From 6277b9f46fab14f30b247868174a688a5e81218a Mon Sep 17 00:00:00 2001 From: 0xFEEDC0DE64 <0xFEEDC0DE64@gmail.com> Date: Sat, 15 Sep 2018 20:14:23 +0200 Subject: [PATCH] Imported existing sources --- JlCompress.cpp | 443 +++++++++ JlCompress.h | 197 ++++ Quazip.pro | 50 ++ crypt.h | 135 +++ ioapi.h | 207 +++++ qioapi.cpp | 363 ++++++++ quaadler32.cpp | 53 ++ quaadler32.h | 54 ++ quachecksum32.h | 78 ++ quacrc32.cpp | 52 ++ quacrc32.h | 50 ++ quagzipfile.cpp | 172 ++++ quagzipfile.h | 108 +++ quaziodevice.cpp | 339 +++++++ quaziodevice.h | 102 +++ quazip.cpp | 795 ++++++++++++++++ quazip.h | 571 ++++++++++++ quazip_global.h | 59 ++ quazipdir.cpp | 567 ++++++++++++ quazipdir.h | 223 +++++ quazipfile.cpp | 531 +++++++++++ quazipfile.h | 456 ++++++++++ quazipfileinfo.cpp | 176 ++++ quazipfileinfo.h | 178 ++++ quazipnewinfo.cpp | 292 ++++++ quazipnewinfo.h | 207 +++++ unzip.c | 2147 ++++++++++++++++++++++++++++++++++++++++++++ unzip.h | 458 ++++++++++ zip.c | 2097 ++++++++++++++++++++++++++++++++++++++++++ zip.h | 390 ++++++++ 30 files changed, 11550 insertions(+) create mode 100644 JlCompress.cpp create mode 100644 JlCompress.h create mode 100644 Quazip.pro create mode 100644 crypt.h create mode 100644 ioapi.h create mode 100644 qioapi.cpp create mode 100644 quaadler32.cpp create mode 100644 quaadler32.h create mode 100644 quachecksum32.h create mode 100644 quacrc32.cpp create mode 100644 quacrc32.h create mode 100644 quagzipfile.cpp create mode 100644 quagzipfile.h create mode 100644 quaziodevice.cpp create mode 100644 quaziodevice.h create mode 100644 quazip.cpp create mode 100644 quazip.h create mode 100644 quazip_global.h create mode 100644 quazipdir.cpp create mode 100644 quazipdir.h create mode 100644 quazipfile.cpp create mode 100644 quazipfile.h create mode 100644 quazipfileinfo.cpp create mode 100644 quazipfileinfo.h create mode 100644 quazipnewinfo.cpp create mode 100644 quazipnewinfo.h create mode 100644 unzip.c create mode 100644 unzip.h create mode 100644 zip.c create mode 100644 zip.h diff --git a/JlCompress.cpp b/JlCompress.cpp new file mode 100644 index 0000000..a62af80 --- /dev/null +++ b/JlCompress.cpp @@ -0,0 +1,443 @@ +/* +Copyright (C) 2010 Roberto Pompermaier +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include "JlCompress.h" +#include + +static bool copyData(QIODevice &inFile, QIODevice &outFile) +{ + while (!inFile.atEnd()) { + char buf[4096]; + qint64 readLen = inFile.read(buf, 4096); + if (readLen <= 0) + return false; + if (outFile.write(buf, readLen) != readLen) + return false; + } + return true; +} + +bool JlCompress::compressFile(QuaZip* zip, QString fileName, QString fileDest) { + // zip: oggetto dove aggiungere il file + // fileName: nome del file reale + // fileDest: nome del file all'interno del file compresso + + // Controllo l'apertura dello zip + if (!zip) return false; + if (zip->getMode()!=QuaZip::mdCreate && + zip->getMode()!=QuaZip::mdAppend && + zip->getMode()!=QuaZip::mdAdd) return false; + + // Apro il file originale + QFile inFile; + inFile.setFileName(fileName); + if(!inFile.open(QIODevice::ReadOnly)) return false; + + // Apro il file risulato + QuaZipFile outFile(zip); + if(!outFile.open(QIODevice::WriteOnly, QuaZipNewInfo(fileDest, inFile.fileName()))) return false; + + // Copio i dati + if (!copyData(inFile, outFile) || outFile.getZipError()!=UNZ_OK) { + return false; + } + + // Chiudo i file + outFile.close(); + if (outFile.getZipError()!=UNZ_OK) return false; + inFile.close(); + + return true; +} + +bool JlCompress::compressSubDir(QuaZip* zip, QString dir, QString origDir, bool recursive, QDir::Filters filters) { + // zip: oggetto dove aggiungere il file + // dir: cartella reale corrente + // origDir: cartella reale originale + // (path(dir)-path(origDir)) = path interno all'oggetto zip + + // Controllo l'apertura dello zip + if (!zip) return false; + if (zip->getMode()!=QuaZip::mdCreate && + zip->getMode()!=QuaZip::mdAppend && + zip->getMode()!=QuaZip::mdAdd) return false; + + // Controllo la cartella + QDir directory(dir); + if (!directory.exists()) return false; + + QDir origDirectory(origDir); + if (dir != origDir) { + QuaZipFile dirZipFile(zip); + if (!dirZipFile.open(QIODevice::WriteOnly, + QuaZipNewInfo(origDirectory.relativeFilePath(dir) + "/", dir), 0, 0, 0)) { + return false; + } + dirZipFile.close(); + } + + + // Se comprimo anche le sotto cartelle + if (recursive) { + // Per ogni sotto cartella + QFileInfoList files = directory.entryInfoList(QDir::AllDirs|QDir::NoDotAndDotDot|filters); + Q_FOREACH (QFileInfo file, files) { + // Comprimo la sotto cartella + if(!compressSubDir(zip,file.absoluteFilePath(),origDir,recursive,filters)) return false; + } + } + + // Per ogni file nella cartella + QFileInfoList files = directory.entryInfoList(QDir::Files|filters); + Q_FOREACH (QFileInfo file, files) { + // Se non e un file o e il file compresso che sto creando + if(!file.isFile()||file.absoluteFilePath()==zip->getZipName()) continue; + + // Creo il nome relativo da usare all'interno del file compresso + QString filename = origDirectory.relativeFilePath(file.absoluteFilePath()); + + // Comprimo il file + if (!compressFile(zip,file.absoluteFilePath(),filename)) return false; + } + + return true; +} + +bool JlCompress::extractFile(QuaZip* zip, QString fileName, QString fileDest) { + // zip: oggetto dove aggiungere il file + // filename: nome del file reale + // fileincompress: nome del file all'interno del file compresso + + // Controllo l'apertura dello zip + if (!zip) return false; + if (zip->getMode()!=QuaZip::mdUnzip) return false; + + // Apro il file compresso + if (!fileName.isEmpty()) + zip->setCurrentFile(fileName); + QuaZipFile inFile(zip); + if(!inFile.open(QIODevice::ReadOnly) || inFile.getZipError()!=UNZ_OK) return false; + + // Controllo esistenza cartella file risultato + QDir curDir; + if (fileDest.endsWith('/')) { + if (!curDir.mkpath(fileDest)) { + return false; + } + } else { + if (!curDir.mkpath(QFileInfo(fileDest).absolutePath())) { + return false; + } + } + + QuaZipFileInfo64 info; + if (!zip->getCurrentFileInfo(&info)) + return false; + + QFile::Permissions srcPerm = info.getPermissions(); + if (fileDest.endsWith('/') && QFileInfo(fileDest).isDir()) { + if (srcPerm != 0) { + QFile(fileDest).setPermissions(srcPerm); + } + return true; + } + + // Apro il file risultato + QFile outFile; + outFile.setFileName(fileDest); + if(!outFile.open(QIODevice::WriteOnly)) return false; + + // Copio i dati + if (!copyData(inFile, outFile) || inFile.getZipError()!=UNZ_OK) { + outFile.close(); + removeFile(QStringList(fileDest)); + return false; + } + outFile.close(); + + // Chiudo i file + inFile.close(); + if (inFile.getZipError()!=UNZ_OK) { + removeFile(QStringList(fileDest)); + return false; + } + + if (srcPerm != 0) { + outFile.setPermissions(srcPerm); + } + return true; +} + +bool JlCompress::removeFile(QStringList listFile) { + bool ret = true; + // Per ogni file + for (int i=0; iopen(QuaZip::mdUnzip)) { + delete zip; + return QStringList(); + } + + // Estraggo i nomi dei file + QStringList lst; + QuaZipFileInfo64 info; + for(bool more=zip->goToFirstFile(); more; more=zip->goToNextFile()) { + if(!zip->getCurrentFileInfo(&info)) { + delete zip; + return QStringList(); + } + lst << info.name; + //info.name.toLocal8Bit().constData() + } + + // Chiudo il file zip + zip->close(); + if(zip->getZipError()!=0) { + delete zip; + return QStringList(); + } + delete zip; + return lst; +} + +QStringList JlCompress::extractDir(QIODevice *ioDevice, QString dir) +{ + QuaZip zip(ioDevice); + return extractDir(zip, dir); +} + +QStringList JlCompress::getFileList(QIODevice *ioDevice) +{ + QuaZip *zip = new QuaZip(ioDevice); + return getFileList(zip); +} + +QString JlCompress::extractFile(QIODevice *ioDevice, QString fileName, QString fileDest) +{ + QuaZip zip(ioDevice); + return extractFile(zip, fileName, fileDest); +} + +QStringList JlCompress::extractFiles(QIODevice *ioDevice, QStringList files, QString dir) +{ + QuaZip zip(ioDevice); + return extractFiles(zip, files, dir); +} diff --git a/JlCompress.h b/JlCompress.h new file mode 100644 index 0000000..49c5086 --- /dev/null +++ b/JlCompress.h @@ -0,0 +1,197 @@ +#ifndef JLCOMPRESSFOLDER_H_ +#define JLCOMPRESSFOLDER_H_ + +/* +Copyright (C) 2010 Roberto Pompermaier +Copyright (C) 2005-2016 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include "quazip.h" +#include "quazipfile.h" +#include "quazipfileinfo.h" +#include +#include +#include +#include + +/// Utility class for typical operations. +/** + This class contains a number of useful static functions to perform + simple operations, such as mass ZIP packing or extraction. + */ +class QUAZIP_EXPORT JlCompress { +private: + static QStringList extractDir(QuaZip &zip, const QString &dir); + static QStringList getFileList(QuaZip *zip); + static QString extractFile(QuaZip &zip, QString fileName, QString fileDest); + static QStringList extractFiles(QuaZip &zip, const QStringList &files, const QString &dir); + /// Compress a single file. + /** + \param zip Opened zip to compress the file to. + \param fileName The full path to the source file. + \param fileDest The full name of the file inside the archive. + \return true if success, false otherwise. + */ + static bool compressFile(QuaZip* zip, QString fileName, QString fileDest); + /// Compress a subdirectory. + /** + \param parentZip Opened zip containing the parent directory. + \param dir The full path to the directory to pack. + \param parentDir The full path to the directory corresponding to + the root of the ZIP. + \param recursive Whether to pack sub-directories as well or only + files. + \return true if success, false otherwise. + */ + static bool compressSubDir(QuaZip* parentZip, QString dir, QString parentDir, bool recursive, + QDir::Filters filters); + /// Extract a single file. + /** + \param zip The opened zip archive to extract from. + \param fileName The full name of the file to extract. + \param fileDest The full path to the destination file. + \return true if success, false otherwise. + */ + static bool extractFile(QuaZip* zip, QString fileName, QString fileDest); + /// Remove some files. + /** + \param listFile The list of files to remove. + \return true if success, false otherwise. + */ + static bool removeFile(QStringList listFile); + +public: + /// Compress a single file. + /** + \param fileCompressed The name of the archive. + \param file The file to compress. + \return true if success, false otherwise. + */ + static bool compressFile(QString fileCompressed, QString file); + /// Compress a list of files. + /** + \param fileCompressed The name of the archive. + \param files The file list to compress. + \return true if success, false otherwise. + */ + static bool compressFiles(QString fileCompressed, QStringList files); + /// Compress a whole directory. + /** + Does not compress hidden files. See compressDir(QString, QString, bool, QDir::Filters). + + \param fileCompressed The name of the archive. + \param dir The directory to compress. + \param recursive Whether to pack the subdirectories as well, or + just regular files. + \return true if success, false otherwise. + */ + static bool compressDir(QString fileCompressed, QString dir = QString(), bool recursive = true); + /** + * @brief Compress a whole directory. + * + * Unless filters are specified explicitly, packs + * only regular non-hidden files (and subdirs, if @c recursive is true). + * If filters are specified, they are OR-combined with + * %QDir::AllDirs|%QDir::NoDotAndDotDot when searching for dirs + * and with QDir::Files when searching for files. + * + * @param fileCompressed path to the resulting archive + * @param dir path to the directory being compressed + * @param recursive if true, then the subdirectories are packed as well + * @param filters what to pack, filters are applied both when searching + * for subdirs (if packing recursively) and when looking for files to pack + * @return true on success, false otherwise + */ + static bool compressDir(QString fileCompressed, QString dir, + bool recursive, QDir::Filters filters); + +public: + /// Extract a single file. + /** + \param fileCompressed The name of the archive. + \param fileName The file to extract. + \param fileDest The destination file, assumed to be identical to + \a file if left empty. + \return The list of the full paths of the files extracted, empty on failure. + */ + static QString extractFile(QString fileCompressed, QString fileName, QString fileDest = QString()); + /// Extract a list of files. + /** + \param fileCompressed The name of the archive. + \param files The file list to extract. + \param dir The directory to put the files to, the current + directory if left empty. + \return The list of the full paths of the files extracted, empty on failure. + */ + static QStringList extractFiles(QString fileCompressed, QStringList files, QString dir = QString()); + /// Extract a whole archive. + /** + \param fileCompressed The name of the archive. + \param dir The directory to extract to, the current directory if + left empty. + \return The list of the full paths of the files extracted, empty on failure. + */ + static QStringList extractDir(QString fileCompressed, QString dir = QString()); + /// Get the file list. + /** + \return The list of the files in the archive, or, more precisely, the + list of the entries, including both files and directories if they + are present separately. + */ + static QStringList getFileList(QString fileCompressed); + /// Extract a single file. + /** + \param ioDevice pointer to device with compressed data. + \param fileName The file to extract. + \param fileDest The destination file, assumed to be identical to + \a file if left empty. + \return The list of the full paths of the files extracted, empty on failure. + */ + static QString extractFile(QIODevice *ioDevice, QString fileName, QString fileDest = QString()); + /// Extract a list of files. + /** + \param ioDevice pointer to device with compressed data. + \param files The file list to extract. + \param dir The directory to put the files to, the current + directory if left empty. + \return The list of the full paths of the files extracted, empty on failure. + */ + static QStringList extractFiles(QIODevice *ioDevice, QStringList files, QString dir = QString()); + /// Extract a whole archive. + /** + \param ioDevice pointer to device with compressed data. + \param dir The directory to extract to, the current directory if + left empty. + \return The list of the full paths of the files extracted, empty on failure. + */ + static QStringList extractDir(QIODevice *ioDevice, QString dir = QString()); + /// Get the file list. + /** + \return The list of the files in the archive, or, more precisely, the + list of the entries, including both files and directories if they + are present separately. + */ + static QStringList getFileList(QIODevice *ioDevice); +}; + +#endif /* JLCOMPRESSFOLDER_H_ */ diff --git a/Quazip.pro b/Quazip.pro new file mode 100644 index 0000000..ecb9fa9 --- /dev/null +++ b/Quazip.pro @@ -0,0 +1,50 @@ +QT += core +QT -= gui widgets + +TARGET = quazip + +PROJECT_ROOT = ../.. + +DEFINES += QUAZIP_BUILD +LIBS += -lz + +SOURCES += \ + qioapi.cpp \ + JlCompress.cpp \ + quaadler32.cpp \ + quacrc32.cpp \ + quagzipfile.cpp \ + quaziodevice.cpp \ + quazip.cpp \ + quazipdir.cpp \ + quazipfile.cpp \ + quazipfileinfo.cpp \ + quazipnewinfo.cpp \ + unzip.c \ + zip.c + +HEADERS += \ + crypt.h \ + ioapi.h \ + JlCompress.h \ + quaadler32.h \ + quachecksum32.h \ + quacrc32.h \ + quagzipfile.h \ + quaziodevice.h \ + quazipdir.h \ + quazipfile.h \ + quazipfileinfo.h \ + quazip_global.h \ + quazip.h \ + quazipnewinfo.h \ + unzip.h \ + zip.h + +FORMS += + +RESOURCES += + +TRANSLATIONS += + +include($${PROJECT_ROOT}/lib.pri) diff --git a/crypt.h b/crypt.h new file mode 100644 index 0000000..ddee28e --- /dev/null +++ b/crypt.h @@ -0,0 +1,135 @@ +/* crypt.h -- base code for crypt/uncrypt ZIPfile + + + Version 1.01e, February 12th, 2005 + + Copyright (C) 1998-2005 Gilles Vollant + + This code is a modified version of crypting code in Infozip distribution + + The encryption/decryption parts of this source code (as opposed to the + non-echoing password parts) were originally written in Europe. The + whole source package can be freely distributed, including from the USA. + (Prior to January 2000, re-export from the US was a violation of US law.) + + This encryption code is a direct transcription of the algorithm from + Roger Schlafly, described by Phil Katz in the file appnote.txt. This + file (appnote.txt) is distributed with the PKZIP program (even in the + version without encryption capabilities). + + If you don't need crypting in your application, just define symbols + NOCRYPT and NOUNCRYPT. + + This code support the "Traditional PKWARE Encryption". + + The new AES encryption added on Zip format by Winzip (see the page + http://www.winzip.com/aes_info.htm ) and PKWare PKZip 5.x Strong + Encryption is not supported. +*/ + +#include "quazip_global.h" + +#define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8)) + +/*********************************************************************** + * Return the next byte in the pseudo-random sequence + */ +static int decrypt_byte(unsigned long* pkeys, const z_crc_t FAR * pcrc_32_tab UNUSED) +{ + //(void) pcrc_32_tab; /* avoid "unused parameter" warning */ + unsigned temp; /* POTENTIAL BUG: temp*(temp^1) may overflow in an + * unpredictable manner on 16-bit systems; not a problem + * with any known compiler so far, though */ + + temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2; + return (int)(((temp * (temp ^ 1)) >> 8) & 0xff); +} + +/*********************************************************************** + * Update the encryption keys with the next byte of plain text + */ +static int update_keys(unsigned long* pkeys,const z_crc_t FAR * pcrc_32_tab,int c) +{ + (*(pkeys+0)) = CRC32((*(pkeys+0)), c); + (*(pkeys+1)) += (*(pkeys+0)) & 0xff; + (*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1; + { + register int keyshift = (int)((*(pkeys+1)) >> 24); + (*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift); + } + return c; +} + + +/*********************************************************************** + * Initialize the encryption keys and the random header according to + * the given password. + */ +static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t FAR * pcrc_32_tab) +{ + *(pkeys+0) = 305419896L; + *(pkeys+1) = 591751049L; + *(pkeys+2) = 878082192L; + while (*passwd != '\0') { + update_keys(pkeys,pcrc_32_tab,(int)*passwd); + passwd++; + } +} + +#define zdecode(pkeys,pcrc_32_tab,c) \ + (update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab))) + +#define zencode(pkeys,pcrc_32_tab,c,t) \ + (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), t^(c)) + +#ifdef INCLUDECRYPTINGCODE_IFCRYPTALLOWED + +#define RAND_HEAD_LEN 12 + /* "last resort" source for second part of crypt seed pattern */ +# ifndef ZCR_SEED2 +# define ZCR_SEED2 3141592654UL /* use PI as default pattern */ +# endif + +static int crypthead(passwd, buf, bufSize, pkeys, pcrc_32_tab, crcForCrypting) + const char *passwd; /* password string */ + unsigned char *buf; /* where to write header */ + int bufSize; + unsigned long* pkeys; + const z_crc_t FAR * pcrc_32_tab; + unsigned long crcForCrypting; +{ + int n; /* index in random header */ + int t; /* temporary */ + int c; /* random byte */ + unsigned char header[RAND_HEAD_LEN-2]; /* random header */ + static unsigned calls = 0; /* ensure different random header each time */ + + if (bufSize> 7) & 0xff; + header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t); + } + /* Encrypt random header (last two bytes is high word of crc) */ + init_keys(passwd, pkeys, pcrc_32_tab); + for (n = 0; n < RAND_HEAD_LEN-2; n++) + { + buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t); + } + buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t); + buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t); + return n; +} + +#endif diff --git a/ioapi.h b/ioapi.h new file mode 100644 index 0000000..bbb94c8 --- /dev/null +++ b/ioapi.h @@ -0,0 +1,207 @@ +/* ioapi.h -- IO base function header for compress/uncompress .zip + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) + + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications for Zip64 support + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + Modified by Sergey A. Tachenov to allow QIODevice API usage. + + For more info read MiniZip_info.txt + + Changes + + Oct-2009 - Defined ZPOS64_T to fpos_t on windows and u_int64_t on linux. (might need to find a better why for this) + Oct-2009 - Change to fseeko64, ftello64 and fopen64 so large files would work on linux. + More if/def section may be needed to support other platforms + Oct-2009 - Defined fxxxx64 calls to normal fopen/ftell/fseek so they would compile on windows. + (but you should use iowin32.c for windows instead) + +*/ + +#ifndef _ZLIBIOAPI64_H +#define _ZLIBIOAPI64_H + +#if (!defined(_WIN32)) && (!defined(WIN32)) + + // Linux needs this to support file operation on files larger then 4+GB + // But might need better if/def to select just the platforms that needs them. + + #ifndef __USE_FILE_OFFSET64 + #define __USE_FILE_OFFSET64 + #endif + #ifndef __USE_LARGEFILE64 + #define __USE_LARGEFILE64 + #endif + #ifndef _LARGEFILE64_SOURCE + #define _LARGEFILE64_SOURCE + #endif + #ifndef _FILE_OFFSET_BIT + #define _FILE_OFFSET_BIT 64 + #endif +#endif + +#include +#include +#include "zlib.h" + +#if defined(USE_FILE32API) +#define fopen64 fopen +#define ftello64 ftell +#define fseeko64 fseek +#else +#ifdef _MSC_VER + #define fopen64 fopen + #if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC))) + #define ftello64 _ftelli64 + #define fseeko64 _fseeki64 + #else // old MSC + #define ftello64 ftell + #define fseeko64 fseek + #endif +#endif +#endif + +/* +#ifndef ZPOS64_T + #ifdef _WIN32 + #define ZPOS64_T fpos_t + #else + #include + #define ZPOS64_T uint64_t + #endif +#endif +*/ + +#ifdef HAVE_MINIZIP64_CONF_H +#include "mz64conf.h" +#endif + +/* a type choosen by DEFINE */ +#ifdef HAVE_64BIT_INT_CUSTOM +typedef 64BIT_INT_CUSTOM_TYPE ZPOS64_T; +#else +#ifdef HAS_STDINT_H +#include "stdint.h" +typedef uint64_t ZPOS64_T; +#else + + +#if defined(_MSC_VER) || defined(__BORLANDC__) +typedef unsigned __int64 ZPOS64_T; +#else +typedef unsigned long long int ZPOS64_T; +#endif +#endif +#endif + + + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef OF +#define OF _Z_OF +#endif + +#define ZLIB_FILEFUNC_SEEK_CUR (1) +#define ZLIB_FILEFUNC_SEEK_END (2) +#define ZLIB_FILEFUNC_SEEK_SET (0) + +#define ZLIB_FILEFUNC_MODE_READ (1) +#define ZLIB_FILEFUNC_MODE_WRITE (2) +#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3) + +#define ZLIB_FILEFUNC_MODE_EXISTING (4) +#define ZLIB_FILEFUNC_MODE_CREATE (8) + + +#ifndef ZCALLBACK + #if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK) + #define ZCALLBACK CALLBACK + #else + #define ZCALLBACK + #endif +#endif + + + + +typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, voidpf file, int mode)); +typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size)); +typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size)); +typedef int (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream)); +typedef int (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream)); + +typedef uLong (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream)); +typedef int (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin)); + + +/* here is the "old" 32 bits structure structure */ +typedef struct zlib_filefunc_def_s +{ + open_file_func zopen_file; + read_file_func zread_file; + write_file_func zwrite_file; + tell_file_func ztell_file; + seek_file_func zseek_file; + close_file_func zclose_file; + testerror_file_func zerror_file; + voidpf opaque; +} zlib_filefunc_def; + +typedef ZPOS64_T (ZCALLBACK *tell64_file_func) OF((voidpf opaque, voidpf stream)); +typedef int (ZCALLBACK *seek64_file_func) OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)); +typedef voidpf (ZCALLBACK *open64_file_func) OF((voidpf opaque, voidpf file, int mode)); + +typedef struct zlib_filefunc64_def_s +{ + open64_file_func zopen64_file; + read_file_func zread_file; + write_file_func zwrite_file; + tell64_file_func ztell64_file; + seek64_file_func zseek64_file; + close_file_func zclose_file; + testerror_file_func zerror_file; + voidpf opaque; + close_file_func zfakeclose_file; // for no-auto-close flag +} zlib_filefunc64_def; + +void fill_qiodevice64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def)); +void fill_qiodevice_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def)); + +/* now internal definition, only for zip.c and unzip.h */ +typedef struct zlib_filefunc64_32_def_s +{ + zlib_filefunc64_def zfile_func64; + open_file_func zopen32_file; + tell_file_func ztell32_file; + seek_file_func zseek32_file; +} zlib_filefunc64_32_def; + + +#define ZREAD64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zread_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size)) +#define ZWRITE64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zwrite_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size)) +//#define ZTELL64(filefunc,filestream) ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream)) +//#define ZSEEK64(filefunc,filestream,pos,mode) ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode)) +#define ZCLOSE64(filefunc,filestream) ((*((filefunc).zfile_func64.zclose_file)) ((filefunc).zfile_func64.opaque,filestream)) +#define ZFAKECLOSE64(filefunc,filestream) ((*((filefunc).zfile_func64.zfakeclose_file)) ((filefunc).zfile_func64.opaque,filestream)) +#define ZERROR64(filefunc,filestream) ((*((filefunc).zfile_func64.zerror_file)) ((filefunc).zfile_func64.opaque,filestream)) + +voidpf call_zopen64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf file,int mode)); +int call_zseek64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)); +ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)); + +void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32); + +#define ZOPEN64(filefunc,filename,mode) (call_zopen64((&(filefunc)),(filename),(mode))) +#define ZTELL64(filefunc,filestream) (call_ztell64((&(filefunc)),(filestream))) +#define ZSEEK64(filefunc,filestream,pos,mode) (call_zseek64((&(filefunc)),(filestream),(pos),(mode))) + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/qioapi.cpp b/qioapi.cpp new file mode 100644 index 0000000..641883b --- /dev/null +++ b/qioapi.cpp @@ -0,0 +1,363 @@ +/* ioapi.c -- IO base function header for compress/uncompress .zip + files using zlib + zip or unzip API + + Version 1.01e, February 12th, 2005 + + Copyright (C) 1998-2005 Gilles Vollant + + Modified by Sergey A. Tachenov to integrate with Qt. +*/ + +#include +#include +#include + +#include "zlib.h" +#include "ioapi.h" +#include "quazip_global.h" +#include +#if (QT_VERSION >= 0x050100) +#define QUAZIP_QSAVEFILE_BUG_WORKAROUND +#endif +#ifdef QUAZIP_QSAVEFILE_BUG_WORKAROUND +#include +#endif + +/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */ + +#ifndef SEEK_CUR +#define SEEK_CUR 1 +#endif + +#ifndef SEEK_END +#define SEEK_END 2 +#endif + +#ifndef SEEK_SET +#define SEEK_SET 0 +#endif + +voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,voidpf file,int mode) +{ + if (pfilefunc->zfile_func64.zopen64_file != NULL) + return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,file,mode); + else + { + return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,file,mode); + } +} + +int call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin) +{ + if (pfilefunc->zfile_func64.zseek64_file != NULL) + return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin); + else + { + uLong offsetTruncated = (uLong)offset; + if (offsetTruncated != offset) + return -1; + else + return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin); + } +} + +ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream) +{ + if (pfilefunc->zfile_func64.zseek64_file != NULL) + return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream); + else + { + uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream); + if ((tell_uLong) == ((uLong)-1)) + return (ZPOS64_T)-1; + else + return tell_uLong; + } +} + +/// @cond internal +struct QIODevice_descriptor { + // Position only used for writing to sequential devices. + qint64 pos; + inline QIODevice_descriptor(): + pos(0) + {} +}; +/// @endcond + +voidpf ZCALLBACK qiodevice_open_file_func ( + voidpf opaque, + voidpf file, + int mode) +{ + QIODevice_descriptor *d = reinterpret_cast(opaque); + QIODevice *iodevice = reinterpret_cast(file); + QIODevice::OpenMode desiredMode; + if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) + desiredMode = QIODevice::ReadOnly; + else if (mode & ZLIB_FILEFUNC_MODE_EXISTING) + desiredMode = QIODevice::ReadWrite; + else if (mode & ZLIB_FILEFUNC_MODE_CREATE) + desiredMode = QIODevice::WriteOnly; + if (iodevice->isOpen()) { + if ((iodevice->openMode() & desiredMode) == desiredMode) { + if (desiredMode != QIODevice::WriteOnly + && iodevice->isSequential()) { + // We can use sequential devices only for writing. + delete d; + return NULL; + } else { + if ((desiredMode & QIODevice::WriteOnly) != 0) { + // open for writing, need to seek existing device + if (!iodevice->isSequential()) { + iodevice->seek(0); + } else { + d->pos = iodevice->pos(); + } + } + } + return iodevice; + } else { + delete d; + return NULL; + } + } + iodevice->open(desiredMode); + if (iodevice->isOpen()) { + if (desiredMode != QIODevice::WriteOnly && iodevice->isSequential()) { + // We can use sequential devices only for writing. + iodevice->close(); + delete d; + return NULL; + } else { + return iodevice; + } + } else { + delete d; + return NULL; + } +} + + +uLong ZCALLBACK qiodevice_read_file_func ( + voidpf opaque, + voidpf stream, + void* buf, + uLong size) +{ + QIODevice_descriptor *d = reinterpret_cast(opaque); + QIODevice *iodevice = reinterpret_cast(stream); + qint64 ret64 = iodevice->read((char*)buf,size); + uLong ret; + ret = (uLong) ret64; + if (ret64 != -1) { + d->pos += ret64; + } + return ret; +} + + +uLong ZCALLBACK qiodevice_write_file_func ( + voidpf opaque, + voidpf stream, + const void* buf, + uLong size) +{ + QIODevice_descriptor *d = reinterpret_cast(opaque); + QIODevice *iodevice = reinterpret_cast(stream); + uLong ret; + qint64 ret64 = iodevice->write((char*)buf,size); + if (ret64 != -1) { + d->pos += ret64; + } + ret = (uLong) ret64; + return ret; +} + +uLong ZCALLBACK qiodevice_tell_file_func ( + voidpf opaque, + voidpf stream) +{ + QIODevice_descriptor *d = reinterpret_cast(opaque); + QIODevice *iodevice = reinterpret_cast(stream); + uLong ret; + qint64 ret64; + if (iodevice->isSequential()) { + ret64 = d->pos; + } else { + ret64 = iodevice->pos(); + } + ret = static_cast(ret64); + return ret; +} + +ZPOS64_T ZCALLBACK qiodevice64_tell_file_func ( + voidpf opaque, + voidpf stream) +{ + QIODevice_descriptor *d = reinterpret_cast(opaque); + QIODevice *iodevice = reinterpret_cast(stream); + qint64 ret; + if (iodevice->isSequential()) { + ret = d->pos; + } else { + ret = iodevice->pos(); + } + return static_cast(ret); +} + +int ZCALLBACK qiodevice_seek_file_func ( + voidpf /*opaque UNUSED*/, + voidpf stream, + uLong offset, + int origin) +{ + QIODevice *iodevice = reinterpret_cast(stream); + if (iodevice->isSequential()) { + if (origin == ZLIB_FILEFUNC_SEEK_END + && offset == 0) { + // sequential devices are always at end (needed in mdAppend) + return 0; + } else { + qWarning("qiodevice_seek_file_func() called for sequential device"); + return -1; + } + } + uLong qiodevice_seek_result=0; + int ret; + switch (origin) + { + case ZLIB_FILEFUNC_SEEK_CUR : + qiodevice_seek_result = ((QIODevice*)stream)->pos() + offset; + break; + case ZLIB_FILEFUNC_SEEK_END : + qiodevice_seek_result = ((QIODevice*)stream)->size() - offset; + break; + case ZLIB_FILEFUNC_SEEK_SET : + qiodevice_seek_result = offset; + break; + default: + return -1; + } + ret = !iodevice->seek(qiodevice_seek_result); + return ret; +} + +int ZCALLBACK qiodevice64_seek_file_func ( + voidpf /*opaque UNUSED*/, + voidpf stream, + ZPOS64_T offset, + int origin) +{ + QIODevice *iodevice = reinterpret_cast(stream); + if (iodevice->isSequential()) { + if (origin == ZLIB_FILEFUNC_SEEK_END + && offset == 0) { + // sequential devices are always at end (needed in mdAppend) + return 0; + } else { + qWarning("qiodevice_seek_file_func() called for sequential device"); + return -1; + } + } + qint64 qiodevice_seek_result=0; + int ret; + switch (origin) + { + case ZLIB_FILEFUNC_SEEK_CUR : + qiodevice_seek_result = ((QIODevice*)stream)->pos() + offset; + break; + case ZLIB_FILEFUNC_SEEK_END : + qiodevice_seek_result = ((QIODevice*)stream)->size() - offset; + break; + case ZLIB_FILEFUNC_SEEK_SET : + qiodevice_seek_result = offset; + break; + default: + return -1; + } + ret = !iodevice->seek(qiodevice_seek_result); + return ret; +} + +int ZCALLBACK qiodevice_close_file_func ( + voidpf opaque, + voidpf stream) +{ + QIODevice_descriptor *d = reinterpret_cast(opaque); + delete d; + QIODevice *device = reinterpret_cast(stream); +#ifdef QUAZIP_QSAVEFILE_BUG_WORKAROUND + // QSaveFile terribly breaks the is-a idiom: + // it IS a QIODevice, but it is NOT compatible with it: close() is private + QSaveFile *file = qobject_cast(device); + if (file != NULL) { + // We have to call the ugly commit() instead: + return file->commit() ? 0 : -1; + } +#endif + device->close(); + return 0; +} + +int ZCALLBACK qiodevice_fakeclose_file_func ( + voidpf opaque, + voidpf /*stream*/) +{ + QIODevice_descriptor *d = reinterpret_cast(opaque); + delete d; + return 0; +} + +int ZCALLBACK qiodevice_error_file_func ( + voidpf /*opaque UNUSED*/, + voidpf /*stream UNUSED*/) +{ + // can't check for error due to the QIODevice API limitation + return 0; +} + +void fill_qiodevice_filefunc ( + zlib_filefunc_def* pzlib_filefunc_def) +{ + pzlib_filefunc_def->zopen_file = qiodevice_open_file_func; + pzlib_filefunc_def->zread_file = qiodevice_read_file_func; + pzlib_filefunc_def->zwrite_file = qiodevice_write_file_func; + pzlib_filefunc_def->ztell_file = qiodevice_tell_file_func; + pzlib_filefunc_def->zseek_file = qiodevice_seek_file_func; + pzlib_filefunc_def->zclose_file = qiodevice_close_file_func; + pzlib_filefunc_def->zerror_file = qiodevice_error_file_func; + pzlib_filefunc_def->opaque = new QIODevice_descriptor; +} + +void fill_qiodevice64_filefunc ( + zlib_filefunc64_def* pzlib_filefunc_def) +{ + // Open functions are the same for Qt. + pzlib_filefunc_def->zopen64_file = qiodevice_open_file_func; + pzlib_filefunc_def->zread_file = qiodevice_read_file_func; + pzlib_filefunc_def->zwrite_file = qiodevice_write_file_func; + pzlib_filefunc_def->ztell64_file = qiodevice64_tell_file_func; + pzlib_filefunc_def->zseek64_file = qiodevice64_seek_file_func; + pzlib_filefunc_def->zclose_file = qiodevice_close_file_func; + pzlib_filefunc_def->zerror_file = qiodevice_error_file_func; + pzlib_filefunc_def->opaque = new QIODevice_descriptor; + pzlib_filefunc_def->zfakeclose_file = qiodevice_fakeclose_file_func; +} + +void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32) +{ + p_filefunc64_32->zfile_func64.zopen64_file = NULL; + p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file; + p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file; + p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file; + p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file; + p_filefunc64_32->zfile_func64.ztell64_file = NULL; + p_filefunc64_32->zfile_func64.zseek64_file = NULL; + p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file; + p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file; + p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque; + p_filefunc64_32->zfile_func64.zfakeclose_file = NULL; + p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file; + p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file; +} diff --git a/quaadler32.cpp b/quaadler32.cpp new file mode 100644 index 0000000..161db11 --- /dev/null +++ b/quaadler32.cpp @@ -0,0 +1,53 @@ +/* +Copyright (C) 2010 Adam Walczak +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include "quaadler32.h" + +#include "zlib.h" + +QuaAdler32::QuaAdler32() +{ + reset(); +} + +quint32 QuaAdler32::calculate(const QByteArray &data) +{ + return adler32( adler32(0L, Z_NULL, 0), (const Bytef*)data.data(), data.size() ); +} + +void QuaAdler32::reset() +{ + checksum = adler32(0L, Z_NULL, 0); +} + +void QuaAdler32::update(const QByteArray &buf) +{ + checksum = adler32( checksum, (const Bytef*)buf.data(), buf.size() ); +} + +quint32 QuaAdler32::value() +{ + return checksum; +} diff --git a/quaadler32.h b/quaadler32.h new file mode 100644 index 0000000..e8847f4 --- /dev/null +++ b/quaadler32.h @@ -0,0 +1,54 @@ +#ifndef QUAADLER32_H +#define QUAADLER32_H + +/* +Copyright (C) 2010 Adam Walczak +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include + +#include "quachecksum32.h" + +/// Adler32 checksum +/** \class QuaAdler32 quaadler32.h + * This class wrappers the adler32 function with the QuaChecksum32 interface. + * See QuaChecksum32 for more info. + */ +class QUAZIP_EXPORT QuaAdler32 : public QuaChecksum32 +{ + +public: + QuaAdler32(); + + quint32 calculate(const QByteArray &data); + + void reset(); + void update(const QByteArray &buf); + quint32 value(); + +private: + quint32 checksum; +}; + +#endif //QUAADLER32_H diff --git a/quachecksum32.h b/quachecksum32.h new file mode 100644 index 0000000..40ff451 --- /dev/null +++ b/quachecksum32.h @@ -0,0 +1,78 @@ +#ifndef QUACHECKSUM32_H +#define QUACHECKSUM32_H + +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include +#include "quazip_global.h" + +/// Checksum interface. +/** \class QuaChecksum32 quachecksum32.h + * This is an interface for 32 bit checksums. + * Classes implementing this interface can calcunate a certin + * checksum in a single step: + * \code + * QChecksum32 *crc32 = new QuaCrc32(); + * rasoult = crc32->calculate(data); + * \endcode + * or by streaming the data: + * \code + * QChecksum32 *crc32 = new QuaCrc32(); + * while(!fileA.atEnd()) + * crc32->update(fileA.read(bufSize)); + * resoultA = crc32->value(); + * crc32->reset(); + * while(!fileB.atEnd()) + * crc32->update(fileB.read(bufSize)); + * resoultB = crc32->value(); + * \endcode + */ +class