Mercurial > hg
annotate mercurial/url.py @ 9373:b34184c046ac
log: fix traceback for log -k caused by 1ef630452e0b (issue1805)
author | Dirkjan Ochtman <dirkjan@ochtman.nl> |
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date | Fri, 21 Aug 2009 09:33:27 +0200 |
parents | d0474b184347 |
children | 4c041f1ee1b4 |
rev | line source |
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1 # url.py - HTTP handling for mercurial |
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2 # |
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3 # Copyright 2005, 2006, 2007, 2008 Matt Mackall <mpm@selenic.com> |
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4 # Copyright 2006, 2007 Alexis S. L. Carvalho <alexis@cecm.usp.br> |
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5 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
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6 # |
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7 # This software may be used and distributed according to the terms of the |
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8 # GNU General Public License version 2, incorporated herein by reference. |
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9 |
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10 import urllib, urllib2, urlparse, httplib, os, re, socket, cStringIO |
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11 from i18n import _ |
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12 import keepalive, util |
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13 |
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14 def hidepassword(url): |
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15 '''hide user credential in a url string''' |
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16 scheme, netloc, path, params, query, fragment = urlparse.urlparse(url) |
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17 netloc = re.sub('([^:]*):([^@]*)@(.*)', r'\1:***@\3', netloc) |
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18 return urlparse.urlunparse((scheme, netloc, path, params, query, fragment)) |
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19 |
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20 def removeauth(url): |
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21 '''remove all authentication information from a url string''' |
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22 scheme, netloc, path, params, query, fragment = urlparse.urlparse(url) |
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23 netloc = netloc[netloc.find('@')+1:] |
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24 return urlparse.urlunparse((scheme, netloc, path, params, query, fragment)) |
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25 |
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26 def netlocsplit(netloc): |
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27 '''split [user[:passwd]@]host[:port] into 4-tuple.''' |
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28 |
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29 a = netloc.find('@') |
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30 if a == -1: |
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31 user, passwd = None, None |
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32 else: |
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33 userpass, netloc = netloc[:a], netloc[a+1:] |
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34 c = userpass.find(':') |
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35 if c == -1: |
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36 user, passwd = urllib.unquote(userpass), None |
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37 else: |
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38 user = urllib.unquote(userpass[:c]) |
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39 passwd = urllib.unquote(userpass[c+1:]) |
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40 c = netloc.find(':') |
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41 if c == -1: |
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42 host, port = netloc, None |
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43 else: |
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44 host, port = netloc[:c], netloc[c+1:] |
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45 return host, port, user, passwd |
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46 |
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47 def netlocunsplit(host, port, user=None, passwd=None): |
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48 '''turn host, port, user, passwd into [user[:passwd]@]host[:port].''' |
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49 if port: |
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50 hostport = host + ':' + port |
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51 else: |
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52 hostport = host |
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53 if user: |
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54 if passwd: |
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55 userpass = urllib.quote(user) + ':' + urllib.quote(passwd) |
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56 else: |
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57 userpass = urllib.quote(user) |
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58 return userpass + '@' + hostport |
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59 return hostport |
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60 |
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61 _safe = ('abcdefghijklmnopqrstuvwxyz' |
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62 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' |
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63 '0123456789' '_.-/') |
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64 _safeset = None |
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65 _hex = None |
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66 def quotepath(path): |
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67 '''quote the path part of a URL |
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68 |
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69 This is similar to urllib.quote, but it also tries to avoid |
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70 quoting things twice (inspired by wget): |
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71 |
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72 >>> quotepath('abc def') |
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73 'abc%20def' |
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74 >>> quotepath('abc%20def') |
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75 'abc%20def' |
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76 >>> quotepath('abc%20 def') |
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77 'abc%20%20def' |
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78 >>> quotepath('abc def%20') |
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79 'abc%20def%20' |
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80 >>> quotepath('abc def%2') |
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81 'abc%20def%252' |
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82 >>> quotepath('abc def%') |
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83 'abc%20def%25' |
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84 ''' |
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85 global _safeset, _hex |
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86 if _safeset is None: |
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87 _safeset = set(_safe) |
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88 _hex = set('abcdefABCDEF0123456789') |
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89 l = list(path) |
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90 for i in xrange(len(l)): |
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91 c = l[i] |
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92 if c == '%' and i + 2 < len(l) and (l[i+1] in _hex and l[i+2] in _hex): |
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93 pass |
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94 elif c not in _safeset: |
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95 l[i] = '%%%02X' % ord(c) |
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96 return ''.join(l) |
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97 |
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98 class passwordmgr(urllib2.HTTPPasswordMgrWithDefaultRealm): |
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99 def __init__(self, ui): |
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100 urllib2.HTTPPasswordMgrWithDefaultRealm.__init__(self) |
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101 self.ui = ui |
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102 |
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103 def find_user_password(self, realm, authuri): |
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104 authinfo = urllib2.HTTPPasswordMgrWithDefaultRealm.find_user_password( |
