1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Custom bindings for the extension API.
var extensionNatives = requireNative('extension');
var GetExtensionViews = extensionNatives.GetExtensionViews;
var OpenChannelToExtension = extensionNatives.OpenChannelToExtension;
var OpenChannelToNativeApp = extensionNatives.OpenChannelToNativeApp;
var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
var inIncognitoContext = requireNative('process').InIncognitoContext();
chrome.extension = chrome.extension || {};
var manifestVersion = requireNative('process').GetManifestVersion();
if (manifestVersion < 2) {
chrome.self = chrome.extension;
chrome.extension.inIncognitoTab = inIncognitoContext;
}
chrome.extension.inIncognitoContext = inIncognitoContext;
// This should match chrome.windows.WINDOW_ID_NONE.
//
// We can't use chrome.windows.WINDOW_ID_NONE directly because the
// chrome.windows API won't exist unless this extension has permission for it;
// which may not be the case.
var WINDOW_ID_NONE = -1;
chromeHidden.registerCustomHook('extension',
function(bindingsAPI, extensionId) {
var apiFunctions = bindingsAPI.apiFunctions;
apiFunctions.setHandleRequest('getViews', function(properties) {
var windowId = WINDOW_ID_NONE;
var type = 'ALL';
if (properties) {
if (properties.type != null) {
type = properties.type;
}
if (properties.windowId != null) {
windowId = properties.windowId;
}
}
return GetExtensionViews(windowId, type) || null;
});
apiFunctions.setHandleRequest('getBackgroundPage', function() {
return GetExtensionViews(-1, 'BACKGROUND')[0] || null;
});
apiFunctions.setHandleRequest('getExtensionTabs', function(windowId) {
if (windowId == null)
windowId = WINDOW_ID_NONE;
return GetExtensionViews(windowId, 'TAB');
});
apiFunctions.setHandleRequest('getURL', function(path) {
path = String(path);
if (!path.length || path[0] != '/')
path = '/' + path;
return 'chrome-extension://' + extensionId + path;
});
function sendMessageUpdateArguments(functionName) {
// Align missing (optional) function arguments with the arguments that
// schema validation is expecting, e.g.
// extension.sendRequest(req) -> extension.sendRequest(null, req)
// extension.sendRequest(req, cb) -> extension.sendRequest(null, req, cb)
var args = Array.prototype.splice.call(arguments, 1); // skip functionName
var lastArg = args.length - 1;
// responseCallback (last argument) is optional.
var responseCallback = null;
if (typeof(args[lastArg]) == 'function')
responseCallback = args[lastArg--];
// request (second argument) is required.
var request = args[lastArg--];
// targetId (first argument, extensionId in the manfiest) is optional.
var targetId = null;
if (lastArg >= 0)
targetId = args[lastArg--];
if (lastArg != -1)
throw new Error('Invalid arguments to ' + functionName + '.');
return [targetId, request, responseCallback];
}
apiFunctions.setUpdateArgumentsPreValidate('sendRequest',
sendMessageUpdateArguments.bind(null, 'sendRequest'));
apiFunctions.setUpdateArgumentsPreValidate('sendMessage',
sendMessageUpdateArguments.bind(null, 'sendMessage'));
apiFunctions.setUpdateArgumentsPreValidate('sendNativeMessage',
sendMessageUpdateArguments.bind(null, 'sendNativeMessage'));
apiFunctions.setHandleRequest('sendRequest',
function(targetId, request, responseCallback) {
var port = chrome.extension.connect(targetId || extensionId,
{name: chromeHidden.kRequestChannel});
chromeHidden.Port.sendMessageImpl(port, request, responseCallback);
});
apiFunctions.setHandleRequest('sendMessage',
function(targetId, message, responseCallback) {
var port = chrome.extension.connect(targetId || extensionId,
{name: chromeHidden.kMessageChannel});
chromeHidden.Port.sendMessageImpl(port, message, responseCallback);
});
apiFunctions.setHandleRequest('sendNativeMessage',
function(targetId, message, responseCallback) {
var port = chrome.extension.connectNative(
targetId, message, chromeHidden.kNativeMessageChannel);
chromeHidden.Port.sendMessageImpl(port, '', responseCallback);
});
apiFunctions.setUpdateArgumentsPreValidate('connect', function() {
// Align missing (optional) function arguments with the arguments that
// schema validation is expecting, e.g.
// extension.connect() -> extension.connect(null, null)
// extension.connect({}) -> extension.connect(null, {})
var nextArg = 0;
// targetId (first argument) is optional.
var targetId = null;
if (typeof(arguments[nextArg]) == 'string')
targetId = arguments[nextArg++];
// connectInfo (second argument) is optional.
var connectInfo = null;
if (typeof(arguments[nextArg]) == 'object')
connectInfo = arguments[nextArg++];
if (nextArg != arguments.length)
throw new Error('Invalid arguments to connect.');
return [targetId, connectInfo];
});
apiFunctions.setUpdateArgumentsPreValidate('connectNative', function() {
var nextArg = 0;
// appName is required.
var appName = arguments[nextArg++];
// connectionMessage is required.
var connectMessage = arguments[nextArg++];
// channelName is only passed by sendMessage
var channelName = 'connectNative';
if (typeof(arguments[nextArg]) == 'string')
channelName = arguments[nextArg++];
if (nextArg != arguments.length)
throw new Error('Invalid arguments to connectNative.');
return [appName, {name: channelName, message: connectMessage}];
});
apiFunctions.setHandleRequest('connect', function(targetId, connectInfo) {
if (!targetId)
targetId = extensionId;
var name = '';
if (connectInfo && connectInfo.name)
name = connectInfo.name;
var portId = OpenChannelToExtension(extensionId, targetId, name);
if (portId >= 0)
return chromeHidden.Port.createPort(portId, name);
throw new Error('Error connecting to extension ' + targetId);
});
apiFunctions.setHandleRequest('connectNative',
function(nativeAppName, connectInfo) {
// Turn the object into a string here, because it eventually will be.
var portId = OpenChannelToNativeApp(extensionId,
nativeAppName,
connectInfo.name,
JSON.stringify(connectInfo.message));
if (portId >= 0) {
return chromeHidden.Port.createPort(portId, connectInfo.name);
}
throw new Error('Error connecting to native app: ' + nativeAppName);
});
});
|