QUAZIP_EXPORT QuaChecksum32 +{ + +public: + ///Calculates the checksum for data. + /** \a data source data + * \return data checksum + * + * This function has no efect on the value returned by value(). + */ + virtual quint32 calculate(const QByteArray &data) = 0; + + ///Resets the calculation on a checksun for a stream. + virtual void reset() = 0; + + ///Updates the calculated checksum for the stream + /** \a buf next portion of data from the stream + */ + virtual void update(const QByteArray &buf) = 0; + + ///Value of the checksum calculated for the stream passed throw update(). + /** \return checksum + */ + virtual quint32 value() = 0; +}; + +#endif //QUACHECKSUM32_H diff --git a/quacrc32.cpp b/quacrc32.cpp new file mode 100644 index 0000000..2de5117 --- /dev/null +++ b/quacrc32.cpp @@ -0,0 +1,52 @@ +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include "quacrc32.h" + +#include "zlib.h" + +QuaCrc32::QuaCrc32() +{ + reset(); +} + +quint32 QuaCrc32::calculate(const QByteArray &data) +{ + return crc32( crc32(0L, Z_NULL, 0), (const Bytef*)data.data(), data.size() ); +} + +void QuaCrc32::reset() +{ + checksum = crc32(0L, Z_NULL, 0); +} + +void QuaCrc32::update(const QByteArray &buf) +{ + checksum = crc32( checksum, (const Bytef*)buf.data(), buf.size() ); +} + +quint32 QuaCrc32::value() +{ + return checksum; +} diff --git a/quacrc32.h b/quacrc32.h new file mode 100644 index 0000000..af7703b --- /dev/null +++ b/quacrc32.h @@ -0,0 +1,50 @@ +#ifndef QUACRC32_H +#define QUACRC32_H + +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include "quachecksum32.h" + +///CRC32 checksum +/** \class QuaCrc32 quacrc32.h +* This class wrappers the crc32 function with the QuaChecksum32 interface. +* See QuaChecksum32 for more info. +*/ +class QUAZIP_EXPORT QuaCrc32 : public QuaChecksum32 { + +public: + QuaCrc32(); + + quint32 calculate(const QByteArray &data); + + void reset(); + void update(const QByteArray &buf); + quint32 value(); + +private: + quint32 checksum; +}; + +#endif //QUACRC32_H diff --git a/quagzipfile.cpp b/quagzipfile.cpp new file mode 100644 index 0000000..efc54c1 --- /dev/null +++ b/quagzipfile.cpp @@ -0,0 +1,172 @@ +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include + +#include "quagzipfile.h" + +/// \cond internal +class QuaGzipFilePrivate { + friend class QuaGzipFile; + QString fileName; + gzFile gzd; + inline QuaGzipFilePrivate(): gzd(NULL) {} + inline QuaGzipFilePrivate(const QString &fileName): + fileName(fileName), gzd(NULL) {} + template bool open(FileId id, + QIODevice::OpenMode mode, QString &error); + gzFile open(int fd, const char *modeString); + gzFile open(const QString &name, const char *modeString); +}; + +gzFile QuaGzipFilePrivate::open(const QString &name, const char *modeString) +{ + return gzopen(QFile::encodeName(name).constData(), modeString); +} + +gzFile QuaGzipFilePrivate::open(int fd, const char *modeString) +{ + return gzdopen(fd, modeString); +} + +template +bool QuaGzipFilePrivate::open(FileId id, QIODevice::OpenMode mode, + QString &error) +{ + char modeString[2]; + modeString[0] = modeString[1] = '\0'; + if ((mode & QIODevice::Append) != 0) { + error = QuaGzipFile::trUtf8("QIODevice::Append is not " + "supported for GZIP"); + return false; + } + if ((mode & QIODevice::ReadOnly) != 0 + && (mode & QIODevice::WriteOnly) != 0) { + error = QuaGzipFile::trUtf8("Opening gzip for both reading" + " and writing is not supported"); + return false; + } else if ((mode & QIODevice::ReadOnly) != 0) { + modeString[0] = 'r'; + } else if ((mode & QIODevice::WriteOnly) != 0) { + modeString[0] = 'w'; + } else { + error = QuaGzipFile::trUtf8("You can open a gzip either for reading" + " or for writing. Which is it?"); + return false; + } + gzd = open(id, modeString); + if (gzd == NULL) { + error = QuaGzipFile::trUtf8("Could not gzopen() file"); + return false; + } + return true; +} +/// \endcond + +QuaGzipFile::QuaGzipFile(): +d(new QuaGzipFilePrivate()) +{ +} + +QuaGzipFile::QuaGzipFile(QObject *parent): +QIODevice(parent), +d(new QuaGzipFilePrivate()) +{ +} + +QuaGzipFile::QuaGzipFile(const QString &fileName, QObject *parent): + QIODevice(parent), +d(new QuaGzipFilePrivate(fileName)) +{ +} + +QuaGzipFile::~QuaGzipFile() +{ + if (isOpen()) { + close(); + } + delete d; +} + +void QuaGzipFile::setFileName(const QString& fileName) +{ + d->fileName = fileName; +} + +QString QuaGzipFile::getFileName() const +{ + return d->fileName; +} + +bool QuaGzipFile::isSequential() const +{ + return true; +} + +bool QuaGzipFile::open(QIODevice::OpenMode mode) +{ + QString error; + if (!d->open(d->fileName, mode, error)) { + setErrorString(error); + return false; + } + return QIODevice::open(mode); +} + +bool QuaGzipFile::open(int fd, QIODevice::OpenMode mode) +{ + QString error; + if (!d->open(fd, mode, error)) { + setErrorString(error); + return false; + } + return QIODevice::open(mode); +} + +bool QuaGzipFile::flush() +{ + return gzflush(d->gzd, Z_SYNC_FLUSH) == Z_OK; +} + +void QuaGzipFile::close() +{ + QIODevice::close(); + gzclose(d->gzd); +} + +qint64 QuaGzipFile::readData(char *data, qint64 maxSize) +{ + return gzread(d->gzd, (voidp)data, (unsigned)maxSize); +} + +qint64 QuaGzipFile::writeData(const char *data, qint64 maxSize) +{ + if (maxSize == 0) + return 0; + int written = gzwrite(d->gzd, (voidp)data, (unsigned)maxSize); + if (written == 0) + return -1; + else + return written; +} diff --git a/quagzipfile.h b/quagzipfile.h new file mode 100644 index 0000000..e2f9d97 --- /dev/null +++ b/quagzipfile.h @@ -0,0 +1,108 @@ +#ifndef QUAZIP_QUAGZIPFILE_H +#define QUAZIP_QUAGZIPFILE_H + +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include +#include "quazip_global.h" + +#include + +class QuaGzipFilePrivate; + +/// GZIP file +/** + This class is a wrapper around GZIP file access functions in zlib. Unlike QuaZip classes, it doesn't allow reading from a GZIP file opened as QIODevice, for example, if your GZIP file is in QBuffer. It only provides QIODevice access to a GZIP file contents, but the GZIP file itself must be identified by its name on disk or by descriptor id. + */ +class QUAZIP_EXPORT QuaGzipFile: public QIODevice { + Q_OBJECT +public: + /// Empty constructor. + /** + Must call setFileName() before trying to open. + */ + QuaGzipFile(); + /// Empty constructor with a parent. + /** + Must call setFileName() before trying to open. + \param parent The parent object, as per QObject logic. + */ + QuaGzipFile(QObject *parent); + /// Constructor. + /** + \param fileName The name of the GZIP file. + \param parent The parent object, as per QObject logic. + */ + QuaGzipFile(const QString &fileName, QObject *parent = NULL); + /// Destructor. + virtual ~QuaGzipFile(); + /// Sets the name of the GZIP file to be opened. + void setFileName(const QString& fileName); + /// Returns the name of the GZIP file. + QString getFileName() const; + /// Returns true. + /** + Strictly speaking, zlib supports seeking for GZIP files, but it is + poorly implemented, because there is no way to implement it + properly. For reading, seeking backwards is very slow, and for + writing, it is downright impossible. Therefore, QuaGzipFile does not + support seeking at all. + */ + virtual bool isSequential() const; + /// Opens the file. + /** + \param mode Can be either QIODevice::Write or QIODevice::Read. + ReadWrite and Append aren't supported. + */ + virtual bool open(QIODevice::OpenMode mode); + /// Opens the file. + /** + \overload + \param fd The file descriptor to read/write the GZIP file from/to. + \param mode Can be either QIODevice::Write or QIODevice::Read. + ReadWrite and Append aren't supported. + */ + virtual bool open(int fd, QIODevice::OpenMode mode); + /// Flushes data to file. + /** + The data is written using Z_SYNC_FLUSH mode. Doesn't make any sense + when reading. + */ + virtual bool flush(); + /// Closes the file. + virtual void close(); +protected: + /// Implementation of QIODevice::readData(). + virtual qint64 readData(char *data, qint64 maxSize); + /// Implementation of QIODevice::writeData(). + virtual qint64 writeData(const char *data, qint64 maxSize); +private: + // not implemented by design to disable copy + QuaGzipFile(const QuaGzipFile &that); + QuaGzipFile& operator=(const QuaGzipFile &that); + QuaGzipFilePrivate *d; +}; + +#endif // QUAZIP_QUAGZIPFILE_H diff --git a/quaziodevice.cpp b/quaziodevice.cpp new file mode 100644 index 0000000..04f34bf --- /dev/null +++ b/quaziodevice.cpp @@ -0,0 +1,339 @@ +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include "quaziodevice.h" + +#define QUAZIO_INBUFSIZE 4096 +#define QUAZIO_OUTBUFSIZE 4096 + +/// \cond internal +class QuaZIODevicePrivate { + friend class QuaZIODevice; + QuaZIODevicePrivate(QIODevice *io); + ~QuaZIODevicePrivate(); + QIODevice *io; + z_stream zins; + z_stream zouts; + char *inBuf; + int inBufPos; + int inBufSize; + char *outBuf; + int outBufPos; + int outBufSize; + bool zBufError; + bool atEnd; + int doFlush(QString &error); +}; + +QuaZIODevicePrivate::QuaZIODevicePrivate(QIODevice *io): + io(io), + inBuf(NULL), + inBufPos(0), + inBufSize(0), + outBuf(NULL), + outBufPos(0), + outBufSize(0), + zBufError(false), + atEnd(false) +{ + zins.zalloc = (alloc_func) NULL; + zins.zfree = (free_func) NULL; + zins.opaque = NULL; + zouts.zalloc = (alloc_func) NULL; + zouts.zfree = (free_func) NULL; + zouts.opaque = NULL; + inBuf = new char[QUAZIO_INBUFSIZE]; + outBuf = new char[QUAZIO_OUTBUFSIZE]; +#ifdef QUAZIP_ZIODEVICE_DEBUG_OUTPUT + debug.setFileName("debug.out"); + debug.open(QIODevice::WriteOnly); +#endif +#ifdef QUAZIP_ZIODEVICE_DEBUG_INPUT + indebug.setFileName("debug.in"); + indebug.open(QIODevice::WriteOnly); +#endif +} + +QuaZIODevicePrivate::~QuaZIODevicePrivate() +{ +#ifdef QUAZIP_ZIODEVICE_DEBUG_OUTPUT + debug.close(); +#endif +#ifdef QUAZIP_ZIODEVICE_DEBUG_INPUT + indebug.close(); +#endif + if (inBuf != NULL) + delete[] inBuf; + if (outBuf != NULL) + delete[] outBuf; +} + +int QuaZIODevicePrivate::doFlush(QString &error) +{ + int flushed = 0; + while (outBufPos < outBufSize) { + int more = io->write(outBuf + outBufPos, outBufSize - outBufPos); + if (more == -1) { + error = io->errorString(); + return -1; + } + if (more == 0) + break; + outBufPos += more; + flushed += more; + } + if (outBufPos == outBufSize) { + outBufPos = outBufSize = 0; + } + return flushed; +} + +/// \endcond + +// #define QUAZIP_ZIODEVICE_DEBUG_OUTPUT +// #define QUAZIP_ZIODEVICE_DEBUG_INPUT +#ifdef QUAZIP_ZIODEVICE_DEBUG_OUTPUT +#include +static QFile debug; +#endif +#ifdef QUAZIP_ZIODEVICE_DEBUG_INPUT +#include +static QFile indebug; +#endif + +QuaZIODevice::QuaZIODevice(QIODevice *io, QObject *parent): + QIODevice(parent), + d(new QuaZIODevicePrivate(io)) +{ + connect(io, SIGNAL(readyRead()), SIGNAL(readyRead())); +} + +QuaZIODevice::~QuaZIODevice() +{ + if (isOpen()) + close(); + delete d; +} + +QIODevice *QuaZIODevice::getIoDevice() const +{ + return d->io; +} + +bool QuaZIODevice::open(QIODevice::OpenMode mode) +{ + if ((mode & QIODevice::Append) != 0) { + setErrorString(trUtf8("QIODevice::Append is not supported for" + " QuaZIODevice")); + return false; + } + if ((mode & QIODevice::ReadWrite) == QIODevice::ReadWrite) { + setErrorString(trUtf8("QIODevice::ReadWrite is not supported for" + " QuaZIODevice")); + return false; + } + if ((mode & QIODevice::ReadOnly) != 0) { + if (inflateInit(&d->zins) != Z_OK) { + setErrorString(d->zins.msg); + return false; + } + } + if ((mode & QIODevice::WriteOnly) != 0) { + if (deflateInit(&d->zouts, Z_DEFAULT_COMPRESSION) != Z_OK) { + setErrorString(d->zouts.msg); + return false; + } + } + return QIODevice::open(mode); +} + +void QuaZIODevice::close() +{ + if ((openMode() & QIODevice::ReadOnly) != 0) { + if (inflateEnd(&d->zins) != Z_OK) { + setErrorString(d->zins.msg); + } + } + if ((openMode() & QIODevice::WriteOnly) != 0) { + flush(); + if (deflateEnd(&d->zouts) != Z_OK) { + setErrorString(d->zouts.msg); + } + } + QIODevice::close(); +} + +qint64 QuaZIODevice::readData(char *data, qint64 maxSize) +{ + int read = 0; + while (read < maxSize) { + if (d->inBufPos == d->inBufSize) { + d->inBufPos = 0; + d->inBufSize = d->io->read(d->inBuf, QUAZIO_INBUFSIZE); + if (d->inBufSize == -1) { + d->inBufSize = 0; + setErrorString(d->io->errorString()); + return -1; + } + if (d->inBufSize == 0) + break; + } + while (read < maxSize && d->inBufPos < d->inBufSize) { + d->zins.next_in = (Bytef *) (d->inBuf + d->inBufPos); + d->zins.avail_in = d->inBufSize - d->inBufPos; + d->zins.next_out = (Bytef *) (data + read); + d->zins.avail_out = (uInt) (maxSize - read); // hope it's less than 2GB + int more = 0; + switch (inflate(&d->zins, Z_SYNC_FLUSH)) { + case Z_OK: + read = (char *) d->zins.next_out - data; + d->inBufPos = (char *) d->zins.next_in - d->inBuf; + break; + case Z_STREAM_END: + read = (char *) d->zins.next_out - data; + d->inBufPos = (char *) d->zins.next_in - d->inBuf; + d->atEnd = true; + return read; + case Z_BUF_ERROR: // this should never happen, but just in case + if (!d->zBufError) { + qWarning("Z_BUF_ERROR detected with %d/%d in/out, weird", + d->zins.avail_in, d->zins.avail_out); + d->zBufError = true; + } + memmove(d->inBuf, d->inBuf + d->inBufPos, d->inBufSize - d->inBufPos); + d->inBufSize -= d->inBufPos; + d->inBufPos = 0; + more = d->io->read(d->inBuf + d->inBufSize, QUAZIO_INBUFSIZE - d->inBufSize); + if (more == -1) { + setErrorString(d->io->errorString()); + return -1; + } + if (more == 0) + return read; + d->inBufSize += more; + break; + default: + setErrorString(QString::fromLocal8Bit(d->zins.msg)); + return -1; + } + } + } +#ifdef QUAZIP_ZIODEVICE_DEBUG_INPUT + indebug.write(data, read); +#endif + return read; +} + +qint64 QuaZIODevice::writeData(const char *data, qint64 maxSize) +{ + int written = 0; + QString error; + if (d->doFlush(error) == -1) { + setErrorString(error); + return -1; + } + while (written < maxSize) { + // there is some data waiting in the output buffer + if (d->outBufPos < d->outBufSize) + return written; + d->zouts.next_in = (Bytef *) (data + written); + d->zouts.avail_in = (uInt) (maxSize - written); // hope it's less than 2GB + d->zouts.next_out = (Bytef *) d->outBuf; + d->zouts.avail_out = QUAZIO_OUTBUFSIZE; + switch (deflate(&d->zouts, Z_NO_FLUSH)) { + case Z_OK: + written = (char *) d->zouts.next_in - data; + d->outBufSize = (char *) d->zouts.next_out - d->outBuf; + break; + default: + setErrorString(QString::fromLocal8Bit(d->zouts.msg)); + return -1; + } + if (d->doFlush(error) == -1) { + setErrorString(error); + return -1; + } + } +#ifdef QUAZIP_ZIODEVICE_DEBUG_OUTPUT + debug.write(data, written); +#endif + return written; +} + +bool QuaZIODevice::flush() +{ + QString error; + if (d->doFlush(error) < 0) { + setErrorString(error); + return false; + } + // can't flush buffer, some data is still waiting + if (d->outBufPos < d->outBufSize) + return true; + Bytef c = 0; + d->zouts.next_in = &c; // fake input buffer + d->zouts.avail_in = 0; // of zero size + do { + d->zouts.next_out = (Bytef *) d->outBuf; + d->zouts.avail_out = QUAZIO_OUTBUFSIZE; + switch (deflate(&d->zouts, Z_SYNC_FLUSH)) { + case Z_OK: + d->outBufSize = (char *) d->zouts.next_out - d->outBuf; + if (d->doFlush(error) < 0) { + setErrorString(error); + return false; + } + if (d->outBufPos < d->outBufSize) + return true; + break; + case Z_BUF_ERROR: // nothing to write? + return true; + default: + setErrorString(QString::fromLocal8Bit(d->zouts.msg)); + return false; + } + } while (d->zouts.avail_out == 0); + return true; +} + +bool QuaZIODevice::isSequential() const +{ + return true; +} + +bool QuaZIODevice::atEnd() const +{ + // Here we MUST check QIODevice::bytesAvailable() because WE + // might have reached the end, but QIODevice didn't-- + // it could have simply pre-buffered all remaining data. + return (openMode() == NotOpen) || (QIODevice::bytesAvailable() == 0 && d->atEnd); +} + +qint64 QuaZIODevice::bytesAvailable() const +{ + // If we haven't recevied Z_STREAM_END, it means that + // we have at least one more input byte available. + // Plus whatever QIODevice has buffered. + return (d->atEnd ? 0 : 1) + QIODevice::bytesAvailable(); +} diff --git a/quaziodevice.h b/quaziodevice.h new file mode 100644 index 0000000..63499c3 --- /dev/null +++ b/quaziodevice.h @@ -0,0 +1,102 @@ +#ifndef QUAZIP_QUAZIODEVICE_H +#define QUAZIP_QUAZIODEVICE_H + +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include +#include "quazip_global.h" + +#include + +class QuaZIODevicePrivate; + +/// A class to compress/decompress QIODevice. +/** + This class can be used to compress any data written to QIODevice or + decompress it back. Compressing data sent over a QTcpSocket is a good + example. + */ +class QUAZIP_EXPORT QuaZIODevice: public QIODevice { + Q_OBJECT +public: + /// Constructor. + /** + \param io The QIODevice to read/write. + \param parent The parent object, as per QObject logic. + */ + QuaZIODevice(QIODevice *io, QObject *parent = NULL); + /// Destructor. + ~QuaZIODevice(); + /// Flushes data waiting to be written. + /** + Unfortunately, as QIODevice doesn't support flush() by itself, the + only thing this method does is write the compressed data into the + device using Z_SYNC_FLUSH mode. If you need the compressed data to + actually be flushed from the buffer of the underlying QIODevice, you + need to call its flush() method as well, providing it supports it + (like QTcpSocket does). Example: + \code + QuaZIODevice dev(&sock); + dev.open(QIODevice::Write); + dev.write(yourDataGoesHere); + dev.flush(); + sock->flush(); // this actually sends data to network + \endcode + + This may change in the future versions of QuaZIP by implementing an + ugly hack: trying to cast the QIODevice using qobject_cast to known + flush()-supporting subclasses, and calling flush if the resulting + pointer is not zero. + */ + virtual bool flush(); + /// Opens the device. + /** + \param mode Neither QIODevice::ReadWrite nor QIODevice::Append are + not supported. + */ + virtual bool open(QIODevice::OpenMode mode); + /// Closes this device, but not the underlying one. + /** + The underlying QIODevice is not closed in case you want to write + something else to it. + */ + virtual void close(); + /// Returns the underlying device. + QIODevice *getIoDevice() const; + /// Returns true. + virtual bool isSequential() const; + /// Returns true iff the end of the compressed stream is reached. + virtual bool atEnd() const; + /// Returns the number of the bytes buffered. + virtual qint64 bytesAvailable() const; +protected: + /// Implementation of QIODevice::readData(). + virtual qint64 readData(char *data, qint64 maxSize); + /// Implementation of QIODevice::writeData(). + virtual qint64 writeData(const char *data, qint64 maxSize); +private: + QuaZIODevicePrivate *d; +}; +#endif // QUAZIP_QUAZIODEVICE_H diff --git a/quazip.cpp b/quazip.cpp new file mode 100644 index 0000000..a5bc44e --- /dev/null +++ b/quazip.cpp @@ -0,0 +1,795 @@ +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +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 +#include +#include + +#include "quazip.h" + +/// All the internal stuff for the QuaZip class. +/** + \internal + + This class keeps all the private stuff for the QuaZip class so it can + be changed