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annotate mercurial/hgweb/protocol.py @ 30759:3f5f0c98cd18

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httppeer: extract code for HTTP header spanning A second consumer of HTTP header spanning will soon be introduced. Factor out the code to do this so it can be reused.
author Gregory Szorc <gregory.szorc@gmail.com>
date Sat, 24 Dec 2016 14:46:02 -0700
parents b3a9ef3d30e8
children e75463e3179f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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5598
d534ba1c4eb4 separate the wire protocol commands from the user interface commands
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1 #
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2 # Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net>
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3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 from __future__ import absolute_import
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9
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10 import cgi
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11
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12 from .common import (
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13 HTTP_OK,
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14 )
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15
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16 from .. import (
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17 util,
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18 wireproto,
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19 )
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20 stringio = util.stringio
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21
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22 urlerr = util.urlerr
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23 urlreq = util.urlreq
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24
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25 HGTYPE = 'application/mercurial-0.1'
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26 HGERRTYPE = 'application/hg-error'
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27
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28 def decodevaluefromheaders(req, headerprefix):
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29 """Decode a long value from multiple HTTP request headers."""
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30 chunks = []
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31 i = 1
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32 while True:
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33 v = req.env.get('HTTP_%s_%d' % (
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34 headerprefix.upper().replace('-', '_'), i))
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35 if v is None:
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36 break
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37 chunks.append(v)
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38 i += 1
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39
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40 return ''.join(chunks)
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41
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42 class webproto(wireproto.abstractserverproto):
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43 def __init__(self, req, ui):
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44 self.req = req
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45 self.response = ''
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46 self.ui = ui
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47 self.name = 'http'
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48
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49 def getargs(self, args):
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50 knownargs = self._args()
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51 data = {}
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52 keys = args.split()
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53 for k in keys:
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54 if k == '*':
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55 star = {}
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56 for key in knownargs.keys():
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57 if key != 'cmd' and key not in keys:
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58 star[key] = knownargs[key][0]
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59 data['*'] = star
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60 else:
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61 data[k] = knownargs[k][0]
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62 return [data[k] for k in keys]
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63 def _args(self):
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64 args = self.req.form.copy()
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65 postlen = int(self.req.env.get('HTTP_X_HGARGS_POST', 0))
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66 if postlen:
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67 args.update(cgi.parse_qs(
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68 self.req.read(postlen), keep_blank_values=True))
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69 return args
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70
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71 argvalue = decodevaluefromheaders(self.req, 'X-HgArg')
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72 args.update(cgi.parse_qs(argvalue, keep_blank_values=True))
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73 return args
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74 def getfile(self, fp):
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75 length = int(self.req.env['CONTENT_LENGTH'])
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76 for s in util.filechunkiter(self.req, limit=length):
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77 fp.write(s)
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78 def redirect(self):
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79 self.oldio = self.ui.fout, self.ui.ferr
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80 self.ui.ferr = self.ui.fout = stringio()
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81 def restore(self):
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82 val = self.ui.fout.getvalue()
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83 self.ui.ferr, self.ui.fout = self.oldio
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84 return val
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85
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86 def compresschunks(self, chunks):
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87 # Don't allow untrusted settings because disabling compression or
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88 # setting a very high compression level could lead to flooding
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89 # the server's network or CPU.
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90 opts = {'level': self.ui.configint('server', 'zliblevel', -1)}
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91 return util.compengines['zlib'].compressstream(chunks, opts)
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92
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93 def _client(self):
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94 return 'remote:%s:%s:%s' % (
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95 self.req.env.get('wsgi.url_scheme') or 'http',
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96 urlreq.quote(self.req.env.get('REMOTE_HOST', '')),
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97 urlreq.quote(self.req.env.get('REMOTE_USER', '')))
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98
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99 def iscmd(cmd):
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100 return cmd in wireproto.commands
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101
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102 def call(repo, req, cmd):
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103 p = webproto(req, repo.ui)
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104 rsp = wireproto.dispatch(repo, p, cmd)
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105 if isinstance(rsp, str):
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106 req.respond(HTTP_OK, HGTYPE, body=rsp)
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107 return []
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108 elif isinstance(rsp, wireproto.streamres):
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109 if rsp.reader:
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110 gen = iter(lambda: rsp.reader.read(32768), '')
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111 else:
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112 gen = rsp.gen
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113
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114 if rsp.v1compressible:
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115 gen = p.compresschunks(gen)
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116
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117 req.respond(HTTP_OK, HGTYPE)
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118 return gen
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119 elif isinstance(rsp, wireproto.pushres):
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120 val = p.restore()
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121 rsp = '%d\n%s' % (rsp.res, val)
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122 req.respond(HTTP_OK, HGTYPE, body=rsp)
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123 return []
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124 elif isinstance(rsp, wireproto.pusherr):
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125 # drain the incoming bundle
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126 req.drain()
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127 p.restore()
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128 rsp = '0\n%s\n' % rsp.res
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129 req.respond(HTTP_OK, HGTYPE, body=rsp)
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130 return []
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f4522df38c65 wireproto: add out-of-band error class to allow remote repo to report errors
Andrew Pritchard <andrewp@fogcreek.com>
parents: 14614
diff changeset
131 elif isinstance(rsp, wireproto.ooberror):
f4522df38c65 wireproto: add out-of-band error class to allow remote repo to report errors
Andrew Pritchard <andrewp@fogcreek.com>
parents: 14614
diff changeset
132 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
133 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
134 return []