mercurial-scm/hg-stable: mercurial/wireprotoserver.py annotate

annotate mercurial/wireprotoserver.py @ 36552:e7411fb7ba7f

wireprotoserver: ability to run an SSH server until an event is set It seems useful to be able to start an SSH protocol server that won't run forever and won't call sys.exit() when it stops. This could be used to facilitate intra-process testing of the SSH protocol, for example. We teach the server function to loop until a threading.Event is set and invent a new API to run the server until an event is set. It also won't sys.exit() afterwards. There aren't many callers of serve_forever(). So we could refactor them relatively easily. But I was lazy. threading.Event might be a bit heavyweight. An alternative would be a list whose only elements is changed. We can't use a simple scalar value like a bool or int because those types are immutable. Events are what you use in systems programming for this use case, so the use of threading.Event seems justified. Differential Revision: https://phab.mercurial-scm.org/D2461

author	Gregory Szorc <gregory.szorc@gmail.com>
date	Sat, 24 Feb 2018 12:07:21 -0800
parents	b8d0761a85c7
children	7cc4a9b9732a

rev	line source
5598 d534ba1c4eb4 separate the wire protocol commands from the user interface commands Dirkjan Ochtman <dirkjan@ochtman.nl> parents: diff changeset	1 # Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net>
d534ba1c4eb4 separate the wire protocol commands from the user interface commands Dirkjan Ochtman <dirkjan@ochtman.nl> parents: diff changeset	2 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
d534ba1c4eb4 separate the wire protocol commands from the user interface commands Dirkjan Ochtman <dirkjan@ochtman.nl> parents: diff changeset	3 #
8225 46293a0c7e9f updated license to be explicit about GPL version 2 Martin Geisler <mg@lazybytes.net> parents: 8109 diff changeset	4 # This software may be used and distributed according to the terms of the
10263 25e572394f5c Update license to GPLv2+ Matt Mackall <mpm@selenic.com> parents: 9713 diff changeset	5 # GNU General Public License version 2 or any later version.
5598 d534ba1c4eb4 separate the wire protocol commands from the user interface commands Dirkjan Ochtman <dirkjan@ochtman.nl> parents: diff changeset	6
27046 37fcfe52c68c hgweb: use absolute_import Yuya Nishihara <yuya@tcha.org> parents: 20903 diff changeset	7 from __future__ import absolute_import
37fcfe52c68c hgweb: use absolute_import Yuya Nishihara <yuya@tcha.org> parents: 20903 diff changeset	8
36104 2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	9 import contextlib
30764 e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	10 import struct
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	11 import sys
36552 e7411fb7ba7f wireprotoserver: ability to run an SSH server until an event is set Gregory Szorc <gregory.szorc@gmail.com> parents: 36403 diff changeset	12 import threading
27046 37fcfe52c68c hgweb: use absolute_import Yuya Nishihara <yuya@tcha.org> parents: 20903 diff changeset	13
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	14 from .i18n import _
35896 ef3a24a023ec wireprotoserver: rename hgweb.protocol to wireprotoserver (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35750 diff changeset	15 from . import (
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	16 encoding,
34509 e21f274cccea hgweb: in protocol adapter, avoid control reaching end of non-void function Augie Fackler <augie@google.com> parents: 33842 diff changeset	17 error,
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	18 hook,
34742 5a9cad0dfddb hgweb: when unpacking args from request form, convert to bytes Augie Fackler <augie@google.com> parents: 34740 diff changeset	19 pycompat,
27046 37fcfe52c68c hgweb: use absolute_import Yuya Nishihara <yuya@tcha.org> parents: 20903 diff changeset	20 util,
37fcfe52c68c hgweb: use absolute_import Yuya Nishihara <yuya@tcha.org> parents: 20903 diff changeset	21 wireproto,
36111 cd6ab329c5c7 wireprototypes: move wire protocol response types to new module Gregory Szorc <gregory.szorc@gmail.com> parents: 36110 diff changeset	22 wireprototypes,
27046 37fcfe52c68c hgweb: use absolute_import Yuya Nishihara <yuya@tcha.org> parents: 20903 diff changeset	23 )
35896 ef3a24a023ec wireprotoserver: rename hgweb.protocol to wireprotoserver (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35750 diff changeset	24
28861 86db5cb55d46 pycompat: switch to util.stringio for py3 compat timeless <timeless@mozdev.org> parents: 28530 diff changeset	25 stringio = util.stringio
5963 5be210afe1b8 hgweb: explicitly check if requested command exists Dirkjan Ochtman <dirkjan@ochtman.nl> parents: 5915 diff changeset	26
28883 032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat timeless <timeless@mozdev.org> parents: 28861 diff changeset	27 urlerr = util.urlerr
032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat timeless <timeless@mozdev.org> parents: 28861 diff changeset	28 urlreq = util.urlreq
032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat timeless <timeless@mozdev.org> parents: 28861 diff changeset	29
35898 1b76a9e0a9de wireprotoserver: don't import symbol from hgweb.common Gregory Szorc <gregory.szorc@gmail.com> parents: 35897 diff changeset	30 HTTP_OK = 200
1b76a9e0a9de wireprotoserver: don't import symbol from hgweb.common Gregory Szorc <gregory.szorc@gmail.com> parents: 35897 diff changeset	31
5993 948a41e77902 hgweb: explicit response status Dirkjan Ochtman <dirkjan@ochtman.nl> parents: 5963 diff changeset	32 HGTYPE = 'application/mercurial-0.1'
30764 e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	33 HGTYPE2 = 'application/mercurial-0.2'
15017 f4522df38c65 wireproto: add out-of-band error class to allow remote repo to report errors Andrew Pritchard <andrewp@fogcreek.com> parents: 14614 diff changeset	34 HGERRTYPE = 'application/hg-error'
11595 368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	35
36015 48a3a9283f09 sshpeer: initial definition and implementation of new SSH protocol Gregory Szorc <gregory.szorc@gmail.com> parents: 35940 diff changeset	36 # Names of the SSH protocol implementations.
48a3a9283f09 sshpeer: initial definition and implementation of new SSH protocol Gregory Szorc <gregory.szorc@gmail.com> parents: 35940 diff changeset	37 SSHV1 = 'ssh-v1'
48a3a9283f09 sshpeer: initial definition and implementation of new SSH protocol Gregory Szorc <gregory.szorc@gmail.com> parents: 35940 diff changeset	38 # This is advertised over the wire. Incremental the counter at the end
48a3a9283f09 sshpeer: initial definition and implementation of new SSH protocol Gregory Szorc <gregory.szorc@gmail.com> parents: 35940 diff changeset	39 # to reflect BC breakages.
