conduit/src/client_server/membership.rs

960 lines
31 KiB
Rust

use crate::{
client_server,
database::DatabaseGuard,
pdu::{PduBuilder, PduEvent},
server_server, utils, ConduitResult, Database, Error, Result, Ruma,
};
use log::{debug, error, warn};
use member::{MemberEventContent, MembershipState};
use rocket::futures;
use ruma::{
api::{
client::{
error::ErrorKind,
r0::membership::{
ban_user, forget_room, get_member_events, invite_user, join_room_by_id,
join_room_by_id_or_alias, joined_members, joined_rooms, kick_user, leave_room,
unban_user, IncomingThirdPartySigned,
},
},
federation::{self, membership::create_invite},
},
events::{
pdu::Pdu,
room::{create::CreateEventContent, member},
EventType,
},
serde::{to_canonical_value, CanonicalJsonObject, CanonicalJsonValue, Raw},
state_res::{self, RoomVersion},
uint, EventId, RoomId, RoomVersionId, ServerName, UserId,
};
use std::{
collections::{btree_map::Entry, BTreeMap, HashSet},
convert::{TryFrom, TryInto},
sync::{Arc, RwLock},
time::{Duration, Instant},
};
#[cfg(feature = "conduit_bin")]
use rocket::{get, post};
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/join", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn join_room_by_id_route(
db: DatabaseGuard,
body: Ruma<join_room_by_id::Request<'_>>,
) -> ConduitResult<join_room_by_id::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
let mut servers = db
.rooms
.invite_state(&sender_user, &body.room_id)?
.unwrap_or_default()
.iter()
.filter_map(|event| {
serde_json::from_str::<serde_json::Value>(&event.json().to_string()).ok()
})
.filter_map(|event| event.get("sender").cloned())
.filter_map(|sender| sender.as_str().map(|s| s.to_owned()))
.filter_map(|sender| UserId::try_from(sender).ok())
.map(|user| user.server_name().to_owned())
.collect::<HashSet<_>>();
servers.insert(body.room_id.server_name().to_owned());
let ret = join_room_by_id_helper(
&db,
body.sender_user.as_ref(),
&body.room_id,
&servers,
body.third_party_signed.as_ref(),
)
.await;
db.flush().await?;
ret
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/join/<_>", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn join_room_by_id_or_alias_route(
db: DatabaseGuard,
body: Ruma<join_room_by_id_or_alias::Request<'_>>,
) -> ConduitResult<join_room_by_id_or_alias::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
let (servers, room_id) = match RoomId::try_from(body.room_id_or_alias.clone()) {
Ok(room_id) => {
let mut servers = db
.rooms
.invite_state(&sender_user, &room_id)?
.unwrap_or_default()
.iter()
.filter_map(|event| {
serde_json::from_str::<serde_json::Value>(&event.json().to_string()).ok()
})
.filter_map(|event| event.get("sender").cloned())
.filter_map(|sender| sender.as_str().map(|s| s.to_owned()))
.filter_map(|sender| UserId::try_from(sender).ok())
.map(|user| user.server_name().to_owned())
.collect::<HashSet<_>>();
servers.insert(room_id.server_name().to_owned());
(servers, room_id)
}
Err(room_alias) => {
let response = client_server::get_alias_helper(&db, &room_alias).await?;
(response.0.servers.into_iter().collect(), response.0.room_id)
}
};
let join_room_response = join_room_by_id_helper(
&db,
body.sender_user.as_ref(),
&room_id,
&servers,
body.third_party_signed.as_ref(),
)
.await?;
db.flush().await?;
Ok(join_room_by_id_or_alias::Response {
room_id: join_room_response.0.room_id,
}
.into())
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/leave", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn leave_room_route(
db: DatabaseGuard,
body: Ruma<leave_room::Request<'_>>,
) -> ConduitResult<leave_room::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
db.rooms.leave_room(sender_user, &body.room_id, &db).await?;
db.flush().await?;
Ok(leave_room::Response::new().into())
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/invite", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn invite_user_route(
db: DatabaseGuard,
body: Ruma<invite_user::Request<'_>>,
) -> ConduitResult<invite_user::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
if let invite_user::IncomingInvitationRecipient::UserId { user_id } = &body.recipient {
invite_helper(sender_user, user_id, &body.room_id, &db, false).await?;
db.flush().await?;
Ok(invite_user::Response.into())
} else {
Err(Error::BadRequest(ErrorKind::NotFound, "User not found."))
