From 22e9316a7d3c921ec9eecf7d001ef8af41b88cac Mon Sep 17 00:00:00 2001
From: Su Yang <soulteary@gmail.com>
Date: Sun, 27 Oct 2024 22:54:47 +0800
Subject: [PATCH] feat: magnet hash key,
 https://github.com/ziahamza/webui-aria2/pull/468

---
 src/js/ctrls/modal.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/js/ctrls/modal.js b/src/js/ctrls/modal.js
index 5446f7c..7f22647 100644
--- a/src/js/ctrls/modal.js
+++ b/src/js/ctrls/modal.js
@@ -106,6 +106,20 @@ export default angular
             .filter(function(d) {
               return d.length;
             })
+            .map(function(u) {
+              /// transform bt-key into legal magnet link
+              /// support BASE32 encoding key string or HEX encoding key string
+              var str = _.toUpper(u[0]);
+              var hashkey = _.head(_.split(str, "&")); //maybe url contains additional attribute  such as dn/tr
+              const base32Regex = /^[2-7 | A-Z]{32}$/;
+              const hexRegex = /^[0-9 | A-Z]{40}$/;
+              if (base32Regex.test(hashkey) || hexRegex.test(hashkey)) {
+                u[0] = "magnet:?xt=urn:btih:" + u[0];
+                // if hashkey is legal bt-hashkey string then add protocol's head
+                // only support 32-bit length HEX encoding string or 40-bit length BASE32 length encoding string
+              }
+              return u;
+            })
             .value();
         }
       };