mirror of
https://github.com/MultiMC/MultiMC5.git
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555 lines
14 KiB
C++
555 lines
14 KiB
C++
/*
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Copyright (C) 2005-2011 Sergey A. Tachenov
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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See COPYING file for the full LGPL text.
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Original ZIP package is copyrighted by Gilles Vollant, see
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quazip/(un)zip.h files for details, basically it's zlib license.
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**/
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#include <QtCore/QFile>
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#include <QtCore/QFlags>
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#include "quazip.h"
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/// All the internal stuff for the QuaZip class.
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/**
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\internal
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This class keeps all the private stuff for the QuaZip class so it can
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be changed without breaking binary compatibility, according to the
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Pimpl idiom.
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*/
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class QuaZipPrivate {
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friend class QuaZip;
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private:
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/// The pointer to the corresponding QuaZip instance.
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QuaZip *q;
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/// The codec for file names.
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QTextCodec *fileNameCodec;
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/// The codec for comments.
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QTextCodec *commentCodec;
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/// The archive file name.
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QString zipName;
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/// The device to access the archive.
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QIODevice *ioDevice;
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/// The global comment.
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QString comment;
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/// The open mode.
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QuaZip::Mode mode;
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union {
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/// The internal handle for UNZIP modes.
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unzFile unzFile_f;
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/// The internal handle for ZIP modes.
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zipFile zipFile_f;
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};
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/// Whether a current file is set.
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bool hasCurrentFile_f;
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/// The last error.
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int zipError;
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/// Whether \ref QuaZip::setDataDescriptorWritingEnabled() "the data descriptor writing mode" is enabled.
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bool dataDescriptorWritingEnabled;
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/// The constructor for the corresponding QuaZip constructor.
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inline QuaZipPrivate(QuaZip *q):
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q(q),
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fileNameCodec(QTextCodec::codecForLocale()),
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commentCodec(QTextCodec::codecForLocale()),
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ioDevice(NULL),
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mode(QuaZip::mdNotOpen),
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hasCurrentFile_f(false),
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zipError(UNZ_OK),
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dataDescriptorWritingEnabled(true) {}
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/// The constructor for the corresponding QuaZip constructor.
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inline QuaZipPrivate(QuaZip *q, const QString &zipName):
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q(q),
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fileNameCodec(QTextCodec::codecForLocale()),
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commentCodec(QTextCodec::codecForLocale()),
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zipName(zipName),
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ioDevice(NULL),
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mode(QuaZip::mdNotOpen),
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hasCurrentFile_f(false),
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zipError(UNZ_OK),
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dataDescriptorWritingEnabled(true) {}
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/// The constructor for the corresponding QuaZip constructor.
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inline QuaZipPrivate(QuaZip *q, QIODevice *ioDevice):
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q(q),
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fileNameCodec(QTextCodec::codecForLocale()),
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commentCodec(QTextCodec::codecForLocale()),
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ioDevice(ioDevice),
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mode(QuaZip::mdNotOpen),
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hasCurrentFile_f(false),
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zipError(UNZ_OK),
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dataDescriptorWritingEnabled(true) {}
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/// Returns either a list of file names or a list of QuaZipFileInfo.
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template<typename TFileInfo>
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bool getFileInfoList(QList<TFileInfo> *result) const;
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};
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QuaZip::QuaZip():
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p(new QuaZipPrivate(this))
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{
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}
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QuaZip::QuaZip(const QString& zipName):
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p(new QuaZipPrivate(this, zipName))
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{
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}
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QuaZip::QuaZip(QIODevice *ioDevice):
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p(new QuaZipPrivate(this, ioDevice))
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{
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}
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QuaZip::~QuaZip()
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{
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if(isOpen())
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close();
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delete p;
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}
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bool QuaZip::open(Mode mode, zlib_filefunc_def* ioApi)
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{
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p->zipError=UNZ_OK;
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if(isOpen()) {
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qWarning("QuaZip::open(): ZIP already opened");
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return false;
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}
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QIODevice *ioDevice = p->ioDevice;
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if (ioDevice == NULL) {
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if (p->zipName.isEmpty()) {
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qWarning("QuaZip::open(): set either ZIP file name or IO device first");
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return false;
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} else {
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ioDevice = new QFile(p->zipName);
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}
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}
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switch(mode) {
