annotate ui/downloader_win.cpp @ 159:37c9653b8755

Rename NO_ERROR as NO_ERROR is already defined in windows.h
author Andre Heinecke <aheinecke@intevation.de>
date Tue, 25 Mar 2014 10:06:30 +0000
parents 62cd56cea09b
children 17e1c8f37d72
rev   line source
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1 /**
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2 * @file downloader_win.cpp
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3 * @brief Downloader implementation for Windows
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4 *
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5 * We use Windows API here instead of Qt because we want to avoid
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6 * QtNetworks SSL stack which is based on OpenSSL and so
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7 * we might be incompatible with GPL code. Also using the
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8 * native API means that the security of the SSL implementation
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9 * is tied to the security of the system.
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10 *
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11 */
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12 #include "downloader.h"
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13 #ifdef Q_OS_WIN
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14 #ifndef MYVERSION
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15 #define MYVERSION "1"
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16 #endif
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17
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18 #include <windows.h>
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19 #include <winhttp.h>
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20
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21 #include <QDebug>
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22 #include <QDateTime>
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23 #include <QSaveFile>
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24 #include <QFileInfo>
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26 #define DEBUG if (1) qDebug() << __PRETTY_FUNCTION__
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27
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28 #define MAX_SW_SIZE 10485760
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29 #define MAX_LIST_SIZE 1048576
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30 /** @brief Download a file from the Internet
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31 *
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32 * @param[in] HSession the session to work in.
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33 * @param[in] HConnect the connection to use.
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34 * @param[in] resource the resource to download.
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35 * @param[in] filename where the file should be saved.
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36 * @param[in] maxSize maximum amount of bytes to download
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37 *
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38 * @returns True if the download was successful.
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39 */
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40 bool downloadFile(HINTERNET hSession, HINTERNET hConnect,
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41 LPCWSTR resource, const QString &filename, DWORD maxSize);
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42
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43 /** @brief get the last modified header of a resource.
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44 *
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45 * On error call getLastError to get extended error information.
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46 * This function still does not do any networking but only initializes
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47 * it.
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48 *
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49 * @param[in] HSession the session to work in.
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50 * @param[in] HConnect the connection to use.
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51 * @param[in] resource the resource to check the last-modified date on
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52 *
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53 * @returns the last modified date or a null datetime in case of errors
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54 */
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55 QDateTime getLastModifiedHeader(HINTERNET hSession,
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56 HINTERNET hConnect, LPCWSTR resource);
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57
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58 /** @brief verify that the certificate of the request matches
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59 *
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60 * Validates the certificate against the member variable certificate
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61 *
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62 * @param[in] hRequest: The request from which to get the certificate
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63 *
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64 * @returns True if the certificate exactly matches the one in hRequest
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65 */
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66
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67 bool verifyCertificate(HINTERNET hRequest);
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68
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69
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70 #define LIST_RESOURCE "/incoming/aheinecke/test"
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71 #define SW_RESOURCE "/incoming/aheinecke/test"
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72
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73 /** @brief A wrapper around a HINTERNET structure that handles closing
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74 *
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75 * Holds a HINTERNET structure and closes it if necessary on destruction.
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76 *
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77 */
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78 class SmartHINTERNET {
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79 public:
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80 SmartHINTERNET() : handle(NULL) {}
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81
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82 ~SmartHINTERNET() {
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83 if (handle) {
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84 WinHttpCloseHandle(handle);
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85 }
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86 }
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87
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88 HINTERNET handle;
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89 };
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90
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91 /** @brief Qt wrapper around FormatMessage
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92 *
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93 * @returns The error message of the error that occurred
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94 */
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95 const QString getLastErrorMsg() {
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96 LPWSTR bufPtr = NULL;
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97 DWORD err = GetLastError();
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98 FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
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99 FORMAT_MESSAGE_FROM_SYSTEM |
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100 FORMAT_MESSAGE_IGNORE_INSERTS,
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101 NULL, err, 0, (LPWSTR)&bufPtr, 0, NULL);
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102 if (!bufPtr) {
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103 HMODULE hWinhttp = GetModuleHandleW(L"winhttp");
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104 if (hWinhttp) {
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105 FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
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106 FORMAT_MESSAGE_FROM_HMODULE |
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107 FORMAT_MESSAGE_IGNORE_INSERTS,
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108 hWinhttp, HRESULT_CODE(err), 0,
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109 (LPWSTR)&bufPtr, 0, NULL);
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110 }
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111 }
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112 const QString result =
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113 (bufPtr) ? QString::fromUtf16((const ushort*)bufPtr).trimmed() :
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114 QString("Unknown Error %1").arg(err);
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115 LocalFree(bufPtr);
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116 return result;
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117 }
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118
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119
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120 /** @brief open a session with appropriate proxy settings
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121 *
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122 * @param[inout] *pHSession pointer to a HInternet structure
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123 *
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124 * On error call getLastError to get extended error information.
