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fix: enforce 5gb copy source object size threshold.

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Fixes #1896

Enforces the S3 `5 GiB` copy source size limit across the posix and azure
backends for `CopyObject` and `UploadPartCopy`, returning `InvalidRequest` when
the source object exceeds the threshold.

The limit is now configurable via `--copy-object-threshold`
(`VGW_COPY_OBJECT_THRESHOLD`, default 5 GiB).
A new `--mp-max-parts flag` (`VGW_MP_MAX_PARTS`, default `10000`) has been added to make multipart upload parts number limit configurable.

No integration test has been added, as GitHub Actions cannot reliably
handle large objects.
This commit is contained in:
niksis02
2026-03-31 22:44:03 +04:00
parent f6cd991d89
commit bbe246e8ec
17 changed files with 124 additions and 15 deletions
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extra/example.conf
+12
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@@ -147,6 +147,18 @@ ROOT_SECRET_ACCESS_KEY=
# strict validation checks.
#VGW_DISABLE_STRICT_BUCKET_NAMES=false
# The VGW_MP_MAX_PARTS option sets the maximum number of parts allowed in a
# single multipart upload. The S3 specification allows up to 10,000 parts per
# multipart upload. The default value of 10000 matches the AWS S3 maximum.
# Clients that attempt to upload more parts than this limit will receive an error.
#VGW_MP_MAX_PARTS=10000
# The VGW_COPY_OBJECT_THRESHOLD option sets the maximum allowed source object
# size in bytes for CopyObject and UploadPartCopy. Requests whose source
# object exceeds this threshold will be rejected with an error. The default
# value of 5368709120 (5 GiB) matches the AWS S3 'Copy' size limit.
#VGW_COPY_OBJECT_THRESHOLD=5368709120
###############
# Access Logs #
###############