The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/addon-sdk/source/lib/sdk/io/data.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,82 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +"use strict";
     1.9 +
    1.10 +module.metadata = {
    1.11 +  "stability": "unstable"
    1.12 +};
    1.13 +
    1.14 +const { Cc, Ci, Cu } = require("chrome");
    1.15 +const base64 = require("../base64");
    1.16 +const IOService = Cc["@mozilla.org/network/io-service;1"].
    1.17 +  getService(Ci.nsIIOService);
    1.18 +
    1.19 +const { deprecateFunction } = require('../util/deprecate');
    1.20 +const { NetUtil } = Cu.import("resource://gre/modules/NetUtil.jsm");
    1.21 +const FaviconService = Cc["@mozilla.org/browser/favicon-service;1"].
    1.22 +                          getService(Ci.nsIFaviconService);
    1.23 +
    1.24 +const PNG_B64 = "data:image/png;base64,";
    1.25 +const DEF_FAVICON_URI = "chrome://mozapps/skin/places/defaultFavicon.png";
    1.26 +let   DEF_FAVICON = null;
    1.27 +
    1.28 +/**
    1.29 + * Takes URI of the page and returns associated favicon URI.
    1.30 + * If page under passed uri has no favicon then base64 encoded data URI of
    1.31 + * default faveicon is returned.
    1.32 + * @param {String} uri
    1.33 + * @returns {String}
    1.34 + */
    1.35 +function getFaviconURIForLocation(uri) {
    1.36 +  let pageURI = NetUtil.newURI(uri);
    1.37 +  try {
    1.38 +    return FaviconService.getFaviconDataAsDataURL(
    1.39 +                  FaviconService.getFaviconForPage(pageURI));
    1.40 +  }
    1.41 +  catch(e) {
    1.42 +    if (!DEF_FAVICON) {
    1.43 +      DEF_FAVICON = PNG_B64 +
    1.44 +                    base64.encode(getChromeURIContent(DEF_FAVICON_URI));
    1.45 +    }
    1.46 +    return DEF_FAVICON;
    1.47 +  }
    1.48 +}
    1.49 +exports.getFaviconURIForLocation = getFaviconURIForLocation;
    1.50 +
    1.51 +/**
    1.52 + * Takes chrome URI and returns content under that URI.
    1.53 + * @param {String} chromeURI
    1.54 + * @returns {String}
    1.55 + */
    1.56 +function getChromeURIContent(chromeURI) {
    1.57 +  let channel = IOService.newChannel(chromeURI, null, null);
    1.58 +  let input = channel.open();
    1.59 +  let stream = Cc["@mozilla.org/binaryinputstream;1"].
    1.60 +                createInstance(Ci.nsIBinaryInputStream);
    1.61 +  stream.setInputStream(input);
    1.62 +  let content = stream.readBytes(input.available());
    1.63 +  stream.close();
    1.64 +  input.close();
    1.65 +  return content;
    1.66 +}
    1.67 +exports.getChromeURIContent = deprecateFunction(getChromeURIContent,
    1.68 +  'getChromeURIContent is deprecated, ' +
    1.69 +  'please use require("sdk/net/url").readURI instead.'
    1.70 +);
    1.71 +
    1.72 +/**
    1.73 + * Creates a base-64 encoded ASCII string from a string of binary data.
    1.74 + */
    1.75 +exports.base64Encode = deprecateFunction(base64.encode,
    1.76 +  'base64Encode is deprecated, ' +
    1.77 +  'please use require("sdk/base64").encode instead.'
    1.78 +);
    1.79 +/**
    1.80 + * Decodes a string of data which has been encoded using base-64 encoding.
    1.81 + */
    1.82 +exports.base64Decode = deprecateFunction(base64.decode,
    1.83 +  'base64Dencode is deprecated, ' +
    1.84 +  'please use require("sdk/base64").decode instead.'
    1.85 +);