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优化存储逻辑:为 WebDAV、Local 和 S3 增加 Exists 方法;调整图片处理逻辑以避免重复存储变体;新增调试日志以便于排查问题
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@@ -100,3 +100,18 @@ func (s *S3Storage) PublicURL(key string) (string, bool) {
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// 也可以生成签名 URL,但这里简单处理
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return "", false
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}
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func (s *S3Storage) Exists(ctx context.Context, key string) (bool, error) {
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_, err := s.client.HeadObject(ctx, &s3.HeadObjectInput{
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Bucket: aws.String(s.bucket),
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Key: aws.String(key),
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})
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if err != nil {
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// 判断是否为 404
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if strings.Contains(err.Error(), "NotFound") || strings.Contains(err.Error(), "404") {
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return false, nil
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}
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return false, err
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}
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return true, nil
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}
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