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/* |
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Copyright (C) 2005-2014 Sergey A. Tachenov |
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|
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This file is part of QuaZIP. |
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|
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QuaZIP is free software: you can redistribute it and/or modify |
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it under the terms of the GNU Lesser General Public License as published by |
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the Free Software Foundation, either version 2.1 of the License, or |
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(at your option) any later version. |
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|
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QuaZIP is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU Lesser General Public License for more details. |
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|
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You should have received a copy of the GNU Lesser General Public License |
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along with QuaZIP. If not, see <http://www.gnu.org/licenses/>. |
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|
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See COPYING file for the full LGPL text. |
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|
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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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|
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#include "quazipfile.h" |
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|
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using namespace std; |
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|
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/// The implementation class for QuaZip. |
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/** |
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\internal |
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|
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This class contains all the private stuff for the QuaZipFile class, thus |
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allowing to preserve binary compatibility between releases, the |
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technique known as the Pimpl (private implementation) idiom. |
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*/ |
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class QuaZipFilePrivate { |
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friend class QuaZipFile; |
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private: |
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Q_DISABLE_COPY(QuaZipFilePrivate) |
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/// The pointer to the associated QuaZipFile instance. |
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QuaZipFile *q; |
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/// The QuaZip object to work with. |
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QuaZip *zip; |
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/// The file name. |
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QString fileName; |
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/// Case sensitivity mode. |
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QuaZip::CaseSensitivity caseSensitivity; |
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/// Whether this file is opened in the raw mode. |
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bool raw; |
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/// Write position to keep track of. |
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/** |
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QIODevice::pos() is broken for non-seekable devices, so we need |
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our own position. |
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*/ |
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qint64 writePos; |
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/// Uncompressed size to write along with a raw file. |
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quint64 uncompressedSize; |
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/// CRC to write along with a raw file. |
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quint32 crc; |
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/// Whether \ref zip points to an internal QuaZip instance. |
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/** |
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This is true if the archive was opened by name, rather than by |
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supplying an existing QuaZip instance. |
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*/ |
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bool internal; |
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/// The last error. |
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int zipError; |
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/// Resets \ref zipError. |
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inline void resetZipError() const {setZipError(UNZ_OK);} |
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/// Sets the zip error. |
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/** |
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This function is marked as const although it changes one field. |
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This allows to call it from const functions that don't change |
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anything by themselves. |
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*/ |
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void setZipError(int zipError) const; |
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/// The constructor for the corresponding QuaZipFile constructor. |
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inline QuaZipFilePrivate(QuaZipFile *q): |
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q(q), |
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zip(NULL), |
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caseSensitivity(QuaZip::csDefault), |
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raw(false), |
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writePos(0), |
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uncompressedSize(0), |
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crc(0), |
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internal(true), |
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zipError(UNZ_OK) {} |
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/// The constructor for the corresponding QuaZipFile constructor. |
