/**
* A general hub system class
*
- * @author Roland Haeder <webmaster@ship-simu.org>
+ * @author Roland Haeder <webmaster@shipsimu.org>
* @version 0.0.0
- * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009, 2010 Hub Developer Team
+ * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2015 Hub Developer Team
* @license GNU GPL 3.0 or any newer version
- * @link http://www.ship-simu.org
+ * @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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
class BaseHubSystem extends BaseFrameworkSystem {
+ // Exception codes
+ const EXCEPTION_UNSUPPORTED_ERROR_HANDLER = 0x900;
+ const EXCEPTION_CHUNK_ALREADY_ASSEMBLED = 0x901;
+ const EXCEPTION_ANNOUNCEMENT_NOT_ACCEPTED = 0x902;
+ const EXCEPTION_INVALID_CONNECTION_TYPE = 0x903;
+ const EXCEPTION_ANNOUNCEMENT_NOT_ATTEMPTED = 0x904;
+ const EXCEPTION_BASE64_ENCODING_NOT_MODULO_4 = 0x905;
+ const EXCEPTION_NODE_SESSION_ID_NOT_VERIFYING = 0x906;
+ const EXCEPTION_REQUEST_NOT_ACCEPTED = 0x907;
+ const EXCEPTION_DHT_BOOTSTRAP_NOT_ACCEPTED = 0x908;
+ const EXCEPTION_MULTIPLE_MESSAGE_SENT = 0x909;
+ const EXCEPTION_DHT_BOOTSTRAP_NOT_ATTEMPTED = 0x90a;
+ const EXCEPTION_INVALID_UNL = 0x90b;
+
+ // Message status codes
+ const MESSAGE_STATUS_CODE_OKAY = 'OKAY';
+
+ /**
+ * Separator for all bootstrap node entries
+ */
+ const BOOTSTRAP_NODES_SEPARATOR = ';';
+
/**
* An instance of a node
*/
- private $nodeInstance = null;
+ private $nodeInstance = NULL;
/**
- * Listener instance
+ * An instance of a communicator
*/
- private $listenerInstance = null;
+ private $communicatorInstance = NULL;
/**
* A network package handler instance
*/
- private $packageInstance = null;
+ private $packageInstance = NULL;
+
+ /**
+ * A Receivable instance
+ */
+ private $receiverInstance = NULL;
+
+ /**
+ * State instance
+ */
+ private $stateInstance = NULL;
+
+ /**
+ * Listener pool instance
+ */
+ private $listenerPoolInstance = NULL;
+
+ /**
+ * Fragmenter instance
+ */
+ private $fragmenterInstance = NULL;
+
+ /**
+ * Assembler instance
+ */
+ private $assemblerInstance = NULL;
+
+ /**
+ * Info instance
+ */
+ private $infoInstance = NULL;
+
+ /**
+ * Name of used protocol
+ */
+ private $protocolName = 'invalid';
/**
* Protected constructor
}
/**
- * Setter for listener instance
- *
- * @param $listenerInstance A Listenable instance
- * @return void
- */
- protected final function setListenerInstance (Listenable $listenerInstance) {
- $this->listenerInstance = $listenerInstance;
- }
-
- /**
- * Getter for listener instance
+ * Getter for node instance
*
- * @return $listenerInstance A Listenable instance
+ * @return $nodeInstance An instance of a node node
*/
- protected final function getListenerInstance () {
- return $this->listenerInstance;
+ public final function getNodeInstance () {
+ return $this->nodeInstance;
}
/**
}
/**
- * Getter for node instance
+ * Getter for communicator instance
*
- * @return $nodeInstance An instance of a node node
+ * @return $communicatorInstance An instance of a Communicator class
*/
- public final function getNodeInstance () {
- return $this->nodeInstance;
+ public final function getCommunicatorInstance () {
+ return $this->communicatorInstance;
+ }
+
+ /**
+ * Setter for communicator instance
+ *
+ * @param $communicatorInstance An instance of a Communicator class
+ * @return void
+ */
+ protected final function setCommunicatorInstance (Communicator $communicatorInstance) {
+ $this->communicatorInstance = $communicatorInstance;
}
/**
* Setter for network package handler instance
*
- * @param $packageInstance The network package handler instance we shall set
+ * @param $packageInstance The network package instance we shall set
* @return void
*/
- protected final function setPackageInstance (Networkable $packageInstance) {
+ protected final function setPackageInstance (Deliverable $packageInstance) {
$this->packageInstance = $packageInstance;
}
return $this->packageInstance;
}
+ /**
+ * Setter for receiver instance
+ *
+ * @param $receiverInstance A Receivable instance we shall set
+ * @return void
+ */
+ protected final function setReceiverInstance (Receivable $receiverInstance) {
+ $this->receiverInstance = $receiverInstance;
+ }
+
+ /**
+ * Getter for receiver instance
+ *
+ * @return $receiverInstance A Receivable instance we shall get
+ */
+ protected final function getReceiverInstance () {
+ return $this->receiverInstance;
+ }
+
+ /**
+ * Setter for state instance
+ *
+ * @param $stateInstance A Stateable instance
+ * @return void
+ */
+ public final function setStateInstance (Stateable $stateInstance) {
