]> git.mxchange.org Git - hub.git/blobdiff - application/hub/main/nodes/class_BaseHubNode.php
Field answer_status becomes more generic now
[hub.git] / application / hub / main / nodes / class_BaseHubNode.php
index 59c16deac7f651e9cc0ed6b18adf7c4e5a17b287..1dca6472acb233e396c83f8dd0aaddc78cacae61 100644 (file)
@@ -33,6 +33,9 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
        // Exception constants
        const EXCEPTION_HUB_ALREADY_ANNOUNCED = 0xe00;
 
+       // Other constants
+       const OBJECT_LIST_SEPARATOR = ',';
+
        /**
         * IP/port number of bootstrapping node
         */
@@ -74,6 +77,12 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                // Call parent constructor
                parent::__construct($className);
 
+               // Get a crypto instance
+               $cryptoInstance = ObjectFactory::createObjectByConfiguredName('crypto_class');
+
+               // Set it here
+               $this->setCryptoInstance($cryptoInstance);
+
                // Init state which sets the state to 'init'
                $this->initState();
        }
@@ -91,6 +100,28 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                NodeStateFactory::createNodeStateInstanceByName('init', $this);
        }
 
+       /**
+        * Generates a random string from various data inluding UUID if PECL
+        * extension uuid is installed.
+        *
+        * @param       $length                 Length of the random part
+        * @return      $randomString   Random string
+        * @todo        Make this code more generic and move it to CryptoHelper or
+        */
+       protected function generateRamdomString ($length) {
+               // Get an RNG instance
+               $rngInstance = ObjectFactory::createObjectByConfiguredName('rng_class');
+
+               // Generate a pseudo-random string
+               $randomString = $rngInstance->randomString($length) . ':' . $this->getBootIpPort() . ':' . $this->getRequestInstance()->getRequestElement('mode');
+
+               // Add UUID for even more entropy for the hasher
+               $randomString .= $this->getCryptoInstance()->createUuid();
+
+               // Return it
+               return $randomString;
+       }
+
        /**
         * Generates a private key and hashes it (for speeding up things)
         *
@@ -98,18 +129,12 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
         * @return void
         */
        private function generatePrivateKeyAndHash (LocalSearchCriteria $searchInstance) {
-               // Get an RNG instance (Random Number Generator)
-               $rngInstance = ObjectFactory::createObjectByConfiguredName('rng_class');
-
                // Generate a pseudo-random string
-               $randomString = $rngInstance->randomString(255) . ':' . $this->getBootIpPort()  . ':' . $this->getRequestInstance()->getRequestElement('mode');
-
-               // Get a crypto instance
-               $cryptoInstance = ObjectFactory::createObjectByConfiguredName('crypto_class');
+               $randomString = $this->generateRandomString(255);
 
                // Hash and encrypt the string so we become a node id (also documented as "hub id")
-               $this->setPrivateKey($cryptoInstance->encryptString($randomString));
-               $this->setPrivateKeyHash($cryptoInstance->hashString($this->getPrivateKey()));
+               $this->setPrivateKey($this->getCryptoInstance()->encryptString($randomString));
+               $this->setPrivateKeyHash($this->getCryptoInstance()->hashString($this->getPrivateKey()));
 
                // Get a wrapper instance
                $wrapperInstance = ObjectFactory::createObjectByConfiguredName('node_info_db_wrapper_class');
@@ -118,7 +143,7 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                $wrapperInstance->registerPrivateKey($this, $this->getRequestInstance(), $searchInstance);
 
                // Output message
-               $this->debugOutput('BOOTSTRAP: Created new private key with hash: ' . $this->getPrivateKeyHash() . '');
+               self::createDebugInstance(__CLASS__)->debugOutput('BOOTSTRAP: Created new private key with hash: ' . $this->getPrivateKeyHash() . '');
        }
 
        /**
@@ -192,20 +217,22 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                                $this->bootIpPort = $ipPort;
 
                                // Output message
-                               $this->debugOutput('BOOTSTRAP: ' . __FUNCTION__ . '[' . __LINE__ . ']: IP matches remote address ' . $ipPort . '.');
+                               self::createDebugInstance(__CLASS__)->debugOutput('BOOTSTRAP: ' . __FUNCTION__ . '[' . __LINE__ . ']: IP matches remote address ' . $ipPort . '.');
 
                                // Stop further searching
                                break;
                        } elseif ($ipPortArray[0] == $this->getConfigInstance()->getConfigEntry('node_listen_addr')) {
-                               // IP matches listen address. At this point we really don't care
-                               // if we can really listen on that address
+                               /*
+                                * IP matches listen address. At this point we really don't care
+                                * if we can really listen on that address
+                                */
                                $isFound = true;
 
