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/SpiNNaker-allocserv/src/main/java/uk/ac/manchester/spinnaker/alloc/security/SecurityConfig.java

/*
 * Copyright (c) 2021 The University of Manchester
 *
 * 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
 *
 *     https://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 uk.ac.manchester.spinnaker.alloc.security;

import static org.slf4j.LoggerFactory.getLogger;
import static org.springframework.beans.factory.config.BeanDefinition.ROLE_APPLICATION;
import static org.springframework.beans.factory.config.BeanDefinition.ROLE_SUPPORT;
import static org.springframework.http.HttpMethod.GET;
import static org.springframework.http.MediaType.APPLICATION_JSON;
import static org.springframework.util.StreamUtils.copyToByteArray;
import static uk.ac.manchester.spinnaker.alloc.security.AppAuthTransformationFilter.clearToken;
import static uk.ac.manchester.spinnaker.alloc.security.Utils.installInjectableTrustStoreAsDefault;
import static uk.ac.manchester.spinnaker.alloc.security.Utils.loadTrustStore;
import static uk.ac.manchester.spinnaker.alloc.security.Utils.trustManager;
import static org.springframework.security.web.servlet.util.matcher.PathPatternRequestMatcher.pathPattern;

import java.io.IOException;
import java.net.URI;
import java.security.GeneralSecurityException;
import java.time.Instant;
import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;

import javax.net.ssl.X509TrustManager;

import org.apache.commons.logging.LogFactory;
import org.slf4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.restclient.RestTemplateBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Role;
import org.springframework.core.ParameterizedTypeReference;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpRequest;
import org.springframework.http.RequestEntity;
import org.springframework.http.client.ClientHttpResponse;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.security.config.Customizer;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.mapping.GrantedAuthoritiesMapper;
import org.springframework.security.core.authority.mapping.SimpleAuthorityMapper;
import org.springframework.security.oauth2.client.http.OAuth2ErrorResponseErrorHandler;
import org.springframework.security.oauth2.core.OAuth2AuthenticatedPrincipal;
import org.springframework.security.oauth2.core.oidc.OidcIdToken;
import org.springframework.security.oauth2.core.oidc.OidcUserInfo;
import org.springframework.security.oauth2.core.oidc.user.OidcUserAuthority;
import org.springframework.security.oauth2.core.user.DefaultOAuth2User;
import org.springframework.security.oauth2.server.resource.introspection.OpaqueTokenIntrospector;
import org.springframework.security.oauth2.server.resource.introspection.SpringOpaqueTokenIntrospector;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.security.web.authentication.logout.LogoutHandler;
import org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler;
import org.springframework.security.web.authentication.www.BasicAuthenticationFilter;
import org.springframework.web.servlet.handler.HandlerMappingIntrospector;

import jakarta.servlet.DispatcherType;
import uk.ac.manchester.spinnaker.alloc.ServiceConfig.URLPathMaker;
import uk.ac.manchester.spinnaker.alloc.SpallocProperties.AuthProperties;
import uk.ac.manchester.spinnaker.utils.UsedInJavadocOnly;

/**
 * The security and administration configuration of the service.
 * <p>
 * <strong>Note:</strong> role expressions ({@link #IS_USER} and
 * {@link #IS_ADMIN}) must be applied (with {@code @}{@link PreAuthorize}) to
 * <em>interfaces</em> of classes (or methods of those interfaces) that are
 * Spring Beans in order for the security interception to be applied correctly.
 * This is the <em>only</em> combination that is known to work reliably.
 *
 * @author Donal Fellows
 */
@EnableWebSecurity
@Role(ROLE_APPLICATION)
@EnableMethodSecurity(prePostEnabled = true)
@UsedInJavadocOnly(PreAuthorize.class)
public class SecurityConfig {
        private static final Logger log = getLogger(SecurityConfig.class);

        /** How to assert that a user must be an admin. */
        public static final String IS_ADMIN = "hasRole('ADMIN')";

        /** How to assert that a user must be an admin. */
        public static final String IS_NMPI_EXEC = "hasRole('NMPI_EXEC')";

        /** How to assert that a user must be able to read summaries. */
        public static final String IS_READER = "hasRole('READER')";

