239
209
These are all empty initially, because by default nothing should get
242
Hooks.__init__(self, "bzrlib.smart.server", "SmartTCPServer.hooks")
243
self.add_hook('server_started',
213
self.create_hook(HookPoint('server_started',
244
214
"Called by the bzr server when it starts serving a directory. "
245
215
"server_started is called with (backing urls, public url), "
246
216
"where backing_url is a list of URLs giving the "
247
217
"server-specific directory locations, and public_url is the "
248
"public URL for the directory being served.", (0, 16))
249
self.add_hook('server_started_ex',
218
"public URL for the directory being served.", (0, 16), None))
219
self.create_hook(HookPoint('server_started_ex',
250
220
"Called by the bzr server when it starts serving a directory. "
251
221
"server_started is called with (backing_urls, server_obj).",
253
self.add_hook('server_stopped',
223
self.create_hook(HookPoint('server_stopped',
254
224
"Called by the bzr server when it stops serving a directory. "
255
225
"server_stopped is called with the same parameters as the "
256
"server_started hook: (backing_urls, public_url).", (0, 16))
257
self.add_hook('server_exception',
258
"Called by the bzr server when an exception occurs. "
259
"server_exception is called with the sys.exc_info() tuple "
260
"return true for the hook if the exception has been handled, "
261
"in which case the server will exit normally.", (2, 4))
226
"server_started hook: (backing_urls, public_url).", (0, 16), None))
263
228
SmartTCPServer.hooks = SmartServerHooks()
266
def _local_path_for_transport(transport):
267
"""Return a local path for transport, if reasonably possible.
269
This function works even if transport's url has a "readonly+" prefix,
270
unlike local_path_from_url.
272
This essentially recovers the --directory argument the user passed to "bzr
273
serve" from the transport passed to serve_bzr.
276
base_url = transport.external_url()
277
except (errors.InProcessTransport, NotImplementedError):
231
class SmartTCPServer_for_testing(SmartTCPServer):
232
"""Server suitable for use by transport tests.
234
This server is backed by the process's cwd.
237
def __init__(self, thread_name_suffix=''):
238
SmartTCPServer.__init__(self, None)
239
self.client_path_extra = None
240
self.thread_name_suffix = thread_name_suffix
242
def get_backing_transport(self, backing_transport_server):
243
"""Get a backing transport from a server we are decorating."""
244
return transport.get_transport(backing_transport_server.get_url())
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def setUp(self, backing_transport_server=None,
247
client_path_extra='/extra/'):
248
"""Set up server for testing.
250
:param backing_transport_server: backing server to use. If not
251
specified, a LocalURLServer at the current working directory will
253
:param client_path_extra: a path segment starting with '/' to append to
254
the root URL for this server. For instance, a value of '/foo/bar/'
255
will mean the root of the backing transport will be published at a
256
URL like `bzr://127.0.0.1:nnnn/foo/bar/`, rather than
257
`bzr://127.0.0.1:nnnn/`. Default value is `extra`, so that tests
258
by default will fail unless they do the necessary path translation.
260
if not client_path_extra.startswith('/'):
261
raise ValueError(client_path_extra)
262
from bzrlib.transport.chroot import ChrootServer
263
if backing_transport_server is None:
264
from bzrlib.transport.local import LocalURLServer
265
backing_transport_server = LocalURLServer()
266
self.chroot_server = ChrootServer(
267
self.get_backing_transport(backing_transport_server))
268
self.chroot_server.setUp()
269
self.backing_transport = transport.get_transport(
270
self.chroot_server.get_url())
271
self.root_client_path = self.client_path_extra = client_path_extra
272
self.start_background_thread(self.thread_name_suffix)
275
self.stop_background_thread()
276
self.chroot_server.tearDown()
279
url = super(SmartTCPServer_for_testing, self).get_url()
280
return url[:-1] + self.client_path_extra
282
def get_bogus_url(self):
283
"""Return a URL which will fail to connect"""
284
return 'bzr://127.0.0.1:1/'
287
class ReadonlySmartTCPServer_for_testing(SmartTCPServer_for_testing):
288
"""Get a readonly server for testing."""
290
def get_backing_transport(self, backing_transport_server):
291
"""Get a backing transport from a server we are decorating."""
292
url = 'readonly+' + backing_transport_server.get_url()
293
return transport.get_transport(url)
296
class SmartTCPServer_for_testing_v2_only(SmartTCPServer_for_testing):
297
"""A variation of SmartTCPServer_for_testing that limits the client to
298
using RPCs in protocol v2 (i.e. bzr <= 1.5).
302
url = super(SmartTCPServer_for_testing_v2_only, self).get_url()
303
url = 'bzr-v2://' + url[len('bzr://'):]
307
class ReadonlySmartTCPServer_for_testing_v2_only(SmartTCPServer_for_testing_v2_only):
308
"""Get a readonly server for testing."""
310
def get_backing_transport(self, backing_transport_server):
311
"""Get a backing transport from a server we are decorating."""
