4 * Created on July 7, 2007
6 * API for MediaWiki 1.8+
8 * Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 * http://www.gnu.org/copyleft/gpl.html
26 if ( !defined( 'MEDIAWIKI' ) ) {
27 // Eclipse helper - will be ignored in production
28 require_once ( 'ApiQueryBase.php' );
34 class ApiQueryExtLinksUsage
extends ApiQueryGeneratorBase
{
36 public function __construct( $query, $moduleName ) {
37 parent
:: __construct( $query, $moduleName, 'eu' );
40 public function execute() {
44 public function executeGenerator( $resultPageSet ) {
45 $this->run( $resultPageSet );
48 private function run( $resultPageSet = null ) {
50 $params = $this->extractRequestParams();
52 $protocol = $params['protocol'];
53 $query = $params['query'];
55 // Find the right prefix
56 global $wgUrlProtocols;
57 if ( $protocol && !in_array( $protocol, $wgUrlProtocols ) )
59 foreach ( $wgUrlProtocols as $p ) {
60 if ( substr( $p, 0, strlen( $protocol ) ) === $protocol ) {
70 $this->addTables( array( 'page', 'externallinks' ) ); // must be in this order for 'USE INDEX'
71 $this->addOption( 'USE INDEX', 'el_index' );
72 $this->addWhere( 'page_id=el_from' );
73 $this->addWhereFld( 'page_namespace', $params['namespace'] );
75 if ( !is_null( $query ) ||
$query != '' )
77 if ( is_null( $protocol ) )
78 $protocol = 'http://';
80 $likeQuery = LinkFilter
::makeLikeArray( $query, $protocol );
82 $this->dieUsage( 'Invalid query', 'bad_query' );
84 $likeQuery = LinkFilter
::keepOneWildcard( $likeQuery );
85 $this->addWhere( 'el_index ' . $db->buildLike( $likeQuery ) );
87 else if ( !is_null( $protocol ) )
88 $this->addWhere( 'el_index ' . $db->buildLike( "$protocol", $db->anyString() ) );
90 $prop = array_flip( $params['prop'] );
91 $fld_ids = isset( $prop['ids'] );
92 $fld_title = isset( $prop['title'] );
93 $fld_url = isset( $prop['url'] );
95 if ( is_null( $resultPageSet ) ) {
96 $this->addFields( array (
101 $this->addFieldsIf( 'el_to', $fld_url );
103 $this->addFields( $resultPageSet->getPageTableFields() );
106 $limit = $params['limit'];
107 $offset = $params['offset'];
108 $this->addOption( 'LIMIT', $limit +
1 );
109 if ( isset ( $offset ) )
110 $this->addOption( 'OFFSET', $offset );
112 $res = $this->select( __METHOD__
);
114 $result = $this->getResult();
116 while ( $row = $db->fetchObject( $res ) ) {
117 if ( ++
$count > $limit ) {
118 // We've reached the one extra which shows that there are additional pages to be had. Stop here...
119 $this->setContinueEnumParameter( 'offset', $offset +
$limit );
123 if ( is_null( $resultPageSet ) ) {
126 $vals['pageid'] = intval( $row->page_id
);
128 $title = Title
:: makeTitle( $row->page_namespace
, $row->page_title
);
129 ApiQueryBase
::addTitleInfo( $vals, $title );
132 $vals['url'] = $row->el_to
;
133 $fit = $result->addValue( array( 'query', $this->getModuleName() ), null, $vals );
136 $this->setContinueEnumParameter( 'offset', $offset +
$count - 1 );
140 $resultPageSet->processDbRow( $row );
143 $db->freeResult( $res );
145 if ( is_null( $resultPageSet ) ) {
146 $result->setIndexedTagName_internal( array( 'query', $this->getModuleName() ),
147 $this->getModulePrefix() );
151 public function getAllowedParams() {
152 global $wgUrlProtocols;
153 $protocols = array( '' );
154 foreach ( $wgUrlProtocols as $p ) {
155 $protocols[] = substr( $p, 0, strpos( $p, ':' ) );
160 ApiBase
:: PARAM_ISMULTI
=> true,
161 ApiBase
:: PARAM_DFLT
=> 'ids|title|url',
162 ApiBase
:: PARAM_TYPE
=> array (
169 ApiBase
:: PARAM_TYPE
=> 'integer'
171 'protocol' => array (
172 ApiBase
:: PARAM_TYPE
=> $protocols,
173 ApiBase
:: PARAM_DFLT
=> '',
176 'namespace' => array (
177 ApiBase
:: PARAM_ISMULTI
=> true,
178 ApiBase
:: PARAM_TYPE
=> 'namespace'
181 ApiBase
:: PARAM_DFLT
=> 10,
182 ApiBase
:: PARAM_TYPE
=> 'limit',
183 ApiBase
:: PARAM_MIN
=> 1,
184 ApiBase
:: PARAM_MAX
=> ApiBase
:: LIMIT_BIG1
,
185 ApiBase
:: PARAM_MAX2
=> ApiBase
:: LIMIT_BIG2
190 public function getParamDescription() {
192 'prop' => 'What pieces of information to include',
193 'offset' => 'Used for paging. Use the value returned for "continue"',
194 'protocol' => array( 'Protocol of the url. If empty and euquery set, the protocol is http.',
195 'Leave both this and euquery empty to list all external links' ),
196 'query' => 'Search string without protocol. See [[Special:LinkSearch]]. Leave empty to list all external links',
197 'namespace' => 'The page namespace(s) to enumerate.',
198 'limit' => 'How many pages to return.'
202 public function getDescription() {
203 return 'Enumerate pages that contain a given URL';
206 public function getPossibleErrors() {
207 return array_merge( parent
::getPossibleErrors(), array(
208 array( 'code' => 'bad_query', 'info' => 'Invalid query' ),
212 protected function getExamples() {
214 'api.php?action=query&list=exturlusage&euquery=www.mediawiki.org'
218 public function getVersion() {
219 return __CLASS__
. ': $Id$';