Class: TCellAgent::Configuration

Inherits:
Object
  • Object
show all
Defined in:
lib/tcell_agent/configuration.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename = "config/tcell_agent.config", useapp = nil) ⇒ Configuration

Returns a new instance of Configuration.



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# File 'lib/tcell_agent/configuration.rb', line 112

def initialize(filename="config/tcell_agent.config", useapp=nil)
  # These will be set when the agent starts up, to give rails initializers
  # a chance to run
  @cache_filename = nil
  @agent_log_dir = nil
  @log_tag = nil

  @logger = nil
  @appfirewall_payloads_logger = nil

  @version = 0
  @exp_config_settings = true
  @demomode = false

  @fetch_policies_from_tcell = true
  @instrument_for_events = true

  @disable_all = false
  @enabled = true
  @enable_event_manager = true
  @enable_event_consumer = true
  @enable_policy_polling = true
  @enable_instrumentation = true
  @enable_intercept_requests = true

  @enabled_instrumentations = {
    :doorkeeper => true,
    :devise => true,
    :authlogic => true
  }

  @log_file_name = "tcell_agent.log"

  @event_batch_size_limit = 50
  @event_time_limit_seconds = 15

  @max_data_ex_db_records_per_request = 1000
  @reverse_proxy = true
  @reverse_proxy_ip_address_header = nil
  @allow_payloads = true

  @max_csp_header_bytes = nil
  @password_hmac_key = nil

  @agent_home_dir = ENV["TCELL_AGENT_HOME"] || File.join(Dir.getwd, "tcell")
  @config_filename = ENV["TCELL_AGENT_CONFIG"] || File.join(Dir.getwd, filename)

  read_config_from_file(@config_filename)
  read_config_using_env

  if @demomode
    @event_batch_size_limit = 1
    @event_time_limit_seconds = 2
  end

  if ENV["TCELL_AGENT_ALLOW_UNENCRYPTED_APPSENSOR_PAYLOADS"]
    puts "tCell.io Agent: [DEPRECATED] TCELL_AGENT_ALLOW_UNENCRYPTED_APPSENSOR_PAYLOADS is deprecated and will be removed in a future release. Please switch to TCELL_AGENT_ALLOW_PAYLOADS."
  end

  if (ENV["TCELL_AGENT_ALLOW_UNENCRYPTED_APPFIREWALL_PAYLOADS"])
    puts "tCell.io Agent: [DEPRECATED] TCELL_AGENT_ALLOW_UNENCRYPTED_APPFIREWALL_PAYLOADS is deprecated and will be removed in a future release. Please switch to TCELL_AGENT_ALLOW_PAYLOADS."
  end

  if (ENV["TCELL_AGENT_ALLOW_UNENCRYPTED_APPSENSOR_PAYLOADS"] != nil)
    @allow_payloads = [true, "true", "yes", "1"].include?(ENV["TCELL_AGENT_ALLOW_UNENCRYPTED_APPSENSOR_PAYLOADS"])
  end
  if (ENV["TCELL_AGENT_ALLOW_UNENCRYPTED_APPFIREWALL_PAYLOADS"] != nil)
    @allow_payloads = [true, "true", "yes", "1"].include?(ENV["TCELL_AGENT_ALLOW_UNENCRYPTED_APPFIREWALL_PAYLOADS"])
  end
  if (ENV["TCELL_AGENT_ALLOW_PAYLOADS"] != nil)
    @allow_payloads = [true, "true", "yes", "1"].include?(ENV["TCELL_AGENT_ALLOW_PAYLOADS"])
  end

  @tcell_api_url = compose_api_url
  @tcell_input_url ||= "https://input.tcell.io/api/v1"
  @js_agent_api_base_url ||= @tcell_api_url
  @js_agent_url ||= "https://jsagent.tcell.io/tcellagent.min.js"

  if (@host_identifier == nil)
    begin
      @host_identifier = (Socket.gethostname() || "localhost")
    rescue StandardError
      @host_identifier = "host_identifier_not_found"
    end
  end

  @uuid = SecureRandom.uuid
end

Instance Attribute Details

#agent_home_dir ⇒ Object

Returns the value of attribute agent_home_dir.



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# File 'lib/tcell_agent/configuration.rb', line 24

def agent_home_dir
  @agent_home_dir
end

#agent_home_owner ⇒ Object

Returns the value of attribute agent_home_owner.



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# File 'lib/tcell_agent/configuration.rb', line 24

def agent_home_owner
  @agent_home_owner
end

#agent_log_dir ⇒ Object

Returns the value of attribute agent_log_dir.



