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@@ -1,471 +1,473 b'' | |||
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1 | 1 | # url.py - HTTP handling for mercurial |
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2 | 2 | # |
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3 | 3 | # Copyright 2005, 2006, 2007, 2008 Matt Mackall <mpm@selenic.com> |
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4 | 4 | # Copyright 2006, 2007 Alexis S. L. Carvalho <alexis@cecm.usp.br> |
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5 | 5 | # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
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6 | 6 | # |
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7 | 7 | # This software may be used and distributed according to the terms of the |
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8 | 8 | # GNU General Public License version 2 or any later version. |
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9 | 9 | |
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10 | 10 | import urllib, urllib2, httplib, os, socket, cStringIO |
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11 | 11 | from i18n import _ |
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12 | 12 | import keepalive, util, sslutil |
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13 | 13 | import httpconnection as httpconnectionmod |
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14 | 14 | |
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15 | 15 | class passwordmgr(urllib2.HTTPPasswordMgrWithDefaultRealm): |
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16 | 16 | def __init__(self, ui): |
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17 | 17 | urllib2.HTTPPasswordMgrWithDefaultRealm.__init__(self) |
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18 | 18 | self.ui = ui |
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19 | 19 | |
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20 | 20 | def find_user_password(self, realm, authuri): |
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21 | 21 | authinfo = urllib2.HTTPPasswordMgrWithDefaultRealm.find_user_password( |
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22 | 22 | self, realm, authuri) |
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23 | 23 | user, passwd = authinfo |
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24 | 24 | if user and passwd: |
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25 | 25 | self._writedebug(user, passwd) |
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26 | 26 | return (user, passwd) |
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27 | 27 | |
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28 | 28 | if not user or not passwd: |
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29 | 29 | res = httpconnectionmod.readauthforuri(self.ui, authuri, user) |
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30 | 30 | if res: |
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31 | 31 | group, auth = res |
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32 | 32 | user, passwd = auth.get('username'), auth.get('password') |
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33 | 33 | self.ui.debug("using auth.%s.* for authentication\n" % group) |
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34 | 34 | if not user or not passwd: |
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35 | 35 | if not self.ui.interactive(): |
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36 | 36 | raise util.Abort(_('http authorization required')) |
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37 | 37 | |
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38 | 38 | self.ui.write(_("http authorization required\n")) |
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39 | 39 | self.ui.write(_("realm: %s\n") % realm) |
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40 | 40 | if user: |
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41 | 41 | self.ui.write(_("user: %s\n") % user) |
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42 | 42 | else: |
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43 | 43 | user = self.ui.prompt(_("user:"), default=None) |
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44 | 44 | |
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45 | 45 | if not passwd: |
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46 | 46 | passwd = self.ui.getpass() |
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47 | 47 | |
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48 | 48 | self.add_password(realm, authuri, user, passwd) |
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49 | 49 | self._writedebug(user, passwd) |
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50 | 50 | return (user, passwd) |
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51 | 51 | |
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52 | 52 | def _writedebug(self, user, passwd): |
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53 | 53 | msg = _('http auth: user %s, password %s\n') |
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54 | 54 | self.ui.debug(msg % (user, passwd and '*' * len(passwd) or 'not set')) |
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55 | 55 | |
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56 | 56 | def find_stored_password(self, authuri): |
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57 | 57 | return urllib2.HTTPPasswordMgrWithDefaultRealm.find_user_password( |
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58 | 58 | self, None, authuri) |
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59 | 59 | |
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60 | 60 | class proxyhandler(urllib2.ProxyHandler): |
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61 | 61 | def __init__(self, ui): |
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62 | 62 | proxyurl = ui.config("http_proxy", "host") or os.getenv('http_proxy') |
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63 | 63 | # XXX proxyauthinfo = None |
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64 | 64 | |
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65 | 65 | if proxyurl: |
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66 | 66 | # proxy can be proper url or host[:port] |
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67 | 67 | if not (proxyurl.startswith('http:') or |
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68 | 68 | proxyurl.startswith('https:')): |
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69 | 69 | proxyurl = 'http://' + proxyurl + '/' |
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70 | 70 | proxy = util.url(proxyurl) |
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71 | 71 | if not proxy.user: |
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72 | 72 | proxy.user = ui.config("http_proxy", "user") |
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73 | 73 | proxy.passwd = ui.config("http_proxy", "passwd") |
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74 | 74 | |
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75 | 75 | # see if we should use a proxy for this url |
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76 | 76 | no_list = ["localhost", "127.0.0.1"] |
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77 | 77 | no_list.extend([p.lower() for |
