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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Sonic Visualiser
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5 An audio file viewer and annotation editor.
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6 Centre for Digital Music, Queen Mary, University of London.
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7 This file copyright 2007 QMUL.
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8
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9 This program is free software; you can redistribute it and/or
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10 modify it under the terms of the GNU General Public License as
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11 published by the Free Software Foundation; either version 2 of the
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12 License, or (at your option) any later version. See the file
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13 COPYING included with this distribution for more information.
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14 */
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15
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16 #include "FileSource.h"
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17
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18 #include "base/TempDirectory.h"
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19 #include "base/Exceptions.h"
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Chris@392
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20 #include "base/ProgressReporter.h"
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Chris@502
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21 #include "system/System.h"
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22
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23 #include <QNetworkAccessManager>
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24 #include <QNetworkReply>
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Chris@208
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25 #include <QFileInfo>
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26 #include <QDir>
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27 #include <QCoreApplication>
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28 #include <QThreadStorage>
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29
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30 #include <iostream>
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31 #include <cstdlib>
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32
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Chris@608
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33 #include <unistd.h>
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34
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Chris@763
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35 //#define DEBUG_FILE_SOURCE 1
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36
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37 int
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38 FileSource::m_count = 0;
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39
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40 QMutex
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41 FileSource::m_fileCreationMutex;
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42
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43 FileSource::RemoteRefCountMap
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44 FileSource::m_refCountMap;
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45
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46 FileSource::RemoteLocalMap
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47 FileSource::m_remoteLocalMap;
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48
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49 QMutex
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50 FileSource::m_mapMutex;
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51
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Chris@529
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52 #ifdef DEBUG_FILE_SOURCE
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53 static int extantCount = 0;
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54 static std::map<QString, int> urlExtantCountMap;
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55 static void incCount(QString url) {
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56 ++extantCount;
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57 if (urlExtantCountMap.find(url) == urlExtantCountMap.end()) {
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58 urlExtantCountMap[url] = 1;
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59 } else {
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60 ++urlExtantCountMap[url];
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61 }
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Chris@843
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62 cerr << "FileSource: Now " << urlExtantCountMap[url] << " for this url, " << extantCount << " total" << endl;
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63 }
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64 static void decCount(QString url) {
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65 --extantCount;
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66 --urlExtantCountMap[url];
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67 cerr << "FileSource: Now " << urlExtantCountMap[url] << " for this url, " << extantCount << " total" << endl;
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68 }
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69 #endif
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70
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71 static QThreadStorage<QNetworkAccessManager *> nms;
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72
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73 FileSource::FileSource(QString fileOrUrl, ProgressReporter *reporter,
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74 QString preferredContentType) :
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75 m_rawFileOrUrl(fileOrUrl),
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76 m_url(fileOrUrl, QUrl::StrictMode),
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77 m_localFile(0),
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78 m_reply(0),
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79 m_preferredContentType(preferredContentType),
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80 m_ok(false),
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81 m_lastStatus(0),
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82 m_resource(fileOrUrl.startsWith(':')),
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83 m_remote(isRemote(fileOrUrl)),
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84 m_done(false),
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85 m_leaveLocalFile(false),
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86 m_reporter(reporter),
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87 m_refCounted(false)
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88 {
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89 if (m_resource) { // qrc file
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90 m_url = QUrl("qrc" + fileOrUrl);
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91 }
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92
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93 if (m_url.toString() == "") {
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94 m_url = QUrl(fileOrUrl, QUrl::TolerantMode);
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95 }
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96
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97 #ifdef DEBUG_FILE_SOURCE
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98 cerr << "FileSource::FileSource(" << fileOrUrl << "): url <" << m_url.toString() << ">" << endl;
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99 incCount(m_url.toString());
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100 #endif
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101
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102 if (!canHandleScheme(m_url)) {
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103 cerr << "FileSource::FileSource: ERROR: Unsupported scheme in URL \"" << m_url.toString() << "\"" << endl;
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104 m_errorString = tr("Unsupported scheme in URL");
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105 return;
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106 }
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107
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108 init();
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109
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110 if (!isRemote() &&
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111 !isAvailable()) {
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112 #ifdef DEBUG_FILE_SOURCE
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113 cerr << "FileSource::FileSource: Failed to open local file with URL \"" << m_url.toString() << "\"; trying again assuming filename was encoded" << endl;
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114 #endif
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115 m_url = QUrl::fromEncoded(fileOrUrl.toLatin1());
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116 #ifdef DEBUG_FILE_SOURCE
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117 cerr << "FileSource::FileSource: URL is now \"" << m_url.toString() << "\"" << endl;
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118 #endif
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119 init();
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120 }
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121
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122 if (isRemote() &&
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123 (fileOrUrl.contains('%') ||
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124 fileOrUrl.contains("--"))) { // for IDNA
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125
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126 waitForStatus();
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127
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128 if (!isAvailable()) {
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129
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130 // The URL was created on the assumption that the string
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131 // was human-readable. Let's try again, this time
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132 // assuming it was already encoded.
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133 cerr << "FileSource::FileSource: Failed to retrieve URL \""
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134 << fileOrUrl.toStdString()
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135 << "\" as human-readable URL; "
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136 << "trying again treating it as encoded URL"
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137 << endl;
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138
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139 // even though our cache file doesn't exist (because the
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140 // resource was 404), we still need to ensure we're no
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141 // longer associating a filename with this url in the
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142 // refcount map -- or createCacheFile will think we've
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143 // already done all the work and no request will be sent
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144 deleteCacheFile();
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145
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146 m_url = QUrl::fromEncoded(fileOrUrl.toLatin1());
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147
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148 m_ok = false;
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149 m_done = false;
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150 m_lastStatus = 0;
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151 init();
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152 }
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153 }
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154
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155 if (!isRemote()) {
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156 emit statusAvailable();
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157 emit ready();
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158 }
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159
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160 #ifdef DEBUG_FILE_SOURCE
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161 cerr << "FileSource::FileSource(string) exiting" << endl;
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162 #endif
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163 }
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164
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165 FileSource::FileSource(QUrl url, ProgressReporter *reporter) :
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166 m_url(url),
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167 m_localFile(0),
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168 m_reply(0),
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169 m_ok(false),
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170 m_lastStatus(0),
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171 m_resource(false),
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172 m_remote(isRemote(url.toString())),
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173 m_done(false),
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174 m_leaveLocalFile(false),
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175 m_reporter(reporter),
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176 m_refCounted(false)
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177 {
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178 #ifdef DEBUG_FILE_SOURCE
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179 cerr << "FileSource::FileSource(" << url.toString() << ") [as url]" << endl;
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180 incCount(m_url.toString());
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181 #endif
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182
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183 if (!canHandleScheme(m_url)) {
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184 cerr << "FileSource::FileSource: ERROR: Unsupported scheme in URL \"" << m_url.toString() << "\"" << endl;
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185 m_errorString = tr("Unsupported scheme in URL");
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186 return;
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187 }
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188
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189 init();
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190
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191 #ifdef DEBUG_FILE_SOURCE
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192 cerr << "FileSource::FileSource(url) exiting" << endl;
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193 #endif
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194 }
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195
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196 FileSource::FileSource(const FileSource &rf) :
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197 QObject(),
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198 m_url(rf.m_url),
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199 m_localFile(0),
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200 m_reply(0),
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201 m_ok(rf.m_ok),
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202 m_lastStatus(rf.m_lastStatus),
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203 m_resource(rf.m_resource),
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204 m_remote(rf.m_remote),
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205 m_done(false),
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206 m_leaveLocalFile(false),
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207 m_reporter(rf.m_reporter),
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208 m_refCounted(false)
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209 {
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210 #ifdef DEBUG_FILE_SOURCE
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211 cerr << "FileSource::FileSource(" << m_url.toString() << ") [copy ctor]" << endl;
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212 incCount(m_url.toString());
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213 #endif
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214
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215 if (!canHandleScheme(m_url)) {