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# File 'lib/tcell_agent/configuration.rb', line 24

def agent_log_dir
  @agent_log_dir
end

#allow_payloads ⇒ Object

Returns the value of attribute allow_payloads.



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# File 'lib/tcell_agent/configuration.rb', line 24

def allow_payloads
  @allow_payloads
end

#api_key ⇒ Object

Returns the value of attribute api_key.



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# File 'lib/tcell_agent/configuration.rb', line 24

def api_key
  @api_key
end

#app_id ⇒ Object

Returns the value of attribute app_id.



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# File 'lib/tcell_agent/configuration.rb', line 24

def app_id
  @app_id
end

#appfirewall_payloads_logger ⇒ Object

Returns the value of attribute appfirewall_payloads_logger.



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# File 'lib/tcell_agent/configuration.rb', line 24

def appfirewall_payloads_logger
  @appfirewall_payloads_logger
end

#base_dir ⇒ Object

Returns the value of attribute base_dir.



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# File 'lib/tcell_agent/configuration.rb', line 24

def base_dir
  @base_dir
end

#cache_filename ⇒ Object

Returns the value of attribute cache_filename.



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# File 'lib/tcell_agent/configuration.rb', line 24

def cache_filename
  @cache_filename
end

#config_filename ⇒ Object

Returns the value of attribute config_filename.



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# File 'lib/tcell_agent/configuration.rb', line 24

def config_filename
  @config_filename
end

#demomode ⇒ Object

Returns the value of attribute demomode.



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# File 'lib/tcell_agent/configuration.rb', line 24

def demomode
  @demomode
end

#disable_all ⇒ Object

Returns the value of attribute disable_all.



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# File 'lib/tcell_agent/configuration.rb', line 56

def disable_all
  @disable_all
end

#enable_event_consumer ⇒ Object

Returns the value of attribute enable_event_consumer.



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# File 'lib/tcell_agent/configuration.rb', line 56

def enable_event_consumer
  @enable_event_consumer
end

#enable_event_manager ⇒ Object

Returns the value of attribute enable_event_manager.



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# File 'lib/tcell_agent/configuration.rb', line 56

def enable_event_manager
  @enable_event_manager
end

#enable_instrumentation ⇒ Object

Returns the value of attribute enable_instrumentation.



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# File 'lib/tcell_agent/configuration.rb', line 56

def enable_instrumentation
  @enable_instrumentation
end

#enable_intercept_requests ⇒ Object

Returns the value of attribute enable_intercept_requests.



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# File 'lib/tcell_agent/configuration.rb', line 56

def enable_intercept_requests
  @enable_intercept_requests
end

#enable_policy_polling ⇒ Object

Returns the value of attribute enable_policy_polling.



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# File 'lib/tcell_agent/configuration.rb', line 56

def enable_policy_polling
  @enable_policy_polling
end

#enabled ⇒ Object

Returns the value of attribute enabled.



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# File 'lib/tcell_agent/configuration.rb', line 56

def enabled
  @enabled
end

#enabled_instrumentations ⇒ Object

Returns the value of attribute enabled_instrumentations.



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# File 'lib/tcell_agent/configuration.rb', line 64

def enabled_instrumentations
  @enabled_instrumentations
end

#event_batch_size_limit ⇒ Object

Returns the value of attribute event_batch_size_limit.



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# File 'lib/tcell_agent/configuration.rb', line 24

def event_batch_size_limit
  @event_batch_size_limit
end

#event_time_limit_seconds ⇒ Object

Returns the value of attribute event_time_limit_seconds.



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# File 'lib/tcell_agent/configuration.rb', line 24

def event_time_limit_seconds
  @event_time_limit_seconds
end

#exp_config_settings ⇒ Object

Returns the value of attribute exp_config_settings.



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# File 'lib/tcell_agent/configuration.rb', line 66

def exp_config_settings
  @exp_config_settings
end

#fetch_policies_from_tcell ⇒ Object

Returns the value of attribute fetch_policies_from_tcell.



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# File 'lib/tcell_agent/configuration.rb', line 24

def fetch_policies_from_tcell
  @fetch_policies_from_tcell
end

#hmac_key ⇒ Object

Returns the value of attribute hmac_key.



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# File 'lib/tcell_agent/configuration.rb', line 24

def hmac_key
  @hmac_key
end

#host_identifier ⇒ Object

Returns the value of attribute host_identifier.



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# File 'lib/tcell_agent/configuration.rb', line 24

def host_identifier
  @host_identifier
end

#instrument_for_events ⇒ Object

Returns the value of attribute instrument_for_events.



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# File 'lib/tcell_agent/configuration.rb', line 24

def instrument_for_events
  @instrument_for_events
end

#js_agent_api_base_url ⇒ Object

Returns the value of attribute js_agent_api_base_url.



