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[tor-commits] [ooni-probe/master] Merge branch 'trial-refactor' into bridget-pt-merge-trial
commit 7e4f2834a3a2de48ccb77b0de42a24c78b3fc51a
Merge: f9f97ae 05dd861
Author: Isis Lovecruft <isis@xxxxxxxxxxxxxx>
Date: Thu Oct 4 13:47:47 2012 +0000
Merge branch 'trial-refactor' into bridget-pt-merge-trial
Conflicts:
ooni/plugins/new_bridget.py
ooni/utils/log.py
.gitignore | 3 +-
README.md | 18 +
bin/ooniprobe | 28 +-
docs/design.dia | Bin 1706 -> 1706 bytes
docs/source/api/ooni.rst | 60 +
docs/source/api/ooni.templates.rst | 11 +
docs/source/api/ooni.utils.rst | 51 +
docs/source/conf.py | 14 +-
docs/source/index.rst | 101 +-
docs/source/install.rst | 55 +
docs/source/tutorial.rst | 1 -
docs/source/writing_tests.rst | 88 +-
docs/writing_tests.md | 17 -
nettests/example_httpt.py | 32 +
nettests/example_scapyt.py | 15 +
nettests/myip.py | 18 +
ooni/assets/captive_portal_tests.txt | 4 -
ooni/assets/example.txt | 2 -
ooni/assets/greatfire.lst | 2100 --------------------
ooni/assets/redirects.yaml | 17 -
ooni/assets/tcpscan.txt | 2 -
ooni/inputunit.py | 65 +
ooni/lib/txscapy.py | 40 +-
ooni/nettest.py | 90 +
ooni/oonicli.py | 105 +
ooni/ooniprobe.py | 14 +-
ooni/oonitests/bridget.py | 373 ----
ooni/plugins/bridget.py | 6 +-
ooni/plugins/domclass.py | 35 +-
ooni/plugins/httpt.py | 9 +-
ooni/plugoo/interface.py | 1 +
ooni/plugoo/reports.py | 51 +-
ooni/plugoo/tests.py | 16 +-
ooni/plugoo/work.py | 2 -
ooni/protocols/http.py | 17 +-
ooni/reporter.py | 212 ++
ooni/runner.py | 193 ++
ooni/scaffolding.py | 10 +-
ooni/templates/httpt.py | 165 ++
ooni/templates/scapyt.py | 69 +
ooni/utils/__init__.py | 1 -
ooni/utils/hacks.py | 53 +
ooni/utils/log.py | 10 +-
43 files changed, 1507 insertions(+), 2667 deletions(-)
diff --cc ooni/plugins/bridget.py
index 92748c1,0000000..188009c
mode 100644,000000..100644
--- a/ooni/plugins/bridget.py
+++ b/ooni/plugins/bridget.py
@@@ -1,496 -1,0 +1,496 @@@
+#!/usr/bin/env python
+# -*- encoding: utf-8 -*-
- #
++#
+# +-----------+
+# | BRIDGET |
+# | +--------------------------------------------+
+# +--------| Use a Tor process to test making a Tor |
+# | connection to a list of bridges or relays. |
+# +--------------------------------------------+
+#
+# :authors: Isis Lovecruft, Arturo Filasto
+# :licence: see included LICENSE
+# :version: 0.1.0-alpha
+
+from __future__ import with_statement
+from functools import partial
+from random import randint
+
+import os
+import sys
+
+from twisted.python import usage
+from twisted.plugin import IPlugin
+from twisted.internet import defer, error, reactor
+from zope.interface import implements
+
+from ooni.utils import log, date
+from ooni.utils.config import ValueChecker
+from ooni.utils.onion import parse_data_dir
+from ooni.utils.onion import TxtorconImportError
+from ooni.utils.onion import PTNoBridgesException, PTNotFoundException
+from ooni.plugoo.tests import ITest, OONITest
+from ooni.plugoo.assets import Asset, MissingAssetException
+
+
+class RandomPortException(Exception):
+ """Raised when using a random port conflicts with configured ports."""
+ def __init__(self):
+ log.msg("Unable to use random and specific ports simultaneously")
+ return sys.exit()
+
+class BridgetArgs(usage.Options):
+ """Commandline options."""
+ allowed = "Port to use for Tor's %s, must be between 1024 and 65535."
