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//
// Copyright (C) Microsoft. All rights reserved.
//
/// <disable>JS2085.EnableStrictMode</disable>
"use strict";
var CloudExperienceHost;
(function (CloudExperienceHost) {
var Channel;
(function (Channel) {
Channel.MessageType = {
invoke: 'invoke',
event: 'event',
callback: 'callback',
};
class Message {
constructor(t) {
this.type = t;
this.value = new Object;
}
}
Channel.Message = Message;
class EventMsg extends Message {
constructor() {
super(Channel.MessageType.event);
}
}
Channel.EventMsg = EventMsg;
class InvokeMsg extends Message {
constructor() {
super(Channel.MessageType.invoke);
}
}
Channel.InvokeMsg = InvokeMsg;
class CallbackMsg extends Message {
constructor() {
super(Channel.MessageType.callback);
}
}
Channel.CallbackMsg = CallbackMsg;
function createInvokeMsg(funcName, args, context) {
var msg = new InvokeMsg();
msg.value.name = funcName;
msg.value.args = args;
msg.value.context = context;
return msg;
}
Channel.createInvokeMsg = createInvokeMsg;
function createEventMsg(eventName, data) {
var msg = new EventMsg();
msg.value.name = eventName;
if (data) {
msg.value.data = data;
}
return msg;
}
Channel.createEventMsg = createEventMsg;
function createCallbackMsg(context, funcName, result, iserror) {
var msg = new CallbackMsg();
msg.value.context = context;
msg.value.result = (funcName === 'WinJS.xhr') ? { 'response': result.response, 'status': result.status } : result;
msg.value.iserror = iserror;
return msg;
}
Channel.createCallbackMsg = createCallbackMsg;
function stringify(msg) {
return JSON.stringify(msg);
}
Channel.stringify = stringify;
function parse(msg) {
var m = JSON.parse(msg);
return m;
}
Channel.parse = parse;
})(Channel || (Channel = {}));
class ContractHandler {
constructor(rules) {
this.rules = rules;
}
invokeFromString(callerUri, method, args) {
try {
this.checkIfPermissionAllowed(callerUri, method);
return WinJS.Promise.as(this._executeFunctionByName(method, args));
}
catch (e) {
return new WinJS.Promise(function (completeDispatch, errorDispatch /*, progressDispatch */) {
errorDispatch(e);
});
}
}
//
// The Rules object is hash table of method (including namespace) and permitted URLs, OR all APIs under namespace (must mark with '*') and permitted URLs.
// It will first search for method, to check if callerUri exist in permitted list otherwise will check the namespaces until grant the permission or there is no namespace left in the method.
// Sample:
// Rules object can be like:
// CloudExperienceHost.MyNamespace.*: [ https://mysite.com/Apps/App1]
// CloudExperienceHost.MyNamespace.M2: [ https://mysite.com/Apps/App2]
// CloudExperienceHost.Telemetry.*: [*]
//
// App1 can call any API on CloudExperienceHost.MyNamespace
// but App2 can just call CloudExperienceHost.MyNamespace.M2
// both App1 and App2 can call Telemetry API
//
checkIfPermissionAllowed(callerUri, method) {
var trimmedCallerUri = this._trimUri(callerUri);
var isAllowed = false;
var namespaces = method.split(".");
for (var fn = ""; !isAllowed && namespaces.length > 0; namespaces.pop()) {
var ns = namespaces.join('.') + fn;
if (this.rules.hasOwnProperty(ns)) {
isAllowed = this._isAllowed(trimmedCallerUri, this.rules[ns]);
}
fn = ".*";
}
if (isAllowed === false) {
CloudExperienceHost.Telemetry.WebAppTelemetry.getInstance().logEvent("NotAuthorizedApiAccess", JSON.stringify({
'callerUri': callerUri,
'trimmedCallerUri': trimmedCallerUri,
'method': method,
'isAllowed': isAllowed
}));
throw new Error("Application not authorized to access the API");
}
}
_isAllowed(callerUri, allowedURIs) {
var isAllowed = false;
allowedURIs.forEach(function (uri) {
if (uri === "*" || callerUri.toLowerCase() === uri.toLowerCase()) {
isAllowed = true;
}
else if (uri.lastIndexOf('*') === (uri.length - 1)) {
if (callerUri.toLowerCase().indexOf(uri.substr(0, uri.length - 1).toLowerCase(), 0) === 0) {
isAllowed = true;
}
}
});
return isAllowed;
}
_trimUri(callerUri) {
return callerUri.replace(/\/[^\/]+$/, "/"); // Remove the file name and parameters
}
_executeFunctionByName(functionName, args) {
/// <summary>Execute the functionName</summary>
/// <param>functionName: name of function including namespace in string format.