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216 cerr << "FileSource::FileSource: ERROR: Unsupported scheme in URL \"" << m_url.toString() << "\"" << endl;
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217 m_errorString = tr("Unsupported scheme in URL");
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218 return;
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219 }
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220
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221 if (!isRemote()) {
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222 m_localFilename = rf.m_localFilename;
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223 } else {
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224 QMutexLocker locker(&m_mapMutex);
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225 #ifdef DEBUG_FILE_SOURCE
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226 cerr << "FileSource::FileSource(copy ctor): ref count is "
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227 << m_refCountMap[m_url] << endl;
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228 #endif
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229 if (m_refCountMap[m_url] > 0) {
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230 m_refCountMap[m_url]++;
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231 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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232 cerr << "raised it to " << m_refCountMap[m_url] << endl;
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233 #endif
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234 m_localFilename = m_remoteLocalMap[m_url];
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235 m_refCounted = true;
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236 } else {
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237 m_ok = false;
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238 m_lastStatus = 404;
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239 }
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Chris@316
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240 }
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241
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242 m_done = true;
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243
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Chris@504
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244 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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245 cerr << "FileSource::FileSource(" << m_url.toString() << ") [copy ctor]: note: local filename is \"" << m_localFilename << "\"" << endl;
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246 #endif
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247
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Chris@527
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248 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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249 cerr << "FileSource::FileSource(copy ctor) exiting" << endl;
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Chris@504
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250 #endif
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Chris@316
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251 }
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252
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253 FileSource::~FileSource()
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254 {
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255 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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256 cerr << "FileSource(" << m_url.toString() << ")::~FileSource" << endl;
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257 decCount(m_url.toString());
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258 #endif
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259
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260 cleanup();
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261
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262 if (isRemote() && !m_leaveLocalFile) deleteCacheFile();
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263 }
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264
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265 void
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266 FileSource::init()
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267 {
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268 { // check we have a QNetworkAccessManager
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269 QMutexLocker locker(&m_mapMutex);
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270 if (!nms.hasLocalData()) {
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271 nms.setLocalData(new QNetworkAccessManager());
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272 }
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Chris@833
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273 }
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Chris@833
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274
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275 if (isResource()) {
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276 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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277 cerr << "FileSource::init: Is a resource" << endl;
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Chris@706
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278 #endif
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279 QString resourceFile = m_url.toString();
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280 resourceFile.replace(QRegExp("^qrc:"), ":");
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281
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282 if (!QFileInfo(resourceFile).exists()) {
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283 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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284 cerr << "FileSource::init: Resource file of this name does not exist, switching to non-resource URL" << endl;
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Chris@706
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285 #endif
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286 m_url = resourceFile;
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287 m_resource = false;
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Chris@706
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288 }
