2025-11 spring-ss-acl

2026-05-30 10:50:42 +00:00 · 2026-03-03 13:51:26 +03:00
parent a5a0b22e69
commit 5ccf3ad624
29 changed files with 1071 additions and 0 deletions
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>spring-framework-26-acl</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.6.10</version>
+    </parent>
+
+    <properties>
+        <ehcache-core.version>2.6.11</ehcache-core.version>
+        <swagger.version>3.0.0</swagger.version>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <java.version>11</java.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-thymeleaf</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
+        <!-- Spring Security ACL и зависимости-->
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-acl</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>net.sf.ehcache</groupId>
+            <artifactId>ehcache-core</artifactId>
+            <version>${ehcache-core.version}</version>
+            <type>jar</type>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-context-support</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+
+<!--            <version>1.4.198</version>-->
+        </dependency>
+
+        <dependency>
+            <groupId>org.springdoc</groupId>
+            <artifactId>springdoc-openapi-ui</artifactId>
+            <version>1.6.9</version>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>
@@ -0,0 +1,14 @@
+package ru.otus.spring;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+
+@SpringBootApplication
+public class Main {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Main.class);
+    }
+}
@@ -0,0 +1,30 @@
+package ru.otus.spring.model;
+
+import javax.persistence.*;
+
+@Entity
+@Table(name = "system_message")
+public class NoticeMessage {
+
+    @Id
+    @Column
+    private Integer id;
+    @Column
+    private String content;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+}
@@ -0,0 +1,21 @@
+package ru.otus.spring.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.repository.query.Param;
+import org.springframework.security.access.prepost.PostAuthorize;
+import org.springframework.security.access.prepost.PostFilter;
+import org.springframework.security.access.prepost.PreAuthorize;
+import ru.otus.spring.model.NoticeMessage;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface NoticeMessageRepository extends JpaRepository<NoticeMessage, Integer> {
+
+    List<NoticeMessage> findAll();
+
+    Optional<NoticeMessage> findById(Integer id);
+
+    NoticeMessage save(NoticeMessage noticeMessage);
+
+}
@@ -0,0 +1,39 @@
+package ru.otus.spring.rest;
+
+import org.springframework.web.bind.annotation.*;
+import ru.otus.spring.model.NoticeMessage;
+import ru.otus.spring.repository.NoticeMessageRepository;
+import ru.otus.spring.service.NoticeService;
+
+import java.util.List;
+
+@RestController
+public class NoticeMessageController {
+
+    private final NoticeService noticeService;
+
+    public NoticeMessageController(NoticeService noticeService) {
+        this.noticeService = noticeService;
+    }
+
+    @GetMapping("/message")
+    public List<NoticeMessage> getAll() {
+        return noticeService.getAll();
+    }
+
+    @GetMapping("/message/{id}")
+    public NoticeMessage get(@PathVariable("id") Integer id) {
+        var result = noticeService.get( id );
+        return result;
+    }
+
+    @PostMapping("/message")
+    public NoticeMessage createMessage(@RequestBody NoticeMessage message) {
+        return noticeService.create(message);
+    }
+
+    @PutMapping("/message/{id}")
+    public NoticeMessage updateMessage(@PathVariable("id") Integer id, @RequestBody NoticeMessage message) {
+        return noticeService.update(message);
+    }
+}
@@ -0,0 +1,79 @@
+package ru.otus.spring.security;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cache.ehcache.EhCacheFactoryBean;
+import org.springframework.cache.ehcache.EhCacheManagerFactoryBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.access.expression.method.DefaultMethodSecurityExpressionHandler;
+import org.springframework.security.access.expression.method.MethodSecurityExpressionHandler;
+import org.springframework.security.acls.AclPermissionCacheOptimizer;
+import org.springframework.security.acls.AclPermissionEvaluator;
+import org.springframework.security.acls.domain.*;
+import org.springframework.security.acls.jdbc.BasicLookupStrategy;
+import org.springframework.security.acls.jdbc.JdbcMutableAclService;
+import org.springframework.security.acls.jdbc.LookupStrategy;
+import org.springframework.security.acls.model.PermissionGrantingStrategy;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+
+import javax.sql.DataSource;
+import java.util.Objects;
+
+@Configuration
+public class AclConfig {
+
+    @SuppressWarnings("SpringJavaAutowiredFieldsWarningInspection")
+    @Autowired
+    private DataSource dataSource;
+
+    @Bean
+    public EhCacheBasedAclCache aclCache() {
+        return new EhCacheBasedAclCache(
+                Objects.requireNonNull(aclEhCacheFactoryBean().getObject()),
+                permissionGrantingStrategy(),
+                aclAuthorizationStrategy()
+        );
+    }
+
+    @Bean
+    public EhCacheFactoryBean aclEhCacheFactoryBean() {
+        EhCacheFactoryBean ehCacheFactoryBean = new EhCacheFactoryBean();
+        ehCacheFactoryBean.setCacheManager(aclCacheManager().getObject());
+        ehCacheFactoryBean.setCacheName("aclCache");
+        return ehCacheFactoryBean;
+    }
+
+    @Bean
+    public EhCacheManagerFactoryBean aclCacheManager() {
+        return new EhCacheManagerFactoryBean();
+    }
+
+    @Bean
+    public PermissionGrantingStrategy permissionGrantingStrategy() {
+        return new DefaultPermissionGrantingStrategy(new ConsoleAuditLogger());
+    }
+
+    @Bean
+    public AclAuthorizationStrategy aclAuthorizationStrategy() {
+        return new AclAuthorizationStrategyImpl(new SimpleGrantedAuthority("ROLE_EDITOR"));
+    }
+
+    @Bean
+    public MethodSecurityExpressionHandler defaultMethodSecurityExpressionHandler() {
+        AclMethodSecurityExpressionHandler expressionHandler = new AclMethodSecurityExpressionHandler();
+        AclPermissionEvaluator permissionEvaluator = new AclPermissionEvaluator(aclService());
+        expressionHandler.setPermissionEvaluator(permissionEvaluator);
+        expressionHandler.setPermissionCacheOptimizer(new AclPermissionCacheOptimizer(aclService()));
+        return expressionHandler;
+    }
+
+    @Bean
+    public LookupStrategy lookupStrategy() {
+        return new BasicLookupStrategy(dataSource, aclCache(), aclAuthorizationStrategy(), new ConsoleAuditLogger());
+    }
+
+    @Bean
+    public JdbcMutableAclService aclService() {
+        return new JdbcMutableAclService(dataSource, lookupStrategy(), aclCache());
+    }
+}
@@ -0,0 +1,29 @@
+package ru.otus.spring.security;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.access.expression.method.MethodSecurityExpressionHandler;
+import org.springframework.security.acls.model.AclService;
+import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
+import org.springframework.security.config.annotation.method.configuration.GlobalMethodSecurityConfiguration;
+
+@Configuration
+@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)
+public class AclMethodSecurityConfiguration extends GlobalMethodSecurityConfiguration {
+
+    private final AclService aclService;
+
+    public AclMethodSecurityConfiguration(AclService aclService) {
+        this.aclService = aclService;
+    }
+
+    @SuppressWarnings("SpringJavaAutowiredFieldsWarningInspection")
+    @Autowired
+    MethodSecurityExpressionHandler defaultMethodSecurityExpressionHandler;
+
+    @Override
+    protected MethodSecurityExpressionHandler createExpressionHandler() {
+        return defaultMethodSecurityExpressionHandler;
+    }
+
+}
