Lab06 (mvc) готово

build.gradle

@@ -27,6 +27,9 @@ dependencies {
 
 	implementation 'org.hibernate.validator:hibernate-validator'
 
+	implementation 'org.springframework.boot:spring-boot-starter-security'
+	implementation 'org.thymeleaf.extras:thymeleaf-extras-springsecurity5'
+
 	implementation 'org.springdoc:springdoc-openapi-ui:1.6.5'
 
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'

src/main/java/ru/ulstu/is/sbapp/configuration/PasswordEncoderConfiguration.java

@@ -0,0 +1,14 @@
+package ru.ulstu.is.sbapp.configuration;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.security.crypto.password.PasswordEncoder;
+
+@Configuration
+public class PasswordEncoderConfiguration {
+    @Bean
+    public PasswordEncoder createPasswordEncoder() {
+        return new BCryptPasswordEncoder();
+    }
+}

src/main/java/ru/ulstu/is/sbapp/configuration/SecurityConfiguration.java

@@ -0,0 +1,68 @@
+package ru.ulstu.is.sbapp.configuration;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.HttpMethod;
+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 ru.ulstu.is.sbapp.socialNetwork.controller.UserSignupMvcController;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserRole;
+import ru.ulstu.is.sbapp.socialNetwork.services.MyUserService;
+import ru.ulstu.is.sbapp.socialNetwork.services.UserService;
+
+@Configuration
+@EnableWebSecurity
+@EnableGlobalMethodSecurity(securedEnabled = true)
+public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
+    private final Logger log = LoggerFactory.getLogger(SecurityConfiguration.class);
+    private static final String LOGIN_URL = "/login";
+    private final UserService userService;
+
+    public SecurityConfiguration(UserService userService) {
+        this.userService = userService;
+        createAdminOnStartup();
+    }
+
+    private void createAdminOnStartup() {
+        final String admin = "admin";
+        if (userService.findByLogin(admin) == null) {
+            log.info("Admin user successfully created");
+            userService.createUser(admin, admin, admin, UserRole.ADMIN);
+        }
+    }
+
+    @Override
+    protected void configure(HttpSecurity http) throws Exception {
+        http.headers().frameOptions().sameOrigin().and()
+                .cors().and()
+                .csrf().disable()
+                .authorizeRequests()
+                .antMatchers(UserSignupMvcController.SIGNUP_URL).permitAll()
+                .antMatchers(HttpMethod.GET, LOGIN_URL).permitAll()
+                .anyRequest().authenticated()
+                .and()
+                .formLogin()
+                .loginPage(LOGIN_URL).permitAll()
+                .and()
+                .logout().permitAll();
+    }
+
+    @Override
+    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
+        auth.userDetailsService(userService);
+    }
+
+    @Override
+    public void configure(WebSecurity web) {
+        web.ignoring()
+                .antMatchers("/css/**")
+                .antMatchers("/js/**")
+                .antMatchers("/templates/**")
+                .antMatchers("/webjars/**");
+    }
+}

src/main/java/ru/ulstu/is/sbapp/configuration/WebConfiguration.java

@@ -1,4 +1,4 @@
-package ru.ulstu.is.sbapp;
+package ru.ulstu.is.sbapp.configuration;
 
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.servlet.config.annotation.CorsRegistry;
@@ -20,6 +20,7 @@ public class WebConfiguration implements WebMvcConfigurer {
         registry.addViewController("users");
         registry.addViewController("contacts");
         registry.addViewController("catalogs");
+        registry.addViewController("login");
     }
     @Override
     public void addResourceHandlers(ResourceHandlerRegistry registry) {

src/main/java/ru/ulstu/is/sbapp/socialNetwork/controller/CommunityController.java

@@ -1,7 +1,7 @@
 package ru.ulstu.is.sbapp.socialNetwork.controller;
 
 import org.springframework.web.bind.annotation.*;
-import ru.ulstu.is.sbapp.WebConfiguration;
+import ru.ulstu.is.sbapp.configuration.WebConfiguration;
 import ru.ulstu.is.sbapp.socialNetwork.dto.CommunityDTO;
 import ru.ulstu.is.sbapp.socialNetwork.services.CommunityService;
 

src/main/java/ru/ulstu/is/sbapp/socialNetwork/controller/MusicController.java

@@ -2,11 +2,9 @@ package ru.ulstu.is.sbapp.socialNetwork.controller;
 
 
 import org.springframework.web.bind.annotation.*;
-import ru.ulstu.is.sbapp.WebConfiguration;
+import ru.ulstu.is.sbapp.configuration.WebConfiguration;
 import ru.ulstu.is.sbapp.socialNetwork.dto.MusicDTO;
-import ru.ulstu.is.sbapp.socialNetwork.models.Music;
 import ru.ulstu.is.sbapp.socialNetwork.services.MusicService;
-import org.springframework.web.bind.annotation.*;
 
 import javax.validation.Valid;
 import java.util.List;

src/main/java/ru/ulstu/is/sbapp/socialNetwork/controller/UserController.java

@@ -1,10 +1,10 @@
 package ru.ulstu.is.sbapp.socialNetwork.controller;
 
 import org.springframework.web.bind.annotation.*;
-import ru.ulstu.is.sbapp.WebConfiguration;
+import ru.ulstu.is.sbapp.configuration.WebConfiguration;
-import ru.ulstu.is.sbapp.socialNetwork.dto.UserDTO;
+import ru.ulstu.is.sbapp.socialNetwork.dto.MyUserDTO;
 import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
-import ru.ulstu.is.sbapp.socialNetwork.services.UserService;
+import ru.ulstu.is.sbapp.socialNetwork.services.MyUserService;
 
 
 import javax.validation.Valid;
@@ -14,55 +14,55 @@ import java.util.List;
 @RestController
 @RequestMapping(WebConfiguration.REST_API + "/users")
 public class UserController {
-    private final UserService userService;
+    private final MyUserService userService;
 
-    public UserController(UserService userService){
+    public UserController(MyUserService userService){
         this.userService = userService;
     }
 
     @GetMapping("/{id}")
-    public UserDTO getUser(@PathVariable Long id) {
+    public MyUserDTO getUser(@PathVariable Long id) {
-        return new UserDTO(userService.findUser(id));
+        return new MyUserDTO(userService.findUser(id));
     }
 
     @GetMapping("")
-    public List<UserDTO> getUsers() {
+    public List<MyUserDTO> getUsers() {
-        return userService.findAllUsers().stream().map(UserDTO::new).toList();
+        return userService.findAllUsers().stream().map(MyUserDTO::new).toList();
     }
 
     @PostMapping("")
-    public UserDTO createUser(@RequestBody @Valid UserDTO user) {
+    public MyUserDTO createUser(@RequestBody @Valid MyUserDTO user) {
         UserModel result = userService.addUser(user.getName(), user.getCity());
         userService.updateCommunities(result.getId(), user.getCommunity());
-        return new UserDTO(userService.updateMusics(result.getId(), user.getMusic()));
+        return new MyUserDTO(userService.updateMusics(result.getId(), user.getMusic()));
     }
 
     @PatchMapping("/{id}")
-    public UserDTO updateUser(@PathVariable Long id,
+    public MyUserDTO updateUser(@PathVariable Long id,
-                              @RequestBody @Valid UserDTO user) {
+                                @RequestBody @Valid MyUserDTO user) {
         UserModel result = userService.updateUser(id, user.getName());
         userService.updateCommunities(result.getId(), user.getCommunity());
-        return new UserDTO(userService.updateMusics(result.getId(), user.getMusic()));
+        return new MyUserDTO(userService.updateMusics(result.getId(), user.getMusic()));
     }
 
     @PatchMapping("/add_music/{id}")
-    public UserDTO addMusic(@PathVariable Long id, @RequestParam Long music_id) {
+    public MyUserDTO addMusic(@PathVariable Long id, @RequestParam Long music_id) {
-        return new UserDTO(userService.addMusic(id, music_id));
+        return new MyUserDTO(userService.addMusic(id, music_id));
     }
 
     @PatchMapping("/add_community/{id}")
-    public UserDTO addCommunity(@PathVariable Long id, @RequestParam Long community_id) {
+    public MyUserDTO addCommunity(@PathVariable Long id, @RequestParam Long community_id) {
-        return new UserDTO(userService.addCommunity(id, community_id));
+        return new MyUserDTO(userService.addCommunity(id, community_id));
     }
     @GetMapping("/search")
-    public List<UserDTO> searchUsers(@RequestParam("city") String city) {
+    public List<MyUserDTO> searchUsers(@RequestParam("city") String city) {
         List<UserModel> users = userService.findUserByCity(city);
-        return users.stream().map(UserDTO::new).toList();
+        return users.stream().map(MyUserDTO::new).toList();
     }
 
     @DeleteMapping("/{id}")
-    public UserDTO deleteUser(@PathVariable Long id) {
+    public MyUserDTO deleteUser(@PathVariable Long id) {
-        return new UserDTO(userService.deleteUser(id));
+        return new MyUserDTO(userService.deleteUser(id));
     }
 
 }

src/main/java/ru/ulstu/is/sbapp/socialNetwork/controller/UserMvcController.java

@@ -0,0 +1,42 @@
+package ru.ulstu.is.sbapp.socialNetwork.controller;
+
+import org.springframework.data.domain.Page;
+import org.springframework.security.access.annotation.Secured;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import ru.ulstu.is.sbapp.socialNetwork.dto.UserDto;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserRole;
+import ru.ulstu.is.sbapp.socialNetwork.services.UserService;
+
+import java.util.List;
+import java.util.stream.IntStream;
+
+@Controller
+@RequestMapping("/users")
+public class UserMvcController {
+    private final UserService userService;
+
+    public UserMvcController(UserService userService) {
+        this.userService = userService;
+    }
+
+    @GetMapping
+    @Secured({UserRole.AsString.ADMIN})
+    public String getUsers(@RequestParam(defaultValue = "1") int page,
+                           @RequestParam(defaultValue = "5") int size,
+                           Model model) {
+        final Page<UserDto> users = userService.findAllPages(page, size)
+                .map(UserDto::new);
+        model.addAttribute("users", users);
+        final int totalPages = users.getTotalPages();
+        final List<Integer> pageNumbers = IntStream.rangeClosed(1, totalPages)
+                .boxed()
+                .toList();
+        model.addAttribute("pages", pageNumbers);
+        model.addAttribute("totalPages", totalPages);
+        return "users";
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/controller/UserSignupMvcController.java

@@ -0,0 +1,51 @@
+package ru.ulstu.is.sbapp.socialNetwork.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import ru.ulstu.is.sbapp.socialNetwork.models.User;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserSignupDto;
+import ru.ulstu.is.sbapp.socialNetwork.services.UserService;
+import ru.ulstu.is.sbapp.socialNetwork.util.validation.ValidationException;
+
+import javax.validation.Valid;
+
+@Controller
+@RequestMapping(UserSignupMvcController.SIGNUP_URL)
+public class UserSignupMvcController {
+    public static final String SIGNUP_URL = "/signup";
+
+    private final UserService userService;
+
+    public UserSignupMvcController(UserService userService) {
+        this.userService = userService;
+    }
+
+    @GetMapping
+    public String showSignupForm(Model model) {
+        model.addAttribute("userDto", new UserSignupDto());
+        return "signup";
+    }
+
+    @PostMapping
+    public String signup(@ModelAttribute("userDto") @Valid UserSignupDto userSignupDto,
+                         BindingResult bindingResult,
+                         Model model) {
+        if (bindingResult.hasErrors()) {
+            model.addAttribute("errors", bindingResult.getAllErrors());
+            return "signup";
+        }
+        try {
+            final User user = userService.createUser(
+                    userSignupDto.getLogin(), userSignupDto.getPassword(), userSignupDto.getPasswordConfirm());
+            return "redirect:/login?created=" + user.getLogin();
+        } catch (ValidationException e) {
+            model.addAttribute("errors", e.getMessage());
+            return "signup";
+        }
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/dto/MyUserDTO.java

@@ -6,14 +6,14 @@ import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
 
 import java.util.List;
 
-public class UserDTO {
+public class MyUserDTO {
     private Long id;
     private String name;
     private String city;
 
-    public UserDTO(){}
+    public MyUserDTO(){}
 
-    public UserDTO(UserModel user){
+    public MyUserDTO(UserModel user){
 
         this.id = user.getId();
         this.name = user.getName();
@@ -25,7 +25,7 @@ public class UserDTO {
             this.community = user.getGroups().stream().map(Community::getName).toList();
         }
     }
-    public UserDTO(Long id, String name) {
+    public MyUserDTO(Long id, String name) {
         this.id = id;
         this.name = name;
     }

src/main/java/ru/ulstu/is/sbapp/socialNetwork/dto/UserDto.java

@@ -0,0 +1,28 @@
+package ru.ulstu.is.sbapp.socialNetwork.dto;
+
+import ru.ulstu.is.sbapp.socialNetwork.models.User;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserRole;
+
+public class UserDto {
+    private final long id;
+    private final String login;
+    private final UserRole role;
+
+    public UserDto(User user) {
+        this.id = user.getId();
+        this.login = user.getLogin();
+        this.role = user.getRole();
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public String getLogin() {
+        return login;
+    }
+
+    public UserRole getRole() {
+        return role;
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/models/User.java

@@ -0,0 +1,73 @@
+package ru.ulstu.is.sbapp.socialNetwork.models;
+
+import javax.persistence.*;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.Size;
+import java.util.Objects;
+
+@Entity
+@Table(name = "users")
+public class User {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+    @Column(nullable = false, unique = true, length = 64)
+    @NotBlank
+    @Size(min = 3, max = 64)
+    private String login;
+    @Column(nullable = false, length = 64)
+    @NotBlank
+    @Size(min = 6, max = 64)
+    private String password;
+    private UserRole role;
+
+    public User() {
+    }
+
+    public User(String login, String password) {
+        this(login, password, UserRole.USER);
+    }
+
+    public User(String login, String password, UserRole role) {
+        this.login = login;
+        this.password = password;
+        this.role = role;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public String getLogin() {
+        return login;
+    }
+
+    public void setLogin(String login) {
+        this.login = login;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public UserRole getRole() {
+        return role;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        User user = (User) o;
+        return Objects.equals(id, user.id) && Objects.equals(login, user.login);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, login);
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/models/UserRole.java

@@ -0,0 +1,20 @@
+package ru.ulstu.is.sbapp.socialNetwork.models;
+
+import org.springframework.security.core.GrantedAuthority;
+
+public enum UserRole implements GrantedAuthority {
+    ADMIN,
+    USER;
+
+    private static final String PREFIX = "ROLE_";
+
+    @Override
+    public String getAuthority() {
+        return PREFIX + this.name();
+    }
+
+    public static final class AsString {
+        public static final String ADMIN = PREFIX + "ADMIN";
+        public static final String USER = PREFIX + "USER";
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/models/UserSignupDto.java

@@ -0,0 +1,40 @@
+package ru.ulstu.is.sbapp.socialNetwork.models;
+
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.Size;
+
+public class UserSignupDto {
+    @NotBlank
+    @Size(min = 3, max = 64)
+    private String login;
+    @NotBlank
+    @Size(min = 6, max = 64)
+    private String password;
+    @NotBlank
+    @Size(min = 6, max = 64)
+    private String passwordConfirm;
+
+    public String getLogin() {
+        return login;
+    }
+
+    public void setLogin(String login) {
+        this.login = login;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public String getPasswordConfirm() {
+        return passwordConfirm;
+    }
+
+    public void setPasswordConfirm(String passwordConfirm) {
+        this.passwordConfirm = passwordConfirm;
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/repository/MyUserRepository.java

@@ -0,0 +1,10 @@
+package ru.ulstu.is.sbapp.socialNetwork.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
+
+import java.util.List;
+
+public interface MyUserRepository extends JpaRepository<UserModel, Long> {
+    List<UserModel> findByCity(String city);
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/repository/UserRepository.java

@@ -1,10 +1,8 @@
 package ru.ulstu.is.sbapp.socialNetwork.repository;
 
 import org.springframework.data.jpa.repository.JpaRepository;
-import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
+import ru.ulstu.is.sbapp.socialNetwork.models.User;
 
-import java.util.List;
+public interface UserRepository extends JpaRepository<User, Long> {
-
+    User findOneByLoginIgnoreCase(String login);
-public interface UserRepository extends JpaRepository<UserModel, Long> {
-    List<UserModel> findByCity(String city);
 }

src/main/java/ru/ulstu/is/sbapp/socialNetwork/services/MyUserService.java

@@ -0,0 +1,211 @@
+package ru.ulstu.is.sbapp.socialNetwork.services;
+
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.StringUtils;
+import ru.ulstu.is.sbapp.socialNetwork.models.Community;
+import ru.ulstu.is.sbapp.socialNetwork.models.Music;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
+import ru.ulstu.is.sbapp.socialNetwork.repository.MyUserRepository;
+
+import javax.persistence.EntityNotFoundException;
+import java.util.List;
+import java.util.Optional;
+
+@Service
+public class MyUserService {
+
+    private MyUserRepository repo;
+
+    private CommunityService communityService;
+    private MusicService musicService;
+
+    public MyUserService(MyUserRepository repo, MusicService musicService, CommunityService communityService) {
+        this.repo = repo;
+        this.musicService = musicService;
+        this.communityService = communityService;
+    }
+
+    @Transactional
+    public UserModel addUser(String name, String city) {
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("User name is null or empty");
+        }
+        UserModel user = new UserModel(name, city);
+        return repo.save(user);
+    }
+    @Transactional
+    public UserModel addUser(String name, String city, List<String> musics, List<String> communities) {
+
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("Name is null or empty");
+        }
+
+        UserModel user = new UserModel(name, city);
+        UserModel result = repo.save(user);
+
+        updateMusics(result.getId(), musics);
+        return updateCommunities(user.getId(), communities);
+    }
+
+    @Transactional
+    public UserModel addMusic(Long userId, Long musicId) {
+        final Optional<UserModel> userOpt= repo.findById(userId);
+
+        if (userOpt.isEmpty()) {
+            throw new EntityNotFoundException(String.format("User with id [%s] is not found", musicId));
+        }
+
+        UserModel user = userOpt.get();
+
+        final Music music = musicService.findMusic(musicId);
+        if (music == null) {
+            throw new EntityNotFoundException(String.format("Music with id [%s] is not found", musicId));
+        }
+
+        user.addMusic(music);
+        return repo.save(user);
+    }
+    @Transactional
+    public UserModel addCommunity(Long userId, Long communityId) {
+        final Optional<UserModel> userOpt = repo.findById(userId);
+
+        if (userOpt.isEmpty()) {
+            throw new EntityNotFoundException(String.format("User with id [%s] is not found", userId));
+        }
+
+        UserModel user = userOpt.get();
+
+        final Community community = communityService.findCommunity(communityId);
+        if (community == null) {
+            throw new EntityNotFoundException(String.format("Community with id [%s] is not found", communityId));
+        }
+
+        user.addCommunity(community);
+        return repo.save(user);
+    }
+
+    @Transactional(readOnly = true)
+    public UserModel findUser(Long id) {
+
+        final Optional<UserModel> user = repo.findById(id);
+        if (user.isEmpty()) {
+            throw new EntityNotFoundException(String.format("UserModel with id [%s] is not found", id));
+        }
+        return user.get();
+    }
+
+//    @Transactional(readOnly = true)
+//    public List<UserModel> findUserByCity(String city){
+//        Query query = repo.createQuery("select u from UserModel u where u.city = :city",
+//                UserModel.class).setParameter("city", city);
+//        List<UserModel>  result = query.getResultList();
+//       return result;
+//    }
+    @Transactional(readOnly = true)
+    public List<UserModel> findUserByCity(String city){
+        List<UserModel>  result = repo.findByCity(city);
+       return result;
+    }
+
+    @Transactional(readOnly = true)
+    public List<UserModel> findAllUsers() {
+        return repo.findAll();
+    }
+
+    @Transactional
+    public UserModel updateUser(Long id, String name) {
+
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("User name is null or empty");
+        }
+        final Optional<UserModel> currentUserOpt = repo.findById(id);
+
+        if(currentUserOpt.isEmpty()) {
+            return null;
+        }
+
+        final UserModel currentUser = currentUserOpt.get();
+
+        currentUser.setName(name);
+        return repo.save(currentUser);
+    }
+    //update community, musics
+    @Transactional
+    public UserModel updateUser(Long id, String name,String city, List<String> musics, List<String> Communities) {
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("User name is null or empty");
+        }
+        final Optional<UserModel> currentUserOpt = repo.findById(id);
+
+        if(currentUserOpt.isEmpty()) {
+            return null;
+        }
+
+        final UserModel currentUser = currentUserOpt.get();
+
+        currentUser.setName(name);
+        currentUser.setCity(city);
+        repo.save(currentUser);
+
+        updateMusics(id, musics);
+        return updateCommunities(id, Communities);
+    }
+    
+    @Transactional
+    public UserModel updateCommunities(Long userId , List<String> communities) {
+        final Optional<UserModel> userOpt = repo.findById(userId);
+
+        if (userOpt.isEmpty()) {
+            throw new EntityNotFoundException(String.format("UserModel with id [%s] is not found", userId));
+        }
+
+        UserModel user = userOpt.get();
+
+        user.deleteCommunities();
+
+        for(String c : communities) {
+            Community community = communityService.findByName(c);
+            user.addCommunity(community);
+        }
+        return repo.save(user);
+    }
+    @Transactional
+    public UserModel updateMusics(Long userId , List<String> musics) {
+        final Optional<UserModel> userOpt = repo.findById(userId);
+
+        if (userOpt.isEmpty()) {
+            throw new EntityNotFoundException(String.format("Music with id [%s] is not found", userId));
+        }
+
+        UserModel user = userOpt.get();
+
+        user.deleteMusics();
+
+        for(String m : musics) {
+            Music music = musicService.findByName(m);
+            user.addMusic(music);
+        }
+        return repo.save(user);
+    }
+
+
+    @Transactional
+    public UserModel deleteUser(Long id) {
+
+        final Optional<UserModel> currentUser = repo.findById(id);
+        if(currentUser.isEmpty()) {
+            return null;
+        }
+
+        repo.deleteById(id);
+        return currentUser.get();
+    }
+
+    @Transactional
+    public void deleteAllUsers() {
+        repo.deleteAll();
+    }
+
+
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/services/UserService.java

