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/>.
24 #include "zlib.h" /* crc32 */
25 //#include "OSDaB-Zip/unzip.h"
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 //int FileUtil::MIC_BUFFER_SIZE = 50;
37 FileUtil::FileUtil(QObject *parent) : QObject(parent)
39 buf = new char[READ_BUFFER];
40 unzipHelper = new UnzipHelper(this);
48 /* Throws EmuFrontException */
49 int FileUtil::scanFilePath(FilePathObject *fp, QStringList filters, DbMediaImageContainer *dbMic)
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 new 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 // TODO: only a buffer of objects should be kept here,
79 // and write to database each time the buffer is filled.
80 QList<MediaImageContainer*> containers;
81 for (int i = 0; i < list.size(); ++i)
83 QFileInfo fileInfo = list.at(i);
84 qDebug() << QString("%1 %2").arg(fileInfo.size(), 10).arg(fileInfo.absoluteFilePath());
86 //... and collect the contents of each archive
87 QMap<QString, EmuFrontObject*> files = unzipHelper->listContents(fileInfo.absoluteFilePath(), fp);
89 if (files.count() > 0)
91 // read crc32 checksum for media image container
92 quint32 crc = readCrc32(fileInfo.absoluteFilePath());
93 FilePathObject *fpo = new FilePathObject(*fp);
94 MediaImageContainer *con = new MediaImageContainer (
96 QString("%1").arg(crc, 0, 16),
99 fpo // we need a copy since MediaImageContainers are deleted and the original filepath object would get deleted also.
101 containers.append(con);
103 qDebug() << "We have " << containers.count() << " containers.";
105 if (containers.count() >= MIC_BUFFER_SIZE) {
106 qDebug() << "We have " << containers.count()
107 << " containers .. storing to db.";
108 dbMic->storeContainers(containers, fp);
109 qDeleteAll(containers);
111 qDebug() << "containers now: " << containers.count();
113 qDebug() << "We have " << containers.size() << " containers.";
116 if (containers.count() > 0) {
117 qDebug() << "Storing the rest " << containers.count() << " containers.";
118 dbMic->storeContainers(containers, fp);
119 qDeleteAll(containers);
123 qDebug() << "Done scanning files!";
127 /* Uses crc32 from zlib.h to count crc32 checksum value */
128 quint32 FileUtil::readCrc32(QString filePath)
130 // todo ... use some crc32 tool for this ... or maybe use md5 or something like that!!!
131 QFile file(filePath);
132 qDebug() << "readCrc32: " << filePath;
133 if (!file.open(QIODevice::ReadOnly)) {
134 throw new EmuFrontException(QString(tr("Failed opening file %1 for reading the checksum!")).arg(filePath));
136 quint32 crc = crc32(0L, Z_NULL, 0);
138 while((read = file.read(buf, READ_BUFFER))) {
139 crc = crc32(crc, (const Bytef*) buf, read);
143 throw new EmuFrontException(QString(tr("Failed reading crc checksum for file %1!")).arg(filePath));
144 qDebug() << QString("readCrc32, crc: %1").arg(crc, 0, 16);
148 bool FileUtil::isSupportedFile(const QString filename, const QStringList supportedFileExtensions)
150 QString ext = filename.section('.', -1);
151 return supportedFileExtensions.contains(ext, Qt::CaseInsensitive);