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Chris@706
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289 }
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Chris@706
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290
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Chris@706
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291 if (!isRemote() && !isResource()) {
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Chris@706
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292 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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293 cerr << "FileSource::init: Not a remote URL" << endl;
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Chris@355
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294 #endif
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Chris@355
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295 bool literal = false;
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296 m_localFilename = m_url.toLocalFile();
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chris@831
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297
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Chris@342
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298 if (m_localFilename == "") {
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Chris@342
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299 // QUrl may have mishandled the scheme (e.g. in a DOS path)
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300 m_localFilename = m_rawFileOrUrl;
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chris@831
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301 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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302 cerr << "FileSource::init: Trying literal local filename \""
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Chris@843
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303 << m_localFilename << "\"" << endl;
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chris@831
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304 #endif
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305 literal = true;
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Chris@342
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306 }
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Chris@439
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307 m_localFilename = QFileInfo(m_localFilename).absoluteFilePath();
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Chris@439
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308
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Chris@355
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309 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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310 cerr << "FileSource::init: URL translates to absolute filename \""
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Chris@706
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311 << m_localFilename << "\" (with literal=" << literal << ")"
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Chris@843
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312 << endl;
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Chris@355
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313 #endif
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Chris@316
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314 m_ok = true;
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Chris@355
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315 m_lastStatus = 200;
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Chris@355
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316
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Chris@316
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317 if (!QFileInfo(m_localFilename).exists()) {
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Chris@355
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318 if (literal) {
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Chris@355
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319 m_lastStatus = 404;
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Chris@355
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320 } else {
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Chris@614
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321 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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322 cerr << "FileSource::init: Local file of this name does not exist, trying URL as a literal filename" << endl;
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Chris@614
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323 #endif
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Chris@355
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324 // Again, QUrl may have been mistreating us --
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Chris@355
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325 // e.g. dropping a part that looks like query data
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chris@831
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326 m_localFilename = m_rawFileOrUrl;
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Chris@355
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327 literal = true;
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Chris@355
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328 if (!QFileInfo(m_localFilename).exists()) {
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Chris@355
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329 m_lastStatus = 404;
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Chris@355
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330 }
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Chris@355
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331 }
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Chris@316
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332 }
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Chris@355
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333
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Chris@316
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334 m_done = true;
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Chris@316
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335 return;
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Chris@316
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336 }
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Chris@316
