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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 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 Qt3Support 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 "q3localfs.h" |
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43 |
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44 #ifndef QT_NO_NETWORKPROTOCOL |
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45 |
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46 #include "qfileinfo.h" |
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47 #include "qfile.h" |
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48 #include "q3url.h" |
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49 #include "qurlinfo.h" |
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50 #include "qapplication.h" |
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51 #include "q3urloperator.h" |
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52 #include "qpointer.h" |
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53 #include "q3valuelist.h" |
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54 |
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55 QT_BEGIN_NAMESPACE |
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56 |
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57 //#define QLOCALFS_DEBUG |
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58 |
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59 |
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60 /*! |
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61 \class Q3LocalFs |
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62 \brief The Q3LocalFs class is an implementation of a |
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63 QNetworkProtocol that works on the local file system. |
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64 |
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65 \compat |
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66 |
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67 This class is derived from QNetworkProtocol. Q3LocalFs is not |
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68 normally used directly, but rather through a QUrlOperator, for |
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69 example: |
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70 \snippet doc/src/snippets/code/src_qt3support_network_q3localfs.cpp 0 |
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71 |
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72 This code will only work if the Q3LocalFs class is registered; to |
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73 register the class, you must call qInitNetworkProtocols() before |
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74 using a QUrlOperator with Q3LocalFs. |
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75 |
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76 If you really need to use Q3LocalFs directly, don't forget |
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77 to set its QUrlOperator with setUrl(). |
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78 |
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79 \sa Q3NetworkProtocol, Q3UrlOperator |
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80 */ |
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81 |
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82 /*! |
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83 Constructor. |
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84 */ |
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85 |
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86 Q3LocalFs::Q3LocalFs() |
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87 : Q3NetworkProtocol() |
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88 { |
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89 } |
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90 |
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91 static int convertPermissions(QFileInfo *fi) |
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92 { |
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93 int p = 0; |
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94 if ( fi->permission( QFileInfo::ReadOwner ) ) |
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95 p |= QUrlInfo::ReadOwner; |
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96 if ( fi->permission( QFileInfo::WriteOwner ) ) |
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97 p |= QUrlInfo::WriteOwner; |
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98 if ( fi->permission( QFileInfo::ExeOwner ) ) |
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99 p |= QUrlInfo::ExeOwner; |
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100 if ( fi->permission( QFileInfo::ReadGroup ) ) |
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101 p |= QUrlInfo::ReadGroup; |
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102 if ( fi->permission( QFileInfo::WriteGroup ) ) |
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103 p |= QUrlInfo::WriteGroup; |
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104 if ( fi->permission( QFileInfo::ExeGroup ) ) |
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105 p |= QUrlInfo::ExeGroup; |
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106 if ( fi->permission( QFileInfo::ReadOther ) ) |
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107 p |= QUrlInfo::ReadOther; |
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108 if ( fi->permission( QFileInfo::WriteOther ) ) |
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109 p |= QUrlInfo::WriteOther; |
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110 if ( fi->permission( QFileInfo::ExeOther ) ) |
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111 p |= QUrlInfo::ExeOther; |
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112 return p; |
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113 } |
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114 |
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115 /*! |
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116 \reimp |
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117 */ |
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118 |
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119 void Q3LocalFs::operationListChildren( Q3NetworkOperation *op ) |
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120 { |
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121 #ifdef QLOCALFS_DEBUG |
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122 qDebug( "Q3LocalFs: operationListChildren" ); |
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123 #endif |
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124 op->setState( StInProgress ); |
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125 |
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126 dir = QDir( url()->path() ); |
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127 dir.setNameFilter( url()->nameFilter() ); |
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128 dir.setMatchAllDirs( true ); |
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129 if ( !dir.isReadable() ) { |
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130 QString msg = tr( "Could not read directory\n%1" ).arg( url()->path() ); |
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131 op->setState( StFailed ); |
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132 op->setProtocolDetail( msg ); |
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133 op->setErrorCode( (int)ErrListChildren ); |
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134 emit finished( op ); |
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135 return; |
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136 } |
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137 |
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138 QFileInfoList filist = dir.entryInfoList(QDir::All | QDir::Hidden | QDir::System); |
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139 if ( filist.isEmpty() ) { |
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140 QString msg = tr( "Could not read directory\n%1" ).arg( url()->path() ); |
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141 op->setState( StFailed ); |
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142 op->setProtocolDetail( msg ); |
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143 op->setErrorCode( (int)ErrListChildren ); |
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144 emit finished( op ); |
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145 return; |
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146 } |
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147 |
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148 emit start( op ); |
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149 |
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150 Q3ValueList<QUrlInfo> infos; |
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151 for (int i = 0; i < filist.size(); ++i) { |
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152 QFileInfo fi = filist.at(i); |
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153 infos << QUrlInfo( fi.fileName(), convertPermissions(&fi), fi.owner(), fi.group(), |
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154 fi.size(), fi.lastModified(), fi.lastRead(), fi.isDir(), fi.isFile(), |
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155 fi.isSymLink(), fi.isWritable(), fi.isReadable(), fi.isExecutable() ); |
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156 } |
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157 emit newChildren( infos, op ); |
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158 op->setState( StDone ); |
