import socket import wx import PacketListenerManager import urllib2 import urllib import traceback import threading import hashlib import string import Utils from networking import PacketSenderManager from Crypto.Random import _UserFriendlyRNG from Crypto.Util import asn1 from Crypto.PublicKey import RSA from Crypto.Cipher import AES from Crypto.Cipher import PKCS1_v1_5 #Eclipse pyDev error fix wx=wx EntityID = 0 class ServerConnection(threading.Thread): def __init__(self, window, username, password, sessionID, server, port): threading.Thread.__init__(self) self.username = username self.password = password self.sessionID = sessionID self.server = server self.port = port if(window == None): self.NoGUI = True else: self.NoGUI = False self.window = window def setWindow(self, window): self.window = window def grabSocket(self): return self.socket def run(self): try: #Create the socket and fileobject self.socket = socket.socket ( socket.AF_INET, socket.SOCK_STREAM ) self.socket.connect ( ( self.server, self.port ) ) self.FileObject = self.socket.makefile() #Send out the handshake packet PacketSenderManager.sendHandshake(self.socket, self.username, self.server, self.port) #Receive the encryption packet id packetid = self.socket.recv(1) #Sanity check the packet id if (packetid != "\xFD"): if(self.NoGUI == False): self.window.ConnectPanel.Status.SetFont(wx.Font(15, wx.MODERN, wx.NORMAL, wx.NORMAL, 0, "Minecraft")) self.window.ConnectPanel.Status.SetLabel("Server responded with malformed packet") else: print "Server responded with malformed packet" return False #Parse the packet packetFD = PacketListenerManager.handleFD(self.FileObject) #Import the server's public key self.pubkey = RSA.importKey(packetFD['Public Key']) #Generate a 16 byte (128 bit) shared secret self.sharedSecret = _UserFriendlyRNG.get_random_bytes(16) #Grab the server id sha1 = hashlib.sha1() sha1.update(packetFD['ServerID']) sha1.update(self.sharedSecret) sha1.update(packetFD['Public Key']) #lovely java style hex digest by SirCmpwn sha1 = sha1.hexdigest() negative = (int(sha1[0], 16) & 0x80) == 0x80 if(negative): sha1 = Utils.TwosCompliment(sha1.digest()) #else: # sha1 = sha1.digest() Utils.trimStart(str(sha1), '0') if (negative): sha1 = '-' + sha1 serverid = sha1 #Authenticate the server from sessions.minecraft.net if(serverid != '-'): try: #Open up the url with the appropriate get parameters url = "http://session.minecraft.net/game/joinserver.jsp?user=" + self.username + "&sessionId=" + self.sessionID + "&serverId=" + serverid response = urllib2.urlopen(url).read() if(response != "OK"): #handle gui errors if(self.NoGUI == False): self.window.ConnectPanel.Status.SetFont(wx.Font(15, wx.MODERN, wx.NORMAL, wx.NORMAL, 0, "Minecraft")) self.window.ConnectPanel.Status.SetLabel("Response from sessions.minecraft.net wasn't OK") else: print "Response from sessions.minecraft.net wasn't OK, it was " + response return False #Success \o/ We can now begin sending our stuff to the server #Instantiate our main packet listener PacketListener(self, self.window, self.socket, self.FileObject).start() #Encrypt the verification token from earlier along with our shared secret with the server's rsa key self.RSACipher = PKCS1_v1_5.new(self.pubkey) encryptedSanityToken = self.RSACipher.encrypt(str(packetFD['Token'])) encryptedSharedSecret = self.RSACipher.encrypt(str(self.sharedSecret)) #Send out a a packet FC to the server PacketSenderManager.sendFC(self.socket, encryptedSharedSecret, encryptedSanityToken) #GUI handling if(self.NoGUI == False): self.window.ConnectPanel.callbackAfterConnect() #Wait for server screen to be ready while(not hasattr(self.window, 'text')): continue except Exception, e: #handle gui errors if(self.NoGUI == False and hasattr(self.window, 'ConnectPanel')): self.window.ConnectPanel.Status.SetForegroundColour(wx.RED) self.window.ConnectPanel.Status.SetLabel("Conection to sessions.mc.net failed") self.window.ConnectPanel.RotationThread.Kill = True traceback.print_exc() else: if(self.NoGUI): print "Server is in offline mode" #TODO: handle offline mod servers except Exception, e: if(self.NoGUI == False and self.window): self.window.ConnectPanel.Status.SetForegroundColour(wx.RED) self.window.ConnectPanel.Status.SetLabel("Connection to server failed") self.window.ConnectPanel.RotationThread.Kill = True else: print "Connection to server failed" traceback.print_exc() return False #self.window.Status.SetLabel("Connected to " + self.server + "!") class EncryptedFileObjectHandler(): def __init__(self, fileobject, cipher): self.fileobject = fileobject self.cipher = cipher def read(self, length): rawData = self.fileobject.read(length) unencryptedData = self.cipher.decrypt(rawData) return unencryptedData class EncryptedSocketObjectHandler(): def __init__(self, socket, cipher): self.socket = socket self.cipher = cipher def send(self, stuff): self.socket.send(self.cipher.encrypt(stuff)) def close(self): self.socket.close() class PacketListener(threading.Thread): def __init__(self, connection, window, socket, FileObject): threading.Thread.__init__(self) self.connection = connection self.socket = socket self.FileObject = FileObject self.window = window self.encryptedConnection = False def enableEncryption(self): #Create an AES cipher from the previously obtained public key self.cipher = AES.new(self.connection.sharedSecret, AES.MODE_CFB, IV=self.connection.sharedSecret) self.decipher = AES.new(self.connection.sharedSecret, AES.MODE_CFB, IV=self.connection.sharedSecret) self.rawsocket = self.socket self.socket = EncryptedSocketObjectHandler(self.rawsocket, self.cipher) self.rawFileObject = self.FileObject self.FileObject = EncryptedFileObjectHandler(self.rawFileObject, self.decipher) self.encryptedConnection = True def run(self): while True: try: response = self.FileObject.read(1) if (response == ""): continue except Exception, e: if(self.window): self.window.Status.SetLabel("Ping timeout") else: print "Ping timeout" traceback.print_exc() break if(response == "\x00"): PacketListenerManager.handle00(self.FileObject, self.socket) elif(response == "\x01"): packet01 = PacketListenerManager.handle01(self.FileObject) print "Logged in \o/ Received an entity id of " + str(packet01['EntityID']) elif(response == "\x03"): message = PacketListenerManager.handle03(self.FileObject) if(self.connection.NoGUI): filtered_string = filter(lambda x: x in string.printable, message) #print message.replace(u'\xa7', '&') print filtered_string elif(self.window): self.window.handleChat(message) elif(response == "\x04"): PacketListenerManager.handle04(self.FileObject) elif(response == "\x05"): PacketListenerManager.handle05(self.FileObject) elif(response == "\x06"): PacketListenerManager.handle06(self.FileObject) elif(response == "\x07"): PacketListenerManager.handle07(self.FileObject) elif(response == "\x08"): PacketListenerManager.handle08(self.FileObject) elif(response == "\x09"): PacketListenerManager.handle09(self.FileObject) elif(response == "\x0D"): PacketListenerManager.handle0D(self.FileObject) elif(response == "\x11"): PacketListenerManager.handle11(self.FileObject) elif(response == "\x12"): PacketListenerManager.handle12(self.FileObject) elif(response == "\x14"): PacketListenerManager.handle14(self.FileObject) elif(response == "\x15"): PacketListenerManager.handle15(self.FileObject) elif(response == "\x16"): PacketListenerManager.handle16(self.FileObject) elif(response == "\x17"): PacketListenerManager.handle17(self.FileObject) elif(response == "\x18"): PacketListenerManager.handle18(self.FileObject) elif(response == "\x19"): PacketListenerManager.handle19(self.FileObject) elif(response == "\x1A"): PacketListenerManager.handle1A(self.FileObject) elif(response == "\x1C"): PacketListenerManager.handle1C(self.FileObject) elif(response == "\x1D"): PacketListenerManager.handle1D(self.FileObject) elif(response == "\x1E"): PacketListenerManager.handle1E(self.FileObject) elif(response == "\x1F"): PacketListenerManager.handle1F(self.FileObject) elif(response == "\x20"): PacketListenerManager.handle20(self.FileObject) elif(response == "\x21"): PacketListenerManager.handle21(self.FileObject) elif(response == "\x22"): PacketListenerManager.handle22(self.FileObject) elif(response == "\x23"): PacketListenerManager.handle23(self.FileObject) elif(response == "\x26"): PacketListenerManager.handle26(self.FileObject) elif(response == "\x27"): PacketListenerManager.handle27(self.FileObject) elif(response == "\x28"): PacketListenerManager.handle28(self.FileObject) elif(response == "\x29"): PacketListenerManager.handle29(self.FileObject) elif(response == "\x2A"): PacketListenerManager.handle2A(self.FileObject) elif(response == "\x2B"): PacketListenerManager.handle2B(self.FileObject) elif(response == "\x33"): PacketListenerManager.handle33(self.FileObject) elif(response == "\x34"): PacketListenerManager.handle34(self.FileObject) elif(response == "\x35"): PacketListenerManager.handle35(self.FileObject) elif(response == "\x36"): PacketListenerManager.handle36(self.FileObject) elif(response == "\x37"): PacketListenerManager.handle37(self.FileObject) elif(response == "\x38"): PacketListenerManager.handle38(self.FileObject) elif(response == "\x3C"): PacketListenerManager.handle3C(self.FileObject) elif(response == "\x3D"): PacketListenerManager.handle3D(self.FileObject) elif(response == "\x3E"): PacketListenerManager.handle3E(self.FileObject) elif(response == "\x46"): PacketListenerManager.handle46(self.FileObject) elif(response == "\x47"): PacketListenerManager.handle47(self.FileObject) elif(response == "\x64"): PacketListenerManager.handle64(self.FileObject) elif(response == "\x65"): PacketListenerManager.handle65(self.FileObject) elif(response == "\x67"): PacketListenerManager.handle67(self.FileObject) elif(response == "\x68"): PacketListenerManager.handle68(self.FileObject) elif(response == "\x69"): PacketListenerManager.handle69(self.FileObject) elif(response == "\x6A"): PacketListenerManager.handle6A(self.FileObject) elif(response == "\x6B"): PacketListenerManager.handle6B(self.FileObject) elif(response == "\x82"): PacketListenerManager.handle82(self.FileObject) elif(response == "\x83"): PacketListenerManager.handle83(self.FileObject) elif(response == "\x84"): PacketListenerManager.handle84(self.FileObject) elif(response == "\xC8"): PacketListenerManager.handleC8(self.FileObject) elif(response == "\xC9"): PacketListenerManager.handleC9(self.FileObject) elif(response == "\xCA"): PacketListenerManager.handleCA(self.FileObject) elif(response == "\xCB"): PacketListenerManager.handleCB(self.FileObject) elif(response == "\xFA"): PacketListenerManager.handleFA(self.FileObject) elif(response == "\xFC"): PacketListenerManager.handleFC(self.FileObject) if (not self.encryptedConnection): self.enableEncryption() PacketSenderManager.sendCD(self.socket, 0) elif(response == "\xFF"): DisconMessage = PacketListenerManager.handleFF(self.FileObject) if(self.window == None): print "Disconnected: " + DisconMessage if(self.window): if(hasattr(self.window, 'ChatPanel')): self.window.ChatPanel.Status.SetLabel("Disconnected: " + DisconMessage) if(hasattr(self.window, 'Status')): self.window.Status.SetLabel("Disconnected: " + DisconMessage) self.socket.close() break else: if(self.window == None): print "Protocol error: " + hex(ord(response)) self.socket.close() break