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Merge pull request #472 from vector-im/bwindels/fix-new-join-detect-one-write-phase

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Fix missing new joins preventing key shares
This commit is contained in:
Bruno Windels 2021-08-30 15:17:19 +02:00 committed by GitHub
parent 25d0cbe9a2 7fb5412176
commit a8f89c16bd
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 389 additions and 161 deletions
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2
src/matrix/SessionContainer.js
View file

@ -204,7 +204,7 @@ export class SessionContainer {
reconnector: this._reconnector,
});
this._sessionId = sessionInfo.id;
this._storage = await this._platform.storageFactory.create(sessionInfo.id);
this._storage = await this._platform.storageFactory.create(sessionInfo.id, log);
// no need to pass access token to session
const filteredSessionInfo = {
id: sessionInfo.id,

30
src/matrix/e2ee/DeviceTracker.js
View file

@ -19,6 +19,22 @@ import {verifyEd25519Signature, SIGNATURE_ALGORITHM} from "./common.js";
const TRACKING_STATUS_OUTDATED = 0;
const TRACKING_STATUS_UPTODATE = 1;
export function addRoomToIdentity(identity, userId, roomId) {
if (!identity) {
identity = {
userId: userId,
roomIds: [roomId],
deviceTrackingStatus: TRACKING_STATUS_OUTDATED,
};
return identity;
} else {
if (!identity.roomIds.includes(roomId)) {
identity.roomIds.push(roomId);
return identity;
}
}
}
// map 1 device from /keys/query response to DeviceIdentity
function deviceKeysAsDeviceIdentity(deviceSection) {
const deviceId = deviceSection["device_id"];
@ -107,17 +123,9 @@ export class DeviceTracker {
async _writeMember(member, txn) {
const {userIdentities} = txn;
const identity = await userIdentities.get(member.userId);
if (!identity) {
userIdentities.set({
userId: member.userId,
roomIds: [member.roomId],
deviceTrackingStatus: TRACKING_STATUS_OUTDATED,
});
} else {
if (!identity.roomIds.includes(member.roomId)) {
identity.roomIds.push(member.roomId);
userIdentities.set(identity);
}
const updatedIdentity = addRoomToIdentity(identity, member.userId, member.roomId);
if (updatedIdentity) {
userIdentities.set(updatedIdentity);
}
}

4
src/matrix/room/Room.js
View file

@ -30,6 +30,7 @@ const EVENT_ENCRYPTED_TYPE = "m.room.encrypted";
export class Room extends BaseRoom {
constructor(options) {
super(options);
// TODO: pass pendingEvents to start like pendingOperations?
const {pendingEvents} = options;
const relationWriter = new RelationWriter({
roomId: this.id,
@ -120,7 +121,8 @@ export class Room extends BaseRoom {
txn.roomMembers.removeAllForRoom(this.id);
}
const {entries: newEntries, updatedEntries, newLiveKey, memberChanges} =
await log.wrap("syncWriter", log => this._syncWriter.writeSync(roomResponse, isRejoin, txn, log), log.level.Detail);
await log.wrap("syncWriter", log => this._syncWriter.writeSync(
roomResponse, isRejoin, summaryChanges.hasFetchedMembers, txn, log), log.level.Detail);
if (decryptChanges) {
const decryption = await log.wrap("decryptChanges", log => decryptChanges.write(txn, log));
log.set("decryptionResults", decryption.results.size);

10
src/matrix/room/members/RoomMember.js
View file

@ -141,6 +141,16 @@ export class MemberChange {
return this.previousMembership === "join" && this.membership !== "join";
}
/** The result can be a false negative when all of these apply:
* - the complete set of room members hasn't been fetched yet.
* - the member event for this change was received in the
* state section and wasn't present in the timeline section.
* - the room response was limited, e.g. there was a gap.
*
* This is because during sync, in this case it is not possible
* to distinguish between a new member that joined the room
* during a gap and a lazy-loading member.
* */
get hasJoined() {
return this.previousMembership !== "join" && this.membership === "join";
}

