凭证提供商未授权例外 AWS 安卓开发工具包

Question

我正在尝试使用具有联合身份的 AWS IoT 上的经过身份验证的用户进行发布和订阅。直到我不断收到错误CognitoCachingCredentialsProvider: Failure to get credentials

我抬头看了看这里。但是他们提供的片段不再被Facebook使用。如何解决此问题？

安卓代码：

public void IntializeAwsIot() {
clientId = "us-east-1:fcbd66e0-***************";
// Initialize the AWS Cognito credentials provider
credentialsProvider = new CognitoCachingCredentialsProvider(
getApplicationContext(), // context
AWSConfiguration.AMAZON_COGNITO_IDENTITY_POOL_ID,// Identity Pool ID
AWSConfiguration.AMAZON_COGNITO_REGION // Region
);
Region region = Region.getRegion(AWSConfiguration.AMAZON_COGNITO_REGION);
// MQTT Client
mqttManager = new AWSIotMqttManager(clientId, CUSTOMER_SPECIFIC_ENDPOINT);

// The following block uses IAM user credentials for authentication with AWS IoT.
//awsCredentials = new BasicAWSCredentials("ACCESS_KEY_CHANGE_ME", "SECRET_KEY_CHANGE_ME");
//btnConnect.setEnabled(true);
// The following block uses a Cognito credentials provider for authentication with AWS IoT.
new Thread(new Runnable() {
@Override
public void run() {
awsCredentials = credentialsProvider.getCredentials();
Connect();
}
}).start();
}

错误：

/com.amazon.mysampleapp E/CognitoCachingCredentialsProvider: Failure to get credentials
com.amazonaws.services.cognitoidentity.model.NotAuthorizedException: Access to Identity 'us-east-1:fcbd66e0-**************' is forbidden. (Service: AmazonCognitoIdentity; Status Code: 400; Error Code: NotAuthorizedException; Request ID: 0fa5100d-88a0-11e7-af8c-854a7b8add4d)
                     at com.amazonaws.http.AmazonHttpClient.handleErrorResponse(AmazonHttpClient.java:729)
                     at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:405)
                     at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:212)
                     at com.amazonaws.services.cognitoidentity.AmazonCognitoIdentityClient.invoke(AmazonCognitoIdentityClient.java:558)
                     at com.amazonaws.services.cognitoidentity.AmazonCognitoIdentityClient.getCredentialsForIdentity(AmazonCognitoIdentityClient.java:388)
                     at com.amazonaws.auth.CognitoCredentialsProvider.populateCredentialsWithCognito(CognitoCredentialsProvider.java:691)
                     at com.amazonaws.auth.CognitoCredentialsProvider.startSession(CognitoCredentialsProvider.java:617)
                     at com.amazonaws.auth.CognitoCredentialsProvider.getCredentials(CognitoCredentialsProvider.java:388)
                     at com.amazonaws.auth.CognitoCachingCredentialsProvider.getCredentials(CognitoCachingCredentialsProvider.java:442)
                     at com.mysampleapp.AWSIoT.PubSub$1.run(PubSub.java:69)
                     at java.lang.Thread.run(Thread.java:818)

Answer 1

问题是 Cognito 缓存中没有凭据。因此，我们需要保存适当的凭据，以便获取凭据函数可以工作。

我们只需要添加以下内容。

Map<String, String> logins = new HashMap<String, String>();
logins.put("graph.facebook.com", AccessToken.getCurrentAccessToken().getToken());
credentialsProvider.setLogins(logins);