State resolution outline for /send

This commit is contained in:
Devin Ragotzy 2020-12-22 12:45:35 -05:00 committed by Timo Kösters
parent c263e13000
commit 690c066064
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GPG key ID: 24DA7517711A2BA4
6 changed files with 384 additions and 141 deletions

152
Cargo.lock generated
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@ -215,21 +215,11 @@ dependencies = [
"trust-dns-resolver", "trust-dns-resolver",
] ]
[[package]]
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[[package]] [[package]]
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@ -631,9 +621,9 @@ checksum = "d7afe4a420e3fe79967a00898cc1f4db7c8a49a9333a29f8a4bd76a253d5cd04"
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@ -1129,18 +1119,18 @@ checksum = "77af24da69f9d9341038eba93a073b1fdaaa1b788221b00a69bce9e762cb32de"
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@ -1177,9 +1167,9 @@ dependencies = [
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@ -1343,9 +1333,9 @@ checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
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@ -1457,9 +1447,9 @@ dependencies = [
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@ -1486,7 +1476,6 @@ dependencies = [
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"winreg 0.7.0", "winreg 0.7.0",
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@ -1586,7 +1575,7 @@ dependencies = [
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dependencies = [ dependencies = [
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@ -1604,7 +1593,7 @@ dependencies = [
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@ -1619,7 +1608,7 @@ dependencies = [
[[package]] [[package]]
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dependencies = [ dependencies = [
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@ -1630,7 +1619,7 @@ dependencies = [
[[package]] [[package]]
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@ -1644,7 +1633,7 @@ dependencies = [
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@ -1663,7 +1652,7 @@ dependencies = [
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version = "1.0.54" version = "1.0.55"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9a2af957a63d6bd42255c359c93d9bfdb97076bd3b820897ce55ffbfbf107f44" checksum = "a571a711dddd09019ccc628e1b17fe87c59b09d513c06c026877aa708334f37a"
dependencies = [ dependencies = [
"proc-macro2", "proc-macro2",
"quote", "quote",
@ -2223,9 +2205,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
[[package]] [[package]]
name = "tokio" name = "tokio"
version = "0.2.23" version = "0.2.24"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a6d7ad61edd59bfcc7e80dababf0f4aed2e6d5e0ba1659356ae889752dfc12ff" checksum = "099837d3464c16a808060bb3f02263b412f6fafcb5d01c533d309985fbeebe48"
dependencies = [ dependencies = [
"bytes", "bytes",
"fnv", "fnv",
@ -2293,9 +2275,9 @@ dependencies = [
[[package]] [[package]]
name = "toml" name = "toml"
version = "0.5.7" version = "0.5.8"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "75cf45bb0bef80604d001caaec0d09da99611b3c0fd39d3080468875cdb65645" checksum = "a31142970826733df8241ef35dc040ef98c679ab14d7c3e54d827099b3acecaa"
dependencies = [ dependencies = [
"serde", "serde",
] ]
@ -2472,9 +2454,9 @@ dependencies = [
[[package]] [[package]]
name = "vcpkg" name = "vcpkg"
version = "0.2.10" version = "0.2.11"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6454029bf181f092ad1b853286f23e2c507d8e8194d01d92da4a55c274a5508c" checksum = "b00bca6106a5e23f3eee943593759b7fcddb00554332e856d990c893966879fb"
[[package]] [[package]]
name = "version_check" name = "version_check"
@ -2566,30 +2548,6 @@ version = "0.2.69"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7e7811dd7f9398f14cc76efd356f98f03aa30419dea46aa810d71e819fc97158" checksum = "7e7811dd7f9398f14cc76efd356f98f03aa30419dea46aa810d71e819fc97158"
[[package]]
name = "wasm-bindgen-test"
version = "0.3.19"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0355fa0c1f9b792a09b6dcb6a8be24d51e71e6d74972f9eb4a44c4c004d24a25"
dependencies = [
"console_error_panic_hook",
"js-sys",
"scoped-tls",
"wasm-bindgen",
"wasm-bindgen-futures",
"wasm-bindgen-test-macro",
]
[[package]]
name = "wasm-bindgen-test-macro"
version = "0.3.19"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "27e07b46b98024c2ba2f9e83a10c2ef0515f057f2da299c1762a2017de80438b"
dependencies = [
"proc-macro2",
"quote",
]
[[package]] [[package]]
name = "web-sys" name = "web-sys"
version = "0.3.46" version = "0.3.46"

