/*
* This file is part of LibrePlan
*
* Copyright (C) 2009-2010 Fundación para o Fomento da Calidade Industrial e
* Desenvolvemento Tecnolóxico de Galicia
* Copyright (C) 2010-2011 Igalia, S.L.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.libreplan.web.common.entrypoints;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.servlet.http.HttpServletRequest;
/**
* Extracts <a href="http://www.w3.org/DesignIssues/MatrixURIs.html">matrix parameters</a>.
* <br />
* @author Óscar González Fernández <ogonzalez@igalia.com>
* @author Vova Perebykivskyi <vova@libreplan-enterprise.com>
*/
public class MatrixParameters {
private static Pattern matrixParamPattern = Pattern.compile(";([^/=;]+)=?([^/;]+)?");
private MatrixParameters() {
}
public static Map<String, String> extract(HttpServletRequest request) {
return request.getQueryString() != null
? extract(request.getRequestURI() + ";" + request.getQueryString())
: extract(request.getRequestURI());
}
/**
* Extracts matrix parameters but skipping "jsessionid".
*/
public static Map<String, String> extract(String string) {
Map<String, String> result = new HashMap<>();
Matcher matcher = matrixParamPattern.matcher(string);
while (matcher.find()) {
if (!matcher.group(1).equals("jsessionid")) {
result.put(matcher.group(1), matcher.group(2));
}
}
return result;
}
}