        /** How to filter out job details that a given user may see (or not). */
        public static final String MAY_SEE_JOB_DETAILS = "#permit.admin or "
                        + " #permit.nmpiexec or "
                        + " #permit.name == filterObject.owner.orElse(null)";

        private static final ParameterizedTypeReference<
                        Map<String, Object>> PARAMETERIZED_RESPONSE_TYPE =
                                        new ParameterizedTypeReference<>() {
                                        };

        /**
         * How to assert that a user must be able to make jobs and read job details
         * in depth.
         */
        public static final String IS_USER = "hasRole('USER')";

        private static final String SESSION_COOKIE = "JSESSIONID";

        // ------------------------------------------------------------------------
        // What follows is UGLY stuff to make Java open HTTPS right
        private static X509TrustManager customTm;

        // Static because it has to be done very early.
        static {
                try {
                        installInjectableTrustStoreAsDefault(() -> customTm);
                        log.info("custom SSL trust injection point installed");
                } catch (Exception e) {
                        throw new RuntimeException("failed to set up SSL trust", e);
                }
        }

        /**
         * Builds a custom trust manager to plug into the Java runtime. This is so
         * that we can access resources managed by Keycloak, which is necessary
         * because Java doesn't trust its certificate by default (for messy
         * reasons).
         *
         * @param props
         *            Configuration properties
         * @return the custom trust manager, <em>already injected</em>
         * @throws IOException
         *             If the trust store can't be loaded because of I/O
         * @throws GeneralSecurityException
         *             If there is a security problem with the trust store
         * @see <a href="https://stackoverflow.com/a/24561444/301832">Stack
         *      Overflow</a>
         */
        @Bean
        @Role(ROLE_SUPPORT)
        static X509TrustManager customTrustManager(AuthProperties props)
                        throws IOException, GeneralSecurityException {
                var p = props.getOpenid();
                var tm = trustManager(loadTrustStore(p));
                customTm = tm;
                log.info("set trust store from {}", p.getTruststorePath().getURI());
                return tm;
        }

        // ------------------------------------------------------------------------

        @Autowired
        private BasicAuthEntryPoint authenticationEntryPoint;

        @Autowired
        private LocalAuthenticationProvider<?> localAuthProvider;

        @Autowired
        private AppAuthTransformationFilter authApplicationFilter;

        @Autowired
        private AuthenticationFailureHandler authenticationFailureHandler;

        @Autowired
        private AuthProperties properties;

        @Autowired
        private URLPathMaker urlMaker;

        /**
         * Configure things we plug into.
         *
         * @param auth
         *            The authentication manager builder to configure.
         */
        @Autowired
        public void configureGlobal(AuthenticationManagerBuilder auth) {
                auth.authenticationProvider(localAuthProvider);
        }

        private String oidcPath(String suffix) {
                return urlMaker.systemUrl("perform_oidc/" + suffix);
        }

        /**
         * Set up access control policies where they're not done by method security.
         * The {@code /info} part reveals admin details; you need {@code ROLE_ADMIN}
         * to view it. Everything to do with logging in <strong>must not</strong>
         * require being logged in. For anything else, as long as you are
         * authenticated we're happy. <em>Some</em> calls have additional
         * requirements; those are annotated with {@link PreAuthorize @PreAuthorize}
         * and a suitable auth expression.
         *
         * @param http
         *            Where the configuration is applied to.
         * @param introspector
         *           The introspector used to build request matchers.
         * @throws Exception
         *             If anything goes wrong with setting up.
         */
        private void defineAccessPolicy(HttpSecurity http,
                        HandlerMappingIntrospector introspector) throws Exception {
                http.authorizeHttpRequests((authorize) -> authorize
                                // Allow forwarded requests
                                .dispatcherTypeMatchers(DispatcherType.FORWARD).permitAll()
                                // Login process and static resources are available to all
                                .requestMatchers(pathPattern(urlMaker.systemUrl("login*")),
                                                pathPattern(urlMaker.systemUrl("perform_*")),
                                                pathPattern(oidcPath("**")),
                                                pathPattern(urlMaker.systemUrl("error")),
                                                pathPattern(urlMaker.systemUrl("resources/*")),
                                                pathPattern(urlMaker.serviceUrl("openapi.json")),
                                                pathPattern(urlMaker.serviceUrl("swagger*")),
                                                pathPattern(urlMaker.serviceUrl("index.css")))
                                .permitAll()
                                // Everything else requires post-login
                                .anyRequest().authenticated());
        }