48a3a9283f09 sshpeer: initial definition and implementation of new SSH protocol Gregory Szorc <gregory.szorc@gmail.com> parents: 35940 diff changeset	40 SSHV2 = 'exp-ssh-v2-0001'
48a3a9283f09 sshpeer: initial definition and implementation of new SSH protocol Gregory Szorc <gregory.szorc@gmail.com> parents: 35940 diff changeset	41
30759 3f5f0c98cd18 httppeer: extract code for HTTP header spanning Gregory Szorc <gregory.szorc@gmail.com> parents: 30567 diff changeset	42 def decodevaluefromheaders(req, headerprefix):
34744 0a2ef612ad50 hgweb: fix decodevaluefromheaders to always return a bytes value Augie Fackler <augie@google.com> parents: 34743 diff changeset	43 """Decode a long value from multiple HTTP request headers.
0a2ef612ad50 hgweb: fix decodevaluefromheaders to always return a bytes value Augie Fackler <augie@google.com> parents: 34743 diff changeset	44
0a2ef612ad50 hgweb: fix decodevaluefromheaders to always return a bytes value Augie Fackler <augie@google.com> parents: 34743 diff changeset	45 Returns the value as a bytes, not a str.
0a2ef612ad50 hgweb: fix decodevaluefromheaders to always return a bytes value Augie Fackler <augie@google.com> parents: 34743 diff changeset	46 """
30759 3f5f0c98cd18 httppeer: extract code for HTTP header spanning Gregory Szorc <gregory.szorc@gmail.com> parents: 30567 diff changeset	47 chunks = []
3f5f0c98cd18 httppeer: extract code for HTTP header spanning Gregory Szorc <gregory.szorc@gmail.com> parents: 30567 diff changeset	48 i = 1
34744 0a2ef612ad50 hgweb: fix decodevaluefromheaders to always return a bytes value Augie Fackler <augie@google.com> parents: 34743 diff changeset	49 prefix = headerprefix.upper().replace(r'-', r'_')
30759 3f5f0c98cd18 httppeer: extract code for HTTP header spanning Gregory Szorc <gregory.szorc@gmail.com> parents: 30567 diff changeset	50 while True:
34744 0a2ef612ad50 hgweb: fix decodevaluefromheaders to always return a bytes value Augie Fackler <augie@google.com> parents: 34743 diff changeset	51 v = req.env.get(r'HTTP_%s_%d' % (prefix, i))
30759 3f5f0c98cd18 httppeer: extract code for HTTP header spanning Gregory Szorc <gregory.szorc@gmail.com> parents: 30567 diff changeset	52 if v is None:
3f5f0c98cd18 httppeer: extract code for HTTP header spanning Gregory Szorc <gregory.szorc@gmail.com> parents: 30567 diff changeset	53 break
34744 0a2ef612ad50 hgweb: fix decodevaluefromheaders to always return a bytes value Augie Fackler <augie@google.com> parents: 34743 diff changeset	54 chunks.append(pycompat.bytesurl(v))
30759 3f5f0c98cd18 httppeer: extract code for HTTP header spanning Gregory Szorc <gregory.szorc@gmail.com> parents: 30567 diff changeset	55 i += 1
3f5f0c98cd18 httppeer: extract code for HTTP header spanning Gregory Szorc <gregory.szorc@gmail.com> parents: 30567 diff changeset	56
3f5f0c98cd18 httppeer: extract code for HTTP header spanning Gregory Szorc <gregory.szorc@gmail.com> parents: 30567 diff changeset	57 return ''.join(chunks)
3f5f0c98cd18 httppeer: extract code for HTTP header spanning Gregory Szorc <gregory.szorc@gmail.com> parents: 30567 diff changeset	58
36402 0c231df1ffdc wireprototypes: move baseprotocolhandler from wireprotoserver Gregory Szorc <gregory.szorc@gmail.com> parents: 36313 diff changeset	59 class httpv1protocolhandler(wireprototypes.baseprotocolhandler):
14614 afccc64eea73 ui: use I/O descriptors internally Idan Kamara <idankk86@gmail.com> parents: 14494 diff changeset	60 def __init__(self, req, ui):
35906 d747cf39cf70 wireprotoserver: make attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35905 diff changeset	61 self._req = req
d747cf39cf70 wireprotoserver: make attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35905 diff changeset	62 self._ui = ui
35913 29759c46aa1a wireprotoserver: make name part of protocol interface Gregory Szorc <gregory.szorc@gmail.com> parents: 35912 diff changeset	63
29759c46aa1a wireprotoserver: make name part of protocol interface Gregory Szorc <gregory.szorc@gmail.com> parents: 35912 diff changeset	64 @property
29759c46aa1a wireprotoserver: make name part of protocol interface Gregory Szorc <gregory.szorc@gmail.com> parents: 35912 diff changeset	65 def name(self):
36261 2e07dc514073 wireprotoserver: add version to HTTP protocol name (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36260 diff changeset	66 return 'http-v1'
30567 b3a9ef3d30e8 protocol: declare transport protocol name Gregory Szorc <gregory.szorc@gmail.com> parents: 30475 diff changeset	67
11595 368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	68 def getargs(self, args):
14093 ce99d887585f httprepo: long arguments support (issue2126) Steven Brown <StevenGBrown@gmail.com> parents: 13721 diff changeset	69 knownargs = self._args()
11595 368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	70 data = {}
368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	71 keys = args.split()
368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	72 for k in keys:
368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	73 if k == '*':
368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	74 star = {}
14093 ce99d887585f httprepo: long arguments support (issue2126) Steven Brown <StevenGBrown@gmail.com> parents: 13721 diff changeset	75 for key in knownargs.keys():
13721 3458c15ab2f0 wireproto: fix handling of '' args for HTTP and SSH Peter Arrenbrecht <peter.arrenbrecht@gmail.com>* parents: 12704 diff changeset	76 if key != 'cmd' and key not in keys:
14093 ce99d887585f httprepo: long arguments support (issue2126) Steven Brown <StevenGBrown@gmail.com> parents: 13721 diff changeset	77 star[key] = knownargs[key][0]
11595 368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	78 data['*'] = star
368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	79 else:
14093 ce99d887585f httprepo: long arguments support (issue2126) Steven Brown <StevenGBrown@gmail.com> parents: 13721 diff changeset	80 data[k] = knownargs[k][0]
11595 368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	81 return [data[k] for k in keys]
35903 49426bb4476c wireprotoserver: add some blank lines between methods Gregory Szorc <gregory.szorc@gmail.com> parents: 35900 diff changeset	82
14093 ce99d887585f httprepo: long arguments support (issue2126) Steven Brown <StevenGBrown@gmail.com> parents: 13721 diff changeset	83 def _args(self):
35940 72de5c504833 py3: factor out helpers to apply string conversion recursively Yuya Nishihara <yuya@tcha.org> parents: 35913 diff changeset	84 args = util.rapply(pycompat.bytesurl, self._req.form.copy())