}
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/kick", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn kick_user_route(
db: DatabaseGuard,
body: Ruma<kick_user::Request<'_>>,
) -> ConduitResult<kick_user::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
let mut event = serde_json::from_value::<Raw<ruma::events::room::member::MemberEventContent>>(
db.rooms
.room_state_get(
&body.room_id,
&EventType::RoomMember,
&body.user_id.to_string(),
)?
.ok_or(Error::BadRequest(
ErrorKind::BadState,
"Cannot kick member that's not in the room.",
))?
.content
.clone(),
)
.expect("Raw::from_value always works")
.deserialize()
.map_err(|_| Error::bad_database("Invalid member event in database."))?;
event.membership = ruma::events::room::member::MembershipState::Leave;
// TODO: reason
db.rooms.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
content: serde_json::to_value(event).expect("event is valid, we just created it"),
unsigned: None,
state_key: Some(body.user_id.to_string()),
redacts: None,
},
&sender_user,
&body.room_id,
&db,
)?;
db.flush().await?;
Ok(kick_user::Response::new().into())
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/ban", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn ban_user_route(
db: DatabaseGuard,
body: Ruma<ban_user::Request<'_>>,
) -> ConduitResult<ban_user::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
// TODO: reason
let event = db
.rooms
.room_state_get(
&body.room_id,
&EventType::RoomMember,
&body.user_id.to_string(),
)?
.map_or(
Ok::<_, Error>(member::MemberEventContent {
membership: member::MembershipState::Ban,
displayname: db.users.displayname(&body.user_id)?,
avatar_url: db.users.avatar_url(&body.user_id)?,
is_direct: None,
third_party_invite: None,
}),
|event| {
let mut event = serde_json::from_value::<Raw<member::MemberEventContent>>(
event.content.clone(),
)
.expect("Raw::from_value always works")
.deserialize()
.map_err(|_| Error::bad_database("Invalid member event in database."))?;
event.membership = ruma::events::room::member::MembershipState::Ban;
Ok(event)
},
)?;
db.rooms.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
content: serde_json::to_value(event).expect("event is valid, we just created it"),
unsigned: None,
state_key: Some(body.user_id.to_string()),
redacts: None,
},
&sender_user,
&body.room_id,
&db,
)?;
db.flush().await?;
Ok(ban_user::Response::new().into())
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/unban", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn unban_user_route(
db: DatabaseGuard,
body: Ruma<unban_user::Request<'_>>,
) -> ConduitResult<unban_user::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
let mut event = serde_json::from_value::<Raw<ruma::events::room::member::MemberEventContent>>(
db.rooms
.room_state_get(
&body.room_id,
&EventType::RoomMember,
&body.user_id.to_string(),
)?
.ok_or(Error::BadRequest(
ErrorKind::BadState,
"Cannot unban a user who is not banned.",
))?
.content
.clone(),
)
.expect("from_value::<Raw<..>> can never fail")
.deserialize()
.map_err(|_| Error::bad_database("Invalid member event in database."))?;
event.membership = ruma::events::room::member::MembershipState::Leave;
db.rooms.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
content: serde_json::to_value(event).expect("event is valid, we just created it"),
unsigned: None,
state_key: Some(body.user_id.to_string()),
redacts: None,
},
&sender_user,
&body.room_id,
&db,
)?;
db.flush().await?;
Ok(unban_user::Response::new().into())
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/forget", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn forget_room_route(
db: DatabaseGuard,
body: Ruma<forget_room::Request<'_>>,
) -> ConduitResult<forget_room::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
db.rooms.forget(&body.room_id, &sender_user)?;
db.flush().await?;
Ok(forget_room::Response::new().into())
}
#[cfg_attr(
feature = "conduit_bin",
get("/_matrix/client/r0/joined_rooms", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn joined_rooms_route(
db: DatabaseGuard,
body: Ruma<joined_rooms::Request>,
) -> ConduitResult<joined_rooms::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
Ok(joined_rooms::Response {
joined_rooms: db
.rooms
.rooms_joined(&sender_user)
.filter_map(|r| r.ok())
.collect(),
}
.into())
}
#[cfg_attr(
feature = "conduit_bin",
get("/_matrix/client/r0/rooms/<_>/members", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn get_member_events_route(
db: DatabaseGuard,
body: Ruma<get_member_events::Request<'_>>,
) -> ConduitResult<get_member_events::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
if !db.rooms.is_joined(sender_user, &body.room_id)? {
return Err(Error::BadRequest(
ErrorKind::Forbidden,
"You don't have permission to view this room.",
));
}
Ok(get_member_events::Response {
chunk: db
.rooms
.room_state_full(&body.room_id)?