350
src/matrix/room/timeline/persistence/MemberWriter.js
View file

@ -23,57 +23,27 @@ export class MemberWriter {
this._cache = new LRUCache(5, member => member.userId);
}
writeTimelineMemberEvent(event, txn) {
return this._writeMemberEvent(event, false, txn);
prepareMemberSync(stateEvents, timelineEvents, hasFetchedMembers) {
return new MemberSync(this, stateEvents, timelineEvents, hasFetchedMembers);
}
writeStateMemberEvent(event, isLimited, txn) {
// member events in the state section when the room response
// is not limited must always be lazy loaded members.
// If they are not, they will be repeated in the timeline anyway.
return this._writeMemberEvent(event, !isLimited, txn);
}
async _writeMemberEvent(event, isLazyLoadingMember, txn) {
const userId = event.state_key;
if (!userId) {
return;
}
const member = RoomMember.fromMemberEvent(this._roomId, event);
if (!member) {
return;
}
let existingMember = this._cache.get(userId);
async _writeMember(member, txn) {
let existingMember = this._cache.get(member.userId);
if (!existingMember) {
const memberData = await txn.roomMembers.get(this._roomId, userId);
const memberData = await txn.roomMembers.get(this._roomId, member.userId);
if (memberData) {
existingMember = new RoomMember(memberData);
}
}
// either never heard of the member, or something changed
if (!existingMember || !existingMember.equals(member)) {
txn.roomMembers.set(member.serialize());
this._cache.set(member);
// we also return a member change for lazy loading members if something changed,
// so when the dupe timeline event comes and it doesn't see a diff
// with the cache, we already returned the event here.
//
// it's just important that we don't consider the first LL event
// for a user we see as a membership change, or we'll share keys with
// them, etc...
if (isLazyLoadingMember && !existingMember) {
// we don't have a previous member, but we know this is not a
// membership change as it's a lazy loaded
// member so take the membership from the member
return new MemberChange(member, member.membership);
}
return new MemberChange(member, existingMember?.membership);
}
}
async lookupMember(userId, event, timelineEvents, txn) {
async lookupMember(userId, txn) {
let member = this._cache.get(userId);
if (!member) {
const memberData = await txn.roomMembers.get(this._roomId, userId);
@ -82,61 +52,154 @@ export class MemberWriter {
this._cache.set(member);
}
}
if (!member) {
// sometimes the member event isn't included in state, but rather in the timeline,
// even if it is not the first event in the timeline. In this case, go look for
// the last one before the event, or if none is found,
// the least recent matching member event in the timeline.
// The latter is needed because of new joins picking up their own display name
let foundEvent = false;
let memberEventBefore;
let firstMemberEvent;
for (let i = timelineEvents.length - 1; i >= 0; i -= 1) {
const e = timelineEvents[i];
let matchingEvent;
if (e.type === MEMBER_EVENT_TYPE && e.state_key === userId) {
matchingEvent = e;
firstMemberEvent = matchingEvent;
return member;
}
}
class MemberSync {
constructor(memberWriter, stateEvents, timelineEvents, hasFetchedMembers) {
this._memberWriter = memberWriter;
this._timelineEvents = timelineEvents;
this._hasFetchedMembers = hasFetchedMembers;
this._newStateMembers = null;
if (stateEvents) {
this._newStateMembers = this._stateEventsToMembers(stateEvents);
}
}
get _roomId() {
return this._memberWriter._roomId;
}
_stateEventsToMembers(stateEvents) {
let members;
for (const event of stateEvents) {
if (event.type === MEMBER_EVENT_TYPE) {
const member = RoomMember.fromMemberEvent(this._roomId, event);
if (member) {
if (!members) {
members = new Map();
}
members.set(member.userId, member);
}
}
}
return members;
}
_timelineEventsToMembers(timelineEvents) {
let members;
// iterate backwards to only add the last member in the timeline
for (let i = timelineEvents.length - 1; i >= 0; i--) {
const e = timelineEvents[i];
const userId = e.state_key;
if (e.type === MEMBER_EVENT_TYPE && !members?.has(userId)) {
const member = RoomMember.fromMemberEvent(this._roomId, e);
if (member) {
if (!members) {
members = new Map();
}
members.set(member.userId, member);
}
}
}
return members;
}
async lookupMemberAtEvent(userId, event, txn) {
let member;
if (this._timelineEvents) {
member = this._findPrecedingMemberEventInTimeline(userId, event);
if (member) {
return member;
}
}
member = this._newStateMembers?.get(userId);
if (member) {
return member;
}
return await this._memberWriter.lookupMember(userId, txn);
}
async write(txn) {
const memberChanges = new Map();
let newTimelineMembers;
if (this._timelineEvents) {
newTimelineMembers = this._timelineEventsToMembers(this._timelineEvents);
}
if (this._newStateMembers) {
for (const member of this._newStateMembers.values()) {
if (!newTimelineMembers?.has(member.userId)) {
const memberChange = await this._memberWriter._writeMember(member, txn);
if (memberChange) {
// if the member event appeared only in the state section,
// AND we haven't heard about it AND we haven't fetched all members yet (to avoid #470),
// this may be a lazy loading member (if it's not in a gap, we are certain
// it is a ll member, in a gap, we can't tell), so we pass in our own membership as
// as the previous one so we won't consider it a join to not have false positives (to avoid #192).
// see also MemberChange.hasJoined
const maybeLazyLoadingMember = !this._hasFetchedMembers && !memberChange.previousMembership;
if (maybeLazyLoadingMember) {
