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comparison mercurial/hgweb/protocol.py @ 14093:ce99d887585f

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httprepo: long arguments support (issue2126) Send the command arguments in the HTTP headers. The command is still part of the URL. If the server does not have the 'httpheader' capability, the client will send the command arguments in the URL as it did previously. Web servers typically allow more data to be placed within the headers than in the URL, so this approach will: - Avoid HTTP errors due to using a URL that is too large. - Allow Mercurial to implement a more efficient wire protocol. An alternate approach is to send the arguments as part of the request body. This approach has been rejected because it requires the use of POST requests, so it would break any existing configuration that relies on the request type for authentication or caching. Extensibility: - The header size is provided by the server, which makes it possible to introduce an hgrc setting for it. - The client ignores the capability value after the first comma, which allows more information to be included in the future.
author Steven Brown <StevenGBrown@gmail.com>
date Sun, 01 May 2011 01:04:37 +0800
parents 3458c15ab2f0
children d10c6835497e
comparison
equal deleted inserted replaced
14092:222c8ec7a274 14093:ce99d887585f
3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> 3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
4 # 4 #
5 # This software may be used and distributed according to the terms of the 5 # This software may be used and distributed according to the terms of the
6 # GNU General Public License version 2 or any later version. 6 # GNU General Public License version 2 or any later version.
7 7
8 import cStringIO, zlib, sys, urllib 8 import cgi, cStringIO, itertools, zlib, sys, urllib
9 from mercurial import util, wireproto 9 from mercurial import util, wireproto
10 from common import HTTP_OK 10 from common import HTTP_OK
11 11
12 HGTYPE = 'application/mercurial-0.1' 12 HGTYPE = 'application/mercurial-0.1'
13 13
14 class webproto(object): 14 class webproto(object):
15 def __init__(self, req): 15 def __init__(self, req):
16 self.req = req 16 self.req = req
17 self.response = '' 17 self.response = ''
18 def getargs(self, args): 18 def getargs(self, args):
19 knownargs = self._args()
19 data = {} 20 data = {}
20 keys = args.split() 21 keys = args.split()
21 for k in keys: 22 for k in keys:
22 if k == '*': 23 if k == '*':
23 star = {} 24 star = {}
24 for key in self.req.form.keys(): 25 for key in knownargs.keys():
25 if key != 'cmd' and key not in keys: 26 if key != 'cmd' and key not in keys:
26 star[key] = self.req.form[key][0] 27 star[key] = knownargs[key][0]
27 data['*'] = star 28 data['*'] = star
28 else: 29 else:
29 data[k] = self.req.form[k][0] 30 data[k] = knownargs[k][0]
30 return [data[k] for k in keys] 31 return [data[k] for k in keys]
32 def _args(self):
33 args = self.req.form.copy()
34 chunks = []
35 for i in itertools.count(1):
36 h = self.req.env.get('HTTP_X_ARG_' + str(i))
37 if h is None:
38 break
39 chunks += [h]
40 args.update(cgi.parse_qs(''.join(chunks), keep_blank_values=True))
41 return args
31 def getfile(self, fp): 42 def getfile(self, fp):
32 length = int(self.req.env['CONTENT_LENGTH']) 43 length = int(self.req.env['CONTENT_LENGTH'])
33 for s in util.filechunkiter(self.req, limit=length): 44 for s in util.filechunkiter(self.req, limit=length):
34 fp.write(s) 45 fp.write(s)
35 def redirect(self): 46 def redirect(self):