steffo/greed
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Handle correctly telegram exceptions

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This commit is contained in:
Steffo 2018-04-05 10:34:14 +02:00
parent 2ba2be62ff
commit ffc5bbb5f6
3 changed files with 31 additions and 52 deletions
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35
core.py
View file

@ -36,39 +36,8 @@ def main():
# Main loop of the program
while True:
# Get a new batch of 100 updates and mark the last 100 parsed as read
try:
updates = bot.get_updates(offset=next_update,
timeout=int(configloader.config["Telegram"]["long_polling_timeout"]))
# If the method times out...
except telegram.error.TimedOut:
# Increase the TimedOut counter
timed_out_counter += 1
# Notify on stdout
print(f"WARNING: get_updates timed out ({timed_out_counter} time{'s' if timed_out_counter != 1 else ''})")
# Try again
continue
# If the method raises a NetworkError (connection problems)...
except telegram.error.NetworkError:
# Increase the TimedOut counter
timed_out_counter += 1
# Notify on stdout
print(f"ERROR: get_updates raised a NetworkError ({timed_out_counter} time{'s' if timed_out_counter != 1 else ''})")
# Wait some time before retrying
time.sleep(3)
continue
# If Telegram returns an error...
except telegram.error.TelegramError as e:
# Increase the TimedOut counter
timed_out_counter += 1
# Notify on stdout
print(f"ERROR: telegram returned an error while trying to get_updates ({e.message}) ({timed_out_counter} time{'s' if timed_out_counter != 1 else ''})")
# Wait some time before retrying
time.sleep(3)
continue
# If all goes well...
else:
# Reset the TimedOut counter
timed_out_counter = 0
updates = bot.get_updates(offset=next_update,
timeout=int(configloader.config["Telegram"]["long_polling_timeout"]))
# Parse all the updates
for update in updates:
# If the update is a message...

36
utils.py
View file

@ -5,6 +5,7 @@ from configloader import config
from strings import currency_format_string, currency_symbol
import typing
class Price:
def __init__(self, value:typing.Union[int, float, str, "Price"]=0):
if isinstance(value, int):
@ -92,18 +93,23 @@ def catch_telegram_errors(func):
def result_func(*args, **kwargs):
while True:
try:
func(*args, **kwargs)
return func(*args, **kwargs)
# Bot was blocked by the user
except telegram.error.Unauthorized:
print(f"Unauthorized to call {func.__name__}(), skipping.")
break
# Telegram API didn't answer in time
except telegram.error.TimedOut:
print(f"Timed out while calling {func.__name__}(), retrying in 1 sec...")
time.sleep(1)
# Telegram is not reachable
except telegram.error.NetworkError:
print(f"Network error while calling {func.__name__}(), retrying in 5 secs...")
time.sleep(5)
else:
break
# Unknown error
except telegram.error.TelegramError:
print(f"Telegram error while calling {func.__name__}(), retrying in 5 secs...")
time.sleep(5)
return result_func
@ -113,46 +119,46 @@ class DuckBot:
@catch_telegram_errors
def send_message(self, *args, **kwargs):
self.bot.send_message(*args, **kwargs)
return self.bot.send_message(*args, **kwargs)
@catch_telegram_errors
def edit_message_text(self, *args, **kwargs):
self.bot.edit_message_text(*args, **kwargs)
return self.bot.edit_message_text(*args, **kwargs)
@catch_telegram_errors
def edit_message_caption(self, *args, **kwargs):
self.bot.edit_message_caption(*args, **kwargs)
return self.bot.edit_message_caption(*args, **kwargs)
@catch_telegram_errors
def edit_message_reply_markup(self, *args, **kwargs):
self.bot.edit_message_reply_markup(*args, **kwargs)
return self.bot.edit_message_reply_markup(*args, **kwargs)
@catch_telegram_errors
def get_updates(self, *args, **kwargs):
self.bot.get_updates(*args, **kwargs)
return self.bot.get_updates(*args, **kwargs)
@catch_telegram_errors
def get_me(self, *args, **kwargs):
self.bot.get_me(*args, **kwargs)
return self.bot.get_me(*args, **kwargs)
@catch_telegram_errors
def answer_callback_query(self, *args, **kwargs):
self.bot.answer_callback_query(*args, **kwargs)
return self.bot.answer_callback_query(*args, **kwargs)
@catch_telegram_errors
def answer_pre_checkout_query(self, *args, **kwargs):
self.bot.answer_pre_checkout_query(*args, **kwargs)
return self.bot.answer_pre_checkout_query(*args, **kwargs)
@catch_telegram_errors
def send_invoice(self, *args, **kwargs):
self.bot.send_invoice(*args, **kwargs)
return self.bot.send_invoice(*args, **kwargs)
@catch_telegram_errors
def get_file(self, *args, **kwargs):
self.bot.get_file(*args, **kwargs)
return self.bot.get_file(*args, **kwargs)
@catch_telegram_errors
def send_chat_action(self, *args, **kwargs):
self.bot.send_chat_action(*args, **kwargs)
return self.bot.send_chat_action(*args, **kwargs)
# TODO: add more methods
# TODO: add more methods

12
worker.py
View file

@ -12,6 +12,7 @@ import re
import utils
from html import escape
class StopSignal:
"""A data class that should be sent to the worker when the conversation has to be stopped abnormally."""
@ -45,7 +46,6 @@ class ChatWorker(threading.Thread):
def run(self):
"""The conversation code."""
# TODO: catch all the possible exceptions
# Welcome the user to the bot
self.bot.send_message(self.chat.id, strings.conversation_after_start)
# Get the user db data from the users and admin tables
@ -78,6 +78,7 @@ class ChatWorker(threading.Thread):
# Wait for the thread to stop
self.join()
# noinspection PyUnboundLocalVariable
def __receive_next_update(self) -> telegram.Update:
"""Get the next update from the queue.
If no update is found, block the process until one is received.
@ -95,7 +96,9 @@ class ChatWorker(threading.Thread):
# Return the received update
return data
def __wait_for_specific_message(self, items:typing.List[str], cancellable:bool=False) -> typing.Union[str, CancelSignal]:
def __wait_for_specific_message(self,
items: typing.List[str],
cancellable: bool=False) -> typing.Union[str, CancelSignal]:
"""Continue getting updates until until one of the strings contained in the list is received as a message."""
while True:
# Get the next update
@ -116,7 +119,7 @@ class ChatWorker(threading.Thread):
# Return the message text
return update.message.text
def __wait_for_regex(self, regex:str, cancellable:bool=False) -> typing.Union[str, CancelSignal]:
def __wait_for_regex(self, regex: str, cancellable: bool=False) -> typing.Union[str, CancelSignal]:
"""Continue getting updates until the regex finds a match in a message, then return the first capture group."""
while True:
# Get the next update
@ -139,7 +142,8 @@ class ChatWorker(threading.Thread):
# Return the first capture group
return match.group(1)
def __wait_for_precheckoutquery(self, cancellable:bool=False) -> typing.Union[telegram.PreCheckoutQuery, CancelSignal]:
def __wait_for_precheckoutquery(self,
cancellable: bool=False) -> typing.Union[telegram.PreCheckoutQuery, CancelSignal]:
"""Continue getting updates until a precheckoutquery is received.
The payload is checked by the core before forwarding the message."""
while True: