matrix-alertbot/matrix_alertbot/chat_functions.py
2022-08-08 12:38:09 +02:00

140 lines
3.6 KiB
Python

import logging
from typing import Dict, Optional, TypedDict, Union
from nio import AsyncClient, ErrorResponse, Response, RoomSendResponse
from typing_extensions import NotRequired
logger = logging.getLogger(__name__)
ContentEventDict = TypedDict(
"ContentEventDict",
{
"msgtype": str,
"format": str,
"body": str,
"formatted_body": NotRequired[str],
"m.relates_to": NotRequired[Dict],
},
)
async def send_text_to_room(
matrix_client: AsyncClient,
room_id: str,
plaintext: str,
html: str = None,
notice: bool = True,
reply_to_event_id: Optional[str] = None,
) -> RoomSendResponse:
"""Send text to a matrix room.
Args:
client: The client to communicate to matrix with.
room_id: The ID of the room to send the message to.
plaintext: The message content.
html: The message content in HTML format.
notice: Whether the message should be sent with an "m.notice" message type
(will not ping users).
reply_to_event_id: Whether this message is a reply to another event. The event
ID this is message is a reply to.
Returns:
A RoomSendResponse if the request was successful, else an ErrorResponse.
"""
# Determine whether to ping room members or not
msgtype = "m.notice" if notice else "m.text"
content: ContentEventDict = {
"msgtype": msgtype,
"format": "org.matrix.custom.html",
"body": plaintext,
}
if html is not None:
content["formatted_body"] = html
if reply_to_event_id:
content["m.relates_to"] = {"m.in_reply_to": {"event_id": reply_to_event_id}}
return await matrix_client.room_send(
room_id,
"m.room.message",
content,
ignore_unverified_devices=True,
)
def make_pill(user_id: str, displayname: str = None) -> str:
"""Convert a user ID (and optionally a display name) to a formatted user 'pill'
Args:
user_id: The MXID of the user.
displayname: An optional displayname. Clients like Element will figure out the
correct display name no matter what, but other clients may not. If not
provided, the MXID will be used instead.
Returns:
The formatted user pill.
"""
if not displayname:
# Use the user ID as the displayname if not provided
displayname = user_id
return f'<a href="https://matrix.to/#/{user_id}">{displayname}</a>'
async def react_to_event(
client: AsyncClient,
room_id: str,
event_id: str,
reaction_text: str,
) -> Union[Response, ErrorResponse]:
"""Reacts to a given event in a room with the given reaction text
Args:
client: The client to communicate to matrix with.
room_id: The ID of the room to send the message to.
event_id: The ID of the event to react to.
reaction_text: The string to react with. Can also be (one or more) emoji characters.
Returns:
A nio.Response or nio.ErrorResponse if an error occurred.
Raises:
SendRetryError: If the reaction was unable to be sent.
"""
content = {
"m.relates_to": {
"rel_type": "m.annotation",
"event_id": event_id,
"key": reaction_text,
}
}
return await client.room_send(
room_id,
"m.reaction",
content,
ignore_unverified_devices=True,
)
def strip_fallback(content: str) -> str:
index = 0
for line in content.splitlines(keepends=True):
if not line.startswith("> "):
break
if index == 0:
index += 1
index += len(line)
return content[index:]