mirror of
https://github.com/fiatjaf/nak.git
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38 lines
1.1 KiB
Go
38 lines
1.1 KiB
Go
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package main
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import (
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"encoding/json"
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"fmt"
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"github.com/nbd-wtf/go-nostr"
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"github.com/urfave/cli/v2"
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)
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var verify = &cli.Command{
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Name: "verify",
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Usage: "checks the hash and signature of an event given through stdin",
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Description: `example:
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echo '{"id":"a889df6a387419ff204305f4c2d296ee328c3cd4f8b62f205648a541b4554dfb","pubkey":"c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee5","created_at":1698623783,"kind":1,"tags":[],"content":"hello from the nostr army knife","sig":"84876e1ee3e726da84e5d195eb79358b2b3eaa4d9bd38456fde3e8a2af3f1cd4cda23f23fda454869975b3688797d4c66e12f4c51c1b43c6d2997c5e61865661"}' | nak verify
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it outputs nothing if the verification is successful.
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`,
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Action: func(c *cli.Context) error {
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evt := nostr.Event{}
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if stdinEvent := getStdin(); stdinEvent != "" {
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if err := json.Unmarshal([]byte(stdinEvent), &evt); err != nil {
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return fmt.Errorf("invalid JSON: %w", err)
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}
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}
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if evt.GetID() != evt.ID {
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return fmt.Errorf("invalid .id, expected %s, got %s", evt.GetID(), evt.ID)
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}
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if ok, err := evt.CheckSignature(); !ok {
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return fmt.Errorf("invalid signature: %w", err)
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}
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return nil
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},
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}
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