        /**
         * How we handle the mechanics of login with the REST API.
         *
         * @param http
         *            Where the configuration is applied to.
         * @throws Exception
         *             If anything goes wrong with setting up. Not expected.
         */
        private void defineAPILoginRules(HttpSecurity http) throws Exception {
                if (properties.isBasic()) {
                        http.httpBasic((authorize) -> authorize
                                        .authenticationEntryPoint(authenticationEntryPoint));
                }
                if (properties.getOpenid().isEnable()) {
                        http.oauth2ResourceServer((authorize) -> authorize
                                        .authenticationEntryPoint(authenticationEntryPoint)
                                        .opaqueToken(oauth2 -> oauth2
                                                .introspector(new UserInfoOpaqueTokenIntrospector())));
                }
        }

        /**
         * How we handle the mechanics of login within the web UI.
         *
         * @param http
         *            Where the configuration is applied to.
         * @throws Exception
         *             If anything goes wrong with setting up. Not expected.
         */
        private void defineWebUILoginRules(HttpSecurity http) throws Exception {
                var loginUrl = urlMaker.systemUrl("login.html");
                var rootPage = urlMaker.systemUrl("");
                if (properties.getOpenid().isEnable()) {
                        /*
                         * We're both, so we can have logins AND tokens. The logins are for
                         * using the HTML UI, and the tokens are for using from SpiNNaker
                         * tools (especially within the collabratory and the Jupyter
                         * notebook).
                         */
                        http.oauth2Login(oauth2 -> oauth2.loginPage(loginUrl)
                                        .loginProcessingUrl(oidcPath("login/code/*"))
                                        .authorizationEndpoint(
                                                        auth -> auth.baseUri(oidcPath("auth")))
                                        .defaultSuccessUrl(rootPage, true)
                                        .failureUrl(loginUrl + "?error=true")
                                        .userInfoEndpoint(auth -> auth
                                                .userAuthoritiesMapper(userAuthoritiesMapper()))
                                        .permitAll());
                        http.oauth2Client(Customizer.withDefaults());
                }
                if (properties.isLocalForm()) {
                        http.formLogin(auth -> auth.loginPage(loginUrl)
                                        .loginProcessingUrl(urlMaker.systemUrl("perform_login"))
                                        .defaultSuccessUrl(rootPage, true)
                                        .failureUrl(loginUrl + "?error=true")
                                        .failureHandler(authenticationFailureHandler)
                                        .permitAll());
                }
        }

        /**
         * Logging out is common code between the UI and the API, but pretty
         * pointless for Basic Auth as browsers will just log straight back in
         * again. Still, it is meaningful (it invalidates the session).
         *
         * @param http
         *            Where the configuration is applied to.
         * @throws Exception
         *             If anything goes wrong with setting up. Not expected.
         */
        private void defineLogoutRules(HttpSecurity http) throws Exception {
                var loginUrl = urlMaker.systemUrl("login.html");
                http.logout(cust -> cust.logoutUrl(urlMaker.systemUrl("perform_logout"))
                                .addLogoutHandler((req, resp, auth) -> clearToken(req))
                                .deleteCookies(SESSION_COOKIE).invalidateHttpSession(true)
                                .logoutSuccessUrl(loginUrl));
        }

        /**
         * Define our main security controls.
         *
         * @param http
         *            Used to build the filter chain.
         * @param introspector
         *            The introspector used to build request matchers.
         * @return The filter chain that implements the controls.
         * @throws Exception
         *             If anything goes wrong with setting up. Not expected.
         */
        @Bean
        @Role(ROLE_SUPPORT)
        public SecurityFilterChain securityFilter(HttpSecurity http,
                        HandlerMappingIntrospector introspector)
                        throws Exception {
                defineAccessPolicy(http, introspector);
                defineAPILoginRules(http);
                defineWebUILoginRules(http);
                defineLogoutRules(http);
                http.addFilterAfter(authApplicationFilter,
                                BasicAuthenticationFilter.class);
                http.securityContext((securityContext) ->
                                securityContext.requireExplicitSave(false));
                return http.build();
        }

        private final class UserInfoOpaqueTokenIntrospector
                        implements OpaqueTokenIntrospector {
                private final OpaqueTokenIntrospector delegate;

                private final String userInfoUri;

                private UserInfoOpaqueTokenIntrospector() {
                        var p = properties.getOpenid();

