YQ Connector: prepare code base for S3 integration

1. Кодовая база Коннектора переписана с помощью Go дженериков так, чтобы добавление нового источника данных (в частности S3 + csv) максимально переиспользовало имеющийся код (чтобы сохранялась логика нарезания на блоки данных, учёт трафика и пр.)
2. API Connector расширено для работы с S3, но ещё пока не протестировано.

1 files changed, 717 insertions, 0 deletions

diff --git a/vendor/github.com/aws/aws-sdk-go-v2/service/s3/api_op_GetObject.go b/vendor/github.com/aws/aws-sdk-go-v2/service/s3/api_op_GetObject.go
new file mode 100644
index 0000000000..e84be49a97
--- /dev/null
+++ b/vendor/github.com/aws/aws-sdk-go-v2/service/s3/api_op_GetObject.go
@@ -0,0 +1,717 @@
+// Code generated by smithy-go-codegen DO NOT EDIT.
+
+package s3
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"github.com/aws/aws-sdk-go-v2/aws"
+	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
+	"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
+	internalauth "github.com/aws/aws-sdk-go-v2/internal/auth"
+	"github.com/aws/aws-sdk-go-v2/internal/v4a"
+	internalChecksum "github.com/aws/aws-sdk-go-v2/service/internal/checksum"
+	s3cust "github.com/aws/aws-sdk-go-v2/service/s3/internal/customizations"
+	"github.com/aws/aws-sdk-go-v2/service/s3/types"
+	smithyendpoints "github.com/aws/smithy-go/endpoints"
+	"github.com/aws/smithy-go/middleware"
+	smithyhttp "github.com/aws/smithy-go/transport/http"
+	"io"
+	"time"
+)
+
+// Retrieves objects from Amazon S3. To use GET , you must have READ access to the
+// object. If you grant READ access to the anonymous user, you can return the
+// object without using an authorization header. An Amazon S3 bucket has no
+// directory hierarchy such as you would find in a typical computer file system.
+// You can, however, create a logical hierarchy by using object key names that
+// imply a folder structure. For example, instead of naming an object sample.jpg ,
+// you can name it photos/2006/February/sample.jpg . To get an object from such a
+// logical hierarchy, specify the full key name for the object in the GET
+// operation. For a virtual hosted-style request example, if you have the object
+// photos/2006/February/sample.jpg , specify the resource as
+// /photos/2006/February/sample.jpg . For a path-style request example, if you have
+// the object photos/2006/February/sample.jpg in the bucket named examplebucket ,
+// specify the resource as /examplebucket/photos/2006/February/sample.jpg . For
+// more information about request types, see HTTP Host Header Bucket Specification (https://docs.aws.amazon.com/AmazonS3/latest/dev/VirtualHosting.html#VirtualHostingSpecifyBucket)
+// . For more information about returning the ACL of an object, see GetObjectAcl (https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObjectAcl.html)
+// . If the object you are retrieving is stored in the S3 Glacier Flexible
+// Retrieval or S3 Glacier Deep Archive storage class, or S3 Intelligent-Tiering
+// Archive or S3 Intelligent-Tiering Deep Archive tiers, before you can retrieve
+// the object you must first restore a copy using RestoreObject (https://docs.aws.amazon.com/AmazonS3/latest/API/API_RestoreObject.html)
+// . Otherwise, this action returns an InvalidObjectState error. For information
+// about restoring archived objects, see Restoring Archived Objects (https://docs.aws.amazon.com/AmazonS3/latest/dev/restoring-objects.html)
+// . Encryption request headers, like x-amz-server-side-encryption , should not be
+// sent for GET requests if your object uses server-side encryption with Key
+// Management Service (KMS) keys (SSE-KMS), dual-layer server-side encryption with
+// Amazon Web Services KMS keys (DSSE-KMS), or server-side encryption with Amazon
+// S3 managed encryption keys (SSE-S3). If your object does use these types of
+// keys, you’ll get an HTTP 400 Bad Request error. If you encrypt an object by
+// using server-side encryption with customer-provided encryption keys (SSE-C) when
+// you store the object in Amazon S3, then when you GET the object, you must use