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78 | 78 | p in ui.configlist("http_proxy", "no")]) |
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79 | 79 | no_list.extend([p.strip().lower() for |
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80 | 80 | p in os.getenv("no_proxy", '').split(',') |
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81 | 81 | if p.strip()]) |
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82 | 82 | # "http_proxy.always" config is for running tests on localhost |
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83 | 83 | if ui.configbool("http_proxy", "always"): |
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84 | 84 | self.no_list = [] |
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85 | 85 | else: |
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86 | 86 | self.no_list = no_list |
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87 | 87 | |
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88 | 88 | proxyurl = str(proxy) |
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89 | 89 | proxies = {'http': proxyurl, 'https': proxyurl} |
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90 | 90 | ui.debug('proxying through http://%s:%s\n' % |
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91 | 91 | (proxy.host, proxy.port)) |
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92 | 92 | else: |
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93 | 93 | proxies = {} |
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94 | 94 | |
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95 | 95 | # urllib2 takes proxy values from the environment and those |
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96 |
# will take precedence if found |
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96 | # will take precedence if found. So, if there's a config entry | |
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97 | # defining a proxy, drop the environment ones | |
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98 | if ui.config("http_proxy", "host"): | |
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97 | 99 | for env in ["HTTP_PROXY", "http_proxy", "no_proxy"]: |
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98 | 100 | try: |
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99 | 101 | if env in os.environ: |
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100 | 102 | del os.environ[env] |
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101 | 103 | except OSError: |
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102 | 104 | pass |
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103 | 105 | |
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104 | 106 | urllib2.ProxyHandler.__init__(self, proxies) |
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105 | 107 | self.ui = ui |
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106 | 108 | |
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107 | 109 | def proxy_open(self, req, proxy, type_): |
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108 | 110 | host = req.get_host().split(':')[0] |
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109 | 111 | if host in self.no_list: |
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110 | 112 | return None |
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111 | 113 | |
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112 | 114 | # work around a bug in Python < 2.4.2 |
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113 | 115 | # (it leaves a "\n" at the end of Proxy-authorization headers) |
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114 | 116 | baseclass = req.__class__ |
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115 | 117 | class _request(baseclass): |
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116 | 118 | def add_header(self, key, val): |
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117 | 119 | if key.lower() == 'proxy-authorization': |
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118 | 120 | val = val.strip() |
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119 | 121 | return baseclass.add_header(self, key, val) |
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120 | 122 | req.__class__ = _request |
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121 | 123 | |
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122 | 124 | return urllib2.ProxyHandler.proxy_open(self, req, proxy, type_) |
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123 | 125 | |
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124 | 126 | def _gen_sendfile(orgsend): |
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125 | 127 | def _sendfile(self, data): |
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126 | 128 | # send a file |
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127 | 129 | if isinstance(data, httpconnectionmod.httpsendfile): |
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128 | 130 | # if auth required, some data sent twice, so rewind here |
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129 | 131 | data.seek(0) |
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130 | 132 | for chunk in util.filechunkiter(data): |
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131 | 133 | orgsend(self, chunk) |
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132 | 134 | else: |
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133 | 135 | orgsend(self, data) |
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134 | 136 | return _sendfile |
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135 | 137 | |
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136 | 138 | has_https = hasattr(urllib2, 'HTTPSHandler') |
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137 | 139 | if has_https: |
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138 | 140 | try: |
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139 | 141 | _create_connection = socket.create_connection |
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140 | 142 | except AttributeError: |
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141 | 143 | _GLOBAL_DEFAULT_TIMEOUT = object() |
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142 | 144 | |
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143 | 145 | def _create_connection(address, timeout=_GLOBAL_DEFAULT_TIMEOUT, |
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144 | 146 | source_address=None): |
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145 | 147 | # lifted from Python 2.6 |
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146 | 148 | |
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147 | 149 | msg = "getaddrinfo returns an empty list" |
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148 | 150 | host, port = address |
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149 | 151 | for res in socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM): |
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150 | 152 | af, socktype, proto, canonname, sa = res |
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151 | 153 | sock = None |
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152 | 154 | try: |
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153 | 155 | sock = socket.socket(af, socktype, proto) |
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154 | 156 | if timeout is not _GLOBAL_DEFAULT_TIMEOUT: |
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155 | 157 | sock.settimeout(timeout) |
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156 | 158 | if source_address: |
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157 | 159 | sock.bind(source_address) |
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158 | 160 | sock.connect(sa) |
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159 | 161 | return sock |
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160 | 162 | |
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161 | 163 | except socket.error, msg: |
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162 | 164 | if sock is not None: |
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163 | 165 | sock.close() |
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164 | 166 | |
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165 | 167 | raise socket.error, msg |
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166 | 168 | |
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167 | 169 | class httpconnection(keepalive.HTTPConnection): |
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168 | 170 | # must be able to send big bundle as stream. |
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169 | 171 | send = _gen_sendfile(keepalive.HTTPConnection.send) |
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170 | 172 | |
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171 | 173 | def connect(self): |
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172 | 174 | if has_https and self.realhostport: # use CONNECT proxy |
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173 | 175 | self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
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174 | 176 | self.sock.connect((self.host, self.port)) |
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175 | 177 | if _generic_proxytunnel(self): |
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176 | 178 | # we do not support client x509 certificates |
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177 | 179 | self.sock = sslutil.ssl_wrap_socket(self.sock, None, None) |
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178 | 180 | else: |
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179 | 181 | keepalive.HTTPConnection.connect(self) |
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180 | 182 | |
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181 | 183 | def getresponse(self): |
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182 | 184 | proxyres = getattr(self, 'proxyres', None) |
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183 | 185 | if proxyres: |
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184 | 186 | if proxyres.will_close: |
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185 | 187 | self.close() |
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186 | 188 | self.proxyres = None |
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187 | 189 | return proxyres |
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188 | 190 | return keepalive.HTTPConnection.getresponse(self) |
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189 | 191 | |
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190 | 192 | # general transaction handler to support different ways to handle |
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191 | 193 | # HTTPS proxying before and after Python 2.6.3. |
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192 | 194 | def _generic_start_transaction(handler, h, req): |
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193 | 195 | if hasattr(req, '_tunnel_host') and req._tunnel_host: |
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194 | 196 | tunnel_host = req._tunnel_host |
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195 | 197 | if tunnel_host[:7] not in ['http://', 'https:/']: |
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196 | 198 | tunnel_host = 'https://' + tunnel_host |
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197 | 199 | new_tunnel = True |
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198 | 200 | else: |
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199 | 201 | tunnel_host = req.get_selector() |
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200 | 202 | new_tunnel = False |
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201 | 203 | |
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202 | 204 | if new_tunnel or tunnel_host == req.get_full_url(): # has proxy |
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203 | 205 | u = util.url(tunnel_host) |
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204 | 206 | if new_tunnel or u.scheme == 'https': # only use CONNECT for HTTPS |
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205 | 207 | h.realhostport = ':'.join([u.host, (u.port or '443')]) |
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206 | 208 | h.headers = req.headers.copy() |
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207 | 209 | h.headers.update(handler.parent.addheaders) |
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208 | 210 | return |
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209 | 211 | |
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210 | 212 | h.realhostport = None |
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211 | 213 | h.headers = None |
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212 | 214 | |
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213 | 215 | def _generic_proxytunnel(self): |
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214 | 216 | proxyheaders = dict( |
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215 | 217 | [(x, self.headers[x]) for x in self.headers |
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216 | 218 | if x.lower().startswith('proxy-')]) |
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217 | 219 | self._set_hostport(self.host, self.port) |
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218 | 220 | self.send('CONNECT %s HTTP/1.0\r\n' % self.realhostport) |
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219 | 221 | for header in proxyheaders.iteritems(): |
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220 | 222 | self.send('%s: %s\r\n' % header) |
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221 | 223 | self.send('\r\n') |
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222 | 224 | |
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223 | 225 | # majority of the following code is duplicated from |
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224 | 226 | # httplib.HTTPConnection as there are no adequate places to |
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225 | 227 | # override functions to provide the needed functionality |
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226 | 228 | res = self.response_class(self.sock, |
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227 | 229 | strict=self.strict, |
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228 | 230 | method=self._method) |
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229 | 231 | |
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230 | 232 | while True: |
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231 | 233 | version, status, reason = res._read_status() |
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232 | 234 | if status != httplib.CONTINUE: |
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233 | 235 | break |
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234 | 236 | while True: |
