| /* |
| * 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.felix.http.jetty; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.URL; |
| import java.security.*; |
| |
| import org.mortbay.http.HttpException; |
| import org.mortbay.http.HttpRequest; |
| import org.mortbay.http.HttpResponse; |
| import org.mortbay.http.handler.AbstractHttpHandler; |
| import org.mortbay.jetty.servlet.*; |
| |
| /** |
| * |
| */ |
| public class OsgiResourceHandler extends AbstractHttpHandler |
| { |
| protected org.osgi.service.http.HttpContext m_osgiHttpContext; |
| protected String m_name; |
| protected OsgiServletHandler m_dummyHandler; |
| protected AccessControlContext m_acc; |
| |
| |
| public OsgiResourceHandler( |
| org.osgi.service.http.HttpContext osgiHttpContext, String name, |
| AccessControlContext acc) |
| { |
| m_osgiHttpContext = osgiHttpContext; |
| m_name = name; |
| // needed for OSGi security handling |
| m_dummyHandler = new OsgiServletHandler(osgiHttpContext); |
| m_acc = acc; |
| } |
| |
| |
| public void initialize(org.mortbay.http.HttpContext context) |
| { |
| super.initialize(context); |
| m_dummyHandler.initialize(context); |
| } |
| |
| |
| public void handle(String pathInContext, |
| String pathParams, |
| HttpRequest request, |
| HttpResponse response) |
| throws HttpException, IOException |
| { |
| Activator.debug("handle for name:" + m_name |
| + "(path=" + pathInContext + ")"); |
| |
| ServletHttpRequest servletRequest = new DummyServletHttpRequest( |
| m_dummyHandler, pathInContext, request); |
| ServletHttpResponse servletResponse = new DummyServletHttpResponse( |
| servletRequest, response); |
| |
| if (!m_osgiHttpContext.handleSecurity(servletRequest, servletResponse)) |
| { |
| // spec doesn't state specific processing here apart from |
| // "send the response back to the client". We take this to mean |
| // any response generated in the context, and so all we do here |
| // is set handled to "true" to ensure any output is sent back |
| request.setHandled(true); |
| return; |
| } |
| |
| // Create resource based name and see if we can resolve it |
| String resName = m_name + pathInContext; |
| Activator.debug("** looking for: " + resName); |
| URL url = m_osgiHttpContext.getResource(resName); |
| |
| if (url == null) |
| { |
| return; |
| } |
| |
| Activator.debug("serving up:" + resName); |
| |
| // It doesn't state so in the OSGi spec, but can't see how anything |
| // other than GET and variants would be supported |
| String method=request.getMethod(); |
| if (method.equals(HttpRequest.__GET) || |
| method.equals(HttpRequest.__POST) || |
| method.equals(HttpRequest.__HEAD)) |
| { |
| handleGet(request, response, url, resName); |
| } |
| else |
| { |
| try |
| { |
| response.sendError(HttpResponse.__501_Not_Implemented); |
| } |
| catch(Exception e) {/*TODO: include error logging*/} |
| } |
| } |
| |
| |
| public void handleGet(HttpRequest request, final HttpResponse response, |
| final URL url, String resName) |
| throws IOException |
| { |
| String encoding = m_osgiHttpContext.getMimeType(resName); |
| |
| if (encoding == null) |
| { |
| encoding = getHttpContext().getMimeByExtension(resName); |
| } |
| |
| if (encoding == null) |
| { |
| encoding = getHttpContext().getMimeByExtension(".default"); |
| } |
| |
| //TODO: not sure why this is needed, but sometimes get "IllegalState" |
| // errors if not included |
| response.setAcceptTrailer(true); |
| response.setContentType(encoding); |
| |
| //TODO: check other http fields e.g. ranges, timestamps etc. |
| |
| // make sure we access the resource inside the bundle's access control |
| // context if supplied |
| if (System.getSecurityManager() != null) |
| { |
| try |
| { |
| AccessController.doPrivileged(new PrivilegedExceptionAction() |
| { |
| public Object run() |
| throws Exception |
| { |
| copyResourceBytes(url, response); |
| return null; |
| } |
| }, m_acc); |
| } |
| catch (PrivilegedActionException ex) |
| { |
| IOException ioe = (IOException) ex.getException(); |
| throw ioe; |
| } |
| } |
| else |
| { |
| copyResourceBytes(url, response); |
| } |
| |
| request.setHandled(true); |
| //TODO: set other http fields e.g. __LastModified, __ContentLength |
| } |
| |
| |
| private void copyResourceBytes(URL url, HttpResponse response) |
| throws |
| IOException |
| { |
| OutputStream os = response.getOutputStream(); |
| InputStream is = url.openStream(); |
| int len = 0; |
| byte[] buf = new byte[1024]; |
| int n = 0; |
| |
| while ((n = is.read(buf, 0, buf.length)) >= 0) |
| { |
| os.write(buf, 0, n); |
| len += n; |
| } |
| |
| try |
| { |
| response.setContentLength(len); |
| } |
| catch (IllegalStateException ex) |
| { |
| System.err.println("OsgiResourceHandler: " + ex); |
| } |
| } |
| } |