pjs/webapprt/ContentPolicy.js

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1.9 KiB
JavaScript
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cu = Components.utils;
Cu.import("resource://webapprt/modules/WebappRT.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
// Allow certain origins to load as top-level documents
const allowedOrigins = [
WebappRT.config.app.origin,
];
function ContentPolicy() {}
ContentPolicy.prototype = {
classID: Components.ID("{75acd178-3d5a-48a7-bd92-fba383520ae6}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentPolicy]),
shouldLoad: function(contentType, contentLocation, requestOrigin, context, mimeTypeGuess, extra) {
// Redirect top-level document loads that aren't special schemes to the
// default browser when trying to load pages outside of allowed origins
let {prePath, scheme} = contentLocation;
if (contentType == Ci.nsIContentPolicy.TYPE_DOCUMENT &&
!/^(about|chrome|resource)$/.test(scheme) &&
allowedOrigins.indexOf(prePath) == -1) {
// Send the url to the default browser
Cc["@mozilla.org/uriloader/external-protocol-service;1"].
getService(Ci.nsIExternalProtocolService).
getProtocolHandlerInfo(scheme).
launchWithURI(contentLocation);
// Using window.open will first open then navigate, so explicitly close
if (context.currentURI.spec == "about:blank") {
context.ownerDocument.defaultView.close();
};
return Ci.nsIContentPolicy.REJECT_SERVER;
}
return Ci.nsIContentPolicy.ACCEPT;
},
shouldProcess: function(contentType, contentLocation, requestOrigin, context, mimeType, extra) {
return Ci.nsIContentPolicy.ACCEPT;
},
};
const NSGetFactory = XPCOMUtils.generateNSGetFactory([ContentPolicy]);