includes/logging/LogEventsList.php

   1 <?php
   2 /**
   3  * Contain classes to list log entries
   4  *
   5  * Copyright © 2004 Brion Vibber <brion@pobox.com>
   6  * https://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 use MediaWiki\Linker\LinkRenderer;
  27 use MediaWiki\MediaWikiServices;
  28 use Wikimedia\Rdbms\IDatabase;
  29
  30 class LogEventsList extends ContextSource {
  31         const NO_ACTION_LINK = 1;
  32         const NO_EXTRA_USER_LINKS = 2;
  33         const USE_CHECKBOXES = 4;
  34
  35         public $flags;
  36
  37         /**
  38          * @var array
  39          */
  40         protected $mDefaultQuery;
  41
  42         /**
  43          * @var bool
  44          */
  45         protected $showTagEditUI;
  46
  47         /**
  48          * @var array
  49          */
  50         protected $allowedActions = null;
  51
  52         /**
  53          * @var LinkRenderer|null
  54          */
  55         private $linkRenderer;
  56
  57         /**
  58          * The first two parameters used to be $skin and $out, but now only a context
  59          * is needed, that's why there's a second unused parameter.
  60          *
  61          * @param IContextSource|Skin $context Context to use; formerly it was
  62          *   a Skin object. Use of Skin is deprecated.
  63          * @param LinkRenderer|null $linkRenderer previously unused
  64          * @param int $flags Can be a combination of self::NO_ACTION_LINK,
  65          *   self::NO_EXTRA_USER_LINKS or self::USE_CHECKBOXES.
  66          */
  67         public function __construct( $context, $linkRenderer = null, $flags = 0 ) {
  68                 if ( $context instanceof IContextSource ) {
  69                         $this->setContext( $context );
  70                 } else {
  71                         // Old parameters, $context should be a Skin object
  72                         $this->setContext( $context->getContext() );
  73                 }
  74
  75                 $this->flags = $flags;
  76                 $this->showTagEditUI = ChangeTags::showTagEditingUI( $this->getUser() );
  77                 if ( $linkRenderer instanceof LinkRenderer ) {
  78                         $this->linkRenderer = $linkRenderer;
  79                 }
  80         }
  81
  82         /**
  83          * @since 1.30
  84          * @return LinkRenderer
  85          */
  86         protected function getLinkRenderer() {
  87                 if ( $this->linkRenderer !== null ) {
  88                         return $this->linkRenderer;
  89                 } else {
  90                         return MediaWikiServices::getInstance()->getLinkRenderer();
  91                 }
  92         }
  93
  94         /**
  95          * Show options for the log list
  96          *
  97          * @param array|string $types
  98          * @param string $user
  99          * @param string $page
 100          * @param bool $pattern
 101          * @param int|string $year Use 0 to start with no year preselected.
 102          * @param int|string $month A month in the 1..12 range. Use 0 to start with no month
 103          *  preselected.
 104          * @param int|string $day A day in the 1..31 range. Use 0 to start with no month
 105          *  preselected.
 106          * @param array|null $filter
 107          * @param string $tagFilter Tag to select by default
 108          * @param string|null $action
 109          */
 110         public function showOptions( $types = [], $user = '', $page = '', $pattern = false, $year = 0,
 111                 $month = 0, $day = 0, $filter = null, $tagFilter = '', $action = null
 112         ) {
 113                 $title = SpecialPage::getTitleFor( 'Log' );
 114
 115                 // For B/C, we take strings, but make sure they are converted...
 116                 $types = ( $types === '' ) ? [] : (array)$types;
 117
 118                 $formDescriptor = [];
 119
 120                 // Basic selectors
 121                 $formDescriptor['type'] = $this->getTypeMenuDesc( $types );
 122                 $formDescriptor['user'] = $this->getUserInputDesc( $user );
 123                 $formDescriptor['page'] = $this->getTitleInputDesc( $title );
 124
 125                 // Add extra inputs if any
 126                 // This could either be a form descriptor array or a string with raw HTML.
 127                 // We need it to work in both cases and show a deprecation warning if it
 128                 // is a string. See T199495.
