nak/verify.go

43 lines
1.3 KiB
Go

package main
import (
"context"
"github.com/fiatjaf/cli/v3"
"github.com/nbd-wtf/go-nostr"
)
var verify = &cli.Command{
Name: "verify",
Usage: "checks the hash and signature of an event given through stdin",
Description: `example:
echo '{"id":"a889df6a387419ff204305f4c2d296ee328c3cd4f8b62f205648a541b4554dfb","pubkey":"c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee5","created_at":1698623783,"kind":1,"tags":[],"content":"hello from the nostr army knife","sig":"84876e1ee3e726da84e5d195eb79358b2b3eaa4d9bd38456fde3e8a2af3f1cd4cda23f23fda454869975b3688797d4c66e12f4c51c1b43c6d2997c5e61865661"}' | nak verify
it outputs nothing if the verification is successful.`,
DisableSliceFlagSeparator: true,
Action: func(ctx context.Context, c *cli.Command) error {
for stdinEvent := range getStdinLinesOrArguments(c.Args()) {
evt := nostr.Event{}
if stdinEvent != "" {
if err := json.Unmarshal([]byte(stdinEvent), &evt); err != nil {
ctx = lineProcessingError(ctx, "invalid event: %s", err)
continue
}
}
if evt.GetID() != evt.ID {
ctx = lineProcessingError(ctx, "invalid .id, expected %s, got %s", evt.GetID(), evt.ID)
continue
}
if ok, err := evt.CheckSignature(); !ok {
ctx = lineProcessingError(ctx, "invalid signature: %v", err)
continue
}
}
exitIfLineProcessingError(ctx)
return nil
},
}