308 lines
13 KiB
Python
308 lines
13 KiB
Python
from __future__ import annotations
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import datetime
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import pprint
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from typing import TYPE_CHECKING
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from discord_webhook import DiscordEmbed, DiscordWebhook
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from fastapi import HTTPException
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from reader import Entry, EntryNotFoundError, Feed, FeedExistsError, Reader, StorageError, TagNotFoundError
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from discord_rss_bot import custom_message
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from discord_rss_bot.filter.blacklist import should_be_skipped
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from discord_rss_bot.filter.whitelist import has_white_tags, should_be_sent
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from discord_rss_bot.is_url_valid import is_url_valid
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from discord_rss_bot.settings import default_custom_message, get_reader, logger
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if TYPE_CHECKING:
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from collections.abc import Iterable
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from requests import Response
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def send_entry_to_discord(entry: Entry, custom_reader: Reader | None = None) -> str | None:
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"""Send a single entry to Discord.
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Args:
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entry: The entry to send to Discord.
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custom_reader: The reader to use. If None, the default reader will be used.
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Returns:
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str | None: The error message if there was an error, otherwise None.
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"""
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# Get the default reader if we didn't get a custom one.
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reader: Reader = get_reader() if custom_reader is None else custom_reader
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# Get the webhook URL for the entry.
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webhook_url: str = str(reader.get_tag(entry.feed_url, "webhook", ""))
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if not webhook_url:
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return "No webhook URL found."
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# Try to get the custom message for the feed. If the user has none, we will use the default message.
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# This has to be a string for some reason so don't change it to "not custom_message.get_custom_message()"
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if custom_message.get_custom_message(reader, entry.feed) != "": # noqa: PLC1901
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webhook_message: str = custom_message.replace_tags_in_text_message(entry=entry)
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if not webhook_message:
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webhook_message = "No message found."
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# Create the webhook.
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if bool(reader.get_tag(entry.feed, "should_send_embed")):
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webhook = create_embed_webhook(webhook_url, entry)
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else:
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webhook: DiscordWebhook = DiscordWebhook(url=webhook_url, content=webhook_message, rate_limit_retry=True)
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response: Response = webhook.execute()
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if response.status_code not in {200, 204}:
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logger.error("Error sending entry to Discord: %s\n%s", response.text, pprint.pformat(webhook.json))
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return f"Error sending entry to Discord: {response.text}"
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return None
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def set_description(custom_embed: custom_message.CustomEmbed, discord_embed: DiscordEmbed) -> None:
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"""Set the description of the embed.
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Args:
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custom_embed (custom_message.CustomEmbed): The custom embed to get the description from.
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discord_embed (DiscordEmbed): The Discord embed to set the description on.
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"""
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# Its actually 2048, but we will use 2000 to be safe.
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max_description_length: int = 2000
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embed_description: str = custom_embed.description
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embed_description = (
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embed_description[:max_description_length] + "..."
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if len(embed_description) > max_description_length
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else embed_description
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)
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discord_embed.set_description(embed_description) if embed_description else None
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def set_title(custom_embed: custom_message.CustomEmbed, discord_embed: DiscordEmbed) -> None:
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"""Set the title of the embed.
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Args:
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custom_embed: The custom embed to get the title from.
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discord_embed: The Discord embed to set the title on.
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"""
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# Its actually 256, but we will use 200 to be safe.
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max_title_length: int = 200
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embed_title: str = custom_embed.title
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embed_title = embed_title[:max_title_length] + "..." if len(embed_title) > max_title_length else embed_title
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discord_embed.set_title(embed_title) if embed_title else None
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def create_embed_webhook(webhook_url: str, entry: Entry) -> DiscordWebhook:
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"""Create a webhook with an embed.
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Args:
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webhook_url (str): The webhook URL.
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entry (Entry): The entry to send to Discord.
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Returns:
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DiscordWebhook: The webhook with the embed.
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"""
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webhook: DiscordWebhook = DiscordWebhook(url=webhook_url, rate_limit_retry=True)
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feed: Feed = entry.feed
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# Get the embed data from the database.
