mirror of
https://github.com/ammaraskar/pyCraft.git
synced 2024-11-24 19:25:33 +01:00
341 lines
16 KiB
Python
341 lines
16 KiB
Python
import socket
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import PacketListenerManager
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import urllib2
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import traceback
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import threading
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import hashlib
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import string
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import Utils
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import sys
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from networking import PacketSenderManager
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from Crypto.Random import _UserFriendlyRNG
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from Crypto.Util import asn1
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from Crypto.PublicKey import RSA
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from Crypto.Cipher import AES
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from Crypto.Cipher import PKCS1_v1_5
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EntityID = 0
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class ServerConnection(threading.Thread):
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def __init__(self, username, sessionID, server, port, options=None):
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threading.Thread.__init__(self)
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self.options = options
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self.isConnected = False
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self.username = username
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self.sessionID = sessionID
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self.server = server
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self.port = port
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def disconnect(self, reason="Disconnected by user"):
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PacketSenderManager.sendFF(self.socket, reason)
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self.listener.kill = True
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self.socket.close()
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def setWindow(self, window):
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self.window = window
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def grabSocket(self):
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return self.socket
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def run(self):
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try:
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#Create the socket and fileobject
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self.socket = socket.socket ( socket.AF_INET, socket.SOCK_STREAM )
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self.socket.connect ( ( self.server, self.port ) )
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self.FileObject = self.socket.makefile()
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#Send out the handshake packet
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PacketSenderManager.sendHandshake(self.socket, self.username, self.server, self.port)
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#Receive the encryption packet id
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packetid = self.socket.recv(1)
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#Sanity check the packet id
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assert packetid == "\xFD", "Server didn't respond back to handshake with proper packet!"
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#Parse the packet
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packetFD = PacketListenerManager.handleFD(self.FileObject)
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#Import the server's public key
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self.pubkey = RSA.importKey(packetFD['Public Key'])
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#Generate a 16 byte (128 bit) shared secret
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self.sharedSecret = _UserFriendlyRNG.get_random_bytes(16)
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#Authenticate the server from sessions.minecraft.net
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if(packetFD['ServerID'] != '-'):
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try:
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#Grab the server id
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sha1 = hashlib.sha1()
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sha1.update(packetFD['ServerID'])
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sha1.update(self.sharedSecret)
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sha1.update(packetFD['Public Key'])
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#lovely java style hex digest by barneygale
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serverid = Utils.javaHexDigest(sha1)
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#Open up the url with the appropriate get parameters
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url = "http://session.minecraft.net/game/joinserver.jsp?user=" + self.username + "&sessionId=" + self.sessionID + "&serverId=" + serverid
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response = urllib2.urlopen(url).read()
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if(response != "OK"):
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print "Response from sessions.minecraft.net wasn't OK, it was " + response
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return False
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#Success \o/ We can now begin sending our serverAddress to the server
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#Instantiate our main packet listener
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self.listener = PacketListener(self, self.socket, self.FileObject)
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self.listener.start()
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#Encrypt the verification token from earlier along with our shared secret with the server's rsa key
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self.RSACipher = PKCS1_v1_5.new(self.pubkey)
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encryptedSanityToken = self.RSACipher.encrypt(str(packetFD['Token']))
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encryptedSharedSecret = self.RSACipher.encrypt(str(self.sharedSecret))
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#Send out a a packet FC to the server
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PacketSenderManager.sendFC(self.socket, encryptedSharedSecret, encryptedSanityToken)
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except Exception, e:
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traceback.print_exc()
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else:
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print "Server is in offline mode"
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#Instantiate our main packet listener
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self.listener = PacketListener(self, self.socket, self.FileObject)
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self.listener.start()
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#Encrypt the verification token from earlier along with our shared secret with the server's rsa key
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self.RSACipher = PKCS1_v1_5.new(self.pubkey)
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encryptedSanityToken = self.RSACipher.encrypt(str(packetFD['Token']))
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encryptedSharedSecret = self.RSACipher.encrypt(str(self.sharedSecret))
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#Send out a a packet FC to the server
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PacketSenderManager.sendFC(self.socket, encryptedSharedSecret, encryptedSanityToken)
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except Exception, e:
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print "Connection to server failed"
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traceback.print_exc()
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sys.exit(1)
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return False
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class EncryptedFileObjectHandler():
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def __init__(self, fileobject, cipher):
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self.fileobject = fileobject
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self.cipher = cipher
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self.length = 0
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def read(self, length):
