matrix-rust-sdk/matrix_sdk/examples/image_bot.rs
2021-02-13 11:01:31 +01:00

126 lines
3.2 KiB
Rust

use std::{
env,
fs::File,
io::{Seek, SeekFrom},
path::PathBuf,
process::exit,
sync::Arc,
};
use tokio::sync::Mutex;
use matrix_sdk::{
self, async_trait,
events::{
room::message::{MessageEventContent, TextMessageEventContent},
SyncMessageEvent,
},
Client, EventHandler, RoomState, SyncSettings,
};
use url::Url;
struct ImageBot {
client: Client,
image: Arc<Mutex<File>>,
}
impl ImageBot {
pub fn new(client: Client, image: File) -> Self {
let image = Arc::new(Mutex::new(image));
Self { client, image }
}
}
#[async_trait]
impl EventHandler for ImageBot {
async fn on_room_message(
&self,
room: RoomState,
event: &SyncMessageEvent<MessageEventContent>,
) {
if let RoomState::Joined(room) = room {
let msg_body = if let SyncMessageEvent {
content: MessageEventContent::Text(TextMessageEventContent { body: msg_body, .. }),
..
} = event
{
msg_body
} else {
return;
};
if msg_body.contains("!image") {
println!("sending image");
let mut image = self.image.lock().await;
self.client
.room_send_attachment(
room.room_id(),
"cat",
&mime::IMAGE_JPEG,
&mut *image,
None,
)
.await
.unwrap();
image.seek(SeekFrom::Start(0)).unwrap();
println!("message sent");
}
}
}
}
async fn login_and_sync(
homeserver_url: String,
username: String,
password: String,
image: File,
) -> Result<(), matrix_sdk::Error> {
let homeserver_url = Url::parse(&homeserver_url).expect("Couldn't parse the homeserver URL");
let client = Client::new(homeserver_url).unwrap();
client
.login(&username, &password, None, Some("command bot"))
.await?;
client.sync_once(SyncSettings::default()).await.unwrap();
client
.set_event_handler(Box::new(ImageBot::new(client.clone(), image)))
.await;
let settings = SyncSettings::default().token(client.sync_token().await.unwrap());
client.sync(settings).await;
Ok(())
}
#[tokio::main]
async fn main() -> Result<(), matrix_sdk::Error> {
tracing_subscriber::fmt::init();
let (homeserver_url, username, password, image_path) = match (
env::args().nth(1),
env::args().nth(2),
env::args().nth(3),
env::args().nth(4),
) {
(Some(a), Some(b), Some(c), Some(d)) => (a, b, c, d),
_ => {
eprintln!(
"Usage: {} <homeserver_url> <username> <password> <image>",
env::args().next().unwrap()
);
exit(1)
}
};
println!(
"helloooo {} {} {} {:#?}",
homeserver_url, username, password, image_path
);
let path = PathBuf::from(image_path);
let image = File::open(path).expect("Can't open image file.");
login_and_sync(homeserver_url, username, password, image).await?;
Ok(())
}