35906 d747cf39cf70 wireprotoserver: make attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35905 diff changeset	85 postlen = int(self._req.env.get(r'HTTP_X_HGARGS_POST', 0))
28530 fd2acc5046f6 http: support sending hgargs via POST body instead of in GET or headers Augie Fackler <augie@google.com> parents: 27046 diff changeset	86 if postlen:
36115 a3d42d1865f1 wireprotoserver: define and use parse_qs from urllib Gregory Szorc <gregory.szorc@gmail.com> parents: 36113 diff changeset	87 args.update(urlreq.parseqs(
35906 d747cf39cf70 wireprotoserver: make attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35905 diff changeset	88 self._req.read(postlen), keep_blank_values=True))
28530 fd2acc5046f6 http: support sending hgargs via POST body instead of in GET or headers Augie Fackler <augie@google.com> parents: 27046 diff changeset	89 return args
30759 3f5f0c98cd18 httppeer: extract code for HTTP header spanning Gregory Szorc <gregory.szorc@gmail.com> parents: 30567 diff changeset	90
35906 d747cf39cf70 wireprotoserver: make attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35905 diff changeset	91 argvalue = decodevaluefromheaders(self._req, r'X-HgArg')
36115 a3d42d1865f1 wireprotoserver: define and use parse_qs from urllib Gregory Szorc <gregory.szorc@gmail.com> parents: 36113 diff changeset	92 args.update(urlreq.parseqs(argvalue, keep_blank_values=True))
14093 ce99d887585f httprepo: long arguments support (issue2126) Steven Brown <StevenGBrown@gmail.com> parents: 13721 diff changeset	93 return args
35903 49426bb4476c wireprotoserver: add some blank lines between methods Gregory Szorc <gregory.szorc@gmail.com> parents: 35900 diff changeset	94
36108 90ca4986616c wireprotoserver: rename getfile() to forwardpayload() (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36107 diff changeset	95 def forwardpayload(self, fp):
36313 685bcdd236b5 wireprotoserver: py3 helpfully calls adds HTTP_ to CONTENT_LENGTH Augie Fackler <augie@google.com> parents: 36291 diff changeset	96 if r'HTTP_CONTENT_LENGTH' in self._req.env:
685bcdd236b5 wireprotoserver: py3 helpfully calls adds HTTP_ to CONTENT_LENGTH Augie Fackler <augie@google.com> parents: 36291 diff changeset	97 length = int(self._req.env[r'HTTP_CONTENT_LENGTH'])
685bcdd236b5 wireprotoserver: py3 helpfully calls adds HTTP_ to CONTENT_LENGTH Augie Fackler <augie@google.com> parents: 36291 diff changeset	98 else:
685bcdd236b5 wireprotoserver: py3 helpfully calls adds HTTP_ to CONTENT_LENGTH Augie Fackler <augie@google.com> parents: 36291 diff changeset	99 length = int(self._req.env[r'CONTENT_LENGTH'])
33842 3c91cc0c5fde httppeer: add support for httppostargs when we're sending a file Augie Fackler <augie@google.com> parents: 33228 diff changeset	100 # If httppostargs is used, we need to read Content-Length
3c91cc0c5fde httppeer: add support for httppostargs when we're sending a file Augie Fackler <augie@google.com> parents: 33228 diff changeset	101 # minus the amount that was consumed by args.
35906 d747cf39cf70 wireprotoserver: make attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35905 diff changeset	102 length -= int(self._req.env.get(r'HTTP_X_HGARGS_POST', 0))
d747cf39cf70 wireprotoserver: make attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35905 diff changeset	103 for s in util.filechunkiter(self._req, limit=length):
11621 e46a8b2331a6 protocol: shuffle server methods to group send methods Dirkjan Ochtman <dirkjan@ochtman.nl> parents: 11618 diff changeset	104 fp.write(s)
35903 49426bb4476c wireprotoserver: add some blank lines between methods Gregory Szorc <gregory.szorc@gmail.com> parents: 35900 diff changeset	105
36104 2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	106 @contextlib.contextmanager
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	107 def mayberedirectstdio(self):
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	108 oldout = self._ui.fout
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	109 olderr = self._ui.ferr
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	110
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	111 out = util.stringio()
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	112
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	113 try:
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	114 self._ui.fout = out
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	115 self._ui.ferr = out
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	116 yield out
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	117 finally:
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	118 self._ui.fout = oldout
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	119 self._ui.ferr = olderr
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	120
36107 957e773614d0 wireprotoserver: rename _client to client (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36106 diff changeset	121 def client(self):
11595 368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	122 return 'remote:%s:%s:%s' % (
35906 d747cf39cf70 wireprotoserver: make attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35905 diff changeset	123 self._req.env.get('wsgi.url_scheme') or 'http',
d747cf39cf70 wireprotoserver: make attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35905 diff changeset	124 urlreq.quote(self._req.env.get('REMOTE_HOST', '')),
d747cf39cf70 wireprotoserver: make attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35905 diff changeset	125 urlreq.quote(self._req.env.get('REMOTE_USER', '')))
11595 368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	126
36269 72812ad205d1 wireprotoserver: return to using iscmd() method Augie Fackler <augie@google.com> parents: 36261 diff changeset	127 # This method exists mostly so that extensions like remotefilelog can
72812ad205d1 wireprotoserver: return to using iscmd() method Augie Fackler <augie@google.com> parents: 36261 diff changeset	128 # disable a kludgey legacy method only over http. As of early 2018,
72812ad205d1 wireprotoserver: return to using iscmd() method Augie Fackler <augie@google.com> parents: 36261 diff changeset	129 # there are no other known users, so with any luck we can discard this
72812ad205d1 wireprotoserver: return to using iscmd() method Augie Fackler <augie@google.com> parents: 36261 diff changeset	130 # hook if remotefilelog becomes a first-party extension.
