Class: RailsAi::Security::SecureHTTPClient

Inherits:
Object
  • Object
show all
Defined in:
lib/rails_ai/security/secure_http_client.rb

Constant Summary collapse

DEFAULT_TIMEOUT = 
30
MAX_REDIRECTS = 
5

Class Method Summary collapse

Class Method Details

.blocked_host?(host) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rails_ai/security/secure_http_client.rb', line 151

def self.blocked_host?(host)
  return true if host.nil?
  
  blocked_hosts = %w[
    localhost 127.0.0.1 0.0.0.0 ::1
    metadata.google.internal
    instance-data.ec2.internal
    169.254.169.254
  ]
  
  blocked_hosts.any? { |blocked| host == blocked || host.end_with?(".#{blocked}") }
end

.create_secure_http_client(uri) ⇒ Object 



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# File 'lib/rails_ai/security/secure_http_client.rb', line 61

def self.create_secure_http_client(uri)
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = (uri.scheme == 'https')
  
  # Security settings
  http.verify_mode = OpenSSL::SSL::VERIFY_PEER
  http.verify_depth = 5
  
  # Timeout settings
  http.read_timeout = DEFAULT_TIMEOUT
  http.open_timeout = 10
  http.ssl_timeout = 10
  
  # Disable SSL compression
  http.ssl_version = :TLSv1_2
  
  http
end

.create_secure_request(uri, options) ⇒ Object 



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# File 'lib/rails_ai/security/secure_http_client.rb', line 80

def self.create_secure_request(uri, options)
  case options[:method]&.upcase || 'GET'
  when 'GET'
    Net::HTTP::Get.new(uri)
  when 'POST'
    request = Net::HTTP::Post.new(uri)
    request.body = options[:body] if options[:body]
    request
  when 'PUT'
    request = Net::HTTP::Put.new(uri)
    request.body = options[:body] if options[:body]
    request
  else
    raise SecurityError, "Unsupported HTTP method: #{options[:method]}"
  end
end

.execute_streaming_request(http, request, timeout, &block) ⇒ Object 



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# File 'lib/rails_ai/security/secure_http_client.rb', line 122

def self.execute_streaming_request(http, request, timeout, &block)
  Timeout.timeout(timeout) do
    http.request(request) do |response|
      validate_response(response)
      
      response.read_body do |chunk|
        block.call(chunk) if block
      end
    end
  end
rescue Timeout::Error
  raise SecurityError, "Streaming request timeout after #{timeout} seconds"
rescue => e
  raise SecurityError, "Streaming request failed: #{e.message}"
end

.execute_with_timeout(http, request, timeout) ⇒ Object 



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# File 'lib/rails_ai/security/secure_http_client.rb', line 110

def self.execute_with_timeout(http, request, timeout)
  Timeout.timeout(timeout) do
    response = http.request(request)
    validate_response(response)
    response
  end
rescue Timeout::Error
  raise SecurityError, "Request timeout after #{timeout} seconds"
rescue => e
  raise SecurityError, "HTTP request failed: #{e.message}"
end

.make_request(url, options = {}) ⇒ Object 



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# File 'lib/rails_ai/security/secure_http_client.rb', line 13

def self.make_request(url, options = {})
  uri = URI.parse(url)
  
  # Security validations
  validate_url(uri)
  
  http = create_secure_http_client(uri)
  request = create_secure_request(uri, options)
  
  # Set security headers
  set_security_headers(request)
  
  # Execute request with timeout
  execute_with_timeout(http, request, options[:timeout] || DEFAULT_TIMEOUT)
end

.make_streaming_request(url, options = {}, &block) ⇒ Object 



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# File 'lib/rails_ai/security/secure_http_client.rb', line 29

def self.make_streaming_request(url, options = {}, &block)
  uri = URI.parse(url)
  
  # Security validations
  validate_url(uri)
  
  http = create_secure_http_client(uri)
  request = create_secure_request(uri, options)
  
  # Set security headers
  set_security_headers(request)
  
  # Execute streaming request
  execute_streaming_request(http, request, options[:timeout] || DEFAULT_TIMEOUT, &block)
end

.private_ip?(host) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rails_ai/security/secure_http_client.rb', line 164

def self.private_ip?(host)
  return false if host.nil?
  
  require 'ipaddr'
  begin
    ip = IPAddr.new(host)
    ip.private? || ip.loopback? || ip.link_local?
  rescue IPAddr::InvalidAddressError
    false
  end
end

.set_security_headers(request) ⇒ Object 



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# File 'lib/rails_ai/security/secure_http_client.rb', line 97

def self.set_security_headers(request)
  request['User-Agent'] = 'RailsAI/1.0'
  request['Accept'] = 'application/json'
  request['Connection'] = 'close'
  request['Cache-Control'] = 'no-cache'
  
  # Security headers
  request['X-Requested-With'] = 'RailsAI'
  request['X-Content-Type-Options'] = 'nosniff'
  request['X-Frame-Options'] = 'DENY'
  request['X-XSS-Protection'] = '1; mode=block'
end

.validate_response(response) ⇒ Object 



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# File 'lib/rails_ai/security/secure_http_client.rb', line 138

def self.validate_response(response)
  case response.code.to_i
  when 200..299
    response
  when 400..499
    raise SecurityError, "Client error: #{response.code} #{response.message}"
  when 500..599
    raise SecurityError, "Server error: #{response.code} #{response.message}"
  else
    raise SecurityError, "Unexpected response: #{response.code} #{response.message}"
  end
end

.validate_url(uri) ⇒ Object 



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# File 'lib/rails_ai/security/secure_http_client.rb', line 47

def self.validate_url(uri)
  unless %w[http https].include?(uri.scheme)
    raise SecurityError, "Invalid URL scheme: #{uri.scheme}"
  end
  
  if blocked_host?(uri.host)
    raise SecurityError, "URL blocked for security reasons: #{uri.host}"
  end
  
  if private_ip?(uri.host)
    raise SecurityError, "Private IP addresses not allowed: #{uri.host}"
  end
end