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          * @deprecated since 1.34, no longer used.
  40          */
  41         protected $mDefaultQuery;
  42
  43         /**
  44          * @var bool
  45          */
  46         protected $showTagEditUI;
  47
  48         /**
  49          * @var array
  50          */
  51         protected $allowedActions = null;
  52
  53         /**
  54          * @var LinkRenderer|null
  55          */
  56         private $linkRenderer;
  57
  58         /**
  59          * The first two parameters used to be $skin and $out, but now only a context
  60          * is needed, that's why there's a second unused parameter.
  61          *
  62          * @param IContextSource|Skin $context Context to use; formerly it was
  63          *   a Skin object. Use of Skin is deprecated.
  64          * @param LinkRenderer|null $linkRenderer previously unused
  65          * @param int $flags Can be a combination of self::NO_ACTION_LINK,
  66          *   self::NO_EXTRA_USER_LINKS or self::USE_CHECKBOXES.
  67          */
  68         public function __construct( $context, $linkRenderer = null, $flags = 0 ) {
  69                 if ( $context instanceof IContextSource ) {
  70                         $this->setContext( $context );
  71                 } else {
  72                         // Old parameters, $context should be a Skin object
  73                         $this->setContext( $context->getContext() );
  74                 }
  75
  76                 $this->flags = $flags;
  77                 $this->showTagEditUI = ChangeTags::showTagEditingUI( $this->getUser() );
  78                 if ( $linkRenderer instanceof LinkRenderer ) {
  79                         $this->linkRenderer = $linkRenderer;
  80                 }
  81         }
  82
  83         /**
  84          * @since 1.30
  85          * @return LinkRenderer
  86          */
  87         protected function getLinkRenderer() {
  88                 if ( $this->linkRenderer !== null ) {
  89                         return $this->linkRenderer;
  90                 } else {
  91                         return MediaWikiServices::getInstance()->getLinkRenderer();
  92                 }
  93         }
  94
  95         /**
  96          * Show options for the log list
  97          *
  98          * @param array|string $types
  99          * @param string $user
 100          * @param string $page
 101          * @param bool $pattern
 102          * @param int|string $year Use 0 to start with no year preselected.
 103          * @param int|string $month A month in the 1..12 range. Use 0 to start with no month
 104          *  preselected.
 105          * @param int|string $day A day in the 1..31 range. Use 0 to start with no month
 106          *  preselected.
 107          * @param array|null $filter
 108          * @param string $tagFilter Tag to select by default
 109          * @param string|null $action
 110          */
 111         public function showOptions( $types = [], $user = '', $page = '', $pattern = false, $year = 0,
 112                 $month = 0, $day = 0, $filter = null, $tagFilter = '', $action = null
 113         ) {
 114                 // For B/C, we take strings, but make sure they are converted...
 115                 $types = ( $types === '' ) ? [] : (array)$types;
 116
 117                 $formDescriptor = [];
 118
 119                 // Basic selectors
 120                 $formDescriptor['type'] = $this->getTypeMenuDesc( $types );
 121                 $formDescriptor['user'] = $this->getUserInputDesc( $user );
 122                 $formDescriptor['page'] = $this->getTitleInputDesc( $page );
 123
 124                 // Add extra inputs if any
 125                 // This could either be a form descriptor array or a string with raw HTML.
 126                 // We need it to work in both cases and show a deprecation warning if it
 127                 // is a string. See T199495.
