PHWD4LuM

1private static void signup(String username, String password, String email) {
2        SignUpRequest signup = new SignUpRequest();
3        signup.setClientId("CLIENT_ID");
4        signup.setSecretHash(getSecretHash(username, "CLIENT_ID", "SECRET_HASH"));
5
6        signup.setUsername(username);
7        signup.setPassword(password);
8
9        List<AttributeType> attributeTypeList = new ArrayList<>();
10        attributeTypeList.add(new AttributeType().withName("email").withValue(email));
11        signup.setUserAttributes(attributeTypeList);
12
13        AWSCognitoIdentityProvider provider = AWSCognitoIdentityProviderClientBuilder.standard().withRegion(Regions.US_EAST_1).build();
14        SignUpResult signUpResult = provider.signUp(signup);
15        System.out.println(signUpResult.toString());
16    }
17
18    public static void login(String username, String password) {
19        AdminInitiateAuthRequest authRequest = new AdminInitiateAuthRequest();
20        authRequest.setAuthFlow(AuthFlowType.ADMIN_NO_SRP_AUTH);
21        authRequest.setClientId("CLIENT_ID");
22        authRequest.setUserPoolId("us-east-1_SvY58FCOV");
23
24        Map<String, String> authParamMap = new HashMap<>();
25        authParamMap.put("USERNAME", username);
26        authParamMap.put("PASSWORD", password);
27        authParamMap.put("SECRET_HASH", getSecretHash(username, "CLIENT_ID", "SECRET_HASH"));
28
29        BasicAWSCredentials awsCreds = new BasicAWSCredentials("ACCESS_KEY", "SECRET_KEY");
30        AWSCognitoIdentityProvider provider = AWSCognitoIdentityProviderClientBuilder.standard()
31                .withCredentials(new AWSStaticCredentialsProvider(awsCreds))
32                .withRegion(Regions.US_EAST_1).build();
33        AdminInitiateAuthResult adminInitiateAuthResult = provider.adminInitiateAuth(authRequest);
34    }
35
36    public static String getSecretHash(String userId, String clientId, String clientSecret) {
37
38        if (userId == null) {
39            throw new IllegalArgumentException("User ID cannot be null.");
40        }
41
42        if (clientId == null) {
43            throw new IllegalArgumentException("Client ID cannot be null.");
44        }
45
46        if (clientSecret == null) {
47            return null;
48        }
49
50        SecretKeySpec signingKey = new SecretKeySpec(clientSecret.getBytes(StringUtils.UTF8), "HmacSHA256");
51
52        try {
53            Mac mac = Mac.getInstance("HmacSHA256");
54            mac.init(signingKey);
55            mac.update(userId.getBytes(StringUtils.UTF8));
56            byte[] rawHmac = mac.doFinal(clientId.getBytes(StringUtils.UTF8));
57            return  new String(Base64.encode(rawHmac));
58        } catch (Exception e) {
59            throw new RuntimeException("Errors in HMAC calculation.");
60        }
61    }
62
63