wiki.techinc.nl/includes/api/ApiQueryAllImages.php
Brad Jorsch 27c61fb1e9 Add actor table and code to start using it
Storing the user name or IP in every row in large tables like revision
and logging takes up space and makes operations on these tables slower.
This patch begins the process of moving those into one "actor" table
which other tables can reference with a single integer field.

A subsequent patch will remove the old columns.

Bug: T167246
Depends-On: I9293fd6e0f958d87e52965de925046f1bb8f8a50
Change-Id: I8d825eb02c69cc66d90bd41325133fd3f99f0226
2018-02-23 10:06:20 -08:00

424 lines
12 KiB
PHP

<?php
/**
* API for MediaWiki 1.12+
*
* Copyright © 2008 Vasiliev Victor vasilvv@gmail.com,
* based on ApiQueryAllPages.php
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
use Wikimedia\Rdbms\IDatabase;
/**
* Query module to enumerate all available pages.
*
* @ingroup API
*/
class ApiQueryAllImages extends ApiQueryGeneratorBase {
protected $mRepo;
public function __construct( ApiQuery $query, $moduleName ) {
parent::__construct( $query, $moduleName, 'ai' );
$this->mRepo = RepoGroup::singleton()->getLocalRepo();
}
/**
* Override parent method to make sure the repo's DB is used
* which may not necessarily be the same as the local DB.
*
* TODO: allow querying non-local repos.
* @return IDatabase
*/
protected function getDB() {
return $this->mRepo->getReplicaDB();
}
public function execute() {
$this->run();
}
public function getCacheMode( $params ) {
return 'public';
}
/**
* @param ApiPageSet $resultPageSet
* @return void
*/
public function executeGenerator( $resultPageSet ) {
if ( $resultPageSet->isResolvingRedirects() ) {
$this->dieWithError( 'apierror-allimages-redirect', 'invalidparammix' );
}
$this->run( $resultPageSet );
}
/**
* @param ApiPageSet $resultPageSet
* @return void
*/
private function run( $resultPageSet = null ) {
$repo = $this->mRepo;
if ( !$repo instanceof LocalRepo ) {
$this->dieWithError( 'apierror-unsupportedrepo' );
}
$prefix = $this->getModulePrefix();
$db = $this->getDB();
$params = $this->extractRequestParams();
// Table and return fields
$prop = array_flip( $params['prop'] );
$fileQuery = LocalFile::getQueryInfo();
$this->addTables( $fileQuery['tables'] );
$this->addFields( $fileQuery['fields'] );
$this->addJoinConds( $fileQuery['joins'] );
$ascendingOrder = true;
if ( $params['dir'] == 'descending' || $params['dir'] == 'older' ) {
$ascendingOrder = false;
}
if ( $params['sort'] == 'name' ) {
// Check mutually exclusive params
$disallowed = [ 'start', 'end', 'user' ];
foreach ( $disallowed as $pname ) {
if ( isset( $params[$pname] ) ) {
$this->dieWithError(
[
'apierror-invalidparammix-mustusewith',
"{$prefix}{$pname}",
"{$prefix}sort=timestamp"
],
'invalidparammix'
);
}
}
if ( $params['filterbots'] != 'all' ) {
$this->dieWithError(
[
'apierror-invalidparammix-mustusewith',
"{$prefix}filterbots",
"{$prefix}sort=timestamp"
],
'invalidparammix'
);
}
// Pagination
if ( !is_null( $params['continue'] ) ) {
$cont = explode( '|', $params['continue'] );
$this->dieContinueUsageIf( count( $cont ) != 1 );
$op = ( $ascendingOrder ? '>' : '<' );
$continueFrom = $db->addQuotes( $cont[0] );
$this->addWhere( "img_name $op= $continueFrom" );
}
// Image filters
$from = ( $params['from'] === null ? null : $this->titlePartToKey( $params['from'], NS_FILE ) );
$to = ( $params['to'] === null ? null : $this->titlePartToKey( $params['to'], NS_FILE ) );
$this->addWhereRange( 'img_name', ( $ascendingOrder ? 'newer' : 'older' ), $from, $to );
if ( isset( $params['prefix'] ) ) {
$this->addWhere( 'img_name' . $db->buildLike(
$this->titlePartToKey( $params['prefix'], NS_FILE ),
$db->anyString() ) );
}
} else {
// Check mutually exclusive params
$disallowed = [ 'from', 'to', 'prefix' ];
foreach ( $disallowed as $pname ) {
if ( isset( $params[$pname] ) ) {
$this->dieWithError(
[
'apierror-invalidparammix-mustusewith',
"{$prefix}{$pname}",
"{$prefix}sort=name"
],
'invalidparammix'
);
}
}
if ( !is_null( $params['user'] ) && $params['filterbots'] != 'all' ) {
// Since filterbots checks if each user has the bot right, it
// doesn't make sense to use it with user
$this->dieWithError(
[ 'apierror-invalidparammix-cannotusewith', "{$prefix}user", "{$prefix}filterbots" ]
);
}
// Pagination
$this->addTimestampWhereRange(
'img_timestamp',
$ascendingOrder ? 'newer' : 'older',
$params['start'],
$params['end']
);
// Include in ORDER BY for uniqueness
$this->addWhereRange( 'img_name', $ascendingOrder ? 'newer' : 'older', null, null );
if ( !is_null( $params['continue'] ) ) {
$cont = explode( '|', $params['continue'] );
$this->dieContinueUsageIf( count( $cont ) != 2 );
$op = ( $ascendingOrder ? '>' : '<' );
$continueTimestamp = $db->addQuotes( $db->timestamp( $cont[0] ) );
$continueName = $db->addQuotes( $cont[1] );
$this->addWhere( "img_timestamp $op $continueTimestamp OR " .
