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Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.6.2/modules/binding-gdata-runtime/src/main/java/org/apache/tuscany/sca/binding/gdata/provider/GdataBindingListenerServlet.java')
| -rw-r--r-- | sca-java-1.x/branches/sca-java-1.6.2/modules/binding-gdata-runtime/src/main/java/org/apache/tuscany/sca/binding/gdata/provider/GdataBindingListenerServlet.java | 746 |
1 files changed, 746 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.6.2/modules/binding-gdata-runtime/src/main/java/org/apache/tuscany/sca/binding/gdata/provider/GdataBindingListenerServlet.java b/sca-java-1.x/branches/sca-java-1.6.2/modules/binding-gdata-runtime/src/main/java/org/apache/tuscany/sca/binding/gdata/provider/GdataBindingListenerServlet.java new file mode 100644 index 0000000000..facf3bb641 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.6.2/modules/binding-gdata-runtime/src/main/java/org/apache/tuscany/sca/binding/gdata/provider/GdataBindingListenerServlet.java @@ -0,0 +1,746 @@ +/* + * 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.gdata.provider; + +import static org.apache.tuscany.sca.binding.gdata.provider.GdataBindingUtil.entry; +import static org.apache.tuscany.sca.binding.gdata.provider.GdataBindingUtil.feedEntry; + +import java.io.IOException; +import java.io.OutputStreamWriter; +import java.io.PrintWriter; +import java.io.StringWriter; +import java.io.UnsupportedEncodingException; +import java.io.Writer; +import java.net.URLDecoder; +import java.util.ArrayList; +import java.util.StringTokenizer; +import java.util.logging.Logger; + +import javax.servlet.ServletException; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import javax.xml.namespace.QName; + +import org.apache.abdera.parser.ParseException; +import org.apache.commons.codec.binary.Base64; +import org.apache.tuscany.sca.data.collection.Entry; +import org.apache.tuscany.sca.databinding.Mediator; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl; +import org.apache.tuscany.sca.interfacedef.util.XMLType; +import org.apache.tuscany.sca.invocation.InvocationChain; +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.runtime.RuntimeWire; + +import com.google.gdata.data.ExtensionProfile; +import com.google.gdata.data.ParseSource; +import com.google.gdata.data.PlainTextConstruct; +import com.google.gdata.util.ServiceException; + +/** + * A resource collection binding listener, implemented as a Servlet and + * registered in a Servlet host provided by the SCA hosting runtime. + * + * @version $Rev$ $Date$ + */ +class GdataBindingListenerServlet extends HttpServlet { + private static final Logger logger = Logger.getLogger(GdataBindingListenerServlet.class.getName()); + private static final long serialVersionUID = 1L; + + private RuntimeWire wire; + private Invoker getFeedInvoker; + private Invoker getAllInvoker; + private Invoker queryInvoker; + private Invoker getInvoker; + private Invoker postInvoker; + private Invoker postMediaInvoker; + private Invoker putInvoker; + private Invoker putMediaInvoker; + private Invoker deleteInvoker; + private MessageFactory messageFactory; + private String title; + private Mediator mediator; + private DataType<?> itemClassType; + private DataType<?> itemXMLType; + private boolean supportsFeedEntries; + + /** + * Constructs a new binding listener. + * + * @param wire + * @param messageFactory + * @param feedType + */ + GdataBindingListenerServlet(RuntimeWire wire, MessageFactory messageFactory, Mediator mediator, String title) { + this.wire = wire; + this.messageFactory = messageFactory; + this.mediator = mediator; + this.title = title; + + // Get the invokers for the supported operations + Operation getOperation = null; + for (InvocationChain invocationChain : this.wire.getInvocationChains()) { + invocationChain.setAllowsPassByReference(true); + Operation operation = invocationChain.getTargetOperation(); + String operationName = operation.getName(); + + if (operationName.equals("getFeed")) { + + //System.out.println("[Debug Info]GdataBindingListenerServlet constructor --- operation: getFeed"); + getFeedInvoker = invocationChain.getHeadInvoker(); + + } else if (operationName.equals("getAll")) { + + getAllInvoker = invocationChain.getHeadInvoker(); + + } else if (operationName.equals("query")) { + + queryInvoker = invocationChain.getHeadInvoker(); + + } else if (operationName.equals("get")) { + + //System.out.println("[Debug Info]GdataBindingListenerServlet Constructor --- opeartion: get"); + getInvoker = invocationChain.getHeadInvoker(); + getOperation = operation; + + } else if (operationName.equals("put")) { + + putInvoker = invocationChain.getHeadInvoker(); + + } else if (operationName.equals("putMedia")) { + + putMediaInvoker = invocationChain.getHeadInvoker(); + + } else if (operationName.equals("post")) { + + //System.out.println("[Debug Info]GdataBindingListenerServlet Constructor --- opeartion: post"); + postInvoker = invocationChain.getHeadInvoker(); + + } else if (operationName.equals("postMedia")) { + postMediaInvoker = invocationChain.getHeadInvoker(); + } else if (operationName.equals("delete")) { + deleteInvoker = invocationChain.getHeadInvoker(); + } + } + + //System.out.println("[Debug Info]GdataBindingListenerServlet constructor --- I am good here 00"); + + // Determine the collection item type + itemXMLType = new DataTypeImpl<Class<?>>(String.class.getName(), String.class, String.class); + Class<?> itemClass = getOperation.getOutputType().getPhysical(); + + if (itemClass == com.google.gdata.data.Entry.class) { + supportsFeedEntries = true; + } + DataType<XMLType> outputType = getOperation.getOutputType(); + QName qname = outputType.getLogical().getElementName(); + qname = new QName(qname.getNamespaceURI(), itemClass.getSimpleName()); + itemClassType = new DataTypeImpl<XMLType>("java:complexType", itemClass, new XMLType(qname, null)); + + //System.out.println("[Debug Info]GdataBindingListenerServlet --- initilized!"); + } + + + @Override + protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + + // No authentication required for a get request + //System.out.println("[Debug Info]GdataBindingListenerServlet doGet() --- I am good here 00"); + + // Get the request path + String path = URLDecoder.decode(request.getRequestURI().substring(request.getServletPath().length()), "UTF-8"); + + //System.out.println("[Debug Info]GdataBindingListenerServlet doGet() --- request.getRequestURI(): " + request.getRequestURI()); + //System.out.println("[Debug Info]GdataBindingListenerServlet doGet()--- path: " + path); + + // FIXME: Log this get http request, commented out for testing + logger.fine("get " + request.getRequestURI()); + + // Handle an Atom request + if (path != null && path.equals("/atomsvc")) { + + //FIXME: This needs to be fixed, for /atomsvc + + /* + System.out.println("GdataBindingListenerServlet doGet(): I am good here brach 01"); + // Return the Atom service document + response.setContentType("application/atomsvc+xml; charset=utf-8"); + Service service = abderaFactory.newService(); + // service.setText("service"); + + Workspace workspace = abderaFactory.newWorkspace(); + workspace.setTitle("resource"); + + String href = request.getRequestURL().toString(); + href = href.substring(0, href.length() - "/atomsvc".length()); + + Collection collection = workspace.addCollection("collection", "atom/feed"); + collection.setTitle("entries"); + collection.setAttributeValue("href", href); + collection.setAccept("entry"); + collection.addCategories().setFixed(false); + + workspace.addCollection(collection); + + service.addWorkspace(workspace); + + // FIXME add prettyPrint support + try { + service.getDocument().writeTo(response.getOutputStream()); + } catch (IOException ioe) { + throw new ServletException(ioe); + } + */ + + } else if (path == null || path.length() == 0 || path.equals("/")) { + + // get HTTP request asking for a feed + + //System.out.println("[Debug Info]GdataBindingListenerServlet doGet() --- I am good here brach 02"); + + // Return a feed containing the entries in the collection + com.google.gdata.data.Feed feed = null; + + if (supportsFeedEntries) { + + //System.out.println("[Debug Info]GdataBindingListenerServlet doGet() --- supportsFeedEntries: " + supportsFeedEntries); + + // The service implementation supports feed entries, invoke its + // getFeed operation + Message requestMessage = messageFactory.createMessage(); + Message responseMessage; + if (request.getQueryString() != null) { + //System.out.println("getQueryString != null"); + requestMessage.setBody(new Object[] {request.getQueryString()}); + responseMessage = queryInvoker.invoke(requestMessage); + } else { + //System.out.println("getQueryString == null"); + responseMessage = getFeedInvoker.invoke(requestMessage); + } + if (responseMessage.isFault()) { + throw new ServletException((Throwable)responseMessage.getBody()); + } + + //System.out.println("response msg class:" + responseMessage.getBody().getClass()); + + feed = (com.google.gdata.data.Feed)responseMessage.getBody(); + + //System.out.println("feed title: " + feed.getTitle().getPlainText()); + + } else { + + //System.out.println("GdataBindingListenerServlet doGet(): do not supportsFeedEntries"); + + // The service implementation does not support feed entries, + // invoke its getAll operation to get the data item collection, + // then create + // feed entries from the items + Message requestMessage = messageFactory.createMessage(); + Message responseMessage; + if (request.getQueryString() != null) { + requestMessage.setBody(new Object[] {request.getQueryString()}); + responseMessage = queryInvoker.invoke(requestMessage); + } else { + responseMessage = getAllInvoker.invoke(requestMessage); + + //System.out + // .println("GdataBindingListner.doGet(): get msg from getAllInvoker.invoke()" + responseMessage + // .getBody().toString()); + + } + if (responseMessage.isFault()) { + throw new ServletException((Throwable)responseMessage.getBody()); + } + Entry<Object, Object>[] collection = (Entry<Object, Object>[])responseMessage.getBody(); + if (collection != null) { + + // Create the feed + feed = new com.google.gdata.data.Feed(); + + // Set the feed title + if (title != null) { + feed.setTitle(new PlainTextConstruct(title)); + } else { + feed.setTitle(new PlainTextConstruct("Feed title")); + } + + // Add entries to the feed + ArrayList<com.google.gdata.data.Entry> entries = new ArrayList<com.google.gdata.data.Entry>(); + for (Entry<Object, Object> entry : collection) { + com.google.gdata.data.Entry feedEntry = feedEntry(entry, itemClassType, itemXMLType, mediator); + entries.add(feedEntry); + } + feed.setEntries(entries); + + } + } + if (feed != null) { + + // //System.out.println("feed(from the http response)is not + // null"); + + // Write a GData feed using Atom representation + response.setContentType("application/atom+xml; charset=utf-8"); + + // Generate the corresponding Atom representation of the feed + StringWriter stringWriter = new StringWriter(); + com.google.gdata.util.common.xml.XmlWriter w = + new com.google.gdata.util.common.xml.XmlWriter(stringWriter); + feed.generateAtom(w, new ExtensionProfile()); + w.flush(); + + // Write the Atom representation(XML) into Http response content + OutputStreamWriter osw = new OutputStreamWriter(response.getOutputStream()); + PrintWriter out = new PrintWriter(response.getOutputStream()); + out.println(stringWriter.toString()); + out.close(); + + //System.out.println("Feed content in plain text:" + stringWriter.toString()); + } else { + response.sendError(HttpServletResponse.SC_NOT_FOUND); + } + + } else if (path.startsWith("/")) { + + // get HTTP request asking for an entry + + // Return a specific entry in the collection + com.google.gdata.data.Entry feedEntry = null; + + // Invoke the get operation on the service implementation + Message requestMessage = messageFactory.createMessage(); + String id = path.substring(1); + requestMessage.setBody(new Object[] {id}); + Message responseMessage = getInvoker.invoke(requestMessage); + if (responseMessage.isFault()) { + throw new ServletException((Throwable)responseMessage.getBody()); + } + + if (supportsFeedEntries) { + // The service implementation returns a feed entry + feedEntry = (com.google.gdata.data.Entry)responseMessage.getBody(); + + //System.out.println("entry title: " + feedEntry.getTitle().getPlainText()); + + } else { + // The service implementation only returns a data item, create + // an entry + // from it + Entry<Object, Object> entry = new Entry<Object, Object>(id, responseMessage.getBody()); + // FIXME