annotate ui/downloader_win.cpp @ 24:de67047ca229

Add documentation generation
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 21 Feb 2014 15:12:24 +0000
parents 7d07d261b003
children 62cd56cea09b
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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25
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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
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31
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32 #define LIST_RESOURCE "/incoming/aheinecke/test"
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33 #define SW_RESOURCE "/incoming/aheinecke/test"
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34
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35 /** @brief A wrapper around a HINTERNET structure that handles closing
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36 *
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37 * Holds a HINTERNET structure and closes it if necessary on destruction.
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38 *
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39 */
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40 class SmartHINTERNET {
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41 public:
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42 SmartHINTERNET() : handle(NULL) {}
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43
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44 ~SmartHINTERNET() {
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45 if (handle) {
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46 WinHttpCloseHandle(handle);
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47 }
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48 }
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49
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50 HINTERNET handle;
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51 };
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52
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53 /** @brief Qt wrapper around FormatMessage
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54 *
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55 * @returns The error message of the error that occurred
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56 */
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57 const QString getLastErrorMsg() {
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58 LPWSTR bufPtr = NULL;
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59 DWORD err = GetLastError();
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60 FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
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61 FORMAT_MESSAGE_FROM_SYSTEM |
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62 FORMAT_MESSAGE_IGNORE_INSERTS,
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63 NULL, err, 0, (LPWSTR)&bufPtr, 0, NULL);
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64 if (!bufPtr) {
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65 HMODULE hWinhttp = GetModuleHandleW(L"winhttp");
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66 if (hWinhttp) {
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67 FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
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68 FORMAT_MESSAGE_FROM_HMODULE |
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69 FORMAT_MESSAGE_IGNORE_INSERTS,
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70 hWinhttp, HRESULT_CODE(err), 0,
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71 (LPWSTR)&bufPtr, 0, NULL);
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72 }
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73 }
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74 const QString result =
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75 (bufPtr) ? QString::fromUtf16((const ushort*)bufPtr).trimmed() :
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76 QString("Unknown Error %1").arg(err);
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77 LocalFree(bufPtr);
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78 return result;
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79 }
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80
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81
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82 /** @brief open a session with appropriate proxy settings
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83 *
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84 * @param[inout] *pHSession pointer to a HInternet structure
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85 *
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86 * On error call getLastError to get extended error information.
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87 *
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88 * @returns True on success, false on error.
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89 */
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90
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91
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92 bool openSession(HINTERNET *pHSession)
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93 {
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94 WINHTTP_CURRENT_USER_IE_PROXY_CONFIG proxyConfig;
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95
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96 DEBUG;
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97 if (!pHSession) {
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98 SetLastError(ERROR_INVALID_PARAMETER);
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99 return false;
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100 }
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101
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102 memset(&proxyConfig, 0, sizeof (WINHTTP_CURRENT_USER_IE_PROXY_CONFIG));
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103
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104 if (WinHttpGetIEProxyConfigForCurrentUser(&proxyConfig)) {
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105 if (proxyConfig.fAutoDetect) {
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106 // TODO Handle this
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107 qDebug() << "Autodetect is set";
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108 }
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109
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110 if (proxyConfig.lpszProxy || proxyConfig.lpszProxyBypass) {
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111 DEBUG << "Using proxies.";
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112 }
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113
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114 if (proxyConfig.lpszProxy) {
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115 *pHSession = WinHttpOpen(L"M13 "MYVERSION,
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116 WINHTTP_ACCESS_TYPE_NAMED_PROXY,
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117 proxyConfig.lpszProxy,
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118 proxyConfig.lpszProxyBypass, 0);
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119 }
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120 }
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121
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122 if (!*pHSession) {
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123 DEBUG << "No IE Proxy falling back to default proxy";
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124 *pHSession = WinHttpOpen(L"M13 "MYVERSION,
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125 WINHTTP_ACCESS_TYPE_DEFAULT_PROXY,
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126 WINHTTP_NO_PROXY_NAME,
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127 WINHTTP_NO_PROXY_BYPASS, 0);
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128 }
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129 // Cleanup
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130 if (proxyConfig.lpszAutoConfigUrl) {
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131 GlobalFree(proxyConfig.lpszAutoConfigUrl);
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132 }
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133
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134 if (proxyConfig.lpszProxy) {
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135 GlobalFree(proxyConfig.lpszProxy);
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136 }
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137
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138 if (proxyConfig.lpszProxyBypass) {
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139 GlobalFree(proxyConfig.lpszProxyBypass);
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140 }
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141 return *pHSession;
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142 }
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143
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144
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145 /** @brief initialize a connection in the session
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146 *
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147 * @param[in] HSession the session to work in.
