From dc38913797c587499926ed292d296dcbf44ee627 Mon Sep 17 00:00:00 2001
From: Adam Soltys <asoltys@gmail.com>
Date: Wed, 22 Feb 2023 18:08:27 +0000
Subject: handle socket and lnurl lookup errors

---
 lib/sockets.js  |  2 ++
 routes/lnurl.js | 26 ++++++++++++++++----------
 2 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/lib/sockets.js b/lib/sockets.js
index 11d8ea9e..458c77a9 100644
--- a/lib/sockets.js
+++ b/lib/sockets.js
@@ -130,6 +130,8 @@ export async function socketServer(app) {
       }
     });
 
+    ws.on("error", console.log);
+
     ws.on("close", function(code, reason) {
       try {
         const uid = users[id];
diff --git a/routes/lnurl.js b/routes/lnurl.js
index c276d3cb..8d45d301 100644
--- a/routes/lnurl.js
+++ b/routes/lnurl.js
@@ -1,6 +1,6 @@
 import { g, s } from "$lib/db";
 import { l } from "$lib/logging";
-import { fail } from "$lib/utils";
+import { bail, fail } from "$lib/utils";
 import { v4 } from "uuid";
 import got from "got";
 import { generate } from "$lib/invoices";
@@ -19,8 +19,14 @@ export default {
   async encode({ query: { address } }, res) {
     let [name, domain] = address.split("@");
     let url = `https://${domain}/.well-known/lnurlp/${name}`;
-    let r = await got(url).json();
-    if (r.tag !== "payRequest") fail("not an ln address");
+    
+    try {
+      let r = await got(url).json();
+      if (r.tag !== "payRequest") fail("not an ln address");
+    } catch (e) {
+      return bail(res, "failed to lookup lightning address");
+    }
+
     let enc = bech32.encode("lnurl", bech32.toWords(Buffer.from(url)), 20000);
     res.send(enc);
   },
@@ -37,7 +43,7 @@ export default {
     let uid = await g(`user:${username.toLowerCase()}`);
     if (!uid) {
       let u = await got(`${classic}/admin/migrate/${username}?zero=true`, {
-        headers: { authorization: `Bearer ${admin}` }
+        headers: { authorization: `Bearer ${admin}` },
       }).json();
 
       if (!u) fail("user not found");
@@ -58,7 +64,7 @@ export default {
 
     let metadata = JSON.stringify([
       ["text/plain", `Paying ${username}@${host}`],
-      ["text/identifier", `${username}@${host}`]
+      ["text/identifier", `${username}@${host}`],
     ]);
 
     let id = v4();
@@ -69,7 +75,7 @@ export default {
       maxSendable: 100000000000,
       metadata,
       callback: `${URL}/api/lnurl/${id}`,
-      tag: "payRequest"
+      tag: "payRequest",
     });
   },
 
@@ -83,21 +89,21 @@ export default {
 
       let metadata = JSON.stringify([
         ["text/plain", `Paying ${username}@${host}`],
-        ["text/identifier", `${username}@${host}`]
+        ["text/identifier", `${username}@${host}`],
       ]);
 
       ({ text: pr } = await generate({
         invoice: {
           amount: Math.round(amount / 1000),
-          type: types.lightning
+          type: types.lightning,
         },
         memo: metadata,
-        user
+        user,
       }));
 
       await s(`lnurlp:${id}`, pr);
     }
 
     res.send({ pr, routes: [] });
-  }
+  },
 };
-- 
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