{
  "name": "small_pdf1.pdf",
  "lume_id": "9507193e-572d-4f95-bcf1-e9226d96be65",
  "elements": [
    {
      "element_type": "__elem__image",
      "element_id": "859d09c4-7cf1-4a37-9674-3a7de8b56abc",
      "attributes": {
        "__attr__image_dpi": 300,
        "__attr__image_size": [
          2550,
          3299
        ],
        "__attr__image_index": 1,
        "__attr__image_format": "JPEG",

	if err != nil {
		// We start off with '0' if we can read the attributes
		return 0
	}
	return binary.LittleEndian.Uint64(buf[:8])
}

func (s *xlStorage) getWriteAttribute() uint64 {
	attr := "user.total_writes"
	buf, err := xattr.LGet(s.formatFile, attr)
	if err != nil {
		// We start off with '0' if we can read the attributes
		return 0
	}

	return binary.LittleEndian.Uint64(buf[:8])
}

		// GetObjectAttributes
		router.Methods(http.MethodGet).Path("/{object:.+}").
			HandlerFunc(s3APIMiddleware(api.GetObjectAttributesHandler, traceHdrsS3HFlag)).
			Queries("attributes", "")

		// CopyObjectPart
		router.Methods(http.MethodPut).Path("/{object:.+}").
			HeadersRegexp(xhttp.AmzCopySource, ".*?(\\/|%2F).*?").
			HandlerFunc(s3APIMiddleware(api.CopyObjectPartHandler)).

```
~ mc admin config set myminio identity_openid config_url="http://CASDOOR_ENDPOINT/.well-known/openid-configuration" client_id=<client id> client_secret=<client secret> claim_name="tag"
```

> NOTE: As MinIO needs to use a claim attribute in JWT for its policy, you should configure it in casdoor as well. Currently, casdoor uses `tag` as a workaround for configuring MinIO's policy.

Once successfully set restart the MinIO instance.

```

	UserDefined         map[string]string   // only set in case of POST/PUT operations
	ObjectAttributes    map[string]struct{} // Attribute tags defined by the users for the GetObjectAttributes request
	MaxParts            int                 // used in GetObjectAttributes. Signals how many parts we should return

// server may not be equal to the input DN, as LDAP equality is not a simple
// Golang string equality. However, we assume the value returned by the LDAP
// server is canonical. Additionally, the attribute type names in the DN are
// lower-cased.
//
// Return values:
//
// If the DN is found, the normalized (string) value is returned and error is
// nil.
//

	}

	formValues.Set("Bucket", bucket)
	if fileName != "" && strings.Contains(formValues.Get("Key"), "${filename}") {
		// S3 feature to replace ${filename} found in Key form field
		// by the filename attribute passed in multipart
		formValues.Set("Key", strings.ReplaceAll(formValues.Get("Key"), "${filename}", fileName))
	}
	object := trimLeadingSlash(formValues.Get("Key"))

			valid = false
			return
		}
	}

	return
}

func parseObjectAttributes(h http.Header) (attributes map[string]struct{}) {
	attributes = make(map[string]struct{})
	for _, v := range strings.Split(strings.TrimSpace(h.Get(xhttp.AmzObjectAttributes)), ",") {
		if v != "" {
			attributes[v] = struct{}{}
		}
	}

	return
}

	ErrAccessTokenExpired = errors.New("access_token expired or unauthorized")
)

// Provider implements identity provider specific admin operations, such as
// looking up users, fetching additional attributes etc.
type Provider interface {
	LoginWithUser(username, password string) error
	LoginWithClientID(clientID, clientSecret string) error
	LookupUser(userid string) (User, error)

	AmzMaxParts             = "X-Amz-Max-Parts"
	AmzPartNumberMarker     = "X-Amz-Part-Number-Marker"

	// Constants used for GetObjectAttributes and GetObjectVersionAttributes
	AmzObjectAttributes = "X-Amz-Object-Attributes"

	AmzMetaUnencryptedContentLength = "X-Amz-Meta-X-Amz-Unencrypted-Content-Length"
	AmzMetaUnencryptedContentMD5    = "X-Amz-Meta-X-Amz-Unencrypted-Content-Md5"