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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80 filetype=javascript: */
/* 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
"use strict";
var EXPORTED_SYMBOLS = [ "Feeds" ];
ChromeUtils.defineModuleGetter(this, "BrowserUtils",
var Feeds = {
/**
* isValidFeed: checks whether the given data represents a valid feed.
*
* @param aLink
* An object representing a feed with title, href and type.
* @param aPrincipal
* The principal of the document, used for security check.
* @param aIsFeed
* Whether this is already a known feed or not, if true only a security
* check will be performed.
*/
isValidFeed(aLink, aPrincipal, aIsFeed) {
if (!aLink || !aPrincipal)
return false;
var type = aLink.type.toLowerCase().replace(/^\s+|\s*(?:;.*)?$/g, "");
if (!aIsFeed) {
aIsFeed = (type == "application/rss+xml" ||
type == "application/atom+xml");
}
if (aIsFeed) {
try {
let href = BrowserUtils.makeURI(aLink.href, aLink.ownerDocument.characterSet)
BrowserUtils.urlSecurityCheck(href, aPrincipal,
Ci.nsIScriptSecurityManager.DISALLOW_INHERIT_PRINCIPAL);
return type || "application/rss+xml";
} catch (ex) {
}
}
return null;
},
};