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                         $options[ $this->msg( "logeventslist-{$type}-log" )->text() ] = $type;
 200
 201                         if ( $val === false ) {
 202                                 $default[] = $type;
 203                         }
 204                 }
 205                 return [
 206                         'class' => 'HTMLMultiSelectField',
 207                         'label-message' => 'logeventslist-more-filters',
 208                         'flatlist' => true,
 209                         'options' => $options,
 210                         'default' => $default,
 211                 ];
 212         }
 213
 214         private function getDefaultQuery() {
 215                 if ( !isset( $this->mDefaultQuery ) ) {
 216                         $this->mDefaultQuery = $this->getRequest()->getQueryValues();
 217                         unset( $this->mDefaultQuery['title'] );
 218                         unset( $this->mDefaultQuery['dir'] );
 219                         unset( $this->mDefaultQuery['offset'] );
 220                         unset( $this->mDefaultQuery['limit'] );
 221                         unset( $this->mDefaultQuery['order'] );
 222                         unset( $this->mDefaultQuery['month'] );
 223                         unset( $this->mDefaultQuery['year'] );
 224                 }
 225
 226                 return $this->mDefaultQuery;
 227         }
 228
 229         /**
 230          * @param array $queryTypes
 231          * @return array Form descriptor
 232          */
 233         private function getTypeMenuDesc( $queryTypes ) {
 234                 $queryType = count( $queryTypes ) == 1 ? $queryTypes[0] : '';
 235
 236                 $typesByName = []; // Temporary array
 237                 // First pass to load the log names
 238                 foreach ( LogPage::validTypes() as $type ) {
 239                         $page = new LogPage( $type );
 240                         $restriction = $page->getRestriction();
 241                         if ( $this->getUser()->isAllowed( $restriction ) ) {
 242                                 $typesByName[$type] = $page->getName()->text();
 243                         }
 244                 }
 245
 246                 // Second pass to sort by name
 247                 asort( $typesByName );
 248
 249                 // Always put "All public logs" on top
 250                 $public = $typesByName[''];
 251                 unset( $typesByName[''] );
 252                 $typesByName = [ '' => $public ] + $typesByName;
 253
 254                 return [
 255                         'class' => 'HTMLSelectField',
 256                         'name' => 'type',
 257                         'options' => array_flip( $typesByName ),
 258                         'default' => $queryType,
 259                 ];
 260         }
 261
 262         /**
 263          * @param string $user
 264          * @return array Form descriptor
 265          */
 266         private function getUserInputDesc( $user ) {
 267                 return [
 268                         'class' => 'HTMLUserTextField',
 269                         'label-message' => 'specialloguserlabel',
 270                         'name' => 'user',
 271                 ];
 272         }
 273
 274         /**
 275          * @param string $title
 276          * @return array Form descriptor
 277          */
 278         private function getTitleInputDesc( $title ) {
 279                 return [
 280                         'class' => 'HTMLTitleTextField',
 281                         'label-message' => 'speciallogtitlelabel',
 282                         'name' => 'page',
 283                         'required' => false
 284                 ];
 285         }
 286
 287         /**
 288          * @param bool $pattern
 289          * @return array Form descriptor
 290          */
 291         private function getTitlePatternDesc( $pattern ) {
 292                 return [
 293                         'type' => 'check',
 294                         'label-message' => 'log-title-wildcard',
 295                         'name' => 'pattern',
 296                 ];
 297         }
 298
 299         /**
 300          * @param array $types
 301          * @return array|string Form descriptor or string with HTML
 302          */
 303         private function getExtraInputsDesc( $types ) {
 304                 if ( count( $types ) == 1 ) {
 305                         if ( $types[0] == 'suppress' ) {
 306                                 return [
 307                                         'type' => 'text',
 308                                         'label-message' => 'revdelete-offender',
 309                                         'name' => 'offender',
 310                                 ];
 311                         } else {
 312                                 // Allow extensions to add their own extra inputs
 313                                 // This could be an array or string. See T199495.
