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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.WidgetEventCapability = exports.EventKind = exports.EventDirection = void 0;
function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }
function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return _typeof(key) === "symbol" ? key : String(key); }
function _toPrimitive(input, hint) { if (_typeof(input) !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (_typeof(res) !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
/*
* Copyright 2020 The Matrix.org Foundation C.I.C.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var EventKind = /*#__PURE__*/function (EventKind) {
EventKind["Event"] = "event";
EventKind["State"] = "state_event";
EventKind["ToDevice"] = "to_device";
return EventKind;
}({});
exports.EventKind = EventKind;
var EventDirection = /*#__PURE__*/function (EventDirection) {
EventDirection["Send"] = "send";
EventDirection["Receive"] = "receive";
return EventDirection;
}({});
exports.EventDirection = EventDirection;
var WidgetEventCapability = /*#__PURE__*/function () {
function WidgetEventCapability(direction, eventType, kind, keyStr, raw) {
_classCallCheck(this, WidgetEventCapability);
this.direction = direction;
this.eventType = eventType;
this.kind = kind;
this.keyStr = keyStr;
this.raw = raw;
}
_createClass(WidgetEventCapability, [{
key: "matchesAsStateEvent",
value: function matchesAsStateEvent(direction, eventType, stateKey) {
if (this.kind !== EventKind.State) return false; // not a state event
if (this.direction !== direction) return false; // direction mismatch
if (this.eventType !== eventType) return false; // event type mismatch
if (this.keyStr === null) return true; // all state keys are allowed
if (this.keyStr === stateKey) return true; // this state key is allowed
// Default not allowed
return false;
}
}, {
key: "matchesAsToDeviceEvent",
value: function matchesAsToDeviceEvent(direction, eventType) {
if (this.kind !== EventKind.ToDevice) return false; // not a to-device event
if (this.direction !== direction) return false; // direction mismatch
if (this.eventType !== eventType) return false; // event type mismatch
// Checks passed, the event is allowed
return true;
}
}, {
key: "matchesAsRoomEvent",
value: function matchesAsRoomEvent(direction, eventType) {
var msgtype = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
if (this.kind !== EventKind.Event) return false; // not a room event
if (this.direction !== direction) return false; // direction mismatch
if (this.eventType !== eventType) return false; // event type mismatch
if (this.eventType === "m.room.message") {
if (this.keyStr === null) return true; // all message types are allowed
if (this.keyStr === msgtype) return true; // this message type is allowed
} else {
return true; // already passed the check for if the event is allowed
}
// Default not allowed
return false;
}
}], [{
key: "forStateEvent",
value: function forStateEvent(direction, eventType, stateKey) {
// TODO: Enable support for m.* namespace once the MSC lands.
// https://github.com/matrix-org/matrix-widget-api/issues/22
eventType = eventType.replace(/#/g, '\\#');
stateKey = stateKey !== null && stateKey !== undefined ? "#".concat(stateKey) : '';
var str = "org.matrix.msc2762.".concat(direction, ".state_event:").concat(eventType).concat(stateKey);
// cheat by sending it through the processor
return WidgetEventCapability.findEventCapabilities([str])[0];
}
}, {
key: "forToDeviceEvent",
value: function forToDeviceEvent(direction, eventType) {
// TODO: Enable support for m.* namespace once the MSC lands.
// https://github.com/matrix-org/matrix-widget-api/issues/56
var str = "org.matrix.msc3819.".concat(direction, ".to_device:").concat(eventType);
// cheat by sending it through the processor
return WidgetEventCapability.findEventCapabilities([str])[0];
}
}, {
key: "forRoomEvent",
value: function forRoomEvent(direction, eventType) {
// TODO: Enable support for m.* namespace once the MSC lands.
// https://github.com/matrix-org/matrix-widget-api/issues/22
var str = "org.matrix.msc2762.".concat(direction, ".event:").concat(eventType);
// cheat by sending it through the processor
return WidgetEventCapability.findEventCapabilities([str])[0];
}
}, {
key: "forRoomMessageEvent",
value: function forRoomMessageEvent(direction, msgtype) {
// TODO: Enable support for m.* namespace once the MSC lands.
