forked from mystiq/hydrogen-web
only apply sync changes in room summary once txn is committed
- also remove m.room.aliases support as they were wrongly implemented and now obsolete - don't count invited and joined members according to m.room.member events anymore as it was also wrongly implemented (only when prev!==new membership, but on initial sync we only get last member event, which might have been a nick change
This commit is contained in:
Bruno Windels
parent
fc741272ba
commit
ac4a7f971b
3 changed files with 151 additions and 185 deletions
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@ -20,18 +20,19 @@ export default class Room extends EventEmitter {
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this._user = user;
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}
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async persistSync(roomResponse, membership, txn) {
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const summaryChanged = this._summary.applySync(roomResponse, membership, txn);
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async writeSync(roomResponse, membership, txn) {
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const summaryChanges = this._summary.writeSync(roomResponse, membership, txn);
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const {entries, newLiveKey} = await this._syncWriter.writeSync(roomResponse, txn);
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let removedPendingEvents;
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if (roomResponse.timeline && roomResponse.timeline.events) {
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removedPendingEvents = this._sendQueue.removeRemoteEchos(roomResponse.timeline.events, txn);
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}
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return {summaryChanged, newTimelineEntries: entries, newLiveKey, removedPendingEvents};
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return {summaryChanges, newTimelineEntries: entries, newLiveKey, removedPendingEvents};
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}
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emitSync({summaryChanged, newTimelineEntries, newLiveKey, removedPendingEvents}) {
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if (summaryChanged) {
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afterSync({summaryChanges, newTimelineEntries, newLiveKey, removedPendingEvents}) {
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if (summaryChanges) {
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this._summary.afterSync(summaryChanges);
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this.emit("change");
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this._emitCollectionChange(this);
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}
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@ -1,205 +1,170 @@
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// import SummaryMembers from "./members";
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function applySyncResponse(data, roomResponse, membership) {
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if (roomResponse.summary) {
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data = updateSummary(data, roomResponse.summary);
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}
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if (membership !== data.membership) {
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data = data.cloneIfNeeded();
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data.membership = membership;
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}
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// state comes before timeline
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if (roomResponse.state) {
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data = roomResponse.state.events.reduce(processEvent, data);
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}
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if (roomResponse.timeline) {
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data = roomResponse.timeline.events.reduce(processEvent, data);
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}
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return data;
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}
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function processEvent(data, event) {
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if (event.type === "m.room.encryption") {
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if (!data.isEncrypted) {
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data = data.cloneIfNeeded();
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data.isEncrypted = true;
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}
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}
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if (event.type === "m.room.name") {
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const newName = event.content && event.content.name;
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if (newName !== data.name) {
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data = data.cloneIfNeeded();
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data.name = newName;
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}
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} else if (event.type === "m.room.message") {
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const content = event.content;
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const body = content && content.body;
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const msgtype = content && content.msgtype;
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if (msgtype === "m.text") {
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data = data.cloneIfNeeded();
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data.lastMessageBody = body;
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}
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} else if (event.type === "m.room.canonical_alias") {
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const content = event.content;
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data = data.cloneIfNeeded();
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data.canonicalAlias = content.alias;
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data.altAliases = content.alt_aliases;
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}
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return data;
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}
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function updateSummary(data, summary) {
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const heroes = summary["m.heroes"];
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const inviteCount = summary["m.joined_member_count"];
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const joinCount = summary["m.invited_member_count"];
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if (heroes) {
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data = data.cloneIfNeeded();
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data.heroes = heroes;
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}
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if (Number.isInteger(inviteCount)) {
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data = data.cloneIfNeeded();
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data.inviteCount = inviteCount;
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}
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if (Number.isInteger(joinCount)) {
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data = data.cloneIfNeeded();
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data.joinCount = joinCount;
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}
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return data;
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}
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class SummaryData {
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constructor(copy, roomId) {
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this.roomId = copy ? copy.roomId : roomId;
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this.name = copy ? copy.name : null;
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this.lastMessageBody = copy ? copy.lastMessageBody : null;
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this.unreadCount = copy ? copy.unreadCount : null;
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this.mentionCount = copy ? copy.mentionCount : null;
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this.isEncrypted = copy ? copy.isEncrypted : null;
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this.isDirectMessage = copy ? copy.isDirectMessage : null;
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this.membership = copy ? copy.membership : null;
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this.inviteCount = copy ? copy.inviteCount : 0;
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this.joinCount = copy ? copy.joinCount : 0;
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this.heroes = copy ? copy.heroes : null;