 128                 $extraInputsDescriptor = $this->getExtraInputsDesc( $types );
 129                 if (
 130                         is_array( $extraInputsDescriptor ) &&
 131                         !empty( $extraInputsDescriptor )
 132                 ) {
 133                         $formDescriptor[ 'extra' ] = $extraInputsDescriptor;
 134                 } elseif (
 135                         is_string( $extraInputsDescriptor ) &&
 136                         $extraInputsDescriptor !== ''
 137                 ) {
 138                         // We'll add this to the footer of the form later
 139                         $extraInputsString = $extraInputsDescriptor;
 140                         wfDeprecated( '$input in LogEventsListGetExtraInputs hook', '1.32' );
 141                 }
 142
 143                 // Title pattern, if allowed
 144                 if ( !$this->getConfig()->get( 'MiserMode' ) ) {
 145                         $formDescriptor['pattern'] = $this->getTitlePatternDesc( $pattern );
 146                 }
 147
 148                 // Date menu
 149                 $formDescriptor['date'] = [
 150                         'type' => 'date',
 151                         'label-message' => 'date',
 152                         'default' => $year && $month && $day ? sprintf( "%04d-%02d-%02d", $year, $month, $day ) : '',
 153                 ];
 154
 155                 // Tag filter
 156                 $formDescriptor['tagfilter'] = [
 157                         'type' => 'tagfilter',
 158                         'name' => 'tagfilter',
 159                         'label-raw' => $this->msg( 'tag-filter' )->parse(),
 160                 ];
 161
 162                 // Filter links
 163                 if ( $filter ) {
 164                         $formDescriptor['filters'] = $this->getFiltersDesc( $filter );
 165                 }
 166
 167                 // Action filter
 168                 if (
 169                         $action !== null &&
 170                         $this->allowedActions !== null &&
 171                         count( $this->allowedActions ) > 0
 172                 ) {
 173                         $formDescriptor['subtype'] = $this->getActionSelectorDesc( $types, $action );
 174                 }
 175
 176                 $context = new DerivativeContext( $this->getContext() );
 177                 $context->setTitle( SpecialPage::getTitleFor( 'Log' ) ); // Remove subpage
 178                 $htmlForm = HTMLForm::factory( 'ooui', $formDescriptor, $context );
 179                 $htmlForm
 180                         ->setSubmitText( $this->msg( 'logeventslist-submit' )->text() )
 181                         ->setMethod( 'get' )
 182                         ->setWrapperLegendMsg( 'log' );
 183
 184                 // TODO This will should be removed at some point. See T199495.
 185                 if ( isset( $extraInputsString ) ) {
 186                         $htmlForm->addFooterText( Html::rawElement(
 187                                 'div',
 188                                 null,
 189                                 $extraInputsString
 190                         ) );
 191                 }
 192
 193                 $htmlForm->prepareForm()->displayForm( false );
 194         }
 195
 196         /**
 197          * @param array $filter
 198          * @return array Form descriptor
 199          */
 200         private function getFiltersDesc( $filter ) {
 201                 $options = [];
 202                 $default = [];
 203                 foreach ( $filter as $type => $val ) {
 204                         $message = $this->msg( "logeventslist-{$type}-log" );
 205                         // FIXME: Remove this check once T199657 is fully resolved.
 206                         if ( !$message->exists() ) {
 207                                 $message = $this->msg( "log-show-hide-{$type}" )->params( $this->msg( 'show' )->text() );
 208                         }
 209                         $options[ $message->text() ] = $type;
 210
 211                         if ( $val === false ) {
 212                                 $default[] = $type;
 213                         }
 214                 }
 215                 return [
 216                         'class' => 'HTMLMultiSelectField',
 217                         'label-message' => 'logeventslist-more-filters',
 218                         'flatlist' => true,
 219                         'options' => $options,
 220                         'default' => $default,
 221                 ];
 222         }
 223
 224         /**
 225          * @param array $queryTypes
 226          * @return array Form descriptor
 227          */
 228         private function getTypeMenuDesc( $queryTypes ) {
 229                 $queryType = count( $queryTypes ) == 1 ? $queryTypes[0] : '';
 230
 231                 $typesByName = []; // Temporary array
 232                 // First pass to load the log names
 233                 foreach ( LogPage::validTypes() as $type ) {
 234                         $page = new LogPage( $type );
 235                         $restriction = $page->getRestriction();
 236                         if ( $this->getUser()->isAllowed( $restriction ) ) {
 237                                 $typesByName[$type] = $page->getName()->text();
 238                         }
 239                 }
 240
 241                 // Second pass to sort by name
 242                 asort( $typesByName );
 243
 244                 // Always put "All public logs" on top
 245                 $public = $typesByName[''];
 246                 unset( $typesByName[''] );
 247                 $typesByName = [ '' => $public ] + $typesByName;
 248
 249                 return [
 250                         'class' => 'HTMLSelectField',
 251                         'name' => 'type',
 252                         'options' => array_flip( $typesByName ),
 253                         'default' => $queryType,