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235 | 237 | skip = res.fp.readline().strip() |
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236 | 238 | if not skip: |
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237 | 239 | break |
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238 | 240 | res.status = status |
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239 | 241 | res.reason = reason.strip() |
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240 | 242 | |
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241 | 243 | if res.status == 200: |
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242 | 244 | while True: |
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243 | 245 | line = res.fp.readline() |
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244 | 246 | if line == '\r\n': |
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245 | 247 | break |
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246 | 248 | return True |
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247 | 249 | |
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248 | 250 | if version == 'HTTP/1.0': |
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249 | 251 | res.version = 10 |
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250 | 252 | elif version.startswith('HTTP/1.'): |
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251 | 253 | res.version = 11 |
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252 | 254 | elif version == 'HTTP/0.9': |
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253 | 255 | res.version = 9 |
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254 | 256 | else: |
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255 | 257 | raise httplib.UnknownProtocol(version) |
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256 | 258 | |
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257 | 259 | if res.version == 9: |
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258 | 260 | res.length = None |
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259 | 261 | res.chunked = 0 |
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260 | 262 | res.will_close = 1 |
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261 | 263 | res.msg = httplib.HTTPMessage(cStringIO.StringIO()) |
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262 | 264 | return False |
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263 | 265 | |
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264 | 266 | res.msg = httplib.HTTPMessage(res.fp) |
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265 | 267 | res.msg.fp = None |
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266 | 268 | |
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267 | 269 | # are we using the chunked-style of transfer encoding? |
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268 | 270 | trenc = res.msg.getheader('transfer-encoding') |
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269 | 271 | if trenc and trenc.lower() == "chunked": |
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270 | 272 | res.chunked = 1 |
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271 | 273 | res.chunk_left = None |
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272 | 274 | else: |
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273 | 275 | res.chunked = 0 |
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274 | 276 | |
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275 | 277 | # will the connection close at the end of the response? |
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276 | 278 | res.will_close = res._check_close() |
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277 | 279 | |
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278 | 280 | # do we have a Content-Length? |
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279 | 281 | # NOTE: RFC 2616, S4.4, #3 says we ignore this if tr_enc is "chunked" |
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280 | 282 | length = res.msg.getheader('content-length') |
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281 | 283 | if length and not res.chunked: |
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282 | 284 | try: |
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283 | 285 | res.length = int(length) |
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284 | 286 | except ValueError: |
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285 | 287 | res.length = None |
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286 | 288 | else: |
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287 | 289 | if res.length < 0: # ignore nonsensical negative lengths |
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288 | 290 | res.length = None |
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289 | 291 | else: |
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290 | 292 | res.length = None |
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291 | 293 | |
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292 | 294 | # does the body have a fixed length? (of zero) |
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293 | 295 | if (status == httplib.NO_CONTENT or status == httplib.NOT_MODIFIED or |
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294 | 296 | 100 <= status < 200 or # 1xx codes |
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295 | 297 | res._method == 'HEAD'): |
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296 | 298 | res.length = 0 |
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297 | 299 | |
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298 | 300 | # if the connection remains open, and we aren't using chunked, and |
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299 | 301 | # a content-length was not provided, then assume that the connection |
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300 | 302 | # WILL close. |
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301 | 303 | if (not res.will_close and |
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302 | 304 | not res.chunked and |
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303 | 305 | res.length is None): |
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304 | 306 | res.will_close = 1 |
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305 | 307 | |
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306 | 308 | self.proxyres = res |
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307 | 309 | |
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308 | 310 | return False |
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309 | 311 | |
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310 | 312 | class httphandler(keepalive.HTTPHandler): |
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311 | 313 | def http_open(self, req): |
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312 | 314 | return self.do_open(httpconnection, req) |
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313 | 315 | |
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314 | 316 | def _start_transaction(self, h, req): |
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315 | 317 | _generic_start_transaction(self, h, req) |
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316 | 318 | return keepalive.HTTPHandler._start_transaction(self, h, req) |
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317 | 319 | |
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318 | 320 | if has_https: |
