def verify(assertion, audience=None):
"""Verify the given BrowserID assertion.
This function uses the "best" verification method available in order to
verify the given BrowserID assertion and return a dict of user data. The
best method currently involves POSTing to the hosted verifier service on
persona.org; eventually it will do local verification.
"""
global _DEFAULT_VERIFIER
if _DEFAULT_VERIFIER is None:
_DEFAULT_VERIFIER = LocalVerifier()
return _DEFAULT_VERIFIER.verify(assertion, audience)
def verify(assertion, audience=None):
"""Verify the given BrowserID assertion.
This function uses the "best" verification method available in order to
verify the given BrowserID assertion and return a dict of user data. The
best method currently involves POSTing to the hosted verifier service on
persona.org; eventually it will do local verification.
"""
global _DEFAULT_VERIFIER
if _DEFAULT_VERIFIER is None:
_DEFAULT_VERIFIER = LocalVerifier()
return _DEFAULT_VERIFIER.verify(assertion, audience)
class LocalVerifier(object):
"""
Verifies BrowserID assertions locally instead of using the remote
verification service.
"""
def __init__(self, *args, **kwargs):
super(LocalVerifier, self).__init__(*args, **kwargs)
self.pybid_verifier = PyBrowserIDLocalVerifier()
def verify(self, assertion, audience, **kwargs):
"""
Verify an assertion locally.
:param assertion:
BrowserID assertion to verify.
:param audience:
The protocol, hostname and port of your website. Used to confirm that the assertion was
meant for your site and not for another site.
:returns:
:class:`.VerificationResult`
"""
try:
result = self.pybid_verifier.verify(assertion, audience)
except PyBrowserIDError as error:
return VerificationResult({
'status': 'failure',
'reason': error
})
return VerificationResult(result)
class LocalVerifier(object):
"""
Verifies BrowserID assertions locally instead of using the remote
verification service.
"""
def __init__(self, *args, **kwargs):
super(LocalVerifier, self).__init__(*args, **kwargs)
self.pybid_verifier = PyBrowserIDLocalVerifier()
def verify(self, assertion, audience, **kwargs):
"""
Verify an assertion locally.
:param assertion:
BrowserID assertion to verify.
:param audience:
The protocol, hostname and port of your website. Used to confirm that the assertion was
meant for your site and not for another site.
:returns:
:class:`.VerificationResult`
"""
try:
result = self.pybid_verifier.verify(assertion, audience)
except PyBrowserIDError as error:
return VerificationResult({
'status': 'failure',
'reason': error
})
return VerificationResult(result)
def __init__(self, num_procs=None, verifier=None):
# Try to choose a sensible number of processes by default.
if num_procs is None:
try:
num_procs = multiprocessing.cpu_count()
except NotImplementedError:
num_procs = 2
# Use LocalVerifier by default, but allow overriding.
if verifier is None:
verifier = LocalVerifier()
self.num_procs = num_procs
self.verifier = verifier
# Create the various communication channels.
# Yes, this duplicates a lot of the logic from multprocessing.Pool.
# I don't want to have to constantly pickle the verifier object
# to send it into the subprocesses, and the Pool class doesn't lend
# itself to subclases in a way that would avoid this. So here we are.
# We have:
# 1) a queue from which the workers read jobs
self._work_queue = multiprocessing.Queue()
# 2) a queue into which the workers push results
self._result_queue = multiprocessing.Queue()
# 3) a thread that dispatches results to other waiting threads,
# by signalling on a condition object.
self._lock = threading.Lock()
self._waiting_conds = {}
self._spare_conds = []
# Now we can start the required processes and threads.
self._result_thread = threading.Thread(target=self._run_result_thread)
self._result_thread.start()
self._processes = []
for n in xrange(num_procs):
proc = multiprocessing.Process(target=self._run_worker)
self._processes.append(proc)
proc.start()
def __init__(self, *args, **kwargs):
super(LocalVerifier, self).__init__(*args, **kwargs)
self.pybid_verifier = PyBrowserIDLocalVerifier()
def __init__(self, *args, **kwargs):
super(LocalVerifier, self).__init__(*args, **kwargs)
self.pybid_verifier = PyBrowserIDLocalVerifier()
