#!/usr/bin/env python3 import collections import slixmpp import asyncio import logging import signal import atexit import lxml.etree import sys import io import os from functools import partial from slixmpp.xmlstream.matcher.base import MatcherBase class MatchAll(MatcherBase): """match everything""" def match(self, xml): return True class StanzaError(Exception): """ Raised when a step fails. """ pass class SkipStepError(Exception): """ Raised by a step when it needs to be skiped, by running the next available step immediately. """ pass class XMPPComponent(slixmpp.BaseXMPP): """ XMPPComponent sending a “scenario” of stanzas, checking that the responses match the expected results. """ def __init__(self, scenario, biboumi): super().__init__(jid="biboumi.localhost", default_ns="jabber:component:accept") self.is_component = True self.stream_header = '' % ( 'xmlns="jabber:component:accept"', 'xmlns:stream="%s"' % self.stream_ns, self.boundjid, self.get_id()) self.stream_footer = "" self.register_handler(slixmpp.Callback('Match All', MatchAll(None), self.handle_incoming_stanza)) self.add_event_handler("session_end", self.on_end_session) asyncio.async(self.accept_routine()) self.scenario = scenario self.biboumi = biboumi # A callable, taking a stanza as argument and raising a StanzaError # exception if the test should fail. self.stanza_checker = None self.failed = False self.accepting_server = None def error(self, message): print("Failure: %s" % (message,)) self.scenario.steps = [] self.failed = True def on_end_session(self, event): self.loop.stop() def handle_incoming_stanza(self, stanza): if self.stanza_checker: try: self.stanza_checker(stanza) except StanzaError as e: self.error(e) except SkipStepError: # Run the next step and then re-handle this same stanza self.run_scenario() return self.handle_incoming_stanza(stanza) self.stanza_checker = None self.run_scenario() def run_scenario(self): if scenario.steps: step = scenario.steps.pop(0) step(self, self.biboumi) else: self.biboumi.stop() @asyncio.coroutine def accept_routine(self): self.accepting_server = yield from self.loop.create_server(lambda: self, "127.0.0.1", "8811", reuse_address=True) def check_stanza_against_all_expected_xpaths(self): pass def check_xpath(xpaths, stanza): for xpath in xpaths: tree = lxml.etree.parse(io.StringIO(str(stanza))) matched = tree.xpath(xpath, namespaces={'re': 'http://exslt.org/regular-expressions', 'muc_user': 'http://jabber.org/protocol/muc#user'}) if not matched: raise StanzaError("Received stanza “%s” did not match expected xpath “%s”" % (stanza, xpath)) def check_xpath_optional(xpaths, stanza): try: check_xpath(xpaths, stanza) except StanzaError: raise SkipStepError() class Scenario: """Defines a list of actions that are executed in sequence, until one of them throws an exception, or until the end. An action can be something like “send a stanza”, “receive the next stanza and check that it matches the given XPath”, “send a signal”, “wait for the end of the process”, etc """ def __init__(self, name, steps, conf="basic"): """ Steps is a list of 2-tuple: [(action, answer), (action, answer)] """ self.name = name self.steps = [] self.conf = conf for elem in steps: if isinstance(elem, collections.Iterable): for step in elem: self.steps.append(step) else: self.steps.append(elem) class ProcessRunner: def __init__(self): self.process = None self.signal_sent = False @asyncio.coroutine def start(self): self.process = yield from self.create @asyncio.coroutine def wait(self): code = yield from self.process.wait() return code def stop(self): if not self.signal_sent: self.signal_sent = True if self.process: self.process.send_signal(signal.SIGINT) def __del__(self): self.stop() class BiboumiRunner(ProcessRunner): def __init__(self, name, with_valgrind): super().