Files
Cultivation/src-tauri/src/proxy.rs
2022-05-21 22:59:16 -04:00

174 lines
5.0 KiB
Rust

/*
* Built on example code from:
* https://github.com/omjadas/hudsucker/blob/main/examples/log.rs
*/
use lazy_static::lazy_static;
use std::sync::Mutex;
use rcgen::*;
use hudsucker::{
async_trait::async_trait,
certificate_authority::RcgenAuthority,
hyper::{Body, Request, Response},
*,
};
use std::fs;
use std::net::SocketAddr;
use registry::{Hive, Data, Security};
use rustls_pemfile as pemfile;
use tauri::http::Uri;
async fn shutdown_signal() {
tokio::signal::ctrl_c().await
.expect("Failed to install CTRL+C signal handler");
}
// Global ver for getting server address.
lazy_static! {
static ref SERVER: Mutex<String> = {
let m = "localhost:443".to_string();
Mutex::new(m)
};
}
#[derive(Clone)]
struct ProxyHandler;
#[tauri::command]
pub fn set_proxy_addr(addr: String) {
*SERVER.lock().unwrap() = addr;
}
#[async_trait]
impl HttpHandler for ProxyHandler {
async fn handle_request(&mut self,
_context: &HttpContext,
mut request: Request<Body>,
) -> RequestOrResponse {
// Get request URI.
let uri = request.uri().to_string();
let uri_path = request.uri().path();
// Only switch up if request is to the game servers.
if uri.contains("hoyoverse.com") || uri.contains("mihoyo.com") || uri.contains("yuanshen.com") {
// Create new URI.
let uri = format!("https://{}{}", SERVER.lock().unwrap(), uri_path).parse::<Uri>().unwrap();
// Set request URI to the new one.
*request.uri_mut() = uri;
}
RequestOrResponse::Request(request)
}
async fn handle_response(&mut self,
_context: &HttpContext,
response: Response<Body>,
) -> Response<Body> { response }
}
/**
* Starts an HTTP(S) proxy server.
*/
pub(crate) async fn create_proxy(proxy_port: u16) {
// Get the certificate and private key.
let mut private_key_bytes: &[u8] = include_bytes!("../resources/private-key.pem");
let mut ca_cert_bytes: &[u8] = include_bytes!("../resources/ca-certificate.pem");
// Parse the private key and certificate.
let private_key = rustls::PrivateKey(
pemfile::pkcs8_private_keys(&mut private_key_bytes)
.expect("Failed to parse private key")
.remove(0),
);
let ca_cert = rustls::Certificate(
pemfile::certs(&mut ca_cert_bytes)
.expect("Failed to parse CA certificate")
.remove(0),
);
// Create the certificate authority.
let authority = RcgenAuthority::new(private_key, ca_cert, 1_000)
.expect("Failed to create Certificate Authority");
// Create an instance of the proxy.
let proxy = ProxyBuilder::new()
.with_addr(SocketAddr::from(([0, 0, 0, 0], proxy_port)))
.with_rustls_client()
.with_ca(authority)
.with_http_handler(ProxyHandler)
.build();
// Start the proxy.
tokio::spawn(proxy.start(shutdown_signal()));
}
/**
* Connects to the local HTTP(S) proxy server.
*/
pub(crate) fn connect_to_proxy(proxy_port: u16) {
if cfg!(target_os = "windows") {
// Create 'ProxyServer' string.
let server_string: String = format!("http=127.0.0.1:{};https=127.0.0.1:{}", proxy_port, proxy_port);
// Fetch the 'Internet Settings' registry key.
let settings = Hive::CurrentUser.open(r"Software\Microsoft\Windows\CurrentVersion\Internet Settings", Security::Write).unwrap();
// Set registry values.
settings.set_value("ProxyServer", &Data::String(server_string.parse().unwrap())).unwrap();
settings.set_value("ProxyEnable", &Data::U32(1)).unwrap();
}
println!("Connected to the proxy.");
}
/**
* Disconnects from the local HTTP(S) proxy server.
*/
pub(crate) fn disconnect_from_proxy() {
if cfg!(target_os = "windows") {
// Fetch the 'Internet Settings' registry key.
let settings = Hive::CurrentUser.open(r"Software\Microsoft\Windows\CurrentVersion\Internet Settings", Security::Write).unwrap();
// Set registry values.
settings.set_value("ProxyEnable", &Data::U32(0)).unwrap();
}
println!("Disconnected from proxy.");
}
/*
* Generates a private key and certificate used by the certificate authority.
* Additionally installs the certificate and private key in the Root CA store.
* Source: https://github.com/zu1k/good-mitm/raw/master/src/ca/gen.rs
*/
pub(crate) fn generate_ca_files() {
let mut params = CertificateParams::default();
let mut details = DistinguishedName::new();
// Set certificate details.
details.push(DnType::CommonName, "Cultivation");
details.push(DnType::OrganizationName, "Grasscutters");
details.push(DnType::CountryName, "CN");
details.push(DnType::LocalityName, "CN");
// Set details in the parameter.
params.distinguished_name = details;
// Set other properties.
params.is_ca = IsCa::Ca(BasicConstraints::Unconstrained);
params.key_usages = vec![
KeyUsagePurpose::DigitalSignature,
KeyUsagePurpose::KeyCertSign,
KeyUsagePurpose::CrlSign,
];
// Create certificate.
let cert = Certificate::from_params(params).unwrap();
let cert_crt = cert.serialize_pem().unwrap();
// TODO: Save certificates.
// TODO: Install certificates.
}