ruwuma/src/r0/sync/sync_events.rs
2020-05-21 23:36:07 +02:00

452 lines
15 KiB
Rust

//! [GET /_matrix/client/r0/sync](https://matrix.org/docs/spec/client_server/r0.6.0#get-matrix-client-r0-sync)
use std::{collections::BTreeMap, time::Duration};
use js_int::UInt;
use ruma_api::ruma_api;
use ruma_events::{
collections::{
all::{RoomEvent, StateEvent},
only::Event as NonRoomEvent,
},
presence::PresenceEvent,
stripped::AnyStrippedStateEvent,
to_device::AnyToDeviceEvent,
EventJson,
};
use ruma_identifiers::RoomId;
use serde::{Deserialize, Serialize};
use crate::r0::{filter::FilterDefinition, keys::KeyAlgorithm};
ruma_api! {
metadata {
description: "Get all new events from all rooms since the last sync or a given point of time.",
method: GET,
name: "sync",
path: "/_matrix/client/r0/sync",
rate_limited: false,
requires_authentication: true,
}
request {
/// A filter represented either as its full JSON definition or the ID of a saved filter.
#[serde(skip_serializing_if = "Option::is_none")]
#[ruma_api(query)]
pub filter: Option<Filter>,
/// A point in time to continue a sync from.
///
/// Should be a token from the `next_batch` field of a previous `/sync`
/// request.
#[serde(skip_serializing_if = "Option::is_none")]
#[ruma_api(query)]
pub since: Option<String>,
/// Controls whether to include the full state for all rooms the user is a member of.
#[serde(default, skip_serializing_if = "ruma_serde::is_default")]
#[ruma_api(query)]
pub full_state: bool,
/// Controls whether the client is automatically marked as online by polling this API.
#[serde(default, skip_serializing_if = "ruma_serde::is_default")]
#[ruma_api(query)]
pub set_presence: SetPresence,
/// The maximum time to poll in milliseconds before returning this request.
#[serde(
with = "ruma_serde::duration::opt_ms",
default,
skip_serializing_if = "Option::is_none",
)]
#[ruma_api(query)]
pub timeout: Option<Duration>,
}
response {
/// The batch token to supply in the `since` param of the next `/sync` request.
pub next_batch: String,
/// Updates to rooms.
#[serde(default, skip_serializing_if = "Rooms::is_empty")]
pub rooms: Rooms,
/// Updates to the presence status of other users.
#[serde(default, skip_serializing_if = "Presence::is_empty")]
pub presence: Presence,
/// The global private data created by this user.
#[serde(default, skip_serializing_if = "AccountData::is_empty")]
pub account_data: AccountData,
/// Messages sent dirrectly between devices.
#[serde(default, skip_serializing_if = "ToDevice::is_empty")]
pub to_device: ToDevice,
/// Information on E2E device updates.
///
/// Only present on an incremental sync.
#[serde(skip_serializing_if = "Option::is_none")]
pub device_lists: Option<DeviceLists>,
/// For each key algorithm, the number of unclaimed one-time keys
/// currently held on the server for a device.
#[serde(default, skip_serializing_if = "BTreeMap::is_empty")]
pub device_one_time_keys_count: BTreeMap<KeyAlgorithm, UInt>,
}
error: crate::Error
}
/// Whether to set presence or not during sync.
#[derive(Clone, Copy, Debug, PartialEq, Deserialize, Serialize)]
#[serde(rename_all = "lowercase")]
pub enum SetPresence {
/// Do not set the presence of the user calling this API.
Offline,
/// Mark client as online explicitly. Assumed by default.
Online,
/// Mark client as being idle.
Unavailable,
}
impl Default for SetPresence {
fn default() -> Self {
Self::Online
}
}
/// A filter represented either as its full JSON definition or the ID of a saved filter.
#[derive(Clone, Debug, Deserialize, Serialize)]
#[allow(clippy::large_enum_variant)]
#[serde(untagged)]
pub enum Filter {
// The filter definition needs to be (de)serialized twice because it is a URL-encoded JSON
// string. Since #[ruma_api(query)] only does the latter and this is a very uncommon
// setup, we implement it through custom serde logic for this specific enum variant rather than
// adding another ruma_api attribute.
//
// On the deserialization side, because this is an enum with #[serde(untagged)], serde will
// try the variants in order (https://serde.rs/enum-representations.html). That means because
// FilterDefinition is the first variant, JSON decoding is attempted first which is almost
// functionally equivalent to looking at whether the first symbol is a '{' as the spec says.
