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use std::fmt::{Debug, Display, Formatter};
use std::fs;
use hyper::{Client, Uri};
use hyper::body::Buf;
use serde::{ Serialize, Deserialize };
use serde_json;
use tungstenite::Message;
type TokioResult<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
enum AppError {
ContentNotFound
}
impl Debug for AppError {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
let message = match self {
AppError::ContentNotFound => "Content not found"
};
write!(f, "{}", message)
}
}
impl Display for AppError {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", self)
}
}
unsafe impl Send for AppError { }
unsafe impl Sync for AppError { }
impl std::error::Error for AppError { }
#[allow(non_snake_case)]
#[allow(dead_code)]
#[derive(Deserialize)]
struct WebContent {
description: String,
devtoolsFrontendUrl: String,
id: String,
title: String,
r#type: String,
url: String,
webSocketDebuggerUrl: String
}
#[allow(non_snake_case)]
#[allow(dead_code)]
#[derive(Serialize)]
struct DebuggerCommandParams {
expression: String,
userGesture: bool
}
#[allow(non_snake_case)]
#[allow(dead_code)]
#[derive(Serialize)]
struct DebuggerCommand {
id: u32,
method: String,
params: DebuggerCommandParams
}
/// Downloads all content from a website
async fn get_web_content(url: Uri) -> TokioResult<Vec<WebContent>> {
let client = Client::new();
let response = client.get(url).await?;
let body = hyper::body::aggregate(response).await?;
let data = String::from(std::str::from_utf8(body.chunk())?);
Ok(serde_json::from_str(data.as_str())?)
}
/// Loads plugins
fn load_plugins() -> String {
let paths = fs::read_dir("./plugins");
if let Ok(paths) = paths {
let mut result = String::new();
for entry in paths {
if let Ok(entry) = entry {
if let Ok(file_type) = entry.file_type() {
if file_type.is_file() {
if let Ok(content) = fs::read_to_string(entry.path()) {
result.push_str(format!("plugins.push(new {});", content).as_str());
}
}
}
}
}
result
} else {
String::from("")
}
}
#[tokio::main]
async fn main() -> TokioResult<()> {
// If CEF Debugging is enabled, it will be accessible through port 8080
let url = "http://127.0.0.1:8080/json".parse::<hyper::Uri>().unwrap();
// Load all available tabs that can be debugged
let contents = get_web_content(url).await?;
// Find QuickAccess tab (sidebar menu) and get the debugger websocket interface url
let mut quick_access_debug_url: Option<String> = None;
for content in &contents {
if content.title == "QuickAccess" {
quick_access_debug_url = Some(content.webSocketDebuggerUrl.clone());
}
}
if let Some(url) = quick_access_debug_url {
// Connect to debugger websocket
let (mut socket, _) = tungstenite::connect(url)?;
// Create a inject command to send to the debugger
let command = DebuggerCommand {
id: 1,
method: String::from("Runtime.evaluate"),
params: DebuggerCommandParams {
expression: String::from(include_str!("plugin_page.js").replace("{{ PLUGINS }}", load_plugins().as_str())),
userGesture: true
}
};
// Send command to debugger
socket.write_message(Message::Text(serde_json::to_string(&command)?))?;
// Print response
let response = socket.read_message()?;
println!("{}", response);
socket.close(None)?;
} else {
return Err(AppError::ContentNotFound.into());
}
Ok(())
}
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