15
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18
"""Tests of the bzr serve command."""
18
"""Tests of the brz serve command."""
23
from _thread import interrupt_main
33
32
revision as _mod_revision,
36
from bzrlib.branch import Branch
37
from bzrlib.bzrdir import BzrDir
38
from bzrlib.smart import client, medium
39
from bzrlib.smart.server import BzrServerFactory, SmartTCPServer
40
from bzrlib.tests import (
37
from ...branch import Branch
38
from ...controldir import ControlDir
39
from ...bzr.smart import client, medium
40
from ...bzr.smart.server import (
41
45
TestCaseWithMemoryTransport,
42
46
TestCaseWithTransport,
45
from bzrlib.trace import mutter
46
from bzrlib.transport import get_transport, remote
48
from ...transport import remote
49
51
class TestBzrServeBase(TestCaseWithTransport):
51
53
def run_bzr_serve_then_func(self, serve_args, retcode=0, func=None,
52
54
*func_args, **func_kwargs):
53
"""Run 'bzr serve', and run the given func in a thread once the server
55
"""Run 'brz serve', and run the given func in a thread once the server
56
58
When 'func' terminates, the server will be terminated too.
58
60
Returns stdout and stderr.
61
def on_server_start(backing_urls, tcp_server):
63
target=on_server_start_thread, args=(tcp_server,))
65
62
def on_server_start_thread(tcp_server):
63
"""This runs concurrently with the server thread.
65
The server is interrupted as soon as ``func`` finishes, even if an
66
exception is encountered.
68
70
self.tcp_server = tcp_server
71
73
func(*func_args, **func_kwargs)
74
except Exception as e:
73
75
# Log errors to make some test failures a little less
75
mutter('func broke: %r', e)
77
trace.mutter('func broke: %r', e)
77
79
# Then stop the server
78
mutter('interrupting...')
79
thread.interrupt_main()
80
trace.mutter('interrupting...')
82
# When the hook is fired, it just starts ``on_server_start_thread`` and
85
def on_server_start(backing_urls, tcp_server):
87
target=on_server_start_thread, args=(tcp_server,))
80
90
SmartTCPServer.hooks.install_named_hook(
81
91
'server_started_ex', on_server_start,
82
92
'run_bzr_serve_then_func hook')
93
# It seems interrupt_main() will not raise KeyboardInterrupt
94
# until after socket.accept returns. So we set the timeout low to make
96
self.overrideAttr(SmartTCPServer, '_ACCEPT_TIMEOUT', 0.1)
83
97
# start a TCP server
85
out, err = self.run_bzr(['serve'] + list(serve_args))
86
except KeyboardInterrupt, e:
99
out, err = self.run_bzr(['serve'] + list(serve_args),
101
except KeyboardInterrupt as e:
102
return (self._last_cmd_stdout.getvalue(),
103
self._last_cmd_stderr.getvalue())
94
110
super(TestBzrServe, self).setUp()
95
111
self.disable_missing_extensions_warning()
113
def test_server_exception_with_hook(self):
114
"""Catch exception from the server in the server_exception hook.
116
We use ``run_bzr_serve_then_func`` without a ``func`` so the server
117
will receive a KeyboardInterrupt exception we want to catch.
120
if exception[0] is KeyboardInterrupt:
121
sys.stderr.write(b'catching KeyboardInterrupt\n')
125
SmartTCPServer.hooks.install_named_hook(
126
'server_exception', hook,
127
'test_server_except_hook hook')
128
args = ['--listen', 'localhost', '--port', '0', '--quiet']
129
out, err = self.run_bzr_serve_then_func(args, retcode=0)
130
self.assertEqual('catching KeyboardInterrupt\n', err)
132
def test_server_exception_no_hook(self):
133
"""test exception without hook returns error"""
135
out, err = self.run_bzr_serve_then_func(args, retcode=3)
97
137
def assertInetServerShutsdownCleanly(self, process):
98
138
"""Shutdown the server process looking for errors."""
99
139
# Shutdown the server: the server should shut down when it cannot read
102
142
# Hide stdin from the subprocess module, so it won't fail to close it.
103
143
process.stdin = None
104
144
result = self.finish_bzr_subprocess(process)
105
self.assertEqual('', result[0])
106
self.assertEqual('', result[1])
145
self.assertEqual(b'', result[0])
146
self.assertEqual(b'', result[1])
108
148
def assertServerFinishesCleanly(self, process):
109
"""Shutdown the bzr serve instance process looking for errors."""
149
"""Shutdown the brz serve instance process looking for errors."""