+ sock_check = ValueChecker(allowed % "SocksPort").port_check
+ ctrl_check = ValueChecker(allowed % "ControlPort").port_check
+
+ optParameters = [
+ ['bridges', 'b', None,
+ 'File listing bridge IP:ORPorts to test'],
+ ['relays', 'f', None,
+ 'File listing relay IPs to test'],
+ ['socks', 's', 9049, None, sock_check],
+ ['control', 'c', 9052, None, ctrl_check],
+ ['torpath', 'p', None,
+ 'Path to the Tor binary to use'],
+ ['datadir', 'd', None,
+ 'Tor DataDirectory to use'],
+ ['transport', 't', None,
+ 'Tor ClientTransportPlugin'],
+ ['resume', 'r', 0,
+ 'Resume at this index']]
+ optFlags = [['random', 'x', 'Use random ControlPort and SocksPort']]
+
+ def postOptions(self):
+ if not self['bridges'] and not self['relays']:
+ raise MissingAssetException(
+ "Bridget can't run without bridges or relays to test!")
+ if self['transport']:
+ ValueChecker.uid_check(
+ "Can't run bridget as root with pluggable transports!")
+ if not self['bridges']:
+ raise PTNoBridgesException
+ if self['socks'] or self['control']:
+ if self['random']:
+ raise RandomPortException
+ if self['datadir']:
+ ValueChecker.dir_check(self['datadir'])
+ if self['torpath']:
+ ValueChecker.file_check(self['torpath'])
+
+class BridgetAsset(Asset):
+ """Class for parsing bridget Assets ignoring commented out lines."""
+ def __init__(self, file=None):
+ self = Asset.__init__(self, file)
+
+ def parse_line(self, line):
+ if line.startswith('#'):
+ return
+ else:
+ return line.replace('\n','')
+
+class BridgetTest(OONITest):
+ """
+ XXX fill me in
+
- :ivar config:
++ :ivar config:
+ An :class:`ooni.lib.txtorcon.TorConfig` instance.
+ :ivar relays:
+ A list of all provided relays to test.
+ :ivar bridges:
+ A list of all provided bridges to test.
+ :ivar socks_port:
+ Integer for Tor's SocksPort.
+ :ivar control_port:
+ Integer for Tor's ControlPort.
+ :ivar transport:
+ String defining the Tor's ClientTransportPlugin, for testing
+ a bridge's pluggable transport functionality.
+ :ivar tor_binary:
+ Path to the Tor binary to use, e.g. \'/usr/sbin/tor\'
+ """
+ implements(IPlugin, ITest)
+
+ shortName = "bridget"
+ description = "Use a Tor process to test connecting to bridges or relays"
+ requirements = None
+ options = BridgetArgs
+ blocking = False
+
+ def initialize(self):
+ """
+ Extra initialization steps. We only want one child Tor process
+ running, so we need to deal with most of the TorConfig() only once,
+ before the experiment runs.
+ """
+ self.socks_port = 9049
+ self.control_port = 9052
+ self.circuit_timeout = 90
+ self.tor_binary = '/usr/sbin/tor'
+ self.data_directory = None
+
+ def __make_asset_list__(opt, lst):
+ log.msg("Loading information from %s ..." % opt)
+ with open(opt) as opt_file:
+ for line in opt_file.readlines():
+ if line.startswith('#'):
+ continue
+ else:
+ lst.append(line.replace('\n',''))
+
+ def __count_remaining__(which):
+ total, reach, unreach = map(lambda x: which[x],
+ ['all', 'reachable', 'unreachable'])
+ count = len(total) - reach() - unreach()
+ return count
+
+ ## XXX should we do report['bridges_up'].append(self.bridges['current'])
+ self.bridges = {}
+ self.bridges['all'], self.bridges['up'], self.bridges['down'] = \
+ ([] for i in range(3))
+ self.bridges['reachable'] = lambda: len(self.bridges['up'])
+ self.bridges['unreachable'] = lambda: len(self.bridges['down'])
+ self.bridges['remaining'] = lambda: __count_remaining__(self.bridges)
+ self.bridges['current'] = None
+ self.bridges['pt_type'] = None
+ self.bridges['use_pt'] = False
+
+ self.relays = {}
+ self.relays['all'], self.relays['up'], self.relays['down'] = \
+ ([] for i in range(3))
+ self.relays['reachable'] = lambda: len(self.relays['up'])
+ self.relays['unreachable'] = lambda: len(self.relays['down'])
+ self.relays['remaining'] = lambda: __count_remaining__(self.relays)
+ self.relays['current'] = None
+
+ if self.local_options:
+ try:
+ from ooni.lib.txtorcon import TorConfig
+ except ImportError:
+ raise TxtorconImportError
+ else:
+ self.config = TorConfig()
+ finally:
+ options = self.local_options
+
+ if options['bridges']:
+ self.config.UseBridges = 1
+ __make_asset_list__(options['bridges'], self.bridges['all'])
+ if options['relays']:
+ ## first hop must be in TorState().guards
+ self.config.EntryNodes = ','.join(relay_list)
+ __make_asset_list__(options['relays'], self.relays['all'])
+ if options['socks']:
+ self.socks_port = options['socks']
+ if options['control']:
+ self.control_port = options['control']
+ if options['random']:
+ log.msg("Using randomized ControlPort and SocksPort ...")
