Revision 9501323b
b/lib/http/__init__.py | ||
---|---|---|
22 | 22 |
|
23 | 23 |
""" |
24 | 24 |
|
25 |
import BaseHTTPServer |
|
26 |
import cgi |
|
27 | 25 |
import logging |
28 | 26 |
import mimetools |
29 | 27 |
import OpenSSL |
30 |
import os |
|
31 | 28 |
import select |
32 | 29 |
import socket |
33 |
import time |
|
34 |
import signal |
|
35 | 30 |
import errno |
36 |
import threading |
|
37 | 31 |
|
38 | 32 |
from cStringIO import StringIO |
39 | 33 |
|
40 | 34 |
from ganeti import constants |
41 | 35 |
from ganeti import serializer |
42 |
from ganeti import workerpool |
|
43 | 36 |
from ganeti import utils |
44 | 37 |
|
45 | 38 |
|
... | ... | |
47 | 40 |
|
48 | 41 |
HTTP_GANETI_VERSION = "Ganeti %s" % constants.RELEASE_VERSION |
49 | 42 |
|
50 |
WEEKDAYNAME = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] |
|
51 |
MONTHNAME = [None, |
|
52 |
'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', |
|
53 |
'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'] |
|
54 |
|
|
55 |
# Default error message |
|
56 |
DEFAULT_ERROR_CONTENT_TYPE = "text/html" |
|
57 |
DEFAULT_ERROR_MESSAGE = """\ |
|
58 |
<head> |
|
59 |
<title>Error response</title> |
|
60 |
</head> |
|
61 |
<body> |
|
62 |
<h1>Error response</h1> |
|
63 |
<p>Error code %(code)d. |
|
64 |
<p>Message: %(message)s. |
|
65 |
<p>Error code explanation: %(code)s = %(explain)s. |
|
66 |
</body> |
|
67 |
""" |
|
68 |
|
|
69 | 43 |
HTTP_OK = 200 |
70 | 44 |
HTTP_NO_CONTENT = 204 |
71 | 45 |
HTTP_NOT_MODIFIED = 304 |
... | ... | |
97 | 71 |
SOCKOP_SHUTDOWN) = range(3) |
98 | 72 |
|
99 | 73 |
|
100 |
class SocketClosed(socket.error): |
|
101 |
pass |
|
102 |
|
|
103 |
|
|
104 | 74 |
class HttpError(Exception): |
105 | 75 |
"""Internal exception for HTTP errors. |
106 | 76 |
|
... | ... | |
449 | 419 |
self._ssl_cert.digest("md5") == cert.digest("md5")) |
450 | 420 |
|
451 | 421 |
|
452 |
class HttpServerRequestExecutor(object): |
|
453 |
"""Implements server side of HTTP |
|
454 |
|
|
455 |
This class implements the server side of HTTP. It's based on code of Python's |
|
456 |
BaseHTTPServer, from both version 2.4 and 3k. It does not support non-ASCII |
|
457 |
character encodings. Keep-alive connections are not supported. |
|
458 |
|
|
459 |
""" |
|
460 |
# The default request version. This only affects responses up until |
|
461 |
# the point where the request line is parsed, so it mainly decides what |
|
462 |
# the client gets back when sending a malformed request line. |
|
463 |
# Most web servers default to HTTP 0.9, i.e. don't send a status line. |
|
464 |
default_request_version = HTTP_0_9 |
|
465 |
|
|
466 |
# Error message settings |
|
467 |
error_message_format = DEFAULT_ERROR_MESSAGE |
|
468 |
error_content_type = DEFAULT_ERROR_CONTENT_TYPE |
|
469 |
|
|
470 |
responses = BaseHTTPServer.BaseHTTPRequestHandler.responses |
|
471 |
|
|
472 |
def __init__(self, server, conn, client_addr, fileio_class): |
|
473 |
"""Initializes this class. |
|
474 |
|
|
475 |
Part of the initialization is reading the request and eventual POST/PUT |
|
476 |
data sent by the client. |
|
477 |
|
|
478 |
""" |
|
479 |
self._server = server |
|
480 |
|
|
481 |
# We default rfile to buffered because otherwise it could be |
|
482 |
# really slow for large data (a getc() call per byte); we make |
|
483 |
# wfile unbuffered because (a) often after a write() we want to |
|
484 |
# read and we need to flush the line; (b) big writes to unbuffered |
|
485 |
# files are typically optimized by stdio even when big reads |
|
486 |
# aren't. |
|
487 |
self.rfile = fileio_class(conn, mode="rb", bufsize=-1) |
|
488 |
self.wfile = fileio_class(conn, mode="wb", bufsize=0) |
|
489 |
|
|
490 |
self.client_addr = client_addr |
|
491 |
|
|
492 |
self.request_headers = None |
|
493 |
self.request_method = None |
|
494 |
self.request_path = None |
|
495 |
self.request_requestline = None |
|
496 |
self.request_version = self.default_request_version |
|
497 |
|
|
498 |
self.response_body = None |
|
499 |
self.response_code = HTTP_OK |
|
500 |
self.response_content_type = None |
|
501 |
self.response_headers = {} |
|
502 |
|
|
503 |
logging.info("Connection from %s:%s", client_addr[0], client_addr[1]) |
|
504 |
try: |
|
505 |
try: |
|
506 |
try: |
|
507 |
try: |
|
508 |
# Read, parse and handle request |
|
509 |
self._ReadRequest() |
|
510 |
self._ReadPostData() |
|
511 |
self._HandleRequest() |
|
512 |
except HttpException, err: |
|
513 |
self._SetErrorStatus(err) |
|
514 |
finally: |
|
515 |
# Try to send a response |
|
516 |
self._SendResponse() |
|
517 |
self._Close() |
|
518 |
except SocketClosed: |
|
519 |
pass |
|
520 |
finally: |
|
521 |
logging.info("Disconnected %s:%s", client_addr[0], client_addr[1]) |
|
522 |
|
|
523 |
def _Close(self): |
|
524 |
if not self.wfile.closed: |
|
525 |
self.wfile.flush() |
|
526 |
self.wfile.close() |
|
527 |
self.rfile.close() |
|
528 |
|
|
