includes/api/ApiQueryFilearchive.php

   1 <?php
   2 /**
   3  * API for MediaWiki 1.12+
   4  *
   5  * Copyright © 2010 Sam Reed
   6  * Copyright © 2008 Vasiliev Victor vasilvv@gmail.com,
   7  * based on ApiQueryAllPages.php
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  */
  26
  27 use MediaWiki\Revision\RevisionRecord;
  28
  29 /**
  30  * Query module to enumerate all deleted files.
  31  *
  32  * @ingroup API
  33  */
  34 class ApiQueryFilearchive extends ApiQueryBase {
  35
  36         public function __construct( ApiQuery $query, $moduleName ) {
  37                 parent::__construct( $query, $moduleName, 'fa' );
  38         }
  39
  40         public function execute() {
  41                 $user = $this->getUser();
  42                 $db = $this->getDB();
  43                 $commentStore = CommentStore::getStore();
  44
  45                 $params = $this->extractRequestParams();
  46
  47                 $prop = array_flip( $params['prop'] );
  48                 $fld_sha1 = isset( $prop['sha1'] );
  49                 $fld_timestamp = isset( $prop['timestamp'] );
  50                 $fld_user = isset( $prop['user'] );
  51                 $fld_size = isset( $prop['size'] );
  52                 $fld_dimensions = isset( $prop['dimensions'] );
  53                 $fld_description = isset( $prop['description'] ) || isset( $prop['parseddescription'] );
  54                 $fld_mime = isset( $prop['mime'] );
  55                 $fld_mediatype = isset( $prop['mediatype'] );
  56                 $fld_metadata = isset( $prop['metadata'] );
  57                 $fld_bitdepth = isset( $prop['bitdepth'] );
  58                 $fld_archivename = isset( $prop['archivename'] );
  59
  60                 if ( $fld_description &&
  61                         !$this->getPermissionManager()->userHasRight( $user, 'deletedhistory' )
  62                 ) {
  63                         $this->dieWithError( 'apierror-cantview-deleted-description', 'permissiondenied' );
  64                 }
  65                 if ( $fld_metadata &&
  66                         !$this->getPermissionManager()->userHasAnyRight( $user, 'deletedtext', 'undelete' )
  67                 ) {
  68                         $this->dieWithError( 'apierror-cantview-deleted-metadata', 'permissiondenied' );
  69                 }
  70
  71                 $fileQuery = ArchivedFile::getQueryInfo();
  72                 $this->addTables( $fileQuery['tables'] );
  73                 $this->addFields( $fileQuery['fields'] );
  74                 $this->addJoinConds( $fileQuery['joins'] );
  75
  76                 if ( !is_null( $params['continue'] ) ) {
  77                         $cont = explode( '|', $params['continue'] );
  78                         $this->dieContinueUsageIf( count( $cont ) != 3 );
  79                         $op = $params['dir'] == 'descending' ? '<' : '>';
  80                         $cont_from = $db->addQuotes( $cont[0] );
  81                         $cont_timestamp = $db->addQuotes( $db->timestamp( $cont[1] ) );
  82                         $cont_id = (int)$cont[2];
  83                         $this->dieContinueUsageIf( $cont[2] !== (string)$cont_id );
  84                         $this->addWhere( "fa_name $op $cont_from OR " .
  85                                 "(fa_name = $cont_from AND " .
  86                                 "(fa_timestamp $op $cont_timestamp OR " .
  87                                 "(fa_timestamp = $cont_timestamp AND " .
