Mercurial > cpython-lru_cache-weakref

annotate Modules/_scproxy.c @ 69778:07613ea46dbc

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Merge: I was right, hardconding the localhost IP doesn't work in linux-vserver.
author R David Murray <rdmurray@bitdance.com>
date Mon, 02 May 2011 08:48:00 -0400
parents e332cd95f414
children
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1 /*
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2 * Helper method for urllib to fetch the proxy configuration settings
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3 * using the SystemConfiguration framework.
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4 */
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5 #include <Python.h>
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6 #include <SystemConfiguration/SystemConfiguration.h>
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7
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8 static int32_t
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9 cfnum_to_int32(CFNumberRef num)
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10 {
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11 int32_t result;
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12
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13 CFNumberGetValue(num, kCFNumberSInt32Type, &result);
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14 return result;
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15 }
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16
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17 static PyObject*
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18 cfstring_to_pystring(CFStringRef ref)
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19 {
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20 const char* s;
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21
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22 s = CFStringGetCStringPtr(ref, kCFStringEncodingUTF8);
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23 if (s) {
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24 return PyUnicode_DecodeUTF8(
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25 s, strlen(s), NULL);
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26
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27 } else {
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28 CFIndex len = CFStringGetLength(ref);
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29 Boolean ok;
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30 PyObject* result;
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31 char* buf;
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32
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33 buf = PyMem_Malloc(len*4);
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34 if (buf == NULL) {
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35 PyErr_NoMemory();
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36 return NULL;
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37 }
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38
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39 ok = CFStringGetCString(ref,
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40 buf, len * 4,
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41 kCFStringEncodingUTF8);
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42 if (!ok) {
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43 PyMem_Free(buf);
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44 return NULL;
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45 } else {
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46 result = PyUnicode_DecodeUTF8(
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47 buf, strlen(buf), NULL);
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48 PyMem_Free(buf);
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49 }
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50 return result;
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51 }
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52 }
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53
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54
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55 static PyObject*
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56 get_proxy_settings(PyObject* mod __attribute__((__unused__)))
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57 {
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58 CFDictionaryRef proxyDict = NULL;
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59 CFNumberRef aNum = NULL;
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60 CFArrayRef anArray = NULL;
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61 PyObject* result = NULL;
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62 PyObject* v;
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63 int r;
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64
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65 proxyDict = SCDynamicStoreCopyProxies(NULL);
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66 if (!proxyDict) {
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67 Py_INCREF(Py_None);
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68 return Py_None;
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69 }
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70
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71 result = PyDict_New();
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72 if (result == NULL) goto error;
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73
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74 if (&kSCPropNetProxiesExcludeSimpleHostnames != NULL) {
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75 aNum = CFDictionaryGetValue(proxyDict,
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76 kSCPropNetProxiesExcludeSimpleHostnames);
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77 if (aNum == NULL) {
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78 v = PyBool_FromLong(0);
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79 } else {
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80 v = PyBool_FromLong(cfnum_to_int32(aNum));
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81 }
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82 } else {
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83 v = PyBool_FromLong(0);
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84 }
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85
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86 if (v == NULL) goto error;
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87
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88 r = PyDict_SetItemString(result, "exclude_simple", v);
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89 Py_DECREF(v); v = NULL;
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90 if (r == -1) goto error;
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91
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92 anArray = CFDictionaryGetValue(proxyDict,
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93 kSCPropNetProxiesExceptionsList);
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94 if (anArray != NULL) {
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95 CFIndex len = CFArrayGetCount(anArray);
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96 CFIndex i;
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97 v = PyTuple_New(len);
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98 if (v == NULL) goto error;
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99
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100 r = PyDict_SetItemString(result, "exceptions", v);
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101 Py_DECREF(v);
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102 if (r == -1) goto error;
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103
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104 for (i = 0; i < len; i++) {
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105 CFStringRef aString = NULL;
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106
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107 aString = CFArrayGetValueAtIndex(anArray, i);
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108 if (aString == NULL) {
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109 PyTuple_SetItem(v, i, Py_None);
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110 Py_INCREF(Py_None);
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111 } else {
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112 PyObject* t = cfstring_to_pystring(aString);
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113 if (!t) {
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114 PyTuple_SetItem(v, i, Py_None);
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115 Py_INCREF(Py_None);
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116 } else {
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117 PyTuple_SetItem(v, i, t);
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118 }
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119 }
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120 }
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121 }
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122
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123 CFRelease(proxyDict);
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124 return result;
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125
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126 error:
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127 if (proxyDict) CFRelease(proxyDict);
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128 Py_XDECREF(result);
