74bUYQtX

1private final AuthenticationManager authenticationManager;
2    private final PropertyFileText properties;
3
4    public JWTAuthenticationFilter(AuthenticationManager authenticationManager) {
5        this.authenticationManager = authenticationManager;
6        properties = new PropertyFileText(this.getClass().getResource("/security.properties").getPath());
7        setUsernameParameter("email");
8    }
9
10    @Override
11    public Authentication attemptAuthentication(HttpServletRequest httpServletRequest,
12                                                HttpServletResponse httpServletResponse)
13            throws AuthenticationException {
14        try {
15            ObjectMapper objectMapper = new ObjectMapper();
16            AuthenticationCredentials credentials = objectMapper.readValue(httpServletRequest.getInputStream(),
17                    AuthenticationCredentials.class);
18
19            return authenticationManager.authenticate(
20                    new UsernamePasswordAuthenticationToken(
21                        credentials.getEmail(),
22                        credentials.getPassword(), emptyList()
23                    )
24            );
25        } catch (IOException e) {
26            throw new RuntimeException(e);
27        }
28    }
29
30    @Override
31    protected void successfulAuthentication(HttpServletRequest request, HttpServletResponse response, FilterChain chain, Authentication authResult) throws IOException, ServletException {
32        long expirationTime = Long.valueOf(properties.read("EXPIRATION_TIME"));
33        String secretKey = properties.read("SECRET");
34        String headerString = properties.read("HEADER_STRING");
35        String tokenPrefix = properties.read("TOKEN_PREFIX");
36
37        String token = Jwts.builder()
38                .setSubject(((User) authResult.getPrincipal()).getUsername())
39                .setExpiration(new Date(System.currentTimeMillis() + expirationTime))
40                .signWith(SignatureAlgorithm.HS512, secretKey)
41                .compact();
42
43        response.addHeader(headerString, tokenPrefix + token);
44    }