                                // Remember the port number
                                $this->bootIpPort = $ipPort;
 
                                // Output message
-                               $this->debugOutput('BOOTSTRAP: ' . __FUNCTION__ . '[' . __LINE__ . ']: IP matches listen address ' . $ipPort . '.');
+                               self::createDebugInstance(__CLASS__)->debugOutput('BOOTSTRAP: ' . __FUNCTION__ . '[' . __LINE__ . ']: IP matches listen address ' . $ipPort . '.');
 
                                // Stop further searching
                                break;
@@ -227,14 +254,14 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                $app = $this->getApplicationInstance();
 
                // Output all lines
-               $this->debugOutput(' ');
-               $this->debugOutput($app->getAppName() . ' v' . $app->getAppVersion() . ' - ' . $this->getRequestInstance()->getRequestElement('mode') . ' mode active');
-               $this->debugOutput('Copyright (c) 2007 - 2008 Roland Haeder, 2009 - 2012 Hub Developer Team');
-               $this->debugOutput(' ');
-               $this->debugOutput('This program comes with ABSOLUTELY NO WARRANTY; for details see docs/COPYING.');
-               $this->debugOutput('This is free software, and you are welcome to redistribute it under certain');
-               $this->debugOutput('conditions; see docs/COPYING for details.');
-               $this->debugOutput(' ');
+               self::createDebugInstance(__CLASS__)->debugOutput(' ');
+               self::createDebugInstance(__CLASS__)->debugOutput($app->getAppName() . ' v' . $app->getAppVersion() . ' - ' . $this->getRequestInstance()->getRequestElement('mode') . ' mode active');
+               self::createDebugInstance(__CLASS__)->debugOutput('Copyright (c) 2007 - 2008 Roland Haeder, 2009 - 2012 Hub Developer Team');
+               self::createDebugInstance(__CLASS__)->debugOutput(' ');
+               self::createDebugInstance(__CLASS__)->debugOutput('This program comes with ABSOLUTELY NO WARRANTY; for details see docs/COPYING.');
+               self::createDebugInstance(__CLASS__)->debugOutput('This is free software, and you are welcome to redistribute it under certain');
+               self::createDebugInstance(__CLASS__)->debugOutput('conditions; see docs/COPYING for details.');
+               self::createDebugInstance(__CLASS__)->debugOutput(' ');
        }
 
        /**
@@ -270,25 +297,19 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                        $this->setNodeId($this->getField(NodeInformationDatabaseWrapper::DB_COLUMN_NODE_ID));
 
                        // Output message
-                       $this->debugOutput('BOOTSTRAP: Re-using found node-id: ' . $this->getNodeId() . '');
+                       self::createDebugInstance(__CLASS__)->debugOutput('BOOTSTRAP: Re-using found node-id: ' . $this->getNodeId() . '');
                } else {
-                       // Get an RNG instance (Random Number Generator)
-                       $rngInstance = ObjectFactory::createObjectByConfiguredName('rng_class');
-
                        // Generate a pseudo-random string
-                       $randomString = $rngInstance->randomString(255) . ':' . $this->getBootIpPort()  . ':' . $this->getRequestInstance()->getRequestElement('mode');
-
-                       // Get a crypto instance
-                       $cryptoInstance = ObjectFactory::createObjectByConfiguredName('crypto_class');
+                       $randomString = $this->generateRandomString(255);
 
                        // Hash and encrypt the string so we become a node id (also documented as "hub id")
-                       $this->setNodeId($cryptoInstance->hashString($cryptoInstance->encryptString($randomString)));
+                       $this->setNodeId($this->getCryptoInstance()->hashString($this->getCryptoInstance()->encryptString($randomString)));
 
                        // Register the node id with our wrapper
                        $wrapperInstance->registerNodeId($this, $this->getRequestInstance());
 
                        // Output message
-                       $this->debugOutput('BOOTSTRAP: Created new node-id: ' . $this->getNodeId() . '');
+                       self::createDebugInstance(__CLASS__)->debugOutput('BOOTSTRAP: Created new node-id: ' . $this->getNodeId() . '');
                }
        }
 
@@ -306,17 +327,11 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                $searchInstance->addCriteria(NodeInformationDatabaseWrapper::DB_COLUMN_NODE_TYPE, $this->getRequestInstance()->getRequestElement('mode'));
                $searchInstance->setLimit(1);
 