529 |
def _DateTimeHeader(self): |
|
530 |
"""Return the current date and time formatted for a message header. |
|
531 |
|
|
532 |
""" |
|
533 |
(year, month, day, hh, mm, ss, wd, _, _) = time.gmtime() |
|
534 |
return ("%s, %02d %3s %4d %02d:%02d:%02d GMT" % |
|
535 |
(WEEKDAYNAME[wd], day, MONTHNAME[month], year, hh, mm, ss)) |
|
536 |
|
|
537 |
def _SetErrorStatus(self, err): |
|
538 |
"""Sets the response code and body from a HttpException. |
|
539 |
|
|
540 |
@type err: HttpException |
|
541 |
@param err: Exception instance |
|
542 |
|
|
543 |
""" |
|
544 |
try: |
|
545 |
(shortmsg, longmsg) = self.responses[err.code] |
|
546 |
except KeyError: |
|
547 |
shortmsg = longmsg = "Unknown" |
|
548 |
|
|
549 |
if err.message: |
|
550 |
message = err.message |
|
551 |
else: |
|
552 |
message = shortmsg |
|
553 |
|
|
554 |
values = { |
|
555 |
"code": err.code, |
|
556 |
"message": cgi.escape(message), |
|
557 |
"explain": longmsg, |
|
558 |
} |
|
559 |
|
|
560 |
self.response_code = err.code |
|
561 |
self.response_content_type = self.error_content_type |
|
562 |
self.response_body = self.error_message_format % values |
|
563 |
|
|
564 |
def _HandleRequest(self): |
|
565 |
"""Handle the actual request. |
|
566 |
|
|
567 |
Calls the actual handler function and converts exceptions into HTTP errors. |
|
568 |
|
|
569 |
""" |
|
570 |
# Don't do anything if there's already been a problem |
|
571 |
if self.response_code != HTTP_OK: |
|
572 |
return |
|
573 |
|
|
574 |
assert self.request_method, "Status code %s requires a method" % HTTP_OK |
|
575 |
|
|
576 |
# Check whether client is still there |
|
577 |
self.rfile.read(0) |
|
578 |
|
|
579 |
try: |
|
580 |
try: |
|
581 |
result = self._server.HandleRequest(self) |
|
582 |
|
|
583 |
# TODO: Content-type |
|
584 |
encoder = HttpJsonConverter() |
|
585 |
body = encoder.Encode(result) |
|
586 |
|
|
587 |
self.response_content_type = encoder.CONTENT_TYPE |
|
588 |
self.response_body = body |
|
589 |
except (HttpException, KeyboardInterrupt, SystemExit): |
|
590 |
raise |
|
591 |
except Exception, err: |
|
592 |
logging.exception("Caught exception") |
|
593 |
raise HttpInternalError(message=str(err)) |
|
594 |
except: |
|
595 |
logging.exception("Unknown exception") |
|
596 |
raise HttpInternalError(message="Unknown error") |
|
597 |
|
|
598 |
except HttpException, err: |
|
599 |
self._SetErrorStatus(err) |
|
600 |
|
|
601 |
def _SendResponse(self): |
|
602 |
"""Sends response to the client. |
|
603 |
|
|
604 |
""" |
|
605 |
# Check whether client is still there |
|
606 |
self.rfile.read(0) |
|
607 |
|
|
608 |
logging.info("%s:%s %s %s", self.client_addr[0], self.client_addr[1], |
|
609 |
self.request_requestline, self.response_code) |
|
610 |
|
|
611 |
if self.response_code in self.responses: |
|
612 |
response_message = self.responses[self.response_code][0] |
|
613 |
else: |
|
614 |
response_message = "" |
|
615 |
|
|
616 |
if self.request_version != HTTP_0_9: |
|
617 |
self.wfile.write("%s %d %s\r\n" % |
|
618 |
(self.request_version, self.response_code, |
|
619 |
response_message)) |
|
620 |
self._SendHeader(HTTP_SERVER, HTTP_GANETI_VERSION) |
|
621 |
self._SendHeader(HTTP_DATE, self._DateTimeHeader()) |
|
622 |
self._SendHeader(HTTP_CONTENT_TYPE, self.response_content_type) |
|
623 |
self._SendHeader(HTTP_CONTENT_LENGTH, str(len(self.response_body))) |
|
624 |
for key, val in self.response_headers.iteritems(): |
|
625 |
self._SendHeader(key, val) |
|
626 |
|
|
627 |
# We don't support keep-alive at this time |
|
628 |
self._SendHeader(HTTP_CONNECTION, "close") |
|
629 |
self.wfile.write("\r\n") |
|
630 |
|
|
631 |
if (self.request_method != HTTP_HEAD and |
|
632 |
self.response_code >= HTTP_OK and |
|
633 |
self.response_code not in (HTTP_NO_CONTENT, HTTP_NOT_MODIFIED)): |
|
634 |
self.wfile.write(self.response_body) |
|
635 |
|
|
636 |
def _SendHeader(self, name, value): |
|
637 |
if self.request_version != HTTP_0_9: |
|
638 |
self.wfile.write("%s: %s\r\n" % (name, value)) |
|
639 |
|
|
640 |
def _ReadRequest(self): |
|
641 |
"""Reads and parses request line |
|
642 |
|
|
643 |
""" |
|
644 |
raw_requestline = self.rfile.readline() |
|
645 |
|
|
646 |
requestline = raw_requestline |
|
647 |
if requestline[-2:] == '\r\n': |
|
648 |
requestline = requestline[:-2] |
|
649 |
elif requestline[-1:] == '\n': |
|
650 |
requestline = requestline[:-1] |
|
651 |
|
|
652 |
if not requestline: |
|
653 |
raise HttpBadRequest("Empty request line") |
|
654 |
|
|
655 |
self.request_requestline = requestline |
|
656 |
|
|
657 |
logging.debug("HTTP request: %s", raw_requestline.rstrip("\r\n")) |
|
658 |
|
|
659 |
words = requestline.split() |
|
660 |
|
|
661 |
if len(words) == 3: |
|
662 |
[method, path, version] = words |
|
663 |
if version[:5] != 'HTTP/': |
|
664 |
raise HttpBadRequest("Bad request version (%r)" % version) |
|
665 |
|
|
666 |
try: |
|
667 |
base_version_number = version.split('/', 1)[1] |
