CLDSRV-1021: Evaluate the bucket policy against the copy source

[tcarmet]

CopyObject and UploadPartCopy evaluated the bucket policy for the copy source's read against the destination key instead of the source key. So a requester allowed to write to one prefix of a bucket could copy, and then read, objects under a prefix the bucket policy explicitly denies them reading. With this change, reading the copy source is authorized against the source bucket, key and version, the same as a direct GetObject.

[bert-e]

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[bert-e]

Incorrect fix version

The Fix Version/s in issue CLDSRV-1021 contains:

• None

Considering where you are trying to merge, I ignored possible hotfix versions and I expected to find:

• 9.3.23

• 9.4.8

• 9.5.0

Please check the Fix Version/s of CLDSRV-1021, or the target
branch of this pull request.

[codecov]

❌ 1 Tests Failed:

Tests completed	Failed	Passed	Skipped
8525	1	8524	0

View the full list of 1 ❄️ flaky test(s)

"before each" hook for "should retrieve a part that overwrote another part originally copied from an MPU"::GET object With default signature With PartNumber field uploadPartCopy overwrite "before each" hook for "should retrieve a part that overwrote another part originally copied from an MPU"

Flake rate in main: 100.00% (Passed 0 times, Failed 21 times)

Stack Traces | 30.4s run time

Connection timed out after 30000 ms

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