post3/todos/POST3-006-s3-handlers.md

POST3-006: S3 bucket and object handlers

Status: Done Priority: P1 Blocked by: POST3-005

Description

Implement all S3 HTTP request handlers that bridge the S3 REST API to the core Store API.

Acceptance Criteria

Bucket handlers (s3/handlers/buckets.rs)

• CreateBucket — PUT /{bucket} → 200 + Location header
• HeadBucket — HEAD /{bucket} → 200 or 404
• DeleteBucket — DELETE /{bucket} → 204 (409 if not empty)
• ListBuckets — GET / → 200 + XML

Object handlers (s3/handlers/objects.rs)

• PutObject — PUT /{bucket}/{key} → 200 + ETag header; reads x-amz-meta- from request headers
• GetObject — GET /{bucket}/{key} → 200 + body + ETag + Content-Type + Content-Length + Last-Modified + x-amz-meta- headers
• HeadObject — HEAD /{bucket}/{*key} → 200 + metadata headers (no body)
• DeleteObject — DELETE /{bucket}/{*key} → 204
• ListObjectsV2 — GET /{bucket}?list-type=2 → 200 + XML

Error handling

• NoSuchBucket → 404 + XML error
• NoSuchKey → 404 + XML error
• BucketAlreadyOwnedByYou → 409 + XML error
• BucketNotEmpty → 409 + XML error