Implemented Jwt and Oauth2.0 Authentication

pom.xml

@@ -1,30 +1,34 @@
 <?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"
+<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
 		<version>3.3.3</version>
-		<relativePath/> <!-- lookup parent from repository -->
+		<relativePath /> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com</groupId>
 	<artifactId>libraryman-api</artifactId>
 	<version>0.0.1-SNAPSHOT</version>
 	<name>libraryman-api</name>
-	<description>Revolutionize book management with LibraryMan! Easily track stock, borrowers, and due dates, streamlining operations for schools, companies, and libraries worldwide, ensuring efficient and organized book lending.</description>
-	<url/>
+	<description>Revolutionize book management with LibraryMan! Easily track
+		stock, borrowers, and due dates, streamlining operations for schools,
+		companies, and libraries worldwide, ensuring efficient and organized
+		book lending.</description>
+	<url />
 	<licenses>
-		<license/>
+		<license />
 	</licenses>
 	<developers>
-		<developer/>
+		<developer />
 	</developers>
 	<scm>
-		<connection/>
-		<developerConnection/>
-		<tag/>
-		<url/>
+		<connection />
+		<developerConnection />
+		<tag />
+		<url />
 	</scm>
 	<properties>
 		<java.version>17</java.version>
@@ -50,7 +54,23 @@
 			<scope>runtime</scope>
 			<optional>true</optional>
 		</dependency>
-
+		<dependency>
+			<groupId>io.jsonwebtoken</groupId>
+			<artifactId>jjwt-api</artifactId>
+			<version>0.11.5</version>
+		</dependency>
+		<dependency>
+			<groupId>io.jsonwebtoken</groupId>
+			<artifactId>jjwt-impl</artifactId>
+			<version>0.11.5</version>
+			<scope>runtime</scope>
+		</dependency>
+		<dependency>
+			<groupId>io.jsonwebtoken</groupId>
+			<artifactId>jjwt-jackson</artifactId>
+			<version>0.11.5</version>
+			<scope>runtime</scope>
+		</dependency>
 
 		<dependency>
 			<groupId>com.mysql</groupId>
@@ -80,6 +100,11 @@
 			<artifactId>spring-security-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.security</groupId>
+			<artifactId>spring-security-oauth2-client</artifactId>
+
+		</dependency>
 
 	</dependencies>
 

src/main/java/com/libraryman_api/book/BookController.java

@@ -3,6 +3,7 @@
 import com.libraryman_api.exception.ResourceNotFoundException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
+import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
@@ -51,6 +52,7 @@ public ResponseEntity<Book> getBookById(@PathVariable int id) {
      * @return the added {@link Book} object.
      */
     @PostMapping
+    @PreAuthorize("hasRole('LIBRARIAN') or hasRole('ADMIN')")
     public Book addBook(@RequestBody Book book) {
         return bookService.addBook(book);
     }
@@ -63,6 +65,7 @@ public Book addBook(@RequestBody Book book) {
      * @return the updated {@link Book} object.
      */
     @PutMapping("/{id}")
+    @PreAuthorize("hasRole('LIBRARIAN') or hasRole('ADMIN')")
     public Book updateBook(@PathVariable int id, @RequestBody Book bookDetails) {
         return bookService.updateBook(id, bookDetails);
     }
@@ -73,6 +76,7 @@ public Book updateBook(@PathVariable int id, @RequestBody Book bookDetails) {
      * @param id the ID of the book to delete.
      */
     @DeleteMapping("/{id}")
+    @PreAuthorize("hasRole('LIBRARIAN') or hasRole('ADMIN')")
     public void deleteBook(@PathVariable int id) {
         bookService.deleteBook(id);
     }

src/main/java/com/libraryman_api/borrowing/BorrowingController.java

@@ -1,6 +1,8 @@
 package com.libraryman_api.borrowing;
 
 import com.libraryman_api.exception.ResourceNotFoundException;
+
+import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
@@ -31,6 +33,7 @@ public BorrowingController(BorrowingService borrowingService) {
      * @return a list of {@link Borrowings} objects representing all borrowings.
      */
     @GetMapping
+    @PreAuthorize("hasRole('LIBRARIAN') or hasRole('ADMIN')")
     public List<Borrowings> getAllBorrowings() {
         return borrowingService.getAllBorrowings();
     }
@@ -75,6 +78,7 @@ public String payFine(@PathVariable int id) {
      * @return a list of {@link Borrowings} objects representing the member's borrowings.
      */
     @GetMapping("member/{memberId}")
+    @PreAuthorize("hasRole('LIBRARIAN') or hasRole('ADMIN')")
     public List<Borrowings> getAllBorrowingsOfAMember(@PathVariable int memberId) {
         return borrowingService.getAllBorrowingsOfMember(memberId);
     }
@@ -87,6 +91,7 @@ public List<Borrowings> getAllBorrowingsOfAMember(@PathVariable int memberId) {
      * @throws ResourceNotFoundException if the borrowing record with the specified ID is not found.
      */
     @GetMapping("{borrowingId}")
+    @PreAuthorize("hasRole('LIBRARIAN') or hasRole('ADMIN')")
     public Borrowings getBorrowingById(@PathVariable int borrowingId) {
         return borrowingService.getBorrowingById(borrowingId)
                 .orElseThrow(() -> new ResourceNotFoundException("Borrowing not found"));

src/main/java/com/libraryman_api/member/MemberController.java

@@ -2,6 +2,7 @@
 
 import com.libraryman_api.exception.ResourceNotFoundException;
 import org.springframework.http.ResponseEntity;
+import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
@@ -31,6 +32,7 @@ public MemberController(MemberService memberService) {
      * @return a list of {@link Members} representing all members in the library
      */
     @GetMapping
+    @PreAuthorize("hasRole('LIBRARIAN') or hasRole('ADMIN')")
     public List<Members> getAllMembers() {
         return memberService.getAllMembers();
     }
@@ -43,6 +45,7 @@ public List<Members> getAllMembers() {
      * @return a {@link ResponseEntity} containing the found {@link Members} object
      */
     @GetMapping("/{id}")
+    @PreAuthorize("hasRole('LIBRARIAN') or hasRole('ADMIN')")
     public ResponseEntity<Members> getMemberById(@PathVariable int id) {
         return memberService.getMemberById(id)
                 .map(ResponseEntity::ok)
@@ -80,6 +83,7 @@ public Members updateMember(@PathVariable int id, @RequestBody Members memberDet
      * @param id the ID of the member to delete
      */
     @DeleteMapping("/{id}")
+    @PreAuthorize("hasRole('LIBRARIAN') or hasRole('ADMIN')")
     public void deleteMember(@PathVariable int id) {
         memberService.deleteMember(id);
     }

src/main/java/com/libraryman_api/member/MemberRepository.java

@@ -10,6 +10,7 @@ public interface MemberRepository extends JpaRepository<Members, Integer> {
 
     Optional<Members> findByMemberId(int memberId);
 
+    Optional<Members> findByUsername(String username);
 
 /**
  * SELECT SUM(amount) AS totalFines

src/main/java/com/libraryman_api/member/Members.java

@@ -2,11 +2,17 @@
 
 import jakarta.persistence.*;
 
+import java.util.Collection;
+import java.util.Collections;
 import java.util.Date;
 
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+import org.springframework.security.core.userdetails.UserDetails;
+
 
 @Entity
-public class Members {
+public class Members implements UserDetails{
 
     @Id
     @GeneratedValue(strategy = GenerationType.SEQUENCE,
@@ -20,6 +26,9 @@ public class Members {
     @Column(nullable = false)
     private String name;
 
+    @Column(name = "username")
+    private String username;
+
     @Column(unique = true, nullable = false)
     private String email;
 
@@ -33,6 +42,7 @@ public class Members {
     @Column(name = "membership_date")
     private Date membershipDate;
 
