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dendrite/test/room.go
Till 088ad1dd21
Fix outliers whose auth_events are in a different room are correctly rejected (#2791)
Fixes `outliers whose auth_events are in a different room are correctly
rejected`, by validating that auth events are all from the same room and
not using rejected events for event auth.
2022-10-14 09:14:54 +02:00

270 lines
7.5 KiB
Go

// Copyright 2022 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package test
import (
"encoding/json"
"fmt"
"sync/atomic"
"testing"
"time"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/dendrite/internal/eventutil"
)
type Preset int
var (
PresetNone Preset = 0
PresetPrivateChat Preset = 1
PresetPublicChat Preset = 2
PresetTrustedPrivateChat Preset = 3
roomIDCounter = int64(0)
)
type Room struct {
ID string
Version gomatrixserverlib.RoomVersion
preset Preset
visibility gomatrixserverlib.HistoryVisibility
creator *User
authEvents gomatrixserverlib.AuthEvents
currentState map[string]*gomatrixserverlib.HeaderedEvent
events []*gomatrixserverlib.HeaderedEvent
}
// Create a new test room. Automatically creates the initial create events.
func NewRoom(t *testing.T, creator *User, modifiers ...roomModifier) *Room {
t.Helper()
counter := atomic.AddInt64(&roomIDCounter, 1)
if creator.srvName == "" {
t.Fatalf("NewRoom: creator doesn't belong to a server: %+v", *creator)
}
r := &Room{
ID: fmt.Sprintf("!%d:%s", counter, creator.srvName),
creator: creator,
authEvents: gomatrixserverlib.NewAuthEvents(nil),
preset: PresetPublicChat,
Version: gomatrixserverlib.RoomVersionV9,
currentState: make(map[string]*gomatrixserverlib.HeaderedEvent),
visibility: gomatrixserverlib.HistoryVisibilityShared,
}
for _, m := range modifiers {
m(t, r)
}
r.insertCreateEvents(t)
return r
}
func (r *Room) MustGetAuthEventRefsForEvent(t *testing.T, needed gomatrixserverlib.StateNeeded) []gomatrixserverlib.EventReference {
t.Helper()
a, err := needed.AuthEventReferences(&r.authEvents)
if err != nil {
t.Fatalf("MustGetAuthEvents: %v", err)
}
return a
}
func (r *Room) ForwardExtremities() []string {
if len(r.events) == 0 {
return nil
}
return []string{
r.events[len(r.events)-1].EventID(),
}
}
func (r *Room) insertCreateEvents(t *testing.T) {
t.Helper()
var joinRule gomatrixserverlib.JoinRuleContent
var hisVis gomatrixserverlib.HistoryVisibilityContent
plContent := eventutil.InitialPowerLevelsContent(r.creator.ID)
switch r.preset {
case PresetTrustedPrivateChat:
fallthrough
case PresetPrivateChat:
joinRule.JoinRule = "invite"
hisVis.HistoryVisibility = gomatrixserverlib.HistoryVisibilityShared
case PresetPublicChat:
joinRule.JoinRule = "public"
hisVis.HistoryVisibility = gomatrixserverlib.HistoryVisibilityShared
}
if r.visibility != "" {
hisVis.HistoryVisibility = r.visibility
}
r.CreateAndInsert(t, r.creator, gomatrixserverlib.MRoomCreate, map[string]interface{}{
"creator": r.creator.ID,
"room_version": r.Version,
}, WithStateKey(""))
r.CreateAndInsert(t, r.creator, gomatrixserverlib.MRoomMember, map[string]interface{}{
"membership": "join",
}, WithStateKey(r.creator.ID))
r.CreateAndInsert(t, r.creator, gomatrixserverlib.MRoomPowerLevels, plContent, WithStateKey(""))
r.CreateAndInsert(t, r.creator, gomatrixserverlib.MRoomJoinRules, joinRule, WithStateKey(""))
r.CreateAndInsert(t, r.creator, gomatrixserverlib.MRoomHistoryVisibility, hisVis, WithStateKey(""))
}
// Create an event in this room but do not insert it. Does not modify the room in any way (depth, fwd extremities, etc) so is thread-safe.
