From f03fcf3fcf28958366a1e16e7128d0adc5c84b51 Mon Sep 17 00:00:00 2001
From: Dmitry Verkhoturov <paskal.07@gmail.com>
Date: Wed, 16 Feb 2022 01:25:30 +0100
Subject: [PATCH] make QR for telegram borderless

---
 backend/app/rest/api/rest_public.go       |   8 +++++++-
 backend/app/rest/api/testdata/qr_test.png | Bin 430 -> 468 bytes
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/backend/app/rest/api/rest_public.go b/backend/app/rest/api/rest_public.go
index eb173edf..f925dc47 100644
--- a/backend/app/rest/api/rest_public.go
+++ b/backend/app/rest/api/rest_public.go
@@ -384,7 +384,13 @@ func (s *public) telegramQrCtrl(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	png, err := qrcode.Encode(text, qrcode.Medium, 256)
+	q, err := qrcode.New(text, qrcode.Medium)
+	if err != nil {
+		rest.SendErrorJSON(w, r, http.StatusInternalServerError, err, "can't generate QR", rest.ErrInternal)
+		return
+	}
+	q.DisableBorder = true
+	png, err := q.PNG(256)
 	if err != nil {
 		rest.SendErrorJSON(w, r, http.StatusInternalServerError, err, "can't generate QR", rest.ErrInternal)
 		return
diff --git a/backend/app/rest/api/testdata/qr_test.png b/backend/app/rest/api/testdata/qr_test.png
index 66bf2a0839b48f92d48460784edbebb4c1fa2d74..be6b7eb42fce2fc2a5a752aa7d2d83cf71df5866 100644
GIT binary patch
delta 424
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S!jx_R0000<MNUMnLSTYh566Z8

delta 385
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