Merge pull request #667 from ctrlaltca/oracle_zip

Oracle: support AllSets.json.zip; Fix #624

README.md

@@ -24,6 +24,10 @@ Dependencies:
 - [protobuf](http://code.google.com/p/protobuf/)
 - [CMake](http://www.cmake.org/)
 
+Oracle can optionally use zlib to load zipped files:
+
+- [zlib](http://www.zlib.net/)
+
 The server requires an additional dependency when compiled under Qt4:
 
 - [libgcrypt](http://www.gnu.org/software/libgcrypt/)

oracle/CMakeLists.txt

@@ -11,6 +11,8 @@ SET(oracle_SOURCES
     src/main.cpp
     src/oraclewizard.cpp
     src/oracleimporter.cpp
+    src/zip/unzip.cpp
+    src/zip/zipglobal.cpp
     ../cockatrice/src/carddatabase.cpp
     ../cockatrice/src/settingscache.cpp
     ../cockatrice/src/qt-json/json.cpp
@@ -93,6 +95,15 @@ endif()
 
 INCLUDE_DIRECTORIES(../cockatrice/src)
 
+# Libz is required to support zipped files
+FIND_PACKAGE(ZLIB REQUIRED)
+IF(ZLIB_FOUND)
+    INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIRS})
+    ADD_DEFINITIONS("-DHAS_ZLIB")
+ELSE()
+    MESSAGE(STATUS "Oracle: zlib not found; ZIP support disabled")
+ENDIF()
+
 # Build oracle binary and link it
 ADD_EXECUTABLE(oracle WIN32 MACOSX_BUNDLE ${oracle_SOURCES} ${oracle_RESOURCES_RCC} ${oracle_MOC_SRCS})
 
@@ -109,6 +120,10 @@ if(Qt5Widgets_FOUND)
     qt5_use_modules(oracle ${ORACLE_LIBS})
 endif()
 
+IF(ZLIB_FOUND)
+    TARGET_LINK_LIBRARIES(oracle ${ZLIB_LIBRARIES})
+ENDIF()
+
 if(UNIX)
     if(APPLE)
         set(MACOSX_BUNDLE_INFO_STRING "${PROJECT_NAME}")

oracle/src/oraclewizard.cpp

@@ -6,6 +6,7 @@
     #include <QtConcurrent>
 #endif
 #include <QAbstractButton>
+#include <QBuffer>
 #include <QCheckBox>
 #include <QDir>
 #include <QFileDialog>
@@ -25,7 +26,15 @@
 #include "oraclewizard.h"
 #include "oracleimporter.h"
 
-#define ALLSETS_URL "http://mtgjson.com/json/AllSets.json"
+#ifdef HAS_ZLIB
+    #include "zip/unzip.h"
+    #define ZIP_SIGNATURE "PK"
+    #define ALLSETS_URL "http://mtgjson.com/json/AllSets.json.zip"
+    #define ALLSETS_URL_FALLBACK "http://mtgjson.com/json/AllSets.json"
+#else
+    #define ALLSETS_URL "http://mtgjson.com/json/AllSets.json"
+#endif
+
 
 OracleWizard::OracleWizard(QWidget *parent)
     : QWizard(parent)
@@ -141,7 +150,12 @@ void LoadSetsPage::actLoadSetsFile()
 {
     QFileDialog dialog(this, tr("Load sets file"));
     dialog.setFileMode(QFileDialog::ExistingFile);
-    dialog.setNameFilter("Sets JSON file (*.json)");
+    
+#ifdef HAS_ZLIB
+    dialog.setNameFilter(tr("Sets JSON file (*.json *.zip)"));
+#else
+    dialog.setNameFilter(tr("Sets JSON file (*.json)"));
+#endif
 
     if(!fileLineEdit->text().isEmpty() && QFile::exists(fileLineEdit->text()))
         dialog.selectFile(fileLineEdit->text());
@@ -194,7 +208,7 @@ bool LoadSetsPage::validatePage()
             return false;
         }
 
-        if (!setsFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
+        if (!setsFile.open(QIODevice::ReadOnly)) {
             QMessageBox::critical(0, tr("Error"), tr("Cannot open file '%1'.").arg(fileLineEdit->text()));
             return false;
         }
@@ -256,11 +270,74 @@ void LoadSetsPage::readSetsFromByteArray(QByteArray data)
     progressLabel->show();
     progressBar->show();
 