View file

@ -18,14 +18,14 @@ rocket = { git = "https://github.com/SergioBenitez/Rocket.git", rev = "1f1f44f33
#rocket = { git = "https://github.com/timokoesters/Rocket.git", branch = "empty_parameters", default-features = false, features = ["tls"] } #rocket = { git = "https://github.com/timokoesters/Rocket.git", branch = "empty_parameters", default-features = false, features = ["tls"] }
# Used for matrix spec type definitions and helpers # Used for matrix spec type definitions and helpers
ruma = { git = "https://github.com/ruma/ruma", features = ["rand", "client-api", "federation-api", "unstable-pre-spec", "unstable-synapse-quirks", "unstable-exhaustive-types"], rev = "ee814aa84934530d76f5e4b275d739805b49bdef" } ruma = { git = "https://github.com/ruma/ruma", features = ["rand", "client-api", "federation-api", "unstable-pre-spec", "unstable-synapse-quirks", "unstable-exhaustive-types"], rev = "45d01011554f9d07739e9a5edf5498d8ac16f273" }
# ruma = { git = "https://github.com/DevinR528/ruma", features = ["rand", "client-api", "federation-api", "unstable-exhaustive-types", "unstable-pre-spec", "unstable-synapse-quirks"], branch = "unstable-join" } # ruma = { git = "https://github.com/DevinR528/ruma", features = ["rand", "client-api", "federation-api", "unstable-exhaustive-types", "unstable-pre-spec", "unstable-synapse-quirks"], branch = "verified-export" }
# ruma = { path = "../ruma/ruma", features = ["unstable-exhaustive-types", "rand", "client-api", "federation-api", "unstable-pre-spec", "unstable-synapse-quirks"] } # ruma = { path = "../ruma/ruma", features = ["unstable-exhaustive-types", "rand", "client-api", "federation-api", "unstable-pre-spec", "unstable-synapse-quirks"] }
# Used when doing state resolution # Used when doing state resolution
# state-res = { git = "https://github.com/timokoesters/state-res", branch = "timo-spec-comp", features = ["unstable-pre-spec"] } # state-res = { git = "https://github.com/timokoesters/state-res", branch = "timo-spec-comp", features = ["unstable-pre-spec"] }
state-res = { git = "https://github.com/ruma/state-res", branch = "timo-spec-comp", features = ["unstable-pre-spec", "gen-eventid"] } state-res = { git = "https://github.com/ruma/state-res", branch = "conflict", features = ["unstable-pre-spec", "gen-eventid"] }
#state-res = { path = "../state-res", features = ["unstable-pre-spec", "gen-eventid"] } # state-res = { path = "../../state-res", features = ["unstable-pre-spec", "gen-eventid"] }
# Used for long polling and federation sender, should be the same as rocket::tokio # Used for long polling and federation sender, should be the same as rocket::tokio
tokio = { version = "0.2.23" } tokio = { version = "0.2.23" }

View file

@ -178,6 +178,6 @@ async fn main() {
} }
#[catch(404)] #[catch(404)]
fn not_found_catcher(_req: &'_ Request<'_>) -> String { fn not_found_catcher(_: &Request<'_>) -> String {
"404 Not Found".to_owned() "404 Not Found".to_owned()
} }

View file

@ -17,7 +17,7 @@ use std::{
time::UNIX_EPOCH, time::UNIX_EPOCH,
}; };
#[derive(Deserialize, Serialize, Debug)] #[derive(Clone, Deserialize, Serialize, Debug)]
pub struct PduEvent { pub struct PduEvent {
pub event_id: EventId, pub event_id: EventId,
pub room_id: RoomId, pub room_id: RoomId,

