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37 lines
936 B
37 lines
936 B
package event |
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import ( |
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"crypto.orly/sha256" |
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"encoders.orly/hex" |
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"encoders.orly/ints" |
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"encoders.orly/text" |
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) |
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// ToCanonical converts the event to the canonical encoding used to derive the |
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// event ID. |
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func (ev *E) ToCanonical(dst []byte) (b []byte) { |
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b = dst |
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b = append(b, "[0,\""...) |
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b = hex.EncAppend(b, ev.Pubkey) |
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b = append(b, "\","...) |
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b = ints.New(ev.CreatedAt).Marshal(b) |
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b = append(b, ',') |
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b = ints.New(ev.Kind).Marshal(b) |
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b = append(b, ',') |
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b = ev.Tags.Marshal(b) |
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b = append(b, ',') |
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b = text.AppendQuote(b, ev.Content, text.NostrEscape) |
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b = append(b, ']') |
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// log.D.F("canonical: %s", b) |
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return |
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} |
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// GetIDBytes returns the raw SHA256 hash of the canonical form of an event.E. |
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func (ev *E) GetIDBytes() []byte { return Hash(ev.ToCanonical(nil)) } |
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// Hash is a little helper generate a hash and return a slice instead of an |
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// array. |
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func Hash(in []byte) (out []byte) { |
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h := sha256.Sum256(in) |
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return h[:] |
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}
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