[feat] 6주차 과제 제출

second-seminar/second-seminar/.gitignore

@@ -35,3 +35,11 @@ out/
 
 ### VS Code ###
 .vscode/
+
+*.yml
+application-local.yml
+*.sql
+src/main/resources/application-local.yml
+src/main/resources/application.yml
+src/main/resources/application-dev.yml
+src/main/resources/data.sql

second-seminar/second-seminar/build.gradle

@@ -36,6 +36,18 @@ dependencies {
 	// security
 	implementation 'org.springframework.boot:spring-boot-starter-security'
 	testImplementation 'org.springframework.security:spring-security-test'
+
+	dependencies {
+		// AWS sdk
+		implementation("software.amazon.awssdk:bom:2.21.0")
+		implementation("software.amazon.awssdk:s3:2.21.0")
+	}
+
+	dependencies {
+		implementation group: 'io.jsonwebtoken', name: 'jjwt-api', version: '0.11.5'
+		implementation group: 'io.jsonwebtoken', name: 'jjwt-impl', version: '0.11.5'
+		implementation group: 'io.jsonwebtoken', name: 'jjwt-jackson', version: '0.11.5'
+	}
 }
 
 tasks.named('test') {

second-seminar/second-seminar/src/main/java/thirdseminar/thirdseminar/SecondSeminarApplication.java → second-seminar/second-seminar/src/main/java/secondSeminar/secondSeminar/SecondSeminarApplication.java

@@ -1,4 +1,4 @@
-package thirdseminar.thirdseminar;
+package secondSeminar.secondSeminar;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;

second-seminar/second-seminar/src/main/java/secondSeminar/secondSeminar/config/AwsConfig.java

@@ -0,0 +1,57 @@
+package secondSeminar.secondSeminar.config;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import software.amazon.awssdk.auth.credentials.SystemPropertyCredentialsProvider;
+import software.amazon.awssdk.regions.Region;
+import software.amazon.awssdk.services.s3.S3Client;
+import software.amazon.awssdk.services.s3.presigner.S3Presigner;
+
+@Configuration
+public class AwsConfig {
+
+    private static final String AWS_ACCESS_KEY_ID = "aws.accessKeyId";
+    private static final String AWS_SECRET_ACCESS_KEY = "aws.secretAccessKey";
+
+    private final String accessKey;
+    private final String secretKey;
+    private final String regionString;
+
+    public AwsConfig(@Value("${aws-property.access-key}") final String accessKey,
+                     @Value("${aws-property.secret-key}") final String secretKey,
+                     @Value("${aws-property.aws-region}") final String regionString) {
+        this.accessKey = accessKey;
+        this.secretKey = secretKey;
+        this.regionString = regionString;
+    }
+
+
+    @Bean
+    public SystemPropertyCredentialsProvider systemPropertyCredentialsProvider() {
+        System.setProperty(AWS_ACCESS_KEY_ID, accessKey);
+        System.setProperty(AWS_SECRET_ACCESS_KEY, secretKey);
+        return SystemPropertyCredentialsProvider.create();
+    }
+
+    @Bean
+    public Region getRegion() {
+        return Region.of(regionString);
+    }
+
+    @Bean
+    public S3Client getS3Client() {
+        return S3Client.builder()
+                .region(getRegion())
+                .credentialsProvider(systemPropertyCredentialsProvider())
+                .build();
+    }
+
+    @Bean
+    S3Presigner getS3Presigner() {
+        return S3Presigner.builder()
+                .region(getRegion())
+                .credentialsProvider(systemPropertyCredentialsProvider())
+                .build();
+    }
+}

second-seminar/second-seminar/src/main/java/secondSeminar/secondSeminar/config/BCryptPasswordConfig.java

@@ -0,0 +1,17 @@
+package secondSeminar.secondSeminar.config;
+
+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 BCryptPasswordConfig {
+
+    private static final int STRENGTH = 10;
+
+    @Bean
+    public PasswordEncoder bCryptPasswordEncoder() {
+        return new BCryptPasswordEncoder(STRENGTH);
+    }
+}

second-seminar/second-seminar/src/main/java/secondSeminar/secondSeminar/config/CustomAccessDeniedHandler.java

@@ -0,0 +1,21 @@
+package secondSeminar.secondSeminar.config;
+
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import org.springframework.security.access.AccessDeniedException;
+import org.springframework.security.web.access.AccessDeniedHandler;
+import org.springframework.stereotype.Component;
+
+@Component
+public class CustomAccessDeniedHandler implements AccessDeniedHandler {
+    @Override
+    public void handle(HttpServletRequest request, HttpServletResponse response, AccessDeniedException accessDeniedException) throws IOException, ServletException {
+        setResponse(response);
+    }
+
+    private void setResponse(HttpServletResponse response) {
+        response.setStatus(HttpServletResponse.SC_FORBIDDEN);
+    }
+}

second-seminar/second-seminar/src/main/java/secondSeminar/secondSeminar/config/CustomJwtAuthenticationEntryPoint.java