  88                                 "fa_id $op= $cont_id )))"
  89                         );
  90                 }
  91
  92                 // Image filters
  93                 $dir = ( $params['dir'] == 'descending' ? 'older' : 'newer' );
  94                 $from = ( $params['from'] === null ? null : $this->titlePartToKey( $params['from'], NS_FILE ) );
  95                 $to = ( $params['to'] === null ? null : $this->titlePartToKey( $params['to'], NS_FILE ) );
  96                 $this->addWhereRange( 'fa_name', $dir, $from, $to );
  97                 if ( isset( $params['prefix'] ) ) {
  98                         $this->addWhere( 'fa_name' . $db->buildLike(
  99                                 $this->titlePartToKey( $params['prefix'], NS_FILE ),
 100                                 $db->anyString() ) );
 101                 }
 102
 103                 $sha1Set = isset( $params['sha1'] );
 104                 $sha1base36Set = isset( $params['sha1base36'] );
 105                 if ( $sha1Set || $sha1base36Set ) {
 106                         $sha1 = false;
 107                         if ( $sha1Set ) {
 108                                 $sha1 = strtolower( $params['sha1'] );
 109                                 if ( !$this->validateSha1Hash( $sha1 ) ) {
 110                                         $this->dieWithError( 'apierror-invalidsha1hash' );
 111                                 }
 112                                 $sha1 = Wikimedia\base_convert( $sha1, 16, 36, 31 );
 113                         } elseif ( $sha1base36Set ) {
 114                                 $sha1 = strtolower( $params['sha1base36'] );
 115                                 if ( !$this->validateSha1Base36Hash( $sha1 ) ) {
 116                                         $this->dieWithError( 'apierror-invalidsha1base36hash' );
 117                                 }
 118                         }
 119                         if ( $sha1 ) {
 120                                 $this->addWhereFld( 'fa_sha1', $sha1 );
 121                                 // Paranoia: avoid brute force searches (T19342)
 122                                 if ( !$this->getPermissionManager()->userHasRight( $user, 'deletedtext' ) ) {
 123                                         $bitmask = File::DELETED_FILE;
 124                                 } elseif ( !$this->getPermissionManager()
 125                                         ->userHasAnyRight( $user, 'suppressrevision', 'viewsuppressed' )
 126                                 ) {
 127                                         $bitmask = File::DELETED_FILE | File::DELETED_RESTRICTED;
 128                                 } else {
 129                                         $bitmask = 0;
 130                                 }
 131                                 if ( $bitmask ) {
 132                                         $this->addWhere( $this->getDB()->bitAnd( 'fa_deleted', $bitmask ) . " != $bitmask" );
 133                                 }
 134                         }
 135                 }
 136
 137                 $limit = $params['limit'];
 138                 $this->addOption( 'LIMIT', $limit + 1 );
 139                 $sort = ( $params['dir'] == 'descending' ? ' DESC' : '' );
 140                 $this->addOption( 'ORDER BY', [
 141                         'fa_name' . $sort,
 142                         'fa_timestamp' . $sort,
 143                         'fa_id' . $sort,
 144                 ] );
 145
 146                 $res = $this->select( __METHOD__ );
 147
 148                 $count = 0;
 149                 $result = $this->getResult();
 150                 foreach ( $res as $row ) {
 151                         if ( ++$count > $limit ) {
 152                                 // We've reached the one extra which shows that there are
 153                                 // additional pages to be had. Stop here...
 154                                 $this->setContinueEnumParameter(
 155                                         'continue', "$row->fa_name|$row->fa_timestamp|$row->fa_id"
 156                                 );
 157                                 break;
 158                         }
 159
 160                         $canViewFile = RevisionRecord::userCanBitfield( $row->fa_deleted, File::DELETED_FILE, $user );
 161
 162                         $file = [];
 163                         $file['id'] = (int)$row->fa_id;
 164                         $file['name'] = $row->fa_name;
 165                         $title = Title::makeTitle( NS_FILE, $row->fa_name );
 166                         self::addTitleInfo( $file, $title );
 167
 168                         if ( $fld_description &&
 169                                 RevisionRecord::userCanBitfield( $row->fa_deleted, File::DELETED_COMMENT, $user )
 170                         ) {
 171                                 $file['description'] = $commentStore->getComment( 'fa_description', $row )->text;
 172                                 if ( isset( $prop['parseddescription'] ) ) {
 173                                         $file['parseddescription'] = Linker::formatComment(
 174                                                 $file['description'], $title );
 175                                 }
 176                         }
 177                         if ( $fld_user &&
 178                                 RevisionRecord::userCanBitfield( $row->fa_deleted, File::DELETED_USER, $user )
 179                         ) {
 180                                 $file['userid'] = (int)$row->fa_user;
 181                                 $file['user'] = $row->fa_user_text;
 182                         }
 183                         if ( $fld_sha1 && $canViewFile ) {
 184                                 $file['sha1'] = Wikimedia\base_convert( $row->fa_sha1, 36, 16, 40 );
 185                         }
 186                         if ( $fld_timestamp ) {
 187                                 $file['timestamp'] = wfTimestamp( TS_ISO_8601, $row->fa_timestamp );