11595 368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	131 def iscmd(cmd):
368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	132 return cmd in wireproto.commands
368cd5325348 protocol: move hgweb protocol support back into protocol.py Matt Mackall <mpm@selenic.com> parents: 11594 diff changeset	133
36023 cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	134 def parsehttprequest(repo, req, query):
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	135 """Parse the HTTP request for a wire protocol request.
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	136
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	137 If the current request appears to be a wire protocol request, this
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	138 function returns a dict with details about that request, including
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	139 an ``abstractprotocolserver`` instance suitable for handling the
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	140 request. Otherwise, ``None`` is returned.
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	141
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	142 ``req`` is a ``wsgirequest`` instance.
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	143 """
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	144 # HTTP version 1 wire protocol requests are denoted by a "cmd" query
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	145 # string parameter. If it isn't present, this isn't a wire protocol
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	146 # request.
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	147 if r'cmd' not in req.form:
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	148 return None
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	149
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	150 cmd = pycompat.sysbytes(req.form[r'cmd'][0])
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	151
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	152 # The "cmd" request parameter is used by both the wire protocol and hgweb.
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	153 # While not all wire protocol commands are available for all transports,
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	154 # if we see a "cmd" value that resembles a known wire protocol command, we
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	155 # route it to a protocol handler. This is better than routing possible
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	156 # wire protocol requests to hgweb because it prevents hgweb from using
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	157 # known wire protocol commands and it is less confusing for machine
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	158 # clients.
36269 72812ad205d1 wireprotoserver: return to using iscmd() method Augie Fackler <augie@google.com> parents: 36261 diff changeset	159 if not iscmd(cmd):
36023 cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	160 return None
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	161
36260 6ba5b03f3645 wireprotoserver: rename webproto to httpv1protocolhandler Gregory Szorc <gregory.szorc@gmail.com> parents: 36253 diff changeset	162 proto = httpv1protocolhandler(req, repo.ui)
30764 e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	163
36023 cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	164 return {
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	165 'cmd': cmd,
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	166 'proto': proto,
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	167 'dispatch': lambda: _callhttp(repo, req, proto, cmd),
36025 98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	168 'handleerror': lambda ex: _handlehttperror(ex, req, cmd),
36023 cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	169 }
cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	170
36110 341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	171 def _httpresponsetype(ui, req, prefer_uncompressed):
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	172 """Determine the appropriate response type and compression settings.
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	173
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	174 Returns a tuple of (mediatype, compengine, engineopts).
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	175 """
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	176 # Determine the response media type and compression engine based
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	177 # on the request parameters.
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	178 protocaps = decodevaluefromheaders(req, r'X-HgProto').split(' ')
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	179
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	180 if '0.2' in protocaps:
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	181 # All clients are expected to support uncompressed data.
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	182 if prefer_uncompressed:
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	183 return HGTYPE2, util._noopengine(), {}
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	184
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	185 # Default as defined by wire protocol spec.
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	186 compformats = ['zlib', 'none']
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	187 for cap in protocaps:
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	188 if cap.startswith('comp='):
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	189 compformats = cap[5:].split(',')
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	190 break
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	191
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	192 # Now find an agreed upon compression format.
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	193 for engine in wireproto.supportedcompengines(ui, util.SERVERROLE):
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	194 if engine.wireprotosupport().name in compformats:
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	195 opts = {}
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	196 level = ui.configint('server', '%slevel' % engine.name())
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	197 if level is not None:
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	198 opts['level'] = level
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	199
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	200 return HGTYPE2, engine, opts
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	201
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	202 # No mutually supported compression format. Fall back to the
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	203 # legacy protocol.
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	204
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	205 # Don't allow untrusted settings because disabling compression or
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	206 # setting a very high compression level could lead to flooding
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	207 # the server's network or CPU.
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	208 opts = {'level': ui.configint('server', 'zliblevel')}
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	209 return HGTYPE, util.compengines['zlib'], opts
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	210
36023 cdc93fe1da77 wireprotoserver: move protocol parsing and dispatch out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36021 diff changeset	211 def _callhttp(repo, req, proto, cmd):
35750 a39a9df7ecca wireproto: split streamres into legacy and modern case Joerg Sonnenberger <joerg@bec.de> parents: 35705 diff changeset	212 def genversion2(gen, engine, engineopts):
30764 e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	213 # application/mercurial-0.2 always sends a payload header
e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	214 # identifying the compression engine.
e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	215 name = engine.wireprotosupport().name
e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	216 assert 0 < len(name) < 256
e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	217 yield struct.pack('B', len(name))
e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	218 yield name
e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	219
35750 a39a9df7ecca wireproto: split streamres into legacy and modern case Joerg Sonnenberger <joerg@bec.de> parents: 35705 diff changeset	220 for chunk in gen:
