252 lines
7.7 KiB
PHP
252 lines
7.7 KiB
PHP
<?php
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/*
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* Created on Sep 25, 2006
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*
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* API for MediaWiki 1.8+
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*
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* Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*/
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if (!defined('MEDIAWIKI')) {
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// Eclipse helper - will be ignored in production
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require_once ('ApiQueryBase.php');
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}
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/**
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* Query module to enumerate all available pages.
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*
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* @addtogroup API
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*/
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class ApiQueryAllpages extends ApiQueryGeneratorBase {
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public function __construct($query, $moduleName) {
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parent :: __construct($query, $moduleName, 'ap');
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}
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public function execute() {
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$this->run();
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}
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public function executeGenerator($resultPageSet) {
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if ($resultPageSet->isResolvingRedirects())
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$this->dieUsage('Use "gapfilterredir=nonredirects" option instead of "redirects" when using allpages as a generator', 'params');
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$this->run($resultPageSet);
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}
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private function run($resultPageSet = null) {
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$db = $this->getDB();
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$params = $this->extractRequestParams();
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// Page filters
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if (!$this->addWhereIf('page_is_redirect = 1', $params['filterredir'] === 'redirects'))
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$this->addWhereIf('page_is_redirect = 0', $params['filterredir'] === 'nonredirects');
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$this->addWhereFld('page_namespace', $params['namespace']);
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$dir = ($params['dir'] == 'descending' ? 'older' : 'newer');
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$from = (is_null($params['from']) ? null : ApiQueryBase::titleToKey($params['from']));
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$this->addWhereRange('page_title', $dir, $from, null);
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if (isset ($params['prefix']))
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$this->addWhere("page_title LIKE '" . $db->escapeLike(ApiQueryBase :: titleToKey($params['prefix'])) . "%'");
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$forceNameTitleIndex = true;
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if (isset ($params['minsize'])) {
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$this->addWhere('page_len>=' . intval($params['minsize']));
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$forceNameTitleIndex = false;
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}
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if (isset ($params['maxsize'])) {
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$this->addWhere('page_len<=' . intval($params['maxsize']));
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$forceNameTitleIndex = false;
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}
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// Page protection filtering
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if (isset ($params['prtype'])) {
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$this->addTables('page_restrictions');
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$this->addWhere('page_id=pr_page');
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$this->addWhere('pr_expiry>' . $db->addQuotes($db->timestamp()));
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$this->addWhereFld('pr_type', $params['prtype']);
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$prlevel = $params['prlevel'];
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if (!is_null($prlevel) && $prlevel != '' && $prlevel != '*')
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$this->addWhereFld('pr_level', $prlevel);
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$this->addOption('DISTINCT');
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$forceNameTitleIndex = false;
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} else if (isset ($params['prlevel'])) {
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$this->dieUsage('prlevel may not be used without prtype', 'params');
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}
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if($params['filterlanglinks'] == 'withoutlanglinks') {
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$pageName = $this->getDB()->tableName('page');
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$llName = $this->getDB()->tableName('langlinks');
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$tables = "$pageName LEFT JOIN $llName ON page_id=ll_from";
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$this->addWhere('ll_from IS NULL');
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$this->addTables($tables);
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$forceNameTitleIndex = false;
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} else if($params['filterlanglinks'] == 'withlanglinks') {
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$this->addTables(array('page', 'langlinks'));
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$this->addWhere('page_id=ll_from');
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$forceNameTitleIndex = false;
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} else {
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$this->addTables('page');
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}
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if ($forceNameTitleIndex)
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$this->addOption('USE INDEX', 'name_title');
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if (is_null($resultPageSet)) {
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$this->addFields(array (
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'page_id',
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'page_namespace',
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'page_title'
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));
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} else {
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$this->addFields($resultPageSet->getPageTableFields());
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}
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$limit = $params['limit'];
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$this->addOption('LIMIT', $limit+1);
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$res = $this->select(__METHOD__);
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$data = array ();
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$count = 0;
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while ($row = $db->fetchObject($res)) {
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if (++ $count > $limit) {
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// We've reached the one extra which shows that there are additional pages to be had. Stop here...
