r27015 - trunk/freenet/src/freenet/clients/http/filter

Author: kurmiashish
Date: 2009-04-18 19:30:56 +0000 (Sat, 18 Apr 2009)
New Revision: 27015

Removed:
   trunk/freenet/src/freenet/clients/http/filter/BMPFilter.java
Log:
Deleting BMPFilter.java to upload the latest version.

Deleted: trunk/freenet/src/freenet/clients/http/filter/BMPFilter.java
===================================================================
--- trunk/freenet/src/freenet/clients/http/filter/BMPFilter.java	2009-04-18 19:30:42 UTC (rev 27014)
+++ trunk/freenet/src/freenet/clients/http/filter/BMPFilter.java	2009-04-18 19:30:56 UTC (rev 27015)
@@ -1,177 +0,0 @@
-/* This code is part of Freenet. It is distributed under the GNU General
- * Public License, version 2 (or at your option any later version). See
- * http://www.gnu.org/ for further details of the GPL. */
-package freenet.clients.http.filter;
-
-import java.io.BufferedInputStream;
-import java.io.DataInputStream;
-import java.io.EOFException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.Arrays;
-import java.util.HashMap;
-
-import freenet.l10n.L10n;
-import freenet.support.HTMLNode;
-import freenet.support.api.Bucket;
-import freenet.support.api.BucketFactory;
-import freenet.support.io.Closer;
-
-/**
- * This class would verify whether the BMP header is valid or not
- Reference:
- http://www.fastgraph.com/help/bmp_header_format.html
- http://en.wikipedia.org/wiki/BMP_file_format
- */
-public class BMPFilter implements ContentDataFilter {
-
-	
-	static final byte[] bmpHeaderwindows =
-		{ (byte)'B', (byte)'M'};
-	
-		static final byte[] bmpHeaderos2bArray =
-		{ (byte)'B', (byte)'A'};
-
-		static final byte[] bmpHeaderos2cIcon =
-		{ (byte)'C', (byte)'I'};
-
-
-		static final byte[] bmpHeaderos2cPointer =
-		{ (byte)'C', (byte)'P'};
-
-
-		static final byte[] bmpHeaderos2Icon =
-		{ (byte)'I', (byte)'C'};
-
-
-		static final byte[] bmpHeaderos2Pointer =
-		{ (byte)'P', (byte)'T'};
-
-
-    private int unsignedByte(byte b)
-    {
-        if (b >= 0)
-            return b;
-        else
-            return 256+b;
-    }
-
-
-  public int readInt(DataInputStream dis) throws IOException
-  {
-    int result;
-    byte[] data = new byte[4];
-
-     result = dis.read(data);
-     if (result < 0) // end of file reached
-         throw new EOFException();
-
-     result = (unsignedByte(data[2]) << 16) | (unsignedByte(data[1]) << 8) | unsignedByte(data[0]);
-     result|=(unsignedByte(data[3]) << 24);
-
-     return result;
-  }
-
-
-     public int readShort(DataInputStream dis) throws IOException
-    {
-        int result = dis.read();
-        if (result < 0)// end of file reached
-            throw new EOFException();
-
-        int r2 = dis.read();
-        if (r2 < 0)// end of file reached
-            throw new EOFException();
-
-        return result | (r2*256);
-    }
-
-	
-	public Bucket readFilter(Bucket data, BucketFactory bf, String charset, HashMap<String, String> otherParams,
-	        FilterCallback cb) throws DataFilterException, IOException {
-		if(data.size() < 54) { // Size of the bmp header is 54
-			throwHeaderError(l10n("Too short file"), l10n("The file is too short to contain a bmp header"));
-		}
-		InputStream is = data.getInputStream();
-		BufferedInputStream bis = new BufferedInputStream(is);
-		DataInputStream dis = new DataInputStream(bis);
-		try {
-			
-		byte[] StartWord = new byte[2];
-		dis.readFully(StartWord);
-		if((!Arrays.equals(StartWord, bmpHeaderwindows)) && (!Arrays.equals(StartWord, bmpHeaderos2bArray)) && (!Arrays.equals(StartWord, bmpHeaderos2cIcon)) && (!Arrays.equals(StartWord, bmpHeaderos2cPointer)) && (!Arrays.equals(StartWord, bmpHeaderos2Icon)) && (!Arrays.equals(StartWord, bmpHeaderos2Pointer))) {	//Checking the first word
-				throwHeaderError(l10n("Invalid start word"), l10n("invalidHeader"));
-		}
-			
-			
-			
-		int fileSize = readInt(dis); // read total file size
-		byte[] skipbytes=new byte[4];
-		dis.readFully(skipbytes);
-        int headerSize = readInt(dis); // read file header size or pixel offset
-
-
-		int size_bitmapinfoheader=readInt(dis);
-		if(size_bitmapinfoheader!=40) {
-					throwHeaderError(l10n("Invalid Bit Map info header size"), l10n("Size of bitmap info header is not 40"));
-		}
-
-
-        int imageWidth = readInt(dis); // read width
-        int imageHeight = readInt(dis); // read height
-		if(imageWidth<0 || imageHeight<0) {
-					throwHeaderError(l10n("Invalid Dimensions"), l10n("The image has invalid width or height"));
-		}
-
-
-        
-		int no_plane=readShort(dis);
-		if(no_plane<0) {
-					throwHeaderError(l10n("Invalid no of plannes"), l10n("The image has "+no_plane+" planes"));
-		}
-				
-
-        int bitDepth = readShort(dis);
-		if(bitDepth<0) {
-					throwHeaderError(l10n("Invalid bit depth"), l10n("The bit depth field is set to"+bitDepth));
-		}
-
-		int compression_type=readInt(dis);
-		if( !(compression_type>=0 && compression_type<=3) ) {
-					throwHeaderError(l10n("Invalid Compression type"), l10n("Compression type field is set to "+compression_type+" instead of 0-3"));
-		}
-			
-		int imagedatasize=readInt(dis);
-		if(fileSize!=headerSize+imagedatasize) {
-					throwHeaderError(l10n("Invalid File size"), l10n("File size is not matching to headersize+ imagedatasize"));
-		}
-			
-		System.out.println("filesize="+fileSize+" headerByteCount="+headerSize+" width="+imageWidth+" height="+imageHeight+" bitDepth="+bitDepth+" compressionType="+compression_type+" bytesOfPixelData="+imagedatasize);
-
-			dis.close();
-		} finally {
-			Closer.close(dis);
-		}
-		return data;
-	}
-
-	private static String l10n(String key) {
-		return L10n.getString("BMPFilter."+key);
-	}
-
-	private void throwHeaderError(String shortReason, String reason) throws DataFilterException {
-		// Throw an exception
-		String message = l10n("notBMP");
-		if(reason != null) message += ' ' + reason;
-		if(shortReason != null)
-			message += " - (" + shortReason + ')';
-		throw new DataFilterException(shortReason, shortReason,
-				"<p>"+message+"</p>", new HTMLNode("p").addChild("#", message));
-	}
-
-	public Bucket writeFilter(Bucket data, BucketFactory bf, String charset, HashMap<String, String> otherParams,
-	        FilterCallback cb) throws DataFilterException, IOException {
-		return null;
-	}
-
-}