a39a9df7ecca wireproto: split streamres into legacy and modern case Joerg Sonnenberger <joerg@bec.de> parents: 35705 diff changeset	221 yield chunk
30764 e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	222
35904 bd38ccf4ecf6 wireprotoserver: rename p to proto Gregory Szorc <gregory.szorc@gmail.com> parents: 35903 diff changeset	223 rsp = wireproto.dispatch(repo, proto, cmd)
36021 5a56bf4180ad wireproto: function for testing if wire protocol command is available Gregory Szorc <gregory.szorc@gmail.com> parents: 36015 diff changeset	224
5a56bf4180ad wireproto: function for testing if wire protocol command is available Gregory Szorc <gregory.szorc@gmail.com> parents: 36015 diff changeset	225 if not wireproto.commands.commandavailable(cmd, proto):
5a56bf4180ad wireproto: function for testing if wire protocol command is available Gregory Szorc <gregory.szorc@gmail.com> parents: 36015 diff changeset	226 req.respond(HTTP_OK, HGERRTYPE,
5a56bf4180ad wireproto: function for testing if wire protocol command is available Gregory Szorc <gregory.szorc@gmail.com> parents: 36015 diff changeset	227 body=_('requested wire protocol command is not available '
5a56bf4180ad wireproto: function for testing if wire protocol command is available Gregory Szorc <gregory.szorc@gmail.com> parents: 36015 diff changeset	228 'over HTTP'))
5a56bf4180ad wireproto: function for testing if wire protocol command is available Gregory Szorc <gregory.szorc@gmail.com> parents: 36015 diff changeset	229 return []
5a56bf4180ad wireproto: function for testing if wire protocol command is available Gregory Szorc <gregory.szorc@gmail.com> parents: 36015 diff changeset	230
34510 c23fa3103925 hgweb: in protocol adapter, look for bytes instances, not str Augie Fackler <augie@google.com> parents: 34509 diff changeset	231 if isinstance(rsp, bytes):
18352 e33b9b92a200 hgweb: pass the actual response body to request.response, not just the length Mads Kiilerich <mads@kiilerich.com> parents: 18346 diff changeset	232 req.respond(HTTP_OK, HGTYPE, body=rsp)
e33b9b92a200 hgweb: pass the actual response body to request.response, not just the length Mads Kiilerich <mads@kiilerich.com> parents: 18346 diff changeset	233 return []
36112 2f7290555c96 wireproto: introduce type for raw byte responses (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36111 diff changeset	234 elif isinstance(rsp, wireprototypes.bytesresponse):
2f7290555c96 wireproto: introduce type for raw byte responses (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36111 diff changeset	235 req.respond(HTTP_OK, HGTYPE, body=rsp.data)
2f7290555c96 wireproto: introduce type for raw byte responses (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36111 diff changeset	236 return []
36111 cd6ab329c5c7 wireprototypes: move wire protocol response types to new module Gregory Szorc <gregory.szorc@gmail.com> parents: 36110 diff changeset	237 elif isinstance(rsp, wireprototypes.streamreslegacy):
35750 a39a9df7ecca wireproto: split streamres into legacy and modern case Joerg Sonnenberger <joerg@bec.de> parents: 35705 diff changeset	238 gen = rsp.gen
a39a9df7ecca wireproto: split streamres into legacy and modern case Joerg Sonnenberger <joerg@bec.de> parents: 35705 diff changeset	239 req.respond(HTTP_OK, HGTYPE)
a39a9df7ecca wireproto: split streamres into legacy and modern case Joerg Sonnenberger <joerg@bec.de> parents: 35705 diff changeset	240 return gen
36111 cd6ab329c5c7 wireprototypes: move wire protocol response types to new module Gregory Szorc <gregory.szorc@gmail.com> parents: 36110 diff changeset	241 elif isinstance(rsp, wireprototypes.streamres):
35705 8cdb671dbd0b wireproto: drop support for reader interface from streamres (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 34744 diff changeset	242 gen = rsp.gen
30475 2add671bf55b wireproto: perform chunking and compression at protocol layer (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 30376 diff changeset	243
30764 e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	244 # This code for compression should not be streamres specific. It
e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	245 # is here because we only compress streamres at the moment.
36110 341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	246 mediatype, engine, engineopts = _httpresponsetype(
341c886e411e wireprotoserver: move responsetype() out of http handler Gregory Szorc <gregory.szorc@gmail.com> parents: 36109 diff changeset	247 repo.ui, req, rsp.prefer_uncompressed)
35750 a39a9df7ecca wireproto: split streamres into legacy and modern case Joerg Sonnenberger <joerg@bec.de> parents: 35705 diff changeset	248 gen = engine.compressstream(gen, engineopts)
30475 2add671bf55b wireproto: perform chunking and compression at protocol layer (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 30376 diff changeset	249
35750 a39a9df7ecca wireproto: split streamres into legacy and modern case Joerg Sonnenberger <joerg@bec.de> parents: 35705 diff changeset	250 if mediatype == HGTYPE2:
a39a9df7ecca wireproto: split streamres into legacy and modern case Joerg Sonnenberger <joerg@bec.de> parents: 35705 diff changeset	251 gen = genversion2(gen, engine, engineopts)
30764 e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	252
e75463e3179f protocol: send application/mercurial-0.2 responses to capable clients Gregory Szorc <gregory.szorc@gmail.com> parents: 30759 diff changeset	253 req.respond(HTTP_OK, mediatype)
30475 2add671bf55b wireproto: perform chunking and compression at protocol layer (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 30376 diff changeset	254 return gen
36111 cd6ab329c5c7 wireprototypes: move wire protocol response types to new module Gregory Szorc <gregory.szorc@gmail.com> parents: 36110 diff changeset	255 elif isinstance(rsp, wireprototypes.pushres):
36105 caca3ac2ac04 wireproto: use maybecapturestdio() for push responses (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36104 diff changeset	256 rsp = '%d\n%s' % (rsp.res, rsp.output)
18352 e33b9b92a200 hgweb: pass the actual response body to request.response, not just the length Mads Kiilerich <mads@kiilerich.com> parents: 18346 diff changeset	257 req.respond(HTTP_OK, HGTYPE, body=rsp)
e33b9b92a200 hgweb: pass the actual response body to request.response, not just the length Mads Kiilerich <mads@kiilerich.com> parents: 18346 diff changeset	258 return []
36111 cd6ab329c5c7 wireprototypes: move wire protocol response types to new module Gregory Szorc <gregory.szorc@gmail.com> parents: 36110 diff changeset	259 elif isinstance(rsp, wireprototypes.pusherr):
36026 6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	260 # This is the httplib workaround documented in _handlehttperror().
12704 ca6e2adc3e4d wireproto/http: drain the incoming bundle in case of errors Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 12703 diff changeset	261 req.drain()
36026 6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	262
12703 40bb5853fc4b wireproto: introduce pusherr() to deal with "unsynced changes" error Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 11626 diff changeset	263 rsp = '0\n%s\n' % rsp.res
18352 e33b9b92a200 hgweb: pass the actual response body to request.response, not just the length Mads Kiilerich <mads@kiilerich.com> parents: 18346 diff changeset	264 req.respond(HTTP_OK, HGTYPE, body=rsp)
e33b9b92a200 hgweb: pass the actual response body to request.response, not just the length Mads Kiilerich <mads@kiilerich.com> parents: 18346 diff changeset	265 return []
36111 cd6ab329c5c7 wireprototypes: move wire protocol response types to new module Gregory Szorc <gregory.szorc@gmail.com> parents: 36110 diff changeset	266 elif isinstance(rsp, wireprototypes.ooberror):
15017 f4522df38c65 wireproto: add out-of-band error class to allow remote repo to report errors Andrew Pritchard <andrewp@fogcreek.com> parents: 14614 diff changeset	267 rsp = rsp.message
18352 e33b9b92a200 hgweb: pass the actual response body to request.response, not just the length Mads Kiilerich <mads@kiilerich.com> parents: 18346 diff changeset	268 req.respond(HTTP_OK, HGERRTYPE, body=rsp)
e33b9b92a200 hgweb: pass the actual response body to request.response, not just the length Mads Kiilerich <mads@kiilerich.com> parents: 18346 diff changeset	269 return []
34509 e21f274cccea hgweb: in protocol adapter, avoid control reaching end of non-void function Augie Fackler <augie@google.com> parents: 33842 diff changeset	270 raise error.ProgrammingError('hgweb.protocol internal failure', rsp)
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	271
36025 98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	272 def _handlehttperror(e, req, cmd):
98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	273 """Called when an ErrorResponse is raised during HTTP request processing."""
