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<?php
/**
* Module to fetch tokens via action=query&meta=tokens
*
* Copyright © 2014 Wikimedia Foundation and contributors
*
* 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
* @since 1.24
*/
/**
* Module to fetch tokens via action=query&meta=tokens
*
* @ingroup API
* @since 1.24
*/
class ApiQueryTokens extends ApiQueryBase {
public function execute() {
$params = $this->extractRequestParams();
$res = [
ApiResult::META_TYPE => 'assoc',
];
if ( $this->lacksSameOriginSecurity() ) {
$this->addWarning( [ 'apiwarn-tokens-origin' ] );
return;
}
$user = $this->getUser();
$session = $this->getRequest()->getSession();
$salts = self::getTokenTypeSalts();
foreach ( $params['type'] as $type ) {
$res[$type . 'token'] = self::getToken( $user, $session, $salts[$type] )->toString();
}
$this->getResult()->addValue( 'query', $this->getModuleName(), $res );
}
/**
* Get the salts for known token types
* @return (string|array)[] Returning a string will use that as the salt
* for User::getEditTokenObject() to fetch the token, which will give a
* LoggedOutEditToken (always "+\\") for anonymous users. Returning an
* array will use it as parameters to MediaWiki\Session\Session::getToken(),
* which will always return a full token even for anonymous users.
*/
public static function getTokenTypeSalts() {
static $salts = null;
if ( !$salts ) {
$salts = [
'csrf' => '',
'watch' => 'watch',
'patrol' => 'patrol',
'rollback' => 'rollback',
'userrights' => 'userrights',
'login' => [ '', 'login' ],
'createaccount' => [ '', 'createaccount' ],
];
Hooks::run( 'ApiQueryTokensRegisterTypes', [ &$salts ] );
ksort( $salts );
}
return $salts;
}
/**
* Get a token from a salt
* @param User $user
* @param MediaWiki\Session\Session $session
* @param string|array $salt A string will be used as the salt for
* User::getEditTokenObject() to fetch the token, which will give a
* LoggedOutEditToken (always "+\\") for anonymous users. An array will
* be used as parameters to MediaWiki\Session\Session::getToken(), which
* will always return a full token even for anonymous users. An array will
* also persist the session.
* @return MediaWiki\Session\Token
*/
public static function getToken( User $user, MediaWiki\Session\Session $session, $salt ) {
if ( is_array( $salt ) ) {
$session->persist();
return call_user_func_array( [ $session, 'getToken' ], $salt );
} else {
return $user->getEditTokenObject( $salt, $session->getRequest() );
}
}
public function getAllowedParams() {
return [
'type' => [
ApiBase::PARAM_DFLT => 'csrf',
ApiBase::PARAM_ISMULTI => true,
ApiBase::PARAM_TYPE => array_keys( self::getTokenTypeSalts() ),
],
];
}
protected function getExamplesMessages() {
return [
'action=query&meta=tokens'
=> 'apihelp-query+tokens-example-simple',
'action=query&meta=tokens&type=watch|patrol'
=> 'apihelp-query+tokens-example-types',
];
}
public function isReadMode() {
// So login tokens can be fetched on private wikis
return false;
}
public function getCacheMode( $params ) {
return 'private';
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Tokens';
}
}
|