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319 | 321 | class httpsconnection(httplib.HTTPSConnection): |
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320 | 322 | response_class = keepalive.HTTPResponse |
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321 | 323 | # must be able to send big bundle as stream. |
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322 | 324 | send = _gen_sendfile(keepalive.safesend) |
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323 | 325 | getresponse = keepalive.wrapgetresponse(httplib.HTTPSConnection) |
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324 | 326 | |
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325 | 327 | def connect(self): |
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326 | 328 | self.sock = _create_connection((self.host, self.port)) |
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327 | 329 | |
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328 | 330 | host = self.host |
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329 | 331 | if self.realhostport: # use CONNECT proxy |
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330 | 332 | _generic_proxytunnel(self) |
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331 | 333 | host = self.realhostport.rsplit(':', 1)[0] |
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332 | 334 | self.sock = sslutil.ssl_wrap_socket( |
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333 | 335 | self.sock, self.key_file, self.cert_file, |
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334 | 336 | **sslutil.sslkwargs(self.ui, host)) |
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335 | 337 | sslutil.validator(self.ui, host)(self.sock) |
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336 | 338 | |
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337 | 339 | class httpshandler(keepalive.KeepAliveHandler, urllib2.HTTPSHandler): |
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338 | 340 | def __init__(self, ui): |
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339 | 341 | keepalive.KeepAliveHandler.__init__(self) |
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340 | 342 | urllib2.HTTPSHandler.__init__(self) |
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341 | 343 | self.ui = ui |
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342 | 344 | self.pwmgr = passwordmgr(self.ui) |
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343 | 345 | |
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344 | 346 | def _start_transaction(self, h, req): |
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345 | 347 | _generic_start_transaction(self, h, req) |
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346 | 348 | return keepalive.KeepAliveHandler._start_transaction(self, h, req) |
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347 | 349 | |
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348 | 350 | def https_open(self, req): |
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349 | 351 | # req.get_full_url() does not contain credentials and we may |
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350 | 352 | # need them to match the certificates. |
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351 | 353 | url = req.get_full_url() |
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352 | 354 | user, password = self.pwmgr.find_stored_password(url) |
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353 | 355 | res = httpconnectionmod.readauthforuri(self.ui, url, user) |
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354 | 356 | if res: |
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355 | 357 | group, auth = res |
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356 | 358 | self.auth = auth |
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357 | 359 | self.ui.debug("using auth.%s.* for authentication\n" % group) |
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358 | 360 | else: |
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359 | 361 | self.auth = None |
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360 | 362 | return self.do_open(self._makeconnection, req) |
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361 | 363 | |
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362 | 364 | def _makeconnection(self, host, port=None, *args, **kwargs): |
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363 | 365 | keyfile = None |
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364 | 366 | certfile = None |
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365 | 367 | |
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366 | 368 | if len(args) >= 1: # key_file |
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367 | 369 | keyfile = args[0] |
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368 | 370 | if len(args) >= 2: # cert_file |
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369 | 371 | certfile = args[1] |
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370 | 372 | args = args[2:] |
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371 | 373 | |
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372 | 374 | # if the user has specified different key/cert files in |
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373 | 375 | # hgrc, we prefer these |
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374 | 376 | if self.auth and 'key' in self.auth and 'cert' in self.auth: |
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375 | 377 | keyfile = self.auth['key'] |
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376 | 378 | certfile = self.auth['cert'] |
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377 | 379 | |
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378 | 380 | conn = httpsconnection(host, port, keyfile, certfile, *args, **kwargs) |
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379 | 381 | conn.ui = self.ui |
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380 | 382 | return conn |
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381 | 383 | |
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382 | 384 | class httpdigestauthhandler(urllib2.HTTPDigestAuthHandler): |
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383 | 385 | def __init__(self, *args, **kwargs): |
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384 | 386 | urllib2.HTTPDigestAuthHandler.__init__(self, *args, **kwargs) |
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385 | 387 | self.retried_req = None |
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386 | 388 | |
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387 | 389 | def reset_retry_count(self): |
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388 | 390 | # Python 2.6.5 will call this on 401 or 407 errors and thus loop |
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389 | 391 | # forever. We disable reset_retry_count completely and reset in |
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390 | 392 | # http_error_auth_reqed instead. |
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391 | 393 | pass |
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392 | 394 | |
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393 | 395 | def http_error_auth_reqed(self, auth_header, host, req, headers): |
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394 | 396 | # Reset the retry counter once for each request. |