View file

@ -1,6 +1,6 @@
use crate::Error; use crate::Error;
use ruma::{ use ruma::{
api::{AuthScheme, OutgoingRequest}, api::{AuthScheme, IncomingRequest, OutgoingRequest},
identifiers::{DeviceId, UserId}, identifiers::{DeviceId, UserId},
Outgoing, Outgoing,
}; };
@ -29,7 +29,7 @@ use {
/// This struct converts rocket requests into ruma structs by converting them into http requests /// This struct converts rocket requests into ruma structs by converting them into http requests
/// first. /// first.
pub struct Ruma<T: Outgoing> { pub struct Ruma<T: Outgoing + OutgoingRequest> {
pub body: T::Incoming, pub body: T::Incoming,
pub sender_user: Option<UserId>, pub sender_user: Option<UserId>,
pub sender_device: Option<Box<DeviceId>>, pub sender_device: Option<Box<DeviceId>>,
@ -40,10 +40,7 @@ pub struct Ruma<T: Outgoing> {
#[cfg(feature = "conduit_bin")] #[cfg(feature = "conduit_bin")]
impl<'a, T: Outgoing + OutgoingRequest> FromTransformedData<'a> for Ruma<T> impl<'a, T: Outgoing + OutgoingRequest> FromTransformedData<'a> for Ruma<T>
where where
<T as Outgoing>::Incoming: TryFrom<http::request::Request<std::vec::Vec<u8>>> + std::fmt::Debug, T::Incoming: IncomingRequest,
<<T as Outgoing>::Incoming as std::convert::TryFrom<
http::request::Request<std::vec::Vec<u8>>,
>>::Error: std::fmt::Debug,
{ {
type Error = (); // TODO: Better error handling type Error = (); // TODO: Better error handling
type Owned = Data; type Owned = Data;
@ -149,8 +146,7 @@ where
let http_request = http_request.body(body.clone()).unwrap(); let http_request = http_request.body(body.clone()).unwrap();
debug!("{:?}", http_request); debug!("{:?}", http_request);
match <T::Incoming as IncomingRequest>::try_from_http_request(http_request) {
match <T as Outgoing>::Incoming::try_from(http_request) {
Ok(t) => Success(Ruma { Ok(t) => Success(Ruma {
body: t, body: t,
sender_user, sender_user,
@ -170,7 +166,7 @@ where
} }
} }
impl<T: Outgoing> Deref for Ruma<T> { impl<T: Outgoing + OutgoingRequest> Deref for Ruma<T> {
type Target = T::Incoming; type Target = T::Incoming;
fn deref(&self) -> &Self::Target { fn deref(&self) -> &Self::Target {

