💎 Database Security in TuskLang - Ruby Edition

"We don't bow to any king" - Securing Data with Ruby Vigilance

Database security in TuskLang provides comprehensive protection against SQL injection, unauthorized access, data breaches, and other security threats. In Ruby, this integrates seamlessly with Rails security features, provides advanced encryption, and offers robust access control mechanisms.

🚀 Basic Security Features

SQL Injection Prevention

require 'tusklang'
TuskLang configuration for SQL injection prevention
tsk_content = <<~TSK
  [security]
  # Parameterized queries for injection prevention
  secure_user_query: @db.query("SELECT * FROM users WHERE id = ? AND active = ?", [
      @sanitize.integer(@request.user_id),
      @sanitize.boolean(@request.active)
  ])
      .validateInput()
      .escapeOutput()
  
  # Secure search with parameter binding
  secure_search: @db.query("""
      SELECT * FROM products 
      WHERE name LIKE ? 
      AND category_id = ? 
      AND price BETWEEN ? AND ?
  """, [
      "%#{@sanitize.string(@request.search_term)}%",
      @sanitize.integer(@request.category_id),
      @sanitize.float(@request.min_price),
      @sanitize.float(@request.max_price)
  ])
      .validateInput()
      .escapeOutput()
  
  # Secure dynamic query building
  secure_dynamic_query: @db.buildQuery("SELECT * FROM users")
      .where("active = ?", [@sanitize.boolean(@request.active)])
      .whereIf(@request.role, "role = ?", [@sanitize.string(@request.role)])
      .whereIf(@request.created_after, "created_at > ?", [@sanitize.date(@request.created_after)])
      .orderBy("created_at DESC")
      .limit(@sanitize.integer(@request.limit, 100))
TSK
Ruby implementation
class SecureQueryManager
  include TuskLang::Secure
  
  def execute_secure_queries
    tusk_config = Rails.application.config.tusk_config
    
    # Execute secure queries
    user = tusk_config.execute_secure_query('secure_user_query', {
      user_id: 1,
      active: true
    })
    
    search_results = tusk_config.execute_secure_query('secure_search', {
      search_term: 'ruby',
      category_id: 1,
      min_price: 10.00,
      max_price: 100.00
    })
    
    dynamic_results = tusk_config.execute_secure_query('secure_dynamic_query', {
      active: true,
      role: 'admin',
      created_after: '2024-01-01',
      limit: 50
    })
    
    puts "Retrieved secure user: #{user[:name]}"
    puts "Found #{search_results.length} secure search results"
    puts "Retrieved #{dynamic_results.length} dynamic results"
  end
end

Input Validation and Sanitization

TuskLang configuration with input validation
tsk_content = <<~TSK
  [input_validation]
  # Comprehensive input validation
  validated_user_creation: @db.query("""
      INSERT INTO users (name, email, password, role, created_at)
      VALUES (?, ?, ?, ?, ?)
  """, [
      @validate.required(@sanitize.string(@request.name, {max_length: 100})),
      @validate.email(@sanitize.email(@request.email)),
      @encrypt(@validate.password(@request.password, {min_length: 8}), "bcrypt"),
      @validate.choice(@request.role, ["user", "admin"], "user"),
      @now()
  ])
      .validateInput()
      .logSecurityEvent("user_creation")
  
  # Advanced validation with custom rules
  advanced_validation: @db.query("""
      UPDATE users 
      SET name = ?, email = ?, updated_at = ?
      WHERE id = ?
  """, [
      @validate.custom(@request.name, (value) => {
          if (value.length < 2) throw "Name too short"
          if (value.length > 100) throw "Name too long"
          if (!/^[a-zA-Z\s]+$/.test(value)) throw "Invalid name format"
          return @sanitize.string(value)
      }),
      @validate.email(@sanitize.email(@request.email)),
      @now(),
      @validate.integer(@request.user_id)
  ])
      .validateInput()
      .requireAuthentication()
      .requireAuthorization("update_user")
TSK
Ruby implementation with validation
class InputValidator
  include TuskLang::Secure
  
  def create_validated_user(user_data)
    tusk_config = Rails.application.config.tusk_config
    
    # Validate and create user
    result = tusk_config.execute_validated_query('validated_user_creation', {
      name: user_data[:name],
      email: user_data[:email],
      password: user_data[:password],
      role: user_data[:role]
    })
    
    puts "Created validated user: #{result[:id]}"
  end
  
  def update_user_with_validation(user_id, user_data)
    tusk_config = Rails.application.config.tusk_config
    
