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
|
# Copyright (C) 2009 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""Tests for smart server request infrastructure (bzrlib.smart.request)."""
import threading
from bzrlib import errors
from bzrlib.bzrdir import BzrDir
from bzrlib.smart import request
from bzrlib.tests import TestCase, TestCaseWithMemoryTransport
from bzrlib.transport import get_transport
class NoBodyRequest(request.SmartServerRequest):
"""A request that does not implement do_body."""
def do(self):
return request.SuccessfulSmartServerResponse(('ok',))
class DoErrorRequest(request.SmartServerRequest):
"""A request that raises an error from self.do()."""
def do(self):
raise errors.NoSuchFile('xyzzy')
class ChunkErrorRequest(request.SmartServerRequest):
"""A request that raises an error from self.do_chunk()."""
def do(self):
"""No-op."""
pass
def do_chunk(self, bytes):
raise errors.NoSuchFile('xyzzy')
class EndErrorRequest(request.SmartServerRequest):
"""A request that raises an error from self.do_end()."""
def do(self):
"""No-op."""
pass
def do_chunk(self, bytes):
"""No-op."""
pass
def do_end(self):
raise errors.NoSuchFile('xyzzy')
class CheckJailRequest(request.SmartServerRequest):
def __init__(self, *args):
request.SmartServerRequest.__init__(self, *args)
self.jail_transports_log = []
def do(self):
self.jail_transports_log.append(request.jail_info.transports)
def do_chunk(self, bytes):
self.jail_transports_log.append(request.jail_info.transports)
def do_end(self):
self.jail_transports_log.append(request.jail_info.transports)
class TestSmartRequest(TestCase):
def test_request_class_without_do_body(self):
"""If a request has no body data, and the request's implementation does
not override do_body, then no exception is raised.
"""
# Create a SmartServerRequestHandler with a SmartServerRequest subclass
# that does not implement do_body.
handler = request.SmartServerRequestHandler(
None, {'foo': NoBodyRequest}, '/')
# Emulate a request with no body (i.e. just args).
handler.args_received(('foo',))
handler.end_received()
# Request done, no exception was raised.
def test_only_request_code_is_jailed(self):
transport = 'dummy transport'
handler = request.SmartServerRequestHandler(
transport, {'foo': CheckJailRequest}, '/')
handler.args_received(('foo',))
self.assertEqual(None, request.jail_info.transports)
handler.accept_body('bytes')
self.assertEqual(None, request.jail_info.transports)
handler.end_received()
self.assertEqual(None, request.jail_info.transports)
self.assertEqual(
[[transport]] * 3, handler._command.jail_transports_log)
class TestSmartRequestHandlerErrorTranslation(TestCase):
"""Tests that SmartServerRequestHandler will translate exceptions raised by
a SmartServerRequest into FailedSmartServerResponses.
"""
def assertNoResponse(self, handler):
self.assertEqual(None, handler.response)
def assertResponseIsTranslatedError(self, handler):
expected_translation = ('NoSuchFile', 'xyzzy')
self.assertEqual(
request.FailedSmartServerResponse(expected_translation),
handler.response)
def test_error_translation_from_args_received(self):
handler = request.SmartServerRequestHandler(
None, {'foo': DoErrorRequest}, '/')
handler.args_received(('foo',))
self.assertResponseIsTranslatedError(handler)
def test_error_translation_from_chunk_received(self):
handler = request.SmartServerRequestHandler(
None, {'foo': ChunkErrorRequest}, '/')
handler.args_received(('foo',))
self.assertNoResponse(handler)
handler.accept_body('bytes')
self.assertResponseIsTranslatedError(handler)
def test_error_translation_from_end_received(self):
handler = request.SmartServerRequestHandler(
None, {'foo': EndErrorRequest}, '/')
handler.args_received(('foo',))
self.assertNoResponse(handler)
handler.end_received()
self.assertResponseIsTranslatedError(handler)
class TestRequestHanderErrorTranslation(TestCase):
"""Tests for bzrlib.smart.request._translate_error."""
def assertTranslationEqual(self, expected_tuple, error):
self.assertEqual(expected_tuple, request._translate_error(error))
def test_NoSuchFile(self):
self.assertTranslationEqual(
('NoSuchFile', 'path'), errors.NoSuchFile('path'))
def test_LockContention(self):
self.assertTranslationEqual(
('LockContention', 'lock', 'msg'),
errors.LockContention('lock', 'msg'))
def test_TokenMismatch(self):
self.assertTranslationEqual(
('TokenMismatch', 'some-token', 'actual-token'),
errors.TokenMismatch('some-token', 'actual-token'))
class TestRequestJail(TestCaseWithMemoryTransport):
def test_jail(self):
transport = self.get_transport('blah')
req = request.SmartServerRequest(transport)
self.assertEqual(None, request.jail_info.transports)
req.setup_jail()
self.assertEqual([transport], request.jail_info.transports)
req.teardown_jail()
self.assertEqual(None, request.jail_info.transports)
class TestJailHook(TestCaseWithMemoryTransport):
def tearDown(self):
request.jail_info.transports = None
TestCaseWithMemoryTransport.tearDown(self)
def test_jail_hook(self):
request.jail_info.transports = None
_pre_open_hook = request._pre_open_hook
# Any transport is fine if jail_info.transports is None
t = self.get_transport('foo')
_pre_open_hook(t)
# A transport in jail_info.transports is allowed
request.jail_info.transports = [t]
_pre_open_hook(t)
# A child of a transport in jail_info is allowed
_pre_open_hook(t.clone('child'))
# A parent is not allowed
self.assertRaises(errors.JailBreak, _pre_open_hook, t.clone('..'))
# A completely unrelated transport is not allowed
self.assertRaises(
errors.JailBreak, _pre_open_hook, get_transport('http://host/'))
def test_open_bzrdir_in_non_main_thread(self):
"""Opening a bzrdir in a non-main thread should work ok.
This makes sure that the globally-installed
bzrlib.smart.request._pre_open_hook, which uses a threading.local(),
works in a newly created thread.
"""
bzrdir = self.make_bzrdir('.')
transport = bzrdir.root_transport
thread_result = []
def t():
BzrDir.open_from_transport(transport)
thread_result.append('ok')
thread = threading.Thread(target=t)
thread.start()
thread.join()
self.assertEqual(['ok'], thread_result)
|