Hhertz/node_modules/matrix-bot-sdk/lib/e2ee/RustEngine.js
2025-07-31 23:47:20 +03:00

132 lines
6.1 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.RustEngine = exports.SYNC_LOCK_NAME = void 0;
const matrix_sdk_crypto_nodejs_1 = require("@matrix-org/matrix-sdk-crypto-nodejs");
const AsyncLock = require("async-lock");
const Crypto_1 = require("../models/Crypto");
const EncryptionEvent_1 = require("../models/events/EncryptionEvent");
/**
* @internal
*/
exports.SYNC_LOCK_NAME = "sync";
/**
* @internal
*/
class RustEngine {
constructor(machine, client) {
this.machine = machine;
this.client = client;
this.lock = new AsyncLock();
}
async run() {
await this.runOnly(); // run everything, but with syntactic sugar
}
async runOnly(...types) {
// Note: we should not be running this until it runs out, so cache the value into a variable
const requests = await this.machine.outgoingRequests();
for (const request of requests) {
if (types.length && !types.includes(request.type))
continue;
switch (request.type) {
case 0 /* RequestType.KeysUpload */:
await this.processKeysUploadRequest(request);
break;
case 1 /* RequestType.KeysQuery */:
await this.processKeysQueryRequest(request);
break;
case 2 /* RequestType.KeysClaim */:
await this.processKeysClaimRequest(request);
break;
case 3 /* RequestType.ToDevice */:
await this.processToDeviceRequest(request);
break;
case 5 /* RequestType.RoomMessage */:
throw new Error("Bindings error: Sending room messages is not supported");
case 4 /* RequestType.SignatureUpload */:
throw new Error("Bindings error: Backup feature not possible");
case 6 /* RequestType.KeysBackup */:
throw new Error("Bindings error: Backup feature not possible");
default:
throw new Error("Bindings error: Unrecognized request type: " + request.type);
}
}
}
async addTrackedUsers(userIds) {
await this.lock.acquire(exports.SYNC_LOCK_NAME, async () => {
const uids = userIds.map(u => new matrix_sdk_crypto_nodejs_1.UserId(u));
await this.machine.updateTrackedUsers(uids);
const keysClaim = await this.machine.getMissingSessions(uids);
if (keysClaim) {
await this.processKeysClaimRequest(keysClaim);
}
});
}
async prepareEncrypt(roomId, roomInfo) {
// TODO: Handle pre-shared invite keys too
const members = (await this.client.getJoinedRoomMembers(roomId)).map(u => new matrix_sdk_crypto_nodejs_1.UserId(u));
let historyVis = 1 /* HistoryVisibility.Joined */;
switch (roomInfo.historyVisibility) {
case "world_readable":
historyVis = 3 /* HistoryVisibility.WorldReadable */;
break;
case "invited":
historyVis = 0 /* HistoryVisibility.Invited */;
break;
case "shared":
historyVis = 2 /* HistoryVisibility.Shared */;
break;
case "joined":
default:
// Default and other cases handled by assignment before switch
}
const encEv = new EncryptionEvent_1.EncryptionEvent({
type: "m.room.encryption",
content: roomInfo,
});
const settings = new matrix_sdk_crypto_nodejs_1.EncryptionSettings();
settings.algorithm = roomInfo.algorithm === Crypto_1.EncryptionAlgorithm.MegolmV1AesSha2
? 1 /* RustEncryptionAlgorithm.MegolmV1AesSha2 */
: undefined;
settings.historyVisibility = historyVis;
settings.rotationPeriod = BigInt(encEv.rotationPeriodMs);
settings.rotationPeriodMessages = BigInt(encEv.rotationPeriodMessages);
await this.lock.acquire(exports.SYNC_LOCK_NAME, async () => {
await this.machine.updateTrackedUsers(members); // just in case we missed some
await this.runOnly(1 /* RequestType.KeysQuery */);
const keysClaim = await this.machine.getMissingSessions(members);
if (keysClaim) {
await this.processKeysClaimRequest(keysClaim);
}
});
await this.lock.acquire(roomId, async () => {
const requests = JSON.parse(await this.machine.shareRoomKey(new matrix_sdk_crypto_nodejs_1.RoomId(roomId), members, settings));
for (const req of requests) {
await this.actuallyProcessToDeviceRequest(req.txn_id, req.event_type, req.messages);
}
});
}
async processKeysClaimRequest(request) {
const resp = await this.client.doRequest("POST", "/_matrix/client/v3/keys/claim", null, JSON.parse(request.body));
await this.machine.markRequestAsSent(request.id, request.type, JSON.stringify(resp));
}
async processKeysUploadRequest(request) {
const body = JSON.parse(request.body);
// delete body["one_time_keys"]; // use this to test MSC3983
const resp = await this.client.doRequest("POST", "/_matrix/client/v3/keys/upload", null, body);
await this.machine.markRequestAsSent(request.id, request.type, JSON.stringify(resp));
}
async processKeysQueryRequest(request) {
const resp = await this.client.doRequest("POST", "/_matrix/client/v3/keys/query", null, JSON.parse(request.body));
await this.machine.markRequestAsSent(request.id, request.type, JSON.stringify(resp));
}
async processToDeviceRequest(request) {
const req = JSON.parse(request.body);
await this.actuallyProcessToDeviceRequest(req.txn_id, req.event_type, req.messages);
}
async actuallyProcessToDeviceRequest(id, type, messages) {
const resp = await this.client.sendToDevices(type, messages);
await this.machine.markRequestAsSent(id, 3 /* RequestType.ToDevice */, JSON.stringify(resp));
}
}
exports.RustEngine = RustEngine;
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