+// the following headers:
+//   - x-amz-server-side-encryption-customer-algorithm
+//   - x-amz-server-side-encryption-customer-key
+//   - x-amz-server-side-encryption-customer-key-MD5
+//
+// For more information about SSE-C, see Server-Side Encryption (Using
+// Customer-Provided Encryption Keys) (https://docs.aws.amazon.com/AmazonS3/latest/dev/ServerSideEncryptionCustomerKeys.html)
+// . Assuming you have the relevant permission to read object tags, the response
+// also returns the x-amz-tagging-count header that provides the count of number
+// of tags associated with the object. You can use GetObjectTagging (https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObjectTagging.html)
+// to retrieve the tag set associated with an object. Permissions You need the
+// relevant read object (or version) permission for this operation. For more
+// information, see Specifying Permissions in a Policy (https://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.html)
+// . If the object that you request doesn’t exist, the error that Amazon S3 returns
+// depends on whether you also have the s3:ListBucket permission. If you have the
+// s3:ListBucket permission on the bucket, Amazon S3 returns an HTTP status code
+// 404 (Not Found) error. If you don’t have the s3:ListBucket permission, Amazon
+// S3 returns an HTTP status code 403 ("access denied") error. Versioning By
+// default, the GET action returns the current version of an object. To return a
+// different version, use the versionId subresource.
+//   - If you supply a versionId , you need the s3:GetObjectVersion permission to
+//     access a specific version of an object. If you request a specific version, you
+//     do not need to have the s3:GetObject permission. If you request the current
+//     version without a specific version ID, only s3:GetObject permission is
+//     required. s3:GetObjectVersion permission won't be required.
+//   - If the current version of the object is a delete marker, Amazon S3 behaves
+//     as if the object was deleted and includes x-amz-delete-marker: true in the
+//     response.
+//
+// For more information about versioning, see PutBucketVersioning (https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketVersioning.html)
+// . Overriding Response Header Values There are times when you want to override
+// certain response header values in a GET response. For example, you might
+// override the Content-Disposition response header value in your GET request. You
+// can override values for a set of response headers using the following query
+// parameters. These response header values are sent only on a successful request,
+// that is, when status code 200 OK is returned. The set of headers you can
+// override using these parameters is a subset of the headers that Amazon S3
+// accepts when you create an object. The response headers that you can override
+// for the GET response are Content-Type , Content-Language , Expires ,
+// Cache-Control , Content-Disposition , and Content-Encoding . To override these
+// header values in the GET response, you use the following request parameters.
+// You must sign the request, either using an Authorization header or a presigned
+// URL, when using these parameters. They cannot be used with an unsigned
+// (anonymous) request.
+//   - response-content-type
+//   - response-content-language
+//   - response-expires
+//   - response-cache-control
+//   - response-content-disposition
+//   - response-content-encoding
+//
+// Overriding Response Header Values If both of the If-Match and
+// If-Unmodified-Since headers are present in the request as follows: If-Match
+// condition evaluates to true , and; If-Unmodified-Since condition evaluates to
+// false ; then, S3 returns 200 OK and the data requested. If both of the
+// If-None-Match and If-Modified-Since headers are present in the request as
+// follows: If-None-Match condition evaluates to false , and; If-Modified-Since
+// condition evaluates to true ; then, S3 returns 304 Not Modified response code.
