0568e81701
This adds an implementation of node discovery via DNS TXT records to the go-ethereum library. The implementation doesn't match EIP-1459 exactly, the main difference being that this implementation uses separate merkle trees for tree links and ENRs. The EIP will be updated to match p2p/dnsdisc. To maintain DNS trees, cmd/devp2p provides a frontend for the p2p/dnsdisc library. The new 'dns' subcommands can be used to create, sign and deploy DNS discovery trees.
41 lines
838 B
Go
41 lines
838 B
Go
package cloudflare
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import (
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"encoding/json"
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"time"
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)
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// Duration implements json.Marshaler and json.Unmarshaler for time.Duration
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// using the fmt.Stringer interface of time.Duration and time.ParseDuration.
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type Duration struct {
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time.Duration
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}
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// MarshalJSON encodes a Duration as a JSON string formatted using String.
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func (d Duration) MarshalJSON() ([]byte, error) {
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return json.Marshal(d.Duration.String())
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}
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// UnmarshalJSON decodes a Duration from a JSON string parsed using time.ParseDuration.
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func (d *Duration) UnmarshalJSON(buf []byte) error {
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var str string
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err := json.Unmarshal(buf, &str)
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if err != nil {
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return err
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}
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dur, err := time.ParseDuration(str)
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if err != nil {
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return err
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}
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d.Duration = dur
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return nil
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}
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var (
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_ = json.Marshaler((*Duration)(nil))
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_ = json.Unmarshaler((*Duration)(nil))
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)
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