annotate ui/downloader_win.cpp @ 856:797aa8d9c785

(issue48) Fallback to HKEY_USERS on hive load failure If the hive can not be loaded it might mean that the user is currently logged on. In that case we can access his registry via HKEY_USERS.
author Andre Heinecke <andre.heinecke@intevation.de>
date Thu, 31 Jul 2014 12:56:26 +0200
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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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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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
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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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parents:
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312
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313
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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
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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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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>
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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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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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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>
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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>
parents: 15
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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563 return;
15
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parents: 11
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564 }
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parents: 11
diff changeset
565
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Andre Heinecke <aheinecke@intevation.de>
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566 emit newListAvailable(fileName, lastModifiedList);
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Andre Heinecke <aheinecke@intevation.de>
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567 }
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
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
diff changeset
571
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parents: 11
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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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Andre Heinecke <aheinecke@intevation.de>
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575 emit error(tr("Unknown Problem when connecting"), ErrUnknown);
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parents: 11
diff changeset
576 }
20
fec1a610d43f Mark usage of goto with TODOs to remove them
Andre Heinecke <aheinecke@intevation.de>
parents: 18
diff changeset
577
11
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Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
578 return;
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Andre Heinecke <aheinecke@intevation.de>
parents:
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579 }
7e2f14c7aba2 Split up downloader component and further implement it
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
580 #endif

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