+    // unzip the file if needed
+    if(data.startsWith(ZIP_SIGNATURE))
+    {
+#ifdef HAS_ZLIB
+        // zipped file
+        QBuffer *inBuffer = new QBuffer(&data);
+        QBuffer *outBuffer = new QBuffer(this);
+        QString fileName;
+        UnZip::ErrorCode ec;
+        UnZip uz;
+
+        ec = uz.openArchive(inBuffer);
+        if (ec != UnZip::Ok) {
+            zipDownloadFailed(tr("Failed to open Zip archive: %1.").arg(uz.formatError(ec)));
+            return;
+        }
+
+        if(uz.fileList().size() != 1)
+        {
+            zipDownloadFailed(tr("Zip extraction failed: the Zip archive doesn't contain exactly one file."));
+            return;            
+        }
+        fileName = uz.fileList().at(0);
+
+        outBuffer->open(QBuffer::ReadWrite);
+        ec = uz.extractFile(fileName, outBuffer);
+        if (ec != UnZip::Ok) {
+            zipDownloadFailed(tr("Zip extraction failed: %1.").arg(uz.formatError(ec)));
+            uz.closeArchive();
+            return;
+        }
+
+        future = QtConcurrent::run(wizard()->importer, &OracleImporter::readSetsFromByteArray, outBuffer->data());
+        watcher.setFuture(future);
+        return;
+#else
+        zipDownloadFailed(tr("Sorry, this version of Oracle does not support zipped files."));
+
+        wizard()->enableButtons();
+        setEnabled(true);
+        progressLabel->hide();
+        progressBar->hide();
+        return;
+#endif
+    } 
     // Start the computation.
     future = QtConcurrent::run(wizard()->importer, &OracleImporter::readSetsFromByteArray, data);
     watcher.setFuture(future);
 }
 
+void LoadSetsPage::zipDownloadFailed(const QString &message)
+{
+    wizard()->enableButtons();
+    setEnabled(true);
+    progressLabel->hide();
+    progressBar->hide();
+
+    QMessageBox::StandardButton reply;
+    reply = QMessageBox::question(this, tr("Error"), message + "<br/>" + tr("Do you want to try to download a fresh copy of the uncompressed file instead?"), QMessageBox::Yes|QMessageBox::No, QMessageBox::Yes);
+    if (reply == QMessageBox::Yes)
+    {
+        urlRadioButton->setChecked(true);
+        urlLineEdit->setText(ALLSETS_URL_FALLBACK);
+
+        wizard()->next();
+    }
+}
+
 void LoadSetsPage::importFinished()
 {
     wizard()->enableButtons();

oracle/src/oraclewizard.h

@@ -77,6 +77,7 @@ private slots:
      void actDownloadProgressSetsFile(qint64 received, qint64 total);
      void actDownloadFinishedSetsFile();
      void importFinished();
+     void zipDownloadFailed(const QString &message);
 };
 
