Mercurial > trustbridge
annotate ui/downloader.cpp @ 721:abc76948d8e5
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author | Andre Heinecke <andre.heinecke@intevation.de> |
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date | Wed, 02 Jul 2014 17:04:02 +0200 |
parents | cb044efdaf0d |
children | 13cf42dbe9bd |
rev | line source |
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404 | 1 /* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik |
2 * Software engineering by Intevation GmbH | |
3 * | |
4 * This file is Free Software under the GNU GPL (v>=2) | |
5 * and comes with ABSOLUTELY NO WARRANTY! | |
6 * See LICENSE.txt for details. | |
7 */ | |
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8 #include "downloader.h" |
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9 |
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10 #ifndef DOWNLOAD_SERVER |
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11 #define DOWNLOAD_SERVER "https://www.intevation.de" |
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12 #endif |
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13 |
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14 #include <QFile> |
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15 #include <QDir> |
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16 #include <QDebug> |
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17 #include <QStandardPaths> |
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18 #include <QLocale> |
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19 #include <QSaveFile> |
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20 |
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21 #include <polarssl/net.h> |
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22 #include <polarssl/ssl.h> |
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23 #include <polarssl/entropy.h> |
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24 #include <polarssl/ctr_drbg.h> |
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25 #include <polarssl/error.h> |
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26 #include <polarssl/certs.h> |
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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 Downloader::Downloader(QObject* parent, const QString& url, |
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33 const QByteArray& certificate, |
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34 const QDateTime& newestSW, |
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35 const QDateTime& newestList, |
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36 const QString& resourceSW, |
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37 const QString& resourceList, |
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38 bool downloadSW): |
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39 QThread(parent), |
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40 mLastModSW(newestSW), |
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41 mLastModList(newestList), |
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42 mResourceSW(resourceSW), |
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43 mResourceList(resourceList), |
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44 mDownloadSW(downloadSW), |
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45 mSSLConnection(url, certificate) |
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46 { |
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47 } |
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48 |
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49 |
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50 Downloader::~Downloader() { |
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51 } |
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52 |
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53 QString Downloader::getDataDirectory() |
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54 { |
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55 QString candidate = |
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56 QStandardPaths::writableLocation(QStandardPaths::DataLocation); |
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57 |
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58 if (candidate.isEmpty()) { |
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59 qDebug() << "Could not find writeable locaction for me"; |
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60 return QString(); |
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61 } |
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62 |
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63 QDir cDir(candidate); |
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64 |
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65 if (!cDir.exists()) { |
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66 if (!cDir.mkpath(candidate)) { |
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67 qDebug() << "Could not create path to: " << candidate; |
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68 return QString(); |
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69 } |
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70 } |
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71 return cDir.absolutePath(); |
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72 } |
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73 |
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74 QMap<QString, QString> Downloader::parseHeaders(QByteArray *data) |
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75 { |
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76 int bodyStart = data->indexOf("\r\n\r\n"); |
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77 QMap<QString, QString> retval; |
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78 QByteArray headers; |
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79 QString response(*data); |
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80 if (bodyStart == -1) { |
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81 qDebug() << "Could not find header end."; |
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82 emit error(tr("Invalid response"), |
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83 SSLConnection::InvalidResponse); |
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84 return retval; |
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85 } |
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86 |
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87 /* Take the headers with one additional line break */ |
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88 headers = data->left(bodyStart + 2); |
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89 /* Chop off the head */ |
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90 |
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91 foreach (const QString& line, response.split("\r\n")) { |
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92 int sepPos = -1; |
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93 sepPos = line.indexOf(": "); |
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94 if (sepPos == -1) { |
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95 continue; |
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96 } |
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97 QString key = line.left(sepPos); |
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98 QString value = line.right(line.size() - sepPos - 2); |
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99 |
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100 retval.insert(key, value); |
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101 } |
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102 |
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103 *data = data->right(data->size() - bodyStart - 4); |
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104 return retval; |
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105 } |
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106 |
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107 QDateTime Downloader::getLastModifiedHeader(const QString &resource) { |
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108 int ret = -1; |
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109 QByteArray response; |
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110 QLocale cLocale = QLocale::c(); |
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111 QMap<QString, QString> headers; |
