Question

我正在使用Chrome的本机消息在Chrome扩展程序和C＃EXE之间进行通信。可以连接到主机（exe）并向每个主机发送消息，但是主机（C＃exe）无法从chrome扩展程序接收数据。

不可能访问正在运行的进程进行调试。因此，我确实将所有数据写入了文件以进行跟踪。但是代码在代码中停止或循环，在代码中将数据格式从流更改为字符串。 ->使用(var reader = new StreamReader(stdin)) 然后我发现主机从扩展名接收到有线的json数据，如下所示：

{"data":"\u0007\u0000\u0000\u0000\"hello\""}

我猜它在json中出现了一些控制字符。我该如何解决这些问题？

C＃

        public static void Main(string[] args)
        {
            JObject data;

            //data = Read();
            //fileWrite(JsonConvert.SerializeObject(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[2048];
            //stdin.Read(lengthBytes, 0, 100);
            int outputLength = stdin.Read(lengthBytes, 0, 2048);

            char[] chars = Encoding.UTF7.GetChars(lengthBytes, 0, outputLength);

            Write(new string(chars));

            length = BitConverter.ToInt32(lengthBytes, 0);

            var buffer = new char[length];
            using (var reader = new StreamReader(stdin))
            {
                while (reader.Peek() >= 0)
                {
                    string s = new string(buffer);
                    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();
        }

        public static void fileWrite(string text)
        {
            using (StreamWriter outputFile = new StreamWriter(@".\New_TEXT_File.txt", true))
            {
                outputFile.WriteLine(text);
            }
        }

Background.js

// Copyright 2013 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.

var port = null;

var getKeys = function(obj){
   var keys = [];
   for(var key in obj){
      keys.push(key);
   }
   return keys;
}


function appendMessage(message) {
  console.log(message);
}

function sendNativeMessage(message) {
  port.postMessage(message);
  appendMessage("Sent message: " + JSON.stringify(message));
}

function onNativeMessage(message) {
  appendMessage("Received message: " + JSON.stringify(message));
}

function onDisconnected() {
  appendMessage("Failed to connect: " + chrome.runtime.lastError.message);
  port = null;
}

function connect() {
  var hostName = "com.google.chrome.example.echo";
  appendMessage("Connecting to native messaging host" + hostName)
  port = chrome.runtime.connectNative(hostName);
  port.onMessage.addListener(onNativeMessage);
  port.onDisconnect.addListener(onDisconnected);

  document.addEventListener('keydown', function(event){
    alert(event.keyCode);
    } );
}

window.onload = connect();

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.",
  "background": {
    "scripts": ["background.js"]
    },
  "icons": {
    "128": "icon-128.png"
  },
  "permissions": [
    "nativeMessaging"
  ]
}

它应该正在发送和接收来自chrome扩展程序的所有数据。

C＃EXE无法从Chrome扩展程序接收Json

0 个答案: