135 lines
4 KiB
Java
135 lines
4 KiB
Java
/*
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* (C) 2002 Paul Wilkinson wilko@users.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/*
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* Utils.java
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*
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* Created on 3 May 2002, 17:19
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*/
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package com.wilko.jaim;
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/**
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* @author paulw
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* @version $Revision: 1.4 $
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*/
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public class Utils {
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private static final String roastKey = "Tic/Toc";
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private static final int roastLen = 7;
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/**
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* convert a buddy name to normalised format - remove spaces and convert to lower case
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*
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* @param input The un-normalised buddy name
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* @return the normalised buddy name
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*/
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public static String normalise(java.lang.String input) {
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StringBuffer output = new StringBuffer();
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String temp = input.toLowerCase();
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for (int i = 0; i < input.length(); i++) {
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char c = temp.charAt(i);
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if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'z')) {
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output.append(c);
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}
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}
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return (output.toString());
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}
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/**
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* Roast a password using the AOL roasting protocol
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*
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* @param password The password to be roasted
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* @return The roasted password
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*/
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public static String roast(java.lang.String password) {
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char[] hexChars = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
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StringBuffer temppw = new StringBuffer();
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temppw.append("0x");
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for (int i = 0; i < password.length(); i++) {
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int roastedByte = password.charAt(i) ^ roastKey.charAt(i % roastLen);
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temppw.append(hexChars[(roastedByte >> 4) & 0x0f]);
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temppw.append(hexChars[roastedByte & 0x0f]);
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}
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return (temppw.toString());
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}
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/**
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* This method performs a simple HTML strip on text. It looks for < characters and then skips input until a matching > is found.
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* This may fail if the HTML tag contains an embedded '>'
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*
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* @param input The text to have HTML stripped
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* @return The text stripped of html
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*/
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public static String stripHTML(java.lang.String input) {
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StringBuffer output = new StringBuffer();
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boolean inHTML = false;
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for (int i = 0; i < input.length(); i++) {
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char c = input.charAt(i);
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if (c == '<') {
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inHTML = true;
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} else {
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if (c == '>') {
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inHTML = false;
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} else {
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if (!inHTML) {
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output.append(c);
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}
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}
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}
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}
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return (output.toString());
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}
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/**
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* Encode a text message so that it is suitable for transmission using toc_send_im
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*
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* @param input The text to be encoded
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* @return The encoded text
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*/
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public static String encodeText(String input) {
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StringBuffer output = new StringBuffer("\"");
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for (int i = 0; i < input.length(); i++) {
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char c = input.charAt(i);
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switch (c) {
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case '\"':
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case '(':
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case ')':
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case '$':
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case '\\':
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case '{':
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case '}':
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case '[':
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case ']':
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output.append('\\');
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break;
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}
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output.append(c);
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}
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output.append('\"');
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return (output.toString());
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}
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}
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