]> git.mxchange.org Git - hub.git/blobdiff - application/hub/main/package/class_NetworkPackage.php
Also this ... :-(
[hub.git] / application / hub / main / package / class_NetworkPackage.php
index c646ba0a79bc7e4cddb61b2fc5578819f6cdd496..1fb38d160c5410c96559f393699bc8673f5711b2 100644 (file)
  * For performance reasons, this class should only be instanciated once and then
  * used as a "pipe-through" 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 - 2012 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
  * @todo               Needs to add functionality for handling the object's type
  *
  * This program is free software: you can redistribute it and/or modify
@@ -77,12 +77,12 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
        const INDEX_PACKAGE_RECIPIENT = 1;
        const INDEX_PACKAGE_CONTENT   = 2;
        const INDEX_PACKAGE_STATUS    = 3;
-       const INDEX_PACKAGE_SIGNATURE = 4;
+       const INDEX_PACKAGE_HASH      = 4;
 
        /**
-        * Size of the decoded data array ('status' is not included)
+        * Size of the decoded data array
         */
-       const DECODED_DATA_ARRAY_SIZE = 4;
+       const DECODED_DATA_ARRAY_SIZE = 5;
 
        /**
         * Named array elements for decoded package content
@@ -91,16 +91,17 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
        const PACKAGE_CONTENT_MESSAGE   = 'message';
        const PACKAGE_CONTENT_TAGS      = 'tags';
        const PACKAGE_CONTENT_CHECKSUM  = 'checksum';
+       const PACKAGE_CONTENT_SENDER    = 'sender';
+       const PACKAGE_CONTENT_HASH      = 'hash';
 
        /**
         * Named array elements for package data
         */
        const PACKAGE_DATA_SENDER    = 'sender';
        const PACKAGE_DATA_RECIPIENT = 'recipient';
-       const PACKAGE_DATA_PROTOCOL  = 'protocol';
        const PACKAGE_DATA_CONTENT   = 'content';
        const PACKAGE_DATA_STATUS    = 'status';
-       const PACKAGE_DATA_SIGNATURE = 'signature';
+       const PACKAGE_DATA_HASH      = 'hash';
 
        /**
         * All package status
@@ -119,7 +120,6 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
        /**
         * Generic answer status field
         */
-       const MESSAGE_DATA_ANSWER_STATUS = 'answer_status';
 
        /**
         * Tags separator
@@ -139,13 +139,18 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
        /**
         * Network target (alias): 'upper nodes'
         */
-       const NETWORK_TARGET_UPPER_NODES = 'upper';
+       const NETWORK_TARGET_UPPER = 'upper';
 
        /**
         * Network target (alias): 'self'
         */
        const NETWORK_TARGET_SELF = 'self';
 
+       /**
+        * Network target (alias): 'dht'
+        */
+       const NETWORK_TARGET_DHT = 'dht';
+
        /**
         * TCP package size in bytes
         */
@@ -204,13 +209,43 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
        const STACKER_NAME_PROCESSED_MESSAGE = 'package_processed_message';
 
        /**************************************************************************
-        *                   Stacker for other/internal purposes                  *
+        *                      Stacker for raw data handling                     *
         **************************************************************************/
 
        /**
-        * Stacker name for "back-buffered" packages
+        * Stacker for outgoing data stream
+        */
+       const STACKER_NAME_OUTGOING_STREAM = 'outgoing_stream';
+
+       /**
+        * Array index for final hash
+        */
+       const RAW_FINAL_HASH_INDEX = 'hash';
+
+       /**
+        * Array index for encoded data
         */
-       const STACKER_NAME_BACK_BUFFER = 'package_backbuffer';
+       const RAW_ENCODED_DATA_INDEX = 'data';
+
+       /**
+        * Array index for sent bytes
+        */
+       const RAW_SENT_BYTES_INDEX = 'sent';
+
+       /**
+        * Array index for socket resource
+        */
+       const RAW_SOCKET_INDEX = 'socket';
+
+       /**
+        * Array index for buffer size
+        */
+       const RAW_BUFFER_SIZE_INDEX = 'buffer';
+
+       /**
+        * Array index for diff between buffer and sent bytes
+        */
+       const RAW_DIFF_INDEX = 'diff';
 
        /**************************************************************************
         *                            Protocol names                              *
@@ -246,16 +281,16 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                 * which have no recipient address and stamp... ;-) This stacker will
                 * also be used for incoming raw data to handle it.
                 */
-               $stackerInstance = ObjectFactory::createObjectByConfiguredName('network_package_stacker_class');
+               $stackInstance = ObjectFactory::createObjectByConfiguredName('network_package_stacker_class');
 
                // At last, set it in this class
-               $packageInstance->setStackerInstance($stackerInstance);
+               $packageInstance->setStackInstance($stackInstance);
 
                // Init all stacker
-               $packageInstance->initStackers();
+               $packageInstance->initStacks();
 
                // Get a visitor instance for speeding up things and set it
-               $visitorInstance = ObjectFactory::createObjectByConfiguredName('node_raw_data_monitor_visitor_class', array($packageInstance));
+               $visitorInstance = ObjectFactory::createObjectByConfiguredName('node_raw_data_monitor_visitor_class');
                $packageInstance->setVisitorInstance($visitorInstance);
 
                // Get crypto instance and set it, too
@@ -266,6 +301,15 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                $assemblerInstance = PackageAssemblerFactory::createAssemblerInstance($packageInstance);
                $packageInstance->setAssemblerInstance($assemblerInstance);
 