@@ -1,212 +1,67 @@
 package ru.ulstu.is.sbapp.socialNetwork.services;
 
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Sort;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
+import ru.ulstu.is.sbapp.socialNetwork.models.User;
-import org.springframework.util.StringUtils;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserRole;
-import ru.ulstu.is.sbapp.socialNetwork.models.Community;
-import ru.ulstu.is.sbapp.socialNetwork.models.Music;
-import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
 import ru.ulstu.is.sbapp.socialNetwork.repository.UserRepository;
+import ru.ulstu.is.sbapp.socialNetwork.util.validation.ValidationException;
+import ru.ulstu.is.sbapp.socialNetwork.util.validation.ValidatorUtil;
 
-import javax.persistence.EntityNotFoundException;
+import java.util.Collections;
-import javax.persistence.Query;
+import java.util.Objects;
-import java.util.List;
-import java.util.Optional;
 
 @Service
-public class UserService {
+public class UserService implements UserDetailsService {
+    private final UserRepository userRepository;
+    private final PasswordEncoder passwordEncoder;
+    private final ValidatorUtil validatorUtil;
 
-    private UserRepository repo;
+    public UserService(UserRepository userRepository,
-
+                       PasswordEncoder passwordEncoder,
-    private CommunityService communityService;
+                       ValidatorUtil validatorUtil) {
-    private MusicService musicService;
+        this.userRepository = userRepository;
-
+        this.passwordEncoder = passwordEncoder;
-    public UserService(UserRepository repo, MusicService musicService, CommunityService communityService) {
+        this.validatorUtil = validatorUtil;
-        this.repo = repo;
-        this.musicService = musicService;
-        this.communityService = communityService;
     }
 
-    @Transactional
+    public Page<User> findAllPages(int page, int size) {
-    public UserModel addUser(String name, String city) {
+        return userRepository.findAll(PageRequest.of(page - 1, size, Sort.by("id").ascending()));
-        if (!StringUtils.hasText(name)) {
-            throw new IllegalArgumentException("User name is null or empty");
-        }
-        UserModel user = new UserModel(name, city);
-        return repo.save(user);
-    }
-    @Transactional
-    public UserModel addUser(String name, String city, List<String> musics, List<String> communities) {
-
-        if (!StringUtils.hasText(name)) {
-            throw new IllegalArgumentException("Name is null or empty");
-        }
-
-        UserModel user = new UserModel(name, city);
-        UserModel result = repo.save(user);
-
-        updateMusics(result.getId(), musics);
-        return updateCommunities(user.getId(), communities);
     }
 