+// For more information about conditional requests, see RFC 7232 (https://tools.ietf.org/html/rfc7232)
+// . The following operations are related to GetObject :
+//   - ListBuckets (https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListBuckets.html)
+//   - GetObjectAcl (https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObjectAcl.html)
+func (c *Client) GetObject(ctx context.Context, params *GetObjectInput, optFns ...func(*Options)) (*GetObjectOutput, error) {
+	if params == nil {
+		params = &GetObjectInput{}
+	}
+
+	result, metadata, err := c.invokeOperation(ctx, "GetObject", params, optFns, c.addOperationGetObjectMiddlewares)
+	if err != nil {
+		return nil, err
+	}
+
+	out := result.(*GetObjectOutput)
+	out.ResultMetadata = metadata
+	return out, nil
+}
+
+type GetObjectInput struct {
+
+	// The bucket name containing the object. When using this action with an access
+	// point, you must direct requests to the access point hostname. The access point
+	// hostname takes the form
+	// AccessPointName-AccountId.s3-accesspoint.Region.amazonaws.com. When using this
+	// action with an access point through the Amazon Web Services SDKs, you provide
+	// the access point ARN in place of the bucket name. For more information about
+	// access point ARNs, see Using access points (https://docs.aws.amazon.com/AmazonS3/latest/userguide/using-access-points.html)
+	// in the Amazon S3 User Guide. When using an Object Lambda access point the
+	// hostname takes the form
+	// AccessPointName-AccountId.s3-object-lambda.Region.amazonaws.com. When you use
+	// this action with Amazon S3 on Outposts, you must direct requests to the S3 on
+	// Outposts hostname. The S3 on Outposts hostname takes the form
+	// AccessPointName-AccountId.outpostID.s3-outposts.Region.amazonaws.com . When you
+	// use this action with S3 on Outposts through the Amazon Web Services SDKs, you
+	// provide the Outposts access point ARN in place of the bucket name. For more
+	// information about S3 on Outposts ARNs, see What is S3 on Outposts? (https://docs.aws.amazon.com/AmazonS3/latest/userguide/S3onOutposts.html)
+	// in the Amazon S3 User Guide.
+	//
+	// This member is required.
+	Bucket *string
+
+	// Key of the object to get.
+	//
+	// This member is required.
+	Key *string
+
+	// To retrieve the checksum, this mode must be enabled.
+	ChecksumMode types.ChecksumMode
+
+	// The account ID of the expected bucket owner. If the bucket is owned by a
+	// different account, the request fails with the HTTP status code 403 Forbidden
+	// (access denied).
+	ExpectedBucketOwner *string
+
+	// Return the object only if its entity tag (ETag) is the same as the one
+	// specified; otherwise, return a 412 (precondition failed) error.
+	IfMatch *string
+
+	// Return the object only if it has been modified since the specified time;
+	// otherwise, return a 304 (not modified) error.
+	IfModifiedSince *time.Time
+
+	// Return the object only if its entity tag (ETag) is different from the one
+	// specified; otherwise, return a 304 (not modified) error.
+	IfNoneMatch *string
+
+	// Return the object only if it has not been modified since the specified time;
+	// otherwise, return a 412 (precondition failed) error.
+	IfUnmodifiedSince *time.Time
+
+	// Part number of the object being read. This is a positive integer between 1 and
+	// 10,000. Effectively performs a 'ranged' GET request for the part specified.
+	// Useful for downloading just a part of an object.
+	PartNumber int32
+
+	// Downloads the specified range bytes of an object. For more information about
+	// the HTTP Range header, see
+	// https://www.rfc-editor.org/rfc/rfc9110.html#name-range (https://www.rfc-editor.org/rfc/rfc9110.html#name-range)
+	// . Amazon S3 doesn't support retrieving multiple ranges of data per GET request.
+	Range *string
+
+	// Confirms that the requester knows that they will be charged for the request.
+	// Bucket owners need not specify this parameter in their requests. If either the
+	// source or destination Amazon S3 bucket has Requester Pays enabled, the requester
+	// will pay for corresponding charges to copy the object. For information about
+	// downloading objects from Requester Pays buckets, see Downloading Objects in
+	// Requester Pays Buckets (https://docs.aws.amazon.com/AmazonS3/latest/dev/ObjectsinRequesterPaysBuckets.html)
+	// in the Amazon S3 User Guide.
+	RequestPayer types.RequestPayer
+
+	// Sets the Cache-Control header of the response.
