mirror of
https://github.com/python-telegram-bot/python-telegram-bot.git
synced 2024-11-22 23:27:49 +01:00
108 lines
3.4 KiB
Python
108 lines
3.4 KiB
Python
import logging
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from telegram import Update, NullHandler
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from future.utils import bytes_to_native_str
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from threading import Lock
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import json
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try:
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import BaseHTTPServer
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except ImportError:
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import http.server as BaseHTTPServer
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logging.getLogger(__name__).addHandler(NullHandler())
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class _InvalidPost(Exception):
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def __init__(self, http_code):
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self.http_code = http_code
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super(_InvalidPost, self).__init__()
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class WebhookServer(BaseHTTPServer.HTTPServer, object):
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def __init__(self, server_address, RequestHandlerClass, update_queue,
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webhook_path):
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super(WebhookServer, self).__init__(server_address,
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RequestHandlerClass)
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self.logger = logging.getLogger(__name__)
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self.update_queue = update_queue
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self.webhook_path = webhook_path
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self.is_running = False
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self.server_lock = Lock()
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self.shutdown_lock = Lock()
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def serve_forever(self, poll_interval=0.5):
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with self.server_lock:
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self.is_running = True
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self.logger.debug('Webhook Server started.')
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super(WebhookServer, self).serve_forever(poll_interval)
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self.logger.debug('Webhook Server stopped.')
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def shutdown(self):
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with self.shutdown_lock:
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if not self.is_running:
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self.logger.warn('Webhook Server already stopped.')
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return
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else:
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super(WebhookServer, self).shutdown()
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self.is_running = False
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# WebhookHandler, process webhook calls
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# Based on: https://github.com/eternnoir/pyTelegramBotAPI/blob/master/
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# examples/webhook_examples/webhook_cpython_echo_bot.py
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class WebhookHandler(BaseHTTPServer.BaseHTTPRequestHandler, object):
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server_version = 'WebhookHandler/1.0'
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def __init__(self, request, client_address, server):
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self.logger = logging.getLogger(__name__)
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super(WebhookHandler, self).__init__(request, client_address, server)
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def do_HEAD(self):
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self.send_response(200)
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self.end_headers()
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def do_GET(self):
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self.send_response(200)
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self.end_headers()
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def do_POST(self):
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self.logger.debug('Webhook triggered')
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try:
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self._validate_post()
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clen = self._get_content_len()
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except _InvalidPost as e:
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self.send_error(e.http_code)
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self.end_headers()
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else:
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buf = self.rfile.read(clen)
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json_string = bytes_to_native_str(buf)
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self.send_response(200)
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self.end_headers()
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self.logger.debug('Webhook received data: ' + json_string)
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update = Update.de_json(json.loads(json_string))
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self.logger.debug('Received Update with ID %d on Webhook' %
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update.update_id)
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self.server.update_queue.put(update)
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def _validate_post(self):
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if not (self.path == self.server.webhook_path and
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'content-type' in self.headers and
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self.headers['content-type'] == 'application/json'):
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raise _InvalidPost(403)
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def _get_content_len(self):
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clen = self.headers.get('content-length')
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if clen is None:
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raise _InvalidPost(411)
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try:
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clen = int(clen)
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except ValueError:
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raise _InvalidPost(403)
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if clen < 0:
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raise _InvalidPost(403)
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return clen
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