// (there are probably some corner cases like leading whitespace)
#[serde(with = "ruma_serde::json_string")]
/// A complete filter definition serialized to JSON.
FilterDefinition(FilterDefinition),
/// The ID of a filter saved on the server.
FilterId(String),
}
/// Updates to rooms.
#[derive(Clone, Debug, Default, Deserialize, Serialize)]
pub struct Rooms {
/// The rooms that the user has left or been banned from.
pub leave: BTreeMap<RoomId, LeftRoom>,
/// The rooms that the user has joined.
pub join: BTreeMap<RoomId, JoinedRoom>,
/// The rooms that the user has been invited to.
pub invite: BTreeMap<RoomId, InvitedRoom>,
}
impl Rooms {
fn is_empty(&self) -> bool {
self.leave.is_empty() && self.join.is_empty() && self.invite.is_empty()
}
}
/// Historical updates to left rooms.
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct LeftRoom {
/// The timeline of messages and state changes in the room up to the point when the user
/// left.
pub timeline: Timeline,
/// The state updates for the room up to the start of the timeline.
pub state: State,
/// The private data that this user has attached to this room.
#[serde(skip_serializing_if = "Option::is_none")]
pub account_data: Option<AccountData>,
}
/// Updates to joined rooms.
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct JoinedRoom {
/// Information about the room which clients may need to correctly render it
/// to users.
pub summary: RoomSummary,
/// Counts of unread notifications for this room.
pub unread_notifications: UnreadNotificationsCount,
/// The timeline of messages and state changes in the room.
pub timeline: Timeline,
/// Updates to the state, between the time indicated by the `since` parameter, and the start
/// of the `timeline` (or all state up to the start of the `timeline`, if `since` is not
/// given, or `full_state` is true).
pub state: State,
/// The private data that this user has attached to this room.
#[serde(skip_serializing_if = "Option::is_none")]
pub account_data: Option<AccountData>,
/// The ephemeral events in the room that aren't recorded in the timeline or state of the
/// room. e.g. typing.
pub ephemeral: Ephemeral,
}
/// unread notifications count
#[derive(Clone, Copy, Debug, Deserialize, Serialize)]
pub struct UnreadNotificationsCount {
/// The number of unread notifications for this room with the highlight flag set.
#[serde(skip_serializing_if = "Option::is_none")]
pub highlight_count: Option<UInt>,
/// The total number of unread notifications for this room.
#[serde(skip_serializing_if = "Option::is_none")]
pub notification_count: Option<UInt>,
}
/// Events in the room.
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct Timeline {
/// True if the number of events returned was limited by the `limit` on the filter.
#[serde(skip_serializing_if = "Option::is_none")]
pub limited: Option<bool>,
/// A token that can be supplied to to the `from` parameter of the
/// `/rooms/{roomId}/messages` endpoint.
#[serde(skip_serializing_if = "Option::is_none")]
pub prev_batch: Option<String>,
/// A list of events.
pub events: Vec<EventJson<RoomEvent>>,
}
/// State events in the room.
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct State {
/// A list of state events.
pub events: Vec<EventJson<StateEvent>>,
}
/// The private data that this user has attached to this room.
#[derive(Clone, Debug, Default, Deserialize, Serialize)]
pub struct AccountData {
/// A list of events.
pub events: Vec<EventJson<NonRoomEvent>>,
}
impl AccountData {
fn is_empty(&self) -> bool {
self.events.is_empty()
}
}
/// Ephemeral events not recorded in the timeline or state of the room.
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct Ephemeral {
/// A list of events.
pub events: Vec<EventJson<NonRoomEvent>>,
}
/// Information about room for rendering to clients.
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct RoomSummary {
/// Users which can be used to generate a room name if the room does not have
/// one. Required if room name or canonical aliases are not set or empty.
#[serde(rename = "m.heroes", default, skip_serializing_if = "Vec::is_empty")]
pub heroes: Vec<String>,
/// Number of users whose membership status is `join`.
/// Required if field has changed since last sync; otherwise, it may be
/// omitted.
#[serde(
rename = "m.joined_member_count",
skip_serializing_if = "Option::is_none"
)]
pub joined_member_count: Option<UInt>,
/// Number of users whose membership status is `invite`.
/// Required if field has changed since last sync; otherwise, it may be
/// omitted.
