[NEW] Support for end to end encryption

.meteor/packages

@@ -190,6 +190,7 @@ steffo:meteor-accounts-saml
 todda00:friendly-slugs
 yasaricli:slugify
 yasinuslu:blaze-meta
+rocketchat:e2e
 
 rocketchat:blockstack
 rocketchat:version-check

.meteor/versions

@@ -146,6 +146,7 @@ rocketchat:custom-oauth@1.0.0
 rocketchat:custom-sounds@1.0.0
 rocketchat:dolphin@0.0.2
 rocketchat:drupal@0.0.1
+rocketchat:e2e@0.0.1
 rocketchat:emoji@1.0.0
 rocketchat:emoji-custom@1.0.0
 rocketchat:emoji-emojione@0.0.1

package.json

@@ -131,6 +131,7 @@
 		"bugsnag": "^2.4.0",
 		"bunyan": "^1.8.12",
 		"busboy": "^0.2.14",
+		"bytebuffer": "5.0.1",
 		"cas": "https://github.com/kcbanner/node-cas/tarball/fcd27dad333223b3b75a048bce27973fb3ca0f62",
 		"chart.js": "^2.7.2",
 		"clipboard": "^2.0.1",

packages/rocketchat-api/server/v1/e2e.js

@@ -0,0 +1,46 @@
+RocketChat.API.v1.addRoute('e2e.fetchKeychain', { authRequired: true }, {
+	get() {
+		const { uid } = this.queryParams;
+
+		let result;
+		Meteor.runAsUser(this.userId, () => result = Meteor.call('fetchKeychain', uid));
+
+		return RocketChat.API.v1.success(result);
+	},
+});
+
+RocketChat.API.v1.addRoute('e2e.fetchMyKeys', { authRequired: true }, {
+	get() {
+		let result;
+		Meteor.runAsUser(this.userId, () => result = Meteor.call('fetchMyKeys'));
+
+		return RocketChat.API.v1.success(result);
+	},
+});
+
+RocketChat.API.v1.addRoute('e2e.addKeyToChain', { authRequired: true }, {
+	post() {
+		const { RSAPubKey, RSAEPrivKey } = this.bodyParams;
+
+		Meteor.runAsUser(this.userId, () => {
+			RocketChat.API.v1.success(Meteor.call('addKeyToChain', {
+				public_key: RSAPubKey,
+				private_key: RSAEPrivKey,
+			}));
+		});
+
+		return RocketChat.API.v1.success();
+	},
+});
+
+RocketChat.API.v1.addRoute('e2e.updateGroupE2EKey', { authRequired: true }, {
+	post() {
+		const { uid, rid, key } = this.bodyParams;
+
+		Meteor.runAsUser(this.userId, () => {
+			RocketChat.API.v1.success(Meteor.call('updateGroupE2EKey', rid, uid, key));
+		});
+
+		return RocketChat.API.v1.success();
+	},
+});

packages/rocketchat-channel-settings/client/views/channelSettings.html

@@ -181,6 +181,24 @@
 			{{/if}}
 		{{/with}}
 
+		{{#with settings.encrypted}}
+			{{#if canView}}
+				<div class="rc-user-info__row">
+					<div class="rc-switch rc-switch--blue">
+						<label class="rc-switch__label">
+							<span class="rc-switch__text">
+								{{_ label}}{{equal default value '*'}}
+							</span>
+							<input type="checkbox" class="rc-switch__input js-input-check" name="encrypted" checked="{{checked}}" disabled="{{./disabled}}">
+							<span class="rc-switch__button">
+								<span class="rc-switch__button-inside"></span>
+							</span>
+						</label>
+					</div>
+				</div>
+			{{/if}}
+		{{/with}}
+
 		{{#with settings.broadcast}}
 			{{#if canView}}
 			<div class="rc-user-info__row">