+	ResponseCacheControl *string
+
+	// Sets the Content-Disposition header of the response
+	ResponseContentDisposition *string
+
+	// Sets the Content-Encoding header of the response.
+	ResponseContentEncoding *string
+
+	// Sets the Content-Language header of the response.
+	ResponseContentLanguage *string
+
+	// Sets the Content-Type header of the response.
+	ResponseContentType *string
+
+	// Sets the Expires header of the response.
+	ResponseExpires *time.Time
+
+	// Specifies the algorithm to use to when decrypting the object (for example,
+	// AES256).
+	SSECustomerAlgorithm *string
+
+	// Specifies the customer-provided encryption key for Amazon S3 used to encrypt
+	// the data. This value is used to decrypt the object when recovering it and must
+	// match the one used when storing the data. The key must be appropriate for use
+	// with the algorithm specified in the
+	// x-amz-server-side-encryption-customer-algorithm header.
+	SSECustomerKey *string
+
+	// Specifies the 128-bit MD5 digest of the encryption key according to RFC 1321.
+	// Amazon S3 uses this header for a message integrity check to ensure that the
+	// encryption key was transmitted without error.
+	SSECustomerKeyMD5 *string
+
+	// VersionId used to reference a specific version of the object.
+	VersionId *string
+
+	noSmithyDocumentSerde
+}
+
+type GetObjectOutput struct {
+
+	// Indicates that a range of bytes was specified.
+	AcceptRanges *string
+
+	// Object data.
+	Body io.ReadCloser
+
+	// Indicates whether the object uses an S3 Bucket Key for server-side encryption
+	// with Key Management Service (KMS) keys (SSE-KMS).
+	BucketKeyEnabled bool
+
+	// Specifies caching behavior along the request/reply chain.
+	CacheControl *string
+
+	// The base64-encoded, 32-bit CRC32 checksum of the object. This will only be
+	// present if it was uploaded with the object. With multipart uploads, this may not
+	// be a checksum value of the object. For more information about how checksums are
+	// calculated with multipart uploads, see Checking object integrity (https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html#large-object-checksums)
+	// in the Amazon S3 User Guide.
+	ChecksumCRC32 *string
+
+	// The base64-encoded, 32-bit CRC32C checksum of the object. This will only be
+	// present if it was uploaded with the object. With multipart uploads, this may not
+	// be a checksum value of the object. For more information about how checksums are
+	// calculated with multipart uploads, see Checking object integrity (https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html#large-object-checksums)
+	// in the Amazon S3 User Guide.
+	ChecksumCRC32C *string
+
+	// The base64-encoded, 160-bit SHA-1 digest of the object. This will only be
+	// present if it was uploaded with the object. With multipart uploads, this may not
+	// be a checksum value of the object. For more information about how checksums are
+	// calculated with multipart uploads, see Checking object integrity (https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html#large-object-checksums)
+	// in the Amazon S3 User Guide.
+	ChecksumSHA1 *string
+
+	// The base64-encoded, 256-bit SHA-256 digest of the object. This will only be
+	// present if it was uploaded with the object. With multipart uploads, this may not
+	// be a checksum value of the object. For more information about how checksums are
+	// calculated with multipart uploads, see Checking object integrity (https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html#large-object-checksums)
+	// in the Amazon S3 User Guide.
+	ChecksumSHA256 *string
+
+	// Specifies presentational information for the object.
+	ContentDisposition *string
+
+	// Specifies what content encodings have been applied to the object and thus what
+	// decoding mechanisms must be applied to obtain the media-type referenced by the
+	// Content-Type header field.
+	ContentEncoding *string
+
+	// The language the content is in.
+	ContentLanguage *string
+
+	// Size of the body in bytes.
+	ContentLength int64
+
+	// The portion of the object returned in the response.
+	ContentRange *string
+
+	// A standard MIME type describing the format of the object data.
+	ContentType *string
+
+	// Specifies whether the object retrieved was (true) or was not (false) a Delete
+	// Marker. If false, this response header does not appear in the response.