@@ -0,0 +1,23 @@
+package ru.otus.spring.security;
+
+import org.aopalliance.intercept.MethodInvocation;
+import org.springframework.security.access.expression.method.DefaultMethodSecurityExpressionHandler;
+import org.springframework.security.access.expression.method.MethodSecurityExpressionOperations;
+import org.springframework.security.core.Authentication;
+
+public class AclMethodSecurityExpressionHandler extends DefaultMethodSecurityExpressionHandler {
+
+    @Override
+    protected MethodSecurityExpressionOperations createSecurityExpressionRoot(Authentication authentication,
+                                                                              MethodInvocation invocation) {
+
+        AclMethodSecurityExpressionRoot root = new AclMethodSecurityExpressionRoot(authentication);
+        root.setThis(invocation.getThis());
+        root.setPermissionEvaluator(this.getPermissionEvaluator());
+        root.setTrustResolver(this.getTrustResolver());
+        root.setRoleHierarchy(this.getRoleHierarchy());
+        root.setDefaultRolePrefix(this.getDefaultRolePrefix());
+
+        return root;
+    }
+}
@@ -0,0 +1,12 @@
+package ru.otus.spring.security;
+
+import org.springframework.security.access.expression.method.MethodSecurityExpressionOperations;
+
+public interface AclMethodSecurityExpressionOperations extends MethodSecurityExpressionOperations {
+
+    boolean isAdministrator(Object targetId, Class<?> targetClass);
+
+    boolean isAdministrator(Object target);
+
+    boolean canRead(Object targetId, Class<?> targetClass);
+}
@@ -0,0 +1,69 @@
+package ru.otus.spring.security;
+
+import org.springframework.security.access.expression.SecurityExpressionRoot;
+import org.springframework.security.core.Authentication;
+
+public class AclMethodSecurityExpressionRoot extends SecurityExpressionRoot implements AclMethodSecurityExpressionOperations {
+
+    private Object filterObject;
+    private Object returnObject;
+    private Object target;
+
+    public AclMethodSecurityExpressionRoot(Authentication authentication) {
+        super(authentication);
+    }
+
+    void setThis(Object target) {
+        this.target = target;
+    }
+
+    @Override
+    public Object getFilterObject() {
+        return filterObject;
+    }
+
+    @Override
+    public void setFilterObject(Object filterObject) {
+        this.filterObject = filterObject;
+    }
+
+    @Override
+    public Object getReturnObject() {
+        return returnObject;
+    }
+
+    @Override
+    public void setReturnObject(Object returnObject) {
+        this.returnObject = returnObject;
+    }
+
+    @Override
+    public Object getThis() {
+        return this.target;
+    }
+
+    @Override
+    public boolean isAdministrator(Object targetId, Class<?> targetClass) {
+
+        return isGranted(targetId, targetClass, admin);
+    }
+
+    @Override
+    public boolean isAdministrator(Object target) {
+
+        return hasPermission(target, admin);
+    }
+
+    @Override
+    public boolean canRead(Object targetId, Class<?> targetClass) {
+
+        if(isAdministrator(targetId, targetClass)) return true;
+
+        return isGranted(targetId, targetClass, read);
+    }
+
+    boolean isGranted(Object targetId, Class<?> targetClass, Object permission) {
+
+        return hasPermission(targetId, targetClass.getCanonicalName(), permission);
+    }
+}
@@ -0,0 +1,42 @@
+package ru.otus.spring.security;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.core.userdetails.User;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.provisioning.InMemoryUserDetailsManager;
+import org.springframework.security.web.SecurityFilterChain;
+
+import java.util.ArrayList;
+
+@EnableWebSecurity
+public class SecurityConfiguration {
+
+    @Bean
+    public SecurityFilterChain securityFilterChain( HttpSecurity http ) throws Exception {
+        http
+                .csrf().disable()
+                .authorizeHttpRequests( ( authorize ) -> authorize