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112 QString headRequest = |
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113 QString::fromLatin1("HEAD %1 HTTP/1.0\r\n\r\n").arg(resource); |
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114 |
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115 ret = mSSLConnection.write(headRequest.toUtf8()); |
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116 if (ret != 0) { |
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117 emit error (tr("Connection lost"), SSLConnection::ConnectionLost); |
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118 return QDateTime(); |
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119 } |
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120 |
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121 response = mSSLConnection.read(1024); |
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122 |
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123 qDebug() << "Response from server was: " << response; |
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124 |
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125 if (response.isNull()) { |
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126 qDebug() << "No response"; |
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127 emit error (tr("Connection lost"), SSLConnection::ConnectionLost); |
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128 return QDateTime(); |
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129 } |
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130 |
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131 headers = parseHeaders(&response); |
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132 const QString lastModified = headers.value("Last-Modified"); |
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133 if (!lastModified.isEmpty()) { |
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134 QDateTime candidate = cLocale.toDateTime(lastModified, |
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135 "ddd, dd MMM yyyy HH:mm:ss' GMT'"); |
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136 if (candidate.isValid()) { |
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137 return candidate; |
32
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138 } |
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139 } |
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140 emit error (tr("Invalid response from the server"), SSLConnection::InvalidResponse); |
32
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141 return QDateTime(); |
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142 } |
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143 |
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144 bool Downloader::downloadFile(const QString &resource, |
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145 const QString &fileName, |
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146 size_t maxSize) |
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147 { |
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148 int ret = -1; |
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149 size_t bytesRead = 0; |
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150 QString getRequest = |
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151 QString::fromLatin1("GET %1 HTTP/1.0\r\n\r\n").arg(resource); |
32
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152 |
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153 QSaveFile outputFile(fileName); |
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154 |
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155 ret = mSSLConnection.write(getRequest.toUtf8()); |
32
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156 |
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157 // Open / Create the file to write to. |
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158 if (!outputFile.open(QIODevice::WriteOnly)) { |
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159 qDebug() << "Failed to open file"; |
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160 return false; |
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161 } |
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162 |
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163 if (ret != 0) { |
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164 emit error(tr("Connection lost"), SSLConnection::ConnectionLost); |
32
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165 return false; |
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166 } |
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167 |
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168 bool inBody = false; |
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169 QMap <QString, QString> headers; |
32
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170 do { |
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171 /* Read the response in 8KiB chunks */ |
54
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172 int responseSize = 0; |
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173 QByteArray response = mSSLConnection.read(8192); |
32
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174 if (response.isNull()) { |
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175 qDebug() << "Error reading response"; |
45
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176 emit error(tr("Connection lost"), SSLConnection::ConnectionLost); |
32
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177 return false; |
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178 } |
54
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179 responseSize = response.size(); |
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180 if (!inBody) { |
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181 headers = parseHeaders(&response); |
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182 inBody = true; |
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183 } |
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184 outputFile.write(response); |
54
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185 bytesRead += responseSize; |
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186 if (responseSize < 8192) { |
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187 /* Nothing more to read */ |
32
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188 break; |
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189 } |
54
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190 /* TODO Emit progress */ |
32
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191 } while (bytesRead < maxSize); |
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192 |
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193 return outputFile.commit(); |
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194 } |
27
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195 |
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196 void Downloader::run() { |
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197 int ret; |
32
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198 QDateTime remoteModList; |
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199 QDateTime remoteModSW; |
27
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200 |
45
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|
201 if (!mSSLConnection.initialized()) { |
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202 emit error(tr("Failed to initialize SSL Module."), SSLConnection::ErrUnknown); |
27
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|
203 return; |
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|
204 } |
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205 |
45
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|
206 ret = mSSLConnection.connect(); |
32
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207 |
27
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|
208 if (ret != 0) { |
45
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|
209 emit error(tr("Failed to connect."), |
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|
210 mSSLConnection.getLastError()); |
27
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|
211 return; |
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|
212 } |
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|
213 |
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|
214 emit progress(tr("Connected"), 1, -1); |
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Start on polarssl Downloader.
