89
90
errno.ECONNABORTED, errno.EBADF)):
92
_range_regexp = re.compile(r'^(?P<start>\d+)-(?P<end>\d+)$')
93
error_content_type = 'text/plain'
94
error_message_format = '''\
99
def send_error(self, code, message=None):
100
"""Send and log an error reply.
102
We redefine the python-provided version to be able to set a
103
``Content-Length`` header as some http/1.1 clients complain otherwise
106
:param code: The HTTP error code.
108
:param message: The explanation of the error code, Defaults to a short
114
message = self.responses[code][0]
117
self.log_error("code %d, message %s", code, message)
118
content = (self.error_message_format %
119
{'code': code, 'message': message})
120
self.send_response(code, message)
121
self.send_header("Content-Type", self.error_content_type)
122
self.send_header("Content-Length", "%d" % len(content))
123
self.send_header('Connection', 'close')
125
if self.command != 'HEAD' and code >= 200 and code not in (204, 304):
126
self.wfile.write(content)
128
def _handle_one_request(self):
129
SimpleHTTPServer.SimpleHTTPRequestHandler.handle_one_request(self)
131
_range_regexp = re.compile(r'^(?P<start>\d+)-(?P<end>\d+)?$')
93
132
_tail_regexp = re.compile(r'^-(?P<tail>\d+)$')
95
def parse_ranges(self, ranges_header):
96
"""Parse the range header value and returns ranges and tail.
98
RFC2616 14.35 says that syntactically invalid range
99
specifiers MUST be ignored. In that case, we return 0 for
100
tail and [] for ranges.
134
def _parse_ranges(self, ranges_header, file_size):
135
"""Parse the range header value and returns ranges.
137
RFC2616 14.35 says that syntactically invalid range specifiers MUST be
138
ignored. In that case, we return None instead of a range list.
140
:param ranges_header: The 'Range' header value.
142
:param file_size: The size of the requested file.
144
:return: A list of (start, end) tuples or None if some invalid range
145
specifier is encountered.
104
147
if not ranges_header.startswith('bytes='):
105
148
# Syntactically invalid header
108
153
ranges_header = ranges_header[len('bytes='):]
109
154
for range_str in ranges_header.split(','):
110
# FIXME: RFC2616 says end is optional and default to file_size
111
155
range_match = self._range_regexp.match(range_str)
112
156
if range_match is not None:
113
157
start = int(range_match.group('start'))
114
end = int(range_match.group('end'))
158
end_match = range_match.group('end')
159
if end_match is None:
160
# RFC2616 says end is optional and default to file_size
116
165
# Syntactically invalid range
118
167
ranges.append((start, end))
120
169
tail_match = self._tail_regexp.match(range_str)
122
171
tail = int(tail_match.group('tail'))
124
173
# Syntactically invalid range
176
# Normalize tail into ranges
177
ranges.append((max(0, file_size - tail), file_size))
180
for start, end in ranges:
181
if start >= file_size:
182
# RFC2616 14.35, ranges are invalid if start >= file_size
184
# RFC2616 14.35, end values should be truncated
185
# to file_size -1 if they exceed it
186
end = min(end, file_size - 1)
187
checked_ranges.append((start, end))
188
return checked_ranges
128
190
def _header_line_length(self, keyword, value):
129
191
header_line = '%s: %s\r\n' % (keyword, value)
213
275
# mode may cause newline translations, making the
214
276
# actual size of the content transmitted *less* than
215
277
# the content-length!
216
file = open(path, 'rb')
218
280
self.send_error(404, "File not found")
221
file_size = os.fstat(file.fileno())[6]
222
tail, ranges = self.parse_ranges(ranges_header_value)
223
# Normalize tail into ranges
225
ranges.append((file_size - tail, file_size))
227
self._satisfiable_ranges = True
229
self._satisfiable_ranges = False
231
def check_range(range_specifier):
232
start, end = range_specifier
233
# RFC2616 14.35, ranges are invalid if start >= file_size
234
if start >= file_size:
235
self._satisfiable_ranges = False # Side-effect !