                        delegate = SpringOpaqueTokenIntrospector
                                        .withIntrospectionUri(p.getIntrospection())
                                        .clientId(p.getId()).clientSecret(p.getSecret()).build();
                        userInfoUri = p.getUserinfo();
                }

                @Override
                public OAuth2AuthenticatedPrincipal introspect(String token) {
                        var authorized = delegate.introspect(token);
                        Instant issuedAt = authorized.getAttribute("issued-at");
                        Instant expiresAt = authorized.getAttribute("expires-at");

                        var userAttributes = userinfo(token);
                        var authorities = new LinkedHashSet<GrantedAuthority>();
                        var auth = new OidcUserAuthority(
                                        new OidcIdToken(token, issuedAt, expiresAt, userAttributes),
                                        new OidcUserInfo(userAttributes));
                        localAuthProvider.mapAuthorities(auth, authorities);
                        return new DefaultOAuth2User(authorities, userAttributes,
                                        "preferred_username");
                }

                private Map<String, Object> userinfo(String token) {
                        log.debug("Fetching user info from {}", userInfoUri);
                        var headers = new HttpHeaders();
                        headers.setAccept(List.of(APPLICATION_JSON));
                        headers.setBearerAuth(token);
                        var request = new RequestEntity<>(headers, GET,
                                        URI.create(userInfoUri));
                                        
                        var restTemplate = new RestTemplateBuilder().build();
                        restTemplate.setErrorHandler(new OAuth2ErrorResponseErrorHandler());
                        var response =
                                        restTemplate.exchange(request, PARAMETERIZED_RESPONSE_TYPE);

                        return response.getBody();
                }
        }

        /**
         * @return A converter that handles the initial extraction of collabratories
         *         and organisations from the info we have available when a user
         *         logs in explicitly in the web UI.
         * @see LocalAuthProviderImpl#mapAuthorities(OidcUserAuthority, Collection)
         */
        @Bean("hbp.collab-and-org.user-converter.shim")
        @Role(ROLE_SUPPORT)
        GrantedAuthoritiesMapper userAuthoritiesMapper() {
                var baseMapper = new SimpleAuthorityMapper();
                return authorities -> {
                        var mappedAuthorities = baseMapper.mapAuthorities(authorities);
                        authorities.forEach(authority -> {
                                /*
                                 * Check for OidcUserAuthority because Spring Security 5.2
                                 * returns each scope as a GrantedAuthority, which we don't care
                                 * about.
                                 */
                                if (authority instanceof OidcUserAuthority) {
                                        localAuthProvider.mapAuthorities(
                                                        (OidcUserAuthority) authority, mappedAuthorities);
                                }
                                mappedAuthorities.add(authority);
                        });
                        return mappedAuthorities;
                };
        }

        @Bean
        @Role(ROLE_SUPPORT)
        LogoutHandler logoutHandler() {
                var handler = new SecurityContextLogoutHandler();
                handler.setClearAuthentication(true);
                handler.setInvalidateHttpSession(true);
                return handler;
        }
}