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105 self, realm, authuri) |
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106 user, passwd = authinfo |
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107 if user and passwd: |
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108 self._writedebug(user, passwd) |
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109 return (user, passwd) |
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110 |
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111 if not user: |
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112 auth = self.readauthtoken(authuri) |
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113 if auth: |
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114 user, passwd = auth.get('username'), auth.get('password') |
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115 if not user or not passwd: |
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116 if not self.ui.interactive(): |
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117 raise util.Abort(_('http authorization required')) |
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118 |
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119 self.ui.write(_("http authorization required\n")) |
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120 self.ui.status(_("realm: %s\n") % realm) |
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121 if user: |
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122 self.ui.status(_("user: %s\n") % user) |
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123 else: |
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124 user = self.ui.prompt(_("user:"), default=None) |
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125 |
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126 if not passwd: |
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127 passwd = self.ui.getpass() |
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128 |
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129 self.add_password(realm, authuri, user, passwd) |
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130 self._writedebug(user, passwd) |
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131 return (user, passwd) |
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132 |
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133 def _writedebug(self, user, passwd): |
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134 msg = _('http auth: user %s, password %s\n') |
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135 self.ui.debug(msg % (user, passwd and '*' * len(passwd) or 'not set')) |
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136 |
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137 def readauthtoken(self, uri): |
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138 # Read configuration |
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139 config = dict() |
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140 for key, val in self.ui.configitems('auth'): |
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141 group, setting = key.split('.', 1) |
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142 gdict = config.setdefault(group, dict()) |
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143 gdict[setting] = val |
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144 |
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145 # Find the best match |
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146 scheme, hostpath = uri.split('://', 1) |
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147 bestlen = 0 |
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148 bestauth = None |
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149 for auth in config.itervalues(): |
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150 prefix = auth.get('prefix') |
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151 if not prefix: continue |
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152 p = prefix.split('://', 1) |
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153 if len(p) > 1: |
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154 schemes, prefix = [p[0]], p[1] |
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155 else: |
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156 schemes = (auth.get('schemes') or 'https').split() |
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157 if (prefix == '*' or hostpath.startswith(prefix)) and \ |
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158 len(prefix) > bestlen and scheme in schemes: |
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159 bestlen = len(prefix) |
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160 bestauth = auth |
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161 return bestauth |
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162 |
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163 class proxyhandler(urllib2.ProxyHandler): |
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164 def __init__(self, ui): |
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165 proxyurl = ui.config("http_proxy", "host") or os.getenv('http_proxy') |
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166 # XXX proxyauthinfo = None |
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167 |
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168 if proxyurl: |
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169 # proxy can be proper url or host[:port] |
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170 if not (proxyurl.startswith('http:') or |
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171 proxyurl.startswith('https:')): |
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172 proxyurl = 'http://' + proxyurl + '/' |
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173 snpqf = urlparse.urlsplit(proxyurl) |
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174 proxyscheme, proxynetloc, proxypath, proxyquery, proxyfrag = snpqf |
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175 hpup = netlocsplit(proxynetloc) |
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176 |
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177 proxyhost, proxyport, proxyuser, proxypasswd = hpup |
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178 if not proxyuser: |
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179 proxyuser = ui.config("http_proxy", "user") |
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180 proxypasswd = ui.config("http_proxy", "passwd") |
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181 |
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182 # see if we should use a proxy for this url |
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183 no_list = [ "localhost", "127.0.0.1" ] |
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184 no_list.extend([p.lower() for |
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185 p in ui.configlist("http_proxy", "no")]) |
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186 no_list.extend([p.strip().lower() for |
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187 p in os.getenv("no_proxy", '').split(',') |
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188 if p.strip()]) |
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189 # "http_proxy.always" config is for running tests on localhost |
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190 if ui.configbool("http_proxy", "always"): |
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191 self.no_list = [] |
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192 else: |
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193 self.no_list = no_list |
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194 |
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195 proxyurl = urlparse.urlunsplit(( |
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196 proxyscheme, netlocunsplit(proxyhost, proxyport, |
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197 proxyuser, proxypasswd or ''), |
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198 proxypath, proxyquery, proxyfrag)) |
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199 proxies = {'http': proxyurl, 'https': proxyurl} |
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200 ui.debug(_('proxying through http://%s:%s\n') % |
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201 (proxyhost, proxyport)) |
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202 else: |
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203 proxies = {} |
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204 |
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205 # urllib2 takes proxy values from the environment and those |
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206 # will take precedence if found, so drop them |
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207 for env in ["HTTP_PROXY", "http_proxy", "no_proxy"]: |
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208 try: |
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209 if env in os.environ: |
