software.amazon.awssdk.auth.signer.internal

Class BaseAws4Signer

java.lang.Object

software.amazon.awssdk.auth.signer.internal.AbstractAwsSigner

software.amazon.awssdk.auth.signer.internal.AbstractAws4Signer<Aws4SignerParams,Aws4PresignerParams>

software.amazon.awssdk.auth.signer.internal.BaseAws4Signer

All Implemented Interfaces:

Presigner, Signer

Direct Known Subclasses:

Aws4Signer, Aws4UnsignedPayloadSigner, BaseAsyncAws4Signer

public abstract class BaseAws4Signer
extends AbstractAws4Signer<Aws4SignerParams,Aws4PresignerParams>

Abstract base class for concrete implementations of Aws4 signers.

Field Summary

Fields inherited from class software.amazon.awssdk.auth.signer.internal.AbstractAws4Signer

EMPTY_STRING_SHA256_HEX

Constructor Summary

Constructors

Constructor and Description
BaseAws4Signer()

Method Summary

Modifier and Type	Method and Description
protected String	calculateContentHashPresign(SdkHttpFullRequest.Builder mutableRequest, Aws4PresignerParams signerParams) Calculate the hash of the request's payload.
SdkHttpFullRequest	presign(SdkHttpFullRequest request, Aws4PresignerParams signingParams)
SdkHttpFullRequest	presign(SdkHttpFullRequest requestToSign, ExecutionAttributes executionAttributes)
protected void	processRequestPayload(SdkHttpFullRequest.Builder mutableRequest, byte[] signature, byte[] signingKey, Aws4SignerRequestParams signerRequestParams, Aws4SignerParams signerParams) Subclass could override this method to perform any additional procedure on the request payload, with access to the result from signing the header.
SdkHttpFullRequest	sign(SdkHttpFullRequest request, Aws4SignerParams signingParams)
SdkHttpFullRequest	sign(SdkHttpFullRequest request, ExecutionAttributes executionAttributes)

Methods inherited from class software.amazon.awssdk.auth.signer.internal.AbstractAws4Signer

addSessionCredentials, calculateContentHash, deriveSigningKey, doPresign, doSign, extractPresignerParams, extractSignerParams

Methods inherited from class software.amazon.awssdk.auth.signer.internal.AbstractAwsSigner

getBinaryRequestPayloadStream, getCanonicalizedEndpoint, getCanonicalizedQueryString, sanitizeCredentials, sign, sign, signAndBase64Encode, signWithMac

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseAws4Signer

public BaseAws4Signer()

Method Detail

sign

public SdkHttpFullRequest sign(SdkHttpFullRequest request,
                               ExecutionAttributes executionAttributes)

sign

public SdkHttpFullRequest sign(SdkHttpFullRequest request,
                               Aws4SignerParams signingParams)

presign

public SdkHttpFullRequest presign(SdkHttpFullRequest requestToSign,
                                  ExecutionAttributes executionAttributes)

presign

public SdkHttpFullRequest presign(SdkHttpFullRequest request,
                                  Aws4PresignerParams signingParams)

processRequestPayload

protected void processRequestPayload(SdkHttpFullRequest.Builder mutableRequest,
                                     byte[] signature,
                                     byte[] signingKey,
                                     Aws4SignerRequestParams signerRequestParams,
                                     Aws4SignerParams signerParams)

Subclass could override this method to perform any additional procedure on the request payload, with access to the result from signing the header. (e.g. Signing the payload by chunk-encoding). The default implementation doesn't need to do anything.

Specified by:

processRequestPayload in class AbstractAws4Signer<Aws4SignerParams,Aws4PresignerParams>

calculateContentHashPresign

protected String calculateContentHashPresign(SdkHttpFullRequest.Builder mutableRequest,
                                             Aws4PresignerParams signerParams)

Calculate the hash of the request's payload. In case of pre-sign, the existing code would generate the hash of an empty byte array and returns it. This method can be overridden by sub classes to provide different values (e.g) For S3 pre-signing, the content hash calculation is different from the general implementation.

Specified by:

calculateContentHashPresign in class AbstractAws4Signer<Aws4SignerParams,Aws4PresignerParams>