3 namespace CoreFramework\Handler\Raw;
6 * A general Handler for raw data from sockets
8 * @author Roland Haeder <webmaster@shipsimu.org>
10 * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2015 Core Developer Team
11 * @license GNU GPL 3.0 or any newer version
12 * @link http://www.shipsimu.org
14 * This program is free software: you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation, either version 3 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program. If not, see <http://www.gnu.org/licenses/>.
27 class BaseRawDataHandler extends BaseHandler {
29 // - Socket raw data stream errors
30 const SOCKET_ERROR_UNKNOWN = 'unknown_error'; // Unknown error (should not happen)
31 const SOCKET_ERROR_TRANSPORT_ENDPOINT = 'transport_endpoint'; // Transport endpoint has closed
32 const SOCKET_ERROR_INVALID_BASE64_MODULO = 'base64_modulo'; // Length is not modulo 4
33 const SOCKET_ERROR_INVALID_BASE64_MESSAGE = 'base64_message'; // Raw data is not Base64-encoded
34 const SOCKET_ERROR_UNHANDLED = 'unhandled_package'; // Unhandled raw data (not bad)
35 const SOCKET_ERROR_CONNECTION_REFUSED = 'connection_refused'; // The name says it: connection refused
36 const SOCKET_ERROR_CONNECTION_TIMED_OUT = 'connection_timed_out'; // The name says it: connection attempt has timed-out
37 const SOCKET_ERROR_OPERATION_IN_PROGRESS = 'operation_in_progress'; // 'Operation now in progress'
38 const SOCKET_ERROR_OPERATION_ALREADY_PROGRESS = 'operation_already_progress'; // 'Operation already in progress'
39 const SOCKET_ERROR_RESOURCE_UNAVAILABLE = 'resource_unavailable'; // 'Resource temporary unavailable'
40 const SOCKET_ERROR_NO_ROUTE_TO_HOST = 'no_route_to_host'; // The name says it: no route to host
41 const SOCKET_ERROR_CONNECTION_RESET_BY_PEER = 'connection_reset_by_peer'; // Connection reset by peer
42 const SOCKET_ERROR_BROKEN_PIPE = 'broken_pipe'; // Broken pipe
43 const SOCKET_ERROR_PERMISSION_DENIED = 'permission_denied'; // Permission denied
44 const SOCKET_CONNECTED = 'connected'; // Nothing errorous happens, socket is connected
47 const PACKAGE_ERROR_INVALID_DATA = 'invalid_data'; // Invalid data in package found
48 const PACKAGE_ERROR_INCOMPLETE_DATA = 'incomplete_data'; // Incomplete data sent (e.g. field is missing)
49 const PACKAGE_ERROR_INVALID_CONTENT = 'invalid_content'; // Content is invalid (e.g. not well-formed)
50 const PACKAGE_ERROR_RECIPIENT_MISMATCH = 'recipient_error'; // Recipient is not us
51 const PACKAGE_LEVEL_CHECK_OKAY = 'checked_package'; // Package is fine
54 const PACKAGE_RAW_DATA = 'raw_data';
55 const PACKAGE_ERROR_CODE = 'error_code';
58 const STREAM_START_MARKER = '[[S]]';
59 const STREAM_END_MARKER = '[[E]]';
62 * Stacker for raw data
64 const STACKER_NAME_RAW_DATA = 'raw_data';
67 * Error code from socket
69 private $errorCode = -1;
72 * Protected constructor
74 * @param $className Name of the class
77 protected function __construct ($className) {
78 // Call parent constructor
79 parent::__construct($className);
81 // Set error code to 'unknown'
82 $this->setErrorCode(self::SOCKET_ERROR_UNKNOWN);
84 // Init stacker instance for processed raw data
85 $stackInstance = ObjectFactory::createObjectByConfiguredName('node_raw_data_stacker_class');
87 // Remember this in this package handler
88 $this->setStackInstance($stackInstance);
95 * Initializes the stacker for raw data
99 protected function initStack () {
100 $this->getStackInstance()->initStack(self::STACKER_NAME_RAW_DATA);
104 * Adds given raw data to the raw data stacker
106 * @param $rawData raw data from the socket resource
109 protected function addRawDataToStacker ($rawData) {
111 * Add the deocoded data and error code to the stacker so other classes
112 * (e.g. NetworkPackage) can "pop" it from the stacker.
114 $this->getStackInstance()->pushNamed(self::STACKER_NAME_RAW_DATA, array(
115 self::PACKAGE_RAW_DATA => $rawData,
116 self::PACKAGE_ERROR_CODE => $this->getErrorCode()
121 * Checks whether raw data is pending for further processing.
123 * @return $isPending Whether raw data is pending
125 public function isRawDataPending () {
126 // Does the stacker have some entries (not empty)?
127 $isPending = (!$this->getStackInstance()->isStackEmpty(self::STACKER_NAME_RAW_DATA));
134 * "Getter" for next raw data from the stacker
136 * @return $rawData Raw data from the stacker
138 public function getNextRawData () {
139 // "Pop" the raw data from the stacker
140 $rawData = $this->getStackInstance()->popNamed(self::STACKER_NAME_RAW_DATA);
147 * Checks whether the 'recipient' field matches our own an universal node
150 * @param $packageData Raw package data
151 * @return $matches Whether it matches
152 * @todo This method will be moved to a better place
154 protected function ifRecipientMatchesOwnUniversalNodeLocator (array $packageData) {
155 // Construct own address first
156 $ownAddress = NodeObjectFactory::createNodeInstance()->determineUniversalNodeLocator();
159 $matches = ($ownAddress === $packageData[NetworkPackage::PACKAGE_DATA_RECIPIENT]);
166 * Setter for error code
168 * @param $errorCode The error code we shall set
171 public final function setErrorCode ($errorCode) {
172 $this->errorCode = $errorCode;
176 * Getter for error code
178 * @return $errorCode The error code
180 public final function getErrorCode () {
181 return $this->errorCode;