without breaking binary compatibility, according to the + Pimpl idiom. + */ +class QuaZipPrivate { + friend class QuaZip; + private: + Q_DISABLE_COPY(QuaZipPrivate) + /// The pointer to the corresponding QuaZip instance. + QuaZip *q; + /// The codec for file names. + QTextCodec *fileNameCodec; + /// The codec for comments. + QTextCodec *commentCodec; + /// The archive file name. + QString zipName; + /// The device to access the archive. + QIODevice *ioDevice; + /// The global comment. + QString comment; + /// The open mode. + QuaZip::Mode mode; + union { + /// The internal handle for UNZIP modes. + unzFile unzFile_f; + /// The internal handle for ZIP modes. + zipFile zipFile_f; + }; + /// Whether a current file is set. + bool hasCurrentFile_f; + /// The last error. + int zipError; + /// Whether \ref QuaZip::setDataDescriptorWritingEnabled() "the data descriptor writing mode" is enabled. + bool dataDescriptorWritingEnabled; + /// The zip64 mode. + bool zip64; + /// The auto-close flag. + bool autoClose; + inline QTextCodec *getDefaultFileNameCodec() + { + if (defaultFileNameCodec == NULL) { + return QTextCodec::codecForLocale(); + } else { + return defaultFileNameCodec; + } + } + /// The constructor for the corresponding QuaZip constructor. + inline QuaZipPrivate(QuaZip *q): + q(q), + fileNameCodec(getDefaultFileNameCodec()), + commentCodec(QTextCodec::codecForLocale()), + ioDevice(NULL), + mode(QuaZip::mdNotOpen), + hasCurrentFile_f(false), + zipError(UNZ_OK), + dataDescriptorWritingEnabled(true), + zip64(false), + autoClose(true) + { + unzFile_f = NULL; + zipFile_f = NULL; + lastMappedDirectoryEntry.num_of_file = 0; + lastMappedDirectoryEntry.pos_in_zip_directory = 0; + } + /// The constructor for the corresponding QuaZip constructor. + inline QuaZipPrivate(QuaZip *q, const QString &zipName): + q(q), + fileNameCodec(getDefaultFileNameCodec()), + commentCodec(QTextCodec::codecForLocale()), + zipName(zipName), + ioDevice(NULL), + mode(QuaZip::mdNotOpen), + hasCurrentFile_f(false), + zipError(UNZ_OK), + dataDescriptorWritingEnabled(true), + zip64(false), + autoClose(true) + { + unzFile_f = NULL; + zipFile_f = NULL; + lastMappedDirectoryEntry.num_of_file = 0; + lastMappedDirectoryEntry.pos_in_zip_directory = 0; + } + /// The constructor for the corresponding QuaZip constructor. + inline QuaZipPrivate(QuaZip *q, QIODevice *ioDevice): + q(q), + fileNameCodec(getDefaultFileNameCodec()), + commentCodec(QTextCodec::codecForLocale()), + ioDevice(ioDevice), + mode(QuaZip::mdNotOpen), + hasCurrentFile_f(false), + zipError(UNZ_OK), + dataDescriptorWritingEnabled(true), + zip64(false), + autoClose(true) + { + unzFile_f = NULL; + zipFile_f = NULL; + lastMappedDirectoryEntry.num_of_file = 0; + lastMappedDirectoryEntry.pos_in_zip_directory = 0; + } + /// Returns either a list of file names or a list of QuaZipFileInfo. + template + bool getFileInfoList(QList *result) const; + + /// Stores map of filenames and file locations for unzipping + inline void clearDirectoryMap(); + inline void addCurrentFileToDirectoryMap(const QString &fileName); + bool goToFirstUnmappedFile(); + QHash directoryCaseSensitive; + QHash directoryCaseInsensitive; + unz64_file_pos lastMappedDirectoryEntry; + static QTextCodec *defaultFileNameCodec; +}; + +QTextCodec *QuaZipPrivate::defaultFileNameCodec = NULL; + +void QuaZipPrivate::clearDirectoryMap() +{ + directoryCaseInsensitive.clear(); + directoryCaseSensitive.clear(); + lastMappedDirectoryEntry.num_of_file = 0; + lastMappedDirectoryEntry.pos_in_zip_directory = 0; +} + +void QuaZipPrivate::addCurrentFileToDirectoryMap(const QString &fileName) +{ + if (!hasCurrentFile_f || fileName.isEmpty()) { + return; + } + // Adds current file to filename map as fileName + unz64_file_pos fileDirectoryPos; + unzGetFilePos64(unzFile_f, &fileDirectoryPos); + directoryCaseSensitive.insert(fileName, fileDirectoryPos); + // Only add lowercase to directory map if not already there + // ensures only map the first one seen + QString lower = fileName.toLower(); + if (!directoryCaseInsensitive.contains(lower)) + directoryCaseInsensitive.insert(lower, fileDirectoryPos); + // Mark last one + if (fileDirectoryPos.pos_in_zip_directory > lastMappedDirectoryEntry.pos_in_zip_directory) + lastMappedDirectoryEntry = fileDirectoryPos; +} + +bool QuaZipPrivate::goToFirstUnmappedFile() +{ + zipError = UNZ_OK; + if (mode != QuaZip::mdUnzip) { + qWarning("QuaZipPrivate::goToNextUnmappedFile(): ZIP is not open in mdUnzip mode"); + return false; + } + // If not mapped anything, go to beginning + if (lastMappedDirectoryEntry.pos_in_zip_directory == 0) { + unzGoToFirstFile(unzFile_f); + } else { + // Goto the last one mapped, plus one + unzGoToFilePos64(unzFile_f, &lastMappedDirectoryEntry); + unzGoToNextFile(unzFile_f); + } + hasCurrentFile_f=zipError==UNZ_OK; + if(zipError==UNZ_END_OF_LIST_OF_FILE) + zipError=UNZ_OK; + return hasCurrentFile_f; +} + +QuaZip::QuaZip(): + p(new QuaZipPrivate(this)) +{ +} + +QuaZip::QuaZip(const QString& zipName): + p(new QuaZipPrivate(this, zipName)) +{ +} + +QuaZip::QuaZip(QIODevice *ioDevice): + p(new QuaZipPrivate(this, ioDevice)) +{ +} + +QuaZip::~QuaZip() +{ + if(isOpen()) + close(); + delete p; +} + +bool QuaZip::open(Mode mode, zlib_filefunc_def* ioApi) +{ + p->zipError=UNZ_OK; + if(isOpen()) { + qWarning("QuaZip::open(): ZIP already opened"); + return false; + } + QIODevice *ioDevice = p->ioDevice; + if (ioDevice == NULL) { + if (p->zipName.isEmpty()) { + qWarning("QuaZip::open(): set either ZIP file name or IO device first"); + return false; + } else { + ioDevice = new QFile(p->zipName); + } + } + unsigned flags = 0; + switch(mode) { + case mdUnzip: + if (ioApi == NULL) { + if (p->autoClose) + flags |= UNZ_AUTO_CLOSE; + p->unzFile_f=unzOpenInternal(ioDevice, NULL, 1, flags); + } else { + // QuaZIP pre-zip64 compatibility mode + p->unzFile_f=unzOpen2(ioDevice, ioApi); + if (p->unzFile_f != NULL) { + if (p->autoClose) { + unzSetFlags(p->unzFile_f, UNZ_AUTO_CLOSE); + } else { + unzClearFlags(p->unzFile_f, UNZ_AUTO_CLOSE); + } + } + } + if(p->unzFile_f!=NULL) { + if (ioDevice->isSequential()) { + unzClose(p->unzFile_f); + if (!p->zipName.isEmpty()) + delete ioDevice; + qWarning("QuaZip::open(): " + "only mdCreate can be used with " + "sequential devices"); + return false; + } + p->mode=mode; + p->ioDevice = ioDevice; + return true; + } else { + p->zipError=UNZ_OPENERROR; + if (!p->zipName.isEmpty()) + delete ioDevice; + return false; + } + case mdCreate: + case mdAppend: + case mdAdd: + if (ioApi == NULL) { + if (p->autoClose) + flags |= ZIP_AUTO_CLOSE; + if (p->dataDescriptorWritingEnabled) + flags |= ZIP_WRITE_DATA_DESCRIPTOR; + p->zipFile_f=zipOpen3(ioDevice, + mode==mdCreate?APPEND_STATUS_CREATE: + mode==mdAppend?APPEND_STATUS_CREATEAFTER: + APPEND_STATUS_ADDINZIP, + NULL, NULL, flags); + } else { + // QuaZIP pre-zip64 compatibility mode + p->zipFile_f=zipOpen2(ioDevice, + mode==mdCreate?APPEND_STATUS_CREATE: + mode==mdAppend?APPEND_STATUS_CREATEAFTER: + APPEND_STATUS_ADDINZIP, + NULL, + ioApi); + if (p->zipFile_f != NULL) { + zipSetFlags(p->zipFile_f, flags); + } + } + if(p->zipFile_f!=NULL) { + if (ioDevice->isSequential()) { + if (mode != mdCreate) { + zipClose(p->zipFile_f, NULL); + qWarning("QuaZip::open(): " + "only mdCreate can be used with " + "sequential devices"); + if (!p->zipName.isEmpty()) + delete ioDevice; + return false; + } + zipSetFlags(p->zipFile_f, ZIP_SEQUENTIAL); + } + p->mode=mode; + p->ioDevice = ioDevice; + return true; + } else { + p->zipError=UNZ_OPENERROR; + if (!p->zipName.isEmpty()) + delete ioDevice; + return false; + } + default: + qWarning("QuaZip::open(): unknown mode: %d", (int)mode); + if (!p->zipName.isEmpty()) + delete ioDevice; + return false; + break; + } +} + +void QuaZip::close() +{ + p->zipError=UNZ_OK; + switch(p->mode) { + case mdNotOpen: + qWarning("QuaZip::close(): ZIP is not open"); + return; + case mdUnzip: + p->zipError=unzClose(p->unzFile_f); + break; + case mdCreate: + case mdAppend: + case mdAdd: + p->zipError=zipClose(p->zipFile_f, + p->comment.isNull() ? NULL + : p->commentCodec->fromUnicode(p->comment).constData()); + break; + default: + qWarning("QuaZip::close(): unknown mode: %d", (int)p->mode); + return; + } + // opened by name, need to delete the internal IO device + if (!p->zipName.isEmpty()) { + delete p->ioDevice; + p->ioDevice = NULL; + } + p->clearDirectoryMap(); + if(p->zipError==UNZ_OK) + p->mode=mdNotOpen; +} + +void QuaZip::setZipName(const QString& zipName) +{ + if(isOpen()) { + qWarning("QuaZip::setZipName(): ZIP is already open!"); + return; + } + p->zipName=zipName; + p->ioDevice = NULL; +} + +void QuaZip::setIoDevice(QIODevice *ioDevice) +{ + if(isOpen()) { + qWarning("QuaZip::setIoDevice(): ZIP is already open!"); + return; + } + p->ioDevice = ioDevice; + p->zipName = QString(); +} + +int QuaZip::getEntriesCount()const +{ + QuaZip *fakeThis=(QuaZip*)this; // non-const + fakeThis->p->zipError=UNZ_OK; + if(p->mode!=mdUnzip) { + qWarning("QuaZip::getEntriesCount(): ZIP is not open in mdUnzip mode"); + return -1; + } + unz_global_info64 globalInfo; + if((fakeThis->p->zipError=unzGetGlobalInfo64(p->unzFile_f, &globalInfo))!=UNZ_OK) + return p->zipError; + return (int)globalInfo.number_entry; +} + +QString QuaZip::getComment()const +{ + QuaZip *fakeThis=(QuaZip*)this; // non-const + fakeThis->p->zipError=UNZ_OK; + if(p->mode!=mdUnzip) { + qWarning("QuaZip::getComment(): ZIP is not open in mdUnzip mode"); + return QString(); + } + unz_global_info64 globalInfo; + QByteArray comment; + if((fakeThis->p->zipError=unzGetGlobalInfo64(p->unzFile_f, &globalInfo))!=UNZ_OK) + return QString(); + comment.resize(globalInfo.size_comment); + if((fakeThis->p->zipError=unzGetGlobalComment(p->unzFile_f, comment.data(), comment.size())) < 0) + return QString(); + fakeThis->p->zipError = UNZ_OK; + return p->commentCodec->toUnicode(comment); +} + +bool QuaZip::setCurrentFile(const QString& fileName, CaseSensitivity cs) +{ + p->zipError=UNZ_OK; + if(p->mode!=mdUnzip) { + qWarning("QuaZip::setCurrentFile(): ZIP is not open in mdUnzip mode"); + return false; + } + if(fileName.isEmpty()) { + p->hasCurrentFile_f=false; + return true; + } + // Unicode-aware reimplementation of the unzLocateFile function + if(p->unzFile_f==NULL) { + p->zipError=UNZ_PARAMERROR; + return false; + } + if(fileName.length()>MAX_FILE_NAME_LENGTH) { + p->zipError=UNZ_PARAMERROR; + return false; + } + // Find the file by name + bool sens = convertCaseSensitivity(cs) == Qt::CaseSensitive; + QString lower, current; + if(!sens) lower=fileName.toLower(); + p->hasCurrentFile_f=false; + + // Check the appropriate Map + unz64_file_pos fileDirPos; + fileDirPos.pos_in_zip_directory = 0; + if (sens) { + if (p->directoryCaseSensitive.contains(fileName)) + fileDirPos = p->directoryCaseSensitive.value(fileName); + } else { + if (p->directoryCaseInsensitive.contains(lower)) + fileDirPos = p->directoryCaseInsensitive.value(lower); + } + + if (fileDirPos.pos_in_zip_directory != 0) { + p->zipError = unzGoToFilePos64(p->unzFile_f, &fileDirPos); + p->hasCurrentFile_f = p->zipError == UNZ_OK; + } + + if (p->hasCurrentFile_f) + return p->hasCurrentFile_f; + + // Not mapped yet, start from where we have got to so far + for(bool more=p->goToFirstUnmappedFile(); more; more=goToNextFile()) { + current=getCurrentFileName(); + if(current.isEmpty()) return false; + if(sens) { + if(current==fileName) break; + } else { + if(current.toLower()==lower) break; + } + } + return p->hasCurrentFile_f; +} + +bool QuaZip::goToFirstFile() +{ + p->zipError=UNZ_OK; + if(p->mode!=mdUnzip) { + qWarning("QuaZip::goToFirstFile(): ZIP is not open in mdUnzip mode"); + return false; + } + p->zipError=unzGoToFirstFile(p->unzFile_f); + p->hasCurrentFile_f=p->zipError==UNZ_OK; + return p->hasCurrentFile_f; +} + +bool QuaZip::goToNextFile() +{ + p->zipError=UNZ_OK; + if(p->mode!=mdUnzip) { + qWarning("QuaZip::goToFirstFile(): ZIP is not open in mdUnzip mode"); + return false; + } + p->zipError=unzGoToNextFile(p->unzFile_f); + p->hasCurrentFile_f=p->zipError==UNZ_OK; + if(p->zipError==UNZ_END_OF_LIST_OF_FILE) + p->zipError=UNZ_OK; + return p->hasCurrentFile_f; +} + +bool QuaZip::getCurrentFileInfo(QuaZipFileInfo *info)const +{ + QuaZipFileInfo64 info64; + if (info == NULL) { // Very unlikely because of the overloads + return false; + } + if (getCurrentFileInfo(&info64)) { + info64.toQuaZipFileInfo(*info); + return true; + } else { + return false; + } +} + +bool QuaZip::getCurrentFileInfo(QuaZipFileInfo64 *info)const +{ + QuaZip *fakeThis=(QuaZip*)this; // non-const + fakeThis->p->zipError=UNZ_OK; + if(p->mode!=mdUnzip) { + qWarning("QuaZip::getCurrentFileInfo(): ZIP is not open in mdUnzip mode"); + return false; + } + unz_file_info64 info_z; + QByteArray fileName; + QByteArray extra; + QByteArray comment; + if(info==NULL) return false; + if(!isOpen()||!hasCurrentFile()) return false; + if((fakeThis->p->zipError=unzGetCurrentFileInfo64(p->unzFile_f, &info_z, NULL, 0, NULL, 0, NULL, 0))!=UNZ_OK) + return false; + fileName.resize(info_z.size_filename); + extra.resize(info_z.size_file_extra); + comment.resize(info_z.size_file_comment); + if((fakeThis->p->zipError=unzGetCurrentFileInfo64(p->unzFile_f, NULL, + fileName.data(), fileName.size(), + extra.data(), extra.size(), + comment.data(), comment.size()))!=UNZ_OK) + return false; + info->versionCreated=info_z.version; + info->versionNeeded=info_z.version_needed; + info->flags=info_z.flag; + info->method=info_z.compression_method; + info->crc=info_z.crc; + info->compressedSize=info_z.compressed_size; + info->uncompressedSize=info_z.uncompressed_size; + info->diskNumberStart=info_z.disk_num_start; + info->internalAttr=info_z.internal_fa; + info->externalAttr=info_z.external_fa; + info->name=p->fileNameCodec->toUnicode(fileName); + info->comment=p->commentCodec->toUnicode(comment); + info->extra=extra; + info->dateTime=QDateTime( + QDate(info_z.tmu_date.tm_year, info_z.tmu_date.tm_mon+1, info_z.tmu_date.tm_mday), + QTime(info_z.tmu_date.tm_hour, info_z.tmu_date.tm_min, info_z.tmu_date.tm_sec)); + // Add to directory map + p->addCurrentFileToDirectoryMap(info->name); + return true; +} + +QString QuaZip::getCurrentFileName()const +{ + QuaZip *fakeThis=(QuaZip*)this; // non-const + fakeThis->p->zipError=UNZ_OK; + if(p->mode!=mdUnzip) { + qWarning("QuaZip::getCurrentFileName(): ZIP is not open in mdUnzip mode"); + return QString(); + } + if(!isOpen()||!hasCurrentFile()) return QString(); + QByteArray fileName(MAX_FILE_NAME_LENGTH, 0); + if((fakeThis->p->zipError=unzGetCurrentFileInfo64(p->unzFile_f, NULL, fileName.data(), fileName.size(), + NULL, 0, NULL, 0))!=UNZ_OK) + return QString(); + QString result = p->fileNameCodec->toUnicode(fileName.constData()); + if (result.isEmpty()) + return result; + // Add to directory map + p->addCurrentFileToDirectoryMap(result); + return result; +} + +void QuaZip::setFileNameCodec(QTextCodec *fileNameCodec) +{ + p->fileNameCodec=fileNameCodec; +} + +void QuaZip::setFileNameCodec(const char *fileNameCodecName) +{ + p->fileNameCodec=QTextCodec::codecForName(fileNameCodecName); +} + +QTextCodec *QuaZip::getFileNameCodec()const +{ + return p->fileNameCodec; +} + +void QuaZip::setCommentCodec(QTextCodec *commentCodec) +{ + p->commentCodec=commentCodec; +} + +void QuaZip::setCommentCodec(const char *commentCodecName) +{ + p->commentCodec=QTextCodec::codecForName(commentCodecName); +} + +QTextCodec *QuaZip::getCommentCodec()const +{ + return p->commentCodec; +} + +QString QuaZip::getZipName() const +{ + return p->zipName; +} + +QIODevice *QuaZip::getIoDevice() const +{ + if (!p->zipName.isEmpty()) // opened by name, using an internal QIODevice + return NULL; + return p->ioDevice; +} + +QuaZip::Mode QuaZip::getMode()const +{ + return p->mode; +} + +bool QuaZip::isOpen()const +{ + return p->mode!=mdNotOpen; +} + +int QuaZip::getZipError() const +{ + return p->zipError; +} + +void QuaZip::setComment(const QString& comment) +{ + p->comment=comment; +} + +bool QuaZip::hasCurrentFile()const +{ + return p->hasCurrentFile_f; +} + +unzFile QuaZip::getUnzFile() +{ + return p->unzFile_f; +} + +zipFile QuaZip::getZipFile() +{ + return p->zipFile_f; +} + +void QuaZip::setDataDescriptorWritingEnabled(bool enabled) +{ + p->dataDescriptorWritingEnabled = enabled; +} + +bool QuaZip::isDataDescriptorWritingEnabled() const +{ + return p->dataDescriptorWritingEnabled; +} + +template +TFileInfo QuaZip_getFileInfo(QuaZip *zip, bool *ok); + +template<> +QuaZipFileInfo QuaZip_getFileInfo(QuaZip *zip, bool *ok) +{ + QuaZipFileInfo info; + *ok = zip->getCurrentFileInfo(&info); + return info; +} + +template<> +QuaZipFileInfo64 QuaZip_getFileInfo(QuaZip *zip, bool *ok) +{ + QuaZipFileInfo64 info; + *ok = zip->getCurrentFileInfo(&info); + return info; +} + +template<> +QString QuaZip_getFileInfo(QuaZip *zip, bool *ok) +{ + QString name = zip->getCurrentFileName(); + *ok = !name.isEmpty(); + return name; +} + +template +bool QuaZipPrivate::getFileInfoList(QList *result) const +{ + QuaZipPrivate *fakeThis=const_cast(this); + fakeThis->zipError=UNZ_OK; + if (mode!