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custom_embed: custom_message.CustomEmbed = custom_message.replace_tags_in_embed(feed=feed, entry=entry)
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discord_embed: DiscordEmbed = DiscordEmbed()
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set_description(custom_embed=custom_embed, discord_embed=discord_embed)
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set_title(custom_embed=custom_embed, discord_embed=discord_embed)
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custom_embed_author_url: str | None = custom_embed.author_url
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if not is_url_valid(custom_embed_author_url):
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custom_embed_author_url = None
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custom_embed_color: str | None = custom_embed.color or None
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if custom_embed_color and custom_embed_color.startswith("#"):
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custom_embed_color = custom_embed_color[1:]
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discord_embed.set_color(int(custom_embed_color, 16))
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if custom_embed.author_name and not custom_embed_author_url and not custom_embed.author_icon_url:
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discord_embed.set_author(name=custom_embed.author_name)
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if custom_embed.author_name and custom_embed_author_url and not custom_embed.author_icon_url:
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discord_embed.set_author(name=custom_embed.author_name, url=custom_embed_author_url)
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if custom_embed.author_name and not custom_embed_author_url and custom_embed.author_icon_url:
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discord_embed.set_author(name=custom_embed.author_name, icon_url=custom_embed.author_icon_url)
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if custom_embed.author_name and custom_embed_author_url and custom_embed.author_icon_url:
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discord_embed.set_author(
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name=custom_embed.author_name,
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url=custom_embed_author_url,
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icon_url=custom_embed.author_icon_url,
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)
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if custom_embed.thumbnail_url:
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discord_embed.set_thumbnail(url=custom_embed.thumbnail_url)
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if custom_embed.image_url:
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discord_embed.set_image(url=custom_embed.image_url)
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if custom_embed.footer_text:
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discord_embed.set_footer(text=custom_embed.footer_text)
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if custom_embed.footer_icon_url and custom_embed.footer_text:
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discord_embed.set_footer(text=custom_embed.footer_text, icon_url=custom_embed.footer_icon_url)
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if custom_embed.footer_icon_url and not custom_embed.footer_text:
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discord_embed.set_footer(text="-", icon_url=custom_embed.footer_icon_url)
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webhook.add_embed(discord_embed)
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return webhook
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def send_to_discord(custom_reader: Reader | None = None, feed: Feed | None = None, *, do_once: bool = False) -> None: # noqa: PLR0912
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"""Send entries to Discord.
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If response was not ok, we will log the error and mark the entry as unread, so it will be sent again next time.
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Args:
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custom_reader: If we should use a custom reader instead of the default one.
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feed: The feed to send to Discord.
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do_once: If we should only send one entry. This is used in the test.
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Returns:
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Response: The response from the webhook.
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"""
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# Get the default reader if we didn't get a custom one.
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reader: Reader = get_reader() if custom_reader is None else custom_reader
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# Check for new entries for every feed.
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reader.update_feeds()
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# Loop through the unread entries.
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entries: Iterable[Entry] = reader.get_entries(feed=feed, read=False)
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for entry in entries:
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if entry.added < datetime.datetime.now(tz=entry.added.tzinfo) - datetime.timedelta(days=1):
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logger.info("Entry is older than 24 hours: %s from %s", entry.id, entry.feed.url)
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reader.set_entry_read(entry, True)
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continue
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# Set the webhook to read, so we don't send it again.
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try:
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reader.set_entry_read(entry, True)
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except EntryNotFoundError as e:
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logger.error("Error setting entry to read: %s", e)
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continue
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except StorageError as e:
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logger.error("Error setting entry to read: %s", e)
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continue
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# Get the webhook URL for the entry. If it is None, we will continue to the next entry.
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webhook_url: str = str(reader.get_tag(entry.feed_url, "webhook", ""))
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if not webhook_url:
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continue
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if bool(reader.get_tag(entry.feed, "should_send_embed")):
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webhook = create_embed_webhook(webhook_url, entry)
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else:
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# If the user has set the custom message to an empty string, we will use the default message, otherwise we
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# will use the custom message.