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this.canonicalAlias = copy ? copy.canonicalAlias : null;
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this.altAliases = copy ? copy.altAliases : null;
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this.cloned = copy ? true : false;
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}
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cloneIfNeeded() {
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if (this.cloned) {
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return this;
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} else {
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return new SummaryData(this);
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}
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}
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serialize() {
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const {cloned, ...serializedProps} = this;
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return serializedProps;
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}
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}
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export default class RoomSummary {
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constructor(roomId) {
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// this._members = new SummaryMembers();
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this._roomId = roomId;
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this._name = null;
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this._lastMessageBody = null;
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this._unreadCount = null;
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this._mentionCount = null;
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this._isEncrypted = null;
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this._isDirectMessage = null;
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this._membership = null;
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this._inviteCount = 0;
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this._joinCount = 0;
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this._readMarkerEventId = null;
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this._heroes = null;
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this._canonicalAlias = null;
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this._aliases = null;
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this._data = new SummaryData(null, roomId);
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}
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get name() {
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if (this._name) {
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return this._name;
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if (this._data.name) {
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return this._data.name;
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}
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if (this._canonicalAlias) {
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return this._canonicalAlias;
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if (this._data.canonicalAlias) {
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return this._data.canonicalAlias;
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}
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if (Array.isArray(this._aliases) && this._aliases.length !== 0) {
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return this._aliases[0];
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if (Array.isArray(this._data.altAliases) && this._data.altAliases.length !== 0) {
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return this._data.altAliases[0];
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}
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if (Array.isArray(this._heroes) && this._heroes.length !== 0) {
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return this._heroes.join(", ");
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if (Array.isArray(this._data.heroes) && this._data.heroes.length !== 0) {
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return this._data.heroes.join(", ");
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}
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return this._roomId;
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return this._data.roomId;
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}
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get lastMessage() {
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return this._lastMessageBody;
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return this._data.lastMessageBody;
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}
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get inviteCount() {
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return this._inviteCount;
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return this._data.inviteCount;
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}
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get joinCount() {
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return this._joinCount;
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return this._data.joinCount;
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}
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applySync(roomResponse, membership, txn) {
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const changed = this._processSyncResponse(roomResponse, membership);
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if (changed) {
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this._persist(txn);
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writeSync(roomResponse, membership, txn) {
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// clear cloned flag, so cloneIfNeeded makes a copy and
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// this._data is not modified if any field is changed.
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this._data.cloned = false;
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const data = applySyncResponse(this._data, roomResponse, membership);
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if (data !== this._data) {
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// need to think here how we want to persist
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// things like unread status (as read marker, or unread count)?
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// we could very well load additional things in the load method
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// ... the trade-off is between constantly writing the summary
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// on every sync, or doing a bit of extra reading on load
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// and have in-memory only variables for visualization
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txn.roomSummary.set(data.serialize());
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return data;
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}
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return changed;
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}
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afterSync(data) {
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this._data = data;
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}
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async load(summary) {
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this._roomId = summary.roomId;
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this._name = summary.name;
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this._lastMessageBody = summary.lastMessageBody;
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this._unreadCount = summary.unreadCount;
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this._mentionCount = summary.mentionCount;
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this._isEncrypted = summary.isEncrypted;
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this._isDirectMessage = summary.isDirectMessage;
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this._membership = summary.membership;
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this._inviteCount = summary.inviteCount;
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this._joinCount = summary.joinCount;
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this._readMarkerEventId = summary.readMarkerEventId;
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this._heroes = summary.heroes;
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this._aliases = summary.aliases;
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this._canonicalAlias = summary.canonicalAlias;
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}
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_persist(txn) {
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// need to think here how we want to persist
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// things like unread status (as read marker, or unread count)?
