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-#ifndef QUA_ZIP_H
-#define QUA_ZIP_H
-
-/*
-Copyright (C) 2005-2011 Sergey A. Tachenov
-
-This program is free software; you can redistribute it and/or modify it
-under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2 of the License, or (at
-your option) any later version.
-
-This program is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
-General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License
-along with this program; if not, write to the Free Software Foundation,
-Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-See COPYING file for the full LGPL text.
-
-Original ZIP package is copyrighted by Gilles Vollant, see
-quazip/(un)zip.h files for details, basically it's zlib license.
- **/
-
-#include <QString>
-#include <QStringList>
-#include <QTextCodec>
-
-#include "zip.h"
-#include "unzip.h"
-
-#include "quazip_global.h"
-#include "quazipfileinfo.h"
-
-// just in case it will be defined in the later versions of the ZIP/UNZIP
-#ifndef UNZ_OPENERROR
-// define additional error code
-#define UNZ_OPENERROR -1000
-#endif
-
-class QuaZipPrivate;
-
-/// ZIP archive.
-/** \class QuaZip quazip.h <quazip/quazip.h>
- * This class implements basic interface to the ZIP archive. It can be
- * used to read table contents of the ZIP archive and retreiving
- * information about the files inside it.
- *
- * You can also use this class to open files inside archive by passing
- * pointer to the instance of this class to the constructor of the
- * QuaZipFile class. But see QuaZipFile::QuaZipFile(QuaZip*, QObject*)
- * for the possible pitfalls.
- *
- * This class is indended to provide interface to the ZIP subpackage of
- * the ZIP/UNZIP package as well as to the UNZIP subpackage. But
- * currently it supports only UNZIP.
- *
- * The use of this class is simple - just create instance using
- * constructor, then set ZIP archive file name using setFile() function
- * (if you did not passed the name to the constructor), then open() and
- * then use different functions to work with it! Well, if you are
- * paranoid, you may also wish to call close before destructing the
- * instance, to check for errors on close.
- *
- * You may also use getUnzFile() and getZipFile() functions to get the
- * ZIP archive handle and use it with ZIP/UNZIP package API directly.
- *
- * This class supports localized file names inside ZIP archive, but you
- * have to set up proper codec with setCodec() function. By default,
- * locale codec will be used, which is probably ok for UNIX systems, but
- * will almost certainly fail with ZIP archives created in Windows. This
- * is because Windows ZIP programs have strange habit of using DOS
- * encoding for file names in ZIP archives. For example, ZIP archive
- * with cyrillic names created in Windows will have file names in \c
- * IBM866 encoding instead of \c WINDOWS-1251. I think that calling one
- * function is not much trouble, but for true platform independency it
- * would be nice to have some mechanism for file name encoding auto
- * detection using locale information. Does anyone know a good way to do
- * it?
- **/
-class QUAZIP_EXPORT QuaZip {
- friend class QuaZipPrivate;
- public:
- /// Useful constants.
- enum Constants {
- MAX_FILE_NAME_LENGTH=256 /**< Maximum file name length. Taken from
- \c UNZ_MAXFILENAMEINZIP constant in
- unzip.c. */
- };
- /// Open mode of the ZIP file.
- enum Mode {
- mdNotOpen, ///< ZIP file is not open. This is the initial mode.
- mdUnzip, ///< ZIP file is open for reading files inside it.
- mdCreate, ///< ZIP file was created with open() call.
- mdAppend, /**< ZIP file was opened in append mode. This refers to
- * \c APPEND_STATUS_CREATEAFTER mode in ZIP/UNZIP package
- * and means that zip is appended to some existing file
- * what is useful when that file contains
- * self-extractor code. This is obviously \em not what
- * you whant to use to add files to the existing ZIP
- * archive.
- **/
- mdAdd ///< ZIP file was opened for adding files in the archive.
- };
- /// Case sensitivity for the file names.
- /** This is what you specify when accessing files in the archive.
- * Works perfectly fine with any characters thanks to Qt's great
- * unicode support. This is different from ZIP/UNZIP API, where
- * only US-ASCII characters was supported.
- **/
- enum CaseSensitivity {
- csDefault=0, ///< Default for platform. Case sensitive for UNIX, not for Windows.
- csSensitive=1, ///< Case sensitive.
- csInsensitive=2 ///< Case insensitive.
- };
- static Qt::CaseSensitivity convertCaseSensitivity(CaseSensitivity);
- private:
- QuaZipPrivate *p;
- // not (and will not be) implemented
- QuaZip(const QuaZip& that);
- // not (and will not be) implemented
- QuaZip& operator=(const QuaZip& that);
- public:
- /// Constructs QuaZip object.
- /** Call setName() before opening constructed object. */
- QuaZip();
- /// Constructs QuaZip object associated with ZIP file \a zipName.
- QuaZip(const QString& zipName);
- /// Constructs QuaZip object associated with ZIP file represented by \a ioDevice.
- /** The IO device must be seekable, otherwise an error will occur when opening. */
- QuaZip(QIODevice *ioDevice);
- /// Destroys QuaZip object.
- /** Calls close() if necessary. */
- ~QuaZip();
- /// Opens ZIP file.
- /**
- * Argument \a mode specifies open mode of the ZIP archive. See Mode
- * for details. Note that there is zipOpen2() function in the
- * ZIP/UNZIP API which accepts \a globalcomment argument, but it
- * does not use it anywhere, so this open() function does not have this
- * argument. See setComment() if you need to set global comment.
- *
- * If the ZIP file is accessed via explicitly set QIODevice, then
- * this device is opened in the necessary mode. If the device was
- * already opened by some other means, then the behaviour is defined by
- * the device implementation, but generally it is not a very good
- * idea. For example, QFile will at least issue a warning.
- *
- * \return \c true if successful, \c false otherwise.
- *
- * \note ZIP/UNZIP API open calls do not return error code - they
- * just return \c NULL indicating an error. But to make things
- * easier, quazip.h header defines additional error code \c
- * UNZ_ERROROPEN and getZipError() will return it if the open call
- * of the ZIP/UNZIP API returns \c NULL.
- *
- * Argument \a ioApi specifies IO function set for ZIP/UNZIP
- * package to use. See unzip.h, zip.h and ioapi.h for details. Note
- * that IO API for QuaZip is different from the original package.
- * The file path argument was changed to be of type \c voidpf, and
- * QuaZip passes a QIODevice pointer there. This QIODevice is either
- * set explicitly via setIoDevice() or the QuaZip(QIODevice*)
- * constructor, or it is created internally when opening the archive
- * by its file name. The default API (qioapi.cpp) just delegates
- * everything to the QIODevice API. Not only this allows to use a
- * QIODevice instead of file name, but also has a nice side effect
- * of raising the file size limit from 2G to 4G.
- *
- * In short: just forget about the \a ioApi argument and you'll be
- * fine.
- **/
- bool open(Mode mode, zlib_filefunc_def *ioApi =NULL);
- /// Closes ZIP file.
- /** Call getZipError() to determine if the close was successful. The
- * underlying QIODevice is also closed, regardless of whether it was
- * set explicitly or not. */
- void close();
- /// Sets the codec used to encode/decode file names inside archive.
- /** This is necessary to access files in the ZIP archive created
- * under Windows with non-latin characters in file names. For
- * example, file names with cyrillic letters will be in \c IBM866
- * encoding.
- **/
- void setFileNameCodec(QTextCodec *fileNameCodec);
- /// Sets the codec used to encode/decode file names inside archive.
- /** \overload
- * Equivalent to calling setFileNameCodec(QTextCodec::codecForName(codecName));
- **/
- void setFileNameCodec(const char *fileNameCodecName);
- /// Returns the codec used to encode/decode comments inside archive.
- QTextCodec* getFileNameCodec() const;
- /// Sets the codec used to encode/decode comments inside archive.
- /** This codec defaults to locale codec, which is probably ok.
- **/
- void setCommentCodec(QTextCodec *commentCodec);
- /// Sets the codec used to encode/decode comments inside archive.
