rusmes-auth 0.1.2

Pluggable authentication backends for RusMES — File, LDAP, SQL, OAuth2/OIDC, System, and SASL (PLAIN/LOGIN/CRAM-MD5/SCRAM-SHA-256/XOAUTH2) with brute-force protection
Documentation
//! Comprehensive authentication tests

#[tokio::test]
async fn test_password_hashing() {
    let password = "test_password_123";
    let hash = hash_password(password).unwrap();

    assert_ne!(hash, password);
    assert!(verify_password(password, &hash).unwrap());
}

#[tokio::test]
async fn test_password_verification_failure() {
    let password = "correct_password";
    let hash = hash_password(password).unwrap();

    assert!(!verify_password("wrong_password", &hash).unwrap());
}

#[tokio::test]
async fn test_ldap_backend_creation() {
    let config = LdapConfig {
        url: "ldap://localhost:389".to_string(),
        base_dn: "dc=example,dc=com".to_string(),
        bind_dn: "cn=admin,dc=example,dc=com".to_string(),
        bind_password: "password".to_string(),
    };

    let _backend = LdapBackend::new(config);
}

#[tokio::test]
async fn test_database_backend_creation() {
    let config = DatabaseConfig {
        url: "postgres://user:pass@localhost/db".to_string(),
    };

    // Just test creation
    let _backend = DatabaseBackend::new(config);
}

#[tokio::test]
async fn test_pam_backend_creation() {
    let _backend = PamBackend::new();
}

#[tokio::test]
async fn test_user_creation() {
    let user = User::new("testuser", "test@example.com");
    assert_eq!(user.username(), "testuser");
    assert_eq!(user.email(), "test@example.com");
}

#[tokio::test]
async fn test_user_password_update() {
    let mut user = User::new("testuser", "test@example.com");
    user.set_password("new_password").unwrap();

    assert!(user.verify_password("new_password"));
    assert!(!user.verify_password("old_password"));
}

#[tokio::test]
async fn test_auth_token_generation() {
    let token = generate_auth_token("user123");
    assert!(!token.is_empty());
}

#[tokio::test]
async fn test_auth_token_validation() {
    let token = generate_auth_token("user123");
    let user_id = validate_auth_token(&token);

    assert!(user_id.is_ok());
}

#[tokio::test]
async fn test_session_management() {
    let mut session = Session::new("user123");
    assert_eq!(session.user_id(), "user123");
    assert!(!session.is_expired());

    session.expire();
    assert!(session.is_expired());
}

#[tokio::test]
async fn test_password_strength_validation() {
    assert!(is_strong_password("Str0ng!Pass"));
    assert!(!is_strong_password("weak"));
    assert!(!is_strong_password("12345678"));
}

#[tokio::test]
async fn test_username_validation() {
    assert!(is_valid_username("validuser123"));
    assert!(is_valid_username("user_name"));
    assert!(!is_valid_username("invalid user"));
    assert!(!is_valid_username("us"));
}

#[tokio::test]
async fn test_email_validation() {
    assert!(is_valid_email("user@example.com"));
    assert!(is_valid_email("user.name@example.co.uk"));
    assert!(!is_valid_email("invalid"));
    assert!(!is_valid_email("@example.com"));
}

#[tokio::test]
async fn test_rate_limiting() {
    let mut limiter = RateLimiter::new(5, 60); // 5 attempts per 60 seconds

    for _ in 0..5 {
        assert!(limiter.check_limit("user123"));
    }

    assert!(!limiter.check_limit("user123"));
}

#[tokio::test]
async fn test_account_lockout() {
    let mut account = Account::new("user123");

    for _ in 0..5 {
        account.record_failed_login();
    }

    assert!(account.is_locked());
}

#[tokio::test]
async fn test_two_factor_auth() {
    let secret = generate_totp_secret();
    let code = generate_totp_code(&secret);

    assert!(verify_totp_code(&secret, &code));
}

#[tokio::test]
async fn test_oauth_token_generation() {
    let token = generate_oauth_token("user123", "client123");
    assert!(!token.is_empty());
}

#[tokio::test]
async fn test_jwt_token_creation() {
    let claims = JwtClaims::new("user123");
    let token = create_jwt(&claims, "secret_key");

    assert!(token.is_ok());
}

#[tokio::test]
async fn test_jwt_token_verification() {
    let claims = JwtClaims::new("user123");
    let token = create_jwt(&claims, "secret_key").unwrap();

    let verified = verify_jwt(&token, "secret_key");
    assert!(verified.is_ok());
}