    # Update with advanced validation
    result = tusk_config.execute_validated_query('advanced_validation', {
      user_id: user_id,
      name: user_data[:name],
      email: user_data[:email]
    })
    
    puts "Updated user with validation: #{result[:affected_rows]} rows"
  end
end

🔐 Advanced Security Features

Encryption and Hashing

TuskLang configuration for encryption
tsk_content = <<~TSK
  [encryption]
  # Sensitive data encryption
  encrypt_sensitive_data: @db.query("""
      INSERT INTO users (name, email, password, ssn, credit_card)
      VALUES (?, ?, ?, ?, ?)
  """, [
      @sanitize.string(@request.name),
      @sanitize.email(@request.email),
      @encrypt(@request.password, "bcrypt", {cost: 12}),
      @encrypt(@request.ssn, "AES-256-GCM", {key: @env("ENCRYPTION_KEY")}),
      @encrypt(@request.credit_card, "AES-256-GCM", {key: @env("ENCRYPTION_KEY")})
  ])
      .validateInput()
      .logSecurityEvent("sensitive_data_creation")
  
  # Decrypt sensitive data
  decrypt_sensitive_data: @db.query("""
      SELECT 
          name,
          email,
          @decrypt(ssn, "AES-256-GCM", {key: @env("ENCRYPTION_KEY")}) as ssn,
          @decrypt(credit_card, "AES-256-GCM", {key: @env("ENCRYPTION_KEY")}) as credit_card
      FROM users 
      WHERE id = ?
  """, [@validate.integer(@request.user_id)])
      .requireAuthentication()
      .requireAuthorization("view_sensitive_data")
      .auditAccess()
  
  # Hash verification
  verify_password: @db.query("""
      SELECT id, password 
      FROM users 
      WHERE email = ?
  """, [@sanitize.email(@request.email)])
      .then((user) => {
          if (@verifyHash(@request.password, user.password, "bcrypt")) {
              return user
          } else {
              throw "Invalid password"
          }
      })
TSK
Ruby implementation with encryption
class EncryptionManager
  include TuskLang::Secure
  
  def create_user_with_encryption(user_data)
    tusk_config = Rails.application.config.tusk_config
    
    # Create user with encrypted sensitive data
    result = tusk_config.execute_encrypted_query('encrypt_sensitive_data', {
      name: user_data[:name],
      email: user_data[:email],
      password: user_data[:password],
      ssn: user_data[:ssn],
      credit_card: user_data[:credit_card]
    })
    
    puts "Created user with encrypted data: #{result[:id]}"
  end
  
  def retrieve_sensitive_data(user_id)
    tusk_config = Rails.application.config.tusk_config
    
    # Retrieve and decrypt sensitive data
    user_data = tusk_config.execute_encrypted_query('decrypt_sensitive_data', {
      user_id: user_id
    })
    
    puts "Retrieved sensitive data for user: #{user_data[:name]}"
  end
  
  def verify_user_password(email, password)
    tusk_config = Rails.application.config.tusk_config
    
    # Verify password hash
    user = tusk_config.execute_secure_query('verify_password', {
      email: email,
      password: password
    })
    
    puts "Password verified for user: #{user[:id]}"
  end
end

Access Control and Authorization

TuskLang configuration for access control
tsk_content = <<~TSK
  [access_control]
  # Role-based access control
  rbac_query: @db.query("""
      SELECT * FROM users 
      WHERE id = ?
  """, [@validate.integer(@request.user_id)])
      .requireAuthentication()
      .requireRole(["admin", "manager"])
      .requirePermission("read_users")
      .auditAccess()
  
  # Row-level security
  row_level_security: @db.query("""
      SELECT * FROM posts 
      WHERE author_id = ? OR status = 'public'
  """, [@request.current_user_id])
      .requireAuthentication()
      .enforceRowLevelSecurity("posts", {
          user_column: "author_id",
          public_columns: ["status"],
          public_values: ["public"]
      })
  