|
668 |
version_number = base_version_number.split(".") |
|
669 |
|
|
670 |
# RFC 2145 section 3.1 says there can be only one "." and |
|
671 |
# - major and minor numbers MUST be treated as |
|
672 |
# separate integers; |
|
673 |
# - HTTP/2.4 is a lower version than HTTP/2.13, which in |
|
674 |
# turn is lower than HTTP/12.3; |
|
675 |
# - Leading zeros MUST be ignored by recipients. |
|
676 |
if len(version_number) != 2: |
|
677 |
raise HttpBadRequest("Bad request version (%r)" % version) |
|
678 |
|
|
679 |
version_number = int(version_number[0]), int(version_number[1]) |
|
680 |
except (ValueError, IndexError): |
|
681 |
raise HttpBadRequest("Bad request version (%r)" % version) |
|
682 |
|
|
683 |
if version_number >= (2, 0): |
|
684 |
raise HttpVersionNotSupported("Invalid HTTP Version (%s)" % |
|
685 |
base_version_number) |
|
686 |
|
|
687 |
elif len(words) == 2: |
|
688 |
version = HTTP_0_9 |
|
689 |
[method, path] = words |
|
690 |
if method != HTTP_GET: |
|
691 |
raise HttpBadRequest("Bad HTTP/0.9 request type (%r)" % method) |
|
692 |
|
|
693 |
else: |
|
694 |
raise HttpBadRequest("Bad request syntax (%r)" % requestline) |
|
695 |
|
|
696 |
# Examine the headers and look for a Connection directive |
|
697 |
headers = mimetools.Message(self.rfile, 0) |
|
698 |
|
|
699 |
self.request_method = method |
|
700 |
self.request_path = path |
|
701 |
self.request_version = version |
|
702 |
self.request_headers = headers |
|
703 |
|
|
704 |
def _ReadPostData(self): |
|
705 |
"""Reads POST/PUT data |
|
706 |
|
|
707 |
Quoting RFC1945, section 7.2 (HTTP/1.0): "The presence of an entity body in |
|
708 |
a request is signaled by the inclusion of a Content-Length header field in |
|
709 |
the request message headers. HTTP/1.0 requests containing an entity body |
|
710 |
must include a valid Content-Length header field." |
|
711 |
|
|
712 |
""" |
|
713 |
# While not according to specification, we only support an entity body for |
|
714 |
# POST and PUT. |
|
715 |
if (not self.request_method or |
|
716 |
self.request_method.upper() not in (HTTP_POST, HTTP_PUT)): |
|
717 |
self.request_post_data = None |
|
718 |
return |
|
719 |
|
|
720 |
content_length = None |
|
721 |
try: |
|
722 |
if HTTP_CONTENT_LENGTH in self.request_headers: |
|
723 |
content_length = int(self.request_headers[HTTP_CONTENT_LENGTH]) |
|
724 |
except TypeError: |
|
725 |
pass |
|
726 |
except ValueError: |
|
727 |
pass |
|
728 |
|
|
729 |
# 411 Length Required is specified in RFC2616, section 10.4.12 (HTTP/1.1) |
|
730 |
if content_length is None: |
|
731 |
raise HttpLengthRequired("Missing Content-Length header or" |
|
732 |
" invalid format") |
|
733 |
|
|
734 |
data = self.rfile.read(content_length) |
|
735 |
|
|
736 |
# TODO: Content-type, error handling |
|
737 |
if data: |
|
738 |
self.request_post_data = HttpJsonConverter().Decode(data) |
|
739 |
else: |
|
740 |
self.request_post_data = None |
|
741 |
|
|
742 |
logging.debug("HTTP POST data: %s", self.request_post_data) |
|
743 |
|
|
744 |
|
|
745 |
class HttpServer(HttpSocketBase): |
|
746 |
"""Generic HTTP server class |
|
747 |
|
|
748 |
Users of this class must subclass it and override the HandleRequest function. |
|
749 |
|
|
750 |
""" |
|
751 |
MAX_CHILDREN = 20 |
|
752 |
|
|
753 |
def __init__(self, mainloop, local_address, port, |
|
754 |
ssl_params=None, ssl_verify_peer=False): |
|
755 |
"""Initializes the HTTP server |
|
756 |
|
|
757 |
@type mainloop: ganeti.daemon.Mainloop |
|
758 |
@param mainloop: Mainloop used to poll for I/O events |
|
759 |
@type local_addess: string |
|
760 |
@param local_address: Local IP address to bind to |
|
761 |
@type port: int |
|
762 |
@param port: TCP port to listen on |
|
763 |
@type ssl_params: HttpSslParams |
|
764 |
@param ssl_params: SSL key and certificate |
|
765 |
@type ssl_verify_peer: bool |
|
766 |
@param ssl_verify_peer: Whether to require client certificate and compare |
|
767 |
it with our certificate |
|
768 |
|
|
769 |
""" |
|
770 |
HttpSocketBase.__init__(self) |
|
771 |
|
|
772 |
self.mainloop = mainloop |
|
773 |
self.local_address = local_address |
|
774 |
self.port = port |
|
775 |
|
|
776 |
self.socket = self._CreateSocket(ssl_params, ssl_verify_peer) |
|
777 |
|
|
778 |
# Allow port to be reused |
|
779 |
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) |
|
780 |
|
|
781 |
if self._using_ssl: |
|
782 |
self._fileio_class = _SSLFileObject |
|
783 |
else: |
|
784 |
self._fileio_class = socket._fileobject |
|
785 |
|
|
786 |
self._children = [] |
|
787 |
|
|
788 |
mainloop.RegisterIO(self, self.socket.fileno(), select.POLLIN) |
|
789 |
mainloop.RegisterSignal(self) |
|
790 |
|
|
791 |
def Start(self): |
|
792 |
self.socket.bind((self.local_address, self.port)) |
|
793 |
self.socket.listen(5) |
|
794 |
|
|
795 |
def Stop(self): |
|
796 |
self.socket.close() |
|
797 |
|
|
798 |
def OnIO(self, fd, condition): |