36026 6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	274
6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	275 # Clients using Python's httplib are stateful: the HTTP client
6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	276 # won't process an HTTP response until all request data is
6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	277 # sent to the server. The intent of this code is to ensure
6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	278 # we always read HTTP request data from the client, thus
6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	279 # ensuring httplib transitions to a state that allows it to read
6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	280 # the HTTP response. In other words, it helps prevent deadlocks
6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	281 # on clients using httplib.
6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	282
6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	283 if (req.env[r'REQUEST_METHOD'] == r'POST' and
6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	284 # But not if Expect: 100-continue is being used.
36025 98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	285 (req.env.get('HTTP_EXPECT',
98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	286 '').lower() != '100-continue') or
36026 6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	287 # Or the non-httplib HTTP library is being advertised by
6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	288 # the client.
36025 98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	289 req.env.get('X-HgHttp2', '')):
98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	290 req.drain()
98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	291 else:
98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	292 req.headers.append((r'Connection', r'Close'))
98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	293
36026 6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	294 # TODO This response body assumes the failed command was
6010fe1da619 wireprotoserver: document and improve the httplib workaround Gregory Szorc <gregory.szorc@gmail.com> parents: 36025 diff changeset	295 # "unbundle." That assumption is not always valid.
36291 af0a19d8812b py3: get bytes-repr of network errors portably Augie Fackler <augie@google.com> parents: 36269 diff changeset	296 req.respond(e, HGTYPE, body='0\n%s\n' % pycompat.bytestr(e))
36025 98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	297
98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	298 return ''
98a00aa0288d wireprotoserver: move error response handling out of hgweb Gregory Szorc <gregory.szorc@gmail.com> parents: 36023 diff changeset	299
36102 5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	300 def _sshv1respondbytes(fout, value):
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	301 """Send a bytes response for protocol version 1."""
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	302 fout.write('%d\n' % len(value))
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	303 fout.write(value)
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	304 fout.flush()
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	305
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	306 def _sshv1respondstream(fout, source):
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	307 write = fout.write
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	308 for chunk in source.gen:
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	309 write(chunk)
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	310 fout.flush()
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	311
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	312 def _sshv1respondooberror(fout, ferr, rsp):
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	313 ferr.write(b'%s\n-\n' % rsp)
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	314 ferr.flush()
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	315 fout.write(b'\n')
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	316 fout.flush()
5767664d39a5 wireprotoserver: extract SSH response handling functions Gregory Szorc <gregory.szorc@gmail.com> parents: 36027 diff changeset	317
36402 0c231df1ffdc wireprototypes: move baseprotocolhandler from wireprotoserver Gregory Szorc <gregory.szorc@gmail.com> parents: 36313 diff changeset	318 class sshv1protocolhandler(wireprototypes.baseprotocolhandler):
36103 bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	319 """Handler for requests services via version 1 of SSH protocol."""
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	320 def __init__(self, ui, fin, fout):
35910 f1efc0caeab7 wireprotoserver: make some instance attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35909 diff changeset	321 self._ui = ui
36103 bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	322 self._fin = fin
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	323 self._fout = fout
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	324
35913 29759c46aa1a wireprotoserver: make name part of protocol interface Gregory Szorc <gregory.szorc@gmail.com> parents: 35912 diff changeset	325 @property
29759c46aa1a wireprotoserver: make name part of protocol interface Gregory Szorc <gregory.szorc@gmail.com> parents: 35912 diff changeset	326 def name(self):
36113 ac33dc94e1d5 wireprotoserver: add version to SSH protocol names (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36112 diff changeset	327 return SSHV1
35913 29759c46aa1a wireprotoserver: make name part of protocol interface Gregory Szorc <gregory.szorc@gmail.com> parents: 35912 diff changeset	328
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	329 def getargs(self, args):
1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	330 data = {}
1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	331 keys = args.split()
1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	332 for n in xrange(len(keys)):
35910 f1efc0caeab7 wireprotoserver: make some instance attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35909 diff changeset	333 argline = self._fin.readline()[:-1]
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	334 arg, l = argline.split()
1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	335 if arg not in keys:
1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	336 raise error.Abort(_("unexpected parameter %r") % arg)
1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	337 if arg == '*':
1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	338 star = {}
1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	339 for k in xrange(int(l)):
35910 f1efc0caeab7 wireprotoserver: make some instance attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35909 diff changeset	340 argline = self._fin.readline()[:-1]
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	341 arg, l = argline.split()
35910 f1efc0caeab7 wireprotoserver: make some instance attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35909 diff changeset	342 val = self._fin.read(int(l))
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	343 star[arg] = val
1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	344 data['*'] = star
1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	345 else:
35910 f1efc0caeab7 wireprotoserver: make some instance attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35909 diff changeset	346 val = self._fin.read(int(l))
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	347 data[arg] = val
1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	348 return [data[k] for k in keys]
1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	349
36108 90ca4986616c wireprotoserver: rename getfile() to forwardpayload() (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36107 diff changeset	350 def forwardpayload(self, fpout):
36403 b8d0761a85c7 wireproto: document the wonky push protocol for SSH Gregory Szorc <gregory.szorc@gmail.com> parents: 36402 diff changeset	351 # We initially send an empty response. This tells the client it is
b8d0761a85c7 wireproto: document the wonky push protocol for SSH Gregory Szorc <gregory.szorc@gmail.com> parents: 36402 diff changeset	352 # OK to start sending data. If a client sees any other response, it
b8d0761a85c7 wireproto: document the wonky push protocol for SSH Gregory Szorc <gregory.szorc@gmail.com> parents: 36402 diff changeset	353 # interprets it as an error.
b8d0761a85c7 wireproto: document the wonky push protocol for SSH Gregory Szorc <gregory.szorc@gmail.com> parents: 36402 diff changeset	354 _sshv1respondbytes(self._fout, b'')
b8d0761a85c7 wireproto: document the wonky push protocol for SSH Gregory Szorc <gregory.szorc@gmail.com> parents: 36402 diff changeset	355
36108 90ca4986616c wireprotoserver: rename getfile() to forwardpayload() (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36107 diff changeset	356 # The file is in the form:
90ca4986616c wireprotoserver: rename getfile() to forwardpayload() (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36107 diff changeset	357 #
90ca4986616c wireprotoserver: rename getfile() to forwardpayload() (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36107 diff changeset	358 # <chunk size>\n<chunk>
90ca4986616c wireprotoserver: rename getfile() to forwardpayload() (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36107 diff changeset	359 # ...