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rawData = self.fileobject.read(length)
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self.length += length
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unencryptedData = self.cipher.decrypt(rawData)
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return unencryptedData
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def tell(self):
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return self.length
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class EncryptedSocketObjectHandler():
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def __init__(self, socket, cipher):
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self.socket = socket
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self.cipher = cipher
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def send(self, serverAddress):
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self.socket.send(self.cipher.encrypt(serverAddress))
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def close(self):
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self.socket.close()
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class PacketListener(threading.Thread):
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def __init__(self, connection, socket, FileObject):
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threading.Thread.__init__(self)
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self.connection = connection
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self.socket = socket
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self.FileObject = FileObject
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self.encryptedConnection = False
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self.kill = False
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def enableEncryption(self):
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#Create an AES cipher from the previously obtained public key
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self.cipher = AES.new(self.connection.sharedSecret, AES.MODE_CFB, IV=self.connection.sharedSecret)
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self.decipher = AES.new(self.connection.sharedSecret, AES.MODE_CFB, IV=self.connection.sharedSecret)
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self.rawsocket = self.socket
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self.connection.rawsocket = self.connection.socket
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self.socket = EncryptedSocketObjectHandler(self.rawsocket, self.cipher)
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self.connection.socket = self.socket
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self.rawFileObject = self.FileObject
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self.connection.rawFileObject = self.connection.FileObject
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self.FileObject = EncryptedFileObjectHandler(self.rawFileObject, self.decipher)
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self.connection.FileObject = self.FileObject
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self.encryptedConnection = True
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def run(self):
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if(self.connection.options != None and self.connection.options.dumpPackets):
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f = open(self.connection.options.filename, 'w')
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while True:
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if (self.kill):
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break
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try:
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response = self.FileObject.read(1)
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if (response == ""):
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continue
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except Exception, e:
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if(self.window):
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self.window.Status.SetLabel("Ping timeout")
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else:
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print "Ping timeout"
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sys.exit()
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break
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if(response == "\x00"):
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packet = PacketListenerManager.handle00(self.FileObject, self.socket)
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elif(response == "\x01"):
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packet = PacketListenerManager.handle01(self.FileObject)
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print "Logged in \o/ Received an entity id of " + str(packet['EntityID'])
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elif(response == "\x03"):
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packet = PacketListenerManager.handle03(self.FileObject)
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# Add "\x1b" because it is essential for ANSI escapes emitted by translate_escapes
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filtered_string = filter(lambda x: x in string.printable + "\x1b", Utils.translate_escapes(packet['Message']))
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#print message.replace(u'\xa7', '&')
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print filtered_string
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packet['Message'] = filter(lambda x: x in string.printable, packet['Message'])
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elif(response == "\x04"):
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packet = PacketListenerManager.handle04(self.FileObject)
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elif(response == "\x05"):
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packet = PacketListenerManager.handle05(self.FileObject)
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elif(response == "\x06"):
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packet = PacketListenerManager.handle06(self.FileObject)
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elif(response == "\x07"):
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packet = PacketListenerManager.handle07(self.FileObject)
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elif(response == "\x08"):
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packet = PacketListenerManager.handle08(self.FileObject)
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elif(response == "\x09"):
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packet = PacketListenerManager.handle09(self.FileObject)
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elif(response == "\x0D"):
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packet = PacketListenerManager.handle0D(self.FileObject)
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elif(response == "\x11"):
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packet = PacketListenerManager.handle11(self.FileObject)
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elif(response == "\x12"):
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packet = PacketListenerManager.handle12(self.FileObject)
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elif(response == "\x14"):
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packet = PacketListenerManager.handle14(self.FileObject)
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elif(response == "\x15"):
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packet = PacketListenerManager.handle15(self.FileObject)
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elif(response == "\x16"):
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packet = PacketListenerManager.handle16(self.FileObject)
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elif(response == "\x17"):
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packet = PacketListenerManager.handle17(self.FileObject)
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elif(response == "\x18"):
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packet = PacketListenerManager.handle18(self.FileObject)
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elif(response == "\x19"):
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packet = PacketListenerManager.handle19(self.FileObject)
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elif(response == "\x1A"):
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packet = PacketListenerManager.handle1A(self.FileObject)
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elif(response == "\x1C"):
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packet = PacketListenerManager.handle1C(self.FileObject)
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elif(response == "\x1D"):
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packet = PacketListenerManager.handle1D(self.FileObject)
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elif(response == "\x1E"):
