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TomcatRootValve.java
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TomcatRootValve.java
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/*
* Copyright (c) 2018 Evolveum
*
* 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.evolveum.midpoint.web.boot;
import com.evolveum.midpoint.util.logging.Trace;
import com.evolveum.midpoint.util.logging.TraceManager;
import org.apache.catalina.Context;
import org.apache.catalina.connector.Request;
import org.apache.catalina.connector.Response;
import org.apache.catalina.valves.ValveBase;
import javax.servlet.ServletException;
import java.io.IOException;
/**
* Tomcat valve used to redirect root (/) URL to real application (/midpoint/).
* This is needed in Spring boot deployment. Entire midPoint app is deployed
* under http://.../midpoint/ URL root. But we want users to use http://.../
* as well to access the application.
* <p>
* This could not be done with midPoint servlets or servlet filters. The entire
* midPoint application is under /midpoint/, so the application won't even receive
* requests to root URL. We need to use dirty Tomcat-specific tricks for this.
*
* @author semancik
*/
public class TomcatRootValve extends ValveBase {
private static final Trace LOGGER = TraceManager.getTrace(TomcatRootValve.class);
private String servletPath;
public TomcatRootValve(String serlvetPath) {
super();
this.servletPath = serlvetPath == null ? "" : serlvetPath;
}
@Override
public void invoke(Request request, Response response) throws IOException, ServletException {
Context context = request.getContext();
if (context instanceof RootRootContext) {
String uri = request.getDecodedRequestURI();
if (uri.endsWith("favicon.ico")) {
LOGGER.trace("Redirecting favicon request to real application (URI={})", request.getDecodedRequestURI());
response.sendRedirect(servletPath + "/favicon.ico");
return;
} else {
LOGGER.trace("Redirecting request to real application root (URI={})", request.getDecodedRequestURI());
response.sendRedirect(servletPath + "/");
return;
}
}
getNext().invoke(request, response);
}
}