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/*
* (C) 2002 Paul Wilkinson wilko@users.sourceforge.net
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*
* Utils.java
*
* Created on 3 May 2002, 17:19
*/
package com.wilko.jaim;
/**
* @author paulw
* @version $Revision: 1.4 $
*/
public class Utils {
private static final String roastKey = "Tic/Toc";
private static final int roastLen = 7;
/**
* convert a buddy name to normalised format - remove spaces and convert to lower case
*
* @param input The un-normalised buddy name
* @return the normalised buddy name
*/
public static String normalise(java.lang.String input) {
StringBuffer output = new StringBuffer();
String temp = input.toLowerCase();
for (int i = 0; i < input.length(); i++) {
char c = temp.charAt(i);
if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'z')) {
output.append(c);
}
}
return (output.toString());
}
/**
* Roast a password using the AOL roasting protocol
*
* @param password The password to be roasted
* @return The roasted password
*/
public static String roast(java.lang.String password) {
char[] hexChars = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
StringBuffer temppw = new StringBuffer();
temppw.append("0x");
for (int i = 0; i < password.length(); i++) {
int roastedByte = password.charAt(i) ^ roastKey.charAt(i % roastLen);
temppw.append(hexChars[(roastedByte >> 4) & 0x0f]);
temppw.append(hexChars[roastedByte & 0x0f]);
}
return (temppw.toString());
}
/**
* This method performs a simple HTML strip on text. It looks for < characters and then skips input until a matching > is found.
* This may fail if the HTML tag contains an embedded '>'
*
* @param input The text to have HTML stripped
* @return The text stripped of html
*/
public static String stripHTML(java.lang.String input) {
StringBuffer output = new StringBuffer();
boolean inHTML = false;
for (int i = 0; i < input.length(); i++) {
char c = input.charAt(i);
if (c == '<') {
inHTML = true;
} else {
if (c == '>') {
inHTML = false;
} else {
if (!inHTML) {
output.append(c);
}
}
}
}
return (output.toString());
}
/**
* Encode a text message so that it is suitable for transmission using toc_send_im
*
* @param input The text to be encoded
* @return The encoded text
*/
public static String encodeText(String input) {
StringBuffer output = new StringBuffer("\"");
for (int i = 0; i < input.length(); i++) {
char c = input.charAt(i);
switch (c) {
case '\"':
case '(':
case ')':
case '$':
case '\\':
case '{':
case '}':
case '[':
case ']':
output.append('\\');
break;
}
output.append(c);
}
output.append('\"');
return (output.toString());
}
}
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