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159 emit finished( op ); |
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160 } |
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161 |
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162 /*! |
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163 \reimp |
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164 */ |
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165 |
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166 void Q3LocalFs::operationMkDir( Q3NetworkOperation *op ) |
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167 { |
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168 #ifdef QLOCALFS_DEBUG |
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169 qDebug( "Q3LocalFs: operationMkDir" ); |
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170 #endif |
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171 op->setState( StInProgress ); |
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172 QString dirname = op->arg( 0 ); |
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173 |
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174 dir = QDir( url()->path() ); |
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175 if ( dir.mkdir( dirname ) ) { |
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176 QFileInfo fi( dir, dirname ); |
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177 QUrlInfo inf( fi.fileName(), convertPermissions(&fi), fi.owner(), fi.group(), |
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178 fi.size(), fi.lastModified(), fi.lastRead(), fi.isDir(), fi.isFile(), |
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179 fi.isSymLink(), fi.isWritable(), fi.isReadable(), fi.isExecutable() ); |
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180 emit newChild( inf, op ); |
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181 op->setState( StDone ); |
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182 emit createdDirectory( inf, op ); |
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183 emit finished( op ); |
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184 } else { |
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185 QString msg = tr( "Could not create directory\n%1" ).arg( dirname ); |
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186 op->setState( StFailed ); |
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187 op->setProtocolDetail( msg ); |
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188 op->setErrorCode( (int)ErrMkDir ); |
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189 emit finished( op ); |
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190 } |
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191 } |
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192 |
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193 /*! |
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194 \reimp |
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195 */ |
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196 |
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197 void Q3LocalFs::operationRemove( Q3NetworkOperation *op ) |
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198 { |
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199 #ifdef QLOCALFS_DEBUG |
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200 qDebug( "Q3LocalFs: operationRemove" ); |
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201 #endif |
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202 op->setState( StInProgress ); |
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203 QString name = Q3Url( op->arg( 0 ) ).path(); |
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204 bool deleted = false; |
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205 |
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206 dir = QDir( url()->path() ); |
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207 |
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208 QFileInfo fi( dir, name ); |
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209 if ( fi.isDir() ) { |
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210 if ( dir.rmdir( name ) ) |
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211 deleted = true; |
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212 } |
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213 |
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214 if ( deleted || dir.remove( name ) ) { |
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215 op->setState( StDone ); |
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216 emit removed( op ); |
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217 emit finished( op ); |
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218 } else { |
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219 QString msg = tr( "Could not remove file or directory\n%1" ).arg( name ); |
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220 op->setState( StFailed ); |
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221 op->setProtocolDetail( msg ); |
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222 op->setErrorCode( (int)ErrRemove ); |
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223 emit finished( op ); |
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224 } |
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225 } |
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226 |
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227 /*! |
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228 \reimp |
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229 */ |
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230 |
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231 void Q3LocalFs::operationRename( Q3NetworkOperation *op ) |
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232 { |
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233 #ifdef QLOCALFS_DEBUG |
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234 qDebug( "Q3LocalFs: operationRename" ); |
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235 #endif |
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236 op->setState( StInProgress ); |
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237 QString oldname = op->arg( 0 ); |
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238 QString newname = op->arg( 1 ); |
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239 |
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240 dir = QDir( url()->path() ); |
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241 if ( dir.rename( oldname, newname ) ) { |
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242 op->setState( StDone ); |
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243 emit itemChanged( op ); |
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244 emit finished( op ); |
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245 } else { |
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246 QString msg = tr( "Could not rename\n%1\nto\n%2" ).arg( oldname ).arg( newname ); |
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247 op->setState( StFailed ); |
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248 op->setProtocolDetail( msg ); |
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249 op->setErrorCode( (int)ErrRename ); |
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250 emit finished( op ); |
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251 } |
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252 } |
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253 |
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254 /*! |
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255 \reimp |
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256 */ |
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257 |
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258 void Q3LocalFs::operationGet( Q3NetworkOperation *op ) |
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259 { |
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260 #ifdef QLOCALFS_DEBUG |
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261 qDebug( "Q3LocalFs: operationGet" ); |
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262 #endif |
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263 op->setState( StInProgress ); |
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264 QString from = Q3Url( op->arg( 0 ) ).path(); |
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265 |
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266 QFile f( from ); |
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267 if ( !f.open( IO_ReadOnly ) ) { |
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268 #ifdef QLOCALFS_DEBUG |
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269 qDebug( "Q3LocalFs: could not open %s", from.latin1() ); |
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270 #endif |
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271 QString msg = tr( "Could not open\n%1" ).arg( from ); |
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272 op->setState( StFailed ); |
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273 op->setProtocolDetail( msg ); |
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274 op->setErrorCode( (int)ErrGet ); |
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275 emit finished( op ); |
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276 return; |
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277 } |
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278 |
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279 QByteArray s; |
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280 emit dataTransferProgress( 0, f.size(), op ); |
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281 if ( f.size() != 0 ) { |
