Mercurial > trustbridge

annotate ui/downloader_win.cpp @ 509:794ff2a4700a

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Backed out changeset 27bcdee4e4a6 Make clean trap
author Andre Heinecke <aheinecke@intevation.de>
date Mon, 28 Apr 2014 10:15:08 +0000
parents 09bb19e5e369
children 82fab0c689bf
rev   line source
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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 * @file downloader_win.cpp
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10 * @brief Downloader implementation for Windows
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11 *
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12 * We use Windows API here instead of Qt because we want to avoid
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13 * QtNetworks SSL stack which is based on OpenSSL and so
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14 * we might be incompatible with GPL code. Also using the
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15 * native API means that the security of the SSL implementation
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16 * is tied to the security of the system.
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17 *
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18 */
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19 #include "downloader.h"
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20 #ifdef Q_OS_WIN
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21 #ifndef MYVERSION
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22 #define MYVERSION "1"
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23 #endif
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24
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25 #include <windows.h>
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26 #include <winhttp.h>
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27
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28 #include <QDebug>
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29 #include <QDateTime>
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30 #include <QSaveFile>
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31 #include <QFileInfo>
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32
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33 #define DEBUG if (1) qDebug() << __PRETTY_FUNCTION__
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34
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35 #define MAX_SW_SIZE 10485760
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36 #define MAX_LIST_SIZE 1048576
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37 /** @brief Download a file from the Internet
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38 *
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39 * @param[in] HSession the session to work in.
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40 * @param[in] HConnect the connection to use.
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41 * @param[in] resource the resource to download.
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42 * @param[in] filename where the file should be saved.
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43 * @param[in] maxSize maximum amount of bytes to download
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44 *
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45 * @returns True if the download was successful.
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46 */
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47 bool downloadFile(HINTERNET hSession, HINTERNET hConnect,
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48 LPCWSTR resource, const QString &filename, DWORD maxSize);
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49
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50 /** @brief get the last modified header of a resource.
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51 *
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52 * On error call getLastError to get extended error information.
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53 * This function still does not do any networking but only initializes
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54 * it.
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55 *
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56 * @param[in] HSession the session to work in.
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57 * @param[in] HConnect the connection to use.
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58 * @param[in] resource the resource to check the last-modified date on
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59 *
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60 * @returns the last modified date or a null datetime in case of errors
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61 */
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62 QDateTime getLastModifiedHeader(HINTERNET hSession,
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63 HINTERNET hConnect, LPCWSTR resource);
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64
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65 /** @brief verify that the certificate of the request matches
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66 *
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67 * Validates the certificate against the member variable certificate
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68 *
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69 * @param[in] hRequest: The request from which to get the certificate
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70 *
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71 * @returns True if the certificate exactly matches the one in hRequest
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72 */
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73
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74 bool verifyCertificate(HINTERNET hRequest);
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75
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76
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77 #define LIST_RESOURCE "/incoming/aheinecke/test"
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78 #define SW_RESOURCE "/incoming/aheinecke/test"
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79
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80 /** @brief A wrapper around a HINTERNET structure that handles closing
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81 *
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82 * Holds a HINTERNET structure and closes it if necessary on destruction.
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83 *
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84 */
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85 class SmartHINTERNET {
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86 public:
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87 SmartHINTERNET() : handle(NULL) {}
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88
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89 ~SmartHINTERNET() {
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90 if (handle) {
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91 WinHttpCloseHandle(handle);
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92 }
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93 }
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94
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95 HINTERNET handle;
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96 };
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97
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98 /** @brief Qt wrapper around FormatMessage
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99 *
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100 * @returns The error message of the error that occurred
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101 */
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102 const QString getLastErrorMsg() {
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103 LPWSTR bufPtr = NULL;
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104 DWORD err = GetLastError();
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105 FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
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106 FORMAT_MESSAGE_FROM_SYSTEM |
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107 FORMAT_MESSAGE_IGNORE_INSERTS,
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108 NULL, err, 0, (LPWSTR)&bufPtr, 0, NULL);
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109 if (!bufPtr) {
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110 HMODULE hWinhttp = GetModuleHandleW(L"winhttp");
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111 if (hWinhttp) {
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112 FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
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113 FORMAT_MESSAGE_FROM_HMODULE |
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114 FORMAT_MESSAGE_IGNORE_INSERTS,
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115 hWinhttp, HRESULT_CODE(err), 0,
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116 (LPWSTR)&bufPtr, 0, NULL);
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117 }
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118 }
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119 const QString result =
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120 (bufPtr) ? QString::fromUtf16((const ushort*)bufPtr).trimmed() :
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121 QString("Unknown Error %1").arg(err);
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122 LocalFree(bufPtr);
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123 return result;
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124 }
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125
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126
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127 /** @brief open a session with appropriate proxy settings
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128 *
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129 * @param[inout] *pHSession pointer to a HInternet structure
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130 *
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131 * On error call getLastError to get extended error information.
