2 // Copyright 2010 Mikko Keinänen
4 // This file is part of EmuFront.
7 // EmuFront is free software: you can redistribute it and/or modify
8 // it under the terms of the GNU General Public License version 2 as published by
9 // the Free Software Foundation and appearing in the file gpl.txt included in the
10 // packaging of this file.
12 // EmuFront is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with EmuFront. If not, see <http://www.gnu.org/licenses/>.
23 #include <QProgressDialog>
25 #include "zlib.h" /* crc32 */
26 #include "../exceptions/emufrontexception.h"
27 #include "../dataobjects/setup.h"
28 #include "../dataobjects/mediaimage.h"
29 #include "../dataobjects/mediaimagecontainer.h"
30 #include "../dataobjects/mediatype.h"
31 #include "../dataobjects/platform.h"
32 #include "../db/dbmediaimagecontainer.h"
33 #include "unziphelper.h"
35 FileUtil::FileUtil(QObject *parent) : QObject(parent)
37 buf = new char[READ_BUFFER];
38 unzipHelper = new UnzipHelper(this);
46 /* Throws EmuFrontException */
47 int FileUtil::scanFilePath(FilePathObject *fp,
48 QStringList filters, DbMediaImageContainer *dbMic,
49 QProgressDialog *progressDialog)
52 throw EmuFrontException(tr("Setup not available with %1.").arg(fp->getName()));
54 else if(!fp->getSetup()->getPlatform()){
55 throw EmuFrontException(tr("No platform object available with %1.")
56 .arg(fp->getSetup()->getName()));
58 else if (!fp->getSetup()->getMediaType()){
59 throw EmuFrontException(tr("No media type available with %1.")
60 .arg(fp->getSetup()->getName()));
64 /*qDebug() << QString("We have a platform %1, media type %2")
65 .arg(fp->getSetup()->getPlatform()->getName())
66 .arg(fp->getSetup()->getMediaType()->getName());*/
67 QDir dir(fp->getName());
68 if (!dir.exists() || !dir.isReadable())
69 throw EmuFrontException(tr("Directory %1 doesn't exists or isn't readable!").arg(fp->getName()));
71 //qDebug() << QString("Scanning directory %1.").arg(fp->getName());
72 dir.setFilter(QDir::Files | QDir::NoSymLinks | QDir::NoDotAndDotDot | QDir::Readable);
74 if (filters.count() > 0) dir.setNameFilters(filters);
76 // we'll go through the filtered archive files...
77 QFileInfoList list = dir.entryInfoList();
78 //qDebug() << "We have " << list.count() << " files to go through.";
79 QList<MediaImageContainer*> containers;
81 progressDialog->setMinimum(0);
82 progressDialog->setMaximum(list.size());
83 for (int i = 0; i < list.size(); ++i)
85 progressDialog->setValue(i);
86 if (progressDialog->wasCanceled())
88 QFileInfo fileInfo = list.at(i);
89 //qDebug() << QString("%1 %2").arg(fileInfo.size(), 10).arg(fileInfo.absoluteFilePath());
91 //... and collect the contents of each archive
92 QMap<QString, EmuFrontObject*> files = unzipHelper->listContents(fileInfo.absoluteFilePath(), fp);
94 if (files.count() > 0)
96 // read crc32 checksum for media image container
97 quint32 crc = readCrc32(fileInfo.absoluteFilePath());
98 FilePathObject *fpo = new FilePathObject(*fp);
99 MediaImageContainer *con = new MediaImageContainer (
101 QString("%1").arg(crc, 0, 16),
104 fpo // we need a copy since MediaImageContainers are deleted and the original filepath object would get deleted also.
106 containers.append(con);
108 //qDebug() << "We have " << containers.count() << " containers.";
110 if (containers.count() >= MIC_BUFFER_SIZE) {
111 //qDebug() << "We have " << containers.count() << " containers .. storing to db.";
112 emit dbUpdateInProgress();
113 dbMic->storeContainers(containers, fp);
114 emit dbUpdateFinished();
115 qDeleteAll(containers);
117 //qDebug() << "containers now: " << containers.count();
119 //qDebug() << "We have " << containers.size() << " containers.";
120 } // files.count() > 0
122 qDebug() << "No files from container " << fileInfo.absoluteFilePath();
125 progressDialog->setValue(list.size());
126 if (containers.count() > 0) {
127 //qDebug() << "Storing the rest " << containers.count() << " containers.";
128 emit dbUpdateInProgress();
129 dbMic->storeContainers(containers, fp);
130 emit dbUpdateFinished();
131 qDeleteAll(containers);
135 } catch (EmuFrontException &e) {
136 qDebug() << "Got exception " << e.what() << ", aborting & deleting created data objects.";
137 qDeleteAll(containers);
140 //qDebug() << "Done scanning files!";
144 /* Uses crc32 from zlib.h to count crc32 checksum value */
145 /* Throws EmuFrontException */
146 quint32 FileUtil::readCrc32(QString filePath)
148 // todo ... use some crc32 tool for this ... or maybe use md5 or something like that!!!
149 QFile file(filePath);
150 //qDebug() << "readCrc32: " << filePath;
151 if (!file.open(QIODevice::ReadOnly)) {
152 throw EmuFrontException(QString(tr("Failed opening file %1 for reading the checksum!")).arg(filePath));
154 quint32 crc = crc32(0L, Z_NULL, 0);
156 while((read = file.read(buf, READ_BUFFER))) {
157 crc = crc32(crc, (const Bytef*) buf, read);
161 throw EmuFrontException(QString(tr("Failed reading crc checksum for file %1!")).arg(filePath));
162 //qDebug() << QString("readCrc32, crc: %1").arg(crc, 0, 16);
166 bool FileUtil::isSupportedFile(const QString filename, const QStringList supportedFileExtensions)
168 QString ext = filename.section('.', -1);
169 return supportedFileExtensions.contains(ext, Qt::CaseInsensitive);