我希望操作当前位于Chrome标签页上的内容页面,如果以下内容无法做到这一点,那么我需要找到方法来实现这一目标!
嘿所有我试图让这个新的chrome扩展与我的C#程序一起来回传递消息。我已经在stackoverflow上看到了很多代码演示,这主要是我一直在想的,但似乎所有的例子都不适合我。
我遇到的问题是我收到错误:
Connecting to native messaging host com.google.chrome.example.echo
Uncaught TypeError: chrome.runtime.connectNative is not a function
每当我尝试“连接”到端口时。
不知道我做错了什么,因为我在这里跟着其他的tetorials,他们似乎都说它有效......
JS main.js:
var port = null;
var getKeys = function (obj) {
var keys = [];
for (var key in obj) {
keys.push(key);
}
return keys;
}
function appendMessage(text) {
document.getElementById('response').innerHTML += "<p>" + text + "</p>";
}
function updateUiState() {
if (port) {
document.getElementById('connect-button').style.display = 'none';
document.getElementById('input-text').style.display = 'block';
document.getElementById('send-message-button').style.display = 'block';
} else {
document.getElementById('connect-button').style.display = 'block';
document.getElementById('input-text').style.display = 'none';
document.getElementById('send-message-button').style.display = 'none';
}
}
function sendNativeMessage() {
message = { "text": document.getElementById('input-text').value };
port.postMessage(message);
appendMessage("Sent message: <b>" + JSON.stringify(message) + "</b>");
}
function onNativeMessage(message) {
appendMessage("Received message: <b>" + JSON.stringify(message) + "</b>");
}
function onDisconnected() {
appendMessage("Failed to connect: " + chrome.runtime.lastError.message);
port = null;
updateUiState();
}
function connect() {
var hostName = "com.google.chrome.example.echo";
appendMessage("Connecting to native messaging host <b>" + hostName + "</b>")
console.log("Connecting to native messaging host " + hostName);
port = chrome.runtime.connectNative(hostName);
port.onMessage.addListener(onNativeMessage);
port.onDisconnect.addListener(onDisconnected);
updateUiState();
}
document.addEventListener('DOMContentLoaded', function () {
document.getElementById('connect-button').addEventListener(
'click', connect);
document.getElementById('send-message-button').addEventListener(
'click', sendNativeMessage);
updateUiState();
});
manifest.json:
{
// Extension ID: knldjmfmopnpolahpmmgbagdohdnhkik
"key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDcBHwzDvyBQ6bDppkIs9MP4ksKqCMyXQ/A52JivHZKh4YO/9vJsT3oaYhSpDCE9RPocOEQvwsHsFReW2nUEc6OLLyoCFFxIb7KkLGsmfakkut/fFdNJYh0xOTbSN8YvLWcqph09XAY2Y/f0AL7vfO1cuCqtkMt8hFrBGWxDdf9CQIDAQAB",
"name": "Native Messaging Example",
"version": "1.0",
"manifest_version": 2,
"description": "Send a message to a native application.",
"app": {
"launch": {
"local_path": "main.html"
}
},
"icons": {
"128": "icon-128.png"
},
"permissions": [
"nativeMessaging"
]
}
注册局:
REG ADD "HKCU\Software\Google\Chrome\NativeMessagingHosts\com.google.chrome.example.echo" /ve /t REG_SZ /d "%~dp0com.google.chrome.example.echo-win.json" /f
C#代码:
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
namespace talkWithChromeCSharp
{
class Program
{
public static void Main(string[] args)
{
JObject data;
while ((data = Read()) != null)
{
var processed = ProcessMessage(data);
Write(processed);
if (processed == "exit")
{
return;
}
}
}
public static string ProcessMessage(JObject data)
{
var message = data["message"].Value<string>();
switch (message)
{
case "test":
return "testing!";
case "exit":
return "exit";
default:
return "echo: " + message;
}
}
public static JObject Read()
{
var stdin = Console.OpenStandardInput();
var length = 0;
var lengthBytes = new byte[4];
stdin.Read(lengthBytes, 0, 4);
