1 files changed, 50 insertions, 0 deletions
diff --git a/src/main/java/com/mavlushechka/studentdatabase/service/CustomUserDetailsService.java b/src/main/java/com/mavlushechka/studentdatabase/service/CustomUserDetailsService.java
new file mode 100755
index 0000000..b238c98
--- /dev/null
+++ b/src/main/java/com/mavlushechka/studentdatabase/service/CustomUserDetailsService.java
@@ -0,0 +1,50 @@
+package com.mavlushechka.studentdatabase.service;
+
+import com.mavlushechka.studentdatabase.domain.Role;
+import com.mavlushechka.studentdatabase.domain.User;
+import com.mavlushechka.studentdatabase.repository.UserRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+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.bcrypt.BCryptPasswordEncoder;
+import org.springframework.stereotype.Service;
+
+import java.util.*;
+
+@Service
+public class CustomUserDetailsService implements UserDetailsService {
+    @Autowired
+    private UserRepository userRepository;
+    @Autowired
+    private BCryptPasswordEncoder bCryptPasswordEncoder;
+
+    public void saveUser(User user) {
+        user.setPassword(bCryptPasswordEncoder.encode(user.getPassword()));
+        userRepository.save(user);
+    }
+
+    @Override
+    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
+        User user = userRepository.findByUsername(username);
+
+        if (user != null) {
+            List<GrantedAuthority> authorities = getUserAuthority(user.getRoles());
+            return buildUserForAuthentication(user, authorities);
+        } else {
+            throw new UsernameNotFoundException("Username not found");
+        }
+    }
+
+    private List<GrantedAuthority> getUserAuthority(Set<Role> userRoles) {
+        Set<GrantedAuthority> roles = new HashSet<>();
+        userRoles.forEach((role) -> roles.add(new SimpleGrantedAuthority(role.getRole())));
+        return new ArrayList<>(roles);
+    }
+
+    private UserDetails buildUserForAuthentication(User user, List<GrantedAuthority> authorities) {
+        return new org.springframework.security.core.userdetails.User(user.getUsername(), user.getPassword(), authorities);
+    }
+}