  # Column-level security
  column_level_security: @db.query("""
      SELECT 
          id,
          name,
          email,
          @if(@hasPermission("view_sensitive_data"), ssn, NULL) as ssn,
          @if(@hasPermission("view_financial_data"), salary, NULL) as salary
      FROM users 
      WHERE id = ?
  """, [@validate.integer(@request.user_id)])
      .requireAuthentication()
      .enforceColumnLevelSecurity({
          "ssn": ["view_sensitive_data"],
          "salary": ["view_financial_data"]
      })
TSK
Ruby implementation with access control
class AccessControlManager
  include TuskLang::Secure
  
  def execute_rbac_query(user_id)
    tusk_config = Rails.application.config.tusk_config
    
    # Execute role-based access control query
    user = tusk_config.execute_rbac_query('rbac_query', {
      user_id: user_id
    })
    
    puts "Retrieved user with RBAC: #{user[:name]}"
  end
  
  def execute_row_level_security(current_user_id)
    tusk_config = Rails.application.config.tusk_config
    
    # Execute row-level security query
    posts = tusk_config.execute_row_level_security('row_level_security', {
      current_user_id: current_user_id
    })
    
    puts "Retrieved posts with RLS: #{posts.length} posts"
  end
  
  def execute_column_level_security(user_id)
    tusk_config = Rails.application.config.tusk_config
    
    # Execute column-level security query
    user_data = tusk_config.execute_column_level_security('column_level_security', {
      user_id: user_id
    })
    
    puts "Retrieved user with CLS: #{user_data[:name]}"
  end
end

🔒 Advanced Security Patterns

Audit Logging and Monitoring

TuskLang configuration for audit logging
tsk_content = <<~TSK
  [audit_logging]
  # Comprehensive audit logging
  audited_query: @db.query("""
      UPDATE users 
      SET name = ?, email = ?, updated_at = ?
      WHERE id = ?
  """, [
      @sanitize.string(@request.name),
      @sanitize.email(@request.email),
      @now(),
      @validate.integer(@request.user_id)
  ])
      .audit({
          action: "user_update",
          user_id: @request.current_user_id,
          ip_address: @request.ip_address,
          user_agent: @request.user_agent,
          timestamp: @now(),
          changes: {
              name: @request.old_name + " -> " + @request.name,
              email: @request.old_email + " -> " + @request.email
          }
      })
      .logSecurityEvent("user_modification")
  
  # Security event monitoring
  security_monitoring: @db.monitor({
      track_failed_logins: true,
      track_suspicious_activity: true,
      track_data_access: true,
      alert_on_anomalies: true,
      retention_period: "90d"
  })
  
  # Real-time security alerts
  security_alerts: @db.alerts({
      failed_login_threshold: 5,
      suspicious_query_patterns: [
          "DROP TABLE",
          "DELETE FROM users",
          "UPDATE users SET role = 'admin'"
      ],
      data_export_threshold: 1000,
      alert_channels: ["email", "slack", "webhook"]
  })
TSK
Ruby implementation with audit logging
class AuditLogger
  include TuskLang::Secure
  
  def update_user_with_audit(user_id, user_data, current_user)
    tusk_config = Rails.application.config.tusk_config
    
    # Update user with comprehensive audit logging
    result = tusk_config.execute_audited_query('audited_query', {
      user_id: user_id,
      name: user_data[:name],
      email: user_data[:email],
      current_user_id: current_user.id,
      ip_address: current_user.ip_address,
      user_agent: current_user.user_agent,
      old_name: user_data[:old_name],
      old_email: user_data[:old_email]
    })
    
    puts "Updated user with audit: #{result[:affected_rows]} rows"
  end
  
  def start_security_monitoring
    tusk_config = Rails.application.config.tusk_config
    
    # Start security monitoring
    tusk_config.start_security_monitoring('security_monitoring')
    tusk_config.configure_security_alerts('security_alerts')
    
    puts "Security monitoring started"
  end
end

Data Masking and Anonymization

TuskLang configuration for data masking
tsk_content = <<~TSK
  [data_masking]
  # Data masking for sensitive fields
  masked_user_query: @db.query("""
      SELECT 
          id,
          @mask(name, "partial", {start: 0, end: 2}) as name,
          @mask(email, "email", {show_domain: true}) as email,
          @mask(phone, "phone", {show_last: 4}) as phone,
          @mask(ssn, "ssn", {show_last: 4}) as ssn
      FROM users 
      WHERE id = ?
  """, [@validate.integer(@request.user_id)])
      .requireAuthentication()
      .requirePermission("view_masked_data")
  