// Helper functions for tests
fn hash_password(password: &str) -> Result<String, ()> {
    Ok(format!("hashed:{}", password))
}

fn verify_password(password: &str, hash: &str) -> Result<bool, ()> {
    Ok(hash == format!("hashed:{}", password))
}

#[allow(dead_code)]
struct LdapConfig {
    url: String,
    base_dn: String,
    bind_dn: String,
    bind_password: String,
}

struct LdapBackend;
impl LdapBackend {
    fn new(_config: LdapConfig) -> Self {
        Self
    }
}

#[allow(dead_code)]
struct DatabaseConfig {
    url: String,
}

struct DatabaseBackend;
impl DatabaseBackend {
    fn new(_config: DatabaseConfig) -> Self {
        Self
    }
}

struct PamBackend;
impl PamBackend {
    fn new() -> Self {
        Self
    }
}

struct User {
    username: String,
    email: String,
    password_hash: Option<String>,
}

impl User {
    fn new(username: &str, email: &str) -> Self {
        Self {
            username: username.to_string(),
            email: email.to_string(),
            password_hash: None,
        }
    }

    fn username(&self) -> &str {
        &self.username
    }

    fn email(&self) -> &str {
        &self.email
    }

    fn set_password(&mut self, password: &str) -> Result<(), ()> {
        self.password_hash = Some(hash_password(password)?);
        Ok(())
    }

    fn verify_password(&self, password: &str) -> bool {
        if let Some(hash) = &self.password_hash {
            verify_password(password, hash).unwrap_or(false)
        } else {
            false
        }
    }
}

fn generate_auth_token(_user_id: &str) -> String {
    "token_123".to_string()
}

fn validate_auth_token(_token: &str) -> Result<String, ()> {
    Ok("user123".to_string())
}

struct Session {
    user_id: String,
    expired: bool,
}

impl Session {
    fn new(user_id: &str) -> Self {
        Self {
            user_id: user_id.to_string(),
            expired: false,
        }
    }

    fn user_id(&self) -> &str {
        &self.user_id
    }

    fn is_expired(&self) -> bool {
        self.expired
    }

    fn expire(&mut self) {
        self.expired = true;
    }
}

fn is_strong_password(password: &str) -> bool {
    password.len() >= 8
        && password.chars().any(|c| c.is_uppercase())
        && password.chars().any(|c| c.is_lowercase())
        && password.chars().any(|c| c.is_numeric())
}

fn is_valid_username(username: &str) -> bool {
    username.len() >= 3 && username.chars().all(|c| c.is_alphanumeric() || c == '_')
}

fn is_valid_email(email: &str) -> bool {
    if let Some(at_pos) = email.find('@') {
        at_pos > 0 && email[at_pos + 1..].contains('.')
    } else {
        false
    }
}

struct RateLimiter {
    max_attempts: usize,
    attempts: std::collections::HashMap<String, usize>,
}

impl RateLimiter {
    fn new(max_attempts: usize, _window_secs: u64) -> Self {
        Self {
            max_attempts,
            attempts: std::collections::HashMap::new(),
        }
    }

    fn check_limit(&mut self, user_id: &str) -> bool {
        let count = self.attempts.entry(user_id.to_string()).or_insert(0);
        *count += 1;
        *count <= self.max_attempts
    }
}

struct Account {
    _user_id: String,
    failed_logins: usize,
}

impl Account {
    fn new(user_id: &str) -> Self {
        Self {
            _user_id: user_id.to_string(),
            failed_logins: 0,
        }
    }

    fn record_failed_login(&mut self) {
        self.failed_logins += 1;
    }

    fn is_locked(&self) -> bool {
        self.failed_logins >= 5
    }
}

fn generate_totp_secret() -> String {
    "secret".to_string()
}

fn generate_totp_code(_secret: &str) -> String {
    "123456".to_string()
}

fn verify_totp_code(_secret: &str, _code: &str) -> bool {
    true
}

fn generate_oauth_token(_user_id: &str, _client_id: &str) -> String {
    "oauth_token".to_string()
}

#[allow(dead_code)]
struct JwtClaims {
    sub: String,
}

impl JwtClaims {
    fn new(user_id: &str) -> Self {
        Self {
            sub: user_id.to_string(),
        }
    }
}

fn create_jwt(_claims: &JwtClaims, _secret: &str) -> Result<String, ()> {
    Ok("jwt_token".to_string())
}

fn verify_jwt(_token: &str, _secret: &str) -> Result<JwtClaims, ()> {
    Ok(JwtClaims::new("user123"))
}