 314                                 $input = ''; // Deprecated
 315                                 $formDescriptor = [];
 316                                 Hooks::run( 'LogEventsListGetExtraInputs', [ $types[0], $this, &$input, &$formDescriptor ] );
 317
 318                                 return empty( $formDescriptor ) ? $input : $formDescriptor;
 319                         }
 320                 }
 321
 322                 return [];
 323         }
 324
 325         /**
 326          * Drop down menu for selection of actions that can be used to filter the log
 327          * @param array $types
 328          * @param string $action
 329          * @return array Form descriptor
 330          */
 331         private function getActionSelectorDesc( $types, $action ) {
 332                 $actionOptions = [];
 333                 $actionOptions[ 'log-action-filter-all' ] = '';
 334
 335                 foreach ( $this->allowedActions as $value ) {
 336                         $msgKey = 'log-action-filter-' . $types[0] . '-' . $value;
 337                         $actionOptions[ $msgKey ] = $value;
 338                 }
 339
 340                 return [
 341                         'class' => 'HTMLSelectField',
 342                         'name' => 'subtype',
 343                         'options-messages' => $actionOptions,
 344                         'default' => $action,
 345                         'label' => $this->msg( 'log-action-filter-' . $types[0] )->text(),
 346                 ];
 347         }
 348
 349         /**
 350          * Sets the action types allowed for log filtering
 351          * To one action type may correspond several log_actions
 352          * @param array $actions
 353          * @since 1.27
 354          */
 355         public function setAllowedActions( $actions ) {
 356                 $this->allowedActions = $actions;
 357         }
 358
 359         /**
 360          * @return string
 361          */
 362         public function beginLogEventsList() {
 363                 return "<ul>\n";
 364         }
 365
 366         /**
 367          * @return string
 368          */
 369         public function endLogEventsList() {
 370                 return "</ul>\n";
 371         }
 372
 373         /**
 374          * @param stdClass $row A single row from the result set
 375          * @return string Formatted HTML list item
 376          */
 377         public function logLine( $row ) {
 378                 $entry = DatabaseLogEntry::newFromRow( $row );
 379                 $formatter = LogFormatter::newFromEntry( $entry );
 380                 $formatter->setContext( $this->getContext() );
 381                 $formatter->setLinkRenderer( $this->getLinkRenderer() );
 382                 $formatter->setShowUserToolLinks( !( $this->flags & self::NO_EXTRA_USER_LINKS ) );
 383
 384                 $time = htmlspecialchars( $this->getLanguage()->userTimeAndDate(
 385                         $entry->getTimestamp(), $this->getUser() ) );
 386
 387                 $action = $formatter->getActionText();
 388
 389                 if ( $this->flags & self::NO_ACTION_LINK ) {
 390                         $revert = '';
 391                 } else {
 392                         $revert = $formatter->getActionLinks();
 393                         if ( $revert != '' ) {
 394                                 $revert = '<span class="mw-logevent-actionlink">' . $revert . '</span>';
 395                         }
 396                 }
 397
 398                 $comment = $formatter->getComment();
 399
 400                 // Some user can hide log items and have review links
 401                 $del = $this->getShowHideLinks( $row );
 402
 403                 // Any tags...
 404                 list( $tagDisplay, $newClasses ) = ChangeTags::formatSummaryRow(
 405                         $row->ts_tags,
 406                         'logevent',
 407                         $this->getContext()
 408                 );
 409                 $classes = array_merge(
 410                         [ 'mw-logline-' . $entry->getType() ],
 411                         $newClasses
 412                 );
 413                 $attribs = [
 414                         'data-mw-logid' => $entry->getId(),
 415                         'data-mw-logaction' => $entry->getFullType(),
 416                 ];
 417                 $ret = "$del $time $action $comment $revert $tagDisplay";
 418
 419                 // Let extensions add data
 420                 Hooks::run( 'LogEventsListLineEnding', [ $this, &$ret, $entry, &$classes, &$attribs ] );
 421                 $attribs = wfArrayFilterByKey( $attribs, [ Sanitizer::class, 'isReservedDataAttribute' ] );
 422                 $attribs['class'] = implode( ' ', $classes );
 423
 424                 return Html::rawElement( 'li', $attribs, $ret ) . "\n";
 425         }
 426
 427         /**
 428          * @param stdClass $row
 429          * @return string
 430          */
 431         private function getShowHideLinks( $row ) {
 432                 // We don't want to see the links and
 433                 if ( $this->flags == self::NO_ACTION_LINK ) {
 434                         return '';
 435                 }
 436
 437                 $user = $this->getUser();
 438
 439                 // If change tag editing is available to this user, return the checkbox
 440                 if ( $this->flags & self::USE_CHECKBOXES && $this->showTagEditUI ) {
 441                         return Xml::check(
 442                                 'showhiderevisions',
 443                                 false,
 444                                 [ 'name' => 'ids[' . $row->log_id . ']' ]
 445                         );
 446                 }
 447
 448                 // no one can hide items from the suppress log.