"(img_timestamp = $continueTimestamp AND " .
"img_name $op= $continueName)"
);
}
// Image filters
if ( !is_null( $params['user'] ) ) {
$actorQuery = ActorMigration::newMigration()
->getWhere( $db, 'img_user', User::newFromName( $params['user'], false ) );
$this->addTables( $actorQuery['tables'] );
$this->addJoinConds( $actorQuery['joins'] );
$this->addWhere( $actorQuery['conds'] );
}
if ( $params['filterbots'] != 'all' ) {
$actorQuery = ActorMigration::newMigration()->getJoin( 'img_user' );
$this->addTables( $actorQuery['tables'] );
$this->addTables( 'user_groups' );
$this->addJoinConds( $actorQuery['joins'] );
$this->addJoinConds( [ 'user_groups' => [
'LEFT JOIN',
[
'ug_group' => User::getGroupsWithPermission( 'bot' ),
'ug_user = ' . $actorQuery['fields']['img_user'],
'ug_expiry IS NULL OR ug_expiry >= ' . $db->addQuotes( $db->timestamp() )
]
] ] );
$groupCond = ( $params['filterbots'] == 'nobots' ? 'NULL' : 'NOT NULL' );
$this->addWhere( "ug_group IS $groupCond" );
}
}
// Filters not depending on sort
if ( isset( $params['minsize'] ) ) {
$this->addWhere( 'img_size>=' . intval( $params['minsize'] ) );
}
if ( isset( $params['maxsize'] ) ) {
$this->addWhere( 'img_size<=' . intval( $params['maxsize'] ) );
}
$sha1 = false;
if ( isset( $params['sha1'] ) ) {
$sha1 = strtolower( $params['sha1'] );
if ( !$this->validateSha1Hash( $sha1 ) ) {
$this->dieWithError( 'apierror-invalidsha1hash' );
}
$sha1 = Wikimedia\base_convert( $sha1, 16, 36, 31 );
} elseif ( isset( $params['sha1base36'] ) ) {
$sha1 = strtolower( $params['sha1base36'] );
if ( !$this->validateSha1Base36Hash( $sha1 ) ) {
$this->dieWithError( 'apierror-invalidsha1base36hash' );
}
}
if ( $sha1 ) {
$this->addWhereFld( 'img_sha1', $sha1 );
}
if ( !is_null( $params['mime'] ) ) {
if ( $this->getConfig()->get( 'MiserMode' ) ) {
$this->dieWithError( 'apierror-mimesearchdisabled' );
}
$mimeConds = [];
foreach ( $params['mime'] as $mime ) {
list( $major, $minor ) = File::splitMime( $mime );
$mimeConds[] = $db->makeList(
[
'img_major_mime' => $major,
'img_minor_mime' => $minor,
],
LIST_AND
);
}
// safeguard against internal_api_error_DBQueryError
if ( count( $mimeConds ) > 0 ) {
$this->addWhere( $db->makeList( $mimeConds, LIST_OR ) );
} else {
// no MIME types, no files
$this->getResult()->addValue( 'query', $this->getModuleName(), [] );
return;
}
}
$limit = $params['limit'];
$this->addOption( 'LIMIT', $limit + 1 );
$sortFlag = '';
if ( !$ascendingOrder ) {
$sortFlag = ' DESC';
}
if ( $params['sort'] == 'timestamp' ) {
$this->addOption( 'ORDER BY', 'img_timestamp' . $sortFlag );
} else {
$this->addOption( 'ORDER BY', 'img_name' . $sortFlag );
}
$res = $this->select( __METHOD__ );
$titles = [];
$count = 0;
$result = $this->getResult();
foreach ( $res as $row ) {
if ( ++$count > $limit ) {
// We've reached the one extra which shows that there are
// additional pages to be had. Stop here...
