From d256834dd2ce0233de1037fe41e4fe92dfd22e91 Mon Sep 17 00:00:00 2001
From: NetworkCats <networkcatlol@gmail.com>
Date: Fri, 6 Mar 2026 05:27:49 +0800
Subject: [PATCH] feat: link ASN to bgp.tools page

---
 src/handlers.rs      | 10 +++++++---
 templates/index.html |  2 +-
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/handlers.rs b/src/handlers.rs
index 9747b09..3d36e33 100644
--- a/src/handlers.rs
+++ b/src/handlers.rs
@@ -37,6 +37,7 @@ struct IndexTemplate {
     site_domain: Arc<str>,
     css_version: u64,
     asn: String,
+    asn_number: Option<u32>,
     org: String,
     country: String,
     city: String,
@@ -182,10 +183,12 @@ fn wants_json(headers: &HeaderMap) -> bool {
         .is_some_and(|v| v.contains("application/json"))
 }
 
+fn asn_number(info: &IpInfo) -> Option<u32> {
+    info.asn.as_ref().and_then(|a| a.autonomous_system_number)
+}
+
 fn format_asn(info: &IpInfo) -> String {
-    info.asn
-        .as_ref()
-        .and_then(|a| a.autonomous_system_number)
+    asn_number(info)
         .map(|n| format!("AS{n}"))
         .unwrap_or_default()
 }
@@ -557,6 +560,7 @@ pub async fn root(
         site_domain: state.site_domain.clone(),
         css_version: static_assets::asset_version("style.css"),
         asn: format_asn(&info),
+        asn_number: asn_number(&info),
         org: format_org(&info).to_owned(),
         country: format_country(&info, locale).to_owned(),
         city: format_city(&info, locale).to_owned(),
diff --git a/templates/index.html b/templates/index.html
index 58eb10b..91014ae 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -39,7 +39,7 @@
         {% if !asn.is_empty() %}
         <tr>
           <th scope="row">{{ t_asn }}</th>
-          <td>{{ asn }}</td>
+          <td>{% if let Some(n) = asn_number %}<a href="https://bgp.tools/as/{{ n }}" target="_blank" rel="noopener noreferrer">{{ asn }}</a>{% else %}{{ asn }}{% endif %}</td>
         </tr>
         {% endif %}
         {% if !org.is_empty() %}