1	/*
2	* Copyright (c) 2021 The University of Manchester
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* https://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*/
16	package uk.ac.manchester.spinnaker.alloc.security;
17
18	import static org.slf4j.LoggerFactory.getLogger;
19	import static org.springframework.beans.factory.config.BeanDefinition.ROLE_APPLICATION;
20	import static org.springframework.beans.factory.config.BeanDefinition.ROLE_SUPPORT;
21	import static org.springframework.http.HttpMethod.GET;
22	import static org.springframework.http.MediaType.APPLICATION_JSON;
23	import static org.springframework.util.StreamUtils.copyToByteArray;
24	import static uk.ac.manchester.spinnaker.alloc.security.AppAuthTransformationFilter.clearToken;
25	import static uk.ac.manchester.spinnaker.alloc.security.Utils.installInjectableTrustStoreAsDefault;
26	import static uk.ac.manchester.spinnaker.alloc.security.Utils.loadTrustStore;
27	import static uk.ac.manchester.spinnaker.alloc.security.Utils.trustManager;
28	import static org.springframework.security.web.servlet.util.matcher.PathPatternRequestMatcher.pathPattern;
29
30	import java.io.IOException;
31	import java.net.URI;
32	import java.security.GeneralSecurityException;
33	import java.time.Instant;
34	import java.util.Collection;
35	import java.util.LinkedHashSet;
36	import java.util.List;
37	import java.util.Map;
38
39	import javax.net.ssl.X509TrustManager;
40
41	import org.apache.commons.logging.LogFactory;
42	import org.slf4j.Logger;
43	import org.springframework.beans.factory.annotation.Autowired;
44	import org.springframework.boot.restclient.RestTemplateBuilder;
45	import org.springframework.context.annotation.Bean;
46	import org.springframework.context.annotation.Role;
47	import org.springframework.core.ParameterizedTypeReference;
48	import org.springframework.http.HttpHeaders;
49	import org.springframework.http.HttpRequest;
50	import org.springframework.http.RequestEntity;
51	import org.springframework.http.client.ClientHttpResponse;
52	import org.springframework.security.access.prepost.PreAuthorize;
53	import org.springframework.security.config.Customizer;
54	import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
55	import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
56	import org.springframework.security.config.annotation.web.builders.HttpSecurity;
57	import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
58	import org.springframework.security.core.GrantedAuthority;
59	import org.springframework.security.core.authority.mapping.GrantedAuthoritiesMapper;
60	import org.springframework.security.core.authority.mapping.SimpleAuthorityMapper;
61	import org.springframework.security.oauth2.client.http.OAuth2ErrorResponseErrorHandler;
62	import org.springframework.security.oauth2.core.OAuth2AuthenticatedPrincipal;
63	import org.springframework.security.oauth2.core.oidc.OidcIdToken;
64	import org.springframework.security.oauth2.core.oidc.OidcUserInfo;
65	import org.springframework.security.oauth2.core.oidc.user.OidcUserAuthority;
66	import org.springframework.security.oauth2.core.user.DefaultOAuth2User;
67	import org.springframework.security.oauth2.server.resource.introspection.OpaqueTokenIntrospector;
68	import org.springframework.security.oauth2.server.resource.introspection.SpringOpaqueTokenIntrospector;
69	import org.springframework.security.web.SecurityFilterChain;
70	import org.springframework.security.web.authentication.AuthenticationFailureHandler;
71	import org.springframework.security.web.authentication.logout.LogoutHandler;
72	import org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler;
73	import org.springframework.security.web.authentication.www.BasicAuthenticationFilter;
74	import org.springframework.web.servlet.handler.HandlerMappingIntrospector;
75
76	import jakarta.servlet.DispatcherType;
77	import uk.ac.manchester.spinnaker.alloc.ServiceConfig.URLPathMaker;
78	import uk.ac.manchester.spinnaker.alloc.SpallocProperties.AuthProperties;
79	import uk.ac.manchester.spinnaker.utils.UsedInJavadocOnly;
80
81	/**
82	* The security and administration configuration of the service.
83	* <p>
84	* <strong>Note:</strong> role expressions ({@link #IS_USER} and