-    @Transactional
+    public User findByLogin(String login) {
-    public UserModel addMusic(Long userId, Long musicId) {
+        return userRepository.findOneByLoginIgnoreCase(login);
-        final Optional<UserModel> userOpt= repo.findById(userId);
-
-        if (userOpt.isEmpty()) {
-            throw new EntityNotFoundException(String.format("User with id [%s] is not found", musicId));
-        }
-
-        UserModel user = userOpt.get();
-
-        final Music music = musicService.findMusic(musicId);
-        if (music == null) {
-            throw new EntityNotFoundException(String.format("Music with id [%s] is not found", musicId));
-        }
-
-        user.addMusic(music);
-        return repo.save(user);
-    }
-    @Transactional
-    public UserModel addCommunity(Long userId, Long communityId) {
-        final Optional<UserModel> userOpt = repo.findById(userId);
-
-        if (userOpt.isEmpty()) {
-            throw new EntityNotFoundException(String.format("User with id [%s] is not found", userId));
-        }
-
-        UserModel user = userOpt.get();
-
-        final Community community = communityService.findCommunity(communityId);
-        if (community == null) {
-            throw new EntityNotFoundException(String.format("Community with id [%s] is not found", communityId));
-        }
-
-        user.addCommunity(community);
-        return repo.save(user);
     }
 
-    @Transactional(readOnly = true)
+    public User createUser(String login, String password, String passwordConfirm) {
-    public UserModel findUser(Long id) {
+        return createUser(login, password, passwordConfirm, UserRole.USER);
-
-        final Optional<UserModel> user = repo.findById(id);
-        if (user.isEmpty()) {
-            throw new EntityNotFoundException(String.format("UserModel with id [%s] is not found", id));
-        }
-        return user.get();
     }
 
-//    @Transactional(readOnly = true)
+    public User createUser(String login, String password, String passwordConfirm, UserRole role) {
-//    public List<UserModel> findUserByCity(String city){
+        if (findByLogin(login) != null) {
-//        Query query = repo.createQuery("select u from UserModel u where u.city = :city",
+            throw new ValidationException(String.format("User '%s' already exists", login));
-//                UserModel.class).setParameter("city", city);
+        }
-//        List<UserModel>  result = query.getResultList();
+        final User user = new User(login, passwordEncoder.encode(password), role);
-//       return result;
+        validatorUtil.validate(user);
-//    }
+        if (!Objects.equals(password, passwordConfirm)) {
-    @Transactional(readOnly = true)
+            throw new ValidationException("Passwords not equals");
-    public List<UserModel> findUserByCity(String city){
+        }
-        List<UserModel>  result = repo.findByCity(city);
+        return userRepository.save(user);
-       return result;
     }
 
-    @Transactional(readOnly = true)
+    @Override
-    public List<UserModel> findAllUsers() {
+    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
-        return repo.findAll();
+        final User userEntity = findByLogin(username);
+        if (userEntity == null) {
+            throw new UsernameNotFoundException(username);
+        }
+        return new org.springframework.security.core.userdetails.User(
+                userEntity.getLogin(), userEntity.getPassword(), Collections.singleton(userEntity.getRole()));
     }
-
-    @Transactional
-    public UserModel updateUser(Long id, String name) {
-
-        if (!StringUtils.hasText(name)) {
-            throw new IllegalArgumentException("User name is null or empty");
-        }
-        final Optional<UserModel> currentUserOpt = repo.findById(id);
-
-        if(currentUserOpt.isEmpty()) {
-            return null;
-        }
-
-        final UserModel currentUser = currentUserOpt.get();
-
-        currentUser.setName(name);
-        return repo.save(currentUser);
-    }
-    //update community, musics
-    @Transactional
-    public UserModel updateUser(Long id, String name,String city, List<String> musics, List<String> Communities) {
-        if (!StringUtils.hasText(name)) {
-            throw new IllegalArgumentException("User name is null or empty");
-        }
-        final Optional<UserModel> currentUserOpt = repo.findById(id);
-
-        if(currentUserOpt.isEmpty()) {
-            return null;
-        }
-
-        final UserModel currentUser = currentUserOpt.get();
-
-        currentUser.setName(name);
-        currentUser.setCity(city);
-        repo.save(currentUser);
-
-        updateMusics(id, musics);
-        return updateCommunities(id, Communities);
-    }
-    
-    @Transactional
-    public UserModel updateCommunities(Long userId , List<String> communities) {
-        final Optional<UserModel> userOpt = repo.findById(userId);
-
-        if (userOpt.isEmpty()) {
-            throw new EntityNotFoundException(String.format("UserModel with id [%s] is not found", userId));
-        }
-
-        UserModel user = userOpt.get();
-
-        user.deleteCommunities();
-
-        for(String c : communities) {
-            Community community = communityService.findByName(c);
-            user.addCommunity(community);
-        }
-        return repo.save(user);
-    }
-    @Transactional
-    public UserModel updateMusics(Long userId , List<String> musics) {
-        final Optional<UserModel> userOpt = repo.findById(userId);
-
-        if (userOpt.isEmpty()) {
-            throw new EntityNotFoundException(String.format("Music with id [%s] is not found", userId));
-        }
-
-        UserModel user = userOpt.get();
-
-        user.deleteMusics();
-
-        for(String m : musics) {
-            Music music = musicService.findByName(m);
-            user.addMusic(music);
-        }
-        return repo.save(user);
-    }
-
-
-    @Transactional
-    public UserModel deleteUser(Long id) {
-
-        final Optional<UserModel> currentUser = repo.findById(id);
-        if(currentUser.isEmpty()) {
-            return null;
-        }
-
-        repo.deleteById(id);
-        return currentUser.get();
-    }
-
-    @Transactional
-    public void deleteAllUsers() {
-        repo.deleteAll();
-    }
-
-
 }

