diff options
Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.4/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPServiceListenerServlet.java')
-rw-r--r-- | sca-java-1.x/branches/sca-java-1.4/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPServiceListenerServlet.java | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.4/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPServiceListenerServlet.java b/sca-java-1.x/branches/sca-java-1.4/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPServiceListenerServlet.java new file mode 100644 index 0000000000..493255655d --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.4/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPServiceListenerServlet.java @@ -0,0 +1,136 @@ +/* + * 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.tuscany.sca.binding.http.provider; + +import java.io.IOException; +import java.util.List; + +import javax.servlet.Servlet; +import javax.servlet.ServletConfig; +import javax.servlet.ServletException; +import javax.servlet.ServletRequest; +import javax.servlet.ServletResponse; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import javax.xml.namespace.QName; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; +import org.apache.tuscany.sca.invocation.MessageFactory; +import org.apache.tuscany.sca.policy.Intent; +import org.apache.tuscany.sca.policy.PolicySet; +import org.apache.tuscany.sca.policy.PolicySetAttachPoint; +import org.apache.tuscany.sca.policy.authentication.basic.BasicAuthenticationPolicy; + +/** + * Servlet responsible for dispatching HTTP service requests to the + * target component implementation. + * + * @version $Rev$ $Date$ + */ +public class HTTPServiceListenerServlet implements Servlet { + private static final QName AUTEHTICATION_INTENT = new QName("http://www.osoa.org/xmlns/sca/1.0","authentication"); + + transient private Binding binding; + transient private ServletConfig config; + transient private MessageFactory messageFactory; + transient private Invoker serviceInvoker; + + transient private boolean requiresAuthentication = false; + transient private BasicAuthenticationPolicy basicAuthenticationPolicy = null; + + /** + * Constructs a new HTTPServiceListenerServlet. + */ + public HTTPServiceListenerServlet(Binding binding, Invoker serviceInvoker, MessageFactory messageFactory) { + this.binding = binding; + this.serviceInvoker = serviceInvoker; + this.messageFactory = messageFactory; + + // find out which policies are active + if (binding instanceof PolicySetAttachPoint) { + List<Intent> intents = ((PolicySetAttachPoint)binding).getRequiredIntents(); + for(Intent intent : intents) { + if(intent.getName().equals(AUTEHTICATION_INTENT)) { + requiresAuthentication = true; + } + } + + + List<PolicySet> policySets = ((PolicySetAttachPoint)binding).getApplicablePolicySets(); + for (PolicySet ps : policySets) { + for (Object p : ps.getPolicies()) { + if (BasicAuthenticationPolicy.class.isInstance(p)) { + basicAuthenticationPolicy = (BasicAuthenticationPolicy)p; + } else { + // etc. check for other types of policy being present + } + } + } + } + } + + public ServletConfig getServletConfig() { + return config; + } + + public String getServletInfo() { + return ""; + } + + public void init(ServletConfig config) throws ServletException { + this.config = config; + } + + public void destroy() { + + } + + public void service(ServletRequest request, ServletResponse response) throws ServletException, IOException { + + if(requiresAuthentication) { + if(! hasAuthenticationHeader((HttpServletRequest)request, (HttpServletResponse)response)) { + ((HttpServletResponse)response).sendError(HttpServletResponse.SC_UNAUTHORIZED); + } + } + + // Dispatch the service interaction to the service invoker + Message requestMessage = messageFactory.createMessage(); + requestMessage.setBody(new Object[]{request, response}); + Message responseMessage = serviceInvoker.invoke(requestMessage); + if (responseMessage.isFault()) { + // Turn a fault into an exception + //throw new ServletException((Throwable)responseMessage.getBody()); + Throwable e = (Throwable)responseMessage.getBody(); + ((HttpServletResponse)response).sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.toString()); + } + } + + + private boolean hasAuthenticationHeader(HttpServletRequest request, ServletResponse response) { + boolean result = false; + if(request.getHeader("Authorization") != null) { + result = true; + } + + return result; + } +} |