237
# RFC2616 14.35, end values should be truncated
238
# to file_size -1 if they exceed it
239
end = min(end, file_size - 1)
242
ranges = map(check_range, ranges)
244
if not self._satisfiable_ranges:
283
file_size = os.fstat(f.fileno())[6]
284
ranges = self._parse_ranges(ranges_header_value, file_size)
245
286
# RFC2616 14.16 and 14.35 says that when a server
246
287
# encounters unsatisfiable range specifiers, it
247
288
# SHOULD return a 416.
249
290
# FIXME: We SHOULD send a Content-Range header too,
250
291
# but the implementation of send_error does not
251
292
# allows that. So far.
319
360
self.test_case_server = test_case_server
320
361
self._home_dir = test_case_server._home_dir
322
def stop_server(self):
323
"""Called to clean-up the server.
325
Since the server may be (surely is, even) in a blocking listen, we
326
shutdown its socket before closing it.
328
# Note that is this executed as part of the implicit tear down in the
329
# main thread while the server runs in its own thread. The clean way
330
# to tear down the server is to instruct him to stop accepting
331
# connections and wait for the current connection(s) to end
332
# naturally. To end the connection naturally, the http transports
333
# should close their socket when they do not need to talk to the
334
# server anymore. This happens naturally during the garbage collection
335
# phase of the test transport objetcs (the server clients), so we
336
# don't have to worry about them. So, for the server, we must tear
337
# down here, from the main thread, when the test have ended. Note
338
# that since the server is in a blocking operation and since python
339
# use select internally, shutting down the socket is reliable and
342
self.socket.shutdown(socket.SHUT_RDWR)
343
except socket.error, e:
344
# WSAENOTCONN (10057) 'Socket is not connected' is harmless on
345
# windows (occurs before the first connection attempt
348
# 'Socket is not connected' can also occur on OSX, with a
349
# "regular" ENOTCONN (when something went wrong during test case
350
# setup leading to self.setUp() *not* being called but
351
# self.stop_server() still being called -- vila20081106
352
if not len(e.args) or e.args[0] not in (errno.ENOTCONN, 10057):
354
# Let the server properly close the socket
358
class TestingHTTPServer(SocketServer.TCPServer, TestingHTTPServerMixin):
364
class TestingHTTPServer(test_server.TestingTCPServer, TestingHTTPServerMixin):
360
366
def __init__(self, server_address, request_handler_class,
361
367
test_case_server):
368
test_server.TestingTCPServer.__init__(self, server_address,
369
request_handler_class)
362
370
TestingHTTPServerMixin.__init__(self, test_case_server)
363
SocketServer.TCPServer.__init__(self, server_address,
364
request_handler_class)
367
class TestingThreadingHTTPServer(SocketServer.ThreadingTCPServer,
373
class TestingThreadingHTTPServer(test_server.TestingThreadingTCPServer,
368
374
TestingHTTPServerMixin):
369
375
"""A threading HTTP test server for HTTP 1.1.
372
378
server, we need an independent connection for each of them. We achieve that
373
379
by spawning a new thread for each connection.
376
381
def __init__(self, server_address, request_handler_class,
377
382
test_case_server):
383
test_server.TestingThreadingTCPServer.__init__(self, server_address,
384
request_handler_class)
378
385
TestingHTTPServerMixin.__init__(self, test_case_server)
379
SocketServer.ThreadingTCPServer.__init__(self, server_address,
380
request_handler_class)
381
# Decides how threads will act upon termination of the main
382
# process. This is prophylactic as we should not leave the threads
384
self.daemon_threads = True
386
def process_request_thread(self, request, client_address):
387
SocketServer.ThreadingTCPServer.process_request_thread(
388
self, request, client_address)
389
# Under some circumstances (as in bug #383920), we need to force the
390
# shutdown as python delays it until gc occur otherwise and the client
393
# The request process has been completed, the thread is about to
394
# die, let's shutdown the socket if we can.
395
request.shutdown(socket.SHUT_RDWR)
396
except (socket.error, select.error), e:
397
if e[0] in (errno.EBADF, errno.ENOTCONN):
398
# Right, the socket is already down
404
class HttpServer(transport.Server):
388
class HttpServer(test_server.TestingTCPServerInAThread):
405
389
"""A test server for http transports.
407
391
Subclasses can provide a specific request handler.
429
413
:param protocol_version: if specified, will override the protocol
430
414
version of the request handler.