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132 *
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133 * @returns True on success, false on error.
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134 */
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135
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136
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137 bool openSession(HINTERNET *pHSession)
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138 {
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139 WINHTTP_CURRENT_USER_IE_PROXY_CONFIG proxyConfig;
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140
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141 DEBUG;
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142 if (!pHSession) {
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143 SetLastError(ERROR_INVALID_PARAMETER);
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144 return false;
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145 }
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146
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147 memset(&proxyConfig, 0, sizeof (WINHTTP_CURRENT_USER_IE_PROXY_CONFIG));
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148
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149 if (WinHttpGetIEProxyConfigForCurrentUser(&proxyConfig)) {
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150 if (proxyConfig.fAutoDetect) {
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151 // TODO Handle this
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152 qDebug() << "Autodetect is set";
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153 }
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154
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155 if (proxyConfig.lpszProxy || proxyConfig.lpszProxyBypass) {
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156 DEBUG << "Using proxies.";
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157 }
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158
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159 if (proxyConfig.lpszProxy) {
409
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160 *pHSession = WinHttpOpen(L"TrustBridge "MYVERSION,
11
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161 WINHTTP_ACCESS_TYPE_NAMED_PROXY,
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162 proxyConfig.lpszProxy,
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163 proxyConfig.lpszProxyBypass, 0);
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164 }
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165 }
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166
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167 if (!*pHSession) {
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168 DEBUG << "No IE Proxy falling back to default proxy";
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169 *pHSession = WinHttpOpen(L"TrustBridge "MYVERSION,
11
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170 WINHTTP_ACCESS_TYPE_DEFAULT_PROXY,
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171 WINHTTP_NO_PROXY_NAME,
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172 WINHTTP_NO_PROXY_BYPASS, 0);
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173 }
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174 // Cleanup
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175 if (proxyConfig.lpszAutoConfigUrl) {
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176 GlobalFree(proxyConfig.lpszAutoConfigUrl);
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177 }
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178
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179 if (proxyConfig.lpszProxy) {
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180 GlobalFree(proxyConfig.lpszProxy);
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181 }
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182
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183 if (proxyConfig.lpszProxyBypass) {
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184 GlobalFree(proxyConfig.lpszProxyBypass);
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185 }
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186 return *pHSession;
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187 }
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188
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189
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190 /** @brief initialize a connection in the session
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191 *
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192 * @param[in] HSession the session to work in.
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193 * @param[inout] *pHConnect pointer to the connection.
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194 * @param[in] url pointer to the URL in wchar representation.
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195 *
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196 * On error call getLastError to get extended error information.
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197 *
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198 * @returns True on success, false on error.
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199 */
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200 bool initializeConnection(HINTERNET hSession, HINTERNET *pHConnect,
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201 LPCWSTR url)
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202 {
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203 DEBUG;
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204 if (!hSession || !pHConnect) {
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205 SetLastError(ERROR_INVALID_PARAMETER);
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206 return false;
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207 }
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208 // Initialize connection. No request is done here.
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209 *pHConnect = WinHttpConnect(hSession, url,
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210 INTERNET_DEFAULT_HTTPS_PORT, 0);
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211
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212 return *pHConnect;
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213 }
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214
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215 /** @brief Create a request
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216 *
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217 * @param[in] HSession the session to work in.
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218 * @param[in] HConnect the connection to use.
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219 * @param[inout] *pHRequest pointer to the request structure to be filled.
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220 * @param[in] requestType the HTTP request to be made default is GET
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221 * @param[in] resource pointer to the resource to request in wchar
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222 * representation.
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223 *
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224 * On error call getLastError to get extended error information.
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225 * This function still does not do any networking but only initializes
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226 * it.
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227 *
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228 * @returns True on success, false on error.