 129                 $extraInputsDescriptor = $this->getExtraInputsDesc( $types );
 130                 if (
 131                         is_array( $extraInputsDescriptor ) &&
 132                         !empty( $extraInputsDescriptor )
 133                 ) {
 134                         $formDescriptor[ 'extra' ] = $extraInputsDescriptor;
 135                 } elseif ( is_string( $extraInputsDescriptor ) ) {
 136                         // We'll add this to the footer of the form later
 137                         $extraInputsString = $extraInputsDescriptor;
 138                         wfDeprecated( 'Using $input in LogEventsListGetExtraInputs hook', '1.32' );
 139                 }
 140
 141                 // Title pattern, if allowed
 142                 if ( !$this->getConfig()->get( 'MiserMode' ) ) {
 143                         $formDescriptor['pattern'] = $this->getTitlePatternDesc( $pattern );
 144                 }
 145
 146                 // Date menu
 147                 $formDescriptor['date'] = [
 148                         'type' => 'date',
 149                         'label-message' => 'date'
 150                 ];
 151
 152                 // Tag filter
 153                 $formDescriptor['tagfilter'] = [
 154                         'type' => 'tagfilter',
 155                         'name' => 'tagfilter',
 156                         'label-raw' => $this->msg( 'tag-filter' )->parse(),
 157                 ];
 158
 159                 // Filter links
 160                 if ( $filter ) {
 161                         $formDescriptor['filters'] = $this->getFiltersDesc( $filter );
 162                 }
 163
 164                 // Action filter
 165                 if (
 166                         $action !== null &&
 167                         $this->allowedActions !== null &&
 168                         count( $this->allowedActions ) > 0
 169                 ) {
 170                         $formDescriptor['subtype'] = $this->getActionSelectorDesc( $types, $action );
 171                 }
 172
 173                 $htmlForm = new HTMLForm( $formDescriptor, $this->getContext() );
 174                 $htmlForm
 175                         ->setSubmitText( $this->msg( 'logeventslist-submit' )->text() )
 176                         ->setMethod( 'get' )
 177                         ->setWrapperLegendMsg( 'log' );
 178
 179                 // TODO This will should be removed at some point. See T199495.
 180                 if ( isset( $extraInputsString ) ) {
 181                         $htmlForm->addFooterText( Html::rawElement(
 182                                 'div',
 183                                 null,
 184                                 $extraInputsString
 185                         ) );
 186                 }
 187
 188                 $htmlForm->prepareForm()->displayForm( false );
 189         }
 190
 191         /**
 192          * @param array $filter
 193          * @return array Form descriptor
 194          */
 195         private function getFiltersDesc( $filter ) {
 196                 $options = [];
 197                 $default = [];
 198                 foreach ( $filter as $type => $val ) {
 199                         $message = $this->msg( "logeventslist-{$type}-log" );
 200                         // FIXME: Remove this check once T199657 is fully resolved.
 201                         if ( !$message->exists() ) {
 202                                 $message = $this->msg( "log-show-hide-{$type}" )->params( $this->msg( 'show' )->text() );
 203                         }
 204                         $options[ $message->text() ] = $type;
 205
 206                         if ( $val === 0 ) {
 207                                 $default[] = $type;
 208                         }
 209                 }
 210                 return [
 211                         'class' => 'HTMLMultiSelectField',
 212                         'label-message' => 'logeventslist-more-filters',
 213                         'flatlist' => true,
 214                         'options' => $options,
 215                         'default' => $default,
 216                 ];
 217         }
 218
 219         private function getDefaultQuery() {
 220                 if ( !isset( $this->mDefaultQuery ) ) {
 221                         $this->mDefaultQuery = $this->getRequest()->getQueryValues();
 222                         unset( $this->mDefaultQuery['title'] );
 223                         unset( $this->mDefaultQuery['dir'] );
 224                         unset( $this->mDefaultQuery['offset'] );
 225                         unset( $this->mDefaultQuery['limit'] );
 226                         unset( $this->mDefaultQuery['order'] );
 227                         unset( $this->mDefaultQuery['month'] );
 228                         unset( $this->mDefaultQuery['year'] );
 229                 }
 230
 231                 return $this->mDefaultQuery;
 232         }
 233
 234         /**
 235          * @param array $queryTypes
 236          * @return array Form descriptor
 237          */
 238         private function getTypeMenuDesc( $queryTypes ) {
 239                 $queryType = count( $queryTypes ) == 1 ? $queryTypes[0] : '';
 240
 241                 $typesByName = []; // Temporary array