85	* {@link #IS_ADMIN}) must be applied (with {@code @}{@link PreAuthorize}) to
86	* <em>interfaces</em> of classes (or methods of those interfaces) that are
87	* Spring Beans in order for the security interception to be applied correctly.
88	* This is the <em>only</em> combination that is known to work reliably.
89	*
90	* @author Donal Fellows
91	*/
92	@EnableWebSecurity
93	@Role(ROLE_APPLICATION)
94	@EnableMethodSecurity(prePostEnabled = true)
95	@UsedInJavadocOnly(PreAuthorize.class)
96	public class SecurityConfig {	2✔
97	private static final Logger log = getLogger(SecurityConfig.class);	2✔
98
99	/** How to assert that a user must be an admin. */
100	public static final String IS_ADMIN = "hasRole('ADMIN')";
101
102	/** How to assert that a user must be an admin. */
103	public static final String IS_NMPI_EXEC = "hasRole('NMPI_EXEC')";
104
105	/** How to assert that a user must be able to read summaries. */
106	public static final String IS_READER = "hasRole('READER')";
107
108	/** How to filter out job details that a given user may see (or not). */
109	public static final String MAY_SEE_JOB_DETAILS = "#permit.admin or "
110	+ " #permit.nmpiexec or "
111	+ " #permit.name == filterObject.owner.orElse(null)";
112
113	private static final ParameterizedTypeReference<
114	Map<String, Object>> PARAMETERIZED_RESPONSE_TYPE =	2✔
115	new ParameterizedTypeReference<>() {	2✔
116	};
117
118	/**
119	* How to assert that a user must be able to make jobs and read job details
120	* in depth.
121	*/
122	public static final String IS_USER = "hasRole('USER')";
123
124	private static final String SESSION_COOKIE = "JSESSIONID";
125
126	// ------------------------------------------------------------------------
127	// What follows is UGLY stuff to make Java open HTTPS right
128	private static X509TrustManager customTm;
129
130	// Static because it has to be done very early.
131	static {
132	try {
133	installInjectableTrustStoreAsDefault(() -> customTm);	2✔
134	log.info("custom SSL trust injection point installed");	2✔
135	} catch (Exception e) {	×
136	throw new RuntimeException("failed to set up SSL trust", e);	×
137	}	2✔
138	}	2✔
139
140	/**
141	* Builds a custom trust manager to plug into the Java runtime. This is so
142	* that we can access resources managed by Keycloak, which is necessary
143	* because Java doesn't trust its certificate by default (for messy
144	* reasons).
145	*
146	* @param props
147	* Configuration properties
148	* @return the custom trust manager, <em>already injected</em>
149	* @throws IOException
150	* If the trust store can't be loaded because of I/O
151	* @throws GeneralSecurityException
152	* If there is a security problem with the trust store
153	* @see <a href="https://stackoverflow.com/a/24561444/301832">Stack
154	* Overflow</a>
155	*/
156	@Bean
157	@Role(ROLE_SUPPORT)
158	static X509TrustManager customTrustManager(AuthProperties props)
159	throws IOException, GeneralSecurityException {
160	var p = props.getOpenid();	2✔
161	var tm = trustManager(loadTrustStore(p));	2✔
162	customTm = tm;	2✔
163	log.info("set trust store from {}", p.getTruststorePath().getURI());	2✔
164	return tm;	2✔
165	}
166
167	// ------------------------------------------------------------------------
168
169	@Autowired
170	private BasicAuthEntryPoint authenticationEntryPoint;
171
172	@Autowired
173	private LocalAuthenticationProvider<?> localAuthProvider;
174
175	@Autowired
176	private AppAuthTransformationFilter authApplicationFilter;
177
178	@Autowired
179	private AuthenticationFailureHandler authenticationFailureHandler;
180
181	@Autowired
182	private AuthProperties properties;
183
184	@Autowired
185	private URLPathMaker urlMaker;
186
187	/**
188	* Configure things we plug into.
189	*
190	* @param auth
191	* The authentication manager builder to configure.
192	*/
193	@Autowired
194	public void configureGlobal(AuthenticationManagerBuilder auth) {
195	auth.authenticationProvider(localAuthProvider);	2✔
196	}	2✔
197
198	private String oidcPath(String suffix) {
199	return urlMaker.systemUrl("perform_oidc/" + suffix);	2✔
200	}
201
202	/**
203	* Set up access control policies where they're not done by method security.
204	* The {@code /info} part reveals admin details; you need {@code ROLE_ADMIN}
