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")