432
transport.Server.__init__(self)
433
self.request_handler = request_handler
416
# Depending on the protocol version, we will create the approriate
418
if protocol_version is None:
419
# Use the request handler one
420
proto_vers = request_handler.protocol_version
422
# Use our own, it will be used to override the request handler
424
proto_vers = protocol_version
425
# Get the appropriate server class for the required protocol
426
serv_cls = self.http_server_class.get(proto_vers, None)
428
raise httplib.UnknownProtocol(proto_vers)
434
429
self.host = 'localhost'
437
self.protocol_version = protocol_version
431
super(HttpServer, self).__init__((self.host, self.port),
434
self.protocol_version = proto_vers
438
435
# Allows tests to verify number of GET requests issued
439
436
self.GET_request_nb = 0
441
def create_httpd(self, serv_cls, rhandler_cls):
442
return serv_cls((self.host, self.port), self.request_handler, self)
445
return "%s(%s:%s)" % \
446
(self.__class__.__name__, self.host, self.port)
448
def _get_httpd(self):
449
if self._httpd is None:
450
rhandler = self.request_handler
451
# Depending on the protocol version, we will create the approriate
453
if self.protocol_version is None:
454
# Use the request handler one
455
proto_vers = rhandler.protocol_version
457
# Use our own, it will be used to override the request handler
459
proto_vers = self.protocol_version
460
# Create the appropriate server for the required protocol
461
serv_cls = self.http_server_class.get(proto_vers, None)
463
raise httplib.UnknownProtocol(proto_vers)
465
self._httpd = self.create_httpd(serv_cls, rhandler)
466
self.host, self.port = self._httpd.socket.getsockname()
469
def _http_start(self):
470
"""Server thread main entry point. """
471
self._http_running = False
474
httpd = self._get_httpd()
475
self._http_base_url = '%s://%s:%s/' % (self._url_protocol,
476
self.host, self.port)
477
self._http_running = True
479
# Whatever goes wrong, we save the exception for the main
480
# thread. Note that since we are running in a thread, no signal
481
# can be received, so we don't care about KeyboardInterrupt.
482
self._http_exception = sys.exc_info()
484
# Release the lock or the main thread will block and the whole
486
self._http_starting.release()
488
# From now on, exceptions are taken care of by the
489
# SocketServer.BaseServer or the request handler.
490
while self._http_running:
492
# Really an HTTP connection but the python framework is generic
493
# and call them requests
494
httpd.handle_request()
495
except socket.timeout:
497
except (socket.error, select.error), e:
498
if (e[0] == errno.EBADF
499
or (sys.platform == 'win32' and e[0] == 10038)):
500
# Starting with python-2.6, handle_request may raise socket
501
# or select exceptions when the server is shut down (as we
503
# 10038 = WSAENOTSOCK
504
# http://msdn.microsoft.com/en-us/library/ms740668%28VS.85%29.aspx
437
self._http_base_url = None
440
def create_server(self):
441
return self.server_class(
442
(self.host, self.port), self.request_handler_class, self)
509
444
def _get_remote_url(self, path):
510
445
path_parts = path.split(os.path.sep)
535
470
or isinstance(backing_transport_server,
536
471
test_server.LocalURLServer)):
537
472
raise AssertionError(
538
"HTTPServer currently assumes local transport, got %s" % \
473
"HTTPServer currently assumes local transport, got %s" %
539
474
backing_transport_server)
540
475
self._home_dir = os.getcwdu()
541
476
self._local_path_parts = self._home_dir.split(os.path.sep)
542
self._http_base_url = None
544
# Create the server thread
545
self._http_starting = threading.Lock()
546
self._http_starting.acquire()
547
self._http_thread = threading.Thread(target=self._http_start)
548
self._http_thread.setDaemon(True)
549
self._http_exception = None
550
self._http_thread.start()
552
# Wait for the server thread to start (i.e release the lock)
553
self._http_starting.acquire()
555
if self._http_exception is not None:
556
# Something went wrong during server start
557
exc_class, exc_value, exc_tb = self._http_exception
558
raise exc_class, exc_value, exc_tb
559
self._http_starting.release()
562
def stop_server(self):
563
self._httpd.stop_server()
564
self._http_running = False
565
# We don't need to 'self._http_thread.join()' here since the thread is
566
# a daemonic one and will be garbage collected anyway. Joining just
567
# slows us down for no added benefit.
479
super(HttpServer, self).start_server()
480
self._http_base_url = '%s://%s:%s/' % (
481
self._url_protocol, self.host, self.port)
569
483
def get_url(self):
570
484
"""See bzrlib.transport.Server.get_url."""