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210 del os.environ[env] |
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211 except OSError: |
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212 pass |
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213 |
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214 urllib2.ProxyHandler.__init__(self, proxies) |
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215 self.ui = ui |
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216 |
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217 def proxy_open(self, req, proxy, type_): |
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218 host = req.get_host().split(':')[0] |
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219 if host in self.no_list: |
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220 return None |
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221 |
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222 # work around a bug in Python < 2.4.2 |
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223 # (it leaves a "\n" at the end of Proxy-authorization headers) |
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224 baseclass = req.__class__ |
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225 class _request(baseclass): |
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226 def add_header(self, key, val): |
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227 if key.lower() == 'proxy-authorization': |
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228 val = val.strip() |
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229 return baseclass.add_header(self, key, val) |
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230 req.__class__ = _request |
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231 |
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232 return urllib2.ProxyHandler.proxy_open(self, req, proxy, type_) |
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233 |
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234 class httpsendfile(file): |
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235 def __len__(self): |
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236 return os.fstat(self.fileno()).st_size |
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237 |
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238 def _gen_sendfile(connection): |
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239 def _sendfile(self, data): |
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240 # send a file |
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241 if isinstance(data, httpsendfile): |
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242 # if auth required, some data sent twice, so rewind here |
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243 data.seek(0) |
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244 for chunk in util.filechunkiter(data): |
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245 connection.send(self, chunk) |
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246 else: |
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247 connection.send(self, data) |
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248 return _sendfile |
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249 |
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250 has_https = hasattr(urllib2, 'HTTPSHandler') |
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251 if has_https: |
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252 try: |
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253 # avoid using deprecated/broken FakeSocket in python 2.6 |
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254 import ssl |
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255 _ssl_wrap_socket = ssl.wrap_socket |
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256 except ImportError: |
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257 def _ssl_wrap_socket(sock, key_file, cert_file): |
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258 ssl = socket.ssl(sock, key_file, cert_file) |
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259 return httplib.FakeSocket(sock, ssl) |
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260 |
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261 class httpconnection(keepalive.HTTPConnection): |
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262 # must be able to send big bundle as stream. |
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263 send = _gen_sendfile(keepalive.HTTPConnection) |
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264 |
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265 def _proxytunnel(self): |
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266 proxyheaders = dict( |
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267 [(x, self.headers[x]) for x in self.headers |
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268 if x.lower().startswith('proxy-')]) |
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269 self._set_hostport(self.host, self.port) |
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270 self.send('CONNECT %s:%d HTTP/1.0\r\n' % (self.realhost, self.realport)) |
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271 for header in proxyheaders.iteritems(): |
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272 self.send('%s: %s\r\n' % header) |
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273 self.send('\r\n') |
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274 |
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275 # majority of the following code is duplicated from |
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276 # httplib.HTTPConnection as there are no adequate places to |
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277 # override functions to provide the needed functionality |
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278 res = self.response_class(self.sock, |
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279 strict=self.strict, |
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280 method=self._method) |
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281 |
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282 while True: |
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283 version, status, reason = res._read_status() |
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284 if status != httplib.CONTINUE: |
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285 break |
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286 while True: |
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287 skip = res.fp.readline().strip() |
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288 if not skip: |
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289 break |
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290 res.status = status |
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291 res.reason = reason.strip() |
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292 |
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293 if res.status == 200: |
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294 while True: |
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295 line = res.fp.readline() |
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296 if line == '\r\n': |
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297 break |
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298 return True |
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299 |
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300 if version == 'HTTP/1.0': |
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301 res.version = 10 |
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302 elif version.startswith('HTTP/1.'): |
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303 res.version = 11 |
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304 elif version == 'HTTP/0.9': |
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305 res.version = 9 |
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306 else: |
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307 raise httplib.UnknownProtocol(version) |
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308 |
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309 if res.version == 9: |
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310 res.length = None |
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311 res.chunked = 0 |
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312 res.will_close = 1 |
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313 res.msg = httplib.HTTPMessage(cStringIO.StringIO()) |
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314 return False |
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315 |
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316 res.msg = httplib.HTTPMessage(res.fp) |
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317 res.msg.fp = None |
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318 |
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319 # are we using the chunked-style of transfer encoding? |
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320 trenc = res.msg.getheader('transfer-encoding') |