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case mdUnzip:
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p->unzFile_f=unzOpen2(ioDevice, ioApi);
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if(p->unzFile_f!=NULL) {
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p->mode=mode;
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p->ioDevice = ioDevice;
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return true;
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} else {
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p->zipError=UNZ_OPENERROR;
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if (!p->zipName.isEmpty())
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delete ioDevice;
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return false;
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}
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case mdCreate:
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case mdAppend:
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case mdAdd:
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p->zipFile_f=zipOpen2(ioDevice,
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mode==mdCreate?APPEND_STATUS_CREATE:
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mode==mdAppend?APPEND_STATUS_CREATEAFTER:
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APPEND_STATUS_ADDINZIP,
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NULL,
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ioApi);
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if(p->zipFile_f!=NULL) {
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p->mode=mode;
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p->ioDevice = ioDevice;
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return true;
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} else {
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p->zipError=UNZ_OPENERROR;
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if (!p->zipName.isEmpty())
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delete ioDevice;
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return false;
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}
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default:
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qWarning("QuaZip::open(): unknown mode: %d", (int)mode);
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if (!p->zipName.isEmpty())
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delete ioDevice;
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return false;
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break;
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}
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}
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void QuaZip::close()
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{
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p->zipError=UNZ_OK;
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switch(p->mode) {
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case mdNotOpen:
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qWarning("QuaZip::close(): ZIP is not open");
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return;
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case mdUnzip:
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p->zipError=unzClose(p->unzFile_f);
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break;
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case mdCreate:
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case mdAppend:
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case mdAdd:
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p->zipError=zipClose(p->zipFile_f,
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p->comment.isNull() ? NULL
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: p->commentCodec->fromUnicode(p->comment).constData());
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break;
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default:
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qWarning("QuaZip::close(): unknown mode: %d", (int)p->mode);
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return;
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}
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// opened by name, need to delete the internal IO device
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if (!p->zipName.isEmpty()) {
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delete p->ioDevice;
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p->ioDevice = NULL;
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}
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if(p->zipError==UNZ_OK)
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p->mode=mdNotOpen;
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}
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void QuaZip::setZipName(const QString& zipName)
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{
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if(isOpen()) {
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qWarning("QuaZip::setZipName(): ZIP is already open!");
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return;
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}
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p->zipName=zipName;
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p->ioDevice = NULL;
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}
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void QuaZip::setIoDevice(QIODevice *ioDevice)
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{
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if(isOpen()) {
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qWarning("QuaZip::setIoDevice(): ZIP is already open!");
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return;
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}
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p->ioDevice = ioDevice;
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p->zipName = QString();
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}
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int QuaZip::getEntriesCount()const
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{
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QuaZip *fakeThis=(QuaZip*)this; // non-const
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fakeThis->p->zipError=UNZ_OK;
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if(p->mode!=mdUnzip) {
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qWarning("QuaZip::getEntriesCount(): ZIP is not open in mdUnzip mode");
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return -1;
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}
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unz_global_info globalInfo;
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if((fakeThis->p->zipError=unzGetGlobalInfo(p->unzFile_f, &globalInfo))!=UNZ_OK)
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return p->zipError;
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return (int)globalInfo.number_entry;
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}
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QString QuaZip::getComment()const
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{
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QuaZip *fakeThis=(QuaZip*)this; // non-const
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fakeThis->p->zipError=UNZ_OK;
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if(p->mode!=mdUnzip) {
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qWarning("QuaZip::getComment(): ZIP is not open in mdUnzip mode");
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return QString();
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}
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unz_global_info globalInfo;
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QByteArray comment;
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if((fakeThis->p->zipError=unzGetGlobalInfo(p->unzFile_f, &globalInfo))!=UNZ_OK)
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return QString();
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comment.resize(globalInfo.size_comment);
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if((fakeThis->p->zipError=unzGetGlobalComment(p->unzFile_f, comment.data(), comment.size())) < 0)
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return QString();
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fakeThis->p->zipError = UNZ_OK;
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return p->commentCodec->toUnicode(comment);
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}
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bool QuaZip::setCurrentFile(const QString& fileName, CaseSensitivity cs)
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{
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p->zipError=UNZ_OK;
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if(p->mode!=mdUnzip) {
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qWarning("QuaZip::setCurrentFile(): ZIP is not open in mdUnzip mode");