The line below needs to be fixed + // feedEntry = feedEntry(entry, itemClassType, itemXMLType, + // mediator, abderaFactory); + } + + // Write the Gdata entry + if (feedEntry != null) { + + // Write a GData entry using Atom representation + response.setContentType("application/atom+xml; charset=utf-8"); + + // Generate the corresponding Atom representation of the feed + StringWriter stringWriter = new StringWriter(); + com.google.gdata.util.common.xml.XmlWriter w = + new com.google.gdata.util.common.xml.XmlWriter(stringWriter); + feedEntry.generateAtom(w, new ExtensionProfile()); + w.flush(); + + // Write the Atom representation(XML) into Http response content + OutputStreamWriter osw = new OutputStreamWriter(response.getOutputStream()); + PrintWriter out = new PrintWriter(response.getOutputStream()); + out.println(stringWriter.toString()); + out.close(); + + } else { + response.sendError(HttpServletResponse.SC_NOT_FOUND); + } + } else { + // Path doesn't match any known pattern + response.sendError(HttpServletResponse.SC_NOT_FOUND); + } + + } + + @Override + protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, + IOException { + + //System.out.println("[Debug Info]GdataBindingListenerServlet doPost() --- reached"); + + // Authenticate the user + String user = processAuthorizationHeader(request); + if (user == null) { + unauthorized(response); + return; + } + + // Get the request path + String path = URLDecoder.decode(request.getRequestURI().substring(request.getServletPath().length()), "UTF-8"); + + //System.out.println("[Debug Info]GdataBindingListenerServlet path --- " + path); + + if (path == null || path.length() == 0 || path.equals("/")) { + // Create a new Gdata entry + com.google.gdata.data.Entry createdFeedEntry = null; + String contentType = request.getContentType(); + + if (contentType != null && contentType.startsWith("application/atom+xml")) { + + // Read the entry from the request + com.google.gdata.data.Entry feedEntry = null; + try { + ParseSource source = new ParseSource(request.getReader()); + feedEntry = com.google.gdata.data.Entry.readEntry(source, com.google.gdata.data.Entry.class, null); + } catch (ParseException pe) { + throw new ServletException(pe); + } catch (com.google.gdata.util.ParseException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (ServiceException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + + // Let the component implementation create it + if (supportsFeedEntries) { + + // The service implementation supports feed entries, pass + // the entry to it + Message requestMessage = messageFactory.createMessage(); + + requestMessage.setBody(new Object[] {feedEntry}); + + Message responseMessage = postInvoker.invoke(requestMessage); + if (responseMessage.isFault()) { + throw new ServletException((Throwable)responseMessage.getBody()); + } + createdFeedEntry = responseMessage.getBody(); + } else { + + // The service implementation does not support feed entries, + // pass the data item to it + Message requestMessage = messageFactory.createMessage(); + Entry<Object, Object> entry = entry(feedEntry, itemClassType, itemXMLType, mediator); + requestMessage.setBody(new Object[] {entry.getKey(), entry.getData()}); + Message responseMessage = postInvoker.invoke(requestMessage); + if (responseMessage.isFault()) { + throw new ServletException((Throwable)responseMessage.getBody()); + } + entry.setKey(responseMessage.getBody()); + + createdFeedEntry = feedEntry(entry, itemClassType, itemXMLType, mediator); + } + + } else if (contentType != null) { + + // Create a new media entry + + // Get incoming headers + String title = request.getHeader("Title"); + String slug = request.getHeader("Slug"); + + // Let the component implementation create the media entry + Message requestMessage = messageFactory.createMessage(); + requestMessage.setBody(new Object[] {title, slug, contentType, request.getInputStream()}); + Message responseMessage = postMediaInvoker.invoke(requestMessage); + if (responseMessage.isFault()) { + throw new ServletException((Throwable)responseMessage.getBody()); + } + createdFeedEntry = responseMessage.getBody(); + } else { + response.sendError(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE); + } + + // A