78
54
from socket import error as socket_error
79
55
self._socket_error = socket_error
80
56
self._socket_timeout = socket_timeout
81
addrs = socket.getaddrinfo(host, port, socket.AF_UNSPEC,
82
socket.SOCK_STREAM, 0, socket.AI_PASSIVE)[0]
84
(family, socktype, proto, canonname, sockaddr) = addrs
86
self._server_socket = socket.socket(family, socktype, proto)
87
# SO_REUSERADDR has a different meaning on Windows
88
if sys.platform != 'win32':
89
self._server_socket.setsockopt(socket.SOL_SOCKET,
90
socket.SO_REUSEADDR, 1)
92
self._server_socket.bind(sockaddr)
93
except self._socket_error, message:
94
raise errors.CannotBindAddress(host, port, message)
57
self._server_socket = socket.socket()
58
self._server_socket.bind((host, port))
95
59
self._sockname = self._server_socket.getsockname()
96
60
self.port = self._sockname[1]
97
61
self._server_socket.listen(1)
98
62
self._server_socket.settimeout(1)
63
self.backing_transport = backing_transport
99
64
self._started = threading.Event()
100
65
self._stopped = threading.Event()
102
def _backing_urls(self):
68
self._should_terminate = False
69
# for hooks we are letting code know that a server has started (and
103
71
# There are three interesting urls:
104
72
# The URL the server can be contacted on. (e.g. bzr://host/)
105
73
# The URL that a commit done on the same machine as the server will
174
122
except self._socket_error:
175
123
# ignore errors on close
177
self.run_server_stopped_hooks()
125
for hook in SmartTCPServer.hooks['server_stopped']:
126
hook(backing_urls, self.get_url())
179
128
def get_url(self):
180
129
"""Return the url of the server"""
181
130
return "bzr://%s:%d/" % self._sockname
183
def serve_conn(self, conn, thread_name_suffix):
132
def serve_conn(self, conn):
184
133
# For WIN32, where the timeout value from the listening socket
185
# propagates to the newly accepted socket.
134
# propogates to the newly accepted socket.
186
135
conn.setblocking(True)
187
136
conn.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
188
handler = medium.SmartServerSocketStreamMedium(
189
conn, self.backing_transport, self.root_client_path)
190
thread_name = 'smart-server-child' + thread_name_suffix
191
connection_thread = threading.Thread(
192
None, handler.serve, name=thread_name)
193
# FIXME: This thread is never joined, it should at least be collected
194
# somewhere so that tests that want to check for leaked threads can get
195
# rid of them -- vila 20100531
137
handler = SmartServerSocketStreamMedium(conn, self.backing_transport)
138
connection_thread = threading.Thread(None, handler.serve, name='smart-server-child')
196
139
connection_thread.setDaemon(True)
197
140
connection_thread.start()
198
return connection_thread
200
def start_background_thread(self, thread_name_suffix=''):
142
def start_background_thread(self):
201
143
self._started.clear()
202
144
self._server_thread = threading.Thread(None,
203
self.serve, args=(thread_name_suffix,),
204
146
name='server-' + self.get_url())
205
147
self._server_thread.setDaemon(True)
206
148
self._server_thread.start()
244
186
Hooks.__init__(self)
245
self.create_hook(HookPoint('server_started',
246
"Called by the bzr server when it starts serving a directory. "
247
"server_started is called with (backing urls, public url), "
248
"where backing_url is a list of URLs giving the "
249
"server-specific directory locations, and public_url is the "
250
"public URL for the directory being served.", (0, 16), None))
251
self.create_hook(HookPoint('server_started_ex',
252
"Called by the bzr server when it starts serving a directory. "
253
"server_started is called with (backing_urls, server_obj).",
255
self.create_hook(HookPoint('server_stopped',
256
"Called by the bzr server when it stops serving a directory. "
257
"server_stopped is called with the same parameters as the "
258
"server_started hook: (backing_urls, public_url).", (0, 16), None))
187
# Introduced in 0.16:
188
# invoked whenever the server starts serving a directory.
189
# The api signature is (backing urls, public url).
190
self['server_started'] = []
191
# Introduced in 0.16:
192
# invoked whenever the server stops serving a directory.
193
# The api signature is (backing urls, public url).
194
self['server_stopped'] = []
260
196
SmartTCPServer.hooks = SmartServerHooks()
263
def _local_path_for_transport(transport):
264
"""Return a local path for transport, if reasonably possible.
266
This function works even if transport's url has a "readonly+" prefix,
267
unlike local_path_from_url.
269
This essentially recovers the --directory argument the user passed to "bzr
270
serve" from the transport passed to serve_bzr.
273
base_url = transport.external_url()
274
except (errors.InProcessTransport, NotImplementedError):
277
# Strip readonly prefix
278
if base_url.startswith('readonly+'):
279
base_url = base_url[len('readonly+'):]
281
return urlutils.local_path_from_url(base_url)
282
except errors.InvalidURL:
286
class BzrServerFactory(object):
287
"""Helper class for serve_bzr."""