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inline QuaZipFilePrivate(QuaZipFile *q, const QString &zipName): |
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q(q), |
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caseSensitivity(QuaZip::csDefault), |
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raw(false), |
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writePos(0), |
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uncompressedSize(0), |
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crc(0), |
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internal(true), |
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zipError(UNZ_OK) |
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{ |
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zip=new QuaZip(zipName); |
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} |
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/// The constructor for the corresponding QuaZipFile constructor. |
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inline QuaZipFilePrivate(QuaZipFile *q, const QString &zipName, const QString &fileName, |
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QuaZip::CaseSensitivity cs): |
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q(q), |
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raw(false), |
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writePos(0), |
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uncompressedSize(0), |
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crc(0), |
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internal(true), |
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zipError(UNZ_OK) |
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{ |
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zip=new QuaZip(zipName); |
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this->fileName=fileName; |
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if (this->fileName.startsWith('/')) |
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this->fileName = this->fileName.mid(1); |
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this->caseSensitivity=cs; |
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} |
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/// The constructor for the QuaZipFile constructor accepting a file name. |
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inline QuaZipFilePrivate(QuaZipFile *q, QuaZip *zip): |
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q(q), |
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zip(zip), |
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raw(false), |
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writePos(0), |
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uncompressedSize(0), |
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crc(0), |
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internal(false), |
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zipError(UNZ_OK) {} |
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/// The destructor. |
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inline ~QuaZipFilePrivate() |
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{ |
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if (internal) |
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delete zip; |
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} |
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}; |
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|
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QuaZipFile::QuaZipFile(): |
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p(new QuaZipFilePrivate(this)) |
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{ |
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} |
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|
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QuaZipFile::QuaZipFile(QObject *parent): |
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QIODevice(parent), |
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p(new QuaZipFilePrivate(this)) |
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{ |
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} |
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|
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QuaZipFile::QuaZipFile(const QString& zipName, QObject *parent): |
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QIODevice(parent), |
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p(new QuaZipFilePrivate(this, zipName)) |
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{ |
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} |
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|
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QuaZipFile::QuaZipFile(const QString& zipName, const QString& fileName, |
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QuaZip::CaseSensitivity cs, QObject *parent): |
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QIODevice(parent), |
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p(new QuaZipFilePrivate(this, zipName, fileName, cs)) |
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{ |
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} |
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|
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QuaZipFile::QuaZipFile(QuaZip *zip, QObject *parent): |
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QIODevice(parent), |
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p(new QuaZipFilePrivate(this, zip)) |
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{ |
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} |
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|
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QuaZipFile::~QuaZipFile() |
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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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|
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QString QuaZipFile::getZipName() const |
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{ |
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return p->zip==NULL ? QString() : p->zip->getZipName(); |
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} |
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|
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QuaZip *QuaZipFile::getZip() const |
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{ |
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return p->internal ? NULL : p->zip; |
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} |
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|
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QString QuaZipFile::getActualFileName()const |
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{ |
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p->setZipError(UNZ_OK); |
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if (p->zip == NULL || (openMode() & WriteOnly)) |
