org.owasp.encoder.ASCIIBits Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of encoder Show documentation
Show all versions of encoder Show documentation
The OWASP Encoders package is a collection of high-performance low-overhead
contextual encoders, that when utilized correctly, is an effective tool in
preventing Web Application security vulnerabilities such as Cross-Site
Scripting.
// Copyright (c) 2012 Jeff Ichnowski
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// * Redistributions of source code must retain the above
// copyright notice, this list of conditions and the following
// disclaimer.
//
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// * Neither the name of the OWASP nor the names of its
// contributors may be used to endorse or promote products
// derived from this software without specific prior written
// permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
// OF THE POSSIBILITY OF SUCH DAMAGE.
package org.owasp.encoder;
/**
* ASCIIBits - Small helper class for building up 128-bit bit-mask (2 longs)
* to be used testing lower-ASCII characters. It helps make some other code
* easier to read. It is not intended to be public.
*/
class ASCIIBits {
/** Lower 64 bits. */
long _lowerMask;
/** Upper 64 bits. */
long _upperMask;
/**
* Sets a bit to 1 for each character in the argument string. No checking
* is performed to see if characters are in the valid range 0..127.
*
* @param chars the characters to set to 1.
* @return {@code this}
*/
ASCIIBits set(String chars) {
for (int i=0, n=chars.length() ; i