86 lines
2.4 KiB
Python
86 lines
2.4 KiB
Python
from typing import Optional
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import facebook
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from facebook import GraphAPIError
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from mobilizon_reshare.dataclasses import MobilizonEvent
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from mobilizon_reshare.formatting.description import html_to_plaintext
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from mobilizon_reshare.publishers.abstract import (
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AbstractPlatform,
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AbstractEventFormatter,
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)
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from mobilizon_reshare.publishers.exceptions import (
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InvalidCredentials,
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InvalidEvent,
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InvalidMessage,
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PublisherError,
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)
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class FacebookFormatter(AbstractEventFormatter):
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_conf = ("publisher", "facebook")
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def _validate_event(self, event: MobilizonEvent) -> None:
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text = event.description
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if not (text and text.strip()):
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self._log_error("No text was found", raise_error=InvalidEvent)
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def _validate_message(self, message) -> None:
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if len(message) >= 63200:
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self._log_error("Message is too long", raise_error=InvalidMessage)
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def _preprocess_event(self, event: MobilizonEvent):
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event.description = html_to_plaintext(event.description)
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event.name = html_to_plaintext(event.name)
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return event
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class FacebookPlatform(AbstractPlatform):
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"""
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Facebook publisher class.
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"""
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name = "facebook"
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def _get_api(self) -> facebook.GraphAPI:
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return facebook.GraphAPI(access_token=self.conf["page_access_token"])
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def _send(self, message: str, event: Optional[MobilizonEvent] = None):
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try:
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self._get_api().put_object(
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parent_object="me",
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connection_name="feed",
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message=message,
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link=event.mobilizon_link if event else None,
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)
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except GraphAPIError:
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self._log_error(
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"Facebook send failed", raise_error=PublisherError,
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)
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def validate_credentials(self):
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try:
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self._log_debug("Validating Facebook credentials")
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self._get_api().get_object(id="me", field="name")
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except GraphAPIError:
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self._log_error(
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"Invalid Facebook credentials. Authentication Failed",
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raise_error=InvalidCredentials,
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)
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self._log_debug("Facebook credentials are valid")
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def _validate_response(self, response):
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pass
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class FacebookPublisher(FacebookPlatform):
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_conf = ("publisher", "facebook")
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class FacebookNotifier(FacebookPlatform):
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_conf = ("notifier", "facebook")
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