- /** \overload
- * Equivalent to calling setCommentCodec(QTextCodec::codecForName(codecName));
- **/
- void setCommentCodec(const char *commentCodecName);
- /// Returns the codec used to encode/decode comments inside archive.
- QTextCodec* getCommentCodec() const;
- /// Returns the name of the ZIP file.
- /** Returns null string if no ZIP file name has been set, for
- * example when the QuaZip instance is set up to use a QIODevice
- * instead.
- * \sa setZipName(), setIoDevice(), getIoDevice()
- **/
- QString getZipName() const;
- /// Sets the name of the ZIP file.
- /** Does nothing if the ZIP file is open.
- *
- * Does not reset error code returned by getZipError().
- * \sa setIoDevice(), getIoDevice(), getZipName()
- **/
- void setZipName(const QString& zipName);
- /// Returns the device representing this ZIP file.
- /** Returns null string if no device has been set explicitly, for
- * example when opening a ZIP file by name.
- * \sa setIoDevice(), getZipName(), setZipName()
- **/
- QIODevice *getIoDevice() const;
- /// Sets the device representing the ZIP file.
- /** Does nothing if the ZIP file is open.
- *
- * Does not reset error code returned by getZipError().
- * \sa getIoDevice(), getZipName(), setZipName()
- **/
- void setIoDevice(QIODevice *ioDevice);
- /// Returns the mode in which ZIP file was opened.
- Mode getMode() const;
- /// Returns \c true if ZIP file is open, \c false otherwise.
- bool isOpen() const;
- /// Returns the error code of the last operation.
- /** Returns \c UNZ_OK if the last operation was successful.
- *
- * Error code resets to \c UNZ_OK every time you call any function
- * that accesses something inside ZIP archive, even if it is \c
- * const (like getEntriesCount()). open() and close() calls reset
- * error code too. See documentation for the specific functions for
- * details on error detection.
- **/
- int getZipError() const;
- /// Returns number of the entries in the ZIP central directory.
- /** Returns negative error code in the case of error. The same error
- * code will be returned by subsequent getZipError() call.
- **/
- int getEntriesCount() const;
- /// Returns global comment in the ZIP file.
- QString getComment() const;
- /// Sets the global comment in the ZIP file.
- /** The comment will be written to the archive on close operation.
- * QuaZip makes a distinction between a null QByteArray() comment
- * and an empty &quot;&quot; comment in the QuaZip::mdAdd mode.
- * A null comment is the default and it means &quot;don't change
- * the comment&quot;. An empty comment removes the original comment.
- *
- * \sa open()
- **/
- void setComment(const QString& comment);
- /// Sets the current file to the first file in the archive.
- /** Returns \c true on success, \c false otherwise. Call
- * getZipError() to get the error code.
- **/
- bool goToFirstFile();
- /// Sets the current file to the next file in the archive.
- /** Returns \c true on success, \c false otherwise. Call
- * getZipError() to determine if there was an error.
- *
- * Should be used only in QuaZip::mdUnzip mode.
- *
- * \note If the end of file was reached, getZipError() will return
- * \c UNZ_OK instead of \c UNZ_END_OF_LIST_OF_FILE. This is to make
- * things like this easier:
- * \code
- * for(bool more=zip.goToFirstFile(); more; more=zip.goToNextFile()) {
- * // do something
- * }
- * if(zip.getZipError()==UNZ_OK) {
- * // ok, there was no error
- * }
- * \endcode
- **/
- bool goToNextFile();
- /// Sets current file by its name.
- /** Returns \c true if successful, \c false otherwise. Argument \a
- * cs specifies case sensitivity of the file name. Call
- * getZipError() in the case of a failure to get error code.
- *
- * This is not a wrapper to unzLocateFile() function. That is
- * because I had to implement locale-specific case-insensitive
- * comparison.
- *
- * Here are the differences from the original implementation:
- *
- * - If the file was not found, error code is \c UNZ_OK, not \c
- * UNZ_END_OF_LIST_OF_FILE (see also goToNextFile()).
- * - If this function fails, it unsets the current file rather than
- * resetting it back to what it was before the call.
