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David Baker
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src/SlashCommands.js
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312
src/SlashCommands.js
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/*
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Copyright 2015 OpenMarket Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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var MatrixClientPeg = require("./MatrixClientPeg");
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var dis = require("./dispatcher");
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var encryption = require("./encryption");
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var reject = function(msg) {
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return {
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error: msg
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};
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};
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var success = function(promise) {
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return {
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promise: promise
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};
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};
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var commands = {
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// Change your nickname
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nick: function(room_id, args) {
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if (args) {
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return success(
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MatrixClientPeg.get().setDisplayName(args)
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);
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}
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return reject("Usage: /nick <display_name>");
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},
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encrypt: function(room_id, args) {
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if (args == "on") {
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var client = MatrixClientPeg.get();
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var members = client.getRoom(room_id).currentState.members;
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var user_ids = Object.keys(members);
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return success(
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encryption.enableEncryption(client, room_id, user_ids)
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);
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}
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if (args == "off") {
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var client = MatrixClientPeg.get();
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return success(
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encryption.disableEncryption(client, room_id)
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);
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}
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return reject("Usage: encrypt <on/off>");
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},
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// Change the room topic
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topic: function(room_id, args) {
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if (args) {
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return success(
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MatrixClientPeg.get().setRoomTopic(room_id, args)
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);
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}
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return reject("Usage: /topic <topic>");
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},
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// Invite a user
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invite: function(room_id, args) {
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if (args) {
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var matches = args.match(/^(\S+)$/);
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if (matches) {
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return success(
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MatrixClientPeg.get().invite(room_id, matches[1])
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);
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}
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}
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return reject("Usage: /invite <userId>");
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},
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// Join a room
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join: function(room_id, args) {
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if (args) {
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var matches = args.match(/^(\S+)$/);
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if (matches) {
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var room_alias = matches[1];
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if (room_alias[0] !== '#') {
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return reject("Usage: /join #alias:domain");
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}
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if (!room_alias.match(/:/)) {
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var domain = MatrixClientPeg.get().credentials.userId.replace(/^.*:/, '');
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room_alias += ':' + domain;
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}
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// Try to find a room with this alias
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var rooms = MatrixClientPeg.get().getRooms();
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var roomId;
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for (var i = 0; i < rooms.length; i++) {
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var aliasEvents = rooms[i].currentState.getStateEvents(
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"m.room.aliases"
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);
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for (var j = 0; j < aliasEvents.length; j++) {
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var aliases = aliasEvents[j].getContent().aliases || [];
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for (var k = 0; k < aliases.length; k++) {
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if (aliases[k] === room_alias) {
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roomId = rooms[i].roomId;
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break;
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}
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}
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if (roomId) { break; }
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}
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if (roomId) { break; }
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}
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if (roomId) { // we've already joined this room, view it.
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dis.dispatch({
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action: 'view_room',
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room_id: roomId
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});
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return success();
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}
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else {
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// attempt to join this alias.
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return success(
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MatrixClientPeg.get().joinRoom(room_alias).then(
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function(room) {
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dis.dispatch({
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action: 'view_room',
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room_id: room.roomId
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});
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})
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);
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}
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}
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}
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return reject("Usage: /join <room_alias>");
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},
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part: function(room_id, args) {
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var targetRoomId;
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if (args) {
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var matches = args.match(/^(\S+)$/);
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if (matches) {
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var room_alias = matches[1];
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if (room_alias[0] !== '#') {
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return reject("Usage: /part [#alias:domain]");
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}
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if (!room_alias.match(/:/)) {
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var domain = MatrixClientPeg.get().credentials.userId.replace(/^.*:/, '');
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room_alias += ':' + domain;
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}
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// Try to find a room with this alias
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var rooms = MatrixClientPeg.get().getRooms();
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for (var i = 0; i < rooms.length; i++) {
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var aliasEvents = rooms[i].currentState.getStateEvents(
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"m.room.aliases"
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);
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for (var j = 0; j < aliasEvents.length; j++) {
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var aliases = aliasEvents[j].getContent().aliases || [];
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for (var k = 0; k < aliases.length; k++) {
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if (aliases[k] === room_alias) {
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targetRoomId = rooms[i].roomId;
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break;
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}
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}
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if (targetRoomId) { break; }
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}
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if (targetRoomId) { break; }
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}
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}
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if (!targetRoomId) {
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return reject("Unrecognised room alias: " + room_alias);
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}
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}
