1 | /* $Id: UINetworkRequest.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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2 | /** @file
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3 | * VBox Qt GUI - UINetworkRequest class implementation.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2011-2023 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 | /* Qt includes: */
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29 | #include <QVariant>
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30 |
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31 | /* GUI includes: */
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32 | #include "UINetworkRequest.h"
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33 | #include "UINetworkRequestManager.h"
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34 |
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35 | /* Other VBox includes: */
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36 | #include "iprt/assert.h"
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37 |
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38 |
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39 | UINetworkRequest::UINetworkRequest(UINetworkRequestType enmType,
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40 | const QList<QUrl> &urls,
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41 | const QString &strTarget,
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42 | const UserDictionary &requestHeaders)
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43 | : m_enmType(enmType)
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44 | , m_urls(urls)
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45 | , m_strTarget(strTarget)
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46 | , m_requestHeaders(requestHeaders)
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47 | , m_iUrlIndex(-1)
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48 | , m_fRunning(false)
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49 | {
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50 | prepare();
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51 | }
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52 |
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53 | UINetworkRequest::~UINetworkRequest()
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54 | {
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55 | cleanup();
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56 | }
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57 |
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58 | void UINetworkRequest::sltHandleNetworkReplyProgress(qint64 iReceived, qint64 iTotal)
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59 | {
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60 | /* Notify network-request listeners: */
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61 | emit sigProgress(iReceived, iTotal);
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62 | }
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63 |
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64 | void UINetworkRequest::sltHandleNetworkReplyFinish()
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65 | {
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66 | /* Mark network-reply as non-running: */
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67 | m_fRunning = false;
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68 |
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69 | /* Make sure network-reply still valid: */
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70 | if (!m_pReply)
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71 | return;
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72 |
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73 | /* If network-reply has no errors: */
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74 | if (m_pReply->error() == UINetworkReply::NoError)
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75 | {
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76 | /* Notify network-request listeners: */
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77 | emit sigFinished();
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78 | }
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79 | /* If network-request was canceled: */
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80 | else if (m_pReply->error() == UINetworkReply::OperationCanceledError)
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81 | {
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82 | /* Notify network-request listeners: */
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83 | emit sigCanceled();
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84 | }
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85 | /* If some other error occured: */
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86 | else
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87 | {
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88 | /* Check if we are able to handle error: */
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89 | bool fErrorHandled = false;
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90 |
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91 | /* Handle redirection: */
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92 | switch (m_pReply->error())
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93 | {
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94 | case UINetworkReply::ContentReSendError:
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95 | {
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96 | /* Check whether redirection link was acquired: */
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97 | const QString strRedirect = m_pReply->header(UINetworkReply::LocationHeader).toString();
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98 | if (!strRedirect.isEmpty())
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99 | {
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100 | /* Cleanup current network-reply first: */
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101 | cleanupNetworkReply();
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102 |
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103 | /* Choose redirect-source as current url: */
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104 | m_url = strRedirect;
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105 |
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106 | /* Create new network-reply finally: */
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107 | prepareNetworkReply();
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108 |
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109 | /* Mark this error handled: */
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110 | fErrorHandled = true;
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111 | }
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112 | break;
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113 | }
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114 | default:
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115 | break;
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116 | }
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117 |
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118 | /* If error still unhandled: */
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119 | if (!fErrorHandled)
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120 | {
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121 | /* Check if we have other urls in queue: */
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122 | if (m_iUrlIndex < m_urls.size() - 1)
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123 | {
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124 | /* Cleanup current network-reply first: */
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125 | cleanupNetworkReply();
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126 |
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127 | /* Choose next url as current: */
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128 | ++m_iUrlIndex;
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129 | m_url = m_urls.at(m_iUrlIndex);
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130 |
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131 | /* Create new network-reply finally: */
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132 | prepareNetworkReply();
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133 | }
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134 | else
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135 | {
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136 | /* Notify network-request listeners: */
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137 | emit sigFailed(m_pReply->errorString());
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138 | }
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139 | }
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140 | }
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141 | }
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142 |
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143 | void UINetworkRequest::sltCancel()
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144 | {
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145 | /* Abort network-reply if present: */
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146 | if (m_pReply)
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147 | {
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148 | if (m_fRunning)
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149 | m_pReply->abort();
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150 | else
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151 | emit sigCanceled();
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152 | }
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153 | }
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154 |
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155 | void UINetworkRequest::prepare()
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156 | {
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157 | /* Choose first url as current: */
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158 | m_iUrlIndex = 0;
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159 | m_url = m_urls.at(m_iUrlIndex);
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160 |
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161 | /* Prepare network-reply: */
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162 | prepareNetworkReply();
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163 | }
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164 |
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165 | void UINetworkRequest::prepareNetworkReply()
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166 | {
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167 | /* Create network-reply: */
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168 | m_pReply = new UINetworkReply(m_enmType, m_url, m_strTarget, m_requestHeaders);
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169 | AssertPtrReturnVoid(m_pReply.data());
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170 | {
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171 | /* Prepare network-reply: */
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172 | connect(m_pReply.data(), &UINetworkReply::downloadProgress,
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173 | this, &UINetworkRequest::sltHandleNetworkReplyProgress);
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174 | connect(m_pReply.data(), &UINetworkReply::finished,
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175 | this, &UINetworkRequest::sltHandleNetworkReplyFinish);
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176 |
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177 | /* Mark network-reply as running: */
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178 | m_fRunning = true;
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179 |
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180 | /* Notify network-request listeners: */
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181 | emit sigStarted();
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182 | }
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183 | }
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184 |
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185 | void UINetworkRequest::cleanupNetworkReply()
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186 | {
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187 | /* Destroy network-reply: */
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188 | AssertPtrReturnVoid(m_pReply.data());
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189 | m_pReply->disconnect();
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190 | m_pReply->deleteLater();
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191 | m_pReply = 0;
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192 | }
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193 |
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194 | void UINetworkRequest::cleanup()
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195 | {
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196 | /* Cleanup network-reply: */
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197 | cleanupNetworkReply();
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198 | }
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