The Tor Browser / file comparison
comparison: toolkit/components/thumbnails/PageThumbsProtocol.js
toolkit/components/thumbnails/PageThumbsProtocol.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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deleted
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| -1:000000000000 | 0:cecd40c124cd |
|---|---|
| 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/. */ | |
| 4 | |
| 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 */ | |
| 17 | |
| 18 "use strict"; | |
| 19 | |
| 20 const Cu = Components.utils; | |
| 21 const Cc = Components.classes; | |
| 22 const Cr = Components.results; | |
| 23 const Ci = Components.interfaces; | |
| 24 | |
| 25 Cu.import("resource://gre/modules/PageThumbs.jsm"); | |
| 26 Cu.import("resource://gre/modules/XPCOMUtils.jsm"); | |
| 27 | |
| 28 XPCOMUtils.defineLazyModuleGetter(this, "Services", | |
| 29 "resource://gre/modules/Services.jsm"); | |
| 30 XPCOMUtils.defineLazyModuleGetter(this, "FileUtils", | |
| 31 "resource://gre/modules/FileUtils.jsm"); | |
| 32 | |
| 33 /** | |
| 34 * Implements the thumbnail protocol handler responsible for moz-page-thumb: URIs. | |
| 35 */ | |
| 36 function Protocol() { | |
| 37 } | |
| 38 | |
| 39 Protocol.prototype = { | |
| 40 /** | |
| 41 * The scheme used by this protocol. | |
| 42 */ | |
| 43 get scheme() PageThumbs.scheme, | |
| 44 | |
| 45 /** | |
| 46 * The default port for this protocol (we don't support ports). | |
| 47 */ | |
| 48 get defaultPort() -1, | |
| 49 | |
| 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 }, | |
| 58 | |
| 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 }, | |
| 70 | |
| 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 }, | |
| 82 | |
| 83 /** | |
| 84 * Decides whether to allow a blacklisted port. | |
| 85 * @return Always false, we'll never allow ports. | |
| 86 */ | |
| 87 allowPort: function () false, | |
| 88 | |
| 89 classID: Components.ID("{5a4ae9b5-f475-48ae-9dce-0b4c1d347884}"), | |
| 90 QueryInterface: XPCOMUtils.generateQI([Ci.nsIProtocolHandler]) | |
| 91 }; | |
| 92 | |
| 93 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([Protocol]); | |
| 94 | |
| 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 = {}; | |
| 105 | |
| 106 query.split("&").forEach(function (aParam) { | |
| 107 let [key, value] = aParam.split("=").map(decodeURIComponent); | |
| 108 params[key.toLowerCase()] = value; | |
| 109 }); | |
| 110 | |
| 111 return params; | |
| 112 } |