memberChange.previousMembership = member.membership;
}
memberChanges.set(memberChange.userId, memberChange);
}
}
}
}
if (newTimelineMembers) {
for (const member of newTimelineMembers.values()) {
const memberChange = await this._memberWriter._writeMember(member, txn);
if (memberChange) {
memberChanges.set(memberChange.userId, memberChange);
}
}
}
return memberChanges;
}
// try to find the first member event before the given event,
// so we respect historical display names within the chunk of timeline
_findPrecedingMemberEventInTimeline(userId, event) {
let eventIndex = -1;
for (let i = this._timelineEvents.length - 1; i >= 0; i--) {
const e = this._timelineEvents[i];
if (e.event_id === event.event_id) {
eventIndex = i;
break;
}
}
for (let i = eventIndex - 1; i >= 0; i--) {
const e = this._timelineEvents[i];
if (e.type === MEMBER_EVENT_TYPE && e.state_key === userId) {
const member = RoomMember.fromMemberEvent(this._roomId, e);
if (member) {
return member;
}
if (!foundEvent) {
if (e.event_id === event.event_id) {
foundEvent = true;
}
} else if (matchingEvent) {
memberEventBefore = matchingEvent;
break;
}
}
// first see if we found a member event before the event we're looking up the sender for
if (memberEventBefore) {
member = RoomMember.fromMemberEvent(this._roomId, memberEventBefore);
}
// and only if we didn't, fall back to the first member event,
// regardless of where it is positioned relative to the lookup event
else if (firstMemberEvent) {
member = RoomMember.fromMemberEvent(this._roomId, firstMemberEvent);
}
}
return member;
}
}
export function tests() {
let idCounter = 0;
function createMemberEvent(membership, userId, displayName, avatarUrl) {
idCounter += 1;
return {
content: {
membership,
"displayname": displayName,
"avatar_url": avatarUrl
},
event_id: `$${idCounter}`,
sender: userId,
"state_key": userId,
type: "m.room.member"
};
}
function createStorage(initialMembers = []) {
const members = new Map();
for (const m of initialMembers) {
@ -164,102 +227,195 @@ export function tests() {
const avatar = "mxc://hs.tld/def";
return {
"new join through state": async assert => {
"new join": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage();
const change = await writer.writeStateMemberEvent(createMemberEvent("join", alice), true, txn);
const memberSync = writer.prepareMemberSync([], [createMemberEvent("join", alice)], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert(change.hasJoined);
assert.equal(txn.members.get(alice).membership, "join");
},
"accept invite through state": async assert => {
"accept invite": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage([member("invite", alice)]);
const change = await writer.writeStateMemberEvent(createMemberEvent("join", alice), true, txn);
const memberSync = writer.prepareMemberSync([], [createMemberEvent("join", alice)], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert.equal(change.previousMembership, "invite");
assert(change.hasJoined);
assert.equal(txn.members.get(alice).membership, "join");
},
"change display name through timeline": async assert => {
"change display name": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage([member("join", alice, "Alice")]);
const change = await writer.writeTimelineMemberEvent(createMemberEvent("join", alice, "Alies"), txn);
const memberSync = writer.prepareMemberSync([], [createMemberEvent("join", alice, "Alies")], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert(!change.hasJoined);
assert.equal(change.member.displayName, "Alies");
assert.equal(txn.members.get(alice).displayName, "Alies");
},
"set avatar through timeline": async assert => {
"set avatar": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage([member("join", alice, "Alice")]);
const change = await writer.writeTimelineMemberEvent(createMemberEvent("join", alice, "Alice", avatar), txn);
const memberSync = writer.prepareMemberSync([], [createMemberEvent("join", alice, "Alice", avatar)], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert(!change.hasJoined);
assert.equal(change.member.avatarUrl, avatar);
assert.equal(txn.members.get(alice).avatarUrl, avatar);
},
"ignore redundant member event": async assert => {
"ignore redundant member event in timeline": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage([member("join", alice, "Alice", avatar)]);
const change = await writer.writeTimelineMemberEvent(createMemberEvent("join", alice, "Alice", avatar), txn);
assert(!change);
const memberSync = writer.prepareMemberSync([], [createMemberEvent("join", alice, "Alice", avatar)], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 0);
},
"ignore redundant member event in state": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage([member("join", alice, "Alice", avatar)]);
const memberSync = writer.prepareMemberSync([createMemberEvent("join", alice, "Alice", avatar)], [], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 0);
},
"leave": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage([member("join", alice, "Alice")]);
const change = await writer.writeTimelineMemberEvent(createMemberEvent("leave", alice, "Alice"), txn);
const memberSync = writer.prepareMemberSync([], [createMemberEvent("leave", alice, "Alice")], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert(change.hasLeft);
assert(!change.hasJoined);
},
"ban": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage([member("join", alice, "Alice")]);
const change = await writer.writeTimelineMemberEvent(createMemberEvent("ban", alice, "Alice"), txn);