__init__() self.name = name self.fd = open("biboumi_%s_output.txt" % (name,), "w") if with_valgrind: self.create = asyncio.create_subprocess_exec("valgrind", "--leak-check=full", "--show-leak-kinds=all", "--errors-for-leak-kinds=all", "--error-exitcode=16", "./biboumi", "test.conf", stdin=None, stdout=self.fd, stderr=self.fd, loop=None, limit=None) else: self.create = asyncio.create_subprocess_exec("./biboumi", "test.conf", stdin=None, stdout=self.fd, stderr=self.fd, loop=None, limit=None) class IrcServerRunner(ProcessRunner): def __init__(self): super().__init__() self.create = asyncio.create_subprocess_exec("charybdis", "-foreground", "-configfile", os.getcwd() + "/../tests/end_to_end/ircd.conf", stderr=asyncio.subprocess.PIPE) def send_stanza(stanza, xmpp, biboumi): xmpp.send_raw(stanza.format_map(common_replacements)) asyncio.get_event_loop().call_soon(xmpp.run_scenario) def expect_stanza(xpaths, xmpp, biboumi, optional=False): check_func = check_xpath if not optional else check_xpath_optional if isinstance(xpaths, str): xmpp.stanza_checker = partial(check_func, [xpaths.format_map(common_replacements)]) elif isinstance(xpaths, tuple): xmpp.stanza_checker = partial(check_func, [xpath.format_map(common_replacements) for xpath in xpaths]) else: print("Warning, from argument type passed to expect_stanza: %s" % (type(xpaths))) class BiboumiTest: """ Spawns a biboumi process and a fake XMPP Component that will run a Scenario. It redirects the outputs of the subprocess into separated files, and detects any failure in the running of the scenario. """ def __init__(self, scenario, expected_code=0): self.scenario = scenario self.expected_code = 0 def run(self, with_valgrind=True): print("Running scenario: %s%s" % (self.scenario.name, " (with valgrind)" if with_valgrind else '')) # Redirect the slixmpp logging into a specific file output_filename = "slixmpp_%s_output.txt" % (self.scenario.name,) with open(output_filename, "w"): pass logging.basicConfig(level=logging.DEBUG, format='%(levelname)-8s %(message)s', filename=output_filename) with open("test.conf", "w") as fd: fd.write(confs[scenario.conf]) # Start the XMPP component and biboumi biboumi = BiboumiRunner(scenario.name, with_valgrind) xmpp = XMPPComponent(self.scenario, biboumi) asyncio.get_event_loop().run_until_complete(biboumi.start()) asyncio.get_event_loop().call_soon(xmpp.run_scenario) xmpp.process() code = asyncio.get_event_loop().run_until_complete(biboumi.wait()) failed = False if not xmpp.failed: if code != self.expected_code: xmpp.error("Wrong return code from biboumi's process: %d" % (code,)) failed = True else: print("Success!") else: failed = True if xmpp.server: xmpp.accepting_server.close() return not failed confs = { 'basic': """hostname=biboumi.localhost password=coucou db_name=biboumi.sqlite port=8811""", 'fixed_server': """hostname=biboumi.localhost password=coucou db_name=biboumi.sqlite port=8811 fixed_irc_server=irc.localhost """} common_replacements = { 'irc_server_one': 'irc.localhost@biboumi.localhost', 'irc_host_one': 'irc.localhost', 'biboumi_host': 'biboumi.localhost', 'resource_one': 'resource1', 'nick_one': 'Nick', 'jid_one': 'first@example.com', 'jid_two': 'second@example.com', 'nick_two': 'Bobby', } def handshake_sequence(): return (partial(expect_stanza, "//handshake"), partial(send_stanza, "")) def connection_sequence(irc_host, jid): jid = jid.format_map(common_replacements) xpath = "/message[@to='" + jid + "'][@from='irc.localhost@biboumi.localhost']/body[text()='%s']" xpath_re = "/message[@to='" + jid + "'][@from='irc.localhost@biboumi.localhost']/body[re:test(text(), '%s')]" return ( partial(expect_stanza, xpath % ('Connecting to %s:6697 (encrypted)' % irc_host)), partial(expect_stanza, xpath % 'Connection failed: Connection refused'), partial(expect_stanza, xpath % ('Connecting to %s:6670 (encrypted)' % irc_host)), partial(expect_stanza, xpath % 'Connection failed: Connection refused'), partial(expect_stanza, xpath % ('Connecting to %s:6667 (not encrypted)' % irc_host)), partial(expect_stanza, xpath % 'Connected to IRC server.'), # These two messages can be receive in any order partial(expect_stanza, xpath_re % (r'^%s: \*\*\* (Checking Ident|Looking up your hostname...)