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337
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Chris@316
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338 if (createCacheFile()) {
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Chris@327
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339 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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340 cerr << "FileSource::init: Already have this one" << endl;
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Chris@327
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341 #endif
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Chris@316
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342 m_ok = true;
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Chris@316
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343 if (!QFileInfo(m_localFilename).exists()) {
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Chris@316
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344 m_lastStatus = 404;
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Chris@316
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345 } else {
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Chris@316
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346 m_lastStatus = 200;
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Chris@316
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347 }
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Chris@316
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348 m_done = true;
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Chris@316
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349 return;
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Chris@316
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350 }
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Chris@316
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351
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Chris@208
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352 if (m_localFilename == "") return;
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Chris@706
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353
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Chris@208
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354 m_localFile = new QFile(m_localFilename);
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Chris@208
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355 m_localFile->open(QFile::WriteOnly);
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Chris@208
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356
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Chris@706
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357 if (isResource()) {
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Chris@706
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358
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Chris@706
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359 // Absent resource file case was dealt with at the top -- this
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Chris@706
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360 // is the successful case
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Chris@706
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361
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Chris@706
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362 QString resourceFileName = m_url.toString();
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Chris@706
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363 resourceFileName.replace(QRegExp("^qrc:"), ":");
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Chris@706
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364 QFile resourceFile(resourceFileName);
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Chris@706
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365 resourceFile.open(QFile::ReadOnly);
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Chris@706
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366 QByteArray ba(resourceFile.readAll());
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Chris@706
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367
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Chris@706
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368 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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369 cerr << "Copying " << ba.size() << " bytes from resource file to cache file" << endl;
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Chris@706
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370 #endif
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Chris@706
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371
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Chris@706
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372 qint64 written = m_localFile->write(ba);
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Chris@706
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373 m_localFile->close();
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Chris@706
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374 delete m_localFile;
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Chris@706
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375 m_localFile = 0;
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Chris@706
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376
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Chris@706
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377 if (written != ba.size()) {
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Chris@706
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378 #ifdef DEBUG_FILE_SOURCE
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Chris@843
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379 cerr << "Copy failed (wrote " << written << " bytes)" << endl;
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Chris@706
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380 #endif
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Chris@706
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381 m_ok = false;
|
Chris@706
|
382 return;
|
Chris@706
|
383 } else {
|
Chris@706
|
384 m_ok = true;
|
Chris@706
|
385 m_lastStatus = 200;
|
Chris@706
|
386 m_done = true;
|
Chris@706
|
387 }
|
Chris@706
|
388
|
Chris@706
|
389 } else {
|
Chris@706
|
390
|
Chris@706
|
391 QString scheme = m_url.scheme().toLower();
|
Chris@316
|
392
|
Chris@327
|
393 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
