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annotate ui/sslconnection_curl.cpp @ 956:879a634d0a40

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(issue41) Add proxy support
author Andre Heinecke <andre.heinecke@intevation.de>
date Wed, 27 Aug 2014 16:31:40 +0200
parents c8be25c83ff6
children 6a3d284b9c16
rev   line source
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Andre Heinecke <andre.heinecke@intevation.de>
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1 /* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU GPL (v>=2)
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5 * and comes with ABSOLUTELY NO WARRANTY!
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6 * See LICENSE.txt for details.
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7 */
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8
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9 #include "sslconnection_curl.h"
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10 #include <QSaveFile>
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11
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12 #define CONNECTION_DEBUG
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13
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14 SSLConnectionCurl::SSLConnectionCurl(const QString& url,
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15 const QByteArray& certificate):
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16 SSLConnection (url, certificate),
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17 mCurl (NULL)
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18 {
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19 if (certificate.isEmpty()) {
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20 /* Security: curl does not support leaf certificate pinning. So
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21 * while the bare connection pins the certificate directly the
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22 * curl implementation pins the issuer of the peer certificate
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23 *
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24 * CURLINFO_TLS_SESSION is also not implmented for polarssl
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25 * so there is no way to obtain / verify peer certificate manually
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26 * at this point.
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27 **/
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28 #ifdef RELEASE_BUILD
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29 #error "Curl release build is not supported at this moment."
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30 #else
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31 QFile certResource(":certs/geotrust");
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32 #endif
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33 certResource.open(QFile::ReadOnly);
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34 mPinnedCert = certResource.readAll();
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35 certResource.close();
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36 }
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37
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38 curl_global_init(CURL_GLOBAL_DEFAULT);
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39 mCurl = curl_easy_init();
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40
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41 if (!mCurl) {
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42 qDebug() << "Failed to initialize curl";
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43 return;
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44 }
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45
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46 if (curl_easy_setopt(mCurl, CURLOPT_SSL_VERIFYPEER, 1L) != CURLE_OK) {
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47 /* Should be default anyway */
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48 qDebug() << "Setting verifypeer failed";
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49 return;
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50 }
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51
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52 if (curl_easy_setopt(mCurl, CURLOPT_ERRORBUFFER, mErrBuf) != CURLE_OK) {
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53 qDebug() << "Setting errorbuf failed";
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54 return;
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55 }
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56
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57 mCertFile.open();
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58 if (mCertFile.write(mPinnedCert) != mPinnedCert.size()) {
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59 qDebug() << "Failed to write temporary certificate";
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60 return;
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61 }
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62 mCertFile.close();
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63
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64 if (curl_easy_setopt(mCurl, CURLOPT_CAINFO,
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65 mCertFile.fileName().toUtf8().constData()) != CURLE_OK) {
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66 qDebug() << "Failed to write temporary certificate";
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67 return;
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68 }
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69 mInitialized = true;
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70
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71 #ifdef CONNECTION_DEBUG
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72 curl_easy_setopt(mCurl, CURLOPT_VERBOSE, 1L);
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73 #endif
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74 }
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75
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76 SSLConnectionCurl::~SSLConnectionCurl() {
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77 if (mCurl) {
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78 curl_easy_cleanup (mCurl);
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79 }
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80 if (mInitialized) {
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81 mCertFile.close();
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82 }
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83 curl_global_cleanup();
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84 }
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85
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86 int SSLConnectionCurl::connect() {
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87 CURLcode retval;
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88
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89 if (curl_easy_setopt(mCurl, CURLOPT_URL, mUrl.toEncoded().constData()) != CURLE_OK) {
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90 qDebug() << "Failed to set URL";
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91 return -1;
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92 }
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93
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94 if (curl_easy_setopt(mCurl, CURLOPT_CONNECT_ONLY, 1L) != CURLE_OK) {
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95 qDebug() << "Failed to set connect only option";
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96 return -1;
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97 }
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98 retval = curl_easy_perform(mCurl);
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99 if (retval != CURLE_OK) {
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100 qDebug() << "Failed to connect: " << mErrBuf << " retval: " << retval;
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101 if (retval == CURLE_PEER_FAILED_VERIFICATION) {
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102 mErrorState = InvalidCertificate;
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103 return -1;
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104 }
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105
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106 mErrorState = NoConnection;
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107 return -1;
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108 }
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109 mConnected = true;
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110 return 0;
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111 }
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112
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113 /* Globally do this as we can't pass this to the c function */
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114 size_t ssl_curl_max_write, ssl_curl_written;
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115
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116 size_t write_data(void *ptr, size_t size, size_t nmemb,
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117 QSaveFile *fp)
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118 {
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119 qDebug() << "Writing size: " << size << " * " << nmemb;
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120 if (ssl_curl_max_write < ssl_curl_written) {
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121 qDebug() << "Aborting write. Too much data.";
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122 return 0;
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123 }
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124 size_t written = fp->write((const char *)ptr, size * nmemb);
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125 if (written != size * nmemb) {
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126 qDebug() << "Failed to write data. Written: " << written
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127 << " requested: " << size * nmemb;
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128 return 0;
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129 }
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130 ssl_curl_written += written;
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131 return written;
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132 }
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133
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134 bool SSLConnectionCurl::downloadFile(const QString &resource,
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135 const QString &fileName,
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136 size_t maxSize)
908
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137 {
910
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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138 QSaveFile outputFile(fileName);
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139 ssl_curl_written = 0;
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140 ssl_curl_max_write = maxSize;
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141 // Open / Create the file to write to.