|
799 |
if condition & select.POLLIN: |
|
800 |
self._IncomingConnection() |
|
801 |
|
|
802 |
def OnSignal(self, signum): |
|
803 |
if signum == signal.SIGCHLD: |
|
804 |
self._CollectChildren(True) |
|
805 |
|
|
806 |
def _CollectChildren(self, quick): |
|
807 |
"""Checks whether any child processes are done |
|
808 |
|
|
809 |
@type quick: bool |
|
810 |
@param quick: Whether to only use non-blocking functions |
|
811 |
|
|
812 |
""" |
|
813 |
if not quick: |
|
814 |
# Don't wait for other processes if it should be a quick check |
|
815 |
while len(self._children) > self.MAX_CHILDREN: |
|
816 |
try: |
|
817 |
# Waiting without a timeout brings us into a potential DoS situation. |
|
818 |
# As soon as too many children run, we'll not respond to new |
|
819 |
# requests. The real solution would be to add a timeout for children |
|
820 |
# and killing them after some time. |
|
821 |
pid, status = os.waitpid(0, 0) |
|
822 |
except os.error: |
|
823 |
pid = None |
|
824 |
if pid and pid in self._children: |
|
825 |
self._children.remove(pid) |
|
826 |
|
|
827 |
for child in self._children: |
|
828 |
try: |
|
829 |
pid, status = os.waitpid(child, os.WNOHANG) |
|
830 |
except os.error: |
|
831 |
pid = None |
|
832 |
if pid and pid in self._children: |
|
833 |
self._children.remove(pid) |
|
834 |
|
|
835 |
def _IncomingConnection(self): |
|
836 |
"""Called for each incoming connection |
|
837 |
|
|
838 |
""" |
|
839 |
(connection, client_addr) = self.socket.accept() |
|
840 |
|
|
841 |
self._CollectChildren(False) |
|
842 |
|
|
843 |
pid = os.fork() |
|
844 |
if pid == 0: |
|
845 |
# Child process |
|
846 |
try: |
|
847 |
HttpServerRequestExecutor(self, connection, client_addr, |
|
848 |
self._fileio_class) |
|
849 |
except: |
|
850 |
logging.exception("Error while handling request from %s:%s", |
|
851 |
client_addr[0], client_addr[1]) |
|
852 |
os._exit(1) |
|
853 |
os._exit(0) |
|
854 |
else: |
|
855 |
self._children.append(pid) |
|
856 |
|
|
857 |
def HandleRequest(self, req): |
|
858 |
raise NotImplementedError() |
|
859 |
|
|
860 |
|
|
861 |
class HttpClientRequest(object): |
|
862 |
def __init__(self, host, port, method, path, headers=None, post_data=None, |
|
863 |
ssl_params=None, ssl_verify_peer=False): |
|
864 |
"""Describes an HTTP request. |
|
865 |
|
|
866 |
@type host: string |
|
867 |
@param host: Hostname |
|
868 |
@type port: int |
|
869 |
@param port: Port |
|
870 |
@type method: string |
|
871 |
@param method: Method name |
|
872 |
@type path: string |
|
873 |
@param path: Request path |
|
874 |
@type headers: dict or None |
|
875 |
@param headers: Additional headers to send |
|
876 |
@type post_data: string or None |
|
877 |
@param post_data: Additional data to send |
|
878 |
@type ssl_params: HttpSslParams |
|
879 |
@param ssl_params: SSL key and certificate |
|
880 |
@type ssl_verify_peer: bool |
|
881 |
@param ssl_verify_peer: Whether to compare our certificate with server's |
|
882 |
certificate |
|
883 |
|
|
884 |
""" |
|
885 |
if post_data is not None: |
|
886 |
assert method.upper() in (HTTP_POST, HTTP_PUT), \ |
|
887 |
"Only POST and GET requests support sending data" |
|
888 |
|
|
889 |
assert path.startswith("/"), "Path must start with slash (/)" |
|
890 |
|
|
891 |
self.host = host |
|
892 |
self.port = port |
|
893 |
self.ssl_params = ssl_params |
|
894 |
self.ssl_verify_peer = ssl_verify_peer |
|
895 |
self.method = method |
|
896 |
self.path = path |
|
897 |
self.headers = headers |
|
898 |
self.post_data = post_data |
|
899 |
|
|
900 |
self.success = None |
|
901 |
self.error = None |
|
902 |
|
|
903 |
self.resp_status_line = None |
|
904 |
self.resp_version = None |
|
905 |
self.resp_status = None |
|
906 |
self.resp_reason = None |
|
907 |
self.resp_headers = None |
|
908 |
self.resp_body = None |
|
909 |
|
|
910 |
|
|
911 |
class HttpClientRequestExecutor(HttpSocketBase): |
|
912 |
# Default headers |
|
913 |
DEFAULT_HEADERS = { |
|
914 |
HTTP_USER_AGENT: HTTP_GANETI_VERSION, |
|
915 |
# TODO: For keep-alive, don't send "Connection: close" |
|
916 |
HTTP_CONNECTION: "close", |
|
917 |
} |
|
918 |
|
|
919 |
# Length limits |
|
920 |
STATUS_LINE_LENGTH_MAX = 512 |
|
921 |
HEADER_LENGTH_MAX = 4 * 1024 |
|
922 |
|
|
923 |
# Timeouts in seconds for socket layer |
|
924 |
# TODO: Make read timeout configurable per OpCode |
|
925 |
CONNECT_TIMEOUT = 5.0 |
|
926 |
WRITE_TIMEOUT = 10 |
|
927 |
READ_TIMEOUT = None |
|
928 |
CLOSE_TIMEOUT = 1 |
|
929 |
|
|
930 |
# Parser state machine |
|
931 |
PS_STATUS_LINE = "status-line" |
|
932 |
PS_HEADERS = "headers" |
|
933 |
PS_BODY = "body" |
|
934 |
PS_COMPLETE = "complete" |
|
935 |
|
|
936 |
def __init__(self, req): |
|
937 |
"""Initializes the HttpClientRequestExecutor class. |
|
938 |
|
|
939 |
@type req: HttpClientRequest |
|
940 |
@param req: Request object |
|
941 |
|
|
942 |
""" |
|
943 |
HttpSocketBase.__init__(self) |
|
944 |
|