/// like "CloudExperienceHost.Contracts.Test.f1" </param >
/// <param>args: an array of objects that holds function parameters</param>
var context = window;
var namespaces = functionName.split(".");
var func = namespaces.pop();
for (var i = 0; i < namespaces.length; i++) {
context = context[namespaces[i]];
}
return context[func].apply(context, args);
}
}
CloudExperienceHost.ContractHandler = ContractHandler;
class CallbackContext {
constructor(completeDispatch, errorDispatch) {
this._completeDispatch = completeDispatch;
this._errorDispatch = errorDispatch;
}
complete(result) {
this._completeDispatch(result);
}
error(e) {
this._errorDispatch(e);
}
}
class Bridge {
constructor(target, contractHandler) {
this._target = null;
this._connectedToTarget = false;
this._contractHandler = null;
this._listeners = null;
this._callbackContext = null;
this._scriptNotifyHandler = this._dispatchMessageFromScriptNotify.bind(this);
this._maxPostDeadlockRetryCount = 5;
this._listeners = new Object();
this._callbackContext = new Object();
if (target) {
this._target = target;
}
if (contractHandler) {
this._contractHandler = contractHandler;
}
this._initializeTarget();
}
_initializeTarget() {
if (this._target) {
this.connectToWebView();
}
else {
window["CloudExperienceHost.Bridge.dispatchMessage"] = function (e) {
this._dispatchMessage(e);
}.bind(this);
window.addEventListener("error", this._onWebViewError.bind(this));
}
}
_onWebViewError(e) {
try {
let eventData = {
sourceUrl: window.location.href,
detail: {
lineno: e.lineno,
colno: e.colno,
filename: e.filename,
message: e.message,
error: e.error,
number: e.number,
},
};
this.fireEvent("CloudExperienceHost.unhandledException", eventData);
}
catch (ex) {
}
}
_windowExternalNotifyInternal(msg, retryCount) {
// http://osgvsowi/10958387 To avoid hitting a known edgehtml deadlock and having window.external.notify calls dropped
// (the RS2 workaround for the deadlock in edgehtml), the Bridge component should never call window.external.notify synchronously.
// In case we still hit the deadlock, we retry a set number of times and then bail out
setImmediate(() => {
try {
window.external.notify(msg);
// We log the count of retries to understand the distribution and change _maxPostDeadlockRetryCount in future if required
if (retryCount > 0) {
require(["legacy/telemetry"], (telemetry) => {
telemetry.AppTelemetry.getInstance().logCriticalEvent2("WebViewPossibleDeadlockAverted", JSON.stringify({
'retryCount': retryCount
}));
});
}
}
catch (e) {
if ((e.number == -2147023765 /* error: ERROR_POSSIBLE_DEADLOCK 0x8007046B */) && (retryCount < this._maxPostDeadlockRetryCount)) {
retryCount++;
this._windowExternalNotifyInternal(msg, retryCount);
}
else {
this._onWebViewError(e);
}
}
});
}
_postMessage(msg) {
if (this._target && this._target["invokeScriptAsync"]) {
this._target["invokeScriptAsync"]("CloudExperienceHost.Bridge.dispatchMessage", msg).start();
}
else {
this._windowExternalNotifyInternal(msg, 0);
}
}
_invokeLocal(m) {
this._contractHandler.invokeFromString(this._target.src, m.value.name, m.value.args).done(function (result) {
if (m.value.context) {
this._callback(m, result, false);
}
}.bind(this), function (e) {
if (m.value.context) {
this._callback(m, e, true);
}
}.bind(this));
}
_receivedEvent(e) {
if (this._contractHandler && this._contractHandler.rules && this._contractHandler.rules.hasOwnProperty(e.value.name)) {
this._contractHandler.checkIfPermissionAllowed(this._target.src, e.value.name);
}
var listeners = this._listeners[e.value.name];
if (listeners) {
listeners.map(function (listener) {
listener.call(this, e.value.data);
}.bind(this));
}
}
_receivedResult(m) {
