core/spring/src/main/java/org/apache/syncope/core/spring/security/WebSecurityContext.java

/*
 * 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.syncope.core.spring.security;

import org.apache.syncope.common.keymaster.client.api.ConfParamOps;
import org.apache.syncope.common.keymaster.client.api.DomainOps;
import org.apache.syncope.core.persistence.api.ImplementationLookup;
import org.apache.syncope.core.persistence.api.dao.AccessTokenDAO;
import org.apache.syncope.core.persistence.api.dao.AnySearchDAO;
import org.apache.syncope.core.persistence.api.dao.AnyTypeDAO;
import org.apache.syncope.core.persistence.api.dao.DelegationDAO;
import org.apache.syncope.core.persistence.api.dao.GroupDAO;
import org.apache.syncope.core.persistence.api.dao.RealmDAO;
import org.apache.syncope.core.persistence.api.dao.RoleDAO;
import org.apache.syncope.core.persistence.api.dao.UserDAO;
import org.apache.syncope.core.provisioning.api.AuditManager;
import org.apache.syncope.core.provisioning.api.ConnectorManager;
import org.apache.syncope.core.provisioning.api.MappingManager;
import org.apache.syncope.core.provisioning.api.UserProvisioningManager;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.security.web.access.intercept.FilterSecurityInterceptor;
import org.springframework.security.web.authentication.www.BasicAuthenticationFilter;
import org.springframework.security.web.context.NullSecurityContextRepository;
import org.springframework.security.web.firewall.DefaultHttpFirewall;
import org.springframework.security.web.firewall.HttpFirewall;

@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class WebSecurityContext extends WebSecurityConfigurerAdapter {

    @Autowired
    private SecurityProperties securityProperties;

    @Autowired
    private ApplicationContext ctx;

    public WebSecurityContext() {
        super(true);
        SecurityContextHolder.setStrategyName(SecurityContextHolder.MODE_INHERITABLETHREADLOCAL);
    }

    @Bean
    public HttpFirewall allowUrlEncodedSlashHttpFirewall() {
        DefaultHttpFirewall firewall = new DefaultHttpFirewall();
        firewall.setAllowUrlEncodedSlash(true);
        return firewall;
    }

    @Override
    public void configure(final WebSecurity web) {
        web.httpFirewall(allowUrlEncodedSlashHttpFirewall());
    }

    @ConditionalOnMissingBean
    @Bean
    @Autowired
    public UsernamePasswordAuthenticationProvider usernamePasswordAuthenticationProvider(
            final DomainOps domainOps,
            final AuthDataAccessor dataAccessor,
            final UserProvisioningManager provisioningManager,
            final DefaultCredentialChecker credentialChecker) {

        return new UsernamePasswordAuthenticationProvider(
                domainOps,
                dataAccessor,
                provisioningManager,
                credentialChecker,
                securityProperties);
    }

    @ConditionalOnMissingBean
    @Bean
    @Autowired
    public JWTAuthenticationProvider jwtAuthenticationProvider(final AuthDataAccessor authDataAccessor) {
        return new JWTAuthenticationProvider(authDataAccessor);
    }

    @Override
    protected void configure(final AuthenticationManagerBuilder builder) throws Exception {
        builder.
                authenticationProvider(ctx.getBean(UsernamePasswordAuthenticationProvider.class)).
                authenticationProvider(ctx.getBean(JWTAuthenticationProvider.class));
    }

    @Bean
    public AccessDeniedHandler accessDeniedHandler() {
        return new SyncopeAccessDeniedHandler();
    }

    @Override
    protected void configure(final HttpSecurity http) throws Exception {
        SyncopeBasicAuthenticationEntryPoint basicAuthenticationEntryPoint = new SyncopeBasicAuthenticationEntryPoint();
        basicAuthenticationEntryPoint.setRealmName("Apache Syncope authentication");

        SyncopeAuthenticationDetailsSource authenticationDetailsSource = new SyncopeAuthenticationDetailsSource();

        JWTAuthenticationFilter jwtAuthenticationFilter = new JWTAuthenticationFilter(
                authenticationManager(),
                basicAuthenticationEntryPoint,
                authenticationDetailsSource,
                ctx.getBean(AuthDataAccessor.class),
                ctx.getBean(DefaultCredentialChecker.class));

        http.authorizeRequests().
                antMatchers("/**").permitAll().and().
                sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and().
                securityContext().securityContextRepository(new NullSecurityContextRepository()).and().
                anonymous().principal(securityProperties.getAnonymousUser()).and().
                httpBasic().authenticationEntryPoint(basicAuthenticationEntryPoint).
                authenticationDetailsSource(authenticationDetailsSource).and().
                exceptionHandling().accessDeniedHandler(accessDeniedHandler()).and().
                addFilterBefore(jwtAuthenticationFilter, BasicAuthenticationFilter.class).
                addFilterBefore(new MustChangePasswordFilter(), FilterSecurityInterceptor.class).
                headers().disable().
                csrf().disable();
    }

    @ConditionalOnMissingBean
    @Bean
    @Autowired
    public AuthDataAccessor authDataAccessor(
            final RealmDAO realmDAO,
            final UserDAO userDAO,
            final GroupDAO groupDAO,
            final AnyTypeDAO anyTypeDAO,
            final AnySearchDAO anySearchDAO,
            final AccessTokenDAO accessTokenDAO,
            final ConfParamOps confParamOps,
            final RoleDAO roleDAO,
            final DelegationDAO delegationDAO,
            final ConnectorManager connectorManager,
            final AuditManager auditManager,
            final MappingManager mappingManager,
            final ImplementationLookup implementationLookup) {

        return new AuthDataAccessor(
                securityProperties,
                realmDAO,
                userDAO,
                groupDAO,
                anyTypeDAO,
                anySearchDAO,
                accessTokenDAO,
                confParamOps,
                roleDAO,
                delegationDAO,
                connectorManager,
                auditManager,
                mappingManager,
                implementationLookup);
    }
}