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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.eventMapperFor = eventMapperFor;
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _event = require("./models/event");
var _event2 = require("./@types/event");
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { (0, _defineProperty2.default)(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
function eventMapperFor(client, options) {
let preventReEmit = Boolean(options.preventReEmit);
const decrypt = options.decrypt !== false;
function mapper(plainOldJsObject) {
if (options.toDevice) {
delete plainOldJsObject.room_id;
}
const room = client.getRoom(plainOldJsObject.room_id);
let event;
// If the event is already known to the room, let's re-use the model rather than duplicating.
// We avoid doing this to state events as they may be forward or backwards looking which tweaks behaviour.
if (room && plainOldJsObject.state_key === undefined) {
event = room.findEventById(plainOldJsObject.event_id);
}
if (!event || event.status) {
event = new _event.MatrixEvent(plainOldJsObject);
} else {
// merge the latest unsigned data from the server
event.setUnsigned(_objectSpread(_objectSpread({}, event.getUnsigned()), plainOldJsObject.unsigned));
// prevent doubling up re-emitters
preventReEmit = true;
}
// if there is a complete edit bundled alongside the event, perform the replacement.
// (prior to MSC3925, events were automatically replaced on the server-side. MSC3925 proposes that that doesn't
// happen automatically but the server does provide us with the whole content of the edit event.)
const bundledEdit = event.getServerAggregatedRelation(_event2.RelationType.Replace);
if (bundledEdit !== null && bundledEdit !== void 0 && bundledEdit.content) {
const replacement = mapper(bundledEdit);
// XXX: it's worth noting that the spec says we should only respect encrypted edits if, once decrypted, the
// replacement has a `m.new_content` property. The problem is that we haven't yet decrypted the replacement
// (it should be happening in the background), so we can't enforce this. Possibly we should for decryption
// to complete, but that sounds a bit racy. For now, we just assume it's ok.
event.makeReplaced(replacement);
}
const thread = room === null || room === void 0 ? void 0 : room.findThreadForEvent(event);
if (thread) {
event.setThread(thread);
}
// TODO: once we get rid of the old libolm-backed crypto, we can restrict this to room events (rather than
// to-device events), because the rust implementation decrypts to-device messages at a higher level.
// Generally we probably want to use a different eventMapper implementation for to-device events because
if (event.isEncrypted()) {
if (!preventReEmit) {
client.reEmitter.reEmit(event, [_event.MatrixEventEvent.Decrypted]);
}
if (decrypt) {
client.decryptEventIfNeeded(event);
}
}
if (!preventReEmit) {
client.reEmitter.reEmit(event, [_event.MatrixEventEvent.Replaced, _event.MatrixEventEvent.VisibilityChange]);
room === null || room === void 0 ? void 0 : room.reEmitter.reEmit(event, [_event.MatrixEventEvent.BeforeRedaction]);
}
return event;
}
return mapper;
}
//# sourceMappingURL=event-mapper.js.map
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