 449                 if ( $row->log_type == 'suppress' ) {
 450                         return '';
 451                 }
 452
 453                 $del = '';
 454                 // Don't show useless checkbox to people who cannot hide log entries
 455                 if ( $user->isAllowed( 'deletedhistory' ) ) {
 456                         $canHide = $user->isAllowed( 'deletelogentry' );
 457                         $canViewSuppressedOnly = $user->isAllowed( 'viewsuppressed' ) &&
 458                                 !$user->isAllowed( 'suppressrevision' );
 459                         $entryIsSuppressed = self::isDeleted( $row, LogPage::DELETED_RESTRICTED );
 460                         $canViewThisSuppressedEntry = $canViewSuppressedOnly && $entryIsSuppressed;
 461                         if ( $row->log_deleted || $canHide ) {
 462                                 // Show checkboxes instead of links.
 463                                 if ( $canHide && $this->flags & self::USE_CHECKBOXES && !$canViewThisSuppressedEntry ) {
 464                                         // If event was hidden from sysops
 465                                         if ( !self::userCan( $row, LogPage::DELETED_RESTRICTED, $user ) ) {
 466                                                 $del = Xml::check( 'deleterevisions', false, [ 'disabled' => 'disabled' ] );
 467                                         } else {
 468                                                 $del = Xml::check(
 469                                                         'showhiderevisions',
 470                                                         false,
 471                                                         [ 'name' => 'ids[' . $row->log_id . ']' ]
 472                                                 );
 473                                         }
 474                                 } else {
 475                                         // If event was hidden from sysops
 476                                         if ( !self::userCan( $row, LogPage::DELETED_RESTRICTED, $user ) ) {
 477                                                 $del = Linker::revDeleteLinkDisabled( $canHide );
 478                                         } else {
 479                                                 $query = [
 480                                                         'target' => SpecialPage::getTitleFor( 'Log', $row->log_type )->getPrefixedDBkey(),
 481                                                         'type' => 'logging',
 482                                                         'ids' => $row->log_id,
 483                                                 ];
 484                                                 $del = Linker::revDeleteLink(
 485                                                         $query,
 486                                                         $entryIsSuppressed,
 487                                                         $canHide && !$canViewThisSuppressedEntry
 488                                                 );
 489                                         }
 490                                 }
 491                         }
 492                 }
 493
 494                 return $del;
 495         }
 496
 497         /**
 498          * @param stdClass $row
 499          * @param string|array $type
 500          * @param string|array $action
 501          * @param string $right
 502          * @return bool
 503          */
 504         public static function typeAction( $row, $type, $action, $right = '' ) {
 505                 $match = is_array( $type ) ?
 506                         in_array( $row->log_type, $type ) : $row->log_type == $type;
 507                 if ( $match ) {
 508                         $match = is_array( $action ) ?
 509                                 in_array( $row->log_action, $action ) : $row->log_action == $action;
 510                         if ( $match && $right ) {
 511                                 global $wgUser;
 512                                 $match = $wgUser->isAllowed( $right );
 513                         }
 514                 }
 515
 516                 return $match;
 517         }
 518
 519         /**
 520          * Determine if the current user is allowed to view a particular
 521          * field of this log row, if it's marked as deleted.
 522          *
 523          * @param stdClass $row
 524          * @param int $field
 525          * @param User|null $user User to check, or null to use $wgUser
 526          * @return bool
 527          */
 528         public static function userCan( $row, $field, User $user = null ) {
 529                 return self::userCanBitfield( $row->log_deleted, $field, $user );
 530         }
 531
 532         /**
 533          * Determine if the current user is allowed to view a particular
 534          * field of this log row, if it's marked as deleted.