+                        .antMatchers( "/**", "/" ).permitAll()
+                )
+                .httpBasic();
+        return http.build();
+    }
+
+    @Bean
+    public InMemoryUserDetailsManager userDetailsService() {
+        var users = new ArrayList<UserDetails>();
+        users.add( User
+                .withDefaultPasswordEncoder().username("admin").password("password").roles("USER")
+                .build() );
+        users.add( User
+                .withDefaultPasswordEncoder().username("user").password("password").roles("USER")
+                .build() );
+        users.add( User
+                .withDefaultPasswordEncoder().username("someone").password("password").roles("EDITOR")
+                .build() );
+        return new InMemoryUserDetailsManager( users );
+
+    }
+}
@@ -0,0 +1,9 @@
+package ru.otus.spring.service;
+
+import org.springframework.security.acls.domain.BasePermission;
+import org.springframework.security.acls.model.Permission;
+
+public interface AclServiceWrapperService {
+
+    void createPermission(Object object, Permission permission);
+}
@@ -0,0 +1,34 @@
+package ru.otus.spring.service;
+
+import org.springframework.security.acls.domain.BasePermission;
+import org.springframework.security.acls.domain.GrantedAuthoritySid;
+import org.springframework.security.acls.domain.ObjectIdentityImpl;
+import org.springframework.security.acls.domain.PrincipalSid;
+import org.springframework.security.acls.model.*;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.stereotype.Service;
+
+@Service
+public class AclServiceWrapperServiceImpl implements AclServiceWrapperService {
+
+    private final MutableAclService mutableAclService;
+
+    public AclServiceWrapperServiceImpl(MutableAclService mutableAclService) {
+        this.mutableAclService = mutableAclService;
+    }
+
+    @Override
+    public void createPermission(Object object, Permission permission) {
+        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
+        final Sid owner = new PrincipalSid(authentication);
+        ObjectIdentity oid = new ObjectIdentityImpl(object);
+
+        final Sid admin = new GrantedAuthoritySid("ROLE_EDITOR");
+
+        MutableAcl acl = mutableAclService.createAcl(oid);
+        acl.insertAce(acl.getEntries().size(), permission, owner, true);
+        acl.insertAce(acl.getEntries().size(), permission, admin, true);
+        mutableAclService.updateAcl(acl);
+    }
+}
@@ -0,0 +1,16 @@
+package ru.otus.spring.service;
+
+import ru.otus.spring.model.NoticeMessage;
+
+import java.util.List;
+
+public interface NoticeService {
+
+    NoticeMessage create(NoticeMessage message);
+
+    NoticeMessage get(Integer id);
+
+    List<NoticeMessage> getAll();
+
+    NoticeMessage update(NoticeMessage message);
+}
@@ -0,0 +1,60 @@
+package ru.otus.spring.service;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.access.prepost.PostFilter;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.security.acls.domain.BasePermission;
+import org.springframework.security.acls.domain.GrantedAuthoritySid;
+import org.springframework.security.acls.domain.ObjectIdentityImpl;
+import org.springframework.security.acls.domain.PrincipalSid;
+import org.springframework.security.acls.model.MutableAcl;
+import org.springframework.security.acls.model.MutableAclService;
+import org.springframework.security.acls.model.ObjectIdentity;
+import org.springframework.security.acls.model.Sid;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import ru.otus.spring.model.NoticeMessage;
+import ru.otus.spring.repository.NoticeMessageRepository;
+
+import java.util.List;
+
+@Service
+public class NoticeServiceImpl implements NoticeService {
+
+    private final AclServiceWrapperService aclServiceWrapperService;
+
+    private final NoticeMessageRepository repository;
+
+    public NoticeServiceImpl(AclServiceWrapperService aclServiceWrapperService, NoticeMessageRepository repository) {
