469 lines
16 KiB
Rust
469 lines
16 KiB
Rust
use super::SESSION_ID_LENGTH;
|
|
use crate::{services, utils, Error, Result, Ruma};
|
|
use futures_util::{stream::FuturesUnordered, StreamExt};
|
|
use ruma::{
|
|
api::{
|
|
client::{
|
|
error::ErrorKind,
|
|
keys::{
|
|
claim_keys, get_key_changes, get_keys, upload_keys, upload_signatures,
|
|
upload_signing_keys,
|
|
},
|
|
uiaa::{AuthFlow, AuthType, UiaaInfo},
|
|
},
|
|
federation,
|
|
},
|
|
serde::Raw,
|
|
DeviceKeyAlgorithm, OwnedDeviceId, OwnedUserId, UserId,
|
|
};
|
|
use serde_json::json;
|
|
use std::collections::{BTreeMap, HashMap, HashSet};
|
|
|
|
/// # `POST /_matrix/client/r0/keys/upload`
|
|
///
|
|
/// Publish end-to-end encryption keys for the sender device.
|
|
///
|
|
/// - Adds one time keys
|
|
/// - If there are no device keys yet: Adds device keys (TODO: merge with existing keys?)
|
|
pub async fn upload_keys_route(
|
|
body: Ruma<upload_keys::v3::Request>,
|
|
) -> Result<upload_keys::v3::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");
|
|
|
|
for (key_key, key_value) in &body.one_time_keys {
|
|
services()
|
|
.users
|
|
.add_one_time_key(sender_user, sender_device, key_key, key_value)?;
|
|
}
|
|
|
|
if let Some(device_keys) = &body.device_keys {
|
|
// TODO: merge this and the existing event?
|
|
// This check is needed to assure that signatures are kept
|
|
if services()
|
|
.users
|
|
.get_device_keys(sender_user, sender_device)?
|
|
.is_none()
|
|
{
|
|
services()
|
|
.users
|
|
.add_device_keys(sender_user, sender_device, device_keys)?;
|
|
}
|
|
}
|
|
|
|
Ok(upload_keys::v3::Response {
|
|
one_time_key_counts: services()
|
|
.users
|
|
.count_one_time_keys(sender_user, sender_device)?,
|
|
})
|
|
}
|
|
|
|
/// # `POST /_matrix/client/r0/keys/query`
|
|
///
|
|
/// Get end-to-end encryption keys for the given users.
|
|
///
|
|
/// - Always fetches users from other servers over federation
|
|
/// - Gets master keys, self-signing keys, user signing keys and device keys.
|
|
/// - The master and self-signing keys contain signatures that the user is allowed to see
|
|
pub async fn get_keys_route(
|
|
body: Ruma<get_keys::v3::IncomingRequest>,
|
|
) -> Result<get_keys::v3::Response> {
|
|
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
|
|
|
|
let response =
|
|
get_keys_helper(Some(sender_user), &body.device_keys, |u| u == sender_user).await?;
|
|
|
|
Ok(response)
|
|
}
|
|
|
|
/// # `POST /_matrix/client/r0/keys/claim`
|
|
///
|
|
/// Claims one-time keys
|
|
pub async fn claim_keys_route(
|
|
body: Ruma<claim_keys::v3::Request>,
|
|
) -> Result<claim_keys::v3::Response> {
|
|
let response = claim_keys_helper(&body.one_time_keys).await?;
|
|
|
|
Ok(response)
|
|
}
|
|
|
|
/// # `POST /_matrix/client/r0/keys/device_signing/upload`
|
|
///
|
|
/// Uploads end-to-end key information for the sender user.
|
|
///
|
|
/// - Requires UIAA to verify password
|
|
pub async fn upload_signing_keys_route(
|
|
body: Ruma<upload_signing_keys::v3::IncomingRequest>,
|
|
) -> Result<upload_signing_keys::v3::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");
|
|
|
|
// UIAA
|
|
let mut uiaainfo = UiaaInfo {
|
|
flows: vec![AuthFlow {
|
|
stages: vec![AuthType::Password],
|
|
}],
|
|
completed: Vec::new(),
|
|
params: Default::default(),
|
|
session: None,
|
|
auth_error: None,
|
|
};
|
|
|
|
if let Some(auth) = &body.auth {
|
|
let (worked, uiaainfo) =
|
|
services()
|
|
.uiaa
|
|
.try_auth(sender_user, sender_device, auth, &uiaainfo)?;
|
|
if !worked {
|
|
return Err(Error::Uiaa(uiaainfo));
|
|
}
|
|
// Success!
