1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
|
# Copyright 2018 New Vector Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import re
from six import StringIO
from twisted.internet.defer import Deferred
from twisted.python.failure import Failure
from twisted.test.proto_helpers import AccumulatingProtocol
from twisted.web.resource import Resource
from twisted.web.server import NOT_DONE_YET
from synapse.api.errors import Codes, RedirectException, SynapseError
from synapse.http.server import (
DirectServeResource,
JsonResource,
wrap_html_request_handler,
)
from synapse.http.site import SynapseSite, logger
from synapse.logging.context import make_deferred_yieldable
from synapse.util import Clock
from tests import unittest
from tests.server import (
FakeTransport,
ThreadedMemoryReactorClock,
make_request,
render,
setup_test_homeserver,
)
class JsonResourceTests(unittest.TestCase):
def setUp(self):
self.reactor = ThreadedMemoryReactorClock()
self.hs_clock = Clock(self.reactor)
self.homeserver = setup_test_homeserver(
self.addCleanup, 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>[^/]*)$")],
_callback,
"test_servlet",
)
request, channel = make_request(
self.reactor, b"GET", b"/_matrix/foo/%E2%98%83?a=%E2%98%83"
)
render(request, res, self.reactor)
self.assertEqual(request.args, {b"a": ["\N{SNOWMAN}".encode("utf8")]})
self.assertEqual(got_kwargs, {"room_id": "\N{SNOWMAN}"})
def test_callback_direct_exception(self):
"""
If the web callback raises an uncaught exception, it will be translated
into a 500.
"""
def _callback(request, **kwargs):
raise Exception("boo")
res = JsonResource(self.homeserver)
res.register_paths(
"GET", [re.compile("^/_matrix/foo$")], _callback, "test_servlet"
)
request, channel = make_request(self.reactor, b"GET", b"/_matrix/foo")
render(request, res, self.reactor)
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 make_deferred_yieldable(d)
res = JsonResource(self.homeserver)
res.register_paths(
"GET", [re.compile("^/_matrix/foo$")], _callback, "test_servlet"
)
request, channel = make_request(self.reactor, b"GET", b"/_matrix/foo")
render(request, res, self.reactor)
self.assertEqual(channel.result["code"], b"500")
def test_callback_synapseerror(self):
"""
If the web callback raises a SynapseError, it returns the appropriate
status code and message set in it.
"""
def _callback(request, **kwargs):
raise SynapseError(403, "Forbidden!!one!", Codes.FORBIDDEN)
res = JsonResource(self.homeserver)
res.register_paths(
"GET", [re.compile("^/_matrix/foo$")], _callback, "test_servlet"
)
request, channel = make_request(self.reactor, b"GET", b"/_matrix/foo")
render(request, res, self.reactor)
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, "test_servlet"
)
request, channel = make_request(self.reactor, b"GET", b"/_matrix/foobar")
render(request, res, self.reactor)
self.assertEqual(channel.result["code"], b"400")
self.assertEqual(channel.json_body["error"], "Unrecognized request")
self.assertEqual(channel.json_body["errcode"], "M_UNRECOGNIZED")
class WrapHtmlRequestHandlerTests(unittest.TestCase):
class TestResource(DirectServeResource):
callback = None
@wrap_html_request_handler
async def _async_render_GET(self, request):
return await self.callback(request)
def setUp(self):
self.reactor = ThreadedMemoryReactorClock()
def test_good_response(self):
def callback(request):
request.write(b"response")
request.finish()
res = WrapHtmlRequestHandlerTests.TestResource()
res.callback = callback
request, channel = make_request(self.reactor, b"GET", b"/path")
render(request, res, self.reactor)
self.assertEqual(channel.result["code"], b"200")
body = channel.result["body"]
self.assertEqual(body, b"response")
def test_redirect_exception(self):
"""
If the callback raises a RedirectException, it is turned into a 30x
with the right location.
"""
def callback(request, **kwargs):
raise RedirectException(b"/look/an/eagle", 301)
res = WrapHtmlRequestHandlerTests.TestResource()
res.callback = callback
request, channel = make_request(self.reactor, b"GET", b"/path")
render(request, res, self.reactor)
self.assertEqual(channel.result["code"], b"301")
headers = channel.result["headers"]
location_headers = [v for k, v in headers if k == b"Location"]
self.assertEqual(location_headers, [b"/look/an/eagle"])
def test_redirect_exception_with_cookie(self):
"""
If the callback raises a RedirectException which sets a cookie, that is
returned too
"""
def callback(request, **kwargs):
e = RedirectException(b"/no/over/there", 304)
e.cookies.append(b"session=yespls")
raise e
res = WrapHtmlRequestHandlerTests.TestResource()
res.callback = callback
request, channel = make_request(self.reactor, b"GET", b"/path")
render(request, res, self.reactor)
self.assertEqual(channel.result["code"], b"304")
headers = channel.result["headers"]
location_headers = [v for k, v in headers if k == b"Location"]
self.assertEqual(location_headers, [b"/no/over/there"])
cookies_headers = [v for k, v in headers if k == b"Set-Cookie"]
self.assertEqual(cookies_headers, [b"session=yespls"])
class SiteTestCase(unittest.HomeserverTestCase):
def test_lose_connection(self):
"""
We log the URI correctly redacted when we lose the connection.
"""
class HangingResource(Resource):
"""
A Resource that strategically hangs, as if it were processing an
answer.
"""
def render(self, request):
return NOT_DONE_YET
# Set up a logging handler that we can inspect afterwards
output = StringIO()
handler = logging.StreamHandler(output)
logger.addHandler(handler)
old_level = logger.level
logger.setLevel(10)
self.addCleanup(logger.setLevel, old_level)
self.addCleanup(logger.removeHandler, handler)
# Make a resource and a Site, the resource will hang and allow us to
# time out the request while it's 'processing'
base_resource = Resource()
base_resource.putChild(b"", HangingResource())
site = SynapseSite("test", "site_tag", {}, base_resource, "1.0")
server = site.buildProtocol(None)
client = AccumulatingProtocol()
client.makeConnection(FakeTransport(server, self.reactor))
server.makeConnection(FakeTransport(client, self.reactor))
# Send a request with an access token that will get redacted
server.dataReceived(b"GET /?access_token=bar HTTP/1.0\r\n\r\n")
self.pump()
# Lose the connection
e = Failure(Exception("Failed123"))
server.connectionLost(e)
handler.flush()
# Our access token is redacted and the failure reason is logged.
self.assertIn("/?access_token=<redacted>", output.getvalue())
self.assertIn("Failed123", output.getvalue())
|
