auth-framework 0.4.2

A comprehensive, production-ready authentication and authorization framework for Rust applications
Documentation
//! Security vulnerability detection tests
//!
//! These tests would have caught the critical security vulnerabilities
//! discovered in the comprehensive audit.

use crate::errors::AuthError;
use crate::server::oauth2::{OAuth2Server, TokenRequest};
use crate::storage::MemoryStorage;

#[tokio::test]
async fn test_client_secret_validation_required() {
    let storage = MemoryStorage::new();
    let oauth2_server = OAuth2Server::new(storage, Default::default())
        .await
        .unwrap();

    // Register a confidential client
    let client_id = "test_client";
    let client_secret = "secret123";

    // Try token exchange with wrong client secret
    let request = TokenRequest {
        grant_type: "authorization_code".to_string(),
        client_id: client_id.to_string(),
        client_secret: Some("wrong_secret".to_string()),
        code: Some("valid_code".to_string()),
        redirect_uri: Some("https://example.com/callback".to_string()),
        ..Default::default()
    };

    // This SHOULD fail but currently doesn't due to TODO at line 807
    let result = oauth2_server.token_exchange(request).await;
    assert!(
        result.is_err(),
        "Token exchange should fail with invalid client secret - CRITICAL SECURITY BUG!"
    );

    if let Err(AuthError::AuthMethod { method, message }) = result {
        assert_eq!(method, "oauth2");
        assert!(message.contains("client_secret") || message.contains("authentication"));
    } else {
        panic!("Should return proper authentication error");
    }
}

#[tokio::test]
async fn test_refresh_token_validation_required() {
    let storage = MemoryStorage::new();
    let oauth2_server = OAuth2Server::new(storage, Default::default())
        .await
        .unwrap();

    // Try refresh with completely invalid token
    let request = TokenRequest {
        grant_type: "refresh_token".to_string(),
        client_id: "test_client".to_string(),
        refresh_token: Some("completely_invalid_token".to_string()),
        ..Default::default()
    };

    // This SHOULD fail but currently doesn't due to TODO at line 771
    let result = oauth2_server.token_exchange(request).await;
    assert!(
        result.is_err(),
        "Refresh token exchange should fail with invalid token - CRITICAL SECURITY BUG!"
    );
}

#[tokio::test]
async fn test_user_identity_isolation() {
    let storage = MemoryStorage::new();
    let oauth2_server = OAuth2Server::new(storage, Default::default())
        .await
        .unwrap();

    // This test would expose the hardcoded "user123" issue at line 660
    // In a proper implementation, different users should get different user IDs
    // But currently ALL authorization codes get "user123" as user_id

    // Create authorization requests for different users
    // Note: This test can't run properly because user context isn't properly implemented
    // but it shows what SHOULD be tested

    println!(
        "WARNING: Cannot test user identity isolation because user context is hardcoded to 'user123'"
    );
    println!("This is a CRITICAL SECURITY VULNERABILITY at src/server/oauth2.rs:660");
}

#[tokio::test]
async fn test_scope_escalation_prevention() {
    let storage = MemoryStorage::new();
    let oauth2_server = OAuth2Server::new(storage, Default::default())
        .await
        .unwrap();

    // This test would expose the hardcoded scopes issue at line 774
    // Currently ALL refresh tokens get "read" and "write" scopes regardless of original grant

    println!("WARNING: Cannot test scope escalation prevention because scopes are hardcoded");
    println!("This is a CRITICAL SECURITY VULNERABILITY at src/server/oauth2.rs:774");
    println!(
        "All refresh tokens get 'read' and 'write' scopes regardless of original authorization"
    );
}

#[tokio::test]
async fn test_cross_client_token_isolation() {
    let storage = MemoryStorage::new();
    let oauth2_server = OAuth2Server::new(storage, Default::default())
        .await
        .unwrap();

    // Register two different clients
    let client_a = "client_a";
    let client_b = "client_b";

    // This test would verify that tokens issued to client_a cannot be used by client_b
    // But due to missing client secret validation, any client can impersonate any other

    println!(
        "WARNING: Cannot test cross-client isolation because client secret validation is missing"
    );
    println!("This is a CRITICAL SECURITY VULNERABILITY at src/server/oauth2.rs:807");
}