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125 *
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126 * @returns True on success, false on error.
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127 */
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128
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129
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130 bool openSession(HINTERNET *pHSession)
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131 {
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132 WINHTTP_CURRENT_USER_IE_PROXY_CONFIG proxyConfig;
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133
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134 DEBUG;
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135 if (!pHSession) {
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136 SetLastError(ERROR_INVALID_PARAMETER);
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137 return false;
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138 }
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139
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140 memset(&proxyConfig, 0, sizeof (WINHTTP_CURRENT_USER_IE_PROXY_CONFIG));
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141
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142 if (WinHttpGetIEProxyConfigForCurrentUser(&proxyConfig)) {
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143 if (proxyConfig.fAutoDetect) {
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144 // TODO Handle this
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145 qDebug() << "Autodetect is set";
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146 }
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147
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148 if (proxyConfig.lpszProxy || proxyConfig.lpszProxyBypass) {
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149 DEBUG << "Using proxies.";
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150 }
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151
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152 if (proxyConfig.lpszProxy) {
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153 *pHSession = WinHttpOpen(L"M13 "MYVERSION,
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154 WINHTTP_ACCESS_TYPE_NAMED_PROXY,
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155 proxyConfig.lpszProxy,
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156 proxyConfig.lpszProxyBypass, 0);
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157 }
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158 }
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159
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160 if (!*pHSession) {
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161 DEBUG << "No IE Proxy falling back to default proxy";
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162 *pHSession = WinHttpOpen(L"M13 "MYVERSION,
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163 WINHTTP_ACCESS_TYPE_DEFAULT_PROXY,
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164 WINHTTP_NO_PROXY_NAME,
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165 WINHTTP_NO_PROXY_BYPASS, 0);
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166 }
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167 // Cleanup
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168 if (proxyConfig.lpszAutoConfigUrl) {
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169 GlobalFree(proxyConfig.lpszAutoConfigUrl);
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170 }
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171
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172 if (proxyConfig.lpszProxy) {
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173 GlobalFree(proxyConfig.lpszProxy);
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174 }
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175
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176 if (proxyConfig.lpszProxyBypass) {
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177 GlobalFree(proxyConfig.lpszProxyBypass);
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178 }
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179 return *pHSession;
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180 }
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181
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182
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183 /** @brief initialize a connection in the session
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184 *
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185 * @param[in] HSession the session to work in.
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186 * @param[inout] *pHConnect pointer to the connection.
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187 * @param[in] url pointer to the URL in wchar representation.
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188 *
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189 * On error call getLastError to get extended error information.
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190 *
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191 * @returns True on success, false on error.
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192 */
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193 bool initializeConnection(HINTERNET hSession, HINTERNET *pHConnect,
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194 LPCWSTR url)
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195 {
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196 DEBUG;
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197 if (!hSession || !pHConnect) {
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198 SetLastError(ERROR_INVALID_PARAMETER);
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199 return false;
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200 }
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201 // Initialize connection. No request is done here.
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202 *pHConnect = WinHttpConnect(hSession, url,
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203 INTERNET_DEFAULT_HTTPS_PORT, 0);
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204
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205 return *pHConnect;
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206 }
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207
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208 /** @brief Create a request
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209 *
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210 * @param[in] HSession the session to work in.
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211 * @param[in] HConnect the connection to use.
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212 * @param[inout] *pHRequest pointer to the request structure to be filled.
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213 * @param[in] requestType the HTTP request to be made default is GET
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214 * @param[in] resource pointer to the resource to request in wchar
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215 * representation.
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216 *
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217 * On error call getLastError to get extended error information.
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218 * This function still does not do any networking but only initializes
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219 * it.
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220 *
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221 * @returns True on success, false on error.