var callback = this._callbackContext[m.value.context];
if (callback) {
if (m.value.iserror) {
callback.error(m.value.result);
}
else {
callback.complete(m.value.result);
}
//Cleaning
this._callbackContext[m.value.context] = null;
delete this._callbackContext[m.value.context];
}
}
_dispatchMessageFromScriptNotify(notification) {
this._dispatchMessage(notification.value);
}
_dispatchMessage(message) {
var msg = Channel.parse(message);
if (msg.type == Channel.MessageType.invoke) {
this._invokeLocal(msg);
}
else if (msg.type == Channel.MessageType.event) {
this._receivedEvent(msg);
}
else if (msg.type == Channel.MessageType.callback) {
this._receivedResult(msg);
}
}
_callback(m, result, iserror) {
if (iserror && !!result && (typeof result.number === 'number')) {
Object.defineProperty(result, 'number', { enumerable: true });
}
var msg = Channel.createCallbackMsg(m.value.context, m.value.name, result, iserror);
this._postMessage(Channel.stringify(msg));
}
_permissionRequestedHandler(e) {
if ((e.permissionRequest.type == "media") && CloudExperienceHostAPI.UtilStaticsCore.isWebcamPermissionAllowed(e.permissionRequest.uri)) {
e.permissionRequest.allow();
}
else {
e.permissionRequest.deny();
}
}
invokeCallback(funcName, context, result, iserror) {
return new WinJS.Promise(function (completeDispatch, errorDispatch /*, progressDispatch */) {
let msg = Channel.createInvokeMsg(funcName, null, context);
this._callback(msg, result, iserror);
}.bind(this));
}
invoke(funcName, arg1, arg2, arg3, arg4) {
var args = Array.prototype.slice.call(arguments).splice(1);
return new WinJS.Promise(function (completeDispatch, errorDispatch /*, progressDispatch */) {
var uniqueid = Math.random().toString(16).slice(2); // The random number generator is seeded automatically when JavaScript is first loaded.
var context = funcName + '_' + uniqueid; // Create unique index 'funcName_12a47668b64f34'
this._callbackContext[context] = new CallbackContext(completeDispatch, errorDispatch);
var msg = Channel.createInvokeMsg(funcName, args, context);
this._postMessage(Channel.stringify(msg));
}.bind(this));
}
fireEvent(eventName, data) {
var msg = Channel.createEventMsg(eventName, data);
this._postMessage(Channel.stringify(msg));
}
addEventListener(eventName, listener) {
if (!this._listeners.hasOwnProperty(eventName)) {
this._listeners[eventName] = new Array();
}
if ((eventName === "CloudExperienceHost.backButtonClicked") && (this._listeners[eventName].length > 0)) {
// MSA app adds a new event listener for every new panel, this causes multiple callbacks executed
// when back button is clicked on. This is a scoped fix to ensure their pages are not broken.
this._listeners[eventName][0] = listener;
}
else {
this._listeners[eventName].push(listener);
}
}
setContractHandler(contractHandler) {
this._contractHandler = contractHandler;
}
disconnectFromWebView() {
if (this._connectedToTarget) {
this._target.removeEventListener("MSWebViewScriptNotify", this._scriptNotifyHandler);
this._target.removeEventListener("MSWebViewPermissionRequested", this._permissionRequestedHandler);
this._connectedToTarget = false;
}
}
connectToWebView() {
if (!this._connectedToTarget) {
this._target.addEventListener("MSWebViewScriptNotify", this._scriptNotifyHandler);
this._target.addEventListener("MSWebViewPermissionRequested", this._permissionRequestedHandler);
this._connectedToTarget = true;
}
}
}
CloudExperienceHost.Bridge = Bridge;
})(CloudExperienceHost || (CloudExperienceHost = {}));
// Expose bridge to be loaded by requirejs as a singleton object
if ((typeof define === "function") && define.amd) {
define(function () {
return new CloudExperienceHost.Bridge();
});
}
//# sourceMappingURL=bridge.js.map