.iter()
.filter(|(key, _)| key.0 == EventType::RoomMember)
.map(|(_, pdu)| pdu.to_member_event())
.collect(),
}
.into())
}
#[cfg_attr(
feature = "conduit_bin",
get("/_matrix/client/r0/rooms/<_>/joined_members", data = "<body>")
)]
#[tracing::instrument(skip(db, body))]
pub async fn joined_members_route(
db: DatabaseGuard,
body: Ruma<joined_members::Request<'_>>,
) -> ConduitResult<joined_members::Response> {
let sender_user = body.sender_user.as_ref().expect("user is authenticated");
if !db
.rooms
.is_joined(&sender_user, &body.room_id)
.unwrap_or(false)
{
return Err(Error::BadRequest(
ErrorKind::Forbidden,
"You aren't a member of the room.",
));
}
let mut joined = BTreeMap::new();
for user_id in db.rooms.room_members(&body.room_id).filter_map(|r| r.ok()) {
let display_name = db.users.displayname(&user_id)?;
let avatar_url = db.users.avatar_url(&user_id)?;
joined.insert(
user_id,
joined_members::RoomMember {
display_name,
avatar_url,
},
);
}
Ok(joined_members::Response { joined }.into())
}
#[tracing::instrument(skip(db))]
async fn join_room_by_id_helper(
db: &Database,
sender_user: Option<&UserId>,
room_id: &RoomId,
servers: &HashSet<Box<ServerName>>,
_third_party_signed: Option<&IncomingThirdPartySigned>,
) -> ConduitResult<join_room_by_id::Response> {
let sender_user = sender_user.expect("user is authenticated");
// Ask a remote server if we don't have this room
if !db.rooms.exists(&room_id)? && room_id.server_name() != db.globals.server_name() {
let mut make_join_response_and_server = Err(Error::BadServerResponse(
"No server available to assist in joining.",
));
for remote_server in servers {
let make_join_response = db
.sending
.send_federation_request(
&db.globals,
remote_server,
federation::membership::create_join_event_template::v1::Request {
room_id,
user_id: sender_user,
ver: &[RoomVersionId::Version6],
},
)
.await;
make_join_response_and_server = make_join_response.map(|r| (r, remote_server));
if make_join_response_and_server.is_ok() {
break;
}
}
let (make_join_response, remote_server) = make_join_response_and_server?;
let room_version = match make_join_response.room_version {
Some(room_version) if room_version == RoomVersionId::Version6 => room_version,
_ => return Err(Error::BadServerResponse("Room version is not supported")),
};
let mut join_event_stub =
serde_json::from_str::<CanonicalJsonObject>(make_join_response.event.json().get())
.map_err(|_| {
Error::BadServerResponse("Invalid make_join event json received from server.")
})?;
// TODO: Is origin needed?
