diff options
Diffstat (limited to 'models/Auth/OpenID/MemcachedStore.php')
| -rw-r--r-- | models/Auth/OpenID/MemcachedStore.php | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/models/Auth/OpenID/MemcachedStore.php b/models/Auth/OpenID/MemcachedStore.php deleted file mode 100644 index fc10800b1..000000000 --- a/models/Auth/OpenID/MemcachedStore.php +++ /dev/null @@ -1,207 +0,0 @@ -<?php - -/** - * This file supplies a memcached store backend for OpenID servers and - * consumers. - * - * PHP versions 4 and 5 - * - * LICENSE: See the COPYING file included in this distribution. - * - * @package OpenID - * @author Artemy Tregubenko <me@arty.name> - * @copyright 2008 JanRain, Inc. - * @license http://www.apache.org/licenses/LICENSE-2.0 Apache - * Contributed by Open Web Technologies <http://openwebtech.ru/> - */ - -/** - * Import the interface for creating a new store class. - */ -require_once 'Auth/OpenID/Interface.php'; - -/** - * This is a memcached-based store for OpenID associations and - * nonces. - * - * As memcache has limit of 250 chars for key length, - * server_url, handle and salt are hashed with sha1(). - * - * Most of the methods of this class are implementation details. - * People wishing to just use this store need only pay attention to - * the constructor. - * - * @package OpenID - */ -class Auth_OpenID_MemcachedStore extends Auth_OpenID_OpenIDStore { - - /** - * Initializes a new {@link Auth_OpenID_MemcachedStore} instance. - * Just saves memcached object as property. - * - * @param resource connection Memcache connection resourse - */ - function Auth_OpenID_MemcachedStore($connection, $compress = false) - { - $this->connection = $connection; - $this->compress = $compress ? MEMCACHE_COMPRESSED : 0; - } - - /** - * Store association until its expiration time in memcached. - * Overwrites any existing association with same server_url and - * handle. Handles list of associations for every server. - */ - function storeAssociation($server_url, $association) - { - // create memcached keys for association itself - // and list of associations for this server - $associationKey = $this->associationKey($server_url, - $association->handle); - $serverKey = $this->associationServerKey($server_url); - - // get list of associations - $serverAssociations = $this->connection->get($serverKey); - - // if no such list, initialize it with empty array - if (!$serverAssociations) { - $serverAssociations = array(); - } - // and store given association key in it - $serverAssociations[$association->issued] = $associationKey; - - // save associations' keys list - $this->connection->set( - $serverKey, - $serverAssociations, - $this->compress - ); - // save association itself - $this->connection->set( - $associationKey, - $association, - $this->compress, - $association->issued + $association->lifetime); - } - - /** - * Read association from memcached. If no handle given - * and multiple associations found, returns latest issued - */ - function getAssociation($server_url, $handle = null) - { - // simple case: handle given - if ($handle !== null) { - // get association, return null if failed - $association = $this->connection->get( - $this->associationKey($server_url, $handle)); - return $association ? $association : null; - } - - // no handle given, working with list - // create key for list of associations - $serverKey = $this->associationServerKey($server_url); - - // get list of associations - $serverAssociations = $this->connection->get($serverKey); - // return null if failed or got empty list - if (!$serverAssociations) { - return null; - } - - // get key of most recently issued association - $keys = array_keys($serverAssociations); - sort($keys); - $lastKey = $serverAssociations[array_pop($keys)]; - - // get association, return null if failed - $association = $this->connection->get($lastKey); - return $association ? $association : null; - } - - /** - * Immediately delete association from memcache. - */ - function removeAssociation($server_url, $handle) - { - // create memcached keys for association itself - // and list of associations for this server - $serverKey = $this->associationServerKey($server_url); - $associationKey = $this->associationKey($server_url, - $handle); - - // get list of associations - $serverAssociations = $this->connection->get($serverKey); - // return null if failed or got empty list - if (!$serverAssociations) { - return false; - } - - // ensure that given association key exists in list - $serverAssociations = array_flip($serverAssociations); - if (!array_key_exists($associationKey, $serverAssociations)) { - return false; - } - - // remove given association key from list - unset($serverAssociations[$associationKey]); - $serverAssociations = array_flip($serverAssociations); - - // save updated list - $this->connection->set( - $serverKey, - $serverAssociations, - $this->compress - ); - - // delete association - return $this->connection->delete($associationKey); - } - - /** - * Create nonce for server and salt, expiring after - * $Auth_OpenID_SKEW seconds. - */ - function useNonce($server_url, $timestamp, $salt) - { - global $Auth_OpenID_SKEW; - - // save one request to memcache when nonce obviously expired - if (abs($timestamp - time()) > $Auth_OpenID_SKEW) { - return false; - } - - // returns false when nonce already exists - // otherwise adds nonce - return $this->connection->add( - 'openid_nonce_' . sha1($server_url) . '_' . sha1($salt), - 1, // any value here - $this->compress, - $Auth_OpenID_SKEW); - } - - /** - * Memcache key is prefixed with 'openid_association_' string. - */ - function associationKey($server_url, $handle = null) - { - return 'openid_association_' . sha1($server_url) . '_' . sha1($handle); - } - - /** - * Memcache key is prefixed with 'openid_association_' string. - */ - function associationServerKey($server_url) - { - return 'openid_association_server_' . sha1($server_url); - } - - /** - * Report that this storage doesn't support cleanup - */ - function supportsCleanup() - { - return false; - } -} - |