package lightningpub import ( "encoding/json" "fmt" "io/ioutil" "net" "net/http" "git.devvul.com/asara/gologger" "git.devvul.com/asara/well-goknown/config" "github.com/jmoiron/sqlx" ) var ( DB *sqlx.DB ) type lnurlp struct { Tag string `json:"tag"` Callback string `json:"callback"` MaxSendable int64 `json:"maxSendable"` MinSendable int64 `json:"minSendable"` Metadata string `json:"metadata"` AllowsNostr bool `json:"allowsNostr"` NostrPubkey string `json:"nostrPubkey"` } func GetLnurlp(w http.ResponseWriter, r *http.Request) { l := gologger.Get(config.GetConfig().LogLevel).With().Caller().Logger() // normalize domain domain, _, err := net.SplitHostPort(r.Host) if err != nil { domain = r.Host } name := r.PathValue("name") var lnwallet string err = DB.QueryRow("SELECT wallet FROM lnwallets WHERE name=$1 AND domain=$2", name, domain).Scan(&lnwallet) if err != nil { l.Debug().Msgf("user (%s@%s) doesn't exist: %s", name, domain, err.Error()) http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound) return } //upstreamUrl := fmt.Sprintf("https://%s/api/guest/lnurl_pay/info?k1=%s", domain, lnwallet) upstreamUrl := fmt.Sprintf("https://%s/api/guest/lnurl_pay/info?k1=%s", domain, lnwallet) upstreamPayload, err := http.Get(upstreamUrl) if err != nil { l.Debug().Msgf("user (%s@%s) doesn't exist: %s", name, domain, err.Error()) http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound) return } defer upstreamPayload.Body.Close() body, err := ioutil.ReadAll(upstreamPayload.Body) if err != nil { l.Debug().Msgf("user (%s@%s) doesn't exist: %s", name, domain, err.Error()) http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound) return } lnurlpReturn := lnurlp{} err = json.Unmarshal(body, &lnurlpReturn) if err != nil { l.Debug().Msgf("user (%s@%s) doesn't exist: %s", name, domain, err.Error()) http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound) return } m := fmt.Sprintf("[[\"text/plain\", \"ln address payment to a user on the devvul server\"],[\"text/identifier\", \"%s@%s\"]]", name, domain) lnurlpReturn.Metadata = m ret, err := json.Marshal(lnurlpReturn) if err != nil { l.Debug().Msgf("user (%s@%s) doesn't exist: %s", name, domain, err.Error()) http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound) return } l.Debug().Msgf("returning lnwallet for %s@%s", name, domain) w.Header().Set("Content-Type", "application/json") w.WriteHeader(http.StatusOK) w.Write(ret) return }