packages/rocketchat-channel-settings/client/views/channelSettings.js

@@ -624,6 +624,25 @@ Template.channelSettingsEditing.onCreated(function() {
 				);
 			},
 		},
+		encrypted: {
+			type: 'boolean',
+			label: 'Encrypted',
+			isToggle: true,
+			processing: new ReactiveVar(false),
+			canView() {
+				return RocketChat.roomTypes.roomTypes[room.t].allowRoomSettingChange(room, RoomSettingsEnum.E2E);
+			},
+			canEdit() {
+				return RocketChat.authz.hasAllPermission('edit-room', room._id);
+			},
+			save(value) {
+				return call('saveRoomSettings', room._id, 'encrypted', value).then(() => {
+					toastr.success(
+						t('Encrypted_setting_changed_successfully')
+					);
+				});
+			},
+		},
 	};
 	Object.keys(this.settings).forEach((key) => {
 		const setting = this.settings[key];

packages/rocketchat-channel-settings/server/methods/saveRoomSettings.js

@@ -1,4 +1,4 @@
-const fields = ['roomName', 'roomTopic', 'roomAnnouncement', 'roomCustomFields', 'roomDescription', 'roomType', 'readOnly', 'reactWhenReadOnly', 'systemMessages', 'default', 'joinCode', 'tokenpass', 'streamingOptions', 'retentionEnabled', 'retentionMaxAge', 'retentionExcludePinned', 'retentionFilesOnly', 'retentionOverrideGlobal'];
+const fields = ['roomName', 'roomTopic', 'roomAnnouncement', 'roomCustomFields', 'roomDescription', 'roomType', 'readOnly', 'reactWhenReadOnly', 'systemMessages', 'default', 'joinCode', 'tokenpass', 'streamingOptions', 'retentionEnabled', 'retentionMaxAge', 'retentionExcludePinned', 'retentionFilesOnly', 'retentionOverrideGlobal', 'encrypted'];
 Meteor.methods({
 	saveRoomSettings(rid, settings, value) {
 		const userId = Meteor.userId();
@@ -72,6 +72,12 @@ Meteor.methods({
 					action: 'Change_Room_Type',
 				});
 			}
+			if (setting === 'encrypted' && value !== room.encrypted && (room.t !== 'd' && room.t !== 'p')) {
+				throw new Meteor.Error('error-action-not-allowed', 'Only groups or direct channels can enable encryption', {
+					method: 'saveRoomSettings',
+					action: 'Change_Room_Encrypted',
+				});
+			}
 
 			if (setting === 'retentionEnabled' && !RocketChat.authz.hasPermission(userId, 'edit-room-retention-policy', rid) && value !== room.retention.enabled) {
 				throw new Meteor.Error('error-action-not-allowed', 'Editing room retention policy is not allowed', {
@@ -184,6 +190,9 @@ Meteor.methods({
 				case 'retentionOverrideGlobal':
 					RocketChat.models.Rooms.saveRetentionOverrideGlobalById(rid, value);
 					break;
+				case 'encrypted':
+					RocketChat.models.Rooms.saveEncryptedById(rid, value);
+					break;
 			}
 		});
 

packages/rocketchat-e2e/.eslintrc

@@ -0,0 +1,4 @@
+{
+	"extends": ["@rocket.chat/eslint-config"],
+	"root": true
+}

