ruwuma/crates/ruma-events/src/room_key_request.rs
2022-02-27 13:54:17 +01:00

103 lines
3.2 KiB
Rust

//! Types for the [`m.room_key_request`] event.
//!
//! [`m.room_key_request`]: https://spec.matrix.org/v1.2/client-server-api/#mroom_key_request
use ruma_identifiers::{DeviceId, EventEncryptionAlgorithm, RoomId, TransactionId};
use ruma_macros::EventContent;
use ruma_serde::StringEnum;
use serde::{Deserialize, Serialize};
use crate::PrivOwnedStr;
/// The content of an `m.room_key_request` event.
#[derive(Clone, Debug, Deserialize, Serialize, EventContent)]
#[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
#[ruma_event(type = "m.room_key_request", kind = ToDevice)]
pub struct ToDeviceRoomKeyRequestEventContent {
/// Whether this is a new key request or a cancellation of a previous request.
pub action: Action,
/// Information about the requested key.
///
/// Required if action is `request`.
pub body: Option<RequestedKeyInfo>,
/// ID of the device requesting the key.
pub requesting_device_id: Box<DeviceId>,
/// A random string uniquely identifying the request for a key.
///
/// If the key is requested multiple times, it should be reused. It should also reused
/// in order to cancel a request.
pub request_id: Box<TransactionId>,
}
impl ToDeviceRoomKeyRequestEventContent {
/// Creates a new `ToDeviceRoomKeyRequestEventContent` with the given action, boyd, device ID
/// and request ID.
pub fn new(
action: Action,
body: Option<RequestedKeyInfo>,
requesting_device_id: Box<DeviceId>,
request_id: Box<TransactionId>,
) -> Self {
Self { action, body, requesting_device_id, request_id }
}
}
/// A new key request or a cancellation of a previous request.
///
/// This type can hold an arbitrary string. To check for formats that are not available as a
/// documented variant here, use its string representation, obtained through `.as_str()`.
#[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
#[ruma_enum(rename_all = "snake_case")]
#[non_exhaustive]
pub enum Action {
/// Request a key.
Request,
/// Cancel a request for a key.
#[ruma_enum(rename = "request_cancellation")]
CancelRequest,
#[doc(hidden)]
_Custom(PrivOwnedStr),
}
impl Action {
/// Creates a string slice from this `Action`.
pub fn as_str(&self) -> &str {
self.as_ref()
}
}
/// Information about a requested key.
#[derive(Clone, Debug, Deserialize, Serialize)]
#[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
pub struct RequestedKeyInfo {
/// The encryption algorithm the requested key in this event is to be used with.
pub algorithm: EventEncryptionAlgorithm,
/// The room where the key is used.
pub room_id: Box<RoomId>,
/// The Curve25519 key of the device which initiated the session originally.
pub sender_key: String,
/// The ID of the session that the key is for.
pub session_id: String,
}
impl RequestedKeyInfo {
/// Creates a new `RequestedKeyInfo` with the given algorithm, room ID, sender key and session
/// ID.
pub fn new(
algorithm: EventEncryptionAlgorithm,
room_id: Box<RoomId>,
sender_key: String,
session_id: String,
) -> Self {
Self { algorithm, room_id, sender_key, session_id }
}
}