Example #1
0
    def __init__(self, conn, lang):
        asyncore.dispatcher_with_send.__init__(self, conn)

        self.ssled = False
        self.secure_connection(certfile="server.passless.crt",
                               keyfile="server.passless.key",
                               server_side=True)

        self.consumed_ace = False
        self.data = ""
        self.binary_mode = False
        self.decompressor = zlib.decompressobj()
        self.compressor = zlib.compressobj()
        self.unzipped_input = ""
        self.unzipped_output_buffer = ""
        self.output_buffer = ""
        self.speech = dict()
        self.pong = 1
        self.ping = 0
        self.httpClient = AsyncOpenHttp(self.handle_google_data,
                                        self.handle_google_failure)
        self.gotGoogleAnswer = False
        self.googleData = None
        self.lastRequestId = None
        self.dictation = None
        self.dbConnection = db.getConnection()
        self.assistant = None
        self.sendLock = threading.Lock()
        self.current_running_plugin = None
        self.current_location = None
        self.plugin_lastAceId = None
        self.logger = logging.getLogger("logger")
        self.lang = lang
Example #2
0
 def __init__(self, server, peer):
     Siri.__init__(self, server, peer)
     self.lastPing = 0
     self.pong = 0
     self.plugin_lastAceId = ""
     self.current_running_plugin = None
     self.dbConnection = server.dbConnection
     self.assistant = None
     self.speech = dict()
     self.httpClient = AsyncOpenHttp(self.handle_google_data)
     self.current_google_request = None
     self.current_location = None
     self.lastPingTime = time.time()
     self.timeoutschedule = twisted.internet.reactor.callLater(SiriProtocolHandler.__scheduling_interval_timeout__, self.checkTimeout)
Example #3
0
    def __init__(self, conn):
        asyncore.dispatcher_with_send.__init__(self, conn)
        
        self.ssled = False
        self.secure_connection(certfile="server.passless.crt", keyfile="server.passless.key", server_side=True)               

        self.consumed_ace = False
        self.data = ""
        self.binary_mode = False
        self.decompressor = zlib.decompressobj()
        self.compressor = zlib.compressobj()
        self.unzipped_input = ""
        self.unzipped_output_buffer = ""
        self.output_buffer = ""
        self.speech = dict()
        self.pong = 1
        self.ping = 0
        self.httpClient = AsyncOpenHttp(self.handle_google_data, self.handle_google_failure)
        self.gotGoogleAnswer = False
        self.googleData = None
        self.lastRequestId = None
        self.dictation = None
        self.dbConnection = db.getConnection()
        self.assistant = None
        self.sendLock = threading.Lock()
        self.current_running_plugin = None
        self.current_location = None
        self.plugin_lastAceId = None
        self.logger = logging.getLogger("logger")
 def __init__(self, server, peer):
     Siri.__init__(self, server, peer)
     self.lastPing = 0
     self.pong = 0
     self.plugin_lastAceId = ""
     self.current_running_plugin = None
     self.dbConnection = server.dbConnection
     self.assistant = None
     self.speech = dict()
     self.httpClient = AsyncOpenHttp(self.handle_google_data)
     self.current_google_request = None
     self.current_location = None
 def __init__(self, server, peer):
     Siri.__init__(self, server, peer)
     self.lastPing = 0
     self.pong = 0
     self.plugin_lastAceId = ""
     self.current_running_plugin = None
     self.dbConnection = server.dbConnection
     self.assistant = None
     self.speech = dict()
     self.httpClient = AsyncOpenHttp(self.handle_google_data)
     self.current_google_request = None
     self.current_location = None
     self.lastPingTime = time.time()
     self.timeoutschedule = twisted.internet.reactor.callLater(SiriProtocolHandler.__scheduling_interval_timeout__, self.checkTimeout)
Example #6
0
	def __init__(self, conn):
		asyncore.dispatcher_with_send.__init__(self, conn)

		self.ssled = False
		self.secure_connection(certfile="server.passless.crt", keyfile="server.passless.key", server_side=True)			   

		self.consumed_ace = False
		self.data = ""
		self.binary_mode = False
		self.decompressor = zlib.decompressobj()
		self.compressor = zlib.compressobj()
		self.unzipped_input = ""
		self.unzipped_output_buffer = ""
		self.output_buffer = ""
		self.speech = dict()
		self.pong = 1
		self.ping = 0
		self.httpClient = AsyncOpenHttp(self.handle_google_data, self.handle_google_failure)
		self.gotGoogleAnswer = False
		self.googleData = None
		self.lastRequestId = None
		self.dictation = None
Example #7
0
class HandleConnection(ssl_dispatcher):
    __not_recognized = {"de-DE": u"Entschuldigung, ich verstehe \"{0}\" nicht.", "en-US": u"Sorry I don't understand {0}"}
    __websearch = {"de-DE": u"Websuche", "en-US": u"Websearch"}
    def __init__(self, conn):
        asyncore.dispatcher_with_send.__init__(self, conn)
        
        self.ssled = False
        self.secure_connection(certfile="server.passless.crt", keyfile="server.passless.key", server_side=True)               

        self.consumed_ace = False
        self.data = ""
        self.binary_mode = False
        self.decompressor = zlib.decompressobj()
        self.compressor = zlib.compressobj()
        self.unzipped_input = ""
        self.unzipped_output_buffer = ""
        self.output_buffer = ""
        self.speech = dict()
        self.pong = 1
        self.ping = 0
        self.httpClient = AsyncOpenHttp(self.handle_google_data, self.handle_google_failure)
        self.gotGoogleAnswer = False
        self.googleData = None
        self.lastRequestId = None
        self.dictation = None
        self.dbConnection = db.getConnection()
        self.assistant = None
        self.sendLock = threading.Lock()
        self.current_running_plugin = None
        self.current_location = None
        self.plugin_lastAceId = None
        self.logger = logging.getLogger("logger")
    
    def handle_ssl_established(self):                
        self.ssled = True

    def handle_ssl_shutdown(self):
        self.ssled = False
            
    def readable(self):
        if self.ssled:
            while self.socket.pending() > 0:
                self.handle_read_event()
        return True

    def handle_read(self):
        self.data += self.recv(8192)
        if not self.binary_mode:
            if "\r\n\r\n" in self.data:
                endOfHeader = self.data.find("\r\n\r\n")+4
                self.header = self.data[:endOfHeader]
                self.data = self.data[endOfHeader:]
                self.logger.debug("--------------------------------------Header start------------------------------------")
                self.logger.debug(self.header)
                self.logger.debug("---------------------------------------Header end-------------------------------------")
                self.binary_mode = True
                self.header_complete = True
        else:
            if not self.consumed_ace:
                self.logger.debug("Received removing ace instruction: {0}".format(repr(self.data[:4])))
                self.data = self.data[4:]
                self.consumed_ace = True
                self.output_buffer = "HTTP/1.1 200 OK\r\nServer: Apache-Coyote/1.1\r\nDate: " +  formatdate(timeval=None, localtime=False, usegmt=True) + "\r\nConnection: close\r\n\r\n\xaa\xcc\xee\x02"
                #self.flush_output_buffer()
            
            # first process outstanding google answers THIS happens at least on each PING
            if self.gotGoogleAnswer:
                self.process_recognized_speech(self.googleData, self.lastRequestId, self.dictation)
                self.lastRequestId = None
                self.dictation = None
                self.googleData = None
                self.gotGoogleAnswer = False
            
            self.process_compressed_data()

    def handle_google_data(self, body, requestId, dictation):
        self.googleData = json.loads(body)
        self.lastRequestId = requestId
        self.dictation = dictation
        self.gotGoogleAnswer = True

    def handle_google_failure(self, requestId, dictation):
        self.googleData = None
        self.lastRequestId = requestId
        self.dictation = dictation
        self.gotGoogleAnswer = True

    def send_object(self, obj):
        self.send_plist(obj.to_plist())

    def send_plist(self, plist):
        self.sendLock.acquire()
        self.logger.debug("Sending:\n{0}".format(pprint.pformat(plist, width=40)))
        bplist = biplist.writePlistToString(plist);
        #
        self.unzipped_output_buffer = struct.pack('>BI', 2,len(bplist)) + bplist
        self.flush_unzipped_output() 
        self.sendLock.release()
    
    def send_pong(self, id):
        self.sendLock.acquire()
        self.unzipped_output_buffer = struct.pack('>BI', 4, id)
        self.flush_unzipped_output() 
        self.sendLock.release()

    def process_recognized_speech(self, googleJson, requestId, dictation):
        if googleJson == None:
            # there was a network failure
            # is this the correct command to send?
            self.send_object(speechObjects.SpeechFailure(requestId, "No connection to Google possible"))
            self.send_object(baseObjects.RequestCompleted(requestId))
        else:
            possible_matches = googleJson['hypotheses']
            if len(possible_matches) > 0:
                best_match = possible_matches[0]['utterance']
                best_match = best_match[0].upper()+best_match[1:]
                best_match_confidence = possible_matches[0]['confidence']
                self.logger.info(u"Best matching result: \"{0}\" with a confidence of {1}%".format(best_match, round(float(best_match_confidence)*100,2)))
                # construct a SpeechRecognized
                token = speechObjects.Token(best_match, 0, 0, 1000.0, True, True)
                interpretation = speechObjects.Interpretation([token])
                phrase = speechObjects.Phrase(lowConfidence=False, interpretations=[interpretation])
                recognition = speechObjects.Recognition([phrase])
                recognized = speechObjects.SpeechRecognized(requestId, recognition)
                
                if not dictation:
                    if self.current_running_plugin == None:
                        (clazz, method) = PluginManager.getPlugin(best_match, self.assistant.language)
                        if clazz != None and method != None:
                            plugin = clazz(method, best_match, self.assistant.language, self.send_object, self.send_plist, self.assistant, self.current_location)
                            plugin.refId = requestId
                            plugin.connection = self
                            self.current_running_plugin = plugin
                            self.send_object(recognized)
                            self.current_running_plugin.start()
                        else:
                            self.send_object(recognized)
                            view = uiObjects.AddViews(requestId)
                            errorText = HandleConnection.__not_recognized[self.assistant.language] if self.assistant.language in HandleConnection.__not_recognized else HandleConnection.__not_recognized["en-US"]
                            view.views += [uiObjects.AssistantUtteranceView(errorText.format(best_match), errorText.format(best_match))]
                            websearchText = HandleConnection.__websearch[self.assistant.language] if self.assistant.language in HandleConnection.__websearch else HandleConnection.__websearch["en-US"]
                            button = uiObjects.Button(text=websearchText)
                            cmd = systemObjects.SendCommands()
                            cmd.commands = [systemObjects.StartRequest(utterance=u"^webSearchQuery^=^{0}^^webSearchConfirmation^=^Yes^".format(best_match))]
                            button.commands = [cmd]
                            view.views.append(button)
                            self.send_object(view)
                            self.send_object(baseObjects.RequestCompleted(requestId))
                    elif self.current_running_plugin.waitForResponse != None:
                        # do we need to send a speech recognized here? i.d.k
                        self.current_running_plugin.response = best_match
                        self.current_running_plugin.refId = requestId
                        self.current_running_plugin.waitForResponse.set()
                    else:
                        self.send_object(recognized)
                        self.send_object(baseObjects.RequestCompleted(requestId))
                else:
                    self.send_object(recognized)
                    self.send_object(baseObjects.RequestCompleted(requestId))

    def process_compressed_data(self):
        self.unzipped_input += self.decompressor.decompress(self.data)
        self.data = ""
        while self.hasNextObj():
            reqObject = self.read_next_object_from_unzipped()
            if reqObject != None:
                self.logger.debug("Packet with class: {0}".format(reqObject['class']))
                self.logger.debug("packet with content:\n{0}".format(pprint.pformat(reqObject, width=40)))
                
                # first handle speech stuff
                
                if 'refId' in reqObject:
                    # if the following holds, this packet is an answer to a request by a plugin
                    if reqObject['refId'] == self.plugin_lastAceId and self.current_running_plugin != None:
                        if self.current_running_plugin.waitForResponse != None:
                            # just forward the object to the 
                            # don't change it's refId, further requests must reference last FinishSpeech
                            self.logger.info("Forwarding object to plugin")
                            self.plugin_lastAceId = None
                            self.current_running_plugin.response = reqObject
                            self.current_running_plugin.waitForResponse.set()
                
                if ObjectIsCommand(reqObject, StartSpeechRequest) or ObjectIsCommand(reqObject, StartSpeechDictation):
                    self.logger.info("New start of speech received")
                    startSpeech = None
                    if ObjectIsCommand(reqObject, StartSpeechDictation):
                        dictation = True
                        startSpeech = StartSpeechDictation(reqObject)
                    else:
                        dictation = False
                        startSpeech = StartSpeechRequest(reqObject)
            
                    decoder = speex.Decoder()
                    encoder = flac.Encoder()
                    speexUsed = False
                    if startSpeech.codec == StartSpeech.CodecSpeex_WB_Quality8Value:
                        decoder.initialize(mode=speex.SPEEX_MODEID_WB)
                        encoder.initialize(16000, 1, 16)
                        speexUsed = True
                    elif startSpeech.codec == StartSpeech.CodecSpeex_NB_Quality7Value:
                        decoder.initialize(mode=speex.SPEEX_MODEID_NB)
                        encoder.initialize(16000, 1, 16)
                        speexUsed = True
                    elif startSpeech.codec == StartSpeech.CodecPCM_Mono_16Bit_8000HzValue:
                        encoder.initialize(8000, 1, 16)
                    elif startSpeech.codec == StartSpeech.CodecPCM_Mono_16Bit_11025HzValue:
                        encoder.initialize(11025, 1, 16)
                    elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_16000HzValue:
                        encoder.initialize(16000, 1, 16)
                    elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_22050HzValue:
                        encoder.initialize(22050, 1, 16)
                    elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_32000HzValue:
                        encoder.initialize(32000, 1, 16)
                    # we probably need resampling for sample rates other than 16kHz...
                    
                    self.speech[startSpeech.aceId] = (decoder if speexUsed else None, encoder, dictation)
                
                elif ObjectIsCommand(reqObject, SpeechPacket):
                    self.logger.info("Decoding speech packet")
                    speechPacket = SpeechPacket(reqObject)
                    (decoder, encoder, dictation) = self.speech[speechPacket.refId]
                    if decoder:
                        pcm = decoder.decode(speechPacket.packets)
                    else:
                        pcm = SpeechPacket.data # <- probably data... if pcm
                    encoder.encode(pcm)
                        
                elif reqObject['class'] == 'StartCorrectedSpeechRequest':
                    self.process_recognized_speech({u'hypotheses': [{'confidence': 1.0, 'utterance': str.lower(reqObject['properties']['utterance'])}]}, reqObject['aceId'], False)
            
                elif ObjectIsCommand(reqObject, FinishSpeech):
                    self.logger.info("End of speech received")
                    finishSpeech = FinishSpeech(reqObject)
                    (decoder, encoder, dictation) = self.speech[finishSpeech.refId]
                    if decoder:
                        decoder.destroy()
                    encoder.finish()
                    flacBin = encoder.getBinary()
                    encoder.destroy()
                    del self.speech[finishSpeech.refId]
                    
                    self.logger.info("Sending flac to google for recognition")
                    self.httpClient.make_google_request(flacBin, finishSpeech.refId, dictation, language=self.assistant.language, allowCurses=True)
                        