|
945 |
self.request = req |
|
946 |
|
|
947 |
self.parser_status = self.PS_STATUS_LINE |
|
948 |
self.header_buffer = StringIO() |
|
949 |
self.body_buffer = StringIO() |
|
950 |
self.content_length = None |
|
951 |
self.server_will_close = None |
|
952 |
|
|
953 |
self.poller = select.poll() |
|
954 |
|
|
955 |
try: |
|
956 |
# TODO: Implement connection caching/keep-alive |
|
957 |
self.sock = self._CreateSocket(req.ssl_params, |
|
958 |
req.ssl_verify_peer) |
|
959 |
|
|
960 |
# Disable Python's timeout |
|
961 |
self.sock.settimeout(None) |
|
962 |
|
|
963 |
# Operate in non-blocking mode |
|
964 |
self.sock.setblocking(0) |
|
965 |
|
|
966 |
force_close = True |
|
967 |
self._Connect() |
|
968 |
try: |
|
969 |
self._SendRequest() |
|
970 |
self._ReadResponse() |
|
971 |
|
|
972 |
# Only wait for server to close if we didn't have any exception. |
|
973 |
force_close = False |
|
974 |
finally: |
|
975 |
self._CloseConnection(force_close) |
|
976 |
|
|
977 |
self.sock.close() |
|
978 |
self.sock = None |
|
979 |
|
|
980 |
req.resp_body = self.body_buffer.getvalue() |
|
981 |
|
|
982 |
req.success = True |
|
983 |
req.error = None |
|
984 |
|
|
985 |
except _HttpClientError, err: |
|
986 |
req.success = False |
|
987 |
req.error = str(err) |
|
988 |
|
|
989 |
def _BuildRequest(self): |
|
990 |
"""Build HTTP request. |
|
991 |
|
|
992 |
@rtype: string |
|
993 |
@return: Complete request |
|
994 |
|
|
995 |
""" |
|
996 |
# Headers |
|
997 |
send_headers = self.DEFAULT_HEADERS.copy() |
|
998 |
|
|
999 |
if self.request.headers: |
|
1000 |
send_headers.update(self.request.headers) |
|
1001 |
|
|
1002 |
send_headers[HTTP_HOST] = "%s:%s" % (self.request.host, self.request.port) |
|
1003 |
|
|
1004 |
if self.request.post_data: |
|
1005 |
send_headers[HTTP_CONTENT_LENGTH] = len(self.request.post_data) |
|
1006 |
|
|
1007 |
buf = StringIO() |
|
1008 |
|
|
1009 |
# Add request line. We only support HTTP/1.0 (no chunked transfers and no |
|
1010 |
# keep-alive). |
|
1011 |
# TODO: For keep-alive, change to HTTP/1.1 |
|
1012 |
buf.write("%s %s %s\r\n" % (self.request.method.upper(), |
|
1013 |
self.request.path, HTTP_1_0)) |
|
1014 |
|
|
1015 |
# Add headers |
|
1016 |
for name, value in send_headers.iteritems(): |
|
1017 |
buf.write("%s: %s\r\n" % (name, value)) |
|
1018 |
|
|
1019 |
buf.write("\r\n") |
|
1020 |
|
|
1021 |
if self.request.post_data: |
|
1022 |
buf.write(self.request.post_data) |
|
1023 |
|
|
1024 |
return buf.getvalue() |
|
1025 |
|
|
1026 |
def _ParseStatusLine(self): |
|
1027 |
"""Parses the status line sent by the server. |
|
1028 |
|
|
1029 |
""" |
|
1030 |
line = self.request.resp_status_line |
|
1031 |
|
|
1032 |
if not line: |
|
1033 |
raise _HttpClientError("Empty status line") |
|
1034 |
|
|
1035 |
try: |
|
1036 |
[version, status, reason] = line.split(None, 2) |
|
1037 |
except ValueError: |
|
1038 |
try: |
|
1039 |
[version, status] = line.split(None, 1) |
|
1040 |
reason = "" |
|
1041 |
except ValueError: |
|
1042 |
version = HTTP_9_0 |
|
1043 |
|
|
1044 |
if version: |
|
1045 |
version = version.upper() |
|
1046 |
|
|
1047 |
if version not in (HTTP_1_0, HTTP_1_1): |
|
1048 |
# We do not support HTTP/0.9, despite the specification requiring it |
|
1049 |
# (RFC2616, section 19.6) |
|
1050 |
raise _HttpClientError("Only HTTP/1.0 and HTTP/1.1 are supported (%r)" % |
|
1051 |
line) |
|
1052 |
|
|
1053 |
# The status code is a three-digit number |
|
1054 |
try: |
|
1055 |
status = int(status) |
|
1056 |
if status < 100 or status > 999: |
|
1057 |
status = -1 |
|
1058 |
except ValueError: |
|
1059 |
status = -1 |
|
1060 |
|
|
1061 |
if status == -1: |
|
1062 |
raise _HttpClientError("Invalid status code (%r)" % line) |
|
1063 |
|
|
1064 |
self.request.resp_version = version |
|
1065 |
self.request.resp_status = status |
|
1066 |
self.request.resp_reason = reason |
|
1067 |
|
|
1068 |
def _WillServerCloseConnection(self): |
|
1069 |
"""Evaluate whether server will close the connection. |
|
1070 |
|
|
1071 |
@rtype: bool |
|
1072 |
@return: Whether server will close the connection |
|
1073 |
|
|
1074 |
""" |
|
1075 |
hdr_connection = self.request.resp_headers.get(HTTP_CONNECTION, None) |
|
1076 |
if hdr_connection: |
|
1077 |
hdr_connection = hdr_connection.lower() |
|
1078 |
|
|
1079 |
# An HTTP/1.1 server is assumed to stay open unless explicitly closed. |
|
1080 |
if self.request.resp_version == HTTP_1_1: |
|
1081 |
return (hdr_connection and "close" in hdr_connection) |
|
1082 |
|
|
1083 |
# Some HTTP/1.0 implementations have support for persistent connections, |
|
1084 |
# using rules different than HTTP/1.1. |
|
1085 |
|
|
1086 |
# For older HTTP, Keep-Alive indicates persistent connection. |
|
1087 |
if self.request.resp_headers.get(HTTP_KEEP_ALIVE): |
|
1088 |
return False |
|
1089 |
|
|
1090 |
# At least Akamai returns a "Connection: Keep-Alive" header, which was |
|
1091 |