+ self.socks_port = randint(1024, 2**16)
+ self.control_port = randint(1024, 2**16)
+ if options['torpath']:
+ self.tor_binary = options['torpath']
+ if options['datadir']:
+ self.data_directory = parse_data_dir(options['datadir'])
+ if options['transport']:
+ ## ClientTransportPlugin transport exec pathtobinary [options]
+ ## XXX we need a better way to deal with all PTs
+ log.msg("Using ClientTransportPlugin %s" % options['transport'])
+ self.bridges['use_pt'] = True
+ [self.bridges['pt_type'], pt_exec] = \
+ options['transport'].split(' ', 1)
+
+ if self.bridges['pt_type'] == "obfs2":
+ self.config.ClientTransportPlugin = \
+ self.bridges['pt_type'] + " " + pt_exec
+ else:
+ raise PTNotFoundException
+
+ self.config.SocksPort = self.socks_port
+ self.config.ControlPort = self.control_port
+ self.config.CookieAuthentication = 1
+
+ def __load_assets__(self):
+ """
+ Load bridges and/or relays from files given in user options. Bridges
+ should be given in the form IP:ORport. We don't want to load these as
+ assets, because it's inefficient to start a Tor process for each one.
+
+ We cannot use the Asset model, because that model calls
+ self.experiment() with the current Assets, which would be one relay
+ and one bridge, then it gives the defer.Deferred returned from
+ self.experiment() to self.control(), which means that, for each
+ (bridge, relay) pair, experiment gets called again, which instantiates
+ an additional Tor process that attempts to bind to the same
+ ports. Thus, additionally instantiated Tor processes return with
+ RuntimeErrors, which break the final defer.chainDeferred.callback(),
+ sending it into the errback chain.
+ """
+ assets = {}
+ if self.local_options:
+ if self.local_options['bridges']:
+ assets.update({'bridge':
+ BridgetAsset(self.local_options['bridges'])})
+ if self.local_options['relays']:
+ assets.update({'relay':
+ BridgetAsset(self.local_options['relays'])})
+ return assets
+
+ def experiment(self, args):
+ """
+ if bridges:
+ 1. configure first bridge line
+ 2a. configure data_dir, if it doesn't exist
+ 2b. write torrc to a tempfile in data_dir
+ 3. start tor } if any of these
+ 4. remove bridges which are public relays } fail, add current
+ 5. SIGHUP for each bridge } bridge to unreach-
+ } able bridges.
+ if relays:
+ 1a. configure the data_dir, if it doesn't exist
+ 1b. write torrc to a tempfile in data_dir
+ 2. start tor
+ 3. remove any of our relays which are already part of current
+ circuits
+ 4a. attach CustomCircuit() to self.state
+ 4b. RELAY_EXTEND for each relay } if this fails, add
+ } current relay to list
+ } of unreachable relays
+ 5.
+ if bridges and relays:
+ 1. configure first bridge line
+ 2a. configure data_dir if it doesn't exist
+ 2b. write torrc to a tempfile in data_dir
+ 3. start tor
+ 4. remove bridges which are public relays
+ 5. remove any of our relays which are already part of current
+ circuits
+ 6a. attach CustomCircuit() to self.state
+ 6b. for each bridge, build three circuits, with three
+ relays each
+ 6c. RELAY_EXTEND for each relay } if this fails, add
+ } current relay to list
+ } of unreachable relays
+
+ :param args:
+ The :class:`BridgetAsset` line currently being used. Except that it
+ in Bridget it doesn't, so it should be ignored and avoided.