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return QString(); |
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QString name=p->zip->getCurrentFileName(); |
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if(name.isNull()) |
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p->setZipError(p->zip->getZipError()); |
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return name; |
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} |
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|
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void QuaZipFile::setZipName(const QString& zipName) |
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{ |
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if(isOpen()) { |
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qWarning("QuaZipFile::setZipName(): file is already open - can not set ZIP name"); |
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return; |
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} |
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if(p->zip!=NULL && p->internal) |
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delete p->zip; |
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p->zip=new QuaZip(zipName); |
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p->internal=true; |
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} |
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|
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void QuaZipFile::setZip(QuaZip *zip) |
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{ |
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if(isOpen()) { |
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qWarning("QuaZipFile::setZip(): file is already open - can not set ZIP"); |
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return; |
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} |
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if(p->zip!=NULL && p->internal) |
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delete p->zip; |
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p->zip=zip; |
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p->fileName=QString(); |
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p->internal=false; |
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} |
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|
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void QuaZipFile::setFileName(const QString& fileName, QuaZip::CaseSensitivity cs) |
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{ |
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if(p->zip==NULL) { |
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qWarning("QuaZipFile::setFileName(): call setZipName() first"); |
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return; |
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} |
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if(!p->internal) { |
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qWarning("QuaZipFile::setFileName(): should not be used when not using internal QuaZip"); |
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return; |
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} |
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if(isOpen()) { |
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qWarning("QuaZipFile::setFileName(): can not set file name for already opened file"); |
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return; |
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} |
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p->fileName=fileName; |
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if (p->fileName.startsWith('/')) |
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p->fileName = p->fileName.mid(1); |
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p->caseSensitivity=cs; |
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} |
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|
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void QuaZipFilePrivate::setZipError(int zipError) const |
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{ |
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QuaZipFilePrivate *fakeThis = const_cast<QuaZipFilePrivate*>(this); // non-const |
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fakeThis->zipError=zipError; |
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if(zipError==UNZ_OK) |
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q->setErrorString(QString()); |
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else |
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q->setErrorString(QuaZipFile::tr("ZIP/UNZIP API error %1").arg(zipError)); |
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} |
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|
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bool QuaZipFile::open(OpenMode mode) |
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{ |
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return open(mode, NULL); |
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} |
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|
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bool QuaZipFile::open(OpenMode mode, int *method, int *level, bool raw, const char *password) |
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{ |
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p->resetZipError(); |
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if(isOpen()) { |
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qWarning("QuaZipFile::open(): already opened"); |
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return false; |
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} |
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if(mode&Unbuffered) { |
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qWarning("QuaZipFile::open(): Unbuffered mode is not supported"); |
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return false; |
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} |
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if((mode&ReadOnly)&&!(mode&WriteOnly)) { |
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if(p->internal) { |
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if(!p->zip->open(QuaZip::mdUnzip)) { |
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p->setZipError(p->zip->getZipError()); |
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return false; |
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} |
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if(!p->zip->setCurrentFile(p->fileName, p->caseSensitivity)) { |
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p->setZipError(p->zip->getZipError()); |
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p->zip->close(); |
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return false; |
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} |
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} else { |