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229 */
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230
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231 bool createRequest(HINTERNET hSession, HINTERNET hConnect,
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232 HINTERNET *pHRequest, LPCWSTR requestType, LPCWSTR resource)
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233 {
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234 DWORD dwSSLFlag;
11
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235 DEBUG;
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236 if (!hSession || !hConnect || !pHRequest) {
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237 SetLastError(ERROR_INVALID_PARAMETER);
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238 return false;
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239 }
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240
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241 *pHRequest = WinHttpOpenRequest(hConnect, requestType, resource,
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242 NULL, WINHTTP_NO_REFERER,
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243 WINHTTP_DEFAULT_ACCEPT_TYPES,
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244 WINHTTP_FLAG_SECURE);
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245
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246 dwSSLFlag = SECURITY_FLAG_IGNORE_UNKNOWN_CA;
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247 dwSSLFlag |= SECURITY_FLAG_IGNORE_CERT_DATE_INVALID;
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248 dwSSLFlag |= SECURITY_FLAG_IGNORE_CERT_CN_INVALID;
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249 dwSSLFlag |= SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE;
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250
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251 WinHttpSetOption(*pHRequest, WINHTTP_OPTION_SECURITY_FLAGS,
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252 &dwSSLFlag, sizeof(dwSSLFlag));
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253
11
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254 return *pHRequest;
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255 }
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256
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257 bool Downloader::verifyCertificate(HINTERNET hRequest)
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258 {
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259 CERT_CONTEXT *certContext = NULL;
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260 DWORD certContextLen = sizeof(CERT_CONTEXT);
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261 bool retval = false;
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262
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263 if (!WinHttpQueryOption(hRequest,
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264 WINHTTP_OPTION_SERVER_CERT_CONTEXT,
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265 &certContext,
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266 &certContextLen)) {
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267 DEBUG << "Unable to get server certificate";
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268 return false;
11
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269 }
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270
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271 QByteArray serverCert ((const char *) certContext->pbCertEncoded,
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272 certContext->cbCertEncoded);
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273
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274 retval = (serverCert == mCert);
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275
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276 if (!retval) {
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277 DEBUG << "Certificate is not the same as the pinned one!"
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278 << "Base64 cert: " << serverCert.toBase64();
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279 emit error("Invalid certificate", InvalidCertificate);
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280 }
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281
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282 CertFreeCertificateContext(certContext);
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283 return retval;
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284 }
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285
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diff changeset
286 QDateTime Downloader::getLastModifiedHeader(HINTERNET hSession,
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287 HINTERNET hConnect, LPCWSTR resource)
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288 {
23
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diff changeset
289 SmartHINTERNET sHRequest;
15
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290 SYSTEMTIME lMod;
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291 DWORD sizeOfSystemtime = sizeof (SYSTEMTIME);
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292 QDateTime retval;
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293
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294 memset(&lMod, 0, sizeof (SYSTEMTIME));
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295
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296 if (!hSession || !hConnect || !resource) {
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diff changeset
297 SetLastError(ERROR_INVALID_PARAMETER);
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298 return retval;
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299 }
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300
23
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301 if (!createRequest(hSession, hConnect, &sHRequest.handle, L"HEAD",
15
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diff changeset
302 resource)) {
23
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303 return retval;
11
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304 }
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305
23
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306 if (!WinHttpSendRequest(sHRequest.handle,
15
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diff changeset
307 WINHTTP_NO_ADDITIONAL_HEADERS,
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308 0, WINHTTP_NO_REQUEST_DATA, 0,
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diff changeset
309 0, 0)) {
23
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diff changeset
310 return retval;
11
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311 }
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312
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313
23
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314 if (!WinHttpReceiveResponse(sHRequest.handle, NULL)) {
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315 return retval;
11
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316 }
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317
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318 if (!verifyCertificate(sHRequest.handle)) {
15
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319 DEBUG << "Certificate verification failed";
23
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320 return retval;
11
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321 }
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322
23
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323 if (!(WinHttpQueryHeaders(sHRequest.handle,
15
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diff changeset
324 WINHTTP_QUERY_LAST_MODIFIED |
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diff changeset
325 WINHTTP_QUERY_FLAG_SYSTEMTIME,
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diff changeset
326 NULL,
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327 &lMod,
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328 &sizeOfSystemtime,
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diff changeset
329 WINHTTP_NO_HEADER_INDEX))) {
23
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330 return retval;
15
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331 }
11
7e2f14c7aba2 Split up downloader component and further implement it
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332
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333 retval = QDateTime(QDate(lMod.wYear, lMod.wMonth, lMod.wDay),
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334 QTime(lMod.wHour, lMod.wMinute, lMod.wSecond,
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diff changeset
335 lMod.wMilliseconds),
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diff changeset
336 Qt::UTC);
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337 return retval;
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338 }
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diff changeset
339
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340 bool Downloader::downloadFile(HINTERNET hSession, HINTERNET hConnect,
17
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341 LPCWSTR resource, const QString &fileName, DWORD maxSize)
15
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342 {
23
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diff changeset
343 SmartHINTERNET sHRequest;
15
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344 bool retval = false;
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345 DWORD bytesAvailable = 0,
