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."""
33
31
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 (
36
from ...branch import Branch
37
from ...controldir import ControlDir
38
from ...bzr.smart import client, medium
39
from ...bzr.smart.server import (
41
44
TestCaseWithMemoryTransport,
42
45
TestCaseWithTransport,
45
from bzrlib.trace import mutter
46
from bzrlib.transport import get_transport, remote
47
from ...transport import remote
49
50
class TestBzrServeBase(TestCaseWithTransport):
51
52
def run_bzr_serve_then_func(self, serve_args, retcode=0, func=None,
52
53
*func_args, **func_kwargs):
53
"""Run 'bzr serve', and run the given func in a thread once the server
54
"""Run 'brz serve', and run the given func in a thread once the server
56
57
When 'func' terminates, the server will be terminated too.
58
59
Returns stdout and stderr.
61
def on_server_start(backing_urls, tcp_server):
63
target=on_server_start_thread, args=(tcp_server,))
65
61
def on_server_start_thread(tcp_server):
62
"""This runs concurrently with the server thread.
64
The server is interrupted as soon as ``func`` finishes, even if an
65
exception is encountered.
68
69
self.tcp_server = tcp_server
71
72
func(*func_args, **func_kwargs)
73
except Exception as e:
73
74
# Log errors to make some test failures a little less
75
mutter('func broke: %r', e)
76
trace.mutter('func broke: %r', e)
77
78
# Then stop the server
78
mutter('interrupting...')
79
trace.mutter('interrupting...')
79
80
thread.interrupt_main()
81
# When the hook is fired, it just starts ``on_server_start_thread`` and
83
def on_server_start(backing_urls, tcp_server):
85
target=on_server_start_thread, args=(tcp_server,))
80
88
SmartTCPServer.hooks.install_named_hook(
81
89
'server_started_ex', on_server_start,
82
90
'run_bzr_serve_then_func hook')
91
# It seesm thread.interrupt_main() will not raise KeyboardInterrupt
92
# until after socket.accept returns. So we set the timeout low to make
94
self.overrideAttr(SmartTCPServer, '_ACCEPT_TIMEOUT', 0.1)
83
95
# start a TCP server
85
out, err = self.run_bzr(['serve'] + list(serve_args))
86
except KeyboardInterrupt, e:
97
out, err = self.run_bzr(['serve'] + list(serve_args),
99
except KeyboardInterrupt as e:
100
return (self._last_cmd_stdout.getvalue(),
101
self._last_cmd_stderr.getvalue())
94
108
super(TestBzrServe, self).setUp()
95
109
self.disable_missing_extensions_warning()
111
def test_server_exception_with_hook(self):
112
"""Catch exception from the server in the server_exception hook.
114
We use ``run_bzr_serve_then_func`` without a ``func`` so the server
115
will receive a KeyboardInterrupt exception we want to catch.
118
if exception[0] is KeyboardInterrupt:
119
sys.stderr.write('catching KeyboardInterrupt\n')
123
SmartTCPServer.hooks.install_named_hook(
124
'server_exception', hook,
125
'test_server_except_hook hook')
126
args = ['--listen', 'localhost', '--port', '0', '--quiet']
127
out, err = self.run_bzr_serve_then_func(args, retcode=0)
128
self.assertEqual('catching KeyboardInterrupt\n', err)
130
def test_server_exception_no_hook(self):
131
"""test exception without hook returns error"""
133
out, err = self.run_bzr_serve_then_func(args, retcode=3)
97
135
def assertInetServerShutsdownCleanly(self, process):
98
136
"""Shutdown the server process looking for errors."""
99
137
# Shutdown the server: the server should shut down when it cannot read
106
144
self.assertEqual('', result[1])
108
146
def assertServerFinishesCleanly(self, process):
109
"""Shutdown the bzr serve instance process looking for errors."""
147
"""Shutdown the brz serve instance process looking for errors."""