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222 */
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223
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224 bool createRequest(HINTERNET hSession, HINTERNET hConnect,
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225 HINTERNET *pHRequest, LPCWSTR requestType, LPCWSTR resource)
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226 {
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227 DWORD dwSSLFlag;
11
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228 DEBUG;
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229 if (!hSession || !hConnect || !pHRequest) {
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230 SetLastError(ERROR_INVALID_PARAMETER);
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231 return false;
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232 }
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233
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234 *pHRequest = WinHttpOpenRequest(hConnect, requestType, resource,
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235 NULL, WINHTTP_NO_REFERER,
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236 WINHTTP_DEFAULT_ACCEPT_TYPES,
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237 WINHTTP_FLAG_SECURE);
15
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238
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239 dwSSLFlag = SECURITY_FLAG_IGNORE_UNKNOWN_CA;
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240 dwSSLFlag |= SECURITY_FLAG_IGNORE_CERT_DATE_INVALID;
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241 dwSSLFlag |= SECURITY_FLAG_IGNORE_CERT_CN_INVALID;
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242 dwSSLFlag |= SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE;
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243
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244 WinHttpSetOption(*pHRequest, WINHTTP_OPTION_SECURITY_FLAGS,
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245 &dwSSLFlag, sizeof(dwSSLFlag));
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246
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247 return *pHRequest;
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248 }
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249
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250 bool Downloader::verifyCertificate(HINTERNET hRequest)
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251 {
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252 CERT_CONTEXT *certContext = NULL;
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253 DWORD certContextLen = sizeof(CERT_CONTEXT);
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254 bool retval = false;
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255
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256 if (!WinHttpQueryOption(hRequest,
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257 WINHTTP_OPTION_SERVER_CERT_CONTEXT,
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258 &certContext,
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259 &certContextLen)) {
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260 DEBUG << "Unable to get server certificate";
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261 return false;
11
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262 }
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263
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264 QByteArray serverCert ((const char *) certContext->pbCertEncoded,
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265 certContext->cbCertEncoded);
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266
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267 retval = (serverCert == mCert);
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268
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269 if (!retval) {
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270 DEBUG << "Certificate is not the same as the pinned one!"
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271 << "Base64 cert: " << serverCert.toBase64();
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272 emit error("Invalid certificate", InvalidCertificate);
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273 }
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274
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275 CertFreeCertificateContext(certContext);
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276 return retval;
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277 }
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278
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279 QDateTime Downloader::getLastModifiedHeader(HINTERNET hSession,
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280 HINTERNET hConnect, LPCWSTR resource)
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281 {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
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diff changeset
282 SmartHINTERNET sHRequest;
15
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diff changeset
283 SYSTEMTIME lMod;
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284 DWORD sizeOfSystemtime = sizeof (SYSTEMTIME);
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diff changeset
285 QDateTime retval;
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diff changeset
286
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diff changeset
287 memset(&lMod, 0, sizeof (SYSTEMTIME));
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diff changeset
288
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diff changeset
289 if (!hSession || !hConnect || !resource) {
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diff changeset
290 SetLastError(ERROR_INVALID_PARAMETER);
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diff changeset
291 return retval;
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diff changeset
292 }
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diff changeset
293
23
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diff changeset
294 if (!createRequest(hSession, hConnect, &sHRequest.handle, L"HEAD",
15
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diff changeset
295 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
296 return retval;
11
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297 }
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parents:
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298
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
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diff changeset
299 if (!WinHttpSendRequest(sHRequest.handle,
15
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diff changeset
300 WINHTTP_NO_ADDITIONAL_HEADERS,
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diff changeset
301 0, WINHTTP_NO_REQUEST_DATA, 0,
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parents: 11
diff changeset
302 0, 0)) {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
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parents: 20
diff changeset
303 return retval;
11
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parents:
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304 }
7e2f14c7aba2 Split up downloader component and further implement it
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
305
7e2f14c7aba2 Split up downloader component and further implement it
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
306
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
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diff changeset
307 if (!WinHttpReceiveResponse(sHRequest.handle, NULL)) {
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
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parents: 20
diff changeset
308 return retval;
11
7e2f14c7aba2 Split up downloader component and further implement it
Andre Heinecke <aheinecke@intevation.de>
parents:
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309 }
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Andre Heinecke <aheinecke@intevation.de>
