conduit/src/server_server.rs

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use crate::{client_server, ConduitResult, Database, Error, PduEvent, Result, Ruma};
use http::header::{HeaderValue, AUTHORIZATION, HOST};
use log::warn;
use rocket::{get, post, put, response::content::Json, State};
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use ruma::{
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api::federation::directory::get_public_rooms_filtered,
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api::{
federation::{
directory::get_public_rooms,
discovery::{
get_server_keys, get_server_version::v1 as get_server_version, ServerKey, VerifyKey,
},
transactions::send_transaction_message,
},
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OutgoingRequest,
},
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directory::{IncomingFilter, IncomingRoomNetwork},
EventId, ServerName,
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};
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use std::{
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collections::BTreeMap,
convert::TryFrom,
fmt::Debug,
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time::{Duration, SystemTime},
};
use trust_dns_resolver::AsyncResolver;
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pub async fn request_well_known(
globals: &crate::database::globals::Globals,
destination: &str,
) -> Option<String> {
let body: serde_json::Value = serde_json::from_str(
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&globals
.reqwest_client()
.get(&format!(
"https://{}/.well-known/matrix/server",
destination
))
.send()
.await
.ok()?
.text()
.await
.ok()?,
)
.ok()?;
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Some(body.get("m.server")?.as_str()?.to_owned())
}
pub async fn send_request<T: OutgoingRequest>(
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globals: &crate::database::globals::Globals,
destination: Box<ServerName>,
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request: T,
) -> Result<T::IncomingResponse>
where
T: Debug,
{
let resolver = AsyncResolver::tokio_from_system_conf()
.await
.map_err(|_| Error::BadConfig("Failed to set up trust dns resolver with system config."))?;
let mut host = None;
let actual_destination = "https://".to_owned()
+ &if let Some(mut delegated_hostname) =
request_well_known(globals, &destination.as_str()).await
{
if let Ok(Some(srv)) = resolver
.srv_lookup(format!("_matrix._tcp.{}", delegated_hostname))
.await
.map(|srv| srv.iter().next().map(|result| result.target().to_string()))
{
host = Some(delegated_hostname);
srv.trim_end_matches('.').to_owned()
} else {
if delegated_hostname.find(':').is_none() {
delegated_hostname += ":8448";
}
delegated_hostname
}
} else {
let mut destination = destination.as_str().to_owned();
if destination.find(':').is_none() {
destination += ":8448";
}
destination
};
let mut http_request = request
.try_into_http_request(&actual_destination, Some(""))
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.map_err(|e| {
warn!("{}: {}", actual_destination, e);
Error::BadServerResponse("Invalid destination")
})?;
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let mut request_map = serde_json::Map::new();
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if !http_request.body().is_empty() {
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request_map.insert(
"content".to_owned(),
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serde_json::from_slice(http_request.body())
.expect("body is valid json, we just created it"),
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);
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};
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request_map.insert("method".to_owned(), T::METADATA.method.to_string().into());
request_map.insert(
"uri".to_owned(),
http_request
.uri()
.path_and_query()
.expect("all requests have a path")
.to_string()
.into(),
);
request_map.insert("origin".to_owned(), globals.server_name().as_str().into());
request_map.insert("destination".to_owned(), destination.as_str().into());
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let mut request_json = request_map.into();
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ruma::signatures::sign_json(
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globals.server_name().as_str(),
globals.keypair(),
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&mut request_json,
)
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.expect("our request json is what ruma expects");
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let signatures = request_json["signatures"]
.as_object()
.unwrap()
.values()
.map(|v| {
v.as_object()
.unwrap()
.iter()
.map(|(k, v)| (k, v.as_str().unwrap()))
});
for signature_server in signatures {
for s in signature_server {
http_request.headers_mut().insert(
AUTHORIZATION,
HeaderValue::from_str(&format!(
"X-Matrix origin={},key=\"{}\",sig=\"{}\"",
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globals.server_name(),
s.0,
s.1
))
.unwrap(),
);
}
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}
if let Some(host) = host {
http_request
.headers_mut()
.insert(HOST, HeaderValue::from_str(&host).unwrap());
}
let mut reqwest_request = reqwest::Request::try_from(http_request)
.expect("all http requests are valid reqwest requests");
*reqwest_request.timeout_mut() = Some(Duration::from_secs(30));
let url = reqwest_request.url().clone();
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let reqwest_response = globals.reqwest_client().execute(reqwest_request).await;
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// Because reqwest::Response -> http::Response is complicated:
match reqwest_response {
Ok(mut reqwest_response) => {
let status = reqwest_response.status();
let mut http_response = http::Response::builder().status(status);
let headers = http_response.headers_mut().unwrap();
for (k, v) in reqwest_response.headers_mut().drain() {
if let Some(key) = k {
headers.insert(key, v);
}
}
let body = reqwest_response
.bytes()
.await
.unwrap()
.into_iter()
.collect();
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let response = T::IncomingResponse::try_from(
http_response
.body(body)
.expect("reqwest body is valid http body"),
);
response.map_err(|e| {
warn!(
"Server returned bad response {} ({}): {:?}",
destination, url, e
);
Error::BadServerResponse("Server returned bad response.")