# supposed to be sent by the client. |
|
1092 |
if hdr_connection and "keep-alive" in hdr_connection: |
|
1093 |
return False |
|
1094 |
|
|
1095 |
return True |
|
1096 |
|
|
1097 |
def _ParseHeaders(self): |
|
1098 |
"""Parses the headers sent by the server. |
|
1099 |
|
|
1100 |
This function also adjusts internal variables based on the header values. |
|
1101 |
|
|
1102 |
""" |
|
1103 |
req = self.request |
|
1104 |
|
|
1105 |
# Parse headers |
|
1106 |
self.header_buffer.seek(0, 0) |
|
1107 |
req.resp_headers = mimetools.Message(self.header_buffer, 0) |
|
1108 |
|
|
1109 |
self.server_will_close = self._WillServerCloseConnection() |
|
1110 |
|
|
1111 |
# Do we have a Content-Length header? |
|
1112 |
hdr_content_length = req.resp_headers.get(HTTP_CONTENT_LENGTH, None) |
|
1113 |
if hdr_content_length: |
|
1114 |
try: |
|
1115 |
self.content_length = int(hdr_content_length) |
|
1116 |
except ValueError: |
|
1117 |
pass |
|
1118 |
if self.content_length is not None and self.content_length < 0: |
|
1119 |
self.content_length = None |
|
1120 |
|
|
1121 |
# does the body have a fixed length? (of zero) |
|
1122 |
if (req.resp_status in (HTTP_NO_CONTENT, HTTP_NOT_MODIFIED) or |
|
1123 |
100 <= req.resp_status < 200 or req.method == HTTP_HEAD): |
|
1124 |
self.content_length = 0 |
|
1125 |
|
|
1126 |
# if the connection remains open and a content-length was not provided, |
|
1127 |
# then assume that the connection WILL close. |
|
1128 |
if self.content_length is None: |
|
1129 |
self.server_will_close = True |
|
1130 |
|
|
1131 |
def _CheckStatusLineLength(self, length): |
|
1132 |
if length > self.STATUS_LINE_LENGTH_MAX: |
|
1133 |
raise _HttpClientError("Status line longer than %d chars" % |
|
1134 |
self.STATUS_LINE_LENGTH_MAX) |
|
1135 |
|
|
1136 |
def _CheckHeaderLength(self, length): |
|
1137 |
if length > self.HEADER_LENGTH_MAX: |
|
1138 |
raise _HttpClientError("Headers longer than %d chars" % |
|
1139 |
self.HEADER_LENGTH_MAX) |
|
1140 |
|
|
1141 |
def _ParseBuffer(self, buf, eof): |
|
1142 |
"""Main function for HTTP response state machine. |
|
1143 |
|
|
1144 |
@type buf: string |
|
1145 |
@param buf: Receive buffer |
|
1146 |
@type eof: bool |
|
1147 |
@param eof: Whether we've reached EOF on the socket |
|
1148 |
@rtype: string |
|
1149 |
@return: Updated receive buffer |
|
1150 |
|
|
1151 |
""" |
|
1152 |
if self.parser_status == self.PS_STATUS_LINE: |
|
1153 |
# Expect status line |
|
1154 |
idx = buf.find("\r\n") |
|
1155 |
if idx >= 0: |
|
1156 |
self.request.resp_status_line = buf[:idx] |
|
1157 |
|
|
1158 |
self._CheckStatusLineLength(len(self.request.resp_status_line)) |
|
1159 |
|
|
1160 |
# Remove status line, including CRLF |
|
1161 |
buf = buf[idx + 2:] |
|
1162 |
|
|
1163 |
self._ParseStatusLine() |
|
1164 |
|
|
1165 |
self.parser_status = self.PS_HEADERS |
|
1166 |
else: |
|
1167 |
# Check whether incoming data is getting too large, otherwise we just |
|
1168 |
# fill our read buffer. |
|
1169 |
self._CheckStatusLineLength(len(buf)) |
|
1170 |
|
|
1171 |
if self.parser_status == self.PS_HEADERS: |
|
1172 |
# Wait for header end |
|
1173 |
idx = buf.find("\r\n\r\n") |
|
1174 |
if idx >= 0: |
|
1175 |
self.header_buffer.write(buf[:idx + 2]) |
|
1176 |
|
|
1177 |
self._CheckHeaderLength(self.header_buffer.tell()) |
|
1178 |
|
|
1179 |
# Remove headers, including CRLF |
|
1180 |
buf = buf[idx + 4:] |
|
1181 |
|
|
1182 |
self._ParseHeaders() |
|
1183 |
|
|
1184 |
self.parser_status = self.PS_BODY |
|
1185 |
else: |
|
1186 |
# Check whether incoming data is getting too large, otherwise we just |
|
1187 |
# fill our read buffer. |
|
1188 |
self._CheckHeaderLength(len(buf)) |
|
1189 |
|
|
1190 |
if self.parser_status == self.PS_BODY: |
|
1191 |
self.body_buffer.write(buf) |
|
1192 |
buf = "" |
|
1193 |
|
|
1194 |
# Check whether we've read everything |
|
1195 |
if (eof or |
|
1196 |
(self.content_length is not None and |
|
1197 |
self.body_buffer.tell() >= self.content_length)): |
|
1198 |
self.parser_status = self.PS_COMPLETE |
|
1199 |
|
|
1200 |
return buf |
|
1201 |
|
|
1202 |
def _Connect(self): |
|
1203 |
"""Non-blocking connect to host with timeout. |
|
1204 |
|
|
1205 |
""" |
|
1206 |
connected = False |
|
1207 |
while True: |
|
1208 |
try: |
|
1209 |
connect_error = self.sock.connect_ex((self.request.host, |
|
1210 |
self.request.port)) |
|
1211 |
except socket.gaierror, err: |
|
1212 |
raise _HttpClientError("Connection failed: %s" % str(err)) |
|
1213 |
|
|
1214 |
if connect_error == errno.EINTR: |
|
1215 |
# Mask signals |
|
1216 |
pass |
|
1217 |
|
|
1218 |
elif connect_error == 0: |
|
1219 |
# Connection established |
|
1220 |
connected = True |
|
1221 |
break |
|
1222 |
|
|
1223 |
elif connect_error == errno.EINPROGRESS: |
|
1224 |
# Connection started |
|
1225 |
break |
|
1226 |
|
|
1227 |
raise _HttpClientError("Connection failed (%s: %s)" % |
|
1228 |
(connect_error, os.strerror(connect_error))) |