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# File 'lib/tcell_agent/configuration.rb', line 24

def js_agent_api_base_url
  @js_agent_api_base_url
end

#js_agent_url ⇒ Object

Returns the value of attribute js_agent_url.



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# File 'lib/tcell_agent/configuration.rb', line 24

def js_agent_url
  @js_agent_url
end

#log_file_name ⇒ Object

Returns the value of attribute log_file_name.



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# File 'lib/tcell_agent/configuration.rb', line 24

def log_file_name
  @log_file_name
end

#log_tag ⇒ Object

Returns the value of attribute log_tag.



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# File 'lib/tcell_agent/configuration.rb', line 24

def log_tag
  @log_tag
end

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/tcell_agent/configuration.rb', line 24

def logger
  @logger
end

#logging_options ⇒ Object

Returns the value of attribute logging_options.



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# File 'lib/tcell_agent/configuration.rb', line 24

def logging_options
  @logging_options
end

#max_csp_header_bytes ⇒ Object

Returns the value of attribute max_csp_header_bytes.



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# File 'lib/tcell_agent/configuration.rb', line 24

def max_csp_header_bytes
  @max_csp_header_bytes
end

#max_data_ex_db_records_per_request ⇒ Object

Returns the value of attribute max_data_ex_db_records_per_request.



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# File 'lib/tcell_agent/configuration.rb', line 24

def max_data_ex_db_records_per_request
  @max_data_ex_db_records_per_request
end

#password_hmac_key ⇒ Object

Returns the value of attribute password_hmac_key.



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# File 'lib/tcell_agent/configuration.rb', line 24

def password_hmac_key
  @password_hmac_key
end

#preload_policy_filename ⇒ Object

Returns the value of attribute preload_policy_filename.



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# File 'lib/tcell_agent/configuration.rb', line 24

def preload_policy_filename
  @preload_policy_filename
end

#reverse_proxy ⇒ Object

Returns the value of attribute reverse_proxy.



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# File 'lib/tcell_agent/configuration.rb', line 24

def reverse_proxy
  @reverse_proxy
end

#reverse_proxy_ip_address_header ⇒ Object

Returns the value of attribute reverse_proxy_ip_address_header.



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# File 'lib/tcell_agent/configuration.rb', line 24

def reverse_proxy_ip_address_header
  @reverse_proxy_ip_address_header
end

#tcell_api_url ⇒ Object

Returns the value of attribute tcell_api_url.



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# File 'lib/tcell_agent/configuration.rb', line 24

def tcell_api_url
  @tcell_api_url
end

#tcell_input_url ⇒ Object

Returns the value of attribute tcell_input_url.



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# File 'lib/tcell_agent/configuration.rb', line 24

def tcell_input_url
  @tcell_input_url
end

#uuid ⇒ Object

Returns the value of attribute uuid.



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# File 'lib/tcell_agent/configuration.rb', line 24

def uuid
  @uuid
end

#version ⇒ Object

Returns the value of attribute version.



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# File 'lib/tcell_agent/configuration.rb', line 24

def version
  @version
end

Instance Method Details

#allow_unencrypted_appfirewall_payloads ⇒ Object

keep this around in case the value was read as well



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# File 'lib/tcell_agent/configuration.rb', line 362

def allow_unencrypted_appfirewall_payloads
  @allow_payloads
end

#allow_unencrypted_appfirewall_payloads=(val) ⇒ Object

old value could be set via initializers, this makes sure those initializers still work properly



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# File 'lib/tcell_agent/configuration.rb', line 358

def allow_unencrypted_appfirewall_payloads=(val)
  @allow_payloads = val
end

#appfirewall_payloads_log_filename ⇒ Object 



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# File 'lib/tcell_agent/configuration.rb', line 371

def appfirewall_payloads_log_filename
  @agent_log_dir ||= File.join(@agent_home_dir, "logs")
  File.join(@agent_log_dir, "tcell_agent_payloads.log")
end

#cache_filename_with_app_id ⇒ Object 



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# File 'lib/tcell_agent/configuration.rb', line 233

def cache_filename_with_app_id
  @cache_filename ||= File.join(@agent_home_dir, "cache", "tcell_agent.cache")

  if @app_id
    "#{@cache_filename}.#{@app_id}"
  else
    @cache_filename
  end
end

#compose_api_url ⇒ Object 



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# File 'lib/tcell_agent/configuration.rb', line 201

def compose_api_url
  @tcell_api_url ||= "https://api.tcell.io"
  parsed_uri = URI.parse(@tcell_api_url)

  api_url = [
    parsed_uri.scheme,
    "://",
    parsed_uri.host
  ]

  api_url.push(":#{parsed_uri.port}") unless [80, 443].include?(parsed_uri.port)