packages/rocketchat-e2e/client/helper.js

@@ -0,0 +1,117 @@
+/* eslint-disable new-cap, no-proto */
+
+import ByteBuffer from 'bytebuffer';
+
+const StaticArrayBufferProto = new ArrayBuffer().__proto__;
+
+export function toString(thing) {
+	if (typeof thing === 'string') {
+		return thing;
+	}
+	return new ByteBuffer.wrap(thing).toString('binary');
+}
+
+export function toArrayBuffer(thing) {
+	if (thing === undefined) {
+		return undefined;
+	}
+	if (thing === Object(thing)) {
+		if (thing.__proto__ === StaticArrayBufferProto) {
+			return thing;
+		}
+	}
+
+	if (typeof thing !== 'string') {
+		throw new Error(`Tried to convert a non-string of type ${ typeof thing } to an array buffer`);
+	}
+	return new ByteBuffer.wrap(thing, 'binary').toArrayBuffer();
+}
+
+export function joinVectorAndEcryptedData(vector, encryptedData) {
+	const cipherText = new Uint8Array(encryptedData);
+	const output = new Uint8Array(vector.length + cipherText.length);
+	output.set(vector, 0);
+	output.set(cipherText, vector.length);
+	return output;
+}
+
+export function splitVectorAndEcryptedData(cipherText) {
+	const vector = cipherText.slice(0, 16);
+	const encryptedData = cipherText.slice(16);
+
+	return [vector, encryptedData];
+}
+
+export async function encryptRSA(key, data) {
+	return await crypto.subtle.encrypt({ name: 'RSA-OAEP' }, key, data);
+}
+
+export async function encryptAES(vector, key, data) {
+	return await crypto.subtle.encrypt({ name: 'AES-CBC', iv: vector }, key, data);
+}
+
+export async function decryptRSA(key, data) {
+	return await crypto.subtle.decrypt({ name: 'RSA-OAEP' }, key, data);
+}
+
+export async function decryptAES(vector, key, data) {
+	return await crypto.subtle.decrypt({ name: 'AES-CBC', iv: vector }, key, data);
+}
+
+export async function generateAESKey() {
+	return await crypto.subtle.generateKey({ name: 'AES-CBC', length: 128 }, true, ['encrypt', 'decrypt']);
+}
+
+export async function generateRSAKey() {
+	return await crypto.subtle.generateKey({ name: 'RSA-OAEP', modulusLength: 2048, publicExponent: new Uint8Array([0x01, 0x00, 0x01]), hash: { name: 'SHA-256' } }, true, ['encrypt', 'decrypt']);
+}
+
+export async function exportJWKKey(key) {
+	return await crypto.subtle.exportKey('jwk', key);
+}
+
+export async function importRSAKey(keyData, keyUsages = ['encrypt', 'decrypt']) {
+	return await crypto.subtle.importKey('jwk', keyData, { name: 'RSA-OAEP', modulusLength: 2048, publicExponent: new Uint8Array([0x01, 0x00, 0x01]), hash: { name: 'SHA-256' } }, true, keyUsages);
+}
+
+export async function importAESKey(keyData, keyUsages = ['encrypt', 'decrypt']) {
+	return await crypto.subtle.importKey('jwk', keyData, { name: 'AES-CBC' }, true, keyUsages);
+}
+
+export async function importRawKey(keyData, keyUsages = ['deriveKey']) {
+	return await crypto.subtle.importKey('raw', keyData, { name: 'PBKDF2' }, false, keyUsages);
+}
+
+export async function deriveKey(salt, baseKey, keyUsages = ['encrypt', 'decrypt']) {
+	const iterations = 1000;
+	const hash = 'SHA-256';
+
+	return await crypto.subtle.deriveKey({ name: 'PBKDF2', salt, iterations, hash }, baseKey, { name: 'AES-CBC', length: 256 }, true, keyUsages);
+}
+
+export async function readFileAsArrayBuffer(file) {
+	return new Promise((resolve, reject) => {
+		const reader = new FileReader();
+		reader.onload = function(evt) {
+			resolve(evt.target.result);
+		};
+		reader.onerror = function(evt) {
+			reject(evt);
+		};
+		reader.readAsArrayBuffer(file);
+	});
+}
+
+export class Deferred {
+	constructor() {
+		const p = new Promise((resolve, reject) => {
+			this.resolve = resolve;
+			this.reject = reject;
+		});
+
+		p.resolve = this.resolve;
+		p.reject = this.reject;
+
+		return p;
+	}
+}