|
1229 |
|
|
1230 |
if not connected: |
|
1231 |
# Wait for connection |
|
1232 |
event = WaitForSocketCondition(self.poller, self.sock, |
|
1233 |
select.POLLOUT, self.CONNECT_TIMEOUT) |
|
1234 |
if event is None: |
|
1235 |
raise _HttpClientError("Timeout while connecting to server") |
|
1236 |
|
|
1237 |
# Get error code |
|
1238 |
connect_error = self.sock.getsockopt(socket.SOL_SOCKET, socket.SO_ERROR) |
|
1239 |
if connect_error != 0: |
|
1240 |
raise _HttpClientError("Connection failed (%s: %s)" % |
|
1241 |
(connect_error, os.strerror(connect_error))) |
|
1242 |
|
|
1243 |
# Enable TCP keep-alive |
|
1244 |
self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1) |
|
1245 |
|
|
1246 |
# If needed, Linux specific options are available to change the TCP |
|
1247 |
# keep-alive settings, see "man 7 tcp" for TCP_KEEPCNT, TCP_KEEPIDLE and |
|
1248 |
# TCP_KEEPINTVL. |
|
1249 |
|
|
1250 |
def _SendRequest(self): |
|
1251 |
"""Sends request to server. |
|
1252 |
|
|
1253 |
""" |
|
1254 |
buf = self._BuildRequest() |
|
1255 |
|
|
1256 |
while buf: |
|
1257 |
# Send only 4 KB at a time |
|
1258 |
data = buf[:4096] |
|
1259 |
|
|
1260 |
try: |
|
1261 |
sent = SocketOperation(self.poller, self.sock, SOCKOP_SEND, data, |
|
1262 |
self.WRITE_TIMEOUT) |
|
1263 |
except HttpSocketTimeout: |
|
1264 |
raise _HttpClientError("Timeout while sending request") |
|
1265 |
except socket.error, err: |
|
1266 |
raise _HttpClientError("Error sending request: %s" % err) |
|
1267 |
|
|
1268 |
# Remove sent bytes |
|
1269 |
buf = buf[sent:] |
|
1270 |
|
|
1271 |
assert not buf, "Request wasn't sent completely" |
|
1272 |
|
|
1273 |
def _ReadResponse(self): |
|
1274 |
"""Read response from server. |
|
1275 |
|
|
1276 |
Calls the parser function after reading a chunk of data. |
|
1277 |
|
|
1278 |
""" |
|
1279 |
buf = "" |
|
1280 |
eof = False |
|
1281 |
while self.parser_status != self.PS_COMPLETE: |
|
1282 |
try: |
|
1283 |
data = SocketOperation(self.poller, self.sock, SOCKOP_RECV, 4096, |
|
1284 |
self.READ_TIMEOUT) |
|
1285 |
except HttpSocketTimeout: |
|
1286 |
raise _HttpClientError("Timeout while reading response") |
|
1287 |
except socket.error, err: |
|
1288 |
raise _HttpClientError("Error while reading response: %s" % err) |
|
1289 |
|
|
1290 |
if data: |
|
1291 |
buf += data |
|
1292 |
else: |
|
1293 |
eof = True |
|
1294 |
|
|
1295 |
# Do some parsing and error checking while more data arrives |
|
1296 |
buf = self._ParseBuffer(buf, eof) |
|
1297 |
|
|
1298 |
# Must be done only after the buffer has been evaluated |
|
1299 |
if (eof and |
|
1300 |
self.parser_status in (self.PS_STATUS_LINE, |
|
1301 |
self.PS_HEADERS)): |
|
1302 |
raise _HttpClientError("Connection closed prematurely") |
|
1303 |
|
|
1304 |
# Parse rest |
|
1305 |
buf = self._ParseBuffer(buf, True) |
|
1306 |
|
|
1307 |
assert self.parser_status == self.PS_COMPLETE |
|
1308 |
assert not buf, "Parser didn't read full response" |
|
1309 |
|
|
1310 |
def _CloseConnection(self, force): |
|
1311 |
"""Closes the connection. |
|
1312 |
|
|
1313 |
""" |
|
1314 |
if self.server_will_close and not force: |
|
1315 |
# Wait for server to close |
|
1316 |
try: |
|
1317 |
# Check whether it's actually closed |
|
1318 |
if not SocketOperation(self.poller, self.sock, SOCKOP_RECV, 1, |
|
1319 |
self.CLOSE_TIMEOUT): |
|
1320 |
return |
|
1321 |
except (socket.error, _HttpClientError, HttpSocketTimeout): |
|
1322 |
# Ignore errors at this stage |
|
1323 |
pass |
|
1324 |
|
|
1325 |
# Close the connection from our side |
|
1326 |
try: |
|
1327 |
SocketOperation(self.poller, self.sock, SOCKOP_SHUTDOWN, |
|
1328 |
socket.SHUT_RDWR, self.WRITE_TIMEOUT) |
|
1329 |
except HttpSocketTimeout: |
|
1330 |
raise _HttpClientError("Timeout while shutting down connection") |
|
1331 |
except socket.error, err: |
|
1332 |
raise _HttpClientError("Error while shutting down connection: %s" % err) |
|
1333 |
|
|
1334 |
|
|
1335 |
class _HttpClientPendingRequest(object): |
|
1336 |
"""Data class for pending requests. |
|
1337 |
|
|
1338 |
""" |
|
1339 |
def __init__(self, request): |
|
1340 |
self.request = request |
|
1341 |
|
|
1342 |
# Thread synchronization |
|
1343 |
self.done = threading.Event() |
|
1344 |
|
|
1345 |
|
|
1346 |
class HttpClientWorker(workerpool.BaseWorker): |
|
1347 |
"""HTTP client worker class. |
|
1348 |
|
|
1349 |
""" |
|
1350 |
def RunTask(self, pend_req): |
|
1351 |
try: |
|
1352 |
HttpClientRequestExecutor(pend_req.request) |
|
1353 |
finally: |
|
1354 |
pend_req.done.set() |
|
1355 |
|
|
1356 |
|
|
1357 |
class HttpClientWorkerPool(workerpool.WorkerPool): |
|
1358 |
def __init__(self, manager): |
|
1359 |
workerpool.WorkerPool.__init__(self, HTTP_CLIENT_THREADS, |
|
1360 |
HttpClientWorker) |
|
1361 |
self.manager = manager |
|
1362 |
|
|
1363 |
|
|
1364 |
class HttpClientManager(object): |
|
1365 |
"""Manages HTTP requests. |
|
1366 |
|
|
1367 |
""" |
|
1368 |