View file

@ -1,7 +1,7 @@
use crate::{client_server, utils, ConduitResult, Database, Error, PduEvent, Result, Ruma}; use crate::{client_server, utils, ConduitResult, Database, Error, PduEvent, Result, Ruma};
use get_profile_information::v1::ProfileField; use get_profile_information::v1::ProfileField;
use http::header::{HeaderValue, AUTHORIZATION, HOST}; use http::header::{HeaderValue, AUTHORIZATION, HOST};
use log::{info, warn}; use log::{error, info, warn};
use rocket::{get, post, put, response::content::Json, State}; use rocket::{get, post, put, response::content::Json, State};
use ruma::{ use ruma::{
api::{ api::{
@ -11,17 +11,18 @@ use ruma::{
get_server_keys, get_server_version::v1 as get_server_version, ServerSigningKeys, get_server_keys, get_server_version::v1 as get_server_version, ServerSigningKeys,
VerifyKey, VerifyKey,
}, },
event::get_missing_events, event::{get_missing_events, get_room_state, get_room_state_ids},
query::get_profile_information, query::get_profile_information,
transactions::send_transaction_message, transactions::send_transaction_message,
}, },
OutgoingRequest, OutgoingRequest,
}, },
directory::{IncomingFilter, IncomingRoomNetwork}, directory::{IncomingFilter, IncomingRoomNetwork},
EventId, RoomId, ServerName, ServerSigningKeyId, UserId, EventId, RoomId, RoomVersionId, ServerName, ServerSigningKeyId, UserId,
}; };
use state_res::StateMap;
use std::{ use std::{
collections::BTreeMap, collections::{BTreeMap, BTreeSet},
convert::TryFrom, convert::TryFrom,
fmt::Debug, fmt::Debug,
net::{IpAddr, SocketAddr}, net::{IpAddr, SocketAddr},
@ -476,6 +477,34 @@ pub async fn get_public_rooms_route(
.into()) .into())
} }
#[derive(Clone, Debug, Ord, PartialOrd, Eq, PartialEq)]
pub enum PrevEvents<T> {
Sequential(T),
Fork(Vec<T>),
}
impl<T> IntoIterator for PrevEvents<T> {
type Item = T;
type IntoIter = std::vec::IntoIter<Self::Item>;
fn into_iter(self) -> Self::IntoIter {
match self {
Self::Sequential(item) => vec![item].into_iter(),
Self::Fork(list) => list.into_iter(),
}
}
}
impl<T: Clone> PrevEvents<T> {
pub fn new(id: &[T]) -> Self {
match id {
[] => panic!("All events must have previous event"),
[single_id] => Self::Sequential(single_id.clone()),
rest => Self::Fork(rest.to_vec()),
}
}
}
#[cfg_attr( #[cfg_attr(
feature = "conduit_bin", feature = "conduit_bin",
put("/_matrix/federation/v1/send/<_>", data = "<body>") put("/_matrix/federation/v1/send/<_>", data = "<body>")
@ -532,53 +561,313 @@ pub async fn send_transaction_message_route<'a>(
// would return a M_BAD_JSON error. // would return a M_BAD_JSON error.
let mut resolved_map = BTreeMap::new(); let mut resolved_map = BTreeMap::new();
for pdu in &body.pdus { for pdu in &body.pdus {
// Ruma/PduEvent/StateEvent satisfies - 1. Is a valid event, otherwise it is dropped. // 1. Is a valid event, otherwise it is dropped.
// Ruma/PduEvent/StateEvent satisfies this
// state-res checks signatures - 2. Passes signature checks, otherwise event is dropped.
// 3. Passes hash checks, otherwise it is redacted before being processed further.
// TODO: redact event if hashing fails
let (event_id, value) = crate::pdu::process_incoming_pdu(pdu); let (event_id, value) = crate::pdu::process_incoming_pdu(pdu);
// 2. Passes signature checks, otherwise event is dropped.
// 3. Passes hash checks, otherwise it is redacted before being processed further.
let keys = db.globals.keypair();
let mut pub_key_set = BTreeMap::new();
pub_key_set.insert(
"ed25519:1".to_string(),
String::from_utf8(keys.public_key().to_vec()).expect("public key is valid utf8"),
);
let mut pub_key_map = BTreeMap::new();
pub_key_map.insert("domain".to_string(), pub_key_set);
let value =