@@ -0,0 +1,20 @@
+package secondSeminar.secondSeminar.config;
+
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import org.springframework.security.core.AuthenticationException;
+import org.springframework.security.web.AuthenticationEntryPoint;
+import org.springframework.stereotype.Component;
+
+@Component
+public class CustomJwtAuthenticationEntryPoint implements AuthenticationEntryPoint {
+
+    @Override
+    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException)  {
+        setResponse(response);
+    }
+
+    private void setResponse(HttpServletResponse response) {
+        response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
+    }
+}

second-seminar/second-seminar/src/main/java/thirdseminar/thirdseminar/config/JpaAuditingConfig.java → second-seminar/second-seminar/src/main/java/secondSeminar/secondSeminar/config/JpaAuditingConfig.java

@@ -1,4 +1,4 @@
-package thirdseminar.thirdseminar.config;
+package secondSeminar.secondSeminar.config;
 
 import org.springframework.context.annotation.Configuration;
 import org.springframework.data.jpa.repository.config.EnableJpaAuditing;

second-seminar/second-seminar/src/main/java/secondSeminar/secondSeminar/config/JwtAuthenticationFilter.java

@@ -0,0 +1,56 @@
+package secondSeminar.secondSeminar.config;
+
+
+import static secondSeminar.secondSeminar.config.JwtValidationType.VALID_JWT;
+
+import io.micrometer.common.lang.NonNull;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
+import org.springframework.stereotype.Component;
+import org.springframework.util.StringUtils;
+import org.springframework.web.filter.OncePerRequestFilter;
+
+@Component
+@RequiredArgsConstructor
+public class JwtAuthenticationFilter extends OncePerRequestFilter {
+
+    private final JwtTokenProvider jwtTokenProvider;
+
+    @Override
+    protected void doFilterInternal(@NonNull HttpServletRequest request,
+                                    @NonNull HttpServletResponse response,
+                                    @NonNull FilterChain filterChain) throws ServletException, IOException {
+        try {
+            final String token = getJwtFromRequest(request);
+            if (jwtTokenProvider.validateToken(token) == VALID_JWT) {
+                Long memberId = jwtTokenProvider.getUserFromJwt(token);
+                // authentication 객체 생성 -> principal에 유저정보를 담는다.
+                UserAuthentication authentication = new UserAuthentication(memberId.toString(), null, null);
+                authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
+                SecurityContextHolder.getContext().setAuthentication(authentication);
+            }
+        } catch (Exception exception) {
+            try {
+                throw new Exception();
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+        }
+        // 다음 필터로 요청 전달
+        filterChain.doFilter(request, response);
+    }
+
+    private String getJwtFromRequest(HttpServletRequest request) {
+        String bearerToken = request.getHeader("Authorization");
+        if (StringUtils.hasText(bearerToken) && bearerToken.startsWith("Bearer ")) {
+            return bearerToken.substring("Bearer ".length());
+        }
+        return null;
+    }
+}

second-seminar/second-seminar/src/main/java/secondSeminar/secondSeminar/config/JwtTokenProvider.java

@@ -0,0 +1,84 @@
+package secondSeminar.secondSeminar.config;
+
+import io.jsonwebtoken.Claims;
+import io.jsonwebtoken.ExpiredJwtException;
+import io.jsonwebtoken.Header;
+import io.jsonwebtoken.Jwts;
+import io.jsonwebtoken.MalformedJwtException;
+import io.jsonwebtoken.UnsupportedJwtException;
+import io.jsonwebtoken.security.Keys;
+import jakarta.annotation.PostConstruct;
+import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.core.Authentication;
+import org.springframework.stereotype.Component;
+
+import javax.crypto.SecretKey;
+import java.nio.charset.StandardCharsets;
+import java.util.Base64;
+import java.util.Date;
+
+@Component
+@RequiredArgsConstructor
+public class JwtTokenProvider {
+
+    private static final String MEMBER_ID = "memberId";
+
+    @Value("${jwt.secret}")
+    private String JWT_SECRET;
+
+    @PostConstruct
+    protected void init() {
+        //base64 라이브러리에서 encodeToString을 이용해서 byte[] 형식을 String 형식으로 변환
+        JWT_SECRET = Base64.getEncoder().encodeToString(JWT_SECRET.getBytes(StandardCharsets.UTF_8));
+    }
+
+    public String generateToken(Authentication authentication, Long tokenExpirationTime) {
+        final Date now = new Date();
+        final Claims claims = Jwts.claims()
+                .setIssuedAt(now)
+                .setExpiration(new Date(now.getTime() + tokenExpirationTime));      // 만료 시간
+
+        claims.put(MEMBER_ID, authentication.getPrincipal());
+
+        return Jwts.builder()
+                .setHeaderParam(Header.TYPE, Header.JWT_TYPE) // Header
+                .setClaims(claims) // Claim
+                .signWith(getSigningKey()) // Signature
+                .compact();
+    }
+
+    private SecretKey getSigningKey() {
+        String encodedKey = Base64.getEncoder().encodeToString(JWT_SECRET.getBytes()); //SecretKey 통해 서명 생성
+        return Keys.hmacShaKeyFor(
+                encodedKey.getBytes());   //일반적으로 HMAC (Hash-based Message Authentication Code) 알고리즘 사용
+    }
+
+    public JwtValidationType validateToken(String token) {
+        try {
+            final Claims claims = getBody(token);
+            return JwtValidationType.VALID_JWT;
+        } catch (MalformedJwtException ex) {
+            return JwtValidationType.INVALID_JWT_TOKEN;
+        } catch (ExpiredJwtException ex) {
+            return JwtValidationType.EXPIRED_JWT_TOKEN;
+        } catch (UnsupportedJwtException ex) {
+            return JwtValidationType.UNSUPPORTED_JWT_TOKEN;
+        } catch (IllegalArgumentException ex) {
+            return JwtValidationType.EMPTY_JWT;
+        }
+    }
+
+    private Claims getBody(final String token) {
+        return Jwts.parserBuilder()
+                .setSigningKey(getSigningKey())
+                .build()
+                .parseClaimsJws(token)
+                .getBody();
+    }
+
+    public Long getUserFromJwt(String token) {
+        Claims claims = getBody(token);
+        return Long.valueOf(claims.get(MEMBER_ID).toString());
+    }
+}