|
|
} else if let Some(json) = body.json_body {
|
|
uiaainfo.session = Some(utils::random_string(SESSION_ID_LENGTH));
|
|
services()
|
|
.uiaa
|
|
.create(sender_user, sender_device, &uiaainfo, &json)?;
|
|
return Err(Error::Uiaa(uiaainfo));
|
|
} else {
|
|
return Err(Error::BadRequest(ErrorKind::NotJson, "Not json."));
|
|
}
|
|
|
|
if let Some(master_key) = &body.master_key {
|
|
services().users.add_cross_signing_keys(
|
|
sender_user,
|
|
master_key,
|
|
&body.self_signing_key,
|
|
&body.user_signing_key,
|
|
)?;
|
|
}
|
|
|
|
Ok(upload_signing_keys::v3::Response {})
|
|
}
|
|
|
|
/// # `POST /_matrix/client/r0/keys/signatures/upload`
|
|
///
|
|
/// Uploads end-to-end key signatures from the sender user.
|
|
pub async fn upload_signatures_route(
|
|
body: Ruma<upload_signatures::v3::Request>,
|
|
) -> Result<upload_signatures::v3::Response> {
|
|
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
|
|
|
|
for (user_id, keys) in &body.signed_keys {
|
|
for (key_id, key) in keys {
|
|
let key = serde_json::to_value(key)
|
|
.map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "Invalid key JSON"))?;
|
|
|
|
let is_signature_key = match key.get("usage") {
|
|
Some(usage) => usage
|
|
.as_array()
|
|
.map(|usage| !usage.contains(&json!("master")))
|
|
.unwrap_or(false),
|
|
None => true,
|
|
};
|
|
|
|
if !is_signature_key {
|
|
continue;
|
|
}
|
|
|
|
for signature in key
|
|
.get("signatures")
|
|
.ok_or(Error::BadRequest(
|
|
ErrorKind::InvalidParam,
|
|
"Missing signatures field.",
|
|
))?
|
|
.get(sender_user.to_string())
|
|
.ok_or(Error::BadRequest(
|
|
ErrorKind::InvalidParam,
|
|
"Invalid user in signatures field.",
|
|
))?
|
|
.as_object()
|
|
.ok_or(Error::BadRequest(
|
|
ErrorKind::InvalidParam,
|
|
"Invalid signature.",
|
|
))?
|
|
.clone()
|
|
.into_iter()
|
|
{
|
|
// Signature validation?
|
|
let signature = (
|
|
signature.0,
|
|
signature
|
|
.1
|
|
.as_str()
|
|
.ok_or(Error::BadRequest(
|
|
ErrorKind::InvalidParam,
|
|
"Invalid signature value.",
|
|
))?
|
|
.to_owned(),
|
|
);
|
|
services()
|
|
.users
|
|
.sign_key(user_id, key_id, signature, sender_user)?;
|
|
}
|
|
}
|
|
}
|
|
|
|
Ok(upload_signatures::v3::Response {
|
|
failures: BTreeMap::new(), // TODO: integrate
|
|
})
|
|
}
|
|
|
|
/// # `POST /_matrix/client/r0/keys/changes`
|
|
///
|
|
/// Gets a list of users who have updated their device identity keys since the previous sync token.
|
|
///
|
|
/// - TODO: left users
|
|
pub async fn get_key_changes_route(
|
|
body: Ruma<get_key_changes::v3::IncomingRequest>,
|
|
) -> Result<get_key_changes::v3::Response> {
|
|
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
|
|
|
|
let mut device_list_updates = HashSet::new();
|
|
|
|
device_list_updates.extend(
|
|
services()
|
|
.users
|
|
.keys_changed(
|
|
sender_user.as_str(),
|
|
body.from
|
|
.parse()
|
|
.map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "Invalid `from`."))?,
|
|
Some(
|
|
body.to
|
|
.parse()
|
|
.map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "Invalid `to`."))?,
|
|
),
|
|
)
|
|
.filter_map(|r| r.ok()),
|
|
);
|
|
|
|
for room_id in services()
|
|
.rooms
|
|
.state_cache
|
|
.rooms_joined(sender_user)
|
|
.filter_map(|r| r.ok())
|
|
{
|
|
device_list_updates.extend(
|
|
services()
|
|
.users
|
|
.keys_changed(
|
|
room_id.as_ref(),
|
|
body.from.parse().map_err(|_| {
|
|
Error::BadRequest(ErrorKind::InvalidParam, "Invalid `from`.")