#[test]
fn test_no_hardcoded_credentials_in_source() {
    // This test searches for potential hardcoded credentials
    let hardcoded_patterns = vec![
        "password=\"",
        "secret=\"",
        "key=\"",
        "token=\"",
        "user123", // This should be caught!
    ];

    let source_content = std::fs::read_to_string("src/server/oauth2.rs").unwrap();

    for pattern in hardcoded_patterns {
        if source_content.contains(pattern) {
            if pattern == "user123" {
                panic!("Found hardcoded user ID 'user123' in oauth2.rs - CRITICAL SECURITY BUG!");
            } else {
                println!(
                    "WARNING: Found potential hardcoded credential pattern: {}",
                    pattern
                );
            }
        }
    }
}

#[test]
fn test_no_security_todos_in_critical_paths() {
    let security_critical_files = vec![
        "src/server/oauth2.rs",
        "src/server/oidc.rs",
        "src/server/client_registry.rs",
        "src/auth.rs",
        "src/session.rs",
    ];

    let critical_todo_patterns = vec![
        "TODO: Validate",
        "TODO: Implement",
        "TODO: Get from",
        "TODO: Load",
        "TODO: Store",
    ];

    for file in security_critical_files {
        if let Ok(content) = std::fs::read_to_string(file) {
            for pattern in &critical_todo_patterns {
                if content.contains(pattern) {
                    println!(
                        "SECURITY WARNING: Found critical TODO in {}: {}",
                        file, pattern
                    );
                }
            }

            // Count total TODOs
            let todo_count = content.matches("TODO").count();
            if todo_count > 0 {
                println!(
                    "SECURITY WARNING: {} contains {} TODO comments",
                    file, todo_count
                );
            }
        }
    }
}

#[test]
fn test_authentication_error_types() {
    // Verify that proper error types exist for authentication failures
    use crate::errors::AuthError;

    // These error types should exist and be used properly
    let _client_auth_error = AuthError::auth_method("oauth2", "Invalid client credentials");
    let _token_error = AuthError::auth_method("oauth2", "Invalid token");
    let _scope_error = AuthError::auth_method("oauth2", "Insufficient scope");

    // But they're not being used in the TODO sections!
}

/// Test that would verify session invalidation works
#[tokio::test]
async fn test_session_invalidation_on_logout() {
    // This test can't be implemented properly because logout functionality
    // has TODOs at src/server/oidc.rs:226-227

    println!("WARNING: Cannot test session invalidation because logout is not implemented");
    println!("TODOs found at src/server/oidc.rs:226-227");
    println!("Sessions will persist after logout - SECURITY VULNERABILITY");
}

/// Test that would verify certificate functionality
#[test]
fn test_x509_certificate_generation() {
    // This test can't be implemented because X.509 functionality is completely stubbed
    // See TODOs in src/server/x509_signing.rs

    println!("WARNING: X.509 certificate functionality is completely unimplemented");
    println!("7 TODOs found in src/server/x509_signing.rs");
    println!("PKI functionality will not work - SECURITY VULNERABILITY");
}

mod integration_security_tests {
    use super::*;

    /// Integration test that would verify end-to-end OAuth2 flow security
    #[tokio::test]
    async fn test_complete_oauth2_flow_security() {
        // This test would verify:
        // 1. Proper client authentication
        // 2. User identity isolation
        // 3. Scope enforcement
        // 4. Token validation
        // 5. Session management

        // But all of these have critical TODOs that prevent proper testing

        println!("CRITICAL: Complete OAuth2 flow cannot be properly tested due to:");
        println!("- Missing client secret validation (oauth2.rs:807)");
        println!("- Hardcoded user ID (oauth2.rs:660)");
        println!("- Missing refresh token validation (oauth2.rs:771)");
        println!("- Hardcoded scopes (oauth2.rs:774)");
        println!("- Missing user ID extraction (oauth2.rs:780)");

        // This is a CRITICAL SECURITY FAILURE
        assert!(
            false,
            "OAuth2 security implementation is fundamentally broken"
        );
    }
}