ether2any/tunnel/vrfc1149/vrfc1149.py

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#!/usr/bin/python
# -*- coding: utf-8 -*-
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#
# Copyright (C) 2011 Sebastian Lohff <seba@seba-geek.de>
# Licensed under GPL v3 or later
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import base64
import collections
import logging
import math
import sys
import threading
import time
import tweepy
sys.path.append("../../../")
from conf import Conf
from ether2any import Ether2Any
class TwittStreamHandler(tweepy.StreamListener):
def __init__(self, dev, coder, debug=False):
super(TwittStreamHandler, self).__init__()
self.dev = dev
self.fragments = collections.defaultdict(str)
self.debug = debug
self.coder = coder
def on_status( self, status ):
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""" On status, decode and reassemble packet-status-texts. If complete, write them to the tun-dev. """
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sourcePacket = status.text
if self.debug:
print "in uni:", repr(sourcePacket)
(isFragment, packetLen, packetId, packet) = None, None, None, None
try:
(isFragment, packetLen, packetId, packet) = self.coder.decode(sourcePacket)
except ValueError, e:
print "Could not decode tweet, omitting (Error was: %s).\n\tText was: %s" % (e, repr(sourcePacket))
raise
return
if isFragment:
self.fragments[packetId] += packet
print " >+ Added fragment with id", packetId
else:
toSend = None
if self.fragments.has_key(packetId):
toSend = self.fragments[packetId] + packet
else:
toSend = packet
if toSend == '':
print " >! Received packet with id", packetId, "is BROKEN"
else:
print " >> Received packet with id", packetId
if self.debug:
print repr(toSend)
self.dev.write(toSend)
def on_limit(self, track):
print "We got limited ", track
print "At the moment there is no error-handling for this, so we just kill everything. Remember: This software doesn't even deserve the label 'alpha' ;)"
sys.exit(1)
def on_error(self, status_code):
print "We got an error code: ", status_code
if status_code == 401:
print "Better check 'yer twitter-credentials."
sys.exit(2)
else:
print "At the moment there is no error-handling for this, so we just kill everything. Remember: This software doesn't even deserve the label 'alpha' ;)"
sys.exit(1)
def on_timeout(self, status_code):
print "Got an timeout: ", status_code
print "At the moment there is no error-handling for this, so we just kill everything. Remember: This software doesn't even deserve the label 'alpha' ;)"
sys.exit(1)
# TODO: Thread is not needed, tweepy has its own threading. remove it
class DownstreamThread(threading.Thread):
def __init__(self, dev, coder, auth, endpoint, debug=False):
threading.Thread.__init__(self)
self.debug = debug
self.auth = auth
self.coder = coder
self.api = tweepy.API(self.auth)
self.endpoint = endpoint
self.dev = dev
self.daemon = True
def run(self):
stream = tweepy.Stream(auth=self.auth, listener=TwittStreamHandler(self.dev, self.coder, self.debug))
user = self.api.get_user(self.endpoint)
print "Endpoint is", self.endpoint, "with id", user.id
stream.filter([user.id])
class VRFC1149(Ether2Any):
def __init__(self, debug=False):
Ether2Any.__init__(self, tap=False)
self.debug = debug
network = Conf.get("network", {'mtu': 1400})
self.coder = Conf.get("coder", None)
self.twitterConf = Conf.get("twitter", None)
self.endpoint = self.twitterConf['endpoint']
if not self.endpoint:
print "No endpoint in configuration, please add one."
sys.exit(1)
self.dev.ifconfig(**network)
self.dev.up()
self._setupTwitter()
self.downstream = DownstreamThread(dev=self.dev, coder=self.coder, auth=self.auth, endpoint=self.endpoint, debug=self.debug)
self.downstream.start()
def _requestTwitterTokens(self):
auth = tweepy.OAuthHandler(self._dec(self.ck), self._dec(self.cs))
pass
def _setupTwitter(self):
ck = [17, 39, 65, 39, 25, 22, 38, 30, 20, 38, 33, 69, 27, 0, 61,
31, 61, 34, 42, 32]
cs = [71, 37, 71, 37, 57, 36, 18, 2, 59, 64, 63, 58, 23, 61, 74,
30, 34, 68, 38, 33, 56, 1, 3, 74, 29, 9, 41, 32, 33, 7, 52,
8, 70, 20, 30, 25, 38, 51, 57, 66, 53, 0, 42]
self.auth = tweepy.OAuthHandler(self._dec(ck), self._dec(cs))
if not self.twitterConf['ACCESS_KEY']:
# request tokens, get access, write tokens down.
auth_url = self.auth.get_authorization_url()
print "We have no access token for a twitter account. Please visit the"
print "url printed down below, login and report back with the PIN."
print
print " Authorization URL: %s" % auth_url
print
verifier = raw_input('PIN: ').strip()
self.auth.get_access_token(verifier)
self.twitterConf['ACCESS_KEY'] = self.auth.access_token.key
self.twitterConf['ACCESS_SECRET'] = self.auth.access_token.secret
authConf = open("conf_auth.py", "w")
authConf.write("""from conf import Conf
# WARNING: This config was overwritten! If you change it be sure
# that you know, what you are doing.
if not Conf['twitter']['ACCESS_KEY']:
Conf['twitter']['ACCESS_KEY'] = "%s"
Conf['twitter']['ACCESS_SECRET'] = "%s"
""" % (self.twitterConf['ACCESS_KEY'], self.twitterConf['ACCESS_SECRET']))
authConf.close()
self.auth.set_access_token(self.twitterConf['ACCESS_KEY'], self.twitterConf['ACCESS_SECRET'])
self.api = tweepy.API(self.auth)
self.me = self.api.me()
print "Logged in as %s" % (self.me.screen_name,)
def _dec(self, s):
""" ... """
return "".join(map(lambda x: chr(x+48), reversed(s)))
def sendToNet(self, packet):
fragments = self.coder.encode(packet)
if self.debug:
print "out raw:", repr(packet)
print "out frag:", repr(fragments)
print " >> Sending out %d bytes in %d tweet%s" % (len(packet), len(fragments), len(fragments)!=1 and "s" or "")
for fragment in fragments:
try:
self.api.update_status(fragment)
except tweepy.error.TweepError, e:
# TODO: Proper handling of
# - over 140 chars limit (bug in this software)
# - connection refused (retransmit)
# - limit reached (terminate or wait)
print " >! ERROR - Either connection refused or limited. Not sent."
print " >! ERROR - Either connection refused or limited. Not sent."
print " >! ERROR - Either connection refused or limited. Not sent."
print " >! ERROR - Either connection refused or limited. Not sent."
print "YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY"
print repr(fragment)
print "YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY"
print e
print " >! ERROR - Either connection refused or limited. Not sent."
print " >! ERROR - Either connection refused or limited. Not sent."
print " >! ERROR - Either connection refused or limited. Not sent."
if __name__ == '__main__':
rfc = VRFC1149(debug=True)
print "Starting virtual RFC1149 ip-over-twitter service..."
rfc.run()