| /* |
| * 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.atlas.web.security; |
| |
| import org.apache.atlas.ApplicationProperties; |
| import org.apache.atlas.web.model.User; |
| import org.apache.commons.configuration.ConfigurationConverter; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.springframework.security.authentication.UsernamePasswordAuthenticationToken; |
| import org.springframework.security.authentication.jaas.DefaultJaasAuthenticationProvider; |
| import org.springframework.security.authentication.jaas.memory.InMemoryConfiguration; |
| import org.springframework.security.core.Authentication; |
| import org.springframework.security.core.AuthenticationException; |
| import org.springframework.security.core.GrantedAuthority; |
| import org.springframework.security.core.userdetails.UserDetails; |
| import org.springframework.stereotype.Component; |
| |
| import javax.annotation.PostConstruct; |
| import javax.security.auth.login.AppConfigurationEntry; |
| import javax.security.auth.login.Configuration; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| @Component |
| public class AtlasPamAuthenticationProvider extends AtlasAbstractAuthenticationProvider { |
| |
| private static Logger LOG = LoggerFactory.getLogger(AtlasPamAuthenticationProvider.class); |
| private boolean isDebugEnabled = LOG.isDebugEnabled(); |
| private static String loginModuleName = "org.apache.atlas.web.security.PamLoginModule"; |
| private static AppConfigurationEntry.LoginModuleControlFlag controlFlag = |
| AppConfigurationEntry.LoginModuleControlFlag.REQUIRED; |
| private Map<String, String> options = new HashMap<String, String>(); |
| private boolean groupsFromUGI; |
| private DefaultJaasAuthenticationProvider jaasAuthenticationProvider = |
| new DefaultJaasAuthenticationProvider(); |
| |
| @PostConstruct |
| public void setup() { |
| setPamProperties(); |
| init(); |
| } |
| |
| @Override |
| public Authentication authenticate(Authentication authentication) throws AuthenticationException { |
| Authentication auth = getPamAuthentication(authentication); |
| if (auth != null && auth.isAuthenticated()) { |
| return auth; |
| } else { |
| throw new AtlasAuthenticationException("PAM Authentication Failed"); |
| } |
| } |
| |
| private Authentication getPamAuthentication(Authentication authentication) { |
| if (isDebugEnabled) { |
| LOG.debug("==> AtlasPamAuthenticationProvider getPamAuthentication"); |
| } |
| try { |
| String userName = authentication.getName(); |
| String userPassword = ""; |
| if (authentication.getCredentials() != null) { |
| userPassword = authentication.getCredentials().toString(); |
| } |
| |
| // getting user authenticated |
| if (userName != null && userPassword != null |
| && !userName.trim().isEmpty() |
| && !userPassword.trim().isEmpty()) { |
| final List<GrantedAuthority> grantedAuths = getAuthorities(userName); |
| |
| final UserDetails principal = new User(userName, userPassword, |
| grantedAuths); |
| |
| final Authentication finalAuthentication = new UsernamePasswordAuthenticationToken( |
| principal, userPassword, grantedAuths); |
| |
| authentication = jaasAuthenticationProvider |
| .authenticate(finalAuthentication); |
| |
| if(groupsFromUGI) { |
| authentication = getAuthenticationWithGrantedAuthorityFromUGI(authentication); |
| } else { |
| authentication = getAuthenticationWithGrantedAuthority(authentication); |
| } |
| return authentication; |
| } else { |
| return authentication; |
| } |
| |
| } catch (Exception e) { |
| LOG.debug("Pam Authentication Failed:", e); |
| } |
| if (isDebugEnabled) { |
| LOG.debug("<== AtlasPamAuthenticationProvider getPamAuthentication"); |
| } |
| return authentication; |
| } |
| |
| private void setPamProperties() { |
| try { |
| this.groupsFromUGI = ApplicationProperties.get().getBoolean("atlas.authentication.method.pam.ugi-groups", true); |
| Properties properties = ConfigurationConverter.getProperties(ApplicationProperties.get() |
| .subset("atlas.authentication.method.pam")); |
| for (String key : properties.stringPropertyNames()) { |
| String value = properties.getProperty(key); |
| options.put(key, value); |
| } |
| if (!options.containsKey("service")) { |
| options.put("service", "atlas-login"); |
| } |
| } catch (Exception e) { |
| LOG.error("Exception while setLdapProperties", e); |
| } |
| } |
| |
| private void init() { |
| try { |
| AppConfigurationEntry appConfigurationEntry = new AppConfigurationEntry( |
| loginModuleName, controlFlag, options); |
| AppConfigurationEntry[] appConfigurationEntries = new AppConfigurationEntry[]{appConfigurationEntry}; |
| Map<String, AppConfigurationEntry[]> appConfigurationEntriesOptions = |
| new HashMap<String, AppConfigurationEntry[]>(); |
| appConfigurationEntriesOptions.put("SPRINGSECURITY", |
| appConfigurationEntries); |
| Configuration configuration = new InMemoryConfiguration( |
| appConfigurationEntriesOptions); |
| jaasAuthenticationProvider.setConfiguration(configuration); |
| UserAuthorityGranter authorityGranter = new UserAuthorityGranter(); |
| UserAuthorityGranter[] authorityGranters = new UserAuthorityGranter[]{authorityGranter}; |
| jaasAuthenticationProvider.setAuthorityGranters(authorityGranters); |
| jaasAuthenticationProvider.afterPropertiesSet(); |
| } catch (Exception e) { |
| LOG.error("Failed to init PAM Authentication", e); |
| } |
| } |
| } |