                        
                elif ObjectIsCommand(reqObject, CancelRequest):
                        # this is probably called when we need to kill a plugin
                        # wait for thread to finish a send
                        cancelRequest = CancelRequest(reqObject)
                        if cancelRequest.refId in self.speech:
                            del self.speech[cancelRequest.refId]
                        
                        self.send_object(CancelSucceeded(cancelRequest.aceId))

                elif ObjectIsCommand(reqObject, GetSessionCertificate):
                    getSessionCertificate = GetSessionCertificate(reqObject)
                    response = GetSessionCertificateResponse(getSessionCertificate.aceId)
                    response.caCert = caCert.as_der()
                    response.sessionCert = serverCert.as_der()
                    self.send_object(response)

                elif ObjectIsCommand(reqObject, CreateSessionInfoRequest):
                    # how does a positive answer look like?
                    createSessionInfoRequest = CreateSessionInfoRequest(reqObject)
                    fail = CommandFailed(createSessionInfoRequest.aceId)
                    fail.reason = "Not authenticated"
                    fail.errorCode = 0
                    self.send_object(fail)

                    #self.send_plist({"class":"SessionValidationFailed", "properties":{"errorCode":"UnsupportedHardwareVersion"}, "aceId": str(uuid.uuid4()), "refId":reqObject['aceId'], "group":"com.apple.ace.system"})
                    
                elif reqObject['class'] == 'CreateAssistant':
                    #create a new assistant
                    helper = Assistant()
                    c = self.dbConnection.cursor()
                    noError = True
                    try:
                        c.execute("insert into assistants(assistantId, assistant) values (?,?)", (helper.assistantId, helper))
                        self.dbConnection.commit()
                    except sqlite3.Error, e: 
                        noError = False
                    c.close()
                    if noError:
                        self.assistant = helper
                        self.send_plist({"class": "AssistantCreated", "properties": {"speechId": str(uuid.uuid4()), "assistantId": helper.assistantId}, "group":"com.apple.ace.system", "callbacks":[], "aceId": str(uuid.uuid4()), "refId": reqObject['aceId']})
                    else:
                        self.send_plist({"class":"CommandFailed", "properties": {"reason":"Database error", "errorCode":2, "callbacks":[]}, "aceId": str(uuid.uuid4()), "refId": reqObject['aceId'], "group":"com.apple.ace.system"})
            
                elif reqObject['class'] == 'SetAssistantData':
                    # fill assistant 
                    if self.assistant != None:
                        c = self.dbConnection.cursor()
                        objProperties = reqObject['properties'] 
                        self.assistant.censorSpeech = objProperties['censorSpeech']
                        self.assistant.timeZoneId = objProperties['timeZoneId']
                        self.assistant.language = objProperties['language']
                        self.assistant.region = objProperties['region']
                        c.execute("update assistants set assistant = ? where assistantId = ?", (self.assistant, self.assistant.assistantId))
                        self.dbConnection.commit()
                        c.close()

            
                elif reqObject['class'] == 'LoadAssistant':
                    c = self.dbConnection.cursor()
                    c.execute("select assistant from assistants where assistantId = ?", (reqObject['properties']['assistantId'],))
                    self.dbConnection.commit()
                    result = c.fetchone()
                    if result == None:
                        self.send_plist({"class": "AssistantNotFound", "aceId":str(uuid.uuid4()), "refId":reqObject['aceId'], "group":"com.apple.ace.system"})
                    else:
                        self.assistant = result[0]
                        self.send_plist({"class": "AssistantLoaded", "properties": {"version": "20111216-32234-branches/telluride?cnxn=293552c2-8e11-4920-9131-5f5651ce244e", "requestSync":False, "dataAnchor":"removed"}, "aceId":str(uuid.uuid4()), "refId":reqObject['aceId'], "group":"com.apple.ace.system"})
                    c.close()

                elif reqObject['class'] == 'DestroyAssistant':
                    c = self.dbConnection.cursor()
                    c.execute("delete from assistants where assistantId = ?", (reqObject['properties']['assistantId'],))
                    self.dbConnection.commit()
                    c.close()
                    self.send_plist({"class": "AssistantDestroyed", "properties": {"assistantId": reqObject['properties']['assistantId']}, "aceId":str(uuid.uuid4()), "refId":reqObject['aceId'], "group":"com.apple.ace.system"})
                elif reqObject['class'] == 'StartRequest':
                    #this should also be handeled by special plugins, so lets call the plugin handling stuff
                    self.process_recognized_speech({'hypotheses': [{'utterance': reqObject['properties']['utterance'], 'confidence': 1.0}]}, reqObject['aceId'], False)
Example #8
0
class HandleConnection(ssl_dispatcher):
    def __init__(self, conn):
        asyncore.dispatcher_with_send.__init__(self, conn)
        
        self.ssled = False
        self.secure_connection(certfile="server.passless.crt", keyfile="server.passless.key", server_side=True)               

        self.consumed_ace = False
        self.data = ""
        self.binary_mode = False
        self.decompressor = zlib.decompressobj()
        self.compressor = zlib.compressobj()
        self.unzipped_input = ""
        self.unzipped_output_buffer = ""
        self.output_buffer = ""
        self.speech = dict()
        self.pong = 1
        self.ping = 0
        self.httpClient = AsyncOpenHttp(self.handle_google_data, self.handle_google_failure)
        self.gotGoogleAnswer = False
        self.googleData = None
        self.lastRequestId = None
        self.dictation = None
        self.dbConnection = db.getConnection()
        self.assistant = None
        self.sendLock = threading.Lock()
        self.current_running_plugin = None
        self.logger = logging.getLogger("logger")
    
    def handle_ssl_established(self):                
        self.ssled = True

    def handle_ssl_shutdown(self):
        self.ssled = False
            
    def readable(self):
        if self.ssled:
            while self.socket.pending() > 0:
                self.handle_read_event()
        return True

    def handle_read(self):
        self.data += self.recv(8192)
        if not self.binary_mode:
            if "\r\n\r\n" in self.data:
                endOfHeader = self.data.find("\r\n\r\n")+4
                self.header = self.data[:endOfHeader]
                self.data = self.data[endOfHeader:]
                self.logger.debug("--------------------------------------Header start------------------------------------")
                self.logger.debug(self.header)
                self.logger.debug("---------------------------------------Header end-------------------------------------")
                self.binary_mode = True
                self.header_complete = True
        else:
            if not self.consumed_ace:
                self.logger.debug("Received removing ace instruction: {0}".format(repr(self.data[:4])))
                self.data = self.data[4:]
                self.consumed_ace = True
                self.output_buffer = "HTTP/1.1 200 OK\r\nServer: Apache-Coyote/1.1\r\nDate: " +  formatdate(timeval=None, localtime=False, usegmt=True) + "\r\nConnection: close\r\n\r\n\xaa\xcc\xee\x02"
                #self.flush_output_buffer()
            
            # first process outstanding google answers THIS happens at least on each PING
            if self.gotGoogleAnswer:
                self.process_recognized_speech(self.googleData, self.lastRequestId, self.dictation)
                self.lastRequestId = None
                self.dictation = None
                self.googleData = None
                self.gotGoogleAnswer = False
            
            self.process_compressed_data()

    def handle_google_data(self, body, requestId, dictation):
        self.googleData = json.loads(body)
        self.lastRequestId = requestId
        self.dictation = dictation
        self.gotGoogleAnswer = True

    def handle_google_failure(self, requestId, dictation):
        self.googleData = None
        self.lastRequestId = requestId
        self.dictation = dictation
        self.gotGoogleAnswer = True

    def send_object(self, obj):
        self.send_plist(obj.to_plist())

    def send_plist(self, plist):
        self.sendLock.acquire()
        self.logger.debug("Sending:\n{0}".format(pprint.pformat(plist, width=40)))
        bplist = biplist.writePlistToString(plist);
        #
        self.unzipped_output_buffer = struct.pack('>BI', 2,len(bplist)) + bplist
        self.flush_unzipped_output() 
        self.sendLock.release()
    
    def send_pong(self, id):
        self.sendLock.acquire()
        self.unzipped_output_buffer = struct.pack('>BI', 4, id)
        self.flush_unzipped_output() 
        self.sendLock.release()

    def process_recognized_speech(self, googleJson, requestId, dictation):
        if googleJson == None:
            # there was a network failure
            self.send_object(speechObjects.SpeechFailure(requestId, "No connection to Google possible"))
            self.send_object(baseObjects.RequestCompleted(requestID))
        else:
            possible_matches = googleJson['hypotheses']
            if len(possible_matches) > 0:
                best_match = possible_matches[0]['utterance']
                best_match_confidence = possible_matches[0]['confidence']
                self.logger.info(u"Best matching result: \"{0}\" with a confidence of {1}%".format(best_match, round(float(best_match_confidence)*100,2)))
                # construct a SpeechRecognized
                token = speechObjects.Token(best_match, 0, 0, 1000.0, True, True)
                interpretation = speechObjects.Interpretation([token])
                phrase = speechObjects.Phrase(lowConfidence=False, interpretations=[interpretation])
                recognition = speechObjects.Recognition([phrase])
                recognized = speechObjects.SpeechRecognized(requestId, recognition)
                
                
                
                if self.current_running_plugin == None:
                    (clazz, method) = PluginManager.getPlugin(best_match, self.assistant.language)
                    if clazz != None and method != None:
                        plugin = clazz(method, best_match, self.assistant.language)
                        plugin.refId = requestId
                        plugin.connection = self
                        self.current_running_plugin = plugin
                        self.send_object(recognized)
                        self.current_running_plugin.start()
                    else:
                        self.send_object(recognized)
                        self.send_object(baseObjects.RequestCompleted(requestId))
                elif self.current_running_plugin.waitForResponse != None:
                    self.current_running_plugin.response = best_match
                    self.current_running_plugin.refId = requestId
                    self.current_running_plugin.waitForResponse.set()
                else:
                    self.send_object(recognized)
                    self.send_object(baseObjects.RequestCompleted(requestId))
            

    def process_compressed_data(self):
        self.unzipped_input += self.decompressor.decompress(self.data)
        self.data = ""
        while self.hasNextObj():
            reqObject = self.read_next_object_from_unzipped()
            if reqObject != None:
                self.logger.debug("Packet with class: {0}".format(reqObject['class']))
                self.logger.debug("packet with content:\n{0}".format(pprint.pformat(reqObject, width=40)))
                
                # first handle speech stuff
                
                if reqObject['class'] == 'StartSpeechRequest' or reqObject['class'] == 'StartSpeechDictation':
                        decoder = speex.Decoder()
                        decoder.initialize(mode=speex.SPEEX_MODEID_WB)
                        encoder = flac.Encoder()
                        encoder.initialize(16000, 1, 16) #16kHz sample rate, 1 channel, 16 bits per sample
                        dictation=(reqObject['class'] == 'StartSpeechDictation')
                        self.speech[reqObject['aceId']] = (decoder, encoder, dictation)
                
                elif reqObject['class'] == 'SpeechPacket':
                    (decoder, encoder, dictation) = self.speech[reqObject['refId']]
                    pcm = decoder.decode(reqObject['properties']['packets'])
                    encoder.encode(pcm)
                        
                elif reqObject['class'] == 'StartCorrectedSpeechRequest':
                    self.process_recognized_speech({u'hypotheses': [{'confidence': 1.0, 'utterance': str.lower(reqObject['properties']['utterance'])}]}, reqObject['aceId'], False)
            
                elif reqObject['class'] == 'FinishSpeech':
                    (decoder, encoder, dictation) = self.speech[reqObject['refId']]
                    decoder.destroy()
                    encoder.finish()
                    flacBin = encoder.getBinary()
                    encoder.destroy()
                    del self.speech[reqObject['refId']]
                    
                    self.httpClient.make_google_request(flacBin, reqObject['refId'], dictation, language=self.assistant.language, allowCurses=True)
                        
                        
                elif reqObject['class'] == 'CancelRequest':
                        # this is probably called when we need to kill a plugin
                        # wait for thread to finish a send
                        if reqObject['refId'] in self.speech:
                            del self.speech[reqObject['refId']]
                        self.send_plist({"class": "CancelSucceeded", "group": "com.apple.ace.system", "aceId": str(uuid.uuid4()), "refId": reqObject['aceId'], "properties":{"callbacks": []}})
                        
                # handle responses to plugin
                elif self.current_running_plugin != None and reqObject['group'] != "com.apple.ace.system" and "refId" in reqObject:
                    if self.current_running_plugin.waitForResponse != None:
                        # just forward the object to the 
                        self.current_running_plugin.response = reqObject
                        self.current_running_plugin.refId = reqObject['refId']
                        self.current_running_plugin.waitForResponse.set()
                else:
                    # handle other stuff
                    if reqObject['class'] == 'GetSessionCertificate':
                        caDer = caCert.as_der()
                        serverDer = serverCert.as_der()
                        self.send_plist({"class": "GetSessionCertificateResponse", "group": "com.apple.ace.system", "aceId": str(uuid.uuid4()), "refId": reqObject['aceId'], "properties":{"certificate": biplist.Data("\x01\x02"+struct.pack(">I", len(caDer))+caDer + struct.pack(">I", len(serverDer))+serverDer)}})

                        #self.send_plist({"class":"CommandFailed", "properties": {"reason":"Not authenticated", "errorCode":0, "callbacks":[]}, "aceId": str(uuid.uuid4()), "refId": reqObject['aceId'], "group":"com.apple.ace.system"})
                    if reqObject['class'] == 'CreateSessionInfoRequest':
                # how does a positive answer look like?
                        self.send_plist({"class":"CommandFailed", "properties": {"reason":"Not authenticated", "errorCode":0, "callbacks":[]}, "aceId": str(uuid.uuid4()), "refId": reqObject['aceId'], "group":"com.apple.ace.system"})
                        #self.send_plist({"class":"SessionValidationFailed", "properties":{"errorCode":"UnsupportedHardwareVersion"}, "aceId": str(uuid.uuid4()), "refId":reqObject['aceId'], "group":"com.apple.ace.system"})
                        
                    if reqObject['class'] == 'CreateAssistant':
                        #create a new assistant
                        helper = Assistant()
                        c = self.dbConnection.cursor()
                        noError = True
                        try:
                            c.execute("insert into assistants(assistantId, assistant) values (?,?)", (helper.assistantId, helper))
                            self.dbConnection.commit()
                        except sqlite3.Error, e: 
                            noError = False
                        c.close()
                        if noError:
                            self.assistant = helper
                            self.send_plist({"class": "AssistantCreated", "properties": {"speechId": str(uuid.uuid4()), "assistantId": helper.assistantId}, "group":"com.apple.ace.system", "callbacks":[], "aceId": str(uuid.uuid4()), "refId": reqObject['aceId']})
                        else:
                            self.send_plist({"class":"CommandFailed", "properties": {"reason":"Database error", "errorCode":2, "callbacks":[]}, "aceId": str(uuid.uuid4()), "refId": reqObject['aceId'], "group":"com.apple.ace.system"})
                
                    if reqObject['class'] == 'SetAssistantData':
                        # fill assistant 
                        if self.assistant != None:
                            c = self.dbConnection.cursor()
                            objProperties = reqObject['properties'] 
                            self.assistant.censorSpeech = objProperties['censorSpeech']
                            self.assistant.timeZoneId = objProperties['timeZoneId']
                            self.assistant.language = objProperties['language']
                            self.assistant.region = objProperties['region']
                            c.execute("update assistants set assistant = ? where assistantId = ?", (self.assistant, self.assistant.assistantId))
                            self.dbConnection.commit()
                            c.close()

