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annotate ui/downloader.cpp @ 45:c6125d73faf4

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Move SSLConnection into it's own class
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 14 Mar 2014 16:40:53 +0000
parents 56ba6376426e
children d28e2624c1d5
rev   line source
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1 #include "downloader.h"
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2
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3 #ifndef DOWNLOAD_SERVER
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4 #define DOWNLOAD_SERVER "https://www.intevation.de"
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5 #endif
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6
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7 #include <QFile>
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8 #include <QDir>
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9 #include <QDebug>
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10 #include <QStandardPaths>
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11 #include <QTextStream>
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12 #include <QLocale>
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13 #include <QSaveFile>
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14
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15 #include <polarssl/net.h>
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16 #include <polarssl/ssl.h>
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17 #include <polarssl/entropy.h>
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18 #include <polarssl/ctr_drbg.h>
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19 #include <polarssl/error.h>
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20 #include <polarssl/certs.h>
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21
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22 #define MAX_SW_SIZE 10485760
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23 #define MAX_LIST_SIZE 1048576
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24
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25 #define LIST_RESOURCE "/incoming/aheinecke/test"
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26 #define SW_RESOURCE "/incoming/aheinecke/test"
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27
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28
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29 Downloader::Downloader(QObject* parent, const QString& url,
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30 const QByteArray& certificate,
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31 const QDateTime& newestSW,
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32 const QDateTime& newestList,
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33 const QString& resourceSW,
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34 const QString& resourceList):
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35 QThread(parent),
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36 mLastModSW(newestSW),
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37 mLastModList(newestList),
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38 mResourceSW(resourceSW),
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39 mResourceList(resourceList),
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40 mSSLConnection(url, certificate)
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41 {
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42 }
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44
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45 Downloader::~Downloader() {
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46 }
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47
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48 QString Downloader::getDataDirectory()
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49 {
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50 QString candidate =
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51 QStandardPaths::writableLocation(QStandardPaths::DataLocation);
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52
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53 if (candidate.isEmpty()) {
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54 qDebug() << "Could not find writeable locaction for me";
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55 return QString();
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56 }
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57
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58 QDir cDir(candidate);
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59
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60 if (!cDir.exists()) {
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61 if (!cDir.mkpath(candidate)) {
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62 qDebug() << "Could not create path to: " << candidate;
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63 return QString();
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64 }
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65 }
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66 return cDir.absolutePath();
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67 }
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68
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69
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70 QDateTime Downloader::getLastModifiedHeader(const QString &resource) {
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71 int ret = -1;
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72 QByteArray response;
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73 QTextStream responseStream(&response);
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74 QLocale cLocale = QLocale::c();
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75 QString headRequest =
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76 QString::fromLatin1("HEAD %1 HTTP/1.1\r\n"
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77 "Connection: Keep-Alive\r\n"
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78 "\r\n\r\n").arg(resource);
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79
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80 ret = mSSLConnection.write(headRequest.toUtf8());
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81 if (ret != 0) {
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82 emit error (tr("Connection lost"), SSLConnection::ConnectionLost);
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83 return QDateTime();
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84 }
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85
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86 response = mSSLConnection.read(1024);
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87
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88 if (response.isNull()) {
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89 qDebug() << "No response";
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90 emit error (tr("Connection lost"), SSLConnection::ConnectionLost);
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91 return QDateTime();
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92 }
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93
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94 while (1) {
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95 QString line = responseStream.readLine();
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96 if (line.isNull()) {
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97 break;
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98 }
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99 if (line.startsWith("Last-Modified:")) {
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100 QDateTime candidate = cLocale.toDateTime(line, "'Last-Modified: 'ddd, dd MMM yyyy HH:mm:ss' GMT'");
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101 qDebug() << "Parsed line : " << line << " to " << candidate;
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102 if (candidate.isValid()) {
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103 return candidate;
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104 }
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105 }
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106 }
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107
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108 emit error (tr("Invalid response from the server"), SSLConnection::InvalidResponse);
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109 return QDateTime();
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110 }
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111
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112 bool Downloader::downloadFile(const QString &resource,
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113 const QString &fileName,
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114 size_t maxSize)
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115 {
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116 int ret = -1;
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117 size_t bytesRead = 0;
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118 QString getRequest =
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119 QString::fromLatin1("GET %1 HTTP/1.1\r\n\r\n").arg(resource);
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120
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121 QSaveFile outputFile(fileName);
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122
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123 ret = mSSLConnection.write(getRequest.toUtf8());
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124
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125 // Open / Create the file to write to.