110
150
# Shutdown the server
111
151
result = self.finish_bzr_subprocess(process, retcode=3,
112
152
send_signal=signal.SIGINT)
113
self.assertEqual('', result[0])
114
self.assertEqual('bzr: interrupted\n', result[1])
153
self.assertEqual(b'', result[0])
154
self.assertEqual(b'brz: interrupted\n', result[1])
116
156
def make_read_requests(self, branch):
117
157
"""Do some read only requests."""
158
with branch.lock_read():
120
159
branch.repository.all_revision_ids()
121
160
self.assertEqual(_mod_revision.NULL_REVISION,
122
161
_mod_revision.ensure_null(branch.last_revision()))
126
163
def start_server_inet(self, extra_options=()):
127
"""Start a bzr server subprocess using the --inet option.
164
"""Start a brz server subprocess using the --inet option.
129
166
:param extra_options: extra options to give the server.
130
:return: a tuple with the bzr process handle for passing to
167
:return: a tuple with the brz process handle for passing to
131
168
finish_bzr_subprocess, a client for the server, and a transport.
133
170
# Serve from the current directory
146
183
return process, transport
148
185
def start_server_port(self, extra_options=()):
149
"""Start a bzr server subprocess.
186
"""Start a brz server subprocess.
151
188
:param extra_options: extra options to give the server.
152
:return: a tuple with the bzr process handle for passing to
189
:return: a tuple with the brz process handle for passing to
153
190
finish_bzr_subprocess, and the base url for the server.
155
192
# Serve from the current directory
156
args = ['serve', '--port', 'localhost:0']
193
args = ['serve', '--listen', 'localhost', '--port', '0']
157
194
args.extend(extra_options)
158
195
process = self.start_bzr_subprocess(args, skip_if_plan_to_signal=True)
159
196
port_line = process.stderr.readline()
160
prefix = 'listening on port: '
197
prefix = b'listening on port: '
161
198
self.assertStartsWith(port_line, prefix)
162
199
port = int(port_line[len(prefix):])
163
200
url = 'bzr://localhost:%d/' % port
164
201
self.permit_url(url)
165
202
return process, url
167
204
def test_bzr_serve_quiet(self):
168
205
self.make_branch('.')
169
args = ['--port', 'localhost:0', '--quiet']
206
args = ['--listen', 'localhost', '--port', '0', '--quiet']
170
207
out, err = self.run_bzr_serve_then_func(args, retcode=3)
171
208
self.assertEqual('', out)
172
209
self.assertEqual('', err)
174
211
def test_bzr_serve_inet_readonly(self):
175
"""bzr server should provide a read only filesystem by default."""
212
"""brz server should provide a read only filesystem by default."""
176
213
process, transport = self.start_server_inet()
177
214
self.assertRaises(errors.TransportNotPossible, transport.mkdir, 'adir')
178
215
self.assertInetServerShutsdownCleanly(process)
184
221
process, transport = self.start_server_inet(['--allow-writes'])
186
223
# We get a working branch, and can create a directory
187
branch = BzrDir.open_from_transport(transport).open_branch()
224
branch = ControlDir.open_from_transport(transport).open_branch()
188
225
self.make_read_requests(branch)
189
226
transport.mkdir('adir')
190
227
self.assertInetServerShutsdownCleanly(process)
192
229
def test_bzr_serve_port_readonly(self):
193
"""bzr server should provide a read only filesystem by default."""
230
"""brz server should provide a read only filesystem by default."""
194
231
process, url = self.start_server_port()
195
transport = get_transport(url)
196
self.assertRaises(errors.TransportNotPossible, transport.mkdir, 'adir')
232
t = transport.get_transport_from_url(url)
233
self.assertRaises(errors.TransportNotPossible, t.mkdir, 'adir')
197
234
self.assertServerFinishesCleanly(process)
199
236
def test_bzr_serve_port_readwrite(self):
223
260
# This is a smoke test that the server doesn't crash when run with
224
261
# -Dhpss, and does drop some hpss logging to the file.
225
262
self.make_branch('.')
226
log_fname = os.getcwd() + '/server.log'
227
self._captureVar('BZR_LOG', log_fname)
263
log_fname = self.test_dir + '/server.log'
264
self.overrideEnv('BRZ_LOG', log_fname)
228
265
process, transport = self.start_server_inet(['-Dhpss'])
229
branch = BzrDir.open_from_transport(transport).open_branch()
266
branch = ControlDir.open_from_transport(transport).open_branch()
230
267
self.make_read_requests(branch)
231
268
self.assertInetServerShutsdownCleanly(process)
232
269
f = open(log_fname, 'rb')
233
270
content = f.read()
235
self.assertContainsRe(content, r'hpss request: \[[0-9-]+\]')
272
self.assertContainsRe(content, br'hpss request: \[[0-9-]+\]')
274
def test_bzr_serve_supports_configurable_timeout(self):
275
gs = config.GlobalStack()
276
gs.set('serve.client_timeout', 0.2)
277
# Save the config as the subprocess will use it
279
process, url = self.start_server_port()
280
self.build_tree_contents([('a_file', b'contents\n')])
281
# We can connect and issue a request
282
t = transport.get_transport_from_url(url)
283
self.assertEqual(b'contents\n', t.get_bytes('a_file'))