 535          *
 536          * @param int $bitfield Current field
 537          * @param int $field
 538          * @param User|null $user User to check, or null to use $wgUser
 539          * @return bool
 540          */
 541         public static function userCanBitfield( $bitfield, $field, User $user = null ) {
 542                 if ( $bitfield & $field ) {
 543                         if ( $user === null ) {
 544                                 global $wgUser;
 545                                 $user = $wgUser;
 546                         }
 547                         if ( $bitfield & LogPage::DELETED_RESTRICTED ) {
 548                                 $permissions = [ 'suppressrevision', 'viewsuppressed' ];
 549                         } else {
 550                                 $permissions = [ 'deletedhistory' ];
 551                         }
 552                         $permissionlist = implode( ', ', $permissions );
 553                         wfDebug( "Checking for $permissionlist due to $field match on $bitfield\n" );
 554                         return $user->isAllowedAny( ...$permissions );
 555                 }
 556                 return true;
 557         }
 558
 559         /**
 560          * @param stdClass $row
 561          * @param int $field One of DELETED_* bitfield constants
 562          * @return bool
 563          */
 564         public static function isDeleted( $row, $field ) {
 565                 return ( $row->log_deleted & $field ) == $field;
 566         }
 567
 568         /**
 569          * Show log extract. Either with text and a box (set $msgKey) or without (don't set $msgKey)
 570          *
 571          * @param OutputPage|string &$out
 572          * @param string|array $types Log types to show
 573          * @param string|Title $page The page title to show log entries for
 574          * @param string $user The user who made the log entries
 575          * @param array $param Associative Array with the following additional options:
 576          * - lim Integer Limit of items to show, default is 50
 577          * - conds Array Extra conditions for the query
 578          *   (e.g. 'log_action != ' . $dbr->addQuotes( 'revision' ))
 579          * - showIfEmpty boolean Set to false if you don't want any output in case the loglist is empty
 580          *   if set to true (default), "No matching items in log" is displayed if loglist is empty
 581          * - msgKey Array If you want a nice box with a message, set this to the key of the message.
 582          *   First element is the message key, additional optional elements are parameters for the key
 583          *   that are processed with wfMessage
 584          * - offset Set to overwrite offset parameter in WebRequest
 585          *   set to '' to unset offset
 586          * - wrap String Wrap the message in html (usually something like "<div ...>$1</div>").
 587          * - flags Integer display flags (NO_ACTION_LINK,NO_EXTRA_USER_LINKS)
 588          * - useRequestParams boolean Set true to use Pager-related parameters in the WebRequest
 589          * - useMaster boolean Use master DB
 590          * - extraUrlParams array|bool Additional url parameters for "full log" link (if it is shown)
 591          * @return int Number of total log items (not limited by $lim)
 592          */
 593         public static function showLogExtract(
 594                 &$out, $types = [], $page = '', $user = '', $param = []
 595         ) {
 596                 $defaultParameters = [
 597                         'lim' => 25,
 598                         'conds' => [],
 599                         'showIfEmpty' => true,
 600                         'msgKey' => [ '' ],
 601                         'wrap' => "$1",
 602                         'flags' => 0,
 603                         'useRequestParams' => false,
 604                         'useMaster' => false,
 605                         'extraUrlParams' => false,
 606                 ];
 607                 # The + operator appends elements of remaining keys from the right
 608                 # handed array to the left handed, whereas duplicated keys are NOT overwritten.
 609                 $param += $defaultParameters;
 610                 # Convert $param array to individual variables
 611                 $lim = $param['lim'];
 612                 $conds = $param['conds'];
 613                 $showIfEmpty = $param['showIfEmpty'];
 614                 $msgKey = $param['msgKey'];
 615                 $wrap = $param['wrap'];
 616                 $flags = $param['flags'];
 617                 $extraUrlParams = $param['extraUrlParams'];
 618
 619                 $useRequestParams = $param['useRequestParams'];
 620                 if ( !is_array( $msgKey ) ) {
 621                         $msgKey = [ $msgKey ];
 622                 }
 623
 624                 if ( $out instanceof OutputPage ) {
 625                         $context = $out->getContext();
 626                 } else {
 627                         $context = RequestContext::getMain();
 628                 }
 629
 630                 // FIXME: Figure out how to inject this
 631                 $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
 632
 633                 # Insert list of top 50 (or top $lim) items
 634                 $loglist = new LogEventsList( $context, $linkRenderer, $flags );
 635                 $pager = new LogPager( $loglist, $types, $user, $page, '', $conds );
 636                 if ( !$useRequestParams ) {
 637                         # Reset vars that may have been taken from the request
 638                         $pager->mLimit = 50;
 639                         $pager->mDefaultLimit = 50;
 640                         $pager->mOffset = "";
 641                         $pager->mIsBackwards = false;
 642                 }
 643
 644                 if ( $param['useMaster'] ) {
 645                         $pager->mDb = wfGetDB( DB_MASTER );
 646                 }
 647                 if ( isset( $param['offset'] ) ) { # Tell pager to ignore WebRequest offset
 648                         $pager->setOffset( $param['offset'] );
 649                 }
 650
 651                 if ( $lim > 0 ) {
 652                         $pager->mLimit = $lim;
 653                 }
 654                 // Fetch the log rows and build the HTML if needed
 655                 $logBody = $pager->getBody();
 656                 $numRows = $pager->getNumRows();
 657
 658                 $s = '';
 659
 660                 if ( $logBody ) {
 661                         if ( $msgKey[0] ) {
 662                                 $dir = $context->getLanguage()->getDir();
 663                                 $lang = $context->getLanguage()->getHtmlCode();
 664
 665                                 $s = Xml::openElement( 'div', [
 666                                         'class' => "mw-warning-with-logexcerpt mw-content-$dir",
 667                                         'dir' => $dir,
 668                                         'lang' => $lang,
 669                                 ] );
 670
 671                                 if ( count( $msgKey ) == 1 ) {
 672                                         $s .= $context->msg( $msgKey[0] )->parseAsBlock();
 673                                 } else { // Process additional arguments
 674                                         $args = $msgKey;
 675                                         array_shift( $args );
 676                                         $s .= $context->msg( $msgKey[0], $args )->parseAsBlock();
 677                                 }
 678                         }
 679                         $s .= $loglist->beginLogEventsList() .