 242                 // First pass to load the log names
 243                 foreach ( LogPage::validTypes() as $type ) {
 244                         $page = new LogPage( $type );
 245                         $restriction = $page->getRestriction();
 246                         if ( $this->getUser()->isAllowed( $restriction ) ) {
 247                                 $typesByName[$type] = $page->getName()->text();
 248                         }
 249                 }
 250
 251                 // Second pass to sort by name
 252                 asort( $typesByName );
 253
 254                 // Always put "All public logs" on top
 255                 $public = $typesByName[''];
 256                 unset( $typesByName[''] );
 257                 $typesByName = [ '' => $public ] + $typesByName;
 258
 259                 return [
 260                         'class' => 'HTMLSelectField',
 261                         'name' => 'type',
 262                         'options' => array_flip( $typesByName ),
 263                         'default' => $queryType,
 264                 ];
 265         }
 266
 267         /**
 268          * @param string $user
 269          * @return array Form descriptor
 270          */
 271         private function getUserInputDesc( $user ) {
 272                 return [
 273                         'class' => 'HTMLUserTextField',
 274                         'label-message' => 'specialloguserlabel',
 275                         'name' => 'user',
 276                 ];
 277         }
 278
 279         /**
 280          * @param string $title
 281          * @return array Form descriptor
 282          */
 283         private function getTitleInputDesc( $title ) {
 284                 return [
 285                         'class' => 'HTMLTitleTextField',
 286                         'label-message' => 'speciallogtitlelabel',
 287                         'name' => 'page',
 288                         'value' => $title,
 289                         'required' => false
 290                 ];
 291         }
 292
 293         /**
 294          * @param bool $pattern
 295          * @return array Form descriptor
 296          */
 297         private function getTitlePatternDesc( $pattern ) {
 298                 return [
 299                         'type' => 'check',
 300                         'label-message' => 'log-title-wildcard',
 301                         'name' => 'pattern',
 302                 ];
 303         }
 304
 305         /**
 306          * @param array $types
 307          * @return array|string Form descriptor or string with HTML
 308          */
 309         private function getExtraInputsDesc( $types ) {
 310                 if ( count( $types ) == 1 ) {
 311                         if ( $types[0] == 'suppress' ) {
 312                                 $offender = $this->getRequest()->getVal( 'offender' );
 313                                 $user = User::newFromName( $offender, false );
 314                                 if ( !$user || ( $user->getId() == 0 && !IP::isIPAddress( $offender ) ) ) {
 315                                         $offender = ''; // Blank field if invalid
 316                                 }
 317                                 return [
 318                                         'type' => 'text',
 319                                         'label-message' => 'revdelete-offender',
 320                                         'name' => 'offender',
 321                                         'value' => $offender,
 322                                 ];
 323                         } else {
 324                                 // Allow extensions to add their own extra inputs
 325                                 // This could be an array or string. See T199495.
 326                                 $input = ''; // Deprecated
 327                                 $formDescriptor = [];
 328                                 Hooks::run( 'LogEventsListGetExtraInputs', [ $types[0], $this, &$input, &$formDescriptor ] );
 329
 330                                 return empty( $formDescriptor ) ? $input : $formDescriptor;
 331                         }
 332                 }
 333
 334                 return [];
 335         }
 336
 337         /**
 338          * Drop down menu for selection of actions that can be used to filter the log
 339          * @param array $types
 340          * @param string $action
 341          * @return array Form descriptor
 342          */
 343         private function getActionSelectorDesc( $types, $action ) {
 344                 $actionOptions = [];
 345                 $actionOptions[ 'log-action-filter-all' ] = '';
 346
 347                 foreach ( $this->allowedActions as $value ) {
 348                         $msgKey = 'log-action-filter-' . $types[0] . '-' . $value;
 349                         $actionOptions[ $msgKey ] = $value;
 350                 }
 351
 352                 return [
 353                         'class' => 'HTMLSelectField',
 354                         'name' => 'subtype',
 355                         'options-messages' => $actionOptions,
 356                         'default' => $action,
 357                         'label' => $this->msg( 'log-action-filter-' . $types[0] )->text(),