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346 bytesRead = 0,
17
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diff changeset
347 totalDownloaded = 0,
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348 contentLength = 0,
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349 sizeOfDWORD = sizeof (DWORD);
15
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diff changeset
350
17
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diff changeset
351 QSaveFile outputFile(fileName);
15
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diff changeset
352
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diff changeset
353 if (!hSession || !hConnect || !resource) {
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diff changeset
354 SetLastError(ERROR_INVALID_PARAMETER);
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diff changeset
355 return retval;
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diff changeset
356 }
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diff changeset
357
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
358 if (!createRequest(hSession, hConnect, &sHRequest.handle, L"GET",
15
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diff changeset
359 resource)) {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
360 return retval;
15
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diff changeset
361 }
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diff changeset
362
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
363 if (!WinHttpSendRequest(sHRequest.handle,
15
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diff changeset
364 WINHTTP_NO_ADDITIONAL_HEADERS,
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
365 0, WINHTTP_NO_REQUEST_DATA, 0,
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
366 0, 0)) {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
367 return retval;
15
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
368 }
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
369
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
370
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
371 if (!WinHttpReceiveResponse(sHRequest.handle, NULL)) {
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
372 return retval;
15
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
373 }
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diff changeset
374
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
375 if (!verifyCertificate(sHRequest.handle)) {
15
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diff changeset
376 DEBUG << "Certificate verification failed";
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
377 return retval;
15
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
378 }
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diff changeset
379
17
c12825a651ed Read out content-length and use this to skip existing files
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parents: 15
diff changeset
380
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
381 if (!(WinHttpQueryHeaders(sHRequest.handle,
17
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
382 WINHTTP_QUERY_CONTENT_LENGTH |
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
383 WINHTTP_QUERY_FLAG_NUMBER,
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
384 NULL,
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
385 &contentLength,
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
386 &sizeOfDWORD,
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
387 WINHTTP_NO_HEADER_INDEX))) {
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
388 // Continue anyway as we later really check how
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
389 // much we download.
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
390 DEBUG << "No content-length";
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
391 }
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
392
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
393 if (contentLength > maxSize) {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
394 return retval;
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
395 }
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
396
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
397 if (contentLength) {
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
398 QFileInfo finf(fileName);
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
399 if (finf.exists() && finf.isReadable() &&
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
400 finf.size() == contentLength) {
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
401 // We already have data of the same size
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
402 // No need to waste bandwidth.
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
403 DEBUG << "Skipping download because file exists";
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
404 retval = true;
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
405 return retval;
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
406 }
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
407 }
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
408
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
409 // Open / Create the file to write to.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
410 if (!outputFile.open(QIODevice::WriteOnly)) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
411 DEBUG << "Failed to open file";
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
412 return retval;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
413 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
414
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
415 DEBUG << "output file size: " << outputFile.size();
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
416 do
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
417 {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
418 char outBuf[8192]; // 8KB is the internal buffer size of winhttp
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
419 memset(outBuf, 0, sizeof(outBuf));
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
420 bytesRead = 0;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
421
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
422 if (!WinHttpQueryDataAvailable(sHRequest.handle, &bytesAvailable)) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
423 DEBUG << "Querying for available data failed";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
424 retval = false;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
425 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
426 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
427
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
428 if (!bytesAvailable) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
429 // Might indicate that we are done.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
430 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
431 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
432
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
433 if (bytesAvailable > maxSize) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
434 DEBUG << "File to large";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
435 retval = false;
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
436 SetLastError(ERROR_INVALID_DATA);
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
437 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
438 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
439
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
440 if (!WinHttpReadData(sHRequest.handle, (LPVOID)outBuf,
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
441 sizeof(outBuf), &bytesRead)) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
442 DEBUG << "Error reading data";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
443 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
444 } else {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
445 if (bytesRead) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
446 // Write data to file.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
447 if (outputFile.write(outBuf, bytesRead) !=
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
448 bytesRead) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
449 DEBUG << "Error writing to file.";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
450 retval = false;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
451 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
452 // Completed a read / write cycle. If not error follows
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
453 // the download was successful.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
454 retval = true;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
455 } else {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
456 // Should not happen as we queried for available
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
457 // bytes before and the function did not return an
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
458 // error.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
459 DEBUG << "Unable to read available data";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
460 retval = false;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
461 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
462 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
463 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
464 totalDownloaded += bytesRead;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
465
