2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2018 AT&T Intellectual Property. All rights
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END============================================
20 * ===================================================================
24 package org.onap.clamp.clds;
26 import com.att.eelf.configuration.EELFLogger;
27 import com.att.eelf.configuration.EELFManager;
29 import java.io.IOException;
30 import java.security.Principal;
31 import java.util.ArrayList;
32 import java.util.List;
34 import javax.servlet.ServletException;
35 import javax.servlet.http.HttpServletRequest;
36 import javax.servlet.http.HttpServletResponse;
38 import org.apache.camel.component.servlet.CamelHttpTransportServlet;
39 import org.onap.clamp.clds.service.SecureServicePermission;
40 import org.springframework.context.ApplicationContext;
41 import org.springframework.http.HttpStatus;
42 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
43 import org.springframework.security.core.Authentication;
44 import org.springframework.security.core.GrantedAuthority;
45 import org.springframework.security.core.authority.SimpleGrantedAuthority;
46 import org.springframework.security.core.context.SecurityContextHolder;
47 import org.springframework.security.core.userdetails.User;
48 import org.springframework.web.context.support.WebApplicationContextUtils;
50 public class ClampServlet extends CamelHttpTransportServlet {
53 * The serial version ID.
55 private static final long serialVersionUID = -4198841134910211542L;
57 protected static final EELFLogger logger = EELFManager.getInstance().getLogger(ClampServlet.class);
58 public static final String PERM_INSTANCE = "clamp.config.security.permission.instance";
59 public static final String PERM_CL = "clamp.config.security.permission.type.cl";
60 public static final String PERM_TEMPLATE = "clamp.config.security.permission.type.template";
61 public static final String PERM_VF = "clamp.config.security.permission.type.filter.vf";
62 public static final String PERM_MANAGE = "clamp.config.security.permission.type.cl.manage";
63 public static final String PERM_TOSCA = "clamp.config.security.permission.type.tosca";
64 public static final String AUTHENTICATION_CLASS = "clamp.config.security.authentication.class";
65 private static List<SecureServicePermission> permissionList;
67 private synchronized Class loadDynamicAuthenticationClass() {
69 String authenticationObject = WebApplicationContextUtils.getWebApplicationContext(getServletContext())
70 .getEnvironment().getProperty(AUTHENTICATION_CLASS);
71 return Class.forName(authenticationObject);
72 } catch (ClassNotFoundException e) {
74 "Exception caught when attempting to create associated class of config:" + AUTHENTICATION_CLASS, e);
79 private synchronized List<SecureServicePermission> getPermissionList() {
80 if (permissionList == null) {
81 permissionList = new ArrayList<>();
82 ApplicationContext applicationContext = WebApplicationContextUtils
83 .getWebApplicationContext(getServletContext());
84 String cldsPermissionInstance = applicationContext.getEnvironment().getProperty(PERM_INSTANCE);
85 permissionList.add(SecureServicePermission.create(applicationContext.getEnvironment().getProperty(PERM_CL),
86 cldsPermissionInstance, "read"));
87 permissionList.add(SecureServicePermission.create(applicationContext.getEnvironment().getProperty(PERM_CL),
88 cldsPermissionInstance, "update"));
89 permissionList.add(SecureServicePermission.create(
90 applicationContext.getEnvironment().getProperty(PERM_TEMPLATE), cldsPermissionInstance, "read"));
91 permissionList.add(SecureServicePermission.create(
92 applicationContext.getEnvironment().getProperty(PERM_TEMPLATE), cldsPermissionInstance, "update"));
93 permissionList.add(SecureServicePermission.create(applicationContext.getEnvironment().getProperty(PERM_VF),
94 cldsPermissionInstance, "*"));
95 permissionList.add(SecureServicePermission
96 .create(applicationContext.getEnvironment().getProperty(PERM_MANAGE), cldsPermissionInstance, "*"));
97 permissionList.add(SecureServicePermission
98 .create(applicationContext.getEnvironment().getProperty(PERM_TOSCA), cldsPermissionInstance, "read"));
99 permissionList.add(SecureServicePermission
100 .create(applicationContext.getEnvironment().getProperty(PERM_TOSCA), cldsPermissionInstance, "update"));
102 return permissionList;
106 * When AAF is enabled, request object will contain a cadi Wrapper, so queries
107 * to isUserInRole will invoke a http call to AAF server.
110 protected void doService(HttpServletRequest request, HttpServletResponse response)
111 throws ServletException, IOException {
112 Principal principal = request.getUserPrincipal();
113 if (loadDynamicAuthenticationClass().isInstance(principal)) {
114 // When AAF is enabled, there is a need to provision the permissions to Spring
116 List<GrantedAuthority> grantedAuths = new ArrayList<>();
117 for (SecureServicePermission perm : getPermissionList()) {
118 String permString = perm.toString();
119 if (request.isUserInRole(permString)) {
120 grantedAuths.add(new SimpleGrantedAuthority(permString));
123 Authentication auth = new UsernamePasswordAuthenticationToken(new User(principal.getName(), "", grantedAuths), "",
125 SecurityContextHolder.getContext().setAuthentication(auth);
128 super.doService(request, response);
129 } catch (ServletException | IOException ioe) {
130 logger.error("Exception caught when executing doService in servlet", ioe);
132 response.sendError(HttpStatus.INTERNAL_SERVER_ERROR.value());
133 } catch (IOException e) {
134 logger.error("Exception caught when executing HTTP sendError in servlet", e);