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<?php
/**
* Expose reference information for a page via prop=references API.
*
* 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
* @see https://www.mediawiki.org/wiki/Extension:Cite#API
*/
class ApiQueryReferences extends ApiQueryBase {
public function __construct( $query, $moduleName ) {
parent::__construct( $query, $moduleName, 'rf' );
}
public function getAllowedParams() {
return [
'continue' => [
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
],
];
}
public function execute() {
$config = ConfigFactory::getDefaultInstance()->makeConfig( 'cite' );
if ( !$config->get( 'CiteStoreReferencesData' ) ) {
$this->dieUsage( 'Cite extension reference storage is not enabled', 'citestoragedisabled' );
}
$params = $this->extractRequestParams();
$titles = $this->getPageSet()->getGoodTitles();
ksort( $titles );
if ( !is_null( $params['continue'] ) ) {
$startId = (int)$params['continue'];
// check it is definitely an int
$this->dieContinueUsageIf( strval( $startId ) !== $params['continue'] );
} else {
$startId = false;
}
foreach ( $titles as $pageId => $title ) {
// Skip until you have the correct starting point
if ( $startId !== false && $startId !== $pageId ) {
continue;
} else {
$startId = false;
}
$storedRefs = Cite::getStoredReferences( $title );
$allReferences = array();
// some pages may not have references stored
if ( $storedRefs !== false ) {
// a page can have multiple <references> tags but they all have unique keys
foreach ( $storedRefs['refs'] as $index => $grouping ) {
foreach ( $grouping as $group => $members ) {
foreach ( $members as $name => $ref ) {
$ref['name'] = $name;
$key = $ref['key'];
if ( is_string( $name ) ) {
$id = Cite::getReferencesKey( $name . '-' . $key );
} else {
$id = Cite::getReferencesKey( $key );
}
$ref['group'] = $group;
$ref['reflist'] = $index;
$allReferences[$id] = $ref;
}
}
}
}
// set some metadata since its an assoc data structure
ApiResult::setArrayType( $allReferences, 'kvp', 'id' );
// Ship a data representation of the combined references.
$fit = $this->addPageSubItems( $pageId, $allReferences );
if ( !$fit ) {
$this->setContinueEnumParameter( 'continue', $pageId );
break;
}
}
}
public function getCacheMode( $params ) {
return 'public';
}
/**
* @see ApiBase::getExamplesMessages()
*/
protected function getExamplesMessages() {
return array(
'action=query&prop=references&titles=Albert%20Einstein' =>
'apihelp-query+references-example-1',
);
}
}
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