From 3cb703f4a0027730ce13505941c8bbdec2029ec8 Mon Sep 17 00:00:00 2001
From: etc404 <etc404@protonmail.com>
Date: Thu, 5 Mar 2026 19:28:35 -0700
Subject: [PATCH] Database-sourced authentication functional.

---
 .../example/demo/config/SecurityConfig.java   | 24 -----------------
 .../java/com/example/demo/entity/User.java    | 26 +++++++++++++++----
 .../com/example/demo/repository/UserRepo.java |  4 +++
 .../service/CustomUserDetailsService.java     | 23 ++++++++++++++++
 4 files changed, 48 insertions(+), 29 deletions(-)
 create mode 100644 demo/src/main/java/com/example/demo/service/CustomUserDetailsService.java

diff --git a/demo/src/main/java/com/example/demo/config/SecurityConfig.java b/demo/src/main/java/com/example/demo/config/SecurityConfig.java
index 4df7691..3d17139 100644
--- a/demo/src/main/java/com/example/demo/config/SecurityConfig.java
+++ b/demo/src/main/java/com/example/demo/config/SecurityConfig.java
@@ -2,37 +2,13 @@ package com.example.demo.config;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.security.config.annotation.web.builders.HttpSecurity;
-import org.springframework.security.core.userdetails.User;
-import org.springframework.security.core.userdetails.UserDetails;
-import org.springframework.security.core.userdetails.UserDetailsService;
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.security.crypto.password.PasswordEncoder;
-import org.springframework.security.provisioning.InMemoryUserDetailsManager;
-import org.springframework.security.web.SecurityFilterChain;
 
 @Configuration
 public class SecurityConfig {
-    @Bean
-    public UserDetailsService userDetailsService() {
-        UserDetails user = User.builder()
-                .username("admin")
-                .password("$2a$12$JWvSOzs7OeY/WBBrFXfjBuvJ5nzk9ivP4FYZeVN5fYNC8uT9Vxs7W")
-                .build();
-        return new InMemoryUserDetailsManager(user);
-    }
-
     @Bean
     public PasswordEncoder passwordEncoder() {
         return new BCryptPasswordEncoder();
     }
-
-//    @Bean
-//    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
-//        http.csrf(csrf -> csrf.disable())
-//            .authorizeHttpRequests(auth -> auth
-//                .anyRequest().permitAll()
-//            );
-//        return http.build();
-//    }
 }
\ No newline at end of file
diff --git a/demo/src/main/java/com/example/demo/entity/User.java b/demo/src/main/java/com/example/demo/entity/User.java
index 7d2b671..aef2380 100644
--- a/demo/src/main/java/com/example/demo/entity/User.java
+++ b/demo/src/main/java/com/example/demo/entity/User.java
@@ -12,13 +12,18 @@ import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.CascadeType;
 import jakarta.persistence.Column;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.userdetails.UserDetails;
+
 import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.Collection;
 import java.util.HashSet;
 import java.util.Set;
 
 @Entity
 @Table(name = "users")
-public class User {
+public class User implements UserDetails {
 
 	@Id
 	@GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -47,6 +52,21 @@ public class User {
 			@JoinColumn(name = "recipeId") })
 	private Set<Recipe> FavRecipes = new HashSet<>();
 
+	@Override
+	public Collection<? extends GrantedAuthority> getAuthorities() {
+		return new ArrayList<>();
+	}
+
+	@Override
+	public String getPassword() {
+		return hashedpassword;
+	}
+
+	@Override
+	public String getUsername() {
+		return username;
+	}
+
 	public User() {
 	}
 
@@ -66,10 +86,6 @@ public class User {
 		this.id = id;
 	}
 
-	public String getUsername() {
-		return username;
-	}
-
 	public void setUsername(String username) {
 		this.username = username;
 	}
diff --git a/demo/src/main/java/com/example/demo/repository/UserRepo.java b/demo/src/main/java/com/example/demo/repository/UserRepo.java
index 7dc9f3e..b750838 100644
--- a/demo/src/main/java/com/example/demo/repository/UserRepo.java
+++ b/demo/src/main/java/com/example/demo/repository/UserRepo.java
@@ -4,6 +4,10 @@ import org.springframework.data.jpa.repository.JpaRepository;
 
 import com.example.demo.entity.User;
 
+import java.util.Optional;
+
 public interface UserRepo extends JpaRepository<User, Integer> {
 
+    Optional<User> findByUsername(String username);
+
 }
\ No newline at end of file
diff --git a/demo/src/main/java/com/example/demo/service/CustomUserDetailsService.java b/demo/src/main/java/com/example/demo/service/CustomUserDetailsService.java
new file mode 100644
index 0000000..e527f07
--- /dev/null
+++ b/demo/src/main/java/com/example/demo/service/CustomUserDetailsService.java
@@ -0,0 +1,23 @@
+package com.example.demo.service;
+
+import com.example.demo.repository.UserRepo;
+import org.jspecify.annotations.NonNull;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.stereotype.Service;
+
+@Service
+public class CustomUserDetailsService implements UserDetailsService {
+
+    private final UserRepo userRepo;
+
+    public CustomUserDetailsService(UserRepo userRepo) {
+        this.userRepo = userRepo;
+    }
+
+    @Override
+    public UserDetails loadUserByUsername(@NonNull String username) throws UsernameNotFoundException {
+        return userRepo.findByUsername(username).orElseThrow(() -> new UsernameNotFoundException("User not found"));
+    }
+}