/*
* © Copyright IBM Corp. 2012-2013
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.ibm.commons.util;
import java.net.URLDecoder;
/**
* @deprecated
* @ibm-not-published
*/
public class UrlUtil {
/**
* Takes a relative url in the form <code>mypath/mypage.xsp?foo=bar</code> and
* adds the parameters to the portlet action URL.
* The submitted URL is returned stripped of any parameters.
* @param receiver a receiver that will be filled with parameter values
* @param url the URL being encoded
* @return the URL minus any parameters
* @ibm-api
*/
public static String addParametersAndReturnUrl(ParameterReceiver receiver, String url) {
//TODO: need to handle URL encoded characters? (e.g. mypath/myfile.xsp?some%20key=value
int n = url.indexOf('?');
if (n >= 0) {
if(n<url.length()) {
String parameters = url.substring(n + 1);
url = url.substring(0, n);
addParameters(receiver, parameters);
}
}
return url;
}
private static void addParameters(ParameterReceiver receiver, String params) {
int last = 0;
int n;
while (true) {
if(last>=params.length()) {
break;
}
n = params.indexOf('&', last);
if (n < 0) {
addParameter(receiver, params, last, params.length());
break;
}
addParameter(receiver, params, last, n);
last = n+1;
}
}
private static void addParameter(ParameterReceiver receiver, String params, int start, int end) {
int n;
n = params.indexOf('=', start);
if (n < 0 || n > end) {
n = end;
}
String key = params.substring(start, n);
String value;
if((n+1)>=end) {
value = ""; //$NON-NLS-1$;
} else {
value = params.substring(n + 1, end);
}
if(key.length()>0) {
//PRID6WWSBT
//decode method should match the encode method used by XSPUrl
//at time of writing, it uses deprecated UrlEncoder.encode(String)
key = URLDecoder.decode(key);
value = URLDecoder.decode(value);
receiver.setParameter(key, value);
}
}
/**
* An interface for receiving key-value pairs.
*/
public static interface ParameterReceiver {
public void setParameter(String key, String value);
}
}