GetObject is failing with S3 when there are prefixes are involved

[harshavardhana]

$ java -cp "api/build/libs/minio-3.0.0-DEV-all.jar:."  GetObject
Error occurred: error occured
ErrorResponse(code=SignatureDoesNotMatch, message=The request signature we calculated does not match the signature you provided. Check your key and signing method., bucketName=null, objectName=null, resource=null, requestId=65FB0FB583B43898, hostId=pRBfWpB/t0ddnMjP+J4HFJqLBRsp/gq/RRnKFDZxLRGgPO3HbB0qsK+YTOQorb1QdjCZ88GiGnU=)
request={method=GET, url=https://ferenginar.s3-eu-central-1.amazonaws.com/1%2Fdir%2Fissue, headers=Range: bytes=0-
Host: ferenginar.s3-eu-central-1.amazonaws.com
User-Agent: Minio (amd64; amd64) minio-java/dev
x-amz-content-sha256: UNSIGNED-PAYLOAD
x-amz-date: 20161222T225231Z
Authorization: AWS4-HMAC-SHA256 Credential=AKIAJY2EP7JTV2SUOH4Q/20161222/eu-central-1/s3/aws4_request, SignedHeaders=host;range;x-amz-content-sha256;x-amz-date, Signature=3dab61c1cc810759a835f7dbc0a611d6e5a4368b0181b86b537eb311a1eaba8e
}
response={code=403, headers=x-amz-request-id: 65FB0FB583B43898
x-amz-id-2: pRBfWpB/t0ddnMjP+J4HFJqLBRsp/gq/RRnKFDZxLRGgPO3HbB0qsK+YTOQorb1QdjCZ88GiGnU=
Content-Type: application/xml
Transfer-Encoding: chunked
Date: Thu, 22 Dec 2016 22:52:32 GMT
Server: AmazonS3
OkHttp-Sent-Millis: 1482447152557
OkHttp-Received-Millis: 1482447152766

Same call fails with minio server as well under same conditions

[harshavardhana]

A sample program

import java.io.InputStream;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.security.InvalidKeyException;

import java.nio.charset.StandardCharsets;

import org.xmlpull.v1.XmlPullParserException;

import io.minio.MinioClient;
import io.minio.errors.MinioException;

public class GetObject {
  /**
   * MinioClient.getObject() example.
   */
  public static void main(String[] args)
    throws IOException, NoSuchAlgorithmException, InvalidKeyException, XmlPullParserException {
    try {
      /* play.minio.io for test and development. */
      MinioClient minioClient = new MinioClient("http://localhost:9000", "USWUXHGYZQYFYFFIT3RE",
                                                "MOJRH0mkL1IPauahWITSVvyDrQbEEIwljvmxdq03");

      /* Amazon S3: */
      // MinioClient minioClient = new MinioClient("https://s3.amazonaws.com", "YOUR-ACCESSKEYID",
      //                                           "YOUR-SECRETACCESSKEY");

      // Check whether the object exists using statObject().  If the object is not found,
      // statObject() throws an exception.  It means that the object exists when statObject()
      // execution is successful.
      //      minioClient.statObject("vadmeste", "dir/subdir/CONTRIBUTING.md");

      // Get input stream to have content of 'my-objectname' from 'my-bucketname'
      InputStream stream = minioClient.getObject("test",
                                                 "1/ferenginar/empty");

      // Read the input stream and print to the console till EOF.
      byte[] buf = new byte[16384];
      int bytesRead;
      while ((bytesRead = stream.read(buf, 0, buf.length)) >= 0) {
        System.out.println(new String(buf, 0, bytesRead, StandardCharsets.UTF_8));
      }

      // Close the input stream.
      stream.close();
    } catch (MinioException e) {
      System.out.println("Error occurred: " + e);
    }
  }
}