+               // Get node instance
+               $nodeInstance = NodeObjectFactory::createNodeInstance();
+
+               // Get pool instance from node
+               $poolInstance = $nodeInstance->getListenerPoolInstance();
+
+               // And set it here
+               $packageInstance->setListenerPoolInstance($poolInstance);
+
                // Return the prepared instance
                return $packageInstance;
        }
@@ -276,23 +320,49 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         * @param       $forceReInit    Whether to force reinitialization of all stacks
         * @return      void
         */
-       protected function initStackers ($forceReInit = false) {
+       protected function initStacks ($forceReInit = FALSE) {
                // Initialize all
-               foreach (
-                       array(
-                               self::STACKER_NAME_UNDECLARED,
-                               self::STACKER_NAME_DECLARED,
-                               self::STACKER_NAME_OUTGOING,
-                               self::STACKER_NAME_DECODED_INCOMING,
-                               self::STACKER_NAME_DECODED_HANDLED,
-                               self::STACKER_NAME_DECODED_CHUNKED,
-                               self::STACKER_NAME_NEW_MESSAGE,
-                               self::STACKER_NAME_PROCESSED_MESSAGE,
-                               self::STACKER_NAME_BACK_BUFFER
-                       ) as $stackerName) {
-                               // Init this stacker
-                               $this->getStackerInstance()->initStacker($stackerName, $forceReInit);
-               } // END - foreach
+               $this->getStackInstance()->initStacks(array(
+                       self::STACKER_NAME_UNDECLARED,
+                       self::STACKER_NAME_DECLARED,
+                       self::STACKER_NAME_OUTGOING,
+                       self::STACKER_NAME_DECODED_INCOMING,
+                       self::STACKER_NAME_DECODED_HANDLED,
+                       self::STACKER_NAME_DECODED_CHUNKED,
+                       self::STACKER_NAME_NEW_MESSAGE,
+                       self::STACKER_NAME_PROCESSED_MESSAGE,
+                       self::STACKER_NAME_OUTGOING_STREAM
+               ), $forceReInit);
+       }
+
+       /**
+        * Determines private key hash from given session id
+        *
+        * @param       $decodedData    Array with decoded data
+        * @return      $hash                   Private key's hash
+        */
+       private function determineSenderPrivateKeyHash (array $decodedData) {
+               // Get DHT instance
+               $dhtInstance = DhtObjectFactory::createDhtInstance('node');
+
+               // Ask DHT for session id
+               $senderData = $dhtInstance->findNodeLocalBySessionId($decodedData[self::INDEX_PACKAGE_SENDER]);
+
+               // Is an entry found?
+               if (count($senderData) > 0) {
+                       // Make sure the element 'private_key_hash' is there
+                       /* NOISY-DEBUG */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: senderData=' . print_r($senderData, TRUE));
+                       assert(isset($senderData[NodeDistributedHashTableDatabaseWrapper::DB_COLUMN_PRIVATE_KEY_HASH]));
+
+                       // Return it
+                       return $senderData[NodeDistributedHashTableDatabaseWrapper::DB_COLUMN_PRIVATE_KEY_HASH];
+               } // END - if
+
+               // Make sure the requested element is there
+               assert(isset($decodedData[self::INDEX_PACKAGE_HASH]));
+
+               // There is no DHT entry so, accept the hash from decoded data
+               return $decodedData[self::INDEX_PACKAGE_HASH];
        }
 
        /**
@@ -303,11 +373,11 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        private function getHashFromContent ($content) {
                // Debug message
-               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: content[md5]=' . md5($content) . ',sender=' . $this->getSessionId() . ',compressor=' . $this->getCompressorInstance()->getCompressorExtension());
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: content[md5]=' . md5($content) . ',sender=' . $this->getSessionId() . ',compressor=' . $this->getCompressorInstance()->getCompressorExtension());
 
                // Create the hash
-               // @TODO crc32() is very weak, but it needs to be fast
-               $hash = crc32(
+               // @TODO md5() is very weak, but it needs to be fast
+               $hash = md5(
                        $content .
                        self::PACKAGE_CHECKSUM_SEPARATOR .
                        $this->getSessionId() .
@@ -315,6 +385,9 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                        $this->getCompressorInstance()->getCompressorExtension()
                );
 
+               // Debug message
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: content[md5]=' . md5($content) . ',sender=' . $this->getSessionId() . ',hash=' . $hash . ',compressor=' . $this->getCompressorInstance()->getCompressorExtension());
+
                // And return it
                return $hash;
        }
@@ -347,22 +420,22 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        private function changePackageStatus (array $packageData, $stackerName, $newStatus) {
                // Skip this for empty stacks
-               if ($this->getStackerInstance()->isStackEmpty($stackerName)) {
+               if ($this->getStackInstance()->isStackEmpty($stackerName)) {
                        // This avoids an exception after all packages has failed
                        return;
                } // END - if
 
                // Pop the entry (it should be it)
-               $nextData = $this->getStackerInstance()->popNamed($stackerName);
+               $nextData = $this->getStackInstance()->popNamed($stackerName);
 
-               // Compare both signatures
-               assert($nextData[self::PACKAGE_DATA_SIGNATURE] == $packageData[self::PACKAGE_DATA_SIGNATURE]);
+               // Compare both hashes
+               assert($nextData[self::PACKAGE_DATA_HASH] == $packageData[self::PACKAGE_DATA_HASH]);
 
                // Temporary set the new status
                $packageData[self::PACKAGE_DATA_STATUS] = $newStatus;
 
                // And push it again
-               $this->getStackerInstance()->pushNamed($stackerName, $packageData);
+               $this->getStackInstance()->pushNamed($stackerName, $packageData);
        }
 
        /**
@@ -374,11 +447,11 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        public function getHashFromContentSessionId (array $decodedContent, $sessionId) {
                // Debug message
-               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: content[md5]=' . md5($decodedContent[self::PACKAGE_CONTENT_MESSAGE]) . ',sender=' . $sessionId . ',compressor=' . $decodedContent[self::PACKAGE_CONTENT_EXTENSION]);
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: content[md5]=' . md5($decodedContent[self::PACKAGE_CONTENT_MESSAGE]) . ',sender=' . $sessionId . ',compressor=' . $decodedContent[self::PACKAGE_CONTENT_EXTENSION]);
 
                // Create the hash
-               // @TODO crc32() is very weak, but it needs to be fast
-               $hash = crc32(
+               // @TODO md5() is very weak, but it needs to be fast
+               $hash = md5(
                        $decodedContent[self::PACKAGE_CONTENT_MESSAGE] .
                        self::PACKAGE_CHECKSUM_SEPARATOR .
                        $sessionId .
@@ -395,12 +468,15 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
        ///////////////////////////////////////////////////////////////////////////
 
        /**
-        * Delivers the given raw package data.
+        * Declares the given raw package data by discovering recipients
         *
         * @param       $packageData    Raw package data in an array
         * @return      void
         */
        private function declareRawPackageData (array $packageData) {
+               // Make sure the required field is there
+               assert(isset($packageData[self::PACKAGE_DATA_RECIPIENT]));
+
                /*
                 * We need to disover every recipient, just in case we have a
                 * multi-recipient entry like 'upper' is. 'all' may be a not so good
@@ -415,6 +491,9 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                // Now get an iterator
                $iteratorInstance = $discoveryInstance->getIterator();
 
+               // Make sure the iterator instance is valid
+               assert($iteratorInstance instanceof Iterator);
+
                // Rewind back to the beginning
                $iteratorInstance->rewind();
 
@@ -424,16 +503,16 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                        $currentRecipient = $iteratorInstance->current();
 
                        // Debug message
-                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: Setting recipient to ' . $currentRecipient . ',previous=' . $packageData[self::PACKAGE_DATA_RECIPIENT]);
+                       /* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Setting recipient to ' . $currentRecipient . ',previous=' . $packageData[self::PACKAGE_DATA_RECIPIENT]);
 