-               // Get an RNG instance
-               $rngInstance = ObjectFactory::createObjectByConfiguredName('rng_class');
-
-               // Generate a pseudo-random string
-               $randomString = $rngInstance->randomString(255) . ':' . $this->getBootIpPort() . ':' . $this->getRequestInstance()->getRequestElement('mode');
-
-               // Get a crypto instance
-               $cryptoInstance = ObjectFactory::createObjectByConfiguredName('crypto_class');
+               // Get a random string
+               $randomString = $this->generateRamdomString(255);
 
                // Hash and encrypt the string so we become a "node id" aka Hub-Id
-               $this->setSessionId($cryptoInstance->hashString($cryptoInstance->encryptString($randomString)));
+               $this->setSessionId($this->getCryptoInstance()->hashString($this->getCryptoInstance()->encryptString($randomString)));
 
                // Get a wrapper instance
                $wrapperInstance = ObjectFactory::createObjectByConfiguredName('node_info_db_wrapper_class');
@@ -325,7 +340,7 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                $wrapperInstance->registerSessionId($this, $this->getRequestInstance(), $searchInstance);
 
                // Output message
-               $this->debugOutput('BOOTSTRAP: Created new session-id: ' . $this->getSessionId() . '');
+               self::createDebugInstance(__CLASS__)->debugOutput('BOOTSTRAP: Created new session-id: ' . $this->getSessionId() . '');
 
                // Change the state because the node has auired a hub id
                $this->getStateInstance()->nodeGeneratedSessionId();
@@ -366,11 +381,11 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                                $this->generatePrivateKeyAndHash($searchInstance);
                        } else {
                                // Get the node id from result and set it
-                               $this->setPrivateKey($this->getField(NodeInformationDatabaseWrapper::DB_COLUMN_PRIVATE_KEY));
+                               $this->setPrivateKey(base64_decode($this->getField(NodeInformationDatabaseWrapper::DB_COLUMN_PRIVATE_KEY)));
                                $this->setPrivateKeyHash($this->getField(NodeInformationDatabaseWrapper::DB_COLUMN_PRIVATE_KEY_HASH));
 
                                // Output message
-                               $this->debugOutput('BOOTSTRAP: Re-using found private key hash: ' . $this->getPrivateKeyHash() . '');
+                               self::createDebugInstance(__CLASS__)->debugOutput('BOOTSTRAP: Re-using found private key hash: ' . $this->getPrivateKeyHash() . '');
                        }
                } else {
                        /*
@@ -388,7 +403,7 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
         */
        protected function initGenericQueues () {
                // Debug message
-               $this->debugOutput('BOOTSTRAP: Initialize queues: START');
+               self::createDebugInstance(__CLASS__)->debugOutput('BOOTSTRAP: Initialize queues: START');
 
                // Set the query connector instance
                $this->setQueryConnectorInstance(ObjectFactory::createObjectByConfiguredName('query_connector_class', array($this)));
@@ -403,7 +418,7 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                $this->getQueueConnectorInstance()->doTestQueue();
 
                // Debug message
-               $this->debugOutput('BOOTSTRAP: Initialize queues: FINISHED');
+               self::createDebugInstance(__CLASS__)->debugOutput('BOOTSTRAP: Initialize queues: FINISHED');
        }
 
        /**
@@ -428,7 +443,7 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
 
                // Add the private key if acquired
                if ($this->getPrivateKey() != '') {
-                       $criteriaInstance->addCriteria(NodeInformationDatabaseWrapper::DB_COLUMN_PRIVATE_KEY, $this->getPrivateKey());
+                       $criteriaInstance->addCriteria(NodeInformationDatabaseWrapper::DB_COLUMN_PRIVATE_KEY, base64_encode($this->getPrivateKey()));
                        $criteriaInstance->addCriteria(NodeInformationDatabaseWrapper::DB_COLUMN_PRIVATE_KEY_HASH, $this->getPrivateKeyHash());
                } // END - if
        }
@@ -479,24 +494,24 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
         *
         * @param       $taskInstance   The task instance running this announcement
         * @return      void
-        * @throws      HubAlreadyAnnouncedException    If this hub is already announced
+        * @throws      NodeAlreadyAnnouncedException   If this hub is already announced
         * @todo        Change the first if() block to check for a specific state
         */
        public function announceSelfToUpperNodes (Taskable $taskInstance) {
                // Is this hub node announced?
                if ($this->hubIsAnnounced === true) {
                        // Already announced!
-                       throw new HubAlreadyAnnouncedException($this, self::EXCEPTION_HUB_ALREADY_ANNOUNCED);
+                       throw new NodeAlreadyAnnouncedException($this, self::EXCEPTION_HUB_ALREADY_ANNOUNCED);
                } // END - if
 