=QuaZip::mdUnzip) { + qWarning("QuaZip::getFileNameList/getFileInfoList(): " + "ZIP is not open in mdUnzip mode"); + return false; + } + QString currentFile; + if (q->hasCurrentFile()) { + currentFile = q->getCurrentFileName(); + } + if (q->goToFirstFile()) { + do { + bool ok; + result->append(QuaZip_getFileInfo(q, &ok)); + if (!ok) + return false; + } while (q->goToNextFile()); + } + if (zipError != UNZ_OK) + return false; + if (currentFile.isEmpty()) { + if (!q->goToFirstFile()) + return false; + } else { + if (!q->setCurrentFile(currentFile)) + return false; + } + return true; +} + +QStringList QuaZip::getFileNameList() const +{ + QStringList list; + if (p->getFileInfoList(&list)) + return list; + else + return QStringList(); +} + +QList QuaZip::getFileInfoList() const +{ + QList list; + if (p->getFileInfoList(&list)) + return list; + else + return QList(); +} + +QList QuaZip::getFileInfoList64() const +{ + QList list; + if (p->getFileInfoList(&list)) + return list; + else + return QList(); +} + +Qt::CaseSensitivity QuaZip::convertCaseSensitivity(QuaZip::CaseSensitivity cs) +{ + if (cs == csDefault) { +#ifdef Q_OS_WIN + return Qt::CaseInsensitive; +#else + return Qt::CaseSensitive; +#endif + } else { + return cs == csSensitive ? Qt::CaseSensitive : Qt::CaseInsensitive; + } +} + +void QuaZip::setDefaultFileNameCodec(QTextCodec *codec) +{ + QuaZipPrivate::defaultFileNameCodec = codec; +} + +void QuaZip::setDefaultFileNameCodec(const char *codecName) +{ + setDefaultFileNameCodec(QTextCodec::codecForName(codecName)); +} + +void QuaZip::setZip64Enabled(bool zip64) +{ + p->zip64 = zip64; +} + +bool QuaZip::isZip64Enabled() const +{ + return p->zip64; +} + +bool QuaZip::isAutoClose() const +{ + return p->autoClose; +} + +void QuaZip::setAutoClose(bool autoClose) const +{ + p->autoClose = autoClose; +} diff --git a/quazip.h b/quazip.h new file mode 100644 index 0000000..ae2c8f4 --- /dev/null +++ b/quazip.h @@ -0,0 +1,571 @@ +#ifndef QUA_ZIP_H +#define QUA_ZIP_H + +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +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 +#include +#include + +#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 + * 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. + }; + /// Returns the actual case sensitivity for the specified QuaZIP one. + /** + \param cs The value to convert. + \returns If CaseSensitivity::csDefault, then returns the default + file name case sensitivity for the platform. Otherwise, just + returns the appropriate value from the Qt::CaseSensitivity enum. + */ + static Qt::CaseSensitivity convertCaseSensitivity( + CaseSensitivity cs); + 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 QuaZIP checks if the + * open mode is compatible to the mode needed for the requested operation. + * If necessary, seeking is performed to position the device properly. + * + * \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 non-zip64 archives). + * + * \note If the zip64 support is needed, the ioApi argument \em must be NULL + * because due to the backwards compatibility issues it can be used to + * provide a 32-bit API only. + * + * \note If the \ref QuaZip::setAutoClose() "no-auto-close" feature is used, + * then the \a ioApi argument \em should be NULL because the old API + * doesn't support the 'fake close' operation, causing slight memory leaks + * and other possible troubles (like closing the output device in case + * when an error occurs during opening). + * + * 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. + * + * If the file was opened by name, then the underlying QIODevice is closed + * and deleted. + * + * If the underlying QIODevice was set explicitly using setIoDevice() or + * the appropriate constructor, then it is closed if the auto-close flag + * is set (which it is by default). Call setAutoClose() to clear the + * auto-close flag if this behavior is undesirable. + * + * Since Qt 5.1, the QSaveFile was introduced. It breaks the QIODevice API + * by making close() private and crashing the application if it is called + * from the base class where it is public. It is an excellent example + * of poor design that illustrates why you should never ever break + * an is-a relationship between the base class and a subclass. QuaZIP + * works around this bug by checking if the QIODevice is an instance + * of QSaveFile, using qobject_cast<>, and if it is, calls + * QSaveFile::commit() instead of close(). It is a really ugly hack, + * but at least it makes your programs work instead of crashing. Note that + * if the auto-close flag is cleared, then this is a non-issue, and + * commit() isn't called. + */ + 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 "" comment in the QuaZip::mdAdd mode. + * A null comment is the default and it means "don't change + * the comment". 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. + * + * In both cases getZipError() returns \c UNZ_OK since there + * is no ZIP/UNZIP API call. + * + * This overload doesn't support zip64, but will work OK on zip64 archives + * except that if one of the sizes (compressed or uncompressed) is greater + * than 0xFFFFFFFFu, it will be set to exactly 0xFFFFFFFFu. + * + * \sa getCurrentFileInfo(QuaZipFileInfo64* info)const + * \sa QuaZipFileInfo64::toQuaZipFileInfo(QuaZipFileInfo&)const + **/ + bool getCurrentFileInfo(QuaZipFileInfo* info)const; + /// Retrieves information about the current file. + /** \overload + * + * This function supports zip64. If the archive doesn't use zip64, it is + * completely equivalent to getCurrentFileInfo(QuaZipFileInfo* info) + * except for the argument type. + * + * \sa + **/ + bool getCurrentFileInfo(QuaZipFileInfo64* 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. + + Note that if the ZIP archive is written into a QIODevice for which + QIODevice::isSequential() returns \c true, then the data descriptor + is mandatory and will be written even if this flag is set to false. + + \param enabled If \c true, enable local descriptor writing, + disable it otherwise. + + \sa QuaZipFile::isDataDescriptorWritingEnabled() + */ + 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). + + This function doesn't support zip64, but will still work with zip64 + archives, converting results using QuaZipFileInfo64::toQuaZipFileInfo(). + If all file sizes are below 4 GB, it will work just fine. + + \sa getFileNameList() + \sa getFileInfoList64() + */ + QList getFileInfoList() const; + /// Returns information list about all files inside the archive. + /** + \overload + + This function supports zip64. + + \sa getFileNameList() + \sa getFileInfoList() + */ + QList getFileInfoList64() const; + /// Enables the zip64 mode. + /** + * @param zip64 If \c true, the zip64 mode is enabled, disabled otherwise. + * + * Once this is enabled, all new files (until the mode is disabled again) + * will be created in the zip64 mode, thus enabling the ability to write + * files larger than 4 GB. By default, the zip64 mode is off due to + * compatibility reasons. + * + * Note that this does not affect the ability to read zip64 archives in any + * way. + * + * \sa isZip64Enabled() + */ + void setZip64Enabled(bool zip64); + /// Returns whether the zip64 mode is enabled. + /** + * @return \c true if and only if the zip64 mode is enabled. + * + * \sa setZip64Enabled() + */ + bool isZip64Enabled() const; + /// Returns the auto-close flag. + /** + @sa setAutoClose() + */ + bool isAutoClose() const; + /// Sets or unsets the auto-close flag. + /** + By default, QuaZIP opens the underlying QIODevice when open() is called, + and closes it when close() is called. In some cases, when the device + is set explicitly using setIoDevice(), it may be desirable to + leave the device open. If the auto-close flag is unset using this method, + then the device isn't closed automatically if it was set explicitly. + + If it is needed to clear this flag, it is recommended to do so before + opening the archive because otherwise QuaZIP may close the device + during the open() call if an error is encountered after the device + is opened. + + If the device was not set explicitly, but rather the setZipName() or + the appropriate constructor was used to set the ZIP file name instead, + then the auto-close flag has no effect, and the internal device + is closed nevertheless because there is no other way to close it. + + @sa isAutoClose() + @sa setIoDevice() + */ + void setAutoClose(bool autoClose) const; + /// Sets the default file name codec to use. + /** + * The default codec is used by the constructors, so calling this function + * won't affect the QuaZip instances already created at that moment. + * + * The codec specified here can be overriden by calling setFileNameCodec(). + * If neither function is called, QTextCodec::codecForLocale() will be used + * to decode or encode file names. Use this function with caution if + * the application uses other libraries that depend on QuaZIP. Those + * libraries can either call this function by themselves, thus overriding + * your setting or can rely on the default encoding, thus failing + * mysteriously if you change it. For these reasons, it isn't recommended + * to use this function if you are developing a library, not an application. + * Instead, ask your library users to call it in case they need specific + * encoding. + * + * In most cases, using setFileNameCodec() instead is the right choice. + * However, if you depend on third-party code that uses QuaZIP, then the + * reasons stated above can actually become a reason to use this function + * in case the third-party code in question fails because it doesn't + * understand the encoding you need and doesn't provide a way to specify it. + * This applies to the JlCompress class as well, as it was contributed and + * doesn't support explicit encoding parameters. + * + * In short: use setFileNameCodec() when you can, resort to + * setDefaultFileNameCodec() when you don't have access to the QuaZip + * instance. + * + * @param codec The codec to use by default. If NULL, resets to default. + */ + static void setDefaultFileNameCodec(QTextCodec *codec); + /** + * @overload + * Equivalent to calling + * setDefltFileNameCodec(QTextCodec::codecForName(codecName)). + */ + static void setDefaultFileNameCodec(const char *codecName); +}; + +#endif diff --git a/quazip_global.h b/quazip_global.h new file mode 100644 index 0000000..7e3798a --- /dev/null +++ b/quazip_global.h @@ -0,0 +1,59 @@ +#ifndef QUAZIP_GLOBAL_H +#define QUAZIP_GLOBAL_H + +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include + +/** + This is automatically defined when building a static library, but when + including QuaZip sources directly into a project, QUAZIP_STATIC should + be defined explicitly to avoid possible troubles with unnecessary + importing/exporting. + */ +#ifdef QUAZIP_STATIC +#define QUAZIP_EXPORT +#else +/** + * When building a DLL with MSVC, QUAZIP_BUILD must be defined. + * qglobal.h takes care of defining Q_DECL_* correctly for msvc/gcc. + */ +#if defined(QUAZIP_BUILD) + #define QUAZIP_EXPORT Q_DECL_EXPORT +#else + #define QUAZIP_EXPORT Q_DECL_IMPORT +#endif +#endif // QUAZIP_STATIC + +#ifdef __GNUC__ +#define UNUSED __attribute__((__unused__)) +#else +#define UNUSED +#endif + +#define QUAZIP_EXTRA_NTFS_MAGIC 0x000Au +#define QUAZIP_EXTRA_NTFS_TIME_MAGIC 0x0001u + +#endif // QUAZIP_GLOBAL_H diff --git a/quazipdir.cpp b/quazipdir.cpp new file mode 100644 index 0000000..cd4f607 --- /dev/null +++ b/quazipdir.cpp @@ -0,0 +1,567 @@ +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include "quazipdir.h" + +#include +#include + +/// \cond internal +class QuaZipDirPrivate: public QSharedData { + friend class QuaZipDir; +private: + QuaZipDirPrivate(QuaZip *zip, const QString &dir = QString()): + zip(zip), dir(dir), caseSensitivity(QuaZip::csDefault), + filter(QDir::NoFilter), sorting(QDir::NoSort) {} + QuaZip *zip; + QString dir; + QuaZip::CaseSensitivity caseSensitivity; + QDir::Filters filter; + QStringList nameFilters; + QDir::SortFlags sorting; + template + bool entryInfoList(QStringList nameFilters, QDir::Filters filter, + QDir::SortFlags sort, TFileInfoList &result) const; + inline QString simplePath() const {return QDir::cleanPath(dir);} +}; +/// \endcond + +QuaZipDir::QuaZipDir(const QuaZipDir &that): + d(that.d) +{ +} + +QuaZipDir::QuaZipDir(QuaZip *zip, const QString &dir): + d(new QuaZipDirPrivate(zip, dir)) +{ + if (d->dir.startsWith('/')) + d->dir = d->dir.mid(1); +} + +QuaZipDir::~QuaZipDir() +{ +} + +bool QuaZipDir::operator==(const QuaZipDir &that) +{ + return d->zip == that.d->zip && d->dir == that.d->dir; +} + +QuaZipDir& QuaZipDir::operator=(const QuaZipDir &that) +{ + this->d = that.d; + return *this; +} + +QString QuaZipDir::operator[](int pos) const +{ + return entryList().at(pos); +} + +QuaZip::CaseSensitivity QuaZipDir::caseSensitivity() const +{ + return d->caseSensitivity; +} + +bool QuaZipDir::cd(const QString &directoryName) +{ + if (directoryName == "/") { + d->dir = ""; + return true; + } + QString dirName = directoryName; + if (dirName.endsWith('/')) + dirName.chop(1); + if (dirName.contains('/')) { + QuaZipDir dir(*this); + if (dirName.startsWith('/')) { +#ifdef QUAZIP_QUAZIPDIR_DEBUG + qDebug("QuaZipDir::cd(%s): going to /", + dirName.toUtf8().constData()); +#endif + if (!dir.cd("/")) + return false; + } + QStringList path = dirName.split('/', QString::SkipEmptyParts); + for (QStringList::const_iterator i = path.constBegin(); + i != path.end(); + ++i) { + const QString &step = *i; +#ifdef QUAZIP_QUAZIPDIR_DEBUG + qDebug("QuaZipDir::cd(%s): going to %s", + dirName.toUtf8().constData(), + step.toUtf8().constData()); +#endif + if (!dir.cd(step)) + return false; + } + d->dir = dir.path(); + return true; + } else { // no '/' + if (dirName == ".") { + return true; + } else if (dirName == "..") { + if (isRoot()) { + return false; + } else { + int slashPos = d->dir.lastIndexOf('/'); + if (slashPos == -1) { + d->dir = ""; + } else { + d->dir = d->dir.left(slashPos); + } + return true; + } + } else { // a simple subdirectory + if (exists(dirName)) { + if (isRoot()) + d->dir = dirName; + else + d->dir += "/" + dirName; + return true; + } else { + return false; + } + } + } +} + +bool QuaZipDir::cdUp() +{ + return cd(".."); +} + +uint QuaZipDir::count() const +{ + return entryList().count(); +} + +QString QuaZipDir::dirName() const +{ + return QDir(d->dir).dirName(); +} + +QuaZipFileInfo64 QuaZipDir_getFileInfo(QuaZip *zip, bool *ok, + const QString &relativeName, + bool isReal) +{ + QuaZipFileInfo64 info; + if (isReal) { + *ok = zip->getCurrentFileInfo(&info); + } else { + *ok = true; + info.compressedSize = 0; + info.crc = 0; + info.diskNumberStart = 0; + info.externalAttr = 0; + info.flags = 0; + info.internalAttr = 0; + info.method = 0; + info.uncompressedSize = 0; + info.versionCreated = info.versionNeeded = 0; + } + info.name = relativeName; + return info; +} + +static void QuaZipDir_convertInfoList(const QList &from, + QList &to) +{ + to = from; +} + +static void QuaZipDir_convertInfoList(const QList &from, + QStringList &to) +{ + to.clear(); + for (QList::const_iterator i = from.constBegin(); + i != from.constEnd(); + ++i) { + to.append(i->name); + } +} + +static void QuaZipDir_convertInfoList(const QList &from, + QList &to) +{ + to.clear(); + for (QList::const_iterator i = from.constBegin(); + i != from.constEnd(); + ++i) { + QuaZipFileInfo info32; + i->toQuaZipFileInfo(info32); + to.append(info32); + } +} + +/// \cond internal +/** + An utility class to restore the current file. + */ +class QuaZipDirRestoreCurrent { +public: + inline QuaZipDirRestoreCurrent(QuaZip *zip): + zip(zip), currentFile(zip->getCurrentFileName()) {} + inline ~QuaZipDirRestoreCurrent() + { + zip->setCurrentFile(currentFile); + } +private: + QuaZip *zip; + QString currentFile; +}; +/// \endcond + +/// \cond internal +class QuaZipDirComparator +{ + private: + QDir::SortFlags sort; + static QString getExtension(const QString &name); + int compareStrings(const QString &string1, const QString &string2); + public: + inline QuaZipDirComparator(QDir::SortFlags sort): sort(sort) {} + bool operator()(const QuaZipFileInfo64 &info1, const QuaZipFileInfo64 &info2); +}; + +QString QuaZipDirComparator::getExtension(const QString &name) +{ + if (name.endsWith('.') || name.indexOf('.', 1) == -1) { + return ""; + } else { + return name.mid(name.lastIndexOf('.') + 1); + } + +} + +int QuaZipDirComparator::compareStrings(const QString &string1, + const QString &string2) +{ + if (sort & QDir::LocaleAware) { + if (sort & QDir::IgnoreCase) { + return string1.toLower().localeAwareCompare(string2.toLower()); + } else { + return string1.localeAwareCompare(string2); + } + } else { + return string1.compare(string2, (sort & QDir::IgnoreCase) + ? Qt::CaseInsensitive : Qt::CaseSensitive); + } +} + +bool QuaZipDirComparator::operator()(const QuaZipFileInfo64 &info1, + const QuaZipFileInfo64 &info2) +{ + QDir::SortFlags order = sort + & (QDir::Name | QDir::Time | QDir::Size | QDir::Type); + if ((sort & QDir::DirsFirst) == QDir::DirsFirst + || (sort & QDir::DirsLast) == QDir::DirsLast) { + if (info1.name.endsWith('/') && !info2.name.endsWith('/')) + return (sort & QDir::DirsFirst) == QDir::DirsFirst; + else if (!info1.name.endsWith('/') && info2.name.endsWith('/')) + return (sort & QDir::DirsLast) == QDir::DirsLast; + } + bool result; + int extDiff; + switch (order) { + case QDir::Name: + result = compareStrings(info1.name, info2.name) < 0; + break; + case QDir::Type: + extDiff = compareStrings(getExtension(info1.name), + getExtension(info2.name)); + if (extDiff == 0) { + result = compareStrings(info1.name, info2.name) < 0; + } else { + result = extDiff < 0; + } + break; + case QDir::Size: + if (info1.uncompressedSize == info2.uncompressedSize) { + result = compareStrings(info1.name, info2.name) < 0; + } else { + result = info1.uncompressedSize < info2.uncompressedSize; + } + break; + case QDir::Time: + if (info1.dateTime == info2.dateTime) { + result = compareStrings(info1.name, info2.name) < 0; + } else { + result = info1.dateTime < info2.dateTime; + } + break; + default: + qWarning("QuaZipDirComparator(): Invalid sort mode 0x%2X", + static_cast(sort)); + return false; + } + return (sort & QDir::Reversed) ? !result : result; +} + +template +bool QuaZipDirPrivate::entryInfoList(QStringList nameFilters, + QDir::Filters filter, QDir::SortFlags sort, TFileInfoList &result) const +{ + QString basePath = simplePath(); + if (!basePath.isEmpty()) + basePath += "/"; + int baseLength = basePath.length(); + result.clear(); + QuaZipDirRestoreCurrent saveCurrent(zip); + if (!zip->goToFirstFile()) { + return zip->getZipError() == UNZ_OK; + } + QDir::Filters fltr = filter; + if (fltr == QDir::NoFilter) + fltr = this->filter; + if (fltr == QDir::NoFilter) + fltr = QDir::AllEntries; + QStringList nmfltr = nameFilters; + if (nmfltr.isEmpty()) + nmfltr = this->nameFilters; + QSet dirsFound; + QList list; + do { + QString name = zip->getCurrentFileName(); + if (!name.startsWith(basePath)) + continue; + QString relativeName = name.mid(baseLength); + if (relativeName.isEmpty()) + continue; + bool isDir = false; + bool isReal = true; + if (relativeName.contains('/')) { + int indexOfSlash = relativeName.indexOf('/'); + // something like "subdir/" + isReal = indexOfSlash == relativeName.length() - 1; + relativeName = relativeName.left(indexOfSlash + 1); + if (dirsFound.contains(relativeName)) + continue; + isDir = true; + } + dirsFound.insert(relativeName); + if ((fltr & QDir::Dirs) == 0 && isDir) + continue; + if ((fltr & QDir::Files) == 0 && !isDir) + continue; + if (!nmfltr.isEmpty() && !QDir::match(nmfltr, relativeName)) + continue; + bool ok; + QuaZipFileInfo64 info = QuaZipDir_getFileInfo(zip, &ok, relativeName, + isReal); + if (!ok) { + return false; + } + list.append(info); + } while (zip->goToNextFile()); + QDir::SortFlags srt = sort; + if (srt == QDir::NoSort) + srt = sorting; +#ifdef QUAZIP_QUAZIPDIR_DEBUG + qDebug("QuaZipDirPrivate::entryInfoList(): before sort:"); + foreach (QuaZipFileInfo64 info, list) { + qDebug("%s\t%s", info.name.toUtf8().constData(), + info.dateTime.toString(Qt::ISODate).toUtf8().constData()); + } +#endif + if (srt != QDir::NoSort && (srt & QDir::Unsorted) != QDir::Unsorted) { + if (QuaZip::convertCaseSensitivity(caseSensitivity) + == Qt::CaseInsensitive) + srt |= QDir::IgnoreCase; + QuaZipDirComparator lessThan(srt); + std::sort(list.begin(), list.end(), lessThan); + } + QuaZipDir_convertInfoList(list, result); + return true; +} + +/// \endcond + +QList QuaZipDir::entryInfoList(const QStringList &nameFilters, + QDir::Filters filters, QDir::SortFlags sort) const +{ + QList result; + if (d->entryInfoList(nameFilters, filters, sort, result)) + return result; + else + return QList(); +} + +QList QuaZipDir::entryInfoList(QDir::Filters filters, + QDir::SortFlags sort) const +{ + return entryInfoList(QStringList(), filters, sort); +} + +QList QuaZipDir::entryInfoList64(const QStringList &nameFilters, + QDir::Filters filters, QDir::SortFlags sort) const +{ + QList result; + if (d->entryInfoList(nameFilters, filters, sort, result)) + return result; + else + return QList(); +} + +QList QuaZipDir::entryInfoList64(QDir::Filters filters, + QDir::SortFlags sort) const +{ + return entryInfoList64(QStringList(), filters, sort); +} + +QStringList