312
url = 'readonly+' + backing_transport_server.get_url()
313
return transport.get_transport(url)
316
def serve_bzr(transport, host=None, port=None, inet=False):
317
from bzrlib import lockdir, ui
318
from bzrlib.transport import get_transport
319
from bzrlib.transport.chroot import ChrootServer
320
chroot_server = ChrootServer(transport)
321
chroot_server.setUp()
322
transport = get_transport(chroot_server.get_url())
324
smart_server = medium.SmartServerPipeStreamMedium(
325
sys.stdin, sys.stdout, transport)
280
# Strip readonly prefix
281
if base_url.startswith('readonly+'):
282
base_url = base_url[len('readonly+'):]
284
return urlutils.local_path_from_url(base_url)
285
except errors.InvalidURL:
289
class BzrServerFactory(object):
290
"""Helper class for serve_bzr."""
292
def __init__(self, userdir_expander=None, get_base_path=None):
294
self.base_path = None
295
self.backing_transport = None
296
if userdir_expander is None:
297
userdir_expander = os.path.expanduser
298
self.userdir_expander = userdir_expander
299
if get_base_path is None:
300
get_base_path = _local_path_for_transport
301
self.get_base_path = get_base_path
303
def _expand_userdirs(self, path):
304
"""Translate /~/ or /~user/ to e.g. /home/foo, using
305
self.userdir_expander (os.path.expanduser by default).
307
If the translated path would fall outside base_path, or the path does
308
not start with ~, then no translation is applied.
310
If the path is inside, it is adjusted to be relative to the base path.
312
e.g. if base_path is /home, and the expanded path is /home/joe, then
313
the translated path is joe.
316
if path.startswith('~'):
317
expanded = self.userdir_expander(path)
318
if not expanded.endswith('/'):
320
if expanded.startswith(self.base_path):
321
result = expanded[len(self.base_path):]
324
def _make_expand_userdirs_filter(self, transport):
325
return pathfilter.PathFilteringServer(transport, self._expand_userdirs)
327
def _make_backing_transport(self, transport):
328
"""Chroot transport, and decorate with userdir expander."""
329
self.base_path = self.get_base_path(transport)
330
chroot_server = chroot.ChrootServer(transport)
331
chroot_server.start_server()
332
self.cleanups.append(chroot_server.stop_server)
333
transport = _mod_transport.get_transport_from_url(chroot_server.get_url())
334
if self.base_path is not None:
335
# Decorate the server's backing transport with a filter that can
337
expand_userdirs = self._make_expand_userdirs_filter(transport)
338
expand_userdirs.start_server()
339
self.cleanups.append(expand_userdirs.stop_server)
340
transport = _mod_transport.get_transport_from_url(expand_userdirs.get_url())
341
self.transport = transport
343
def _make_smart_server(self, host, port, inet):
345
smart_server = medium.SmartServerPipeStreamMedium(
346
sys.stdin, sys.stdout, self.transport)
349
host = medium.BZR_DEFAULT_INTERFACE
351
port = medium.BZR_DEFAULT_PORT
352
smart_server = SmartTCPServer(self.transport)
353
smart_server.start_server(host, port)
354
trace.note('listening on port: %s' % smart_server.port)
355
self.smart_server = smart_server
357
def _change_globals(self):
358
from bzrlib import lockdir, ui
359
# For the duration of this server, no UI output is permitted. note
360
# that this may cause problems with blackbox tests. This should be
361
# changed with care though, as we dont want to use bandwidth sending
362
# progress over stderr to smart server clients!
363
old_factory = ui.ui_factory
364
old_lockdir_timeout = lockdir._DEFAULT_TIMEOUT_SECONDS
365
def restore_default_ui_factory_and_lockdir_timeout():
366
ui.ui_factory = old_factory
367
lockdir._DEFAULT_TIMEOUT_SECONDS = old_lockdir_timeout
368
self.cleanups.append(restore_default_ui_factory_and_lockdir_timeout)
328
host = medium.BZR_DEFAULT_INTERFACE
330
port = medium.BZR_DEFAULT_PORT
331
smart_server = SmartTCPServer(transport, host=host, port=port)
332
trace.note('listening on port: %s' % smart_server.port)
333
# For the duration of this server, no UI output is permitted. note
334
# that this may cause problems with blackbox tests. This should be
335
# changed with care though, as we dont want to use bandwidth sending
336
# progress over stderr to smart server clients!
337
old_factory = ui.ui_factory
338
old_lockdir_timeout = lockdir._DEFAULT_TIMEOUT_SECONDS
369
340
ui.ui_factory = ui.SilentUIFactory()
370
341
lockdir._DEFAULT_TIMEOUT_SECONDS = 0
372
def set_up(self, transport, host, port, inet):
373
self._make_backing_transport(transport)
374
self._make_smart_server(host, port, inet)
375
self._change_globals()
378
for cleanup in reversed(self.cleanups):
381
def serve_bzr(transport, host=None, port=None, inet=False):
382
"""This is the default implementation of 'bzr serve'.
384
It creates a TCP or pipe smart server on 'transport, and runs it. The
385
transport will be decorated with a chroot and pathfilter (using
388
bzr_server = BzrServerFactory()
390
bzr_server.set_up(transport, host, port, inet)
391
bzr_server.smart_server.serve()
393
hook_caught_exception = False
394
for hook in SmartTCPServer.hooks['server_exception']:
395
hook_caught_exception = hook(sys.exc_info())
396
if not hook_caught_exception:
399
bzr_server.tear_down()
344
ui.ui_factory = old_factory
345
lockdir._DEFAULT_TIMEOUT_SECONDS = old_lockdir_timeout