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if (!targetRoomId) targetRoomId = room_id;
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return success(
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MatrixClientPeg.get().leave(targetRoomId).then(
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function() {
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dis.dispatch({action: 'view_next_room'});
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})
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);
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},
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// Kick a user from the room with an optional reason
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kick: function(room_id, args) {
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if (args) {
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var matches = args.match(/^(\S+?)( +(.*))?$/);
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if (matches) {
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return success(
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MatrixClientPeg.get().kick(room_id, matches[1], matches[3])
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);
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}
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}
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return reject("Usage: /kick <userId> [<reason>]");
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},
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// Ban a user from the room with an optional reason
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ban: function(room_id, args) {
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if (args) {
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var matches = args.match(/^(\S+?)( +(.*))?$/);
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if (matches) {
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return success(
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MatrixClientPeg.get().ban(room_id, matches[1], matches[3])
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);
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}
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}
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return reject("Usage: /ban <userId> [<reason>]");
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},
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// Unban a user from the room
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unban: function(room_id, args) {
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if (args) {
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var matches = args.match(/^(\S+)$/);
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if (matches) {
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// Reset the user membership to "leave" to unban him
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return success(
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MatrixClientPeg.get().unban(room_id, matches[1])
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);
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}
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}
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return reject("Usage: /unban <userId>");
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},
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// Define the power level of a user
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op: function(room_id, args) {
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if (args) {
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var matches = args.match(/^(\S+?)( +(\d+))?$/);
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var powerLevel = 50; // default power level for op
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if (matches) {
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var user_id = matches[1];
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if (matches.length === 4 && undefined !== matches[3]) {
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powerLevel = parseInt(matches[3]);
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}
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if (powerLevel !== NaN) {
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var room = MatrixClientPeg.get().getRoom(room_id);
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if (!room) {
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return reject("Bad room ID: " + room_id);
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}
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var powerLevelEvent = room.currentState.getStateEvents(
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"m.room.power_levels", ""
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);
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return success(
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MatrixClientPeg.get().setPowerLevel(
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room_id, user_id, powerLevel, powerLevelEvent
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)
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);
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}
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}
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}
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return reject("Usage: /op <userId> [<power level>]");
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},
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// Reset the power level of a user
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deop: function(room_id, args) {
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if (args) {
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var matches = args.match(/^(\S+)$/);
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if (matches) {
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var room = MatrixClientPeg.get().getRoom(room_id);
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if (!room) {
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return reject("Bad room ID: " + room_id);
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}
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var powerLevelEvent = room.currentState.getStateEvents(
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"m.room.power_levels", ""
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);
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return success(
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MatrixClientPeg.get().setPowerLevel(
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room_id, args, undefined, powerLevelEvent
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)
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);
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}
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}
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return reject("Usage: /deop <userId>");
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}
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};
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// helpful aliases
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commands.j = commands.join;
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module.exports = {
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/**
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* Process the given text for /commands and perform them.
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* @param {string} roomId The room in which the command was performed.
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* @param {string} input The raw text input by the user.
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* @return {Object|null} An object with the property 'error' if there was an error
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* processing the command, or 'promise' if a request was sent out.
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* Returns null if the input didn't match a command.
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*/
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processInput: function(roomId, input) {
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// trim any trailing whitespace, as it can confuse the parser for
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// IRC-style commands
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input = input.replace(/\s+$/, "");
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if (input[0] === "/" && input[1] !== "/") {
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var bits = input.match(/^(\S+?)( +(.*))?$/);
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var cmd = bits[1].substring(1).toLowerCase();
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var args = bits[3];
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if (cmd === "me") return null;
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if (commands[cmd]) {
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return commands[cmd](roomId, args);
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}
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else {
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return reject("Unrecognised command: " + input);
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}
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}
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return null; // not a command
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}
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};
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38
src/encryption.js
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38
src/encryption.js
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@ -0,0 +1,38 @@
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/*
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Copyright 2015 OpenMarket Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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function enableEncyption(client, roomId, members) {
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members = members.slice(0);
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members.push(client.credentials.userId);
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// TODO: Check the keys actually match what keys the user has.
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// TODO: Don't redownload keys each time.
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return client.downloadKeys(members, "forceDownload").then(function(res) {
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return client.setRoomEncryption(roomId, {
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algorithm: "m.olm.v1.curve25519-aes-sha2",
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members: members,
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});
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})
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}
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function disableEncryption(client, roomId) {
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return client.disableRoomEncryption(roomId);
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}
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module.exports = {
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enableEncryption: enableEncyption,
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disableEncryption: disableEncryption,
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}
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