+ """
+ try:
+ from ooni.utils import process
+ from ooni.utils.onion import remove_public_relays, start_tor
+ from ooni.utils.onion import start_tor_filter_nodes
+ from ooni.utils.onion import setup_fail, setup_done
+ from ooni.utils.onion import CustomCircuit
+ from ooni.utils.timer import deferred_timeout, TimeoutError
+ from ooni.lib.txtorcon import TorConfig, TorState
+ except ImportError:
+ raise TxtorconImportError
+ except TxtorconImportError, tie:
+ log.err(tie)
+ sys.exit()
+
+ def reconfigure_done(state, bridges):
+ """
+ Append :ivar:`bridges['current']` to the list
+ :ivar:`bridges['up'].
+ """
+ log.msg("Reconfiguring with 'Bridge %s' successful"
+ % bridges['current'])
+ bridges['up'].append(bridges['current'])
+ return state
+
+ def reconfigure_fail(state, bridges):
+ """
+ Append :ivar:`bridges['current']` to the list
+ :ivar:`bridges['down'].
+ """
+ log.msg("Reconfiguring TorConfig with parameters %s failed"
+ % state)
+ bridges['down'].append(bridges['current'])
+ return state
+
+ @defer.inlineCallbacks
+ def reconfigure_bridge(state, bridges):
+ """
+ Rewrite the Bridge line in our torrc. If use of pluggable
+ transports was specified, rewrite the line as:
+ Bridge <transport_type> <IP>:<ORPort>
+ Otherwise, rewrite in the standard form:
+ Bridge <IP>:<ORPort>
+
+ :param state:
+ A fully bootstrapped instance of
+ :class:`ooni.lib.txtorcon.TorState`.
+ :param bridges:
+ A dictionary of bridges containing the following keys:
+
+ bridges['remaining'] :: A function returning and int for the
+ number of remaining bridges to test.
+ bridges['current'] :: A string containing the <IP>:<ORPort>
+ of the current bridge.
+ bridges['use_pt'] :: A boolean, True if we're testing
+ bridges with a pluggable transport;
+ False otherwise.
+ bridges['pt_type'] :: If :ivar:`bridges['use_pt'] is True,
+ this is a string containing the type
+ of pluggable transport to test.
+ :return:
+ :param:`state`
+ """
+ log.msg("Current Bridge: %s" % bridges['current'])
+ log.msg("We now have %d bridges remaining to test..."
+ % bridges['remaining']())
+ try:
+ if bridges['use_pt'] is False:
+ controller_response = yield state.protocol.set_conf(
+ 'Bridge', bridges['current'])
+ elif bridges['use_pt'] and bridges['pt_type'] is not None:
+ controller_reponse = yield state.protocol.set_conf(
+ 'Bridge', bridges['pt_type'] +' '+ bridges['current'])
+ else:
+ raise PTNotFoundException
+
+ if controller_response == 'OK':
+ finish = yield reconfigure_done(state, bridges)
+ else:
+ log.err("SETCONF for %s responded with error:\n %s"
+ % (bridges['current'], controller_response))
+ finish = yield reconfigure_fail(state, bridges)
+
+ defer.returnValue(finish)
+
+ except Exception, e:
+ log.err("Reconfiguring torrc with Bridge line %s failed:\n%s"
+ % (bridges['current'], e))
+ defer.returnValue(None)
+
+ def attacher_extend_circuit(attacher, deferred, router):
+ ## XXX todo write me
+ ## state.attacher.extend_circuit
+ raise NotImplemented
+ #attacher.extend_circuit
+
+ def state_attach(state, path):
+ log.msg("Setting up custom circuit builder...")
+ attacher = CustomCircuit(state)
+ state.set_attacher(attacher, reactor)
+ state.add_circuit_listener(attacher)
+ return state
+
+ ## OLD
+ #for circ in state.circuits.values():
+ # for relay in circ.path:
+ # try:
+ # relay_list.remove(relay)
+ # except KeyError:
+ # continue
+ ## XXX how do we attach to circuits with bridges?
