From 672402616e85f48c074da93eecae04f14c38eca9 Mon Sep 17 00:00:00 2001
From: calle <93376500+callebtc@users.noreply.github.com>
Date: Tue, 3 May 2022 17:32:35 +0200
Subject: [PATCH] webln and image (#350)

---
 internal/api/userpage/static/userpage.html |  4 +++-
 internal/api/userpage/userpage.go          | 12 ++++++++----
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/internal/api/userpage/static/userpage.html b/internal/api/userpage/static/userpage.html
index 2fb00c6..6bcab74 100644
--- a/internal/api/userpage/static/userpage.html
+++ b/internal/api/userpage/static/userpage.html
@@ -7,10 +7,12 @@
 <meta property="og:title" content="Pay to {{.Username}}@ln.tips">
 <meta property="og:description" content="Send bitcoin to {{.Username}} over Lightning. Get your own Lightning address at https://ln.tips 👈">
 <meta property="og:type" content="article" />
-<meta property="og:image" content="https://github.com/LightningTipBot/LightningTipBot/raw/main/resources/send_to_card.png">
+<meta property="og:image" content="{{.Image}}">
 <meta property="og:url" content="https://ln.tips/@{{.Username}}">
 <meta name="twitter:card" content="summary_large_image">
 <meta name="twitter:image:alt" content="Pay to {{.Username}}@ln.tips">
+<meta name="lightning" content="lnurlp:{{.Username}}@ln.tips"/>
+
 <title>{{.Username}}@ln.tips</title>
 <script src="https://unpkg.com/kjua@0.6.0/dist/kjua.min.js"></script>
 <style>
diff --git a/internal/api/userpage/userpage.go b/internal/api/userpage/userpage.go
index 3ca5b3e..f6c6865 100644
--- a/internal/api/userpage/userpage.go
+++ b/internal/api/userpage/userpage.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"html/template"
 	"net/http"
+	"strings"
 	"time"
 
 	"github.com/LightningTipBot/LightningTipBot/internal"
@@ -26,6 +27,8 @@ func New(b *telegram.TipBot) Service {
 	}
 }
 
+const botImage = "https://avatars.githubusercontent.com/u/88730856?v=7"
+
 //go:embed static
 var templates embed.FS
 var tmpl = template.Must(template.ParseFS(templates, "static/userpage.html"))
@@ -65,7 +68,7 @@ func (s Service) getTelegramUserPictureURL(username string) (string, error) {
 
 func (s Service) UserPageHandler(w http.ResponseWriter, r *http.Request) {
 	// https://ln.tips/.well-known/lnurlp/<username>
-	username := mux.Vars(r)["username"]
+	username := strings.ToLower(mux.Vars(r)["username"])
 	callback := fmt.Sprintf("%s/.well-known/lnurlp/%s", internal.Configuration.Bot.LNURLHostName, username)
 	log.Infof("[UserPage] rendering page of %s", username)
 	lnurlEncode, err := lnurl.LNURLEncode(callback)
@@ -74,10 +77,11 @@ func (s Service) UserPageHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	image, err := s.getTelegramUserPictureURL(username)
-	if err != nil {
-		log.Errorln("[UserPage]", err)
-		image = "https://telegram.org/img/t_logo.png"
+	if err != nil || image == "https://telegram.org/img/t_logo.png" {
+		// replace the default image
+		image = botImage
 	}
+
 	if err := tmpl.ExecuteTemplate(w, "userpage", struct {
 		Username string
 		Image    string