 254                 ];
 255         }
 256
 257         /**
 258          * @param string $user
 259          * @return array Form descriptor
 260          */
 261         private function getUserInputDesc( $user ) {
 262                 return [
 263                         'class' => 'HTMLUserTextField',
 264                         'label-message' => 'specialloguserlabel',
 265                         'name' => 'user',
 266                         'default' => $user,
 267                 ];
 268         }
 269
 270         /**
 271          * @param string $title
 272          * @return array Form descriptor
 273          */
 274         private function getTitleInputDesc( $title ) {
 275                 return [
 276                         'class' => 'HTMLTitleTextField',
 277                         'label-message' => 'speciallogtitlelabel',
 278                         'name' => 'page',
 279                         'required' => false
 280                 ];
 281         }
 282
 283         /**
 284          * @param bool $pattern
 285          * @return array Form descriptor
 286          */
 287         private function getTitlePatternDesc( $pattern ) {
 288                 return [
 289                         'type' => 'check',
 290                         'label-message' => 'log-title-wildcard',
 291                         'name' => 'pattern',
 292                 ];
 293         }
 294
 295         /**
 296          * @param array $types
 297          * @return array|string Form descriptor or string with HTML
 298          */
 299         private function getExtraInputsDesc( $types ) {
 300                 if ( count( $types ) == 1 ) {
 301                         if ( $types[0] == 'suppress' ) {
 302                                 return [
 303                                         'type' => 'text',
 304                                         'label-message' => 'revdelete-offender',
 305                                         'name' => 'offender',
 306                                 ];
 307                         } else {
 308                                 // Allow extensions to add their own extra inputs
 309                                 // This could be an array or string. See T199495.
 310                                 $input = ''; // Deprecated
 311                                 $formDescriptor = [];
 312                                 Hooks::run( 'LogEventsListGetExtraInputs', [ $types[0], $this, &$input, &$formDescriptor ] );
 313
 314                                 return empty( $formDescriptor ) ? $input : $formDescriptor;
 315                         }
 316                 }
 317
 318                 return [];
 319         }
 320
 321         /**
 322          * Drop down menu for selection of actions that can be used to filter the log
 323          * @param array $types
 324          * @param string $action
 325          * @return array Form descriptor
 326          */
 327         private function getActionSelectorDesc( $types, $action ) {
 328                 $actionOptions = [];
 329                 $actionOptions[ 'log-action-filter-all' ] = '';
 330
 331                 foreach ( $this->allowedActions as $value ) {
 332                         $msgKey = 'log-action-filter-' . $types[0] . '-' . $value;
 333                         $actionOptions[ $msgKey ] = $value;
 334                 }
 335
 336                 return [
 337                         'class' => 'HTMLSelectField',
 338                         'name' => 'subtype',
 339                         'options-messages' => $actionOptions,
 340                         'default' => $action,
 341                         'label' => $this->msg( 'log-action-filter-' . $types[0] )->text(),
 342                 ];
 343         }
 344
 345         /**
 346          * Sets the action types allowed for log filtering
 347          * To one action type may correspond several log_actions
 348          * @param array $actions
 349          * @since 1.27
 350          */
 351         public function setAllowedActions( $actions ) {
 352                 $this->allowedActions = $actions;
 353         }
 354
 355         /**
 356          * @return string
 357          */
 358         public function beginLogEventsList() {
 359                 return "<ul>\n";
 360         }
 361
 362         /**
 363          * @return string
 364          */
 365         public function endLogEventsList() {
 366                 return "</ul>\n";
 367         }
 368
 369         /**
 370          * @param stdClass $row A single row from the result set
 371          * @return string Formatted HTML list item
 372          */
 373         public function logLine( $row ) {
 374                 $entry = DatabaseLogEntry::newFromRow( $row );
 375                 $formatter = LogFormatter::newFromEntry( $entry );
 376                 $formatter->setContext( $this->getContext() );
 377                 $formatter->setLinkRenderer( $this->getLinkRenderer() );
 378                 $formatter->setShowUserToolLinks( !( $this->flags & self::NO_EXTRA_USER_LINKS ) );
 379
 380                 $time = htmlspecialchars( $this->getLanguage()->userTimeAndDate(
 381                         $entry->getTimestamp(), $this->getUser() ) );
 382
 383                 $action = $formatter->getActionText();
 384
 385                 if ( $this->flags & self::NO_ACTION_LINK ) {
 386                         $revert = '';
 387                 } else {
 388                         $revert = $formatter->getActionLinks();
 389                         if ( $revert != '' ) {
 390                                 $revert = '<span class="mw-logevent-actionlink">' . $revert . '</span>';
 391                         }
 392                 }
 393
 394                 $comment = $formatter->getComment();
 395
 396                 // Some user can hide log items and have review links
 397                 $del = $this->getShowHideLinks( $row );
 398
 399                 // Any tags...