                        // Set the recipient
                        $packageData[self::PACKAGE_DATA_RECIPIENT] = $currentRecipient;
 
-                       // And enqueue it to the writer class
-                       $this->getStackerInstance()->pushNamed(self::STACKER_NAME_DECLARED, $packageData);
+                       // Push the declared package to the next stack.
+                       $this->getStackInstance()->pushNamed(self::STACKER_NAME_DECLARED, $packageData);
 
                        // Debug message
-                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: Package declared for recipient ' . $currentRecipient);
+                       /* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Package declared for recipient ' . $currentRecipient);
 
                        // Skip to next entry
                        $iteratorInstance->next();
@@ -475,47 +554,56 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                $socketResource = $discoveryInstance->discoverSocket($packageData, BaseConnectionHelper::CONNECTION_TYPE_OUTGOING);
 
                // Debug message
-               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: Reached line ' . __LINE__ . ' after discoverSocket() has been called.');
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Reached line ' . __LINE__ . ' after discoverSocket() has been called.');
+
+               // Debug message
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: stateInstance=' . $helperInstance->getStateInstance());
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Reached line ' . __LINE__ . ' before isSocketRegistered() has been called.');
 
-               // We have to put this socket in our registry, so get an instance
+               // The socket needs to be put in a special registry that can handle such data
                $registryInstance = SocketRegistryFactory::createSocketRegistryInstance();
 
-               // Get the listener from registry
+               // Get the connection helper from registry
                $helperInstance = Registry::getRegistry()->getInstance('connection');
 
-               // Debug message
-               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: stateInstance=' . $helperInstance->getStateInstance());
-               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: Reached line ' . __LINE__ . ' before isSocketRegistered() has been called.');
+               // And make sure it is valid
+               assert($helperInstance instanceof ConnectionHelper);
+
+               // Get connection info class
+               $infoInstance = ConnectionInfoFactory::createConnectionInfoInstance($helperInstance->getProtocolName(), 'helper');
+
+               // Will the info instance with connection helper data
+               $infoInstance->fillWithConnectionHelperInformation($helperInstance);
 
                // Is it not there?
-               if ((is_resource($socketResource)) && (!$registryInstance->isSocketRegistered($helperInstance, $socketResource))) {
+               if ((is_resource($socketResource)) && (!$registryInstance->isSocketRegistered($infoInstance, $socketResource))) {
                        // Debug message
-                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: Registering socket ' . $socketResource . ' ...');
+                       //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Registering socket ' . $socketResource . ' ...');
 
                        // Then register it
-                       $registryInstance->registerSocket($helperInstance, $socketResource, $packageData);
+                       $registryInstance->registerSocket($infoInstance, $socketResource, $packageData);
                } elseif (!$helperInstance->getStateInstance()->isPeerStateConnected()) {
                        // Is not connected, then we cannot send
-                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: Unexpected peer state ' . $helperInstance->getStateInstance()->__toString() . ' detected.');
+                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Unexpected peer state ' . $helperInstance->getStateInstance()->__toString() . ' detected.');
 
                        // Shutdown the socket
                        $this->shutdownSocket($socketResource);
                }
 
                // Debug message
-               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: Reached line ' . __LINE__ . ' after isSocketRegistered() has been called.');
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Reached line ' . __LINE__ . ' after isSocketRegistered() has been called.');
 
                // Make sure the connection is up
                $helperInstance->getStateInstance()->validatePeerStateConnected();
 
                // Debug message
-               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: Reached line ' . __LINE__ . ' after validatePeerStateConnected() has been called.');
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Reached line ' . __LINE__ . ' after validatePeerStateConnected() has been called.');
 
                // Enqueue it again on the out-going queue, the connection is up and working at this point
-               $this->getStackerInstance()->pushNamed(self::STACKER_NAME_OUTGOING, $packageData);
+               $this->getStackInstance()->pushNamed(self::STACKER_NAME_OUTGOING, $packageData);
 
                // Debug message
-               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: Reached line ' . __LINE__ . ' after pushNamed() has been called.');
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Reached line ' . __LINE__ . ' after pushNamed() has been called.');
        }
 
        /**
@@ -529,7 +617,18 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                $sentBytes = 0;
 
                // Get the right connection instance
-               $helperInstance = SocketRegistryFactory::createSocketRegistryInstance()->getHandlerInstanceFromPackageData($packageData);
+               $infoInstance = SocketRegistryFactory::createSocketRegistryInstance()->getInfoInstanceFromPackageData($packageData);
+
+               // Test helper instance
+               assert($infoInstance instanceof ShareableInfo);
+
+               // Get helper instance
+               $helperInstance = $infoInstance->getHelperInstance();
+
+               // Some sanity-checks on the object
+               //* DEBUG-DIE: */ die('[' . __METHOD__ . ':' . __LINE__ . ']: p1=' . $infoInstance->getProtocolName() . ',p2=' . $helperInstance->getProtocolName() . ',infoInstance=' . print_r($infoInstance, TRUE));
+               assert($helperInstance instanceof ConnectionHelper);
+               assert($infoInstance->getProtocolName() == $helperInstance->getProtocolName());
 
                // Is this connection still alive?
                if ($helperInstance->isShuttedDown()) {
@@ -539,48 +638,46 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                } // END - if
 
                // Sent out package data
-               $sentBytes = $helperInstance->sendRawPackageData($packageData);
-
-               // Remember unsent raw bytes in back-buffer, if any
-               $this->storeUnsentBytesInBackBuffer($packageData, $sentBytes);
+               $helperInstance->sendRawPackageData($packageData);
        }
 
        /**
-        * Generates a signature for given raw package content and sender id
+        * Generates a secure hash for given raw package content and sender id
         *
         * @param       $content        Raw package data
-        * @param       $senderId       Sender id to generate a signature for
-        * @return      $signature      Signature as BASE64-encoded string
+        * @param       $senderId       Sender id to generate a hash for
+        * @return      $hash   Hash as hex-encoded string
         */
-       private function generatePackageSignature ($content, $senderId) {
-               // Hash content and sender id together, use md5() as last algo
-               $hash = md5($this->getCryptoInstance()->hashString($senderId . $content, $this->getPrivateKey(), false));
-
-               // Encrypt the content again with the hash as a key
-               $encryptedContent = $this->getCryptoInstance()->encryptString($content, $hash);
-
-               // Encode it with BASE64
-               $signature = base64_encode($encryptedContent);
+       private function generatePackageHash ($content, $senderId) {
+               // Fake array
+               $data = array(
+                       self::INDEX_PACKAGE_SENDER  => $senderId,
+                       self::INDEX_PACKAGE_CONTENT => $content,
+                       self::INDEX_PACKAGE_HASH    => ''
+               );
+       
+               // Hash content and sender id together, use scrypt
+               $hash = Scrypt::hashScrypt($senderId . ':' . $content . ':' . $this->determineSenderPrivateKeyHash($data));
 