length = BitConverter.ToInt32(lengthBytes, 0);
var buffer = new char[length];
using (var reader = new StreamReader(stdin))
{
while (reader.Peek() >= 0)
{
reader.Read(buffer, 0, buffer.Length);
}
}
return (JObject)JsonConvert.DeserializeObject<JObject>(new string(buffer))["data"];
}
public static void Write(JToken data)
{
var json = new JObject();
json["data"] = data;
var bytes = System.Text.Encoding.UTF8.GetBytes(json.ToString(Formatting.None));
var stdout = Console.OpenStandardOutput();
stdout.WriteByte((byte)((bytes.Length >> 0) & 0xFF));
stdout.WriteByte((byte)((bytes.Length >> 8) & 0xFF));
stdout.WriteByte((byte)((bytes.Length >> 16) & 0xFF));
stdout.WriteByte((byte)((bytes.Length >> 24) & 0xFF));
stdout.Write(bytes, 0, bytes.Length);
stdout.Flush();
}
}
}
com.google.chrome.example.echo-win.json文件:
{
"name": "com.google.chrome.example.echo",
"description": "Chrome Native Messaging API Example Host",
"path": "native-messaging-example-host.bat",
"type": "stdio",
"allowed_origins": [
"chrome-extension://knldjmfmopnpolahpmmgbagdohdnhkik/"
]
}
HTML main.html:
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<script src='main.js'></script>
</head>
<body>
<button id='connect-button'>Connect</button>
<input id='input-text' type='text' />
<button id='send-message-button'>Send</button>
<div id='response'></div>
</body>
</html>
我在Visual Studio中的目录结构:
C:\Users\t||||||\Documents\Visual Studio 2012\Projects\talkWithChromeCSharp\talkWithChromeCSharp
-APP
|-icon-128.png
|-main.html
|-main.js
|-manifest.json
-bin
|-Debug
|-Newtonsoft.Json.dll
|-talkWithChromeCSharp.exe
|-etc etc...
|-Release
-obj
-Properties
-regs
|-com.google.chrome.example.echo-win.json
|-install_host.bat
|-etc etc...
启动VS调试后,我安装插件并在chrome浏览器上加载main.html文件,然后单击“连接”按钮。那是我收到错误的时候。
我错过了什么?
更新
这是它的正确ID。我保持这种方式,因为我猜测“KEY”是决定ID的原因。
答案 0 :(得分:10)
太多的混乱并没有很好地解释哪些对我有用。 因此,在这里我试图制作一个“白痴证明”的文件。 (请改进此版本)
目标: Windows操作系统,Google Chrome测试版直到50版测试,与原生应用程序通信
第1步:
下载: https://developer.chrome.com/extensions/examples/api/nativeMessaging/app.zip
第2步:
将下载的应用加载到Google Chrome
第3步:
a)添加注册表项
REG ADD "HKLM\Software\Google\Chrome\NativeMessagingHosts\com.google.chrome.example.echo" /ve /t REG_SZ /d "C:\\run-my-exe\\manifest.json" /f
b)要制作自定义Chrome执行器,请将以下内容复制到C:\ run-my-exe \ run-chrome.bat:
"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --enable--native-messaging --native-messaging-hosts="com.google.chrome.example.echo=C:\\run-my-exe\\manifest.json"
第4步:主持人
a)将以下内容放到C:\ run-my-exe \ manifest.json
{
"name": "com.google.chrome.example.echo",
"description": "Chrome Native Messaging API Example Host",
"path": "native-messaging-example-host.bat",
"type": "stdio",
"allowed_origins": [
"chrome-extension://knldjmfmopnpolahpmmgbagdohdnhkik/"
]
}
b)将以下内容放到C:\ run-my-exe \ native-messaging-example-host.bat
@echo off
cd %windir%\system32
start calc.exe
第5步:我现在如何运行它?
a)使用此脚本打开chrome:C:\\run-my-exe\\run-chrome.bat
b)转到chrome://apps
c)启动
通过图标
不如下:
最终输出:
答案 1 :(得分:2)
您不应该直接打开main.html,而应该通过chrome:// apps /
从Chrome的应用启动器中打开答案 2 :(得分:1)
小心复制粘贴!
我会假设您获得了清单。 替换&#34;键&#34;用合适的一个
和&#34; allowed_origins&#34;使用您的实际扩展ID而不是示例
中的扩展IDhttps://developer.chrome.com/apps/manifest/key
那里可能会有更多的错误,但那些只是我第一次看到的错误。
答案 3 :(得分:1)
由于您使用的是生成exe
文件作为输出的C#项目,因此native-messaging-example-host.bat
的文件不应该像原始示例那样:
python "%~dp0/native-messaging-example-host" %*
相反,批处理文件应更改如下:
@echo off
Pushd C:\Users\h.aghajani\Desktop\host /*Path directory of your exe*/
start native-messaging-example-host.exe /*Name of the execution file*/