dom/nfc/nsNfc.js@97036ab72558
dom/nfc/nsNfc.js
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
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 /* Copyright © 2013, Deutsche Telekom, Inc. */
7 "use strict";
9 const DEBUG = false;
10 function debug(s) {
11 if (DEBUG) dump("-*- Nfc DOM: " + s + "\n");
12 }
14 const Cc = Components.classes;
15 const Ci = Components.interfaces;
16 const Cu = Components.utils;
18 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
19 Cu.import("resource://gre/modules/Services.jsm");
20 Cu.import("resource://gre/modules/ObjectWrapper.jsm");
22 XPCOMUtils.defineLazyServiceGetter(this,
23 "appsService",
24 "@mozilla.org/AppsService;1",
25 "nsIAppsService");
26 const NFC_PEER_EVENT_READY = 0x01;
27 const NFC_PEER_EVENT_LOST = 0x02;
29 /**
30 * NFCTag
31 */
32 function MozNFCTag() {
33 debug("In MozNFCTag Constructor");
34 this._nfcContentHelper = Cc["@mozilla.org/nfc/content-helper;1"]
35 .getService(Ci.nsINfcContentHelper);
36 this.session = null;
38 // Map WebIDL declared enum map names to integer
39 this._techTypesMap = [];
40 this._techTypesMap['NFC_A'] = 0;
41 this._techTypesMap['NFC_B'] = 1;
42 this._techTypesMap['NFC_ISO_DEP'] = 2;
43 this._techTypesMap['NFC_F'] = 3;
44 this._techTypesMap['NFC_V'] = 4;
45 this._techTypesMap['NDEF'] = 5;
46 this._techTypesMap['NDEF_FORMATABLE'] = 6;
47 this._techTypesMap['MIFARE_CLASSIC'] = 7;
48 this._techTypesMap['MIFARE_ULTRALIGHT'] = 8;
49 this._techTypesMap['NFC_BARCODE'] = 9;
50 this._techTypesMap['P2P'] = 10;
51 }
52 MozNFCTag.prototype = {
53 _nfcContentHelper: null,
54 _window: null,
56 initialize: function(aWindow, aSessionToken) {
57 this._window = aWindow;
58 this.setSessionToken(aSessionToken);
59 },
61 // ChromeOnly interface
62 setSessionToken: function setSessionToken(aSessionToken) {
63 debug("Setting session token.");
64 this.session = aSessionToken;
65 // report to NFC worker:
66 this._nfcContentHelper.setSessionToken(aSessionToken);
67 },
69 _techTypesMap: null,
71 // NFCTag interface:
72 getDetailsNDEF: function getDetailsNDEF() {
73 return this._nfcContentHelper.getDetailsNDEF(this._window, this.session);
74 },
75 readNDEF: function readNDEF() {
76 return this._nfcContentHelper.readNDEF(this._window, this.session);
77 },
78 writeNDEF: function writeNDEF(records) {
79 return this._nfcContentHelper.writeNDEF(this._window, records, this.session);
80 },
81 makeReadOnlyNDEF: function makeReadOnlyNDEF() {
82 return this._nfcContentHelper.makeReadOnlyNDEF(this._window, this.session);
83 },
84 connect: function connect(enum_tech_type) {
85 let int_tech_type = this._techTypesMap[enum_tech_type];
86 return this._nfcContentHelper.connect(this._window, int_tech_type, this.session);
87 },
88 close: function close() {
89 return this._nfcContentHelper.close(this._window, this.session);
90 },
92 classID: Components.ID("{4e1e2e90-3137-11e3-aa6e-0800200c9a66}"),
93 contractID: "@mozilla.org/nfc/NFCTag;1",
94 QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
95 Ci.nsIDOMGlobalPropertyInitializer]),
96 };
98 /**
99 * NFCPeer
100 */
101 function MozNFCPeer() {
102 debug("In MozNFCPeer Constructor");
103 this._nfcContentHelper = Cc["@mozilla.org/nfc/content-helper;1"]
104 .getService(Ci.nsINfcContentHelper);
105 this.session = null;
106 }
107 MozNFCPeer.prototype = {
108 _nfcContentHelper: null,
109 _window: null,
111 initialize: function(aWindow, aSessionToken) {
112 this._window = aWindow;
113 this.setSessionToken(aSessionToken);
114 },
116 // ChromeOnly interface
117 setSessionToken: function setSessionToken(aSessionToken) {
118 debug("Setting session token.");
119 this.session = aSessionToken;
120 // report to NFC worker:
121 return this._nfcContentHelper.setSessionToken(aSessionToken);
122 },
124 // NFCPeer interface:
125 sendNDEF: function sendNDEF(records) {
126 // Just forward sendNDEF to writeNDEF
127 return this._nfcContentHelper.writeNDEF(this._window, records, this.session);
128 },
130 sendFile: function sendFile(blob) {
131 let data = {
132 "blob": blob
133 };
134 return this._nfcContentHelper.sendFile(this._window,
135 Cu.cloneInto(data, this._window),
136 this.session);
137 },
139 classID: Components.ID("{c1b2bcf0-35eb-11e3-aa6e-0800200c9a66}"),
140 contractID: "@mozilla.org/nfc/NFCPeer;1",
141 QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
142 Ci.nsIDOMGlobalPropertyInitializer]),
143 };
145 /**
146 * Navigator NFC object
147 */
148 function mozNfc() {
149 debug("In mozNfc Constructor");
150 try {
151 this._nfcContentHelper = Cc["@mozilla.org/nfc/content-helper;1"]
152 .getService(Ci.nsINfcContentHelper);
153 } catch(e) {
154 debug("No NFC support.")