289
def __init__(self, userdir_expander=None, get_base_path=None):
291
self.base_path = None
292
self.backing_transport = None
293
if userdir_expander is None:
294
userdir_expander = os.path.expanduser
295
self.userdir_expander = userdir_expander
296
if get_base_path is None:
297
get_base_path = _local_path_for_transport
298
self.get_base_path = get_base_path
300
def _expand_userdirs(self, path):
301
"""Translate /~/ or /~user/ to e.g. /home/foo, using
302
self.userdir_expander (os.path.expanduser by default).
304
If the translated path would fall outside base_path, or the path does
305
not start with ~, then no translation is applied.
307
If the path is inside, it is adjusted to be relative to the base path.
309
e.g. if base_path is /home, and the expanded path is /home/joe, then
310
the translated path is joe.
313
if path.startswith('~'):
314
expanded = self.userdir_expander(path)
315
if not expanded.endswith('/'):
317
if expanded.startswith(self.base_path):
318
result = expanded[len(self.base_path):]
321
def _make_expand_userdirs_filter(self, transport):
322
return pathfilter.PathFilteringServer(transport, self._expand_userdirs)
324
def _make_backing_transport(self, transport):
325
"""Chroot transport, and decorate with userdir expander."""
326
self.base_path = self.get_base_path(transport)
327
chroot_server = chroot.ChrootServer(transport)
328
chroot_server.start_server()
329
self.cleanups.append(chroot_server.stop_server)
330
transport = get_transport(chroot_server.get_url())
331
if self.base_path is not None:
332
# Decorate the server's backing transport with a filter that can
334
expand_userdirs = self._make_expand_userdirs_filter(transport)
335
expand_userdirs.start_server()
336
self.cleanups.append(expand_userdirs.stop_server)
337
transport = get_transport(expand_userdirs.get_url())
338
self.transport = transport
340
def _make_smart_server(self, host, port, inet):
342
smart_server = medium.SmartServerPipeStreamMedium(
343
sys.stdin, sys.stdout, self.transport)
346
host = medium.BZR_DEFAULT_INTERFACE
348
port = medium.BZR_DEFAULT_PORT
349
smart_server = SmartTCPServer(self.transport)
350
smart_server.start_server(host, port)
351
trace.note('listening on port: %s' % smart_server.port)
352
self.smart_server = smart_server
354
def _change_globals(self):
355
from bzrlib import lockdir, ui
356
# For the duration of this server, no UI output is permitted. note
357
# that this may cause problems with blackbox tests. This should be
358
# changed with care though, as we dont want to use bandwidth sending
359
# progress over stderr to smart server clients!
360
old_factory = ui.ui_factory
361
old_lockdir_timeout = lockdir._DEFAULT_TIMEOUT_SECONDS
362
def restore_default_ui_factory_and_lockdir_timeout():
363
ui.ui_factory = old_factory
364
lockdir._DEFAULT_TIMEOUT_SECONDS = old_lockdir_timeout
365
self.cleanups.append(restore_default_ui_factory_and_lockdir_timeout)
366
ui.ui_factory = ui.SilentUIFactory()
367
lockdir._DEFAULT_TIMEOUT_SECONDS = 0
369
def set_up(self, transport, host, port, inet):
370
self._make_backing_transport(transport)
371
self._make_smart_server(host, port, inet)
372
self._change_globals()
375
for cleanup in reversed(self.cleanups):
379
def serve_bzr(transport, host=None, port=None, inet=False):
380
"""This is the default implementation of 'bzr serve'.
382
It creates a TCP or pipe smart server on 'transport, and runs it. The
383
transport will be decorated with a chroot and pathfilter (using
386
bzr_server = BzrServerFactory()
388
bzr_server.set_up(transport, host, port, inet)
389
bzr_server.smart_server.serve()
391
bzr_server.tear_down()
199
class SmartTCPServer_for_testing(SmartTCPServer):
200
"""Server suitable for use by transport tests.
202
This server is backed by the process's cwd.
206
SmartTCPServer.__init__(self, None)
208
def get_backing_transport(self, backing_transport_server):
209
"""Get a backing transport from a server we are decorating."""
210
return transport.get_transport(backing_transport_server.get_url())
212
def setUp(self, backing_transport_server=None):
213
"""Set up server for testing"""
214
from bzrlib.transport.chroot import ChrootServer
215
if backing_transport_server is None:
216
from bzrlib.transport.local import LocalURLServer
217
backing_transport_server = LocalURLServer()
218
self.chroot_server = ChrootServer(
219
self.get_backing_transport(backing_transport_server))
220
self.chroot_server.setUp()
221
self.backing_transport = transport.get_transport(
222
self.chroot_server.get_url())
223
self.start_background_thread()
226
self.stop_background_thread()
227
self.chroot_server.tearDown()
229
def get_bogus_url(self):
230
"""Return a URL which will fail to connect"""
231
return 'bzr://127.0.0.1:1/'
234
class ReadonlySmartTCPServer_for_testing(SmartTCPServer_for_testing):
235
"""Get a readonly server for testing."""
237
def get_backing_transport(self, backing_transport_server):
238
"""Get a backing transport from a server we are decorating."""
239
url = 'readonly+' + backing_transport_server.get_url()
240
return transport.get_transport(url)