- *
- * If \a fileName is null string then this function unsets the
- * current file and return \c true. Note that you should close the
- * file first if it is open! See
- * QuaZipFile::QuaZipFile(QuaZip*,QObject*) for the details.
- *
- * Should be used only in QuaZip::mdUnzip mode.
- *
- * \sa setFileNameCodec(), CaseSensitivity
- **/
- bool setCurrentFile(const QString& fileName, CaseSensitivity cs =csDefault);
- /// Returns \c true if the current file has been set.
- bool hasCurrentFile() const;
- /// Retrieves information about the current file.
- /** Fills the structure pointed by \a info. Returns \c true on
- * success, \c false otherwise. In the latter case structure pointed
- * by \a info remains untouched. If there was an error,
- * getZipError() returns error code.
- *
- * Should be used only in QuaZip::mdUnzip mode.
- *
- * Does nothing and returns \c false in any of the following cases.
- * - ZIP is not open;
- * - ZIP does not have current file;
- * - \a info is \c NULL;
- *
- * In all these cases getZipError() returns \c UNZ_OK since there
- * is no ZIP/UNZIP API call.
- **/
- bool getCurrentFileInfo(QuaZipFileInfo* info)const;
- /// Returns the current file name.
- /** Equivalent to calling getCurrentFileInfo() and then getting \c
- * name field of the QuaZipFileInfo structure, but faster and more
- * convenient.
- *
- * Should be used only in QuaZip::mdUnzip mode.
- **/
- QString getCurrentFileName()const;
- /// Returns \c unzFile handle.
- /** You can use this handle to directly call UNZIP part of the
- * ZIP/UNZIP package functions (see unzip.h).
- *
- * \warning When using the handle returned by this function, please
- * keep in mind that QuaZip class is unable to detect any changes
- * you make in the ZIP file state (e. g. changing current file, or
- * closing the handle). So please do not do anything with this
- * handle that is possible to do with the functions of this class.
- * Or at least return the handle in the original state before
- * calling some another function of this class (including implicit
- * destructor calls and calls from the QuaZipFile objects that refer
- * to this QuaZip instance!). So if you have changed the current
- * file in the ZIP archive - then change it back or you may
- * experience some strange behavior or even crashes.
- **/
- unzFile getUnzFile();
- /// Returns \c zipFile handle.
- /** You can use this handle to directly call ZIP part of the
- * ZIP/UNZIP package functions (see zip.h). Warnings about the
- * getUnzFile() function also apply to this function.
- **/
- zipFile getZipFile();
- /// Changes the data descriptor writing mode.
- /**
- According to the ZIP format specification, a file inside archive
- may have a data descriptor immediately following the file
- data. This is reflected by a special flag in the local file header
- and in the central directory. By default, QuaZIP sets this flag
- and writes the data descriptor unless both method and level were
- set to 0, in which case it operates in 1.0-compatible mode and
- never writes data descriptors.
-
- By setting this flag to false, it is possible to disable data
- descriptor writing, thus increasing compatibility with archive
- readers that don't understand this feature of the ZIP file format.
-
- Setting this flag affects all the QuaZipFile instances that are
- opened after this flag is set.
-
- The data descriptor writing mode is enabled by default.
-
- \param enabled If \c true, enable local descriptor writing,
- disable it otherwise.
-
- \sa QuaZipFile::setDataDescriptorWritingEnabled()
- */
- void setDataDescriptorWritingEnabled(bool enabled);
- /// Returns the data descriptor default writing mode.
- /**
- \sa setDataDescriptorWritingEnabled()
- */
- bool isDataDescriptorWritingEnabled() const;
- /// Returns a list of files inside the archive.
- /**
- \return A list of file names or an empty list if there
- was an error or if the archive is empty (call getZipError() to
- figure out which).
- \sa getFileInfoList()
- */
- QStringList getFileNameList() const;
- /// Returns information list about all files inside the archive.
- /**
- \return A list of QuaZipFileInfo objects or an empty list if there
- was an error or if the archive is empty (call getZipError() to
- figure out which).
- \sa getFileNameList()
- */
- QList<QuaZipFileInfo> getFileInfoList() const;
-};
-
-#endif