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package s3api
import (
"encoding/base64"
"fmt"
"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
)
// StoreSSECIVInMetadata stores the SSE-C IV in entry metadata as base64 encoded string
// Used by SSE-C for storing IV in entry.Extended
func StoreSSECIVInMetadata(metadata map[string][]byte, iv []byte) {
if len(iv) > 0 {
metadata[s3_constants.SeaweedFSSSEIV] = []byte(base64.StdEncoding.EncodeToString(iv))
}
}
// GetSSECIVFromMetadata retrieves the SSE-C IV from entry metadata
// Used by SSE-C for retrieving IV from entry.Extended
func GetSSECIVFromMetadata(metadata map[string][]byte) ([]byte, error) {
if ivBase64, exists := metadata[s3_constants.SeaweedFSSSEIV]; exists {
iv, err := base64.StdEncoding.DecodeString(string(ivBase64))
if err != nil {
return nil, fmt.Errorf("failed to decode SSE-C IV from metadata: %w", err)
}
return iv, nil
}
return nil, fmt.Errorf("SSE-C IV not found in metadata")
}
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