  # Data anonymization for analytics
  anonymized_analytics: @db.query("""
      SELECT 
          @anonymize(user_id, "hash") as anonymous_user_id,
          @anonymize(email, "hash") as anonymous_email,
          COUNT(*) as activity_count,
          DATE(created_at) as activity_date
      FROM user_activities 
      WHERE created_at >= ?
      GROUP BY anonymous_user_id, activity_date
  """, [@date.subtract("30d")])
      .requirePermission("view_analytics")
      .anonymize({
          retention_period: "1y",
          hash_salt: @env("ANONYMIZATION_SALT")
      })
  
  # PII detection and masking
  pii_detection: @db.query("""
      SELECT 
          id,
          @detectAndMaskPII(content, {
              patterns: ["email", "phone", "ssn", "credit_card"],
              mask_type: "redact"
          }) as sanitized_content
      FROM posts 
      WHERE id = ?
  """, [@validate.integer(@request.post_id)])
      .requireAuthentication()
TSK
Ruby implementation with data masking
class DataMaskingManager
  include TuskLang::Secure
  
  def retrieve_masked_user(user_id)
    tusk_config = Rails.application.config.tusk_config
    
    # Retrieve user with masked sensitive data
    user = tusk_config.execute_masked_query('masked_user_query', {
      user_id: user_id
    })
    
    puts "Retrieved masked user: #{user[:name]}"
  end
  
  def get_anonymized_analytics
    tusk_config = Rails.application.config.tusk_config
    
    # Get anonymized analytics data
    analytics = tusk_config.execute_anonymized_query('anonymized_analytics')
    
    puts "Retrieved anonymized analytics: #{analytics.length} records"
  end
  
  def sanitize_content_with_pii_detection(post_id)
    tusk_config = Rails.application.config.tusk_config
    
    # Sanitize content with PII detection
    post = tusk_config.execute_pii_detection('pii_detection', {
      post_id: post_id
    })
    
    puts "Sanitized content with PII detection: #{post[:id]}"
  end
end

🔧 Rails Integration

Rails Security Integration

TuskLang configuration for Rails integration
tsk_content = <<~TSK
  [rails_security]
  # Rails CSRF protection
  csrf_protected_query: @db.query("""
      INSERT INTO posts (title, content, author_id, created_at)
      VALUES (?, ?, ?, ?)
  """, [
      @sanitize.string(@request.title),
      @sanitize.text(@request.content),
      @validate.integer(@request.current_user_id),
      @now()
  ])
      .requireCSRFToken(@request.csrf_token)
      .validateInput()
      .auditAccess()
  
  # Rails session-based security
  session_secured_query: @db.query("""
      SELECT * FROM users 
      WHERE id = ? AND session_token = ?
  """, [
      @validate.integer(@request.user_id),
      @validate.string(@request.session_token)
  ])
      .validateSession(@request.session_id)
      .requireValidSession()
  
  # Rails strong parameters integration
  strong_parameters_query: @db.query("""
      UPDATE users 
      SET name = ?, email = ?, updated_at = ?
      WHERE id = ?
  """, [
      @strongParams(@request.user, [:name]),
      @strongParams(@request.user, [:email]),
      @now(),
      @validate.integer(@request.user_id)
  ])
      .requireStrongParameters()
      .validateInput()
TSK
Ruby implementation for Rails security
class RailsSecurityManager
  include TuskLang::Secure
  
  def create_post_with_csrf_protection(post_data, current_user)
    tusk_config = Rails.application.config.tusk_config
    
    # Create post with CSRF protection
    result = tusk_config.execute_csrf_protected_query('csrf_protected_query', {
      title: post_data[:title],
      content: post_data[:content],
      current_user_id: current_user.id,
      csrf_token: post_data[:csrf_token]
    })
    
    puts "Created post with CSRF protection: #{result[:id]}"
  end
  
  def authenticate_user_with_session(user_id, session_token, session_id)
    tusk_config = Rails.application.config.tusk_config
    
    # Authenticate with session security
    user = tusk_config.execute_session_secured_query('session_secured_query', {
      user_id: user_id,
      session_token: session_token,
      session_id: session_id
    })
    
    puts "Authenticated user with session: #{user[:name]}"
  end
end
Rails model with security
class User < ApplicationRecord
  include TuskLang::Secure
  
  # Secure associations
  has_many :posts, dependent: :destroy
  has_one :profile, dependent: :destroy
  
  # Secure validations
  validates :name, presence: true, length: { minimum: 2, maximum: 100 }
  validates :email, presence: true, uniqueness: true, format: { with: URI::MailTo::EMAIL_REGEXP }
  validates :password, presence: true, length: { minimum: 8 }, if: :password_required?
  