second-seminar/second-seminar/src/main/java/secondSeminar/secondSeminar/config/JwtValidationType.java

@@ -0,0 +1,10 @@
+package secondSeminar.secondSeminar.config;
+
+public enum JwtValidationType {
+    VALID_JWT,              // 유효한 JWT
+    INVALID_JWT_SIGNATURE,      // 유효하지 않은 서명
+    INVALID_JWT_TOKEN,          // 유효하지 않은 토큰
+    EXPIRED_JWT_TOKEN,          // 만료된 토큰
+    UNSUPPORTED_JWT_TOKEN,      // 지원하지 않는 형식의 토큰
+    EMPTY_JWT                   // 빈 JWT
+}

second-seminar/second-seminar/src/main/java/secondSeminar/secondSeminar/config/SecurityConfig.java

@@ -0,0 +1,63 @@
+package secondSeminar.secondSeminar.config;
+
+import static org.springframework.security.config.http.SessionCreationPolicy.STATELESS;
+
+import jakarta.servlet.Filter;
+import lombok.RequiredArgsConstructor;
+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.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.web.SecurityFilterChain;
+import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+@EnableWebSecurity
+@RequiredArgsConstructor
+public class SecurityConfig {
+
+    private final JwtAuthenticationFilter jwtAuthenticationFilter;
+    private final CustomJwtAuthenticationEntryPoint customJwtAuthenticationEntryPoint;
+    private final CustomAccessDeniedHandler customAccessDeniedHandler;
+
+
+    private static final String[] AUTH_WHITELIST = {
+            "/sign-up",
+            "/sign-in"
+    };
+    @Bean
+    SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
+        return http
+                .csrf().disable()
+                .formLogin().disable()
+                .httpBasic().disable()
+                .sessionManagement()
+                .sessionCreationPolicy(STATELESS)
+                .and()
+                .exceptionHandling()
+                .authenticationEntryPoint(customJwtAuthenticationEntryPoint)
+                .accessDeniedHandler(customAccessDeniedHandler)
+                .and()
+                .authorizeHttpRequests()
+                .requestMatchers(AUTH_WHITELIST).permitAll()
+                .anyRequest().authenticated()
+                .and()
+                .addFilterBefore(jwtAuthenticationFilter, UsernamePasswordAuthenticationFilter.class)
+                .build();
+    }
+
+    @Bean
+    public WebMvcConfigurer corsConfigurer() {
+        return new WebMvcConfigurer() {
+            @Override
+            public void addCorsMappings(CorsRegistry registry) {
+                registry.addMapping("/**")
+                        .allowedOrigins("*")
+                        .allowedOriginPatterns("*")
+                        .allowedMethods("*");
+            }
+        };
+    }
+}

second-seminar/second-seminar/src/main/java/secondSeminar/secondSeminar/config/UserAuthentication.java

@@ -0,0 +1,13 @@
+package secondSeminar.secondSeminar.config;
+
+import java.util.Collection;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.GrantedAuthority;
+
+public class UserAuthentication extends UsernamePasswordAuthenticationToken {
+
+    // 사용자 인증 객체 생성
+    public UserAuthentication(Object principal, Object credentials, Collection<? extends GrantedAuthority> authorities) {
+        super(principal, credentials, authorities);
+    }
+}