337 lines
9.7 KiB
Rust
337 lines
9.7 KiB
Rust
#![warn(clippy::nursery, clippy::pedantic)]
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use std::fmt::Display;
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use std::path::PathBuf;
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use std::str::FromStr;
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use std::time::Duration;
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use anyhow::{Context, Result};
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use clap::Parser;
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use enum_iterator::IntoEnumIterator;
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use matrix_sdk::config::SyncSettings;
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use matrix_sdk::room::{Joined, MessagesOptions, Room};
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use matrix_sdk::ruma::events::room::member::StrippedRoomMemberEvent;
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use matrix_sdk::ruma::events::room::message::{
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MessageType, RoomMessageEventContent, SyncRoomMessageEvent, TextMessageEventContent,
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};
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use matrix_sdk::ruma::events::{
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AnyMessageLikeEvent, AnyRoomEvent, MessageLikeEvent, OriginalMessageLikeEvent,
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OriginalSyncMessageLikeEvent, SyncMessageLikeEvent,
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};
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use matrix_sdk::ruma::OwnedUserId;
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use matrix_sdk::store::CryptoStore;
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use matrix_sdk::{Client, Session};
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use serde::{Deserialize, Serialize};
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use tracing::{error, info, Level};
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use tracing_subscriber::util::SubscriberInitExt;
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#[derive(Parser)]
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struct Args {
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#[clap(subcommand)]
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subcommand: Command,
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}
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#[derive(Parser)]
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enum Command {
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Login {
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user_id: OwnedUserId,
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password: String,
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},
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Run {
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#[clap(default_value = "config.toml")]
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config_path: PathBuf,
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#[clap(default_value = "crypto_data")]
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crypto_store_path: PathBuf,
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},
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}
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#[derive(Serialize, Deserialize)]
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struct TomlConfig {
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session: Session,
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}
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#[tokio::main]
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async fn main() -> Result<()> {
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tracing_subscriber::fmt()
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.with_max_level(Level::INFO)
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.finish()
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.init();
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let args = Args::parse();
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match args.subcommand {
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Command::Login { user_id, password } => handle_login(user_id, &password).await,
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Command::Run {
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config_path,
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crypto_store_path,
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} => handle_run(config_path, crypto_store_path).await,
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}
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}
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async fn handle_login(user_id: OwnedUserId, password: &str) -> Result<()> {
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let client = Client::builder().user_id(&user_id).build().await?;
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let resp = client
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.login(user_id.localpart(), password, None, None)
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.await?;
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info!("Config generated. Please store this somewhere (like config.toml)!");
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println!(
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"\n\n{}",
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toml::to_string_pretty(&TomlConfig {
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session: Session {
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access_token: resp.access_token,
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device_id: resp.device_id,
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user_id,
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}
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})?
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);
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Ok(())
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}
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async fn handle_run(config_path: PathBuf, crypto_store_path: PathBuf) -> Result<()> {
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let data = std::fs::read_to_string(config_path)?;
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let config: TomlConfig = toml::from_str(&data)?;
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let client = Client::builder()
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.user_id(&config.session.user_id)
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.crypto_store(Box::new(CryptoStore::open_with_passphrase(
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crypto_store_path,
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None,
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)?))
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.build()
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.await
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.context("s")?;
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client.restore_login(config.session.clone()).await?;
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info!(user = %config.session.user_id, device_id = %config.session.device_id, "Logged in");
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let sync_settings = SyncSettings::default();
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// Sync once before registering events to not double-send events on boot.
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client.sync_once(sync_settings.clone()).await?;
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client
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.register_event_handler(auto_join)
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.await
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.register_event_handler(on_room_message)
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.await;
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// Syncing is important to synchronize the client state with the server.
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// This method will never return.
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client.sync(sync_settings).await;
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Ok(())
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}
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async fn auto_join(room_member: StrippedRoomMemberEvent, client: Client, room: Room) -> Result<()> {
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if Some(room_member.sender) == client.user_id().await {
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return Ok(());
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}
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if let Room::Invited(room) = room {
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info!("Autojoining room {}", room.room_id());
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let mut delay = 2;
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while let Err(err) = room.accept_invitation().await {
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// retry autojoin due to synapse sending invites, before the
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// invited user can join for more information see
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// https://github.com/matrix-org/synapse/issues/4345
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error!(
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room_id = ?room.room_id(),
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?err,
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"Failed to join room, retrying in {delay}s",
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);
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tokio::time::sleep(Duration::from_secs(delay)).await;
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delay *= 2;
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if delay > 3600 {
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error!(
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room_id = ?room.room_id(),
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?err,
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"Failed to join room. Giving up.",
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);
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break;
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}
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}
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info!(room_id = ?room.room_id(), "Successfully joined room.");
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}
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Ok(())
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}
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async fn on_room_message(event: SyncRoomMessageEvent, room: Room, client: Client) -> Result<()> {
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// Ignore messages sent from self.