 188                         }
 189                         if ( ( $fld_size || $fld_dimensions ) && $canViewFile ) {
 190                                 $file['size'] = $row->fa_size;
 191
 192                                 $pageCount = ArchivedFile::newFromRow( $row )->pageCount();
 193                                 if ( $pageCount !== false ) {
 194                                         $file['pagecount'] = $pageCount;
 195                                 }
 196
 197                                 $file['height'] = $row->fa_height;
 198                                 $file['width'] = $row->fa_width;
 199                         }
 200                         if ( $fld_mediatype && $canViewFile ) {
 201                                 $file['mediatype'] = $row->fa_media_type;
 202                         }
 203                         if ( $fld_metadata && $canViewFile ) {
 204                                 $file['metadata'] = $row->fa_metadata
 205                                         ? ApiQueryImageInfo::processMetaData( unserialize( $row->fa_metadata ), $result )
 206                                         : null;
 207                         }
 208                         if ( $fld_bitdepth && $canViewFile ) {
 209                                 $file['bitdepth'] = $row->fa_bits;
 210                         }
 211                         if ( $fld_mime && $canViewFile ) {
 212                                 $file['mime'] = "$row->fa_major_mime/$row->fa_minor_mime";
 213                         }
 214                         if ( $fld_archivename && !is_null( $row->fa_archive_name ) ) {
 215                                 $file['archivename'] = $row->fa_archive_name;
 216                         }
 217
 218                         if ( $row->fa_deleted & File::DELETED_FILE ) {
 219                                 $file['filehidden'] = true;
 220                         }
 221                         if ( $row->fa_deleted & File::DELETED_COMMENT ) {
 222                                 $file['commenthidden'] = true;
 223                         }
 224                         if ( $row->fa_deleted & File::DELETED_USER ) {
 225                                 $file['userhidden'] = true;
 226                         }
 227                         if ( $row->fa_deleted & File::DELETED_RESTRICTED ) {
 228                                 // This file is deleted for normal admins
 229                                 $file['suppressed'] = true;
 230                         }
 231
 232                         $fit = $result->addValue( [ 'query', $this->getModuleName() ], null, $file );
 233                         if ( !$fit ) {
 234                                 $this->setContinueEnumParameter(
 235                                         'continue', "$row->fa_name|$row->fa_timestamp|$row->fa_id"
 236                                 );
 237                                 break;
 238                         }
 239                 }
 240
 241                 $result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'fa' );
 242         }
 243
 244         public function getAllowedParams() {
 245                 return [
 246                         'from' => null,
 247                         'to' => null,
 248                         'prefix' => null,
 249                         'dir' => [
 250                                 ApiBase::PARAM_DFLT => 'ascending',
 251                                 ApiBase::PARAM_TYPE => [
 252                                         'ascending',
 253                                         'descending'
 254                                 ]
 255                         ],
 256                         'sha1' => null,
 257                         'sha1base36' => null,
 258                         'prop' => [
 259                                 ApiBase::PARAM_DFLT => 'timestamp',
 260                                 ApiBase::PARAM_ISMULTI => true,
 261                                 ApiBase::PARAM_TYPE => [
 262                                         'sha1',
 263                                         'timestamp',
 264                                         'user',
 265                                         'size',
 266                                         'dimensions',
 267                                         'description',
 268                                         'parseddescription',
 269                                         'mime',
 270                                         'mediatype',
 271                                         'metadata',
 272                                         'bitdepth',
 273                                         'archivename',
 274                                 ],
 275                                 ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
 276                         ],
 277                         'limit' => [
 278                                 ApiBase::PARAM_DFLT => 10,
 279                                 ApiBase::PARAM_TYPE => 'limit',
 280                                 ApiBase::PARAM_MIN => 1,
 281                                 ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
 282                                 ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
 283                         ],
 284                         'continue' => [
 285                                 ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
 286                         ],
 287                 ];
 288         }
 289
 290         protected function getExamplesMessages() {
 291                 return [
 292                         'action=query&list=filearchive'
 293                                 => 'apihelp-query+filearchive-example-simple',
 294                 ];
 295         }
 296
 297         public function getHelpUrls() {
 298                 return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Filearchive';
 299         }
 300 }