         // * block-log-flags-noautoblock
 586                         // * block-log-flags-nocreate
 587                         // * block-log-flags-noemail
 588                         // * block-log-flags-nousertalk
 589                         $msg = wfMessage( 'block-log-flags-' . $flag )->inLanguage( $lang );
 590
 591                         if ( $msg->exists() ) {
 592                                 $messages[$flag] = $msg->escaped();
 593                         }
 594                 }
 595
 596                 return $messages[$flag];
 597         }
 598
 599         /**
 600          * Name of the log.
 601          * @return Message
 602          * @since 1.19
 603          */
 604         public function getName() {
 605                 global $wgLogNames;
 606
 607                 // BC
 608                 if ( isset( $wgLogNames[$this->type] ) ) {
 609                         $key = $wgLogNames[$this->type];
 610                 } else {
 611                         $key = 'log-name-' . $this->type;
 612                 }
 613
 614                 return wfMessage( $key );
 615         }
 616
 617         /**
 618          * Description of this log type.
 619          * @return Message
 620          * @since 1.19
 621          */
 622         public function getDescription() {
 623                 global $wgLogHeaders;
 624                 // BC
 625                 if ( isset( $wgLogHeaders[$this->type] ) ) {
 626                         $key = $wgLogHeaders[$this->type];
 627                 } else {
 628                         $key = 'log-description-' . $this->type;
 629                 }
 630
 631                 return wfMessage( $key );
 632         }
 633
 634         /**
 635          * Returns the right needed to read this log type.
 636          * @return string
 637          * @since 1.19
 638          */
 639         public function getRestriction() {
 640                 global $wgLogRestrictions;
 641                 if ( isset( $wgLogRestrictions[$this->type] ) ) {
 642                         $restriction = $wgLogRestrictions[$this->type];
 643                 } else {
 644                         // '' always returns true with $user->isAllowed()
 645                         $restriction = '';
 646                 }
 647
 648                 return $restriction;
 649         }
 650
 651         /**
 652          * Tells if this log is not viewable by all.
 653          * @return bool
 654          * @since 1.19
 655          */
 656         public function isRestricted() {
 657                 $restriction = $this->getRestriction();
 658
 659                 return $restriction !== '' && $restriction !== '*';
 660         }
 661 }