TokenProvider.java
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package com.order.erp.security;
import com.canrd.shop.security.config.SecurityProperties;
import io.jsonwebtoken.*;
import io.jsonwebtoken.io.Decoders;
import io.jsonwebtoken.security.Keys;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.stereotype.Component;
import javax.servlet.http.HttpServletRequest;
import java.security.Key;
import java.util.Arrays;
import java.util.Collection;
import java.util.Date;
import java.util.stream.Collectors;
/**
* @author /
*/
@Slf4j
@Component
public class TokenProvider implements InitializingBean {
private final SecurityProperties properties;
private static final String AUTHORITIES_KEY = "auth";
private Key key;
public TokenProvider(SecurityProperties properties) {
this.properties = properties;
}
@Override
public void afterPropertiesSet() {
byte[] keyBytes = Decoders.BASE64.decode(properties.getBase64Secret());
this.key = Keys.hmacShaKeyFor(keyBytes);
}
public String createToken(Authentication authentication) {
String authorities = authentication.getAuthorities().stream()
.map(GrantedAuthority::getAuthority)
.collect(Collectors.joining(","));
long now = (new Date()).getTime();
Date validity = new Date(now + properties.getTokenValidityInSeconds());
return Jwts.builder()
.setSubject(authentication.getName())
.claim(AUTHORITIES_KEY, authorities)
.signWith(key, SignatureAlgorithm.HS512)
.setExpiration(validity)
.compact();
}
Authentication getAuthentication(String token) {
Claims claims = Jwts.parser()
.setSigningKey(key)
.parseClaimsJws(token)
.getBody();
Collection<? extends GrantedAuthority> authorities =
Arrays.stream(claims.get(AUTHORITIES_KEY).toString().split(","))
.map(SimpleGrantedAuthority::new)
.collect(Collectors.toList());
User principal = new User(claims.getSubject(), "", authorities);
return new UsernamePasswordAuthenticationToken(principal, token, authorities);
}
boolean validateToken(String authToken) {
try {
Jwts.parser().setSigningKey(key).parseClaimsJws(authToken);
return true;
} catch (io.jsonwebtoken.security.SecurityException | MalformedJwtException e) {
log.info("Invalid JWT signature.");
e.printStackTrace();
} catch (ExpiredJwtException e) {
log.info("Expired JWT token.");
e.printStackTrace();
} catch (UnsupportedJwtException e) {
log.info("Unsupported JWT token.");
e.printStackTrace();
} catch (IllegalArgumentException e) {
log.info("JWT token compact of handler are invalid.");
e.printStackTrace();
}
return false;
}
public String getToken(HttpServletRequest request) {
final String requestHeader = request.getHeader(properties.getHeader());
if (requestHeader != null && requestHeader.startsWith(properties.getTokenStartWith())) {
return requestHeader.substring(7);
}
return null;
}
}