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// TODO: Security issue - if the user has no right to view next title, it will still be shown
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$this->setContinueEnumParameter('from', ApiQueryBase :: keyToTitle($row->page_title));
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break;
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}
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if (is_null($resultPageSet)) {
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$title = Title :: makeTitle($row->page_namespace, $row->page_title);
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$data[] = array(
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'pageid' => intval($row->page_id),
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'ns' => intval($title->getNamespace()),
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'title' => $title->getPrefixedText());
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} else {
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$resultPageSet->processDbRow($row);
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}
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}
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$db->freeResult($res);
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if (is_null($resultPageSet)) {
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$result = $this->getResult();
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$result->setIndexedTagName($data, 'p');
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$result->addValue('query', $this->getModuleName(), $data);
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}
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}
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public function getAllowedParams() {
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global $wgRestrictionTypes, $wgRestrictionLevels;
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return array (
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'from' => null,
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'prefix' => null,
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'namespace' => array (
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ApiBase :: PARAM_DFLT => 0,
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ApiBase :: PARAM_TYPE => 'namespace',
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),
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'filterredir' => array (
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ApiBase :: PARAM_DFLT => 'all',
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ApiBase :: PARAM_TYPE => array (
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'all',
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'redirects',
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'nonredirects'
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)
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),
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'minsize' => array (
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ApiBase :: PARAM_TYPE => 'integer',
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),
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'maxsize' => array (
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ApiBase :: PARAM_TYPE => 'integer',
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),
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'prtype' => array (
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ApiBase :: PARAM_TYPE => $wgRestrictionTypes,
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ApiBase :: PARAM_ISMULTI => true
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),
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'prlevel' => array (
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ApiBase :: PARAM_TYPE => $wgRestrictionLevels,
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ApiBase :: PARAM_ISMULTI => true
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),
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'limit' => array (
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ApiBase :: PARAM_DFLT => 10,
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ApiBase :: PARAM_TYPE => 'limit',
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ApiBase :: PARAM_MIN => 1,
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ApiBase :: PARAM_MAX => ApiBase :: LIMIT_BIG1,
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ApiBase :: PARAM_MAX2 => ApiBase :: LIMIT_BIG2
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),
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'dir' => array (
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ApiBase :: PARAM_DFLT => 'ascending',
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ApiBase :: PARAM_TYPE => array (
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'ascending',
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'descending'
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)
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),
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'filterlanglinks' => array(
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ApiBase :: PARAM_TYPE => array(
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'withlanglinks',
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'withoutlanglinks',
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'all'
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),
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ApiBase :: PARAM_DFLT => 'all'
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)
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);
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}
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public function getParamDescription() {
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return array (
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'from' => 'The page title to start enumerating from.',
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'prefix' => 'Search for all page titles that begin with this value.',
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'namespace' => 'The namespace to enumerate.',
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'filterredir' => 'Which pages to list.',
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'dir' => 'The direction in which to list',
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'minsize' => 'Limit to pages with at least this many bytes',
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'maxsize' => 'Limit to pages with at most this many bytes',
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'prtype' => 'Limit to protected pages only',
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'prlevel' => 'The protection level (must be used with apprtype= parameter)',
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'filterlanglinks' => 'Filter based on whether a page has langlinks',
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'limit' => 'How many total pages to return.'
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);
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}
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public function getDescription() {
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return 'Enumerate all pages sequentially in a given namespace';
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}
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protected function getExamples() {
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return array (
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'Simple Use',
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' Show a list of pages starting at the letter "B"',
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' api.php?action=query&list=allpages&apfrom=B',
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'Using as Generator',
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' Show info about 4 pages starting at the letter "T"',
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' api.php?action=query&generator=allpages&gaplimit=4&gapfrom=T&prop=info',
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' Show content of first 2 non-redirect pages begining at "Re"',
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' api.php?action=query&generator=allpages&gaplimit=2&gapfilterredir=nonredirects&gapfrom=Re&prop=revisions&rvprop=content'
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);
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}
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public function getVersion() {
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return __CLASS__ . ': $Id$';
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}
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}
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