forked from zhurui/management
102 lines
2.8 KiB
JavaScript
102 lines
2.8 KiB
JavaScript
'use strict';
|
|
|
|
var urlUtils = require('./utils/url')
|
|
, eventUtils = require('./utils/event')
|
|
, FacadeJS = require('./facade')
|
|
, InfoIframeReceiver = require('./info-iframe-receiver')
|
|
, iframeUtils = require('./utils/iframe')
|
|
, loc = require('./location')
|
|
;
|
|
|
|
var debug = function() {};
|
|
if (process.env.NODE_ENV !== 'production') {
|
|
debug = require('debug')('sockjs-client:iframe-bootstrap');
|
|
}
|
|
|
|
module.exports = function(SockJS, availableTransports) {
|
|
var transportMap = {};
|
|
availableTransports.forEach(function(at) {
|
|
if (at.facadeTransport) {
|
|
transportMap[at.facadeTransport.transportName] = at.facadeTransport;
|
|
}
|
|
});
|
|
|
|
// hard-coded for the info iframe
|
|
// TODO see if we can make this more dynamic
|
|
transportMap[InfoIframeReceiver.transportName] = InfoIframeReceiver;
|
|
var parentOrigin;
|
|
|
|
/* eslint-disable camelcase */
|
|
SockJS.bootstrap_iframe = function() {
|
|
/* eslint-enable camelcase */
|
|
var facade;
|
|
iframeUtils.currentWindowId = loc.hash.slice(1);
|
|
var onMessage = function(e) {
|
|
if (e.source !== parent) {
|
|
return;
|
|
}
|
|
if (typeof parentOrigin === 'undefined') {
|
|
parentOrigin = e.origin;
|
|
}
|
|
if (e.origin !== parentOrigin) {
|
|
return;
|
|
}
|
|
|
|
var iframeMessage;
|
|
try {
|
|
iframeMessage = JSON.parse(e.data);
|
|
} catch (ignored) {
|
|
debug('bad json', e.data);
|
|
return;
|
|
}
|
|
|
|
if (iframeMessage.windowId !== iframeUtils.currentWindowId) {
|
|
return;
|
|
}
|
|
switch (iframeMessage.type) {
|
|
case 's':
|
|
var p;
|
|
try {
|
|
p = JSON.parse(iframeMessage.data);
|
|
} catch (ignored) {
|
|
debug('bad json', iframeMessage.data);
|
|
break;
|
|
}
|
|
var version = p[0];
|
|
var transport = p[1];
|
|
var transUrl = p[2];
|
|
var baseUrl = p[3];
|
|
debug(version, transport, transUrl, baseUrl);
|
|
// change this to semver logic
|
|
if (version !== SockJS.version) {
|
|
throw new Error('Incompatible SockJS! Main site uses:' +
|
|
' "' + version + '", the iframe:' +
|
|
' "' + SockJS.version + '".');
|
|
}
|
|
|
|
if (!urlUtils.isOriginEqual(transUrl, loc.href) ||
|
|
!urlUtils.isOriginEqual(baseUrl, loc.href)) {
|
|
throw new Error('Can\'t connect to different domain from within an ' +
|
|
'iframe. (' + loc.href + ', ' + transUrl + ', ' + baseUrl + ')');
|
|
}
|
|
facade = new FacadeJS(new transportMap[transport](transUrl, baseUrl));
|
|
break;
|
|
case 'm':
|
|
facade._send(iframeMessage.data);
|
|
break;
|
|
case 'c':
|
|
if (facade) {
|
|
facade._close();
|
|
}
|
|
facade = null;
|
|
break;
|
|
}
|
|
};
|
|
|
|
eventUtils.attachEvent('message', onMessage);
|
|
|
|
// Start
|
|
iframeUtils.postMessage('s');
|
|
};
|
|
};
|