diff options
author | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:26:33 +0000 |
---|---|---|
committer | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:26:33 +0000 |
commit | a40e527938d76ba71f211da7e327adb50384ba69 (patch) | |
tree | cb8f99f1727122b040a3f0fbb6649292b6a74302 /sca-java-1.x/tags/1.5-RC0/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPBindingListenerServlet.java | |
parent | 968721109881107520d7aefa91d7fcc0519d7739 (diff) |
Moving 1.x tags
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835157 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'sca-java-1.x/tags/1.5-RC0/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPBindingListenerServlet.java')
-rw-r--r-- | sca-java-1.x/tags/1.5-RC0/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPBindingListenerServlet.java | 516 |
1 files changed, 516 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.5-RC0/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPBindingListenerServlet.java b/sca-java-1.x/tags/1.5-RC0/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPBindingListenerServlet.java new file mode 100644 index 0000000000..12f1143e3a --- /dev/null +++ b/sca-java-1.x/tags/1.5-RC0/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPBindingListenerServlet.java @@ -0,0 +1,516 @@ +/* + * 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.io.InputStream; +import java.io.OutputStream; +import java.net.URLDecoder; +import java.text.ParseException; +import java.util.List; + +import javax.servlet.ServletException; +import javax.servlet.ServletResponse; +import javax.servlet.http.HttpServlet; +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.binding.http.HTTPCacheContext; +import org.apache.tuscany.sca.binding.http.util.HTTPHeadersParser; +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 requests to the + * target component implementation. + * + * @version $Rev$ $Date$ + */ +public class HTTPBindingListenerServlet extends HttpServlet { + private static final long serialVersionUID = 2865466417329430610L; + + private static final QName AUTEHTICATION_INTENT = new QName("http://www.osoa.org/xmlns/sca/1.0","authentication"); + + transient private Binding binding; + + transient private boolean requiresAuthentication = false; + transient private BasicAuthenticationPolicy basicAuthenticationPolicy = null; + + private MessageFactory messageFactory; + private Invoker getInvoker; + private Invoker conditionalGetInvoker; + private Invoker putInvoker; + private Invoker conditionalPutInvoker; + private Invoker postInvoker; + private Invoker conditionalPostInvoker; + private Invoker deleteInvoker; + private Invoker conditionalDeleteInvoker; + + /** + * Constructs a new HTTPServiceListenerServlet. + */ + public HTTPBindingListenerServlet(Binding binding, MessageFactory messageFactory) { + this.binding = binding; + 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 + } + } + } + } + } + + + @Override + protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + + if(requiresAuthentication) { + if(! hasAuthorization(request, response)) { + response.setHeader("WWW-Authenticate", "BASIC realm=\"Tuscany\""); + response.sendError(HttpServletResponse.SC_UNAUTHORIZED); + } + } + + super.service(request, response); + } + + @Override + protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + // Get the request path + String path = URLDecoder.decode(request.getRequestURI().substring(request.getServletPath().length()), "UTF-8"); + if (path.length() ==0) { + // Redirect to a URL ending with / to make relative hrefs work + // relative to the served resource. + response.sendRedirect(request.getRequestURL().append('/').toString()); + return; + } + + // Invoke the get operation on the service implementation + Message requestMessage = messageFactory.createMessage(); + + //store http headers to message + requestMessage.getHeaders().addAll(HTTPHeadersParser.getHeaders(request)); + + String id = path.substring(1); + + Message responseMessage = null; + HTTPCacheContext cacheContext = null; + try { + cacheContext = HTTPCacheContext.getCacheContextFromRequest(request); + } catch (ParseException e) { + } + + // Route message based on availability of cache info and cache methods + if (( cacheContext != null ) && (cacheContext.isEnabled()) && (conditionalGetInvoker != null )) { + requestMessage.setBody(new Object[] {id, cacheContext}); + responseMessage = conditionalGetInvoker.invoke(requestMessage); + } else { + requestMessage.setBody(new Object[] {id}); + responseMessage = getInvoker.invoke(requestMessage); + } + if (responseMessage.isFault()) { + Object body = responseMessage.getBody(); + + int index = -1; + if ( -1 < (index = body.getClass().getName().indexOf( "NotModifiedException")) ) { + if ( index > -1 ) + response.sendError( HttpServletResponse.SC_NOT_MODIFIED, body.toString().substring( index )); + else + response.sendError( HttpServletResponse.SC_NOT_MODIFIED ); + return; + } else if ( -1 < (index = body.getClass().getName().indexOf( "PreconditionFailedException")) ) { + if ( index > -1 ) + response.sendError( HttpServletResponse.SC_PRECONDITION_FAILED, body.toString().substring( index )); + else + response.sendError( HttpServletResponse.SC_PRECONDITION_FAILED ); + return; + } + + throw new ServletException((Throwable)responseMessage.getBody()); + } + + // Write the response from the service implementation to the response + // output stream + InputStream is = (InputStream)responseMessage.getBody(); + OutputStream os = response.getOutputStream(); + byte[] buffer = new byte[2048]; + for (;;) { + int n = is.read(buffer); + if (n <= 0) + break; + os.write(buffer, 0, n); + } + os.flush(); + os.close(); + } + + @Override + protected void doDelete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + // Get the request path + String path = URLDecoder.decode(request.getRequestURI().substring(request.getServletPath().length()), "UTF-8"); + if (path.length() ==0) { + // Redirect to a URL ending with / to make relative hrefs work + // relative to the served resource. + response.sendRedirect(request.getRequestURL().append('/').toString()); + return; + } + + // Invoke the get operation on the service implementation + Message requestMessage = messageFactory.createMessage(); + String id = path.substring(1); + + Message responseMessage = null; + HTTPCacheContext cacheContext = null; + try { + cacheContext = HTTPCacheContext.getCacheContextFromRequest(request); + } catch (ParseException e) { + } + + // Route message based on availability of cache info and cache methods + if (( cacheContext != null ) && (cacheContext.isEnabled()) && (conditionalDeleteInvoker != null )) { + requestMessage.setBody(new Object[] {id, cacheContext}); + responseMessage = conditionalDeleteInvoker.invoke(requestMessage); + } else { + requestMessage.setBody(new Object[] {id}); + responseMessage = deleteInvoker.invoke(requestMessage); + } + if (responseMessage.isFault()) { + Object body = responseMessage.getBody(); + + int index = -1; + if ( -1 < (index = body.getClass().getName().indexOf( "NotModifiedException")) ) { + if ( index > -1 ) + response.sendError( HttpServletResponse.SC_NOT_MODIFIED, body.toString().substring( index )); + else + response.sendError( HttpServletResponse.SC_NOT_MODIFIED ); + return; + } else if ( -1 < (index = body.getClass().getName().indexOf( "PreconditionFailedException")) ) { + if ( index > -1 ) + response.sendError( HttpServletResponse.SC_PRECONDITION_FAILED, body.toString().substring( index )); + else + response.sendError( HttpServletResponse.SC_PRECONDITION_FAILED ); + return; + } + + throw new ServletException((Throwable)responseMessage.getBody()); + } + + // Write the response from the service implementation to the response + // output stream + InputStream is = (InputStream)responseMessage.getBody(); + OutputStream os = response.getOutputStream(); + byte[] buffer = new byte[2048]; + for (;;) { + int n = is.read(buffer); + if (n <= 0) + break; + os.write(buffer, 0, n); + } + os.flush(); + os.close(); + } + + @Override + protected void doPut(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + // Get the request path + String path = URLDecoder.decode(request.getRequestURI().substring(request.getServletPath().length()), "UTF-8"); + if (path.length() ==0) { + // Redirect to a URL ending with / to make relative hrefs work + // relative to the served resource. + response.sendRedirect(request.getRequestURL().append('/').toString()); + return; + } + + // Invoke the get operation on the service implementation + Message requestMessage = messageFactory.createMessage(); + String id = path.substring(1); + + Message responseMessage = null; + HTTPCacheContext cacheContext = null; + try { + cacheContext = HTTPCacheContext.getCacheContextFromRequest(request); + } catch (ParseException e) { + } + + // Route message based on availability of cache info and cache methods + if (( cacheContext != null ) && (cacheContext.isEnabled()) && (conditionalPutInvoker != null )) { + requestMessage.setBody(new Object[] {id, cacheContext}); + responseMessage = conditionalPutInvoker.invoke(requestMessage); + } else { + requestMessage.setBody(new Object[] {id}); + responseMessage = putInvoker.invoke(requestMessage); + } + if (responseMessage.isFault()) { + Object body = responseMessage.getBody(); + + int index = -1; + if ( -1 < (index = body.getClass().getName().indexOf( "NotModifiedException")) ) { + if ( index > -1 ) + response.sendError( HttpServletResponse.SC_NOT_MODIFIED, body.toString().substring( index )); + else + response.sendError( HttpServletResponse.SC_NOT_MODIFIED ); + return; + } else if ( -1 < (index = body.getClass().getName().indexOf( "PreconditionFailedException")) ) { + if ( index > -1 ) + response.sendError( HttpServletResponse.SC_PRECONDITION_FAILED, body.toString().substring( index )); + else + response.sendError( HttpServletResponse.SC_PRECONDITION_FAILED ); + return; + } + + throw new ServletException((Throwable)responseMessage.getBody()); + } + + // Write the response from the service implementation to the response + // output stream + InputStream is = (InputStream)responseMessage.getBody(); + OutputStream os = response.getOutputStream(); + byte[] buffer = new byte[2048]; + for (;;) { + int n = is.read(buffer); + if (n <= 0) + break; + os.write(buffer, 0, n); + } + os.flush(); + os.close(); + } + + @Override + protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + // Get the request path + String path = URLDecoder.decode(request.getRequestURI().substring(request.getServletPath().length()), "UTF-8"); + if (path.length() ==0) { + // Redirect to a URL ending with / to make relative hrefs work + // relative to the served resource. + response.sendRedirect(request.getRequestURL().append('/').toString()); + return; + } + + // Invoke the get operation on the service implementation + Message requestMessage = messageFactory.createMessage(); + // String id = path.substring(1); + + Message responseMessage = null; + HTTPCacheContext cacheContext = null; + try { + cacheContext = HTTPCacheContext.getCacheContextFromRequest(request); + } catch (ParseException e) { + } + + // Route message based on availability of cache info and cache methods + if (( cacheContext != null ) && (cacheContext.isEnabled()) && (conditionalPostInvoker != null )) { + requestMessage.setBody(new Object[] {cacheContext}); + responseMessage = conditionalPostInvoker.invoke(requestMessage); + } else { + requestMessage.setBody(new Object[] {}); + responseMessage = postInvoker.invoke(requestMessage); + } + if (responseMessage.isFault()) { + Object body = responseMessage.getBody(); + + int index = -1; + if ( -1 < (index = body.getClass().getName().indexOf( "NotModifiedException")) ) { + if ( index > -1 ) + response.sendError( HttpServletResponse.SC_NOT_MODIFIED, body.toString().substring( index )); + else + response.sendError( HttpServletResponse.SC_NOT_MODIFIED ); + return; + } else if ( -1 < (index = body.getClass().getName().indexOf( "PreconditionFailedException")) ) { + if ( index > -1 ) + response.sendError( HttpServletResponse.SC_PRECONDITION_FAILED, body.toString().substring( index )); + else + response.sendError( HttpServletResponse.SC_PRECONDITION_FAILED ); + return; + } + + throw new ServletException((Throwable)responseMessage.getBody()); + } + + + // Test if the ETag and LastModified are returned as a cache context. + Object body = responseMessage.getBody(); + if ( body.getClass() == HTTPCacheContext.class ) { + // Transfer to header if so. + HTTPCacheContext cc = (HTTPCacheContext)responseMessage.getBody(); + if (( cc != null ) && ( cc.isEnabled() )) { + String eTag = cc.getETag(); + if ( eTag != null ) + response.setHeader( "ETag", cc.getETag() ); + String lastModified = cc.getLastModified(); + if ( lastModified != null) + response.setHeader( "LastModified", cc.getLastModified() ); + } + } + } + + /** + * @return the getInvoker + */ + public Invoker getGetInvoker() { + return getInvoker; + } + + /** + * @param getInvoker the getInvoker to set + */ + public void setGetInvoker(Invoker getInvoker) { + this.getInvoker = getInvoker; + } + + /** + * @return the conditionalGetInvoker + */ + public Invoker getConditionalGetInvoker() { + return conditionalGetInvoker; + } + + /** + * @param conditionalGetInvoker the conditionalGetInvoker to set + */ + public void setConditionalGetInvoker(Invoker conditionalGetInvoker) { + this.conditionalGetInvoker = conditionalGetInvoker; + } + + /** + * @return the putInvoker + */ + public Invoker getPutInvoker() { + return putInvoker; + } + + /** + * @param putInvoker the putInvoker to set + */ + public void setPutInvoker(Invoker putInvoker) { + this.putInvoker = putInvoker; + } + + /** + * @return the conditionalPutInvoker + */ + public Invoker getConditionalPutInvoker() { + return conditionalPutInvoker; + } + + /** + * @param conditionalPutInvoker the conditionalPutInvoker to set + */ + public void setConditionalPutInvoker(Invoker conditionalPutInvoker) { + this.conditionalPutInvoker = conditionalPutInvoker; + } + + /** + * @return the postInvoker + */ + public Invoker getPostInvoker() { + return postInvoker; + } + + /** + * @param postInvoker the postInvoker to set + */ + public void setPostInvoker(Invoker postInvoker) { + this.postInvoker = postInvoker; + } + + /** + * @return the conditionalPostInvoker + */ + public Invoker getConditionalPostInvoker() { + return conditionalPostInvoker; + } + + /** + * @param conditionalPostInvoker the conditionalPostInvoker to set + */ + public void setConditionalPostInvoker(Invoker conditionalPostInvoker) { + this.conditionalPostInvoker = conditionalPostInvoker; + } + + /** + * @return the deleteInvoker + */ + public Invoker getDeleteInvoker() { + return deleteInvoker; + } + + /** + * @param deleteInvoker the deleteInvoker to set + */ + public void setDeleteInvoker(Invoker deleteInvoker) { + this.deleteInvoker = deleteInvoker; + } + + /** + * @return the conditionalDeleteInvoker + */ + public Invoker getConditionalDeleteInvoker() { + return conditionalDeleteInvoker; + } + + /** + * @param conditionalDeleteInvoker the conditionalDeleteInvoker to set + */ + public void setConditionalDeleteInvoker(Invoker conditionalDeleteInvoker) { + this.conditionalDeleteInvoker = conditionalDeleteInvoker; + } + + + /** + * Utility Methods related to Policy + */ + + + private boolean hasAuthorization(HttpServletRequest request, ServletResponse response) { + boolean result = false; + if(request.getHeader("Authorization") != null) { + result = true; + } + + return result; + } + + +} |