fallintoplace opened a new pull request, #1259:
URL: https://github.com/apache/iceberg-go/pull/1259

   Summary
   - validate S3/GCS/OSS URI authorities before turning locations into object 
keys
   - reject wrong-bucket and empty-key object paths instead of treating the 
bucket name as part of the key
   - run WalkDir roots through the same extractor so list operations reject the 
same bad authorities
   - add S3 and GCS regression coverage for extractor, write, and walk paths
   
   Why
   The old extractor removed the scheme and then tried to trim the configured 
bucket prefix. If the prefix did not match, a path like 
s3://other-bucket/data/file.parquet became the key 
other-bucket/data/file.parquet in the opened bucket. That makes reads, writes, 
and deletes land under a surprising key instead of failing early.
   
   Testing
   - go test ./io/gocloud -run 
'TestDefaultKeyExtractor|TestBlobFileIORejectsWrongBucketObjectPaths|TestBlobFileIOWalkDir'
 -count=1
   - go test ./io/gocloud -count=1
   - go test ./io -count=1
   - go run github.com/golangci/golangci-lint/v2/cmd/[email protected] run 
--timeout=10m ./io/gocloud
   - git diff --check
   


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