+
 
 
     public Members() {
@@ -89,4 +99,19 @@ public Date getMembershipDate() {
     public void setMembershipDate(Date membershipDate) {
         this.membershipDate = membershipDate;
     }
+
+	public String getUsername() {
+		return username;
+	}
+
+	public void setUsername(String username) {
+		this.username = username;
+	}
+
+	@Override
+	public Collection<? extends GrantedAuthority> getAuthorities() {
+		// TODO Auto-generated method stub
+		return Collections.singletonList(new SimpleGrantedAuthority("ROLE_"+role.name()));
+	}
+
 }

src/main/java/com/libraryman_api/security/PasswordEncoder.java → src/main/java/com/libraryman_api/security/config/PasswordEncoder.java

@@ -1,4 +1,4 @@
-package com.libraryman_api.security;
+package com.libraryman_api.security.config;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;

src/main/java/com/libraryman_api/security/config/WebConfiguration.java

@@ -0,0 +1,87 @@
+package com.libraryman_api.security.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
+import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
+import org.springframework.security.web.SecurityFilterChain;
+import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
+import org.springframework.web.cors.CorsConfiguration;
+import org.springframework.web.cors.CorsConfigurationSource;
+import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
+import org.springframework.web.filter.CorsFilter;
+
+import com.libraryman_api.security.jwt.JwtAuthenticationFilter;
+
+import static org.springframework.security.config.Customizer.withDefaults;
+import static org.springframework.security.config.http.SessionCreationPolicy.STATELESS;
+
+@Configuration
+@EnableWebSecurity(debug = true) // Do not use (debug=true) in a production system! as this contain sensitive information.
+@EnableMethodSecurity(prePostEnabled = true)
+public class WebConfiguration {
+
+	private JwtAuthenticationFilter jwtFilter;
+
+	public WebConfiguration(JwtAuthenticationFilter jwtFilter) {
+		this.jwtFilter=jwtFilter;
+	}
+    @Bean
+    public SecurityFilterChain web(HttpSecurity http) throws Exception {
+        http
+                .csrf(AbstractHttpConfigurer::disable)
+                .authorizeHttpRequests((request) -> request
+                                // make sure it is in order to access the proper Url
+
+                                .requestMatchers("/api/signup").permitAll()
+                                .requestMatchers("/api/login").permitAll()
+                                .requestMatchers("/api/logout").permitAll()
+                                .anyRequest().authenticated()
+                )
+                .logout(logout->logout
+                		.deleteCookies("LibraryManCookie"))
+                .sessionManagement(session -> session.sessionCreationPolicy(STATELESS))
+                .formLogin(withDefaults());
+
+        http.addFilterBefore(jwtFilter, UsernamePasswordAuthenticationFilter.class)
+        .httpBasic(httpBasic -> {});
+
+        http.oauth2Login(withDefaults());
+        return http.build();
+    }
+
+    @Bean
+    public AuthenticationManager authenticationManager(AuthenticationConfiguration builder) throws Exception {
+        return builder.getAuthenticationManager();
+    }
+    @Bean
+    public CorsConfigurationSource corsConfigurationSource() {
+        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
+        CorsConfiguration corsConfiguration = new CorsConfiguration();
+        corsConfiguration.setAllowCredentials(true);
+        corsConfiguration.addAllowedOriginPattern("*");
+        corsConfiguration.addAllowedHeader("Authorization");
+        corsConfiguration.addAllowedHeader("Content-Type");
+        corsConfiguration.addAllowedHeader("Accept");
+        corsConfiguration.addAllowedMethod("POST");
+        corsConfiguration.addAllowedMethod("PUT");
+        corsConfiguration.addAllowedMethod("GET");
+        corsConfiguration.addAllowedMethod("DELETE");
+        corsConfiguration.addAllowedMethod("OPTIONS");
+        corsConfiguration.setMaxAge(3600L);
+
+        source.registerCorsConfiguration("/**", corsConfiguration);
+        return source;
+    }
+
+    @Bean
+    public CorsFilter corsFilter() {
+        return new CorsFilter(corsConfigurationSource());
+    }
+
+}