From 98a5dcdb8dfa236a6415e9ca67f35413899bea37 Mon Sep 17 00:00:00 2001
From: cliik <cliik@example.com>
Date: Fri, 24 Jun 2022 13:23:17 -0500
Subject: [PATCH] Show QR code for listener address

---
 Cargo.lock                   | 7 +++++++
 controller/Cargo.toml        | 1 +
 controller/src/controller.rs | 7 ++++++-
 controller/src/lib.rs        | 1 +
 4 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/Cargo.lock b/Cargo.lock
index 427fba74e..d920fe39a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1544,6 +1544,7 @@ dependencies = [
  "lazy_static",
  "log",
  "prettytable-rs",
+ "qr_code",
  "rand 0.7.3",
  "remove_dir_all 0.7.0",
  "ring",
@@ -2866,6 +2867,12 @@ dependencies = [
  "unicode-xid 0.2.2",
 ]
 
+[[package]]
+name = "qr_code"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5520fbcd7da152a449261c5a533a1c7fad044e9e8aa9528cfec3f464786c7926"
+
 [[package]]
 name = "quick-error"
 version = "1.2.3"
diff --git a/controller/Cargo.toml b/controller/Cargo.toml
index c56942327..b07a46204 100644
--- a/controller/Cargo.toml
+++ b/controller/Cargo.toml
@@ -29,6 +29,7 @@ url = "2.1"
 chrono = { version = "0.4.11", features = ["serde"] }
 easy-jsonrpc-mw = "0.5.4"
 lazy_static = "1"
+qr_code = "1.1.0"
 
 grin_wallet_util = { path = "../util", version = "5.2.0-alpha.1" }
 
diff --git a/controller/src/controller.rs b/controller/src/controller.rs
index 4952aff8e..3af87acf6 100644
--- a/controller/src/controller.rs
+++ b/controller/src/controller.rs
@@ -31,6 +31,7 @@ use grin_wallet_util::OnionV3Address;
 use hyper::body;
 use hyper::header::HeaderValue;
 use hyper::{Body, Request, Response, StatusCode};
+use qr_code::QrCode;
 use serde::{Deserialize, Serialize};
 use serde_json;
 use std::collections::HashMap;
@@ -351,7 +352,11 @@ where
 
 	warn!("HTTP Foreign listener started.");
 	if let Some(a) = address {
-		warn!("Slatepack Address is: {}", a);
+		let qr_string = match QrCode::new(a.to_string()) {
+			Ok(qr) => qr.to_string(false, 3),
+			Err(_) => "Failed to generate QR code!".to_string(),
+		};
+		warn!("Slatepack Address is: {}\n{}", a, qr_string);
 	}
 
 	api_thread
diff --git a/controller/src/lib.rs b/controller/src/lib.rs
index c910e11c8..58015544c 100644
--- a/controller/src/lib.rs
+++ b/controller/src/lib.rs
@@ -21,6 +21,7 @@ extern crate prettytable;
 extern crate log;
 #[macro_use]
 extern crate lazy_static;
+extern crate qr_code;
 use failure;
 use grin_wallet_api as apiwallet;
 use grin_wallet_config as config;