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if client.user_id().await.as_deref() == Some(event.sender()) {
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return Ok(());
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}
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if let Room::Joined(room) = room {
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parse_message(event, room).await?;
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}
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Ok(())
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}
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async fn parse_message(event: SyncRoomMessageEvent, room: Joined) -> Result<()> {
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room.read_receipt(event.event_id()).await?;
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let message = match &event {
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SyncMessageLikeEvent::Original(OriginalSyncMessageLikeEvent {
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content:
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RoomMessageEventContent {
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msgtype: MessageType::Text(TextMessageEventContent { body, .. }),
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..
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},
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..
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}) => body.clone(),
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_ => return Ok(()),
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};
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if let Some(message) = message.strip_prefix('!') {
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let (command, args) = message.split_once(' ').unwrap_or((message, ""));
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match BotCommand::from_str(command).ok() {
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Some(BotCommand::Source) => source(room).await?,
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Some(BotCommand::Uwu) => uwuify(room, args).await?,
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Some(BotCommand::Ping) => ping(room).await?,
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Some(BotCommand::Help) => help(room).await?,
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_ => unsupported_command(event, room, command).await?,
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}
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}
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Ok(())
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}
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#[derive(IntoEnumIterator)]
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enum BotCommand {
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Help,
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Source,
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Uwu,
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Ping,
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}
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impl BotCommand {
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const fn help_text(&self) -> &'static str {
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match self {
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Self::Source => "Links to the source code for this bot.",
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Self::Uwu => "Uwuifies your message.",
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Self::Ping => "Pong!",
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Self::Help => "Prints this help.",
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}
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}
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}
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impl FromStr for BotCommand {
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type Err = ();
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fn from_str(s: &str) -> std::result::Result<Self, Self::Err> {
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match s.to_lowercase().as_str() {
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"source" => Ok(Self::Source),
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"uwu" => Ok(Self::Uwu),
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"ping" => Ok(Self::Ping),
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"help" => Ok(Self::Help),
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_ => Err(()),
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}
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}
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}
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impl Display for BotCommand {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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match self {
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BotCommand::Source => write!(f, "source"),
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BotCommand::Uwu => write!(f, "uwu"),
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BotCommand::Ping => write!(f, "ping"),
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BotCommand::Help => write!(f, "help"),
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}
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}
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}
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async fn source(room: Joined) -> Result<()> {
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let content = RoomMessageEventContent::text_plain("https://git.eddie.sh/edward/matrix-bot");
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room.send(content, None).await?;
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Ok(())
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}
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async fn uwuify(room: Joined, message: &str) -> Result<()> {
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let message = if message.is_empty() {
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if let Ok(msg) = get_previous_message(&room).await {
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uwuifier::uwuify_str_sse(&msg.body)
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} else {
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"uwu".to_owned()
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}
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} else {
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uwuifier::uwuify_str_sse(message)
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};
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let content = RoomMessageEventContent::text_plain(message);
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room.send(content, None).await?;
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Ok(())
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}
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async fn get_previous_message(room: &Joined) -> Result<TextMessageEventContent> {
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let last_prev_batch = (**room)
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.last_prev_batch()
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.context("No previous batch key while trying to find previous message")?;
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let request = MessagesOptions::backward(&last_prev_batch);
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let messages = room.messages(request).await?;
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messages
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.chunk
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.iter()
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.filter_map(|msg| msg.event.deserialize().ok())
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.find_map(|msg| {
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if let AnyRoomEvent::MessageLike(AnyMessageLikeEvent::RoomMessage(
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MessageLikeEvent::Original(OriginalMessageLikeEvent {
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content:
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RoomMessageEventContent {
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msgtype: MessageType::Text(content),
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..
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},
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..
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}),
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)) = msg
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{
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Some(content)
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} else {
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None
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}
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})
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.context("Failed to find previous message")
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}
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async fn ping(room: Joined) -> Result<()> {
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let content = RoomMessageEventContent::text_plain("Pong!");
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room.send(content, None).await?;
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Ok(())
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}
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async fn help(room: Joined) -> Result<()> {
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let mut msg = "List of commands:\n\n".to_owned();
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for command in BotCommand::into_enum_iter() {
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msg.push_str(&command.to_string());
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msg.push_str(" - ");
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msg.push_str(command.help_text());
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msg.push('\n');
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}
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let content = RoomMessageEventContent::notice_plain(msg);
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room.send(content, None).await?;
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Ok(())
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}
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async fn unsupported_command(
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event: SyncRoomMessageEvent,
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room: Joined,
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command: &str,
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) -> Result<()> {
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// let resp = .into_full_event(room.room_id().to_owned());
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let event = if let SyncRoomMessageEvent::Original(event) = event {
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event.into_full_event(room.room_id().to_owned())
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} else {
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return Ok(());
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};
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let content =
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RoomMessageEventContent::notice_reply_plain(format!("Unknown command `{command}`"), &event);
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room.send(content, None).await?;
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Ok(())
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}
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