commit 5028911580a1c003f4dbf1dff0bd8043c528ef72 Author: Arturo Filastò hellais@torproject.org Date: Thu May 31 03:32:04 2012 +0200

Prove how easy it is to port old test to the new model --- ooni/plugins/httphost.py | 121 ++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 121 insertions(+), 0 deletions(-)

diff --git a/ooni/plugins/httphost.py b/ooni/plugins/httphost.py new file mode 100644 index 0000000..17e2e11 --- /dev/null +++ b/ooni/plugins/httphost.py @@ -0,0 +1,121 @@ +""" + HTTP Host based filtering + ************************* + + This test detect HTTP Host field + based filtering. +""" +import os +from datetime import datetime + +import urllib2 +import httplib + +from BeautifulSoup import BeautifulSoup + +# XXX reduce boilerplating. +from zope.interface import implements +from twisted.python import usage +from twisted.plugin import IPlugin + +from ooni.plugoo.assets import Asset +from ooni.plugoo.tests import ITest, TwistedTest + +class HTTPHostArgs(usage.Options): + optParameters = [['asset', 'a', None, 'Asset file'], + ['controlserver', 'c', None, 'Specify the control server'], + ['resume', 'r', 0, 'Resume at this index'], + ['other', 'o', None, 'Other arguments']] + def control(self, experiment_result, args): + print "Experiment Result:", experiment_result + print "Args", args + return experiment_result + + def experiment(self, args): + import urllib + req = urllib.urlopen(args['asset']) + return {'page': req.readlines()} + +class HTTPHostAsset(Asset): + """ + This is the asset that should be used by the Test. It will + contain all the code responsible for parsing the asset file + and should be passed on instantiation to the test. + """ + def __init__(self, file=None): + self = Asset.__init__(self, file) + + def parse_line(self, line): + return line.split(',')[1].replace('\n','') + + +class HTTPHostTest(TwistedTest): + implements(IPlugin, ITest) + + shortName = "httphost" + description = "HTTP Host plugin" + requirements = None + options = HTTPHostArgs + # Tells this to be blocking. + blocking = True + + def check_response(self, response): + soup = BeautifulSoup(response) + if soup.head.title.string == "WikiLeaks": + # Response indicates censorship + return True + else: + # Response does not indicate censorship + return False + + def is_censored(self, response): + if response: + soup = BeautifulSoup(response) + censored = self.check_response(response) + else: + censored = "unreachable" + return censored + + def urllib2_test(self, control_server, host): + req = urllib2.Request(control_server) + req.add_header('Host', host) + try: + r = urllib2.urlopen(req) + response = r.read() + censored = self.is_censored(response) + except Exception, e: + censored = "Error! %s" % e + + return censored + + def httplib_test(self, control_server, host): + try: + conn = httplib.HTTPConnection(control_server) + conn.putrequest("GET", "", skip_host=True, skip_accept_encoding=True) + conn.putheader("Host", host) + conn.putheader("User-Agent", "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.8.1.6") + conn.endheaders() + r = conn.getresponse() + response = r.read() + censored = self.is_censored(response) + except Exception, e: + censored = "Error! %s" % e + respopnse = None + + return (censored, response) + + def experiment(self, args): + control_server = self.local_options['controlserver'] + print args + censored = self.httplib_test(control_server, args['asset']) + return {'control': control_server, + 'host': args['asset'], + 'censored': censored} + + def load_assets(self): + if self.local_options: + return {'asset': Asset(self.local_options['asset'])} + else: + return {} + +httphost = HTTPHostTest(None, None, None)