53
71
from socket import error as socket_error
54
72
self._socket_error = socket_error
55
73
self._socket_timeout = socket_timeout
56
self._server_socket = socket.socket()
57
self._server_socket.bind((host, port))
74
addrs = socket.getaddrinfo(host, port, socket.AF_UNSPEC,
75
socket.SOCK_STREAM, 0, socket.AI_PASSIVE)[0]
77
(family, socktype, proto, canonname, sockaddr) = addrs
79
self._server_socket = socket.socket(family, socktype, proto)
80
# SO_REUSERADDR has a different meaning on Windows
81
if sys.platform != 'win32':
82
self._server_socket.setsockopt(socket.SOL_SOCKET,
83
socket.SO_REUSEADDR, 1)
85
self._server_socket.bind(sockaddr)
86
except self._socket_error, message:
87
raise errors.CannotBindAddress(host, port, message)
58
88
self._sockname = self._server_socket.getsockname()
59
89
self.port = self._sockname[1]
60
90
self._server_socket.listen(1)
62
92
self.backing_transport = backing_transport
63
93
self._started = threading.Event()
64
94
self._stopped = threading.Event()
95
self.root_client_path = root_client_path
97
def serve(self, thread_name_suffix=''):
67
98
self._should_terminate = False
99
# for hooks we are letting code know that a server has started (and
101
# There are three interesting urls:
102
# The URL the server can be contacted on. (e.g. bzr://host/)
103
# The URL that a commit done on the same machine as the server will
104
# have within the servers space. (e.g. file:///home/user/source)
105
# The URL that will be given to other hooks in the same process -
106
# the URL of the backing transport itself. (e.g. chroot+:///)
107
# We need all three because:
108
# * other machines see the first
109
# * local commits on this machine should be able to be mapped to
111
# * commits the server does itself need to be mapped across to this
113
# The latter two urls are different aliases to the servers url,
114
# so we group those in a list - as there might be more aliases
116
backing_urls = [self.backing_transport.base]
118
backing_urls.append(self.backing_transport.external_url())
119
except errors.InProcessTransport:
68
121
for hook in SmartTCPServer.hooks['server_started']:
69
hook(self.backing_transport.base, self.get_url())
122
hook(backing_urls, self.get_url())
123
for hook in SmartTCPServer.hooks['server_started_ex']:
124
hook(backing_urls, self)
70
125
self._started.set()
100
154
# ignore errors on close
102
156
for hook in SmartTCPServer.hooks['server_stopped']:
103
hook(self.backing_transport.base, self.get_url())
157
hook(backing_urls, self.get_url())
105
159
def get_url(self):
106
160
"""Return the url of the server"""
107
161
return "bzr://%s:%d/" % self._sockname
109
def serve_conn(self, conn):
163
def serve_conn(self, conn, thread_name_suffix):
110
164
# For WIN32, where the timeout value from the listening socket
111
# propogates to the newly accepted socket.
165
# propagates to the newly accepted socket.
112
166
conn.setblocking(True)
113
167
conn.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
114
handler = SmartServerSocketStreamMedium(conn, self.backing_transport)
115
connection_thread = threading.Thread(None, handler.serve, name='smart-server-child')
168
handler = medium.SmartServerSocketStreamMedium(
169
conn, self.backing_transport, self.root_client_path)
170
thread_name = 'smart-server-child' + thread_name_suffix
171
connection_thread = threading.Thread(
172
None, handler.serve, name=thread_name)
116
173
connection_thread.setDaemon(True)
117
174
connection_thread.start()
119
def start_background_thread(self):
176
def start_background_thread(self, thread_name_suffix=''):
120
177
self._started.clear()
121
178
self._server_thread = threading.Thread(None,
179
self.serve, args=(thread_name_suffix,),
123
180
name='server-' + self.get_url())
124
181
self._server_thread.setDaemon(True)
125
182
self._server_thread.start()
163
220
Hooks.__init__(self)
164
# Introduced in 0.16:
165
# invoked whenever the server starts serving a directory.
166
# The api signature is (backing url, public url).
167
self['server_started'] = []
