com.amazonaws.services.s3.internal

Class AWSS3V4Signer

java.lang.Object

com.amazonaws.auth.AbstractAWSSigner

com.amazonaws.auth.AWS4Signer

com.amazonaws.services.s3.internal.AWSS3V4Signer

All Implemented Interfaces:

Presigner, RegionAwareSigner, ServiceAwareSigner, Signer

public class AWSS3V4Signer
extends AWS4Signer
implements Presigner

AWS4 signer implementation for AWS S3

Nested Class Summary

Nested classes/interfaces inherited from class com.amazonaws.auth.AWS4Signer

AWS4Signer.HeaderSigningResult

Field Summary

Fields inherited from class com.amazonaws.auth.AWS4Signer

ALGORITHM, doubleUrlEncode, log, overriddenDate, regionName, serviceName, TERMINATOR

Constructor Summary

Constructors

Constructor and Description
AWSS3V4Signer() Don't double-url-encode path elements; S3 expects path elements to be encoded only once in the canonical URI.

Method Summary

Methods

Modifier and Type	Method and Description
protected String	calculateContentHash(Request<?> request) Returns the pre-defined header value and set other necessary headers if the request needs to be chunk-encoded.
void	presignRequest(Request<?> request, AWSCredentials credentials, Date expiration) Sign the URL using V4, it will compute the signature and add it to the query string as value of parameter 'X-Amz-Signature'.
protected void	processRequestPayload(Request<?> request, AWS4Signer.HeaderSigningResult headerSigningResult) If necessary, creates a chunk-encoding wrapper on the request payload.

Methods inherited from class com.amazonaws.auth.AWS4Signer

addHostHeader, addSessionCredentials, computeSignature, extractRegionName, extractServiceName, getCanonicalizedHeaderString, getCanonicalRequest, getDateFromRequest, getDateStamp, getScope, getSignedHeadersString, getStringToSign, getTimeStamp, setRegionName, setServiceName, sign

Methods inherited from class com.amazonaws.auth.AbstractAWSSigner

getBinaryRequestPayload, getBinaryRequestPayloadStream, getBinaryRequestPayloadStreamWithoutQueryParams, getBinaryRequestPayloadWithoutQueryParams, getCanonicalizedEndpoint, getCanonicalizedQueryString, getCanonicalizedQueryString, getCanonicalizedResourcePath, getCanonicalizedResourcePath, getRequestPayload, getRequestPayloadWithoutQueryParams, getSignatureDate, getTimeOffset, hash, hash, hash, newString, sanitizeCredentials, sign, sign, signAndBase64Encode, signAndBase64Encode

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AWSS3V4Signer

public AWSS3V4Signer()

Don't double-url-encode path elements; S3 expects path elements to be encoded only once in the canonical URI.

Method Detail

presignRequest

public void presignRequest(Request<?> request,
                  AWSCredentials credentials,
                  Date expiration)

Sign the URL using V4, it will compute the signature and add it to the query string as value of parameter 'X-Amz-Signature'.

Specified by:

presignRequest in interface Presigner

Parameters:

request - The request to sign.

credentials - The credentials to sign it with.

expiration - The time when this presigned URL will expire.

processRequestPayload

protected void processRequestPayload(Request<?> request,
                         AWS4Signer.HeaderSigningResult headerSigningResult)

If necessary, creates a chunk-encoding wrapper on the request payload.

Overrides:

processRequestPayload in class AWS4Signer

calculateContentHash

protected String calculateContentHash(Request<?> request)

Returns the pre-defined header value and set other necessary headers if the request needs to be chunk-encoded. Otherwise calls the superclass method which calculates the hash of the whole content for signing.

Overrides:

calculateContentHash in class AWS4Signer