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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtNetwork module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include "qfilenetworkreply_p.h" |
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43 |
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44 #include "QtCore/qdatetime.h" |
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45 #include <QtCore/QCoreApplication> |
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46 #include <QtCore/QFileInfo> |
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47 #include <QDebug> |
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48 |
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49 QT_BEGIN_NAMESPACE |
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50 |
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51 QFileNetworkReplyPrivate::QFileNetworkReplyPrivate() |
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52 : QNetworkReplyPrivate(), fileEngine(0), fileSize(0), filePos(0) |
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53 { |
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54 } |
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55 |
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56 QFileNetworkReplyPrivate::~QFileNetworkReplyPrivate() |
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57 { |
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58 delete fileEngine; |
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59 } |
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60 |
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61 QFileNetworkReply::~QFileNetworkReply() |
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62 { |
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63 } |
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64 |
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65 QFileNetworkReply::QFileNetworkReply(QObject *parent, const QNetworkRequest &req, const QNetworkAccessManager::Operation op) |
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66 : QNetworkReply(*new QFileNetworkReplyPrivate(), parent) |
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67 { |
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68 setRequest(req); |
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69 setUrl(req.url()); |
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70 setOperation(op); |
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71 QNetworkReply::open(QIODevice::ReadOnly); |
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72 |
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73 qRegisterMetaType<QNetworkReply::NetworkError>("QNetworkReply::NetworkError"); |
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74 |
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75 QFileNetworkReplyPrivate *d = (QFileNetworkReplyPrivate*) d_func(); |
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76 |
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77 QUrl url = req.url(); |
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78 if (url.host() == QLatin1String("localhost")) |
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79 url.setHost(QString()); |
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80 |
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81 #if !defined(Q_OS_WIN) |
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82 // do not allow UNC paths on Unix |
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83 if (!url.host().isEmpty()) { |
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84 // we handle only local files |
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85 QString msg = QCoreApplication::translate("QNetworkAccessFileBackend", "Request for opening non-local file %1").arg(url.toString()); |
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86 setError(QNetworkReply::ProtocolInvalidOperationError, msg); |
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87 QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection, |
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88 Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ProtocolInvalidOperationError)); |
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89 QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection); |
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90 return; |
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91 } |
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92 #endif |
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93 if (url.path().isEmpty()) |
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94 url.setPath(QLatin1String("/")); |
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95 setUrl(url); |
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96 |
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97 |
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98 QString fileName = url.toLocalFile(); |
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99 if (fileName.isEmpty()) { |
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100 fileName = url.toString(QUrl::RemoveAuthority | QUrl::RemoveFragment | QUrl::RemoveQuery); |
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101 } |
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102 |
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103 QFileInfo fi(fileName); |
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104 if (fi.isDir()) { |
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105 QString msg = QCoreApplication::translate("QNetworkAccessFileBackend", "Cannot open %1: Path is a directory").arg(url.toString()); |
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106 setError(QNetworkReply::ContentOperationNotPermittedError, msg); |
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107 QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection, |
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108 Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ContentOperationNotPermittedError)); |
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109 QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection); |
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110 return; |
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111 } |
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112 |
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113 d->fileEngine = QAbstractFileEngine::create(fileName); |
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114 bool opened = d->fileEngine->open(QIODevice::ReadOnly | QIODevice::Unbuffered); |
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115 |
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116 // could we open the file? |
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117 if (!opened) { |
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118 QString msg = QCoreApplication::translate("QNetworkAccessFileBackend", "Error opening %1: %2") |
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119 .arg(fileName, d->fileEngine->errorString()); |
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120 |
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121 if (fi.exists()) { |
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122 setError(QNetworkReply::ContentAccessDenied, msg); |
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123 QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection, |
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124 Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ContentAccessDenied)); |
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125 } else { |
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126 setError(QNetworkReply::ContentNotFoundError, msg); |
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127 QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection, |
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128 Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ContentNotFoundError)); |
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129 } |
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130 QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection); |
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131 return; |
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132 } |
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133 |
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134 d->fileSize = fi.size(); |
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135 setHeader(QNetworkRequest::LastModifiedHeader, fi.lastModified()); |
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136 setHeader(QNetworkRequest::ContentLengthHeader, d->fileSize); |
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137 |
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138 QMetaObject::invokeMethod(this, "metaDataChanged", Qt::QueuedConnection); |
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139 QMetaObject::invokeMethod(this, "downloadProgress", Qt::QueuedConnection, |
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140 Q_ARG(qint64, d->fileSize), Q_ARG(qint64, d->fileSize)); |
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141 QMetaObject::invokeMethod(this, "readyRead", Qt::QueuedConnection); |
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142 QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection); |
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143 } |
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144 |
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145 bool QFileNetworkReplyPrivate::isFinished() const |
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146 { |
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147 return true; |
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148 } |
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149 |
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150 void QFileNetworkReply::close() |
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151 { |
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152 Q_D(QFileNetworkReply); |
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153 QNetworkReply::close(); |
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154 if (d->fileEngine) |
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155 d->fileEngine->close(); |
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156 } |
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157 |
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158 void QFileNetworkReply::abort() |
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159 { |
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160 Q_D(QFileNetworkReply); |
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161 QNetworkReply::close(); |
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162 if (d->fileEngine) |
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163 d->fileEngine->close(); |
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164 } |
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165 |
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166 qint64 QFileNetworkReply::bytesAvailable() const |
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167 { |
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168 Q_D(const QFileNetworkReply); |
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169 if (!d->fileEngine) |
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170 return 0; |
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171 |
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172 return QNetworkReply::bytesAvailable() + d->fileSize - d->filePos; |
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173 } |
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174 |
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175 bool QFileNetworkReply::isSequential () const |
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176 { |
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177 return true; |
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178 } |
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179 |
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180 qint64 QFileNetworkReply::size() const |
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181 { |
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182 Q_D(const QFileNetworkReply); |
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183 return d->fileSize; |
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184 } |
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185 |
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186 /*! |
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187 \internal |
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188 */ |
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189 qint64 QFileNetworkReply::readData(char *data, qint64 maxlen) |
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190 { |
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191 Q_D(QFileNetworkReply); |
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192 if (!d->fileEngine) |
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193 return -1; |
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194 |
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195 qint64 ret = d->fileEngine->read(data, maxlen); |
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196 if (ret == 0 && bytesAvailable() == 0) { |
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197 return -1; // everything had been read |
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198 } else if (ret > 0) { |
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199 d->filePos += ret; |
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200 } |
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201 |
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202 return ret; |
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203 } |
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204 |
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205 |
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206 QT_END_NAMESPACE |
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207 |
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208 #include "moc_qfilenetworkreply_p.cpp" |
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209 |