new entry was created successfully + if (createdFeedEntry != null) { + + // Set location of the created entry in the Location header + // Link link = createdFeedEntry.getSelfLink(); + // if (link != null) { + // response.addHeader("Location", link.getHref().toString()); + // } + + // Write the created Atom entry + response.setStatus(HttpServletResponse.SC_CREATED); + response.setContentType("application/atom+xml; charset=utf-8"); + try { + + // Generate the corresponding Atom representation of the + // feed + StringWriter stringWriter = new StringWriter(); + com.google.gdata.util.common.xml.XmlWriter w = + new com.google.gdata.util.common.xml.XmlWriter(stringWriter); + createdFeedEntry.generateAtom(w, new ExtensionProfile()); + w.flush(); + + // Write the Atom representation(XML) into Http response + // content + OutputStreamWriter osw = new OutputStreamWriter(response.getOutputStream()); + PrintWriter out = new PrintWriter(response.getOutputStream()); + out.println(stringWriter.toString()); + out.close(); + + } catch (ParseException pe) { + throw new ServletException(pe); + } + + } else { + response.sendError(HttpServletResponse.SC_NOT_FOUND); + } + + } else { + response.sendError(HttpServletResponse.SC_NOT_FOUND); + } + } + + private Writer getWriter(HttpServletResponse response) throws UnsupportedEncodingException, IOException { + Writer writer = new OutputStreamWriter(response.getOutputStream(), "UTF-8"); + return writer; + } + + + @Override + protected void doPut(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + + // Authenticate the user + String user = processAuthorizationHeader(request); + if (user == null) { + unauthorized(response); + return; + } + + // Get the request path + String path = request.getRequestURI().substring(request.getServletPath().length()); + + //System.out.println("[Debug Info] localServlet doPut --- path: " + path); + + if (path != null && path.startsWith("/")) { + String id = path.substring(1); + + // Update an Atom entry + String contentType = request.getContentType(); + if (contentType != null && contentType.startsWith("application/atom+xml")) { + + // Read the entry from the request + com.google.gdata.data.Entry feedEntry = null; + try { + ParseSource source = new ParseSource(request.getReader()); + feedEntry = com.google.gdata.data.Entry.readEntry(source, com.google.gdata.data.Entry.class, null); + + //System.out.println("[Debug Info] localServlet doPut --- feedEntry title: " + feedEntry.getTitle().getPlainText()); + } catch (ParseException pe) { + throw new ServletException(pe); + } catch (com.google.gdata.util.ParseException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (ServiceException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + + + + // Let the component implementation create it + if (supportsFeedEntries) { + + //System.out.println("[Debug Info] localServlet doPut --- supportsFeedEntries: " + supportsFeedEntries); + + // The service implementation supports feed entries, pass + // the entry to it + Message requestMessage = messageFactory.createMessage(); + requestMessage.setBody(new Object[] {id, feedEntry}); + Message responseMessage = putInvoker.invoke(requestMessage); + if (responseMessage.isFault()) { + Object body = responseMessage.getBody(); + if (body.getClass().getName().endsWith(".NotFoundException")) { + response.sendError(HttpServletResponse.SC_NOT_FOUND); + } else { + throw new ServletException((Throwable)responseMessage.getBody()); + } + } + } else { + + // The service implementation does not support feed entries, + // pass the data item to it + Message requestMessage = messageFactory.createMessage(); + Entry<Object, Object> entry = entry(feedEntry, itemClassType, itemXMLType, mediator); + requestMessage.setBody(new Object[] {entry.getKey(), entry.getData()}); + Message responseMessage = putInvoker.invoke(requestMessage); + if (responseMessage.isFault()) { + Object body = responseMessage.getBody(); + if (body.getClass().getName().endsWith(".NotFoundException")) { + response.sendError(HttpServletResponse.SC_NOT_FOUND); + } else { + throw new ServletException((Throwable)responseMessage.getBody()); + } + } + } + + // Write the Gdata entry + if (feedEntry != null) { + + // Write a GData entry using Atom representation + response.setContentType("application/atom+xml; charset=utf-8"); + + // Generate the corresponding Atom representation of the feed + StringWriter stringWriter = new StringWriter(); + com.google.gdata.util.common.xml.XmlWriter w = + new com.google.gdata.util.common.xml.XmlWriter(stringWriter); + feedEntry.generateAtom(w, new ExtensionProfile()); + w.flush(); + + // Write the Atom representation(XML) into Http response content + OutputStreamWriter osw = new OutputStreamWriter(response.getOutputStream()); + PrintWriter out = new PrintWriter(response.getOutputStream()); + out.println(stringWriter.toString()); + out.close(); + + } + + } else if (contentType != null) { + + // Updated a media entry + + // Let the component implementation create the media entry + Message requestMessage = messageFactory.createMessage(); + requestMessage.setBody(new Object[] {id, contentType, request.getInputStream()}); + Message responseMessage = putMediaInvoker.invoke(requestMessage); + Object body = responseMessage.getBody(); + if (responseMessage.isFault()) { + if (body.getClass().getName().endsWith(".NotFoundException")) { + response.sendError(HttpServletResponse.SC_NOT_FOUND); + } else { + throw new ServletException((Throwable)responseMessage.getBody()); + } + } + } else { + response.sendError(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE); + } + } else { + response.sendError(HttpServletResponse.SC_NOT_FOUND); + } + } + + + + + @Override + protected void doDelete(HttpServletRequest request, HttpServletResponse response) throws ServletException, + IOException { + + // Authenticate the user + String user = processAuthorizationHeader(request); + if (user == null) { + unauthorized(response); + return; + } + + // Get the request path + String path = URLDecoder.decode(request.getRequestURI().substring(request.getServletPath().length()), "UTF-8"); + + String id; + if (path != null && path.startsWith("/")) { + id = path.substring(1); + } else { + id = ""; + } + + // Delete a specific entry from the collection + Message requestMessage = messageFactory.createMessage(); + requestMessage.setBody(new Object[] {id}); + Message responseMessage = deleteInvoker.invoke(requestMessage); + if (responseMessage.isFault()) { + Object body = responseMessage.getBody(); + if (body.getClass().getName().endsWith(".NotFoundException")) { + response.sendError(HttpServletResponse.SC_NOT_FOUND); + } else { + throw new ServletException((Throwable)responseMessage.getBody()); + } + } + } + + + + /** + * Process the authorization header + * + * @param request + * @return + * @throws ServletException + */ + private String processAuthorizationHeader(HttpServletRequest request) throws ServletException { + + // FIXME temporarily disabling this as it doesn't work with all browsers + if (true) + return "admin"; + + try { + String authorization = request.getHeader("Authorization"); + if (authorization != null) { + StringTokenizer tokens = new StringTokenizer(authorization); + if (tokens.hasMoreTokens()) { + String basic = tokens.nextToken(); + if (basic.equalsIgnoreCase("Basic")) { + String credentials = tokens.nextToken(); + String userAndPassword = new String(Base64.decodeBase64(credentials.getBytes())); + int colon = userAndPassword.indexOf(":"); + if (colon != -1) { + String user = userAndPassword.substring(0, colon); + String password = userAndPassword.substring(colon + 1); + + // Authenticate the User. + if (authenticate(user, password)) { + return user; + } + } + } + } + } + } catch (Exception e) { + throw new ServletException(e); + } + return null; + } + + /** + * Authenticate a user. + * + * @param user + * @param password + * @return + */ + private boolean authenticate(String user, String password) { + // TODO Handle this using SCA security policies + return ("admin".equals(user) && "admin".equals(password)); + } + + /** + * Reject an unauthorized request. + * + * @param response + */ + private void unauthorized(HttpServletResponse response) throws IOException { + response.setHeader("WWW-Authenticate", "BASIC realm=\"Tuscany\""); + response.sendError(HttpServletResponse.SC_UNAUTHORIZED); + } +} |