168
# Introduced in 0.16:
169
# invoked whenever the server stops serving a directory.
170
# The api signature is (backing url, public url).
171
self['server_stopped'] = []
221
self.create_hook(HookPoint('server_started',
222
"Called by the bzr server when it starts serving a directory. "
223
"server_started is called with (backing urls, public url), "
224
"where backing_url is a list of URLs giving the "
225
"server-specific directory locations, and public_url is the "
226
"public URL for the directory being served.", (0, 16), None))
227
self.create_hook(HookPoint('server_started_ex',
228
"Called by the bzr server when it starts serving a directory. "
229
"server_started is called with (backing_urls, server_obj).",
231
self.create_hook(HookPoint('server_stopped',
232
"Called by the bzr server when it stops serving a directory. "
233
"server_stopped is called with the same parameters as the "
234
"server_started hook: (backing_urls, public_url).", (0, 16), None))
173
236
SmartTCPServer.hooks = SmartServerHooks()
176
239
class SmartTCPServer_for_testing(SmartTCPServer):
177
240
"""Server suitable for use by transport tests.
179
242
This server is backed by the process's cwd.
245
def __init__(self, thread_name_suffix=''):
183
246
SmartTCPServer.__init__(self, None)
247
self.client_path_extra = None
248
self.thread_name_suffix = thread_name_suffix
185
250
def get_backing_transport(self, backing_transport_server):
186
251
"""Get a backing transport from a server we are decorating."""
187
252
return transport.get_transport(backing_transport_server.get_url())
189
def setUp(self, backing_transport_server=None):
190
"""Set up server for testing"""
254
def start_server(self, backing_transport_server=None,
255
client_path_extra='/extra/'):
256
"""Set up server for testing.
258
:param backing_transport_server: backing server to use. If not
259
specified, a LocalURLServer at the current working directory will
261
:param client_path_extra: a path segment starting with '/' to append to
262
the root URL for this server. For instance, a value of '/foo/bar/'
263
will mean the root of the backing transport will be published at a
264
URL like `bzr://127.0.0.1:nnnn/foo/bar/`, rather than
265
`bzr://127.0.0.1:nnnn/`. Default value is `extra`, so that tests
266
by default will fail unless they do the necessary path translation.
268
if not client_path_extra.startswith('/'):
269
raise ValueError(client_path_extra)
191
270
from bzrlib.transport.chroot import ChrootServer
192
271
if backing_transport_server is None:
193
272
from bzrlib.transport.local import LocalURLServer
194
273
backing_transport_server = LocalURLServer()
195
274
self.chroot_server = ChrootServer(
196
275
self.get_backing_transport(backing_transport_server))
197
self.chroot_server.setUp()
276
self.chroot_server.start_server()
198
277
self.backing_transport = transport.get_transport(
199
278
self.chroot_server.get_url())
200
self.start_background_thread()
279
self.root_client_path = self.client_path_extra = client_path_extra
280
self.start_background_thread(self.thread_name_suffix)
282
def stop_server(self):
203
283
self.stop_background_thread()
204
self.chroot_server.tearDown()
284
self.chroot_server.stop_server()
287
url = super(SmartTCPServer_for_testing, self).get_url()
288
return url[:-1] + self.client_path_extra
206
290
def get_bogus_url(self):
207
291
"""Return a URL which will fail to connect"""
216
300
url = 'readonly+' + backing_transport_server.get_url()
217
301
return transport.get_transport(url)
304
class SmartTCPServer_for_testing_v2_only(SmartTCPServer_for_testing):
305
"""A variation of SmartTCPServer_for_testing that limits the client to
306
using RPCs in protocol v2 (i.e. bzr <= 1.5).
310
url = super(SmartTCPServer_for_testing_v2_only, self).get_url()
311
url = 'bzr-v2://' + url[len('bzr://'):]
315
class ReadonlySmartTCPServer_for_testing_v2_only(SmartTCPServer_for_testing_v2_only):
316
"""Get a readonly server for testing."""
318
def get_backing_transport(self, backing_transport_server):
319
"""Get a backing transport from a server we are decorating."""
320
url = 'readonly+' + backing_transport_server.get_url()
321
return transport.get_transport(url)
324
def _local_path_for_transport(transport):
325
"""Return a local path for transport, if reasonably possible.
327
This function works even if transport's url has a "readonly+" prefix,
328
unlike local_path_from_url.