match ruma::signatures::verify_event(&pub_key_map, &value, &RoomVersionId::Version6) {
Ok(ver) => {
if let ruma::signatures::Verified::Signatures = ver {
match ruma::signatures::redact(&value, &RoomVersionId::Version6) {
Ok(obj) => obj,
Err(_) => {
resolved_map
.insert(event_id, Err("Room is unknown to this server".into()));
continue;
}
}
} else {
value
}
}
Err(_e) => {
resolved_map.insert(event_id, Err("Room is unknown to this server".into()));
continue;
}
};
let pdu = serde_json::from_value::<PduEvent>( let pdu = serde_json::from_value::<PduEvent>(
serde_json::to_value(&value).expect("CanonicalJsonObj is a valid JsonValue"), serde_json::to_value(&value).expect("CanonicalJsonObj is a valid JsonValue"),
) )
.expect("all ruma pdus are conduit pdus"); .expect("all ruma pdus are conduit pdus");
let room_id = &pdu.room_id;
// If we have no idea about this room skip the PDU // If we have no idea about this room skip the PDU
if !db.rooms.exists(room_id)? { if !db.rooms.exists(&pdu.room_id)? {
resolved_map.insert(event_id, Err("Room is unknown to this server".into())); resolved_map.insert(event_id, Err("Room is unknown to this server".into()));
continue; continue;
} }
let count = db.globals.next_count()?; // TODO: remove the need to convert to state_res
let mut pdu_id = room_id.as_bytes().to_vec(); let event = pdu.convert_for_state_res();
pdu_id.push(0xff); let previous = pdu
pdu_id.extend_from_slice(&count.to_be_bytes()); .prev_events
.first()
.map(|id| {
db.rooms
.get_pdu(id)
.expect("todo")
.map(|ev| ev.convert_for_state_res())
})
.flatten();
db.rooms.append_to_state(&pdu_id, &pdu, &db.globals)?; // 4.
let auth_events = db.rooms.get_auth_events(
db.rooms.append_pdu( &pdu.room_id,
&pdu, &pdu.kind,
value, &pdu.sender,
count, pdu.state_key.as_deref(),
pdu_id.clone().into(), pdu.content.clone(),
&db.globals,
&db.account_data,
&db.admin,
)?; )?;
if !state_res::event_auth::auth_check(
for appservice in db.appservice.iter_all().filter_map(|r| r.ok()) { &RoomVersionId::Version6,
db.sending.send_pdu_appservice(&appservice.0, &pdu_id)?; &event,
previous.clone(),
auth_events
.into_iter()
.map(|(k, v)| (k, v.convert_for_state_res()))
.collect(),
None,
)
.map_err(|_e| Error::Conflict("Auth check failed"))?
{
resolved_map.insert(
event.event_id(),
Err("Event has failed auth check with auth events".into()),
);
continue;
} }
resolved_map.insert(event_id, Ok::<(), String>(())); let mut previous_states = vec![];
for id in &pdu.prev_events {
if let Some(id) = db.rooms.get_pdu_id(id)? {
let state_hash = db
.rooms
.pdu_state_hash(&id)?
.expect("found pdu with no statehash");
let state = db.rooms.state_full(&pdu.room_id, &state_hash)?;
previous_states.push(state);
} else {
// fetch the state
match db
.sending
.send_federation_request(
&db.globals,
body.body.origin,
get_room_state_ids::v1::Request {
room_id: &pdu.room_id,
event_id: id,
},
)
.await
{
Ok(res) => todo!(),
Err(e) => panic!(e),
}
}
}
// 5. Passes authorization rules based on the state at the event, otherwise it is rejected.
let state_at_event = if previous_states.is_empty() {
// State is empty
Default::default()
} else if previous_states.len() == 1 {
previous_states[0].clone()
} else {
match state_res::StateResolution::resolve(
&pdu.room_id,
&RoomVersionId::Version6,
&previous_states
.into_iter()
.map(|map| {
map.into_iter()
.map(|(k, v)| (k, v.event_id))
.collect::<StateMap<_>>()
})
.collect::<Vec<_>>(),
None,
&db.rooms,
) {
Ok(res) => res
.into_iter()
.map(|(k, v)| (k, db.rooms.get_pdu(&v).unwrap().unwrap()))
.collect(),
Err(e) => panic!("{:?}", e),
}
};
if !state_res::event_auth::auth_check(
&RoomVersionId::Version6,
&event,
previous.clone(),
state_at_event
.into_iter()