 400                 list( $tagDisplay, $newClasses ) = ChangeTags::formatSummaryRow(
 401                         $row->ts_tags,
 402                         'logevent',
 403                         $this->getContext()
 404                 );
 405                 $classes = array_merge(
 406                         [ 'mw-logline-' . $entry->getType() ],
 407                         $newClasses
 408                 );
 409                 $attribs = [
 410                         'data-mw-logid' => $entry->getId(),
 411                         'data-mw-logaction' => $entry->getFullType(),
 412                 ];
 413                 $ret = "$del $time $action $comment $revert $tagDisplay";
 414
 415                 // Let extensions add data
 416                 Hooks::run( 'LogEventsListLineEnding', [ $this, &$ret, $entry, &$classes, &$attribs ] );
 417                 $attribs = array_filter( $attribs,
 418                         [ Sanitizer::class, 'isReservedDataAttribute' ],
 419                         ARRAY_FILTER_USE_KEY
 420                 );
 421                 $attribs['class'] = implode( ' ', $classes );
 422
 423                 return Html::rawElement( 'li', $attribs, $ret ) . "\n";
 424         }
 425
 426         /**
 427          * @param stdClass $row
 428          * @return string
 429          */
 430         private function getShowHideLinks( $row ) {
 431                 // We don't want to see the links and
 432                 if ( $this->flags == self::NO_ACTION_LINK ) {
 433                         return '';
 434                 }
 435
 436                 $user = $this->getUser();
 437
 438                 // If change tag editing is available to this user, return the checkbox
 439                 if ( $this->flags & self::USE_CHECKBOXES && $this->showTagEditUI ) {
 440                         return Xml::check(
 441                                 'showhiderevisions',
 442                                 false,
 443                                 [ 'name' => 'ids[' . $row->log_id . ']' ]
 444                         );
 445                 }
 446
 447                 // no one can hide items from the suppress log.
 448                 if ( $row->log_type == 'suppress' ) {
 449                         return '';
 450                 }
 451
 452                 $del = '';
 453                 // Don't show useless checkbox to people who cannot hide log entries
 454                 if ( $user->isAllowed( 'deletedhistory' ) ) {
 455                         $canHide = $user->isAllowed( 'deletelogentry' );
 456                         $canViewSuppressedOnly = $user->isAllowed( 'viewsuppressed' ) &&
 457                                 !$user->isAllowed( 'suppressrevision' );
 458                         $entryIsSuppressed = self::isDeleted( $row, LogPage::DELETED_RESTRICTED );
 459                         $canViewThisSuppressedEntry = $canViewSuppressedOnly && $entryIsSuppressed;
 460                         if ( $row->log_deleted || $canHide ) {
 461                                 // Show checkboxes instead of links.