 class ChooseSetsPage : public OracleWizardPage

oracle/src/zip/unzip.h

+/****************************************************************************
+** Filename: unzip.h
+** Last updated [dd/mm/yyyy]: 27/03/2011
+**
+** pkzip 2.0 decompression.
+**
+** Some of the code has been inspired by other open source projects,
+** (mainly Info-Zip and Gilles Vollant's minizip).
+** Compression and decompression actually uses the zlib library.
+**
+** Copyright (C) 2007-2012 Angius Fabrizio. All rights reserved.
+**
+** This file is part of the OSDaB project (http://osdab.42cows.org/).
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See the file LICENSE.GPL that came with this software distribution or
+** visit http://www.gnu.org/copyleft/gpl.html for GPL licensing information.
+**
+**********************************************************************/
+
+#ifndef OSDAB_UNZIP__H
+#define OSDAB_UNZIP__H
+
+#include "zipglobal.h"
+
+#include <QtCore/QDateTime>
+#include <QtCore/QMap>
+#include <QtCore/QtGlobal>
+
+#include <zlib.h>
+
+class QDir;
+class QFile;
+class QIODevice;
+class QString;
+class QStringList;
+
+OSDAB_BEGIN_NAMESPACE(Zip)
+
+class UnzipPrivate;
+
+class OSDAB_ZIP_EXPORT UnZip
+{
+public:
+	enum ErrorCode
+	{
+		Ok,
+		ZlibInit,
+		ZlibError,
+		OpenFailed,
+		PartiallyCorrupted,
+		Corrupted,
+		WrongPassword,
+		NoOpenArchive,
+		FileNotFound,
+		ReadFailed,
+		WriteFailed,
+		SeekFailed,
+		CreateDirFailed,
+		InvalidDevice,
+		InvalidArchive,
+		HeaderConsistencyError,
+
+		Skip, SkipAll // internal use only
+	};
+
+	enum ExtractionOption
+    {
+        ExtractPaths = 0x0001,
+        SkipPaths = 0x0002,
+        VerifyOnly = 0x0004,
+        NoSilentDirectoryCreation = 0x0008
+	};
+	Q_DECLARE_FLAGS(ExtractionOptions, ExtractionOption)
+
+	enum CompressionMethod
+	{
+		NoCompression, Deflated, UnknownCompression
+	};
+
+	enum FileType
+	{
+		File, Directory
+	};
+
+	struct ZipEntry
+	{
+		ZipEntry();
+
+		QString filename;
+		QString comment;
+
+		quint32 compressedSize;
+		quint32 uncompressedSize;
+		quint32 crc32;
+
+		QDateTime lastModified;
+
+		CompressionMethod compression;
+		FileType type;
+
+		bool encrypted;
+	};
+
+	UnZip();
+	virtual ~UnZip();
+
+	bool isOpen() const;
+
+	ErrorCode openArchive(const QString& filename);
+	ErrorCode openArchive(QIODevice* device);
+	void closeArchive();
+
+	QString archiveComment() const;
+
+	QString formatError(UnZip::ErrorCode c) const;
+
+	bool contains(const QString& file) const;
+
+	QStringList fileList() const;
+	QList<ZipEntry> entryList() const;
+
+    ErrorCode verifyArchive();
+
+	ErrorCode extractAll(const QString& dirname, ExtractionOptions options = ExtractPaths);
+	ErrorCode extractAll(const QDir& dir, ExtractionOptions options = ExtractPaths);
+
+	ErrorCode extractFile(const QString& filename, const QString& dirname, ExtractionOptions options = ExtractPaths);
+	ErrorCode extractFile(const QString& filename, const QDir& dir, ExtractionOptions options = ExtractPaths);
+	ErrorCode extractFile(const QString& filename, QIODevice* device, ExtractionOptions options = ExtractPaths);
+
+	ErrorCode extractFiles(const QStringList& filenames, const QString& dirname, ExtractionOptions options = ExtractPaths);
+	ErrorCode extractFiles(const QStringList& filenames, const QDir& dir, ExtractionOptions options = ExtractPaths);
+
+	void setPassword(const QString& pwd);
+
+private:
+	UnzipPrivate* d;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(UnZip::ExtractionOptions)
+
+OSDAB_END_NAMESPACE
+
+#endif // OSDAB_UNZIP__H