110
148
# Shutdown the server
111
149
result = self.finish_bzr_subprocess(process, retcode=3,
112
150
send_signal=signal.SIGINT)
113
151
self.assertEqual('', result[0])
114
self.assertEqual('bzr: interrupted\n', result[1])
152
self.assertEqual('brz: interrupted\n', result[1])
116
154
def make_read_requests(self, branch):
117
155
"""Do some read only requests."""
156
with branch.lock_read():
120
157
branch.repository.all_revision_ids()
121
158
self.assertEqual(_mod_revision.NULL_REVISION,
122
159
_mod_revision.ensure_null(branch.last_revision()))
126
161
def start_server_inet(self, extra_options=()):
127
"""Start a bzr server subprocess using the --inet option.
162
"""Start a brz server subprocess using the --inet option.
129
164
:param extra_options: extra options to give the server.
130
:return: a tuple with the bzr process handle for passing to
165
:return: a tuple with the brz process handle for passing to
131
166
finish_bzr_subprocess, a client for the server, and a transport.
133
168
# Serve from the current directory
146
181
return process, transport
148
183
def start_server_port(self, extra_options=()):
149
"""Start a bzr server subprocess.
184
"""Start a brz server subprocess.
151
186
:param extra_options: extra options to give the server.
152
:return: a tuple with the bzr process handle for passing to
187
:return: a tuple with the brz process handle for passing to
153
188
finish_bzr_subprocess, and the base url for the server.
155
190
# Serve from the current directory
156
args = ['serve', '--port', 'localhost:0']
191
args = ['serve', '--listen', 'localhost', '--port', '0']
157
192
args.extend(extra_options)
158
193
process = self.start_bzr_subprocess(args, skip_if_plan_to_signal=True)
159
194
port_line = process.stderr.readline()
163
198
url = 'bzr://localhost:%d/' % port
164
199
self.permit_url(url)
165
200
return process, url
167
202
def test_bzr_serve_quiet(self):
168
203
self.make_branch('.')
169
args = ['--port', 'localhost:0', '--quiet']
204
args = ['--listen', 'localhost', '--port', '0', '--quiet']
170
205
out, err = self.run_bzr_serve_then_func(args, retcode=3)
171
206
self.assertEqual('', out)
172
207
self.assertEqual('', err)
174
209
def test_bzr_serve_inet_readonly(self):
175
"""bzr server should provide a read only filesystem by default."""
210
"""brz server should provide a read only filesystem by default."""
176
211
process, transport = self.start_server_inet()
177
212
self.assertRaises(errors.TransportNotPossible, transport.mkdir, 'adir')
178
213
self.assertInetServerShutsdownCleanly(process)
184
219
process, transport = self.start_server_inet(['--allow-writes'])
186
221
# We get a working branch, and can create a directory
187
branch = BzrDir.open_from_transport(transport).open_branch()
222
branch = ControlDir.open_from_transport(transport).open_branch()
188
223
self.make_read_requests(branch)
189
224
transport.mkdir('adir')
190
225
self.assertInetServerShutsdownCleanly(process)
192
227
def test_bzr_serve_port_readonly(self):
193
"""bzr server should provide a read only filesystem by default."""
228
"""brz server should provide a read only filesystem by default."""
194
229
process, url = self.start_server_port()
195
transport = get_transport(url)
196
self.assertRaises(errors.TransportNotPossible, transport.mkdir, 'adir')
230
t = transport.get_transport_from_url(url)
231
self.assertRaises(errors.TransportNotPossible, t.mkdir, 'adir')
197
232
self.assertServerFinishesCleanly(process)
199
234
def test_bzr_serve_port_readwrite(self):
223
258
# This is a smoke test that the server doesn't crash when run with
224
259
# -Dhpss, and does drop some hpss logging to the file.
225
260
self.make_branch('.')