join_event_stub.insert(
"origin".to_owned(),
CanonicalJsonValue::String(db.globals.server_name().as_str().to_owned()),
);
join_event_stub.insert(
"origin_server_ts".to_owned(),
CanonicalJsonValue::Integer(
utils::millis_since_unix_epoch()
.try_into()
.expect("Timestamp is valid js_int value"),
),
);
join_event_stub.insert(
"content".to_owned(),
to_canonical_value(member::MemberEventContent {
membership: member::MembershipState::Join,
displayname: db.users.displayname(&sender_user)?,
avatar_url: db.users.avatar_url(&sender_user)?,
is_direct: None,
third_party_invite: None,
})
.expect("event is valid, we just created it"),
);
// We don't leave the event id in the pdu because that's only allowed in v1 or v2 rooms
join_event_stub.remove("event_id");
// In order to create a compatible ref hash (EventID) the `hashes` field needs to be present
ruma::signatures::hash_and_sign_event(
db.globals.server_name().as_str(),
db.globals.keypair(),
&mut join_event_stub,
&room_version,
)
.expect("event is valid, we just created it");
// Generate event id
let event_id = EventId::try_from(&*format!(
"${}",
ruma::signatures::reference_hash(&join_event_stub, &room_version)
.expect("ruma can calculate reference hashes")
))
.expect("ruma's reference hashes are valid event ids");
// Add event_id back
join_event_stub.insert(
"event_id".to_owned(),
CanonicalJsonValue::String(event_id.as_str().to_owned()),
);
// It has enough fields to be called a proper event now
let join_event = join_event_stub;
let send_join_response = db
.sending
.send_federation_request(
&db.globals,
remote_server,
federation::membership::create_join_event::v2::Request {
room_id,
event_id: &event_id,
pdu: PduEvent::convert_to_outgoing_federation_event(join_event.clone()),
},
)
.await?;
let pdu = PduEvent::from_id_val(&event_id, join_event.clone())
.map_err(|_| Error::BadServerResponse("Invalid join event PDU."))?;
let mut state = BTreeMap::new();
let pub_key_map = RwLock::new(BTreeMap::new());
for result in futures::future::join_all(
send_join_response
.room_state
.state
.iter()
.map(|pdu| validate_and_add_event_id(pdu, &room_version, &pub_key_map, &db)),
)
.await
{
let (event_id, value) = match result {
Ok(t) => t,
Err(_) => continue,
};
let pdu = PduEvent::from_id_val(&event_id, value.clone()).map_err(|e| {
warn!("{:?}: {}", value, e);
Error::BadServerResponse("Invalid PDU in send_join response.")
})?;
db.rooms.add_pdu_outlier(&event_id, &value)?;
if let Some(state_key) = &pdu.state_key {
state.insert((pdu.kind.clone(), state_key.clone()), pdu.event_id.clone());
}
}
state.insert(
(
pdu.kind.clone(),
pdu.state_key.clone().expect("join event has state key"),
),
pdu.event_id.clone(),
);
if state.get(&(EventType::RoomCreate, "".to_owned())).is_none() {
return Err(Error::BadServerResponse("State contained no create event."));
}
db.rooms.force_state(room_id, state, &db)?;
for result in futures::future::join_all(
send_join_response
.room_state
.auth_chain
.iter()
.map(|pdu| validate_and_add_event_id(pdu, &room_version, &pub_key_map, &db)),
)
.await
{
let (event_id, value) = match result {
Ok(t) => t,
Err(_) => continue,
};
db.rooms.add_pdu_outlier(&event_id, &value)?;
}
// We append to state before appending the pdu, so we don't have a moment in time with the
// pdu without it's state. This is okay because append_pdu can't fail.