                
                    if reqObject['class'] == 'LoadAssistant':
                        c = self.dbConnection.cursor()
                        c.execute("select assistant from assistants where assistantId = ?", (reqObject['properties']['assistantId'],))
                        self.dbConnection.commit()
                        result = c.fetchone()
                        if result == None:
                            self.send_plist({"class": "AssistantNotFound", "aceId":str(uuid.uuid4()), "refId":reqObject['aceId'], "group":"com.apple.ace.system"})
                        else:
                            self.assistant = result[0]
                            self.send_plist({"class": "AssistantLoaded", "properties": {"version": "20111216-32234-branches/telluride?cnxn=293552c2-8e11-4920-9131-5f5651ce244e", "requestSync":False, "dataAnchor":"removed"}, "aceId":str(uuid.uuid4()), "refId":reqObject['aceId'], "group":"com.apple.ace.system"})
                        c.close()

                    if reqObject['class'] == 'DestroyAssistant':
                        c = self.dbConnection.cursor()
                        c.execute("delete from assistants where assistantId = ?", (reqObject['properties']['assistantId'],))
                        self.dbConnection.commit()
                        c.close()
                        self.send_plist({"class": "AssistantDestroyed", "properties": {"assistantId": reqObject['properties']['assistantId']}, "aceId":str(uuid.uuid4()), "refId":reqObject['aceId'], "group":"com.apple.ace.system"})
class SiriProtocolHandler(Siri):
    __not_recognized = {"de-DE": u"Entschuldigung, ich verstehe \"{0}\" nicht.", "en-US": u"Sorry I don't understand {0}", "fr-FR": u"Désolé je ne comprends pas ce que \"{0}\" veut dire.", "nl-NL": u"Excuses, \"{0}\" versta ik niet."}
    __websearch = {"de-DE": u"Websuche", "en-US": u"Websearch", "fr-FR": u"Rechercher sur le Web", "nl-NL": u"Zoeken op het web"}
    __scheduling_interval_timeout__ = 20
    __timeout_delay = 10
    
    def __init__(self, server, peer):
        Siri.__init__(self, server, peer)
        self.lastPing = 0
        self.pong = 0
        self.plugin_lastAceId = ""
        self.current_running_plugin = None
        self.dbConnection = server.dbConnection
        self.assistant = None
        self.speech = dict()
        self.httpClient = AsyncOpenHttp(self.handle_google_data)
        self.current_google_request = None
        self.current_location = None
        self.lastPingTime = time.time()
        self.syncAnchors = dict()
        self.timeoutschedule = twisted.internet.reactor.callLater(SiriProtocolHandler.__scheduling_interval_timeout__, self.checkTimeout)
        
    def seconds_since_last_ping(self):
        return time.time() - self.lastPingTime
    
    def connectionLost(self, reason):
        try:
            self.timeoutschedule.cancel()
        except:
            pass
        if self.current_google_request != None:
                self.current_google_request.cancel()
        #ensure all decoder/encoder attemps are closed
        for key in self.speech.keys():
            (decoder, encoder, _) = self.speech[key]
            if decoder:
                decoder.destroy()
            if encoder:
                encoder.finish()
                encoder.destroy()
        del self.speech
        self.current_running_plugin = None
        self.dbConnection = None
        self.httpClient = None
        Siri.connectionLost(self, reason)
    
    def checkTimeout(self):
        if self.seconds_since_last_ping() > SiriProtocolHandler.__timeout_delay:
            self.logger.info("Connection timed out")
            self.transport.loseConnection() 
        else:
            self.timeoutschedule = twisted.internet.reactor.callLater(SiriProtocolHandler.__scheduling_interval_timeout__, self.checkTimeout)  
    
    def handle_google_data(self, body, requestId, dictation):
        self.current_google_request = None
        if (body != None):
            googleAnswer = json.loads(body)
            for i in xrange(0,len(googleAnswer['hypotheses'])-1):
                utterance = googleAnswer['hypotheses'][i]['utterance']
                if len(utterance) == 1:
                    utterance = utterance.upper()
                else:
                    utterance = utterance[0].upper() + utterance[1:]
                googleAnswer['hypotheses'][i]['utterance'] = utterance
            self.process_recognized_speech(googleAnswer, requestId, dictation)
        else:
            self.send_object(SpeechFailure(requestId, "No connection to Google possible"))
            self.send_object(RequestCompleted(requestId))
        
    def received_ping(self, numOfPing):
        self.pong += 1
        self.lastPing = numOfPing
        self.lastPingTime = time.time()
        self.send_pong(self.pong)
        
    def process_recognized_speech(self, googleJson, requestId, dictation):
        possible_matches = googleJson['hypotheses']
        if len(possible_matches) > 0:
            best_match = possible_matches[0]['utterance']
            best_match_confidence = possible_matches[0]['confidence']
            self.logger.info(u"Best matching result: \"{0}\" with a confidence of {1}%".format(best_match, round(float(best_match_confidence) * 100, 2)))
            # construct a SpeechRecognized
            token = Token(best_match, 0, 0, 1000.0, True, True)
            interpretation = Interpretation([token])
            phrase = Phrase(lowConfidence=False, interpretations=[interpretation])
            recognition = Recognition([phrase])
            recognized = SpeechRecognized(requestId, recognition)
            
            if not dictation:
                if self.current_running_plugin == None:
                    plugin = PluginManager.getPluginForImmediateExecution(self.assistant.assistantId, best_match, self.assistant.language, (self.send_object, self.send_plist, self.assistant, self.current_location))
                    if plugin != None:
                        plugin.refId = requestId
                        plugin.connection = self
                        self.current_running_plugin = plugin
                        self.send_object(recognized)
                        self.current_running_plugin.start()
                    else:
                        self.send_object(recognized)
                        view = UIAddViews(requestId)
                        errorText = SiriProtocolHandler.__not_recognized[self.assistant.language] if self.assistant.language in SiriProtocolHandler.__not_recognized else SiriProtocolHandler.__not_recognized["en-US"]
                        errorView = UIAssistantUtteranceView()
                        errorView.text = errorText.format(best_match)
                        errorView.speakableText = errorText.format(best_match)
                        view.views = [errorView]
                        websearchText = SiriProtocolHandler.__websearch[self.assistant.language] if self.assistant.language in SiriProtocolHandler.__websearch else SiriProtocolHandler.__websearch["en-US"]
                        button = UIButton()
                        button.text = websearchText
                        cmd = SendCommands()
                        cmd.commands = [StartRequest(utterance=u"^webSearchQuery^=^{0}^^webSearchConfirmation^=^Yes^".format(best_match))]
                        button.commands = [cmd]
                        view.views.append(button)
                        self.send_object(view)
                        self.send_object(RequestCompleted(requestId))
                elif self.current_running_plugin.waitForResponse != None:
                    # do we need to send a speech recognized here? i.d.k
                    self.current_running_plugin.response = best_match
                    self.current_running_plugin.refId = requestId
                    self.current_running_plugin.waitForResponse.set()
                else:
                    self.send_object(recognized)
                    self.send_object(RequestCompleted(requestId))
            else:
                self.send_object(recognized)
                self.send_object(RequestCompleted(requestId))
    
    def received_plist(self, plist):
        self.logger.debug("Got packet with class: {0}".format(plist['class']))
        self.logger.debug("packet with content:\n{0}".format(pprint.pformat(plist, width=40)))
        
        # first handle speech stuff
        
        if 'refId' in plist:
            # if the following holds, this packet is an answer to a request by a plugin
            if plist['refId'] == self.plugin_lastAceId and self.current_running_plugin != None:
                if self.current_running_plugin.waitForResponse != None:
                    # just forward the object to the 
                    # don't change it's refId, further requests must reference last FinishSpeech
                    self.logger.debug("Forwarding object to plugin")
                    self.plugin_lastAceId = None
                    self.current_running_plugin.response = plist if plist['class'] != "StartRequest" else plist['properties']['utterance']
                    self.current_running_plugin.waitForResponse.set()
                    return
        
        if ObjectIsCommand(plist, StartSpeechRequest) or ObjectIsCommand(plist, StartSpeechDictation):
            self.logger.debug("New start of speech received")
            startSpeech = None
            if ObjectIsCommand(plist, StartSpeechDictation):
                dictation = True
                startSpeech = StartSpeechDictation(plist)
            else:
                dictation = False
                startSpeech = StartSpeechRequest(plist)
    
            decoder = speex.Decoder()
            encoder = flac.Encoder()
            speexUsed = False
            if startSpeech.codec == StartSpeech.CodecSpeex_WB_Quality8Value:
                decoder.initialize(mode=speex.SPEEX_MODEID_WB)
                encoder.initialize(16000, 1, 16)
                speexUsed = True
            elif startSpeech.codec == StartSpeech.CodecSpeex_NB_Quality7Value:
                decoder.initialize(mode=speex.SPEEX_MODEID_NB)
                encoder.initialize(16000, 1, 16)
                speexUsed = True
            elif startSpeech.codec == StartSpeech.CodecPCM_Mono_16Bit_8000HzValue:
                encoder.initialize(8000, 1, 16)
            elif startSpeech.codec == StartSpeech.CodecPCM_Mono_16Bit_11025HzValue:
                encoder.initialize(11025, 1, 16)
            elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_16000HzValue:
                encoder.initialize(16000, 1, 16)
            elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_22050HzValue:
                encoder.initialize(22050, 1, 16)
            elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_32000HzValue:
                encoder.initialize(32000, 1, 16)
            # we probably need resampling for sample rates other than 16kHz...
            
            self.speech[startSpeech.aceId] = (decoder if speexUsed else None, encoder, dictation)
        
        elif ObjectIsCommand(plist, SpeechPacket):
            self.logger.debug("Decoding speech packet")
            speechPacket = SpeechPacket(plist)
            if speechPacket.refId in self.speech:
                (decoder, encoder, dictation) = self.speech[speechPacket.refId]
                if decoder:
                    pcm = decoder.decode(speechPacket.packets)
                else:
                    pcm = SpeechPacket.data # <- probably data... if pcm
                encoder.encode(pcm)
            else:
                self.logger.debug("Got a speech packet that did not match any current request")
                
        elif plist['class'] == 'StartCorrectedSpeechRequest':
            self.process_recognized_speech({u'hypotheses': [{'confidence': 1.0, 'utterance': plist['properties']['utterance']}]}, plist['aceId'], False)
    
        elif ObjectIsCommand(plist, FinishSpeech):
            self.logger.debug("End of speech received")
            finishSpeech = FinishSpeech(plist)
            if finishSpeech.refId in self.speech:
                (decoder, encoder, dictation) = self.speech[finishSpeech.refId]
                if decoder:
                    decoder.destroy()
                flacBin = None
                if encoder:
                    encoder.finish()
                    flacBin = encoder.getBinary()
                    encoder.destroy()
                del self.speech[finishSpeech.refId]
                if flacBin != None:
                    self.logger.info("Sending flac to google for recognition")
                    try:
                        self.current_google_request = self.httpClient.make_google_request(flacBin, finishSpeech.refId, dictation, language=self.assistant.language, allowCurses=True)
                    except (AttributeError, TypeError):
                        self.logger.warning("Unable to find language record for this assistant. Try turning Siri off and then back on.")
                else:
                    self.logger.info("There was no speech")
            else:
                self.logger.debug("Got a finish speech packet that did not match any current request")
                
        elif ObjectIsCommand(plist, CancelRequest):
            # this is probably called when we need to kill a plugin
            # wait for thread to finish a send
            self.logger.debug("Should cancel current request")
            cancelRequest = CancelRequest(plist)
            if cancelRequest.refId in self.speech:
                (decoder, encoder, dictation) = self.speech[cancelRequest.refId]
                if decoder:
                    decoder.destroy()
                if encoder:
                    encoder.finish()
                    encoder.destroy()
                del self.speech[cancelRequest.refId]
            if self.current_google_request != None:
                self.current_google_request.cancel()
                # if a google request is running (follow up listening..., plugin might get killed there by user)
                if self.current_running_plugin != None:
                    if self.current_running_plugin.waitForResponse != None:
                        self.current_running_plugin._abortPluginRun()
                        self.current_running_plugin.waitForResponse.set()
                        
            # if a plugin is running (processing, but not waiting for data from the device we kill it)   
            if self.current_running_plugin != None:
                if self.current_running_plugin.waitForResponse == None:
                    self.current_running_plugin._abortPluginRun()     
            
            self.send_object(CancelSucceeded(cancelRequest.aceId))
            
        elif ObjectIsCommand(plist, RollbackRequest):
            pass
        
        elif ObjectIsCommand(plist, SyncChunk):
            chunk = SyncChunk(plist)
            previous = self.syncAnchors[chunk.key] if chunk.key in self.syncAnchors else None
            if previous != None:
                if previous.generation != chunk.preGen:
                    chunkDenied = SyncChunkDenied(chunk.aceId)
                    self.send_object(chunkDenied)
                    return 
            current = SyncAnchor()
            current.generation = chunk.postGen
            current.value = chunk.postGen
            current.validity = chunk.validity
            current.key = chunk.key
            self.syncAnchors[current.key] = current
            chunkAccepted = SyncChunkAccepted(chunk.aceId)
            chunkAccepted.current = current
            self.send_object(chunkAccepted)
            pass

        elif ObjectIsCommand(plist, GetSessionCertificate):
            getSessionCertificate = GetSessionCertificate(plist)
            sessionCA_DER = crypto.dump_certificate(crypto.FILETYPE_ASN1, self.server.sessionCACert)
            sessionCert_DER = crypto.dump_certificate(crypto.FILETYPE_ASN1, self.server.sessionCert)
            response = GetSessionCertificateResponse(getSessionCertificate.aceId, sessionCA_DER, sessionCert_DER)
            self.send_object(response)

        elif ObjectIsCommand(plist, CreateSessionInfoRequest):
            # how does a positive answer look like?
            createSessionInfoRequest = CreateSessionInfoRequest(plist)
            
            #success = CreateSessionInfoResponse(createSessionInfoRequest.aceId)
            #success.sessionInfo = biplist.Data("\x01\x02BLABLABLBALBALBALBALBALBALBALBA")
            #success.validityDuration = 9600
            
            #self.send_object(success)
            fail = CommandFailed(createSessionInfoRequest.aceId)
            fail.reason = "Not authenticated"
            fail.errorCode = 0
            self.send_object(fail)