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return false;
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}
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if(fileName.isEmpty()) {
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p->hasCurrentFile_f=false;
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return true;
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}
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// Unicode-aware reimplementation of the unzLocateFile function
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if(p->unzFile_f==NULL) {
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p->zipError=UNZ_PARAMERROR;
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return false;
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}
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if(fileName.length()>MAX_FILE_NAME_LENGTH) {
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p->zipError=UNZ_PARAMERROR;
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return false;
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}
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bool sens = convertCaseSensitivity(cs) == Qt::CaseSensitive;
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QString lower, current;
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if(!sens) lower=fileName.toLower();
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p->hasCurrentFile_f=false;
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for(bool more=goToFirstFile(); more; more=goToNextFile()) {
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current=getCurrentFileName();
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if(current.isEmpty()) return false;
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if(sens) {
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if(current==fileName) break;
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} else {
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if(current.toLower()==lower) break;
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}
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}
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return p->hasCurrentFile_f;
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}
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bool QuaZip::goToFirstFile()
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{
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p->zipError=UNZ_OK;
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if(p->mode!=mdUnzip) {
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qWarning("QuaZip::goToFirstFile(): ZIP is not open in mdUnzip mode");
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return false;
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}
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p->zipError=unzGoToFirstFile(p->unzFile_f);
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p->hasCurrentFile_f=p->zipError==UNZ_OK;
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return p->hasCurrentFile_f;
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}
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bool QuaZip::goToNextFile()
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{
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p->zipError=UNZ_OK;
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if(p->mode!=mdUnzip) {
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qWarning("QuaZip::goToFirstFile(): ZIP is not open in mdUnzip mode");
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return false;
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}
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p->zipError=unzGoToNextFile(p->unzFile_f);
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p->hasCurrentFile_f=p->zipError==UNZ_OK;
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if(p->zipError==UNZ_END_OF_LIST_OF_FILE)
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p->zipError=UNZ_OK;
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return p->hasCurrentFile_f;
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}
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bool QuaZip::getCurrentFileInfo(QuaZipFileInfo *info)const
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{
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QuaZip *fakeThis=(QuaZip*)this; // non-const
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fakeThis->p->zipError=UNZ_OK;
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if(p->mode!=mdUnzip) {
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qWarning("QuaZip::getCurrentFileInfo(): ZIP is not open in mdUnzip mode");
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return false;
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}
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unz_file_info info_z;
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QByteArray fileName;
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QByteArray extra;
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QByteArray comment;
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if(info==NULL) return false;
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if(!isOpen()||!hasCurrentFile()) return false;
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if((fakeThis->p->zipError=unzGetCurrentFileInfo(p->unzFile_f, &info_z, NULL, 0, NULL, 0, NULL, 0))!=UNZ_OK)
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return false;
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fileName.resize(info_z.size_filename);
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extra.resize(info_z.size_file_extra);
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comment.resize(info_z.size_file_comment);
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if((fakeThis->p->zipError=unzGetCurrentFileInfo(p->unzFile_f, NULL,
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fileName.data(), fileName.size(),
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extra.data(), extra.size(),
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comment.data(), comment.size()))!=UNZ_OK)
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return false;
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info->versionCreated=info_z.version;
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info->versionNeeded=info_z.version_needed;
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info->flags=info_z.flag;
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info->method=info_z.compression_method;
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info->crc=info_z.crc;
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info->compressedSize=info_z.compressed_size;
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info->uncompressedSize=info_z.uncompressed_size;
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info->diskNumberStart=info_z.disk_num_start;
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info->internalAttr=info_z.internal_fa;
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info->externalAttr=info_z.external_fa;
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info->name=p->fileNameCodec->toUnicode(fileName);
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info->comment=p->commentCodec->toUnicode(comment);
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info->extra=extra;
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info->dateTime=QDateTime(
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QDate(info_z.tmu_date.tm_year, info_z.tmu_date.tm_mon+1, info_z.tmu_date.tm_mday),
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QTime(info_z.tmu_date.tm_hour, info_z.tmu_date.tm_min, info_z.tmu_date.tm_sec));
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return true;
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}
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QString QuaZip::getCurrentFileName()const
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{
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QuaZip *fakeThis=(QuaZip*)this; // non-const
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fakeThis->p->zipError=UNZ_OK;
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if(p->mode!=mdUnzip) {
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qWarning("QuaZip::getCurrentFileName(): ZIP is not open in mdUnzip mode");
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return QString();
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}
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if(!isOpen()||!hasCurrentFile()) return QString();
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QByteArray fileName(MAX_FILE_NAME_LENGTH, 0);
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if((fakeThis->p->zipError=unzGetCurrentFileInfo(p->unzFile_f, NULL, fileName.data(), fileName.size(),
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NULL, 0, NULL, 0))!=UNZ_OK)
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return QString();
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return p->fileNameCodec->toUnicode(fileName.constData());
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}
