ruwuma/ruma-common/src/encryption.rs
2020-08-28 23:37:22 +02:00

92 lines
2.8 KiB
Rust

//! Common types for [encryption] related tasks.
//!
//! [encryption]: https://matrix.org/docs/spec/client_server/r0.6.1#id76
use std::collections::BTreeMap;
use ruma_api::Outgoing;
use ruma_identifiers::{DeviceId, DeviceKeyId, EventEncryptionAlgorithm, UserId};
use ruma_serde::CanBeEmpty;
use serde::Serialize;
/// Identity keys for a device.
#[derive(Clone, Debug, Outgoing, Serialize)]
#[non_exhaustive]
#[incoming_derive(Clone, Serialize)]
pub struct DeviceKeys<'a> {
/// The ID of the user the device belongs to. Must match the user ID used when logging in.
pub user_id: &'a UserId,
/// The ID of the device these keys belong to. Must match the device ID used when logging in.
pub device_id: &'a DeviceId,
/// The encryption algorithms supported by this device.
pub algorithms: &'a [EventEncryptionAlgorithm],
/// Public identity keys.
pub keys: BTreeMap<DeviceKeyId, String>,
/// Signatures for the device key object.
pub signatures: BTreeMap<UserId, BTreeMap<DeviceKeyId, String>>,
/// Additional data added to the device key information by intermediate servers, and
/// not covered by the signatures.
#[serde(skip_serializing_if = "ruma_serde::is_empty")]
pub unsigned: UnsignedDeviceInfo<'a>,
}
impl<'a> DeviceKeys<'a> {
/// Creates a new `DeviceKeys` from the given user id, device id, algorithms, keys and
/// signatures.
pub fn new(
user_id: &'a UserId,
device_id: &'a DeviceId,
algorithms: &'a [EventEncryptionAlgorithm],
keys: BTreeMap<DeviceKeyId, String>,
signatures: BTreeMap<UserId, BTreeMap<DeviceKeyId, String>>,
) -> Self {
Self { user_id, device_id, algorithms, keys, signatures, unsigned: Default::default() }
}
}
/// Additional data added to device key information by intermediate servers.
#[derive(Clone, Debug, Default, Outgoing, Serialize)]
#[non_exhaustive]
#[incoming_derive(Clone, Serialize)]
pub struct UnsignedDeviceInfo<'a> {
/// The display name which the user set on the device.
#[serde(skip_serializing_if = "Option::is_none")]
pub device_display_name: Option<&'a str>,
}
impl UnsignedDeviceInfo<'_> {
/// Creates an empty `UnsignedDeviceInfo`.
pub fn new() -> Self {
Default::default()
}
/// Checks whether all fields are empty / `None`.
pub fn is_empty(&self) -> bool {
self.device_display_name.is_none()
}
}
impl IncomingUnsignedDeviceInfo {
/// Checks whether all fields are empty / `None`.
pub fn is_empty(&self) -> bool {
self.device_display_name.is_none()
}
}
impl CanBeEmpty for UnsignedDeviceInfo<'_> {
fn is_empty(&self) -> bool {
self.is_empty()
}
}
impl CanBeEmpty for IncomingUnsignedDeviceInfo {
fn is_empty(&self) -> bool {
self.is_empty()
}
}