 462                                 if ( $canHide && $this->flags & self::USE_CHECKBOXES && !$canViewThisSuppressedEntry ) {
 463                                         // If event was hidden from sysops
 464                                         if ( !self::userCan( $row, LogPage::DELETED_RESTRICTED, $user ) ) {
 465                                                 $del = Xml::check( 'deleterevisions', false, [ 'disabled' => 'disabled' ] );
 466                                         } else {
 467                                                 $del = Xml::check(
 468                                                         'showhiderevisions',
 469                                                         false,
 470                                                         [ 'name' => 'ids[' . $row->log_id . ']' ]
 471                                                 );
 472                                         }
 473                                 } else {
 474                                         // If event was hidden from sysops
 475                                         if ( !self::userCan( $row, LogPage::DELETED_RESTRICTED, $user ) ) {
 476                                                 $del = Linker::revDeleteLinkDisabled( $canHide );
 477                                         } else {
 478                                                 $query = [
 479                                                         'target' => SpecialPage::getTitleFor( 'Log', $row->log_type )->getPrefixedDBkey(),
 480                                                         'type' => 'logging',
 481                                                         'ids' => $row->log_id,
 482                                                 ];
 483                                                 $del = Linker::revDeleteLink(
 484                                                         $query,
 485                                                         $entryIsSuppressed,
 486                                                         $canHide && !$canViewThisSuppressedEntry
 487                                                 );
 488                                         }
 489                                 }
 490                         }
 491                 }
 492
 493                 return $del;
 494         }
 495
 496         /**
 497          * @param stdClass $row
 498          * @param string|array $type
 499          * @param string|array $action
 500          * @param string $right
 501          * @return bool
 502          */
 503         public static function typeAction( $row, $type, $action, $right = '' ) {
 504                 $match = is_array( $type ) ?
 505                         in_array( $row->log_type, $type ) : $row->log_type == $type;
 506                 if ( $match ) {
 507                         $match = is_array( $action ) ?
 508                                 in_array( $row->log_action, $action ) : $row->log_action == $action;
 509                         if ( $match && $right ) {
 510                                 global $wgUser;
 511                                 $match = $wgUser->isAllowed( $right );
 512                         }
 513                 }
 514
 515                 return $match;
 516         }
 517
 518         /**
 519          * Determine if the current user is allowed to view a particular
 520          * field of this log row, if it's marked as deleted and/or restricted log type.
 521          *
 522          * @param stdClass $row
 523          * @param int $field
 524          * @param User|null $user User to check, or null to use $wgUser
 525          * @return bool
 526          */
 527         public static function userCan( $row, $field, User $user = null ) {
 528                 return self::userCanBitfield( $row->log_deleted, $field, $user ) &&
 529                         self::userCanViewLogType( $row->log_type, $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 MediaWikiServices::getInstance()
 555                                 ->getPermissionManager()
 556                                 ->userHasAnyRight( $user, ...$permissions );
 557                 }
 558                 return true;
 559         }
 560
 561         /**
 562          * Determine if the current user is allowed to view a particular
 563          * field of this log row, if it's marked as restricted log type.
 564          *
 565          * @param stdClass $type
 566          * @param User|null $user User to check, or null to use $wgUser
 567          * @return bool
 568          */
 569         public static function userCanViewLogType( $type, User $user = null ) {
 570                 if ( $user === null ) {
 571                         global $wgUser;
 572                         $user = $wgUser;
 573                 }
 574                 $logRestrictions = MediaWikiServices::getInstance()->getMainConfig()->get( 'LogRestrictions' );
 575                 if ( isset( $logRestrictions[$type] ) && !$user->isAllowed( $logRestrictions[$type] ) ) {
 576                         return false;
 577                 }
 578                 return true;
 579         }
 580
 581         /**
 582          * @param stdClass $row
 583          * @param int $field One of DELETED_* bitfield constants
 584          * @return bool
 585          */
 586         public static function isDeleted( $row, $field ) {
 587                 return ( $row->log_deleted & $field ) == $field;
 588         }
 589
 590         /**
 591          * Show log extract. Either with text and a box (set $msgKey) or without (don't set $msgKey)
 592          *
 593          * @param OutputPage|string &$out
 594          * @param string|array $types Log types to show
 595          * @param string|Title $page The page title to show log entries for
 596          * @param string $user The user who made the log entries
 597          * @param array $param Associative Array with the following additional options:
 598          * - lim Integer Limit of items to show, default is 50
 599          * - conds Array Extra conditions for the query
 600          *   (e.g. 'log_action != ' . $dbr->addQuotes( 'revision' ))
 601          * - showIfEmpty boolean Set to false if you don't want any output in case the loglist is empty
 602          *   if set to true (default), "No matching items in log" is displayed if loglist is empty
 603          * - msgKey Array If you want a nice box with a message, set this to the key of the message.