+	DeleteMarker bool
+
+	// An entity tag (ETag) is an opaque identifier assigned by a web server to a
+	// specific version of a resource found at a URL.
+	ETag *string
+
+	// If the object expiration is configured (see PUT Bucket lifecycle), the response
+	// includes this header. It includes the expiry-date and rule-id key-value pairs
+	// providing object expiration information. The value of the rule-id is
+	// URL-encoded.
+	Expiration *string
+
+	// The date and time at which the object is no longer cacheable.
+	Expires *time.Time
+
+	// Creation date of the object.
+	LastModified *time.Time
+
+	// A map of metadata to store with the object in S3.
+	//
+	// Map keys will be normalized to lower-case.
+	Metadata map[string]string
+
+	// This is set to the number of metadata entries not returned in x-amz-meta
+	// headers. This can happen if you create metadata using an API like SOAP that
+	// supports more flexible metadata than the REST API. For example, using SOAP, you
+	// can create metadata whose values are not legal HTTP headers.
+	MissingMeta int32
+
+	// Indicates whether this object has an active legal hold. This field is only
+	// returned if you have permission to view an object's legal hold status.
+	ObjectLockLegalHoldStatus types.ObjectLockLegalHoldStatus
+
+	// The Object Lock mode currently in place for this object.
+	ObjectLockMode types.ObjectLockMode
+
+	// The date and time when this object's Object Lock will expire.
+	ObjectLockRetainUntilDate *time.Time
+
+	// The count of parts this object has. This value is only returned if you specify
+	// partNumber in your request and the object was uploaded as a multipart upload.
+	PartsCount int32
+
+	// Amazon S3 can return this if your request involves a bucket that is either a
+	// source or destination in a replication rule.
+	ReplicationStatus types.ReplicationStatus
+
+	// If present, indicates that the requester was successfully charged for the
+	// request.
+	RequestCharged types.RequestCharged
+
+	// Provides information about object restoration action and expiration time of the
+	// restored object copy.
+	Restore *string
+
+	// If server-side encryption with a customer-provided encryption key was
+	// requested, the response will include this header confirming the encryption
+	// algorithm used.
+	SSECustomerAlgorithm *string
+
+	// If server-side encryption with a customer-provided encryption key was
+	// requested, the response will include this header to provide round-trip message
+	// integrity verification of the customer-provided encryption key.
+	SSECustomerKeyMD5 *string
+
+	// If present, specifies the ID of the Key Management Service (KMS) symmetric
+	// encryption customer managed key that was used for the object.
+	SSEKMSKeyId *string
+
+	// The server-side encryption algorithm used when storing this object in Amazon S3
+	// (for example, AES256 , aws:kms , aws:kms:dsse ).
+	ServerSideEncryption types.ServerSideEncryption
+
+	// Provides storage class information of the object. Amazon S3 returns this header
+	// for all objects except for S3 Standard storage class objects.
+	StorageClass types.StorageClass
+
+	// The number of tags, if any, on the object.
+	TagCount int32
+
+	// Version of the object.
+	VersionId *string
+
+	// If the bucket is configured as a website, redirects requests for this object to
+	// another object in the same bucket or to an external URL. Amazon S3 stores the
+	// value of this header in the object metadata.
+	WebsiteRedirectLocation *string
+
+	// Metadata pertaining to the operation's result.