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148 * @param[inout] *pHConnect pointer to the connection.
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149 * @param[in] url pointer to the URL in wchar representation.
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150 *
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151 * On error call getLastError to get extended error information.
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152 *
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153 * @returns True on success, false on error.
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154 */
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155 bool initializeConnection(HINTERNET hSession, HINTERNET *pHConnect,
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156 LPCWSTR url)
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157 {
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158 DEBUG;
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159 if (!hSession || !pHConnect) {
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160 SetLastError(ERROR_INVALID_PARAMETER);
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161 return false;
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162 }
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163 // Initialize connection. No request is done here.
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164 *pHConnect = WinHttpConnect(hSession, url,
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165 INTERNET_DEFAULT_HTTPS_PORT, 0);
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166
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167 return *pHConnect;
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168 }
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169
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170 /** @brief Create a request
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171 *
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172 * @param[in] HSession the session to work in.
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173 * @param[in] HConnect the connection to use.
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174 * @param[inout] *pHRequest pointer to the request structure to be filled.
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175 * @param[in] requestType the HTTP request to be made default is GET
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176 * @param[in] resource pointer to the resource to request in wchar
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177 * representation.
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178 *
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179 * On error call getLastError to get extended error information.
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180 * This function still does not do any networking but only initializes
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181 * it.
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182 *
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183 * @returns True on success, false on error.
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184 */
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185
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186 bool createRequest(HINTERNET hSession, HINTERNET hConnect,
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187 HINTERNET *pHRequest, LPCWSTR requestType, LPCWSTR resource)
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188 {
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189 DWORD dwSSLFlag;
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190 DEBUG;
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191 if (!hSession || !hConnect || !pHRequest) {
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192 SetLastError(ERROR_INVALID_PARAMETER);
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193 return false;
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194 }
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195
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196 *pHRequest = WinHttpOpenRequest(hConnect, requestType, resource,
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197 NULL, WINHTTP_NO_REFERER,
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198 WINHTTP_DEFAULT_ACCEPT_TYPES,
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199 WINHTTP_FLAG_SECURE);
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200
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201 dwSSLFlag = SECURITY_FLAG_IGNORE_UNKNOWN_CA;
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202 dwSSLFlag |= SECURITY_FLAG_IGNORE_CERT_DATE_INVALID;
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203 dwSSLFlag |= SECURITY_FLAG_IGNORE_CERT_CN_INVALID;
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204 dwSSLFlag |= SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE;
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205
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206 WinHttpSetOption(*pHRequest, WINHTTP_OPTION_SECURITY_FLAGS,
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207 &dwSSLFlag, sizeof(dwSSLFlag));
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208
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209 return *pHRequest;
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210 }
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211
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212 bool Downloader::verifyCertificate(HINTERNET hRequest)
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213 {
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214 CERT_CONTEXT *certContext = NULL;
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215 DWORD certContextLen = sizeof(CERT_CONTEXT);
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216 bool retval = false;
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217
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218 if (!WinHttpQueryOption(hRequest,
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219 WINHTTP_OPTION_SERVER_CERT_CONTEXT,
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220 &certContext,
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221 &certContextLen)) {
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222 DEBUG << "Unable to get server certificate";
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223 return false;
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224 }
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225
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226 QByteArray serverCert ((const char *) certContext->pbCertEncoded,
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227 certContext->cbCertEncoded);
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228
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229 retval = (serverCert == mCert);
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230
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231 if (!retval) {
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232 DEBUG << "Certificate is not the same as the pinned one!"