QuaZipDir::entryList(const QStringList &nameFilters, + QDir::Filters filters, QDir::SortFlags sort) const +{ + QStringList result; + if (d->entryInfoList(nameFilters, filters, sort, result)) + return result; + else + return QStringList(); +} + +QStringList QuaZipDir::entryList(QDir::Filters filters, + QDir::SortFlags sort) const +{ + return entryList(QStringList(), filters, sort); +} + +bool QuaZipDir::exists(const QString &filePath) const +{ + if (filePath == "/" || filePath.isEmpty()) + return true; + QString fileName = filePath; + if (fileName.endsWith('/')) + fileName.chop(1); + if (fileName.contains('/')) { + QFileInfo fileInfo(fileName); +#ifdef QUAZIP_QUAZIPDIR_DEBUG + qDebug("QuaZipDir::exists(): fileName=%s, fileInfo.fileName()=%s, " + "fileInfo.path()=%s", fileName.toUtf8().constData(), + fileInfo.fileName().toUtf8().constData(), + fileInfo.path().toUtf8().constData()); +#endif + QuaZipDir dir(*this); + return dir.cd(fileInfo.path()) && dir.exists(fileInfo.fileName()); + } else { + if (fileName == "..") { + return !isRoot(); + } else if (fileName == ".") { + return true; + } else { + QStringList entries = entryList(QDir::AllEntries, QDir::NoSort); +#ifdef QUAZIP_QUAZIPDIR_DEBUG + qDebug("QuaZipDir::exists(): looking for %s", + fileName.toUtf8().constData()); + for (QStringList::const_iterator i = entries.constBegin(); + i != entries.constEnd(); + ++i) { + qDebug("QuaZipDir::exists(): entry: %s", + i->toUtf8().constData()); + } +#endif + Qt::CaseSensitivity cs = QuaZip::convertCaseSensitivity( + d->caseSensitivity); + if (filePath.endsWith('/')) { + return entries.contains(filePath, cs); + } else { + return entries.contains(fileName, cs) + || entries.contains(fileName + "/", cs); + } + } + } +} + +bool QuaZipDir::exists() const +{ + return QuaZipDir(d->zip).exists(d->dir); +} + +QString QuaZipDir::filePath(const QString &fileName) const +{ + return QDir(d->dir).filePath(fileName); +} + +QDir::Filters QuaZipDir::filter() +{ + return d->filter; +} + +bool QuaZipDir::isRoot() const +{ + return d->simplePath().isEmpty(); +} + +QStringList QuaZipDir::nameFilters() const +{ + return d->nameFilters; +} + +QString QuaZipDir::path() const +{ + return d->dir; +} + +QString QuaZipDir::relativeFilePath(const QString &fileName) const +{ + return QDir("/" + d->dir).relativeFilePath(fileName); +} + +void QuaZipDir::setCaseSensitivity(QuaZip::CaseSensitivity caseSensitivity) +{ + d->caseSensitivity = caseSensitivity; +} + +void QuaZipDir::setFilter(QDir::Filters filters) +{ + d->filter = filters; +} + +void QuaZipDir::setNameFilters(const QStringList &nameFilters) +{ + d->nameFilters = nameFilters; +} + +void QuaZipDir::setPath(const QString &path) +{ + QString newDir = path; + if (newDir == "/") { + d->dir = ""; + } else { + if (newDir.endsWith('/')) + newDir.chop(1); + if (newDir.startsWith('/')) + newDir = newDir.mid(1); + d->dir = newDir; + } +} + +void QuaZipDir::setSorting(QDir::SortFlags sort) +{ + d->sorting = sort; +} + +QDir::SortFlags QuaZipDir::sorting() const +{ + return d->sorting; +} diff --git a/quazipdir.h b/quazipdir.h new file mode 100644 index 0000000..4626b17 --- /dev/null +++ b/quazipdir.h @@ -0,0 +1,223 @@ +#ifndef QUAZIP_QUAZIPDIR_H +#define QUAZIP_QUAZIPDIR_H + +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +class QuaZipDirPrivate; + +#include "quazip.h" +#include "quazipfileinfo.h" +#include +#include +#include + +/// Provides ZIP archive navigation. +/** +* This class is modelled after QDir, and is designed to provide similar +* features for ZIP archives. +* +* The only significant difference from QDir is that the root path is not +* '/', but an empty string since that's how the file paths are stored in +* the archive. However, QuaZipDir understands the paths starting with +* '/'. It is important in a few places: +* +* - In the cd() function. +* - In the constructor. +* - In the exists() function. +* - In the relativePath() function. +* +* Note that since ZIP uses '/' on all platforms, the '\' separator is +* not supported. +*/ +class QUAZIP_EXPORT QuaZipDir { +private: + QSharedDataPointer d; +public: + /// The copy constructor. + QuaZipDir(const QuaZipDir &that); + /// Constructs a QuaZipDir instance pointing to the specified directory. + /** + If \a dir is not specified, points to the root of the archive. + The same happens if the \a dir is "/". + */ + QuaZipDir(QuaZip *zip, const QString &dir = QString()); + /// Destructor. + ~QuaZipDir(); + /// The assignment operator. + bool operator==(const QuaZipDir &that); + /// operator!= + /** + \return \c true if either this and \a that use different QuaZip + instances or if they point to different directories. + */ + inline bool operator!=(const QuaZipDir &that) {return !operator==(that);} + /// operator== + /** + \return \c true if both this and \a that use the same QuaZip + instance and point to the same directory. + */ + QuaZipDir& operator=(const QuaZipDir &that); + /// Returns the name of the entry at the specified position. + QString operator[](int pos) const; + /// Returns the current case sensitivity mode. + QuaZip::CaseSensitivity caseSensitivity() const; + /// Changes the 'current' directory. + /** + * If the path starts with '/', it is interpreted as an absolute + * path from the root of the archive. Otherwise, it is interpreted + * as a path relative to the current directory as was set by the + * previous cd() or the constructor. + * + * Note that the subsequent path() call will not return a path + * starting with '/' in all cases. + */ + bool cd(const QString &dirName); + /// Goes up. + bool cdUp(); + /// Returns the number of entries in the directory. + uint count() const; + /// Returns the current directory name. + /** + The name doesn't include the path. + */ + QString dirName() const; + /// Returns the list of the entries in the directory. + /** + \param nameFilters The list of file patterns to list, uses the same + syntax as QDir. + \param filters The entry type filters, only Files and Dirs are + accepted. + \param sort Sorting mode. + */ + QList entryInfoList(const QStringList &nameFilters, + QDir::Filters filters = QDir::NoFilter, + QDir::SortFlags sort = QDir::NoSort) const; + /// Returns the list of the entries in the directory. + /** + \overload + + The same as entryInfoList(QStringList(), filters, sort). + */ + QList entryInfoList(QDir::Filters filters = QDir::NoFilter, + QDir::SortFlags sort = QDir::NoSort) const; + /// Returns the list of the entries in the directory with zip64 support. + /** + \param nameFilters The list of file patterns to list, uses the same + syntax as QDir. + \param filters The entry type filters, only Files and Dirs are + accepted. + \param sort Sorting mode. + */ + QList entryInfoList64(const QStringList &nameFilters, + QDir::Filters filters = QDir::NoFilter, + QDir::SortFlags sort = QDir::NoSort) const; + /// Returns the list of the entries in the directory with zip64 support. + /** + \overload + + The same as entryInfoList64(QStringList(), filters, sort). + */ + QList entryInfoList64(QDir::Filters filters = QDir::NoFilter, + QDir::SortFlags sort = QDir::NoSort) const; + /// Returns the list of the entry names in the directory. + /** + The same as entryInfoList(nameFilters, filters, sort), but only + returns entry names. + */ + QStringList entryList(const QStringList &nameFilters, + QDir::Filters filters = QDir::NoFilter, + QDir::SortFlags sort = QDir::NoSort) const; + /// Returns the list of the entry names in the directory. + /** + \overload + + The same as entryList(QStringList(), filters, sort). + */ + QStringList entryList(QDir::Filters filters = QDir::NoFilter, + QDir::SortFlags sort = QDir::NoSort) const; + /// Returns \c true if the entry with the specified name exists. + /** + The ".." is considered to exist if the current directory + is not root. The "." and "/" are considered to + always exist. Paths starting with "/" are relative to + the archive root, other paths are relative to the current dir. + */ + bool exists(const QString &fileName) const; + /// Return \c true if the directory pointed by this QuaZipDir exists. + bool exists() const; + /// Returns the full path to the specified file. + /** + Doesn't check if the file actually exists. + */ + QString filePath(const QString &fileName) const; + /// Returns the default filter. + QDir::Filters filter(); + /// Returns if the QuaZipDir points to the root of the archive. + /** + Not that the root path is the empty string, not '/'. + */ + bool isRoot() const; + /// Return the default name filter. + QStringList nameFilters() const; + /// Returns the path to the current dir. + /** + The path never starts with '/', and the root path is an empty + string. + */ + QString path() const; + /// Returns the path to the specified file relative to the current dir. + /** + * This function is mostly useless, provided only for the sake of + * completeness. + * + * @param fileName The path to the file, should start with "/" + * if relative to the archive root. + * @return Path relative to the current dir. + */ + QString relativeFilePath(const QString &fileName) const; + /// Sets the default case sensitivity mode. + void setCaseSensitivity(QuaZip::CaseSensitivity caseSensitivity); + /// Sets the default filter. + void setFilter(QDir::Filters filters); + /// Sets the default name filter. + void setNameFilters(const QStringList &nameFilters); + /// Goes to the specified path. + /** + The difference from cd() is that this function never checks if the + path actually exists and doesn't use relative paths, so it's + possible to go to the root directory with setPath(""). + + Note that this function still chops the trailing and/or leading + '/' and treats a single '/' as the root path (path() will still + return an empty string). + */ + void setPath(const QString &path); + /// Sets the default sorting mode. + void setSorting(QDir::SortFlags sort); + /// Returns the default sorting mode. + QDir::SortFlags sorting() const; +}; + +#endif // QUAZIP_QUAZIPDIR_H diff --git a/quazipfile.cpp b/quazipfile.cpp new file mode 100644 index 0000000..3ce895a --- /dev/null +++ b/quazipfile.cpp @@ -0,0 +1,531 @@ +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +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 "quazipfile.h" + +using namespace std; + +/// The implementation class for QuaZip. +/** +\internal + +This class contains all the private stuff for the QuaZipFile class, thus +allowing to preserve binary compatibility between releases, the +technique known as the Pimpl (private implementation) idiom. +*/ +class QuaZipFilePrivate { + friend class QuaZipFile; + private: + Q_DISABLE_COPY(QuaZipFilePrivate) + /// The pointer to the associated QuaZipFile instance. + QuaZipFile *q; + /// The QuaZip object to work with. + QuaZip *zip; + /// The file name. + QString fileName; + /// Case sensitivity mode. + QuaZip::CaseSensitivity caseSensitivity; + /// Whether this file is opened in the raw mode. + bool raw; + /// Write position to keep track of. + /** + QIODevice::pos() is broken for non-seekable devices, so we need + our own position. + */ + qint64 writePos; + /// Uncompressed size to write along with a raw file. + quint64 uncompressedSize; + /// CRC to write along with a raw file. + quint32 crc; + /// Whether \ref zip points to an internal QuaZip instance. + /** + This is true if the archive was opened by name, rather than by + supplying an existing QuaZip instance. + */ + bool internal; + /// The last error. + int zipError; + /// Resets \ref zipError. + inline void resetZipError() const {setZipError(UNZ_OK);} + /// Sets the zip error. + /** + This function is marked as const although it changes one field. + This allows to call it from const functions that don't change + anything by themselves. + */ + void setZipError(int zipError) const; + /// The constructor for the corresponding QuaZipFile constructor. + inline QuaZipFilePrivate(QuaZipFile *q): + q(q), + zip(NULL), + caseSensitivity(QuaZip::csDefault), + raw(false), + writePos(0), + uncompressedSize(0), + crc(0), + internal(true), + zipError(UNZ_OK) {} + /// The constructor for the corresponding QuaZipFile constructor. + inline QuaZipFilePrivate(QuaZipFile *q, const QString &zipName): + q(q), + caseSensitivity(QuaZip::csDefault), + raw(false), + writePos(0), + uncompressedSize(0), + crc(0), + internal(true), + zipError(UNZ_OK) + { + zip=new QuaZip(zipName); + } + /// The constructor for the corresponding QuaZipFile constructor. + inline QuaZipFilePrivate(QuaZipFile *q, const QString &zipName, const QString &fileName, + QuaZip::CaseSensitivity cs): + q(q), + raw(false), + writePos(0), + uncompressedSize(0), + crc(0), + internal(true), + zipError(UNZ_OK) + { + zip=new QuaZip(zipName); + this->fileName=fileName; + if (this->fileName.startsWith('/')) + this->fileName = this->fileName.mid(1); + this->caseSensitivity=cs; + } + /// The constructor for the QuaZipFile constructor accepting a file name. + inline QuaZipFilePrivate(QuaZipFile *q, QuaZip *zip): + q(q), + zip(zip), + raw(false), + writePos(0), + uncompressedSize(0), + crc(0), + internal(false), + zipError(UNZ_OK) {} + /// The destructor. + inline ~QuaZipFilePrivate() + { + if (internal) + delete zip; + } +}; + +QuaZipFile::QuaZipFile(): + p(new QuaZipFilePrivate(this)) +{ +} + +QuaZipFile::QuaZipFile(QObject *parent): + QIODevice(parent), + p(new QuaZipFilePrivate(this)) +{ +} + +QuaZipFile::QuaZipFile(const QString& zipName, QObject *parent): + QIODevice(parent), + p(new QuaZipFilePrivate(this, zipName)) +{ +} + +QuaZipFile::QuaZipFile(const QString& zipName, const QString& fileName, + QuaZip::CaseSensitivity cs, QObject *parent): + QIODevice(parent), + p(new QuaZipFilePrivate(this, zipName, fileName, cs)) +{ +} + +QuaZipFile::QuaZipFile(QuaZip *zip, QObject *parent): + QIODevice(parent), + p(new QuaZipFilePrivate(this, zip)) +{ +} + +QuaZipFile::~QuaZipFile() +{ + if (isOpen()) + close(); + delete p; +} + +QString QuaZipFile::getZipName() const +{ + return p->zip==NULL ? QString() : p->zip->getZipName(); +} + +QuaZip *QuaZipFile::getZip() const +{ + return p->internal ? NULL : p->zip; +} + +QString QuaZipFile::getActualFileName()const +{ + p->setZipError(UNZ_OK); + if (p->zip == NULL || (openMode() & WriteOnly)) + return QString(); + QString name=p->zip->getCurrentFileName(); + if(name.isNull()) + p->setZipError(p->zip->getZipError()); + return name; +} + +void QuaZipFile::setZipName(const QString& zipName) +{ + if(isOpen()) { + qWarning("QuaZipFile::setZipName(): file is already open - can not set ZIP name"); + return; + } + if(p->zip!=NULL && p->internal) + delete p->zip; + p->zip=new QuaZip(zipName); + p->internal=true; +} + +void QuaZipFile::setZip(QuaZip *zip) +{ + if(isOpen()) { + qWarning("QuaZipFile::setZip(): file is already open - can not set ZIP"); + return; + } + if(p->zip!=NULL && p->internal) + delete p->zip; + p->zip=zip; + p->fileName=QString(); + p->internal=false; +} + +void QuaZipFile::setFileName(const QString& fileName, QuaZip::CaseSensitivity cs) +{ + if(p->zip==NULL) { + qWarning("QuaZipFile::setFileName(): call setZipName() first"); + return; + } + if(!p->internal) { + qWarning("QuaZipFile::setFileName(): should not be used when not using internal QuaZip"); + return; + } + if(isOpen()) { + qWarning("QuaZipFile::setFileName(): can not set file name for already opened file"); + return; + } + p->fileName=fileName; + if (p->fileName.startsWith('/')) + p->fileName = p->fileName.mid(1); + p->caseSensitivity=cs; +} + +void QuaZipFilePrivate::setZipError(int zipError) const +{ + QuaZipFilePrivate *fakeThis = const_cast(this); // non-const + fakeThis->zipError=zipError; + if(zipError==UNZ_OK) + q->setErrorString(QString()); + else + q->setErrorString(QuaZipFile::tr("ZIP/UNZIP API error %1").arg(zipError)); +} + +bool QuaZipFile::open(OpenMode mode) +{ + return open(mode, NULL); +} + +bool QuaZipFile::open(OpenMode mode, int *method, int *level, bool raw, const char *password) +{ + p->resetZipError(); + if(isOpen()) { + qWarning("QuaZipFile::open(): already opened"); + return false; + } + if(mode&Unbuffered) { + qWarning("QuaZipFile::open(): Unbuffered mode is not supported"); + return false; + } + if((mode&ReadOnly)&&!(mode&WriteOnly)) { + if(p->internal) { + if(!p->zip->open(QuaZip::mdUnzip)) { + p->setZipError(p->zip->getZipError()); + return false; + } + if(!p->zip->setCurrentFile(p->fileName, p->caseSensitivity)) { + p->setZipError(p->zip->getZipError()); + p->zip->close(); + return false; + } + } else { + if(p->zip==NULL) { + qWarning("QuaZipFile::open(): zip is NULL"); + return false; + } + if(p->zip->getMode()!=QuaZip::mdUnzip) { + qWarning("QuaZipFile::open(): file open mode %d incompatible with ZIP open mode %d", + (int)mode, (int)p->zip->getMode()); + return false; + } + if(!p->zip->hasCurrentFile()) { + qWarning("QuaZipFile::open(): zip does not have current file"); + return false; + } + } + p->setZipError(unzOpenCurrentFile3(p->zip->getUnzFile(), method, level, (int)raw, password)); + if(p->zipError==UNZ_OK) { + setOpenMode(mode); + p->raw=raw; + return true; + } else + return false; + } + qWarning("QuaZipFile::open(): open mode %d not supported by this function", (int)mode); + return false; +} + +bool QuaZipFile::open(OpenMode mode, const QuaZipNewInfo& info, + const char *password, quint32 crc, + int method, int level, bool raw, + int windowBits, int memLevel, int strategy) +{ + zip_fileinfo info_z; + p->resetZipError(); + if(isOpen()) { + qWarning("QuaZipFile::open(): already opened"); + return false; + } + if((mode&WriteOnly)&&!(mode&ReadOnly)) { + if(p->internal) { + qWarning("QuaZipFile::open(): write mode is incompatible with internal QuaZip approach"); + return false; + } + if(p->zip==NULL) { + qWarning("QuaZipFile::open(): zip is NULL"); + return false; + } + if(p->zip->getMode()!=QuaZip::mdCreate&&p->zip->getMode()!=QuaZip::mdAppend&&p->zip->getMode()!