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// we could very well load additional things in the load method
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// ... the trade-off is between constantly writing the summary
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// on every sync, or doing a bit of extra reading on load
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// and have in-memory only variables for visualization
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const summary = {
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roomId: this._roomId,
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name: this._name,
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lastMessageBody: this._lastMessageBody,
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unreadCount: this._unreadCount,
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mentionCount: this._mentionCount,
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isEncrypted: this._isEncrypted,
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isDirectMessage: this._isDirectMessage,
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membership: this._membership,
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inviteCount: this._inviteCount,
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joinCount: this._joinCount,
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readMarkerEventId: this._readMarkerEventId,
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heroes: this._heroes,
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aliases: this._aliases,
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canonicalAlias: this._canonicalAlias,
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};
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return txn.roomSummary.set(summary);
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}
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_processSyncResponse(roomResponse, membership) {
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let changed = false;
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if (roomResponse.summary) {
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this._updateSummary(roomResponse.summary);
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changed = true;
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}
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if (membership !== this._membership) {
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this._membership = membership;
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changed = true;
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}
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// state comes before timeline
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if (roomResponse.state) {
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changed = roomResponse.state.events.reduce((changed, e) => {
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return this._processEvent(e) || changed;
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}, changed);
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}
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if (roomResponse.timeline) {
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changed = roomResponse.timeline.events.reduce((changed, e) => {
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return this._processEvent(e) || changed;
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}, changed);
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}
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return changed;
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}
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_processEvent(event) {
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if (event.type === "m.room.encryption") {
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if (!this._isEncrypted) {
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this._isEncrypted = true;
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return true;
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}
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}
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if (event.type === "m.room.name") {
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const newName = event.content && event.content.name;
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if (newName !== this._name) {
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this._name = newName;
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return true;
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}
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} else if (event.type === "m.room.member") {
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return this._processMembership(event);
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} else if (event.type === "m.room.message") {
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const content = event.content;
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const body = content && content.body;
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const msgtype = content && content.msgtype;
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if (msgtype === "m.text") {
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this._lastMessageBody = body;
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return true;
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}
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} else if (event.type === "m.room.canonical_alias") {
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const content = event.content;
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this._canonicalAlias = content.alias;
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return true;
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} else if (event.type === "m.room.aliases") {
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const content = event.content;
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this._aliases = content.aliases;
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return true;
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}
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return false;
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}
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_processMembership(event) {
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let changed = false;
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const prevMembership = event.prev_content && event.prev_content.membership;
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if (!event.content) {
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return changed;
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}
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const content = event.content;
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const membership = content.membership;
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// danger of a replayed event getting the count out of sync
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// but summary api will solve this.
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// otherwise we'd have to store all the member ids in here
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if (membership !== prevMembership) {
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switch (prevMembership) {
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case "invite": --this._inviteCount; break;
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case "join": --this._joinCount; break;
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}
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switch (membership) {
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case "invite": ++this._inviteCount; break;
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case "join": ++this._joinCount; break;
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}
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changed = true;
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}
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// if (membership === "join" && content.name) {
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// // TODO: avatar_url
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// changed = this._members.applyMember(content.name, content.state_key) || changed;
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// }
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return changed;
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}
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_updateSummary(summary) {
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const heroes = summary["m.heroes"];
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const inviteCount = summary["m.joined_member_count"];
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const joinCount = summary["m.invited_member_count"];
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if (heroes) {
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this._heroes = heroes;
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}
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if (Number.isInteger(inviteCount)) {
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this._inviteCount = inviteCount;
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}
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if (Number.isInteger(joinCount)) {
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this._joinCount = joinCount;
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}
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this._data = new SummaryData(summary);
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}
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}
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export function tests() {
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return {
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"membership trigger change": function(assert) {
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const summary = new RoomSummary("id");
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const changes = summary.writeSync({}, "join");
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assert(changes);
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assert(changes.changed);
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}
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}
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}
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@ -97,7 +97,7 @@ export default class Sync extends EventEmitter {
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room = this._session.createRoom(roomId);
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}
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console.log(` * applying sync response to room ${roomId} ...`);
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const changes = await room.persistSync(roomResponse, membership, syncTxn);
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const changes = await room.writeSync(roomResponse, membership, syncTxn);
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roomChanges.push({room, changes});
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});
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await Promise.all(promises);
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@ -120,7 +120,7 @@ export default class Sync extends EventEmitter {
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this._session.afterSync(sessionChanges);
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// emit room related events after txn has been closed
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for(let {room, changes} of roomChanges) {
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room.emitSync(changes);
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room.afterSync(changes);
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}
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return syncToken;
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