matrix-sdk: Add an example that does SAS verification.

matrix_sdk/examples/emoji_verification.rs

@@ -0,0 +1,84 @@
+use std::{env, io, process::exit};
+use url::Url;
+
+use matrix_sdk::{self, events::AnyToDeviceEvent, Client, ClientConfig, SyncSettings};
+
+async fn login(
+    homeserver_url: String,
+    username: String,
+    password: String,
+) -> Result<(), matrix_sdk::Error> {
+    let client_config = ClientConfig::new()
+        .proxy("http://localhost:8080")?
+        .disable_ssl_verification();
+    let homeserver_url = Url::parse(&homeserver_url).expect("Couldn't parse the homeserver URL");
+    let client = Client::new_with_config(homeserver_url, client_config).unwrap();
+
+    client
+        .login(username, password, None, Some("rust-sdk".to_string()))
+        .await?;
+
+    let client_ref = &client;
+
+    client
+        .sync_forever(SyncSettings::new(), |response| async move {
+            let client = &client_ref;
+
+            for event in &response.to_device.events {
+                let e = event
+                    .deserialize()
+                    .expect("Can't deserialize to-device event");
+
+                println!("Received to-device event {:?}", e);
+                match e {
+                    AnyToDeviceEvent::KeyVerificationStart(e) => {
+                        let sas = client
+                            .get_verification(&e.content.transaction_id)
+                            .await
+                            .expect("Sas object wasn't created");
+                        sas.accept().await.unwrap();
+                    }
+                    AnyToDeviceEvent::KeyVerificationKey(e) => {
+                        let sas = client
+                            .get_verification(&e.content.transaction_id)
+                            .await
+                            .expect("Sas object wasn't created");
+                        println!("Emoji: {:?}", sas.emoji());
+
+                        let mut input = String::new();
+                        io::stdin()
+                            .read_line(&mut input)
+                            .expect("error: unable to read user input");
+
+                        match input.trim().to_lowercase().as_ref() {
+                            "yes" | "true" | "ok" => sas.confirm().await.unwrap(),
+                            _ => sas.cancel().await.unwrap(),
+                        }
+                    }
+                    _ => (),
+                }
+            }
+        })
+        .await;
+
+    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)
+            }
+        };
+
+    login(homeserver_url, username, password).await
+}