<?php
-/**
- * A database wrapper for peer state lookups
- *
- * @author Roland Haeder <webmaster@ship-simu.org>
- * @version 0.0.0
- * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2011 Hub Developer Team
- * @license GNU GPL 3.0 or any newer version
- * @link http://www.ship-simu.org
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- */
-class PeerStateLookupDatabaseWrapper extends BaseDatabaseWrapper {
- // Exception constants
- const EXCEPTION_PEER_ALREADY_REGISTERED = 0x300;
-
- // Constants for database table names
- const DB_TABLE_PEER_LOOKUP = 'peer_states';
-
- // Constants for database column names
- const DB_COLUMN_PEER_IP = 'peer_ip';
- const DB_COLUMN_PEER_PORT = 'peer_port';
- const DB_COLUMN_PEER_SESSION_ID = 'peer_session_id';
-
- /**
- * Protected constructor
- *
- * @return void
- */
- protected function __construct () {
- // Call parent constructor
- parent::__construct(__CLASS__);
- }
-
- /**
- * Creates an instance of this database wrapper by a provided user class
- *
- * @return $wrapperInstance An instance of the created wrapper class
- */
- public static final function createPeerStateLookupDatabaseWrapper () {
- // Get a new instance
- $wrapperInstance = new PeerStateLookupDatabaseWrapper();
-
- // Set (primary!) table name
- $wrapperInstance->setTableName(self::DB_TABLE_PEER_LOOKUP);
-
- // Return the instance
- return $wrapperInstance;
- }
-
- /**
- * Getter for index key
- *
- * @return $indexKey Index key
- */
- public final function getIndexKey () {
- return $this->getDatabaseInstance()->getIndexKey();
- }
-
- /**
- * Checks wether given 'sender' is a new peer
- *
- * @param $packageData Raw package data
- * @return $isNewPeer Wether 'sender' is a new peer to this node
- */
- public function isSenderNewPeer (array $packageData) {
- // Is always new peer by default
- $isNewPeer = true;
-
- // Is the package valid?
- if (!isset($packageData[NetworkPackage::INDEX_PACKAGE_SENDER])) {
- // Invalid package found, please report this
- die('packageData='.print_r($packageData, true));
- } // END - if
-
- // Remove session id > IP:port
- $ipPort = HubTools::resolveSessionId($packageData[NetworkPackage::INDEX_PACKAGE_SENDER]);
-
- // Is it not invalid:invalid?
- if ($ipPort != 'invalid:invalid') {
- // Get a search criteria instance
- $searchInstance = ObjectFactory::createObjectByConfiguredName('search_criteria_class');
-
- // Add 'sender' as the peer's IP address
- $searchInstance->addCriteria(self::DB_COLUMN_PEER_IP, $ipPort);
- $searchInstance->setLimit(1);
-
- // Count the query
- $entries = $this->doSelectCountByCriteria($searchInstance);
-
- // Is it there?
- $isNewPeer = ($entries === 0);
- } // END - if
-
- // Return the result
- return $isNewPeer;
- }
-
- /**
- * Registers a new peer with given package data. We use the session id from it.
- *
- * @param $packageData Raw package data
- * @param $socketResource A valid socket resource
- * @return void
- * @throws PeerAlreadyRegisteredException If a peer is already registered
- * @throws InvalidSocketException If the socket resource was invalid
- */
- public function registerPeerByPackageData (array $packageData, $socketResource) {
- // Make sure only new peers can be registered with package data
- if (!$this->isSenderNewPeer($packageData)) {
- // Throw an exception because this should normally not happen
- throw new PeerAlreadyRegisteredException(array($this, $packageData), self::EXCEPTION_PEER_ALREADY_REGISTERED);
- } // END - if
-
- // Generate a dataset instance
- $dataSetInstance = ObjectFactory::createObjectByConfiguredName('dataset_criteria_class', array(self::DB_TABLE_PEER_LOOKUP));
-
- // Session ids must be unique
- $dataSetInstance->setUniqueKey(self::DB_COLUMN_PEER_SESSION_ID);
-
- // Add session id
- $dataSetInstance->addCriteria(self::DB_COLUMN_PEER_SESSION_ID, $packageData[NetworkPackage::INDEX_PACKAGE_SENDER]);
-
- // Get peer name
- if (!socket_getpeername($socketResource, $peerName, $peerPort)) {
- // Get last error
- $lastError = socket_last_error($socketResource);
-
- // Doesn't work!
- throw new InvalidSocketException(array($this, gettype($socketResource), $lastError, socket_strerror($lastError)), BaseListener::EXCEPTION_INVALID_SOCKET);
- } // END - if
-
- // Add ip address and port
- $dataSetInstance->addCriteria(self::DB_COLUMN_PEER_IP , $peerName);
- $dataSetInstance->addCriteria(self::DB_COLUMN_PEER_PORT, $peerPort);
-
- // "Insert" the data set
- $this->getDatabaseInstance()->queryInsertDataSet($dataSetInstance);
- }
-
- /**
- * Purges old entries of given socket resource. We use the IP address from that resource.
- *
- * @param $socketResource A valid socket resource
- * @return void
- * @throws InvalidSocketException If the socket resource was invalid
- */
- public function purgeOldEntriesBySocketResource ($socketResource) {
- // Get peer name
- if (!socket_getpeername($socketResource, $peerName, $peerPort)) {
- // Get last error
- $lastError = socket_last_error($socketResource);
-
- // Doesn't work!
- throw new InvalidSocketException(array($this, gettype($socketResource), $lastError, socket_strerror($lastError)), BaseListener::EXCEPTION_INVALID_SOCKET);
- } // END - if
- }
-}
-
-// [EOF]
+// @DEPRECATED
?>
projects / hub.git / blobdiff