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if(p->zip==NULL) { |
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qWarning("QuaZipFile::open(): zip is NULL"); |
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return false; |
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} |
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if(p->zip->getMode()!=QuaZip::mdUnzip) { |
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qWarning("QuaZipFile::open(): file open mode %d incompatible with ZIP open mode %d", |
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(int)mode, (int)p->zip->getMode()); |
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return false; |
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} |
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if(!p->zip->hasCurrentFile()) { |
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qWarning("QuaZipFile::open(): zip does not have current file"); |
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return false; |
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} |
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} |
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p->setZipError(unzOpenCurrentFile3(p->zip->getUnzFile(), method, level, (int)raw, password)); |
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if(p->zipError==UNZ_OK) { |
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setOpenMode(mode); |
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p->raw=raw; |
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return true; |
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} else |
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return false; |
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} |
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qWarning("QuaZipFile::open(): open mode %d not supported by this function", (int)mode); |
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return false; |
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} |
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|
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bool QuaZipFile::open(OpenMode mode, const QuaZipNewInfo& info, |
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const char *password, quint32 crc, |
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int method, int level, bool raw, |
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int windowBits, int memLevel, int strategy) |
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{ |
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zip_fileinfo info_z; |
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p->resetZipError(); |
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if(isOpen()) { |
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qWarning("QuaZipFile::open(): already opened"); |
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return false; |
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} |
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if((mode&WriteOnly)&&!(mode&ReadOnly)) { |
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if(p->internal) { |
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qWarning("QuaZipFile::open(): write mode is incompatible with internal QuaZip approach"); |
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return false; |
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} |
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if(p->zip==NULL) { |
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qWarning("QuaZipFile::open(): zip is NULL"); |
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return false; |
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} |
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if(p->zip->getMode()!=QuaZip::mdCreate&&p->zip->getMode()!=QuaZip::mdAppend&&p->zip->getMode()!=QuaZip::mdAdd) { |
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qWarning("QuaZipFile::open(): file open mode %d incompatible with ZIP open mode %d", |
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(int)mode, (int)p->zip->getMode()); |
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return false; |
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} |
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info_z.tmz_date.tm_year=info.dateTime.date().year(); |
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info_z.tmz_date.tm_mon=info.dateTime.date().month() - 1; |
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info_z.tmz_date.tm_mday=info.dateTime.date().day(); |
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info_z.tmz_date.tm_hour=info.dateTime.time().hour(); |
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info_z.tmz_date.tm_min=info.dateTime.time().minute(); |
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info_z.tmz_date.tm_sec=info.dateTime.time().second(); |
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info_z.dosDate = 0; |
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info_z.internal_fa=(uLong)info.internalAttr; |
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info_z.external_fa=(uLong)info.externalAttr; |
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if (p->zip->isDataDescriptorWritingEnabled()) |
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zipSetFlags(p->zip->getZipFile(), ZIP_WRITE_DATA_DESCRIPTOR); |
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else |
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zipClearFlags(p->zip->getZipFile(), ZIP_WRITE_DATA_DESCRIPTOR); |
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p->setZipError(zipOpenNewFileInZip3_64(p->zip->getZipFile(), |
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p->zip->getFileNameCodec()->fromUnicode(info.name).constData(), &info_z, |
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info.extraLocal.constData(), info.extraLocal.length(), |
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info.extraGlobal.constData(), info.extraGlobal.length(), |
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p->zip->getCommentCodec()->fromUnicode(info.comment).constData(), |
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method, level, (int)raw, |
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windowBits, memLevel, strategy, |
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password, (uLong)crc, p->zip->isZip64Enabled())); |
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if(p->zipError==UNZ_OK) { |
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p->writePos=0; |
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setOpenMode(mode); |
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p->raw=raw; |
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if(raw) { |
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p->crc=crc; |
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p->uncompressedSize=info.uncompressedSize; |
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} |
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return true; |
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} else |