=QuaZip::mdAdd) { + qWarning("QuaZipFile::open(): file open mode %d incompatible with ZIP open mode %d", + (int)mode, (int)p->zip->getMode()); + return false; + } + info_z.tmz_date.tm_year=info.dateTime.date().year(); + info_z.tmz_date.tm_mon=info.dateTime.date().month() - 1; + info_z.tmz_date.tm_mday=info.dateTime.date().day(); + info_z.tmz_date.tm_hour=info.dateTime.time().hour(); + info_z.tmz_date.tm_min=info.dateTime.time().minute(); + info_z.tmz_date.tm_sec=info.dateTime.time().second(); + info_z.dosDate = 0; + info_z.internal_fa=(uLong)info.internalAttr; + info_z.external_fa=(uLong)info.externalAttr; + if (p->zip->isDataDescriptorWritingEnabled()) + zipSetFlags(p->zip->getZipFile(), ZIP_WRITE_DATA_DESCRIPTOR); + else + zipClearFlags(p->zip->getZipFile(), ZIP_WRITE_DATA_DESCRIPTOR); + p->setZipError(zipOpenNewFileInZip3_64(p->zip->getZipFile(), + p->zip->getFileNameCodec()->fromUnicode(info.name).constData(), &info_z, + info.extraLocal.constData(), info.extraLocal.length(), + info.extraGlobal.constData(), info.extraGlobal.length(), + p->zip->getCommentCodec()->fromUnicode(info.comment).constData(), + method, level, (int)raw, + windowBits, memLevel, strategy, + password, (uLong)crc, p->zip->isZip64Enabled())); + if(p->zipError==UNZ_OK) { + p->writePos=0; + setOpenMode(mode); + p->raw=raw; + if(raw) { + p->crc=crc; + p->uncompressedSize=info.uncompressedSize; + } + return true; + } else + return false; + } + qWarning("QuaZipFile::open(): open mode %d not supported by this function", (int)mode); + return false; +} + +bool QuaZipFile::isSequential()const +{ + return true; +} + +qint64 QuaZipFile::pos()const +{ + if(p->zip==NULL) { + qWarning("QuaZipFile::pos(): call setZipName() or setZip() first"); + return -1; + } + if(!isOpen()) { + qWarning("QuaZipFile::pos(): file is not open"); + return -1; + } + if(openMode()&ReadOnly) + // QIODevice::pos() is broken for sequential devices, + // but thankfully bytesAvailable() returns the number of + // bytes buffered, so we know how far ahead we are. + return unztell64(p->zip->getUnzFile()) - QIODevice::bytesAvailable(); + else + return p->writePos; +} + +bool QuaZipFile::atEnd()const +{ + if(p->zip==NULL) { + qWarning("QuaZipFile::atEnd(): call setZipName() or setZip() first"); + return false; + } + if(!isOpen()) { + qWarning("QuaZipFile::atEnd(): file is not open"); + return false; + } + if(openMode()&ReadOnly) + // the same problem as with pos() + return QIODevice::bytesAvailable() == 0 + && unzeof(p->zip->getUnzFile())==1; + else + return true; +} + +qint64 QuaZipFile::size()const +{ + if(!isOpen()) { + qWarning("QuaZipFile::atEnd(): file is not open"); + return -1; + } + if(openMode()&ReadOnly) + return p->raw?csize():usize(); + else + return p->writePos; +} + +qint64 QuaZipFile::csize()const +{ + unz_file_info64 info_z; + p->setZipError(UNZ_OK); + if(p->zip==NULL||p->zip->getMode()!=QuaZip::mdUnzip) return -1; + p->setZipError(unzGetCurrentFileInfo64(p->zip->getUnzFile(), &info_z, NULL, 0, NULL, 0, NULL, 0)); + if(p->zipError!=UNZ_OK) + return -1; + return info_z.compressed_size; +} + +qint64 QuaZipFile::usize()const +{ + unz_file_info64 info_z; + p->setZipError(UNZ_OK); + if(p->zip==NULL||p->zip->getMode()!=QuaZip::mdUnzip) return -1; + p->setZipError(unzGetCurrentFileInfo64(p->zip->getUnzFile(), &info_z, NULL, 0, NULL, 0, NULL, 0)); + if(p->zipError!=UNZ_OK) + return -1; + return info_z.uncompressed_size; +} + +bool QuaZipFile::getFileInfo(QuaZipFileInfo *info) +{ + QuaZipFileInfo64 info64; + if (getFileInfo(&info64)) { + info64.toQuaZipFileInfo(*info); + return true; + } else { + return false; + } +} + +bool QuaZipFile::getFileInfo(QuaZipFileInfo64 *info) +{ + if(p->zip==NULL||p->zip->getMode()!=QuaZip::mdUnzip) return false; + p->zip->getCurrentFileInfo(info); + p->setZipError(p->zip->getZipError()); + return p->zipError==UNZ_OK; +} + +void QuaZipFile::close() +{ + p->resetZipError(); + if(p->zip==NULL||!p->zip->isOpen()) return; + if(!isOpen()) { + qWarning("QuaZipFile::close(): file isn't open"); + return; + } + if(openMode()&ReadOnly) + p->setZipError(unzCloseCurrentFile(p->zip->getUnzFile())); + else if(openMode()&WriteOnly) + if(isRaw()) p->setZipError(zipCloseFileInZipRaw64(p->zip->getZipFile(), p->uncompressedSize, p->crc)); + else p->setZipError(zipCloseFileInZip(p->zip->getZipFile())); + else { + qWarning("Wrong open mode: %d", (int)openMode()); + return; + } + if(p->zipError==UNZ_OK) setOpenMode(QIODevice::NotOpen); + else return; + if(p->internal) { + p->zip->close(); + p->setZipError(p->zip->getZipError()); + } +} + +qint64 QuaZipFile::readData(char *data, qint64 maxSize) +{ + p->setZipError(UNZ_OK); + qint64 bytesRead=unzReadCurrentFile(p->zip->getUnzFile(), data, (unsigned)maxSize); + if (bytesRead < 0) { + p->setZipError((int) bytesRead); + return -1; + } + return bytesRead; +} + +qint64 QuaZipFile::writeData(const char* data, qint64 maxSize) +{ + p->setZipError(ZIP_OK); + p->setZipError(zipWriteInFileInZip(p->zip->getZipFile(), data, (uint)maxSize)); + if(p->zipError!=ZIP_OK) return -1; + else { + p->writePos+=maxSize; + return maxSize; + } +} + +QString QuaZipFile::getFileName() const +{ + return p->fileName; +} + +QuaZip::CaseSensitivity QuaZipFile::getCaseSensitivity() const +{ + return p->caseSensitivity; +} + +bool QuaZipFile::isRaw() const +{ + return p->raw; +} + +int QuaZipFile::getZipError() const +{ + return p->zipError; +} + +qint64 QuaZipFile::bytesAvailable() const +{ + return size() - pos(); +} diff --git a/quazipfile.h b/quazipfile.h new file mode 100644 index 0000000..e27b7a4 --- /dev/null +++ b/quazipfile.h @@ -0,0 +1,456 @@ +#ifndef QUA_ZIPFILE_H +#define QUA_ZIPFILE_H + +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +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 + +#include "quazip_global.h" +#include "quazip.h" +#include "quazipnewinfo.h" + +class QuaZipFilePrivate; + +/// A file inside ZIP archive. +/** \class QuaZipFile quazipfile.h + * This is the most interesting class. Not only it provides C++ + * interface to the ZIP/UNZIP package, but also integrates it with Qt by + * subclassing QIODevice. This makes possible to access files inside ZIP + * archive using QTextStream or QDataStream, for example. Actually, this + * is the main purpose of the whole QuaZIP library. + * + * You can either use existing QuaZip instance to create instance of + * this class or pass ZIP archive file name to this class, in which case + * it will create internal QuaZip object. See constructors' descriptions + * for details. Writing is only possible with the existing instance. + * + * Note that due to the underlying library's limitation it is not + * possible to use multiple QuaZipFile instances to open several files + * in the same archive at the same time. If you need to write to + * multiple files in parallel, then you should write to temporary files + * first, then pack them all at once when you have finished writing. If + * you need to read multiple files inside the same archive in parallel, + * you should extract them all into a temporary directory first. + * + * \section quazipfile-sequential Sequential or random-access? + * + * At the first thought, QuaZipFile has fixed size, the start and the + * end and should be therefore considered random-access device. But + * there is one major obstacle to making it random-access: ZIP/UNZIP API + * does not support seek() operation and the only way to implement it is + * through reopening the file and re-reading to the required position, + * but this is prohibitively slow. + * + * Therefore, QuaZipFile is considered to be a sequential device. This + * has advantage of availability of the ungetChar() operation (QIODevice + * does not implement it properly for non-sequential devices unless they + * support seek()). Disadvantage is a somewhat strange behaviour of the + * size() and pos() functions. This should be kept in mind while using + * this class. + * + **/ +class QUAZIP_EXPORT QuaZipFile: public QIODevice { + friend class QuaZipFilePrivate; + Q_OBJECT + private: + QuaZipFilePrivate *p; + // these are not supported nor implemented + QuaZipFile(const QuaZipFile& that); + QuaZipFile& operator=(const QuaZipFile& that); + protected: + /// Implementation of the QIODevice::readData(). + qint64 readData(char *data, qint64 maxSize); + /// Implementation of the QIODevice::writeData(). + qint64 writeData(const char *data, qint64 maxSize); + public: + /// Constructs a QuaZipFile instance. + /** You should use setZipName() and setFileName() or setZip() before + * trying to call open() on the constructed object. + **/ + QuaZipFile(); + /// Constructs a QuaZipFile instance. + /** \a parent argument specifies this object's parent object. + * + * You should use setZipName() and setFileName() or setZip() before + * trying to call open() on the constructed object. + **/ + QuaZipFile(QObject *parent); + /// Constructs a QuaZipFile instance. + /** \a parent argument specifies this object's parent object and \a + * zipName specifies ZIP archive file name. + * + * You should use setFileName() before trying to call open() on the + * constructed object. + * + * QuaZipFile constructed by this constructor can be used for read + * only access. Use QuaZipFile(QuaZip*,QObject*) for writing. + **/ + QuaZipFile(const QString& zipName, QObject *parent =NULL); + /// Constructs a QuaZipFile instance. + /** \a parent argument specifies this object's parent object, \a + * zipName specifies ZIP archive file name and \a fileName and \a cs + * specify a name of the file to open inside archive. + * + * QuaZipFile constructed by this constructor can be used for read + * only access. Use QuaZipFile(QuaZip*,QObject*) for writing. + * + * \sa QuaZip::setCurrentFile() + **/ + QuaZipFile(const QString& zipName, const QString& fileName, + QuaZip::CaseSensitivity cs =QuaZip::csDefault, QObject *parent =NULL); + /// Constructs a QuaZipFile instance. + /** \a parent argument specifies this object's parent object. + * + * \a zip is the pointer to the existing QuaZip object. This + * QuaZipFile object then can be used to read current file in the + * \a zip or to write to the file inside it. + * + * \warning Using this constructor for reading current file can be + * tricky. Let's take the following example: + * \code + * QuaZip zip("archive.zip"); + * zip.open(QuaZip::mdUnzip); + * zip.setCurrentFile("file-in-archive"); + * QuaZipFile file(&zip); + * file.open(QIODevice::ReadOnly); + * // ok, now we can read from the file + * file.read(somewhere, some); + * zip.setCurrentFile("another-file-in-archive"); // oops... + * QuaZipFile anotherFile(&zip); + * anotherFile.open(QIODevice::ReadOnly); + * anotherFile.read(somewhere, some); // this is still ok... + * file.read(somewhere, some); // and this is NOT + * \endcode + * So, what exactly happens here? When we change current file in the + * \c zip archive, \c file that references it becomes invalid + * (actually, as far as I understand ZIP/UNZIP sources, it becomes + * closed, but QuaZipFile has no means to detect it). + * + * Summary: do not close \c zip object or change its current file as + * long as QuaZipFile is open. Even better - use another constructors + * which create internal QuaZip instances, one per object, and + * therefore do not cause unnecessary trouble. This constructor may + * be useful, though, if you already have a QuaZip instance and do + * not want to access several files at once. Good example: + * \code + * QuaZip zip("archive.zip"); + * zip.open(QuaZip::mdUnzip); + * // first, we need some information about archive itself + * QByteArray comment=zip.getComment(); + * // and now we are going to access files inside it + * QuaZipFile file(&zip); + * for(bool more=zip.goToFirstFile(); more; more=zip.goToNextFile()) { + * file.open(QIODevice::ReadOnly); + * // do something cool with file here + * file.close(); // do not forget to close! + * } + * zip.close(); + * \endcode + **/ + QuaZipFile(QuaZip *zip, QObject *parent =NULL); + /// Destroys a QuaZipFile instance. + /** Closes file if open, destructs internal QuaZip object (if it + * exists and \em is internal, of course). + **/ + virtual ~QuaZipFile(); + /// Returns the ZIP archive file name. + /** If this object was created by passing QuaZip pointer to the + * constructor, this function will return that QuaZip's file name + * (or null string if that object does not have file name yet). + * + * Otherwise, returns associated ZIP archive file name or null + * string if there are no name set yet. + * + * \sa setZipName() getFileName() + **/ + QString getZipName()const; + /// Returns a pointer to the associated QuaZip object. + /** Returns \c NULL if there is no associated QuaZip or it is + * internal (so you will not mess with it). + **/ + QuaZip* getZip()const; + /// Returns file name. + /** This function returns file name you passed to this object either + * by using + * QuaZipFile(const QString&,const QString&,QuaZip::CaseSensitivity,QObject*) + * or by calling setFileName(). Real name of the file may differ in + * case if you used case-insensitivity. + * + * Returns null string if there is no file name set yet. This is the + * case when this QuaZipFile operates on the existing QuaZip object + * (constructor QuaZipFile(QuaZip*,QObject*) or setZip() was used). + * + * \sa getActualFileName + **/ + QString getFileName() const; + /// Returns case sensitivity of the file name. + /** This function returns case sensitivity argument you passed to + * this object either by using + * QuaZipFile(const QString&,const QString&,QuaZip::CaseSensitivity,QObject*) + * or by calling setFileName(). + * + * Returns unpredictable value if getFileName() returns null string + * (this is the case when you did not used setFileName() or + * constructor above). + * + * \sa getFileName + **/ + QuaZip::CaseSensitivity getCaseSensitivity() const; + /// Returns the actual file name in the archive. + /** This is \em not a ZIP archive file name, but a name of file inside + * archive. It is not necessary the same name that you have passed + * to the + * QuaZipFile(const QString&,const QString&,QuaZip::CaseSensitivity,QObject*), + * setFileName() or QuaZip::setCurrentFile() - this is the real file + * name inside archive, so it may differ in case if the file name + * search was case-insensitive. + * + * Equivalent to calling getCurrentFileName() on the associated + * QuaZip object. Returns null string if there is no associated + * QuaZip object or if it does not have a current file yet. And this + * is the case if you called setFileName() but did not open the + * file yet. So this is perfectly fine: + * \code + * QuaZipFile file("somezip.zip"); + * file.setFileName("somefile"); + * QString name=file.getName(); // name=="somefile" + * QString actual=file.getActualFileName(); // actual is null string + * file.open(QIODevice::ReadOnly); + * QString actual=file.getActualFileName(); // actual can be "SoMeFiLe" on Windows + * \endcode + * + * \sa getZipName(), getFileName(), QuaZip::CaseSensitivity + **/ + QString getActualFileName()const; + /// Sets the ZIP archive file name. + /** Automatically creates internal QuaZip object and destroys + * previously created internal QuaZip object, if any. + * + * Will do nothing if this file is already open. You must close() it + * first. + **/ + void setZipName(const QString& zipName); + /// Returns \c true if the file was opened in raw mode. + /** If the file is not open, the returned value is undefined. + * + * \sa open(OpenMode,int*,int*,bool,const char*) + **/ + bool isRaw() const; + /// Binds to the existing QuaZip instance. + /** This function destroys internal QuaZip object, if any, and makes + * this QuaZipFile to use current file in the \a zip object for any + * further operations. See QuaZipFile(QuaZip*,QObject*) for the + * possible pitfalls. + * + * Will do nothing if the file is currently open. You must close() + * it first. + **/ + void setZip(QuaZip *zip); + /// Sets the file name. + /** Will do nothing if at least one of the following conditions is + * met: + * - ZIP name has not been set yet (getZipName() returns null + * string). + * - This QuaZipFile is associated with external QuaZip. In this + * case you should call that QuaZip's setCurrentFile() function + * instead! + * - File is already open so setting the name is meaningless. + * + * \sa QuaZip::setCurrentFile + **/ + void setFileName(const QString& fileName, QuaZip::CaseSensitivity cs =QuaZip::csDefault); + /// Opens a file for reading. + /** Returns \c true on success, \c false otherwise. + * Call getZipError() to get error code. + * + * \note Since ZIP/UNZIP API provides buffered reading only, + * QuaZipFile does not support unbuffered reading. So do not pass + * QIODevice::Unbuffered flag in \a mode, or open will fail. + **/ + virtual bool open(OpenMode mode); + /// Opens a file for reading. + /** \overload + * Argument \a password specifies a password to decrypt the file. If + * it is NULL then this function behaves just like open(OpenMode). + **/ + inline bool open(OpenMode mode, const char *password) + {return open(mode, NULL, NULL, false, password);} + /// Opens a file for reading. + /** \overload + * Argument \a password specifies a password to decrypt the file. + * + * An integers pointed by \a method and \a level will receive codes + * of the compression method and level used. See unzip.h. + * + * If raw is \c true then no decompression is performed. + * + * \a method should not be \c NULL. \a level can be \c NULL if you + * don't want to know the compression level. + **/ + bool open(OpenMode mode, int *method, int *level, bool raw, const char *password =NULL); + /// Opens a file for writing. + /** \a info argument specifies information about file. It should at + * least specify a correct file name. Also, it is a good idea to + * specify correct timestamp (by default, current time will be + * used). See QuaZipNewInfo. + * + * The \a password argument specifies the password for crypting. Pass NULL + * if you don't need any crypting. The \a crc argument was supposed + * to be used for crypting too, but then it turned out that it's + * false information, so you need to set it to 0 unless you want to + * use the raw mode (see below). + * + * Arguments \a method and \a level specify compression method and + * level. The only method supported is Z_DEFLATED, but you may also + * specify 0 for no compression. If all of the files in the archive + * use both method 0 and either level 0 is explicitly specified or + * data descriptor writing is disabled with + * QuaZip::setDataDescriptorWritingEnabled(), then the + * resulting archive is supposed to be compatible with the 1.0 ZIP + * format version, should you need that. Except for this, \a level + * has no other effects with method 0. + * + * If \a raw is \c true, no compression is performed. In this case, + * \a crc and uncompressedSize field of the \a info are required. + * + * Arguments \a windowBits, \a memLevel, \a strategy provide zlib + * algorithms tuning. See deflateInit2() in zlib. + **/ + bool open(OpenMode mode, const QuaZipNewInfo& info, + const char *password =NULL, quint32 crc =0, + int method =Z_DEFLATED, int level =Z_DEFAULT_COMPRESSION, bool raw =false, + int windowBits =-MAX_WBITS, int memLevel =DEF_MEM_LEVEL, int strategy =Z_DEFAULT_STRATEGY); + /// Returns \c true, but \ref quazipfile-sequential "beware"! + virtual bool isSequential()const; + /// Returns current position in the file. + /** Implementation of the QIODevice::pos(). When reading, this + * function is a wrapper to the ZIP/UNZIP unztell(), therefore it is + * unable to keep track of the ungetChar() calls (which is + * non-virtual and therefore is dangerous to reimplement). So if you + * are using ungetChar() feature of the QIODevice, this function + * reports incorrect value until you get back characters which you + * ungot. + * + * When writing, pos() returns number of bytes already written + * (uncompressed unless you use raw mode). + * + * \note Although + * \ref quazipfile-sequential "QuaZipFile is a sequential device" + * and therefore pos() should always return zero, it does not, + * because it would be misguiding. Keep this in mind. + * + * This function returns -1 if the file or archive is not open. + * + * Error code returned by getZipError() is not affected by this + * function call. + **/ + virtual qint64 pos()const; + /// Returns \c true if the end of file was reached. + /** This function returns \c false in the case of error. This means + * that you called this function on either not open file, or a file + * in the