jefersonsv / ChromeRemoteSharp

Low level implementation of Chrome DevTools Protocol

ChromeRemoteSharp

Low level implementation of Chrome DevTools Protocol. This project implements the last version of protocol (https://chromedevtools.github.io/devtools-protocol/tot/)

1.1. Table of contents

• ChromeRemoteSharp
  • 1.1. Table of contents
  • 1.2. Drivers
  • 1.3. Domains available
  • 1.4. Sample

1.2. Drivers

The library has two drivers

• RawDriver. Send and receive custom commands using ws protocol
• LowLevelDriver. Use any available command of domain list

1.3. Domains available

• Accessibility
• ​Animation
• ​ApplicationCache
• ​Audits
• ​Browser
• ​CacheStorage
• ​Console
• ​CSS
• ​Database
• ​Debugger
• ​DeviceOrientation
• ​DOM
• ​DOMDebugger
• ​DOMSnapshot
• ​DOMStorage
• ​Emulation
• ​HeadlessExperimental
• ​HeapProfiler
• ​IndexedDB
• ​Input
• ​Inspector
• ​IO
• ​LayerTree
• ​Log
• ​Memory
• ​Network
• ​Overlay
• ​Page
• ​Performance
• ​Profiler
• ​Runtime
• ​Schema
• ​Security
• ​ServiceWorker
• ​Storage
• ​SystemInfo
• ​Target
• ​Tethering
• ​Tracing

1.4. Sample

Helper.KillAllChromeInstances(); // kill all opened instances of google chrome
Helper.StartChromeDevTools(); // start new chrome browser instance point to http://localhost:9222

if (!await Helper.CheckWebSocketAsync()) // check if remote debugging url it's available
    Helper.StartChromeHeadless(); // start a headless instance of google chrome

var url = await Helper.FirstWebSocketDebuggerUrlAsync(); // get the first ws remote url
driver = new LowLevelDriver(url); // instance driver

// navigate
await driver.Page.NavigateAsync("https://www.msn.com"); // navigate
System.Threading.Thread.Sleep(2000);

// screenshot
var screenShotJson = await driver.Page.CaptureScreenshotAsync(); // capture image and return base64 json image
Console.WriteLine(screenShotJson);

// get version
Console.WriteLine(await driver.Browser.GetVersionAsync()); // get browser version

// get browser command line
Console.WriteLine(await driver.Browser.GetBrowserCommandLineAsync()); // get all command lines of headless instance

// page cookies
Console.WriteLine(await driver.Page.GetCookiesAsync()); // get all cookies

// get document
var docJson = await driver.Dom.GetDocumentAsync(); // get document in raw format devtools protocol
var nodeId = docJson["root"]["nodeId"].ToObject<int>();

// get html
var htmlJson = await driver.Dom.GetOuterHTMLAsync(nodeId); // get source code of page
var html = htmlJson["outerHTML"].ToString();
Console.WriteLine(html);