                // Debug output
-               $this->debugOutput('HUB-Announcement: START (taskInstance=' . $taskInstance->__toString(). ')');
+               self::createDebugInstance(__CLASS__)->debugOutput('HUB-Announcement: START (taskInstance=' . $taskInstance->__toString(). ')');
 
                // Get a helper instance
                $helperInstance = ObjectFactory::createObjectByConfiguredName('hub_announcement_helper_class');
 
                // Load the announcement descriptor
-               $helperInstance->loadDescriptorXml();
+               $helperInstance->loadDescriptorXml($this);
 
                // Compile all variables
                $helperInstance->getTemplateInstance()->compileConfigInVariables();
@@ -508,7 +523,7 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                $this->getStateInstance()->nodeAnnouncedToUpperHubs();
 
                // Debug output
-               $this->debugOutput('HUB-Announcement: FINISHED');
+               self::createDebugInstance(__CLASS__)->debugOutput('HUB-Announcement: FINISHED');
        }
 
        /**
@@ -521,13 +536,13 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
         */
        public function doSelfConnection (Taskable $taskInstance) {
                // Debug output
-               $this->debugOutput('HUB: Self Connection: START (taskInstance=' . $taskInstance->__toString(). ')');
+               self::createDebugInstance(__CLASS__)->debugOutput('HUB: Self Connection: START (taskInstance=' . $taskInstance->__toString(). ')');
 
                // Get a helper instance
                $helperInstance = ObjectFactory::createObjectByConfiguredName('hub_self_connect_helper_class', array($this));
 
                // Load the descriptor (XML) file
-               $helperInstance->loadDescriptorXml();
+               $helperInstance->loadDescriptorXml($this);
 
                // Compile all variables
                $helperInstance->getTemplateInstance()->compileConfigInVariables();
@@ -536,7 +551,7 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                $helperInstance->sendPackage($this);
 
                // Debug output
-               $this->debugOutput('HUB: Self Connection: FINISHED');
+               self::createDebugInstance(__CLASS__)->debugOutput('HUB: Self Connection: FINISHED');
        }
 
        /**
@@ -574,7 +589,7 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
         */
        public function initializeListenerPool () {
                // Debug output
-               $this->debugOutput('HUB: Initialize listener: START');
+               self::createDebugInstance(__CLASS__)->debugOutput('HUB: Initialize listener: START');
 
                // Get a new pool instance
                $this->setListenerPoolInstance(ObjectFactory::createObjectByConfiguredName('listener_pool_class', array($this)));
@@ -634,7 +649,7 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                $this->getListenerPoolInstance()->addListener($decoratorInstance);
 
                // Debug output
-               $this->debugOutput('HUB: Initialize listener: FINISHED.');
+               self::createDebugInstance(__CLASS__)->debugOutput('HUB: Initialize listener: FINISHED.');
        }
 
        /**
@@ -644,7 +659,7 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
         */
        public function bootstrapRestoreNodeList () {
                // Debug output
-               $this->debugOutput('HUB: Restore node list: START');
+               self::createDebugInstance(__CLASS__)->debugOutput('HUB: Restore node list: START');
 
                // Get a wrapper instance
                $wrapperInstance = ObjectFactory::createObjectByConfiguredName('node_list_db_wrapper_class');
@@ -665,14 +680,14 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
                if ($resultInstance->next()) {
                        $this->partialStub('Do something for restoring the list.');
                        // Output message
-                       //$this->debugOutput('HUB: ');
+                       //self::createDebugInstance(__CLASS__)->debugOutput('HUB: ');
                } else {
                        // No previously saved node list found!
-                       $this->debugOutput('HUB: No previously saved node list found. This is fine.');
+                       self::createDebugInstance(__CLASS__)->debugOutput('HUB: No previously saved node list found. This is fine.');
                }
 
                // Debug output
-               $this->debugOutput('HUB: Restore node list: FINISHED.');
+               self::createDebugInstance(__CLASS__)->debugOutput('HUB: Restore node list: FINISHED.');
        }
 
        /**
@@ -711,15 +726,42 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
         * Checks whether this node has attempted to announce itself
         *
         * @return      $hasAnnounced   Whether this node has attempted to announce itself
+        * @todo        Add checking if this node has been announced to the sender node
         */
        public function ifNodeHasAnnounced () {
+               // Debug message
+               /* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NODE: ifNodeHasAnnounced(): state=' . $this->getStateInstance()->getStateName());
+
                // Simply check the state of this node
                $hasAnnounced = ($this->getStateInstance() instanceof NodeAnnouncedState);
 
