chrome-native-messaging

I am trying to get Native Messaging between my chrome extension and my c# application. The javascript works fine, but I am getting this error: Error when communicating with the native messaging host. The application does get launched along with the extension, as I saw from Task Manager. Here is my c# code. 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

I am using Chrome's Native Messaging API to pass the DOM of a page to my host. When I try passing a small string from my extension to my host, everything works, but when I try to pass the entire DOM (which isn't that large...only around 260KB), everything runs much slower and I eventually get a Native host has exited error preventing the host from responding. My main question: Why does it take so long to pass a 250KB - 350KB message from the extension to the host? According to the developer's site : Chrome starts each native messaging host in a separate process and communicates with it using

I have a native app written in c++ and a chrome-extension. I am communicating between them using 'chrome native messaging'. Native-App code: int main(int argc, char* argv[]) { unsigned int a, c, i, t=0; std::string inp; do { inp=""; t=0; // Sum the first 4 chars from stdin (the length of the message passed). for (i = 0; i <= 3; i++) { t += getchar(); } // Loop getchar to pull in the message until we reach the total // length provided. for (i=0; i < t; i++) { c = getchar(); inp += c; } // Collect the length of the message unsigned int len = inp.length(); //// We need to send the 4 btyes of

How do you process a Chrome Native Messaging API-call with a bash script? I succeeded in doing it with python with this example Sure I can call bash from the python code with subprocess , but is it possible to skip python and process the message in bash directly? The problematic part is reading the JSON serialized message into a variable. The message is serialized using JSON, UTF-8 encoded and is preceded with 32-bit message length in native byte order through stdin. echo $* only outputs: chrome-extension://knldjmfmopnpolahpmmgbagdohdnhkik/ Also something like read echo $REPLY doesn't output

I spent a few hours today researching how to get Chrome native messaging working with a C# native host. Conceptually it was quite simple, but there were a few snags that I resolved with help (in part) from these other questions: Native Messaging Chrome Native messaging from chrome extension to native host written in C# Very Slow to pass "large" amount of data from Chrome Extension to Host (written in C#) My solution is posted below. itslittlejohn Assuming the manifest is set up properly, here is a complete example for talking to a C# host using the "port" method: using System; using System.IO;