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 "zlib.h" /* crc32 */
24 #include "OSDaB-Zip/unzip.h"
25 #include "../exceptions/emufrontexception.h"
26 #include "../dataobjects/setup.h"
27 #include "../dataobjects/mediaimage.h"
28 #include "../dataobjects/mediaimagecontainer.h"
29 #include "../dataobjects/mediatype.h"
30 #include "../dataobjects/platform.h"
31 #include "../db/dbmediaimagecontainer.h"
33 //int FileUtil::MIC_BUFFER_SIZE = 50;
35 FileUtil::FileUtil(QObject *parent) : QObject(parent)
37 buf = new char[READ_BUFFER];
45 /* Throws EmuFrontException */
46 int FileUtil::scanFilePath(FilePathObject *fp, QStringList filters, DbMediaImageContainer *dbMic)
49 throw EmuFrontException(tr("Setup not available with %1.").arg(fp->getName()));
51 else if(!fp->getSetup()->getPlatform()){
52 throw EmuFrontException(tr("No platform object available with %1.")
53 .arg(fp->getSetup()->getName()));
55 else if (!fp->getSetup()->getMediaType()){
56 throw new EmuFrontException(tr("No media type available with %1.")
57 .arg(fp->getSetup()->getName()));
60 qDebug() << QString("We have a platform %1, media type %2")
61 .arg(fp->getSetup()->getPlatform()->getName())
62 .arg(fp->getSetup()->getMediaType()->getName());
63 QDir dir(fp->getName());
64 if (!dir.exists() || !dir.isReadable())
65 throw EmuFrontException(tr("Directory %1 doesn't exists or isn't readable!").arg(fp->getName()));
67 qDebug() << QString("Scanning directory %1.").arg(fp->getName());
68 dir.setFilter(QDir::Files | QDir::NoSymLinks | QDir::NoDotAndDotDot | QDir::Readable);
70 if (filters.count() > 0) dir.setNameFilters(filters);
72 // we'll go through the filtered archive files...
73 QFileInfoList list = dir.entryInfoList();
74 // TODO: only a buffer of objects should be kept here,
75 // and write to database each time the buffer is filled.
76 QList<MediaImageContainer*> containers;
77 for (int i = 0; i < list.size(); ++i)
79 QFileInfo fileInfo = list.at(i);
80 qDebug() << QString("%1 %2").arg(fileInfo.size(), 10).arg(fileInfo.absoluteFilePath());
82 //... and collect the contents of each archive
83 QList<MediaImage*> files = listContents(fileInfo.absoluteFilePath(), fp);
85 if (files.count() > 0)
87 quint32 crc = readCrc32(fileInfo.absoluteFilePath());
88 FilePathObject *fpo = new FilePathObject(*fp);
89 MediaImageContainer *con = new MediaImageContainer
92 QString("%1").arg(crc, 0, 16),
95 fpo // we need a copy since MediaImageContainers are deleted and the original filepath object would get deleted also.
97 containers.append(con);
99 qDebug() << "We have " << containers.count() << " containers.";
101 if (containers.count() >= MIC_BUFFER_SIZE) {
102 qDebug() << "We have " << containers.count()
103 << " containers .. storing to db.";
104 dbMic->storeContainers(containers, fp);
105 qDeleteAll(containers);
107 qDebug() << "containers now: " << containers.count();
109 qDebug() << "We have " << containers.size() << " containers.";
112 if (containers.count() > 0) {
113 qDebug() << "Storing the rest " << containers.count() << " containers.";
114 dbMic->storeContainers(containers, fp);
115 qDeleteAll(containers);
119 qDebug() << "Done scanning files!";
123 /* Uses crc32 from zlib.h to count crc32 checksum value */
124 quint32 FileUtil::readCrc32(QString filePath)
126 QFile file(filePath);
127 qDebug() << "readCrc32: " << filePath;
128 if (!file.open(QIODevice::ReadOnly)) {
129 throw new EmuFrontException(QString(tr("Failed opening file %1 for reading the checksum!")).arg(filePath));
131 quint32 crc = crc32(0L, Z_NULL, 0);
133 while((read = file.read(buf, READ_BUFFER))) {
134 crc = crc32(crc, (const Bytef*) buf, read);
138 throw new EmuFrontException(QString(tr("Failed reading crc checksum for file %1!")).arg(filePath));
139 qDebug() << QString("readCrc32, crc: %1").arg(crc, 0, 16);
143 QList<MediaImage*> FileUtil::listContents(const QString filePath, const FilePathObject *fp)
147 UnZip::ErrorCode ec = uz.openArchive(filePath);
149 throw EmuFrontException(tr("Error while opening zip-file %1, error code %2").arg(filePath).arg(ec));
151 if (!fp->getSetup()){
152 throw EmuFrontException(tr("Setup not available with %1.").arg(fp->getName()));
155 Setup *sup = fp->getSetup();
156 QList<UnZip::ZipEntry> list = uz.entryList();
157 QList<MediaImage*> fileList;
158 foreach(UnZip::ZipEntry entry, list)
160 qDebug() << "Zip entry " << entry.filename;
161 if (isSupportedFile(entry.filename, sup->getSupportedFileTypeExtensions()))
163 QString checksum = QString("%1").arg(entry.crc32, 0, 16);
164 qDebug() << "Checksum " << checksum;
165 MediaImage *effo = new MediaImage(entry.filename,
166 checksum, entry.uncompressedSize);
171 qDebug() << "File list has " << fileList.size() << " entries.";
176 bool FileUtil::isSupportedFile(const QString filename, const QStringList supportedFileExtensions)
178 QString ext = filename.section('.', -1);
179 return supportedFileExtensions.contains(ext, Qt::CaseInsensitive);