]> scripts.mit.edu Git - autoinstalls/mediawiki.git/blobdiff - includes/api/ApiQueryAllpages.php
MediaWiki 1.11.0
[autoinstalls/mediawiki.git] / includes / api / ApiQueryAllpages.php
diff --git a/includes/api/ApiQueryAllpages.php b/includes/api/ApiQueryAllpages.php
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+<?php
+
+/*
+ * Created on Sep 25, 2006
+ *
+ * API for MediaWiki 1.8+
+ *
+ * Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
+ *
+ * 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.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+if (!defined('MEDIAWIKI')) {
+       // Eclipse helper - will be ignored in production
+       require_once ('ApiQueryBase.php');
+}
+
+/**
+ * Query module to enumerate all available pages.
+ * 
+ * @addtogroup API
+ */
+class ApiQueryAllpages extends ApiQueryGeneratorBase {
+
+       public function __construct($query, $moduleName) {
+               parent :: __construct($query, $moduleName, 'ap');
+       }
+
+       public function execute() {
+               $this->run();
+       }
+
+       public function executeGenerator($resultPageSet) {
+               if ($resultPageSet->isResolvingRedirects())
+                       $this->dieUsage('Use "gapfilterredir=nonredirects" option instead of "redirects" when using allpages as a generator', 'params');
+
+               $this->run($resultPageSet);
+       }
+
+       private function run($resultPageSet = null) {
+
+               $db = $this->getDB();
+
+               $params = $this->extractRequestParams();
+               
+               // Page filters
+               if (!$this->addWhereIf('page_is_redirect = 1', $params['filterredir'] === 'redirects'))
+                       $this->addWhereIf('page_is_redirect = 0', $params['filterredir'] === 'nonredirects');
+               $this->addWhereFld('page_namespace', $params['namespace']);
+               if (!is_null($params['from']))
+                       $this->addWhere('page_title>=' . $db->addQuotes(ApiQueryBase :: titleToKey($params['from'])));
+               if (isset ($params['prefix']))
+                       $this->addWhere("page_title LIKE '" . $db->escapeLike(ApiQueryBase :: titleToKey($params['prefix'])) . "%'");
+
+               $forceNameTitleIndex = true;
+               if (isset ($params['minsize'])) {
+                       $this->addWhere('page_len>=' . intval($params['minsize']));
+                       $forceNameTitleIndex = false;
+               }
+               
+               if (isset ($params['maxsize'])) {
+                       $this->addWhere('page_len<=' . intval($params['maxsize']));
+                       $forceNameTitleIndex = false;
+               }
+       
+               // Page protection filtering
+               if (isset ($params['prtype'])) {
+                       $this->addTables('page_restrictions');
+                       $this->addWhere('page_id=pr_page');
+                       $this->addWhere('pr_expiry>' . $db->addQuotes($db->timestamp()));
+                       $this->addWhereFld('pr_type', $params['prtype']);
+
+                       $prlevel = $params['prlevel'];
+                       if (!is_null($prlevel) && $prlevel != '' && $prlevel != '*')
+                               $this->addWhereFld('pr_level', $prlevel);
+
+                       $forceNameTitleIndex = false;
+
+               } else if (isset ($params['prlevel'])) {
+                       $this->dieUsage('prlevel may not be used without prtype', 'params');
+               }
+               
+               $this->addTables('page');
+               if ($forceNameTitleIndex)
+                       $this->addOption('USE INDEX', 'name_title');
+               
+
+               if (is_null($resultPageSet)) {
+                       $this->addFields(array (
+                               'page_id',
+                               'page_namespace',
+                               'page_title'
+                       ));
+               } else {
+                       $this->addFields($resultPageSet->getPageTableFields());
+               }
+
+               $limit = $params['limit'];
+               $this->addOption('LIMIT', $limit+1);
+               $this->addOption('ORDER BY', 'page_namespace, page_title');
+
+               $res = $this->select(__METHOD__);
+
+               $data = array ();
+               $count = 0;
+               while ($row = $db->fetchObject($res)) {
+                       if (++ $count > $limit) {
+                               // We've reached the one extra which shows that there are additional pages to be had. Stop here...