 358                 ];
 359         }
 360
 361         /**
 362          * Sets the action types allowed for log filtering
 363          * To one action type may correspond several log_actions
 364          * @param array $actions
 365          * @since 1.27
 366          */
 367         public function setAllowedActions( $actions ) {
 368                 $this->allowedActions = $actions;
 369         }
 370
 371         /**
 372          * @return string
 373          */
 374         public function beginLogEventsList() {
 375                 return "<ul>\n";
 376         }
 377
 378         /**
 379          * @return string
 380          */
 381         public function endLogEventsList() {
 382                 return "</ul>\n";
 383         }
 384
 385         /**
 386          * @param stdClass $row A single row from the result set
 387          * @return string Formatted HTML list item
 388          */
 389         public function logLine( $row ) {
 390                 $entry = DatabaseLogEntry::newFromRow( $row );
 391                 $formatter = LogFormatter::newFromEntry( $entry );
 392                 $formatter->setContext( $this->getContext() );
 393                 $formatter->setLinkRenderer( $this->getLinkRenderer() );
 394                 $formatter->setShowUserToolLinks( !( $this->flags & self::NO_EXTRA_USER_LINKS ) );
 395
 396                 $time = htmlspecialchars( $this->getLanguage()->userTimeAndDate(
 397                         $entry->getTimestamp(), $this->getUser() ) );
 398
 399                 $action = $formatter->getActionText();
 400
 401                 if ( $this->flags & self::NO_ACTION_LINK ) {
 402                         $revert = '';
 403                 } else {
 404                         $revert = $formatter->getActionLinks();
 405                         if ( $revert != '' ) {
 406                                 $revert = '<span class="mw-logevent-actionlink">' . $revert . '</span>';
 407                         }
 408                 }
 409
 410                 $comment = $formatter->getComment();
 411
 412                 // Some user can hide log items and have review links
 413                 $del = $this->getShowHideLinks( $row );
 414
 415                 // Any tags...
 416                 list( $tagDisplay, $newClasses ) = ChangeTags::formatSummaryRow(
 417                         $row->ts_tags,
 418                         'logevent',
 419                         $this->getContext()
 420                 );
 421                 $classes = array_merge(
 422                         [ 'mw-logline-' . $entry->getType() ],
 423                         $newClasses
 424                 );
 425                 $attribs = [
 426                         'data-mw-logid' => $entry->getId(),
 427                         'data-mw-logaction' => $entry->getFullType(),
 428                 ];
 429                 $ret = "$del $time $action $comment $revert $tagDisplay";
 430
 431                 // Let extensions add data
 432                 Hooks::run( 'LogEventsListLineEnding', [ $this, &$ret, $entry, &$classes, &$attribs ] );
 433                 $attribs = wfArrayFilterByKey( $attribs, [ Sanitizer::class, 'isReservedDataAttribute' ] );
 434                 $attribs['class'] = implode( ' ', $classes );
 435
 436                 return Html::rawElement( 'li', $attribs, $ret ) . "\n";
 437         }
 438
 439         /**
 440          * @param stdClass $row
 441          * @return string
 442          */
 443         private function getShowHideLinks( $row ) {
 444                 // We don't want to see the links and
 445                 if ( $this->flags == self::NO_ACTION_LINK ) {
 446                         return '';
 447                 }
 448
 449                 $user = $this->getUser();
 450
 451                 // If change tag editing is available to this user, return the checkbox
 452                 if ( $this->flags & self::USE_CHECKBOXES && $this->showTagEditUI ) {
 453                         return Xml::check(
 454                                 'showhiderevisions',
 455                                 false,
 456                                 [ 'name' => 'ids[' . $row->log_id . ']' ]
 457                         );
 458                 }
 459
 460                 // no one can hide items from the suppress log.
 461                 if ( $row->log_type == 'suppress' ) {
 462                         return '';
 463                 }
 464
 465                 $del = '';
 466                 // Don't show useless checkbox to people who cannot hide log entries
 467                 if ( $user->isAllowed( 'deletedhistory' ) ) {
 468                         $canHide = $user->isAllowed( 'deletelogentry' );
 469                         $canViewSuppressedOnly = $user->isAllowed( 'viewsuppressed' ) &&
 470                                 !$user->isAllowed( 'suppressrevision' );
 471                         $entryIsSuppressed = self::isDeleted( $row, LogPage::DELETED_RESTRICTED );
 472                         $canViewThisSuppressedEntry = $canViewSuppressedOnly && $entryIsSuppressed;
 473                         if ( $row->log_deleted || $canHide ) {
 474                                 // Show checkboxes instead of links.
