commit 4d693cf148242f724d477796d4daa73cc15aa684 Author: Arturo Filastò art@fuffa.org Date: Sun Nov 25 20:05:04 2012 +0100

Add test state execution tracking and resume support * Clean up some debug messages --- ooni/config.py | 24 ++++++- ooni/oonicli.py | 54 +++++----------- ooni/reporter.py | 3 +- ooni/runner.py | 161 +++++++++++++++++++++++++++++++++++++++++++--- ooni/templates/scapyt.py | 1 - ooniprobe.conf | 2 +- 6 files changed, 192 insertions(+), 53 deletions(-)

diff --git a/ooni/config.py b/ooni/config.py index b017e87..e01900f 100644 --- a/ooni/config.py +++ b/ooni/config.py @@ -6,15 +6,28 @@ import os import yaml

-from twisted.internet import reactor, threads +from twisted.internet import reactor, threads, defer

from ooni.utils import otime from ooni.utils import Storage

reports = Storage() +scapyFactory = None +stateDict = None + +# XXX refactor this to use a database +resume_lock = defer.DeferredLock() + basic = None cmd_line_options = None -scapyFactory = None +resume_filename = None + +# XXX-Twisted this is used to check if we have started the reactor or not. It +# is necessary because if the tests are already concluded because we have +# resumed a test session then it will call reactor.run() even though there is +# no condition that will ever stop it. +# There should be a more twisted way of doing this. +start_reactor = True

def get_root_path(): this_directory = os.path.dirname(__file__) @@ -72,5 +85,12 @@ if not basic: # Here we make sure that we instance the config file attributes only once basic, privacy, advanced = loadConfigFile()

+if not resume_filename: + resume_filename = os.path.join(get_root_path(), 'ooniprobe.resume') + try: + with open(resume_filename) as f: pass + except IOError as e: + with open(resume_filename, 'w+') as f: pass + # This is used to keep track of the state of the sniffer sniffer_running = None diff --git a/ooni/oonicli.py b/ooni/oonicli.py index 1a316b3..3a8b3df 100644 --- a/ooni/oonicli.py +++ b/ooni/oonicli.py @@ -36,7 +36,8 @@ class Options(usage.Options): " network tests. These are loaded from modules, packages and" " files listed on the command line")

- optFlags = [["help", "h"]] + optFlags = [["help", "h"], + ["resume", "r"]]

optParameters = [["reportfile", "o", None, "report file name"], ["testdeck", "i", None, @@ -82,39 +83,9 @@ def testsEnded(*arg, **kw): You can place here all the post shutdown tasks. """ log.debug("testsEnded: Finished running all tests") - reactor.stop() - -def runTest(cmd_line_options): - config.cmd_line_options = cmd_line_options - config.generateReportFilenames() - - if cmd_line_options['reportfile']: - config.reports.yamloo = cmd_line_options['reportfile'] - config.reports.pcap = config.reports.yamloo+".pcap" - - if os.path.exists(config.reports.pcap): - print "Report PCAP already exists with filename %s" % config.reports.pcap - print "Renaming it to %s" % config.reports.pcap+'.old' - os.rename(config.reports.pcap, config.reports.pcap+'.old') - - classes = runner.findTestClassesFromFile(cmd_line_options['test']) - test_cases, options = runner.loadTestsAndOptions(classes, cmd_line_options) - if config.privacy.includepcap: - from ooni.utils.txscapy import ScapyFactory, ScapySniffer - try: - checkForRoot() - except NotRootError: - print "[!] Includepcap options requires root priviledges to run" - print " you should run ooniprobe as root or disable the options in ooniprobe.conf" - sys.exit(1) - - print "Starting sniffer" - config.scapyFactory = ScapyFactory(config.advanced.interface) - - sniffer = ScapySniffer(config.reports.pcap) - config.scapyFactory.registerProtocol(sniffer) - - return runner.runTestCases(test_cases, options, cmd_line_options) + config.start_reactor = False + try: reactor.stop() + except: pass

def run(): """ @@ -129,6 +100,7 @@ def run(): raise SystemExit, "%s: %s" % (sys.argv[0], ue)

deck_dl = [] + resume = cmd_line_options['resume']

log.start(cmd_line_options['logfile']) if cmd_line_options['testdeck']: @@ -136,15 +108,21 @@ def run(): for test in test_deck: del cmd_line_options cmd_line_options = test['options'] - d1 = runTest(cmd_line_options) + if resume: + cmd_line_options['resume'] = True + else: + cmd_line_options['resume'] = False + d1 = runner.runTest(cmd_line_options) deck_dl.append(d1) else: log.msg("No test deck detected") del cmd_line_options['testdeck'] - d1 = runTest(cmd_line_options) + d1 = runner.runTest(cmd_line_options) deck_dl.append(d1)

d2 = defer.DeferredList(deck_dl) - d2.addCallback(testsEnded) + d2.addBoth(testsEnded)