oracle/src/zip/unzip_p.h

+/****************************************************************************
+** Filename: unzip_p.h
+** Last updated [dd/mm/yyyy]: 27/03/2011
+**
+** pkzip 2.0 decompression.
+**
+** Some of the code has been inspired by other open source projects,
+** (mainly Info-Zip and Gilles Vollant's minizip).
+** Compression and decompression actually uses the zlib library.
+**
+** Copyright (C) 2007-2012 Angius Fabrizio. All rights reserved.
+**
+** This file is part of the OSDaB project (http://osdab.42cows.org/).
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See the file LICENSE.GPL that came with this software distribution or
+** visit http://www.gnu.org/copyleft/gpl.html for GPL licensing information.
+**
+**********************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Zip/UnZip API.  It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#ifndef OSDAB_UNZIP_P__H
+#define OSDAB_UNZIP_P__H
+
+#include "unzip.h"
+#include "zipentry_p.h"
+
+#include <QtCore/QObject>
+#include <QtCore/QtGlobal>
+
+// zLib authors suggest using larger buffers (128K or 256K) for (de)compression (especially for inflate())
+// we use a 256K buffer here - if you want to use this code on a pre-iceage mainframe please change it ;)
+#define UNZIP_READ_BUFFER (256*1024)
+
+OSDAB_BEGIN_NAMESPACE(Zip)
+
+class UnzipPrivate : public QObject
+{
+    Q_OBJECT
+
+public:
+	UnzipPrivate();
+
+	// Replace this with whatever else you use to store/retrieve the password.
+	QString password;
+
+	bool skipAllEncrypted;
+
+	QMap<QString,ZipEntryP*>* headers;
+
+	QIODevice* device;
+    QFile* file;
+
+	char buffer1[UNZIP_READ_BUFFER];
+	char buffer2[UNZIP_READ_BUFFER];
+
+	unsigned char* uBuffer;
+	const quint32* crcTable;
+
+	// Central Directory (CD) offset
+	quint32 cdOffset;
+	// End of Central Directory (EOCD) offset
+	quint32 eocdOffset;
+
+	// Number of entries in the Central Directory (as to the EOCD record)
+	quint16 cdEntryCount;
+
+	// The number of detected entries that have been skipped because of a non compatible format
+	quint16 unsupportedEntryCount;
+
+	QString comment;
+
+	UnZip::ErrorCode openArchive(QIODevice* device);
+
+	UnZip::ErrorCode seekToCentralDirectory();
+	UnZip::ErrorCode parseCentralDirectoryRecord();
+	UnZip::ErrorCode parseLocalHeaderRecord(const QString& path, const ZipEntryP& entry);
+
+	void closeArchive();
+
+	UnZip::ErrorCode extractFile(const QString& path, const ZipEntryP& entry, const QDir& dir, UnZip::ExtractionOptions options);
+	UnZip::ErrorCode extractFile(const QString& path, const ZipEntryP& entry, QIODevice* device, UnZip::ExtractionOptions options);
+
+	UnZip::ErrorCode testPassword(quint32* keys, const QString& file, const ZipEntryP& header);
+	bool testKeys(const ZipEntryP& header, quint32* keys);
+
+	bool createDirectory(const QString& path);
+
+	inline void decryptBytes(quint32* keys, char* buffer, qint64 read);
+
+	inline quint32 getULong(const unsigned char* data, quint32 offset) const;
+	inline quint64 getULLong(const unsigned char* data, quint32 offset) const;
+	inline quint16 getUShort(const unsigned char* data, quint32 offset) const;
+	inline int decryptByte(quint32 key2) const;
+	inline void updateKeys(quint32* keys, int c) const;
+	inline void initKeys(const QString& pwd, quint32* keys) const;
+
+	inline QDateTime convertDateTime(const unsigned char date[2], const unsigned char time[2]) const;
+
+private slots:
+    void deviceDestroyed(QObject*);
+
+private:
+    UnZip::ErrorCode extractStoredFile(const quint32 szComp, quint32** keys,
+        quint32& myCRC, QIODevice* outDev, UnZip::ExtractionOptions options);
+    UnZip::ErrorCode inflateFile(const quint32 szComp, quint32** keys,
+        quint32& myCRC, QIODevice* outDev, UnZip::ExtractionOptions options);
+    void do_closeArchive();
+};
+
+OSDAB_END_NAMESPACE
+
+#endif // OSDAB_UNZIP_P__H