                // Return it
-               return $signature;
+               return $hash;
        }
 
        /**
-        * Checks whether the signature of given package data is 'valid', here that
+        * Checks whether the hash of given package data is 'valid', here that
         * means it is the same or not.
         *
         * @param       $decodedArray           An array with 'decoded' (explode() was mostly called) data
-        * @return      $isSignatureValid       Whether the signature is valid
-        * @todo        Unfinished area, signatures are currently NOT fully supported
+        * @return      $isHashValid    Whether the hash is valid
+        * @todo        Unfinished area, hashes are currently NOT fully supported
         */
-       private function isPackageSignatureValid (array $decodedArray) {
-               // Generate the signature of comparing it
-               $signature = $this->generatePackageSignature($decodedArray[self::INDEX_PACKAGE_CONTENT], $decodedArray[self::INDEX_PACKAGE_SENDER]);
+       private function isPackageHashValid (array $decodedArray) {
+               // Check validity
+               $isHashValid = Scrypt::checkScrypt($decodedArray[self::INDEX_PACKAGE_SENDER] . ':' . $decodedArray[self::INDEX_PACKAGE_CONTENT] . ':' . $this->determineSenderPrivateKeyHash($decodedArray));
 
-               // Is it the same?
-               //$isSignatureValid = 
-               exit(__METHOD__.': signature='.$signature.chr(10).',decodedArray='.print_r($decodedArray,true));
+               // Return it
+               //* DEBUG-DIE: */ die(__METHOD__ . ': isHashValid=' . intval($isHashValid) . chr(10) . ',decodedArray=' . print_r($decodedArray, TRUE));
+               return $isHashValid;
        }
 
        /**
@@ -588,11 +685,13 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         * from given helper's template instance and pushing it on the 'undeclared'
         * stack.
         *
-        * @param       $helperInstance         An instance of a HelpableHub class
-        * @param       $protocol                       Name of used protocol (TCP/UDP)
+        * @param       $helperInstance         An instance of a HubHelper class
         * @return      void
         */
-       public function enqueueRawDataFromTemplate (HelpableHub $helperInstance, $protocolName) {
+       public function enqueueRawDataFromTemplate (HubHelper $helperInstance) {
+               // Debug message
+               //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ': CALLED!');
+
                // Get the raw content ...
                $content = $helperInstance->getTemplateInstance()->getRawTemplateData();
                //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('content(' . strlen($content) . ')=' . $content);
@@ -618,15 +717,20 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                        $this->getHashFromContent($content)
                );
 
+               // Debug message
+               //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ': Enqueueing package for recipientType=' . $helperInstance->getRecipientType() . ' ...');
+
                // Now prepare the temporary array and push it on the 'undeclared' stack
-               $this->getStackerInstance()->pushNamed(self::STACKER_NAME_UNDECLARED, array(
+               $this->getStackInstance()->pushNamed(self::STACKER_NAME_UNDECLARED, array(
                        self::PACKAGE_DATA_SENDER    => $this->getSessionId(),
                        self::PACKAGE_DATA_RECIPIENT => $helperInstance->getRecipientType(),
-                       self::PACKAGE_DATA_PROTOCOL  => $protocolName,
                        self::PACKAGE_DATA_CONTENT   => $packageContent,
                        self::PACKAGE_DATA_STATUS    => self::PACKAGE_STATUS_NEW,
-                       self::PACKAGE_DATA_SIGNATURE => $this->generatePackageSignature($packageContent, $this->getSessionId())
+                       self::PACKAGE_DATA_HASH      => $this->generatePackageHash($packageContent, $this->getSessionId())
                ));
+
+               // Debug message
+               //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ': EXIT!');
        }
 
        /**
@@ -636,7 +740,7 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        public function isPackageEnqueued () {
                // Check whether the stacker is not empty
-               $isEnqueued = (($this->getStackerInstance()->isStackInitialized(self::STACKER_NAME_UNDECLARED)) && (!$this->getStackerInstance()->isStackEmpty(self::STACKER_NAME_UNDECLARED)));
+               $isEnqueued = (($this->getStackInstance()->isStackInitialized(self::STACKER_NAME_UNDECLARED)) && (!$this->getStackInstance()->isStackEmpty(self::STACKER_NAME_UNDECLARED)));
 
                // Return the result
                return $isEnqueued;
@@ -649,7 +753,7 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        public function isPackageDeclared () {
                // Check whether the stacker is not empty
-               $isDeclared = (($this->getStackerInstance()->isStackInitialized(self::STACKER_NAME_DECLARED)) && (!$this->getStackerInstance()->isStackEmpty(self::STACKER_NAME_DECLARED)));
+               $isDeclared = (($this->getStackInstance()->isStackInitialized(self::STACKER_NAME_DECLARED)) && (!$this->getStackInstance()->isStackEmpty(self::STACKER_NAME_DECLARED)));
 
                // Return the result
                return $isDeclared;
@@ -662,12 +766,25 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        public function isPackageWaitingForDelivery () {
                // Check whether the stacker is not empty
-               $isWaitingDelivery = (($this->getStackerInstance()->isStackInitialized(self::STACKER_NAME_OUTGOING)) && (!$this->getStackerInstance()->isStackEmpty(self::STACKER_NAME_OUTGOING)));
+               $isWaitingDelivery = (($this->getStackInstance()->isStackInitialized(self::STACKER_NAME_OUTGOING)) && (!$this->getStackInstance()->isStackEmpty(self::STACKER_NAME_OUTGOING)));
 
                // Return the result
                return $isWaitingDelivery;
        }
 
+       /**
+        * Checks whether encoded (raw) data is pending
+        *
+        * @return      $isPending              Whether encoded data is pending
+        */
+       public function isEncodedDataPending () {
+               // Check whether the stacker is not empty
+               $isPending = (($this->getStackInstance()->isStackInitialized(self::STACKER_NAME_OUTGOING_STREAM)) && (!$this->getStackInstance()->isStackEmpty(self::STACKER_NAME_OUTGOING_STREAM)));
+
+               // Return the result
+               return $isPending;
+       }
+
        /**
         * Delivers an enqueued package to the stated destination. If a non-session
         * id is provided, recipient resolver is being asked (and instanced once).
@@ -679,10 +796,13 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         * @throws      NoTargetException       If no target can't be determined
         */
        public function declareEnqueuedPackage () {
+               // Debug message
+               //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ': CALLED!');
+
                // Make sure this method isn't working if there is no package enqueued
                if (!$this->isPackageEnqueued()) {
                        // This is not fatal but should be avoided
-                       // @TODO Add some logging here
+                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: No raw package data waiting declaration, but ' . __METHOD__ . ' has been called!');
                        return;
                } // END - if
 
