/*
 * 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.
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package org.apache.catalina.core;

import java.io.IOException;

import jakarta.servlet.RequestDispatcher;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServletResponse;

import org.apache.catalina.Wrapper;
import org.apache.catalina.connector.Request;
import org.apache.catalina.connector.Response;
import org.apache.catalina.valves.ValveBase;
import org.apache.coyote.ContinueResponseTiming;
import org.apache.tomcat.util.buf.MessageBytes;
import org.apache.tomcat.util.res.StringManager;

Valve that implements the default basic behavior for the StandardContext container implementation.

USAGE CONSTRAINT: This implementation is likely to be useful only when processing HTTP requests.

Author:Craig R. McClanahan
/** * Valve that implements the default basic behavior for the * <code>StandardContext</code> container implementation. * <p> * <b>USAGE CONSTRAINT</b>: This implementation is likely to be useful only * when processing HTTP requests. * * @author Craig R. McClanahan */
final class StandardContextValve extends ValveBase { private static final StringManager sm = StringManager.getManager(StandardContextValve.class); public StandardContextValve() { super(true); }
Select the appropriate child Wrapper to process this request, based on the specified request URI. If no matching Wrapper can be found, return an appropriate HTTP error.
Params:
  • request – Request to be processed
  • response – Response to be produced
Throws:
/** * Select the appropriate child Wrapper to process this request, * based on the specified request URI. If no matching Wrapper can * be found, return an appropriate HTTP error. * * @param request Request to be processed * @param response Response to be produced * * @exception IOException if an input/output error occurred * @exception ServletException if a servlet error occurred */
@Override public final void invoke(Request request, Response response) throws IOException, ServletException { // Disallow any direct access to resources under WEB-INF or META-INF MessageBytes requestPathMB = request.getRequestPathMB(); if ((requestPathMB.startsWithIgnoreCase("/META-INF/", 0)) || (requestPathMB.equalsIgnoreCase("/META-INF")) || (requestPathMB.startsWithIgnoreCase("/WEB-INF/", 0)) || (requestPathMB.equalsIgnoreCase("/WEB-INF"))) { response.sendError(HttpServletResponse.SC_NOT_FOUND); return; } // Select the Wrapper to be used for this Request Wrapper wrapper = request.getWrapper(); if (wrapper == null || wrapper.isUnavailable()) { response.sendError(HttpServletResponse.SC_NOT_FOUND); return; } // Acknowledge the request try { response.sendAcknowledgement(ContinueResponseTiming.IMMEDIATELY); } catch (IOException ioe) { container.getLogger().error(sm.getString( "standardContextValve.acknowledgeException"), ioe); request.setAttribute(RequestDispatcher.ERROR_EXCEPTION, ioe); response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); return; } if (request.isAsyncSupported()) { request.setAsyncSupported(wrapper.getPipeline().isAsyncSupported()); } wrapper.getPipeline().getFirst().invoke(request, response); } }