satdress/lnurl.go

69 lines
1.7 KiB
Go

package main
import (
"encoding/json"
"fmt"
"net/http"
"strconv"
"github.com/fiatjaf/go-lnurl"
"github.com/gorilla/mux"
)
func handleLNURL(w http.ResponseWriter, r *http.Request) {
username := mux.Vars(r)["username"]
params, err := GetName(username)
if err != nil {
log.Error().Err(err).Str("name", username).Msg("failed to get name")
json.NewEncoder(w).Encode(lnurl.ErrorResponse(fmt.Sprintf(
"failed to get name %s", username)))
return
}
log.Info().Str("username", username).Msg("got lnurl request")
if amount := r.URL.Query().Get("amount"); amount == "" {
// check if the receiver accepts comments
var commentLength int64 = 0
// TODO: support webhook comments
json.NewEncoder(w).Encode(lnurl.LNURLPayResponse1{
LNURLResponse: lnurl.LNURLResponse{Status: "OK"},
Callback: fmt.Sprintf("https://%s/.well-known/lnurlp/%s", s.Domain, username),
MinSendable: 1000,
MaxSendable: 100000000,
EncodedMetadata: makeMetadata(params),
CommentAllowed: commentLength,
Tag: "payRequest",
})
} else {
msat, err := strconv.Atoi(amount)
if err != nil {
json.NewEncoder(w).Encode(lnurl.ErrorResponse("amount is not integer"))
return
}
bolt11, err := makeInvoice(params, msat, nil)
if err != nil {
json.NewEncoder(w).Encode(
lnurl.ErrorResponse("failed to create invoice: " + err.Error()))
return
}
json.NewEncoder(w).Encode(lnurl.LNURLPayResponse2{
LNURLResponse: lnurl.LNURLResponse{Status: "OK"},
PR: bolt11,
Routes: make([][]lnurl.RouteInfo, 0),
Disposable: lnurl.FALSE,
SuccessAction: lnurl.Action("Payment received!", ""),
})
// send webhook
go func() {
// TODO
}()
}
}