@Override
public void signRequest(HttpUriRequest request) {
AWSCredentials credentials = awsCredentialsProvider.getCredentials();
if (credentials instanceof AWSSessionCredentials) {
request.addHeader(
SESSION_TOKEN_HEADER, ((AWSSessionCredentials) credentials).getSessionToken());
}
String canonicalRequest = createCanonicalRequest(request);
log.debug("canonicalRequest: " + canonicalRequest);
String[] requestParts = canonicalRequest.split("\n");
String signedHeaders = requestParts[requestParts.length - 2];
String stringToSign = createStringToSign(canonicalRequest);
log.debug("stringToSign: " + stringToSign);
String authScope = stringToSign.split("\n")[2];
String signature = createSignature(stringToSign);
String authHeader =
String.format(
AUTH_HEADER_FORMAT,
credentials.getAWSAccessKeyId(),
authScope,
signedHeaders,
signature);
request.addHeader(AUTH_HEADER_NAME, authHeader);
}
/**
* Computes the presigned URL for the given S3 resource.
*
* @param path String like "/bucketName/folder/folder/abc.txt" that represents the resource to
* request.
*/
public URL buildPresignedURL(String path) throws AmazonClientException {
AWSCredentials credentials = awsCredentialsProvider.getCredentials();
long expires = System.currentTimeMillis() + 60 * 60 * 1000;
GeneratePresignedUrlRequest request =
new GeneratePresignedUrlRequest(path, credentials.getAWSSecretKey());
request.setExpiration(new Date(expires));
AmazonS3 s3 = new AmazonS3Client(credentials);
return s3.generatePresignedUrl(request);
}
public void sign(Request<T> request) throws SignatureException {
String expirationInSeconds = Long.toString(expiration.getTime() / 1000L);
String canonicalString =
RestUtils.makeS3CanonicalString(httpVerb, resourcePath, request, expirationInSeconds);
String secretKey;
String accessKeyId;
synchronized (credentials) {
secretKey = credentials.getAWSSecretKey();
accessKeyId = credentials.getAWSAccessKeyId();
}
String signature = super.sign(canonicalString, secretKey, SigningAlgorithm.HmacSHA1);
request.addParameter("AWSAccessKeyId", accessKeyId);
request.addParameter("Expires", expirationInSeconds);
request.addParameter("Signature", signature);
}
public static void main(String[] args) throws Exception {
credentials =
new PropertiesCredentials(
S3TransferProgressSample.class.getResourceAsStream("AwsCredentials.properties"));
// TransferManager manages a pool of threads, so we create a
// single instance and share it throughout our application.
tx = new TransferManager(credentials);
bucketName = "s3-upload-sdk-sample-" + credentials.getAWSAccessKeyId().toLowerCase();
new S3TransferProgressSample();
}