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return false; |
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} |
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qWarning("QuaZipFile::open(): open mode %d not supported by this function", (int)mode); |
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return false; |
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} |
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|
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bool QuaZipFile::isSequential()const |
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{ |
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return true; |
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} |
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|
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qint64 QuaZipFile::pos()const |
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{ |
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if(p->zip==NULL) { |
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qWarning("QuaZipFile::pos(): call setZipName() or setZip() first"); |
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return -1; |
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} |
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if(!isOpen()) { |
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qWarning("QuaZipFile::pos(): file is not open"); |
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return -1; |
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} |
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if(openMode()&ReadOnly) |
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// QIODevice::pos() is broken for sequential devices, |
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// but thankfully bytesAvailable() returns the number of |
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// bytes buffered, so we know how far ahead we are. |
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return unztell(p->zip->getUnzFile()) - QIODevice::bytesAvailable(); |
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else |
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return p->writePos; |
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} |
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|
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bool QuaZipFile::atEnd()const |
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{ |
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if(p->zip==NULL) { |
| 393 |
qWarning("QuaZipFile::atEnd(): call setZipName() or setZip() first"); |
| 394 |
return false; |
| 395 |
} |
| 396 |
if(!isOpen()) { |
| 397 |
qWarning("QuaZipFile::atEnd(): file is not open"); |
| 398 |
return false; |
| 399 |
} |
| 400 |
if(openMode()&ReadOnly) |
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// the same problem as with pos() |
| 402 |
return QIODevice::bytesAvailable() == 0 |
| 403 |
&& unzeof(p->zip->getUnzFile())==1; |
| 404 |
else |
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return true; |
| 406 |
} |
| 407 |
|
| 408 |
qint64 QuaZipFile::size()const |
| 409 |
{ |
| 410 |
if(!isOpen()) { |
| 411 |
qWarning("QuaZipFile::atEnd(): file is not open"); |
| 412 |
return -1; |
| 413 |
} |
| 414 |
if(openMode()&ReadOnly) |
| 415 |
return p->raw?csize():usize(); |
| 416 |
else |
| 417 |
return p->writePos; |
| 418 |
} |
| 419 |
|
| 420 |
qint64 QuaZipFile::csize()const |
| 421 |
{ |
| 422 |
unz_file_info64 info_z; |
| 423 |
p->setZipError(UNZ_OK); |
| 424 |
if(p->zip==NULL||p->zip->getMode()!=QuaZip::mdUnzip) return -1; |
| 425 |
p->setZipError(unzGetCurrentFileInfo64(p->zip->getUnzFile(), &info_z, NULL, 0, NULL, 0, NULL, 0)); |
| 426 |
if(p->zipError!=UNZ_OK) |
| 427 |
return -1; |
| 428 |
return info_z.compressed_size; |
| 429 |
} |
| 430 |
|
| 431 |
qint64 QuaZipFile::usize()const |
| 432 |
{ |
| 433 |
unz_file_info64 info_z; |
| 434 |
p->setZipError(UNZ_OK); |
| 435 |
if(p->zip==NULL||p->zip->getMode()!=QuaZip::mdUnzip) return -1; |
| 436 |
p->setZipError(unzGetCurrentFileInfo64(p->zip->getUnzFile(), &info_z, NULL, 0, NULL, 0, NULL, 0)); |
| 437 |
if(p->zipError!=UNZ_OK) |
| 438 |
return -1; |
| 439 |
return info_z.uncompressed_size; |
| 440 |
} |
| 441 |
|
| 442 |
bool QuaZipFile::getFileInfo(QuaZipFileInfo *info) |
| 443 |
{ |
| 444 |
QuaZipFileInfo64 info64; |
| 445 |
if (getFileInfo(&info64)) { |
| 446 |
info64.toQuaZipFileInfo(*info); |
| 447 |
return true; |
| 448 |
} else { |
| 449 |
return false; |
| 450 |
} |
| 451 |
} |
| 452 |
|
| 453 |
bool QuaZipFile::getFileInfo(QuaZipFileInfo64 *info) |
| 454 |
{ |
| 455 |
if(p->zip==NULL||p->zip->getMode()!=QuaZip::mdUnzip) return false; |
| 456 |
p->zip->getCurrentFileInfo(info); |
| 457 |
p->setZipError(p->zip->getZipError()); |
| 458 |
return p->zipError==UNZ_OK; |
| 459 |
} |
| 460 |
|
| 461 |
void QuaZipFile::close() |
| 462 |
{ |
| 463 |
p->resetZipError(); |
| 464 |
if(p->zip==NULL||!p->zip->isOpen()) return; |
| 465 |
if(!isOpen()) { |
| 466 |
qWarning("QuaZipFile::close(): file isn't open"); |
| 467 |
return; |
| 468 |
} |
| 469 |
if(openMode()&ReadOnly) |
| 470 |
p->setZipError(unzCloseCurrentFile(p->zip->getUnzFile())); |
| 471 |
else if(openMode()&WriteOnly) |
| 472 |
if(isRaw()) p->setZipError(zipCloseFileInZipRaw64(p->zip->getZipFile(), p->uncompressedSize, p->crc)); |
| 473 |
else p->setZipError(zipCloseFileInZip(p->zip->getZipFile())); |
| 474 |
else { |
| 475 |
qWarning("Wrong open mode: %d", (int)openMode()); |
| 476 |
return; |
| 477 |
} |
| 478 |
if(p->zipError==UNZ_OK) setOpenMode(QIODevice::NotOpen); |
| 479 |
else return; |
| 480 |
if(p->internal) { |
| 481 |
p->zip->close(); |
| 482 |
p->setZipError(p->zip->getZipError()); |
| 483 |
} |
| 484 |
} |
| 485 |
|
| 486 |
qint64 QuaZipFile::readData(char *data, qint64 maxSize) |
| 487 |
{ |
| 488 |
p->setZipError(UNZ_OK); |
| 489 |
qint64 bytesRead=unzReadCurrentFile(p->zip->getUnzFile(), data, (unsigned)maxSize); |
| 490 |
if (bytesRead < 0) { |
| 491 |
p->setZipError((int) bytesRead); |
| 492 |
return -1; |
| 493 |
} |
| 494 |
return bytesRead; |
| 495 |
} |
| 496 |
|
| 497 |
qint64 QuaZipFile::writeData(const char* data, qint64 maxSize) |
| 498 |
{ |
| 499 |
p->setZipError(ZIP_OK); |
| 500 |
p->setZipError(zipWriteInFileInZip(p->zip->getZipFile(), data, (uint)maxSize)); |
| 501 |
if(p->zipError!=ZIP_OK) return -1; |
| 502 |
else { |
| 503 |
p->writePos+=maxSize; |
| 504 |
return maxSize; |
| 505 |
} |
| 506 |
} |
| 507 |
|
| 508 |
QString QuaZipFile::getFileName() const |
| 509 |
{ |
| 510 |
return p->fileName; |
| 511 |
} |
| 512 |
|
| 513 |
QuaZip::CaseSensitivity QuaZipFile::getCaseSensitivity() const |
| 514 |
{ |
| 515 |
return p->caseSensitivity; |
| 516 |
} |
| 517 |
|
| 518 |
bool QuaZipFile::isRaw() const |
| 519 |
{ |
| 520 |
return p->raw; |
| 521 |
} |
| 522 |
|
| 523 |
int QuaZipFile::getZipError() const |
| 524 |
{ |
| 525 |
return p->zipError; |
| 526 |
} |
| 527 |
|
| 528 |
qint64 QuaZipFile::bytesAvailable() const |
| 529 |
{ |
| 530 |
return size() - pos(); |
| 531 |
} |