 604          *   First element is the message key, additional optional elements are parameters for the key
 605          *   that are processed with wfMessage
 606          * - offset Set to overwrite offset parameter in WebRequest
 607          *   set to '' to unset offset
 608          * - wrap String Wrap the message in html (usually something like "<div ...>$1</div>").
 609          * - flags Integer display flags (NO_ACTION_LINK,NO_EXTRA_USER_LINKS)
 610          * - useRequestParams boolean Set true to use Pager-related parameters in the WebRequest
 611          * - useMaster boolean Use master DB
 612          * - extraUrlParams array|bool Additional url parameters for "full log" link (if it is shown)
 613          * @return int Number of total log items (not limited by $lim)
 614          */
 615         public static function showLogExtract(
 616                 &$out, $types = [], $page = '', $user = '', $param = []
 617         ) {
 618                 $defaultParameters = [
 619                         'lim' => 25,
 620                         'conds' => [],
 621                         'showIfEmpty' => true,
 622                         'msgKey' => [ '' ],
 623                         'wrap' => "$1",
 624                         'flags' => 0,
 625                         'useRequestParams' => false,
 626                         'useMaster' => false,
 627                         'extraUrlParams' => false,
 628                 ];
 629                 # The + operator appends elements of remaining keys from the right
 630                 # handed array to the left handed, whereas duplicated keys are NOT overwritten.
 631                 $param += $defaultParameters;
 632                 # Convert $param array to individual variables
 633                 $lim = $param['lim'];
 634                 $conds = $param['conds'];
 635                 $showIfEmpty = $param['showIfEmpty'];
 636                 $msgKey = $param['msgKey'];
 637                 $wrap = $param['wrap'];
 638                 $flags = $param['flags'];
 639                 $extraUrlParams = $param['extraUrlParams'];
 640
 641                 $useRequestParams = $param['useRequestParams'];
 642                 if ( !is_array( $msgKey ) ) {
 643                         $msgKey = [ $msgKey ];
 644                 }
 645
 646                 if ( $out instanceof OutputPage ) {
 647                         $context = $out->getContext();
 648                 } else {
 649                         $context = RequestContext::getMain();
 650                 }
 651
 652                 // FIXME: Figure out how to inject this
 653                 $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
 654
 655                 # Insert list of top 50 (or top $lim) items
 656                 $loglist = new LogEventsList( $context, $linkRenderer, $flags );
 657                 $pager = new LogPager( $loglist, $types, $user, $page, '', $conds );
 658                 if ( !$useRequestParams ) {
 659                         # Reset vars that may have been taken from the request
 660                         $pager->mLimit = 50;
 661                         $pager->mDefaultLimit = 50;
 662                         $pager->mOffset = "";
 663                         $pager->mIsBackwards = false;
 664                 }
 665
 666                 if ( $param['useMaster'] ) {
 667                         $pager->mDb = wfGetDB( DB_MASTER );
 668                 }
 669                 if ( isset( $param['offset'] ) ) { # Tell pager to ignore WebRequest offset
 670                         $pager->setOffset( $param['offset'] );
 671                 }
 672
 673                 if ( $lim > 0 ) {
 674                         $pager->mLimit = $lim;
 675                 }
 676                 // Fetch the log rows and build the HTML if needed
 677                 $logBody = $pager->getBody();
 678                 $numRows = $pager->getNumRows();
 679
 680                 $s = '';
 681
 682                 if ( $logBody ) {
 683                         if ( $msgKey[0] ) {
 684                                 $dir = $context->getLanguage()->getDir();
 685                                 $lang = $context->getLanguage()->getHtmlCode();
 686
 687                                 $s = Xml::openElement( 'div', [
 688                                         'class' => "mw-warning-with-logexcerpt mw-content-$dir",
 689                                         'dir' => $dir,
 690                                         'lang' => $lang,
 691                                 ] );
 692
 693                                 if ( count( $msgKey ) == 1 ) {
 694                                         $s .= $context->msg( $msgKey[0] )->parseAsBlock();
 695                                 } else { // Process additional arguments
 696                                         $args = $msgKey;
 697                                         array_shift( $args );
 698                                         $s .= $context->msg( $msgKey[0], $args )->parseAsBlock();
 699                                 }
 700                         }
 701                         $s .= $loglist->beginLogEventsList() .