parents:
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310
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
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diff changeset
311 if (!verifyCertificate(sHRequest.handle)) {
15
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diff changeset
312 DEBUG << "Certificate verification failed";
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
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313 return retval;
11
7e2f14c7aba2 Split up downloader component and further implement it
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parents:
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314 }
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Andre Heinecke <aheinecke@intevation.de>
parents:
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315
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
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diff changeset
316 if (!(WinHttpQueryHeaders(sHRequest.handle,
15
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diff changeset
317 WINHTTP_QUERY_LAST_MODIFIED |
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diff changeset
318 WINHTTP_QUERY_FLAG_SYSTEMTIME,
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
319 NULL,
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320 &lMod,
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diff changeset
321 &sizeOfSystemtime,
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
322 WINHTTP_NO_HEADER_INDEX))) {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
323 return retval;
15
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diff changeset
324 }
11
7e2f14c7aba2 Split up downloader component and further implement it
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parents:
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325
15
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diff changeset
326 retval = QDateTime(QDate(lMod.wYear, lMod.wMonth, lMod.wDay),
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diff changeset
327 QTime(lMod.wHour, lMod.wMinute, lMod.wSecond,
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
328 lMod.wMilliseconds),
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
329 Qt::UTC);
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diff changeset
330 return retval;
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diff changeset
331 }
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diff changeset
332
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diff changeset
333 bool Downloader::downloadFile(HINTERNET hSession, HINTERNET hConnect,
17
c12825a651ed Read out content-length and use this to skip existing files
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diff changeset
334 LPCWSTR resource, const QString &fileName, DWORD maxSize)
15
95e1b6edf2fc Implement more downloader functionality for Windows
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diff changeset
335 {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
336 SmartHINTERNET sHRequest;
15
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diff changeset
337 bool retval = false;
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diff changeset
338 DWORD bytesAvailable = 0,
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diff changeset
339 bytesRead = 0,
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
340 totalDownloaded = 0,
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diff changeset
341 contentLength = 0,
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
342 sizeOfDWORD = sizeof (DWORD);
15
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diff changeset
343
17
c12825a651ed Read out content-length and use this to skip existing files
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diff changeset
344 QSaveFile outputFile(fileName);
15
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diff changeset
345
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diff changeset
346 if (!hSession || !hConnect || !resource) {
95e1b6edf2fc Implement more downloader functionality for Windows
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diff changeset
347 SetLastError(ERROR_INVALID_PARAMETER);
95e1b6edf2fc Implement more downloader functionality for Windows
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diff changeset
348 return retval;
95e1b6edf2fc Implement more downloader functionality for Windows
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parents: 11
diff changeset
349 }
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diff changeset
350
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
351 if (!createRequest(hSession, hConnect, &sHRequest.handle, L"GET",
15
95e1b6edf2fc Implement more downloader functionality for Windows
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parents: 11
diff changeset
352 resource)) {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
353 return retval;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
354 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
355
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
356 if (!WinHttpSendRequest(sHRequest.handle,
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
357 WINHTTP_NO_ADDITIONAL_HEADERS,
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
358 0, WINHTTP_NO_REQUEST_DATA, 0,
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
359 0, 0)) {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
360 return retval;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
361 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
362
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
363
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
364 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
365 return retval;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
366 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
367
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
368 if (!verifyCertificate(sHRequest.handle)) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
369 DEBUG << "Certificate verification failed";
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
370 return retval;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
371 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
372
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
373
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
374 if (!(WinHttpQueryHeaders(sHRequest.handle,
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
375 WINHTTP_QUERY_CONTENT_LENGTH |
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
376 WINHTTP_QUERY_FLAG_NUMBER,
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
377 NULL,
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
378 &contentLength,
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
379 &sizeOfDWORD,
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
380 WINHTTP_NO_HEADER_INDEX))) {
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
381 // 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>
parents: 15
diff changeset
382 // much we download.
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
383 DEBUG << "No content-length";
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
384 }
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
385
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
386 if (contentLength > maxSize) {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
387 return retval;
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
388 }
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
389
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
390 if (contentLength) {
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
391 QFileInfo finf(fileName);
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
392 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
393 finf.size() == contentLength) {
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
394 // 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>
parents: 15
diff changeset
395 // No need to waste bandwidth.