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282 int blockSize = calcBlockSize( f.size() ); |
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283 if ( (int)f.size() < blockSize ) { |
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284 s.resize( f.size() ); |
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285 f.readBlock( s.data(), f.size() ); |
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286 emit data( s, op ); |
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287 emit dataTransferProgress( f.size(), f.size(), op ); |
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288 #ifdef QLOCALFS_DEBUG |
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289 qDebug( "Q3LocalFs: got all %d bytes at once", f.size() ); |
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290 #endif |
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291 } else { |
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292 s.resize( blockSize ); |
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293 int remaining = f.size(); |
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294 QPointer<QObject> that = this; |
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295 while ( that && remaining > 0 ) { |
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296 if ( operationInProgress() != op ) |
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297 return; |
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298 if ( remaining >= blockSize ) { |
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299 f.readBlock( s.data(), blockSize ); |
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300 emit data( s, op ); |
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301 emit dataTransferProgress( f.size() - remaining, f.size(), op ); |
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302 remaining -= blockSize; |
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303 } else { |
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304 s.resize( remaining ); |
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305 f.readBlock( s.data(), remaining ); |
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306 emit data( s, op ); |
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307 emit dataTransferProgress( f.size() - remaining, f.size(), op ); |
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308 remaining -= remaining; |
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309 } |
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310 qApp->processEvents(); |
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311 } |
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312 if ( !that ) |
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313 return; |
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314 #ifdef QLOCALFS_DEBUG |
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315 qDebug( "Q3LocalFs: got all %d bytes step by step", f.size() ); |
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316 #endif |
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317 emit dataTransferProgress( f.size(), f.size(), op ); |
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318 } |
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319 } |
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320 op->setState( StDone ); |
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321 f.close(); |
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322 emit finished( op ); |
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323 } |
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324 |
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325 /*! |
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326 \reimp |
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327 */ |
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328 |
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329 void Q3LocalFs::operationPut( Q3NetworkOperation *op ) |
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330 { |
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331 #ifdef QLOCALFS_DEBUG |
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332 qDebug( "Q3LocalFs: operationPut" ); |
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333 #endif |
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334 op->setState( StInProgress ); |
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335 QString to = Q3Url( op->arg( 0 ) ).path(); |
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336 |
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337 QFile f( to ); |
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338 if ( !f.open( IO_WriteOnly ) ) { |
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339 QString msg = tr( "Could not write\n%1" ).arg( to ); |
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340 op->setState( StFailed ); |
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341 op->setProtocolDetail( msg ); |
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342 op->setErrorCode( (int)ErrPut ); |
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343 emit finished( op ); |
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344 return; |
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345 } |
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346 |
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347 QByteArray ba( op->rawArg( 1 ) ); |
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348 emit dataTransferProgress( 0, ba.size(), op ); |
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349 int blockSize = calcBlockSize( ba.size() ); |
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350 if ( (int)ba.size() < blockSize ) { |
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351 f.writeBlock( ba.data(), ba.size() ); |
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352 emit dataTransferProgress( ba.size(), ba.size(), op ); |
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353 } else { |
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354 int i = 0; |
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355 while ( i + blockSize < (int)ba.size() - 1 ) { |
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356 if ( operationInProgress() != op ) |
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357 return; |
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358 f.writeBlock( &ba.data()[ i ], blockSize ); |
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359 f.flush(); |
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360 emit dataTransferProgress( i + blockSize, ba.size(), op ); |
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361 i += blockSize; |
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362 QPointer<QObject> that = this; |
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363 qApp->processEvents(); |
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364 if (!that) |
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365 return; |
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366 } |
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367 if ( i < (int)ba.size() - 1 ) |
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368 f.writeBlock( &ba.data()[ i ], ba.size() - i ); |
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369 emit dataTransferProgress( ba.size(), ba.size(), op ); |
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370 } |
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371 op->setState( StDone ); |
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372 f.close(); |
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373 emit finished( op ); |
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374 } |
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375 |
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376 /*! |
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377 \reimp |
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378 */ |
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379 |
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380 int Q3LocalFs::supportedOperations() const |
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381 { |
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382 return OpListChildren | OpMkDir | OpRemove | OpRename | OpGet | OpPut; |
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383 } |
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384 |
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385 /*! |
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386 \internal |
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387 */ |
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388 |
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389 int Q3LocalFs::calcBlockSize( int totalSize ) const |
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390 { |
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391 if ( totalSize == 0 ) |
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392 return 1024; |
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393 int s = totalSize / 100; |
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394 // we want a block size between 1KB and 1MB |
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395 if ( s < 1024 ) |
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396 s = 1024; |
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397 if ( s > 1048576 ) |
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398 s = 1048576; |
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399 return s; |
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400 } |
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401 |
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402 QT_END_NAMESPACE |
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403 |
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404 #endif // QT_NO_NETWORKPROTOCOL |