            ##self.send_plist({"class":"SessionValidationFailed", "properties":{"errorCode":"UnsupportedHardwareVersion"}, "aceId": str(uuid.uuid4()), "refId":plist['aceId'], "group":"com.apple.ace.system"})
            
        elif ObjectIsCommand(plist, CreateAssistant):
            createAssistant = CreateAssistant(plist)
            #create a new assistant
            helper = Assistant()     
            helper.assistantId = str.upper(str(uuid.uuid4()))
            helper.language = createAssistant.language
            helper.activationToken = createAssistant.activationToken
            helper.connectionType = createAssistant.connectionType
            helper.validationData = createAssistant.validationData
            c = self.dbConnection.cursor()
            noError = True
            try:
                c.execute("insert into assistants(assistantId, assistant) values (?,?)", (helper.assistantId, helper))
                self.dbConnection.commit()
            except sqlite3.Error: 
                noError = False
            c.close()
            if noError:
                self.assistant = helper
                assiCreatedCMD = AssistantCreated(createAssistant.aceId)
                assiCreatedCMD.assistantId = helper.assistantId
                assiCreatedCMD.speechId = str(uuid.uuid4())
                self.send_object(assiCreatedCMD)
            else:
                cmdFailed = CommandFailed(createAssistant.aceId)
                cmdFailed.reason = "Database Error"
                cmdFailed.errorCode = 2
                self.send_object(cmdFailed)
            
        elif ObjectIsCommand(plist, SetAssistantData):
            setAssistantData = SetAssistantData(plist)
            # fill assistant 
            if self.assistant != None:
                try:
                    c = self.dbConnection.cursor()
                    assi_id = self.assistant.assistantId
                    self.assistant.initializeFromPlist(setAssistantData.to_plist())
                    self.assistant.assistantId = assi_id
                    #Record the user firstName and nickName                    
                    try:                        
                        self.assistant.firstName = self.assistant.meCards[0].firstName.encode("utf-8")
                    except:
                        self.assistant.firstName = u''                        
                    try:                        
                        self.assistant.nickName = self.assistant.meCards[0].nickName.encode("utf-8")       
                    except:
                        self.assistant.nickName = u''
                    #Done recording
                    c.execute("update assistants set assistant = ? where assistantId = ?", (self.assistant, self.assistant.assistantId))
                    self.dbConnection.commit()
                    c.close()
                except:
                    cmdFailed = CommandFailed(setAssistantData.aceId)
                    cmdFailed.reason = "Database Error"
                    cmdFailed.errorCode = 2
                    self.send_object(cmdFailed)
                    self.logger.exception("Database Error on setting assistant data")
            else:
                cmdFailed = CommandFailed(setAssistantData.aceId)
                cmdFailed.reason = "Assistant to set data not found"
                cmdFailed.errorCode = 2
                self.send_object(cmdFailed)
                self.logger.warning("Trying to set assistant data without having a valid assistant")
                
        elif ObjectIsCommand(plist, LoadAssistant):
            loadAssistant = LoadAssistant(plist)
            try:
                c = self.dbConnection.cursor()
                c.execute("select assistant from assistants where assistantId = ?", (loadAssistant.assistantId,))
                self.dbConnection.commit()
                result = c.fetchone()
                if result == None:
                    self.send_object(AssistantNotFound(loadAssistant.aceId))
                    self.logger.warning("Assistant not found in database!!")                        
                else:
                    self.assistant = result[0]
                    #update assistant from LoadAssistant
                    self.assistant.language = loadAssistant.language
                    self.assistant.connectionType = loadAssistant.connectionType
                    
                    if self.assistant.language == '' or self.assistant.language == None:
                        self.logger.error ("No language is set for this assistant")                        
                        c.execute("delete from assistants where assistantId = ?", (plist['properties']['assistantId'],))
                        self.dbConnection.commit()
                        cmdFailed = CommandFailed(loadAssistant.aceId)
                        cmdFailed.reason = "Database error Assistant not found or language settings"
                        cmdFailed.errorCode = 2
                        self.send_object(cmdFailed)
                    else:                        
                        loaded = AssistantLoaded(loadAssistant.aceId)
                        loaded.version = "20111216-32234-branches/telluride?cnxn=293552c2-8e11-4920-9131-5f5651ce244e"
                        loaded.requestSync = 0
                        try:
                            loaded.dataAnchor = self.assistant.anchor
                        except:
                            loaded.dataAnchor = "removed"
                        self.send_object(loaded)
                c.close()
            except:
                self.send_object(AssistantNotFound(loadAssistant.aceId))
                self.logger.warning("Database error on fetching assistant")
                
        elif ObjectIsCommand(plist, DestroyAssistant):
            destroyAssistant = DestroyAssistant(plist)
            try:
                c = self.dbConnection.cursor()
                c.execute("delete from assistants where assistantId = ?", (plist['properties']['assistantId'],))
                self.dbConnection.commit()
                c.close()
                destroyed = AssistantDestroyed(destroyAssistant.aceId)
                destroyed.assistantId = destroyAssistant.assistantId
                self.send_object(destroyed)
            except:
                self.send_object(AssistantNotFound(destroyAssistant.aceId))
                self.logger.error("Database error on deleting assistant")
                
        elif ObjectIsCommand(plist, StartRequest):
            startRequest = StartRequest(plist)
            #this should also be handeled by special plugins, so lets call the plugin handling stuff
            self.process_recognized_speech({'hypotheses': [{'utterance': startRequest.utterance, 'confidence': 1.0}]}, startRequest.aceId, False)
        pass
class SiriProtocolHandler(Siri):
    __not_recognized =  {"de-DE": u"Entschuldigung, ich verstehe \"{0}\" nicht.", "en-US": u"Sorry I don't understand {0}", "fr-FR": u"Désolé je ne comprends pas ce que \"{0}\" veut dire."}
    __websearch =  {"de-DE": u"Websuche", "en-US": u"Websearch", "fr-FR": u"Rechercher sur le Web"}
    
    
    def __init__(self, server, peer):
        Siri.__init__(self, server, peer)
        self.lastPing = 0
        self.pong = 0
        self.plugin_lastAceId = ""
        self.current_running_plugin = None
        self.dbConnection = server.dbConnection
        self.assistant = None
        self.speech = dict()
        self.httpClient = AsyncOpenHttp(self.handle_google_data)
        self.current_google_request = None
        self.current_location = None
    
    def handle_google_data(self, body, requestId, dictation):
        self.current_google_request = None
        if (body != None):
            googleAnswer = json.loads(body)
            self.process_recognized_speech(googleAnswer, requestId, dictation)
        else:
            self.send_object(SpeechFailure(requestId, "No connection to Google possible"))
            self.send_object(RequestCompleted(requestId))
        
    def received_ping(self, numOfPing):
        self.pong += 1
        self.lastPing = numOfPing
        self.send_pong(self.pong)
        
    def process_recognized_speech(self, googleJson, requestId, dictation):
        possible_matches = googleJson['hypotheses']
        if len(possible_matches) > 0:
            best_match = possible_matches[0]['utterance']
            best_match = best_match[0].upper()+best_match[1:]
            best_match_confidence = possible_matches[0]['confidence']
            self.logger.info(u"Best matching result: \"{0}\" with a confidence of {1}%".format(best_match, round(float(best_match_confidence)*100,2)))
            # construct a SpeechRecognized
            token = Token(best_match, 0, 0, 1000.0, True, True)
            interpretation = Interpretation([token])
            phrase = Phrase(lowConfidence=False, interpretations=[interpretation])
            recognition = Recognition([phrase])
            recognized = SpeechRecognized(requestId, recognition)
            
            if not dictation:
                if self.current_running_plugin == None:
                    plugin = PluginManager.getPluginForImmediateExecution(self.assistant.assistantId, best_match, self.assistant.language, (self.send_object, self.send_plist, self.assistant, self.current_location))
                    if plugin != None:
                        plugin.refId = requestId
                        plugin.connection = self
                        self.current_running_plugin = plugin
                        self.send_object(recognized)
                        self.current_running_plugin.start()
                    else:
                        self.send_object(recognized)
                        view = AddViews(requestId)
                        errorText = SiriProtocolHandler.__not_recognized[self.assistant.language] if self.assistant.language in SiriProtocolHandler.__not_recognized else SiriProtocolHandler.__not_recognized["en-US"]
                        view.views += [AssistantUtteranceView(errorText.format(best_match), errorText.format(best_match))]
                        websearchText = SiriProtocolHandler.__websearch[self.assistant.language] if self.assistant.language in SiriProtocolHandler.__websearch else SiriProtocolHandler.__websearch["en-US"]
                        button = Button(text=websearchText)
                        cmd = SendCommands()
                        cmd.commands = [StartRequest(utterance=u"^webSearchQuery^=^{0}^^webSearchConfirmation^=^Yes^".format(best_match))]
                        button.commands = [cmd]
                        view.views.append(button)
                        self.send_object(view)
                        self.send_object(RequestCompleted(requestId))
                elif self.current_running_plugin.waitForResponse != None:
                    # do we need to send a speech recognized here? i.d.k
                    self.current_running_plugin.response = best_match
                    self.current_running_plugin.refId = requestId
                    self.current_running_plugin.waitForResponse.set()
                else:
                    self.send_object(recognized)
                    self.send_object(RequestCompleted(requestId))
            else:
                self.send_object(recognized)
                self.send_object(RequestCompleted(requestId))
    
    def received_plist(self, plist):
        self.logger.debug("Packet with class: {0}".format(plist['class']))
        self.logger.debug("packet with content:\n{0}".format(pprint.pformat(plist, width=40)))
        
        # first handle speech stuff
        
        if 'refId' in plist:
            # if the following holds, this packet is an answer to a request by a plugin
            if plist['refId'] == self.plugin_lastAceId and self.current_running_plugin != None:
                if self.current_running_plugin.waitForResponse != None:
                    # just forward the object to the 
                    # don't change it's refId, further requests must reference last FinishSpeech
                    self.logger.debug("Forwarding object to plugin")
                    self.plugin_lastAceId = None
                    self.current_running_plugin.response = plist if plist['class'] != "StartRequest" else plist['properties']['utterance']
                    self.current_running_plugin.waitForResponse.set()
                    return
        
        if ObjectIsCommand(plist, StartSpeechRequest) or ObjectIsCommand(plist, StartSpeechDictation):
            self.logger.debug("New start of speech received")
            startSpeech = None
            if ObjectIsCommand(plist, StartSpeechDictation):
                dictation = True
                startSpeech = StartSpeechDictation(plist)
            else:
                dictation = False
                startSpeech = StartSpeechRequest(plist)
    
            decoder = speex.Decoder()
            encoder = flac.Encoder()
            speexUsed = False
            if startSpeech.codec == StartSpeech.CodecSpeex_WB_Quality8Value:
                decoder.initialize(mode=speex.SPEEX_MODEID_WB)
                encoder.initialize(16000, 1, 16)
                speexUsed = True
            elif startSpeech.codec == StartSpeech.CodecSpeex_NB_Quality7Value:
                decoder.initialize(mode=speex.SPEEX_MODEID_NB)
                encoder.initialize(16000, 1, 16)
                speexUsed = True
            elif startSpeech.codec == StartSpeech.CodecPCM_Mono_16Bit_8000HzValue:
                encoder.initialize(8000, 1, 16)
            elif startSpeech.codec == StartSpeech.CodecPCM_Mono_16Bit_11025HzValue:
                encoder.initialize(11025, 1, 16)
            elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_16000HzValue:
                encoder.initialize(16000, 1, 16)
            elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_22050HzValue:
                encoder.initialize(22050, 1, 16)
            elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_32000HzValue:
                encoder.initialize(32000, 1, 16)
            # we probably need resampling for sample rates other than 16kHz...
            
            self.speech[startSpeech.aceId] = (decoder if speexUsed else None, encoder, dictation)
        
        elif ObjectIsCommand(plist, SpeechPacket):
            self.logger.debug("Decoding speech packet")
            speechPacket = SpeechPacket(plist)
            (decoder, encoder, dictation) = self.speech[speechPacket.refId]
            if decoder:
                pcm = decoder.decode(speechPacket.packets)
            else:
                pcm = SpeechPacket.data # <- probably data... if pcm
            encoder.encode(pcm)
                
        elif plist['class'] == 'StartCorrectedSpeechRequest':
            self.process_recognized_speech({u'hypotheses': [{'confidence': 1.0, 'utterance': plist['properties']['utterance']}]}, plist['aceId'], False)
    
        elif ObjectIsCommand(plist, FinishSpeech):
            self.logger.debug("End of speech received")
            finishSpeech = FinishSpeech(plist)
            (decoder, encoder, dictation) = self.speech[finishSpeech.refId]
            if decoder:
                decoder.destroy()
            encoder.finish()
            flacBin = encoder.getBinary()
            encoder.destroy()
            del self.speech[finishSpeech.refId]
            
            self.logger.info("Sending flac to google for recognition")
            try:
                self.current_google_request = self.httpClient.make_google_request(flacBin, finishSpeech.refId, dictation, language=self.assistant.language, allowCurses=True)
            except AttributeError, TypeError:
                self.logger.warning("Unable to find language record for this assistant. Try turning Siri off and then back on.")
                
        elif ObjectIsCommand(plist, CancelRequest):
                # this is probably called when we need to kill a plugin
                # wait for thread to finish a send
                self.logger.debug("Should cancel current request")
                cancelRequest = CancelRequest(plist)
                if cancelRequest.refId in self.speech:
                    del self.speech[cancelRequest.refId]
                if self.current_google_request != None:
                    self.current_google_request.cancel()
                self.send_object(CancelSucceeded(cancelRequest.aceId))
class SiriProtocolHandler(Siri):
    __not_recognized =  {"zh-HK": u"对不起,我不知道“{0}”是什么意思。", "zh-TW": u"对不起,我不知道“{0}”是什么意思。", "ja-JP": u"申し訳ありませんが、私は理解していない '{0}", "id-ID": u"Maaf, Saya tidak mengerti apa yang anda maksud dengan '{0}'.", "en-US": u"I don't know what you mean by ‘{0}’.", "fr-FR": u"Désolé je ne comprends pas ce que \"{0}\" veut dire.", "zh-CN": u"对不起,我不知道“{0}”是什么意思。"}
    __websearch =  {"zh-HK": u"搜索网页", "zh-TW": u"搜索网页", "ja-JP": u"Webを検索", "id-ID": u"cari di internet", "en-US": u"Search the Web", "fr-FR": u"Rechercher sur le Web", "zh-CN": u"搜索网页"}
    __scheduling_interval_timeout__ = 20
    __timeout_delay = 10
    
    def __init__(self, server, peer):
        Siri.__init__(self, server, peer)
        self.lastPing = 0
        self.pong = 0
        self.plugin_lastAceId = ""
        self.current_running_plugin = None
        self.dbConnection = server.dbConnection
        self.assistant = None
        self.speech = dict()
        self.httpClient = AsyncOpenHttp(self.handle_google_data)
        self.current_google_request = None
        self.current_location = None
        self.lastPingTime = time.time()
        self.timeoutschedule = twisted.internet.reactor.callLater(SiriProtocolHandler.__scheduling_interval_timeout__, self.checkTimeout)
        
    def seconds_since_last_ping(self):
        return time.time() - self.lastPingTime
    
    def connectionLost(self, reason):
        try:
            self.timeoutschedule.cancel()
        except:
            pass
        if self.current_google_request != None:
                self.current_google_request.cancel()
        #ensure all decoder/encoder attemps are closed
        for key in self.speech.keys():
            (decoder, encoder, _) = self.speech[key]
            if decoder:
                decoder.destroy()
            if encoder:
                encoder.finish()
                encoder.destroy()
        del self.speech
        self.current_running_plugin = None
        self.dbConnection = None
        self.httpClient = None
        Siri.connectionLost(self, reason)
    
    def checkTimeout(self):
        if self.seconds_since_last_ping() > SiriProtocolHandler.__timeout_delay:
            self.logger.info("Connection timed out")
            self.transport.loseConnection()
        else:
            self.timeoutschedule = twisted.internet.reactor.callLater(SiriProtocolHandler.__scheduling_interval_timeout__, self.checkTimeout)
    
    def handle_google_data(self, body, requestId, dictation):
        self.current_google_request = None
        if (body != None):
            googleAnswer = json.loads(body)
            for i in xrange(0,len(googleAnswer['hypotheses'])-1):
                utterance = googleAnswer['hypotheses'][i]['utterance']
                if len(utterance) == 1:
                    utterance = utterance.upper()
                else:
                    utterance = utterance[0].upper() + utterance[1:]
                googleAnswer['hypotheses'][i]['utterance'] = utterance
            self.process_recognized_speech(googleAnswer, requestId, dictation)
        else:
            self.send_object(SpeechFailure(requestId, "No connection to Google possible"))
            self.send_object(RequestCompleted(requestId))
        