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
396 DEBUG << "Skipping download because file exists";
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
397 retval = true;
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
398 return retval;
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
399 }
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
400 }
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
401
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
402 // Open / Create the file to write to.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
403 if (!outputFile.open(QIODevice::WriteOnly)) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
404 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
405 return retval;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
406 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
407
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
408 DEBUG << "output file size: " << outputFile.size();
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
409 do
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
410 {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
411 char outBuf[8192]; // 8KB is the internal buffer size of winhttp
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
412 memset(outBuf, 0, sizeof(outBuf));
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
413 bytesRead = 0;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
414
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
415 if (!WinHttpQueryDataAvailable(sHRequest.handle, &bytesAvailable)) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
416 DEBUG << "Querying for available data failed";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
417 retval = false;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
418 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
419 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
420
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
421 if (!bytesAvailable) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
422 // Might indicate that we are done.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
423 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
424 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
425
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
426 if (bytesAvailable > maxSize) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
427 DEBUG << "File to large";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
428 retval = false;
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
429 SetLastError(ERROR_INVALID_DATA);
15
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
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
433 if (!WinHttpReadData(sHRequest.handle, (LPVOID)outBuf,
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
434 sizeof(outBuf), &bytesRead)) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
435 DEBUG << "Error reading data";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
436 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
437 } else {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
438 if (bytesRead) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
439 // Write data to file.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
440 if (outputFile.write(outBuf, bytesRead) !=
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
441 bytesRead) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
442 DEBUG << "Error writing to file.";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
443 retval = false;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
444 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
445 // 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
446 // the download was successful.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
447 retval = true;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
448 } else {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
449 // Should not happen as we queried for available
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
450 // 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
451 // error.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
452 DEBUG << "Unable to read available data";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
453 retval = false;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
454 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
455 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
456 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
457 totalDownloaded += bytesRead;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
458
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
459 if (totalDownloaded > maxSize) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
460 DEBUG << "Downloaded too much data. Breaking.";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
461 retval = false;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
462 break;
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 } while (bytesAvailable > 0);
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
465
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
466 if (retval && outputFile.isOpen()) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
467 // 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
468 retval = outputFile.commit();
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
469 }
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 return retval;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
472 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
473
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
474 void Downloader::run() {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
475 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
476 SmartHINTERNET sHSession;
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
477 SmartHINTERNET sHConnect;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
478 wchar_t wUrl[mUrl.size() + 1];
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
479 QDateTime lastModifiedSoftware;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
480 QDateTime lastModifiedList;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
481
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
482 int rc = 0;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
483
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
484 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
485
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
486 rc = mUrl.toWCharArray(wUrl);
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
487
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
488 if (rc != mUrl.size()) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
489 DEBUG << "Problem converting to wchar array";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
490 return;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
491 }
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 // 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
494 wUrl[rc] = '\0';
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
495
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
496 // Initialize connection
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
497 if (!openSession(&sHConnect.handle)) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
498 DEBUG << "Failed to open session: " << getLastErrorMsg();
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
499 return;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
500 }
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
501 if (!initializeConnection(sHConnect.handle, &sHConnect.handle, wUrl)) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
502 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
503 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
504 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
505
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
506
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
507 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
508 L""SW_RESOURCE);
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
509
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
510 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
511 L""LIST_RESOURCE);
15
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 if (!lastModifiedList.isValid() || !lastModifiedSoftware.isValid()) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
514 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
515 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
516 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
517
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
518 if (!mLastModSW.isValid() || lastModifiedSoftware > mLastModSW) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
519 QString dataDirectory = getDataDirectory();
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
520
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
521 if (dataDirectory.isEmpty()) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
522 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
523 return;
15
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
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
526 QString fileName = dataDirectory.append("/SW-")
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
527 .append(lastModifiedSoftware.toString("yyyymmddHHmmss"))
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
528 .append(".exe");
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
529
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
530 DEBUG << "fileName: " << fileName;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
531
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
532 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
533 fileName, MAX_SW_SIZE)) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
534 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
535 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
536 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
537
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
538 emit newSoftwareAvailable(fileName, lastModifiedSoftware);
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
539 } else if (!mLastModList.isValid() || lastModifiedList > mLastModList) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
540 QString dataDirectory = getDataDirectory();
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
541
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
542 if (dataDirectory.isEmpty()) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
543 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
544 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
545 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
546
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
547 QString fileName = dataDirectory.append("/list-")
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
548 .append(lastModifiedSoftware.toString("yyyymmddHHmmss"))
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
549 .append(".txt");
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
550
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
551 DEBUG << "fileName: " << fileName;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
552
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
553 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
554 fileName, MAX_LIST_SIZE)) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
555 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
556 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
557 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
558
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
559 emit newListAvailable(fileName, lastModifiedList);
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
560 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
561
95e1b6edf2fc Implement more downloader functionality for Windows
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562 DEBUG << "SW date: " << lastModifiedSoftware;
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563 DEBUG << "List date: " << lastModifiedList;
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564
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565 if (!results) {
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566 // Report any errors.
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567 DEBUG << "Error" << GetLastError();
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568 emit error(tr("Unknown Problem when connecting"), ErrUnknown);
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569 }
20
fec1a610d43f Mark usage of goto with TODOs to remove them
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parents: 18
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570
11
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parents:
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571 return;
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572 }
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573 #endif

http://wald.intevation.org/projects/trustbridge/