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Implement devices API (#20)

Browse source 
small improvements

Cargo fmt

Simplify insert and update methods

Review feedback

Remove has_device method calls

Load all devices with a single db call

Remove device as in logout

Put all metadata on the same tree

Create userdevice key fucntion

Implement devices API

Implement all the devices endpoints. There's a couple of pending tasks:

- Integrate the "logout" logic once it lands to master (this should
  remove the given device from the database).
- Track and store last seen timestamp and IP.

Co-authored-by: timokoesters <timo@koesters.xyz>
Co-authored-by: Guillem Nieto <gnieto.talo@gmail.com>
This commit is contained in:
gnieto 2020-06-03 13:41:30 +02:00 committed by Timo Kösters
parent 720d48bd67
commit ed9b544ace
4 changed files with 190 additions and 26 deletions
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99
src/client_server.rs
View file

@ -13,6 +13,9 @@ use ruma_client_api::{
alias::{create_alias, delete_alias, get_alias},
capabilities::get_capabilities,
config::{get_global_account_data, set_global_account_data},
device::{
self, delete_device, delete_devices, get_device, get_devices, update_device,
},
directory::{
self, get_public_rooms, get_public_rooms_filtered, get_room_visibility,
set_room_visibility,
@ -52,7 +55,7 @@ use ruma_events::{
room::{canonical_alias, guest_access, history_visibility, join_rules, member, redaction},
EventJson, EventType,
};
use ruma_identifiers::{RoomAliasId, RoomId, RoomVersionId, UserId};
use ruma_identifiers::{DeviceId, RoomAliasId, RoomId, RoomVersionId, UserId};
use serde_json::{json, value::RawValue};
use crate::{server_server, utils, Database, MatrixResult, Ruma};
@ -173,7 +176,7 @@ pub fn register_route(
// Generate new device id if the user didn't specify one
let device_id = body
.device_id
.device_id.clone()
.unwrap_or_else(|| utils::random_string(DEVICE_ID_LENGTH));
// Generate new token for the device
@ -181,7 +184,7 @@ pub fn register_route(
// Add device
db.users
.create_device(&user_id, &device_id, &token)
.create_device(&user_id, &device_id, &token, body.initial_device_display_name.clone())
.unwrap();
// Initial data
@ -300,6 +303,7 @@ pub fn login_route(
let device_id = body
.body
.device_id
.clone()
.unwrap_or_else(|| utils::random_string(DEVICE_ID_LENGTH));
// Generate a new token for the device
@ -307,7 +311,7 @@ pub fn login_route(
// Add device
db.users
.create_device(&user_id, &device_id, &token)
.create_device(&user_id, &device_id, &token, body.initial_device_display_name.clone())
.unwrap();
MatrixResult(Ok(login::Response {
@ -2430,6 +2434,93 @@ pub fn get_content_thumbnail_route(
}
}
#[get("/_matrix/client/r0/devices", data = "<body>")]
pub fn get_devices_route(
db: State<'_, Database>,
body: Ruma<get_devices::Request>,
) -> MatrixResult<get_devices::Response> {
let user_id = body.user_id.as_ref().expect("user is authenticated");
let devices = db
.users
.all_devices_metadata(user_id)
.map(|r| r.unwrap())
.collect::<Vec<device::Device>>();
MatrixResult(Ok(get_devices::Response { devices }))
}
#[get("/_matrix/client/r0/devices/<device_id>", data = "<body>")]
pub fn get_device_route(
db: State<'_, Database>,
body: Ruma<get_device::Request>,
device_id: DeviceId,
) -> MatrixResult<get_device::Response> {
let user_id = body.user_id.as_ref().expect("user is authenticated");
let device = db.users.get_device_metadata(&user_id, &device_id).unwrap();
match device {
None => MatrixResult(Err(Error {
kind: ErrorKind::NotFound,
message: "Device not found".to_string(),
status_code: http::StatusCode::NOT_FOUND,
})),
Some(device) => MatrixResult(Ok(get_device::Response { device })),
}
}
#[put("/_matrix/client/r0/devices/<device_id>", data = "<body>")]
pub fn update_device_route(
db: State<'_, Database>,
body: Ruma<update_device::Request>,
device_id: DeviceId,
) -> MatrixResult<update_device::Response> {
let user_id = body.user_id.as_ref().expect("user is authenticated");
let device = db.users.get_device_metadata(&user_id, &device_id).unwrap();
match device {
None => MatrixResult(Err(Error {
kind: ErrorKind::NotFound,
message: "Device not found".to_string(),
status_code: http::StatusCode::NOT_FOUND,
})),
Some(mut device) => {
device.display_name = body.display_name.clone();
db.users
.update_device_metadata(&user_id, &device_id, &device)
.unwrap();
MatrixResult(Ok(update_device::Response))
}
}
}
#[delete("/_matrix/client/r0/devices/<device_id>", data = "<body>")]
pub fn delete_device_route(
db: State<'_, Database>,
body: Ruma<delete_device::Request>,
device_id: DeviceId,
) -> MatrixResult<delete_device::Response> {
let user_id = body.user_id.as_ref().expect("user is authenticated");
db.users.remove_device(&user_id, &device_id).unwrap();
MatrixResult(Ok(delete_device::Response))
}
#[post("/_matrix/client/r0/delete_devices", data = "<body>")]
pub fn delete_devices_route(
db: State<'_, Database>,
body: Ruma<delete_devices::Request>,
) -> MatrixResult<delete_devices::Response> {
let user_id = body.user_id.as_ref().expect("user is authenticated");
for device_id in &body.devices {
db.users.remove_device(&user_id, &device_id).unwrap()
}
MatrixResult(Ok(delete_devices::Response))
}
#[options("/<_segments..>")]
pub fn options_route(
_segments: rocket::http::uri::Segments<'_>,

