--- /dev/null
+<?php
+// Own namespace
+namespace CoreFramework\Handler\Raw;
+
+// Import framework stuff
+use CoreFramework\Factory\ObjectFactory;
+
+/**
+ * A general Handler for raw data from sockets
+ *
+ * @author Roland Haeder <webmaster@shipsimu.org>
+ * @version 0.0.0
+ * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2015 Core Developer Team
+ * @license GNU GPL 3.0 or any newer version
+ * @link http://www.shipsimu.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 BaseRawDataHandler extends BaseHandler {
+ // Error codes:
+ // - Socket raw data stream errors
+ const SOCKET_ERROR_UNKNOWN = 'unknown_error'; // Unknown error (should not happen)
+ const SOCKET_ERROR_TRANSPORT_ENDPOINT = 'transport_endpoint'; // Transport endpoint has closed
+ const SOCKET_ERROR_INVALID_BASE64_MODULO = 'base64_modulo'; // Length is not modulo 4
+ const SOCKET_ERROR_INVALID_BASE64_MESSAGE = 'base64_message'; // Raw data is not Base64-encoded
+ const SOCKET_ERROR_UNHANDLED = 'unhandled_package'; // Unhandled raw data (not bad)
+ const SOCKET_ERROR_CONNECTION_REFUSED = 'connection_refused'; // The name says it: connection refused
+ const SOCKET_ERROR_CONNECTION_TIMED_OUT = 'connection_timed_out'; // The name says it: connection attempt has timed-out
+ const SOCKET_ERROR_OPERATION_IN_PROGRESS = 'operation_in_progress'; // 'Operation now in progress'
+ const SOCKET_ERROR_OPERATION_ALREADY_PROGRESS = 'operation_already_progress'; // 'Operation already in progress'
+ const SOCKET_ERROR_RESOURCE_UNAVAILABLE = 'resource_unavailable'; // 'Resource temporary unavailable'
+ const SOCKET_ERROR_NO_ROUTE_TO_HOST = 'no_route_to_host'; // The name says it: no route to host
+ const SOCKET_ERROR_CONNECTION_RESET_BY_PEER = 'connection_reset_by_peer'; // Connection reset by peer
+ const SOCKET_ERROR_BROKEN_PIPE = 'broken_pipe'; // Broken pipe
+ const SOCKET_ERROR_PERMISSION_DENIED = 'permission_denied'; // Permission denied
+ const SOCKET_CONNECTED = 'connected'; // Nothing errorous happens, socket is connected
+
+ // - Package errors
+ const PACKAGE_ERROR_INVALID_DATA = 'invalid_data'; // Invalid data in package found
+ const PACKAGE_ERROR_INCOMPLETE_DATA = 'incomplete_data'; // Incomplete data sent (e.g. field is missing)
+ const PACKAGE_ERROR_INVALID_CONTENT = 'invalid_content'; // Content is invalid (e.g. not well-formed)
+ const PACKAGE_ERROR_RECIPIENT_MISMATCH = 'recipient_error'; // Recipient is not us
+ const PACKAGE_LEVEL_CHECK_OKAY = 'checked_package'; // Package is fine
+
+ // Package data
+ const PACKAGE_RAW_DATA = 'raw_data';
+ const PACKAGE_ERROR_CODE = 'error_code';
+
+ // Start/end marker
+ const STREAM_START_MARKER = '[[S]]';
+ const STREAM_END_MARKER = '[[E]]';
+
+ /**
+ * Stacker for raw data
+ */
+ const STACKER_NAME_RAW_DATA = 'raw_data';
+
+ /**
+ * Error code from socket
+ */
+ private $errorCode = -1;
+
+ /**
+ * Protected constructor
+ *
+ * @param $className Name of the class
+ * @return void
+ */
+ protected function __construct ($className) {
+ // Call parent constructor
+ parent::__construct($className);
+
+ // Set error code to 'unknown'
+ $this->setErrorCode(self::SOCKET_ERROR_UNKNOWN);
+
+ // Init stacker instance for processed raw data
+ $stackInstance = ObjectFactory::createObjectByConfiguredName('node_raw_data_stacker_class');
+
+ // Remember this in this package handler
+ $this->setStackInstance($stackInstance);
+
+ // Init stacker
+ $this->initStack();
+ }
+
+ /**
+ * Initializes the stacker for raw data
+ *
+ * @return void
+ */
+ protected function initStack () {
+ $this->getStackInstance()->initStack(self::STACKER_NAME_RAW_DATA);
+ }
+
+ /**
+ * Adds given raw data to the raw data stacker
+ *
+ * @param $rawData raw data from the socket resource
+ * @return void
+ */
+ protected function addRawDataToStacker ($rawData) {
+ /*
+ * Add the deocoded data and error code to the stacker so other classes
+ * (e.g. NetworkPackage) can "pop" it from the stacker.
+ */
+ $this->getStackInstance()->pushNamed(self::STACKER_NAME_RAW_DATA, array(
+ self::PACKAGE_RAW_DATA => $rawData,
+ self::PACKAGE_ERROR_CODE => $this->getErrorCode()
+ ));
+ }
+
+ /**
+ * Checks whether raw data is pending for further processing.
+ *
+ * @return $isPending Whether raw data is pending
+ */
+ public function isRawDataPending () {
+ // Does the stacker have some entries (not empty)?
+ $isPending = (!$this->getStackInstance()->isStackEmpty(self::STACKER_NAME_RAW_DATA));
+
+ // Return it
+ return $isPending;
+ }
+
+ /**
+ * "Getter" for next raw data from the stacker
+ *
+ * @return $rawData Raw data from the stacker
+ */
+ public function getNextRawData () {
+ // "Pop" the raw data from the stacker
+ $rawData = $this->getStackInstance()->popNamed(self::STACKER_NAME_RAW_DATA);
+
+ // And return it
+ return $rawData;
+ }
+
+ /**
+ * Checks whether the 'recipient' field matches our own an universal node
+ * locator.
+ *
+ * @param $packageData Raw package data
+ * @return $matches Whether it matches
+ * @todo This method will be moved to a better place
+ */
+ protected function ifRecipientMatchesOwnUniversalNodeLocator (array $packageData) {
+ // Construct own address first
+ $ownAddress = NodeObjectFactory::createNodeInstance()->determineUniversalNodeLocator();
+
+ // Does it match?
+ $matches = ($ownAddress === $packageData[NetworkPackage::PACKAGE_DATA_RECIPIENT]);
+
+ // Return result
+ return $matches;
+ }
+
+ /**
+ * Setter for error code
+ *
+ * @param $errorCode The error code we shall set
+ * @return void
+ */
+ public final function setErrorCode ($errorCode) {
+ $this->errorCode = $errorCode;
+ }
+
+ /**
+ * Getter for error code
+ *
+ * @return $errorCode The error code
+ */
+ public final function getErrorCode () {
+ return $this->errorCode;
+ }
+
+}
projects / core.git / blobdiff