src/main/java/ru/ulstu/is/sbapp/socialNetwork/util/error/AdviceController.java

@@ -0,0 +1,37 @@
+package ru.ulstu.is.sbapp.socialNetwork.util.error;
+
+import org.springframework.context.support.DefaultMessageSourceResolvable;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestController;
+import ru.ulstu.is.sbapp.socialNetwork.util.validation.ValidationException;
+
+import java.util.stream.Collectors;
+
+@ControllerAdvice(annotations = RestController.class)
+public class AdviceController {
+    @ExceptionHandler({
+            ValidationException.class
+    })
+    public ResponseEntity<Object> handleException(Throwable e) {
+        return new ResponseEntity<>(e.getMessage(), HttpStatus.BAD_REQUEST);
+    }
+
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    public ResponseEntity<Object> handleBindException(MethodArgumentNotValidException e) {
+        final ValidationException validationException = new ValidationException(
+                e.getBindingResult().getAllErrors().stream()
+                        .map(DefaultMessageSourceResolvable::getDefaultMessage)
+                        .collect(Collectors.toSet()));
+        return handleException(validationException);
+    }
+
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<Object> handleUnknownException(Throwable e) {
+        e.printStackTrace();
+        return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/util/validation/ValidationException.java

@@ -0,0 +1,13 @@
+package ru.ulstu.is.sbapp.socialNetwork.util.validation;
+
+import java.util.Set;
+
+public class ValidationException extends RuntimeException {
+    public <T> ValidationException(Set<String> errors) {
+        super(String.join("\n", errors));
+    }
+
+    public <T> ValidationException(String error) {
+        super(error);
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/util/validation/ValidatorUtil.java

@@ -0,0 +1,27 @@
+package ru.ulstu.is.sbapp.socialNetwork.util.validation;
+
+import org.springframework.stereotype.Component;
+
+import javax.validation.ConstraintViolation;
+import javax.validation.Validation;
+import javax.validation.Validator;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+@Component
+public class ValidatorUtil {
+    private final Validator validator;
+
+    public ValidatorUtil() {
+        this.validator = Validation.buildDefaultValidatorFactory().getValidator();
+    }
+
+    public <T> void validate(T object) {
+        final Set<ConstraintViolation<T>> errors = validator.validate(object);
+        if (!errors.isEmpty()) {
+            throw new ValidationException(errors.stream()
+                    .map(ConstraintViolation::getMessage)
+                    .collect(Collectors.toSet()));
+        }
+    }
+}

src/main/resources/templates/login.html

@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html lang="en"
+      xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout"
+      layout:decorate="~{default}" xmlns:th="http://www.w3.org/1999/xhtml">
+<body>
+<div class="container" layout:fragment="content">
+    <div th:if="${param.error}" class="alert alert-danger margin-bottom">
+        Пользователь не найден или пароль указан не верно
+    </div>
+    <div th:if="${param.logout}" class="alert alert-success margin-bottom">
+        Выход успешно произведен
+    </div>
+    <div th:if="${param.created}" class="alert alert-success margin-bottom">
+        Пользователь '<span th:text="${param.created}"></span>' успешно создан
+    </div>
+    <form th:action="@{/login}" method="post" class="container-padding">
+        <div class="mb-3">
+            <input type="text" name="username" id="username" class="form-control"
+                   placeholder="Логин" required="true" autofocus="true"/>
+        </div>
+        <div class="mb-3">
+            <input type="password" name="password" id="password" class="form-control"
+                   placeholder="Пароль" required="true"/>
+        </div>
+        <button type="submit" class="btn btn-success button-fixed">Войти</button>
+        <a class="btn btn-primary button-fixed" href="/signup">Регистрация</a>
+    </form>
+</div>
+</body>
+</html>