|
|
})?,
|
|
Some(body.to.parse().map_err(|_| {
|
|
Error::BadRequest(ErrorKind::InvalidParam, "Invalid `to`.")
|
|
})?),
|
|
)
|
|
.filter_map(|r| r.ok()),
|
|
);
|
|
}
|
|
Ok(get_key_changes::v3::Response {
|
|
changed: device_list_updates.into_iter().collect(),
|
|
left: Vec::new(), // TODO
|
|
})
|
|
}
|
|
|
|
pub(crate) async fn get_keys_helper<F: Fn(&UserId) -> bool>(
|
|
sender_user: Option<&UserId>,
|
|
device_keys_input: &BTreeMap<OwnedUserId, Vec<OwnedDeviceId>>,
|
|
allowed_signatures: F,
|
|
) -> Result<get_keys::v3::Response> {
|
|
let mut master_keys = BTreeMap::new();
|
|
let mut self_signing_keys = BTreeMap::new();
|
|
let mut user_signing_keys = BTreeMap::new();
|
|
let mut device_keys = BTreeMap::new();
|
|
|
|
let mut get_over_federation = HashMap::new();
|
|
|
|
for (user_id, device_ids) in device_keys_input {
|
|
let user_id: &UserId = user_id;
|
|
|
|
if user_id.server_name() != services().globals.server_name() {
|
|
get_over_federation
|
|
.entry(user_id.server_name())
|
|
.or_insert_with(Vec::new)
|
|
.push((user_id, device_ids));
|
|
continue;
|
|
}
|
|
|
|
if device_ids.is_empty() {
|
|
let mut container = BTreeMap::new();
|
|
for device_id in services().users.all_device_ids(user_id) {
|
|
let device_id = device_id?;
|
|
if let Some(mut keys) = services().users.get_device_keys(user_id, &device_id)? {
|
|
let metadata = services()
|
|
.users
|
|
.get_device_metadata(user_id, &device_id)?
|
|
.ok_or_else(|| {
|
|
Error::bad_database("all_device_keys contained nonexistent device.")
|
|
})?;
|
|
|
|
add_unsigned_device_display_name(&mut keys, metadata)
|
|
.map_err(|_| Error::bad_database("invalid device keys in database"))?;
|
|
container.insert(device_id, keys);
|
|
}
|
|
}
|
|
device_keys.insert(user_id.to_owned(), container);
|
|
} else {
|
|
for device_id in device_ids {
|
|
let mut container = BTreeMap::new();
|
|
if let Some(mut keys) = services().users.get_device_keys(user_id, device_id)? {
|
|
let metadata = services()
|
|
.users
|
|
.get_device_metadata(user_id, device_id)?
|
|
.ok_or(Error::BadRequest(
|
|
ErrorKind::InvalidParam,
|
|
"Tried to get keys for nonexistent device.",
|
|
))?;
|
|
|
|
add_unsigned_device_display_name(&mut keys, metadata)
|
|
.map_err(|_| Error::bad_database("invalid device keys in database"))?;
|
|
container.insert(device_id.to_owned(), keys);
|
|
}
|
|
device_keys.insert(user_id.to_owned(), container);
|
|
}
|
|
}
|
|
|
|
if let Some(master_key) = services()
|
|
.users
|
|
.get_master_key(user_id, &allowed_signatures)?
|
|
{
|
|
master_keys.insert(user_id.to_owned(), master_key);
|
|
}
|
|
if let Some(self_signing_key) = services()
|
|
.users
|
|
.get_self_signing_key(user_id, &allowed_signatures)?