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233 << "Base64 cert: " << serverCert.toBase64();
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234 emit error("Invalid certificate", InvalidCertificate);
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235 }
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236
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237 CertFreeCertificateContext(certContext);
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238 return retval;
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239 }
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240
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241 QDateTime Downloader::getLastModifiedHeader(HINTERNET hSession,
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242 HINTERNET hConnect, LPCWSTR resource)
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243 {
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244 SmartHINTERNET sHRequest;
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245 SYSTEMTIME lMod;
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246 DWORD sizeOfSystemtime = sizeof (SYSTEMTIME);
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247 QDateTime retval;
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248
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249 memset(&lMod, 0, sizeof (SYSTEMTIME));
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250
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251 if (!hSession || !hConnect || !resource) {
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252 SetLastError(ERROR_INVALID_PARAMETER);
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253 return retval;
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254 }
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255
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256 if (!createRequest(hSession, hConnect, &sHRequest.handle, L"HEAD",
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257 resource)) {
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258 return retval;
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259 }
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260
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261 if (!WinHttpSendRequest(sHRequest.handle,
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262 WINHTTP_NO_ADDITIONAL_HEADERS,
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263 0, WINHTTP_NO_REQUEST_DATA, 0,
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264 0, 0)) {
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265 return retval;
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266 }
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267
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268
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269 if (!WinHttpReceiveResponse(sHRequest.handle, NULL)) {
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270 return retval;
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271 }
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272
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273 if (!verifyCertificate(sHRequest.handle)) {
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274 DEBUG << "Certificate verification failed";
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275 return retval;
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276 }
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277
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278 if (!(WinHttpQueryHeaders(sHRequest.handle,
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279 WINHTTP_QUERY_LAST_MODIFIED |
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280 WINHTTP_QUERY_FLAG_SYSTEMTIME,
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diff changeset
281 NULL,
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diff changeset
282 &lMod,
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diff changeset
283 &sizeOfSystemtime,
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diff changeset
284 WINHTTP_NO_HEADER_INDEX))) {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
285 return retval;
15
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diff changeset
286 }
11
7e2f14c7aba2 Split up downloader component and further implement it
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
287
15
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diff changeset
288 retval = QDateTime(QDate(lMod.wYear, lMod.wMonth, lMod.wDay),
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diff changeset
289 QTime(lMod.wHour, lMod.wMinute, lMod.wSecond,
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
290 lMod.wMilliseconds),
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
291 Qt::UTC);
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292 return retval;
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
293 }
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diff changeset
294
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295 bool Downloader::downloadFile(HINTERNET hSession, HINTERNET hConnect,
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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296 LPCWSTR resource, const QString &fileName, DWORD maxSize)
15
95e1b6edf2fc Implement more downloader functionality for Windows
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diff changeset
297 {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
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diff changeset
298 SmartHINTERNET sHRequest;
15
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299 bool retval = false;
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300 DWORD bytesAvailable = 0,
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diff changeset
301 bytesRead = 0,
17
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Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
302 totalDownloaded = 0,
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
303 contentLength = 0,
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
304 sizeOfDWORD = sizeof (DWORD);
15
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diff changeset
305
17
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
306 QSaveFile outputFile(fileName);
15
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diff changeset
307
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
308 if (!hSession || !hConnect || !resource) {
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
309 SetLastError(ERROR_INVALID_PARAMETER);
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310 return retval;
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diff changeset
311 }
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
312
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
313 if (!createRequest(hSession, hConnect, &sHRequest.handle, L"GET",
15
95e1b6edf2fc Implement more downloader functionality for Windows
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diff changeset
314 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
315 return retval;
15
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diff changeset
316 }
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diff changeset
317
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
318 if (!WinHttpSendRequest(sHRequest.handle,
15
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
319 WINHTTP_NO_ADDITIONAL_HEADERS,
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
320 0, WINHTTP_NO_REQUEST_DATA, 0,
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
321 0, 0)) {
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
322 return retval;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
323 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
324
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
325
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