+        this.aclServiceWrapperService = aclServiceWrapperService;
+        this.repository = repository;
+    }
+
+    @Override
+    @Transactional
+    public NoticeMessage create(NoticeMessage message) {
+        NoticeMessage savedMessage = repository.save(message);
+        aclServiceWrapperService.createPermission(savedMessage, BasePermission.READ);
+        return savedMessage;
+    }
+
+    @Override
+    @PostFilter("hasPermission(filterObject, 'READ')")
+    public List<NoticeMessage> getAll() {
+        return repository.findAll();
+    }
+
+    @Override
+    @PreAuthorize("hasPermission(#message, 'WRITE')")
+    public NoticeMessage update(NoticeMessage message) {
+        return repository.save(message);
+    }
+
+    @Override
+    @PreAuthorize("canRead(#id, T(ru.otus.spring.model.NoticeMessage))")
+    public NoticeMessage get(Integer id) {
+        return repository.findById(id).get();
+    }
+}
@@ -0,0 +1,13 @@
+spring:
+  h2:
+    console:
+      enabled: true
+  jpa:
+    hibernate:
+      ddl-auto: none
+  datasource:
+    url: jdbc:h2:mem:testdb
+
+springdoc:
+  packages-to-scan: ru.otus.spring.rest
+  paths-to-match: /**
@@ -0,0 +1,28 @@
+INSERT INTO system_message(id,content) VALUES
+(1,'First Level Message'),
+(2,'Second Level Message'),
+(3,'Third Level Message');
+
+
+INSERT INTO acl_sid (id, principal, sid) VALUES
+(1, 1, 'admin'),
+(2, 1, 'user'),
+(3, 0, 'ROLE_EDITOR');
+
+INSERT INTO acl_class (id, class) VALUES
+(1, 'ru.otus.spring.model.NoticeMessage');
+
+INSERT INTO acl_object_identity (id, object_id_class, object_id_identity, parent_object, owner_sid, entries_inheriting) VALUES
+(1, 1, 1, NULL, 3, 0),
+(2, 1, 2, NULL, 3, 0),
+(3, 1, 3, NULL, 3, 0);
+
+INSERT INTO acl_entry (id, acl_object_identity, ace_order, sid, mask,
+                       granting, audit_success, audit_failure) VALUES
+(1, 1, 1, 1, 1, 1, 1, 1),
+(2, 1, 2, 1, 2, 1, 1, 1),
+(3, 1, 3, 3, 1, 1, 1, 1),
+(4, 2, 1, 2, 1, 1, 1, 1),
+(5, 2, 2, 3, 1, 1, 1, 1),
+(6, 3, 1, 3, 1, 1, 1, 1),
+(7, 3, 2, 3, 2, 1, 1, 1);
@@ -0,0 +1,88 @@
+{
+	"info": {
+		"_postman_id": "00ffe5e9-877c-418a-b088-4409f34756e9",
+		"name": "New Collection",
+		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json",
+		"_exporter_id": "46752532",
+		"_collection_link": "https://uladzimirmaherau.postman.co/workspace/Uladzimir-Maherau's-Workspace~acb6d39e-e608-4ada-8982-80dabd38178f/collection/46752532-00ffe5e9-877c-418a-b088-4409f34756e9?action=share&source=collection_link&creator=46752532"
+	},
+	"item": [
+		{
+			"name": "http://localhost:8080/message",
+			"request": {
+				"auth": {
+					"type": "basic",
+					"basic": [
+						{
+							"key": "password",
+							"value": "password",
+							"type": "string"
+						},
+						{
+							"key": "username",
+							"value": "admin",
+							"type": "string"
+						}
+					]
+				},
+				"method": "POST",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "    {\r\n        \"id\": 11,\r\n        \"content\": \"11 Level Message\"\r\n    }",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": {
+					"raw": "http://localhost:8080/message",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"message"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "http://localhost:8080/message",
+			"request": {
+				"auth": {
+					"type": "basic",
+					"basic": [
+						{
+							"key": "password",
+							"value": "password",
+							"type": "string"
+						},
+						{
+							"key": "username",
+							"value": "admin",
+							"type": "string"
+						}
+					]
+				},
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/message",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"message"
+					]
+				}
+			},
+			"response": []
+		}
+	]
+}
@@ -0,0 +1,113 @@
+{
+  "openapi": "3.0.1",
+  "info": {
+    "title": "OpenAPI definition",
+    "version": "v0"
+  },
+  "servers": [
+    {
