1 | /* $Id: UIDownloader.cpp 103710 2024-03-06 16:53:27Z vboxsync $ */
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2 | /** @file
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3 | * VBox Qt GUI - UIDownloader class implementation.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 | /* GUI includes: */
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29 | #include "VBoxUtils.h"
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30 | #include "UIDownloader.h"
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31 | #include "UIMessageCenter.h"
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32 | #include "UINetworkReply.h"
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33 |
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34 |
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35 | UIDownloader::UIDownloader()
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36 | : m_state(UIDownloaderState_Null)
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37 | {
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38 | /* Connect async listeners for our own commands: */
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39 | connect(this, &UIDownloader::sigToStartAcknowledging, this, &UIDownloader::sltStartAcknowledging, Qt::QueuedConnection);
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40 | connect(this, &UIDownloader::sigToStartDownloading, this, &UIDownloader::sltStartDownloading, Qt::QueuedConnection);
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41 | connect(this, &UIDownloader::sigToStartVerifying, this, &UIDownloader::sltStartVerifying, Qt::QueuedConnection);
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42 | }
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43 |
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44 | void UIDownloader::sltStartAcknowledging()
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45 | {
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46 | /* Set state to acknowledging: */
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47 | m_state = UIDownloaderState_Acknowledging;
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48 |
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49 | /* Send HEAD requests: */
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50 | createNetworkRequest(UINetworkRequestType_HEAD, m_sources);
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51 | }
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52 |
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53 | void UIDownloader::sltStartDownloading()
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54 | {
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55 | /* Set state to downloading: */
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56 | m_state = UIDownloaderState_Downloading;
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57 |
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58 | /* Send GET request: */
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59 | createNetworkRequest(UINetworkRequestType_GET, QList<QUrl>() << m_source, m_strTarget);
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60 | }
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61 |
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62 | void UIDownloader::sltStartVerifying()
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63 | {
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64 | /* Set state to verifying: */
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65 | m_state = UIDownloaderState_Verifying;
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66 |
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67 | /* Send GET request: */
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68 | createNetworkRequest(UINetworkRequestType_GET, QList<QUrl>() << m_strPathSHA256SumsFile);
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69 | }
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70 |
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71 | QString UIDownloader::description() const
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72 | {
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73 | /* Look for known state: */
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74 | switch (m_state)
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75 | {
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76 | case UIDownloaderState_Acknowledging: return tr("Looking for %1...");
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77 | case UIDownloaderState_Downloading: return tr("Downloading %1...");
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78 | case UIDownloaderState_Verifying: return tr("Verifying %1...");
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79 | default: break;
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80 | }
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81 | /* Return null-string by default: */
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82 | return QString();
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83 | }
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84 |
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85 | void UIDownloader::processNetworkReplyProgress(qint64 iReceived, qint64 iTotal)
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86 | {
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87 | /* Notify listeners: */
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88 | emit sigProgressChange((double)iReceived / iTotal * 100);
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89 | }
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90 |
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91 | void UIDownloader::processNetworkReplyFailed(const QString &strError)
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92 | {
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93 | /* Notify listeners: */
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94 | emit sigProgressFailed(strError);
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95 | }
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96 |
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97 | void UIDownloader::processNetworkReplyCanceled(UINetworkReply *)
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98 | {
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99 | /* Notify listeners: */
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100 | emit sigProgressCanceled();
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101 | }
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102 |
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103 | void UIDownloader::processNetworkReplyFinished(UINetworkReply *pNetworkReply)
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104 | {
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105 | /* Process reply: */
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106 | switch (m_state)
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107 | {
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108 | case UIDownloaderState_Acknowledging:
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109 | {
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110 | handleAcknowledgingResult(pNetworkReply);
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111 | break;
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112 | }
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113 | case UIDownloaderState_Downloading:
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114 | {
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115 | handleDownloadingResult(pNetworkReply);
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116 | break;
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117 | }
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118 | case UIDownloaderState_Verifying:
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119 | {
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120 | handleVerifyingResult(pNetworkReply);
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121 | break;
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122 | }
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123 | default:
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124 | break;
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125 | }
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126 | }
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127 |
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128 | void UIDownloader::handleAcknowledgingResult(UINetworkReply *pNetworkReply)
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129 | {
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130 | /* Get the final source: */
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131 | m_source = pNetworkReply->url();
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132 |
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133 | /* Ask for downloading: */
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134 | if (askForDownloadingConfirmation(pNetworkReply))
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135 | {
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136 | /* Start downloading: */
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137 | startDelayedDownloading();
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138 | }
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139 | else
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140 | {
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141 | /* Notify listeners: */
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142 | emit sigProgressFinished();
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143 | }
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144 | }
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145 |
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146 | void UIDownloader::handleDownloadingResult(UINetworkReply *pNetworkReply)
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147 | {
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148 | /* Handle downloaded object: */
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149 | handleDownloadedObject(pNetworkReply);
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150 |
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151 | /* Check whether we should do verification: */
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152 | if (!m_strPathSHA256SumsFile.isEmpty())
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153 | {
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154 | /* Start verifying: */
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155 | startDelayedVerifying();
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156 | }
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157 | else
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158 | {
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159 | /* Notify listeners: */
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160 | emit sigProgressFinished();
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161 | }
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162 | }
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163 |
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164 | void UIDownloader::handleVerifyingResult(UINetworkReply *pNetworkReply)
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165 | {
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166 | /* Handle verified object: */
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167 | handleVerifiedObject(pNetworkReply);
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168 |
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169 | /* Notify listeners: */
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170 | emit sigProgressFinished();
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171 | }
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