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Handlers and Middlewares processing union 

Call for handlers now union in a single function for future extension.

Plus minor fixes in storages.
This commit is contained in:
Badiboy 2022-09-17 11:57:12 +03:00
parent 8d9dfcfac8
commit da639dd1f6
6 changed files with 106 additions and 93 deletions
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172
telebot/__init__.py
View File

@ -469,6 +469,7 @@ class TeleBot:
webhook_url = "{}://{}:{}/{}".format(protocol, listen, port, url_path)
if certificate and certificate_key:
# noinspection PyTypeChecker
ssl_ctx = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
ssl_ctx.load_cert_chain(certificate, certificate_key)
@ -5875,7 +5876,7 @@ class TeleBot:
return False
# middleware check-up method
def _check_middleware(self, update_type):
def _check_middlewares(self, update_type):
"""
Check middleware
@ -5889,100 +5890,111 @@ class TeleBot:
def _run_middlewares_and_handler(self, message, handlers, middlewares, update_type):
"""
This class is made to run handler and middleware in queue.
This class is made to run handlers and middlewares in queue.
:param handler: handler that should be executed.
:param middleware: middleware that should be executed.
:param message: received message (update part) to process with handlers and/or middlewares
:param handlers: all created handlers (not filtered)
:param middlewares: middlewares that should be executed (already filtered)
:param update_type: handler/update type (Update field name)
:return:
"""
data = {}
params =[]
handler_error = None
skip_handlers = False
if middlewares:
for middleware in middlewares:
if middleware.update_sensitive:
if hasattr(middleware, f'pre_process_{update_type}'):
result = getattr(middleware, f'pre_process_{update_type}')(message, data)
else:
logger.error('Middleware {} does not have pre_process_{} method. pre_process function execution was skipped.'.format(middleware.__class__.__name__, update_type))
result = None
else:
result = middleware.pre_process(message, data)
# We will break this loop if CancelUpdate is returned
# Also, we will not run other middlewares
if isinstance(result, CancelUpdate):
return
elif isinstance(result, SkipHandler):
skip_handlers = True
if handlers and not(skip_handlers):
try:
for handler in handlers:
process_handler = self._test_message_handler(handler, message)
if not process_handler: continue
for i in inspect.signature(handler['function']).parameters:
params.append(i)
if len(params) == 1:
handler['function'](message)
elif "data" in params:
if len(params) == 2:
handler['function'](message, data)
elif len(params) == 3:
handler['function'](message, data=data, bot=self)
else:
logger.error("It is not allowed to pass data and values inside data to the handler. Check your handler: {}".format(handler['function']))
return
else:
data_copy = data.copy()
for key in list(data_copy):
# remove data from data_copy if handler does not accept it
if key not in params:
del data_copy[key]
if handler.get('pass_bot'):
data_copy["bot"] = self
if len(data_copy) > len(params) - 1: # remove the message parameter
logger.error("You are passing more parameters than the handler needs. Check your handler: {}".format(handler['function']))
return
handler["function"](message, **data_copy)
if not self.use_class_middlewares:
for message_handler in handlers:
if self._test_message_handler(message_handler, message):
self._exec_task(message_handler['function'], message, pass_bot=message_handler['pass_bot'], task_type='handler')
break
except Exception as e:
handler_error = e
if self.exception_handler:
self.exception_handler.handle(e)
else:
logging.error(str(e))
logger.debug("Exception traceback:\n%s", traceback.format_exc())
else:
data = {}
params =[]
handler_error = None
skip_handlers = False
if middlewares:
for middleware in middlewares:
if middleware.update_sensitive:
if hasattr(middleware, f'post_process_{update_type}'):
getattr(middleware, f'post_process_{update_type}')(message, data, handler_error)
if middlewares:
for middleware in middlewares:
if middleware.update_sensitive:
if hasattr(middleware, f'pre_process_{update_type}'):
result = getattr(middleware, f'pre_process_{update_type}')(message, data)
else:
logger.error('Middleware {} does not have pre_process_{} method. pre_process function execution was skipped.'.format(middleware.__class__.__name__, update_type))
result = None
else:
logger.error("Middleware: {} does not have post_process_{} method. Post process function was not executed.".format(middleware.__class__.__name__, update_type))
else:
middleware.post_process(message, data, handler_error)
result = middleware.pre_process(message, data)
# We will break this loop if CancelUpdate is returned
# Also, we will not run other middlewares
if isinstance(result, CancelUpdate):
return
elif isinstance(result, SkipHandler):
skip_handlers = True
if handlers and not(skip_handlers):
try:
for handler in handlers:
process_handler = self._test_message_handler(handler, message)
if not process_handler: continue
for i in inspect.signature(handler['function']).parameters:
params.append(i)
if len(params) == 1:
handler['function'](message)
elif "data" in params:
if len(params) == 2:
handler['function'](message, data)
elif len(params) == 3:
handler['function'](message, data=data, bot=self)
else:
logger.error("It is not allowed to pass data and values inside data to the handler. Check your handler: {}".format(handler['function']))
return
else:
data_copy = data.copy()
for key in list(data_copy):
# remove data from data_copy if handler does not accept it
if key not in params:
del data_copy[key]
if handler.get('pass_bot'):
data_copy["bot"] = self
if len(data_copy) > len(params) - 1: # remove the message parameter
logger.error("You are passing more parameters than the handler needs. Check your handler: {}".format(handler['function']))
return
handler["function"](message, **data_copy)
break
except Exception as e:
handler_error = e
if self.exception_handler:
self.exception_handler.handle(e)
else:
logging.error(str(e))
logger.debug("Exception traceback:\n%s", traceback.format_exc())
if middlewares:
for middleware in middlewares:
if middleware.update_sensitive:
if hasattr(middleware, f'post_process_{update_type}'):
getattr(middleware, f'post_process_{update_type}')(message, data, handler_error)
else:
logger.error("Middleware: {} does not have post_process_{} method. Post process function was not executed.".format(middleware.__class__.__name__, update_type))
else:
middleware.post_process(message, data, handler_error)
def _notify_command_handlers(self, handlers, new_messages, update_type):
"""
Notifies command handlers.
:param handlers:
:param new_messages:
:param handlers: all created handlers
:param new_messages: received messages to proceed
:param update_type: handler/update type (Update fields)
:return:
"""
if not(handlers) and not(self.use_class_middlewares):
return
if self.use_class_middlewares:
middlewares = self._check_middlewares(update_type)
else:
middlewares = None
for message in new_messages:
if not self.use_class_middlewares:
for message_handler in handlers:
if self._test_message_handler(message_handler, message):
self._exec_task(message_handler['function'], message, pass_bot=message_handler['pass_bot'], task_type='handler')
break
else:
middleware = self._check_middleware(update_type)
self._exec_task(self._run_middlewares_and_handler, message, handlers=handlers, middlewares=middleware, update_type=update_type)
return
self._exec_task(
self._run_middlewares_and_handler,
message,
handlers=handlers,
middlewares=middlewares,
update_type=update_type)