226
log_fname = os.getcwd() + '/server.log'
227
self._captureVar('BZR_LOG', log_fname)
261
log_fname = self.test_dir + '/server.log'
262
self.overrideEnv('BRZ_LOG', log_fname)
228
263
process, transport = self.start_server_inet(['-Dhpss'])
229
branch = BzrDir.open_from_transport(transport).open_branch()
264
branch = ControlDir.open_from_transport(transport).open_branch()
230
265
self.make_read_requests(branch)
231
266
self.assertInetServerShutsdownCleanly(process)
232
267
f = open(log_fname, 'rb')
235
270
self.assertContainsRe(content, r'hpss request: \[[0-9-]+\]')
272
def test_bzr_serve_supports_configurable_timeout(self):
273
gs = config.GlobalStack()
274
gs.set('serve.client_timeout', 0.2)
275
# Save the config as the subprocess will use it
277
process, url = self.start_server_port()
278
self.build_tree_contents([('a_file', b'contents\n')])
279
# We can connect and issue a request
280
t = transport.get_transport_from_url(url)
281
self.assertEqual('contents\n', t.get_bytes('a_file'))
282
# However, if we just wait for more content from the server, it will
283
# eventually disconnect us.
284
m = t.get_smart_medium()
286
# Now, we wait for timeout to trigger
287
err = process.stderr.readline()
289
'Connection Timeout: disconnecting client after 0.2 seconds\n',
291
self.assertServerFinishesCleanly(process)
293
def test_bzr_serve_supports_client_timeout(self):
294
process, url = self.start_server_port(['--client-timeout=0.1'])
295
self.build_tree_contents([('a_file', b'contents\n')])
296
# We can connect and issue a request
297
t = transport.get_transport_from_url(url)
298
self.assertEqual('contents\n', t.get_bytes('a_file'))
299
# However, if we just wait for more content from the server, it will
300
# eventually disconnect us.
301
# TODO: Use something like signal.alarm() so that if the server doesn't
302
# properly handle the timeout, we end up failing the test instead
303
# of hanging forever.
304
m = t.get_smart_medium()
306
# Now, we wait for timeout to trigger
307
err = process.stderr.readline()
309
'Connection Timeout: disconnecting client after 0.1 seconds\n',
311
self.assertServerFinishesCleanly(process)
313
def test_bzr_serve_graceful_shutdown(self):
314
big_contents = b'a'*64*1024
315
self.build_tree_contents([('bigfile', big_contents)])
316
process, url = self.start_server_port(['--client-timeout=1.0'])
317
t = transport.get_transport_from_url(url)
318
m = t.get_smart_medium()
319
c = client._SmartClient(m)
320
# Start, but don't finish a response
321
resp, response_handler = c.call_expecting_body('get', 'bigfile')
322
self.assertEqual(('ok',), resp)
323
# Note: process.send_signal is a Python 2.6ism
324
process.send_signal(signal.SIGHUP)
325
# Wait for the server to notice the signal, and then read the actual
326
# body of the response. That way we know that it is waiting for the
328
self.assertEqual('Requested to stop gracefully\n',
329
process.stderr.readline())
330
self.assertEqual('Waiting for 1 client(s) to finish\n',
331
process.stderr.readline())
332
body = response_handler.read_body_bytes()
333
if body != big_contents:
334
self.fail('Failed to properly read the contents of "bigfile"')
335
# Now that our request is finished, the medium should notice it has
337
self.assertEqual('', m.read_bytes(1))
338
# And the server should be stopping
339
self.assertEqual(0, process.wait())
238
342
class TestCmdServeChrooting(TestBzrServeBase):
240
344
def test_serve_tcp(self):
241
"""'bzr serve' wraps the given --directory in a ChrootServer.
345
"""'brz serve' wraps the given --directory in a ChrootServer.
243
347
So requests that search up through the parent directories (like
244
348
find_repositoryV3) will give "not found" responses, rather than
293
398
bzr_server = BzrServerFactory(
294
399
self.fake_expanduser, lambda t: base_path)
295
400
mem_transport = self.get_transport()
296
mem_transport.mkdir_multi(['home', 'home/user'])
297
bzr_server.set_up(mem_transport, None, None, inet=True)
401
mem_transport.mkdir('home')
402
mem_transport.mkdir('home/user')
403
bzr_server.set_up(mem_transport, None, None, inet=True, timeout=4.0)
298
404
self.addCleanup(bzr_server.tear_down)
299
405
return bzr_server