+      "url": "http://localhost:8080",
+      "description": "Generated server url"
+    }
+  ],
+  "paths": {
+    "/message": {
+      "get": {
+        "tags": [
+          "notice-message-controller"
+        ],
+        "operationId": "getAll",
+        "responses": {
+          "200": {
+            "description": "OK",
+            "content": {
+              "*/*": {
+                "schema": {
+                  "type": "array",
+                  "items": {
+                    "$ref": "#/components/schemas/NoticeMessage"
+                  }
+                }
+              }
+            }
+          }
+        }
+      },
+      "put": {
+        "tags": [
+          "notice-message-controller"
+        ],
+        "operationId": "getById",
+        "parameters": [
+          {
+            "name": "message",
+            "in": "query",
+            "required": true,
+            "schema": {
+              "$ref": "#/components/schemas/NoticeMessage"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "content": {
+              "*/*": {
+                "schema": {
+                  "$ref": "#/components/schemas/NoticeMessage"
+                }
+              }
+            }
+          }
+        }
+      }
+    },
+    "/message/{id}": {
+      "get": {
+        "tags": [
+          "notice-message-controller"
+        ],
+        "operationId": "getById_1",
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "integer",
+              "format": "int32"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "content": {
+              "*/*": {
+                "schema": {
+                  "$ref": "#/components/schemas/NoticeMessage"
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  },
+  "components": {
+    "schemas": {
+      "NoticeMessage": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "integer",
+            "format": "int32"
+          },
+          "content": {
+            "type": "string"
+          }
+        }
+      }
+    }
+  }
+}
@@ -0,0 +1,58 @@
+create table IF NOT EXISTS system_message (id integer not null, content varchar(255), primary key (id));
+
+CREATE TABLE IF NOT EXISTS acl_sid (
+  id bigint(20) NOT NULL AUTO_INCREMENT,
+  principal tinyint(1) NOT NULL,
+  sid varchar(100) NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_uk_1 (sid,principal)
+);
+
+CREATE TABLE IF NOT EXISTS acl_class (
+  id bigint(20) NOT NULL AUTO_INCREMENT,
+  class varchar(255) NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_uk_2 (class)
+);
+ 
+CREATE TABLE IF NOT EXISTS acl_entry (
+  id bigint(20) NOT NULL AUTO_INCREMENT,
+  acl_object_identity bigint(20) NOT NULL,
+  ace_order int(11) NOT NULL,
+  sid bigint(20) NOT NULL,
+  mask int(11) NOT NULL,
+  granting tinyint(1) NOT NULL,
+  audit_success tinyint(1) NOT NULL,
+  audit_failure tinyint(1) NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_uk_4 (acl_object_identity,ace_order)
+);
+ 
+CREATE TABLE IF NOT EXISTS acl_object_identity (
+  id bigint(20) NOT NULL AUTO_INCREMENT,
+  object_id_class bigint(20) NOT NULL,
+  object_id_identity bigint(20) NOT NULL,
+  parent_object bigint(20) DEFAULT NULL,
+  owner_sid bigint(20) DEFAULT NULL,
+  entries_inheriting tinyint(1) NOT NULL,
+  PRIMARY KEY (id),
+  UNIQUE KEY unique_uk_3 (object_id_class,object_id_identity)
+);
+ 
+ALTER TABLE acl_entry
+ADD FOREIGN KEY (acl_object_identity) REFERENCES acl_object_identity(id);
+
+ALTER TABLE acl_entry
+ADD FOREIGN KEY (sid) REFERENCES acl_sid(id);
+ 
+--
+-- Constraints for table acl_object_identity
+--
+ALTER TABLE acl_object_identity
+ADD FOREIGN KEY (parent_object) REFERENCES acl_object_identity (id);
+
+ALTER TABLE acl_object_identity
+ADD FOREIGN KEY (object_id_class) REFERENCES acl_class (id);
+
+ALTER TABLE acl_object_identity
+ADD FOREIGN KEY (owner_sid) REFERENCES acl_sid (id);
@@ -0,0 +1,9 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8"/>
+</head>
+<body>
+Вам доступ запрещён!
