通过Native Messaging从Chrome扩展程序接收C＃中的邮件 [英] Receiving message in C# from Chrome Extension through Native Messaging
问题描述
我正在尝试获取有效的标题标题以及来自Google Chrome的网址。我手动安装了Chrome扩展程序并创建了一个控制台应用程序，用于获取活动标签标题和网址。
首先，我安装了Chrome扩展程序，其中包含清单等文件。 json，background.js和popup.html。以下是我的代码。
background.js
I am trying to get active Tab Title as well as URL from Google Chrome. I have installed Chrome extension manually and created a console application for getting the active tab title and url.
First of all I have installed Chrome Extension which contains file like manifest.json, background.js and popup.html. Below is my code.
background.js
var port = chrome.runtime.connectNative('com.example.native');
function onActivate(activeInfo)
{
chrome.tabs.get(activeInfo.tabId, MyCurrentTab);
}
function getUrl(title, url)
{
var o = { title: title, url: url };
try
{
port.postMessage(o);
}
catch(err)
{
port = chrome.runtime.connectNative('com.example.native');
port.postMessage(o);
}
}
function MyCurrentTab(tab)
{
getUrl( tab.title, tab.url );
}
chrome.tabs.onActivated.addListener(onActivate);
manifest.json
{
name：watchURL，
description：阅读有效的Chrome网址，
版本：2.0，
权限：[
标签，
nativeMessaging
]，
背景：{
scripts：[background.js]，
持久：false
}，
browser_action：{
default_title：活动网址读取，
default_popup：popup.html
}，
manifest_version：2
}
然后我为本机消息创建了主机本机json文件。下面是代码。
{
name：com.example.native，
说明：对Chrome扩展程序的本机支持，
路径：ChromeExt.exe，
类型：stdio，
allowed_origins：[
chrome-extension：// xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx /
]
}
之后，我为同名的本地消息创建了注册表项（com.example.native）。
C＃控制台应用程序的代码如下所示：
manifest.json
{
"name": "watchURL",
"description": "Reading Active Chrome URL",
"version": "2.0",
"permissions": [
"tabs",
"nativeMessaging"
],
"background": {
"scripts": ["background.js"],
"persistent": false
},
"browser_action": {
"default_title": "The active url read",
"default_popup": "popup.html"
},
"manifest_version": 2
}
Then I have created the host native json file for native messaging. Below is the code.
{
"name": "com.example.native",
"description": "Native support for Chrome Extension",
"path": "ChromeExt.exe",
"type": "stdio",
"allowed_origins": [
"chrome-extension://xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/"
]
}
After that, I have created registry entry for native messaging with same name (com.example.native).
The code for C# console application is shown below,
private static string OpenStandardStreamIn()
{
//// We need to read first 4 bytes for length information
Stream stdin = Console.OpenStandardInput();
int length = 0;
byte[] bytes = new byte[4];
stdin.Read(bytes, 0, 4);
length = System.BitConverter.ToInt32(bytes, 0);
string input = "";
for (int i = 0; i < length; i++)
{
input += (char)stdin.ReadByte();
}
return input;
}
我保留了system32文件夹下的本机主机json文件和C＃application .exe文件。但是当我要在Chrome浏览器上打开www.google.com或www.yahoo.com时，没有任何反应。我还在C＃应用程序中编写了文件转储代码，但没有运气。
我将稍后在谷歌商店发布我的扩展程序，一旦手动成功完成。
现在我的问题是我需要如何执行此控制台应用程序并从Chrome扩展程序中获取标题和URL。
我现在应该做什么？请帮助我。
任何形式的帮助都将受到高度赞赏。
I have kept the native host json file and C# application .exe file under the system32 folder. But when I am going to open www.google.com or then www.yahoo.com at the chrome browser, nothing happens. I have also written code for a file dump inside that C# app but no luck.
I will publish my extension later on google store once it is manually done successfully.
Now my question is how I need to execute this console application and fetch the Title and URL from the Chrome Extension.
What I am supposed to do now? Please help me in this regard.
Any kind of help will be highly appreciated.
推荐答案
I找到了。我在上面发布的所有代码都是正确的。问题出在我的C＃代码的另一种方法中。我评论说，在system32文件夹下替换了新版本的C＃代码，每当我使用谷歌浏览器时，文件转储就会自动发生。无需单独运行C＃.exe文件。我花了很长时间，因为这是我第一次使用Chrome Extension开发，我正在寻找如何调试整个事情。
I found it. All the codes I posted above are correct. The problem was inside another method of my C# code. I commented that, replaced the newer build of the C# code under system32 folder and the file dump is happening automatically whenever I am working with Google Chrome. No need to run the C# .exe file separately. It took time for me as it was my first time with Chrome Extension development and I was looking for how to debug the whole thing.
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