From 68d86fe46b8182a043cfc31bac5ca42f2b52e622 Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor@ccxvii.net>
Date: Thu, 14 Mar 2024 17:17:33 +0100
Subject: Use fetch API for sending webhooks.

The Node https module started getting timeouts and not closing down
after req.end for reasons unknown to me. Let's take this moment as an
opportunity to move to the new fetch API instead.
---
 server.js | 45 ++++++++++-----------------------------------
 1 file changed, 10 insertions(+), 35 deletions(-)

diff --git a/server.js b/server.js
index dcc6208..56a3413 100644
--- a/server.js
+++ b/server.js
@@ -5,7 +5,6 @@
 const fs = require("fs")
 const crypto = require("crypto")
 const http = require("http")
-const https = require("https") // for webhook requests
 const { WebSocketServer } = require("ws")
 const express = require("express")
 const url = require("url")
@@ -2278,19 +2277,11 @@ function mail_verification_token(user, token) {
  */
 
 const webhook_json_options = {
-	method: "POST",
-	timeout: 6000,
-	headers: {
-		"Content-Type": "application/json"
-	}
+	"Content-Type": "application/json"
 }
 
 const webhook_text_options = {
-	method: "POST",
-	timeout: 6000,
-	headers: {
-		"Content-Type": "text/plain"
-	}
+	"Content-Type": "text/plain"
 }
 
 function on_webhook_success(user_id) {
@@ -2302,38 +2293,22 @@ function on_webhook_error(user_id, error) {
 	SQL_UPDATE_WEBHOOK_ERROR.run(error, user_id)
 }
 
-function send_webhook(user_id, webhook, message, retry=2) {
+async function send_webhook(user_id, webhook, message, retry=2) {
 	if (!WEBHOOKS)
 		return
 	try {
 		const text = webhook.prefix + " " + message
 		const data = webhook.format ? JSON.stringify({ [webhook.format]: text }) : text
-		const options = webhook.format ? webhook_json_options : webhook_text_options
-		const req = https.request(webhook.url, options, res => {
-			if (res.statusCode === 200 || res.statusCode === 204)
-				on_webhook_success(user_id)
-			else {
-				if (retry > 0)
-					retry_webhook(user_id, webhook, message, retry - 1)
-				else
-					on_webhook_error(user_id, res.statusCode + " " + http.STATUS_CODES[res.statusCode])
-			}
-		})
-		req.on("timeout", () => {
+		const headers = webhook.format ? webhook_json_options : webhook_text_options
+		const res = await fetch(webhook.url, { method: "POST", headers: headers, body: data })
+		if (res.ok)
+			on_webhook_success(user_id)
+		else {
 			if (retry > 0)
 				retry_webhook(user_id, webhook, message, retry - 1)
 			else
-				on_webhook_error(user_id, "Timeout")
-			req.abort()
-		})
-		req.on("error", (err) => {
-			if (retry > 0)
-				retry_webhook(user_id, webhook, message, retry - 1)
-			else
-				on_webhook_error(user_id, err.toString())
-		})
-		req.write(data)
-		req.end()
+				on_webhook_error(user_id, res.status + ": " + res.statusText)
+		}
 	} catch (err) {
 		if (retry > 0)
 			retry_webhook(user_id, webhook, message, retry - 1)
-- 
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