$' % irc_host)), partial(expect_stanza, xpath_re % (r'^%s: \*\*\* (Checking Ident|Looking up your hostname...)$' % irc_host)), # These three messages can be received in any order partial(expect_stanza, xpath_re % (r'^%s: (\*\*\* Found your hostname: .*|ACK multi-prefix|\*\*\* No Ident response)$' % irc_host)), partial(expect_stanza, xpath_re % (r'^%s: (\*\*\* Found your hostname: .*|ACK multi-prefix|\*\*\* No Ident response)$' % irc_host)), partial(expect_stanza, xpath_re % (r'^%s: (\*\*\* Found your hostname: .*|ACK multi-prefix|\*\*\* No Ident response)$' % irc_host)), partial(expect_stanza, xpath_re % (r'^%s: Your host is .*$' % irc_host)), partial(expect_stanza, xpath_re % (r'^%s: This server was created .*$' % irc_host)), partial(expect_stanza, xpath_re % (r'^%s: There are \d+ users and \d+ invisible on \d+ servers$' % irc_host)), partial(expect_stanza, xpath_re % (r'^%s: \d+ channels formed$' % irc_host), optional=True), partial(expect_stanza, xpath_re % (r'^%s: I have \d+ clients and \d+ servers$' % irc_host)), partial(expect_stanza, xpath_re % (r'^%s: \d+ \d+ Current local users \d+, max \d+$' % irc_host)), partial(expect_stanza, xpath_re % (r'^%s: \d+ \d+ Current global users \d+, max \d+$' % irc_host)), partial(expect_stanza, xpath_re % (r'^%s: Highest connection count: \d+ \(\d+ clients\) \(\d+ connections received\)$' % irc_host)), partial(expect_stanza, xpath % "- This is charybdis MOTD you might replace it, but if not your friends will\n- laugh at you.\n"), partial(expect_stanza, xpath_re % r'^User mode for \w+ is \[\+i\]$'), ) if __name__ == '__main__': atexit.register(asyncio.get_event_loop().close) # Start the test component, accepting connections on the configured # port. scenarios = ( Scenario("basic_handshake_success", [ handshake_sequence() ]), Scenario("irc_server_connection", [ handshake_sequence(), partial(send_stanza, ""), connection_sequence("irc.localhost", '{jid_one}/{resource_one}'), ]), Scenario("simple_channel_join", [ handshake_sequence(), partial(send_stanza, ""), connection_sequence("irc.localhost", '{jid_one}/{resource_one}'), partial(expect_stanza, "/message/body[text()='Mode #foo [+nt] by {irc_host_one}']"), partial(expect_stanza, ("/presence[@to='{jid_one}/{resource_one}'][@from='#foo%{irc_server_one}/{nick_one}']/muc_user:x/muc_user:item[@affiliation='admin'][@role='moderator']", "/presence/muc_user:x/muc_user:status[@code='110']") ), partial(expect_stanza, "/message[@from='#foo%{irc_server_one}'][@type='groupchat']/subject[not(text())]"), ]), Scenario("channel_join_with_two_users", [ handshake_sequence(), # First user joins partial(send_stanza, ""), connection_sequence("irc.localhost", '{jid_one}/{resource_one}'), partial(expect_stanza, "/message/body[text()='Mode #foo [+nt] by {irc_host_one}']"), partial(expect_stanza, ("/presence[@to='{jid_one}/{resource_one}'][@from='#foo%{irc_server_one}/{nick_one}']/muc_user:x/muc_user:item[@affiliation='admin'][@jid='~nick@localhost'][@role='moderator']", "/presence/muc_user:x/muc_user:status[@code='110']") ), partial(expect_stanza, "/message[@from='#foo%{irc_server_one}'][@type='groupchat']/subject[not(text())]"), # Second user joins partial(send_stanza, ""), connection_sequence("irc.localhost", '{jid_two}/{resource_one}'), # Our presence, sent to the other user partial(expect_stanza, ("/presence[@to='{jid_one}/{resource_one}'][@from='#foo%{irc_server_one}/{nick_two}']/muc_user:x/muc_user:item[@affiliation='none'][@jid='~bobby@localhost'][@role='participant']",)), # The other user presence partial(expect_stanza, "/presence[@to='{jid_second}/{resource_one}'][@from='#foo%{irc_server_one}/{nick_one}']/muc_user:x/muc_user:item[@affiliation='none'][@jid='~nick@localhost'][@role='participant']"), # Our