+</body>
+</html>
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8"/>
+</head>
+<body>
+<a th:href="@{login}">login</a>
+<br>
+<a th:href="@{logout}">logout</a>
+<br>
+<a th:href="@{h2-console}">h2-console</a>
+<br>
+<a th:href="@{swagger-ui.html}">/swagger</a>
+</body>
+</html>
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>spring-framework-27-oauth</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.6.10</version>
+    </parent>
+
+    <properties>
+        <ehcache-core.version>2.6.11</ehcache-core.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-thymeleaf</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-oauth2-client</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+        </dependency>
+
+
+        <dependency>
+            <groupId>org.springdoc</groupId>
+            <artifactId>springdoc-openapi-ui</artifactId>
+            <version>1.6.9</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.webjars</groupId>
+            <artifactId>jquery</artifactId>
+            <version>3.4.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.webjars</groupId>
+            <artifactId>bootstrap</artifactId>
+            <version>4.3.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.webjars</groupId>
+            <artifactId>webjars-locator-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.webjars</groupId>
+            <artifactId>js-cookie</artifactId>
+            <version>2.1.0</version>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>
@@ -0,0 +1,13 @@
+package ru.otus.spring.sso;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class GithubApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run( GithubApplication.class, args);
+	}
+
+}
@@ -0,0 +1,13 @@
+package ru.otus.spring.sso.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+
+@Controller
+public class IndexController {
+
+    @GetMapping("/")
+    public String indexPage() {
+        return "index";
+    }
+}
@@ -0,0 +1,17 @@
+package ru.otus.spring.sso.controller;
+
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.security.oauth2.core.user.OAuth2User;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Collections;
+import java.util.Map;
+
+@RestController
+public class UserController {
+    @GetMapping("/user")
+    public Map<String, Object> user( @AuthenticationPrincipal OAuth2User principal) {
+        return Collections.singletonMap("name", principal.getAttribute("name"));
+    }
+}
@@ -0,0 +1,26 @@
+package ru.otus.spring.sso.security;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
+import org.springframework.security.web.authentication.HttpStatusEntryPoint;
+
+public class SecurityConfig extends WebSecurityConfigurerAdapter {
+    @Override
+    protected void configure( HttpSecurity http ) throws Exception {
+        http
+                .authorizeRequests( a -> a
+                        .antMatchers( "/", "/error", "/webjars/**" ).permitAll()
+                        .anyRequest().authenticated()
+                )
+                .exceptionHandling( e -> e
+                        .authenticationEntryPoint( new HttpStatusEntryPoint( HttpStatus.UNAUTHORIZED ) )
+                )
+                .csrf().disable()
+                .logout( l -> l
+                        .logoutSuccessUrl( "/" ).permitAll()
+                )
+
+                .oauth2Login();
+    }
+}
@@ -0,0 +1,13 @@
+spring:
+  security:
+    oauth2:
+      client:
+        registration:
+          github:
+            clientId: Ov23liJ3EIv6UfvJ4jPr
+            clientSecret: 0cb7763869aaa2151a399336c64cdef2618c6332
+
+logging:
+  level:
+    root: error
+    org.springframework.security: DEBUG
@@ -0,0 +1,18 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="utf-8"/>
+    <meta http-equiv="X-UA-Compatible" content="IE=edge"/>
+    <title>Demo</title>
+    <meta name="description" content=""/>
+    <meta name="viewport" content="width=device-width"/>
+    <base href="/"/>
+    <link rel="stylesheet" type="text/css" href="/webjars/bootstrap/css/bootstrap.min.css"/>
+    <script type="text/javascript" src="/webjars/jquery/jquery.min.js"></script>
+    <script type="text/javascript" src="/webjars/bootstrap/js/bootstrap.min.js"></script>
+</head>
+<body>
+<h1>Demo</h1>
+<div class="container"></div>
+</body>
+</html>