1 files changed, 130 insertions, 0 deletions
diff --git a/ECOMP-PAP-REST/src/main/java/org/openecomp/policy/pap/xacml/restAuth/PAPAuthenticationFilter.java b/ECOMP-PAP-REST/src/main/java/org/openecomp/policy/pap/xacml/restAuth/PAPAuthenticationFilter.java
new file mode 100644
index 000000000..817629420
--- /dev/null
+++ b/ECOMP-PAP-REST/src/main/java/org/openecomp/policy/pap/xacml/restAuth/PAPAuthenticationFilter.java
@@ -0,0 +1,130 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ECOMP-PAP-REST
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.policy.pap.xacml.restAuth;
+
+import java.io.IOException;
+
+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.annotation.WebFilter;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.openecomp.policy.pap.xacml.rest.XACMLPapServlet;
+
+/**
+ * Servlet Filter implementation class PAPAuthenticationFilter
+ */
+@WebFilter("/*")
+public class PAPAuthenticationFilter implements Filter {
+
+	private static final Log logger	= LogFactory.getLog(PAPAuthenticationFilter.class);
+	public static final String AUTHENTICATION_HEADER = "Authorization";
+
+	@Override
+	public void doFilter(ServletRequest request, ServletResponse response,
+			FilterChain filter) throws IOException, ServletException {
+		
+		
+		if (request instanceof HttpServletRequest) {
+			HttpServletRequest httpServletRequest = (HttpServletRequest) request;
+
+			String authCredentials = null;
+			String url = httpServletRequest.getRequestURI();
+			
+			logger.info("Request URI: " + url);
+			System.out.println("Request URI: " + url);
+			
+			//getting authentication credentials
+			if(url.contains("@Auth@")){
+				int authIndex = url.lastIndexOf("@");
+				int endAuthIndex = url.indexOf("/ecomp");
+				authCredentials = "Basic " + url.substring(authIndex+1, endAuthIndex);
+				
+				//parse the url for /pap/ecomp/
+				String url1 = url.substring(0, 4);
+				String url2 = url.substring(endAuthIndex, url.length());
+				url = url1 + url2;
+
+			} else {
+				authCredentials = httpServletRequest.getHeader(AUTHENTICATION_HEADER);
+			}
+			
+			// Check Authentication credentials
+			AuthenticationService authenticationService = new AuthenticationService();
+			boolean authenticationStatus = authenticationService.authenticate(authCredentials);
+			
+			if (authenticationStatus) {
+				//indicates the request comes from Traditional Admin Console or PolicyEngineAPI
+				if (url.equals("/pap/")){
+					logger.info("Request comes from Traditional Admin Console or PolicyEngineAPI");						
+					
+					//forward request to the XACMLPAPServlet if authenticated
+					request.getRequestDispatcher("/pap/pap/").forward(request, response);
+					
+				}else if (url.startsWith("/pap/ecomp/")){
+					
+					//indicates the request comes from the ECOMP Portal ecomp-sdk-app
+					if(response instanceof HttpServletResponse) {
+						HttpServletResponse alteredResponse = ((HttpServletResponse)response);
+						addCorsHeader(alteredResponse);
+						logger.info("Request comes from Ecomp Portal");
+						//Spring dispatcher servlet is at the end of the filter chain at /pap/ecomp/ path
+						System.out.println("New Request URI: " + url);
+						//request.getRequestDispatcher(url).forward(request, alteredResponse);
+						filter.doFilter(request, response);
+					}
+					
+				}
+				
+			} else {
+				if (response instanceof HttpServletResponse) {
+					HttpServletResponse httpServletResponse = (HttpServletResponse) response;
+					httpServletResponse.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
+				}
+			}
+
+		}
+	}
+	
+	//method to add CorsHeaders for ecomp portal rest call
+	private void addCorsHeader(HttpServletResponse response) {
+		logger.info("Adding Cors Response Headers!!!");
+		response.addHeader("Access-Control-Allow-Origin", "*");
+        response.addHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE, HEAD");
+        response.addHeader("Access-Control-Allow-Headers", "X-PINGOTHER, Origin, X-Requested-With, Content-Type, Accept");
+        response.addHeader("Access-Control-Max-Age", "1728000");	
+	}
+
+	@Override
+	public void destroy() {
+	}
+
+	@Override
+	public void init(FilterConfig arg0) throws ServletException {
+	}
+}