 475                                 if ( $canHide && $this->flags & self::USE_CHECKBOXES && !$canViewThisSuppressedEntry ) {
 476                                         // If event was hidden from sysops
 477                                         if ( !self::userCan( $row, LogPage::DELETED_RESTRICTED, $user ) ) {
 478                                                 $del = Xml::check( 'deleterevisions', false, [ 'disabled' => 'disabled' ] );
 479                                         } else {
 480                                                 $del = Xml::check(
 481                                                         'showhiderevisions',
 482                                                         false,
 483                                                         [ 'name' => 'ids[' . $row->log_id . ']' ]
 484                                                 );
 485                                         }
 486                                 } else {
 487                                         // If event was hidden from sysops
 488                                         if ( !self::userCan( $row, LogPage::DELETED_RESTRICTED, $user ) ) {
 489                                                 $del = Linker::revDeleteLinkDisabled( $canHide );
 490                                         } else {
 491                                                 $query = [
 492                                                         'target' => SpecialPage::getTitleFor( 'Log', $row->log_type )->getPrefixedDBkey(),
 493                                                         'type' => 'logging',
 494                                                         'ids' => $row->log_id,
 495                                                 ];
 496                                                 $del = Linker::revDeleteLink(
 497                                                         $query,
 498                                                         $entryIsSuppressed,
 499                                                         $canHide && !$canViewThisSuppressedEntry
 500                                                 );
 501                                         }
 502                                 }
 503                         }
 504                 }
 505
 506                 return $del;
 507         }
 508
 509         /**
 510          * @param stdClass $row
 511          * @param string|array $type
 512          * @param string|array $action
 513          * @param string $right
 514          * @return bool
 515          */
 516         public static function typeAction( $row, $type, $action, $right = '' ) {
 517                 $match = is_array( $type ) ?
 518                         in_array( $row->log_type, $type ) : $row->log_type == $type;
 519                 if ( $match ) {
 520                         $match = is_array( $action ) ?
 521                                 in_array( $row->log_action, $action ) : $row->log_action == $action;
 522                         if ( $match && $right ) {
 523                                 global $wgUser;
 524                                 $match = $wgUser->isAllowed( $right );
 525                         }
 526                 }
 527
 528                 return $match;
 529         }
 530
 531         /**
 532          * Determine if the current user is allowed to view a particular
 533          * field of this log row, if it's marked as deleted.
 534          *
 535          * @param stdClass $row
 536          * @param int $field
 537          * @param User|null $user User to check, or null to use $wgUser
 538          * @return bool
 539          */
 540         public static function userCan( $row, $field, User $user = null ) {
 541                 return self::userCanBitfield( $row->log_deleted, $field, $user );
 542         }
 543
 544         /**
 545          * Determine if the current user is allowed to view a particular
 546          * field of this log row, if it's marked as deleted.
 547          *
 548          * @param int $bitfield Current field
 549          * @param int $field
 550          * @param User|null $user User to check, or null to use $wgUser
 551          * @return bool
 552          */
 553         public static function userCanBitfield( $bitfield, $field, User $user = null ) {
 554                 if ( $bitfield & $field ) {
 555                         if ( $user === null ) {
 556                                 global $wgUser;
 557                                 $user = $wgUser;
 558                         }
 559                         if ( $bitfield & LogPage::DELETED_RESTRICTED ) {
 560                                 $permissions = [ 'suppressrevision', 'viewsuppressed' ];
 561                         } else {
 562                                 $permissions = [ 'deletedhistory' ];
 563                         }
 564                         $permissionlist = implode( ', ', $permissions );
 565                         wfDebug( "Checking for $permissionlist due to $field match on $bitfield\n" );
 566                         return $user->isAllowedAny( ...$permissions );
 567                 }
 568                 return true;
 569         }
 570
 571         /**
 572          * @param stdClass $row
 573          * @param int $field One of DELETED_* bitfield constants
 574          * @return bool
 575          */
 576         public static function isDeleted( $row, $field ) {
 577                 return ( $row->log_deleted & $field ) == $field;
 578         }
 579
 580         /**
 581          * Show log extract. Either with text and a box (set $msgKey) or without (don't set $msgKey)
 582          *
 583          * @param OutputPage|string &$out
 584          * @param string|array $types Log types to show
 585          * @param string|Title $page The page title to show log entries for
 586          * @param string $user The user who made the log entries
 587          * @param array $param Associative Array with the following additional options:
 588          * - lim Integer Limit of items to show, default is 50
 589          * - conds Array Extra conditions for the query
 590          *   (e.g. 'log_action != ' . $dbr->addQuotes( 'revision' ))
 591          * - showIfEmpty boolean Set to false if you don't want any output in case the loglist is empty
 592          *   if set to true (default), "No matching items in log" is displayed if loglist is empty
 593          * - msgKey Array If you want a nice box with a message, set this to the key of the message.