90ca4986616c wireprotoserver: rename getfile() to forwardpayload() (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36107 diff changeset	360 # 0\n
35910 f1efc0caeab7 wireprotoserver: make some instance attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35909 diff changeset	361 count = int(self._fin.readline())
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	362 while count:
35910 f1efc0caeab7 wireprotoserver: make some instance attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35909 diff changeset	363 fpout.write(self._fin.read(count))
f1efc0caeab7 wireprotoserver: make some instance attributes private Gregory Szorc <gregory.szorc@gmail.com> parents: 35909 diff changeset	364 count = int(self._fin.readline())
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	365
36104 2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	366 @contextlib.contextmanager
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	367 def mayberedirectstdio(self):
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	368 yield None
2ad145fbde54 wireprotoserver: add context manager mechanism for redirecting stdio Gregory Szorc <gregory.szorc@gmail.com> parents: 36103 diff changeset	369
36107 957e773614d0 wireprotoserver: rename _client to client (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 36106 diff changeset	370 def client(self):
36103 bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	371 client = encoding.environ.get('SSH_CLIENT', '').split(' ', 1)[0]
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	372 return 'remote:ssh:' + client
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	373
36253 464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	374 class sshv2protocolhandler(sshv1protocolhandler):
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	375 """Protocol handler for version 2 of the SSH protocol."""
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	376
36552 e7411fb7ba7f wireprotoserver: ability to run an SSH server until an event is set Gregory Szorc <gregory.szorc@gmail.com> parents: 36403 diff changeset	377 def _runsshserver(ui, repo, fin, fout, ev):
36253 464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	378 # This function operates like a state machine of sorts. The following
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	379 # states are defined:
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	380 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	381 # protov1-serving
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	382 # Server is in protocol version 1 serving mode. Commands arrive on
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	383 # new lines. These commands are processed in this state, one command
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	384 # after the other.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	385 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	386 # protov2-serving
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	387 # Server is in protocol version 2 serving mode.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	388 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	389 # upgrade-initial
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	390 # The server is going to process an upgrade request.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	391 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	392 # upgrade-v2-filter-legacy-handshake
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	393 # The protocol is being upgraded to version 2. The server is expecting
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	394 # the legacy handshake from version 1.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	395 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	396 # upgrade-v2-finish
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	397 # The upgrade to version 2 of the protocol is imminent.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	398 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	399 # shutdown
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	400 # The server is shutting down, possibly in reaction to a client event.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	401 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	402 # And here are their transitions:
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	403 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	404 # protov1-serving -> shutdown
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	405 # When server receives an empty request or encounters another
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	406 # error.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	407 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	408 # protov1-serving -> upgrade-initial
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	409 # An upgrade request line was seen.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	410 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	411 # upgrade-initial -> upgrade-v2-filter-legacy-handshake
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	412 # Upgrade to version 2 in progress. Server is expecting to
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	413 # process a legacy handshake.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	414 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	415 # upgrade-v2-filter-legacy-handshake -> shutdown
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	416 # Client did not fulfill upgrade handshake requirements.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	417 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	418 # upgrade-v2-filter-legacy-handshake -> upgrade-v2-finish
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	419 # Client fulfilled version 2 upgrade requirements. Finishing that
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	420 # upgrade.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	421 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	422 # upgrade-v2-finish -> protov2-serving
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	423 # Protocol upgrade to version 2 complete. Server can now speak protocol
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	424 # version 2.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	425 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	426 # protov2-serving -> protov1-serving
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	427 # Ths happens by default since protocol version 2 is the same as
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	428 # version 1 except for the handshake.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	429
36252 3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	430 state = 'protov1-serving'
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	431 proto = sshv1protocolhandler(ui, fin, fout)
36253 464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	432 protoswitched = False
36252 3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	433
36552 e7411fb7ba7f wireprotoserver: ability to run an SSH server until an event is set Gregory Szorc <gregory.szorc@gmail.com> parents: 36403 diff changeset	434 while not ev.is_set():
36252 3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	435 if state == 'protov1-serving':
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	436 # Commands are issued on new lines.
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	437 request = fin.readline()[:-1]
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	438
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	439 # Empty lines signal to terminate the connection.
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	440 if not request:
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	441 state = 'shutdown'
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	442 continue
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	443
36253 464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	444 # It looks like a protocol upgrade request. Transition state to
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	445 # handle it.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	446 if request.startswith(b'upgrade '):
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	447 if protoswitched:
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	448 _sshv1respondooberror(fout, ui.ferr,
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	449 b'cannot upgrade protocols multiple '
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	450 b'times')
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	451 state = 'shutdown'
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	452 continue
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	453
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	454 state = 'upgrade-initial'
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	455 continue
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	456
36252 3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	457 available = wireproto.commands.commandavailable(request, proto)
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	458
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	459 # This command isn't available. Send an empty response and go
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	460 # back to waiting for a new command.
