feat: telegram bot TelegramSettings && webhook (#244)

* feat: telegram bot TelegramSettings

* feat: webhook

worker/src/email/index.ts

@@ -0,0 +1,51 @@
+import { Context } from "hono";
+
+import { sendMailToTelegram } from "../telegram_api";
+import { Bindings } from "../types";
+import { auto_reply } from "./auto_reply";
+import { trigerWebhook } from "../mails_api/webhook_settings";
+
+
+async function email(message: ForwardableEmailMessage, env: Bindings, ctx: ExecutionContext) {
+    if (env.BLACK_LIST && env.BLACK_LIST.split(",").some(word => message.from.includes(word))) {
+        message.setReject("Missing from address");
+        console.log(`Reject message from ${message.from} to ${message.to}`);
+        return;
+    }
+    const rawEmail = await new Response(message.raw).text();
+    const message_id = message.headers.get("Message-ID");
+    // save email
+    const { success } = await env.DB.prepare(
+        `INSERT INTO raw_mails (source, address, raw, message_id) VALUES (?, ?, ?, ?)`
+    ).bind(
+        message.from, message.to, rawEmail, message_id
+    ).run();
+    if (!success) {
+        message.setReject(`Failed save message to ${message.to}`);
+        console.log(`Failed save message from ${message.from} to ${message.to}`);
+    }
+
+    // send email to telegram
+    try {
+        await sendMailToTelegram(
+            { env: env } as Context<{ Bindings: Bindings }>,
+            message.to, rawEmail);
+    } catch (error) {
+        console.log("send mail to telegram error", error);
+    }
+
+    // send webhook
+    try {
+        await trigerWebhook(
+            { env: env } as Context<{ Bindings: Bindings }>,
+            message.to, rawEmail
+        );
+    } catch (error) {
+        console.log("send webhook error", error);
+    }
+
+    // auto reply email
+    await auto_reply(message, env);
+}
+
+export { email }