140 lines
4.4 KiB
Rust
140 lines
4.4 KiB
Rust
use super::DiceBot;
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use crate::db::sqlite::Database;
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use crate::db::Rooms;
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use crate::error::BotError;
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use log::{debug, error, info, warn};
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use matrix_sdk::ruma::events::room::member::RoomMemberEventContent;
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use matrix_sdk::ruma::events::{StrippedStateEvent, SyncMessageLikeEvent};
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use matrix_sdk::{Client, DisplayName};
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use matrix_sdk::{self, room::Room, ruma::events::room::message::RoomMessageEventContent};
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use std::ops::Sub;
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use std::time::{Duration, SystemTime};
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use std::time::UNIX_EPOCH;
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/// Check if a message is recent enough to actually process. If the
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/// message is within "oldest_message_age" seconds, this function
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/// returns true. If it's older than that, it returns false and logs a
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/// debug message.
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fn check_message_age(
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event: &SyncMessageLikeEvent<RoomMessageEventContent>,
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oldest_message_age: u64,
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) -> bool {
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let sending_time = event
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.origin_server_ts()
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.to_system_time()
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.unwrap_or(UNIX_EPOCH);
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let oldest_timestamp = SystemTime::now().sub(Duration::from_secs(oldest_message_age));
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if sending_time > oldest_timestamp {
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true
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} else {
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let age = match oldest_timestamp.duration_since(sending_time) {
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Ok(n) => format!("{} seconds too old", n.as_secs()),
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Err(_) => "before the UNIX epoch".to_owned(),
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};
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debug!("Ignoring message because it is {}: {:?}", age, event);
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false
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}
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}
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/// Determine whether or not to process a received message. This check
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/// is necessary in addition to the event processing check because we
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/// may receive message events when entering a room for the first
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/// time, and we don't want to respond to things before the bot was in
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/// the channel, but we do want to respond to things that were sent if
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/// the bot left and rejoined quickly.
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async fn should_process_message<'a>(
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bot: &DiceBot,
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event: &SyncMessageLikeEvent<RoomMessageEventContent>,
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) -> Result<(String, String), BotError> {
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//Ignore messages that are older than configured duration.
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if !check_message_age(event, bot.config.oldest_message_age()) {
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let state_check = bot.state.read().unwrap();
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if !((*state_check).logged_skipped_old_messages()) {
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drop(state_check);
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let mut state = bot.state.write().unwrap();
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(*state).skipped_old_messages();
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}
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return Err(BotError::ShouldNotProcessError);
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}
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let msg_body: String = event
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.as_original()
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.map(|e| e.content.body())
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.map(str::to_string)
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.unwrap_or_else(|| String::new());
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let sender_username: String = format!("@{}:{}", event.sender().localpart(), event.sender().server_name());
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Ok((msg_body, sender_username))
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}
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async fn should_process_event(db: &Database, room_id: &str, event_id: &str) -> bool {
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db.should_process(room_id, event_id)
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.await
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.unwrap_or_else(|e| {
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error!(
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"Database error when checking if we should process an event: {}",
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e.to_string()
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);
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false
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})
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}
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pub(super) async fn on_stripped_state_member(
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event: StrippedStateEvent<RoomMemberEventContent>,
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client: Client,
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room: Room,
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) {
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let room = match room {
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Room::Invited(invited_room) => invited_room,
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_ => return,
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};
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if room.own_user_id().as_str() != event.state_key {
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return;
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}
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info!(
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"Autojoining room {}",
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room.display_name().await.ok().unwrap_or_else(|| DisplayName::Named("[error]".to_string()))
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);
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if let Err(e) = client.join_room_by_id(&room.room_id()).await {
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warn!("Could not join room: {}", e.to_string())
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}
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}
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pub(super) async fn on_room_message(
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event: SyncMessageLikeEvent<RoomMessageEventContent>,
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room: Room,
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bot: DiceBot,
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) {
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let room = match room {
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Room::Joined(joined_room) => joined_room,
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_ => return,
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};
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let room_id = room.room_id().as_str();
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if !should_process_event(&bot.db, room_id, event.event_id().as_str()).await {
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return;
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}
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let (msg_body, sender_username) =
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if let Ok((msg_body, sender_username)) = should_process_message(&bot, &event).await {
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(msg_body, sender_username)
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} else {
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return;
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};
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let results = bot
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.execute_commands(&room, &sender_username, &msg_body)
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.await;
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bot.handle_results(&room, &sender_username, event.event_id().to_owned(), results)
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.await;
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}
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