+ d = defer.Deferred()
+ attacher.request_circuit_build(d)
+ return d
+
+ def state_attach_fail(state):
+ log.err("Attaching custom circuit builder failed: %s" % state)
+
+ log.msg("Bridget: initiating test ... ") ## Start the experiment
+
+ ## if we've at least one bridge, and our config has no 'Bridge' line
+ if self.bridges['remaining']() >= 1 \
+ and not 'Bridge' in self.config.config:
+
+ ## configure our first bridge line
+ self.bridges['current'] = self.bridges['all'][0]
+ self.config.Bridge = self.bridges['current']
+ ## avoid starting several
+ self.config.save() ## processes
+ assert self.config.config.has_key('Bridge'), "No Bridge Line"
+
+ ## start tor and remove bridges which are public relays
+ from ooni.utils.onion import start_tor_filter_nodes
+ state = start_tor_filter_nodes(reactor, self.config,
+ self.control_port, self.tor_binary,
+ self.data_directory, self.bridges)
+ #controller = defer.Deferred()
+ #controller.addCallback(singleton_semaphore, tor)
+ #controller.addErrback(setup_fail)
+ #bootstrap = defer.gatherResults([controller, filter_bridges],
+ # consumeErrors=True)
+
+ if state is not None:
+ log.debug("state:\n%s" % state)
+ log.debug("Current callbacks on TorState():\n%s"
+ % state.callbacks)
+
+ ## if we've got more bridges
+ if self.bridges['remaining']() >= 2:
+ #all = []
+ for bridge in self.bridges['all'][1:]:
+ self.bridges['current'] = bridge
+ #new = defer.Deferred()
+ #new.addCallback(reconfigure_bridge, state, self.bridges)
+ #all.append(new)
+ #check_remaining = defer.DeferredList(all, consumeErrors=True)
+ #state.chainDeferred(check_remaining)
+ state.addCallback(reconfigure_bridge, self.bridges)
+
+ if self.relays['remaining']() > 0:
+ while self.relays['remaining']() >= 3:
+ #path = list(self.relays.pop() for i in range(3))
+ #log.msg("Trying path %s" % '->'.join(map(lambda node:
+ # node, path)))
+ self.relays['current'] = self.relays['all'].pop()
+ for circ in state.circuits.values():
+ for node in circ.path:
+ if node == self.relays['current']:
+ self.relays['up'].append(self.relays['current'])
+ if len(circ.path) < 3:
+ try:
+ ext = attacher_extend_circuit(state.attacher, circ,
+ self.relays['current'])
+ ext.addCallback(attacher_extend_circuit_done,
+ state.attacher, circ,
+ self.relays['current'])
+ except Exception, e:
+ log.err("Extend circuit failed: %s" % e)
+ else:
+ continue
+
+ #state.callback(all)
+ #self.reactor.run()
+ return state
+
+ def startTest(self, args):
+ """
+ Local override of :meth:`OONITest.startTest` to bypass calling
+ self.control.
+
+ :param args:
+ The current line of :class:`Asset`, not used but kept for
+ compatibility reasons.
+ :return:
+ A fired deferred which callbacks :meth:`experiment` and
+ :meth:`OONITest.finished`.
+ """
+ self.start_time = date.now()
+ self.d = self.experiment(args)
+ self.d.addErrback(log.err)
+ self.d.addCallbacks(self.finished, log.err)
+ return self.d
+
+## So that getPlugins() can register the Test:
+bridget = BridgetTest(None, None, None)
+
+
+## ISIS' NOTES
+## -----------
- ##
+## TODO:
+## x cleanup documentation
+## x add DataDirectory option
+## x check if bridges are public relays
+## o take bridge_desc file as input, also be able to give same
+## format as output
+## x Add asynchronous timeout for deferred, so that we don't wait
++## o Add assychronous timout for deferred, so that we don't wait
+## forever for bridges that don't work.
diff --cc ooni/utils/log.py
index fe737f5,6ff6bf9..63b7c27
--- a/ooni/utils/log.py
+++ b/ooni/utils/log.py
@@@ -36,11 -36,11 +36,11 @@@ class OONITestFailure(Failure)
Can be given an Exception as an argument, else will use the
most recent Exception from the current stack frame.
"""
- def __init__(self, _type=None,
+ def __init__(self, exception=None, _type=None,
_traceback=None, _capture=False):
- Failure.__init__(self, exc_value=exception, exc_type=_type,
+ Failure.__init__(self, exc_type=_type,
exc_tb=_traceback, captureVars=_capture)
-
+
class OONILogObserver(log.FileLogObserver):
"""
Supports logging level verbosity.
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