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321 if trenc and trenc.lower() == "chunked": |
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322 res.chunked = 1 |
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323 res.chunk_left = None |
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324 else: |
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325 res.chunked = 0 |
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326 |
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327 # will the connection close at the end of the response? |
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328 res.will_close = res._check_close() |
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329 |
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330 # do we have a Content-Length? |
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331 # NOTE: RFC 2616, S4.4, #3 says we ignore this if tr_enc is "chunked" |
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332 length = res.msg.getheader('content-length') |
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333 if length and not res.chunked: |
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334 try: |
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335 res.length = int(length) |
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336 except ValueError: |
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337 res.length = None |
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338 else: |
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339 if res.length < 0: # ignore nonsensical negative lengths |
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340 res.length = None |
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341 else: |
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342 res.length = None |
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343 |
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344 # does the body have a fixed length? (of zero) |
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345 if (status == httplib.NO_CONTENT or status == httplib.NOT_MODIFIED or |
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346 100 <= status < 200 or # 1xx codes |
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347 res._method == 'HEAD'): |
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348 res.length = 0 |
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349 |
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350 # if the connection remains open, and we aren't using chunked, and |
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351 # a content-length was not provided, then assume that the connection |
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352 # WILL close. |
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353 if (not res.will_close and |
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354 not res.chunked and |
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355 res.length is None): |
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356 res.will_close = 1 |
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357 |
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358 self.proxyres = res |
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359 |
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360 return False |
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361 |
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362 def connect(self): |
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363 if has_https and self.realhost: # use CONNECT proxy |
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364 self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
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365 self.sock.connect((self.host, self.port)) |
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366 if self._proxytunnel(): |
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367 # we do not support client x509 certificates |
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368 self.sock = _ssl_wrap_socket(self.sock, None, None) |
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369 else: |
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370 keepalive.HTTPConnection.connect(self) |
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371 |
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372 def getresponse(self): |
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373 proxyres = getattr(self, 'proxyres', None) |
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374 if proxyres: |
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375 if proxyres.will_close: |
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376 self.close() |
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377 self.proxyres = None |
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378 return proxyres |
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379 return keepalive.HTTPConnection.getresponse(self) |
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380 |
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381 class httphandler(keepalive.HTTPHandler): |
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382 def http_open(self, req): |
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383 return self.do_open(httpconnection, req) |
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384 |
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385 def _start_transaction(self, h, req): |
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386 if req.get_selector() == req.get_full_url(): # has proxy |
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387 urlparts = urlparse.urlparse(req.get_selector()) |
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388 if urlparts[0] == 'https': # only use CONNECT for HTTPS |
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389 if ':' in urlparts[1]: |
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390 realhost, realport = urlparts[1].split(':') |
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391 realport = int(realport) |
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392 else: |
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393 realhost = urlparts[1] |
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394 realport = 443 |
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395 |
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396 h.realhost = realhost |
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397 h.realport = realport |
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398 h.headers = req.headers.copy() |
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399 h.headers.update(self.parent.addheaders) |
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400 return keepalive.HTTPHandler._start_transaction(self, h, req) |
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401 |
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402 h.realhost = None |
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403 h.realport = None |
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404 h.headers = None |
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405 return keepalive.HTTPHandler._start_transaction(self, h, req) |
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406 |
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407 def __del__(self): |
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408 self.close_all() |
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409 |
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410 if has_https: |
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411 class httpsconnection(httplib.HTTPSConnection): |
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412 response_class = keepalive.HTTPResponse |
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413 # must be able to send big bundle as stream. |
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414 send = _gen_sendfile(httplib.HTTPSConnection) |
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415 |
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416 class httpshandler(keepalive.KeepAliveHandler, urllib2.HTTPSHandler): |
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417 def __init__(self, ui): |
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418 keepalive.KeepAliveHandler.__init__(self) |
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419 urllib2.HTTPSHandler.__init__(self) |
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420 self.ui = ui |
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421 self.pwmgr = passwordmgr(self.ui) |
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422 |
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423 def https_open(self, req): |
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424 self.auth = self.pwmgr.readauthtoken(req.get_full_url()) |
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425 return self.do_open(self._makeconnection, req) |
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426 |
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427 def _makeconnection(self, host, port=443, *args, **kwargs): |