394 cerr << "FileSource::init: Don't have local copy of \""
|
Chris@843
|
395 << m_url.toString() << "\", retrieving" << endl;
|
Chris@327
|
396 #endif
|
Chris@208
|
397
|
Chris@762
|
398 if (scheme == "http" || scheme == "https" || scheme == "ftp") {
|
Chris@762
|
399 initRemote();
|
Chris@520
|
400 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
401 cerr << "FileSource: initRemote returned" << endl;
|
Chris@520
|
402 #endif
|
Chris@706
|
403 } else {
|
Chris@706
|
404 m_remote = false;
|
Chris@706
|
405 m_ok = false;
|
Chris@706
|
406 }
|
Chris@208
|
407 }
|
Chris@208
|
408
|
Chris@208
|
409 if (m_ok) {
|
Chris@316
|
410
|
Chris@316
|
411 QMutexLocker locker(&m_mapMutex);
|
Chris@316
|
412
|
Chris@316
|
413 if (m_refCountMap[m_url] > 0) {
|
Chris@316
|
414 // someone else has been doing the same thing at the same time,
|
Chris@316
|
415 // but has got there first
|
Chris@316
|
416 cleanup();
|
Chris@316
|
417 m_refCountMap[m_url]++;
|
Chris@327
|
418 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
419 cerr << "FileSource::init: Another FileSource has got there first, abandoning our download and using theirs" << endl;
|
Chris@327
|
420 #endif
|
Chris@316
|
421 m_localFilename = m_remoteLocalMap[m_url];
|
Chris@316
|
422 m_refCounted = true;
|
Chris@316
|
423 m_ok = true;
|
Chris@316
|
424 if (!QFileInfo(m_localFilename).exists()) {
|
Chris@316
|
425 m_lastStatus = 404;
|
Chris@316
|
426 }
|
Chris@316
|
427 m_done = true;
|
Chris@316
|
428 return;
|
Chris@316
|
429 }
|
Chris@304
|
430
|
Chris@304
|
431 m_remoteLocalMap[m_url] = m_localFilename;
|
Chris@304
|
432 m_refCountMap[m_url]++;
|
Chris@316
|
433 m_refCounted = true;
|
Chris@304
|
434
|
Chris@706
|
435 if (m_reporter && !m_done) {
|
Chris@392
|
436 m_reporter->setMessage
|
Chris@392
|
437 (tr("Downloading %1...").arg(m_url.toString()));
|
Chris@392
|
438 connect(m_reporter, SIGNAL(cancelled()), this, SLOT(cancelled()));
|
Chris@357
|
439 connect(this, SIGNAL(progress(int)),
|
Chris@392
|
440 m_reporter, SLOT(setProgress(int)));
|
Chris@316
|
441 }
|
Chris@208
|
442 }
|
Chris@208
|
443 }
|
Chris@208
|
444
|
Chris@316
|
445 void
|
Chris@762
|
446 FileSource::initRemote()
|
Chris@208
|
447 {
|
Chris@316
|
448 m_ok = true;
|
Chris@316
|
449
|
Chris@762
|
450 QNetworkRequest req;
|
Chris@762
|
451 req.setUrl(m_url);
|
Chris@762
|
452
|
Chris@762
|
453 if (m_preferredContentType != "") {
|
Chris@520
|
454 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
455 cerr << "FileSource: indicating preferred content type of \""
|
Chris@843
|
456 << m_preferredContentType << "\"" << endl;
|
Chris@520
|
457 #endif
|
Chris@762
|
458 req.setRawHeader
|
Chris@762
|
459 ("Accept",
|
Chris@762
|
460 QString("%1, */*").arg(m_preferredContentType).toLatin1());
|
Chris@520
|
461 }
|
Chris@316
|
462
|
Chris@833
|
463 m_reply = nms.localData()->get(req);
|
Chris@762
|
464
|
Chris@762
|
465 connect(m_reply, SIGNAL(readyRead()),
|
Chris@762
|
466 this, SLOT(readyRead()));
|
Chris@762
|
467 connect(m_reply, SIGNAL(error(QNetworkReply::NetworkError)),
|
Chris@762
|
468 this, SLOT(replyFailed(QNetworkReply::NetworkError)));
|
Chris@762
|
469 connect(m_reply, SIGNAL(finished()),
|
Chris@762
|
470 this, SLOT(replyFinished()));
|
Chris@764
|
471 connect(m_reply, SIGNAL(metaDataChanged()),
|
Chris@764
|
472 this, SLOT(metaDataChanged()));
|
Chris@762
|
473 connect(m_reply, SIGNAL(downloadProgress(qint64, qint64)),
|
Chris@762
|
474 this, SLOT(downloadProgress(qint64, qint64)));
|
Chris@211
|
475 }
|
Chris@211
|
476
|
Chris@211
|
477 void
|
Chris@317
|
478 FileSource::cleanup()
|
Chris@211
|
479 {
|
Chris@470
|
480 if (m_done) {
|
Chris@470
|
481 delete m_localFile; // does not actually delete the file
|
Chris@470
|
482 m_localFile = 0;
|
Chris@470
|
483 }
|
Chris@211
|
484 m_done = true;
|
Chris@762
|
485 if (m_reply) {
|
Chris@762
|
486 QNetworkReply *r = m_reply;
|
Chris@762
|
487 m_reply = 0;
|
Chris@762
|
488 r->abort();
|
Chris@762
|
489 r->deleteLater();
|
Chris@214
|
490 }
|
Chris@470
|
491 if (m_localFile) {
|
Chris@470
|
492 delete m_localFile; // does not actually delete the file
|
Chris@470
|
493 m_localFile = 0;
|
Chris@470
|
494 }
|
Chris@208
|
495 }
|
Chris@208
|
496
|
Chris@208
|
497 bool
|
Chris@317
|
498 FileSource::isRemote(QString fileOrUrl)
|
Chris@304
|
499 {
|
Chris@342
|
500 // Note that a "scheme" with length 1 is probably a DOS drive letter
|
Chris@316
|
501 QString scheme = QUrl(fileOrUrl).scheme().toLower();
|
Chris@342
|
502 if (scheme == "" || scheme == "file" || scheme.length() == 1) return false;
|
Chris@342
|
503 return true;
|
Chris@304
|
504 }
|
Chris@304
|
505
|
Chris@304
|
506 bool
|
Chris@317
|
507 FileSource::canHandleScheme(QUrl url)
|
Chris@208
|
508 {
|
Chris@342
|
509 // Note that a "scheme" with length 1 is probably a DOS drive letter
|
Chris@208
|
510 QString scheme = url.scheme().toLower();
|
Chris@762
|
511 return (scheme == "http" || scheme == "https" ||
|
Chris@762
|
512 scheme == "ftp" || scheme == "file" || scheme == "qrc" ||
|
Chris@706
|
513 scheme == "" || scheme.length() == 1);
|
Chris@208
|
514 }
|
Chris@208
|
515
|
Chris@210
|
516 bool
|
Chris@317
|
517 FileSource::isAvailable()
|
Chris@210
|
518 {
|
Chris@316
|
519 waitForStatus();
|
Chris@211
|
520 bool available = true;
|
Chris@211
|
521 if (!m_ok) available = false;
|
Chris@211
|
522 else available = (m_lastStatus / 100 == 2);
|
Chris@327
|
523 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
524 cerr << "FileSource::isAvailable: " << (available ? "yes" : "no")
|
Chris@843
|
525 << endl;
|
Chris@327
|
526 #endif
|
Chris@211
|
527 return available;
|
Chris@210
|
528 }
|
Chris@210
|
529
|
Chris@208
|
530 void
|
Chris@317
|
531 FileSource::waitForStatus()
|
Chris@316
|
532 {
|
Chris@316
|
533 while (m_ok && (!m_done && m_lastStatus == 0)) {
|
Chris@843
|
534 // cerr << "waitForStatus: processing (last status " << m_lastStatus << ")" << endl;
|
Chris@392
|
535 QCoreApplication::processEvents();
|
Chris@316
|
536 }
|
Chris@316
|
537 }
|
Chris@316
|
538
|
Chris@316
|
539 void
|
Chris@317
|
540 FileSource::waitForData()
|
Chris@208
|
541 {
|
Chris@211
|
542 while (m_ok && !m_done) {
|
Chris@843
|
543 // cerr << "FileSource::waitForData: calling QApplication::processEvents" << endl;
|
Chris@392
|
544 QCoreApplication::processEvents();
|
Chris@497
|
545 usleep(10000);
|
Chris@208
|
546 }
|
Chris@208
|
547 }
|
Chris@208
|
548
|
Chris@316
|
549 void
|
Chris@317
|
550 FileSource::setLeaveLocalFile(bool leave)
|
Chris@316
|
551 {
|
Chris@316
|
552 m_leaveLocalFile = leave;
|
Chris@316
|
553 }
|
Chris@316
|
554
|
Chris@208
|
555 bool
|
Chris@317
|
556 FileSource::isOK() const
|
Chris@208
|
557 {
|
Chris@208
|
