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siriServer.py
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siriServer.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
import socket, ssl, sys, zlib, binascii, time, select, struct, biplist
from email.utils import formatdate
import uuid
import speex
import flac
import json
import asyncore
import re
import threading
import thread
import db
from db import Assistant
import PluginManager
from M2Crypto import BIO, RSA, X509
from siriObjects import speechObjects, baseObjects, uiObjects
from httpClient import AsyncOpenHttp
from sslDispatcher import ssl_dispatcher
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.current_running_plugin_thread = 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):
self.sendLock.acquire()
print "Sending: ", plist
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']
print 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()
plugin.refId = requestId
plugin.connection = self
self.current_running_plugin = plugin
self.send_object(recognized)
self.current_running_plugin_thread = thread.start_new_thread(method, (plugin, best_match, self.assistant.language))
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:
print "Packet with class: ", reqObject['class']
print "packet with content: ", reqObject
# 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?
print "returning response"
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"})
def hasNextObj(self):
if len(self.unzipped_input) == 0:
return False
cmd, data = struct.unpack('>BI', 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, data = struct.unpack('>BI', self.unzipped_input[:5])
print cmd, 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 = ""
class SiriServer(asyncore.dispatcher):
def __init__(self, host, port):
asyncore.dispatcher.__init__(self)
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.set_reuse_addr()
self.bind((host, port))
self.listen(5)
def handle_accept(self):
pair = self.accept()
if pair is None:
pass
else:
sock, addr = pair
print 'Incoming connection from %s' % repr(addr)
handler = HandleConnection(sock)
# load the certificates
caCertFile = open('OrigAppleSubCACert.der')
caCert = X509.load_cert_bio(BIO.MemoryBuffer(caCertFile.read()), format=0)
caCertFile.close()
certFile = open('OrigAppleServerCert.der')
serverCert = X509.load_cert_bio(BIO.MemoryBuffer(certFile.read()), format=0)
certFile.close()
#setup database
db.setup()
#load Plugins
PluginManager.load_plugins()
#start server
print "Opening Server on port 443"
server = SiriServer('', 443)
asyncore.loop()