conduit/src/client_server/session.rs

208 lines
6.7 KiB
Rust

use super::{State, DEVICE_ID_LENGTH, TOKEN_LENGTH};
use crate::{utils, ConduitResult, Database, Error, Ruma};
use log::info;
use ruma::{
api::client::{
error::ErrorKind,
r0::session::{get_login_types, login, logout, logout_all},
},
UserId,
};
use serde::Deserialize;
#[derive(Debug, Deserialize)]
struct Claims {
sub: String,
exp: usize,
}
#[cfg(feature = "conduit_bin")]
use rocket::{get, post};
/// # `GET /_matrix/client/r0/login`
///
/// Get the homeserver's supported login types. One of these should be used as the `type` field
/// when logging in.
#[cfg_attr(feature = "conduit_bin", get("/_matrix/client/r0/login"))]
#[tracing::instrument]
pub async fn get_login_types_route() -> ConduitResult<get_login_types::Response> {
Ok(get_login_types::Response::new(vec![get_login_types::LoginType::Password]).into())
}
/// # `POST /_matrix/client/r0/login`
///
/// Authenticates the user and returns an access token it can use in subsequent requests.
///
/// - The returned access token is associated with the user and device
/// - Old access tokens of that device should be invalidated
/// - If `device_id` is unknown, a new device will be created
///
/// Note: You can use [`GET /_matrix/client/r0/login`](fn.get_supported_versions_route.html) to see
/// supported login types.
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/login", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn login_route(
db: State<'_, Database>,
body: Ruma<login::Request<'_>>,
) -> ConduitResult<login::Response> {
// Validate login method
// TODO: Other login methods
let user_id = match &body.login_info {
login::IncomingLoginInfo::Password {
identifier,
password,
} => {
let username = if let login::IncomingUserIdentifier::MatrixId(matrix_id) = identifier {
matrix_id
} else {
return Err(Error::BadRequest(ErrorKind::Forbidden, "Bad login type."));
};
let user_id =
UserId::parse_with_server_name(username.to_owned(), db.globals.server_name())
.map_err(|_| {
Error::BadRequest(ErrorKind::InvalidUsername, "Username is invalid.")
})?;
let hash = db.users.password_hash(&user_id)?.ok_or(Error::BadRequest(
ErrorKind::Forbidden,
"Wrong username or password.",
))?;
if hash.is_empty() {
return Err(Error::BadRequest(
ErrorKind::UserDeactivated,
"The user has been deactivated",
));
}
let hash_matches = argon2::verify_encoded(&hash, password.as_bytes()).unwrap_or(false);
if !hash_matches {
return Err(Error::BadRequest(
ErrorKind::Forbidden,
"Wrong username or password.",
));
}
user_id
}
login::IncomingLoginInfo::Token { token } => {
if let Some(jwt_decoding_key) = db.globals.jwt_decoding_key() {
let token = jsonwebtoken::decode::<Claims>(
&token,
&jwt_decoding_key,
&jsonwebtoken::Validation::default(),
)
.map_err(|_| Error::BadRequest(ErrorKind::InvalidUsername, "Token is invalid."))?;
let username = token.claims.sub;
UserId::parse_with_server_name(username, db.globals.server_name()).map_err(
|_| Error::BadRequest(ErrorKind::InvalidUsername, "Username is invalid."),
)?
} else {
return Err(Error::BadRequest(
ErrorKind::Unknown,
"Token login is not supported (server has no jwt decoding key).",
));
}
}
};
// Generate new device id if the user didn't specify one
let device_id = body
.device_id
.clone()
.unwrap_or_else(|| utils::random_string(DEVICE_ID_LENGTH).into());
// Generate a new token for the device
let token = utils::random_string(TOKEN_LENGTH);
// Determine if device_id was provided and exists in the db for this user
let device_exists = body.device_id.as_ref().map_or(false, |device_id| {
db.users
.all_device_ids(&user_id)
.any(|x| x.as_ref().map_or(false, |v| v == device_id))
});
if device_exists {
db.users.set_token(&user_id, &device_id, &token)?;
} else {
db.users.create_device(
&user_id,
&device_id,
&token,
body.initial_device_display_name.clone(),
)?;
}
info!("{} logged in", user_id);
db.flush().await?;
Ok(login::Response {
user_id,
access_token: token,
home_server: Some(db.globals.server_name().to_owned()),
device_id,
well_known: None,
}
.into())
}
/// # `POST /_matrix/client/r0/logout`
///
/// Log out the current device.
///
/// - Invalidates the access token
/// - Deletes the device and most of it's data (to-device events, last seen, etc.)
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/logout", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn logout_route(
db: State<'_, Database>,
body: Ruma<logout::Request>,
) -> ConduitResult<logout::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
let sender_device = body.sender_device.as_ref().expect("user is authenticated");
db.users.remove_device(&sender_user, sender_device)?;
db.flush().await?;
Ok(logout::Response::new().into())
}
/// # `POST /_matrix/client/r0/logout/all`
///
/// Log out all devices of this user.
///
/// - Invalidates all access tokens
/// - Deletes devices and most of their data (to-device events, last seen, etc.)
///
/// Note: This is equivalent to calling [`GET /_matrix/client/r0/logout`](fn.logout_route.html)
/// from each device of this user.
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/logout/all", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn logout_all_route(
db: State<'_, Database>,
body: Ruma<logout_all::Request>,
) -> ConduitResult<logout_all::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
for device_id in db.users.all_device_ids(sender_user) {
if let Ok(device_id) = device_id {
db.users.remove_device(&sender_user, &device_id)?;
}
}
db.flush().await?;
Ok(logout_all::Response::new().into())
}