- reactor.run() + if config.start_reactor: + log.debug("Starting reactor") + reactor.run() diff --git a/ooni/reporter.py b/ooni/reporter.py index 63f501e..9986334 100644 --- a/ooni/reporter.py +++ b/ooni/reporter.py @@ -191,7 +191,7 @@ class OReporter(object): 'test_started': test_started, 'test_runtime': test_runtime, 'report': test_report} - return self.writeReportEntry(report) + return defer.maybeDeferred(self.writeReportEntry, report)

class YAMLReporter(OReporter): """ @@ -224,6 +224,7 @@ class YAMLReporter(OReporter): self._write('---\n') self._write(safe_dump(entry)) self._write('...\n') + return

@defer.inlineCallbacks def createReport(self, options): diff --git a/ooni/runner.py b/ooni/runner.py index d7856e6..77f9b03 100644 --- a/ooni/runner.py +++ b/ooni/runner.py @@ -14,6 +14,7 @@ import time import inspect import traceback import itertools +import yaml

from twisted.python import reflect, usage from twisted.internet import defer @@ -155,7 +156,9 @@ def runTestCasesWithInput(test_cases, test_input, oreporter): return oreporter.testDone(test_instance, test_name)

def test_error(failure, test_instance, test_name): + log.err("run Test Cases With Input problem") log.exception(failure) + return

def tests_done(result, test_class): test_instance = test_class() @@ -168,6 +171,7 @@ def runTestCasesWithInput(test_cases, test_input, oreporter): return oreporter.testDone(test_instance, 'summary') except NoPostProcessor: log.debug("No post processor configured") + return

dl = [] for test_case in test_cases: @@ -191,7 +195,6 @@ def runTestCasesWithInput(test_cases, test_input, oreporter): d = defer.maybeDeferred(test) d.addCallback(test_done, test_instance, test_method) d.addErrback(test_error, test_instance, test_method) - log.debug("returning %s input" % test_method) dl.append(d)

test_methods_d = defer.DeferredList(dl) @@ -221,6 +224,104 @@ def runTestCasesWithInputUnit(test_cases, input_unit, oreporter): dl.append(d) return defer.DeferredList(dl)

+class InvalidResumeFile(Exception): + pass + +class noResumeSession(Exception): + pass + +def loadResumeFile(): + """ + Sets the singleton stateDict object to the content of the resume file. + If the file is empty then it will create an empty one. + + Raises: + + :class:ooni.runner.InvalidResumeFile if the resume file is not valid + + """ + if not config.stateDict: + try: + config.stateDict = yaml.safe_load(open(config.resume_filename)) + except: + log.err("Error loading YAML file") + raise InvalidResumeFile + + if not config.stateDict: + yaml.safe_dump(dict(), open(config.resume_filename, 'w+')) + config.stateDict = dict() + + elif isinstance(config.stateDict, dict): + return + else: + log.err("The resume file is of the wrong format") + raise InvalidResumeFile + +def resumeTest(test_filename, input_unit_factory): + """ + Returns the an input_unit_factory that is at the index of the previous run of the test + for the specified test_filename. + + Args: + + test_filename (str): the filename of the test that is being run + including the .py extension. + + input_unit_factory (:class:ooni.inputunit.InputUnitFactory): with the + same input of the past run. + + Returns: + + :class:ooni.inputunit.InputUnitFactory that is at the index of the + previous test run. + + """ + try: + idx = config.stateDict[test_filename] + for x in range(idx): + try: + input_unit_factory.next() + except StopIteration: + log.msg("Previous run was complete") + return input_unit_factory + + return input_unit_factory + + except KeyError: + log.debug("No resume key found for selected test name. It is therefore 0") + config.stateDict[test_filename] = 0 + return input_unit_factory + +@defer.inlineCallbacks +def updateResumeFile(test_filename): + """ + update the resume file with the current stateDict state. + """ + log.debug("Acquiring lock for %s" % test_filename) + yield config.resume_lock.acquire() + + current_resume_state = yaml.safe_load(open(config.resume_filename)) + current_resume_state = config.stateDict + yaml.safe_dump(current_resume_state, open(config.resume_filename, 'w+')) + + log.debug("Releasing lock for %s" % test_filename) + config.resume_lock.release() + defer.returnValue(config.stateDict[test_filename]) + +@defer.inlineCallbacks +def increaseInputUnitIdx(test_filename): + """ + Args: + + test_filename (str): the filename of the test that is being run + including the .py extension. + + input_unit_idx (int): the current input unit index for the test. + + """ + config.stateDict[test_filename] += 1 + yield updateResumeFile(test_filename) + @defer.inlineCallbacks def runTestCases(test_cases, options, cmd_line_options): log.debug("Running %s" % test_cases) @@ -245,10 +346,10 @@ def runTestCases(test_cases, options, cmd_line_options): test_inputs = [None]

