/
metadata.go
63 lines (50 loc) · 1.67 KB
/
metadata.go
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package sos
import (
"context"
"fmt"
"strings"
"github.com/aws/aws-sdk-go-v2/aws"
s3types "github.com/aws/aws-sdk-go-v2/service/s3/types"
)
const MetadataForbiddenCharset = `()<>@,;!:\\'&"/[]?_={} `
func (c *Client) AddObjectMetadata(ctx context.Context, bucket, key string, metadata map[string]string) error {
object, err := c.CopyObject(ctx, bucket, key)
if err != nil {
return err
}
if len(object.Metadata) == 0 {
object.Metadata = make(map[string]string)
}
for k, v := range metadata {
if strings.ContainsAny(k, MetadataForbiddenCharset) {
return fmt.Errorf("%s: invalid value", k)
}
object.Metadata[k] = v
}
_, err = c.S3Client.CopyObject(ctx, object)
return err
}
func (c *Client) AddObjectsMetadata(ctx context.Context, bucket, prefix string, metadata map[string]string, recursive bool) error {
return c.ForEachObject(ctx, bucket, prefix, recursive, func(o *s3types.Object) error {
return c.AddObjectMetadata(ctx, bucket, aws.ToString(o.Key), metadata)
})
}
func (c *Client) DeleteObjectMetadata(ctx context.Context, bucket, key string, mdKeys []string) error {
object, err := c.CopyObject(ctx, bucket, key)
if err != nil {
return err
}
for _, k := range mdKeys {
if _, ok := object.Metadata[k]; !ok {
return fmt.Errorf("key %q not found in current metadata", k)
}
delete(object.Metadata, k)
}
_, err = c.S3Client.CopyObject(ctx, object)
return err
}
func (c *Client) DeleteObjectsMetadata(ctx context.Context, bucket, prefix string, mdKeys []string, recursive bool) error {
return c.ForEachObject(ctx, bucket, prefix, recursive, func(o *s3types.Object) error {
return c.DeleteObjectMetadata(ctx, bucket, aws.ToString(o.Key), mdKeys)
})
}