const memberSync = writer.prepareMemberSync([], [createMemberEvent("ban", alice, "Alice")], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert(change.hasLeft);
assert(!change.hasJoined);
},
"reject invite": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage([member("invite", alice, "Alice")]);
const change = await writer.writeTimelineMemberEvent(createMemberEvent("leave", alice, "Alice"), txn);
const memberSync = writer.prepareMemberSync([], [createMemberEvent("leave", alice, "Alice")], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert(!change.hasLeft);
assert(!change.hasJoined);
},
"lazy loaded member we already know about doens't return change": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage([member("join", alice, "Alice")]);
const change = await writer.writeStateMemberEvent(createMemberEvent("join", alice, "Alice"), false, txn);
assert(!change);
const memberSync = writer.prepareMemberSync([createMemberEvent("join", alice, "Alice")], [], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 0);
},
"lazy loaded member we already know about changes display name": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage([member("join", alice, "Alice")]);
const change = await writer.writeStateMemberEvent(createMemberEvent("join", alice, "Alies"), false, txn);
const memberSync = writer.prepareMemberSync([createMemberEvent("join", alice, "Alies")], [], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert(!change.hasJoined);
assert.equal(change.member.displayName, "Alies");
},
"unknown lazy loaded member returns change, but not considered a membership change": async assert => {
"unknown lazy loaded member returns change, but not considered a join": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage();
const change = await writer.writeStateMemberEvent(createMemberEvent("join", alice, "Alice"), false, txn);
const memberSync = writer.prepareMemberSync([createMemberEvent("join", alice, "Alice")], [], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert(!change.hasJoined);
assert(!change.hasLeft);
assert.equal(change.member.membership, "join");
assert.equal(txn.members.get(alice).displayName, "Alice");
},
"newly joined member causes a change with lookup done first": async assert => {
const event = createMemberEvent("join", alice, "Alice");
"new join through both timeline and state": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage();
const member = await writer.lookupMember(event.sender, event, [event], txn);
assert(member);
const change = await writer.writeTimelineMemberEvent(event, txn);
assert(change);
const aliceJoin = createMemberEvent("join", alice, "Alice");
const memberSync = writer.prepareMemberSync([aliceJoin], [aliceJoin], false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert(change.hasJoined);
assert(!change.hasLeft);
},
"lookupMember returns closest member in the past": async assert => {
"change display name in timeline with lazy loaded member in state": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage();
const memberSync = writer.prepareMemberSync(
[createMemberEvent("join", alice, "Alice")],
[createMemberEvent("join", alice, "Alies")],
false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert(change.hasJoined);
assert(!change.hasLeft);
assert.equal(change.member.displayName, "Alies");
},
"lookupMemberAtEvent returns closest member in the past": async assert => {
const event1 = createMemberEvent("join", alice, "Alice");
const event2 = createMemberEvent("join", alice, "Alies");
const event3 = createMemberEvent("join", alice, "Alys");
const events = [event1, event2, event3];
// we write first because the MemberWriter assumes it is called before
// the SyncWriter does any lookups
const writer = new MemberWriter(roomId);
const txn = createStorage();
const member = await writer.lookupMember(event3.sender, event3, [event1, event2, event3], txn);
const memberSync = await writer.prepareMemberSync([], events, false);
let member = await memberSync.lookupMemberAtEvent(event1.sender, event1, txn);
assert.equal(member, undefined);
member = await memberSync.lookupMemberAtEvent(event2.sender, event2, txn);
assert.equal(member.displayName, "Alice");
member = await memberSync.lookupMemberAtEvent(event3.sender, event3, txn);
assert.equal(member.displayName, "Alies");
assert.equal(txn.members.size, 0);
const changes = await memberSync.write(txn);
assert.equal(txn.members.size, 1);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert(change.hasJoined);
},
"lookupMemberAtEvent falls back on state event": async assert => {
const event1 = createMemberEvent("join", alice, "Alice");
const event2 = createMemberEvent("join", alice, "Alies");
// we write first because the MemberWriter assumes it is called before
// the SyncWriter does any lookups
const writer = new MemberWriter(roomId);
const txn = createStorage();
const memberSync = await writer.prepareMemberSync([event1], [event2], false);
const member = await memberSync.lookupMemberAtEvent(event2.sender, event2, txn);
assert.equal(member.displayName, "Alice");
assert.equal(txn.members.size, 0);
const changes = await memberSync.write(txn);
assert.equal(txn.members.size, 1);
assert.equal(changes.size, 1);
const change = changes.get(alice);
assert(change.hasJoined);
},
"write works without event arrays": async assert => {
const writer = new MemberWriter(roomId);
const txn = createStorage();
const memberSync = await writer.prepareMemberSync(undefined, undefined, false);
const changes = await memberSync.write(txn);
assert.equal(changes.size, 0);
},
};
}