2
src/database.rs
View file

@ -56,10 +56,10 @@ impl Database {
),
users: users::Users {
userid_password: db.open_tree("userid_password").unwrap(),
userdeviceids: db.open_tree("userdeviceids").unwrap(),
userid_displayname: db.open_tree("userid_displayname").unwrap(),
userid_avatarurl: db.open_tree("userid_avatarurl").unwrap(),
userdeviceid_token: db.open_tree("userdeviceid_token").unwrap(),
userdeviceid_metadata: db.open_tree("userdeviceid_metadata").unwrap(),
token_userdeviceid: db.open_tree("token_userdeviceid").unwrap(),
onetimekeyid_onetimekeys: db.open_tree("onetimekeyid_onetimekeys").unwrap(),
userdeviceid_devicekeys: db.open_tree("userdeviceid_devicekeys").unwrap(),

96
src/database/users.rs
View file

@ -1,16 +1,19 @@
use crate::{utils, Error, Result};
use js_int::UInt;
use ruma_client_api::r0::keys::{AlgorithmAndDeviceId, DeviceKeys, KeyAlgorithm, OneTimeKey};
use ruma_client_api::r0::{
device::Device,
keys::{AlgorithmAndDeviceId, DeviceKeys, KeyAlgorithm, OneTimeKey},
};
use ruma_events::{to_device::AnyToDeviceEvent, EventJson, EventType};
use ruma_identifiers::{DeviceId, UserId};
use std::{collections::BTreeMap, convert::TryFrom};
use std::{collections::BTreeMap, convert::TryFrom, time::SystemTime};
pub struct Users {
pub(super) userid_password: sled::Tree,
pub(super) userid_displayname: sled::Tree,
pub(super) userid_avatarurl: sled::Tree,
pub(super) userdeviceids: sled::Tree,
pub(super) userdeviceid_token: sled::Tree,
pub(super) userdeviceid_metadata: sled::Tree, // This is also used to check if a device exists
pub(super) token_userdeviceid: sled::Tree,
pub(super) onetimekeyid_onetimekeys: sled::Tree, // OneTimeKeyId = UserId + AlgorithmAndDeviceId
@ -105,25 +108,40 @@ impl Users {
}
/// Adds a new device to a user.
pub fn create_device(&self, user_id: &UserId, device_id: &DeviceId, token: &str) -> Result<()> {
pub fn create_device(
&self,
user_id: &UserId,
device_id: &DeviceId,
token: &str,
initial_device_display_name: Option<String>,
) -> Result<()> {
if !self.exists(user_id)? {
return Err(Error::BadRequest(
"tried to create device for nonexistent user",
));
}
let mut key = user_id.to_string().as_bytes().to_vec();
key.push(0xff);
key.extend_from_slice(device_id.as_bytes());
let mut userdeviceid = user_id.to_string().as_bytes().to_vec();
userdeviceid.push(0xff);
userdeviceid.extend_from_slice(device_id.as_bytes());
self.userdeviceids.insert(key, &[])?;
self.userdeviceid_metadata.insert(
userdeviceid,
serde_json::to_string(&Device {
device_id: device_id.clone(),
display_name: initial_device_display_name,
last_seen_ip: None, // TODO
last_seen_ts: Some(SystemTime::now()),
})?
.as_bytes(),
)?;
self.set_token(user_id, device_id, token)?;
Ok(())
}
/// Removes a device from a user
/// Removes a device from a user.
pub fn remove_device(&self, user_id: &UserId, device_id: &DeviceId) -> Result<()> {
let mut userdeviceid = user_id.to_string().as_bytes().to_vec();