558 return m_ok;
|
Chris@208
|
559 }
|
Chris@208
|
560
|
Chris@208
|
561 bool
|
Chris@317
|
562 FileSource::isDone() const
|
Chris@208
|
563 {
|
Chris@208
|
564 return m_done;
|
Chris@208
|
565 }
|
Chris@208
|
566
|
Chris@316
|
567 bool
|
Chris@706
|
568 FileSource::isResource() const
|
Chris@706
|
569 {
|
Chris@706
|
570 return m_resource;
|
Chris@706
|
571 }
|
Chris@706
|
572
|
Chris@706
|
573 bool
|
Chris@317
|
574 FileSource::isRemote() const
|
Chris@316
|
575 {
|
Chris@316
|
576 return m_remote;
|
Chris@316
|
577 }
|
Chris@316
|
578
|
Chris@316
|
579 QString
|
Chris@317
|
580 FileSource::getLocation() const
|
Chris@316
|
581 {
|
Chris@316
|
582 return m_url.toString();
|
Chris@316
|
583 }
|
Chris@316
|
584
|
Chris@208
|
585 QString
|
Chris@317
|
586 FileSource::getLocalFilename() const
|
Chris@208
|
587 {
|
Chris@208
|
588 return m_localFilename;
|
Chris@208
|
589 }
|
Chris@208
|
590
|
Chris@208
|
591 QString
|
Chris@678
|
592 FileSource::getBasename() const
|
Chris@678
|
593 {
|
Chris@678
|
594 return QFileInfo(m_localFilename).fileName();
|
Chris@678
|
595 }
|
Chris@678
|
596
|
Chris@678
|
597 QString
|
Chris@317
|
598 FileSource::getContentType() const
|
Chris@316
|
599 {
|
Chris@316
|
600 return m_contentType;
|
Chris@316
|
601 }
|
Chris@316
|
602
|
Chris@316
|
603 QString
|
Chris@317
|
604 FileSource::getExtension() const
|
Chris@316
|
605 {
|
Chris@316
|
606 if (m_localFilename != "") {
|
Chris@316
|
607 return QFileInfo(m_localFilename).suffix().toLower();
|
Chris@316
|
608 } else {
|
Chris@316
|
609 return QFileInfo(m_url.toLocalFile()).suffix().toLower();
|
Chris@316
|
610 }
|
Chris@316
|
611 }
|
Chris@316
|
612
|
Chris@316
|
613 QString
|
Chris@317
|
614 FileSource::getErrorString() const
|
Chris@208
|
615 {
|
Chris@208
|
616 return m_errorString;
|
Chris@208
|
617 }
|
Chris@208
|
618
|
Chris@208
|
619 void
|
Chris@762
|
620 FileSource::readyRead()
|
Chris@208
|
621 {
|
Chris@762
|
622 m_localFile->write(m_reply->readAll());
|
Chris@208
|
623 }
|
Chris@208
|
624
|
Chris@208
|
625 void
|
Chris@764
|
626 FileSource::metaDataChanged()
|
Chris@210
|
627 {
|
Chris@520
|
628 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
629 cerr << "FileSource::metaDataChanged" << endl;
|
Chris@520
|
630 #endif
|
Chris@497
|
631
|
Chris@762
|
632 if (!m_reply) {
|
Chris@843
|
633 cerr << "WARNING: FileSource::metaDataChanged() called without a reply object being known to us" << endl;
|
Chris@762
|
634 return;
|
Chris@762
|
635 }
|
Chris@762
|
636
|
Chris@762
|
637 int status =
|
Chris@762
|
638 m_reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
|
Chris@762
|
639
|
Chris@762
|
640 if (status / 100 == 3) {
|
Chris@762
|
641 QString location = m_reply->header
|
Chris@762
|
642 (QNetworkRequest::LocationHeader).toString();
|
Chris@496
|
643 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
644 cerr << "FileSource::metaDataChanged: redirect to \""
|
Chris@843
|
645 << location << "\" received" << endl;
|
Chris@496
|
646 #endif
|
Chris@496
|
647 if (location != "") {
|
Chris@496
|
648 QUrl newUrl(location);
|
Chris@496
|
649 if (newUrl != m_url) {
|
Chris@497
|
650 cleanup();
|
Chris@497
|
651 deleteCacheFile();
|
Chris@529
|
652 #ifdef DEBUG_FILE_SOURCE
|
Chris@529
|
653 decCount(m_url.toString());
|
Chris@529
|
654 incCount(newUrl.toString());
|
Chris@529
|
655 #endif
|
Chris@496
|
656 m_url = newUrl;
|
Chris@497
|
657 m_localFile = 0;
|
Chris@496
|
658 m_lastStatus = 0;
|
Chris@497
|
659 m_done = false;
|
Chris@497
|
660 m_refCounted = false;
|
Chris@496
|
661 init();
|
Chris@496
|
662 return;
|
Chris@496
|
663 }
|
Chris@496
|
664 }
|
Chris@496
|
665 }
|
Chris@497
|
666
|
Chris@762
|
667 m_lastStatus = status;
|
Chris@210
|
668 if (m_lastStatus / 100 >= 4) {
|
Chris@210
|
669 m_errorString = QString("%1 %2")
|
Chris@762
|
670 .arg(status)
|
Chris@762
|
671 .arg(m_reply->attribute
|
Chris@762
|
672 (QNetworkRequest::HttpReasonPhraseAttribute).toString());
|
Chris@327
|
673 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
674 cerr << "FileSource::metaDataChanged: "
|
Chris@843
|
675 << m_errorString << endl;
|
Chris@327
|
676 #endif
|
Chris@211
|
677 } else {
|
Chris@327
|
678 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
679 cerr << "FileSource::metaDataChanged: "
|
Chris@843
|
680 << m_lastStatus << endl;
|
Chris@327
|
681 #endif
|
Chris@762
|
682 m_contentType =
|
Chris@762
|
683 m_reply->header(QNetworkRequest::ContentTypeHeader).toString();
|
Chris@325
|
684 }
|
Chris@325
|
685 emit statusAvailable();
|
Chris@210
|
686 }
|
Chris@210
|
687
|
Chris@210
|
688 void
|
Chris@762
|
689 FileSource::downloadProgress(qint64 done, qint64 total)
|
Chris@208
|
690 {
|
Chris@208
|
691 int percent = int((double(done) / double(total)) * 100.0 - 0.1);
|
Chris@208
|
692 emit progress(percent);
|
Chris@210
|
693 }
|
Chris@210
|
694
|
Chris@210
|
695 void
|
Chris@317
|
696 FileSource::cancelled()
|
Chris@210
|
697 {
|
Chris@210
|
698 m_done = true;
|
Chris@316
|
699 cleanup();
|
Chris@316
|
700
|
Chris@210
|
701 m_ok = false;
|
Chris@210
|
702 m_errorString = tr("Download cancelled");
|
Chris@208
|
703 }
|
Chris@208
|
704
|
Chris@208
|
705 void
|
Chris@762
|
706 FileSource::replyFinished()
|
Chris@208
|
707 {
|
Chris@327
|
708 emit progress(100);
|
Chris@327
|
709
|
Chris@327
|
710 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
711 cerr << "FileSource::replyFinished()" << endl;
|
Chris@327
|
712 #endif
|
Chris@211
|
713
|
Chris@211
|
714 if (m_done) return;
|
Chris@211
|
715
|
Chris@762
|
716 bool error = (m_lastStatus / 100 >= 4);
|
Chris@210
|
717
|
Chris@211
|
718 cleanup();
|
Chris@208
|
719
|
Chris@211
|
720 if (!error) {
|
Chris@208
|
721 QFileInfo fi(m_localFilename);
|
Chris@208
|
722 if (!fi.exists()) {
|
Chris@208
|
723 m_errorString = tr("Failed to create local file %1").arg(m_localFilename);
|
Chris@211
|
724 error = true;
|
Chris@208
|
725 } else if (fi.size() == 0) {
|
Chris@208
|
726 m_errorString = tr("File contains no data!");
|
Chris@211
|
727 error = true;
|
Chris@208
|
728 }
|
Chris@208
|
729 }
|
Chris@211
|
730
|
Chris@211
|
731 if (error) {
|
Chris@327
|
732 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
733 cerr << "FileSource::done: error is " << error << ", deleting cache file" << endl;
|
Chris@327
|
734 #endif
|
Chris@316
|
735 deleteCacheFile();
|
Chris@211
|
736 }
|
Chris@211
|
737
|
Chris@211
|
738 m_ok = !error;
|
Chris@520
|
739 if (m_localFile) m_localFile->flush();
|
Chris@211
|
740 m_done = true;
|
Chris@304
|
741 emit ready();
|
Chris@211
|
742 }
|
Chris@211
|
743
|
Chris@211
|
744 void
|
Chris@763
|
745 FileSource::replyFailed(QNetworkReply::NetworkError)
|
Chris@763
|
746 {
|
Chris@763
|
747 emit progress(100);