def __init__(self): |
|
1369 |
self._wpool = HttpClientWorkerPool(self) |
|
1370 |
|
|
1371 |
def __del__(self): |
|
1372 |
self.Shutdown() |
|
1373 |
|
|
1374 |
def ExecRequests(self, requests): |
|
1375 |
"""Execute HTTP requests. |
|
1376 |
|
|
1377 |
This function can be called from multiple threads at the same time. |
|
1378 |
|
|
1379 |
@type requests: List of HttpClientRequest instances |
|
1380 |
@param requests: The requests to execute |
|
1381 |
@rtype: List of HttpClientRequest instances |
|
1382 |
@returns: The list of requests passed in |
|
1383 |
|
|
1384 |
""" |
|
1385 |
# _HttpClientPendingRequest is used for internal thread synchronization |
|
1386 |
pending = [_HttpClientPendingRequest(req) for req in requests] |
|
1387 |
|
|
1388 |
try: |
|
1389 |
# Add requests to queue |
|
1390 |
for pend_req in pending: |
|
1391 |
self._wpool.AddTask(pend_req) |
|
1392 |
|
|
1393 |
finally: |
|
1394 |
# In case of an exception we should still wait for the rest, otherwise |
|
1395 |
# another thread from the worker pool could modify the request object |
|
1396 |
# after we returned. |
|
1397 |
|
|
1398 |
# And wait for them to finish |
|
1399 |
for pend_req in pending: |
|
1400 |
pend_req.done.wait() |
|
1401 |
|
|
1402 |
# Return original list |
|
1403 |
return requests |
|
1404 |
|
|
1405 |
def Shutdown(self): |
|
1406 |
self._wpool.Quiesce() |
|
1407 |
self._wpool.TerminateWorkers() |
|
1408 |
|
|
1409 |
|
|
1410 |
class _SSLFileObject(object): |
|
1411 |
"""Wrapper around socket._fileobject |
|
1412 |
|
|
1413 |
This wrapper is required to handle OpenSSL exceptions. |
|
1414 |
|
|
1415 |
""" |
|
1416 |
def _RequireOpenSocket(fn): |
|
1417 |
def wrapper(self, *args, **kwargs): |
|
1418 |
if self.closed: |
|
1419 |
raise SocketClosed("Socket is closed") |
|
1420 |
return fn(self, *args, **kwargs) |
|
1421 |
return wrapper |
|
1422 |
|
|
1423 |
def __init__(self, sock, mode='rb', bufsize=-1): |
|
1424 |
self._base = socket._fileobject(sock, mode=mode, bufsize=bufsize) |
|
1425 |
|
|
1426 |
def _ConnectionLost(self): |
|
1427 |
self._base = None |
|
1428 |
|
|
1429 |
def _getclosed(self): |
|
1430 |
return self._base is None or self._base.closed |
|
1431 |
closed = property(_getclosed, doc="True if the file is closed") |
|
1432 |
|
|
1433 |
@_RequireOpenSocket |
|
1434 |
def close(self): |
|
1435 |
return self._base.close() |
|
1436 |
|
|
1437 |
@_RequireOpenSocket |
|
1438 |
def flush(self): |
|
1439 |
return self._base.flush() |
|
1440 |
|
|
1441 |
@_RequireOpenSocket |
|
1442 |
def fileno(self): |
|
1443 |
return self._base.fileno() |
|
1444 |
|
|
1445 |
@_RequireOpenSocket |
|
1446 |
def read(self, size=-1): |
|
1447 |
return self._ReadWrapper(self._base.read, size=size) |
|
1448 |
|
|
1449 |
@_RequireOpenSocket |
|
1450 |
def readline(self, size=-1): |
|
1451 |
return self._ReadWrapper(self._base.readline, size=size) |
|
1452 |
|
|
1453 |
def _ReadWrapper(self, fn, *args, **kwargs): |
|
1454 |
while True: |
|
1455 |
try: |
|
1456 |
return fn(*args, **kwargs) |
|
1457 |
|
|
1458 |
except OpenSSL.SSL.ZeroReturnError, err: |
|
1459 |
self._ConnectionLost() |
|
1460 |
return "" |
|
1461 |
|
|
1462 |
except OpenSSL.SSL.WantReadError: |
|
1463 |
continue |
|
1464 |
|
|
1465 |
#except OpenSSL.SSL.WantWriteError: |
|
1466 |
# TODO |
|
1467 |
|
|
1468 |
except OpenSSL.SSL.SysCallError, (retval, desc): |
|
1469 |
if ((retval == -1 and desc == _SSL_UNEXPECTED_EOF) |
|
1470 |
or retval > 0): |
|
1471 |
self._ConnectionLost() |
|
1472 |
return "" |
|
1473 |
|
|
1474 |
logging.exception("Error in OpenSSL") |
|
1475 |
self._ConnectionLost() |
|
1476 |
raise socket.error(err.args) |
|
1477 |
|
|
1478 |
except OpenSSL.SSL.Error, err: |
|
1479 |
self._ConnectionLost() |
|
1480 |
raise socket.error(err.args) |
|
1481 |
|
|
1482 |
@_RequireOpenSocket |
|
1483 |
def write(self, data): |
|
1484 |
return self._WriteWrapper(self._base.write, data) |
|
1485 |
|
|
1486 |
def _WriteWrapper(self, fn, *args, **kwargs): |
|
1487 |
while True: |
|
1488 |
try: |
|
1489 |
return fn(*args, **kwargs) |
|
1490 |
except OpenSSL.SSL.ZeroReturnError, err: |
|
1491 |
self._ConnectionLost() |
|
1492 |
return 0 |
|
1493 |
|
|
1494 |
except OpenSSL.SSL.WantWriteError: |
|
1495 |
continue |
|
1496 |
|
|
1497 |
#except OpenSSL.SSL.WantReadError: |
|
1498 |
# TODO |
|
1499 |
|
|
1500 |
except OpenSSL.SSL.SysCallError, err: |
|
1501 |
if err.args[0] == -1 and data == "": |
|
1502 |
# errors when writing empty strings are expected |
|
1503 |
# and can be ignored |
|
1504 |
return 0 |
|
1505 |
|
|
1506 |
self._ConnectionLost() |
|
1507 |
raise socket.error(err.args) |
|
1508 |
|
|
1509 |
except OpenSSL.SSL.Error, err: |
|
1510 |
self._ConnectionLost() |
|
1511 |
raise socket.error(err.args) |
|
1512 |
|
|
1513 |
|
|
1514 | 422 |
class HttpMessage(object): |
1515 | 423 |
"""Data structure for HTTP message. |
1516 | 424 |
|
Also available in: Unified diff