let statehashid = db.rooms.append_to_state(&pdu, &db.globals)?;
let count = db.globals.next_count()?;
let mut pdu_id = room_id.as_bytes().to_vec();
pdu_id.push(0xff);
pdu_id.extend_from_slice(&count.to_be_bytes());
db.rooms.append_pdu(
&pdu,
utils::to_canonical_object(&pdu).expect("Pdu is valid canonical object"),
count,
&pdu_id,
&[pdu.event_id.clone()],
db,
)?;
// We set the room state after inserting the pdu, so that we never have a moment in time
// where events in the current room state do not exist
db.rooms.set_room_state(&room_id, statehashid)?;
} else {
let event = member::MemberEventContent {
membership: member::MembershipState::Join,
displayname: db.users.displayname(&sender_user)?,
avatar_url: db.users.avatar_url(&sender_user)?,
is_direct: None,
third_party_invite: None,
};
db.rooms.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
content: serde_json::to_value(event).expect("event is valid, we just created it"),
unsigned: None,
state_key: Some(sender_user.to_string()),
redacts: None,
},
&sender_user,
&room_id,
&db,
)?;
}
db.flush().await?;
Ok(join_room_by_id::Response::new(room_id.clone()).into())
}
async fn validate_and_add_event_id(
pdu: &Raw<Pdu>,
room_version: &RoomVersionId,
pub_key_map: &RwLock<BTreeMap<String, BTreeMap<String, String>>>,
db: &Database,
) -> Result<(EventId, CanonicalJsonObject)> {
let mut value = serde_json::from_str::<CanonicalJsonObject>(pdu.json().get()).map_err(|e| {
error!("Invalid PDU in server response: {:?}: {:?}", pdu, e);
Error::BadServerResponse("Invalid PDU in server response")
})?;
let event_id = EventId::try_from(&*format!(
"${}",
ruma::signatures::reference_hash(&value, &room_version)
.expect("ruma can calculate reference hashes")
))
.expect("ruma's reference hashes are valid event ids");
let back_off = |id| match db.globals.bad_event_ratelimiter.write().unwrap().entry(id) {
Entry::Vacant(e) => {
e.insert((Instant::now(), 1));
}
Entry::Occupied(mut e) => *e.get_mut() = (Instant::now(), e.get().1 + 1),
};
if let Some((time, tries)) = db
.globals
.bad_event_ratelimiter
.read()
.unwrap()
.get(&event_id)
{
// Exponential backoff
let mut min_elapsed_duration = Duration::from_secs(30) * (*tries) * (*tries);
if min_elapsed_duration > Duration::from_secs(60 * 60 * 24) {
min_elapsed_duration = Duration::from_secs(60 * 60 * 24);
}
if time.elapsed() < min_elapsed_duration {
debug!("Backing off from {}", event_id);
return Err(Error::BadServerResponse("bad event, still backing off"));
}
}
server_server::fetch_required_signing_keys(&value, pub_key_map, db).await?;
if let Err(e) = ruma::signatures::verify_event(
&*pub_key_map
.read()
.map_err(|_| Error::bad_database("RwLock is poisoned."))?,
&value,
room_version,
) {
warn!("Event {} failed verification {:?} {}", event_id, pdu, e);
back_off(event_id);
return Err(Error::BadServerResponse("Event failed verification."));
}
value.insert(
"event_id".to_owned(),
CanonicalJsonValue::String(event_id.as_str().to_owned()),
);
Ok((event_id, value))
}
pub async fn invite_helper(
sender_user: &UserId,
user_id: &UserId,
room_id: &RoomId,
db: &Database,
is_direct: bool,
) -> Result<()> {
if user_id.server_name() != db.globals.server_name() {
let prev_events = db
.rooms
.get_pdu_leaves(room_id)?
.into_iter()
.take(20)
.collect::<Vec<_>>();
let create_event = db
.rooms
.room_state_get(room_id, &EventType::RoomCreate, "")?;
let create_event_content = create_event
.as_ref()
.map(|create_event| {
serde_json::from_value::<Raw<CreateEventContent>>(create_event.content.clone())
.expect("Raw::from_value always works.")
.deserialize()
.map_err(|_| Error::bad_database("Invalid PowerLevels event in db."))
})
.transpose()?;
let create_prev_event = if prev_events.len() == 1
&& Some(&prev_events[0]) == create_event.as_ref().map(|c| &c.event_id)
{
create_event
} else {
None
};
// If there was no create event yet, assume we are creating a version 6 room right now
let room_version_id = create_event_content
.map_or(RoomVersionId::Version6, |create_event| {
create_event.room_version
});
let room_version = RoomVersion::new(&room_version_id).expect("room version is supported");
let content = serde_json::to_value(MemberEventContent {
avatar_url: None,
displayname: None,
is_direct: Some(is_direct),
membership: MembershipState::Invite,
third_party_invite: None,
})
.expect("member event is valid value");
let state_key = user_id.to_string();
let kind = EventType::RoomMember;
let auth_events =
db.rooms
.get_auth_events(room_id, &kind, &sender_user, Some(&state_key), &content)?;
// Our depth is the maximum depth of prev_events + 1
let depth = prev_events
.iter()
.filter_map(|event_id| Some(db.rooms.get_pdu(event_id).ok()??.depth))
.max()
.unwrap_or_else(|| uint!(0))
+ uint!(1);
let mut unsigned = BTreeMap::new();
if let Some(prev_pdu) = db.rooms.room_state_get(room_id, &kind, &state_key)? {
unsigned.insert("prev_content".to_owned(), prev_pdu.content.clone());
unsigned.insert(
"prev_sender".to_owned(),
serde_json::to_value(&prev_pdu.sender).expect("UserId::to_value always works"),
);
}
let pdu = PduEvent {
event_id: ruma::event_id!("$thiswillbefilledinlater"),
room_id: room_id.clone(),
sender: sender_user.clone(),
origin_server_ts: utils::millis_since_unix_epoch()
.try_into()
.expect("time is valid"),
kind,
content,
state_key: Some(state_key),
prev_events,
depth,
auth_events: auth_events
.iter()
.map(|(_, pdu)| pdu.event_id.clone())
.collect(),
redacts: None,
unsigned,
hashes: ruma::events::pdu::EventHash {
sha256: "aaa".to_owned(),
},
signatures: BTreeMap::new(),
};
let auth_check = state_res::auth_check(
&room_version,
&Arc::new(pdu.clone()),
create_prev_event,
&auth_events,
None, // TODO: third_party_invite
)
.map_err(|e| {
error!("{:?}", e);
Error::bad_database("Auth check failed.")