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
466 if (totalDownloaded > maxSize) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
467 DEBUG << "Downloaded too much data. Breaking.";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
468 retval = false;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
469 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
470 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
471 } while (bytesAvailable > 0);
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
472
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
473 if (retval && outputFile.isOpen()) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
474 // Actually save the file to disk / move to homedir
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
475 retval = outputFile.commit();
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
476 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
477
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
478 return retval;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
479 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
480
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
481 void Downloader::run() {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
482 bool results = false;
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
483 SmartHINTERNET sHSession;
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
484 SmartHINTERNET sHConnect;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
485 wchar_t wUrl[mUrl.size() + 1];
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
486 QDateTime lastModifiedSoftware;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
487 QDateTime lastModifiedList;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
488
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
489 int rc = 0;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
490
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
491 memset(wUrl, 0, sizeof (wchar_t) * (mUrl.size() + 1));
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
492
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
493 rc = mUrl.toWCharArray(wUrl);
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
494
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
495 if (rc != mUrl.size()) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
496 DEBUG << "Problem converting to wchar array";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
497 return;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
498 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
499
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
500 // Should not be necessary because we initialized the memory
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
501 wUrl[rc] = '\0';
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
502
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
503 // Initialize connection
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
504 if (!openSession(&sHConnect.handle)) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
505 DEBUG << "Failed to open session: " << getLastErrorMsg();
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
506 return;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
507 }
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
508 if (!initializeConnection(sHConnect.handle, &sHConnect.handle, wUrl)) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
509 DEBUG << "Failed to initialize connection: " << getLastErrorMsg();
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
510 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
511 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
512
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
513
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
514 lastModifiedSoftware = getLastModifiedHeader(sHConnect.handle, sHConnect.handle,
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
515 L""SW_RESOURCE);
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
516
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
517 lastModifiedList = getLastModifiedHeader(sHConnect.handle, sHConnect.handle,
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
518 L""LIST_RESOURCE);
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
519
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
520 if (!lastModifiedList.isValid() || !lastModifiedSoftware.isValid()) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
521 DEBUG << "Could not read headers: " << getLastErrorMsg();
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
522 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
523 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
524
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
525 if (!mLastModSW.isValid() || lastModifiedSoftware > mLastModSW) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
526 QString dataDirectory = getDataDirectory();
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
527
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
528 if (dataDirectory.isEmpty()) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
529 DEBUG << "Failed to get data directory";
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
530 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
531 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
532
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
533 QString fileName = dataDirectory.append("/SW-")
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
534 .append(lastModifiedSoftware.toString("yyyymmddHHmmss"))
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
535 .append(".exe");
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
536
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
537 DEBUG << "fileName: " << fileName;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
538
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
539 if (!downloadFile(sHConnect.handle, sHConnect.handle, L""SW_RESOURCE,
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
540 fileName, MAX_SW_SIZE)) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
541 DEBUG << "Error downloading File: " << getLastErrorMsg();
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
542 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
543 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
544
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
545 emit newSoftwareAvailable(fileName, lastModifiedSoftware);
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
546 } else if (!mLastModList.isValid() || lastModifiedList > mLastModList) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
547 QString dataDirectory = getDataDirectory();
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
548
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
549 if (dataDirectory.isEmpty()) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
550 DEBUG << "Failed to get data directory";
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
551 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
552 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
553
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
554 QString fileName = dataDirectory.append("/list-")
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
555 .append(lastModifiedSoftware.toString("yyyymmddHHmmss"))
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
556 .append(".txt");
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
557
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
558 DEBUG << "fileName: " << fileName;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
559
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
560 if (!downloadFile(sHConnect.handle, sHConnect.handle, L""LIST_RESOURCE,
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
561 fileName, MAX_LIST_SIZE)) {
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562 DEBUG << "Error downloading File: " << getLastErrorMsg();
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7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
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563 return;
15
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parents: 11
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564 }
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565
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566 emit newListAvailable(fileName, lastModifiedList);
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567 }
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568
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569 DEBUG << "SW date: " << lastModifiedSoftware;
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570 DEBUG << "List date: " << lastModifiedList;
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parents: 11
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571
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572 if (!results) {
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573 // Report any errors.
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574 DEBUG << "Error" << GetLastError();
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575 emit error(tr("Unknown Problem when connecting"), ErrUnknown);
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576 }
20
fec1a610d43f Mark usage of goto with TODOs to remove them
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parents: 18
diff changeset
577
11
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578 return;
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Andre Heinecke <aheinecke@intevation.de>
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579 }
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580 #endif
http://wald.intevation.org/projects/trustbridge/