 594          *   First element is the message key, additional optional elements are parameters for the key
 595          *   that are processed with wfMessage
 596          * - offset Set to overwrite offset parameter in WebRequest
 597          *   set to '' to unset offset
 598          * - wrap String Wrap the message in html (usually something like "<div ...>$1</div>").
 599          * - flags Integer display flags (NO_ACTION_LINK,NO_EXTRA_USER_LINKS)
 600          * - useRequestParams boolean Set true to use Pager-related parameters in the WebRequest
 601          * - useMaster boolean Use master DB
 602          * - extraUrlParams array|bool Additional url parameters for "full log" link (if it is shown)
 603          * @return int Number of total log items (not limited by $lim)
 604          */
 605         public static function showLogExtract(
 606                 &$out, $types = [], $page = '', $user = '', $param = []
 607         ) {
 608                 $defaultParameters = [
 609                         'lim' => 25,
 610                         'conds' => [],
 611                         'showIfEmpty' => true,
 612                         'msgKey' => [ '' ],
 613                         'wrap' => "$1",
 614                         'flags' => 0,
 615                         'useRequestParams' => false,
 616                         'useMaster' => false,
 617                         'extraUrlParams' => false,
 618                 ];
 619                 # The + operator appends elements of remaining keys from the right
 620                 # handed array to the left handed, whereas duplicated keys are NOT overwritten.
 621                 $param += $defaultParameters;
 622                 # Convert $param array to individual variables
 623                 $lim = $param['lim'];
 624                 $conds = $param['conds'];
 625                 $showIfEmpty = $param['showIfEmpty'];
 626                 $msgKey = $param['msgKey'];
 627                 $wrap = $param['wrap'];
 628                 $flags = $param['flags'];
 629                 $extraUrlParams = $param['extraUrlParams'];
 630
 631                 $useRequestParams = $param['useRequestParams'];
 632                 if ( !is_array( $msgKey ) ) {
 633                         $msgKey = [ $msgKey ];
 634                 }
 635
 636                 if ( $out instanceof OutputPage ) {
 637                         $context = $out->getContext();
 638                 } else {
 639                         $context = RequestContext::getMain();
 640                 }
 641
 642                 // FIXME: Figure out how to inject this
 643                 $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
 644
 645                 # Insert list of top 50 (or top $lim) items
 646                 $loglist = new LogEventsList( $context, $linkRenderer, $flags );
 647                 $pager = new LogPager( $loglist, $types, $user, $page, '', $conds );
 648                 if ( !$useRequestParams ) {
 649                         # Reset vars that may have been taken from the request
 650                         $pager->mLimit = 50;
 651                         $pager->mDefaultLimit = 50;
 652                         $pager->mOffset = "";
 653                         $pager->mIsBackwards = false;
 654                 }
 655
 656                 if ( $param['useMaster'] ) {
 657                         $pager->mDb = wfGetDB( DB_MASTER );
 658                 }
 659                 if ( isset( $param['offset'] ) ) { # Tell pager to ignore WebRequest offset
 660                         $pager->setOffset( $param['offset'] );
 661                 }
 662
 663                 if ( $lim > 0 ) {
 664                         $pager->mLimit = $lim;
 665                 }
 666                 // Fetch the log rows and build the HTML if needed
 667                 $logBody = $pager->getBody();
 668                 $numRows = $pager->getNumRows();
 669
 670                 $s = '';
 671
 672                 if ( $logBody ) {
 673                         if ( $msgKey[0] ) {
 674                                 $dir = $context->getLanguage()->getDir();
 675                                 $lang = $context->getLanguage()->getHtmlCode();
 676
 677                                 $s = Xml::openElement( 'div', [
 678                                         'class' => "mw-warning-with-logexcerpt mw-content-$dir",
 679                                         'dir' => $dir,
 680                                         'lang' => $lang,
 681                                 ] );
 682
 683                                 if ( count( $msgKey ) == 1 ) {
 684                                         $s .= $context->msg( $msgKey[0] )->parseAsBlock();
 685                                 } else { // Process additional arguments
 686                                         $args = $msgKey;
 687                                         array_shift( $args );
 688                                         $s .= $context->msg( $msgKey[0], $args )->parseAsBlock();
 689                                 }
 690                         }
 691                         $s .= $loglist->beginLogEventsList() .