})?;
if !auth_check {
return Err(Error::BadRequest(
ErrorKind::Forbidden,
"Event is not authorized.",
));
}
// Hash and sign
let mut pdu_json =
utils::to_canonical_object(&pdu).expect("event is valid, we just created it");
pdu_json.remove("event_id");
// Add origin because synapse likes that (and it's required in the spec)
pdu_json.insert(
"origin".to_owned(),
to_canonical_value(db.globals.server_name())
.expect("server name is a valid CanonicalJsonValue"),
);
ruma::signatures::hash_and_sign_event(
db.globals.server_name().as_str(),
db.globals.keypair(),
&mut pdu_json,
&room_version_id,
)
.expect("event is valid, we just created it");
let invite_room_state = db.rooms.calculate_invite_state(&pdu)?;
let response = db
.sending
.send_federation_request(
&db.globals,
user_id.server_name(),
create_invite::v2::Request {
room_id: room_id.clone(),
event_id: ruma::event_id!("$receivingservershouldsetthis"),
room_version: RoomVersionId::Version6,
event: PduEvent::convert_to_outgoing_federation_event(pdu_json),
invite_room_state,
},
)
.await?;
let pub_key_map = RwLock::new(BTreeMap::new());
// We do not add the event_id field to the pdu here because of signature and hashes checks
let (event_id, value) = match crate::pdu::gen_event_id_canonical_json(&response.event) {
Ok(t) => t,
Err(_) => {
// Event could not be converted to canonical json
return Err(Error::BadRequest(
ErrorKind::InvalidParam,
"Could not convert event to canonical json.",
));
}
};
let origin = serde_json::from_value::<Box<ServerName>>(
serde_json::to_value(value.get("origin").ok_or(Error::BadRequest(
ErrorKind::InvalidParam,
"Event needs an origin field.",
))?)
.expect("CanonicalJson is valid json value"),
)
.map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "Origin field is invalid."))?;
let pdu_id =
server_server::handle_incoming_pdu(&origin, &event_id, value, true, &db, &pub_key_map)
.await
.map_err(|_| {
Error::BadRequest(
ErrorKind::InvalidParam,
"Error while handling incoming PDU.",
)
})?
.ok_or(Error::BadRequest(
ErrorKind::InvalidParam,
"Could not accept incoming PDU as timeline event.",
))?;
for server in db
.rooms
.room_servers(room_id)
.filter_map(|r| r.ok())
.filter(|server| &**server != db.globals.server_name())
{
db.sending.send_pdu(&server, &pdu_id)?;
}
return Ok(());
}
db.rooms.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
content: serde_json::to_value(member::MemberEventContent {
membership: member::MembershipState::Invite,
displayname: db.users.displayname(&user_id)?,
avatar_url: db.users.avatar_url(&user_id)?,
is_direct: Some(is_direct),
third_party_invite: None,
})
.expect("event is valid, we just created it"),
unsigned: None,
state_key: Some(user_id.to_string()),
redacts: None,
},
&sender_user,
room_id,
&db,
)?;
Ok(())
}