src/main/resources/templates/signup.html

@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html lang="en"
+      xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout"
+      layout:decorate="~{default}">
+<body>
+<div class="container container-padding" layout:fragment="content">
+    <div th:if="${errors}" th:text="${errors}" class="margin-bottom alert alert-danger"></div>
+    <form action="#" th:action="@{/signup}" th:object="${userDto}" method="post">
+        <div class="mb-3">
+            <input type="text" class="form-control" th:field="${userDto.login}"
+                   placeholder="Логин" required="true" autofocus="true" maxlength="64"/>
+        </div>
+        <div class="mb-3">
+            <input type="password" class="form-control" th:field="${userDto.password}"
+                   placeholder="Пароль" required="true" minlength="6" maxlength="64"/>
+        </div>
+        <div class="mb-3">
+            <input type="password" class="form-control" th:field="${userDto.passwordConfirm}"
+                   placeholder="Пароль (подтверждение)" required="true" minlength="6" maxlength="64"/>
+        </div>
+        <div class="mb-3">
+            <button type="submit" class="btn btn-success button-fixed">Создать</button>
+            <a class="btn btn-primary button-fixed" href="/login">Назад</a>
+        </div>
+    </form>
+</div>
+</body>
+</html>

src/main/resources/templates/users.html

@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html lang="en"
+      xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout"
+      layout:decorate="~{default}" xmlns:th="http://www.w3.org/1999/xhtml">
+<body>
+<div class="container" layout:fragment="content">
+    <div class="table-responsive">
+        <table class="table">
+            <thead>
+            <tr>
+                <th scope="col">#</th>
+                <th scope="col">ID</th>
+                <th scope="col">Логин</th>
+                <th scope="col">Роль</th>
+            </tr>
+            </thead>
+            <tbody>
+            <tr th:each="user, iterator: ${users}">
+                <th scope="row" th:text="${iterator.index} + 1"></th>
+                <td th:text="${user.id}"></td>
+                <td th:text="${user.login}" style="width: 60%"></td>
+                <td th:text="${user.role}" style="width: 20%"></td>
+            </tr>
+            </tbody>
+        </table>
+    </div>
+    <div th:if="${totalPages > 0}" class="pagination">
+		<span style="float: left; padding: 5px 5px;">Страницы:</span>
+		<a th:each="page : ${pages}"
+			th:href="@{/users(page=${page}, size=${users.size})}"
+			th:text="${page}"
+			th:class="${page == users.number + 1} ? active">
+		</a>
+	</div>
+</div>
+</body>
+</html>

src/test/java/ru/ulstu/is/sbapp/JpaCommunityTest.java

@@ -7,10 +7,9 @@ import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import ru.ulstu.is.sbapp.socialNetwork.models.Community;
-import ru.ulstu.is.sbapp.socialNetwork.models.Music;
 import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
 import ru.ulstu.is.sbapp.socialNetwork.services.CommunityService;
-import ru.ulstu.is.sbapp.socialNetwork.services.UserService;
+import ru.ulstu.is.sbapp.socialNetwork.services.MyUserService;
 
 import javax.persistence.EntityNotFoundException;
 import java.util.List;
@@ -19,7 +18,7 @@ import java.util.List;
 public class JpaCommunityTest {
     private static final Logger log = LoggerFactory.getLogger(JpaUserTest.class);
     @Autowired
-    UserService userService;
+    MyUserService userService;
 
     @Autowired
     CommunityService communityService;

src/test/java/ru/ulstu/is/sbapp/JpaMusicTest.java

@@ -8,7 +8,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import ru.ulstu.is.sbapp.socialNetwork.models.Music;
 import ru.ulstu.is.sbapp.socialNetwork.services.MusicService;
-import ru.ulstu.is.sbapp.socialNetwork.services.UserService;
+import ru.ulstu.is.sbapp.socialNetwork.services.MyUserService;
 
 import javax.persistence.EntityNotFoundException;
 import java.util.List;
@@ -17,7 +17,7 @@ import java.util.List;
 public class JpaMusicTest {
     private static final Logger log = LoggerFactory.getLogger(JpaUserTest.class);
     @Autowired
-    UserService userService;
+    MyUserService userService;
 
     @Autowired
     MusicService musicService;

src/test/java/ru/ulstu/is/sbapp/JpaUserTest.java

@@ -11,7 +11,7 @@ import ru.ulstu.is.sbapp.socialNetwork.models.Music;
 import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
 import ru.ulstu.is.sbapp.socialNetwork.services.CommunityService;
 import ru.ulstu.is.sbapp.socialNetwork.services.MusicService;
-import ru.ulstu.is.sbapp.socialNetwork.services.UserService;
+import ru.ulstu.is.sbapp.socialNetwork.services.MyUserService;
 
 import javax.persistence.EntityNotFoundException;
 import java.util.List;
@@ -20,7 +20,7 @@ import java.util.List;
 public class JpaUserTest {
     private static final Logger log = LoggerFactory.getLogger(JpaUserTest.class);
     @Autowired
-    UserService userService;
+    MyUserService userService;
 
     @Autowired
     MusicService musicService;