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+ "zeroize_derive",
+]
+
+[[package]]
+name = "zeroize_derive"
+version = "1.0.1"
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 ]
diff --git a/Cargo.toml b/Cargo.toml
index b71ab37..acd79a2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,3 +9,10 @@ edition = "2018"
 [dependencies]
 hmac-sha1 = "^0.1"
 base64 = "0.13.0"
+text_io = "0.1.8"
+rpassword = "5.0"
+reqwest = { version = "0.11", features = ["blocking", "json", "cookies", "gzip"] }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+rsa = "0.3"
+rand = "0.7.3" # rsa is not compatible with rand 0.8: https://github.com/RustCrypto/RSA/issues/81
diff --git a/src/main.rs b/src/main.rs
index 1bbbf2e..a04b62a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,11 +1,29 @@
+extern crate rpassword;
+use io::Write;
 use steamguard_cli::*;
+use ::std::*;
+use text_io::read;
+
+mod steamapi;
 
 fn main() {
 	println!("Hello, world!");
 
+	let server_time = steamapi::get_server_time();
+	println!("server time: {}", server_time);
+
 	let mut account = SteamGuardAccount::new();
 	account.shared_secret = parse_shared_secret(String::from("K5I0Fmm+sN0yF41vIslTVm+0nPE="));
 
-	let code = account.generate_code(93847539487i64);
-	println!("{}", code)
+	let code = account.generate_code(server_time);
+	println!("{}", code);
+
+	print!("Username: ");
+	let _ = std::io::stdout().flush();
+	let username: String = read!("{}\n");
+	let password = rpassword::prompt_password_stdout("Password: ").unwrap();
+	// println!("{}:{}", username, password);
+	let login = steamapi::UserLogin::new(username, password);
+	let result = login.login();
+	println!("result: {:?}", result);
 }
diff --git a/src/steamapi.rs b/src/steamapi.rs
new file mode 100644
index 0000000..fd9e41a
--- /dev/null
+++ b/src/steamapi.rs
@@ -0,0 +1,136 @@
+use std::collections::HashMap;
+use reqwest::{Url, cookie::CookieStore, header::COOKIE, header::USER_AGENT};
+use rsa::{PublicKey, RSAPublicKey};
+use std::time::{SystemTime, UNIX_EPOCH};
+use serde::{Serialize, Deserialize};
+use rand::rngs::OsRng;
+
+#[derive(Debug, Deserialize)]
+struct LoginResponse {
+	success: bool,
+	login_complete: bool,
+	oauth_data_string: String,
+}
+
+#[derive(Debug, Deserialize)]
+struct RsaResponse {
+	success: bool,
+	publickey_exp: String,
+	publickey_mod: String,
+	timestamp: String,
+	token_gid: String,
+}
+
+#[derive(Debug)]
+pub enum LoginResult {
+	Ok,
+	BadRSA,
+	BadCredentials,
+	NeedCaptcha,
+	Need2FA,
+	NeedEmail,
+	OtherFailure,
+}
+
+#[derive(Debug)]
+pub struct UserLogin {
+	pub username: String,
+	pub password: String,
+	pub captcha_text: String,
+	pub twofactor_code: String,
+	pub email_code: String,
+
+	cookies: reqwest::cookie::Jar,
+	// cookies: Arc<reqwest::cookie::Jar>,
+	client: reqwest::blocking::Client,
+}
+
+impl UserLogin {
+	pub fn new(username: String, password: String) -> UserLogin {
+		return UserLogin {
+			username,
+			password,
+			captcha_text: String::from(""),
+			twofactor_code: String::from(""),
+			email_code: String::from(""),
+			cookies: reqwest::cookie::Jar::default(),
+			// cookies: Arc::<reqwest::cookie::Jar>::new(reqwest::cookie::Jar::default()),
+			client: reqwest::blocking::ClientBuilder::new()
+				.cookie_store(true)
+				.build()
+				.unwrap(),
+		}
+	}
+
+	fn update_session(&self) {
+		let url = "https://steamcommunity.com".parse::<Url>().unwrap();
+		self.cookies.add_cookie_str("mobileClientVersion=0 (2.1.3)", &url);
+		self.cookies.add_cookie_str("mobileClient=android", &url);
+		self.cookies.add_cookie_str("Steam_Language=english", &url);
+
+		let _ = self.client
+			.get("https://steamcommunity.com/login?oauth_client_id=DE45CD61&oauth_scope=read_profile%20write_profile%20read_client%20write_client".parse::<Url>().unwrap())
+			.header("X-Requested-With", "com.valvesoftware.android.steam.community")
+			.header(USER_AGENT, "Mozilla/5.0 (Linux; U; Android 4.1.1; en-us; Google Nexus 4 - 4.1.1 - API 16 - 768x1280 Build/JRO03S) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30")
+			// .header(COOKIE, "mobileClientVersion=0 (2.1.3)")
+			// .header(COOKIE, "mobileClient=android")
+			// .header(COOKIE, "Steam_Language=english")
+			.header(COOKIE, self.cookies.cookies(&url).unwrap())
+			.send();
+	}
+
+	pub fn login(&self) -> LoginResult {
+		let url = "https://steamcommunity.com".parse::<Url>().unwrap();
+		if self.cookies.cookies(&url) == Option::None {
+			self.update_session()
+		}
+
+		let mut params = HashMap::new();
+		params.insert("donotcache", format!("{}", SystemTime::now().duration_since(UNIX_EPOCH).unwrap().as_secs() * 1000));
+		params.insert("username", self.username.clone());
+		let resp = self.client
+			.post("https://steamcommunity.com/login/getrsakey")
+			.form(&params)
+			.send()
+			.unwrap();
+
+		let encrypted_password: String;
+		match resp.json::<RsaResponse>() {
+			Ok(rsa_resp) => {
+				// println!("rsa: {:?}", rsa_resp);
+				let rsa_exponent = rsa::BigUint::parse_bytes(rsa_resp.publickey_exp.as_bytes(), 16).unwrap();
+				let rsa_modulus = rsa::BigUint::parse_bytes(rsa_resp.publickey_mod.as_bytes(), 16).unwrap();
+				let public_key = RSAPublicKey::new(rsa_modulus, rsa_exponent).unwrap();
+				// println!("public key: {:?}", public_key);
+				let mut rng = OsRng;
+				let padding = rsa::PaddingScheme::new_pkcs1v15_encrypt();
+				encrypted_password = base64::encode(public_key.encrypt(&mut rng, padding, self.password.as_bytes()).unwrap());
+				println!("encrypted_password: {:?}", encrypted_password);
+			}
+			Err(error) => {
+				println!("rsa error: {:?}", error);
+				return LoginResult::BadRSA
+			}
+		}
+
+		let mut params = HashMap::new();
+		params.insert("donotcache", format!("{}", SystemTime::now().duration_since(UNIX_EPOCH).unwrap().as_secs() * 1000));
+		params.insert("username", self.username.clone());
+
+		return LoginResult::OtherFailure
+	}
+}
+
+
+pub fn get_server_time() -> i64 {
+	let client = reqwest::blocking::Client::new();
+	let resp = client
+		.post("https://api.steampowered.com/ITwoFactorService/QueryTime/v0001")
+		.body("steamid=0")
+		.send();
+	let value: serde_json::Value = resp.unwrap().json().unwrap();
+
+	// println!("{}", value["response"]);
+
+	return String::from(value["response"]["server_time"].as_str().unwrap()).parse().unwrap();
+}