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129 return NULL;
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130 }
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131
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132 static int
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133 set_proxy(PyObject* proxies, char* proto, CFDictionaryRef proxyDict,
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134 CFStringRef enabledKey,
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135 CFStringRef hostKey, CFStringRef portKey)
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136 {
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137 CFNumberRef aNum;
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138
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139 aNum = CFDictionaryGetValue(proxyDict, enabledKey);
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140 if (aNum && cfnum_to_int32(aNum)) {
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141 CFStringRef hostString;
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142
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143 hostString = CFDictionaryGetValue(proxyDict, hostKey);
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144 aNum = CFDictionaryGetValue(proxyDict, portKey);
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145
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146 if (hostString) {
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147 int r;
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148 PyObject* h = cfstring_to_pystring(hostString);
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149 PyObject* v;
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150 if (h) {
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151 if (aNum) {
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152 int32_t port = cfnum_to_int32(aNum);
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153 v = PyUnicode_FromFormat("http://%U:%ld",
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154 h, (long)port);
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155 } else {
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156 v = PyUnicode_FromFormat("http://%U", h);
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157 }
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158 Py_DECREF(h);
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159 if (!v) return -1;
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160 r = PyDict_SetItemString(proxies, proto,
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161 v);
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162 Py_DECREF(v);
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163 return r;
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164 }
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165 }
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166
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167 }
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168 return 0;
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169 }
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170
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171
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172
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173 static PyObject*
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174 get_proxies(PyObject* mod __attribute__((__unused__)))
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175 {
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176 PyObject* result = NULL;
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177 int r;
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178 CFDictionaryRef proxyDict = NULL;
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179
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180 proxyDict = SCDynamicStoreCopyProxies(NULL);
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181 if (proxyDict == NULL) {
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182 return PyDict_New();
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183 }
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184
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185 result = PyDict_New();
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186 if (result == NULL) goto error;
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187
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188 r = set_proxy(result, "http", proxyDict,
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189 kSCPropNetProxiesHTTPEnable,
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190 kSCPropNetProxiesHTTPProxy,
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191 kSCPropNetProxiesHTTPPort);
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192 if (r == -1) goto error;
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193 r = set_proxy(result, "https", proxyDict,
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194 kSCPropNetProxiesHTTPSEnable,
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195 kSCPropNetProxiesHTTPSProxy,
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196 kSCPropNetProxiesHTTPSPort);
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197 if (r == -1) goto error;
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198 r = set_proxy(result, "ftp", proxyDict,
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199 kSCPropNetProxiesFTPEnable,
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200 kSCPropNetProxiesFTPProxy,
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201 kSCPropNetProxiesFTPPort);
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202 if (r == -1) goto error;
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203 r = set_proxy(result, "gopher", proxyDict,
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204 kSCPropNetProxiesGopherEnable,
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205 kSCPropNetProxiesGopherProxy,
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206 kSCPropNetProxiesGopherPort);
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207 if (r == -1) goto error;
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208
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209 CFRelease(proxyDict);
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210 return result;
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211 error:
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212 if (proxyDict) CFRelease(proxyDict);
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213 Py_XDECREF(result);
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214 return NULL;
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215 }
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216
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217 static PyMethodDef mod_methods[] = {
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218 {
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219 "_get_proxy_settings",
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220 (PyCFunction)get_proxy_settings,
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221 METH_NOARGS,
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222 NULL,
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223 },
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224 {
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225 "_get_proxies",
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226 (PyCFunction)get_proxies,
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227 METH_NOARGS,
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228 NULL,
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229 },
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230 { 0, 0, 0, 0 }
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231 };
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232
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233
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234
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235 static struct PyModuleDef mod_module = {
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236 PyModuleDef_HEAD_INIT,
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237 "_scproxy",
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238 NULL,
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239 -1,
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240 mod_methods,
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241 NULL,
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242 NULL,
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243 NULL,
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244 NULL
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245 };
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246
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247
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248 #ifdef __cplusplus
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249 extern "C" {
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250 #endif
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251
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252 PyObject*
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253 PyInit__scproxy(void)
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254 {
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255 return PyModule_Create(&mod_module);
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256 }
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257
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258 #ifdef __cplusplus
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259 }
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260 #endif
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261