    def received_ping(self, numOfPing):
        self.pong += 1
        self.lastPing = numOfPing
        self.lastPingTime = time.time()
        self.send_pong(self.pong)
        
    def process_recognized_speech(self, googleJson, requestId, dictation):
        possible_matches = googleJson['hypotheses']
        if len(possible_matches) > 0:
            best_match = possible_matches[0]['utterance']
            best_match_confidence = possible_matches[0]['confidence']
            self.logger.info(u"Best matching result: \"{0}\" with a confidence of {1}%".format(best_match, round(float(best_match_confidence) * 100, 2)))
            # construct a SpeechRecognized
            token = Token(best_match, 0, 0, 1000.0, True, True)
            interpretation = Interpretation([token])
            phrase = Phrase(lowConfidence=False, interpretations=[interpretation])
            recognition = Recognition([phrase])
            recognized = SpeechRecognized(requestId, recognition)
            
            if not dictation:
                if self.current_running_plugin == None:
                    plugin = PluginManager.getPluginForImmediateExecution(self.assistant.assistantId, best_match, self.assistant.language, (self.send_object, self.send_plist, self.assistant, self.current_location))
                    if plugin != None:
                        plugin.refId = requestId
                        plugin.connection = self
                        self.current_running_plugin = plugin
                        self.send_object(recognized)
                        self.current_running_plugin.start()
                    else:
                        self.send_object(recognized)
                        view = UIAddViews(requestId)
                        errorText = SiriProtocolHandler.__not_recognized[self.assistant.language] if self.assistant.language in SiriProtocolHandler.__not_recognized else SiriProtocolHandler.__not_recognized["en-US"]
                        errorView = UIAssistantUtteranceView()
                        errorView.text = errorText.format(best_match)
                        errorView.speakableText = errorText.format(best_match)
                        view.views = [errorView]
                        websearchText = SiriProtocolHandler.__websearch[self.assistant.language] if self.assistant.language in SiriProtocolHandler.__websearch else SiriProtocolHandler.__websearch["en-US"]
                        button = UIButton()
                        button.text = websearchText
                        cmd = SendCommands()
                        cmd.commands = [StartRequest(utterance=u"^webSearchQuery^=^{0}^^webSearchConfirmation^=^Yes^".format(best_match))]
                        button.commands = [cmd]
                        view.views.append(button)
                        self.send_object(view)
                        self.send_object(RequestCompleted(requestId))
                elif self.current_running_plugin.waitForResponse != None:
                    # do we need to send a speech recognized here? i.d.k
                    self.current_running_plugin.response = best_match
                    self.current_running_plugin.refId = requestId
                    self.current_running_plugin.waitForResponse.set()
                else:
                    self.send_object(recognized)
                    self.send_object(RequestCompleted(requestId))
            else:
                self.send_object(recognized)
                self.send_object(RequestCompleted(requestId))
    
    def received_plist(self, plist):
        self.logger.debug("Got packet with class: {0}".format(plist['class']))
        self.logger.debug("packet with content:\n{0}".format(pprint.pformat(plist, width=40)))
        
        # first handle speech stuff
        
        if 'refId' in plist:
            # if the following holds, this packet is an answer to a request by a plugin
            if plist['refId'] == self.plugin_lastAceId and self.current_running_plugin != None:
                if self.current_running_plugin.waitForResponse != None:
                    # just forward the object to the
                    # don't change it's refId, further requests must reference last FinishSpeech
                    self.logger.debug("Forwarding object to plugin")
                    self.plugin_lastAceId = None
                    self.current_running_plugin.response = plist if plist['class'] != "StartRequest" else plist['properties']['utterance']
                    self.current_running_plugin.waitForResponse.set()
                    return
        
        if ObjectIsCommand(plist, StartSpeechRequest) or ObjectIsCommand(plist, StartSpeechDictation):
            self.logger.debug("New start of speech received")
            startSpeech = None
            if ObjectIsCommand(plist, StartSpeechDictation):
                dictation = True
                startSpeech = StartSpeechDictation(plist)
            else:
                dictation = False
                startSpeech = StartSpeechRequest(plist)
    
            decoder = speex.Decoder()
            encoder = flac.Encoder()
            speexUsed = False
            if startSpeech.codec == StartSpeech.CodecSpeex_WB_Quality8Value:
                decoder.initialize(mode=speex.SPEEX_MODEID_WB)
                encoder.initialize(16000, 1, 16)
                speexUsed = True
            elif startSpeech.codec == StartSpeech.CodecSpeex_NB_Quality7Value:
                decoder.initialize(mode=speex.SPEEX_MODEID_NB)
                encoder.initialize(16000, 1, 16)
                speexUsed = True
            elif startSpeech.codec == StartSpeech.CodecPCM_Mono_16Bit_8000HzValue:
                encoder.initialize(8000, 1, 16)
            elif startSpeech.codec == StartSpeech.CodecPCM_Mono_16Bit_11025HzValue:
                encoder.initialize(11025, 1, 16)
            elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_16000HzValue:
                encoder.initialize(16000, 1, 16)
            elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_22050HzValue:
                encoder.initialize(22050, 1, 16)
            elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_32000HzValue:
                encoder.initialize(32000, 1, 16)
            # we probably need resampling for sample rates other than 16kHz...
            
            self.speech[startSpeech.aceId] = (decoder if speexUsed else None, encoder, dictation)
        
        elif ObjectIsCommand(plist, SpeechPacket):
            self.logger.debug("Decoding speech packet")
            speechPacket = SpeechPacket(plist)
            if speechPacket.refId in self.speech:
                (decoder, encoder, dictation) = self.speech[speechPacket.refId]
                if decoder:
                    pcm = decoder.decode(speechPacket.packets)
                else:
                    pcm = SpeechPacket.data # <- probably data... if pcm
                encoder.encode(pcm)
            else:
                self.logger.debug("Got a speech packet that did not match any current request")
                
        elif plist['class'] == 'StartCorrectedSpeechRequest':
            self.process_recognized_speech({u'hypotheses': [{'confidence': 1.0, 'utterance': plist['properties']['utterance']}]}, plist['aceId'], False)
    
        elif ObjectIsCommand(plist, FinishSpeech):
            self.logger.debug("End of speech received")
            finishSpeech = FinishSpeech(plist)
            if finishSpeech.refId in self.speech:
                (decoder, encoder, dictation) = self.speech[finishSpeech.refId]
                if decoder:
                    decoder.destroy()
                flacBin = None
                if encoder:
                    encoder.finish()
                    flacBin = encoder.getBinary()
                    encoder.destroy()
                del self.speech[finishSpeech.refId]
                if flacBin != None:
                    self.logger.info("Sending flac to google for recognition")
                    try:
                        self.current_google_request = self.httpClient.make_google_request(flacBin, finishSpeech.refId, dictation, language=self.assistant.language, allowCurses=True)
                    except (AttributeError, TypeError):
                        self.logger.warning("Unable to find language record for this assistant. Try turning Siri off and then back on.")
                else:
                    self.logger.info("There was no speech")
            else:
                self.logger.debug("Got a finish speech packet that did not match any current request")
                
        elif ObjectIsCommand(plist, CancelRequest):
            # this is probably called when we need to kill a plugin
            # wait for thread to finish a send
            self.logger.debug("Should cancel current request")
            cancelRequest = CancelRequest(plist)
            if cancelRequest.refId in self.speech:
                (decoder, encoder, dictation) = self.speech[cancelRequest.refId]
                if decoder:
                    decoder.destroy()
                if encoder:
                    encoder.finish()
                    encoder.destory()
                del self.speech[cancelRequest.refId]
            if self.current_google_request != None:
                self.current_google_request.cancel()
                # if a google request is running (follow up listening..., plugin might get killed there by user)
                if self.current_running_plugin != None:
                    if self.current_running_plugin.waitForResponse != None:
                        self.current_running_plugin._abortPluginRun()
                        self.current_running_plugin.waitForResponse.set()
                        
            # if a plugin is running (processing, but not waiting for data from the device we kill it)
            if self.current_running_plugin != None:
                if self.current_running_plugin.waitForResponse == None:
                    self.current_running_plugin._abortPluginRun()
            
            self.send_object(CancelSucceeded(cancelRequest.aceId))
            
        elif ObjectIsCommand(plist, RollbackRequest):
            pass

        elif ObjectIsCommand(plist, GetSessionCertificate):
            getSessionCertificate = GetSessionCertificate(plist)
            sessionCA_DER = crypto.dump_certificate(crypto.FILETYPE_ASN1, self.server.sessionCACert)
            sessionCert_DER = crypto.dump_certificate(crypto.FILETYPE_ASN1, self.server.sessionCert)
            response = GetSessionCertificateResponse(getSessionCertificate.aceId, sessionCA_DER, sessionCert_DER)
            self.send_object(response)

        elif ObjectIsCommand(plist, CreateSessionInfoRequest):
            # how does a positive answer look like?
            createSessionInfoRequest = CreateSessionInfoRequest(plist)
            fail = CommandFailed(createSessionInfoRequest.aceId)
            fail.reason = "Not authenticated"
            fail.errorCode = 0
            self.send_object(fail)

            #self.send_plist({"class":"SessionValidationFailed", "properties":{"errorCode":"UnsupportedHardwareVersion"}, "aceId": str(uuid.uuid4()), "refId":plist['aceId'], "group":"com.apple.ace.system"})
            
        elif plist['class'] == 'CreateAssistant':
            #create a new assistant
            helper = Assistant()
            helper.assistantId = str.upper(str(uuid.uuid4()))
            c = self.dbConnection.cursor()
            noError = True
            try:
                c.execute("insert into assistants(assistantId, assistant) values (?,?)", (helper.assistantId, helper))
                self.dbConnection.commit()
            except sqlite3.Error:
                noError = False
            c.close()
            if noError:
                self.assistant = helper
                self.send_plist({"class": "AssistantCreated", "properties": {"speechId": str(uuid.uuid4()), "assistantId": helper.assistantId}, "group":"com.apple.ace.system", "callbacks":[], "aceId": str(uuid.uuid4()), "refId": plist['aceId']})
            else:
                self.send_plist({"class":"CommandFailed", "properties": {"reason":"Database error", "errorCode":2, "callbacks":[]}, "aceId": str(uuid.uuid4()), "refId": plist['aceId'], "group":"com.apple.ace.system"})
            
        elif plist['class'] == 'SetAssistantData':
            # fill assistant
            if self.assistant != None:
                try:
                    c = self.dbConnection.cursor()
                    objProperties = plist['properties']
                    self.assistant.censorSpeech = objProperties['censorSpeech']
                    self.assistant.timeZoneId = objProperties['timeZoneId']
                    self.assistant.language = objProperties['language']
                    self.assistant.region = objProperties['region']
                    #Here it is possible to support more languages combined with anyvoice package
                    #We can make assumption that the region will define the language.                     
                    if config.forcelanguage==True:                   
                        #Chinese Example
                        if self.assistant.region=='id_ID':
                            self.assistant.language = "id-ID"                   
                            self.logger.debug("Forced language to {0}".format(self.assistant.language))
                        if self.assistant.region=='zh_CN':
                            self.assistant.language = "zh-CN"
                            self.logger.debug("Forced language to {0}".format(self.assistant.language))
                        if self.assistant.region=='zh_TW':
                            self.assistant.language = "zh-TW"
                            self.logger.debug("Forced language to {0}".format(self.assistant.language))
                        if self.assistant.region=='ko_KR':
                            self.assistant.language = "ko-KR"
                            self.logger.debug("Forced language to {0}".format(self.assistant.language))
                        if self.assistant.region=='zh_HK':
                            self.assistant.language = "zh-HK"
                            self.logger.debug("Forced language to {0}".format(self.assistant.language))
			if self.assistant.region=='ru_RU':
                            self.assistant.language = "ru-RU"
                            self.logger.debug("Forced language to {0}".format(self.assistant.language))
			if self.assistant.region=='ja_JP':
                            self.assistant.language = "ja-JP"
                            self.logger.debug("Forced language to {0}".format(self.assistant.language))

                    #Record the user firstName and nickName
                    try:
                        self.assistant.firstName = objProperties["meCards"][0]["properties"]["firstName"].encode("utf-8")
                    except KeyError:
                        self.assistant.firstName = u''
                    try:
                        self.assistant.nickName = objProperties["meCards"][0]["properties"]["nickName"].encode("utf-8")
                    except KeyError:
                        self.assistant.nickName = u''
                    #Done recording
                    c.execute("update assistants set assistant = ? where assistantId = ?", (self.assistant, self.assistant.assistantId))
                    self.dbConnection.commit()
                    c.close()
                except:
                    self.send_plist({"class":"CommandFailed", "properties": {"reason":"Database error", "errorCode":2, "callbacks":[]}, "aceId": str(uuid.uuid4()), "refId": plist['aceId'], "group":"com.apple.ace.system"})
                    self.logger.error("Database Error on setting assistant data")
            else:
                self.send_plist({"class":"CommandFailed", "properties": {"reason":"Assistant to set data not found", "errorCode":2, "callbacks":[]}, "aceId": str(uuid.uuid4()), "refId": plist['aceId'], "group":"com.apple.ace.system"})
                self.logger.warning("Trying to set assistant data without having a valid assistant")
        elif plist['class'] == 'LoadAssistant':
            try:
                c = self.dbConnection.cursor()
                c.execute("select assistant from assistants where assistantId = ?", (plist['properties']['assistantId'],))
                self.dbConnection.commit()
                result = c.fetchone()
                if result == None:
                    self.send_plist({"class": "AssistantNotFound", "aceId":str(uuid.uuid4()), "refId":plist['aceId'], "group":"com.apple.ace.system"})
                    self.logger.warning("Assistant not found in database!!")
                else:
                    self.assistant = result[0]
                    if self.assistant.language == '' or self.assistant.language == None:
                        self.logger.error ("No language is set for this assistant")
                        c.execute("delete from assistants where assistantId = ?", (plist['properties']['assistantId'],))
                        self.dbConnection.commit()
                        self.send_plist({"class":"CommandFailed", "properties": {"reason":"Database error Assistant not found or language settings ", "errorCode":2, "callbacks":[]}, "aceId": str(uuid.uuid4()), "refId": plist['aceId'], "group":"com.apple.ace.system"})
                    else:
                        self.send_plist({"class": "AssistantLoaded", "properties": {"version": "20111216-32234-branches/telluride?cnxn=293552c2-8e11-4920-9131-5f5651ce244e", "requestSync":False, "dataAnchor":"removed"}, "aceId":str(uuid.uuid4()), "refId":plist['aceId'], "group":"com.apple.ace.system"})
                c.close()
            except:
                self.send_plist({"class": "AssistantNotFound", "aceId":str(uuid.uuid4()), "refId":plist['aceId'], "group":"com.apple.ace.system"})
                self.logger.warning("Database error on fetching assistant")
                
        elif plist['class'] == 'DestroyAssistant':
            try:
                c = self.dbConnection.cursor()
                c.execute("delete from assistants where assistantId = ?", (plist['properties']['assistantId'],))
                self.dbConnection.commit()
                c.close()
                self.send_plist({"class": "AssistantDestroyed", "properties": {"assistantId": plist['properties']['assistantId']}, "aceId":str(uuid.uuid4()), "refId":plist['aceId'], "group":"com.apple.ace.system"})
            except:
                self.send_plist({"class": "AssistantNotFound", "aceId":str(uuid.uuid4()), "refId":plist['aceId'], "group":"com.apple.ace.system"})
                self.logger.error("Database error on deleting assistant")
                