 680                                 $logBody .
 681                                 $loglist->endLogEventsList();
 682                 } elseif ( $showIfEmpty ) {
 683                         $s = Html::rawElement( 'div', [ 'class' => 'mw-warning-logempty' ],
 684                                 $context->msg( 'logempty' )->parse() );
 685                 }
 686
 687                 if ( $numRows > $pager->mLimit ) { # Show "Full log" link
 688                         $urlParam = [];
 689                         if ( $page instanceof Title ) {
 690                                 $urlParam['page'] = $page->getPrefixedDBkey();
 691                         } elseif ( $page != '' ) {
 692                                 $urlParam['page'] = $page;
 693                         }
 694
 695                         if ( $user != '' ) {
 696                                 $urlParam['user'] = $user;
 697                         }
 698
 699                         if ( !is_array( $types ) ) { # Make it an array, if it isn't
 700                                 $types = [ $types ];
 701                         }
 702
 703                         # If there is exactly one log type, we can link to Special:Log?type=foo
 704                         if ( count( $types ) == 1 ) {
 705                                 $urlParam['type'] = $types[0];
 706                         }
 707
 708                         if ( $extraUrlParams !== false ) {
 709                                 $urlParam = array_merge( $urlParam, $extraUrlParams );
 710                         }
 711
 712                         $s .= $linkRenderer->makeKnownLink(
 713                                 SpecialPage::getTitleFor( 'Log' ),
 714                                 $context->msg( 'log-fulllog' )->text(),
 715                                 [],
 716                                 $urlParam
 717                         );
 718                 }
 719
 720                 if ( $logBody && $msgKey[0] ) {
 721                         $s .= '</div>';
 722                 }
 723
 724                 if ( $wrap != '' ) { // Wrap message in html
 725                         $s = str_replace( '$1', $s, $wrap );
 726                 }
 727
 728                 /* hook can return false, if we don't want the message to be emitted (Wikia BugId:7093) */
 729                 if ( Hooks::run( 'LogEventsListShowLogExtract', [ &$s, $types, $page, $user, $param ] ) ) {
 730                         // $out can be either an OutputPage object or a String-by-reference
 731                         if ( $out instanceof OutputPage ) {
 732                                 $out->addHTML( $s );
 733                         } else {
 734                                 $out = $s;
 735                         }
 736                 }
 737
 738                 return $numRows;
 739         }
 740
 741         /**
 742          * SQL clause to skip forbidden log types for this user
 743          *
 744          * @param IDatabase $db
 745          * @param string $audience Public/user
 746          * @param User|null $user User to check, or null to use $wgUser
 747          * @return string|bool String on success, false on failure.
 748          */
 749         public static function getExcludeClause( $db, $audience = 'public', User $user = null ) {
 750                 global $wgLogRestrictions;
 751
 752                 if ( $audience != 'public' && $user === null ) {
 753                         global $wgUser;
 754                         $user = $wgUser;
 755                 }
 756
 757                 // Reset the array, clears extra "where" clauses when $par is used
 758                 $hiddenLogs = [];
 759
 760                 // Don't show private logs to unprivileged users
 761                 foreach ( $wgLogRestrictions as $logType => $right ) {
 762                         if ( $audience == 'public' || !$user->isAllowed( $right ) ) {
 763                                 $hiddenLogs[] = $logType;
 764                         }
 765                 }
 766                 if ( count( $hiddenLogs ) == 1 ) {
 767                         return 'log_type != ' . $db->addQuotes( $hiddenLogs[0] );
 768                 } elseif ( $hiddenLogs ) {
 769                         return 'log_type NOT IN (' . $db->makeList( $hiddenLogs ) . ')';
 770                 }
 771
 772                 return false;
 773         }
 774 }