155 }
156 }
157 mozNfc.prototype = {
158 _nfcContentHelper: null,
159 _window: null,
160 _wrap: function _wrap(obj) {
161 return Cu.cloneInto(obj, this._window);
162 },
164 init: function init(aWindow) {
165 debug("mozNfc init called");
166 this._window = aWindow;
167 },
169 // Only apps which have nfc-manager permission can call the following interfaces
170 // 'checkP2PRegistration' , 'notifyUserAcceptedP2P' , 'notifySendFileStatus',
171 // 'startPoll', 'stopPoll', and 'powerOff'.
172 checkP2PRegistration: function checkP2PRegistration(manifestUrl) {
173 // Get the AppID and pass it to ContentHelper
174 let appID = appsService.getAppLocalIdByManifestURL(manifestUrl);
175 return this._nfcContentHelper.checkP2PRegistration(this._window, appID);
176 },
178 notifyUserAcceptedP2P: function notifyUserAcceptedP2P(manifestUrl) {
179 let appID = appsService.getAppLocalIdByManifestURL(manifestUrl);
180 // Notify chrome process of user's acknowledgement
181 this._nfcContentHelper.notifyUserAcceptedP2P(this._window, appID);
182 },
184 notifySendFileStatus: function notifySendFileStatus(status, requestId) {
185 this._nfcContentHelper.notifySendFileStatus(this._window,
186 status, requestId);
187 },
189 startPoll: function startPoll() {
190 return this._nfcContentHelper.startPoll(this._window);
191 },
193 stopPoll: function stopPoll() {
194 return this._nfcContentHelper.stopPoll(this._window);
195 },
197 powerOff: function powerOff() {
198 return this._nfcContentHelper.powerOff(this._window);
199 },
201 getNFCTag: function getNFCTag(sessionToken) {
202 let obj = new MozNFCTag();
203 let nfcTag = this._window.MozNFCTag._create(this._window, obj);
204 if (nfcTag) {
205 obj.initialize(this._window, sessionToken);
206 return nfcTag;
207 } else {
208 debug("Error: Unable to create NFCTag");
209 return null;
210 }
211 },
213 getNFCPeer: function getNFCPeer(sessionToken) {
214 let obj = new MozNFCPeer();
215 let nfcPeer = this._window.MozNFCPeer._create(this._window, obj);
216 if (nfcPeer) {
217 obj.initialize(this._window, sessionToken);
218 return nfcPeer;
219 } else {
220 debug("Error: Unable to create NFCPeer");
221 return null;
222 }
223 },
225 // get/set onpeerready
226 get onpeerready() {
227 return this.__DOM_IMPL__.getEventHandler("onpeerready");
228 },
230 set onpeerready(handler) {
231 this.__DOM_IMPL__.setEventHandler("onpeerready", handler);
232 },
234 // get/set onpeerlost
235 get onpeerlost() {
236 return this.__DOM_IMPL__.getEventHandler("onpeerlost");
237 },
239 set onpeerlost(handler) {
240 this.__DOM_IMPL__.setEventHandler("onpeerlost", handler);
241 },
243 eventListenerWasAdded: function(evt) {
244 let eventType = this.getEventType(evt);
245 if (eventType == -1)
246 return;
247 this.registerTarget(eventType);
248 },
250 eventListenerWasRemoved: function(evt) {
251 let eventType = this.getEventType(evt);
252 if (eventType == -1)
253 return;
254 this.unregisterTarget(eventType);
255 },
257 registerTarget: function registerTarget(event) {
258 let self = this;
259 let appId = this._window.document.nodePrincipal.appId;
260 this._nfcContentHelper.registerTargetForPeerEvent(this._window, appId,
261 event, function(evt, sessionToken) {
262 self.session = sessionToken;
263 self.firePeerEvent(evt, sessionToken);
264 });
265 },
267 unregisterTarget: function unregisterTarget(event) {
268 let appId = this._window.document.nodePrincipal.appId;
269 this._nfcContentHelper.unregisterTargetForPeerEvent(this._window,
270 appId, event);
271 },
273 getEventType: function getEventType(evt) {
274 let eventType = -1;
275 switch (evt) {
276 case 'peerready':
277 eventType = NFC_PEER_EVENT_READY;
278 break;
279 case 'peerlost':
280 eventType = NFC_PEER_EVENT_LOST;
281 break;
282 default:
283 break;
284 }
285 return eventType;
286 },
288 firePeerEvent: function firePeerEvent(evt, sessionToken) {
289 let peerEvent = (NFC_PEER_EVENT_READY === evt) ? "peerready" : "peerlost";
290 let detail = {
291 "detail":sessionToken
292 };
293 let event = new this._window.CustomEvent(peerEvent, this._wrap(detail));
294 this.__DOM_IMPL__.dispatchEvent(event);
295 },
297 classID: Components.ID("{6ff2b290-2573-11e3-8224-0800200c9a66}"),
298 contractID: "@mozilla.org/navigatorNfc;1",
299 QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
300 Ci.nsIDOMGlobalPropertyInitializer]),
301 };
303 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([MozNFCTag, MozNFCPeer, mozNfc]);