.map(|(k, v)| (k, v.convert_for_state_res()))
.collect(),
None,
)
.map_err(|_e| Error::Conflict("Auth check failed"))?
{
// Event failed auth with state_at
resolved_map.insert(
event.event_id(),
Err("Event has failed auth check with state at the event".into()),
);
continue;
}
// The event could still be soft failed
append_state_soft(&db, &pdu)?;
// Gather the forward extremities and resolve
let forward_extrems = forward_extremity_ids(&db, &pdu.room_id)?;
let mut fork_states = vec![];
for id in &forward_extrems {
if let Some(id) = db.rooms.get_pdu_id(id)? {
let state_hash = db
.rooms
.pdu_state_hash(&id)?
.expect("found pdu with no statehash");
let state = db.rooms.state_full(&pdu.room_id, &state_hash)?;
fork_states.push(state);
} else {
// This is probably an error??
match db
.sending
.send_federation_request(
&db.globals,
body.body.origin,
get_room_state_ids::v1::Request {
room_id: &pdu.room_id,
event_id: id,
},
)
.await
{
Ok(res) => todo!(),
Err(e) => panic!(e),
}
}
}
// 6.
let state_at_forks = if fork_states.is_empty() {
// State is empty
Default::default()
} else if fork_states.len() == 1 {
fork_states[0].clone()
} else {
match state_res::StateResolution::resolve(
&pdu.room_id,
&RoomVersionId::Version6,
&fork_states
.into_iter()
.map(|map| {
map.into_iter()
.map(|(k, v)| (k, v.event_id))
.collect::<StateMap<_>>()
})
.collect::<Vec<_>>(),
None,
&db.rooms,
) {
Ok(res) => res
.into_iter()
.map(|(k, v)| (k, db.rooms.get_pdu(&v).unwrap().unwrap()))
.collect(),
Err(e) => panic!("{:?}", e),
}
};
if !state_res::event_auth::auth_check(
&RoomVersionId::Version6,
&event,
previous,
state_at_forks
.into_iter()
.map(|(k, v)| (k, v.convert_for_state_res()))
.collect(),
None,
)
.map_err(|_e| Error::Conflict("Auth check failed"))?
{
// Soft fail
resolved_map.insert(event.event_id(), Err("Event has been soft failed".into()));
} else {
append_state(&db, &pdu)?;
// Event has passed all auth/stateres checks
resolved_map.insert(event.event_id(), Ok(()));
}
} }
Ok(send_transaction_message::v1::Response { pdus: resolved_map }.into()) Ok(send_transaction_message::v1::Response { pdus: resolved_map }.into())
} }
fn forward_extremity_ids(db: &Database, room_id: &RoomId) -> Result<Vec<EventId>> {
todo!()
}
fn append_state(db: &Database, pdu: &PduEvent) -> Result<()> {
let count = db.globals.next_count()?;
let mut pdu_id = pdu.room_id.as_bytes().to_vec();
pdu_id.push(0xff);
pdu_id.extend_from_slice(&count.to_be_bytes());
db.rooms.append_to_state(&pdu_id, pdu, &db.globals)?;
db.rooms.append_pdu(
pdu,
&utils::to_canonical_object(pdu).expect("Pdu is valid canonical object"),
count,
pdu_id.clone().into(),
&db.globals,
&db.account_data,
&db.admin,
)?;
for appservice in db.appservice.iter_all().filter_map(|r| r.ok()) {
db.sending.send_pdu_appservice(&appservice.0, &pdu_id)?;
}
Ok(())
}
/// TODO: This should not write to the current room state (roomid_statehash)
fn append_state_soft(db: &Database, pdu: &PduEvent) -> Result<()> {
let count = db.globals.next_count()?;
let mut pdu_id = pdu.room_id.as_bytes().to_vec();
pdu_id.push(0xff);
pdu_id.extend_from_slice(&count.to_be_bytes());
db.rooms.append_to_state(&pdu_id, pdu, &db.globals)?;
db.rooms.append_pdu(
pdu,
&utils::to_canonical_object(pdu).expect("Pdu is valid canonical object"),
count,
pdu_id.clone().into(),
&db.globals,
&db.account_data,
&db.admin,
)?;
for appservice in db.appservice.iter_all().filter_map(|r| r.ok()) {
db.sending.send_pdu_appservice(&appservice.0, &pdu_id)?;
}
Ok(())
}
#[cfg_attr( #[cfg_attr(
feature = "conduit_bin", feature = "conduit_bin",
post("/_matrix/federation/v1/get_missing_events/<_>", data = "<body>") post("/_matrix/federation/v1/get_missing_events/<_>", data = "<body>")