+                               // TODO: Security issue - if the user has no right to view next title, it will still be shown
+                               $this->setContinueEnumParameter('from', ApiQueryBase :: keyToTitle($row->page_title));
+                               break;
+                       }
+
+                       if (is_null($resultPageSet)) {
+                               $title = Title :: makeTitle($row->page_namespace, $row->page_title);
+                               $data[] = array(
+                                       'pageid' => intval($row->page_id),
+                                       'ns' => intval($title->getNamespace()),
+                                       'title' => $title->getPrefixedText());
+                       } else {
+                               $resultPageSet->processDbRow($row);
+                       }
+               }
+               $db->freeResult($res);
+
+               if (is_null($resultPageSet)) {
+                       $result = $this->getResult();
+                       $result->setIndexedTagName($data, 'p');
+                       $result->addValue('query', $this->getModuleName(), $data);
+               }
+       }
+
+       protected function getAllowedParams() {
+               global $wgRestrictionTypes, $wgRestrictionLevels;
+               
+               return array (
+                       'from' => null,
+                       'prefix' => null,
+                       'namespace' => array (
+                               ApiBase :: PARAM_DFLT => 0,
+                               ApiBase :: PARAM_TYPE => 'namespace',
+                       ),
+                       'filterredir' => array (
+                               ApiBase :: PARAM_DFLT => 'all',
+                               ApiBase :: PARAM_TYPE => array (
+                                       'all',
+                                       'redirects',
+                                       'nonredirects'
+                               )
+                       ),
+                       'minsize' => array (
+                               ApiBase :: PARAM_TYPE => 'integer',
+                       ), 
+                       'maxsize' => array (
+                               ApiBase :: PARAM_TYPE => 'integer',
+                       ), 
+                       'prtype' => array (
+                               ApiBase :: PARAM_TYPE => $wgRestrictionTypes,
+                       ),
+                       'prlevel' => array (
+                               ApiBase :: PARAM_TYPE => $wgRestrictionLevels,
+                       ),
+                       'limit' => array (
+                               ApiBase :: PARAM_DFLT => 10,
+                               ApiBase :: PARAM_TYPE => 'limit',
+                               ApiBase :: PARAM_MIN => 1,
+                               ApiBase :: PARAM_MAX => ApiBase :: LIMIT_BIG1,
+                               ApiBase :: PARAM_MAX2 => ApiBase :: LIMIT_BIG2
+                       )
+               );
+       }
+
+       protected function getParamDescription() {
+               return array (
+                       'from' => 'The page title to start enumerating from.',
+                       'prefix' => 'Search for all page titles that begin with this value.',
+                       'namespace' => 'The namespace to enumerate.',
+                       'filterredir' => 'Which pages to list.',
+                       'minsize' => 'Limit to pages with at least this many bytes',
+                       'maxsize' => 'Limit to pages with at most this many bytes',
+                       'prtype' => 'Limit to protected pages only',
+                       'prlevel' => 'The protection level (must be used with apprtype= parameter)',
+                       'limit' => 'How many total pages to return.'
+               );
+       }
+
+       protected function getDescription() {
+               return 'Enumerate all pages sequentially in a given namespace';
+       }
+
+       protected function getExamples() {
+               return array (
+                       'Simple Use',
+                       ' Show a list of pages starting at the letter "B"',
+                       '  api.php?action=query&list=allpages&apfrom=B',
+                       'Using as Generator',
+                       ' Show info about 4 pages starting at the letter "T"',
+                       '  api.php?action=query&generator=allpages&gaplimit=4&gapfrom=T&prop=info',
+                       ' Show content of first 2 non-redirect pages begining at "Re"',
+                       '  api.php?action=query&generator=allpages&gaplimit=2&gapfilterredir=nonredirects&gapfrom=Re&prop=revisions&rvprop=content'
+               );
+       }
+
+       public function getVersion() {
+               return __CLASS__ . ': $Id: ApiQueryAllpages.php 24694 2007-08-09 08:41:58Z yurik $';
+       }
+}
+