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packet = PacketListenerManager.handle1E(self.FileObject)
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elif(response == "\x1F"):
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packet = PacketListenerManager.handle1F(self.FileObject)
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elif(response == "\x20"):
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packet = PacketListenerManager.handle20(self.FileObject)
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elif(response == "\x21"):
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packet = PacketListenerManager.handle21(self.FileObject)
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elif(response == "\x22"):
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packet = PacketListenerManager.handle22(self.FileObject)
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elif(response == "\x23"):
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packet = PacketListenerManager.handle23(self.FileObject)
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elif(response == "\x26"):
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packet = PacketListenerManager.handle26(self.FileObject)
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elif(response == "\x27"):
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packet = PacketListenerManager.handle27(self.FileObject)
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elif(response == "\x28"):
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packet = PacketListenerManager.handle28(self.FileObject)
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elif(response == "\x29"):
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packet = PacketListenerManager.handle29(self.FileObject)
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elif(response == "\x2A"):
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packet = PacketListenerManager.handle2A(self.FileObject)
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elif(response == "\x2B"):
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packet = PacketListenerManager.handle2B(self.FileObject)
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elif(response == "\x33"):
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PacketListenerManager.handle33(self.FileObject)
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packet = {'ChunkPlaceHolder' : 0}
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elif(response == "\x34"):
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packet = PacketListenerManager.handle34(self.FileObject)
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elif(response == "\x35"):
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packet = PacketListenerManager.handle35(self.FileObject)
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elif(response == "\x36"):
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packet = PacketListenerManager.handle36(self.FileObject)
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elif(response == "\x37"):
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packet = PacketListenerManager.handle37(self.FileObject)
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elif(response == "\x38"):
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PacketListenerManager.handle38(self.FileObject)
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packet = {'ChunkPlaceHolder' : 0}
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elif(response == "\x3C"):
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packet = PacketListenerManager.handle3C(self.FileObject)
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elif(response == "\x3D"):
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packet = PacketListenerManager.handle3D(self.FileObject)
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elif(response == "\x3E"):
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packet = PacketListenerManager.handle3E(self.FileObject)
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elif(response == "\x46"):
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packet = PacketListenerManager.handle46(self.FileObject)
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elif(response == "\x47"):
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packet = PacketListenerManager.handle47(self.FileObject)
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elif(response == "\x64"):
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packet = PacketListenerManager.handle64(self.FileObject)
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elif(response == "\x65"):
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packet = PacketListenerManager.handle65(self.FileObject)
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elif(response == "\x67"):
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packet = PacketListenerManager.handle67(self.FileObject)
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elif(response == "\x68"):
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packet = PacketListenerManager.handle68(self.FileObject)
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elif(response == "\x69"):
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packet = PacketListenerManager.handle69(self.FileObject)
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elif(response == "\x6A"):
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packet = PacketListenerManager.handle6A(self.FileObject)
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elif(response == "\x6B"):
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packet = PacketListenerManager.handle6B(self.FileObject)
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elif(response == "\x82"):
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packet = PacketListenerManager.handle82(self.FileObject)
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elif(response == "\x83"):
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packet = PacketListenerManager.handle83(self.FileObject)
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elif(response == "\x84"):
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packet = PacketListenerManager.handle84(self.FileObject)
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elif(response == "\xC8"):
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packet = PacketListenerManager.handleC8(self.FileObject)
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elif(response == "\xC9"):
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packet = PacketListenerManager.handleC9(self.FileObject)
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elif(response == "\xCA"):
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packet = PacketListenerManager.handleCA(self.FileObject)
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elif(response == "\xCB"):
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packet = PacketListenerManager.handleCB(self.FileObject)
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elif(response == "\xFA"):
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packet = PacketListenerManager.handleFA(self.FileObject)
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elif(response == "\xFC"):
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packet = PacketListenerManager.handleFC(self.FileObject)
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if (not self.encryptedConnection):
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self.enableEncryption()
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self.connection.isConnected = True
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PacketSenderManager.sendCD(self.socket, 0)
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elif(response == "\xFF"):
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packet = PacketListenerManager.handleFF(self.FileObject)
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print "Disconnected: " + packet['Reason']
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if(self.connection.options != None and self.connection.options.dumpPackets):
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f.close()
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self.connection.disconnect()
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sys.exit(1)
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break
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else:
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print "Protocol error: " + hex(ord(response))
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self.connection.disconnect("Protocol error, invalid packet: " + hex(ord(response)))
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if(f != None):
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f.close()
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sys.exit(1)
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break
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if(self.connection.options != None and self.connection.options.dumpPackets):
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f.write(hex(ord(response)) + " : " + str(packet) + '\n')
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