326 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
327 return retval;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
328 }
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
329
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
330 if (!verifyCertificate(sHRequest.handle)) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
331 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
332 return retval;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
333 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
334
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
335
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
336 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
337 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
338 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
339 NULL,
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
340 &contentLength,
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
341 &sizeOfDWORD,
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
342 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
343 // 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
344 // 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
345 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
346 }
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
347
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
348 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
349 return retval;
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
350 }
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
351
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
352 if (contentLength) {
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
353 QFileInfo finf(fileName);
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
354 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
355 finf.size() == contentLength) {
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
356 // 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
357 // 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
358 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
359 retval = true;
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;
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
361 }
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
362 }
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
363
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
364 // Open / Create the file to write to.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
365 if (!outputFile.open(QIODevice::WriteOnly)) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
366 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
367 return retval;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
368 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
369
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
370 DEBUG << "output file size: " << outputFile.size();
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
371 do
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
372 {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
373 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
374 memset(outBuf, 0, sizeof(outBuf));
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
375 bytesRead = 0;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
376
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
377 if (!WinHttpQueryDataAvailable(sHRequest.handle, &bytesAvailable)) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
378 DEBUG << "Querying for available data failed";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
379 retval = false;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
380 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
381 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
382
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
383 if (!bytesAvailable) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
384 // Might indicate that we are done.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
385 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
386 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
387
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
388 if (bytesAvailable > maxSize) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
389 DEBUG << "File to large";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
390 retval = false;
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
391 SetLastError(ERROR_INVALID_DATA);
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
392 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
393 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
394
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
395 if (!WinHttpReadData(sHRequest.handle, (LPVOID)outBuf,
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
396 sizeof(outBuf), &bytesRead)) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
397 DEBUG << "Error reading data";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
398 break;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
399 } else {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
400 if (bytesRead) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
401 // Write data to file.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
402 if (outputFile.write(outBuf, bytesRead) !=
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
403 bytesRead) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
404 DEBUG << "Error writing to file.";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
405 retval = false;
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 // 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
408 // the download was successful.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
409 retval = true;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
410 } else {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
411 // Should not happen as we queried for available
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
412 // 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
413 // error.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
414 DEBUG << "Unable to read available data";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
415 retval = false;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
416 break;
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>
parents: 11
diff changeset
418 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
419 totalDownloaded += bytesRead;
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 (totalDownloaded > maxSize) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
422 DEBUG << "Downloaded too much data. Breaking.";
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
423 retval = false;
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
424 break;
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 } while (bytesAvailable > 0);
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
427
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
428 if (retval && outputFile.isOpen()) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
429 // 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
430 retval = outputFile.commit();
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
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
433 return retval;
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
434 }
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
435
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
436 void Downloader::run() {
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parents: 11
diff changeset
437 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
438 SmartHINTERNET sHSession;
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
439 SmartHINTERNET sHConnect;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
440 wchar_t wUrl[mUrl.size() + 1];
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
441 QDateTime lastModifiedSoftware;
