feat: complete i18n support, telegram webhook, and security improvements

app/api/domains/route.ts

@@ -30,5 +30,13 @@ export async function POST(req: NextRequest) {
   if (!domain) return NextResponse.json({ error: "domain gerekli" }, { status: 400 });
 
   const result = await createDomain({ domain, description, mailboxes, quota, maxquota });
+  
+  if (result.ok && Array.isArray(result.data)) {
+    const hasError = result.data.some((item: any) => item.type === "error");
+    if (hasError) {
+      return NextResponse.json(result.data, { status: 400 });
+    }
+  }
+
   return NextResponse.json(result.data, { status: result.ok ? 200 : 502 });
 }

app/api/webhooks/mail/route.ts

@@ -0,0 +1,61 @@
+import { NextRequest, NextResponse } from "next/server";
+import { getUsers } from "@/lib/users";
+
+/**
+ * app/api/webhooks/mail/route.ts
+ * 
+ * Webhook endpoint for incoming mail notifications (e.g. from Rspamd or Mailcow).
+ * Sends notifications to Telegram based on the recipient email.
+ */
+
+export async function POST(req: NextRequest) {
+  try {
+    const data = await req.json();
+    
+    // Extract basic info from the incoming payload
+    const recipient = (data.to || data.rcpt || "").toLowerCase();
+    const sender = data.from || "Bilinmiyor";
+    const subject = data.subject || "(Konu Yok)";
+    
+    console.log(`[Mail Webhook] Yeni mail geldi: ${sender} -> ${recipient}`);
+
+    const users = getUsers();
+    const user = users.find(u => u.email.toLowerCase() === recipient);
+    const targetChatId = user?.telegramId;
+
+    if (targetChatId && process.env.TELEGRAM_BOT_TOKEN) {
+      const message = `🔔 *Yeni Mail!*\n\n*Kimden:* ${sender}\n*Konu:* ${subject}`;
+      
+      const telegramUrl = `https://api.telegram.org/bot${process.env.TELEGRAM_BOT_TOKEN}/sendMessage`;
+      
+      const res = await fetch(telegramUrl, {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+          chat_id: targetChatId,
+          text: message,
+          parse_mode: "Markdown",
+        }),
+      });
+
+      if (!res.ok) {
+        const errorText = await res.text();
+        console.error(`[Mail Webhook] Telegram API hatası: ${res.status} ${errorText}`);
+      } else {
+        console.log(`[Mail Webhook] Telegram bildirimi gönderildi: ${recipient}`);
+      }
+    } else {
+      if (!targetChatId) {
+        console.log(`[Mail Webhook] Alıcı için eşleşen Telegram ID bulunamadı: ${recipient}`);
+      }
+      if (!process.env.TELEGRAM_BOT_TOKEN) {
+        console.error("[Mail Webhook] TELEGRAM_BOT_TOKEN ayarlı değil!");
+      }
+    }
+
+    return NextResponse.json({ status: "ok" });
+  } catch (error: any) {
+    console.error(`[Mail Webhook] Hata: ${error.message}`);
+    return NextResponse.json({ error: "İşlem başarısız" }, { status: 500 });
+  }
+}