})
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}
Err(e) => Err(e.into()),
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}
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}
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#[cfg_attr(feature = "conduit_bin", get("/_matrix/federation/v1/version"))]
pub fn get_server_version() -> ConduitResult<get_server_version::Response> {
Ok(get_server_version::Response {
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server: Some(get_server_version::Server {
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name: Some("Conduit".to_owned()),
version: Some(env!("CARGO_PKG_VERSION").to_owned()),
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}),
}
.into())
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}
#[cfg_attr(feature = "conduit_bin", get("/_matrix/key/v2/server"))]
pub fn get_server_keys(db: State<'_, Database>) -> Json<String> {
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let mut verify_keys = BTreeMap::new();
verify_keys.insert(
format!("ed25519:{}", db.globals.keypair().version()),
VerifyKey {
key: base64::encode_config(db.globals.keypair().public_key(), base64::STANDARD_NO_PAD),
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},
);
let mut response = serde_json::from_slice(
http::Response::try_from(get_server_keys::v2::Response {
server_key: ServerKey {
server_name: db.globals.server_name().to_owned(),
verify_keys,
old_verify_keys: BTreeMap::new(),
signatures: BTreeMap::new(),
valid_until_ts: SystemTime::now() + Duration::from_secs(60 * 2),
},
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})
.unwrap()
.body(),
)
.unwrap();
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ruma::signatures::sign_json(
db.globals.server_name().as_str(),
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db.globals.keypair(),
&mut response,
)
.unwrap();
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Json(response.to_string())
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}
#[cfg_attr(feature = "conduit_bin", get("/_matrix/key/v2/server/<_>"))]
pub fn get_server_keys_deprecated(db: State<'_, Database>) -> Json<String> {
get_server_keys(db)
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}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/federation/v1/publicRooms", data = "<body>")
)]
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pub async fn get_public_rooms_filtered_route(
db: State<'_, Database>,
body: Ruma<get_public_rooms_filtered::v1::Request<'_>>,
) -> ConduitResult<get_public_rooms_filtered::v1::Response> {
let response = client_server::get_public_rooms_filtered_helper(
&db,
None,
body.limit,
body.since.as_deref(),
&body.filter,
&body.room_network,
)
.await?
.0;
Ok(get_public_rooms_filtered::v1::Response {
chunk: response
.chunk
.into_iter()
.map(|c| {
// Convert ruma::api::federation::directory::get_public_rooms::v1::PublicRoomsChunk
// to ruma::api::client::r0::directory::PublicRoomsChunk
Ok::<_, Error>(
serde_json::from_str(
&serde_json::to_string(&c)
.expect("PublicRoomsChunk::to_string always works"),
)
.expect("federation and client-server PublicRoomsChunk are the same type"),
)
})
.filter_map(|r| r.ok())
.collect(),
prev_batch: response.prev_batch,
next_batch: response.next_batch,
total_room_count_estimate: response.total_room_count_estimate,
}
.into())
}
#[cfg_attr(
feature = "conduit_bin",
get("/_matrix/federation/v1/publicRooms", data = "<body>")
)]
pub async fn get_public_rooms_route(
db: State<'_, Database>,
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body: Ruma<get_public_rooms::v1::Request<'_>>,
) -> ConduitResult<get_public_rooms::v1::Response> {
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let response = client_server::get_public_rooms_filtered_helper(
&db,
None,
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body.limit,
body.since.as_deref(),
&IncomingFilter::default(),
&IncomingRoomNetwork::Matrix,
)
.await?
.0;
Ok(get_public_rooms::v1::Response {
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chunk: response
.chunk
.into_iter()
.map(|c| {
// Convert ruma::api::federation::directory::get_public_rooms::v1::PublicRoomsChunk
// to ruma::api::client::r0::directory::PublicRoomsChunk
Ok::<_, Error>(
serde_json::from_str(
&serde_json::to_string(&c)
.expect("PublicRoomsChunk::to_string always works"),
)
.expect("federation and client-server PublicRoomsChunk are the same type"),
)
})
.filter_map(|r| r.ok())
.collect(),
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prev_batch: response.prev_batch,
next_batch: response.next_batch,
total_room_count_estimate: response.total_room_count_estimate,
}
.into())
}
#[cfg_attr(
feature = "conduit_bin",
put("/_matrix/federation/v1/send/<_>", data = "<body>")
)]
pub fn send_transaction_message_route<'a>(
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db: State<'a, Database>,
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body: Ruma<send_transaction_message::v1::Request<'_>>,
) -> ConduitResult<send_transaction_message::v1::Response> {
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//dbg!(&*body);
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for pdu in &body.pdus {
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let mut value = serde_json::from_str(pdu.json().get())
.expect("converting raw jsons to values always works");
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let event_id = EventId::try_from(&*format!(
"${}",
ruma::signatures::reference_hash(&value).expect("ruma can calculate reference hashes")
))
.expect("ruma's reference hashes are valid event ids");
value
.as_object_mut()
.expect("ruma pdus are json objects")
.insert("event_id".to_owned(), event_id.to_string().into());
let pdu = serde_json::from_value::<PduEvent>(value.clone())
.expect("all ruma pdus are conduit pdus");
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if db.rooms.exists(&pdu.room_id)? {
let pdu_id = db
.rooms
.append_pdu(&pdu, &value, &db.globals, &db.account_data)?;
db.rooms.append_to_state(&pdu_id, &pdu)?;
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}
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}
Ok(send_transaction_message::v1::Response {
pdus: BTreeMap::new(),
}
.into())
}