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niksis02
577470214d
Validate required signed headers for both Authorization-header SigV4 requests and presigned URLs. The required signed header set is now `host` plus every incoming header with the `x-amz-` prefix. During request reconstruction, signed headers and explicitly ignored headers are copied into the generated request used for signature verification. If an incoming `x-amz-*` header is present but missing from the client-provided `SignedHeaders`, return `AccessDenied` with a `HeadersNotSigned` field. The `host` header remains part of the canonical request and signed header calculation. Previously, a client could sign a request without an S3 control header and then add that header after signing. For example, a presigned `PUT` URL could be generated with only `host` signed, then the actual request could include an unsigned `X-Amz-Tagging` or `X-Amz-Copy-Source` header. Because the verifier reconstructed the request only from `SignedHeaders`, that extra header was omitted from signature calculation and could pass authentication even though it changed the request semantics. This is now rejected with `AccessDenied`. Expose v4 helper methods for checking required and ignored headers, and update canonical header signing so ignored headers can still be included when a client explicitly lists them in `SignedHeaders`, while `Authorization` remains excluded from signature calculation.
AWS SDK Go v2
This directory contains code from the AWS SDK Go v2 repository, modified in accordance with the Apache 2.0 License.
Description
The AWS SDK Go v2 is a collection of libraries and tools that enable developers to build applications that integrate with various AWS services. This directory and below contains modified code from the original repository, tailored to suit versitygw specific requirements.
License
The code in this directory is licensed under the Apache 2.0 License. Please refer to the LICENSE file for more information.