if cmd_line_options['collector']: - log.debug("Using remote collector") + log.msg("Using remote collector, please be patient while we create the report.") oreporter = reporter.OONIBReporter(cmd_line_options) else: - log.debug("Reporting to file %s" % config.reports.yamloo) + log.msg("Reporting to file %s" % config.reports.yamloo) oreporter = reporter.YAMLReporter(cmd_line_options)

try: @@ -256,8 +357,6 @@ def runTestCases(test_cases, options, cmd_line_options): except Exception, e: log.exception(e)

- log.debug("Creating report") - try: yield oreporter.createReport(options) except reporter.OONIBReportCreationFailed: @@ -266,17 +365,59 @@ def runTestCases(test_cases, options, cmd_line_options): except Exception, e: log.exception(e)

- # This deferred list is a deferred list of deferred lists - # it is used to store all the deferreds of the tests that - # are run - input_unit_idx = 0 + try: + loadResumeFile() + except InvalidResumeFile: + log.err("Error in loading resume file %s" % config.resume_filename) + log.err("Try deleting the resume file") + raise InvalidResumeFile + + test_filename = os.path.basename(cmd_line_options['test']) + + if cmd_line_options['resume']: + resumeTest(test_filename, input_unit_factory) + else: + config.stateDict[test_filename] = 0 + try: for input_unit in input_unit_factory: log.debug("Running this input unit %s" % input_unit) + yield runTestCasesWithInputUnit(test_cases, input_unit, oreporter) - input_unit_idx += 1 + yield increaseInputUnitIdx(test_filename)

except Exception: log.exception("Problem in running test")

+def runTest(cmd_line_options): + config.cmd_line_options = cmd_line_options + config.generateReportFilenames() + + if cmd_line_options['reportfile']: + config.reports.yamloo = cmd_line_options['reportfile'] + config.reports.pcap = config.reports.yamloo+".pcap" + + if os.path.exists(config.reports.pcap): + print "Report PCAP already exists with filename %s" % config.reports.pcap + print "Renaming it to %s" % config.reports.pcap+'.old' + os.rename(config.reports.pcap, config.reports.pcap+'.old') + + classes = findTestClassesFromFile(cmd_line_options['test']) + test_cases, options = loadTestsAndOptions(classes, cmd_line_options) + if config.privacy.includepcap: + from ooni.utils.txscapy import ScapyFactory, ScapySniffer + try: + checkForRoot() + except NotRootError: + print "[!] Includepcap options requires root priviledges to run" + print " you should run ooniprobe as root or disable the options in ooniprobe.conf" + sys.exit(1) + + print "Starting sniffer" + config.scapyFactory = ScapyFactory(config.advanced.interface) + + sniffer = ScapySniffer(config.reports.pcap) + config.scapyFactory.registerProtocol(sniffer) + + return runTestCases(test_cases, options, cmd_line_options) diff --git a/ooni/templates/scapyt.py b/ooni/templates/scapyt.py index a1eade4..a787115 100644 --- a/ooni/templates/scapyt.py +++ b/ooni/templates/scapyt.py @@ -140,7 +140,6 @@ class BaseScapyTest(NetTestCase): scapySender = ScapySender()

config.scapyFactory.registerProtocol(scapySender) - scapySender.sendPackets(packets)

scapySender.stopSending() diff --git a/ooniprobe.conf b/ooniprobe.conf index e9f208f..66ab017 100644 --- a/ooniprobe.conf +++ b/ooniprobe.conf @@ -26,7 +26,7 @@ advanced: threadpool_size: 10 tor_socksport: 9050 # For auto detection - interface: auto + interface: auto # Of specify a specific interface #interface: wlan0