implement users resource and email based auth

src/main/java/wtf/beatrice/releasehive/Main.java

@@ -36,8 +36,7 @@ public class Main {
         transaction.commit();
 
         users.forEach(user -> LOGGER.info("ID: {}, Name: {}", user.getUuid(), user.getUsername()));
-
-    }
+}
 
     private static final Thread shutdownHook = new Thread(() -> {
         HibernateManager.shutdown();

src/main/java/wtf/beatrice/releasehive/config/ApplicationConfiguration.java

@@ -24,7 +24,7 @@ public class ApplicationConfiguration
 
     @Bean
     UserDetailsService userDetailsService() {
-        return username -> userRepository.findByEmail(username)
+        return email -> userRepository.findByEmail(email)
                 .orElseThrow(() -> new UsernameNotFoundException("User not found"));
     }
 

src/main/java/wtf/beatrice/releasehive/config/JWTAuthenticationFilter.java

@@ -9,13 +9,13 @@ import org.springframework.lang.NonNull;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.context.SecurityContextHolder;
-import org.springframework.security.core.userdetails.UserDetails;
-import org.springframework.security.core.userdetails.UserDetailsService;
 import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
 import org.springframework.stereotype.Component;
 import org.springframework.web.filter.OncePerRequestFilter;
 import org.springframework.web.servlet.HandlerExceptionResolver;
+import wtf.beatrice.releasehive.model.User;
 import wtf.beatrice.releasehive.service.JWTService;
+import wtf.beatrice.releasehive.service.UserDetailsExtendedService;
 
 import java.io.IOException;
 
@@ -25,11 +25,11 @@ public class JWTAuthenticationFilter extends OncePerRequestFilter
     private final HandlerExceptionResolver handlerExceptionResolver;
 
     private final JWTService jwtService;
-    private final UserDetailsService userDetailsService;
+    private final UserDetailsExtendedService userDetailsService;
 
     public JWTAuthenticationFilter(
             @Autowired JWTService jwtService,
-            @Autowired UserDetailsService userDetailsService,
+            @Autowired UserDetailsExtendedService userDetailsService,
             @Autowired HandlerExceptionResolver handlerExceptionResolver) {
         this.jwtService = jwtService;
         this.userDetailsService = userDetailsService;
@@ -52,12 +52,12 @@ public class JWTAuthenticationFilter extends OncePerRequestFilter
 
         try {
             final String jwt = authHeader.substring(7);
-            final String userEmail = jwtService.extractUsername(jwt);
+            final String email = jwtService.extractEmail(jwt);
 
             Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
 
-            if (userEmail != null && authentication == null) {
-                UserDetails userDetails = this.userDetailsService.loadUserByUsername(userEmail);
+            if (email != null && authentication == null) {
+                User userDetails = this.userDetailsService.loadUserByEmail(email);
 
                 if (jwtService.isTokenValid(jwt, userDetails)) {
                     UsernamePasswordAuthenticationToken authToken = new UsernamePasswordAuthenticationToken(

src/main/java/wtf/beatrice/releasehive/repository/UserRepository.java

@@ -11,4 +11,6 @@ import java.util.UUID;
 public interface UserRepository extends JpaRepository<User, UUID> {
 
     Optional<User> findByEmail(String email);
+
+    Optional<User> findByUsername(String username);
 }

src/main/java/wtf/beatrice/releasehive/resource/UserResource.java

@@ -0,0 +1,46 @@
+package wtf.beatrice.releasehive.resource;
+
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import wtf.beatrice.releasehive.model.User;
+import wtf.beatrice.releasehive.service.UserService;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/api/v1/users")
+public class UserResource
+{
+    private final UserService userService;
+
+    public UserResource(@Autowired UserService userService)
+    {
+        this.userService = userService;
+    }
+
+    @GetMapping(
+            value = "/me",
+            produces = "application/json")
+    public ResponseEntity<User> authenticatedUser() {
+
+        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
+        User currentUser = (User) authentication.getPrincipal();
+
+        return ResponseEntity.ok(currentUser);
+    }
+
+    @GetMapping(
+            value = "/all",
+            produces = "application/json")
+    public ResponseEntity<List<User>> getAllUsers() {
+        List<User> users = userService.getAllUsers();
+        return ResponseEntity.ok(users);
+    }
+
+}