+ $this->stateInstance = $stateInstance;
+ }
+
+ /**
+ * Getter for state instance
+ *
+ * @return $stateInstance A Stateable instance
+ */
+ public final function getStateInstance () {
+ return $this->stateInstance;
+ }
+
+ /**
+ * Setter for listener pool instance
+ *
+ * @param $listenerPoolInstance The new listener pool instance
+ * @return void
+ */
+ protected final function setListenerPoolInstance (PoolableListener $listenerPoolInstance) {
+ $this->listenerPoolInstance = $listenerPoolInstance;
+ }
+
+ /**
+ * Getter for listener pool instance
+ *
+ * @return $listenerPoolInstance Our current listener pool instance
+ */
+ public final function getListenerPoolInstance () {
+ return $this->listenerPoolInstance;
+ }
+
+ /**
+ * Setter for fragmenter instance
+ *
+ * @param $fragmenterInstance A Fragmentable instance
+ * @return void
+ */
+ protected final function setFragmenterInstance (Fragmentable $fragmenterInstance) {
+ $this->fragmenterInstance = $fragmenterInstance;
+ }
+
+ /**
+ * Getter for fragmenter instance
+ *
+ * @return $fragmenterInstance A Fragmentable instance
+ */
+ protected final function getFragmenterInstance () {
+ return $this->fragmenterInstance;
+ }
+
+ /**
+ * Setter for assembler instance
+ *
+ * @param $assemblerInstance An instance of an Assembler class
+ * @return void
+ */
+ protected final function setAssemblerInstance (Assembler $assemblerInstance) {
+ $this->assemblerInstance = $assemblerInstance;
+ }
+
+ /**
+ * Getter for assembler instance
+ *
+ * @return $assemblerInstance An instance of an Assembler class
+ */
+ protected final function getAssemblerInstance () {
+ return $this->assemblerInstance;
+ }
+
+ /**
+ * Setter for info instance
+ *
+ * @param $infoInstance A ShareableInfo instance
+ * @return void
+ */
+ protected final function setInfoInstance (ShareableInfo $infoInstance) {
+ $this->infoInstance = $infoInstance;
+ }
+
+ /**
+ * Getter for info instance
+ *
+ * @return $infoInstance An instance of a ShareableInfo class
+ */
+ public final function getInfoInstance () {
+ return $this->infoInstance;
+ }
+
+ /**
+ * Setter for node id
+ *
+ * @param $nodeId The new node id
+ * @return void
+ */
+ protected final function setNodeId ($nodeId) {
+ // Set it config now
+ $this->getConfigInstance()->setConfigEntry('node_id', (string) $nodeId);
+ }
+
+ /**
+ * Getter for node id
+ *
+ * @return $nodeId Current node id
+ */
+ public final function getNodeId () {
+ // Get it from config
+ return $this->getConfigInstance()->getConfigEntry('node_id');
+ }
+
+ /**
+ * Setter for private key
+ *
+ * @param $privateKey The new private key
+ * @return void
+ */
+ protected final function setPrivateKey ($privateKey) {
+ // Set it config now
+ $this->getConfigInstance()->setConfigEntry('private_key', (string) $privateKey);
+ }
+
+ /**
+ * Getter for private key
+ *
+ * @return $privateKey Current private key
+ */
+ public final function getPrivateKey () {
+ // Get it from config
+ return $this->getConfigInstance()->getConfigEntry('private_key');
+ }
+
+ /**
+ * Setter for private key hash
+ *
+ * @param $privateKeyHash The new private key hash
+ * @return void
+ */
+ protected final function setPrivateKeyHash ($privateKeyHash) {
+ // Set it config now
+ $this->getConfigInstance()->setConfigEntry('private_key_hash', (string) $privateKeyHash);
+ }
+
+ /**
+ * Getter for private key hash
+ *
+ * @return $privateKeyHash Current private key hash
+ */
+ public final function getPrivateKeyHash () {
+ // Get it from config
+ return $this->getConfigInstance()->getConfigEntry('private_key_hash');
+ }
+
+ /**
+ * Setter for session id
+ *
+ * @param $sessionId The new session id
+ * @return void
+ */
+ protected final function setSessionId ($sessionId) {
+ $this->getConfigInstance()->setConfigEntry('session_id', (string) $sessionId);
+ }
+
+ /**
+ * Getter for session id
+ *
+ * @return $sessionId Current session id
+ */
+ public final function getSessionId () {
+ return $this->getConfigInstance()->getConfigEntry('session_id');
+ }
+
+ /**
+ * Getter for protocol name
+ *
+ * @return $protocolName Name of used protocol
+ */
+ public final function getProtocolName () {
+ return $this->protocolName;
+ }
+
+ /**
+ * Setter for protocol name
+ *
+ * @param $protocolName Name of used protocol
+ * @return void
+ */
+ protected final function setProtocolName ($protocolName) {
+ $this->protocolName = $protocolName;
+ }
+
+ /**
+ * Constructs a callable method name from given socket error code. If the
+ * method is not found, a generic one is used.