oracle/src/zip/zip.h

+/****************************************************************************
+** Filename: zip.h
+** Last updated [dd/mm/yyyy]: 27/03/2011
+**
+** pkzip 2.0 file compression.
+**
+** Some of the code has been inspired by other open source projects,
+** (mainly Info-Zip and Gilles Vollant's minizip).
+** Compression and decompression actually uses the zlib library.
+**
+** Copyright (C) 2007-2012 Angius Fabrizio. All rights reserved.
+**
+** This file is part of the OSDaB project (http://osdab.42cows.org/).
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See the file LICENSE.GPL that came with this software distribution or
+** visit http://www.gnu.org/copyleft/gpl.html for GPL licensing information.
+**
+**********************************************************************/
+
+#ifndef OSDAB_ZIP__H
+#define OSDAB_ZIP__H
+
+#include "zipglobal.h"
+
+#include <QtCore/QMap>
+#include <QtCore/QtGlobal>
+
+#include <zlib/zlib.h>
+
+class QIODevice;
+class QFile;
+class QDir;
+class QStringList;
+class QString;
+
+OSDAB_BEGIN_NAMESPACE(Zip)
+
+class ZipPrivate;
+
+class OSDAB_ZIP_EXPORT Zip
+{
+public:
+	enum ErrorCode
+	{
+		Ok,
+		ZlibInit,
+		ZlibError,
+		FileExists,
+		OpenFailed,
+		NoOpenArchive,
+		FileNotFound,
+		ReadFailed,
+		WriteFailed,
+        SeekFailed,
+        InternalError
+	};
+
+	enum CompressionLevel
+	{
+		Store,
+		Deflate1 = 1, Deflate2, Deflate3, Deflate4,
+		Deflate5, Deflate6, Deflate7, Deflate8, Deflate9,
+		AutoCPU, AutoMIME, AutoFull
+	};
+
+	enum CompressionOption
+	{
+        /*! Does not preserve absolute paths in the zip file when adding a
+            file or directory (default) */
+		RelativePaths = 0x0001,
+        /*! Preserve absolute paths */
+		AbsolutePaths = 0x0002,
+        /*! Do not store paths. All the files are put in the (evtl. user defined)
+            root of the zip file */
+        IgnorePaths = 0x0004,
+        /*! Works only with addDirectory(). Adds the directory's contents,
+            including subdirectories, but does not add an entry for the root
+            directory itself. */
+        IgnoreRoot = 0x0008,
+        /*! Used only when compressing a directory or multiple files.
+            If set invalid or unreadable files are simply skipped.
+        */
+        SkipBadFiles = 0x0020,
+        /*! Makes sure a file is never added twice to the same zip archive.
+            This check is only necessary in certain usage scenarios and given
+            that it slows down processing you need to enable it explicitly with
+            this flag.
+        */
+        CheckForDuplicates = 0x0040
+	};
+	Q_DECLARE_FLAGS(CompressionOptions, CompressionOption)
+
+	Zip();
+	virtual ~Zip();
+
+	bool isOpen() const;
+
+	void setPassword(const QString& pwd);
+	void clearPassword();
+	QString password() const;
+
+	ErrorCode createArchive(const QString& file, bool overwrite = true);
+	ErrorCode createArchive(QIODevice* device);
+
+	QString archiveComment() const;
+	void setArchiveComment(const QString& comment);
+
+    ErrorCode addDirectoryContents(const QString& path,
+        CompressionLevel level = AutoFull);
+    ErrorCode addDirectoryContents(const QString& path, const QString& root,
+        CompressionLevel level = AutoFull);
+
+    ErrorCode addDirectory(const QString& path,
+        CompressionLevel level = AutoFull);
+    ErrorCode addDirectory(const QString& path, const QString& root,
+        CompressionLevel level = AutoFull);
+    ErrorCode addDirectory(const QString& path, const QString& root,
+        CompressionOptions options, CompressionLevel level = AutoFull,
+        int* addedFiles = 0);
+
+    ErrorCode addFile(const QString& path,
+        CompressionLevel level = AutoFull);
+    ErrorCode addFile(const QString& path, const QString& root,
+        CompressionLevel level = AutoFull);
+    ErrorCode addFile(const QString& path, const QString& root,
+        CompressionOptions options,
+        CompressionLevel level = AutoFull);
+
+    ErrorCode addFiles(const QStringList& paths,
+        CompressionLevel level = AutoFull);
+    ErrorCode addFiles(const QStringList& paths, const QString& root,
+        CompressionLevel level = AutoFull);
+    ErrorCode addFiles(const QStringList& paths, const QString& root,
+        CompressionOptions options,
+        CompressionLevel level = AutoFull,
+        int* addedFiles = 0);
+
+	ErrorCode closeArchive();
+
+	QString formatError(ErrorCode c) const;
+
+private:
+	ZipPrivate* d;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(Zip::CompressionOptions)
+
+OSDAB_END_NAMESPACE
+
+#endif // OSDAB_ZIP__H