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
442 QDateTime lastModifiedList;
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
443
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
444 int rc = 0;
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parents: 11
diff changeset
445
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parents: 11
diff changeset
446 memset(wUrl, 0, sizeof (wchar_t) * (mUrl.size() + 1));
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
447
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
448 rc = mUrl.toWCharArray(wUrl);
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
449
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
450 if (rc != mUrl.size()) {
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
451 DEBUG << "Problem converting to wchar array";
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
452 return;
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
453 }
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
454
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
455 // Should not be necessary because we initialized the memory
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parents: 11
diff changeset
456 wUrl[rc] = '\0';
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
457
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parents: 11
diff changeset
458 // Initialize connection
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
459 if (!openSession(&sHConnect.handle)) {
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
460 DEBUG << "Failed to open session: " << getLastErrorMsg();
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
461 return;
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
462 }
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
463 if (!initializeConnection(sHConnect.handle, &sHConnect.handle, wUrl)) {
15
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diff changeset
464 DEBUG << "Failed to initialize connection: " << getLastErrorMsg();
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
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parents: 20
diff changeset
465 return;
15
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parents: 11
diff changeset
466 }
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
467
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
468
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
469 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
470 L""SW_RESOURCE);
15
95e1b6edf2fc Implement more downloader functionality for Windows
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parents: 11
diff changeset
471
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
472 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
473 L""LIST_RESOURCE);
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
474
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Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
475 if (!lastModifiedList.isValid() || !lastModifiedSoftware.isValid()) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
476 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
477 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
478 }
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 if (!mLastModSW.isValid() || lastModifiedSoftware > mLastModSW) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
481 QString dataDirectory = getDataDirectory();
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
482
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
483 if (dataDirectory.isEmpty()) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
484 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
485 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
486 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
487
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Andre Heinecke <aheinecke@intevation.de>
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diff changeset
488 QString fileName = dataDirectory.append("/SW-")
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
489 .append(lastModifiedSoftware.toString("yyyymmddHHmmss"))
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
490 .append(".exe");
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
491
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
492 DEBUG << "fileName: " << fileName;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
493
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
494 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
495 fileName, MAX_SW_SIZE)) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
496 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
497 return;
15
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 emit newSoftwareAvailable(fileName, lastModifiedSoftware);
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
501 } else if (!mLastModList.isValid() || lastModifiedList > mLastModList) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
502 QString dataDirectory = getDataDirectory();
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
503
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
504 if (dataDirectory.isEmpty()) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
505 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
506 return;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
507 }
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
508
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
509 QString fileName = dataDirectory.append("/list-")
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
510 .append(lastModifiedSoftware.toString("yyyymmddHHmmss"))
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
511 .append(".txt");
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
512
17
c12825a651ed Read out content-length and use this to skip existing files
Andre Heinecke <aheinecke@intevation.de>
parents: 15
diff changeset
513 DEBUG << "fileName: " << fileName;
15
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
514
23
7d07d261b003 Wrap HINTERNET handles in a class to take advantage of scoping
Andre Heinecke <aheinecke@intevation.de>
parents: 20
diff changeset
515 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
516 fileName, MAX_LIST_SIZE)) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
517 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
518 return;
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
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
521 emit newListAvailable(fileName, lastModifiedList);
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
522 }
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 DEBUG << "SW date: " << lastModifiedSoftware;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
525 DEBUG << "List date: " << lastModifiedList;
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
526
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
527 if (!results) {
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
528 // Report any errors.
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
529 DEBUG << "Error" << GetLastError();
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
530 emit error(tr("Unknown Problem when connecting"), ErrUnknown);
95e1b6edf2fc Implement more downloader functionality for Windows
Andre Heinecke <aheinecke@intevation.de>
parents: 11
diff changeset
531 }
20
fec1a610d43f Mark usage of goto with TODOs to remove them
Andre Heinecke <aheinecke@intevation.de>
parents: 18
diff changeset
532
11
7e2f14c7aba2 Split up downloader component and further implement it
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
533 return;
7e2f14c7aba2 Split up downloader component and further implement it
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
534 }
7e2f14c7aba2 Split up downloader component and further implement it
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
535 #endif

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