toolkit/components/thumbnails/PageThumbsProtocol.js@129ffea94266
toolkit/components/thumbnails/PageThumbsProtocol.js
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
3 * You can obtain one at http://mozilla.org/MPL/2.0/. */
5 /**
6 * PageThumbsProtocol.js
7 *
8 * This file implements the moz-page-thumb:// protocol and the corresponding
9 * channel delivering cached thumbnails.
10 *
11 * URL structure:
12 *
13 * moz-page-thumb://thumbnail?url=http%3A%2F%2Fwww.mozilla.org%2F
14 *
15 * This URL requests an image for 'http://www.mozilla.org/'.
16 */
18 "use strict";
20 const Cu = Components.utils;
21 const Cc = Components.classes;
22 const Cr = Components.results;
23 const Ci = Components.interfaces;
25 Cu.import("resource://gre/modules/PageThumbs.jsm");
26 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
28 XPCOMUtils.defineLazyModuleGetter(this, "Services",
29 "resource://gre/modules/Services.jsm");
30 XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
31 "resource://gre/modules/FileUtils.jsm");
33 /**
34 * Implements the thumbnail protocol handler responsible for moz-page-thumb: URIs.
35 */
36 function Protocol() {
37 }
39 Protocol.prototype = {
40 /**
41 * The scheme used by this protocol.
42 */
43 get scheme() PageThumbs.scheme,
45 /**
46 * The default port for this protocol (we don't support ports).
47 */
48 get defaultPort() -1,
50 /**
51 * The flags specific to this protocol implementation.
52 */
53 get protocolFlags() {
54 return Ci.nsIProtocolHandler.URI_DANGEROUS_TO_LOAD |
55 Ci.nsIProtocolHandler.URI_NORELATIVE |
56 Ci.nsIProtocolHandler.URI_NOAUTH;
57 },
59 /**
60 * Creates a new URI object that is suitable for loading by this protocol.
61 * @param aSpec The URI string in UTF8 encoding.
62 * @param aOriginCharset The charset of the document from which the URI originated.
63 * @return The newly created URI.
64 */
65 newURI: function Proto_newURI(aSpec, aOriginCharset) {
66 let uri = Cc["@mozilla.org/network/simple-uri;1"].createInstance(Ci.nsIURI);
67 uri.spec = aSpec;
68 return uri;
69 },
71 /**
72 * Constructs a new channel from the given URI for this protocol handler.
73 * @param aURI The URI for which to construct a channel.
74 * @return The newly created channel.
75 */
76 newChannel: function Proto_newChannel(aURI) {
77 let {url} = parseURI(aURI);
78 let file = PageThumbsStorage.getFilePathForURL(url);
79 let fileuri = Services.io.newFileURI(new FileUtils.File(file));
80 return Services.io.newChannelFromURI(fileuri);
81 },
83 /**
84 * Decides whether to allow a blacklisted port.
85 * @return Always false, we'll never allow ports.
86 */
87 allowPort: function () false,
89 classID: Components.ID("{5a4ae9b5-f475-48ae-9dce-0b4c1d347884}"),
90 QueryInterface: XPCOMUtils.generateQI([Ci.nsIProtocolHandler])
91 };
93 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([Protocol]);
95 /**
96 * Parses a given URI and extracts all parameters relevant to this protocol.
97 * @param aURI The URI to parse.
98 * @return The parsed parameters.
99 */
100 function parseURI(aURI) {
101 let {scheme, staticHost} = PageThumbs;
102 let re = new RegExp("^" + scheme + "://" + staticHost + ".*?\\?");
103 let query = aURI.spec.replace(re, "");
104 let params = {};
106 query.split("&").forEach(function (aParam) {
107 let [key, value] = aParam.split("=").map(decodeURIComponent);
108 params[key.toLowerCase()] = value;
109 });
111 return params;
112 }