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395 | 397 | if req is not self.retried_req: |
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396 | 398 | self.retried_req = req |
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397 | 399 | self.retried = 0 |
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398 | 400 | # In python < 2.5 AbstractDigestAuthHandler raises a ValueError if |
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399 | 401 | # it doesn't know about the auth type requested. This can happen if |
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400 | 402 | # somebody is using BasicAuth and types a bad password. |
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401 | 403 | try: |
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402 | 404 | return urllib2.HTTPDigestAuthHandler.http_error_auth_reqed( |
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403 | 405 | self, auth_header, host, req, headers) |
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404 | 406 | except ValueError, inst: |
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405 | 407 | arg = inst.args[0] |
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406 | 408 | if arg.startswith("AbstractDigestAuthHandler doesn't know "): |
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407 | 409 | return |
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408 | 410 | raise |
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409 | 411 | |
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410 | 412 | class httpbasicauthhandler(urllib2.HTTPBasicAuthHandler): |
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411 | 413 | def __init__(self, *args, **kwargs): |
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412 | 414 | urllib2.HTTPBasicAuthHandler.__init__(self, *args, **kwargs) |
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413 | 415 | self.retried_req = None |
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414 | 416 | |
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415 | 417 | def reset_retry_count(self): |
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416 | 418 | # Python 2.6.5 will call this on 401 or 407 errors and thus loop |
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417 | 419 | # forever. We disable reset_retry_count completely and reset in |
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418 | 420 | # http_error_auth_reqed instead. |
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419 | 421 | pass |
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420 | 422 | |
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421 | 423 | def http_error_auth_reqed(self, auth_header, host, req, headers): |
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422 | 424 | # Reset the retry counter once for each request. |
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423 | 425 | if req is not self.retried_req: |
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424 | 426 | self.retried_req = req |
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425 | 427 | self.retried = 0 |
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426 | 428 | return urllib2.HTTPBasicAuthHandler.http_error_auth_reqed( |
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427 | 429 | self, auth_header, host, req, headers) |
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428 | 430 | |
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429 | 431 | handlerfuncs = [] |
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430 | 432 | |
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431 | 433 | def opener(ui, authinfo=None): |
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432 | 434 | ''' |
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433 | 435 | construct an opener suitable for urllib2 |
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434 | 436 | authinfo will be added to the password manager |
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435 | 437 | ''' |
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436 | 438 | if ui.configbool('ui', 'usehttp2', False): |
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437 | 439 | handlers = [httpconnectionmod.http2handler(ui, passwordmgr(ui))] |
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438 | 440 | else: |
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439 | 441 | handlers = [httphandler()] |
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440 | 442 | if has_https: |
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441 | 443 | handlers.append(httpshandler(ui)) |
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442 | 444 | |
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443 | 445 | handlers.append(proxyhandler(ui)) |
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444 | 446 | |
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445 | 447 | passmgr = passwordmgr(ui) |
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446 | 448 | if authinfo is not None: |
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447 | 449 | passmgr.add_password(*authinfo) |
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448 | 450 | user, passwd = authinfo[2:4] |
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449 | 451 | ui.debug('http auth: user %s, password %s\n' % |
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450 | 452 | (user, passwd and '*' * len(passwd) or 'not set')) |
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451 | 453 | |
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452 | 454 | handlers.extend((httpbasicauthhandler(passmgr), |
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453 | 455 | httpdigestauthhandler(passmgr))) |
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454 | 456 | handlers.extend([h(ui, passmgr) for h in handlerfuncs]) |
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455 | 457 | opener = urllib2.build_opener(*handlers) |
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456 | 458 | |
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457 | 459 | # 1.0 here is the _protocol_ version |
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458 | 460 | opener.addheaders = [('User-agent', 'mercurial/proto-1.0')] |
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459 | 461 | opener.addheaders.append(('Accept', 'application/mercurial-0.1')) |
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460 | 462 | return opener |
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461 | 463 | |
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462 | 464 | def open(ui, url_, data=None): |
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463 | 465 | u = util.url(url_) |
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464 | 466 | if u.scheme: |
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465 | 467 | u.scheme = u.scheme.lower() |
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466 | 468 | url_, authinfo = u.authinfo() |
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467 | 469 | else: |
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468 | 470 | path = util.normpath(os.path.abspath(url_)) |
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469 | 471 | url_ = 'file://' + urllib.pathname2url(path) |
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470 | 472 | authinfo = None |
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471 | 473 | return opener(ui, authinfo).open(url_, data) |
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