From 2c631b297396207ebc54c406a13a88af417f51a8 Mon Sep 17 00:00:00 2001
From: Andrew Developer <slider7259@gmail.com>
Date: Thu, 23 Mar 2017 15:34:33 +0300
Subject: [PATCH] Added webhook example with Tornado

---
 .../webhook_tornado_echo_bot.py               | 94 +++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 examples/webhook_examples/webhook_tornado_echo_bot.py

diff --git a/examples/webhook_examples/webhook_tornado_echo_bot.py b/examples/webhook_examples/webhook_tornado_echo_bot.py
new file mode 100644
index 0000000..538b7b9
--- /dev/null
+++ b/examples/webhook_examples/webhook_tornado_echo_bot.py
@@ -0,0 +1,94 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# This example shows webhook echo bot with Tornado web framework
+# Documenation to Tornado: http://tornadoweb.org
+
+import telebot
+import tornado.web
+import tornado.ioloop
+import tornado.httpserver
+import tornado.options
+import signal
+
+API_TOKEN = '<api_token>'
+WEBHOOK_CERT = "./cert.pem"
+WEBHOOK_PKEY = "./pkey.pem"
+WEBHOOK_HOST = "<domain_or_ip>"
+WEBHOOK_SECRET = "<secret_uri_for_updates"
+WEBHOOK_PORT = 88
+WEBHOOK_URL_BASE = "https://{0}:{1}/{2}".format(WEBHOOK_HOST, str(WEBHOOK_PORT), WEBHOOK_SECRET)
+
+# Quick'n'dirty SSL certificate generation:
+#
+# openssl genrsa -out pkey.pem 2048
+# openssl req -new -x509 -days 3650 -key pkey.pem -out cert.pem
+#
+# When asked for "Common Name (e.g. server FQDN or YOUR name)" you should reply
+# with the same value in you put in WEBHOOK_HOST
+
+bot = telebot.TeleBot(API_TOKEN)
+
+class Root(tornado.web.RequestHandler):
+    def get(self):
+        self.write("Hi! This is webhook example!")
+        self.finish()
+
+class webhook_serv(tornado.web.RequestHandler):
+    def get(self):
+        self.write("What are you doing here?")
+        self.finish()
+    def post(self):
+        if "Content-Length" in self.request.headers and \
+            "Content-Type" in self.request.headers and \
+            self.request.headers['Content-Type'] == "application/json":
+
+            # length = int(self.request.headers['Content-Length'])
+            json_data = self.request.body.decode("utf-8")
+            update = telebot.types.Update.de_json(json_data)
+            bot.process_new_updates([update])
+            self.write("")
+            self.finish()
+        else:
+            self.write("What are you doing here?")
+            self.finish()
+ 
+tornado.options.define("port", default=WEBHOOK_PORT, help="run on the given port", type=int)
+is_closing = False
+def signal_handler(signum, frame):
+    global is_closing
+    print("Exiting...")
+    is_closing = True
+
+def try_exit():
+    global is_closing
+    if is_closing:
+        # clean up here
+        tornado.ioloop.IOLoop.instance().stop()
+        print("Exit success!")
+        
+# Handle '/start' and '/help'
+@bot.message_handler(commands=['help', 'start'])
+def send_welcome(message):
+    bot.reply_to(message,
+                 ("Hi there, I am EchoBot.\n"
+                  "I am here to echo your kind words back to you."))
+
+bot.remove_webhook()
+bot.set_webhook(url=WEBHOOK_URL_BASE,
+                certificate=open(WEBHOOK_CERT, 'r'))
+tornado.options.options.logging = None
+tornado.options.parse_command_line()
+signal.signal(signal.SIGINT, signal_handler)
+application = tornado.web.Application([
+    (r"/", Root),
+    (r"/" + WEBHOOK_SECRET, webhook_serv)
+])
+
+http_server = tornado.httpserver.HTTPServer(application, ssl_options={
+        "certfile": WEBHOOK_CERT,
+        "keyfile": WEBHOOK_PKEY,
+    })
+http_server.listen(tornado.options.options.port)
+tornado.ioloop.PeriodicCallback(try_exit, 100).start()
+tornado.ioloop.IOLoop.instance().start()