95 lines
2.3 KiB
Go
95 lines
2.3 KiB
Go
package main
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import (
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"flag"
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//"github.com/nbd-wtf/go-nostr"
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//"github.com/nbd-wtf/go-nostr/nip19"
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"fiatjaf.com/nostr"
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"fiatjaf.com/nostr/nip19"
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"log"
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"os"
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"strconv"
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"strings"
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)
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type Config struct {
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Port int
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NSec string
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NPub string
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Relays []string
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}
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func check(e error) {
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if e != nil {
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log.Fatal("Fatal: %s", e)
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}
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}
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func LoadConfig() *Config {
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var nsecfile string
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var config Config
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var portarg int
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var nsecarg string
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var npubarg string
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var relayargs string
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flag.IntVar(&portarg, "port", 49160, "HTTP listen port. Defaults to 49160/TCP. Can be set through WEBHOOK_PORT env")
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flag.StringVar(&nsecarg, "nsec", "", "Path to file containing bech32-encoded nsec. Can be set through NOSTR_NSEC_FILE env or generated on first run")
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flag.StringVar(&npubarg, "npub", "", "Bech32-encoded npub of the account who will receive notifications. Can be set through NOSTR_NPUB env. You can also set a by alert target by setting the \"npub\" label on the alert properties.")
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flag.StringVar(&relayargs, "relays", "", "Comma separated list of relays you want to send your notifications to. Can be set through NOSTR_RELAYS env.")
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flag.Parse()
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port, ok := os.LookupEnv("WEBHOOK_PORT")
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if ok {
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port, err := strconv.Atoi(port)
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check(err)
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config.Port = port
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} else {
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config.Port = portarg
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}
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nsecvar, ok := os.LookupEnv("NOSTR_NSEC_FILE")
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if ok {
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nsecfile = nsecvar
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}
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if nsecarg != "" {
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nsecfile = nsecarg
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}
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if nsecfile != "" {
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data, err := os.ReadFile(nsecfile)
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check(err)
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nsec := strings.TrimSpace(string(data))
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prefix, decoded, err := nip19.Decode(nsec)
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sk := decoded.(nostr.SecretKey)
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check(err)
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if prefix != "nsec" {
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log.Fatalf("not an nsec, got %s", prefix)
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}
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pk := nostr.GetPublicKey(sk)
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npub := nip19.EncodeNpub(pk)
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log.Printf("Loading private key from file %s. Will send alerts from %s", nsecfile, npub)
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config.NSec = nsec
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} else {
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sk := nostr.Generate()
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pk := nostr.GetPublicKey(sk)
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nsec := nip19.EncodeNsec(sk)
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npub := nip19.EncodeNpub(pk)
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log.Printf("Using random private key. Will send alerts from %s", npub)
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config.NSec = nsec
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}
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npub, ok := os.LookupEnv("NOSTR_NPUB")
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if ok {
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config.NPub = npub
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} else {
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config.NPub = npubarg
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}
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relays, ok := os.LookupEnv("NOSTR_RELAYS")
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if ok {
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config.Relays = strings.Split(relays, ",")
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}
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return &config
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}
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