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Fix s3 checksum-mode
header in presigned requests
#4000
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Also update our presigned canary tests to do both PUT and GET and have extra headers included that aren't in the query string
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checksum-mode
header in presigned requests
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aajtodd
approved these changes
Feb 7, 2025
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Motivation and Context
Fixes a bug reported in awslabs/aws-sdk-rust#1253 with flexible checksum headers sneaking into presigned requests.
Description
Short circuit the closure that mutates the
checksum-mode
header when we detect that we are making a presigned request.Testing
Update our presigned canary tests to do both PUT and GET and have extra headers included that aren't in the query string that will expose this issue if there is a regression.
Checklist
.changelog
directory, specifying "aws-sdk-rust" in theapplies_to
key.By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.