+               // Debug message
+               /* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NODE: ifNodeHasAnnounced(): hasAnnounced=' . intval($hasAnnounced));
+
                // Return it
                return $hasAnnounced;
        }
 
+       /**
+        * Checks whether this node has attempted to announce itself and completed it
+        *
+        * @return      $hasAnnouncementCompleted       Whether this node has attempted to announce itself and completed it
+        * @todo        Add checking if this node has been announced to the sender node
+        */
+       public function ifNodeHasAnnouncementCompleted () {
+               // Debug message
+               /* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NODE: ifNodeHasAnnouncementCompleted(): state=' . $this->getStateInstance()->getStateName());
+
+               // Simply check the state of this node
+               $hasAnnouncementCompleted = ($this->getStateInstance() instanceof NodeAnnouncementCompletedState);
+
+               // Debug message
+               /* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NODE: ifNodeHasAnnouncementCompleted(): hasAnnouncementCompleted=' . intval($hasAnnouncementCompleted));
+
+               // Return it
+               return $hasAnnouncementCompleted;
+       }
+
        /**
         * Enables whether this node accepts announcements
         *
@@ -729,12 +771,28 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
        protected final function enableAcceptingAnnouncements ($acceptAnnouncements = true) {
                $this->acceptAnnouncements = $acceptAnnouncements;
        }
-       
-       
+
+       /**
+        * Checks wether this node is accepting node-list requests
+        *
+        * @return      $acceptsRequest         Wether this node accepts node-list requests
+        */
+       public function isAcceptingNodeListRequests () {
+               /*
+                * Only 'regular' nodes does not accept such requests, checking
+                * HubRegularNode is faster, but if e.g. HubRegularI2PNode will be
+                * added then the next check will be true.
+                */
+               $acceptsRequest = ((!$this instanceof HubRegularNode) && ($this->getRequestInstance()->getRequestElement('mode') != self::NODE_TYPE_REGULAR));
+
+               // Return it
+               return $acceptsRequest;
+       }
+
        /**
-        * "Getter for address:port combination
+        * "Getter" for address:port combination
         *
-        * @param       $handlerInstance        A valid Networkable instance
+        * @param       $handlerInstance        An instance of a Networkable class
         * @return      $addressPort            A address:port combination for this node
         */
        public final function getAddressPort (Networkable $handlerInstance) {
@@ -749,7 +807,7 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
        }
 
        /**
-        * Updates/refreshes node data (e.g. state).
+        * Updates/refreshes node data (e.g. status).
         *
         * @return      void
         * @todo        Find more to do here
@@ -762,11 +820,39 @@ class BaseHubNode extends BaseHubSystem implements Updateable {
        /**
         * Handles message answer by given data array
         *
-        * @param       $messageData    A valid answer message data array
+        * @param       $messageData            A valid answer message data array
+        * @param       $packageInstance        An instance of a Receivable class
         * @return      void
+        * @todo        Handle thrown exception
         */
-       public function handleAnswerStatusByMessageData (array $messageData) {
-               die('messageData=' . print_r($messageData, true));
+       public function handleAnswerStatusByMessageData (array $messageData, Receivable $packageInstance) {
+               // Is it not empty?
+               assert(!empty($messageData[NetworkPackage::MESSAGE_DATA_ANSWER_STATUS]));
+
+               // Construct configuration entry for handling class' name
+               $classConfigEntry = strtolower($messageData[NetworkPackage::MESSAGE_ARRAY_TYPE] . '_status_' . $messageData[NetworkPackage::MESSAGE_DATA_ANSWER_STATUS]) . '_handler_class';
+
+               // Try to get a class
+               $handlerInstance = ObjectFactory::createObjectByConfiguredName($classConfigEntry);
+
+               // Handle it there
+               $handlerInstance->handleAnswerMessageData($messageData, $packageInstance);
+       }
+
+       /**
+        * "Getter" for an array of all accepted object types
+        *
+        * @return      $objectList             Array of all accepted object types
+        */
+       public function getListFromAcceptedObjectTypes () {
+               // Get registry instance
+               $objectRegistryInstance = ObjectTypeRegistryFactory::createObjectTypeRegistryInstance();
+
+               // Get all entries
+               $objectList = $objectRegistryInstance->getEntries(XmlObjectRegistryTemplateEngine::OBJECT_TYPE_DATA_NAME);
+
+               // ... and return it
+               return $objectList;
        }
 }