59 lines
1.8 KiB
Java
59 lines
1.8 KiB
Java
package com.bezkoder.springjwt.security.jwt;
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import java.util.Date;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.security.core.Authentication;
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import org.springframework.stereotype.Component;
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import com.bezkoder.springjwt.security.services.UserDetailsImpl;
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import io.jsonwebtoken.*;
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@Component
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public class JwtUtils {
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private static final Logger logger = LoggerFactory.getLogger(JwtUtils.class);
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@Value("${bezkoder.app.jwtSecret}")
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private String jwtSecret;
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@Value("${bezkoder.app.jwtExpirationMs}")
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private int jwtExpirationMs;
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public String generateJwtToken(Authentication authentication) {
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UserDetailsImpl userPrincipal = (UserDetailsImpl) authentication.getPrincipal();
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return Jwts.builder()
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.setSubject((userPrincipal.getUsername()))
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.setIssuedAt(new Date())
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.setExpiration(new Date((new Date()).getTime() + jwtExpirationMs))
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.signWith(SignatureAlgorithm.HS512, jwtSecret)
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.compact();
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}
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public String getUserNameFromJwtToken(String token) {
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return Jwts.parser().setSigningKey(jwtSecret).parseClaimsJws(token).getBody().getSubject();
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}
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public boolean validateJwtToken(String authToken) {
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try {
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Jwts.parser().setSigningKey(jwtSecret).parseClaimsJws(authToken);
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return true;
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} catch (SignatureException e) {
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logger.error("Invalid JWT signature: {}", e.getMessage());
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} catch (MalformedJwtException e) {
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logger.error("Invalid JWT token: {}", e.getMessage());
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} catch (ExpiredJwtException e) {
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logger.error("JWT token is expired: {}", e.getMessage());
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} catch (UnsupportedJwtException e) {
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logger.error("JWT token is unsupported: {}", e.getMessage());
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} catch (IllegalArgumentException e) {
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logger.error("JWT claims string is empty: {}", e.getMessage());
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}
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return false;
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}
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}
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