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126 if (!outputFile.open(QIODevice::WriteOnly)) {
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127 qDebug() << "Failed to open file";
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128 return false;
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129 }
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130
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131 if (ret != 0) {
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132 emit error(tr("Connection lost"), SSLConnection::ConnectionLost);
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133 return false;
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134 }
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135
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136 do {
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137 QByteArray response = mSSLConnection.read(8192);
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138 if (response.isNull()) {
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139 qDebug() << "Error reading response";
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140 emit error(tr("Connection lost"), SSLConnection::ConnectionLost);
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141 return false;
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142 }
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143 if (response.isEmpty()) {
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144 /* We have read everything there is to read */
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145 break;
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146 }
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147
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148 outputFile.write(response);
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
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149 bytesRead += response.size();
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
150 } while (bytesRead < maxSize);
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
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151
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Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
152 return outputFile.commit();
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
153 }
27
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
154
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
155 void Downloader::run() {
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
156 int ret;
32
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
157 QDateTime remoteModList;
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Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
158 QDateTime remoteModSW;
27
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
159
45
c6125d73faf4 Move SSLConnection into it's own class
Andre Heinecke <aheinecke@intevation.de>
parents: 35
diff changeset
160 if (!mSSLConnection.initialized()) {
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parents: 35
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161 emit error(tr("Failed to initialize SSL Module."), SSLConnection::ErrUnknown);
27
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
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162 return;
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
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163 }
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
164
45
c6125d73faf4 Move SSLConnection into it's own class
Andre Heinecke <aheinecke@intevation.de>
parents: 35
diff changeset
165 ret = mSSLConnection.connect();
32
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
166
27
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
167 if (ret != 0) {
45
c6125d73faf4 Move SSLConnection into it's own class
Andre Heinecke <aheinecke@intevation.de>
parents: 35
diff changeset
168 emit error(tr("Failed to connect."),
c6125d73faf4 Move SSLConnection into it's own class
Andre Heinecke <aheinecke@intevation.de>
parents: 35
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169 mSSLConnection.getLastError());
27
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
170 return;
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
171 }
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
172
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
173 emit progress(tr("Connected"), 1, -1);
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
174
45
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Andre Heinecke <aheinecke@intevation.de>
parents: 35
diff changeset
175 remoteModSW = getLastModifiedHeader(mResourceSW);
c6125d73faf4 Move SSLConnection into it's own class
Andre Heinecke <aheinecke@intevation.de>
parents: 35
diff changeset
176 remoteModList = getLastModifiedHeader(mResourceList);
32
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
177
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
178 if (!remoteModSW.isValid() || !remoteModList.isValid()) {
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
179 qDebug() << "Could not read headers";
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
180 return;
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
181 }
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
182
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
183 if (!mLastModSW.isValid() || remoteModSW > mLastModSW) {
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
184 QString dataDirectory = getDataDirectory();
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
185
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Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
186 if (dataDirectory.isEmpty()) {
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
187 qDebug() << "Failed to get data directory";
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
188 return;
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
189 }
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
190
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Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
191 QString fileName = dataDirectory.append("/SW-")
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
192 .append(remoteModSW.toString("yyyymmddHHmmss"))
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
193 .append(".exe");
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
194
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
195 qDebug() << "fileName: " << fileName;
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
196
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
197 if (!downloadFile(QString::fromLatin1(SW_RESOURCE),
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
198 fileName, MAX_SW_SIZE)) {
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
199 return;
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
200 }
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
201
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
202 emit newSoftwareAvailable(fileName, remoteModSW);
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
203 } else if (!mLastModList.isValid() || remoteModList > mLastModList) {
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
204 QString dataDirectory = getDataDirectory();
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
205
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
206 if (dataDirectory.isEmpty()) {
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
207 qDebug() << "Failed to get data directory";
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
208 return;
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
209 }
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
210
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
211 QString fileName = dataDirectory.append("/list-")
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
212 .append(remoteModSW.toString("yyyymmddHHmmss"))
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
213 .append(".txt");
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
214
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
215 qDebug() << "fileName: " << fileName;
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
216
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
217 if (!downloadFile(QString::fromLatin1(LIST_RESOURCE),
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
218 fileName, MAX_LIST_SIZE)) {
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
219 return;
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
220 }
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
221
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
222 emit newListAvailable(fileName, remoteModList);
d8e93fa1fc93 Downloader logic
Andre Heinecke <andre.heinecke@intevation.de>
parents: 27
diff changeset
223 }
27
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
224
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
225 emit progress(tr("Closing"), 1, -1);
62cd56cea09b Start on polarssl Downloader.
Andre Heinecke <andre.heinecke@intevation.de>
parents: 18
diff changeset
226 }
http://wald.intevation.org/projects/trustbridge/