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void QuaZip::setFileNameCodec(QTextCodec *fileNameCodec)
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{
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p->fileNameCodec=fileNameCodec;
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}
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void QuaZip::setFileNameCodec(const char *fileNameCodecName)
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{
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p->fileNameCodec=QTextCodec::codecForName(fileNameCodecName);
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}
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QTextCodec *QuaZip::getFileNameCodec()const
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{
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return p->fileNameCodec;
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}
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void QuaZip::setCommentCodec(QTextCodec *commentCodec)
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{
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p->commentCodec=commentCodec;
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}
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void QuaZip::setCommentCodec(const char *commentCodecName)
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{
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p->commentCodec=QTextCodec::codecForName(commentCodecName);
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}
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QTextCodec *QuaZip::getCommentCodec()const
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{
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return p->commentCodec;
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}
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QString QuaZip::getZipName() const
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{
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return p->zipName;
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}
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QIODevice *QuaZip::getIoDevice() const
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{
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if (!p->zipName.isEmpty()) // opened by name, using an internal QIODevice
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return NULL;
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return p->ioDevice;
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}
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QuaZip::Mode QuaZip::getMode()const
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{
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return p->mode;
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}
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bool QuaZip::isOpen()const
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{
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return p->mode!=mdNotOpen;
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}
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int QuaZip::getZipError() const
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{
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return p->zipError;
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}
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void QuaZip::setComment(const QString& comment)
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{
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p->comment=comment;
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}
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bool QuaZip::hasCurrentFile()const
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{
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return p->hasCurrentFile_f;
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}
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unzFile QuaZip::getUnzFile()
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{
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return p->unzFile_f;
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}
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zipFile QuaZip::getZipFile()
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{
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return p->zipFile_f;
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}
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void QuaZip::setDataDescriptorWritingEnabled(bool enabled)
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{
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p->dataDescriptorWritingEnabled = enabled;
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}
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bool QuaZip::isDataDescriptorWritingEnabled() const
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{
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return p->dataDescriptorWritingEnabled;
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}
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template<typename TFileInfo>
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TFileInfo QuaZip_getFileInfo(QuaZip *zip, bool *ok);
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template<>
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QuaZipFileInfo QuaZip_getFileInfo(QuaZip *zip, bool *ok)
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{
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QuaZipFileInfo info;
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*ok = zip->getCurrentFileInfo(&info);
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return info;
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}
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template<>
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QString QuaZip_getFileInfo(QuaZip *zip, bool *ok)
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{
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QString name = zip->getCurrentFileName();
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*ok = !name.isEmpty();
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return name;
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}
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template<typename TFileInfo>
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bool QuaZipPrivate::getFileInfoList(QList<TFileInfo> *result) const
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{
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QuaZipPrivate *fakeThis=const_cast<QuaZipPrivate*>(this);
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fakeThis->zipError=UNZ_OK;
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if (mode!=QuaZip::mdUnzip) {
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qWarning("QuaZip::getFileNameList/getFileInfoList(): "
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"ZIP is not open in mdUnzip mode");
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return false;
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}
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QString currentFile;
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if (q->hasCurrentFile()) {
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currentFile = q->getCurrentFileName();
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}
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if (q->goToFirstFile()) {
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do {
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bool ok;
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result->append(QuaZip_getFileInfo<TFileInfo>(q, &ok));
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if (!ok)
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return false;
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} while (q->goToNextFile());
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}
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if (zipError != UNZ_OK)
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return false;
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if (currentFile.isEmpty()) {
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if (!q->goToFirstFile())
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return false;
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} else {
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if (!q->setCurrentFile(currentFile))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
QStringList QuaZip::getFileNameList() const
|
|
{
|
|
QStringList list;
|
|
if (p->getFileInfoList(&list))
|
|
return list;
|
|
else
|
|
return QStringList();
|
|
}
|
|
|
|
QList<QuaZipFileInfo> QuaZip::getFileInfoList() const
|
|
{
|
|
QList<QuaZipFileInfo> list;
|
|
if (p->getFileInfoList(&list))
|
|
return list;
|
|
else
|
|
return QList<QuaZipFileInfo>();
|
|
}
|
|
|
|
Qt::CaseSensitivity QuaZip::convertCaseSensitivity(QuaZip::CaseSensitivity cs)
|
|
{
|
|
if (cs == csDefault) {
|
|
#ifdef Q_WS_WIN
|
|
return Qt::CaseInsensitive;
|
|
#else
|
|
return Qt::CaseSensitive;
|
|
#endif
|
|
} else {
|
|
return cs == csSensitive ? Qt::CaseSensitive : Qt::CaseInsensitive;
|
|
}
|
|
}
|