func (r *Room) CreateEvent(t *testing.T, creator *User, eventType string, content interface{}, mods ...eventModifier) *gomatrixserverlib.HeaderedEvent {
t.Helper()
depth := 1 + len(r.events) // depth starts at 1
// possible event modifiers (optional fields)
mod := &eventMods{}
for _, m := range mods {
m(mod)
}
if mod.privKey == nil {
mod.privKey = creator.privKey
}
if mod.keyID == "" {
mod.keyID = creator.keyID
}
if mod.originServerTS.IsZero() {
mod.originServerTS = time.Now()
}
if mod.origin == "" {
mod.origin = creator.srvName
}
var unsigned gomatrixserverlib.RawJSON
var err error
if mod.unsigned != nil {
unsigned, err = json.Marshal(mod.unsigned)
if err != nil {
t.Fatalf("CreateEvent[%s]: failed to marshal unsigned field: %s", eventType, err)
}
}
builder := &gomatrixserverlib.EventBuilder{
Sender: creator.ID,
RoomID: r.ID,
Type: eventType,
StateKey: mod.stateKey,
Depth: int64(depth),
Unsigned: unsigned,
}
err = builder.SetContent(content)
if err != nil {
t.Fatalf("CreateEvent[%s]: failed to SetContent: %s", eventType, err)
}
if depth > 1 {
builder.PrevEvents = []gomatrixserverlib.EventReference{r.events[len(r.events)-1].EventReference()}
}
eventsNeeded, err := gomatrixserverlib.StateNeededForEventBuilder(builder)
if err != nil {
t.Fatalf("CreateEvent[%s]: failed to StateNeededForEventBuilder: %s", eventType, err)
}
refs, err := eventsNeeded.AuthEventReferences(&r.authEvents)
if err != nil {
t.Fatalf("CreateEvent[%s]: failed to AuthEventReferences: %s", eventType, err)
}
builder.AuthEvents = refs
if len(mod.authEvents) > 0 {
builder.AuthEvents = mod.authEvents
}
ev, err := builder.Build(
mod.originServerTS, mod.origin, mod.keyID,
mod.privKey, r.Version,
)
if err != nil {
t.Fatalf("CreateEvent[%s]: failed to build event: %s", eventType, err)
}
if err = gomatrixserverlib.Allowed(ev, &r.authEvents); err != nil {
t.Fatalf("CreateEvent[%s]: failed to verify event was allowed: %s", eventType, err)
}
headeredEvent := ev.Headered(r.Version)
headeredEvent.Visibility = r.visibility
return headeredEvent
}
// Add a new event to this room DAG. Not thread-safe.
func (r *Room) InsertEvent(t *testing.T, he *gomatrixserverlib.HeaderedEvent) {
t.Helper()
// Add the event to the list of auth/state events
r.events = append(r.events, he)
if he.StateKey() != nil {
err := r.authEvents.AddEvent(he.Unwrap())
if err != nil {
t.Fatalf("InsertEvent: failed to add event to auth events: %s", err)
}
r.currentState[he.Type()+" "+*he.StateKey()] = he
}
}
func (r *Room) Events() []*gomatrixserverlib.HeaderedEvent {
return r.events
}
func (r *Room) CurrentState() []*gomatrixserverlib.HeaderedEvent {
events := make([]*gomatrixserverlib.HeaderedEvent, len(r.currentState))
i := 0
for _, e := range r.currentState {
events[i] = e
i++
}
return events
}
func (r *Room) CreateAndInsert(t *testing.T, creator *User, eventType string, content interface{}, mods ...eventModifier) *gomatrixserverlib.HeaderedEvent {
t.Helper()
he := r.CreateEvent(t, creator, eventType, content, mods...)
r.InsertEvent(t, he)
return he
}
// All room modifiers are below
type roomModifier func(t *testing.T, r *Room)
func RoomPreset(p Preset) roomModifier {
return func(t *testing.T, r *Room) {
switch p {
case PresetPrivateChat:
fallthrough
case PresetPublicChat:
fallthrough
case PresetTrustedPrivateChat:
fallthrough
case PresetNone:
r.preset = p
default:
t.Errorf("invalid RoomPreset: %v", p)
}
}
}
func RoomHistoryVisibility(vis gomatrixserverlib.HistoryVisibility) roomModifier {
return func(t *testing.T, r *Room) {
r.visibility = vis
}
}
func RoomVersion(ver gomatrixserverlib.RoomVersion) roomModifier {
return func(t *testing.T, r *Room) {
r.Version = ver
}
}