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142 if (!outputFile.open(QIODevice::WriteOnly)) {
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143 qDebug() << "Failed to open file";
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144 return false;
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145 }
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146 QUrl urlCopy = mUrl;
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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147 urlCopy.setPath(resource);
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d1c951b3012d Curl based implementation of sslconnection
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148
910
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149 if (curl_easy_setopt(mCurl, CURLOPT_URL, urlCopy.toEncoded().constData()) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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150 qDebug() << "Failed to set URL";
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151 return false;
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152 }
908
d1c951b3012d Curl based implementation of sslconnection
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153
910
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154 if (curl_easy_setopt(mCurl, CURLOPT_CONNECT_ONLY, 0L) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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diff changeset
155 qDebug() << "Failed to set connect";
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156 return false;
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157 }
908
d1c951b3012d Curl based implementation of sslconnection
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158
910
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159 if (curl_easy_setopt(mCurl, CURLOPT_HEADER, 0L) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
diff changeset
160 qDebug() << "Failed to set header";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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161 return false;
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162 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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163
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
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164 if (curl_easy_setopt(mCurl, CURLOPT_NOBODY, 0L) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
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165 qDebug() << "Failed to set no body";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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166 return false;
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parents: 908
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167 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
diff changeset
168
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
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169 if (curl_easy_setopt(mCurl, CURLOPT_WRITEFUNCTION, write_data) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
170 qDebug() << "Failed to set write function";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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171 return false;
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
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172 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
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173
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
diff changeset
174 if (curl_easy_setopt(mCurl, CURLOPT_WRITEDATA, &outputFile) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
175 qDebug() << "Failed to set write function";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
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176 return false;
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
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177 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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178
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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diff changeset
179 if (curl_easy_perform (mCurl) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
180 qDebug() << "Failed to perform download.";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
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181 return false;
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
182 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
183
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
184 if (!outputFile.commit()) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
185 qDebug() << "Failed to commit data to filesystem.";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
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186 return false;
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
187 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
188
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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189 return true;
908
d1c951b3012d Curl based implementation of sslconnection
Andre Heinecke <andre.heinecke@intevation.de>
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190 }
910
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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diff changeset
191
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
192 QDateTime SSLConnectionCurl::getLastModifiedHeader(const QString &resource) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
193 QUrl urlCopy = mUrl;
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
diff changeset
194 urlCopy.setPath(resource);
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
195
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
diff changeset
196 if (curl_easy_setopt(mCurl, CURLOPT_URL, urlCopy.toEncoded().constData()) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
197 qDebug() << "Failed to set URL";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
diff changeset
198 return QDateTime();
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
199 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
200
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
201 if (curl_easy_setopt(mCurl, CURLOPT_CONNECT_ONLY, 0L) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
202 qDebug() << "Failed to set connect";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
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parents: 908
diff changeset
203 return QDateTime();
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
204 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
205
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
206 if (curl_easy_setopt(mCurl, CURLOPT_HEADER, 1L) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
207 qDebug() << "Failed to set header";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
208 return QDateTime();
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
209 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
210
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
211 if (curl_easy_setopt(mCurl, CURLOPT_NOBODY, 1L) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
212 qDebug() << "Failed to set no body";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
213 return QDateTime();
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
214 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
215
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
216 if (curl_easy_setopt(mCurl, CURLOPT_FILETIME, 1L) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
217 qDebug() << "Failed to set filetime";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
218 return QDateTime();
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
219 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
220
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
221 if (curl_easy_perform (mCurl) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
222 qDebug() << "Failed to perform last modified check.";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
223 return QDateTime();
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
224 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
225 long filetime = 0;
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
226
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
227 if (curl_easy_getinfo (mCurl, CURLINFO_FILETIME, &filetime) != CURLE_OK) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
228 qDebug() << "Failed to get filetime";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
229 return QDateTime();
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
230 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
231
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
232 if (filetime == -1) {
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
233 qDebug() << "Invalid Time";
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
234 return QDateTime();
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
235 }
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
236 return QDateTime::fromTime_t(filetime);
eaed02defe6a More SSLConnection refactoring. Fixes curl downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 908
diff changeset
237 }
956
879a634d0a40 (issue41) Add proxy support
Andre Heinecke <andre.heinecke@intevation.de>
parents: 942
diff changeset
238
879a634d0a40 (issue41) Add proxy support
Andre Heinecke <andre.heinecke@intevation.de>
parents: 942
diff changeset
239 void SSLConnectionCurl::setProxy(const QUrl& proxyUrl) {
879a634d0a40 (issue41) Add proxy support
Andre Heinecke <andre.heinecke@intevation.de>
parents: 942
diff changeset
240 if (curl_easy_setopt(mCurl, CURLOPT_PROXY, proxyUrl.toEncoded().constData()) != CURLE_OK) {
879a634d0a40 (issue41) Add proxy support
Andre Heinecke <andre.heinecke@intevation.de>
parents: 942
diff changeset
241 qDebug() << "Failed to set proxy";
879a634d0a40 (issue41) Add proxy support
Andre Heinecke <andre.heinecke@intevation.de>
parents: 942
diff changeset
242 return;
879a634d0a40 (issue41) Add proxy support
Andre Heinecke <andre.heinecke@intevation.de>
parents: 942
diff changeset
243 }
879a634d0a40 (issue41) Add proxy support
Andre Heinecke <andre.heinecke@intevation.de>
parents: 942
diff changeset
244 qDebug() << "Set proxy to: " << proxyUrl;
879a634d0a40 (issue41) Add proxy support
Andre Heinecke <andre.heinecke@intevation.de>
parents: 942
diff changeset
245 }
http://wald.intevation.org/projects/trustbridge/