330
This essentially recovers the --directory argument the user passed to "bzr
331
serve" from the transport passed to serve_bzr.
334
base_url = transport.external_url()
335
except (errors.InProcessTransport, NotImplementedError):
338
# Strip readonly prefix
339
if base_url.startswith('readonly+'):
340
base_url = base_url[len('readonly+'):]
342
return urlutils.local_path_from_url(base_url)
343
except errors.InvalidURL:
347
class BzrServerFactory(object):
348
"""Helper class for serve_bzr."""
350
def __init__(self, userdir_expander=None, get_base_path=None):
352
self.base_path = None
353
self.backing_transport = None
354
if userdir_expander is None:
355
userdir_expander = os.path.expanduser
356
self.userdir_expander = userdir_expander
357
if get_base_path is None:
358
get_base_path = _local_path_for_transport
359
self.get_base_path = get_base_path
361
def _expand_userdirs(self, path):
362
"""Translate /~/ or /~user/ to e.g. /home/foo, using
363
self.userdir_expander (os.path.expanduser by default).
365
If the translated path would fall outside base_path, or the path does
366
not start with ~, then no translation is applied.
368
If the path is inside, it is adjusted to be relative to the base path.
370
e.g. if base_path is /home, and the expanded path is /home/joe, then
371
the translated path is joe.
374
if path.startswith('~'):
375
expanded = self.userdir_expander(path)
376
if not expanded.endswith('/'):
378
if expanded.startswith(self.base_path):
379
result = expanded[len(self.base_path):]
382
def _make_expand_userdirs_filter(self, transport):
383
return pathfilter.PathFilteringServer(transport, self._expand_userdirs)
385
def _make_backing_transport(self, transport):
386
"""Chroot transport, and decorate with userdir expander."""
387
self.base_path = self.get_base_path(transport)
388
chroot_server = chroot.ChrootServer(transport)
389
chroot_server.start_server()
390
self.cleanups.append(chroot_server.stop_server)
391
transport = get_transport(chroot_server.get_url())
392
if self.base_path is not None:
393
# Decorate the server's backing transport with a filter that can
395
expand_userdirs = self._make_expand_userdirs_filter(transport)
396
expand_userdirs.start_server()
397
self.cleanups.append(expand_userdirs.stop_server)
398
transport = get_transport(expand_userdirs.get_url())
399
self.transport = transport
401
def _make_smart_server(self, host, port, inet):
403
smart_server = medium.SmartServerPipeStreamMedium(
404
sys.stdin, sys.stdout, self.transport)
407
host = medium.BZR_DEFAULT_INTERFACE
409
port = medium.BZR_DEFAULT_PORT
410
smart_server = SmartTCPServer(self.transport, host=host, port=port)
411
trace.note('listening on port: %s' % smart_server.port)
412
self.smart_server = smart_server
414
def _change_globals(self):
415
from bzrlib import lockdir, ui
416
# For the duration of this server, no UI output is permitted. note
417
# that this may cause problems with blackbox tests. This should be
418
# changed with care though, as we dont want to use bandwidth sending
419
# progress over stderr to smart server clients!
420
old_factory = ui.ui_factory
421
old_lockdir_timeout = lockdir._DEFAULT_TIMEOUT_SECONDS
422
def restore_default_ui_factory_and_lockdir_timeout():
423
ui.ui_factory = old_factory
424
lockdir._DEFAULT_TIMEOUT_SECONDS = old_lockdir_timeout
425
self.cleanups.append(restore_default_ui_factory_and_lockdir_timeout)
426
ui.ui_factory = ui.SilentUIFactory()
427
lockdir._DEFAULT_TIMEOUT_SECONDS = 0
429
def set_up(self, transport, host, port, inet):
430
self._make_backing_transport(transport)
431
self._make_smart_server(host, port, inet)
432
self._change_globals()
435
for cleanup in reversed(self.cleanups):
439
def serve_bzr(transport, host=None, port=None, inet=False):
440
"""This is the default implementation of 'bzr serve'.
442
It creates a TCP or pipe smart server on 'transport, and runs it. The
443
transport will be decorated with a chroot and pathfilter (using
446
bzr_server = BzrServerFactory()
448
bzr_server.set_up(transport, host, port, inet)
449
bzr_server.smart_server.serve()
451
bzr_server.tear_down()