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import re
from twisted.internet.defer import Deferred
from twisted.test.proto_helpers import MemoryReactorClock
from synapse.api.errors import Codes, SynapseError
from synapse.http.server import JsonResource
from synapse.util import Clock
from tests import unittest
from tests.server import make_request, setup_test_homeserver
class JsonResourceTests(unittest.TestCase):
def setUp(self):
self.reactor = MemoryReactorClock()
self.hs_clock = Clock(self.reactor)
self.homeserver = setup_test_homeserver(
http_client=None, clock=self.hs_clock, reactor=self.reactor
)
def test_handler_for_request(self):
"""
JsonResource.handler_for_request gives correctly decoded URL args to
the callback, while Twisted will give the raw bytes of URL query
arguments.
"""
got_kwargs = {}
def _callback(request, **kwargs):
got_kwargs.update(kwargs)
return (200, kwargs)
res = JsonResource(self.homeserver)
res.register_paths(
"GET", [re.compile("^/_matrix/foo/(?P<room_id>[^/]*)$")], _callback
)
request, channel = make_request(b"GET", b"/_matrix/foo/%E2%98%83?a=%E2%98%83")
request.render(res)
self.assertEqual(request.args, {b'a': [u"\N{SNOWMAN}".encode('utf8')]})
self.assertEqual(got_kwargs, {u"room_id": u"\N{SNOWMAN}"})
def test_callback_direct_exception(self):
"""
If the web callback raises an uncaught exception, it will be translated
into a 500.
"""
def _callback(request, **kwargs):
raise Exception("boo")
res = JsonResource(self.homeserver)
res.register_paths("GET", [re.compile("^/_matrix/foo$")], _callback)
request, channel = make_request(b"GET", b"/_matrix/foo")
request.render(res)
self.assertEqual(channel.result["code"], b'500')
def test_callback_indirect_exception(self):
"""
If the web callback raises an uncaught exception in a Deferred, it will
be translated into a 500.
"""
def _throw(*args):
raise Exception("boo")
def _callback(request, **kwargs):
d = Deferred()
d.addCallback(_throw)
self.reactor.callLater(1, d.callback, True)
return d
res = JsonResource(self.homeserver)
res.register_paths("GET", [re.compile("^/_matrix/foo$")], _callback)
request, channel = make_request(b"GET", b"/_matrix/foo")
request.render(res)
# No error has been raised yet
self.assertTrue("code" not in channel.result)
# Advance time, now there's an error
self.reactor.advance(1)
self.assertEqual(channel.result["code"], b'500')
def test_callback_synapseerror(self):
"""
If the web callback raises a SynapseError, it returns the appropriate
status code and message set in it.
"""
def _callback(request, **kwargs):
raise SynapseError(403, "Forbidden!!one!", Codes.FORBIDDEN)
res = JsonResource(self.homeserver)
res.register_paths("GET", [re.compile("^/_matrix/foo$")], _callback)
request, channel = make_request(b"GET", b"/_matrix/foo")
request.render(res)
self.assertEqual(channel.result["code"], b'403')
self.assertEqual(channel.json_body["error"], "Forbidden!!one!")
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
def test_no_handler(self):
"""
If there is no handler to process the request, Synapse will return 400.
"""
def _callback(request, **kwargs):
"""
Not ever actually called!
"""
self.fail("shouldn't ever get here")
res = JsonResource(self.homeserver)
res.register_paths("GET", [re.compile("^/_matrix/foo$")], _callback)
request, channel = make_request(b"GET", b"/_matrix/foobar")
request.render(res)
self.assertEqual(channel.result["code"], b'400')
self.assertEqual(channel.json_body["error"], "Unrecognized request")
self.assertEqual(channel.json_body["errcode"], "M_UNRECOGNIZED")
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