|
Chris@763
|
748 m_errorString = m_reply->errorString();
|
Chris@763
|
749 m_ok = false;
|
Chris@763
|
750 m_done = true;
|
Chris@763
|
751 cleanup();
|
Chris@763
|
752 emit ready();
|
Chris@763
|
753 }
|
Chris@763
|
754
|
Chris@763
|
755 void
|
Chris@317
|
756 FileSource::deleteCacheFile()
|
Chris@211
|
757 {
|
Chris@327
|
758 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
759 cerr << "FileSource::deleteCacheFile(\"" << m_localFilename << "\")" << endl;
|
Chris@327
|
760 #endif
|
Chris@211
|
761
|
Chris@211
|
762 cleanup();
|
Chris@211
|
763
|
Chris@316
|
764 if (m_localFilename == "") {
|
Chris@316
|
765 return;
|
Chris@316
|
766 }
|
Chris@211
|
767
|
Chris@316
|
768 if (!isRemote()) {
|
Chris@327
|
769 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
770 cerr << "not a cache file" << endl;
|
Chris@327
|
771 #endif
|
Chris@316
|
772 return;
|
Chris@316
|
773 }
|
Chris@316
|
774
|
Chris@316
|
775 if (m_refCounted) {
|
Chris@304
|
776
|
Chris@304
|
777 QMutexLocker locker(&m_mapMutex);
|
Chris@316
|
778 m_refCounted = false;
|
Chris@304
|
779
|
Chris@304
|
780 if (m_refCountMap[m_url] > 0) {
|
Chris@304
|
781 m_refCountMap[m_url]--;
|
Chris@327
|
782 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
783 cerr << "reduced ref count to " << m_refCountMap[m_url] << endl;
|
Chris@327
|
784 #endif
|
Chris@304
|
785 if (m_refCountMap[m_url] > 0) {
|
Chris@304
|
786 m_done = true;
|
Chris@304
|
787 return;
|
Chris@304
|
788 }
|
Chris@304
|
789 }
|
Chris@304
|
790 }
|
Chris@304
|
791
|
Chris@211
|
792 m_fileCreationMutex.lock();
|
Chris@211
|
793
|
Chris@211
|
794 if (!QFile(m_localFilename).remove()) {
|
Chris@469
|
795 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
796 cerr << "FileSource::deleteCacheFile: ERROR: Failed to delete file \"" << m_localFilename << "\"" << endl;
|
Chris@469
|
797 #endif
|
Chris@211
|
798 } else {
|
Chris@327
|
799 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
800 cerr << "FileSource::deleteCacheFile: Deleted cache file \"" << m_localFilename << "\"" << endl;
|
Chris@327
|
801 #endif
|
Chris@211
|
802 m_localFilename = "";
|
Chris@211
|
803 }
|
Chris@211
|
804
|
Chris@211
|
805 m_fileCreationMutex.unlock();
|
Chris@211
|
806
|
Chris@208
|
807 m_done = true;
|
Chris@208
|
808 }
|
Chris@208
|
809
|
Chris@316
|
810 bool
|
Chris@317
|
811 FileSource::createCacheFile()
|
Chris@208
|
812 {
|
Chris@316
|
813 {
|
Chris@316
|
814 QMutexLocker locker(&m_mapMutex);
|
Chris@316
|
815
|
Chris@327
|
816 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
817 cerr << "FileSource::createCacheFile: refcount is " << m_refCountMap[m_url] << endl;
|
Chris@327
|
818 #endif
|
Chris@316
|
819
|
Chris@316
|
820 if (m_refCountMap[m_url] > 0) {
|
Chris@316
|
821 m_refCountMap[m_url]++;
|
Chris@316
|
822 m_localFilename = m_remoteLocalMap[m_url];
|
Chris@327
|
823 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
824 cerr << "raised it to " << m_refCountMap[m_url] << endl;
|
Chris@327
|
825 #endif
|
Chris@316
|
826 m_refCounted = true;
|
Chris@316
|
827 return true;
|
Chris@316
|
828 }
|
Chris@316
|
829 }
|
Chris@316
|
830
|
Chris@208
|
831 QDir dir;
|
Chris@208
|
832 try {
|
Chris@208
|
833 dir = TempDirectory::getInstance()->getSubDirectoryPath("download");
|
Chris@208
|
834 } catch (DirectoryCreationFailed f) {
|
Chris@327
|
835 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
836 cerr << "FileSource::createCacheFile: ERROR: Failed to create temporary directory: " << f.what() << endl;
|
Chris@327
|
837 #endif
|
Chris@208
|
838 return "";
|
Chris@208
|
839 }
|
Chris@208
|
840
|
Chris@316
|
841 QString filepart = m_url.path().section('/', -1, -1,
|
Chris@316
|
842 QString::SectionSkipEmpty);
|
Chris@208
|
843
|
Chris@457
|
844 QString extension = "";
|
Chris@457
|
845 if (filepart.contains('.')) extension = filepart.section('.', -1);
|
Chris@457
|
846
|
Chris@208
|
847 QString base = filepart;
|
Chris@208
|
848 if (extension != "") {
|
Chris@208
|
849 base = base.left(base.length() - extension.length() - 1);
|
Chris@208
|
850 }
|
Chris@208
|
851 if (base == "") base = "remote";
|
Chris@208
|
852
|
Chris@208
|
853 QString filename;
|
Chris@208
|
854
|
Chris@208
|
855 if (extension == "") {
|
Chris@208
|
856 filename = base;
|
Chris@208
|
857 } else {
|
Chris@208
|
858 filename = QString("%1.%2").arg(base).arg(extension);
|
Chris@208
|
859 }
|
Chris@208
|
860
|
Chris@208
|
861 QString filepath(dir.filePath(filename));
|
Chris@208
|
862
|
Chris@327
|
863 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
864 cerr << "FileSource::createCacheFile: URL is \"" << m_url.toString() << "\", dir is \"" << dir.path() << "\", base \"" << base << "\", extension \"" << extension << "\", filebase \"" << filename << "\", filename \"" << filepath << "\"" << endl;
|
Chris@327
|
865 #endif
|
Chris@208
|
866
|
Chris@316
|
867 QMutexLocker fcLocker(&m_fileCreationMutex);
|
Chris@316
|
868
|
Chris@208
|
869 ++m_count;
|
Chris@208
|
870
|
Chris@208
|
871 if (QFileInfo(filepath).exists() ||
|
Chris@208
|
872 !QFile(filepath).open(QFile::WriteOnly)) {
|
Chris@208
|
873
|
Chris@327
|
874 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
875 cerr << "FileSource::createCacheFile: Failed to create local file \""
|
Chris@686
|
876 << filepath << "\" for URL \""
|
Chris@843
|
877 << m_url.toString() << "\" (or file already exists): appending suffix instead" << endl;
|
Chris@327
|
878 #endif
|
Chris@208
|
879
|
Chris@208
|
880 if (extension == "") {
|
Chris@208
|
881 filename = QString("%1_%2").arg(base).arg(m_count);
|
Chris@208
|
882 } else {
|
Chris@208
|
883 filename = QString("%1_%2.%3").arg(base).arg(m_count).arg(extension);
|
Chris@208
|
884 }
|
Chris@208
|
885 filepath = dir.filePath(filename);
|
Chris@208
|
886
|
Chris@208
|
887 if (QFileInfo(filepath).exists() ||
|
Chris@208
|
888 !QFile(filepath).open(QFile::WriteOnly)) {
|
Chris@208
|
889
|
Chris@327
|
890 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
891 cerr << "FileSource::createCacheFile: ERROR: Failed to create local file \""
|
Chris@686
|
892 << filepath << "\" for URL \""
|
Chris@843
|
893 << m_url.toString() << "\" (or file already exists)" << endl;
|
Chris@327
|
894 #endif
|
Chris@208
|
895
|
Chris@208
|
896 return "";
|
Chris@208
|
897 }
|
Chris@208
|
898 }
|
Chris@208
|
899
|
Chris@327
|
900 #ifdef DEBUG_FILE_SOURCE
|
Chris@843
|
901 cerr << "FileSource::createCacheFile: url "
|
Chris@686
|
902 << m_url.toString() << " -> local filename "
|
Chris@843
|
903 << filepath << endl;
|
Chris@327
|
904 #endif
|
Chris@316
|
905
|
Chris@316
|
906 m_localFilename = filepath;
|
Chris@208
|
907
|
Chris@316
|
908 return false;
|
Chris@208
|
909 }
|
Chris@327
|
910
|