71
src/matrix/room/timeline/persistence/SyncWriter.js
View file

@ -133,38 +133,31 @@ export class SyncWriter {
return currentKey;
}
async _writeStateEvents(roomResponse, memberChanges, isLimited, txn, log) {
// persist state
const {state} = roomResponse;
if (Array.isArray(state?.events)) {
log.set("stateEvents", state.events.length);
for (const event of state.events) {
if (event.type === MEMBER_EVENT_TYPE) {
const memberChange = await this._memberWriter.writeStateMemberEvent(event, isLimited, txn);
if (memberChange) {
memberChanges.set(memberChange.userId, memberChange);
}
} else {
txn.roomState.set(this._roomId, event);
}
async _writeStateEvents(stateEvents, txn, log) {
let nonMemberStateEvents = 0;
for (const event of stateEvents) {
// member events are written prior by MemberWriter
if (event.type !== MEMBER_EVENT_TYPE) {
txn.roomState.set(this._roomId, event);
nonMemberStateEvents += 1;
}
}
log.set("stateEvents", nonMemberStateEvents);
}
async _writeTimeline(timeline, currentKey, memberChanges, txn, log) {
async _writeTimeline(timelineEvents, timeline, memberSync, currentKey, txn, log) {
const entries = [];
const updatedEntries = [];
if (Array.isArray(timeline?.events) && timeline.events.length) {
if (timelineEvents?.length) {
// only create a fragment when we will really write an event
currentKey = await this._ensureLiveFragment(currentKey, entries, timeline, txn, log);
const events = deduplicateEvents(timeline.events);
log.set("timelineEvents", events.length);
log.set("timelineEvents", timelineEvents.length);
let timelineStateEventCount = 0;
for(const event of events) {
for(const event of timelineEvents) {
// store event in timeline
currentKey = currentKey.nextKey();
const storageEntry = createEventEntry(currentKey, this._roomId, event);
let member = await this._memberWriter.lookupMember(event.sender, event, events, txn);
let member = await memberSync.lookupMemberAtEvent(event.sender, event, txn);
if (member) {
storageEntry.displayName = member.displayName;
storageEntry.avatarUrl = member.avatarUrl;
@ -178,17 +171,11 @@ export class SyncWriter {
}
// update state events after writing event, so for a member event,
// we only update the member info after having written the member event
// to the timeline, as we want that event to have the old profile info
if (typeof event.state_key === "string") {
// to the timeline, as we want that event to have the old profile info.
// member events are written prior by MemberWriter.
if (typeof event.state_key === "string" && event.type !== MEMBER_EVENT_TYPE) {
timelineStateEventCount += 1;
if (event.type === MEMBER_EVENT_TYPE) {
const memberChange = await this._memberWriter.writeTimelineMemberEvent(event, txn);
if (memberChange) {
memberChanges.set(memberChange.userId, memberChange);
}
} else {
txn.roomState.set(this._roomId, event);
}
txn.roomState.set(this._roomId, event);
}
}
log.set("timelineStateEventCount", timelineStateEventCount);
@ -224,14 +211,13 @@ export class SyncWriter {
* @type {SyncWriterResult}
* @property {Array<BaseEntry>} entries new timeline entries written
* @property {EventKey} newLiveKey the advanced key to write events at
* @property {Map<string, MemberChange>} memberChanges member changes in the processed sync ny user id
*
* @param {Object} roomResponse [description]
* @param {boolean} isRejoin whether the room was rejoined in the sync being processed
* @param {Transaction} txn
* @return {SyncWriterResult}
*/
async writeSync(roomResponse, isRejoin, txn, log) {
async writeSync(roomResponse, isRejoin, hasFetchedMembers, txn, log) {
let {timeline} = roomResponse;
// we have rejoined the room after having synced it before,
// check for overlap with the last synced event
@ -239,13 +225,22 @@ export class SyncWriter {
if (isRejoin) {
timeline = await this._handleRejoinOverlap(timeline, txn, log);
}
const memberChanges = new Map();
// important this happens before _writeTimeline so
// members are available in the transaction
await this._writeStateEvents(roomResponse, memberChanges, timeline?.limited, txn, log);
let timelineEvents;
if (Array.isArray(timeline?.events)) {
timelineEvents = deduplicateEvents(timeline.events);
}
const {state} = roomResponse;
let stateEvents;
if (Array.isArray(state?.events)) {
stateEvents = state.events;
}
const memberSync = this._memberWriter.prepareMemberSync(stateEvents, timelineEvents, hasFetchedMembers);
if (stateEvents) {
await this._writeStateEvents(stateEvents, txn, log);
}
const {currentKey, entries, updatedEntries} =
await this._writeTimeline(timeline, this._lastLiveKey, memberChanges, txn, log);
log.set("memberChanges", memberChanges.size);
await this._writeTimeline(timelineEvents, timeline, memberSync, this._lastLiveKey, txn, log);
const memberChanges = await memberSync.write(txn);
return {entries, updatedEntries, newLiveKey: currentKey, memberChanges};
}

