From 871dc8406bc749989201fdd5084008cfce1d608c Mon Sep 17 00:00:00 2001
From: AyrisAI <ayris@ayris.tech>
Date: Thu, 14 May 2026 19:04:27 +0300
Subject: [PATCH] Add RFC 2047 MIME decoding for mail subjects

---
 app/api/webhooks/mail-signal/route.ts | 30 ++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/app/api/webhooks/mail-signal/route.ts b/app/api/webhooks/mail-signal/route.ts
index 0a2fe58..fc5ad06 100644
--- a/app/api/webhooks/mail-signal/route.ts
+++ b/app/api/webhooks/mail-signal/route.ts
@@ -7,6 +7,29 @@ import { sendTelegramNotification } from '@/lib/notifications';
 const WEBHOOK_SECRET = 'besiktasK1903*';
 const IMAP_PASSWORD = process.env.MAILCOW_MASTER_PASSWORD || ''; // Dovecot Master Password tavsiye edilir
 
+// RFC 2047 Decode Fonksiyonu
+function decodeMimeText(text: string) {
+  if (!text) return text;
+  
+  // Eğer metin =? ile başlıyorsa decode etmeye çalış
+  return text.replace(/=\?([^?]+)\?([QB])\?([^?]+)\?=/gi, (match, charset, encoding, data) => {
+    try {
+      if (encoding.toUpperCase() === 'Q') {
+        // Quoted-Printable decode
+        return data
+          .replace(/_/g, ' ')
+          .replace(/=([0-9A-F]{2})/gi, (_: any, hex: string) => String.fromCharCode(parseInt(hex, 16)));
+      } else if (encoding.toUpperCase() === 'B') {
+        // Base64 decode
+        return Buffer.from(data, 'base64').toString(charset.toLowerCase() === 'utf-8' ? 'utf8' : 'binary');
+      }
+    } catch (e) {
+      return match;
+    }
+    return match;
+  });
+}
+
 export async function POST(request: Request) {
   const secret = request.headers.get('x-ayristech-secret');
 
@@ -17,7 +40,8 @@ export async function POST(request: Request) {
   const body = await request.json();
   const { to, event, subject: incomingSubject, snippet: incomingSnippet, from: incomingFrom } = body;
 
-  console.log(`📩 Webhook Sinyali Alındı! Alıcı: ${to}`);
+  const subject = decodeMimeText(incomingSubject || "");
+  console.log(`📩 Webhook Sinyali Alındı! Alıcı: ${to} | Konu: ${subject}`);
 
   try {
     // 1. Mailbox Mapping kontrolü
@@ -35,9 +59,9 @@ export async function POST(request: Request) {
     let mailData = null;
 
     if (incomingSubject || incomingSnippet) {
-      console.log(`[Signal] İçerik worker'dan hazır geldi: ${incomingSubject}`);
+      console.log(`[Signal] İçerik worker'dan hazır geldi: ${subject}`);
       mailData = {
-        subject: incomingSubject || "(Konu Yok)",
+        subject: subject || "(Konu Yok)",
         text: incomingSnippet || "",
         from: incomingFrom || "Bilinmiyor"
       };