#[serde(
rename = "m.invited_member_count",
skip_serializing_if = "Option::is_none"
)]
pub invited_member_count: Option<UInt>,
}
/// Updates to the rooms that the user has been invited to.
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct InvitedRoom {
/// The state of a room that the user has been invited to.
pub invite_state: InviteState,
}
/// The state of a room that the user has been invited to.
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct InviteState {
/// A list of state events.
pub events: Vec<EventJson<AnyStrippedStateEvent>>,
}
/// Updates to the presence status of other users.
#[derive(Clone, Debug, Default, Deserialize, Serialize)]
pub struct Presence {
/// A list of events.
pub events: Vec<EventJson<PresenceEvent>>,
}
impl Presence {
fn is_empty(&self) -> bool {
self.events.is_empty()
}
}
/// Messages sent dirrectly between devices.
#[derive(Clone, Debug, Default, Deserialize, Serialize)]
pub struct ToDevice {
/// A list of to-device events.
pub events: Vec<EventJson<AnyToDeviceEvent>>,
}
impl ToDevice {
fn is_empty(&self) -> bool {
self.events.is_empty()
}
}
/// Information on E2E device udpates.
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct DeviceLists {
/// List of users who have updated their device identity keys or who now
/// share an encrypted room with the client since the previous sync
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub changed: Vec<UserId>,
/// List of users who no longer share encrypted rooms since the previous sync
/// response.
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub left: Vec<UserId>,
}
#[cfg(test)]
mod tests {
use std::{convert::TryInto, time::Duration};
use matches::assert_matches;
use super::{Filter, Request, SetPresence};
#[test]
fn serialize_all_params() {
let req: http::Request<Vec<u8>> = Request {
filter: Some(Filter::FilterId("66696p746572".into())),
since: Some("s72594_4483_1934".into()),
full_state: true,
set_presence: SetPresence::Offline,
timeout: Some(Duration::from_millis(30000)),
}
.try_into()
.unwrap();
let uri = req.uri();
let query = uri.query().unwrap();
assert_eq!(uri.path(), "/_matrix/client/r0/sync");
assert!(query.contains("filter=66696p746572"));
assert!(query.contains("since=s72594_4483_1934"));
assert!(query.contains("full_state=true"));
assert!(query.contains("set_presence=offline"));
assert!(query.contains("timeout=30000"))
}
#[test]
fn deserialize_all_query_params() {
let uri = http::Uri::builder()
.scheme("https")
.authority("matrix.org")
.path_and_query(
"/_matrix/client/r0/sync\
?filter=myfilter\
&since=myts\
&full_state=false\
&set_presence=offline\
&timeout=5000",
)
.build()
.unwrap();
let req: Request = http::Request::builder()
.uri(uri)
.body(Vec::<u8>::new())
.unwrap()
.try_into()
.unwrap();
assert_matches!(req.filter, Some(Filter::FilterId(id)) if id == "myfilter");
assert_eq!(req.since, Some("myts".into()));
assert_eq!(req.full_state, false);
assert_eq!(req.set_presence, SetPresence::Offline);
assert_eq!(req.timeout, Some(Duration::from_millis(5000)));
}
#[test]
fn deserialize_no_query_params() {
let uri = http::Uri::builder()
.scheme("https")
.authority("matrix.org")
.path_and_query("/_matrix/client/r0/sync")
.build()
.unwrap();
let req: Request = http::Request::builder()
.uri(uri)
.body(Vec::<u8>::new())
.unwrap()
.try_into()
.unwrap();
assert_matches!(req.filter, None);
assert_eq!(req.since, None);
assert_eq!(req.full_state, false);
assert_eq!(req.set_presence, SetPresence::Online);
assert_eq!(req.timeout, None);
}
#[test]
fn deserialize_some_query_params() {
let uri = http::Uri::builder()
.scheme("https")
.authority("matrix.org")
.path_and_query(
"/_matrix/client/r0/sync\
?filter=EOKFFmdZYF\
&timeout=0",
)
.build()
.unwrap();
let req: Request = http::Request::builder()
.uri(uri)
.body(Vec::<u8>::new())
.unwrap()
.try_into()
.unwrap();
assert_matches!(req.filter, Some(Filter::FilterId(id)) if id == "EOKFFmdZYF");
assert_eq!(req.since, None);
assert_eq!(req.full_state, false);
assert_eq!(req.set_presence, SetPresence::Online);
assert_eq!(req.timeout, Some(Duration::from_millis(0)));
}
}