@@ -690,13 +810,13 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                 * Now there are for sure packages to deliver, so start with the first
                 * one.
                 */
-               $packageData = $this->getStackerInstance()->getNamed(self::STACKER_NAME_UNDECLARED);
+               $packageData = $this->getStackInstance()->popNamed(self::STACKER_NAME_UNDECLARED);
 
                // Declare the raw package data for delivery
                $this->declareRawPackageData($packageData);
 
-               // And remove it finally
-               $this->getStackerInstance()->popNamed(self::STACKER_NAME_UNDECLARED);
+               // Debug message
+               //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ': EXIT!');
        }
 
        /**
@@ -706,30 +826,40 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         *
         * @return      void
         */
-       public function deliverDeclaredPackage () {
+       public function processDeclaredPackage () {
+               // Debug message
+               //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ': CALLED!');
+
                // Sanity check if we have packages declared
                if (!$this->isPackageDeclared()) {
                        // This is not fatal but should be avoided
-                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: No package has been declared, but ' . __METHOD__ . ' has been called!');
+                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: No package has been declared, but ' . __METHOD__ . ' has been called!');
                        return;
                } // END - if
 
                // Get the package
-               $packageData = $this->getStackerInstance()->getNamed(self::STACKER_NAME_DECLARED);
+               $packageData = $this->getStackInstance()->getNamed(self::STACKER_NAME_DECLARED);
 
+               // Assert on it
+               assert(isset($packageData[self::PACKAGE_DATA_RECIPIENT]));
+
+               // Try to deliver the package
                try {
                        // And try to send it
                        $this->deliverRawPackageData($packageData);
 
                        // And remove it finally
-                       $this->getStackerInstance()->popNamed(self::STACKER_NAME_DECLARED);
+                       $this->getStackInstance()->popNamed(self::STACKER_NAME_DECLARED);
                } catch (InvalidStateException $e) {
                        // The state is not excepected (shall be 'connected')
-                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: Caught ' . $e->__toString() . ',message=' . $e->getMessage());
+                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Caught ' . $e->__toString() . ',message=' . $e->getMessage());
 
                        // Mark the package with status failed
                        $this->changePackageStatus($packageData, self::STACKER_NAME_DECLARED, self::PACKAGE_STATUS_FAILED);
                }
+
+               // Debug message
+               //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ': EXIT!');
        }
 
        /**
@@ -738,32 +868,108 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         * @return      void
         */
        public function sendWaitingPackage () {
-               // Send any waiting bytes in the back-buffer before sending a new package
-               $this->sendBackBufferBytes();
+               // Debug message
+               //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ': CALLED!');
 
                // Sanity check if we have packages waiting for delivery
                if (!$this->isPackageWaitingForDelivery()) {
                        // This is not fatal but should be avoided
-                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: No package is waiting for delivery, but ' . __METHOD__ . ' was called.');
+                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: No package is waiting for delivery, but ' . __METHOD__ . ' was called.');
                        return;
                } // END - if
 
                // Get the package
-               $packageData = $this->getStackerInstance()->getNamed(self::STACKER_NAME_OUTGOING);
+               $packageData = $this->getStackInstance()->getNamed(self::STACKER_NAME_OUTGOING);
 
                try {
                        // Now try to send it
                        $this->sendOutgoingRawPackageData($packageData);
 
                        // And remove it finally
-                       $this->getStackerInstance()->popNamed(self::STACKER_NAME_OUTGOING);
+                       $this->getStackInstance()->popNamed(self::STACKER_NAME_OUTGOING);
                } catch (InvalidSocketException $e) {
                        // Output exception message
-                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: Package was not delivered: ' . $e->getMessage());
+                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Package was not delivered: ' . $e->getMessage());
 
                        // Mark package as failed
                        $this->changePackageStatus($packageData, self::STACKER_NAME_OUTGOING, self::PACKAGE_STATUS_FAILED);
                }
+
+               // Debug message
+               //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ': EXIT!');
+       }
+
+       /**
+        * Sends out encoded data to a socket
+        *
+        * @return      void
+        */
+       public function sendEncodedData () {
+               // Debug message
+               //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ': CALLED!');
+
+               // Make sure there is pending encoded data
+               assert($this->isEncodedDataPending());
+
+               // Pop current data from stack
+               $encodedDataArray = $this->getStackInstance()->popNamed(self::STACKER_NAME_OUTGOING_STREAM);
+
+               // Init in this round sent bytes
+               $sentBytes = 0;
+
+               // Assert on socket
+               assert(is_resource($encodedDataArray[self::RAW_SOCKET_INDEX]));
+
+               // And deliver it
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('CONNECTION-HELPER[' . __METHOD__ . ':' . __LINE__ . ']: Sending out ' . strlen($encodedDataArray[self::RAW_ENCODED_DATA_INDEX]) . ' bytes,rawBufferSize=' . $encodedDataArray[self::RAW_BUFFER_SIZE_INDEX] . ',diff=' . $encodedDataArray[self::RAW_DIFF_INDEX]);
+               if ($encodedDataArray[self::RAW_DIFF_INDEX] >= 0) {
+                       // Send all out (encodedData is smaller than or equal buffer size)
+                       //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('CONNECTION-HELPER[' . __METHOD__ . ':' . __LINE__ . ']: MD5=' . md5(substr($encodedDataArray[self::RAW_ENCODED_DATA_INDEX], 0, ($encodedDataArray[self::RAW_BUFFER_SIZE_INDEX] - $encodedDataArray[self::RAW_DIFF_INDEX]))));
+                       $sentBytes = @socket_write($encodedDataArray[self::RAW_SOCKET_INDEX], $encodedDataArray[self::RAW_ENCODED_DATA_INDEX], ($encodedDataArray[self::RAW_BUFFER_SIZE_INDEX] - $encodedDataArray[self::RAW_DIFF_INDEX]));
+               } else {
+                       // Send buffer size out
+                       //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('CONNECTION-HELPER[' . __METHOD__ . ':' . __LINE__ . ']: MD5=' . md5(substr($encodedDataArray[self::RAW_ENCODED_DATA_INDEX], 0, $encodedDataArray[self::RAW_BUFFER_SIZE_INDEX])));
+                       $sentBytes = @socket_write($encodedDataArray[self::RAW_SOCKET_INDEX], $encodedDataArray[self::RAW_ENCODED_DATA_INDEX], $encodedDataArray[self::RAW_BUFFER_SIZE_INDEX]);
+               }
+
+               // If there was an error, we don't continue here
+               if ($sentBytes === FALSE) {
+                       // Handle the error with a faked recipientData array
+                       $this->handleSocketError(__METHOD__, __LINE__, $encodedDataArray[self::RAW_SOCKET_INDEX], array('0.0.0.0', '0'));
+
+                       // And throw it
+                       throw new InvalidSocketException(array($this, $encodedDataArray[self::RAW_SOCKET_INDEX], $socketError, $errorMessage), BaseListener::EXCEPTION_INVALID_SOCKET);
+               } elseif (($sentBytes === 0) && (strlen($encodedDataArray[self::RAW_ENCODED_DATA_INDEX]) > 0)) {
+                       // Nothing sent means we are done
+                       //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('CONNECTION-HELPER[' . __METHOD__ . ':' . __LINE__ . ']: All sent! (LINE=' . __LINE__ . ')');
+                       return;
+               } else {
+                       // The difference between sent bytes and length of raw data should not go below zero
+                       assert((strlen($encodedDataArray[self::RAW_ENCODED_DATA_INDEX]) - $sentBytes) >= 0);
+
+                       // Add total sent bytes
+                       $encodedDataArray[self::RAW_SENT_BYTES_INDEX] += $sentBytes;
+
+                       // Cut out the last unsent bytes
+                       //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('CONNECTION-HELPER[' . __METHOD__ . ':' . __LINE__ . ']: Sent out ' . $sentBytes . ' of ' . strlen($encodedDataArray[self::RAW_ENCODED_DATA_INDEX]) . ' bytes ...');
+                       $encodedDataArray[self::RAW_ENCODED_DATA_INDEX] = substr($encodedDataArray[self::RAW_ENCODED_DATA_INDEX], $sentBytes);
+
+                       // Calculate difference again
+                       $encodedDataArray[self::RAW_DIFF_INDEX] = $encodedDataArray[self::RAW_BUFFER_SIZE_INDEX] - strlen($encodedDataArray[self::RAW_ENCODED_DATA_INDEX]);
+
+                       // Can we abort?
+                       if (strlen($encodedDataArray[self::RAW_ENCODED_DATA_INDEX]) <= 0) {
+                               // Abort here, all sent!
+                               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('CONNECTION-HELPER[' . __METHOD__ . ':' . __LINE__ . ']: All sent! (LINE=' . __LINE__ . ')');
+                               return;
+                       } // END - if
+               }
+
+               // Push array back in stack
+               $this->getStackInstance()->pushNamed(self::STACKER_NAME_OUTGOING_STREAM, $encodedDataArray);
+
+               // Debug message
+               //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ': EXIT!');
        }
 
        ///////////////////////////////////////////////////////////////////////////
@@ -777,7 +983,7 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        private function isRawDataPending () {
                // Just return whether the stack is not empty
-               $isPending = (!$this->getStackerInstance()->isStackEmpty(self::STACKER_NAME_DECODED_INCOMING));
+               $isPending = (!$this->getStackInstance()->isStackEmpty(self::STACKER_NAME_DECODED_INCOMING));
 
                // Return the status
                return $isPending;
@@ -786,12 +992,11 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
        /**
         * Checks whether new raw package data has arrived at a socket
         *
-        * @param       $poolInstance   An instance of a PoolableListener class
         * @return      $hasArrived             Whether new raw package data has arrived for processing
         */
-       public function isNewRawDataPending (PoolableListener $poolInstance) {
+       public function isNewRawDataPending () {
                // Visit the pool. This monitors the pool for incoming raw data.
-               $poolInstance->accept($this->getVisitorInstance());
+               $this->getListenerPoolInstance()->accept($this->getVisitorInstance());
 
                // Check for new data arrival
                $hasArrived = $this->isRawDataPending();
@@ -814,15 +1019,15 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                 */
                if (!$this->isRawDataPending()) {
                        // This is not fatal but should be avoided
-                       // @TODO Add some logging here
+                       self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: No raw (decoded?) data is pending, but ' . __METHOD__ . ' has been called!');
                        return;
                } // END - if
 
                // Very noisy debug message:
-               /* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: Stacker size is ' . $this->getStackerInstance()->getStackCount(self::STACKER_NAME_DECODED_INCOMING) . ' entries.');
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Stacker size is ' . $this->getStackInstance()->getStackCount(self::STACKER_NAME_DECODED_INCOMING) . ' entries.');
 
                // "Pop" the next entry (the same array again) from the stack
-               $decodedData = $this->getStackerInstance()->popNamed(self::STACKER_NAME_DECODED_INCOMING);
+               $decodedData = $this->getStackInstance()->popNamed(self::STACKER_NAME_DECODED_INCOMING);
 
                // Make sure both array elements are there
                assert(
@@ -835,17 +1040,18 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                 * Also make sure the error code is SOCKET_ERROR_UNHANDLED because we
                 * only want to handle unhandled packages here.
                 */
-               /* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: errorCode=' . $decodedData[BaseRawDataHandler::PACKAGE_ERROR_CODE] . '(' . BaseRawDataHandler::SOCKET_ERROR_UNHANDLED . ')');
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: errorCode=' . $decodedData[BaseRawDataHandler::PACKAGE_ERROR_CODE] . '(' . BaseRawDataHandler::SOCKET_ERROR_UNHANDLED . ')');
                assert($decodedData[BaseRawDataHandler::PACKAGE_ERROR_CODE] == BaseRawDataHandler::SOCKET_ERROR_UNHANDLED);
 
-               // Remove the last chunk SEPARATOR (because it is being added and we don't need it)
+               // Remove the last chunk SEPARATOR (because there is no need for it)
                if (substr($decodedData[BaseRawDataHandler::PACKAGE_RAW_DATA], -1, 1) == PackageFragmenter::CHUNK_SEPARATOR) {
                        // It is there and should be removed
                        $decodedData[BaseRawDataHandler::PACKAGE_RAW_DATA] = substr($decodedData[BaseRawDataHandler::PACKAGE_RAW_DATA], 0, -1);
                } // END - if
 
                // This package is "handled" and can be pushed on the next stack
-               $this->getStackerInstance()->pushNamed(self::STACKER_NAME_DECODED_HANDLED, $decodedData);
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Pushing ' . strlen($decodedData[BaseRawDataHandler::PACKAGE_RAW_DATA]) . ' bytes to stack ' . self::STACKER_NAME_DECODED_HANDLED . ' ...');
+               $this->getStackInstance()->pushNamed(self::STACKER_NAME_DECODED_HANDLED, $decodedData);
        }
 