not open archive or even on a QuaZipFile instance that + * does not even have QuaZip instance associated. Do not do that + * because there is no means to determine whether \c false is + * returned because of error or because end of file was reached. + * Well, on the other side you may interpret \c false return value + * as "there is no file open to check for end of file and there is + * no end of file therefore". + * + * When writing, this function always returns \c true (because you + * are always writing to the end of file). + * + * Error code returned by getZipError() is not affected by this + * function call. + **/ + virtual bool atEnd()const; + /// Returns file size. + /** This function returns csize() if the file is open for reading in + * raw mode, usize() if it is open for reading in normal mode and + * pos() if it is open for writing. + * + * Returns -1 on error, call getZipError() to get error code. + * + * \note This function returns file size despite that + * \ref quazipfile-sequential "QuaZipFile is considered to be sequential device", + * for which size() should return bytesAvailable() instead. But its + * name would be very misguiding otherwise, so just keep in mind + * this inconsistence. + **/ + virtual qint64 size()const; + /// Returns compressed file size. + /** Equivalent to calling getFileInfo() and then getting + * compressedSize field, but more convenient and faster. + * + * File must be open for reading before calling this function. + * + * Returns -1 on error, call getZipError() to get error code. + **/ + qint64 csize()const; + /// Returns uncompressed file size. + /** Equivalent to calling getFileInfo() and then getting + * uncompressedSize field, but more convenient and faster. See + * getFileInfo() for a warning. + * + * File must be open for reading before calling this function. + * + * Returns -1 on error, call getZipError() to get error code. + **/ + qint64 usize()const; + /// Gets information about current file. + /** This function does the same thing as calling + * QuaZip::getCurrentFileInfo() on the associated QuaZip object, + * but you can not call getCurrentFileInfo() if the associated + * QuaZip is internal (because you do not have access to it), while + * you still can call this function in that case. + * + * File must be open for reading before calling this function. + * + * \return \c false in the case of an error. + * + * This function doesn't support zip64, but will still work fine on zip64 + * archives if file sizes are below 4 GB, otherwise the values will be set + * as if converted using QuaZipFileInfo64::toQuaZipFileInfo(). + * + * \sa getFileInfo(QuaZipFileInfo64*) + **/ + bool getFileInfo(QuaZipFileInfo *info); + /// Gets information about current file with zip64 support. + /** + * @overload + * + * \sa getFileInfo(QuaZipFileInfo*) + */ + bool getFileInfo(QuaZipFileInfo64 *info); + /// Closes the file. + /** Call getZipError() to determine if the close was successful. + **/ + virtual void close(); + /// Returns the error code returned by the last ZIP/UNZIP API call. + int getZipError() const; + /// Returns the number of bytes available for reading. + virtual qint64 bytesAvailable() const; +}; + +#endif diff --git a/quazipfileinfo.cpp b/quazipfileinfo.cpp new file mode 100644 index 0000000..f11c910 --- /dev/null +++ b/quazipfileinfo.cpp @@ -0,0 +1,176 @@ +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include "quazipfileinfo.h" + +static QFile::Permissions permissionsFromExternalAttr(quint32 externalAttr) { + quint32 uPerm = (externalAttr & 0xFFFF0000u) >> 16; + QFile::Permissions perm = 0; + if ((uPerm & 0400) != 0) + perm |= QFile::ReadOwner; + if ((uPerm & 0200) != 0) + perm |= QFile::WriteOwner; + if ((uPerm & 0100) != 0) + perm |= QFile::ExeOwner; + if ((uPerm & 0040) != 0) + perm |= QFile::ReadGroup; + if ((uPerm & 0020) != 0) + perm |= QFile::WriteGroup; + if ((uPerm & 0010) != 0) + perm |= QFile::ExeGroup; + if ((uPerm & 0004) != 0) + perm |= QFile::ReadOther; + if ((uPerm & 0002) != 0) + perm |= QFile::WriteOther; + if ((uPerm & 0001) != 0) + perm |= QFile::ExeOther; + return perm; + +} + +QFile::Permissions QuaZipFileInfo::getPermissions() const +{ + return permissionsFromExternalAttr(externalAttr); +} + +QFile::Permissions QuaZipFileInfo64::getPermissions() const +{ + return permissionsFromExternalAttr(externalAttr); +} + +bool QuaZipFileInfo64::toQuaZipFileInfo(QuaZipFileInfo &info) const +{ + bool noOverflow = true; + info.name = name; + info.versionCreated = versionCreated; + info.versionNeeded = versionNeeded; + info.flags = flags; + info.method = method; + info.dateTime = dateTime; + info.crc = crc; + if (compressedSize > 0xFFFFFFFFu) { + info.compressedSize = 0xFFFFFFFFu; + noOverflow = false; + } else { + info.compressedSize = compressedSize; + } + if (uncompressedSize > 0xFFFFFFFFu) { + info.uncompressedSize = 0xFFFFFFFFu; + noOverflow = false; + } else { + info.uncompressedSize = uncompressedSize; + } + info.diskNumberStart = diskNumberStart; + info.internalAttr = internalAttr; + info.externalAttr = externalAttr; + info.comment = comment; + info.extra = extra; + return noOverflow; +} + +static QDateTime getNTFSTime(const QByteArray &extra, int position, + int *fineTicks) +{ + QDateTime dateTime; + for (int i = 0; i <= extra.size() - 4; ) { + unsigned type = static_cast(static_cast( + extra.at(i))) + | (static_cast(static_cast( + extra.at(i + 1))) << 8); + i += 2; + unsigned length = static_cast(static_cast( + extra.at(i))) + | (static_cast(static_cast( + extra.at(i + 1))) << 8); + i += 2; + if (type == QUAZIP_EXTRA_NTFS_MAGIC && length >= 32) { + i += 4; // reserved + while (i <= extra.size() - 4) { + unsigned tag = static_cast( + static_cast(extra.at(i))) + | (static_cast( + static_cast(extra.at(i + 1))) + << 8); + i += 2; + int tagsize = static_cast( + static_cast(extra.at(i))) + | (static_cast( + static_cast(extra.at(i + 1))) + << 8); + i += 2; + if (tag == QUAZIP_EXTRA_NTFS_TIME_MAGIC + && tagsize >= position + 8) { + i += position; + quint64 mtime = static_cast( + static_cast(extra.at(i))) + | (static_cast(static_cast( + extra.at(i + 1))) << 8) + | (static_cast(static_cast( + extra.at(i + 2))) << 16) + | (static_cast(static_cast( + extra.at(i + 3))) << 24) + | (static_cast(static_cast( + extra.at(i + 4))) << 32) + | (static_cast(static_cast( + extra.at(i + 5))) << 40) + | (static_cast(static_cast( + extra.at(i + 6))) << 48) + | (static_cast(static_cast( + extra.at(i + 7))) << 56); + // the NTFS time is measured from 1601 for whatever reason + QDateTime base(QDate(1601, 1, 1), QTime(0, 0), Qt::UTC); + dateTime = base.addMSecs(mtime / 10000); + if (fineTicks != NULL) { + *fineTicks = static_cast(mtime % 10000); + } + i += tagsize - position; + } else { + i += tagsize; + } + + } + } else { + i += length; + } + } + if (fineTicks != NULL && dateTime.isNull()) { + *fineTicks = 0; + } + return dateTime; +} + +QDateTime QuaZipFileInfo64::getNTFSmTime(int *fineTicks) const +{ + return getNTFSTime(extra, 0, fineTicks); +} + +QDateTime QuaZipFileInfo64::getNTFSaTime(int *fineTicks) const +{ + return getNTFSTime(extra, 8, fineTicks); +} + +QDateTime QuaZipFileInfo64::getNTFScTime(int *fineTicks) const +{ + return getNTFSTime(extra, 16, fineTicks); +} diff --git a/quazipfileinfo.h b/quazipfileinfo.h new file mode 100644 index 0000000..4e142a4 --- /dev/null +++ b/quazipfileinfo.h @@ -0,0 +1,178 @@ +#ifndef QUA_ZIPFILEINFO_H +#define QUA_ZIPFILEINFO_H + +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include +#include +#include + +#include "quazip_global.h" + +/// Information about a file inside archive. +/** + * \deprecated Use QuaZipFileInfo64 instead. Not only it supports large files, + * but also more convenience methods as well. + * + * Call QuaZip::getCurrentFileInfo() or QuaZipFile::getFileInfo() to + * fill this structure. */ +struct QUAZIP_EXPORT QuaZipFileInfo { + /// File name. + QString name; + /// Version created by. + quint16 versionCreated; + /// Version needed to extract. + quint16 versionNeeded; + /// General purpose flags. + quint16 flags; + /// Compression method. + quint16 method; + /// Last modification date and time. + QDateTime dateTime; + /// CRC. + quint32 crc; + /// Compressed file size. + quint32 compressedSize; + /// Uncompressed file size. + quint32 uncompressedSize; + /// Disk number start. + quint16 diskNumberStart; + /// Internal file attributes. + quint16 internalAttr; + /// External file attributes. + quint32 externalAttr; + /// Comment. + QString comment; + /// Extra field. + QByteArray extra; + /// Get the file permissions. + /** + Returns the high 16 bits of external attributes converted to + QFile::Permissions. + */ + QFile::Permissions getPermissions() const; +}; + +/// Information about a file inside archive (with zip64 support). +/** Call QuaZip::getCurrentFileInfo() or QuaZipFile::getFileInfo() to + * fill this structure. */ +struct QUAZIP_EXPORT QuaZipFileInfo64 { + /// File name. + QString name; + /// Version created by. + quint16 versionCreated; + /// Version needed to extract. + quint16 versionNeeded; + /// General purpose flags. + quint16 flags; + /// Compression method. + quint16 method; + /// Last modification date and time. + /** + * This is the time stored in the standard ZIP header. This format only allows + * to store time with 2-second precision, so the seconds will always be even + * and the milliseconds will always be zero. If you need more precise + * date and time, you can try to call the getNTFSmTime() function or + * its siblings, provided that the archive itself contains these NTFS times. + */ + QDateTime dateTime; + /// CRC. + quint32 crc; + /// Compressed file size. + quint64 compressedSize; + /// Uncompressed file size. + quint64 uncompressedSize; + /// Disk number start. + quint16 diskNumberStart; + /// Internal file attributes. + quint16 internalAttr; + /// External file attributes. + quint32 externalAttr; + /// Comment. + QString comment; + /// Extra field. + QByteArray extra; + /// Get the file permissions. + /** + Returns the high 16 bits of external attributes converted to + QFile::Permissions. + */ + QFile::Permissions getPermissions() const; + /// Converts to QuaZipFileInfo + /** + If any of the fields are greater than 0xFFFFFFFFu, they are set to + 0xFFFFFFFFu exactly, not just truncated. This function should be mainly used + for compatibility with the old code expecting QuaZipFileInfo, in the cases + when it's impossible or otherwise unadvisable (due to ABI compatibility + reasons, for example) to modify that old code to use QuaZipFileInfo64. + + \return \c true if all fields converted correctly, \c false if an overflow + occured. + */ + bool toQuaZipFileInfo(QuaZipFileInfo &info) const; + /// Returns the NTFS modification time + /** + * The getNTFS*Time() functions only work if there is an NTFS extra field + * present. Otherwise, they all return invalid null timestamps. + * @param fineTicks If not NULL, the fractional part of milliseconds returned + * there, measured in 100-nanosecond ticks. Will be set to + * zero if there is no NTFS extra field. + * @sa dateTime + * @sa getNTFSaTime() + * @sa getNTFScTime() + * @return The NTFS modification time, UTC + */ + QDateTime getNTFSmTime(int *fineTicks = NULL) const; + /// Returns the NTFS access time + /** + * The getNTFS*Time() functions only work if there is an NTFS extra field + * present. Otherwise, they all return invalid null timestamps. + * @param fineTicks If not NULL, the fractional part of milliseconds returned + * there, measured in 100-nanosecond ticks. Will be set to + * zero if there is no NTFS extra field. + * @sa dateTime + * @sa getNTFSmTime() + * @sa getNTFScTime() + * @return The NTFS access time, UTC + */ + QDateTime getNTFSaTime(int *fineTicks = NULL) const; + /// Returns the NTFS creation time + /** + * The getNTFS*Time() functions only work if there is an NTFS extra field + * present. Otherwise, they all return invalid null timestamps. + * @param fineTicks If not NULL, the fractional part of milliseconds returned + * there, measured in 100-nanosecond ticks. Will be set to + * zero if there is no NTFS extra field. + * @sa dateTime + * @sa getNTFSmTime() + * @sa getNTFSaTime() + * @return The NTFS creation time, UTC + */ + QDateTime getNTFScTime(int *fineTicks = NULL) const; + /// Checks whether the file is encrypted. + bool isEncrypted() const {return (flags & 1) != 0;} +}; + +#endif diff --git a/quazipnewinfo.cpp b/quazipnewinfo.cpp new file mode 100644 index 0000000..ad26afe --- /dev/null +++ b/quazipnewinfo.cpp @@ -0,0 +1,292 @@ +/* +Copyright (C) 2005-2014 Sergey A. Tachenov + +This file is part of QuaZIP. + +QuaZIP 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 2.1 of the License, or +(at your option) any later version. + +QuaZIP 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 QuaZIP. If not, see . + +See COPYING file for the full LGPL text. + +Original ZIP package is copyrighted by Gilles Vollant and contributors, +see quazip/(un)zip.h files for details. Basically it's the zlib license. +*/ + +#include +#include + +#include "quazipnewinfo.h" + +#include + +static void QuaZipNewInfo_setPermissions(QuaZipNewInfo *info, + QFile::Permissions perm, bool isDir, bool isSymLink = false) +{ + quint32 uPerm = isDir ? 0040000 : 0100000; + + if ( isSymLink ) { +#ifdef Q_OS_WIN + uPerm = 0200000; +#else + uPerm = 0120000; +#endif + } + + if ((perm & QFile::ReadOwner) != 0) + uPerm |= 0400; + if ((perm & QFile::WriteOwner) != 0) + uPerm |= 0200; + if ((perm & QFile::ExeOwner) != 0) + uPerm |= 0100; + if ((perm & QFile::ReadGroup) != 0) + uPerm |= 0040; + if ((perm & QFile::WriteGroup) != 0) + uPerm |= 0020; + if ((perm & QFile::ExeGroup) != 0) + uPerm |= 0010; + if ((perm & QFile::ReadOther) != 0) + uPerm |= 0004; + if ((perm & QFile::WriteOther) != 0) + uPerm |= 0002; + if ((perm & QFile::ExeOther) != 0) + uPerm |= 0001; + info->externalAttr = (info->externalAttr & ~0xFFFF0000u) | (uPerm << 16); +} + +template +void QuaZipNewInfo_init(QuaZipNewInfo &self, const FileInfo &existing) +{ + self.name = existing.name; + self.dateTime = existing.dateTime; + self.internalAttr = existing.internalAttr; + self.externalAttr = existing.externalAttr; + self.comment = existing.comment; + self.extraLocal = existing.extra; + self.extraGlobal = existing.extra; + self.uncompressedSize = existing.uncompressedSize; +} + +QuaZipNewInfo::QuaZipNewInfo(const QuaZipFileInfo &existing) +{ + QuaZipNewInfo_init(*this, existing); +} + +QuaZipNewInfo::QuaZipNewInfo(const QuaZipFileInfo64 &existing) +{ + QuaZipNewInfo_init(*this, existing); +} + +QuaZipNewInfo::QuaZipNewInfo(const QString& name): + name(name), dateTime(QDateTime::currentDateTime()), internalAttr(0), externalAttr(0), + uncompressedSize(0) +{ +} + +QuaZipNewInfo::QuaZipNewInfo(const QString& name, const QString& file): + name(name), internalAttr(0), externalAttr(0), uncompressedSize(0) +{ + QFileInfo info(file); + QDateTime lm = info.lastModified(); + if (!info.exists()) { + dateTime = QDateTime::currentDateTime(); + } else { + dateTime = lm; + QuaZipNewInfo_setPermissions(this, info.permissions(), info.isDir(), info.isSymLink()); + } +} + +void QuaZipNewInfo::setFileDateTime(const QString& file) +{ + QFileInfo info(file); + QDateTime lm = info.lastModified(); + if (info.exists()) + dateTime = lm; +} + +void QuaZipNewInfo::setFilePermissions(const QString &file) +{ + QFileInfo info = QFileInfo(file); + QFile::Permissions perm = info.permissions(); + QuaZipNewInfo_setPermissions(this, perm, info.isDir(), info.isSymLink()); +} + +void QuaZipNewInfo::setPermissions(QFile::Permissions permissions) +{ + QuaZipNewInfo_setPermissions(this, permissions, name.endsWith('/')); +} + +void QuaZipNewInfo::setFileNTFSTimes(const QString &fileName) +{ + QFileInfo fi(fileName); + if (!fi.exists()) { + qWarning("QuaZipNewInfo::setFileNTFSTimes(): '%s' doesn't exist", + fileName.toUtf8().constData()); + return; + } + setFileNTFSmTime(fi.lastModified()); + setFileNTFSaTime(fi.lastRead()); +#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0) + //deprecated since 5.10 + setFileNTFScTime(fi.created()); +#else + setFileNTFScTime(fi.birthTime()); +#endif +} + +static void setNTFSTime(QByteArray &extra, const QDateTime &time, int position, + int fineTicks) { + int ntfsPos = -1, timesPos = -1; + unsigned ntfsLength = 0, ntfsTimesLength = 0; + for (int i = 0; i <= extra.size() - 4; ) { + unsigned type = static_cast(static_cast( + extra.at(i))) + | (static_cast(static_cast( + extra.at(i + 1))) << 8); + i += 2; + unsigned length = static_cast(static_cast( + extra.at(i))) + | (static_cast(static_cast( + extra.at(i + 1))) << 8); + i += 2; + if (type == QUAZIP_EXTRA_NTFS_MAGIC) { + ntfsPos = i - 4; // the beginning of the NTFS record + ntfsLength = length; + if (length <= 4) { + break; // no times in the NTFS record + } + i += 4; // reserved + while (i <= extra.size() - 4) { + unsigned tag = static_cast( + static_cast(extra.at(i))) + | (static_cast( + static_cast(extra.at(i + 1))) + << 8); + i += 2; + unsigned tagsize = static_cast( + static_cast(extra.at(i))) + | (static_cast( + static_cast(extra.at(i + 1))) + << 8); + i += 2; + if (tag == QUAZIP_EXTRA_NTFS_TIME_MAGIC) { + timesPos = i - 4; // the beginning of the NTFS times tag + ntfsTimesLength = tagsize; + break; + } else { + i += tagsize; + } + } + break; // I ain't going to search for yet another NTFS record! + } else { + i += length; + } + } + if (ntfsPos == -1) { + // No NTFS record, need to create one. + ntfsPos = extra.size(); + ntfsLength = 32; + extra.resize(extra.size() + 4 + ntfsLength); + // the NTFS record header + extra[ntfsPos] = static_cast(QUAZIP_EXTRA_NTFS_MAGIC); + extra[ntfsPos + 1] = static_cast(QUAZIP_EXTRA_NTFS_MAGIC >> 8); + extra[ntfsPos + 2] = 32; // the 2-byte size in LittleEndian + extra[ntfsPos + 3] = 0; + // zero the record + memset(extra.data() + ntfsPos + 4, 0, 32); + timesPos = ntfsPos + 8; + // now set the tag data + extra[timesPos] = static_cast(QUAZIP_EXTRA_NTFS_TIME_MAGIC); + extra[timesPos + 1] = static_cast(QUAZIP_EXTRA_NTFS_TIME_MAGIC + >> 8); + // the size: + extra[timesPos + 2] = 24; + extra[timesPos + 3] = 0; + ntfsTimesLength = 24; + } + if (timesPos == -1) { + // No time tag in the NTFS record, need to add one. + timesPos = ntfsPos + 4 + ntfsLength; + extra.resize(extra.size() + 28); + // Now we need to move the rest of the field + // (possibly zero bytes, but memmove() is OK with that). + // 0 ......... ntfsPos .. ntfsPos + 4 ... timesPos + //
+ memmove(extra.data() + timesPos + 28, extra.data() + timesPos, + extra.size() - 28 - timesPos); + ntfsLength += 28; + // now set the tag data + extra[timesPos] = static_cast(QUAZIP_EXTRA_NTFS_TIME_MAGIC); + extra[timesPos + 1] = static_cast(QUAZIP_EXTRA_NTFS_TIME_MAGIC + >> 8); + // the size: + extra[timesPos + 2] = 24; + extra[timesPos + 3] = 0; + // zero the record + memset(extra.data() + timesPos + 4, 0, 24); + ntfsTimesLength = 24; + } + if (ntfsTimesLength < 24) { + // Broken times field. OK, this is really unlikely, but just in case... + size_t timesEnd = timesPos + 4 + ntfsTimesLength; + extra.resize(extra.size() + (24 - ntfsTimesLength)); + // Move it! + // 0 ......... timesPos .... timesPos + 4 .. timesEnd + //