  # Secure callbacks
  before_save :encrypt_password, if: :password_changed?
  after_create :log_user_creation
  after_update :log_user_modification
  
  # Secure scopes
  scope :active, -> { where(active: true) }
  scope :admins, -> { where(role: 'admin') }
  
  private
  
  def encrypt_password
    self.password = TuskLang.encrypt(password, 'bcrypt')
  end
  
  def log_user_creation
    TuskLang.log_security_event('user_creation', {
      user_id: id,
      ip_address: Current.request&.remote_ip
    })
  end
  
  def log_user_modification
    TuskLang.log_security_event('user_modification', {
      user_id: id,
      changes: saved_changes
    })
  end
end

🧪 Testing and Validation

Security Testing

TuskLang configuration for security testing
tsk_content = <<~TSK
  [security_testing]
  # SQL injection tests
  sql_injection_tests: {
      test_1: @db.testSecurity("""
          SELECT * FROM users WHERE id = '1' OR '1'='1'
      """, {
          expected_result: "blocked",
          test_type: "sql_injection"
      }),
      
      test_2: @db.testSecurity("""
          SELECT * FROM users WHERE name = 'admin'--'
      """, {
          expected_result: "blocked",
          test_type: "sql_injection"
      })
  }
  
  # Authentication tests
  authentication_tests: {
      test_valid_login: @db.testAuthentication({
          username: "valid_user",
          password: "valid_password",
          expected_result: "success"
      }),
      
      test_invalid_login: @db.testAuthentication({
          username: "invalid_user",
          password: "invalid_password",
          expected_result: "failure"
      })
  }
  
  # Authorization tests
  authorization_tests: {
      test_authorized_access: @db.testAuthorization({
          user_id: 1,
          resource: "users",
          action: "read",
          expected_result: "allowed"
      }),
      
      test_unauthorized_access: @db.testAuthorization({
          user_id: 2,
          resource: "admin_panel",
          action: "access",
          expected_result: "denied"
      })
  }
TSK
Ruby implementation for security testing
class SecurityTester
  include TuskLang::Secure
  
  def run_security_tests
    tusk_config = Rails.application.config.tusk_config
    
    # Run SQL injection tests
    injection_tests = tusk_config.execute_security_tests('sql_injection_tests')
    
    injection_tests.each do |test_name, result|
      puts "#{test_name}: #{result[:status]}"
    end
    
    # Run authentication tests
    auth_tests = tusk_config.execute_authentication_tests('authentication_tests')
    
    auth_tests.each do |test_name, result|
      puts "#{test_name}: #{result[:status]}"
    end
    
    # Run authorization tests
    authz_tests = tusk_config.execute_authorization_tests('authorization_tests')
    
    authz_tests.each do |test_name, result|
      puts "#{test_name}: #{result[:status]}"
    end
  end
end
RSpec tests for security
RSpec.describe SecureQueryManager, type: :model do
  let(:security_manager) { SecureQueryManager.new }
  
  describe '#execute_secure_queries' do
    it 'prevents SQL injection attacks' do
      expect {
        security_manager.execute_secure_queries
      }.not_to raise_error
    end
    
    it 'validates input parameters' do
      # Test with malicious input
      malicious_input = { user_id: "1' OR '1'='1", active: true }
      
      expect {
        security_manager.execute_secure_queries(malicious_input)
      }.to raise_error(TuskLang::SecurityError)
    end
  end
end

🎯 Summary

TuskLang's database security system in Ruby provides:

- SQL injection prevention with parameterized queries and input validation - Advanced encryption for sensitive data with multiple algorithms - Comprehensive access control with role-based and row-level security - Audit logging and monitoring for security event tracking - Data masking and anonymization for privacy protection - Rails integration with CSRF protection and strong parameters - Security testing with automated vulnerability detection - Real-time security alerts for suspicious activity - PII detection and protection for compliance requirements

The Ruby implementation maintains TuskLang's rebellious spirit while providing enterprise-grade security capabilities that "don't bow to any king" - not even the most sophisticated security threats.

Ready to revolutionize your Ruby application's database security with TuskLang? 🚀