2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2018 AT&T Intellectual Property. All rights
7 * ================================================================================
8 * Modifications Copyright (c) 2019 Samsung
9 * ================================================================================
10 * Licensed under the Apache License, Version 2.0 (the "License");
11 * you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
14 * http://www.apache.org/licenses/LICENSE-2.0
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
21 * ============LICENSE_END============================================
22 * ===================================================================
26 package org.onap.clamp.clds;
28 import com.att.eelf.configuration.EELFLogger;
29 import com.att.eelf.configuration.EELFManager;
32 import java.io.IOException;
33 import java.security.Principal;
34 import java.util.ArrayList;
35 import java.util.Arrays;
36 import java.util.List;
38 import java.util.stream.Collector;
39 import java.util.stream.Collectors;
40 import javax.servlet.ServletException;
41 import javax.servlet.http.HttpServletRequest;
42 import javax.servlet.http.HttpServletResponse;
44 import org.apache.camel.component.servlet.CamelHttpTransportServlet;
45 import org.onap.clamp.authorization.SecureServicePermission;
46 import org.springframework.context.ApplicationContext;
47 import org.springframework.http.HttpStatus;
48 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
49 import org.springframework.security.core.Authentication;
50 import org.springframework.security.core.GrantedAuthority;
51 import org.springframework.security.core.authority.SimpleGrantedAuthority;
52 import org.springframework.security.core.context.SecurityContextHolder;
53 import org.springframework.security.core.userdetails.User;
54 import org.springframework.web.context.support.WebApplicationContextUtils;
56 public class ClampServlet extends CamelHttpTransportServlet {
59 * The serial version ID.
61 private static final long serialVersionUID = -4198841134910211542L;
63 private static final EELFLogger logger = EELFManager.getInstance().getLogger(ClampServlet.class);
64 private static final String PERM_INSTANCE = "clamp.config.security.permission.instance";
65 private static final String PERM_CL = "clamp.config.security.permission.type.cl";
66 private static final String PERM_TEMPLATE = "clamp.config.security.permission.type.template";
67 private static final String PERM_VF = "clamp.config.security.permission.type.filter.vf";
68 private static final String PERM_MANAGE = "clamp.config.security.permission.type.cl.manage";
69 private static final String PERM_TOSCA = "clamp.config.security.permission.type.tosca";
70 private static final String AUTHENTICATION_CLASS = "clamp.config.security.authentication.class";
71 private static final String READ = "read";
72 private static final String UPDATE = "update";
74 private static List<SecureServicePermission> permissionList;
76 private synchronized List<String> loadDynamicAuthenticationClasses() {
77 return Arrays.stream(WebApplicationContextUtils.getWebApplicationContext(getServletContext())
78 .getEnvironment().getProperty(AUTHENTICATION_CLASS).split(",")).map(className -> className.trim())
79 .collect(Collectors.toList());
82 private synchronized List<SecureServicePermission> getPermissionList() {
83 if (permissionList == null) {
84 permissionList = new ArrayList<>();
85 ApplicationContext applicationContext = WebApplicationContextUtils
86 .getWebApplicationContext(getServletContext());
87 String cldsPermissionInstance = applicationContext.getEnvironment().getProperty(PERM_INSTANCE);
88 permissionList.add(SecureServicePermission.create(applicationContext.getEnvironment().getProperty(PERM_CL),
89 cldsPermissionInstance, READ));
90 permissionList.add(SecureServicePermission.create(applicationContext.getEnvironment().getProperty(PERM_CL),
91 cldsPermissionInstance, UPDATE));
92 permissionList.add(SecureServicePermission.create(
93 applicationContext.getEnvironment().getProperty(PERM_TEMPLATE), cldsPermissionInstance, READ));
94 permissionList.add(SecureServicePermission.create(
95 applicationContext.getEnvironment().getProperty(PERM_TEMPLATE), cldsPermissionInstance, UPDATE));
96 permissionList.add(SecureServicePermission.create(applicationContext.getEnvironment().getProperty(PERM_VF),
97 cldsPermissionInstance, "*"));
98 permissionList.add(SecureServicePermission
99 .create(applicationContext.getEnvironment().getProperty(PERM_MANAGE), cldsPermissionInstance, "*"));
100 permissionList.add(SecureServicePermission
101 .create(applicationContext.getEnvironment().getProperty(PERM_TOSCA), cldsPermissionInstance, READ));
102 permissionList.add(SecureServicePermission
103 .create(applicationContext.getEnvironment().getProperty(PERM_TOSCA),
104 cldsPermissionInstance, UPDATE));
106 return permissionList;
110 * When AAF is enabled, request object will contain a cadi Wrapper, so queries
111 * to isUserInRole will invoke a http call to AAF server.
114 protected void doService(HttpServletRequest request, HttpServletResponse response) {
115 Principal principal = request.getUserPrincipal();
116 if (principal != null && loadDynamicAuthenticationClasses().stream()
117 .anyMatch(className -> className.equals(principal.getClass().getName()))) {
118 // When AAF is enabled, there is a need to provision the permissions to Spring
120 List<GrantedAuthority> grantedAuths = new ArrayList<>();
121 for (SecureServicePermission perm : getPermissionList()) {
122 String permString = perm.toString();
123 if (request.isUserInRole(permString)) {
124 grantedAuths.add(new SimpleGrantedAuthority(permString));
127 Authentication auth = new UsernamePasswordAuthenticationToken(new User(principal.getName(), "",
128 grantedAuths), "", grantedAuths);
129 SecurityContextHolder.getContext().setAuthentication(auth);
132 super.doService(request, response);
133 } catch (ServletException | IOException ioe) {
134 logger.error("Exception caught when executing doService in servlet", ioe);
136 response.sendError(HttpStatus.INTERNAL_SERVER_ERROR.value());
137 } catch (IOException e) {
138 logger.error("Exception caught when executing HTTP sendError in servlet", e);