|
|
{
|
|
self_signing_keys.insert(user_id.to_owned(), self_signing_key);
|
|
}
|
|
if Some(user_id) == sender_user {
|
|
if let Some(user_signing_key) = services().users.get_user_signing_key(user_id)? {
|
|
user_signing_keys.insert(user_id.to_owned(), user_signing_key);
|
|
}
|
|
}
|
|
}
|
|
|
|
let mut failures = BTreeMap::new();
|
|
|
|
let mut futures: FuturesUnordered<_> = get_over_federation
|
|
.into_iter()
|
|
.map(|(server, vec)| async move {
|
|
let mut device_keys_input_fed = BTreeMap::new();
|
|
for (user_id, keys) in vec {
|
|
device_keys_input_fed.insert(user_id.to_owned(), keys.clone());
|
|
}
|
|
(
|
|
server,
|
|
services()
|
|
.sending
|
|
.send_federation_request(
|
|
server,
|
|
federation::keys::get_keys::v1::Request {
|
|
device_keys: device_keys_input_fed,
|
|
},
|
|
)
|
|
.await,
|
|
)
|
|
})
|
|
.collect();
|
|
|
|
while let Some((server, response)) = futures.next().await {
|
|
match response {
|
|
Ok(response) => {
|
|
master_keys.extend(response.master_keys);
|
|
self_signing_keys.extend(response.self_signing_keys);
|
|
device_keys.extend(response.device_keys);
|
|
}
|
|
Err(_e) => {
|
|
failures.insert(server.to_string(), json!({}));
|
|
}
|
|
}
|
|
}
|
|
|
|
Ok(get_keys::v3::Response {
|
|
master_keys,
|
|
self_signing_keys,
|
|
user_signing_keys,
|
|
device_keys,
|
|
failures,
|
|
})
|
|
}
|
|
|
|
fn add_unsigned_device_display_name(
|
|
keys: &mut Raw<ruma::encryption::DeviceKeys>,
|
|
metadata: ruma::api::client::device::Device,
|
|
) -> serde_json::Result<()> {
|
|
if let Some(display_name) = metadata.display_name {
|
|
let mut object = keys.deserialize_as::<serde_json::Map<String, serde_json::Value>>()?;
|
|
|
|
let unsigned = object.entry("unsigned").or_insert_with(|| json!({}));
|
|
if let serde_json::Value::Object(unsigned_object) = unsigned {
|
|
unsigned_object.insert("device_display_name".to_owned(), display_name.into());
|
|
}
|
|
|
|
*keys = Raw::from_json(serde_json::value::to_raw_value(&object)?);
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
pub(crate) async fn claim_keys_helper(
|
|
one_time_keys_input: &BTreeMap<OwnedUserId, BTreeMap<OwnedDeviceId, DeviceKeyAlgorithm>>,
|
|
) -> Result<claim_keys::v3::Response> {
|
|
let mut one_time_keys = BTreeMap::new();
|
|
|
|
let mut get_over_federation = BTreeMap::new();
|
|
|
|
for (user_id, map) in one_time_keys_input {
|
|
if user_id.server_name() != services().globals.server_name() {
|
|
get_over_federation
|
|
.entry(user_id.server_name())
|
|
.or_insert_with(Vec::new)
|
|
.push((user_id, map));
|
|
}
|
|
|
|
let mut container = BTreeMap::new();
|
|
for (device_id, key_algorithm) in map {
|
|
if let Some(one_time_keys) =
|
|
services()
|
|
.users
|
|
.take_one_time_key(user_id, device_id, key_algorithm)?
|
|
{
|
|
let mut c = BTreeMap::new();
|
|
c.insert(one_time_keys.0, one_time_keys.1);
|
|
container.insert(device_id.clone(), c);
|
|
}
|
|
}
|
|
one_time_keys.insert(user_id.clone(), container);
|
|
}
|
|
|
|
let mut failures = BTreeMap::new();
|
|
|
|
for (server, vec) in get_over_federation {
|
|
let mut one_time_keys_input_fed = BTreeMap::new();
|
|
for (user_id, keys) in vec {
|
|
one_time_keys_input_fed.insert(user_id.clone(), keys.clone());
|
|
}
|
|
// Ignore failures
|
|
if let Ok(keys) = services()
|
|
.sending
|
|
.send_federation_request(
|
|
server,
|
|
federation::keys::claim_keys::v1::Request {
|
|
one_time_keys: one_time_keys_input_fed,
|
|
},
|
|
)
|
|
.await
|
|
{
|
|
one_time_keys.extend(keys.one_time_keys);
|
|
} else {
|
|
failures.insert(server.to_string(), json!({}));
|
|
}
|
|
}
|
|
|
|
Ok(claim_keys::v3::Response {
|
|
failures,
|
|
one_time_keys,
|
|
})
|
|
}
|