20
src/matrix/storage/idb/StorageFactory.js
View file

@ -21,8 +21,9 @@ import { schema } from "./schema.js";
import { detectWebkitEarlyCloseTxnBug } from "./quirks.js";
const sessionName = sessionId => `hydrogen_session_${sessionId}`;
const openDatabaseWithSessionId = function(sessionId, idbFactory) {
return openDatabase(sessionName(sessionId), createStores, schema.length, idbFactory);
const openDatabaseWithSessionId = function(sessionId, idbFactory, log) {
const create = (db, txn, oldVersion, version) => createStores(db, txn, oldVersion, version, log);
return openDatabase(sessionName(sessionId), create, schema.length, idbFactory);
}
async function requestPersistedStorage() {
@ -49,7 +50,7 @@ export class StorageFactory {
this._IDBKeyRange = IDBKeyRange;
}
async create(sessionId) {
async create(sessionId, log) {
await this._serviceWorkerHandler?.preventConcurrentSessionAccess(sessionId);
requestPersistedStorage().then(persisted => {
// Firefox lies here though, and returns true even if the user denied the request
@ -59,7 +60,7 @@ export class StorageFactory {
});
const hasWebkitEarlyCloseTxnBug = await detectWebkitEarlyCloseTxnBug(this._idbFactory);
const db = await openDatabaseWithSessionId(sessionId, this._idbFactory);
const db = await openDatabaseWithSessionId(sessionId, this._idbFactory, log);
return new Storage(db, this._IDBKeyRange, hasWebkitEarlyCloseTxnBug);
}
@ -80,10 +81,11 @@ export class StorageFactory {
}
}
async function createStores(db, txn, oldVersion, version) {
async function createStores(db, txn, oldVersion, version, log) {
const startIdx = oldVersion || 0;
for(let i = startIdx; i < version; ++i) {
await schema[i](db, txn);
}
return log.wrap({l: "storage migration", oldVersion, version}, async log => {
for(let i = startIdx; i < version; ++i) {
await log.wrap(`v${i + 1}`, log => schema[i](db, txn, log));
}
});
}