18
telebot/ext/sync/webhooks.py
View File

@ -1,6 +1,5 @@
"""
This file is used by TeleBot.run_webhooks() function.
Fastapi is required to run this script.
"""
@ -15,15 +14,11 @@ try:
except ImportError:
fastapi_installed = False
from telebot.types import Update
from typing import Optional
class SyncWebhookListener:
def __init__(self, bot,
secret_token: str, host: Optional[str]="127.0.0.1",
@ -33,13 +28,13 @@ class SyncWebhookListener:
debug: Optional[bool]=False
) -> None:
"""
Aynchronous implementation of webhook listener
for asynchronous version of telebot.
Synchronous implementation of webhook listener
for synchronous version of telebot.
Not supposed to be used manually by user.
Use AsyncTeleBot.run_webhooks() instead.
Use TeleBot.run_webhooks() instead.
:param bot: AsyncTeleBot instance.
:type bot: telebot.async_telebot.AsyncTeleBot
:param bot: TeleBot instance.
:type bot: telebot.TeleBot
:param secret_token: Telegram secret token
:type secret_token: str
@ -77,7 +72,8 @@ class SyncWebhookListener:
self._prepare_endpoint_urls()
def _check_dependencies(self):
@staticmethod
def _check_dependencies():
if not fastapi_installed:
raise ImportError('Fastapi or uvicorn is not installed. Please install it via pip.')

5
telebot/storage/base_storage.py
View File

@ -41,7 +41,10 @@ class StateStorageBase:
def get_state(self, chat_id, user_id):
raise NotImplementedError
def get_interactive_data(self, chat_id, user_id):
raise NotImplementedError
def save(self, chat_id, user_id, data):
raise NotImplementedError

1
telebot/storage/memory_storage.py
View File

@ -3,6 +3,7 @@ from telebot.storage.base_storage import StateStorageBase, StateContext
class StateMemoryStorage(StateStorageBase):
def __init__(self) -> None:
super().__init__()
self.data = {}
#
# {chat_id: {user_id: {'state': None, 'data': {}}, ...}, ...}

2
telebot/storage/pickle_storage.py
View File

@ -5,8 +5,8 @@ import pickle
class StatePickleStorage(StateStorageBase):
# noinspection PyMissingConstructor
def __init__(self, file_path="./.state-save/states.pkl") -> None:
super().__init__()
self.file_path = file_path
self.create_dir()
self.data = self.read()

1
telebot/storage/redis_storage.py
View File

@ -16,6 +16,7 @@ class StateRedisStorage(StateStorageBase):
TeleBot(storage=StateRedisStorage())
"""
def __init__(self, host='localhost', port=6379, db=0, password=None, prefix='telebot_'):
super().__init__()
self.redis = ConnectionPool(host=host, port=port, db=db, password=password)
#self.con = Redis(connection_pool=self.redis) -> use this when necessary
#