        /**
@@ -862,10 +1068,10 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                $decodedData = $handlerInstance->getNextRawData();
 
                // Very noisy debug message:
-               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: decodedData[' . gettype($decodedData) . ']=' . print_r($decodedData, true));
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: decodedData[' . gettype($decodedData) . ']=' . print_r($decodedData, TRUE));
 
                // And push it on our stack
-               $this->getStackerInstance()->pushNamed(self::STACKER_NAME_DECODED_INCOMING, $decodedData);
+               $this->getStackInstance()->pushNamed(self::STACKER_NAME_DECODED_INCOMING, $decodedData);
        }
 
        /**
@@ -875,7 +1081,7 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        public function isIncomingRawDataHandled () {
                // Determine if the stack is not empty
-               $isHandled = (!$this->getStackerInstance()->isStackEmpty(self::STACKER_NAME_DECODED_HANDLED));
+               $isHandled = (!$this->getStackInstance()->isStackEmpty(self::STACKER_NAME_DECODED_HANDLED));
 
                // Return it
                return $isHandled;
@@ -894,6 +1100,19 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                return $isHandled;
        }
 
+       /**
+        * Checks whether the assembler has multiple packages pending
+        *
+        * @return      $isPending      Whether the assembler has multiple packages pending
+        */
+       public function ifMultipleMessagesPending () {
+               // Determine if the stack is not empty
+               $isPending = ($this->getAssemblerInstance()->ifMultipleMessagesPending());
+
+               // Return it
+               return $isPending;
+       }
+
        /**
         * Handles the attached assemler's pending data queue to be finally
         * assembled to the raw package data back.
@@ -905,6 +1124,16 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                $this->getAssemblerInstance()->handlePendingData();
        }
 
+       /**
+        * Handles multiple messages.
+        *
+        * @return      void
+        */
+       public function handleMultipleMessages () {
+               // Handle it
+               $this->getAssemblerInstance()->handleMultipleMessages();
+       }
+
        /**
         * Assembles incoming decoded data so it will become an abstract network
         * package again. The assembler does later do it's job by an other task,
@@ -917,16 +1146,24 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                assert($this->isIncomingRawDataHandled());
 
                // Get current package content (an array with two elements; see handleIncomingDecodedData() for details)
-               $packageContent = $this->getStackerInstance()->getNamed(self::STACKER_NAME_DECODED_HANDLED);
+               $packageContent = $this->getStackInstance()->getNamed(self::STACKER_NAME_DECODED_HANDLED);
+
+               // Assert on some elements
+               assert(
+                       (is_array($packageContent)) &&
+                       (isset($packageContent[BaseRawDataHandler::PACKAGE_RAW_DATA])) &&
+                       (isset($packageContent[BaseRawDataHandler::PACKAGE_ERROR_CODE]))
+               );
 
                // Start assembling the raw package data array by chunking it
                $this->getAssemblerInstance()->chunkPackageContent($packageContent);
 
                // Remove the package from 'handled_decoded' stack ...
-               $this->getStackerInstance()->popNamed(self::STACKER_NAME_DECODED_HANDLED);
+               $this->getStackInstance()->popNamed(self::STACKER_NAME_DECODED_HANDLED);
 
                // ... and push it on the 'chunked' stacker
-               $this->getStackerInstance()->pushNamed(self::STACKER_NAME_DECODED_CHUNKED, $packageContent);
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: Pushing ' . strlen($packageContent[BaseRawDataHandler::PACKAGE_RAW_DATA]) . ' bytes on stack ' . self::STACKER_NAME_DECODED_CHUNKED . ',packageContent=' . print_r($packageContent, TRUE));
+               $this->getStackInstance()->pushNamed(self::STACKER_NAME_DECODED_CHUNKED, $packageContent);
        }
 
        /**
@@ -937,26 +1174,29 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        public function accept (Visitor $visitorInstance) {
                // Debug message
-               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: ' . $visitorInstance->__toString() . ' has visited - START');
+               /* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: ' . $visitorInstance->__toString() . ' has visited - CALLED!');
 
                // Visit the package
                $visitorInstance->visitNetworkPackage($this);
 
+               // Then visit the assembler to handle multiple packages
+               $this->getAssemblerInstance()->accept($visitorInstance);
+
                // Debug message
-               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: ' . $visitorInstance->__toString() . ' has visited - FINISHED');
+               /* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: ' . $visitorInstance->__toString() . ' has visited - EXIT!');
        }
 
        /**
-        * Clears all stacker
+        * Clears all stacks
         *
         * @return      void
         */
-       public function clearAllStacker () {
+       public function clearAllStacks () {
                // Call the init method to force re-initialization
-               $this->initStackers(true);
+               $this->initStacks(TRUE);
 
                // Debug message
-               /* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: All stacker have been re-initialized.');
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: All stacker have been re-initialized.');
        }
 
        /**
@@ -969,7 +1209,7 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        public function removeFirstFailedPackage () {
                // Get the package again
-               $packageData = $this->getStackerInstance()->getNamed(self::STACKER_NAME_DECLARED);
+               $packageData = $this->getStackInstance()->getNamed(self::STACKER_NAME_DECLARED);
 
                // Is the package status 'failed'?
                if ($packageData[self::PACKAGE_DATA_STATUS] != self::PACKAGE_STATUS_FAILED) {
@@ -978,7 +1218,7 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                } // END - if
 
                // Remove this entry
-               $this->getStackerInstance()->popNamed(self::STACKER_NAME_DECLARED);
+               $this->getStackInstance()->popNamed(self::STACKER_NAME_DECLARED);
        }
 
        /**
@@ -994,24 +1234,21 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                // Assert on count (should be always 3)
                assert(count($decodedArray) == self::DECODED_DATA_ARRAY_SIZE);
 
-               // Generate the signature of comparing it
-               /*
-                * @todo Unsupported feature of "signed" messages commented out
-               if (!$this->isPackageSignatureValid($decodedArray)) {
+               // Generate the hash of comparing it
+               if (!$this->isPackageHashValid($decodedArray)) {
                        // Is not valid, so throw an exception here
-                       exit(__METHOD__ . ':INVALID SIG! UNDER CONSTRUCTION!' . chr(10));
+                       exit(__METHOD__ . ':INVALID HASH! UNDER CONSTRUCTION!' . chr(10));
                } // END - if
-               */
 
