1 files changed, 103 insertions, 0 deletions
diff --git a/libktorrent/datachecker/singledatachecker.cpp b/libktorrent/datachecker/singledatachecker.cpp
new file mode 100644
index 0000000..0579338
--- /dev/null
+++ b/libktorrent/datachecker/singledatachecker.cpp
@@ -0,0 +1,103 @@
+/***************************************************************************
+ *   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.             *
+ ***************************************************************************/
+#include <klocale.h>
+#include <kapplication.h>
+#include <util/log.h>
+#include <util/file.h>
+#include <util/error.h>
+#include <util/array.h>
+#include <util/functions.h>
+#include <torrent/globals.h>
+#include <torrent/torrent.h>
+#include "singledatachecker.h"
+
+namespace bt
+{
+
+	SingleDataChecker::SingleDataChecker(): DataChecker()
+	{}
+
+
+	SingleDataChecker::~SingleDataChecker()
+	{}
+
+
+	void SingleDataChecker::check(const QString& path, const Torrent& tor,const QString &)
+	{
+		// open the file
+		Uint32 num_chunks = tor.getNumChunks();
+		Uint32 chunk_size = tor.getChunkSize();
+		File fptr;
+		if (!fptr.open(path,"rb"))
+		{
+			throw Error(i18n("Cannot open file : %1 : %2")
+					.arg(path).arg( fptr.errorString()));
+		}
+
+		// initialize the bitsets
+		downloaded = BitSet(num_chunks);
+		failed = BitSet(num_chunks);
+		
+		TimeStamp last_update_time = bt::GetCurrentTime();
+		
+		// loop over all chunks
+		Array<Uint8> buf(chunk_size);
+		for (Uint32 i = 0;i < num_chunks;i++)
+		{
+			if (listener)
+			{
+				listener->progress(i,num_chunks);
+				if (listener->needToStop()) // if we need to stop just return
+					return;
+			}
+			
+			TimeStamp now = bt::GetCurrentTime();
+			if (now - last_update_time > 1000)
+			{
+				Out(SYS_DIO|LOG_DEBUG) << "Checked " << i << " chunks" << endl;
+				last_update_time = now;
+			}
+	
+			if (!fptr.eof())
+			{
+				// read the chunk
+				Uint32 size = i == num_chunks - 1 && tor.getFileLength() % tor.getChunkSize() > 0 ?
+						tor.getFileLength() % tor.getChunkSize() : (Uint32)tor.getChunkSize();
+				
+				fptr.seek(File::BEGIN,(Int64)i*tor.getChunkSize());
+				fptr.read(buf,size);
+				// generate and test hash
+				SHA1Hash h = SHA1Hash::generate(buf,size);
+				bool ok = (h == tor.getHash(i));
+				downloaded.set(i,ok);
+				failed.set(i,!ok);
+			}
+			else
+			{
+				// at end of file so set to default values for a failed chunk
+				downloaded.set(i,false);
+				failed.set(i,true);
+			}
+			if (listener)
+				listener->status(failed.numOnBits(),downloaded.numOnBits());
+		}
+	}
+
+}