com.predic8.membrane.core.interceptor.oauth2.CookieUtil Maven / Gradle / Ivy
/*
* Copyright 2016 predic8 GmbH, www.predic8.com
* 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.predic8.membrane.core.interceptor.oauth2;
import com.predic8.membrane.core.exchange.Exchange;
import java.util.ArrayList;
import java.util.Collections;
import java.util.regex.Pattern;
public class CookieUtil {
public static String stripAndExtractCookiesSorted(Exchange exc, String ownCookieName) throws Exception {
String[] cookies = getCookieHeaderSplit(exc);
if(cookies == null)
throw new Exception("Cookie is missing");
ArrayList newCookies = removeOwnCookieNameFromCookieHeader(ownCookieName, cookies);
Collections.sort(newCookies);
StringBuilder builder = new StringBuilder();
for(String cookie : newCookies)
builder.append(";").append(cookie.trim());
builder.deleteCharAt(0);
return builder.toString();
}
private static ArrayList removeOwnCookieNameFromCookieHeader(String ownCookieName, String[] cookies) {
ArrayList newCookies = new ArrayList<>();
for(String cookie : cookies)
if(!cookie.trim().startsWith(ownCookieName))
newCookies.add(cookie.trim());
return newCookies;
}
private static String[] getCookieHeaderSplit(Exchange exc) {
try {
return exc.getRequest().getHeader().getFirstValue("Cookie").split(Pattern.quote(";"));
}catch(NullPointerException e){
return null;
}
}
}