| /** |
| * 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.pulsar.broker.web; |
| |
| import java.io.IOException; |
| import javax.naming.AuthenticationException; |
| import javax.servlet.Filter; |
| import javax.servlet.FilterChain; |
| import javax.servlet.FilterConfig; |
| import javax.servlet.ServletException; |
| import javax.servlet.ServletRequest; |
| import javax.servlet.ServletResponse; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import org.apache.pulsar.broker.authentication.AuthenticationDataHttps; |
| import org.apache.pulsar.broker.authentication.AuthenticationService; |
| import org.apache.pulsar.common.sasl.SaslConstants; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Servlet filter that hooks up with AuthenticationService to reject unauthenticated HTTP requests. |
| */ |
| public class AuthenticationFilter implements Filter { |
| private static final Logger LOG = LoggerFactory.getLogger(AuthenticationFilter.class); |
| |
| private final AuthenticationService authenticationService; |
| |
| public static final String AuthenticatedRoleAttributeName = AuthenticationFilter.class.getName() + "-role"; |
| public static final String AuthenticatedDataAttributeName = AuthenticationFilter.class.getName() + "-data"; |
| |
| public AuthenticationFilter(AuthenticationService authenticationService) { |
| this.authenticationService = authenticationService; |
| } |
| |
| private boolean isSaslRequest(HttpServletRequest request) { |
| if (request.getHeader(SaslConstants.SASL_HEADER_TYPE) == null |
| || request.getHeader(SaslConstants.SASL_HEADER_TYPE).isEmpty()) { |
| return false; |
| } |
| if (request.getHeader(SaslConstants.SASL_HEADER_TYPE) |
| .equalsIgnoreCase(SaslConstants.SASL_TYPE_VALUE)) { |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) |
| throws IOException, ServletException { |
| try { |
| HttpServletRequest httpRequest = (HttpServletRequest) request; |
| HttpServletResponse httpResponse = (HttpServletResponse) response; |
| |
| if (!isSaslRequest(httpRequest)) { |
| // not sasl type, return role directly. |
| String role = authenticationService.authenticateHttpRequest((HttpServletRequest) request); |
| request.setAttribute(AuthenticatedRoleAttributeName, role); |
| request.setAttribute(AuthenticatedDataAttributeName, |
| new AuthenticationDataHttps((HttpServletRequest) request)); |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("[{}] Authenticated HTTP request with role {}", request.getRemoteAddr(), role); |
| } |
| chain.doFilter(request, response); |
| return; |
| } |
| |
| boolean doFilter = authenticationService |
| .getAuthenticationProvider(SaslConstants.AUTH_METHOD_NAME) |
| .authenticateHttpRequest(httpRequest, httpResponse); |
| |
| if (doFilter) { |
| chain.doFilter(request, response); |
| } |
| } catch (Exception e) { |
| HttpServletResponse httpResponse = (HttpServletResponse) response; |
| httpResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Authentication required"); |
| if (e instanceof AuthenticationException) { |
| LOG.warn("[{}] Failed to authenticate HTTP request: {}", request.getRemoteAddr(), e.getMessage()); |
| } else { |
| LOG.error("[{}] Error performing authentication for HTTP", request.getRemoteAddr(), e); |
| } |
| return; |
| } |
| } |
| |
| @Override |
| public void init(FilterConfig arg) throws ServletException { |
| // No init necessary. |
| } |
| |
| @Override |
| public void destroy() { |
| // No state to clean up. |
| } |
| } |