own presence partial(expect_stanza, ("/presence[@to='{jid_two}/{resource_one}'][@from='#foo%{irc_server_one}/{nick_two}']/muc_user:x/muc_user:item[@affiliation='none'][@jid='~bobby@localhost'][@role='participant']", "/presence/muc_user:x/muc_user:status[@code='110']") ), partial(expect_stanza, "/message[@from='#foo%{irc_server_one}'][@type='groupchat']/subject[not(text())]"), ]), Scenario("channel_custom_topic", [ handshake_sequence(), # First user joins partial(send_stanza, ""), connection_sequence("irc.localhost", '{jid_one}/{resource_one}'), partial(expect_stanza, "/message/body[text()='Mode #foo [+nt] by {irc_host_one}']"), partial(expect_stanza, ("/presence[@to='{jid_one}/{resource_one}'][@from='#foo%{irc_server_one}/{nick_one}']/muc_user:x/muc_user:item[@affiliation='admin'][@jid='~nick@localhost'][@role='moderator']", "/presence/muc_user:x/muc_user:status[@code='110']") ), partial(expect_stanza, "/message[@from='#foo%{irc_server_one}'][@type='groupchat']/subject[not(text())]"), # First user sets the topic partial(send_stanza, "TOPIC TEST"), partial(expect_stanza, "/message[@from='#foo%{irc_server_one}/{nick_one}'][@type='groupchat'][@to='{jid_one}/{resource_one}']/subject[text()='TOPIC TEST']"), # Second user joins partial(send_stanza, ""), connection_sequence("irc.localhost", '{jid_two}/{resource_one}'), # Our presence, sent to the other user partial(expect_stanza, ("/presence[@to='{jid_one}/{resource_one}'][@from='#foo%{irc_server_one}/{nick_two}']/muc_user:x/muc_user:item[@affiliation='none'][@jid='~bobby@localhost'][@role='participant']",)), # The other user presence partial(expect_stanza, "/presence[@to='{jid_second}/{resource_one}'][@from='#foo%{irc_server_one}/{nick_one}']/muc_user:x/muc_user:item[@affiliation='admin'][@jid='~nick@localhost'][@role='moderator']"), # Our own presence partial(expect_stanza, ("/presence[@to='{jid_two}/{resource_one}'][@from='#foo%{irc_server_one}/{nick_two}']/muc_user:x/muc_user:item[@affiliation='none'][@jid='~bobby@localhost'][@role='participant']", "/presence/muc_user:x/muc_user:status[@code='110']") ), partial(expect_stanza, "/message[@from='#foo%{irc_server_one}/{nick_one}'][@type='groupchat']/subject[text()='TOPIC TEST']"), ]), Scenario("channel_basic_join_on_fixed_irc_server", [ handshake_sequence(), partial(send_stanza, ""), connection_sequence("irc.localhost", '{jid_one}/{resource_one}'), partial(expect_stanza, "/message/body[text()='Mode #zgeg [+nt] by {irc_host_one}']"), partial(expect_stanza, ("/presence[@to='{jid_one}/{resource_one}'][@from='#zgeg@{biboumi_host}/{nick_one}']/muc_user:x/muc_user:item[@affiliation='admin'][@role='moderator']", "/presence/muc_user:x/muc_user:status[@code='110']") ), partial(expect_stanza, "/message[@from='#zgeg@{biboumi_host}'][@type='groupchat']/subject[not(text())]"), ], conf='fixed_server' ), ) failures = 0 irc_output = open("irc_output.txt", "w") irc = IrcServerRunner() print("Starting irc server…") asyncio.get_event_loop().run_until_complete(irc.start()) while True: res = asyncio.get_event_loop().run_until_complete(irc.process.stderr.readline()) irc_output.write(res.decode()) if not res: print("IRC server failed to start, see irc_output.txt for more details. Exiting…") sys.exit(1) if b"now running in foreground mode" in res: break print("irc server started.") print("Running %s checks for biboumi." % (len(scenarios))) for scenario in scenarios: test = BiboumiTest(scenario) if not test.run(False): print("You can check the files slixmpp_%s_output.txt and biboumi_%s_output.txt to help you debug." % (scenario.name, scenario.name)) failures += 1 print("Waiting for irc server to exit…") irc.stop() code = asyncio.get_event_loop().run_until_complete(irc.wait()) if failures: print("%d test%s failed, please fix %s." % (failures, 's' if failures > 1 else '', 'them' if failures > 1 else 'it')) sys.exit(1) else: print("All tests passed successfully")