 702                                 $logBody .
 703                                 $loglist->endLogEventsList();
 704                         // add styles for change tags
 705                         $context->getOutput()->addModuleStyles( 'mediawiki.interface.helpers.styles' );
 706                 } elseif ( $showIfEmpty ) {
 707                         $s = Html::rawElement( 'div', [ 'class' => 'mw-warning-logempty' ],
 708                                 $context->msg( 'logempty' )->parse() );
 709                 }
 710
 711                 if ( $numRows > $pager->mLimit ) { # Show "Full log" link
 712                         $urlParam = [];
 713                         if ( $page instanceof Title ) {
 714                                 $urlParam['page'] = $page->getPrefixedDBkey();
 715                         } elseif ( $page != '' ) {
 716                                 $urlParam['page'] = $page;
 717                         }
 718
 719                         if ( $user != '' ) {
 720                                 $urlParam['user'] = $user;
 721                         }
 722
 723                         if ( !is_array( $types ) ) { # Make it an array, if it isn't
 724                                 $types = [ $types ];
 725                         }
 726
 727                         # If there is exactly one log type, we can link to Special:Log?type=foo
 728                         if ( count( $types ) == 1 ) {
 729                                 $urlParam['type'] = $types[0];
 730                         }
 731
 732                         if ( $extraUrlParams !== false ) {
 733                                 $urlParam = array_merge( $urlParam, $extraUrlParams );
 734                         }
 735
 736                         $s .= $linkRenderer->makeKnownLink(
 737                                 SpecialPage::getTitleFor( 'Log' ),
 738                                 $context->msg( 'log-fulllog' )->text(),
 739                                 [],
 740                                 $urlParam
 741                         );
 742                 }
 743
 744                 if ( $logBody && $msgKey[0] ) {
 745                         $s .= '</div>';
 746                 }
 747
 748                 if ( $wrap != '' ) { // Wrap message in html
 749                         $s = str_replace( '$1', $s, $wrap );
 750                 }
 751
 752                 /* hook can return false, if we don't want the message to be emitted (Wikia BugId:7093) */
 753                 if ( Hooks::run( 'LogEventsListShowLogExtract', [ &$s, $types, $page, $user, $param ] ) ) {
 754                         // $out can be either an OutputPage object or a String-by-reference
 755                         if ( $out instanceof OutputPage ) {
 756                                 $out->addHTML( $s );
 757                         } else {
 758                                 $out = $s;
 759                         }
 760                 }
 761
 762                 return $numRows;
 763         }
 764
 765         /**
 766          * SQL clause to skip forbidden log types for this user
 767          *
 768          * @param IDatabase $db
 769          * @param string $audience Public/user
 770          * @param User|null $user User to check, or null to use $wgUser
 771          * @return string|bool String on success, false on failure.
 772          */
 773         public static function getExcludeClause( $db, $audience = 'public', User $user = null ) {
 774                 global $wgLogRestrictions;
 775
 776                 if ( $audience != 'public' && $user === null ) {
 777                         global $wgUser;
 778                         $user = $wgUser;
 779                 }
 780
 781                 // Reset the array, clears extra "where" clauses when $par is used
 782                 $hiddenLogs = [];
 783
 784                 // Don't show private logs to unprivileged users
 785                 foreach ( $wgLogRestrictions as $logType => $right ) {
 786                         if ( $audience == 'public' || !$user->isAllowed( $right ) ) {
 787                                 $hiddenLogs[] = $logType;
 788                         }
 789                 }
 790                 if ( count( $hiddenLogs ) == 1 ) {
 791                         return 'log_type != ' . $db->addQuotes( $hiddenLogs[0] );
 792                 } elseif ( $hiddenLogs ) {
 793                         return 'log_type NOT IN (' . $db->makeList( $hiddenLogs ) . ')';
 794                 }
 795
 796                 return false;
 797         }
 798 }