                /*
-                * Create 'decodedData' array with all assoziative array elements,
-                * except signature.
+                * Create 'decodedData' array with all assoziative array elements.
                 */
                $decodedData = array(
                        self::PACKAGE_DATA_SENDER    => $decodedArray[self::INDEX_PACKAGE_SENDER],
                        self::PACKAGE_DATA_RECIPIENT => $decodedArray[self::INDEX_PACKAGE_RECIPIENT],
                        self::PACKAGE_DATA_CONTENT   => $decodedArray[self::INDEX_PACKAGE_CONTENT],
-                       self::PACKAGE_DATA_STATUS    => self::PACKAGE_STATUS_DECODED
+                       self::PACKAGE_DATA_STATUS    => self::PACKAGE_STATUS_DECODED,
+                       self::PACKAGE_DATA_HASH      => $decodedArray[self::INDEX_PACKAGE_HASH]
                );
 
                // And return it
@@ -1049,7 +1286,11 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                        // Tags as an indexed array for "tagging" the message
                        self::PACKAGE_CONTENT_TAGS      => explode(self::PACKAGE_TAGS_SEPARATOR, $decodedContent[self::INDEX_TAGS]),
                        // Checksum of the _decoded_ data
-                       self::PACKAGE_CONTENT_CHECKSUM  => $decodedContent[self::INDEX_CHECKSUM]
+                       self::PACKAGE_CONTENT_CHECKSUM  => $decodedContent[self::INDEX_CHECKSUM],
+                       // Sender's id
+                       self::PACKAGE_CONTENT_SENDER    => $decodedData[self::PACKAGE_DATA_SENDER],
+                       // Hash from decoded raw data
+                       self::PACKAGE_CONTENT_HASH      => $decodedData[self::PACKAGE_DATA_HASH]
                );
 
                // Is the checksum valid?
@@ -1065,7 +1306,7 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                $decodedContent[self::PACKAGE_CONTENT_MESSAGE] = $this->getCompressorInstance()->decompressStream($decodedContent[self::PACKAGE_CONTENT_MESSAGE]);
 
                // And push it on the next stack
-               $this->getStackerInstance()->pushNamed(self::STACKER_NAME_NEW_MESSAGE, $decodedContent);
+               $this->getStackInstance()->pushNamed(self::STACKER_NAME_NEW_MESSAGE, $decodedContent);
        }
 
        /**
@@ -1075,7 +1316,7 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        public function isNewMessageArrived () {
                // Determine if the stack is not empty
-               $hasArrived = (!$this->getStackerInstance()->isStackEmpty(self::STACKER_NAME_NEW_MESSAGE));
+               $hasArrived = (!$this->getStackInstance()->isStackEmpty(self::STACKER_NAME_NEW_MESSAGE));
 
                // Return it
                return $hasArrived;
@@ -1089,7 +1330,7 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        public function handleNewlyArrivedMessage () {
                // Get it from the stacker, it is the full array with the decoded message
-               $decodedContent = $this->getStackerInstance()->popNamed(self::STACKER_NAME_NEW_MESSAGE);
+               $decodedContent = $this->getStackInstance()->popNamed(self::STACKER_NAME_NEW_MESSAGE);
 
                // Now get a filter chain back from factory with given tags array
                $chainInstance = PackageFilterChainFactory::createChainByTagsArray($decodedContent[self::PACKAGE_CONTENT_TAGS]);
@@ -1098,7 +1339,7 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                 * Process the message through all filters, note that all other
                 * elements from $decodedContent are no longer needed.
                 */
-               $chainInstance->processMessage($decodedContent[self::PACKAGE_CONTENT_MESSAGE], $this);
+               $chainInstance->processMessage($decodedContent, $this);
        }
 
        /**
@@ -1108,7 +1349,7 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        public function isProcessedMessagePending () {
                // Check it
-               $isPending = (!$this->getStackerInstance()->isStackEmpty(self::STACKER_NAME_PROCESSED_MESSAGE));
+               $isPending = (!$this->getStackInstance()->isStackEmpty(self::STACKER_NAME_PROCESSED_MESSAGE));
 
                // Return it
                return $isPending;
@@ -1121,13 +1362,13 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
         */
        public function handleProcessedMessage () {
                // Get it from the stacker, it is the full array with the processed message
-               $messageArray = $this->getStackerInstance()->popNamed(self::STACKER_NAME_PROCESSED_MESSAGE);
+               $messageArray = $this->getStackInstance()->popNamed(self::STACKER_NAME_PROCESSED_MESSAGE);
 
                // Add type for later easier handling
                $messageArray[self::MESSAGE_ARRAY_DATA][self::MESSAGE_ARRAY_TYPE] = $messageArray[self::MESSAGE_ARRAY_TYPE];
 
                // Debug message
-               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE: messageArray=' . print_r($messageArray, true));
+               //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('NETWORK-PACKAGE[' . __METHOD__ . ':' . __LINE__ . ']: messageArray=' . print_r($messageArray, TRUE));
 
                // Create a handler instance from given message type
                $handlerInstance = MessageTypeHandlerFactory::createMessageTypeHandlerInstance($messageArray[self::MESSAGE_ARRAY_TYPE]);
@@ -1135,6 +1376,37 @@ class NetworkPackage extends BaseHubSystem implements Deliverable, Receivable, R
                // Handle message data
                $handlerInstance->handleMessageData($messageArray[self::MESSAGE_ARRAY_DATA], $this);
        }
+
+       /**
+        * Feeds the hash and sender (as recipient for the 'sender' reward) to the
+        * miner's queue, unless the message is not a "reward claim" message as this
+        * leads to an endless loop. You may wish to run the miner to get some
+        * reward ("HubCoins") for "mining" this hash.
+        *
+        * @param       $decodedDataArray       Array with decoded message
+        * @return      void
+        * @todo        ~10% done?
+        */
+       public function feedHashToMiner (array $decodedDataArray) {
+               // Make sure the required elements are there
+               assert(isset($decodedDataArray[self::PACKAGE_CONTENT_SENDER]));
+               assert(isset($decodedDataArray[self::PACKAGE_CONTENT_HASH]));
+               assert(isset($decodedDataArray[self::PACKAGE_CONTENT_TAGS]));
+
+               // Resolve session id ('sender' is a session id) into node id
+               $nodeId = HubTools::resolveNodeIdBySessionId($decodedDataArray[self::PACKAGE_CONTENT_SENDER]);
+
+               // Is 'claim_reward' the message type?
+               if (in_array('claim_reward', $decodedDataArray[self::PACKAGE_CONTENT_TAGS])) {
+                       /*
+                        * Then don't feed this message to the miner as this causes and
+                        * endless loop of mining.
+                        */
+                       return;
+               } // END - if
+
+               $this->partialStub('@TODO nodeId=' . $nodeId . ',decodedDataArray=' . print_r($decodedDataArray, TRUE));
+       }
 }
 
 // [EOF]