+ *
+ * @param $errorCode Error code from socket_last_error()
+ * @return $handlerName Call-back method name for the error handler
+ * @throws UnsupportedSocketErrorHandlerException If the error handler is not implemented
+ */
+ protected function getSocketErrorHandlerFromCode ($errorCode) {
+ // Create a name from translated error code
+ $handlerName = 'socketError' . $this->convertToClassName($this->translateSocketErrorCodeToName($errorCode)) . 'Handler';
+
+ // Is the call-back method there?
+ if (!method_exists($this, $handlerName)) {
+ // Please implement this
+ throw new UnsupportedSocketErrorHandlerException(array($this, $handlerName, $errorCode), self::EXCEPTION_UNSUPPORTED_ERROR_HANDLER);
+ } // END - if
+
+ // Return it
+ return $handlerName;
+ }
+
+ /**
+ * Handles socket error for given socket resource and peer data. This method
+ * validates $socketResource if it is a valid resource (see is_resource())
+ * but assumes valid data in array $recipientData, except that
+ * count($recipientData) is always 2.
+ *
+ * @param $method Value of __METHOD__ from calling method
+ * @param $line Value of __LINE__ from calling method
+ * @param $socketResource A valid socket resource
+ * @param $unlData A valid UNL data array
+ * @return void
+ * @throws InvalidSocketException If $socketResource is no socket resource
+ * @throws NoSocketErrorDetectedException If socket_last_error() gives zero back
+ */
+ protected final function handleSocketError ($method, $line, $socketResource, array $unlData) {
+ // This method handles only socket resources
+ if (!is_resource($socketResource)) {
+ // No resource, abort here
+ throw new InvalidSocketException(array($this, $socketResource), BaseListener::EXCEPTION_INVALID_SOCKET);
+ } // END - if
+
+ // Check UNL array
+ //* DEBUG-DIE: */ die(__METHOD__ . ':unlData=' . print_r($unlData, TRUE));
+ assert(isset($unlData[UniversalNodeLocator::UNL_PART_PROTOCOL]));
+ assert(isset($unlData[UniversalNodeLocator::UNL_PART_ADDRESS]));
+ assert(isset($unlData[UniversalNodeLocator::UNL_PART_PORT]));
+
+ // Get error code for first validation (0 is not an error)
+ $errorCode = socket_last_error($socketResource);
+
+ // If the error code is zero, someone called this method without an error
+ if ($errorCode == 0) {
+ // No error detected (or previously cleared outside this method)
+ throw new NoSocketErrorDetectedException(array($this, $socketResource), BaseListener::EXCEPTION_NO_SOCKET_ERROR);
+ } // END - if
+
+ // Get handler (method) name
+ $handlerName = $this->getSocketErrorHandlerFromCode($errorCode);
+
+ // Call-back the error handler method
+ call_user_func_array(array($this, $handlerName), array($socketResource, $unlData));
+
+ // Finally clear the error because it has been handled
+ socket_clear_error($socketResource);
+ }
+
+ /**
+ * Translates socket error codes into our own internal names which can be
+ * used for call-backs.
+ *
+ * @param $errorCode The error code from socket_last_error() to be translated
+ * @return $errorName The translated name (all lower-case, with underlines)
+ */
+ public function translateSocketErrorCodeToName ($errorCode) {
+ // Nothing bad happened by default
+ $errorName = BaseRawDataHandler::SOCKET_CONNECTED;
+
+ // Is the code a number, then we have to change it
+ switch ($errorCode) {
+ case 0: // Silently ignored, the socket is connected
+ break;
+
+ case 11: // "Resource temporary unavailable"
+ $errorName = BaseRawDataHandler::SOCKET_ERROR_RESOURCE_UNAVAILABLE;
+ break;
+
+ case 32: // "Broken pipe"
+ $errorName = BaseRawDataHandler::SOCKET_ERROR_BROKEN_PIPE;
+ break;
+
+ case 104: // "Connection reset by peer"
+ $errorName = BaseRawDataHandler::SOCKET_ERROR_CONNECTION_RESET_BY_PEER;
+ break;
+
+ case 107: // "Transport end-point not connected"
+ case 134: // On some (?) systems for 'transport end-point not connected'
+ // @TODO On some systems it is 134, on some 107?
