mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-28 00:38:51 +00:00
57 lines
1.3 KiB
Go
57 lines
1.3 KiB
Go
/*
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* Copyright (c)2019 ZeroTier, Inc.
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file in the project's root directory.
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*
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* Change Date: 2023-01-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2.0 of the Apache License.
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*/
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/****/
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package zerotier
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// This is copied from the LF code base to make JSON blob encoding uniform
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import (
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"encoding/json"
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"unicode/utf8"
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)
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// Blob is a byte array that serializes to a string or a base62 string prefixed by \b (binary)
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type Blob []byte
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// MarshalJSON returns this blob marshaled as a string using \b<base62> for non-UTF8 binary data.
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func (b Blob) MarshalJSON() ([]byte, error) {
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if utf8.Valid(b) {
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return json.Marshal(string(b))
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}
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return []byte("\"\\b" + Base62Encode(b) + "\""), nil
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}
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// UnmarshalJSON unmarshals this blob from a string or byte array.
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func (b *Blob) UnmarshalJSON(j []byte) error {
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var s string
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err := json.Unmarshal(j, &s)
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if err == nil {
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if len(s) == 0 {
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*b = nil
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} else if s[0] == '\b' {
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*b = Base62Decode(s[1:])
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return nil
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}
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*b = []byte(s)
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return nil
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}
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// Byte arrays are also accepted
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var bb []byte
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if json.Unmarshal(j, &bb) != nil {
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return err
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}
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*b = bb
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return nil
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}
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