// https://github.com/matrix-org/matrix-widget-api/issues/22
msgtype = msgtype === null || msgtype === undefined ? '' : msgtype;
var str = "org.matrix.msc2762.".concat(direction, ".event:m.room.message#").concat(msgtype);
// cheat by sending it through the processor
return WidgetEventCapability.findEventCapabilities([str])[0];
}
/**
* Parses a capabilities request to find all the event capability requests.
* @param {Iterable<Capability>} capabilities The capabilities requested/to parse.
* @returns {WidgetEventCapability[]} An array of event capability requests. May be empty, but never null.
*/
}, {
key: "findEventCapabilities",
value: function findEventCapabilities(capabilities) {
var parsed = [];
var _iterator = _createForOfIteratorHelper(capabilities),
_step;
try {
for (_iterator.s(); !(_step = _iterator.n()).done;) {
var cap = _step.value;
var _direction = null;
var eventSegment = void 0;
var _kind = null;
// TODO: Enable support for m.* namespace once the MSCs land.
// https://github.com/matrix-org/matrix-widget-api/issues/22
// https://github.com/matrix-org/matrix-widget-api/issues/56
if (cap.startsWith("org.matrix.msc2762.send.event:")) {
_direction = EventDirection.Send;
_kind = EventKind.Event;
eventSegment = cap.substring("org.matrix.msc2762.send.event:".length);
} else if (cap.startsWith("org.matrix.msc2762.send.state_event:")) {
_direction = EventDirection.Send;
_kind = EventKind.State;
eventSegment = cap.substring("org.matrix.msc2762.send.state_event:".length);
} else if (cap.startsWith("org.matrix.msc3819.send.to_device:")) {
_direction = EventDirection.Send;
_kind = EventKind.ToDevice;
eventSegment = cap.substring("org.matrix.msc3819.send.to_device:".length);
} else if (cap.startsWith("org.matrix.msc2762.receive.event:")) {
_direction = EventDirection.Receive;
_kind = EventKind.Event;
eventSegment = cap.substring("org.matrix.msc2762.receive.event:".length);
} else if (cap.startsWith("org.matrix.msc2762.receive.state_event:")) {
_direction = EventDirection.Receive;
_kind = EventKind.State;
eventSegment = cap.substring("org.matrix.msc2762.receive.state_event:".length);
} else if (cap.startsWith("org.matrix.msc3819.receive.to_device:")) {
_direction = EventDirection.Receive;
_kind = EventKind.ToDevice;
eventSegment = cap.substring("org.matrix.msc3819.receive.to_device:".length);
}
if (_direction === null || _kind === null || eventSegment === undefined) continue;
// The capability uses `#` as a separator between event type and state key/msgtype,
// so we split on that. However, a # is also valid in either one of those so we
// join accordingly.
// Eg: `m.room.message##m.text` is "m.room.message" event with msgtype "#m.text".
var expectingKeyStr = eventSegment.startsWith("m.room.message#") || _kind === EventKind.State;
var _keyStr = null;
if (eventSegment.includes('#') && expectingKeyStr) {
// Dev note: regex is difficult to write, so instead the rules are manually written
// out. This is probably just as understandable as a boring regex though, so win-win?
// Test cases:
// str eventSegment keyStr
// -------------------------------------------------------------
// m.room.message# m.room.message <empty string>
// m.room.message#test m.room.message test
// m.room.message\# m.room.message# test
// m.room.message##test m.room.message #test
// m.room.message\##test m.room.message# test
// m.room.message\\##test m.room.message\# test
// m.room.message\\###test m.room.message\# #test
// First step: explode the string
var parts = eventSegment.split('#');
// To form the eventSegment, we'll keep finding parts of the exploded string until
// there's one that doesn't end with the escape character (\). We'll then join those
// segments together with the exploding character. We have to remember to consume the
// escape character as well.
var idx = parts.findIndex(function (p) {
return !p.endsWith("\\");
});
eventSegment = parts.slice(0, idx + 1).map(function (p) {
return p.endsWith('\\') ? p.substring(0, p.length - 1) : p;
}).join('#');
// The keyStr is whatever is left over.
_keyStr = parts.slice(idx + 1).join('#');
}
parsed.push(new WidgetEventCapability(_direction, eventSegment, _kind, _keyStr, cap));
}
} catch (err) {
_iterator.e(err);
} finally {
_iterator.f();
}
return parsed;
}
}]);
return WidgetEventCapability;
}();
exports.WidgetEventCapability = WidgetEventCapability;
//# sourceMappingURL=WidgetEventCapability.js.map
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