#!/usr/bin/env python3
"""
安全测试模块演示脚本

展示安全测试的核心功能。
"""

from core.security import (
    SQLInjectionDetector,
    XSSDetector,
    CSRFProtector,
    InputSanitizer,
    PasswordStrengthChecker,
    SecurityHeaders,
    SecurityAuditLogger,
    SecurityScanner,
)


def demo_sql_injection_detection():
    """演示SQL注入检测"""
    print("\n" + "="*60)
    print("演示1: SQL注入检测")
    print("="*60)
    
    detector = SQLInjectionDetector()
    
    test_cases = [
        ("' OR '1'='1", True),
        ("'; DROP TABLE users; --", True),
        ("1' AND 1=1 --", True),
        ("normal_username", False),
        ("user@example.com", False),
    ]
    
    for input_str, expected in test_cases:
        result = detector.detect(input_str)
        status = "✅" if result.is_injection == expected else "❌"
        print(f"{status} 输入: {input_str[:30]:<30} -> 检测: {result.is_injection}")


def demo_xss_detection():
    """演示XSS检测"""
    print("\n" + "="*60)
    print("演示2: XSS检测")
    print("="*60)
    
    detector = XSSDetector()
    
    test_cases = [
        ("<script>alert('xss')</script>", True),
        ("<img src=x onerror=alert('xss')>", True),
        ("javascript:alert('xss')", True),
        ("<div>正常内容</div>", False),
        ("普通文本", False),
    ]
    
    for input_str, expected in test_cases:
        result = detector.detect(input_str)
        status = "✅" if result.is_xss == expected else "❌"
        print(f"{status} 输入: {input_str[:30]:<30} -> 检测: {result.is_xss}")


def demo_csrf_protection():
    """演示CSRF防护"""
    print("\n" + "="*60)
    print("演示3: CSRF防护")
    print("="*60)
    
    protector = CSRFProtector()
    
    # 生成Token
    token = protector.generate_token("user123")
    print(f"✅ 生成Token: {token[:30]}...")
    
    # 验证有效Token
    is_valid = protector.validate_token("user123", token)
    print(f"✅ 验证有效Token: {is_valid}")
    
    # 验证无效Token
    is_valid = protector.validate_token("user123", "invalid_token")
    print(f"✅ 验证无效Token: {is_valid}")


def demo_input_sanitization():
    """演示输入净化"""
    print("\n" + "="*60)
    print("演示4: 输入净化")
    print("="*60)
    
    sanitizer = InputSanitizer()
    
    test_cases = [
        "<script>alert('xss')</script>",
        "<p>正常段落</p>",
        "<img src=x onerror=alert('xss')>",
    ]
    
    for input_str in test_cases:
        result = sanitizer.sanitize_html(input_str)
        print(f"✅ 输入: {input_str[:35]:<35}")
        print(f"   输出: {result[:35]:<35}")


def demo_password_strength():
    """演示密码强度检查"""
    print("\n" + "="*60)
    print("演示5: 密码强度检查")
    print("="*60)
    
    checker = PasswordStrengthChecker()
    
    passwords = [
        "123",
        "password",
        "Password123",
        "P@ssw0rd!2024",
    ]
    
    for password in passwords:
        result = checker.check(password)
        print(f"✅ 密码: {password:<20} -> 强度: {result.strength:<10} 评分: {result.score}")


def demo_security_headers():
    """演示安全头部"""
    print("\n" + "="*60)
    print("演示6: 安全HTTP头部")
    print("="*60)
    
    headers = SecurityHeaders()
    security_headers = headers.get_headers()
    
    for key, value in security_headers.items():
        print(f"✅ {key}: {value}")


def demo_security_audit_log():
    """演示安全审计日志"""
    print("\n" + "="*60)
    print("演示7: 安全审计日志")
    print("="*60)
    
    logger = SecurityAuditLogger()
    
    # 记录安全事件
    logger.log_event(
        event_type="SQL_INJECTION_ATTEMPT",
        source_ip="192.168.1.1",
        details={"input": "' OR '1'='1"}
    )
    logger.log_event(
        event_type="XSS_ATTEMPT",
        source_ip="192.168.1.2",
        details={"input": "<script>alert('xss')</script>"}
    )
    print("✅ 记录2个安全事件")
    
    # 查询安全事件
    events = logger.get_events()
    print(f"✅ 事件数量: {len(events)}")
    
    # 获取统计
    stats = logger.get_stats()
    print(f"✅ 统计: {stats}")


def demo_security_scanner():
    """演示综合安全扫描"""
    print("\n" + "="*60)
    print("演示8: 综合安全扫描")
    print("="*60)
    
    scanner = SecurityScanner()
    
    test_data = {
        "username": "' OR '1'='1",
        "comment": "<script>alert('xss')</script>",
        "email": "test@example.com",
    }
    
    report = scanner.scan(test_data)
    print(f"✅ 扫描数据项: {report.total_scanned}")
    print(f"✅ 发现威胁: {len(report.threats)}")
    print(f"✅ 扫描耗时: {report.scan_time:.4f}s")
    
    for threat in report.threats:
        print(f"   - {threat.threat_type}: {threat.level.value}")


def main():
    """主函数"""
    print("\n" + "="*60)
    print("安全测试模块演示")
    print("="*60)
    
    demo_sql_injection_detection()
    demo_xss_detection()
    demo_csrf_protection()
    demo_input_sanitization()
    demo_password_strength()
    demo_security_headers()
    demo_security_audit_log()
    demo_security_scanner()
    
    print("\n" + "="*60)
    print("✅ 所有演示完成!")
    print("="*60)


if __name__ == "__main__":
    main()