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167use rand::Rng;
#[cfg(any(target_os = "linux", target_os = "macos"))]
use std::os::unix::fs::PermissionsExt;
use std::process::Command;
use thirtyfour::{DesiredCapabilities, WebDriver};
/// Fetches a new ChromeDriver executable and patches it to prevent detection.
/// Returns a WebDriver instance.
pub async fn chrome() -> Result<WebDriver, Box<dyn std::error::Error>> {
let os = std::env::consts::OS;
if std::path::Path::new("chromedriver").exists() {
println!("ChromeDriver already exists!");
} else {
println!("ChromeDriver does not exist! Fetching...");
let client = reqwest::Client::new();
fetch_chromedriver(&client).await.unwrap();
}
let chromedriver_executable = match os {
"linux" => "chromedriver_PATCHED",
"macos" => "chromedriver_PATCHED",
"windows" => "chromedriver_PATCHED.exe",
_ => panic!("Unsupported OS!"),
};
match !std::path::Path::new(chromedriver_executable).exists() {
true => {
println!("Starting ChromeDriver executable patch...");
let file_name = if cfg!(windows) {
"chromedriver.exe"
} else {
"chromedriver"
};
let f = std::fs::read(file_name).unwrap();
let mut new_chromedriver_bytes = f.clone();
let mut total_cdc = String::from("");
let mut cdc_pos_list = Vec::new();
let mut is_cdc_present = false;
let mut patch_ct = 0;
for i in 0..f.len() - 3 {
if "cdc_"
== format!(
"{}{}{}{}",
f[i] as char,
f[i + 1] as char,
f[i + 2] as char,
f[i + 3] as char
)
.as_str()
{
for x in i..i + 22 {
total_cdc.push_str(&(f[x] as char).to_string());
}
is_cdc_present = true;
cdc_pos_list.push(i);
total_cdc = String::from("");
}
}
match is_cdc_present {
true => println!("Found cdcs!"),
false => println!("No cdcs were found!"),
}
let get_random_char = || -> char {
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
.chars()
.collect::<Vec<char>>()[rand::thread_rng().gen_range(0..48)]
};
for i in cdc_pos_list {
for x in i..i + 22 {
new_chromedriver_bytes[x] = get_random_char() as u8;
}
patch_ct += 1;
}
println!("Patched {} cdcs!", patch_ct);
println!("Starting to write to binary file...");
let _file = std::fs::File::create(chromedriver_executable).unwrap();
match std::fs::write(chromedriver_executable, new_chromedriver_bytes) {
Ok(_res) => {
println!("Successfully wrote patched executable to 'chromedriver_PATCHED'!",)
}
Err(err) => println!("Error when writing patch to file! Error: {}", err),
};
}
false => {
println!("Detected patched chromedriver executable!");
}
}
#[cfg(any(target_os = "linux", target_os = "macos"))]
{
let mut perms = std::fs::metadata(chromedriver_executable)
.unwrap()
.permissions();
perms.set_mode(0o755);
std::fs::set_permissions(chromedriver_executable, perms).unwrap();
}
println!("Starting chromedriver...");
let port: usize = rand::thread_rng().gen_range(2000..5000);
Command::new(format!("./{}", chromedriver_executable))
.arg(format!("--port={}", port))
.spawn()
.expect("Failed to start chromedriver!");
let mut caps = DesiredCapabilities::chrome();
caps.set_no_sandbox().unwrap();
caps.set_disable_dev_shm_usage().unwrap();
caps.add_chrome_arg("--disable-blink-features=AutomationControlled")
.unwrap();
caps.add_chrome_arg("window-size=1920,1080").unwrap();
caps.add_chrome_arg("user-agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36").unwrap();
caps.add_chrome_arg("disable-infobars").unwrap();
caps.add_chrome_option("excludeSwitches", ["enable-automation"])
.unwrap();
let mut driver = None;
let mut attempt = 0;
while driver.is_none() && attempt < 20 {
attempt += 1;
match WebDriver::new(&format!("http://localhost:{}", port), caps.clone()).await {
Ok(d) => driver = Some(d),
Err(_) => std::thread::sleep(std::time::Duration::from_millis(250)),
}
}
let driver = driver.unwrap();
Ok(driver)
}
async fn fetch_chromedriver(client: &reqwest::Client) -> Result<(), Box<dyn std::error::Error>> {
let os = std::env::consts::OS;
let resp = client
.get("https://chromedriver.storage.googleapis.com/LATEST_RELEASE")
.send()
.await?;
let body = resp.text().await?;
let url = match os {
"linux" => format!(
"https://chromedriver.storage.googleapis.com/{}/chromedriver_linux64.zip",
body
),
"windows" => format!(
"https://chromedriver.storage.googleapis.com/{}/chromedriver_win32.zip",
body
),
"macos" => format!(
"https://chromedriver.storage.googleapis.com/{}/chromedriver_mac64.zip",
body
),
_ => panic!("Unsupported OS!"),
};
let resp = client.get(url).send().await?;
let body = resp.bytes().await?;
let mut archive = zip::ZipArchive::new(std::io::Cursor::new(body))?;
for i in 0..archive.len() {
let mut file = archive.by_index(i)?;
let outpath = file.mangled_name();
if (&*file.name()).ends_with('/') {
std::fs::create_dir_all(&outpath)?;
} else {
if let Some(p) = outpath.parent() {
if !p.exists() {
std::fs::create_dir_all(&p)?;
}
}
let mut outfile = std::fs::File::create(&outpath)?;
std::io::copy(&mut file, &mut outfile)?;
}
}
Ok(())
}