205	* to view it. Everything to do with logging in <strong>must not</strong>
206	* require being logged in. For anything else, as long as you are
207	* authenticated we're happy. <em>Some</em> calls have additional
208	* requirements; those are annotated with {@link PreAuthorize @PreAuthorize}
209	* and a suitable auth expression.
210	*
211	* @param http
212	* Where the configuration is applied to.
213	* @param introspector
214	* The introspector used to build request matchers.
215	* @throws Exception
216	* If anything goes wrong with setting up.
217	*/
218	private void defineAccessPolicy(HttpSecurity http,
219	HandlerMappingIntrospector introspector) throws Exception {
220	http.authorizeHttpRequests((authorize) -> authorize	2✔
221	// Allow forwarded requests
222	.dispatcherTypeMatchers(DispatcherType.FORWARD).permitAll()	2✔
223	// Login process and static resources are available to all
224	.requestMatchers(pathPattern(urlMaker.systemUrl("login*")),	2✔
225	pathPattern(urlMaker.systemUrl("perform_*")),	2✔
226	pathPattern(oidcPath("**")),	2✔
227	pathPattern(urlMaker.systemUrl("error")),	2✔
228	pathPattern(urlMaker.systemUrl("resources/*")),	2✔
229	pathPattern(urlMaker.serviceUrl("openapi.json")),	2✔
230	pathPattern(urlMaker.serviceUrl("swagger*")),	2✔
231	pathPattern(urlMaker.serviceUrl("index.css")))	2✔
232	.permitAll()	2✔
233	// Everything else requires post-login
234	.anyRequest().authenticated());	2✔
235	}	2✔
236
237	/**
238	* How we handle the mechanics of login with the REST API.
239	*
240	* @param http
241	* Where the configuration is applied to.
242	* @throws Exception
243	* If anything goes wrong with setting up. Not expected.
244	*/
245	private void defineAPILoginRules(HttpSecurity http) throws Exception {
246	if (properties.isBasic()) {	2!
247	http.httpBasic((authorize) -> authorize	2✔
248	.authenticationEntryPoint(authenticationEntryPoint));	2✔
249	}
250	if (properties.getOpenid().isEnable()) {	2!
251	http.oauth2ResourceServer((authorize) -> authorize	×
252	.authenticationEntryPoint(authenticationEntryPoint)	×
253	.opaqueToken(oauth2 -> oauth2	×
254	.introspector(new UserInfoOpaqueTokenIntrospector())));	×
255	}
256	}	2✔
257
258	/**
259	* How we handle the mechanics of login within the web UI.
260	*
261	* @param http
262	* Where the configuration is applied to.
263	* @throws Exception
264	* If anything goes wrong with setting up. Not expected.
265	*/
266	private void defineWebUILoginRules(HttpSecurity http) throws Exception {
267	var loginUrl = urlMaker.systemUrl("login.html");	2✔
268	var rootPage = urlMaker.systemUrl("");	2✔
269	if (properties.getOpenid().isEnable()) {	2!
270	/*
271	* We're both, so we can have logins AND tokens. The logins are for
272	* using the HTML UI, and the tokens are for using from SpiNNaker
273	* tools (especially within the collabratory and the Jupyter
274	* notebook).
275	*/
276	http.oauth2Login(oauth2 -> oauth2.loginPage(loginUrl)	×
277	.loginProcessingUrl(oidcPath("login/code/*"))	×
278	.authorizationEndpoint(	×
279	auth -> auth.baseUri(oidcPath("auth")))	×
280	.defaultSuccessUrl(rootPage, true)	×
281	.failureUrl(loginUrl + "?error=true")	×
282	.userInfoEndpoint(auth -> auth	×
283	.userAuthoritiesMapper(userAuthoritiesMapper()))	×
284	.permitAll());	×
285	http.oauth2Client(Customizer.withDefaults());	×
286	}
287	if (properties.isLocalForm()) {	2!
288	http.formLogin(auth -> auth.loginPage(loginUrl)	2✔
289	.loginProcessingUrl(urlMaker.systemUrl("perform_login"))	2✔
290	.defaultSuccessUrl(rootPage, true)	2✔
291	.failureUrl(loginUrl + "?error=true")	2✔
292	.failureHandler(authenticationFailureHandler)	2✔
293	.permitAll());	2✔
294	}
295	}	2✔
296
297	/**
298	* Logging out is common code between the UI and the API, but pretty
299	* pointless for Basic Auth as browsers will just log straight back in
300	* again. Still, it is meaningful (it invalidates the session).
301	*
302	* @param http
303	* Where the configuration is applied to.
304	* @throws Exception
305	* If anything goes wrong with setting up. Not expected.
306	*/
307	private void defineLogoutRules(HttpSecurity http) throws Exception {
308	var loginUrl = urlMaker.systemUrl("login.html");	2✔
309	http.logout(cust -> cust.logoutUrl(urlMaker.systemUrl("perform_logout"))	2✔