284
# However, if we just wait for more content from the server, it will
285
# eventually disconnect us.
286
m = t.get_smart_medium()
288
# Now, we wait for timeout to trigger
289
err = process.stderr.readline()
291
b'Connection Timeout: disconnecting client after 0.2 seconds\n',
293
self.assertServerFinishesCleanly(process)
295
def test_bzr_serve_supports_client_timeout(self):
296
process, url = self.start_server_port(['--client-timeout=0.1'])
297
self.build_tree_contents([('a_file', b'contents\n')])
298
# We can connect and issue a request
299
t = transport.get_transport_from_url(url)
300
self.assertEqual(b'contents\n', t.get_bytes('a_file'))
301
# However, if we just wait for more content from the server, it will
302
# eventually disconnect us.
303
# TODO: Use something like signal.alarm() so that if the server doesn't
304
# properly handle the timeout, we end up failing the test instead
305
# of hanging forever.
306
m = t.get_smart_medium()
308
# Now, we wait for timeout to trigger
309
err = process.stderr.readline()
311
b'Connection Timeout: disconnecting client after 0.1 seconds\n',
313
self.assertServerFinishesCleanly(process)
315
def test_bzr_serve_graceful_shutdown(self):
316
big_contents = b'a' * 64 * 1024
317
self.build_tree_contents([('bigfile', big_contents)])
318
process, url = self.start_server_port(['--client-timeout=1.0'])
319
t = transport.get_transport_from_url(url)
320
m = t.get_smart_medium()
321
c = client._SmartClient(m)
322
# Start, but don't finish a response
323
resp, response_handler = c.call_expecting_body(b'get', b'bigfile')
324
self.assertEqual((b'ok',), resp)
325
# Note: process.send_signal is a Python 2.6ism
326
process.send_signal(signal.SIGHUP)
327
# Wait for the server to notice the signal, and then read the actual
328
# body of the response. That way we know that it is waiting for the
330
self.assertEqual(b'Requested to stop gracefully\n',
331
process.stderr.readline())
332
self.assertIn(process.stderr.readline(),
333
(b'', b'Waiting for 1 client(s) to finish\n'))
334
body = response_handler.read_body_bytes()
335
if body != big_contents:
336
self.fail('Failed to properly read the contents of "bigfile"')
337
# Now that our request is finished, the medium should notice it has
339
self.assertEqual(b'', m.read_bytes(1))
340
# And the server should be stopping
341
self.assertEqual(0, process.wait())
238
344
class TestCmdServeChrooting(TestBzrServeBase):
240
346
def test_serve_tcp(self):
241
"""'bzr serve' wraps the given --directory in a ChrootServer.
347
"""'brz serve' wraps the given --directory in a ChrootServer.
243
349
So requests that search up through the parent directories (like
244
350
find_repositoryV3) will give "not found" responses, rather than
247
353
t = self.get_transport()
248
354
t.mkdir('server-root')
249
355
self.run_bzr_serve_then_func(
250
['--port', '127.0.0.1:0',
356
['--listen', '127.0.0.1', '--port', '0',
251
357
'--directory', t.local_abspath('server-root'),
252
358
'--allow-writes'],
253
359
func=self.when_server_started)
254
360
# The when_server_started method issued a find_repositoryV3 that should
255
361
# fail with 'norepository' because there are no repositories inside the
257
self.assertEqual(('norepository',), self.client_resp)
363
self.assertEqual((b'norepository',), self.client_resp)
259
365
def when_server_started(self):
260
366
# Connect to the TCP server and issue some requests and see what comes
328
438
base_dir, server_maker.get_base_path(self.bzr_serve_transport))
330
440
cmd.run(directory=base_dir, protocol=capture_transport,
332
442
server_maker = BzrServerFactory()
333
443
self.assertEqual(base_url, self.bzr_serve_transport.base)
334
444
self.assertEqual(base_dir,
335
server_maker.get_base_path(self.bzr_serve_transport))
445
server_maker.get_base_path(self.bzr_serve_transport))
446
# Read-only, from a URL
447
cmd.run(directory=base_url, protocol=capture_transport)
448
server_maker = BzrServerFactory()
450
'readonly+%s' % base_url, self.bzr_serve_transport.base)
452
base_dir, server_maker.get_base_path(self.bzr_serve_transport))