oracle/src/zip/zip_p.h

+/****************************************************************************
+** Filename: zip_p.h
+** Last updated [dd/mm/yyyy]: 27/03/2011
+**
+** pkzip 2.0 file compression.
+**
+** Some of the code has been inspired by other open source projects,
+** (mainly Info-Zip and Gilles Vollant's minizip).
+** Compression and decompression actually uses the zlib library.
+**
+** Copyright (C) 2007-2012 Angius Fabrizio. All rights reserved.
+**
+** This file is part of the OSDaB project (http://osdab.42cows.org/).
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See the file LICENSE.GPL that came with this software distribution or
+** visit http://www.gnu.org/copyleft/gpl.html for GPL licensing information.
+**
+**********************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Zip/UnZip API.  It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#ifndef OSDAB_ZIP_P__H
+#define OSDAB_ZIP_P__H
+
+#include "zip.h"
+#include "zipentry_p.h"
+
+#include <QtCore/QFileInfo>
+#include <QtCore/QObject>
+#include <QtCore/QtGlobal>
+
+#include <zlib/zconf.h>
+
+/*!
+	zLib authors suggest using larger buffers (128K or 256K) for (de)compression (especially for inflate())
+	we use a 256K buffer here - if you want to use this code on a pre-iceage mainframe please change it ;)
+*/
+#define ZIP_READ_BUFFER (256*1024)
+
+OSDAB_BEGIN_NAMESPACE(Zip)
+
+class ZipPrivate : public QObject
+{
+    Q_OBJECT
+
+public:
+    // uLongf from zconf.h
+    typedef uLongf crc_t;
+
+	ZipPrivate();
+	virtual ~ZipPrivate();
+
+	QMap<QString,ZipEntryP*>* headers;
+
+	QIODevice* device;
+    QFile* file;
+
+	char buffer1[ZIP_READ_BUFFER];
+	char buffer2[ZIP_READ_BUFFER];
+
+	unsigned char* uBuffer;
+
+    const crc_t* crcTable;
+
+	QString comment;
+	QString password;
+
+	Zip::ErrorCode createArchive(QIODevice* device);
+	Zip::ErrorCode closeArchive();
+	void reset();
+
+	bool zLibInit();
+
+    bool containsEntry(const QFileInfo& info) const;
+
+    Zip::ErrorCode addDirectory(const QString& path, const QString& root,
+        Zip::CompressionOptions options, Zip::CompressionLevel level,
+        int hierarchyLevel, int* addedFiles = 0);
+    Zip::ErrorCode addFiles(const QStringList& paths, const QString& root,
+        Zip::CompressionOptions options, Zip::CompressionLevel level,
+        int* addedFiles);
+
+    Zip::ErrorCode createEntry(const QFileInfo& file, const QString& root,
+        Zip::CompressionLevel level);
+	Zip::CompressionLevel detectCompressionByMime(const QString& ext);
+
+    inline quint32 updateChecksum(const quint32& crc, const quint32& val) const;
+
+	inline void encryptBytes(quint32* keys, char* buffer, qint64 read);
+
+	inline void setULong(quint32 v, char* buffer, unsigned int offset);
+	inline void updateKeys(quint32* keys, int c) const;
+	inline void initKeys(quint32* keys) const;
+    inline int decryptByte(quint32 key2) const;
+
+    inline QString extractRoot(const QString& p, Zip::CompressionOptions o);
+
+private slots:
+    void deviceDestroyed(QObject*);
+
+private:
+    int compressionStrategy(const QString& path, QIODevice& file) const;
+    Zip::ErrorCode deflateFile(const QFileInfo& fileInfo,
+        quint32& crc, qint64& written, const Zip::CompressionLevel& level, quint32** keys);
+    Zip::ErrorCode storeFile(const QString& path, QIODevice& file,
+        quint32& crc, qint64& written, quint32** keys);
+    Zip::ErrorCode compressFile(const QString& path, QIODevice& file,
+        quint32& crc, qint64& written, const Zip::CompressionLevel& level, quint32** keys);
+    Zip::ErrorCode do_closeArchive();
+    Zip::ErrorCode writeEntry(const QString& fileName, const ZipEntryP* h, quint32& szCentralDir);
+    Zip::ErrorCode writeCentralDir(quint32 offCentralDir, quint32 szCentralDir);
+};
+
+OSDAB_END_NAMESPACE
+
+#endif // OSDAB_ZIP_P__H

oracle/src/zip/zipentry_p.h

+/****************************************************************************
+** Filename: ZipEntryP.h
+** Last updated [dd/mm/yyyy]: 27/03/2011
+**
+** Wrapper for a ZIP local header.
+**
+** Some of the code has been inspired by other open source projects,
+** (mainly Info-Zip and Gilles Vollant's minizip).
+** Compression and decompression actually uses the zlib library.
+**
+** Copyright (C) 2007-2012 Angius Fabrizio. All rights reserved.
+**
+** This file is part of the OSDaB project (http://osdab.42cows.org/).
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See the file LICENSE.GPL that came with this software distribution or
+** visit http://www.gnu.org/copyleft/gpl.html for GPL licensing information.
+**
+**********************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Zip/UnZip API.  It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#ifndef OSDAB_ZIPENTRY_P__H
+#define OSDAB_ZIPENTRY_P__H
+
+#include <QtCore/QString>
+#include <QtCore/QtGlobal>
+
+OSDAB_BEGIN_NAMESPACE(Zip)
+
+class ZipEntryP
+{
+public:
+    ZipEntryP() :
+        lhOffset(0),
+        dataOffset(0),
+        gpFlag(),
+        compMethod(0),
+        modTime(),
+        modDate(),
+        crc(0),
+        szComp(0),
+        szUncomp(0),
+        absolutePath(),
+        fileSize(0),
+        lhEntryChecked(false)
+    {
+        gpFlag[0] = gpFlag[1] = 0;
+        modTime[0] = modTime[1] = 0;
+        modDate[0] = modDate[1] = 0;
+	}
+
+	quint32 lhOffset;			// Offset of the local header record for this entry
+	mutable quint32 dataOffset;	// Offset of the file data for this entry
+	unsigned char gpFlag[2];	// General purpose flag
+	quint16 compMethod;			// Compression method
+	unsigned char modTime[2];	// Last modified time
+	unsigned char modDate[2];	// Last modified date
+	quint32 crc;				// CRC32
+	quint32 szComp;				// Compressed file size
+	quint32 szUncomp;			// Uncompressed file size
+    QString comment;			// File comment
+
+    QString absolutePath;       // Internal use
+    qint64 fileSize;            // Internal use
+
+    mutable bool lhEntryChecked;		// Is true if the local header record for this entry has been parsed
+
+	inline bool isEncrypted() const { return gpFlag[0] & 0x01; }
+	inline bool hasDataDescriptor() const { return gpFlag[0] & 0x08; }
+};
+
+OSDAB_END_NAMESPACE
+
+#endif // OSDAB_ZIPENTRY_P__H