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215 |
45
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changeset
|
216 remoteModSW = getLastModifiedHeader(mResourceSW); |
485
5834b340c54c
Emit a signal for last modified date in downloader.
Raimund Renkert <rrenkert@intevation.de>
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460
diff
changeset
|
217 emit lastModifiedDate(remoteModSW); |
32
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diff
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|
218 |
459
34cc448409ec
Fix error handling
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diff
changeset
|
219 if (!remoteModSW.isValid()) { |
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|
220 qDebug() << "Could not parse headers for Software"; |
32
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221 return; |
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|
222 } |
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|
223 |
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224 if (!mLastModSW.isValid() || remoteModSW > mLastModSW) { |
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|
225 QString dataDirectory = getDataDirectory(); |
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changeset
|
226 |
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|
227 if (dataDirectory.isEmpty()) { |
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diff
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|
228 qDebug() << "Failed to get data directory"; |
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|
229 return; |
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|
230 } |
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|
231 |
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changeset
|
232 QString fileName = dataDirectory.append("/SW-") |
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d2f4e28b5a13
Fix date format for file names
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diff
changeset
|
233 .append(remoteModSW.toString("yyyyMMddHHmmss")) |
32
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|
234 .append(".exe"); |
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changeset
|
235 |
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changeset
|
236 qDebug() << "fileName: " << fileName; |
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|
237 |
460
f8bed9008362
Added switch to download new available software.
Raimund Renkert <rrenkert@intevation.de>
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459
diff
changeset
|
238 if (mDownloadSW) { |
f8bed9008362
Added switch to download new available software.
Raimund Renkert <rrenkert@intevation.de>
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459
diff
changeset
|
239 if (!downloadFile(mResourceSW, fileName, MAX_SW_SIZE)) { |
f8bed9008362
Added switch to download new available software.
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459
diff
changeset
|
240 return; |
f8bed9008362
Added switch to download new available software.
Raimund Renkert <rrenkert@intevation.de>
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459
diff
changeset
|
241 } |
32
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diff
changeset
|
242 } |
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|
243 |
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|
244 emit newSoftwareAvailable(fileName, remoteModSW); |
458
6fac87cadbd8
Only check for list if now sw is available
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diff
changeset
|
245 return; |
6fac87cadbd8
Only check for list if now sw is available
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diff
changeset
|
246 } |
6fac87cadbd8
Only check for list if now sw is available
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diff
changeset
|
247 |
6fac87cadbd8
Only check for list if now sw is available
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diff
changeset
|
248 remoteModList = getLastModifiedHeader(mResourceList); |
459
34cc448409ec
Fix error handling
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diff
changeset
|
249 if (!remoteModList.isValid()) { |
34cc448409ec
Fix error handling
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458
diff
changeset
|
250 qDebug() << "Could not parse headers for List"; |
34cc448409ec
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diff
changeset
|
251 return; |
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diff
changeset
|
252 } |
458
6fac87cadbd8
Only check for list if now sw is available
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diff
changeset
|
253 |
6fac87cadbd8
Only check for list if now sw is available
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diff
changeset
|
254 if (!mLastModList.isValid() || remoteModList > mLastModList) { |
32
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27
diff
changeset
|
255 QString dataDirectory = getDataDirectory(); |
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diff
changeset
|
256 |
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257 if (dataDirectory.isEmpty()) { |
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258 qDebug() << "Failed to get data directory"; |
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259 return; |
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260 } |
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261 |
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262 QString fileName = dataDirectory.append("/list-") |
443
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Fixed certificate list file name.
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263 .append(remoteModList.toString("yyyyMMddHHmmss")) |
32
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264 .append(".txt"); |
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265 |
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266 qDebug() << "fileName: " << fileName; |
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267 |
46
d28e2624c1d5
Reset connection before the next request.
Andre Heinecke <aheinecke@intevation.de>
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268 if (!downloadFile(mResourceList, fileName, MAX_LIST_SIZE)) { |
32
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269 return; |
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270 } |
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271 |
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272 emit newListAvailable(fileName, remoteModList); |
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273 } |
27
62cd56cea09b
Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
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274 |
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Start on polarssl Downloader.
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275 emit progress(tr("Closing"), 1, -1); |
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Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
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276 } |