在Firefox WebExtension的后台使用ctypes
我正在尝试为Firefox编写WebExtension。基本上,我需要一个如何从Firefox运行本地程序的工作示例 我目前实施的扩展包括:在Firefox WebExtension的后台使用ctypes,firefox,jsctypes,firefox-addon-webextensions,Firefox,Jsctypes,Firefox Addon Webextensions,我正在尝试为Firefox编写WebExtension。基本上,我需要一个如何从Firefox运行本地程序的工作示例 我目前实施的扩展包括: background.js content-scripts.js manifest.json 我正在从网页发送一条消息,该消息由content-scripts.js处理,后者将其转发到background.js。但是在background.js中的msgbox函数中,我无法调用ctypes。这给了我一个错误: 未定义ctypes 我尝试以不同的方式加载
- background.js
- content-scripts.js
- manifest.json
Components.utils.import(“resource://gre/modules/ctypes.jsm“”
或
var{ctypes}=Cu.import(“resource://gre/modules/ctypes.jsm“
我做错了什么
这是我的扩展的源代码
manifest.josn:
{
"description": "Test web-extension.",
"manifest_version": 2,
"name": "Example",
"version": "1.0",
"homepage_url": "http://example.org",
"icons": {
"48": "icons/example-48.png"
},
"content_scripts": [
{
"matches": ["*://web.localhost.com/*"],
"js": ["content-scripts.js"]
}
],
"background": {
"scripts": ["background.js"]
},
"applications": {
"gecko": {
"id": "example@mozilla.org",
"strict_min_version": "45.0"
}
},
"permissions": []
}
chrome.runtime.onMessage.addListener(msgbox());
function msgbox() {
var lib = ctypes.open("C:\\WINDOWS\\system32\\user32.dll");
/* Declare the signature of the function we are going to call */
var msgBox = lib.declare("MessageBoxW",
ctypes.winapi_abi,
ctypes.int32_t,
ctypes.int32_t,
ctypes.jschar.ptr,
ctypes.jschar.ptr,
ctypes.int32_t);
var MB_OK = 0;
var ret = msgBox(0, "Hello world", "title", MB_OK);
lib.close();
}
background.js:
{
"description": "Test web-extension.",
"manifest_version": 2,
"name": "Example",
"version": "1.0",
"homepage_url": "http://example.org",
"icons": {
"48": "icons/example-48.png"
},
"content_scripts": [
{
"matches": ["*://web.localhost.com/*"],
"js": ["content-scripts.js"]
}
],
"background": {
"scripts": ["background.js"]
},
"applications": {
"gecko": {
"id": "example@mozilla.org",
"strict_min_version": "45.0"
}
},
"permissions": []
}
chrome.runtime.onMessage.addListener(msgbox());
function msgbox() {
var lib = ctypes.open("C:\\WINDOWS\\system32\\user32.dll");
/* Declare the signature of the function we are going to call */
var msgBox = lib.declare("MessageBoxW",
ctypes.winapi_abi,
ctypes.int32_t,
ctypes.int32_t,
ctypes.jschar.ptr,
ctypes.jschar.ptr,
ctypes.int32_t);
var MB_OK = 0;
var ret = msgBox(0, "Hello world", "title", MB_OK);
lib.close();
}
您只能使用WebExtension API(在上)在您的WebExtension中。
Cu.import
,尤其是ctypes不是WebExtension API的一部分,因此无法使用。如果您想与操作系统级功能交互,可能需要等待chrome.runtime.connectNative
。如果我尝试通过Firefox的“旧”附加组件实现浏览器操作系统通信(不是通过WebExtension),是否可以在那里使用ctypes?是的,XUL(旧版)和附加SDK扩展都支持ctypes。