        elif plist['class'] == 'StartRequest':
            #this should also be handeled by special plugins, so lets call the plugin handling stuff
            self.process_recognized_speech({'hypotheses': [{'utterance': plist['properties']['utterance'], 'confidence': 1.0}]}, plist['aceId'], False)
        pass
Example #12
0
class HandleConnection(ssl_dispatcher):
    __not_recognized = {
        "de-DE": u"Entschuldigung, ich verstehe \"{0}\" nicht.",
        "en-US": u"Sorry I don't understand {0}.\nConfidence: {1}%"
    }
    __websearch = {"de-DE": u"Websuche", "en-US": u"Websearch"}

    def __init__(self, conn, lang):
        asyncore.dispatcher_with_send.__init__(self, conn)

        self.ssled = False
        self.secure_connection(certfile="server.passless.crt",
                               keyfile="server.passless.key",
                               server_side=True)

        self.consumed_ace = False
        self.data = ""
        self.binary_mode = False
        self.decompressor = zlib.decompressobj()
        self.compressor = zlib.compressobj()
        self.unzipped_input = ""
        self.unzipped_output_buffer = ""
        self.output_buffer = ""
        self.speech = dict()
        self.pong = 1
        self.ping = 0
        self.httpClient = AsyncOpenHttp(self.handle_google_data,
                                        self.handle_google_failure)
        self.gotGoogleAnswer = False
        self.googleData = None
        self.lastRequestId = None
        self.dictation = None
        self.dbConnection = db.getConnection()
        self.assistant = None
        self.sendLock = threading.Lock()
        self.current_running_plugin = None
        self.current_location = None
        self.plugin_lastAceId = None
        self.logger = logging.getLogger("logger")
        self.lang = lang

    def handle_ssl_established(self):
        self.ssled = True

    def handle_ssl_shutdown(self):
        self.ssled = False

    def readable(self):
        if self.ssled:
            while self.socket.pending() > 0:
                self.handle_read_event()
        return True

    def handle_read(self):
        self.data += self.recv(8192)
        if not self.binary_mode:
            if "\r\n\r\n" in self.data:
                endOfHeader = self.data.find("\r\n\r\n") + 4
                self.header = self.data[:endOfHeader]
                self.data = self.data[endOfHeader:]
                self.logger.debug(
                    "--------------------------------------Header start------------------------------------"
                )
                self.logger.debug(self.header)
                self.logger.debug(
                    "---------------------------------------Header end-------------------------------------"
                )
                self.binary_mode = True
                self.header_complete = True
        else:
            if not self.consumed_ace:
                self.logger.debug(
                    "Received removing ace instruction: {0}".format(
                        repr(self.data[:4])))
                self.data = self.data[4:]
                self.consumed_ace = True
                self.output_buffer = "HTTP/1.1 200 OK\r\nServer: Apache-Coyote/1.1\r\nDate: " + formatdate(
                    timeval=None, localtime=False, usegmt=True
                ) + "\r\nConnection: close\r\n\r\n\xaa\xcc\xee\x02"
                #self.flush_output_buffer()

            # first process outstanding google answers THIS happens at least on each PING
            if self.gotGoogleAnswer:
                self.process_recognized_speech(self.googleData,
                                               self.lastRequestId,
                                               self.dictation)
                self.lastRequestId = None
                self.dictation = None
                self.googleData = None
                self.gotGoogleAnswer = False

            self.process_compressed_data()

    def handle_google_data(self, body, requestId, dictation):
        self.googleData = json.loads(body)
        self.lastRequestId = requestId
        self.dictation = dictation
        self.gotGoogleAnswer = True

    def handle_google_failure(self, requestId, dictation):
        self.googleData = None
        self.lastRequestId = requestId
        self.dictation = dictation
        self.gotGoogleAnswer = True

    def send_object(self, obj):
        self.send_plist(obj.to_plist())

    def send_plist(self, plist):
        self.sendLock.acquire()
        self.logger.debug("Sending:\n{0}".format(
            pprint.pformat(plist, width=40)))
        bplist = biplist.writePlistToString(plist)
        #
        self.unzipped_output_buffer = struct.pack('>BI', 2,
                                                  len(bplist)) + bplist
        self.flush_unzipped_output()
        self.sendLock.release()

    def send_pong(self, id):
        self.sendLock.acquire()
        self.unzipped_output_buffer = struct.pack('>BI', 4, id)
        self.flush_unzipped_output()
        self.sendLock.release()

    def process_recognized_speech(self, googleJson, requestId, dictation):
        if googleJson == None:
            # there was a network failure
            # is this the correct command to send?
            self.send_object(
                speechObjects.SpeechFailure(
                    requestId, "No connection to Google possible"))
            self.send_object(baseObjects.RequestCompleted(requestId))
        else:
            possible_matches = googleJson['hypotheses']
            if len(possible_matches) > 0:
                best_match = possible_matches[0]['utterance']
                best_match = best_match[0].upper() + best_match[1:]
                best_match_confidence = possible_matches[0]['confidence']
                self.logger.info(
                    u"Best matching result: \"{0}\" with a confidence of {1}%".
                    format(best_match,
                           round(float(best_match_confidence) * 100, 2)))
                # construct a SpeechRecognized
                token = speechObjects.Token(best_match, 0, 0, 1000.0, True,
                                            True)
                interpretation = speechObjects.Interpretation([token])
                phrase = speechObjects.Phrase(lowConfidence=False,
                                              interpretations=[interpretation])
                recognition = speechObjects.Recognition([phrase])
                recognized = speechObjects.SpeechRecognized(
                    requestId, recognition)

                if not dictation:
                    if self.current_running_plugin == None:
                        (clazz, method) = PluginManager.getPlugin(
                            best_match, self.assistant.language)
                        if clazz != None and method != None:
                            plugin = clazz(method, best_match,
                                           self.assistant.language,
                                           self.send_object, self.send_plist,
                                           self.assistant,
                                           self.current_location)
                            plugin.refId = requestId
                            plugin.connection = self
                            self.current_running_plugin = plugin
                            self.send_object(recognized)
                            self.current_running_plugin.start()
                        else:
                            self.send_object(recognized)
                            view = uiObjects.AddViews(requestId)
                            errorText = HandleConnection.__not_recognized[
                                self.assistant.
                                language] if self.assistant.language in HandleConnection.__not_recognized else HandleConnection.__not_recognized[
                                    "en-US"]
                            view.views += [
                                uiObjects.AssistantUtteranceView(
                                    errorText.format(
                                        best_match,
                                        round(
                                            float(best_match_confidence) * 100,
                                            2)),
                                    errorText.format(
                                        best_match,
                                        round(
                                            float(best_match_confidence) * 100,
                                            2)))
                            ]
                            websearchText = HandleConnection.__websearch[
                                self.assistant.
                                language] if self.assistant.language in HandleConnection.__websearch else HandleConnection.__websearch[
                                    "en-US"]
                            button = uiObjects.Button(text=websearchText)
                            cmd = systemObjects.SendCommands()
                            cmd.commands = [
                                systemObjects.StartRequest(
                                    utterance=
                                    u"^webSearchQuery^=^{0}^^webSearchConfirmation^=^Yes^"
                                    .format(best_match))
                            ]
                            button.commands = [cmd]
                            view.views.append(button)
                            self.send_object(view)
                            self.send_object(
                                baseObjects.RequestCompleted(requestId))
                    elif self.current_running_plugin.waitForResponse != None:
                        # do we need to send a speech recognized here? i.d.k
                        self.current_running_plugin.response = best_match
                        self.current_running_plugin.refId = requestId
                        self.current_running_plugin.waitForResponse.set()
                    else:
                        self.send_object(recognized)
                        self.send_object(
                            baseObjects.RequestCompleted(requestId))
                else:
                    self.send_object(recognized)
                    self.send_object(baseObjects.RequestCompleted(requestId))

    def process_compressed_data(self):
        self.unzipped_input += self.decompressor.decompress(self.data)
        self.data = ""
        while self.hasNextObj():
            reqObject = self.read_next_object_from_unzipped()
            if reqObject != None:
                self.logger.debug("Packet with class: {0}".format(
                    reqObject['class']))
                self.logger.debug("packet with content:\n{0}".format(
                    pprint.pformat(reqObject, width=40)))

                # first handle speech stuff

                if 'refId' in reqObject:
                    # if the following holds, this packet is an answer to a request by a plugin
                    if reqObject[
                            'refId'] == self.plugin_lastAceId and self.current_running_plugin != None:
                        if self.current_running_plugin.waitForResponse != None:
                            # just forward the object to the
                            # don't change it's refId, further requests must reference last FinishSpeech
                            self.logger.info("Forwarding object to plugin")
                            self.plugin_lastAceId = None
                            self.current_running_plugin.response = reqObject
                            self.current_running_plugin.waitForResponse.set()

                if ObjectIsCommand(reqObject,
                                   StartSpeechRequest) or ObjectIsCommand(
                                       reqObject, StartSpeechDictation):
                    self.logger.info("New start of speech received")
                    startSpeech = None
                    if ObjectIsCommand(reqObject, StartSpeechDictation):
                        dictation = True
                        startSpeech = StartSpeechDictation(reqObject)
                    else:
                        dictation = False
                        startSpeech = StartSpeechRequest(reqObject)

                    decoder = speex.Decoder()
                    encoder = flac.Encoder()
                    speexUsed = False
                    if startSpeech.codec == StartSpeech.CodecSpeex_WB_Quality8Value:
                        decoder.initialize(mode=speex.SPEEX_MODEID_WB)
                        encoder.initialize(16000, 1, 16)
                        speexUsed = True
                    elif startSpeech.codec == StartSpeech.CodecSpeex_NB_Quality7Value:
                        decoder.initialize(mode=speex.SPEEX_MODEID_NB)
                        encoder.initialize(16000, 1, 16)
                        speexUsed = True
                    elif startSpeech.codec == StartSpeech.CodecPCM_Mono_16Bit_8000HzValue:
                        encoder.initialize(8000, 1, 16)
                    elif startSpeech.codec == StartSpeech.CodecPCM_Mono_16Bit_11025HzValue:
                        encoder.initialize(11025, 1, 16)
                    elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_16000HzValue:
                        encoder.initialize(16000, 1, 16)
                    elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_22050HzValue:
                        encoder.initialize(22050, 1, 16)
                    elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_32000HzValue:
                        encoder.initialize(32000, 1, 16)
                    # we probably need resampling for sample rates other than 16kHz...

                    self.speech[startSpeech.aceId] = (decoder if speexUsed else
                                                      None, encoder, dictation)

                elif ObjectIsCommand(reqObject, SpeechPacket):
                    self.logger.info("Decoding speech packet")
                    speechPacket = SpeechPacket(reqObject)
                    (decoder, encoder,
                     dictation) = self.speech[speechPacket.refId]
                    if decoder:
                        pcm = decoder.decode(speechPacket.packets)
                    else:
                        pcm = SpeechPacket.data  # <- probably data... if pcm
                    encoder.encode(pcm)

                elif reqObject['class'] == 'StartCorrectedSpeechRequest':
                    self.process_recognized_speech(
                        {
                            u'hypotheses': [{
                                'confidence':
                                1.0,
                                'utterance':
                                str.lower(reqObject['properties']['utterance'])
                            }]
                        }, reqObject['aceId'], False)

                elif ObjectIsCommand(reqObject, FinishSpeech):
                    self.logger.info("End of speech received")
                    finishSpeech = FinishSpeech(reqObject)
                    (decoder, encoder,
                     dictation) = self.speech[finishSpeech.refId]
                    if decoder:
                        decoder.destroy()
                    encoder.finish()
                    flacBin = encoder.getBinary()
                    encoder.destroy()
                    del self.speech[finishSpeech.refId]

                    self.logger.info("Sending flac to google for recognition")
                    self.httpClient.make_google_request(
                        flacBin,
                        finishSpeech.refId,
                        dictation,
                        language=self.assistant.language,
                        allowCurses=True)

                elif ObjectIsCommand(reqObject, CancelRequest):
                    # this is probably called when we need to kill a plugin
                    # wait for thread to finish a send
                    cancelRequest = CancelRequest(reqObject)
                    if cancelRequest.refId in self.speech:
                        del self.speech[cancelRequest.refId]

                    self.send_object(CancelSucceeded(cancelRequest.aceId))

                elif ObjectIsCommand(reqObject, GetSessionCertificate):
                    getSessionCertificate = GetSessionCertificate(reqObject)
                    response = GetSessionCertificateResponse(
                        getSessionCertificate.aceId)
                    response.caCert = caCert.as_der()
                    response.sessionCert = serverCert.as_der()
                    self.send_object(response)

                elif ObjectIsCommand(reqObject, CreateSessionInfoRequest):
                    # how does a positive answer look like?
                    createSessionInfoRequest = CreateSessionInfoRequest(
                        reqObject)
                    fail = CommandFailed(createSessionInfoRequest.aceId)
                    fail.reason = "Not authenticated"
                    fail.errorCode = 0
                    self.send_object(fail)

                    #self.send_plist({"class":"SessionValidationFailed", "properties":{"errorCode":"UnsupportedHardwareVersion"}, "aceId": str(uuid.uuid4()), "refId":reqObject['aceId'], "group":"com.apple.ace.system"})

                elif reqObject['class'] == 'CreateAssistant':
                    #create a new assistant
                    helper = Assistant()
                    c = self.dbConnection.cursor()
                    noError = True
                    try:
                        c.execute(
                            "insert into assistants(assistantId, assistant) values (?,?)",
                            (helper.assistantId, helper))
                        self.dbConnection.commit()
                    except sqlite3.Error, e:
                        noError = False
                    c.close()
                    if noError:
                        self.assistant = helper
                        self.send_plist({
                            "class": "AssistantCreated",
                            "properties": {
                                "speechId": str(uuid.uuid4()),
                                "assistantId": helper.assistantId
                            },
                            "group": "com.apple.ace.system",
                            "callbacks": [],
                            "aceId": str(uuid.uuid4()),
                            "refId": reqObject['aceId']
                        })
                    else:
                        self.send_plist({
                            "class": "CommandFailed",
                            "properties": {
                                "reason": "Database error",
                                "errorCode": 2,
                                "callbacks": []
                            },
                            "aceId": str(uuid.uuid4()),
                            "refId": reqObject['aceId'],
                            "group": "com.apple.ace.system"
                        })

                elif reqObject['class'] == 'SetAssistantData':
                    # fill assistant
                    if self.assistant != None:
                        c = self.dbConnection.cursor()
                        objProperties = reqObject['properties']
                        self.assistant.censorSpeech = objProperties[
                            'censorSpeech']
                        self.assistant.timeZoneId = objProperties['timeZoneId']
                        #self.assistant.language = objProperties['language']
                        if self.lang != None:
                            self.assistant.language = self.lang
                        else:
                            self.assistant.language = objProperties['language']
                        self.assistant.region = objProperties['region']
                        c.execute(
                            "update assistants set assistant = ? where assistantId = ?",
                            (self.assistant, self.assistant.assistantId))
                        self.dbConnection.commit()
                        c.close()

