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annotate ui/downloader.h @ 1061:db831a204a6b

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(issue38) Show error message as messagebox if the window is visible
author Andre Heinecke <andre.heinecke@intevation.de>
date Wed, 10 Sep 2014 11:05:34 +0200
parents 78798d3af8f0
children 2a1aa9df8f11
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1 /* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU GPL (v>=2)
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5 * and comes with ABSOLUTELY NO WARRANTY!
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6 * See LICENSE.txt for details.
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7 */
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8 #ifndef DOWNLOADER_H
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9 #define DOWNLOADER_H
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10 /**
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11 * @file downloader.h
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12 * @brief High level API to download necessary data.
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13 *
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14 */
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15
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16 #include <QThread>
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17 #include <QDateTime>
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18 #include <QString>
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19 #include <QByteArray>
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20
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21 #include "sslconnection.h"
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22
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23 class Downloader: public QThread
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24 {
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25 Q_OBJECT
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26
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27 public:
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28 /**
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29 * @brief Construct a downloader with a specific certificate
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30 *
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31 * The downloader will check the last-modified date of the
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32 * certificate list / sw on the server at the specified url
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33 * and download those accordingly. If newestSW or newestList is
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34 * are valid datetimes only files modified after the respective date
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35 * are downloaded.
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36 *
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37 * Downloaded files are placed in QStandardPaths::DataLocation
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38 *
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39 * @param[in] parent the parent object.
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40 * @param[in] url the Url to download data from
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41 * @param[in] certificate optional certificate to validate https connection
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42 * @param[in] newestSW datetime after which software should be downloaded
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43 * @param[in] newestList datetime after which the list should be downloaded
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44 * @param[in] resourceSW the path where the software is to be found
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45 * @param[in] resourceList the path where the list is to be found
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46 * @param[in] downloadSW TODO
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47 */
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48 Downloader(QObject* parent, const QString& url,
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49 const QByteArray& certificate = QByteArray(),
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50 const QDateTime& newestSW = QDateTime(),
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51 const QDateTime& newestList = QDateTime(),
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52 const QString& resourceSW = QString(),
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53 const QString& resourceList = QString(),
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54 bool downloadSW = true);
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55
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56 ~Downloader();
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57
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58 /**
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59 * @brief get the directory where the downloader saves data
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60 *
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61 * If the directory does not exist this function ensures that it
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62 * is created.
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63 *
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64 * @returns The directory in which downloaded files are placed.
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65 **/
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66 QString getDataDirectory();
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67
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68 /**
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69 * @brief get the current error state
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70 *
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71 * @returns The current error state.
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72 **/
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73 SSLConnection::ErrorCode getErrorState();
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74
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75
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76 /**
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77 * @brief forward the setCiphersuites call to the sslconnection
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78 *
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79 * see sslconnection.h for details.
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80 */
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81 void setCiphersuites(int suites[]);
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82
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83 protected:
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84 void run();
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85
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86 private:
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87 QDateTime mLastModSW;
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88 QDateTime mLastModList;
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89
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90 QString mResourceSW;
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91 QString mResourceList;
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92
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93 bool mDownloadSW;
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94
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95 SSLConnection *mSSLConnection;
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96
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97 Q_SIGNALS:
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98 /**
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99 * @brief software update is available
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100 */
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101 void newSoftwareAvailable(const QString &fileName,
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102 const QDateTime &lastMod);
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103
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104 /**
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105 * @brief new certificate list available
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106 */
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107 void newListAvailable(const QString &fileName, const QDateTime &lastMod);
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108
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109 /**
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110 * @brief Some progress has been made.
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111 *
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112 * @param[out] message: A message to show. Can be empty.
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113 * @param[out] current: Value of current progress.
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114 * @param[out] total: Total value of possible progress
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115 */
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116 void progress(const QString &message, int current, int total);
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117
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118 /**
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119 * @brief An error happened
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120 *
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121 * @param[out] message: A message to show. Can be empty.
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122 * @param[out] error: ErrorCode of this error.
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123 */
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124 void error(const QString &message, SSLConnection::ErrorCode error);
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125
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126 /**
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127 * @brief Found the last modified date for software.
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128 *
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129 * @param[out] date The last modified date.
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130 */
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131 void lastModifiedDate(const QDateTime &date);
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132 };
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133 #endif
http://wald.intevation.org/projects/trustbridge/