/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.usergrid.chop.webapp.service.shiro;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.web.filter.authz.AuthorizationFilter;
import org.apache.shiro.web.util.WebUtils;

import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;


public class RestFilter extends AuthorizationFilter {

    @Override
    protected boolean isAccessAllowed(ServletRequest request,
                                      ServletResponse response, Object mappedValue) {

        String username = (request.getParameter("user"));
        String password = (request.getParameter("pwd"));

        return ShiroRealm.authenticateUser(username, password);

    }

    @Override
    protected boolean onAccessDenied(ServletRequest request, ServletResponse response) throws IOException {

        // If subject is known but not authorized, return 401 UNAUTHORIZED status code
        // If subject is not known, return 404 NOT_FOUND status code
        if (SecurityUtils.getSubject().isAuthenticated()) {
            WebUtils.toHttp(response).sendError(HttpServletResponse.SC_UNAUTHORIZED);
        } else {
            WebUtils.toHttp(response).sendError(HttpServletResponse.SC_NOT_FOUND);
        }
        return false;
    }

}