1 files changed, 150 insertions, 0 deletions
diff --git a/libktorrent/torrent/bencoder.h b/libktorrent/torrent/bencoder.h
new file mode 100644
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+++ b/libktorrent/torrent/bencoder.h
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+/***************************************************************************
+ *   Copyright (C) 2005 by Joris Guisson                                   *
+ *   joris.guisson@gmail.com                                               *
+ *                                                                         *
+ *   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 option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU 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.             *
+ ***************************************************************************/
+#ifndef BTBENCODER_H
+#define BTBENCODER_H
+
+
+#include <util/file.h>
+
+
+namespace bt
+{
+	class File;
+
+	/**
+	 * @author Joris Guisson
+	 *
+	 * Interface for classes which wish to receive the output from a BEncoder.
+	 */
+	class BEncoderOutput
+	{
+	public:
+		virtual ~BEncoderOutput() {}
+		/**
+		 * Write a string of characters.
+		 * @param str The string
+		 * @param len The length of the string
+		 */
+		virtual void write(const char* str,Uint32 len) = 0;
+	};
+
+	/**
+	 * Writes the output of a bencoder to a file
+	 */
+	class BEncoderFileOutput : public BEncoderOutput
+	{
+		File* fptr;
+	public:
+		BEncoderFileOutput(File* fptr);
+
+		void write(const char* str,Uint32 len);
+	};
+	
+	/**
+	 * Write the output of a BEncoder to a QByteArray
+	 */
+	class BEncoderBufferOutput : public BEncoderOutput
+	{
+		QByteArray & data;
+		Uint32 ptr;
+	public:
+		BEncoderBufferOutput(QByteArray & data);
+
+		void write(const char* str,Uint32 len);
+	};
+
+
+	/**
+	 * @author Joris Guisson
+	 * @brief Helper class to b-encode stuff.
+	 * 
+	 * This class b-encodes data. For more details about b-encoding, see
+	 * the BitTorrent protocol docs. The data gets written to a BEncoderOutput
+	 * thing.
+	 */
+	class BEncoder 
+	{
+		BEncoderOutput* out;
+		bool del;
+	public:
+		/**
+		 * Constructor, output gets written to a file.
+		 * @param fptr The File to write to
+		 */
+		BEncoder(File* fptr);
+
+		
+		/**
+		 * Constructor, output gets written to a BEncoderOutput object.
+		 * @param out The BEncoderOutput
+		 */
+		BEncoder(BEncoderOutput* out);
+		virtual ~BEncoder();
+
+		/**
+		 * Begin a dictionary.Should have a corresponding end call.
+		 */
+		void beginDict();
+		
+		/**
+		 * Begin a list. Should have a corresponding end call.
+		 */
+		void beginList();
+		
+		/**
+		 * Write an int
+		 * @param val 
+		 */
+		void write(Uint32 val);
+
+		/**
+		 * Write an int64
+		 * @param val
+		 */
+		void write(Uint64 val);
+		
+		/**
+		 * Write a string
+		 * @param str 
+		 */
+		void write(const QString & str);
+		
+		/**
+		 * Write a QByteArray
+		 * @param data 
+		 */
+		void write(const QByteArray & data);
+
+		/**
+		 * Write a data array
+		 * @param data
+		 * @param size of data
+		 */
+		void write(const Uint8* data,Uint32 size);
+		
+		/**
+		 * End a beginDict or beginList call.
+		 */
+		void end();
+	};
+
+}
+
+#endif