CODEWITHSUNDEEP
androidamazon-web-servicesamazon-s3
Busman
Busman

Reputation: 635

Android AWS S3 - Objects "don't exist" after upgrading sdk version from "2.2.+" to "2.6.7"

I have code for an Android app that uses S3. I had set it up almost a year ago following this example, where, in the app dependencies, it declares:

dependencies {
    compile 'com.amazonaws:aws-android-sdk-core:2.2.+'
    compile 'com.amazonaws:aws-android-sdk-s3:2.2.+'
}

The current version at the time of writing this is 2.6.7.

Now, my problem is:

//This code came from the Mobile Hub sample application

//Obtain a reference to the mobile client. It is created in the Application class.
final AWSMobileClient awsMobileClient = AWSMobileClient.defaultMobileClient();

//Obtain a reference to the identity manager.
IdentityManager identityManager = awsMobileClient.getIdentityManager();

AmazonS3 s3Client = new AmazonS3Client(identityManager.getCredentialsProvider());

try{

    //This used to return TRUE but now returns FALSE
    boolean objectExists = s3Client.doesObjectExist(BUCKET_NAME, key);

    ...
//catch, etc.

Consequently, I am unable to download objects. I assume that this is somehow an authentication-related issue, and in following security principles is just telling me the object doesn't exist.

Nothing about the bucket name or keys has changed on either end, and I verified that the issue can be triggered and resolved by changing:

compile 'com.amazonaws:aws-android-sdk-s3:2.2.+' //works

to

compile 'com.amazonaws:aws-android-sdk-s3:2.6.7' //does not work

and rebuilding/running the app.

I'm unable to find anything in the documentation or anything about changes in versions that would cause this. Does anyone know? I've yet to see how high I can go in version without this problem occurring.

EDIT: 2.3.9 works fine, 2.4.0 is where the problem arises. I can't ascertain which of those changes could cause the issue.

Upvotes: 0

Views: 205

Answers (1)

Ruby
Ruby

Reputation: 1441

If you are using version >= 2.6.0,

dependencies {
    compile ('com.amazonaws:aws-android-sdk-auth-core:2.6.0@aar') { transitive = true; }
    compile 'com.amazonaws:aws-android-sdk-core:2.6.+'
    compile 'com.amazonaws:aws-android-sdk-s3:2.6.0'
}

1) Create an instance of IdentityManager:

import com.amazonaws.mobile.config.AWSConfiguration;
import com.amazonaws.mobile.auth.core.IdentityManager;

IdentityManager idm = new IdentityManager(getApplicationContext(), new AWSConfiguration(getApplicationContext()));
IdentityManager.setDefaultIdentityManager(idm);

2) Use it with S3Client.

AmazonS3 s3Client = new AmazonS3Client(IdentityManager.getDefaultIdentityManager().getCredentialsProvider());

try{

    //This used to return TRUE but now returns FALSE
    boolean objectExists = s3Client.doesObjectExist(BUCKET_NAME, key);

    ...
//catch, etc.

Upvotes: 1

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