multiverse: hide the password by using rpassword to prompt it

Cargo.lock

@@ -3553,6 +3553,7 @@ dependencies = [
  "matrix-sdk",
  "matrix-sdk-ui",
  "ratatui",
+ "rpassword",
  "serde_json",
  "tokio",
  "tracing",
@@ -4827,6 +4828,17 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "rpassword"
+version = "7.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "80472be3c897911d0137b2d2b9055faf6eeac5b14e324073d83bc17b191d7e3f"
+dependencies = [
+ "libc",
+ "rtoolbox",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "rsa"
 version = "0.9.6"
@@ -4847,6 +4859,16 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "rtoolbox"
+version = "0.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c247d24e63230cdb56463ae328478bd5eac8b8faa8c69461a77e8e323afac90e"
+dependencies = [
+ "libc",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "ruma"
 version = "0.9.4"

labs/multiverse/Cargo.toml

@@ -17,6 +17,7 @@ imbl = { workspace = true }
 matrix-sdk = { path = "../../crates/matrix-sdk", features = ["sso-login"] }
 matrix-sdk-ui = { path = "../../crates/matrix-sdk-ui" }
 ratatui = "0.26.1"
+rpassword = "7.3.1"
 serde_json = { workspace = true }
 tokio = { version = "1.24.2", features = ["macros", "rt-multi-thread"] }
 tracing = { workspace = true }

labs/multiverse/src/main.rs

@@ -843,13 +843,9 @@ async fn login_with_password(client: &Client) -> anyhow::Result<()> {
         io::stdin().read_line(&mut username).expect("Unable to read user input");
         username = username.trim().to_owned();
 
-        print!("Password: ");
-        stdout().flush().expect("Unable to write to stdout");
-        let mut password = String::new();
-        io::stdin().read_line(&mut password).expect("Unable to read user input");
-        password = password.trim().to_owned();
+        let password = rpassword::prompt_password("Password.")?;
 
-        match client.matrix_auth().login_username(&username, &password).await {
+        match client.matrix_auth().login_username(&username, password.trim()).await {
             Ok(_) => {
                 println!("Logged in as {username}");
                 break;