+ $errorName = BaseRawDataHandler::SOCKET_ERROR_TRANSPORT_ENDPOINT;
+ break;
+
+ case 110: // "Connection timed out"
+ $errorName = BaseRawDataHandler::SOCKET_ERROR_CONNECTION_TIMED_OUT;
+ break;
+
+ case 111: // "Connection refused"
+ $errorName = BaseRawDataHandler::SOCKET_ERROR_CONNECTION_REFUSED;
+ break;
+
+ case 113: // "No route to host"
+ $errorName = BaseRawDataHandler::SOCKET_ERROR_NO_ROUTE_TO_HOST;
+ break;
+
+ case 114: // "Operation already in progress"
+ $errorName = BaseRawDataHandler::SOCKET_ERROR_OPERATION_ALREADY_PROGRESS;
+ break;
+
+ case 115: // "Operation now in progress"
+ $errorName = BaseRawDataHandler::SOCKET_ERROR_OPERATION_IN_PROGRESS;
+ break;
+
+ default: // Everything else <> 0
+ // Unhandled error code detected, so first debug it because we may want to handle it like the others
+ self::createDebugInstance(__CLASS__)->debugOutput('BASE-HUB[' . __METHOD__ . ':' . __LINE__ . '] UNKNOWN ERROR CODE = ' . $errorCode . ', MESSAGE = ' . socket_strerror($errorCode));
+
+ // Change it only in this class
+ $errorName = BaseRawDataHandler::SOCKET_ERROR_UNKNOWN;
+ break;
+ }
+
+ // Return translated name
+ return $errorName;
+ }
+
/**
* Shuts down a given socket resource. This method does only ease calling
* the right visitor.
*/
public function shutdownSocket ($socketResource) {
// Debug message
- $this->debugOutput('Shutting down socket ' . $socketResource . ' ...');
+ self::createDebugInstance(__CLASS__)->debugOutput('HUB-SYSTEM: Shutting down socket resource ' . $socketResource . ' with state ' . $this->getPrintableState() . ' ...');
// Set socket resource
$this->setSocketResource($socketResource);
// Get a visitor instance
$visitorInstance = ObjectFactory::createObjectByConfiguredName('shutdown_socket_visitor_class');
+ // Debug output
+ self::createDebugInstance(__CLASS__)->debugOutput('HUB-SYSTEM:' . $this->__toString() . ': visitorInstance=' . $visitorInstance->__toString());
+
+ // Call the visitor
+ $this->accept($visitorInstance);
+ }
+
+ /**
+ * Half-shuts down a given socket resource. This method does only ease calling
+ * an other visitor than shutdownSocket() does.
+ *
+ * @param $socketResource A valid socket resource
+ * @return void
+ */
+ public function halfShutdownSocket ($socketResource) {
+ // Debug message
+ self::createDebugInstance(__CLASS__)->debugOutput('HUB-SYSTEM: Half-shutting down socket resource ' . $socketResource . ' with state ' . $this->getPrintableState() . ' ...');
+
+ // Set socket resource
+ $this->setSocketResource($socketResource);
+
+ // Get a visitor instance
+ $visitorInstance = ObjectFactory::createObjectByConfiguredName('half_shutdown_socket_visitor_class');
+
+ // Debug output
+ self::createDebugInstance(__CLASS__)->debugOutput('HUB-SYSTEM:' . $this->__toString() . ': visitorInstance=' . $visitorInstance->__toString());
+
// Call the visitor
$this->accept($visitorInstance);
}
+
+ /**
+ * "Getter" for a printable state name
+ *
+ * @return $stateName Name of the node's state in a printable format
+ */
+ public final function getPrintableState () {
+ // Default is 'null'
+ $stateName = 'null';
+
+ // Get the state instance
+ $stateInstance = $this->getStateInstance();
+
+ // Is it an instance of Stateable?
+ if ($stateInstance instanceof Stateable) {
+ // Then use that state name
+ $stateName = $stateInstance->getStateName();
+ } // END - if
+
+ // Return result
+ return $stateName;
+ }
}
// [EOF]
projects / hub.git / blobdiff