if ( $params['sort'] == 'name' ) {
$this->setContinueEnumParameter( 'continue', $row->img_name );
} else {
$this->setContinueEnumParameter( 'continue', "$row->img_timestamp|$row->img_name" );
}
break;
}
if ( is_null( $resultPageSet ) ) {
$file = $repo->newFileFromRow( $row );
$info = array_merge( [ 'name' => $row->img_name ],
ApiQueryImageInfo::getInfo( $file, $prop, $result ) );
self::addTitleInfo( $info, $file->getTitle() );
$fit = $result->addValue( [ 'query', $this->getModuleName() ], null, $info );
if ( !$fit ) {
if ( $params['sort'] == 'name' ) {
$this->setContinueEnumParameter( 'continue', $row->img_name );
} else {
$this->setContinueEnumParameter( 'continue', "$row->img_timestamp|$row->img_name" );
}
break;
}
} else {
$titles[] = Title::makeTitle( NS_FILE, $row->img_name );
}
}
if ( is_null( $resultPageSet ) ) {
$result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'img' );
} else {
$resultPageSet->populateFromTitles( $titles );
}
}
public function getAllowedParams() {
$ret = [
'sort' => [
ApiBase::PARAM_DFLT => 'name',
ApiBase::PARAM_TYPE => [
'name',
'timestamp'
]
],
'dir' => [
ApiBase::PARAM_DFLT => 'ascending',
ApiBase::PARAM_TYPE => [
// sort=name
'ascending',
'descending',
// sort=timestamp
'newer',
'older'
]
],
'from' => null,
'to' => null,
'continue' => [
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
],
'start' => [
ApiBase::PARAM_TYPE => 'timestamp'
],
'end' => [
ApiBase::PARAM_TYPE => 'timestamp'
],
'prop' => [
ApiBase::PARAM_TYPE => ApiQueryImageInfo::getPropertyNames( $this->propertyFilter ),
ApiBase::PARAM_DFLT => 'timestamp|url',
ApiBase::PARAM_ISMULTI => true,
ApiBase::PARAM_HELP_MSG => 'apihelp-query+imageinfo-param-prop',
ApiBase::PARAM_HELP_MSG_PER_VALUE =>
ApiQueryImageInfo::getPropertyMessages( $this->propertyFilter ),
],
'prefix' => null,
'minsize' => [
ApiBase::PARAM_TYPE => 'integer',
],
'maxsize' => [
ApiBase::PARAM_TYPE => 'integer',
],
'sha1' => null,
'sha1base36' => null,
'user' => [
ApiBase::PARAM_TYPE => 'user'
],
'filterbots' => [
ApiBase::PARAM_DFLT => 'all',
ApiBase::PARAM_TYPE => [
'all',
'bots',
'nobots'
]
],
'mime' => [
ApiBase::PARAM_ISMULTI => true,
],
'limit' => [
ApiBase::PARAM_DFLT => 10,
ApiBase::PARAM_TYPE => 'limit',
ApiBase::PARAM_MIN => 1,
ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
],
];
if ( $this->getConfig()->get( 'MiserMode' ) ) {
$ret['mime'][ApiBase::PARAM_HELP_MSG] = 'api-help-param-disabled-in-miser-mode';
}
return $ret;
}
private $propertyFilter = [ 'archivename', 'thumbmime', 'uploadwarning' ];
protected function getExamplesMessages() {
return [
'action=query&list=allimages&aifrom=B'
=> 'apihelp-query+allimages-example-B',
'action=query&list=allimages&aiprop=user|timestamp|url&' .
'aisort=timestamp&aidir=older'
=> 'apihelp-query+allimages-example-recent',
'action=query&list=allimages&aimime=image/png|image/gif'
=> 'apihelp-query+allimages-example-mimetypes',
'action=query&generator=allimages&gailimit=4&' .
'gaifrom=T&prop=imageinfo'
=> 'apihelp-query+allimages-example-generator',
];
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Allimages';
}
}