Patch from MaxSem re bug 15162 - handle throttling in the login API
[lhc/web/wiklou.git] / includes / api / ApiQueryAllpages.php
index 3719fe9..c4ac486 100644 (file)
@@ -30,8 +30,8 @@ if (!defined('MEDIAWIKI')) {
 
 /**
  * Query module to enumerate all available pages.
- * 
- * @addtogroup API
+ *
+ * @ingroup API
  */
 class ApiQueryAllpages extends ApiQueryGeneratorBase {
 
@@ -56,14 +56,59 @@ class ApiQueryAllpages extends ApiQueryGeneratorBase {
 
                $params = $this->extractRequestParams();
 
+               // Page filters
                $this->addTables('page');
                if (!$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'])));
+               $dir = ($params['dir'] == 'descending' ? 'older' : 'newer');
+               $from = (is_null($params['from']) ? null : $this->titleToKey($params['from']));
+               $this->addWhereRange('page_title', $dir, $from, null);
                if (isset ($params['prefix']))
-                       $this->addWhere("page_title LIKE '" . $db->escapeLike(ApiQueryBase :: titleToKey($params['prefix'])) . "%'");
+                       $this->addWhere("page_title LIKE '" . $db->escapeLike($this->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);
+
+                       $this->addOption('DISTINCT');
+
+                       $forceNameTitleIndex = false;
+
+               } else if (isset ($params['prlevel'])) {
+                       $this->dieUsage('prlevel may not be used without prtype', 'params');
+               }
+
+               if($params['filterlanglinks'] == 'withoutlanglinks') {
+                       $this->addTables('langlinks');
+                       $this->addJoinConds(array('langlinks' => array('LEFT JOIN', 'page_id=ll_from')));
+                       $this->addWhere('ll_from IS NULL');
+                       $forceNameTitleIndex = false;
+               } else if($params['filterlanglinks'] == 'withlanglinks') {
+                       $this->addTables('langlinks');
+                       $this->addWhere('page_id=ll_from');
+                       $forceNameTitleIndex = false;
+               }
+               if ($forceNameTitleIndex)
+                       $this->addOption('USE INDEX', 'name_title');
 
                if (is_null($resultPageSet)) {
                        $this->addFields(array (
@@ -75,11 +120,8 @@ class ApiQueryAllpages extends ApiQueryGeneratorBase {
                        $this->addFields($resultPageSet->getPageTableFields());
                }
 
-               $this->addOption('USE INDEX', 'name_title');
                $limit = $params['limit'];
                $this->addOption('LIMIT', $limit+1);
-               $this->addOption('ORDER BY', 'page_namespace, page_title');
-
                $res = $this->select(__METHOD__);
 
                $data = array ();
@@ -88,7 +130,7 @@ class ApiQueryAllpages extends ApiQueryGeneratorBase {
                        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));
+                               $this->setContinueEnumParameter('from', $this->keyToTitle($row->page_title));
                                break;
                        }
 
@@ -111,13 +153,15 @@ class ApiQueryAllpages extends ApiQueryGeneratorBase {
                }
        }
 
-       protected function getAllowedParams() {
+       public function getAllowedParams() {
+               global $wgRestrictionTypes, $wgRestrictionLevels;
+
                return array (
                        'from' => null,
                        'prefix' => null,
                        'namespace' => array (
                                ApiBase :: PARAM_DFLT => 0,
-                               ApiBase :: PARAM_TYPE => 'namespace'
+                               ApiBase :: PARAM_TYPE => 'namespace',
                        ),
                        'filterredir' => array (
                                ApiBase :: PARAM_DFLT => 'all',
@@ -127,27 +171,62 @@ class ApiQueryAllpages extends ApiQueryGeneratorBase {
                                        'nonredirects'
                                )
                        ),
+                       'minsize' => array (
+                               ApiBase :: PARAM_TYPE => 'integer',
+                       ),
+                       'maxsize' => array (
+                               ApiBase :: PARAM_TYPE => 'integer',
+                       ),
+                       'prtype' => array (
+                               ApiBase :: PARAM_TYPE => $wgRestrictionTypes,
+                               ApiBase :: PARAM_ISMULTI => true
+                       ),
+                       'prlevel' => array (
+                               ApiBase :: PARAM_TYPE => $wgRestrictionLevels,
+                               ApiBase :: PARAM_ISMULTI => true
+                       ),
                        '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
+                       ),
+                       'dir' => array (
+                               ApiBase :: PARAM_DFLT => 'ascending',
+                               ApiBase :: PARAM_TYPE => array (
+                                       'ascending',
+                                       'descending'
+                               )
+                       ),
+                       'filterlanglinks' => array(
+                               ApiBase :: PARAM_TYPE => array(
+                                       'withlanglinks',
+                                       'withoutlanglinks',
+                                       'all'
+                               ),
+                               ApiBase :: PARAM_DFLT => 'all'
                        )
                );
        }
 
-       protected function getParamDescription() {
+       public 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.',
+                       'dir' => 'The direction in which 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)',
+                       'filterlanglinks' => 'Filter based on whether a page has langlinks',
                        'limit' => 'How many total pages to return.'
                );
        }
 
-       protected function getDescription() {
+       public function getDescription() {
                return 'Enumerate all pages sequentially in a given namespace';
        }
 
@@ -168,4 +247,3 @@ class ApiQueryAllpages extends ApiQueryGeneratorBase {
                return __CLASS__ . ': $Id$';
        }
 }
-