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if custom_message.get_custom_message(reader, entry.feed) != "": # noqa: PLC1901
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webhook_message = custom_message.replace_tags_in_text_message(entry)
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else:
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webhook_message: str = str(default_custom_message)
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# Its actually 4096, but we will use 4000 to be safe.
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max_content_length: int = 4000
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webhook_message = (
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webhook_message[:max_content_length] + "..."
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if len(webhook_message) > max_content_length
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else webhook_message
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)
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# Create the webhook.
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webhook: DiscordWebhook = DiscordWebhook(url=webhook_url, content=webhook_message, rate_limit_retry=True)
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# Check if the entry is blacklisted, if it is, mark it as read and continue.
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if should_be_skipped(reader, entry):
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logger.info("Entry was blacklisted: %s", entry.id)
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reader.set_entry_read(entry, True)
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continue
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# Check if the feed has a whitelist, and if it does, check if the entry is whitelisted.
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if has_white_tags(reader, entry.feed):
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if should_be_sent(reader, entry):
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response: Response = webhook.execute()
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if response.status_code not in {200, 204}:
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logger.error("Error sending entry to Discord: %s\n%s", response.text, pprint.pformat(webhook.json))
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reader.set_entry_read(entry, True)
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return
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reader.set_entry_read(entry, True)
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continue
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# It was not blacklisted, and not forced through whitelist, so we will send it to Discord.
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response: Response = webhook.execute()
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if response.status_code not in {200, 204}:
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logger.error("Error sending entry to Discord: %s\n%s", response.text, pprint.pformat(webhook.json))
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reader.set_entry_read(entry, True)
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return
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# If we only want to send one entry, we will break the loop. This is used when testing this function.
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if do_once:
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logger.info("Sent one entry to Discord.")
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break
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# Update the search index.
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reader.update_search()
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def create_feed(reader: Reader, feed_url: str, webhook_dropdown: str) -> None:
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"""Add a new feed, update it and mark every entry as read.
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Args:
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reader: The reader to use.
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feed_url: The feed to add.
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webhook_dropdown: The webhook we should send entries to.
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Raises:
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HTTPException: If webhook_dropdown does not equal a webhook or default_custom_message not found.
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"""
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clean_feed_url: str = feed_url.strip()
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webhook_url: str = ""
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if hooks := reader.get_tag((), "webhooks", []):
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# Get the webhook URL from the dropdown.
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for hook in hooks:
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if hook["name"] == webhook_dropdown: # type: ignore
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webhook_url = hook["url"] # type: ignore
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break
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if not webhook_url:
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raise HTTPException(status_code=404, detail="Webhook not found")
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try:
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# TODO(TheLovinator): Check if the feed is valid
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reader.add_feed(clean_feed_url)
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except FeedExistsError:
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# Add the webhook to an already added feed if it doesn't have a webhook instead of trying to create a new.
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try:
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reader.get_tag(clean_feed_url, "webhook")
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except TagNotFoundError:
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reader.set_tag(clean_feed_url, "webhook", webhook_url) # type: ignore
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reader.update_feed(clean_feed_url)
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# Mark every entry as read, so we don't send all the old entries to Discord.
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entries: Iterable[Entry] = reader.get_entries(feed=clean_feed_url, read=False)
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for entry in entries:
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reader.set_entry_read(entry, True)
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if not default_custom_message:
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# TODO(TheLovinator): Show this error on the page.
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raise HTTPException(status_code=404, detail="Default custom message couldn't be found.")
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# This is the webhook that will be used to send the feed to Discord.
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reader.set_tag(clean_feed_url, "webhook", webhook_url) # type: ignore
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# This is the default message that will be sent to Discord.
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reader.set_tag(clean_feed_url, "custom_message", default_custom_message) # type: ignore
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# Update the full-text search index so our new feed is searchable.
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reader.update_search()
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