+	ResultMetadata middleware.Metadata
+
+	noSmithyDocumentSerde
+}
+
+func (c *Client) addOperationGetObjectMiddlewares(stack *middleware.Stack, options Options) (err error) {
+	err = stack.Serialize.Add(&awsRestxml_serializeOpGetObject{}, middleware.After)
+	if err != nil {
+		return err
+	}
+	err = stack.Deserialize.Add(&awsRestxml_deserializeOpGetObject{}, middleware.After)
+	if err != nil {
+		return err
+	}
+	if err = addlegacyEndpointContextSetter(stack, options); err != nil {
+		return err
+	}
+	if err = addSetLoggerMiddleware(stack, options); err != nil {
+		return err
+	}
+	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
+		return err
+	}
+	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
+		return err
+	}
+	if err = addResolveEndpointMiddleware(stack, options); err != nil {
+		return err
+	}
+	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
+		return err
+	}
+	if err = addRetryMiddlewares(stack, options); err != nil {
+		return err
+	}
+	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
+		return err
+	}
+	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
+		return err
+	}
+	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
+		return err
+	}
+	if err = addClientUserAgent(stack, options); err != nil {
+		return err
+	}
+	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
+		return err
+	}
+	if err = swapWithCustomHTTPSignerMiddleware(stack, options); err != nil {
+		return err
+	}
+	if err = addGetObjectResolveEndpointMiddleware(stack, options); err != nil {
+		return err
+	}
+	if err = addOpGetObjectValidationMiddleware(stack); err != nil {
+		return err
+	}
+	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetObject(options.Region), middleware.Before); err != nil {
+		return err
+	}
+	if err = addMetadataRetrieverMiddleware(stack); err != nil {
+		return err
+	}
+	if err = awsmiddleware.AddRecursionDetection(stack); err != nil {
+		return err
+	}
+	if err = addGetObjectOutputChecksumMiddlewares(stack, options); err != nil {
+		return err
+	}
+	if err = addGetObjectUpdateEndpoint(stack, options); err != nil {
+		return err
+	}
+	if err = addResponseErrorMiddleware(stack); err != nil {
+		return err
+	}
+	if err = v4.AddContentSHA256HeaderMiddleware(stack); err != nil {
+		return err
+	}
+	if err = disableAcceptEncodingGzip(stack); err != nil {
+		return err
+	}
+	if err = addRequestResponseLogging(stack, options); err != nil {
+		return err
+	}
+	if err = addendpointDisableHTTPSMiddleware(stack, options); err != nil {
+		return err
+	}
+	if err = addSerializeImmutableHostnameBucketMiddleware(stack, options); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (v *GetObjectInput) bucket() (string, bool) {
+	if v.Bucket == nil {
+		return "", false
+	}
+	return *v.Bucket, true
+}
+
+func newServiceMetadataMiddleware_opGetObject(region string) *awsmiddleware.RegisterServiceMetadata {
+	return &awsmiddleware.RegisterServiceMetadata{
+		Region:        region,
+		ServiceID:     ServiceID,
+		SigningName:   "s3",
+		OperationName: "GetObject",
+	}
+}
+
+// getGetObjectRequestValidationModeMember gets the request checksum validation
+// mode provided as input.
+func getGetObjectRequestValidationModeMember(input interface{}) (string, bool) {
+	in := input.(*GetObjectInput)
+	if len(in.ChecksumMode) == 0 {
+		return "", false
+	}
+	return string(in.ChecksumMode), true
+}
+
+func addGetObjectOutputChecksumMiddlewares(stack *middleware.Stack, options Options) error {
+	return internalChecksum.AddOutputMiddleware(stack, internalChecksum.OutputMiddlewareOptions{
+		GetValidationMode:             getGetObjectRequestValidationModeMember,
+		ValidationAlgorithms:          []string{"CRC32", "CRC32C", "SHA256", "SHA1"},
+		IgnoreMultipartValidation:     true,
+		LogValidationSkipped:          true,
+		LogMultipartValidationSkipped: true,
+	})
+}
+
+// getGetObjectBucketMember returns a pointer to string denoting a provided bucket
+// member valueand a boolean indicating if the input has a modeled bucket name,
+func getGetObjectBucketMember(input interface{}) (*string, bool) {
+	in := input.(*GetObjectInput)
+	if in.Bucket == nil {
+		return nil, false
+	}
+	return in.Bucket, true
+}
+func addGetObjectUpdateEndpoint(stack *middleware.Stack, options Options) error {
+	return s3cust.UpdateEndpoint(stack, s3cust.UpdateEndpointOptions{
+		Accessor: s3cust.UpdateEndpointParameterAccessor{
+			GetBucketFromInput: getGetObjectBucketMember,
+		},
+		UsePathStyle:                   options.UsePathStyle,
+		UseAccelerate:                  options.UseAccelerate,
+		SupportsAccelerate:             true,
+		TargetS3ObjectLambda:           false,
+		EndpointResolver:               options.EndpointResolver,
+		EndpointResolverOptions:        options.EndpointOptions,
+		UseARNRegion:                   options.UseARNRegion,
+		DisableMultiRegionAccessPoints: options.DisableMultiRegionAccessPoints,
+	})
+}
+
+// PresignGetObject is used to generate a presigned HTTP Request which contains
+// presigned URL, signed headers and HTTP method used.
