75 lines
2.7 KiB
JavaScript
75 lines
2.7 KiB
JavaScript
var svgEditorExtension_xdomain_messaging = (function () {
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'use strict';
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var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
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return typeof obj;
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} : function (obj) {
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return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
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};
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var toConsumableArray = function (arr) {
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if (Array.isArray(arr)) {
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for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];
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return arr2;
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} else {
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return Array.from(arr);
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}
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};
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/**
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* Should not be needed for same domain control (just call via child frame),
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* but an API common for cross-domain and same domain use can be found
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* in embedapi.js with a demo at embedapi.html
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*/
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var extXdomainMessaging = {
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name: 'xdomain-messaging',
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init: function init() {
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var svgEditor = this;
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var svgCanvas = svgEditor.canvas;
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try {
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window.addEventListener('message', function (e) {
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// We accept and post strings for the sake of IE9 support
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if (!e.data || !['string', 'object'].includes(_typeof(e.data)) || e.data.charAt() === '|') {
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return;
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}
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var data = _typeof(e.data) === 'object' ? e.data : JSON.parse(e.data);
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if (!data || (typeof data === 'undefined' ? 'undefined' : _typeof(data)) !== 'object' || data.namespace !== 'svgCanvas') {
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return;
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}
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// The default is not to allow any origins, including even the same domain or
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// if run on a `file:///` URL. See `svgedit-config-es.js` for an example of how
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// to configure
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var allowedOrigins = svgEditor.curConfig.allowedOrigins;
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if (!allowedOrigins.includes('*') && !allowedOrigins.includes(e.origin)) {
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console.log('Origin ' + e.origin + ' not whitelisted for posting to ' + window.origin);
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return;
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}
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var cbid = data.id;
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var name = data.name,
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args = data.args;
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var message = {
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namespace: 'svg-edit',
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id: cbid
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};
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try {
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// Now that we know the origin is trusted, we perform otherwise
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// unsafe arbitrary canvas method execution
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message.result = svgCanvas[name].apply(svgCanvas, toConsumableArray(args)); // lgtm [js/remote-property-injection]
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} catch (err) {
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message.error = err.message;
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}
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e.source.postMessage(JSON.stringify(message), '*');
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}, false);
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} catch (err) {
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console.log('Error with xdomain message listener: ' + err);
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}
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}
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};
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return extXdomainMessaging;
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}());
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