oracle/src/zip/zipglobal.cpp

+/****************************************************************************
+** Filename: zipglobal.cpp
+** Last updated [dd/mm/yyyy]: 06/02/2011
+**
+** pkzip 2.0 file compression.
+**
+** Some of the code has been inspired by other open source projects,
+** (mainly Info-Zip and Gilles Vollant's minizip).
+** Compression and decompression actually uses the zlib library.
+**
+** Copyright (C) 2007-2012 Angius Fabrizio. All rights reserved.
+**
+** This file is part of the OSDaB project (http://osdab.42cows.org/).
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See the file LICENSE.GPL that came with this software distribution or
+** visit http://www.gnu.org/copyleft/gpl.html for GPL licensing information.
+**
+**********************************************************************/
+
+#include "zipglobal.h"
+
+#if defined(Q_OS_WIN) || defined(Q_OS_WINCE) || defined(Q_OS_LINUX) || defined (Q_OS_MACX)
+#define OSDAB_ZIP_HAS_UTC
+#include <ctime>
+#else
+#undef OSDAB_ZIP_HAS_UTC
+#endif
+
+#if defined(Q_OS_WIN)
+#include <QtCore/qt_windows.h>
+#elif defined(Q_OS_LINUX) || defined(Q_OS_MACX)
+#include <utime.h>
+#endif
+
+OSDAB_BEGIN_NAMESPACE(Zip)
+
+/*! Returns the current UTC offset in seconds unless OSDAB_ZIP_NO_UTC is defined
+    and method is implemented for the current platform and 0 otherwise.
+*/
+int OSDAB_ZIP_MANGLE(currentUtcOffset)()
+{
+#if !(!defined OSDAB_ZIP_NO_UTC && defined OSDAB_ZIP_HAS_UTC)
+    return 0;
+#else
+    time_t curr_time_t;
+    time(&curr_time_t);
+
+#if defined Q_OS_WIN
+    struct tm _tm_struct;
+    struct tm* tm_struct = &_tm_struct;
+#else
+    struct tm* tm_struct = 0;
+#endif
+
+#if !defined(QT_NO_THREAD) && defined(_POSIX_THREAD_SAFE_FUNCTIONS)
+    // use the reentrant version of localtime() where available
+    tzset();
+    tm res;
+    tm_struct = gmtime_r(&curr_time_t, &res);
+#elif defined Q_OS_WIN && !defined Q_CC_MINGW
+    if (gmtime_s(tm_struct, &curr_time_t))
+        return 0;
+#else
+    tm_struct = gmtime(&curr_time_t);
+#endif
+
+    if (!tm_struct)
+        return 0;
+
+    const time_t global_time_t = mktime(tm_struct);
+
+#if !defined(QT_NO_THREAD) && defined(_POSIX_THREAD_SAFE_FUNCTIONS)
+    // use the reentrant version of localtime() where available
+    tm_struct = localtime_r(&curr_time_t, &res);
+#elif defined Q_OS_WIN && !defined Q_CC_MINGW
+    if (localtime_s(tm_struct, &curr_time_t))
+        return 0;
+#else
+    tm_struct = localtime(&curr_time_t);
+#endif
+
+    if (!tm_struct)
+        return 0;
+
+    const time_t local_time_t = mktime(tm_struct);
+
+    const int utcOffset = - qRound(difftime(global_time_t, local_time_t));
+    return tm_struct->tm_isdst > 0 ? utcOffset + 3600 : utcOffset;
+#endif // No UTC
+
+    return 0;
+}
+
+QDateTime OSDAB_ZIP_MANGLE(fromFileTimestamp)(const QDateTime& dateTime)
+{
+#if !defined OSDAB_ZIP_NO_UTC && defined OSDAB_ZIP_HAS_UTC
+    const int utc = OSDAB_ZIP_MANGLE(currentUtcOffset)();
+    return dateTime.toUTC().addSecs(utc);
+#else
+    return dateTime;
+#endif // OSDAB_ZIP_NO_UTC
+}
+
+bool OSDAB_ZIP_MANGLE(setFileTimestamp)(const QString& fileName, const QDateTime& dateTime)
+{
+    if (fileName.isEmpty())
+        return true;
+
+#ifdef Q_OS_WIN
+    HANDLE hFile = CreateFile(fileName.toStdWString().c_str(),
+        GENERIC_WRITE, FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 0);
+    if (hFile == INVALID_HANDLE_VALUE) {
+        return false;
+    }
+
+    SYSTEMTIME st;
+    FILETIME ft, ftLastMod;
+    const QDate date = dateTime.date();
+    const QTime time = dateTime.time();
+    st.wYear = date.year();
+    st.wMonth = date.month();
+    st.wDay = date.day();
+    st.wHour = time.hour();
+    st.wMinute = time.minute();
+    st.wSecond = time.second();
+    st.wMilliseconds = time.msec();
+
+    SystemTimeToFileTime(&st, &ft);
+    LocalFileTimeToFileTime(&ft, &ftLastMod);
+
+    const bool success = SetFileTime(hFile, NULL, NULL, &ftLastMod);
+    CloseHandle(hFile);
+    return success;
+
+#elif defined(Q_OS_LINUX) || defined(Q_OS_MACX)
+
+    struct utimbuf t_buffer;
+    t_buffer.actime = t_buffer.modtime = dateTime.toTime_t();
+    return utime(fileName.toLocal8Bit().constData(), &t_buffer) == 0;
+#endif
+
+    return true;
+}
+OSDAB_END_NAMESPACE