userdeviceid.push(0xff);
@ -147,8 +165,7 @@ impl Users {
// TODO: Remove onetimekeys
// Remove the device
self.userdeviceids.remove(userdeviceid)?;
self.userdeviceid_metadata.remove(&userdeviceid)?;
Ok(())
}
@ -157,7 +174,11 @@ impl Users {
pub fn all_device_ids(&self, user_id: &UserId) -> impl Iterator<Item = Result<DeviceId>> {
let mut prefix = user_id.to_string().as_bytes().to_vec();
prefix.push(0xff);
self.userdeviceids.scan_prefix(prefix).keys().map(|bytes| {
// All devices have metadata
self.userdeviceid_metadata
.scan_prefix(prefix)
.keys()
.map(|bytes| {
Ok(utils::string_from_bytes(
&*bytes?
.rsplit(|&b| b == 0xff)
@ -173,7 +194,8 @@ impl Users {
userdeviceid.push(0xff);
userdeviceid.extend_from_slice(device_id.as_bytes());
if self.userdeviceids.get(&userdeviceid)?.is_none() {
// All devices have metadata
if self.userdeviceid_metadata.get(&userdeviceid)?.is_none() {
return Err(Error::BadRequest(
"Tried to set token for nonexistent device",
));
@ -203,7 +225,8 @@ impl Users {
key.push(0xff);
key.extend_from_slice(device_id.as_bytes());
if self.userdeviceids.get(&key)?.is_none() {
// All devices have metadata
if self.userdeviceid_metadata.get(&key)?.is_none() {
return Err(Error::BadRequest(
"Tried to set token for nonexistent device",
));
@ -396,4 +419,49 @@ impl Users {
Ok(events)
}
pub fn update_device_metadata(
&self,
user_id: &UserId,
device_id: &DeviceId,
device: &Device,
) -> Result<()> {
let mut userdeviceid = user_id.to_string().as_bytes().to_vec();
userdeviceid.push(0xff);
userdeviceid.extend_from_slice(device_id.as_bytes());
if self.userdeviceid_metadata.get(userdeviceid)?.is_none() {
return Err(Error::BadRequest("device does not exist"));
}
self.userdeviceid_metadata
.insert(userdeviceid, serde_json::to_string(device)?.as_bytes())?;
Ok(())
}
/// Get device metadata.
pub fn get_device_metadata(
&self,
user_id: &UserId,
device_id: &DeviceId,
) -> Result<Option<Device>> {
let mut userdeviceid = user_id.to_string().as_bytes().to_vec();
userdeviceid.push(0xff);
userdeviceid.extend_from_slice(device_id.as_bytes());
self.userdeviceid_metadata
.get(&userdeviceid)?
.map_or(Ok(None), |bytes| Ok(Some(serde_json::from_slice(&bytes)?)))
}
pub fn all_devices_metadata(&self, user_id: &UserId) -> impl Iterator<Item = Result<Device>> {
let mut key = user_id.to_string().as_bytes().to_vec();
key.push(0xff);
self.userdeviceid_metadata
.scan_prefix(key)
.values()
.map(|bytes| Ok(serde_json::from_slice::<Device>(&bytes?)?))
}
}

5
src/main.rs
View file

@ -81,6 +81,11 @@ fn setup_rocket() -> rocket::Rocket {
client_server::create_content_route,
client_server::get_content_route,
client_server::get_content_thumbnail_route,
client_server::get_devices_route,
client_server::get_device_route,
client_server::update_device_route,
client_server::delete_device_route,
client_server::delete_devices_route,
client_server::options_route,
server_server::well_known_server,
server_server::get_server_version,