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From lar...@apache.org
Subject cvs commit: jakarta-tomcat-connectors/util/java/org/apache/tomcat/util/buf UDecoder.java
Date Sat, 02 Feb 2002 04:46:01 GMT
larryi      02/02/01 20:46:01

  Modified:    util/java/org/apache/tomcat/util/buf UDecoder.java
  Log:
  In a query string, '+' is a substitute for space, but not in the path portion of a
  URL.  Add methods that include a "query" parameter to control if the '+'
  should be converted to a space.
  
  Revision  Changes    Path
  1.5       +46 -10    jakarta-tomcat-connectors/util/java/org/apache/tomcat/util/buf/UDecoder.java
  
  Index: UDecoder.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-connectors/util/java/org/apache/tomcat/util/buf/UDecoder.java,v
  retrieving revision 1.4
  retrieving revision 1.5
  diff -u -r1.4 -r1.5
  --- UDecoder.java	31 Dec 2001 18:20:04 -0000	1.4
  +++ UDecoder.java	2 Feb 2002 04:46:01 -0000	1.5
  @@ -78,9 +78,18 @@
       {
       }
   
  +    /** URLDecode, will modify the source.  Includes converting
  +     *  '+' to ' '.
  +     */
  +    public void convert( ByteChunk mb )
  +        throws IOException
  +    {
  +        convert(mb, true);
  +    }
  +
       /** URLDecode, will modify the source.
        */
  -    public void convert(ByteChunk mb)
  +    public void convert( ByteChunk mb, boolean query )
   	throws IOException
       {
   	int start=mb.getOffset();
  @@ -88,7 +97,9 @@
   	int end=mb.getEnd();
   
   	int idx= mb.indexOf( buff, start, end, '%' );
  -	int idx2= mb.indexOf( buff, start, end, '+' );
  +        int idx2=-1;
  +        if( query )
  +            idx2= mb.indexOf( buff, start, end, '+' );
   	if( idx<0 && idx2<0 ) {
   	    return;
   	}
  @@ -98,7 +109,7 @@
   	if( idx < 0 ) idx=idx2;
   
   	for( int j=idx; j<end; j++, idx++ ) {
  -	    if( buff[ j ] == '+' ) {
  +	    if( buff[ j ] == '+' && query) {
   		buff[idx]= (byte)' ' ;
   	    } else if( buff[ j ] != '%' ) {
   		buff[idx]= buff[j];
  @@ -127,17 +138,28 @@
       // XXX What do we do about charset ????
   
       /** In-buffer processing - the buffer will be modified
  +     *  Includes converting  '+' to ' '.
        */
       public void convert( CharChunk mb )
   	throws IOException
       {
  +        convert(mb, true);
  +    }
  +
  +    /** In-buffer processing - the buffer will be modified
  +     */
  +    public void convert( CharChunk mb, boolean query )
  +	throws IOException
  +    {
   	//	log( "Converting a char chunk ");
   	int start=mb.getOffset();
   	char buff[]=mb.getBuffer();
   	int cend=mb.getEnd();
   
   	int idx= mb.indexOf( buff, start, cend, '%' );
  -	int idx2= mb.indexOf( buff, start, cend, '+' );
  +        int idx2=-1;
  +        if( query )
  +            idx2= mb.indexOf( buff, start, cend, '+' );
   	if( idx<0 && idx2<0 ) {
   	    return;
   	}
  @@ -146,7 +168,7 @@
   	if( idx < 0 ) idx=idx2;
   
   	for( int j=idx; j<cend; j++, idx++ ) {
  -	    if( buff[ j ] == '+' ) {
  +	    if( buff[ j ] == '+' && query ) {
   		buff[idx]=( ' ' );
   	    } else if( buff[ j ] != '%' ) {
   		buff[idx]=buff[j];
  @@ -170,24 +192,33 @@
       }
   
       /** URLDecode, will modify the source
  +     *  Includes converting  '+' to ' '.
        */
       public void convert(MessageBytes mb)
   	throws IOException
       {
  +        convert(mb, true);
  +    }
  +
  +    /** URLDecode, will modify the source
  +     */
  +    public void convert(MessageBytes mb, boolean query)
  +	throws IOException
  +    {
   	
   	switch (mb.getType()) {
   	case MessageBytes.T_STR:
   	    String strValue=mb.toString();
   	    if( strValue==null ) return;
  -	    mb.setString( convert( strValue ));
  +	    mb.setString( convert( strValue, query ));
   	    break;
   	case MessageBytes.T_CHARS:
   	    CharChunk charC=mb.getCharChunk();
  -	    convert( charC );
  +	    convert( charC, query );
   	    break;
   	case MessageBytes.T_BYTES:
   	    ByteChunk bytesC=mb.getByteChunk();
  -	    convert( bytesC );
  +	    convert( bytesC, query );
   	    break;
   	}
       }
  @@ -196,9 +227,14 @@
       // 
       public final String convert(String str)
       {
  +        return convert(str, true);
  +    }
  +
  +    public final String convert(String str, boolean query)
  +    {
           if (str == null)  return  null;
   	
  -	if( str.indexOf( '+' ) <0 && str.indexOf( '%' ) < 0 )
  +	if( (!query || str.indexOf( '+' ) < 0) && str.indexOf( '%' ) < 0 )
   	    return str;
   	
           StringBuffer dec = new StringBuffer();    // decoded string output
  @@ -212,7 +248,7 @@
               // look ahead to next URLencoded metacharacter, if any
               for (laPos = strPos; laPos < strLen; laPos++) {
                   char laChar = str.charAt(laPos);
  -                if ((laChar == '+') || (laChar == '%')) {
  +                if ((laChar == '+' && query) || (laChar == '%')) {
                       break;
                   }
               }
  
  
  

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