oracle/src/zip/zipglobal.h

+/****************************************************************************
+** Filename: zipglobal.h
+** Last updated [dd/mm/yyyy]: 27/03/2011
+**
+** pkzip 2.0 file compression.
+**
+** Some of the code has been inspired by other open source projects,
+** (mainly Info-Zip and Gilles Vollant's minizip).
+** Compression and decompression actually uses the zlib library.
+**
+** Copyright (C) 2007-2012 Angius Fabrizio. All rights reserved.
+**
+** This file is part of the OSDaB project (http://osdab.42cows.org/).
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See the file LICENSE.GPL that came with this software distribution or
+** visit http://www.gnu.org/copyleft/gpl.html for GPL licensing information.
+**
+**********************************************************************/
+
+#ifndef OSDAB_ZIPGLOBAL__H
+#define OSDAB_ZIPGLOBAL__H
+
+#include <QtCore/QDateTime>
+#include <QtCore/QtGlobal>
+
+/* If you want to build the OSDaB Zip code as
+   a library, define OSDAB_ZIP_LIB in the library's .pro file and
+   in the libraries using it OR remove the #ifndef OSDAB_ZIP_LIB
+   define below and leave the #else body. Also remember to define
+   OSDAB_ZIP_BUILD_LIB in the library's project).
+*/
+
+#ifndef OSDAB_ZIP_LIB
+# define OSDAB_ZIP_EXPORT
+#else
+# if defined(OSDAB_ZIP_BUILD_LIB)
+#   define OSDAB_ZIP_EXPORT Q_DECL_EXPORT
+# else
+#   define OSDAB_ZIP_EXPORT Q_DECL_IMPORT
+# endif
+#endif
+
+#ifdef OSDAB_NAMESPACE
+#define OSDAB_BEGIN_NAMESPACE(ModuleName) namespace Osdab { namespace ModuleName {
+#else
+#define OSDAB_BEGIN_NAMESPACE(ModuleName)
+#endif
+
+#ifdef OSDAB_NAMESPACE
+#define OSDAB_END_NAMESPACE } }
+#else
+#define OSDAB_END_NAMESPACE
+#endif
+
+#ifndef OSDAB_NAMESPACE
+#define OSDAB_ZIP_MANGLE(x) zip_##x
+#else
+#define OSDAB_ZIP_MANGLE(x) x
+#endif
+
+OSDAB_BEGIN_NAMESPACE(Zip)
+
+OSDAB_ZIP_EXPORT int OSDAB_ZIP_MANGLE(currentUtcOffset)();
+OSDAB_ZIP_EXPORT QDateTime OSDAB_ZIP_MANGLE(fromFileTimestamp)(const QDateTime& dateTime);
+OSDAB_ZIP_EXPORT bool OSDAB_ZIP_MANGLE(setFileTimestamp)(const QString& fileName, const QDateTime& dateTime);
+
+OSDAB_END_NAMESPACE
+
+#endif // OSDAB_ZIPGLOBAL__H