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428 keyfile = None |
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429 certfile = None |
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430 |
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431 if args: # key_file |
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432 keyfile = args.pop(0) |
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433 if args: # cert_file |
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434 certfile = args.pop(0) |
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435 |
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436 # if the user has specified different key/cert files in |
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437 # hgrc, we prefer these |
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438 if self.auth and 'key' in self.auth and 'cert' in self.auth: |
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439 keyfile = self.auth['key'] |
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440 certfile = self.auth['cert'] |
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441 |
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442 # let host port take precedence |
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443 if ':' in host and '[' not in host or ']:' in host: |
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444 host, port = host.rsplit(':', 1) |
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445 port = int(port) |
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446 if '[' in host: |
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447 host = host[1:-1] |
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448 |
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449 return httpsconnection(host, port, keyfile, certfile, *args, **kwargs) |
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450 |
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451 # In python < 2.5 AbstractDigestAuthHandler raises a ValueError if |
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452 # it doesn't know about the auth type requested. This can happen if |
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453 # somebody is using BasicAuth and types a bad password. |
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454 class httpdigestauthhandler(urllib2.HTTPDigestAuthHandler): |
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455 def http_error_auth_reqed(self, auth_header, host, req, headers): |
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456 try: |
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457 return urllib2.HTTPDigestAuthHandler.http_error_auth_reqed( |
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458 self, auth_header, host, req, headers) |
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459 except ValueError, inst: |
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460 arg = inst.args[0] |
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461 if arg.startswith("AbstractDigestAuthHandler doesn't know "): |
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462 return |
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463 raise |
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464 |
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465 def getauthinfo(path): |
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466 scheme, netloc, urlpath, query, frag = urlparse.urlsplit(path) |
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467 if not urlpath: |
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468 urlpath = '/' |
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469 if scheme != 'file': |
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470 # XXX: why are we quoting the path again with some smart |
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471 # heuristic here? Anyway, it cannot be done with file:// |
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472 # urls since path encoding is os/fs dependent (see |
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473 # urllib.pathname2url() for details). |
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474 urlpath = quotepath(urlpath) |
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475 host, port, user, passwd = netlocsplit(netloc) |
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476 |
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477 # urllib cannot handle URLs with embedded user or passwd |
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478 url = urlparse.urlunsplit((scheme, netlocunsplit(host, port), |
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479 urlpath, query, frag)) |
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480 if user: |
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481 netloc = host |
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482 if port: |
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483 netloc += ':' + port |
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484 # Python < 2.4.3 uses only the netloc to search for a password |
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485 authinfo = (None, (url, netloc), user, passwd or '') |
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486 else: |
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487 authinfo = None |
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488 return url, authinfo |
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489 |
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490 handlerfuncs = [] |
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491 |
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492 def opener(ui, authinfo=None): |
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493 ''' |
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494 construct an opener suitable for urllib2 |
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495 authinfo will be added to the password manager |
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496 ''' |
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497 handlers = [httphandler()] |
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498 if has_https: |
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499 handlers.append(httpshandler(ui)) |
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500 |
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501 handlers.append(proxyhandler(ui)) |
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502 |
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503 passmgr = passwordmgr(ui) |
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504 if authinfo is not None: |
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505 passmgr.add_password(*authinfo) |
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506 user, passwd = authinfo[2:4] |
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507 ui.debug(_('http auth: user %s, password %s\n') % |
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508 (user, passwd and '*' * len(passwd) or 'not set')) |
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|
509 |
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510 handlers.extend((urllib2.HTTPBasicAuthHandler(passmgr), |
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511 httpdigestauthhandler(passmgr))) |
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512 handlers.extend([h(ui, passmgr) for h in handlerfuncs]) |
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513 opener = urllib2.build_opener(*handlers) |
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514 |
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515 # 1.0 here is the _protocol_ version |
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516 opener.addheaders = [('User-agent', 'mercurial/proto-1.0')] |
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517 opener.addheaders.append(('Accept', 'application/mercurial-0.1')) |
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518 return opener |
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519 |
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520 scheme_re = re.compile(r'^([a-zA-Z0-9+-.]+)://') |
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521 |
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522 def open(ui, url, data=None): |
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523 scheme = None |
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524 m = scheme_re.search(url) |
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525 if m: |
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526 scheme = m.group(1).lower() |
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527 if not scheme: |
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528 path = util.normpath(os.path.abspath(url)) |
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529 url = 'file://' + urllib.pathname2url(path) |
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530 authinfo = None |
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531 else: |
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532 url, authinfo = getauthinfo(url) |
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533 return opener(ui, authinfo).open(url, data) |