 692                                 $logBody .
 693                                 $loglist->endLogEventsList();
 694                 } elseif ( $showIfEmpty ) {
 695                         $s = Html::rawElement( 'div', [ 'class' => 'mw-warning-logempty' ],
 696                                 $context->msg( 'logempty' )->parse() );
 697                 }
 698
 699                 if ( $numRows > $pager->mLimit ) { # Show "Full log" link
 700                         $urlParam = [];
 701                         if ( $page instanceof Title ) {
 702                                 $urlParam['page'] = $page->getPrefixedDBkey();
 703                         } elseif ( $page != '' ) {
 704                                 $urlParam['page'] = $page;
 705                         }
 706
 707                         if ( $user != '' ) {
 708                                 $urlParam['user'] = $user;
 709                         }
 710
 711                         if ( !is_array( $types ) ) { # Make it an array, if it isn't
 712                                 $types = [ $types ];
 713                         }
 714
 715                         # If there is exactly one log type, we can link to Special:Log?type=foo
 716                         if ( count( $types ) == 1 ) {
 717                                 $urlParam['type'] = $types[0];
 718                         }
 719
 720                         if ( $extraUrlParams !== false ) {
 721                                 $urlParam = array_merge( $urlParam, $extraUrlParams );
 722                         }
 723
 724                         $s .= $linkRenderer->makeKnownLink(
 725                                 SpecialPage::getTitleFor( 'Log' ),
 726                                 $context->msg( 'log-fulllog' )->text(),
 727                                 [],
 728                                 $urlParam
 729                         );
 730                 }
 731
 732                 if ( $logBody && $msgKey[0] ) {
 733                         $s .= '</div>';
 734                 }
 735
 736                 if ( $wrap != '' ) { // Wrap message in html
 737                         $s = str_replace( '$1', $s, $wrap );
 738                 }
 739
 740                 /* hook can return false, if we don't want the message to be emitted (Wikia BugId:7093) */
 741                 if ( Hooks::run( 'LogEventsListShowLogExtract', [ &$s, $types, $page, $user, $param ] ) ) {
 742                         // $out can be either an OutputPage object or a String-by-reference
 743                         if ( $out instanceof OutputPage ) {
 744                                 $out->addHTML( $s );
 745                         } else {
 746                                 $out = $s;
 747                         }
 748                 }
 749
 750                 return $numRows;
 751         }
 752
 753         /**
 754          * SQL clause to skip forbidden log types for this user
 755          *
 756          * @param IDatabase $db
 757          * @param string $audience Public/user
 758          * @param User|null $user User to check, or null to use $wgUser
 759          * @return string|bool String on success, false on failure.
 760          */
 761         public static function getExcludeClause( $db, $audience = 'public', User $user = null ) {
 762                 global $wgLogRestrictions;
 763
 764                 if ( $audience != 'public' && $user === null ) {
 765                         global $wgUser;
 766                         $user = $wgUser;
 767                 }
 768
 769                 // Reset the array, clears extra "where" clauses when $par is used
 770                 $hiddenLogs = [];
 771
 772                 // Don't show private logs to unprivileged users
 773                 foreach ( $wgLogRestrictions as $logType => $right ) {
 774                         if ( $audience == 'public' || !$user->isAllowed( $right ) ) {
 775                                 $hiddenLogs[] = $logType;
 776                         }
 777                 }
 778                 if ( count( $hiddenLogs ) == 1 ) {
 779                         return 'log_type != ' . $db->addQuotes( $hiddenLogs[0] );
 780                 } elseif ( $hiddenLogs ) {
 781                         return 'log_type NOT IN (' . $db->makeList( $hiddenLogs ) . ')';
 782                 }
 783
 784                 return false;
 785         }
 786 }