+func (c *PresignClient) PresignGetObject(ctx context.Context, params *GetObjectInput, optFns ...func(*PresignOptions)) (*v4.PresignedHTTPRequest, error) {
+	if params == nil {
+		params = &GetObjectInput{}
+	}
+	options := c.options.copy()
+	for _, fn := range optFns {
+		fn(&options)
+	}
+	clientOptFns := append(options.ClientOptions, withNopHTTPClientAPIOption)
+
+	result, _, err := c.client.invokeOperation(ctx, "GetObject", params, clientOptFns,
+		c.client.addOperationGetObjectMiddlewares,
+		presignConverter(options).convertToPresignMiddleware,
+		addGetObjectPayloadAsUnsigned,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	out := result.(*v4.PresignedHTTPRequest)
+	return out, nil
+}
+
+func addGetObjectPayloadAsUnsigned(stack *middleware.Stack, options Options) error {
+	v4.RemoveContentSHA256HeaderMiddleware(stack)
+	v4.RemoveComputePayloadSHA256Middleware(stack)
+	return v4.AddUnsignedPayloadMiddleware(stack)
+}
+
+type opGetObjectResolveEndpointMiddleware struct {
+	EndpointResolver EndpointResolverV2
+	BuiltInResolver  builtInParameterResolver
+}
+
+func (*opGetObjectResolveEndpointMiddleware) ID() string {
+	return "ResolveEndpointV2"
+}
+
+func (m *opGetObjectResolveEndpointMiddleware) HandleSerialize(ctx context.Context, in middleware.SerializeInput, next middleware.SerializeHandler) (
+	out middleware.SerializeOutput, metadata middleware.Metadata, err error,
+) {
+	if awsmiddleware.GetRequiresLegacyEndpoints(ctx) {
+		return next.HandleSerialize(ctx, in)
+	}
+
+	req, ok := in.Request.(*smithyhttp.Request)
+	if !ok {
+		return out, metadata, fmt.Errorf("unknown transport type %T", in.Request)
+	}
+
+	input, ok := in.Parameters.(*GetObjectInput)
+	if !ok {
+		return out, metadata, fmt.Errorf("unknown transport type %T", in.Request)
+	}
+
+	if m.EndpointResolver == nil {
+		return out, metadata, fmt.Errorf("expected endpoint resolver to not be nil")
+	}
+
+	params := EndpointParameters{}
+
+	m.BuiltInResolver.ResolveBuiltIns(&params)
+
+	params.Bucket = input.Bucket
+
+	var resolvedEndpoint smithyendpoints.Endpoint
+	resolvedEndpoint, err = m.EndpointResolver.ResolveEndpoint(ctx, params)
+	if err != nil {
+		return out, metadata, fmt.Errorf("failed to resolve service endpoint, %w", err)
+	}
+
+	req.URL = &resolvedEndpoint.URI
+
+	for k := range resolvedEndpoint.Headers {
+		req.Header.Set(
+			k,
+			resolvedEndpoint.Headers.Get(k),
+		)
+	}
+
+	authSchemes, err := internalauth.GetAuthenticationSchemes(&resolvedEndpoint.Properties)
+	if err != nil {
+		var nfe *internalauth.NoAuthenticationSchemesFoundError
+		if errors.As(err, &nfe) {
+			// if no auth scheme is found, default to sigv4
+			signingName := "s3"
+			signingRegion := m.BuiltInResolver.(*builtInResolver).Region
+			ctx = awsmiddleware.SetSigningName(ctx, signingName)
+			ctx = awsmiddleware.SetSigningRegion(ctx, signingRegion)
+			ctx = s3cust.SetSignerVersion(ctx, internalauth.SigV4)
+		}
+		var ue *internalauth.UnSupportedAuthenticationSchemeSpecifiedError
