checksum

type Algorithm string

type InputMiddlewareOptions struct {
	// GetAlgorithm is a function to get the checksum algorithm of the
	// input payload from the input parameters.
	//
	// Given the input parameter value, the function must return the algorithm
	// and true, or false if no algorithm is specified.
	GetAlgorithm func(interface{}) (string, bool)

	// Forces the middleware to compute the input payload's checksum. The
	// request will fail if the algorithm is not specified or unable to compute
	// the checksum.
	RequireChecksum bool

	// Enables support for wrapping the serialized input payload with a
	// content-encoding: aws-check wrapper, and including a trailer for the
	// algorithm's checksum value.
	//
	// The checksum will not be computed, nor added as trailing checksum, if
	// the Algorithm's header is already set on the request.
	EnableTrailingChecksum bool

	// Enables support for computing the SHA256 checksum of input payloads
	// along with the algorithm specified checksum. Prevents downstream
	// middleware handlers (computePayloadSHA256) re-reading the payload.
	//
	// The SHA256 payload checksum will only be used for computed for requests
	// that are not TLS, or do not enable trailing checksums.
	//
	// The SHA256 payload hash will not be computed, if the Algorithm's header
	// is already set on the request.
	EnableComputeSHA256PayloadHash bool

	// Enables support for setting the aws-chunked decoded content length
	// header for the decoded length of the underlying stream. Will only be set
	// when used with trailing checksums, and aws-chunked content-encoding.
	EnableDecodedContentLengthHeader bool
}

type OutputMiddlewareOptions struct {
	// GetValidationMode is a function to get the checksum validation
	// mode of the output payload from the input parameters.
	//
	// Given the input parameter value, the function must return the validation
	// mode and true, or false if no mode is specified.
	GetValidationMode func(interface{}) (string, bool)

	// The set of checksum algorithms that should be used for response payload
	// checksum validation. The algorithm(s) used will be a union of the
	// output's returned algorithms and this set.
	//
	// Only the first algorithm in the union is currently used.
	ValidationAlgorithms []string

	// If set the middleware will ignore output multipart checksums. Otherwise
	// an checksum format error will be returned by the middleware.
	IgnoreMultipartValidation bool

	// When set the middleware will log when output does not have checksum or
	// algorithm to validate.
	LogValidationSkipped bool

	// When set the middleware will log when the output contains a multipart
	// checksum that was, skipped and not validated.
	LogMultipartValidationSkipped bool
}