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EventIndex: Store and restore the encryption info for encrypted events.

pull/21833/head
Damir Jelić 2020-06-09 13:53:27 +02:00
parent b35cde4546
commit 5c42294336
2 changed files with 49 additions and 4 deletions
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20
src/Searching.js
View File

@ -107,6 +107,26 @@ async function localSearch(searchTerm, roomId = undefined) {
const result = MatrixClientPeg.get()._processRoomEventsSearch(
emptyResult, response);
// Restore our encryption info so we can properly re-verify the events.
for (let i = 0; i < result.results.length; i++) {
const timeline = result.results[i].context.getTimeline();
for (let j = 0; j < timeline.length; j++) {
const ev = timeline[j];
if (ev.event.curve25519Key) {
ev.makeEncrypted(
"m.room.encrypted",
{ algorithm: ev.event.algorithm },
ev.event.curve25519Key,
ev.event.ed25519Key,
);
ev._forwardingCurve25519KeyChain = ev.event.forwardingCurve25519KeyChain;
delete ev.event.curve25519Key;
}
}
}
return result;
}

33
src/indexing/EventIndex.js
View File

@ -290,6 +290,33 @@ export default class EventIndex extends EventEmitter {
return validEventType && validMsgType && hasContentValue;
}
eventToJson(ev) {
const jsonEvent = ev.toJSON();
const e = ev.isEncrypted() ? jsonEvent.decrypted : jsonEvent;
if (ev.isEncrypted()) {
// Let us store some additional data so we can re-verify the event.
// The js-sdk checks if an event is encrypted using the algorithm,
// the sender key and ed25519 signing key are used to find the
// correct device that sent the event which allows us to check the
// verification state of the event, either directly or using cross
// signing.
e.curve25519Key = ev.getSenderKey();
e.ed25519Key = ev.getClaimedEd25519Key();
e.algorithm = ev.getWireContent().algorithm;
e.forwardingCurve25519KeyChain = ev.getForwardingCurve25519KeyChain();
} else {
// Make sure that unencrypted events don't contain any of that data,
// despite what the server might give to us.
delete e.curve25519Key;
delete e.ed25519Key;
delete e.algorithm;
delete e.forwardingCurve25519KeyChain;
}
return e;
}
/**
* Queue up live events to be added to the event index.
*
@ -300,8 +327,7 @@ export default class EventIndex extends EventEmitter {
if (!this.isValidEvent(ev)) return;
const jsonEvent = ev.toJSON();
const e = ev.isEncrypted() ? jsonEvent.decrypted : jsonEvent;
const e = this.eventToJson(ev);
const profile = {
displayname: ev.sender.rawDisplayName,
@ -477,8 +503,7 @@ export default class EventIndex extends EventEmitter {
// Let us convert the events back into a format that EventIndex can
// consume.
const events = filteredEvents.map((ev) => {
const jsonEvent = ev.toJSON();
const e = ev.isEncrypted() ? jsonEvent.decrypted : jsonEvent;
const e = this.eventToJson(ev);
let profile = {};
if (e.sender in profiles) profile = profiles[e.sender];