matrix-rust-sdk/matrix_sdk/examples/autojoin.rs

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use std::{env, process::exit};
use matrix_sdk::{
self, async_trait,
events::{room::member::MemberEventContent, StrippedStateEvent},
room::Room,
Client, ClientConfig, EventHandler, SyncSettings,
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};
use tokio::time::{sleep, Duration};
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use url::Url;
struct AutoJoinBot {
client: Client,
}
impl AutoJoinBot {
pub fn new(client: Client) -> Self {
Self { client }
}
}
#[async_trait]
impl EventHandler for AutoJoinBot {
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async fn on_stripped_state_member(
&self,
room: Room,
room_member: &StrippedStateEvent<MemberEventContent>,
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_: Option<MemberEventContent>,
) {
if room_member.state_key != self.client.user_id().await.unwrap() {
return;
}
if let Room::Invited(room) = room {
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println!("Autojoining room {}", room.room_id());
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let mut delay = 2;
while let Err(err) = room.accept_invitation().await {
// retry autojoin due to synapse sending invites, before the
// invited user can join for more information see
// https://github.com/matrix-org/synapse/issues/4345
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eprintln!(
"Failed to join room {} ({:?}), retrying in {}s",
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room.room_id(),
err,
delay
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);
sleep(Duration::from_secs(delay)).await;
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delay *= 2;
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if delay > 3600 {
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eprintln!("Can't join room {} ({:?})", room.room_id(), err);
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break;
}
}
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println!("Successfully joined room {}", room.room_id());
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}
}
}
async fn login_and_sync(
homeserver_url: String,
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username: &str,
password: &str,
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) -> Result<(), matrix_sdk::Error> {
let mut home = dirs::home_dir().expect("no home directory found");
home.push("autojoin_bot");
let client_config = ClientConfig::new().store_path(home);
let homeserver_url = Url::parse(&homeserver_url).expect("Couldn't parse the homeserver URL");
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let client = Client::new_with_config(homeserver_url, client_config).unwrap();
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client.login(username, password, None, Some("autojoin bot")).await?;
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println!("logged in as {}", username);
client.set_event_handler(Box::new(AutoJoinBot::new(client.clone()))).await;
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client.sync(SyncSettings::default()).await;
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Ok(())
}
#[tokio::main]
async fn main() -> Result<(), matrix_sdk::Error> {
tracing_subscriber::fmt::init();
let (homeserver_url, username, password) =
match (env::args().nth(1), env::args().nth(2), env::args().nth(3)) {
(Some(a), Some(b), Some(c)) => (a, b, c),
_ => {
eprintln!(
"Usage: {} <homeserver_url> <username> <password>",
env::args().next().unwrap()
);
exit(1)
}
};
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login_and_sync(homeserver_url, &username, &password).await?;
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Ok(())
}