310	.addLogoutHandler((req, resp, auth) -> clearToken(req))	2✔
311	.deleteCookies(SESSION_COOKIE).invalidateHttpSession(true)	2✔
312	.logoutSuccessUrl(loginUrl));	2✔
313	}	2✔
314
315	/**
316	* Define our main security controls.
317	*
318	* @param http
319	* Used to build the filter chain.
320	* @param introspector
321	* The introspector used to build request matchers.
322	* @return The filter chain that implements the controls.
323	* @throws Exception
324	* If anything goes wrong with setting up. Not expected.
325	*/
326	@Bean
327	@Role(ROLE_SUPPORT)
328	public SecurityFilterChain securityFilter(HttpSecurity http,
329	HandlerMappingIntrospector introspector)
330	throws Exception {
331	defineAccessPolicy(http, introspector);	2✔
332	defineAPILoginRules(http);	2✔
333	defineWebUILoginRules(http);	2✔
334	defineLogoutRules(http);	2✔
335	http.addFilterAfter(authApplicationFilter,	2✔
336	BasicAuthenticationFilter.class);
337	http.securityContext((securityContext) ->	2✔
338	securityContext.requireExplicitSave(false));	2✔
339	return http.build();	2✔
340	}
341
342	private final class UserInfoOpaqueTokenIntrospector
343	implements OpaqueTokenIntrospector {
344	private final OpaqueTokenIntrospector delegate;
345
346	private final String userInfoUri;
347
348	private UserInfoOpaqueTokenIntrospector() {	×
349	var p = properties.getOpenid();	×
350
351	delegate = SpringOpaqueTokenIntrospector	×
352	.withIntrospectionUri(p.getIntrospection())	×
353	.clientId(p.getId()).clientSecret(p.getSecret()).build();	×
354	userInfoUri = p.getUserinfo();	×
355	}	×
356
357	@Override
358	public OAuth2AuthenticatedPrincipal introspect(String token) {
359	var authorized = delegate.introspect(token);	×
360	Instant issuedAt = authorized.getAttribute("issued-at");	×
361	Instant expiresAt = authorized.getAttribute("expires-at");	×
362
363	var userAttributes = userinfo(token);	×
364	var authorities = new LinkedHashSet<GrantedAuthority>();	×
365	var auth = new OidcUserAuthority(	×
366	new OidcIdToken(token, issuedAt, expiresAt, userAttributes),
367	new OidcUserInfo(userAttributes));
368	localAuthProvider.mapAuthorities(auth, authorities);	×
369	return new DefaultOAuth2User(authorities, userAttributes,	×
370	"preferred_username");
371	}
372
373	private Map<String, Object> userinfo(String token) {
374	log.debug("Fetching user info from {}", userInfoUri);	×
375	var headers = new HttpHeaders();	×
376	headers.setAccept(List.of(APPLICATION_JSON));	×
377	headers.setBearerAuth(token);	×
378	var request = new RequestEntity<>(headers, GET,	×
379	URI.create(userInfoUri));	×
380
NEW 381	var restTemplate = new RestTemplateBuilder().build();	×
382	restTemplate.setErrorHandler(new OAuth2ErrorResponseErrorHandler());	×
383	var response =	×
384	restTemplate.exchange(request, PARAMETERIZED_RESPONSE_TYPE);	×
385
386	return response.getBody();	×
387	}
388	}
389
390	/**
391	* @return A converter that handles the initial extraction of collabratories
392	* and organisations from the info we have available when a user
393	* logs in explicitly in the web UI.
394	* @see LocalAuthProviderImpl#mapAuthorities(OidcUserAuthority, Collection)
395	*/
396	@Bean("hbp.collab-and-org.user-converter.shim")
397	@Role(ROLE_SUPPORT)
398	GrantedAuthoritiesMapper userAuthoritiesMapper() {
399	var baseMapper = new SimpleAuthorityMapper();	2✔
400	return authorities -> {	2✔
401	var mappedAuthorities = baseMapper.mapAuthorities(authorities);	×
402	authorities.forEach(authority -> {	×
403	/*
404	* Check for OidcUserAuthority because Spring Security 5.2
405	* returns each scope as a GrantedAuthority, which we don't care
406	* about.
407	*/
408	if (authority instanceof OidcUserAuthority) {	×
409	localAuthProvider.mapAuthorities(	×
410	(OidcUserAuthority) authority, mappedAuthorities);
411	}
412	mappedAuthorities.add(authority);	×
413	});	×
414	return mappedAuthorities;	×
415	};
416	}
417
418	@Bean
419	@Role(ROLE_SUPPORT)
420	LogoutHandler logoutHandler() {
421	var handler = new SecurityContextLogoutHandler();	2✔
422	handler.setClearAuthentication(true);	2✔
423	handler.setInvalidateHttpSession(true);	2✔
424	return handler;	2✔
425	}
426	}

SpiNNakerManchester / JavaSpiNNaker / 7361

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