+		if errors.As(err, &ue) {
+			return out, metadata, fmt.Errorf(
+				"This operation requests signer version(s) %v but the client only supports %v",
+				ue.UnsupportedSchemes,
+				internalauth.SupportedSchemes,
+			)
+		}
+	}
+
+	for _, authScheme := range authSchemes {
+		switch authScheme.(type) {
+		case *internalauth.AuthenticationSchemeV4:
+			v4Scheme, _ := authScheme.(*internalauth.AuthenticationSchemeV4)
+			var signingName, signingRegion string
+			if v4Scheme.SigningName == nil {
+				signingName = "s3"
+			} else {
+				signingName = *v4Scheme.SigningName
+			}
+			if v4Scheme.SigningRegion == nil {
+				signingRegion = m.BuiltInResolver.(*builtInResolver).Region
+			} else {
+				signingRegion = *v4Scheme.SigningRegion
+			}
+			if v4Scheme.DisableDoubleEncoding != nil {
+				// The signer sets an equivalent value at client initialization time.
+				// Setting this context value will cause the signer to extract it
+				// and override the value set at client initialization time.
+				ctx = internalauth.SetDisableDoubleEncoding(ctx, *v4Scheme.DisableDoubleEncoding)
+			}
+			ctx = awsmiddleware.SetSigningName(ctx, signingName)
+			ctx = awsmiddleware.SetSigningRegion(ctx, signingRegion)
+			ctx = s3cust.SetSignerVersion(ctx, v4Scheme.Name)
+			break
+		case *internalauth.AuthenticationSchemeV4A:
+			v4aScheme, _ := authScheme.(*internalauth.AuthenticationSchemeV4A)
+			if v4aScheme.SigningName == nil {
+				v4aScheme.SigningName = aws.String("s3")
+			}
+			if v4aScheme.DisableDoubleEncoding != nil {
+				// The signer sets an equivalent value at client initialization time.
+				// Setting this context value will cause the signer to extract it
+				// and override the value set at client initialization time.
+				ctx = internalauth.SetDisableDoubleEncoding(ctx, *v4aScheme.DisableDoubleEncoding)
+			}
+			ctx = awsmiddleware.SetSigningName(ctx, *v4aScheme.SigningName)
+			ctx = awsmiddleware.SetSigningRegion(ctx, v4aScheme.SigningRegionSet[0])
+			ctx = s3cust.SetSignerVersion(ctx, v4a.Version)
+			break
+		case *internalauth.AuthenticationSchemeNone:
+			break
+		}
+	}
+
+	return next.HandleSerialize(ctx, in)
+}
+
+func addGetObjectResolveEndpointMiddleware(stack *middleware.Stack, options Options) error {
+	return stack.Serialize.Insert(&opGetObjectResolveEndpointMiddleware{
+		EndpointResolver: options.EndpointResolverV2,
+		BuiltInResolver: &builtInResolver{
+			Region:                         options.Region,
+			UseFIPS:                        options.EndpointOptions.UseFIPSEndpoint,
+			UseDualStack:                   options.EndpointOptions.UseDualStackEndpoint,
+			Endpoint:                       options.BaseEndpoint,
+			ForcePathStyle:                 options.UsePathStyle,
+			Accelerate:                     options.UseAccelerate,
+			DisableMultiRegionAccessPoints: options.DisableMultiRegionAccessPoints,
+			UseArnRegion:                   options.UseARNRegion,
+		},
+	}, "ResolveEndpoint", middleware.After)
+}