                elif reqObject['class'] == 'LoadAssistant':
                    c = self.dbConnection.cursor()
                    c.execute(
                        "select assistant from assistants where assistantId = ?",
                        (reqObject['properties']['assistantId'], ))
                    self.dbConnection.commit()
                    result = c.fetchone()
                    if result == None:
                        self.send_plist({
                            "class": "AssistantNotFound",
                            "aceId": str(uuid.uuid4()),
                            "refId": reqObject['aceId'],
                            "group": "com.apple.ace.system"
                        })
                    else:
                        self.assistant = result[0]
                        self.send_plist({
                            "class": "AssistantLoaded",
                            "properties": {
                                "version":
                                "20111216-32234-branches/telluride?cnxn=293552c2-8e11-4920-9131-5f5651ce244e",
                                "requestSync": False,
                                "dataAnchor": "removed"
                            },
                            "aceId": str(uuid.uuid4()),
                            "refId": reqObject['aceId'],
                            "group": "com.apple.ace.system"
                        })
                    c.close()

                elif reqObject['class'] == 'DestroyAssistant':
                    c = self.dbConnection.cursor()
                    c.execute("delete from assistants where assistantId = ?",
                              (reqObject['properties']['assistantId'], ))
                    self.dbConnection.commit()
                    c.close()
                    self.send_plist({
                        "class": "AssistantDestroyed",
                        "properties": {
                            "assistantId":
                            reqObject['properties']['assistantId']
                        },
                        "aceId": str(uuid.uuid4()),
                        "refId": reqObject['aceId'],
                        "group": "com.apple.ace.system"
                    })
                elif reqObject['class'] == 'StartRequest':
                    #this should also be handeled by special plugins, so lets call the plugin handling stuff
                    self.process_recognized_speech(
                        {
                            'hypotheses': [{
                                'utterance':
                                reqObject['properties']['utterance'],
                                'confidence':
                                1.0
                            }]
                        }, reqObject['aceId'], False)
class SiriProtocolHandler(Siri):
    __not_recognized = {
        "de-DE": u"Entschuldigung, ich verstehe \"{0}\" nicht.",
        "en-US": u"Sorry I don't understand {0}",
        "fr-FR": u"Désolé je ne comprends pas ce que \"{0}\" veut dire.",
        "nl-NL": u"Excuses, \"{0}\" versta ik niet."
    }
    __websearch = {
        "de-DE": u"Websuche",
        "en-US": u"Websearch",
        "fr-FR": u"Rechercher sur le Web",
        "nl-NL": u"Zoeken op het web"
    }
    __scheduling_interval_timeout__ = 20
    __timeout_delay = 10

    def __init__(self, server, peer):
        Siri.__init__(self, server, peer)
        self.lastPing = 0
        self.pong = 0
        self.plugin_lastAceId = ""
        self.current_running_plugin = None
        self.dbConnection = server.dbConnection
        self.assistant = None
        self.speech = dict()
        self.httpClient = AsyncOpenHttp(self.handle_google_data)
        self.current_google_request = None
        self.current_location = None
        self.lastPingTime = time.time()
        self.syncAnchors = dict()
        self.timeoutschedule = twisted.internet.reactor.callLater(
            SiriProtocolHandler.__scheduling_interval_timeout__,
            self.checkTimeout)

    def seconds_since_last_ping(self):
        return time.time() - self.lastPingTime

    def connectionLost(self, reason):
        try:
            self.timeoutschedule.cancel()
        except:
            pass
        if self.current_google_request != None:
            self.current_google_request.cancel()
        #ensure all decoder/encoder attemps are closed
        for key in self.speech.keys():
            (decoder, encoder, _) = self.speech[key]
            if decoder:
                decoder.destroy()
            if encoder:
                encoder.finish()
                encoder.destroy()
        del self.speech
        self.current_running_plugin = None
        self.dbConnection = None
        self.httpClient = None
        Siri.connectionLost(self, reason)

    def checkTimeout(self):
        if self.seconds_since_last_ping(
        ) > SiriProtocolHandler.__timeout_delay:
            self.logger.info("Connection timed out")
            self.transport.loseConnection()
        else:
            self.timeoutschedule = twisted.internet.reactor.callLater(
                SiriProtocolHandler.__scheduling_interval_timeout__,
                self.checkTimeout)

    def handle_google_data(self, body, requestId, dictation):
        self.current_google_request = None
        if (body != None):
            googleAnswer = json.loads(body)
            for i in xrange(0, len(googleAnswer['hypotheses']) - 1):
                utterance = googleAnswer['hypotheses'][i]['utterance']
                if len(utterance) == 1:
                    utterance = utterance.upper()
                else:
                    utterance = utterance[0].upper() + utterance[1:]
                googleAnswer['hypotheses'][i]['utterance'] = utterance
            self.process_recognized_speech(googleAnswer, requestId, dictation)
        else:
            self.send_object(
                SpeechFailure(requestId, "No connection to Google possible"))
            self.send_object(RequestCompleted(requestId))

    def received_ping(self, numOfPing):
        self.pong += 1
        self.lastPing = numOfPing
        self.lastPingTime = time.time()
        self.send_pong(self.pong)

    def process_recognized_speech(self, googleJson, requestId, dictation):
        possible_matches = googleJson['hypotheses']
        if len(possible_matches) > 0:
            best_match = possible_matches[0]['utterance']
            best_match_confidence = possible_matches[0]['confidence']
            self.logger.info(
                u"Best matching result: \"{0}\" with a confidence of {1}%".
                format(best_match,
                       round(float(best_match_confidence) * 100, 2)))
            # construct a SpeechRecognized
            token = Token(best_match, 0, 0, 1000.0, True, True)
            interpretation = Interpretation([token])
            phrase = Phrase(lowConfidence=False,
                            interpretations=[interpretation])
            recognition = Recognition([phrase])
            recognized = SpeechRecognized(requestId, recognition)

            if not dictation:
                if self.current_running_plugin == None:
                    plugin = PluginManager.getPluginForImmediateExecution(
                        self.assistant.assistantId, best_match,
                        self.assistant.language,
                        (self.send_object, self.send_plist, self.assistant,
                         self.current_location))
                    if plugin != None:
                        plugin.refId = requestId
                        plugin.connection = self
                        self.current_running_plugin = plugin
                        self.send_object(recognized)
                        self.current_running_plugin.start()
                    else:
                        self.send_object(recognized)
                        view = UIAddViews(requestId)
                        errorText = SiriProtocolHandler.__not_recognized[
                            self.assistant.
                            language] if self.assistant.language in SiriProtocolHandler.__not_recognized else SiriProtocolHandler.__not_recognized[
                                "en-US"]
                        errorView = UIAssistantUtteranceView()
                        errorView.text = errorText.format(best_match)
                        errorView.speakableText = errorText.format(best_match)
                        view.views = [errorView]
                        websearchText = SiriProtocolHandler.__websearch[
                            self.assistant.
                            language] if self.assistant.language in SiriProtocolHandler.__websearch else SiriProtocolHandler.__websearch[
                                "en-US"]
                        button = UIButton()
                        button.text = websearchText
                        cmd = SendCommands()
                        cmd.commands = [
                            StartRequest(
                                utterance=
                                u"^webSearchQuery^=^{0}^^webSearchConfirmation^=^Yes^"
                                .format(best_match))
                        ]
                        button.commands = [cmd]
                        view.views.append(button)
                        self.send_object(view)
                        self.send_object(RequestCompleted(requestId))
                elif self.current_running_plugin.waitForResponse != None:
                    # do we need to send a speech recognized here? i.d.k
                    self.current_running_plugin.response = best_match
                    self.current_running_plugin.refId = requestId
                    self.current_running_plugin.waitForResponse.set()
                else:
                    self.send_object(recognized)
                    self.send_object(RequestCompleted(requestId))
            else:
                self.send_object(recognized)
                self.send_object(RequestCompleted(requestId))

    def received_plist(self, plist):
        self.logger.debug("Got packet with class: {0}".format(plist['class']))
        self.logger.debug("packet with content:\n{0}".format(
            pprint.pformat(plist, width=40)))

        # first handle speech stuff

        if 'refId' in plist:
            # if the following holds, this packet is an answer to a request by a plugin
            if plist[
                    'refId'] == self.plugin_lastAceId and self.current_running_plugin != None:
                if self.current_running_plugin.waitForResponse != None:
                    # just forward the object to the
                    # don't change it's refId, further requests must reference last FinishSpeech
                    self.logger.debug("Forwarding object to plugin")
                    self.plugin_lastAceId = None
                    self.current_running_plugin.response = plist if plist[
                        'class'] != "StartRequest" else plist['properties'][
                            'utterance']
                    self.current_running_plugin.waitForResponse.set()
                    return

        if ObjectIsCommand(plist, StartSpeechRequest) or ObjectIsCommand(
                plist, StartSpeechDictation):
            self.logger.debug("New start of speech received")
            startSpeech = None
            if ObjectIsCommand(plist, StartSpeechDictation):
                dictation = True
                startSpeech = StartSpeechDictation(plist)
            else:
                dictation = False
                startSpeech = StartSpeechRequest(plist)

            decoder = speex.Decoder()
            encoder = flac.Encoder()
            speexUsed = False
            if startSpeech.codec == StartSpeech.CodecSpeex_WB_Quality8Value:
                decoder.initialize(mode=speex.SPEEX_MODEID_WB)
                encoder.initialize(16000, 1, 16)
                speexUsed = True
            elif startSpeech.codec == StartSpeech.CodecSpeex_NB_Quality7Value:
                decoder.initialize(mode=speex.SPEEX_MODEID_NB)
                encoder.initialize(16000, 1, 16)
                speexUsed = True
            elif startSpeech.codec == StartSpeech.CodecPCM_Mono_16Bit_8000HzValue:
                encoder.initialize(8000, 1, 16)
            elif startSpeech.codec == StartSpeech.CodecPCM_Mono_16Bit_11025HzValue:
                encoder.initialize(11025, 1, 16)
            elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_16000HzValue:
                encoder.initialize(16000, 1, 16)
            elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_22050HzValue:
                encoder.initialize(22050, 1, 16)
            elif startSpeech.coded == StartSpeech.CodecPCM_Mono_16Bit_32000HzValue:
                encoder.initialize(32000, 1, 16)
            # we probably need resampling for sample rates other than 16kHz...

            self.speech[startSpeech.aceId] = (decoder if speexUsed else None,
                                              encoder, dictation)

        elif ObjectIsCommand(plist, SpeechPacket):
            self.logger.debug("Decoding speech packet")
            speechPacket = SpeechPacket(plist)
            if speechPacket.refId in self.speech:
                (decoder, encoder, dictation) = self.speech[speechPacket.refId]
                if decoder:
                    pcm = decoder.decode(speechPacket.packets)
                else:
                    pcm = SpeechPacket.data  # <- probably data... if pcm
                encoder.encode(pcm)
            else:
                self.logger.debug(
                    "Got a speech packet that did not match any current request"
                )

        elif plist['class'] == 'StartCorrectedSpeechRequest':
            self.process_recognized_speech(
                {
                    u'hypotheses':
                    [{
                        'confidence': 1.0,
                        'utterance': plist['properties']['utterance']
                    }]
                }, plist['aceId'], False)

        elif ObjectIsCommand(plist, FinishSpeech):
            self.logger.debug("End of speech received")
            finishSpeech = FinishSpeech(plist)
            if finishSpeech.refId in self.speech:
                (decoder, encoder, dictation) = self.speech[finishSpeech.refId]
                if decoder:
                    decoder.destroy()
                flacBin = None
                if encoder:
                    encoder.finish()
                    flacBin = encoder.getBinary()
                    encoder.destroy()
                del self.speech[finishSpeech.refId]
                if flacBin != None:
                    self.logger.info("Sending flac to google for recognition")
                    try:
                        self.current_google_request = self.httpClient.make_google_request(
                            flacBin,
                            finishSpeech.refId,
                            dictation,
                            language=self.assistant.language,
                            allowCurses=True)
                    except (AttributeError, TypeError):
                        self.logger.warning(
                            "Unable to find language record for this assistant. Try turning Siri off and then back on."
                        )
                else:
                    self.logger.info("There was no speech")
            else:
                self.logger.debug(
                    "Got a finish speech packet that did not match any current request"
                )

        elif ObjectIsCommand(plist, CancelRequest):
            # this is probably called when we need to kill a plugin
            # wait for thread to finish a send
            self.logger.debug("Should cancel current request")
            cancelRequest = CancelRequest(plist)
            if cancelRequest.refId in self.speech:
                (decoder, encoder,
                 dictation) = self.speech[cancelRequest.refId]
                if decoder:
                    decoder.destroy()
                if encoder:
                    encoder.finish()
                    encoder.destroy()
                del self.speech[cancelRequest.refId]
            if self.current_google_request != None:
                self.current_google_request.cancel()
                # if a google request is running (follow up listening..., plugin might get killed there by user)
                if self.current_running_plugin != None:
                    if self.current_running_plugin.waitForResponse != None:
                        self.current_running_plugin._abortPluginRun()
                        self.current_running_plugin.waitForResponse.set()

            # if a plugin is running (processing, but not waiting for data from the device we kill it)
            if self.current_running_plugin != None:
                if self.current_running_plugin.waitForResponse == None:
                    self.current_running_plugin._abortPluginRun()

            self.send_object(CancelSucceeded(cancelRequest.aceId))

        elif ObjectIsCommand(plist, RollbackRequest):
            pass

        elif ObjectIsCommand(plist, SyncChunk):
            chunk = SyncChunk(plist)
            previous = self.syncAnchors[
                chunk.key] if chunk.key in self.syncAnchors else None
            if previous != None:
                if previous.generation != chunk.preGen:
                    chunkDenied = SyncChunkDenied(chunk.aceId)
                    self.send_object(chunkDenied)
                    return
            current = SyncAnchor()
            current.generation = chunk.postGen
            current.value = chunk.postGen
            current.validity = chunk.validity
            current.key = chunk.key
            self.syncAnchors[current.key] = current
            chunkAccepted = SyncChunkAccepted(chunk.aceId)
            chunkAccepted.current = current
            self.send_object(chunkAccepted)
            pass

        elif ObjectIsCommand(plist, GetSessionCertificate):
            getSessionCertificate = GetSessionCertificate(plist)
            sessionCA_DER = crypto.dump_certificate(crypto.FILETYPE_ASN1,
                                                    self.server.sessionCACert)
            sessionCert_DER = crypto.dump_certificate(crypto.FILETYPE_ASN1,
                                                      self.server.sessionCert)
            response = GetSessionCertificateResponse(
                getSessionCertificate.aceId, sessionCA_DER, sessionCert_DER)
            self.send_object(response)

        elif ObjectIsCommand(plist, CreateSessionInfoRequest):
            # how does a positive answer look like?
            createSessionInfoRequest = CreateSessionInfoRequest(plist)

            #success = CreateSessionInfoResponse(createSessionInfoRequest.aceId)
            #success.sessionInfo = biplist.Data("\x01\x02BLABLABLBALBALBALBALBALBALBALBA")
            #success.validityDuration = 9600

            #self.send_object(success)
            fail = CommandFailed(createSessionInfoRequest.aceId)
            fail.reason = "Not authenticated"
            fail.errorCode = 0
            self.send_object(fail)