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	461 if not available:
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	462 _sshv1respondbytes(fout, b'')
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	463 continue
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	464
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	465 rsp = wireproto.dispatch(repo, proto, request)
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	466
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	467 if isinstance(rsp, bytes):
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	468 _sshv1respondbytes(fout, rsp)
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	469 elif isinstance(rsp, wireprototypes.bytesresponse):
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	470 _sshv1respondbytes(fout, rsp.data)
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	471 elif isinstance(rsp, wireprototypes.streamres):
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	472 _sshv1respondstream(fout, rsp)
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	473 elif isinstance(rsp, wireprototypes.streamreslegacy):
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	474 _sshv1respondstream(fout, rsp)
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	475 elif isinstance(rsp, wireprototypes.pushres):
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	476 _sshv1respondbytes(fout, b'')
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	477 _sshv1respondbytes(fout, b'%d' % rsp.res)
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	478 elif isinstance(rsp, wireprototypes.pusherr):
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	479 _sshv1respondbytes(fout, rsp.res)
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	480 elif isinstance(rsp, wireprototypes.ooberror):
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	481 _sshv1respondooberror(fout, ui.ferr, rsp.message)
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	482 else:
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	483 raise error.ProgrammingError('unhandled response type from '
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	484 'wire protocol command: %s' % rsp)
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	485
36253 464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	486 # For now, protocol version 2 serving just goes back to version 1.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	487 elif state == 'protov2-serving':
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	488 state = 'protov1-serving'
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	489 continue
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	490
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	491 elif state == 'upgrade-initial':
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	492 # We should never transition into this state if we've switched
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	493 # protocols.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	494 assert not protoswitched
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	495 assert proto.name == SSHV1
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	496
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	497 # Expected: upgrade <token> <capabilities>
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	498 # If we get something else, the request is malformed. It could be
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	499 # from a future client that has altered the upgrade line content.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	500 # We treat this as an unknown command.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	501 try:
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	502 token, caps = request.split(b' ')[1:]
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	503 except ValueError:
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	504 _sshv1respondbytes(fout, b'')
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	505 state = 'protov1-serving'
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	506 continue
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	507
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	508 # Send empty response if we don't support upgrading protocols.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	509 if not ui.configbool('experimental', 'sshserver.support-v2'):
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	510 _sshv1respondbytes(fout, b'')
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	511 state = 'protov1-serving'
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	512 continue
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	513
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	514 try:
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	515 caps = urlreq.parseqs(caps)
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	516 except ValueError:
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	517 _sshv1respondbytes(fout, b'')
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	518 state = 'protov1-serving'
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	519 continue
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	520
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	521 # We don't see an upgrade request to protocol version 2. Ignore
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	522 # the upgrade request.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	523 wantedprotos = caps.get(b'proto', [b''])[0]
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	524 if SSHV2 not in wantedprotos:
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	525 _sshv1respondbytes(fout, b'')
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	526 state = 'protov1-serving'
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	527 continue
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	528
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	529 # It looks like we can honor this upgrade request to protocol 2.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	530 # Filter the rest of the handshake protocol request lines.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	531 state = 'upgrade-v2-filter-legacy-handshake'
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	532 continue
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	533
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	534 elif state == 'upgrade-v2-filter-legacy-handshake':
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	535 # Client should have sent legacy handshake after an ``upgrade``
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	536 # request. Expected lines:
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	537 #
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	538 # hello
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	539 # between
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	540 # pairs 81
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	541 # 0000...-0000...
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	542
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	543 ok = True
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	544 for line in (b'hello', b'between', b'pairs 81'):
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	545 request = fin.readline()[:-1]
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	546
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	547 if request != line:
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	548 _sshv1respondooberror(fout, ui.ferr,
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	549 b'malformed handshake protocol: '
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	550 b'missing %s' % line)
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	551 ok = False
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	552 state = 'shutdown'
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	553 break
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	554
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	555 if not ok:
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	556 continue
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	557
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	558 request = fin.read(81)
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	559 if request != b'%s-%s' % (b'0' * 40, b'0' * 40):
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	560 _sshv1respondooberror(fout, ui.ferr,
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	561 b'malformed handshake protocol: '
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	562 b'missing between argument value')
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	563 state = 'shutdown'
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	564 continue
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	565
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	566 state = 'upgrade-v2-finish'
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	567 continue
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	568
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	569 elif state == 'upgrade-v2-finish':
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	570 # Send the upgrade response.
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	571 fout.write(b'upgraded %s %s\n' % (token, SSHV2))
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	572 servercaps = wireproto.capabilities(repo, proto)
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	573 rsp = b'capabilities: %s' % servercaps.data
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	574 fout.write(b'%d\n%s\n' % (len(rsp), rsp))
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	575 fout.flush()
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	576
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	577 proto = sshv2protocolhandler(ui, fin, fout)
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	578 protoswitched = True
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	579
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	580 state = 'protov2-serving'
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	581 continue
464bedc0fdb4 wireprotoserver: handle SSH protocol version 2 upgrade requests Gregory Szorc <gregory.szorc@gmail.com> parents: 36252 diff changeset	582
36252 3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	583 elif state == 'shutdown':
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	584 break
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	585
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	586 else:
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	587 raise error.ProgrammingError('unhandled ssh server state: %s' %
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	588 state)
3b3a987bbbaa wireprotoserver: move SSH server operation to a standalone function Gregory Szorc <gregory.szorc@gmail.com> parents: 36251 diff changeset	589
36103 bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	590 class sshserver(object):
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	591 def __init__(self, ui, repo):
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	592 self._ui = ui
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	593 self._repo = repo
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	594 self._fin = ui.fin
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	595 self._fout = ui.fout
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	596
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	597 hook.redirect(True)
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	598 ui.fout = repo.ui.fout = ui.ferr
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	599
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	600 # Prevent insertion/deletion of CRs
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	601 util.setbinary(self._fin)
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	602 util.setbinary(self._fout)
bf676267f64f wireprotoserver: split ssh protocol handler and server Gregory Szorc <gregory.szorc@gmail.com> parents: 36102 diff changeset	603
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	604 def serve_forever(self):
36552 e7411fb7ba7f wireprotoserver: ability to run an SSH server until an event is set Gregory Szorc <gregory.szorc@gmail.com> parents: 36403 diff changeset	605 self.serveuntil(threading.Event())
35899 1bf5263fe5cc wireprotoserver: move sshserver into module (API) Gregory Szorc <gregory.szorc@gmail.com> parents: 35898 diff changeset	606 sys.exit(0)
36552 e7411fb7ba7f wireprotoserver: ability to run an SSH server until an event is set Gregory Szorc <gregory.szorc@gmail.com> parents: 36403 diff changeset	607
e7411fb7ba7f wireprotoserver: ability to run an SSH server until an event is set Gregory Szorc <gregory.szorc@gmail.com> parents: 36403 diff changeset	608 def serveuntil(self, ev):
e7411fb7ba7f wireprotoserver: ability to run an SSH server until an event is set Gregory Szorc <gregory.szorc@gmail.com> parents: 36403 diff changeset	609 """Serve until a threading.Event is set."""
e7411fb7ba7f wireprotoserver: ability to run an SSH server until an event is set Gregory Szorc <gregory.szorc@gmail.com> parents: 36403 diff changeset	610 _runsshserver(self._ui, self._repo, self._fin, self._fout, ev)

Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/wireprotoserver.py @ 36552:e7411fb7ba7f