Added KDE3 version of kvirc

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/kvirc@1095341 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 160 insertions, 0 deletions

diff --git a/src/kvilib/ext/kvi_crypt.h b/src/kvilib/ext/kvi_crypt.h
new file mode 100644
index 00000000..ae3bc4f0
--- /dev/null
+++ b/src/kvilib/ext/kvi_crypt.h
@@ -0,0 +1,160 @@
+#ifndef _KVI_CRYPT_H_
+#define _KVI_CRYPT_H_
+
+//=============================================================================
+//
+//   File : kvi_crypt.h
+//   Creation date : Fri Nov 03 2000 01:45:21 CEST by Szymon Stefanek
+//
+//   This file is part of the KVirc irc client distribution
+//   Copyright (C) 1999-2007 Szymon Stefanek (pragma at kvirc dot net)
+//
+//   This program is FREE software. You can redistribute it and/or
+//   modify it under the terms of the GNU General Public License
+//   as published by the Free Software Foundation; either version 2
+//   of the License, or (at your opinion) any later version.
+//
+//   This program is distributed in the HOPE that it will be USEFUL,
+//   but WITHOUT ANY WARRANTY; without even the implied warranty of
+//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+//   See the GNU General Public License for more details.
+//
+//   You should have received a copy of the GNU General Public License
+//   along with this program. If not, write to the Free Software Foundation,
+//   Inc. ,51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+//
+//=============================================================================
+
+#include "kvi_settings.h"
+
+
+//
+// Base class for all IRC crypt engines
+// These intend to encrypt plain text into something
+// that can be sent through the IRC protocol...
+// so it should not contain NULL, CR , LF and other
+// similar stuff...
+//
+
+
+#include "kvi_qstring.h"
+#include "kvi_string.h"
+#include "kvi_heapobject.h"
+#include "kvi_pointerhashtable.h"
+
+#include <qobject.h>
+
+#ifdef COMPILE_CRYPT_SUPPORT
+	class KviCryptEngine;
+
+	typedef KviCryptEngine * (*crypt_engine_allocator_func)();
+	typedef void (*crypt_engine_deallocator_func)(KviCryptEngine *);
+#endif //COMPILE_CRYPT_SUPPORT
+
+	// we must include this declaration to make moc happy even
+	// if we're not compiling the crypt support
+	
+	class KVILIB_API KviCryptEngine : public QObject, public KviHeapObject
+	{
+		Q_OBJECT
+		friend class KviCryptEngineManager;
+	public:
+		KviCryptEngine();
+		virtual ~KviCryptEngine();
+	
+#ifdef COMPILE_CRYPT_SUPPORT
+	private:
+		crypt_engine_deallocator_func m_deallocFunc;    // this is accessed by KviCryptEngineManager only
+		QString                       m_szLastError;
+		int                           m_iMaxEncryptLen;
+	public:
+		void setMaxEncryptLen(int m){ m_iMaxEncryptLen = m; };
+		int maxEncryptLen(){ return m_iMaxEncryptLen; };
+		virtual bool init(const char * encKey,int encKeyLen,const char * decKey,int decKeyLen);
+		//
+		// Encrypts utf8 plainText and returns the encrypted
+		// data in outBuffer. The encrypted data must be
+		// suitable for sending thru an IRC (eventually DCC
+		// that is less restrictive) connection and must be utf8 encoded: so
+		// no NULL, CR and LF in the output.
+		// 0x01 should be also avoided since
+		// it is the CTCP delimiter.
+		// Converting the result in a HEX string
+		// is a good trick...also Base64 could be used.
+		// Should return false in case of an error.
+		// Theoretically we could allow NULLs in plainText
+		// but this is not the case of KVIrc.
+		//
+		enum EncryptResult { Encrypted, Encoded, EncryptError };
+		virtual EncryptResult encrypt(const char * plainText,KviStr &outBuffer);
+		//
+		// Decrypts the utf8 data in inBuffer and puts the decrypted utf8
+		// stuff in plainText. inBuffer is the thingie
+		// that we got from outBuffer of encrupt() so it
+		// follows the same rules.
+		// Should return false in case of error.
+		//
+		enum DecryptResult { DecryptOkWasEncrypted, DecryptOkWasEncoded, DecryptOkWasPlainText, DecryptError };
+		virtual DecryptResult decrypt(const char * inBuffer,KviStr &plainText);
+		//
+		// Returns the string containing the description
+		// of the last error or an empty string if there
+		// was no error after the last init() call.
+		//
+		const QString &lastError(){ return m_szLastError; };
+	protected:
+		//
+		// The following two should have clear meaning
+		//
+		void clearLastError(){ m_szLastError = ""; };
+		void setLastError(const QString &err){ m_szLastError = err; };
+#endif //COMPILE_CRYPT_SUPPORT
+	};
+
+#ifdef COMPILE_CRYPT_SUPPORT
+	#define KVI_CRYPTENGINE_CAN_ENCRYPT 1
+	#define KVI_CRYPTENGINE_CAN_DECRYPT 2
+	#define KVI_CRYPTENGINE_WANT_ENCRYPT_KEY 4
+	#define KVI_CRYPTENGINE_WANT_DECRYPT_KEY 8
+
+	class KVILIB_API KviCryptEngineDescription : public KviHeapObject
+	{
+	public:
+		KviCryptEngineDescription(){};
+		virtual ~KviCryptEngineDescription(){};
+	public:
+		QString                       szName;           // engine name
+		QString                       szDescription;    // details
+		QString                       szAuthor;         // algorithm author
+		int                           iFlags;           // properties
+		crypt_engine_allocator_func   allocFunc;        // engine allocator
+		crypt_engine_deallocator_func deallocFunc;      // deallocation function (if called from outside the origin module)
+		void *                        providerHandle;   // used to identify the provider module
+	};
+
+
+	class KVILIB_API KviCryptEngineManager
+	{
+	public:
+		KviCryptEngineManager();
+		virtual ~KviCryptEngineManager();
+	private:
+		KviPointerHashTable<QString,KviCryptEngineDescription> * m_pEngineDict;
+	public:
+		const KviPointerHashTable<QString,KviCryptEngineDescription> * engineDict(){ return m_pEngineDict; };
+		void registerEngine(KviCryptEngineDescription * d);
+		void unregisterEngine(const QString &szName);
+		void unregisterEngines(void * providerHandle);
+		//
+		// Allocates a crypt engine
+		// Please note that the engine may be deleted from outside
+		// so you'd better connect the "destroyed" signal
+		//
+		KviCryptEngine * allocateEngine(const QString &szName);
+		void deallocateEngine(KviCryptEngine * e);
+	};
+
+#endif //COMPILE_CRYPT_SUPPORT
+
+
+#endif //!_KVI_CRYPT_H_