src/main/java/wtf/beatrice/releasehive/service/JWTService.java

@@ -6,8 +6,8 @@ import io.jsonwebtoken.SignatureAlgorithm;
 import io.jsonwebtoken.io.Decoders;
 import io.jsonwebtoken.security.Keys;
 import org.springframework.beans.factory.annotation.Value;
-import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.stereotype.Service;
+import wtf.beatrice.releasehive.model.User;
 
 import java.security.Key;
 import java.util.Date;
@@ -24,7 +24,7 @@ public class JWTService
     @Value("${security.jwt.expiration-time}")
     private long jwtExpiration;
 
-    public String extractUsername(String token) {
+    public String extractEmail(String token) {
         return extractClaim(token, Claims::getSubject);
     }
 
@@ -33,11 +33,11 @@ public class JWTService
         return claimsResolver.apply(claims);
     }
 
-    public String generateToken(UserDetails userDetails) {
+    public String generateToken(User userDetails) {
         return generateToken(new HashMap<>(), userDetails);
     }
 
-    public String generateToken(Map<String, Object> extraClaims, UserDetails userDetails) {
+    public String generateToken(Map<String, Object> extraClaims, User userDetails) {
         return buildToken(extraClaims, userDetails, jwtExpiration);
     }
 
@@ -47,22 +47,22 @@ public class JWTService
 
     private String buildToken(
             Map<String, Object> extraClaims,
-            UserDetails userDetails,
+            User userDetails,
             long expiration
     ) {
         return Jwts
                 .builder()
                 .setClaims(extraClaims)
-                .setSubject(userDetails.getUsername())
+                .setSubject(userDetails.getEmail())
                 .setIssuedAt(new Date(System.currentTimeMillis()))
                 .setExpiration(new Date(System.currentTimeMillis() + expiration))
                 .signWith(getSignInKey(), SignatureAlgorithm.HS256)
                 .compact();
     }
 
-    public boolean isTokenValid(String token, UserDetails userDetails) {
-        final String username = extractUsername(token);
-        return (username.equals(userDetails.getUsername())) && !isTokenExpired(token);
+    public boolean isTokenValid(String token, User userDetails) {
+        final String email = extractEmail(token);
+        return (email.equals(userDetails.getEmail())) && !isTokenExpired(token);
     }
 
     private boolean isTokenExpired(String token) {

src/main/java/wtf/beatrice/releasehive/service/UserDetailsExtendedService.java

@@ -0,0 +1,25 @@
+package wtf.beatrice.releasehive.service;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.stereotype.Service;
+import wtf.beatrice.releasehive.model.User;
+import wtf.beatrice.releasehive.repository.UserRepository;
+
+@Service
+public class UserDetailsExtendedService {
+
+    private final UserRepository userRepository;
+
+    public UserDetailsExtendedService(@Autowired UserRepository userRepository) {
+        this.userRepository = userRepository;
+    }
+
+    public User loadUserByUsername(String username) throws UsernameNotFoundException {
+        return userRepository.findByUsername(username).orElseThrow(() -> new UsernameNotFoundException(username));
+    }
+
+    public User loadUserByEmail(String email) throws UsernameNotFoundException {
+        return userRepository.findByEmail(email).orElseThrow(() -> new UsernameNotFoundException(email));
+    }
+}

src/main/java/wtf/beatrice/releasehive/service/UserService.java

@@ -0,0 +1,23 @@
+package wtf.beatrice.releasehive.service;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import wtf.beatrice.releasehive.model.User;
+import wtf.beatrice.releasehive.repository.UserRepository;
+
+import java.util.List;
+
+@Service
+public class UserService
+{
+    private final UserRepository userRepository;
+
+    public UserService(@Autowired UserRepository userRepository) {
+        this.userRepository = userRepository;
+    }
+
+    public List<User> getAllUsers() {
+        return userRepository.findAll();
+    }
+
+}