            ##self.send_plist({"class":"SessionValidationFailed", "properties":{"errorCode":"UnsupportedHardwareVersion"}, "aceId": str(uuid.uuid4()), "refId":plist['aceId'], "group":"com.apple.ace.system"})

        elif ObjectIsCommand(plist, CreateAssistant):
            createAssistant = CreateAssistant(plist)
            #create a new assistant
            helper = Assistant()
            helper.assistantId = str.upper(str(uuid.uuid4()))
            helper.language = createAssistant.language
            helper.activationToken = createAssistant.activationToken
            helper.connectionType = createAssistant.connectionType
            helper.validationData = createAssistant.validationData
            c = self.dbConnection.cursor()
            noError = True
            try:
                c.execute(
                    "insert into assistants(assistantId, assistant) values (?,?)",
                    (helper.assistantId, helper))
                self.dbConnection.commit()
            except sqlite3.Error:
                noError = False
            c.close()
            if noError:
                self.assistant = helper
                assiCreatedCMD = AssistantCreated(createAssistant.aceId)
                assiCreatedCMD.assistantId = helper.assistantId
                assiCreatedCMD.speechId = str(uuid.uuid4())
                self.send_object(assiCreatedCMD)
            else:
                cmdFailed = CommandFailed(createAssistant.aceId)
                cmdFailed.reason = "Database Error"
                cmdFailed.errorCode = 2
                self.send_object(cmdFailed)

        elif ObjectIsCommand(plist, SetAssistantData):
            setAssistantData = SetAssistantData(plist)
            # fill assistant
            if self.assistant != None:
                try:
                    c = self.dbConnection.cursor()
                    assi_id = self.assistant.assistantId
                    self.assistant.initializeFromPlist(
                        setAssistantData.to_plist())
                    self.assistant.assistantId = assi_id
                    #Record the user firstName and nickName
                    try:
                        self.assistant.firstName = self.assistant.meCards[
                            0].firstName.encode("utf-8")
                    except:
                        self.assistant.firstName = u''
                    try:
                        self.assistant.nickName = self.assistant.meCards[
                            0].nickName.encode("utf-8")
                    except:
                        self.assistant.nickName = u''
                    #Done recording
                    c.execute(
                        "update assistants set assistant = ? where assistantId = ?",
                        (self.assistant, self.assistant.assistantId))
                    self.dbConnection.commit()
                    c.close()
                except:
                    cmdFailed = CommandFailed(setAssistantData.aceId)
                    cmdFailed.reason = "Database Error"
                    cmdFailed.errorCode = 2
                    self.send_object(cmdFailed)
                    self.logger.exception(
                        "Database Error on setting assistant data")
            else:
                cmdFailed = CommandFailed(setAssistantData.aceId)
                cmdFailed.reason = "Assistant to set data not found"
                cmdFailed.errorCode = 2
                self.send_object(cmdFailed)
                self.logger.warning(
                    "Trying to set assistant data without having a valid assistant"
                )

        elif ObjectIsCommand(plist, LoadAssistant):
            loadAssistant = LoadAssistant(plist)
            try:
                c = self.dbConnection.cursor()
                c.execute(
                    "select assistant from assistants where assistantId = ?",
                    (loadAssistant.assistantId, ))
                self.dbConnection.commit()
                result = c.fetchone()
                if result == None:
                    self.send_object(AssistantNotFound(loadAssistant.aceId))
                    self.logger.warning("Assistant not found in database!!")
                else:
                    self.assistant = result[0]
                    #update assistant from LoadAssistant
                    self.assistant.language = loadAssistant.language
                    self.assistant.connectionType = loadAssistant.connectionType

                    if self.assistant.language == '' or self.assistant.language == None:
                        self.logger.error(
                            "No language is set for this assistant")
                        c.execute(
                            "delete from assistants where assistantId = ?",
                            (plist['properties']['assistantId'], ))
                        self.dbConnection.commit()
                        cmdFailed = CommandFailed(loadAssistant.aceId)
                        cmdFailed.reason = "Database error Assistant not found or language settings"
                        cmdFailed.errorCode = 2
                        self.send_object(cmdFailed)
                    else:
                        loaded = AssistantLoaded(loadAssistant.aceId)
                        loaded.version = "20111216-32234-branches/telluride?cnxn=293552c2-8e11-4920-9131-5f5651ce244e"
                        loaded.requestSync = 0
                        try:
                            loaded.dataAnchor = self.assistant.anchor
                        except:
                            loaded.dataAnchor = "removed"
                        self.send_object(loaded)
                c.close()
            except:
                self.send_object(AssistantNotFound(loadAssistant.aceId))
                self.logger.warning("Database error on fetching assistant")

        elif ObjectIsCommand(plist, DestroyAssistant):
            destroyAssistant = DestroyAssistant(plist)
            try:
                c = self.dbConnection.cursor()
                c.execute("delete from assistants where assistantId = ?",
                          (plist['properties']['assistantId'], ))
                self.dbConnection.commit()
                c.close()
                destroyed = AssistantDestroyed(destroyAssistant.aceId)
                destroyed.assistantId = destroyAssistant.assistantId
                self.send_object(destroyed)
            except:
                self.send_object(AssistantNotFound(destroyAssistant.aceId))
                self.logger.error("Database error on deleting assistant")

        elif ObjectIsCommand(plist, StartRequest):
            startRequest = StartRequest(plist)
            #this should also be handeled by special plugins, so lets call the plugin handling stuff
            self.process_recognized_speech(
                {
                    'hypotheses': [{
                        'utterance': startRequest.utterance,
                        'confidence': 1.0
                    }]
                }, startRequest.aceId, False)
        pass
Example #14
0
class HandleConnection(ssl_dispatcher):
	def __init__(self, conn):
		asyncore.dispatcher_with_send.__init__(self, conn)

		self.ssled = False
		self.secure_connection(certfile="server.passless.crt", keyfile="server.passless.key", server_side=True)			   

		self.consumed_ace = False
		self.data = ""
		self.binary_mode = False
		self.decompressor = zlib.decompressobj()
		self.compressor = zlib.compressobj()
		self.unzipped_input = ""
		self.unzipped_output_buffer = ""
		self.output_buffer = ""
		self.speech = dict()
		self.pong = 1
		self.ping = 0
		self.httpClient = AsyncOpenHttp(self.handle_google_data, self.handle_google_failure)
		self.gotGoogleAnswer = False
		self.googleData = None
		self.lastRequestId = None
		self.dictation = None

	def handle_ssl_established(self):				
		self.ssled = True

	def handle_ssl_shutdown(self):
		self.ssled = False

	def readable(self):
		if self.ssled:
			while self.socket.pending() > 0:
				self.handle_read_event()
		return True

	def handle_read(self):
		self.data += self.recv(8192)
		if not self.binary_mode:
			if "\r\n\r\n" in self.data:
				endOfHeader = self.data.find("\r\n\r\n")+4
				self.header = self.data[:endOfHeader]
				self.data = self.data[endOfHeader:]
				print "Received new header from iDevice"
				print self.header
				print "Header end"
				self.binary_mode = True
				self.header_complete = True
		else:
			if not self.consumed_ace:
				print "Received removing ace instruction: ", repr(self.data[:4])
				self.data = self.data[4:]
				self.consumed_ace = True
				self.output_buffer = "HTTP/1.1 200 OK\r\nServer: Apache-Coyote/1.1\r\nDate: " +  formatdate(timeval=None, localtime=False, usegmt=True) + "\r\nConnection: close\r\n\r\n\xaa\xcc\xee\x02"
				#self.flush_output_buffer()
			
			# first process outstanding google answers THIS happens at least on each PING
			if self.gotGoogleAnswer:
				self.process_recognized_speech(self.googleData, self.lastRequestId, self.dictation)
				self.lastRequestId = None
				self.dictation = None
				self.googleData = None
				self.gotGoogleAnswer = False
			
			self.process_compressed_data()

	def handle_google_data(self, body, requestId, dictation):
		self.googleData = json.loads(body)
		self.lastRequestId = requestId
		self.dictation = dictation
		self.gotGoogleAnswer = True

	def handle_google_failure(self, requestId, dictation):
		self.googleData = None
		self.lastRequestId = requestId
		self.dictation = dictation
		self.gotGoogleAnswer = True

	def send_object(self, obj):
		self.send_plist(obj.to_plist())

	def send_plist(self, plist):
		print "Sending: ", plist
		bplist = biplist.writePlistToString(plist);
		self.unzipped_output_buffer = struct.pack('>BI', 2,len(bplist)) + bplist
		self.flush_unzipped_output() 

	def send_pong(self, id):
		self.unzipped_output_buffer = struct.pack('>BI', 4, id)
		self.flush_unzipped_output() 

	def process_recognized_speech(self, googleJson, requestId, dictation):
		if googleJson == None:
			# there was a network failure
			self.send_object(speechObjects.SpeechFailure(requestId, "No connection to Google possible"))
			self.send_object(baseObjects.RequestCompleted(requestID))
		else:
			possible_matches = googleJson['hypotheses']
			if len(possible_matches) > 0:
				answer = possible_matches[0]['utterance']
				best_match_confidence = possible_matches[0]['confidence']
				print u"Best matching result: \"{0}\" with a confidence of {1}%".format(answer, round(float(best_match_confidence)*100,2))

				# construct a SpeechRecognized
				token = speechObjects.Token(answer, 0, 0, 1000.0, True, True)
				interpretation = speechObjects.Interpretation([token])
				phrase = speechObjects.Phrase(lowConfidence=False, interpretations=[interpretation])
				recognition = speechObjects.Recognition([phrase])
				recognized = speechObjects.SpeechRecognized(requestId, recognition)
				
				# Send speechRecognized to iDevice
				self.send_object(recognized)

				view = uiObjects.AddViews(requestId)
				# Example
				if 'how are you' in answer:
					view.views += [uiObjects.AssistantUtteranceView(text='Thank you. I\'m fine.')]
				# elif not dictation:
					# view.views += [uiObjects.AssistantUtteranceView(text=answer)]
				else:
					view.views += [uiObjects.AssistantUtteranceView(text='I don\'t know what that means, but at least it rhymes.')]

				self.send_object(view)
				
				# at the end we need to finish the request
				self.send_object(baseObjects.RequestCompleted(requestId))

			

	def process_compressed_data(self):
		self.unzipped_input += self.decompressor.decompress(self.data)
		self.data = ""
		while self.hasNextObj():
			object = self.read_next_object_from_unzipped()
			if object != None:
				print "Packet with class: ", object['class']
				print "packet with content: ", object
				
				
				if object['class'] == 'GetSessionCertificate':
					caDer = caCert.as_der()
					serverDer = serverCert.as_der()
					self.send_plist({"class": "GetSessionCertificateResponse", "group": "com.apple.ace.system", "aceId": str(uuid.uuid4()), "refId": object['aceId'], "properties":{"certificate": biplist.Data("\x01\x02"+struct.pack(">I", len(caDer))+caDer + struct.pack(">I", len(serverDer))+serverDer)}})

					#self.send_plist({"class":"CommandFailed", "properties": {"reason":"Not authenticated", "errorCode":0, "callbacks":[]}, "aceId": str(uuid.uuid4()), "refId": object['aceId'], "group":"com.apple.ace.system"})
				if object['class'] == 'CreateSessionInfoRequest':
			# how does a positive answer look like?
					print "returning response"
					self.send_plist({"class":"CommandFailed", "properties": {"reason":"Not authenticated", "errorCode":0, "callbacks":[]}, "aceId": str(uuid.uuid4()), "refId": object['aceId'], "group":"com.apple.ace.system"})
					#self.send_plist({"class":"SessionValidationFailed", "properties":{"errorCode":"UnsupportedHardwareVersion"}, "aceId": str(uuid.uuid4()), "refId":object['aceId'], "group":"com.apple.ace.system"})
					
				if object['class'] == 'CreateAssistant':
					self.send_plist({"class": "AssistantCreated", "properties": {"speechId": str(uuid.uuid4()), "assistantId": str(uuid.uuid4())}, "group":"com.apple.ace.system", "callbacks":[], "aceId": str(uuid.uuid4()), "refId": object['aceId']})
			
				if object['class'] == 'SetAssistantData':
					# grab assistant data, how is a device identified?
					pass
				
		#probably Create Set and Load assistant work together, first we create one response with success, fill it with set..data and later can load it again using load... however.. what are valid responses to all three requests?
				if object['class'] == 'LoadAssistant':
				# reply with a AssistentLoaded
				#  self.send_plist({"class": "AssistantNotFound", "aceId":str(uuid.uuid4()), "refId":object['aceId'], "group":"com.apple.ace.system"})
					self.send_plist({"class": "AssistantLoaded", "properties": {"version": "20111216-32234-branches/telluride?cnxn=293552c2-8e11-4920-9131-5f5651ce244e", "requestSync":False, "dataAnchor":"removed"}, "aceId":str(uuid.uuid4()), "refId":object['aceId'], "group":"com.apple.ace.system"})
					pass
				if object['class'] == 'DestroyAssistant':
					self.send_plist({"class": "AssistantDestroyed", "properties": {"assistantId": object['properties']['assistantId']}, "aceId":str(uuid.uuid4()), "refId":object['aceId'], "group":"com.apple.ace.system"})

				if object['class'] == 'StartSpeechRequest' or object['class'] == 'StartSpeechDictation':
					decoder = speex.Decoder()
					decoder.initialize(mode=speex.SPEEX_MODEID_WB)
					encoder = flac.Encoder()
					encoder.initialize(16000, 1, 16) #16kHz sample rate, 1 channel, 16 bits per sample
					dictation=(object['class'] == 'StartSpeechDictation')
					self.speech[object['aceId']] = (decoder, encoder, dictation)
					
				if object['class'] == 'SpeechPacket':
					(decoder, encoder, dictation) = self.speech[object['refId']]
					pcm = decoder.decode(object['properties']['packets'])
					encoder.encode(pcm)
				
				if object['class'] == 'CancelRequest':
					# we should test if this stil exists..
					del self.speech[object['refId']]

				if object['class'] == 'StartCorrectedSpeechRequest':
					self.process_recognized_speech({u'hypotheses': [{u'confidence': 1.0, u'utterance': str.lower(object['properties']['utterance'])}]}, object['aceId'], False)
				elif object['class'] == 'FinishSpeech':
					(decoder, encoder, dictation) = self.speech[object['refId']]
					decoder.destroy()
					encoder.finish()
					flacBin = encoder.getBinary()
					encoder.destroy()
					del self.speech[object['refId']]
					
					self.httpClient.make_google_request(flacBin, object['refId'], dictation, language='de-DE', allowCurses=True)
					
	def hasNextObj(self):
		if len(self.unzipped_input) == 0:
			return False
		cmd, inter1, inter2, data = struct.unpack('>BBBH', self.unzipped_input[:5])
		if cmd in (3,4): #ping pong
			return True
		if cmd == 2:
			#print "expect: ", data+5,  " received: ", len(self.unzipped_input)
			return ((data + 5) < len(self.unzipped_input))
	
	def read_next_object_from_unzipped(self):
		cmd, inter1, inter2, data = struct.unpack('>BBBH', self.unzipped_input[:5])
		print cmd, inter1, inter2, data
		
		if cmd == 3: #ping
			self.ping = data
			self.send_pong(self.pong)
			self.pong += 1
			print "Returning a Pong"
			self.unzipped_input = self.unzipped_input[5:]
			return None

		object_size = data
		prefix = self.unzipped_input[:5]
		object_data = self.unzipped_input[5:object_size+5]
		self.unzipped_input = self.unzipped_input[object_size+5:]
		return self.parse_object(object_data)
	
	def parse_object(self, object_data):
		#this is a binary plist file
		plist = biplist.readPlistFromString(object_data)
		return plist

	def flush_unzipped_output(self):
			
		self.output_buffer += self.compressor.compress(self.unzipped_output_buffer)
		#make sure everything is compressed
		self.output_buffer += self.compressor.flush(zlib.Z_SYNC_FLUSH)
		self.unzipped_output_buffer = ""

		self.flush_output_buffer()

	def flush_output_buffer(self):
		if len(self.output_buffer) > 0:
			self.send(self.output_buffer)
			self.output_buffer = ""