47
src/matrix/storage/idb/schema.js
View file

@ -1,8 +1,10 @@
import {iterateCursor, reqAsPromise} from "./utils.js";
import {RoomMember, EVENT_TYPE as MEMBER_EVENT_TYPE} from "../../room/members/RoomMember.js";
import {addRoomToIdentity} from "../../e2ee/DeviceTracker.js";
import {RoomMemberStore} from "./stores/RoomMemberStore.js";
import {SessionStore} from "./stores/SessionStore.js";
import {encodeScopeTypeKey} from "./stores/OperationStore.js";
import {MAX_UNICODE} from "./stores/common.js";
// FUNCTIONS SHOULD ONLY BE APPENDED!!
// the index in the array is the database version
@ -17,6 +19,7 @@ export const schema = [
createArchivedRoomSummaryStore,
migrateOperationScopeIndex,
createTimelineRelationsStore,
fixMissingRoomsInUserIdentities
];
// TODO: how to deal with git merge conflicts of this array?
@ -142,3 +145,47 @@ async function migrateOperationScopeIndex(db, txn) {
function createTimelineRelationsStore(db) {
db.createObjectStore("timelineRelations", {keyPath: "key"});
}
//v11 doesn't change the schema, but ensures all userIdentities have all the roomIds they should (see #470)
async function fixMissingRoomsInUserIdentities(db, txn, log) {
const roomSummaryStore = txn.objectStore("roomSummary");
const trackedRoomIds = [];
await iterateCursor(roomSummaryStore.openCursor(), roomSummary => {
if (roomSummary.isTrackingMembers) {
trackedRoomIds.push(roomSummary.roomId);
}
});
const outboundGroupSessionsStore = txn.objectStore("outboundGroupSessions");
const userIdentitiesStore = txn.objectStore("userIdentities");
const roomMemberStore = txn.objectStore("roomMembers");
for (const roomId of trackedRoomIds) {
let foundMissing = false;
const joinedUserIds = [];
const memberRange = IDBKeyRange.bound(roomId, `${roomId}|${MAX_UNICODE}`, true, true);
await log.wrap({l: "room", id: roomId}, async log => {
await iterateCursor(roomMemberStore.openCursor(memberRange), member => {
if (member.membership === "join") {
joinedUserIds.push(member.userId);
}
});
log.set("joinedUserIds", joinedUserIds.length);
for (const userId of joinedUserIds) {
const identity = await reqAsPromise(userIdentitiesStore.get(userId));
const originalRoomCount = identity?.roomIds?.length;
const updatedIdentity = addRoomToIdentity(identity, userId, roomId);
if (updatedIdentity) {
log.log({l: `fixing up`, id: userId,
roomsBefore: originalRoomCount, roomsAfter: updatedIdentity.roomIds.length});
userIdentitiesStore.put(updatedIdentity);
foundMissing = true;
}
}
log.set("foundMissing", foundMissing);
if (foundMissing) {
// clear outbound megolm session,
// so we'll create a new one on the next message that will be properly shared
outboundGroupSessionsStore.delete(roomId);
}
});
}
}

11
src/matrix/storage/idb/utils.js
View file

@ -66,11 +66,18 @@ export function decodeUint32(str) {
export function openDatabase(name, createObjectStore, version, idbFactory = window.indexedDB) {
const req = idbFactory.open(name, version);
req.onupgradeneeded = (ev) => {
req.onupgradeneeded = async (ev) => {
const db = ev.target.result;
const txn = ev.target.transaction;
const oldVersion = ev.oldVersion;
createObjectStore(db, txn, oldVersion, version);
try {
await createObjectStore(db, txn, oldVersion, version);
} catch (err) {
// try aborting on error, if that hasn't been done already
try {
txn.abort();
} catch (err) {}
}
};
return reqAsPromise(req);
}

5
src/mocks/Storage.js
View file

@ -16,7 +16,8 @@ limitations under the License.
import {FDBFactory, FDBKeyRange} from "../../lib/fake-indexeddb/index.js";
import {StorageFactory} from "../matrix/storage/idb/StorageFactory.js";
import {NullLogItem} from "../logging/NullLogger.js";
export function createMockStorage() {
return new StorageFactory(null, new FDBFactory(), FDBKeyRange).create(1);
}
return new StorageFactory(null, new FDBFactory(), FDBKeyRange).create(1, new NullLogItem());
}