  [
    api_url.join(''),
    "/agents/api/v1/apps/",
    "{app_id}",
    "/policies/latest",
    "?",
    "type=jsagentinjection:v1",
    "&type=http-redirect:v1",
    "&type=clickjacking:v1",
    "&type=secure-headers:v1",
    "&type=cmdi:v1",
    "&type=csp-headers:v1",
    "&type=dlp:v1",
    "&type=login:v1",
    "&type=regex:v1",
    "&type=appsensor:v2",
    "&type=patches:v1"
  ].join('')
end

#log_filename ⇒ Object 



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# File 'lib/tcell_agent/configuration.rb', line 366

def log_filename
  @agent_log_dir ||= File.join(@agent_home_dir, "logs")
  File.join(@agent_log_dir, @log_file_name)
end

#read_config_from_file(filename) ⇒ Object 



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# File 'lib/tcell_agent/configuration.rb', line 257

def read_config_from_file(filename)
  if File.file?(filename)
    #puts "tCell.io: Loading from file"
    begin
      config_text = File.open(filename).read
      config = JSON.parse(config_text)

      messages = TCellAgent::Config::Validate.get_unknown_options(config)
      messages.each do |message|
        puts message
      end

      if (config["version"] == 1)
        # Required
        app_data = config["applications"][0] #Default
        @version = 1
        @app_id = app_data["app_id"]
        @api_key = app_data["api_key"]

        # Optional
        @preload_policy_filename = app_data.fetch("preload_policy_filename", nil)

        @disable_all = app_data.fetch("disable_all", @disable_all)
        @enabled = app_data.fetch("enabled", @enabled)

        @enable_event_manager = app_data.fetch("enable_event_manager", @enable_event_manager)
        @enable_event_consumer = app_data.fetch("enable_event_consumer", @enable_event_consumer)
        @enable_policy_polling = app_data.fetch("enable_policy_polling", @enable_policy_polling)
        @enable_instrumentation = app_data.fetch("enable_instrumentation", @enable_instrumentation)
        @enable_intercept_requests = app_data.fetch("enable_intercept_requests", @enable_intercept_requests)
        @fetch_policies_from_tcell = app_data.fetch("fetch_policies_from_tcell", @fetch_policies_from_tcell)
        @instrument_for_events = app_data.fetch("instrument_for_events", @instrument_for_events)

        @agent_home_owner = app_data.fetch("agent_home_owner", @agent_home_owner)

        @logging_options = app_data.fetch("logging_options", {})
        @agent_log_dir = app_data.fetch("log_dir", @agent_log_dir)
        @log_file_name = @logging_options.fetch("filename", @log_file_name)

        @tcell_api_url = app_data.fetch("tcell_api_url", @tcell_api_url)
        @tcell_input_url = app_data.fetch("tcell_input_url", @tcell_input_url)

        @max_csp_header_bytes = app_data.fetch("max_csp_header_bytes", @max_csp_header_bytes)

        @allow_payloads = app_data.fetch(
          'allow_unencrypted_appsensor_payloads',
          @allow_payloads
        )
        @allow_payloads = app_data.fetch(
          'allow_unencrypted_appfirewall_payloads',
          @allow_payloads
        )
        @allow_payloads = app_data.fetch(
          'allow_payloads',
          @allow_payloads
        )

        data_exposure = app_data.fetch('data_exposure', {})
        @max_data_ex_db_records_per_request = data_exposure.fetch('max_data_ex_db_records_per_request', @max_data_ex_db_records_per_request)

        @enabled_instrumentations = app_data.fetch('enabled_instrumentations', @enabled_instrumentations)

        @reverse_proxy = app_data.fetch('reverse_proxy', @reverse_proxy)
        @reverse_proxy_ip_address_header = app_data.fetch('reverse_proxy_ip_address_header', @reverse_proxy_ip_address_header)

        @host_identifier = app_data.fetch("host_identifier", @host_identifier)
        @hmac_key = app_data.fetch("hmac_key", @hmac_key)

        @password_hmac_key = app_data.fetch("password_hmac_key", @password_hmac_key)

        @uuid = SecureRandom.uuid
        if (@uuid == nil)
          @uuid = "secure-random-failed"
        end

        if app_data.key?("js_agent_api_base_url")
          @js_agent_api_base_url = app_data["js_agent_api_base_url"]
        end
        if app_data.key?("js_agent_url")
          @js_agent_url = app_data["js_agent_url"]
        end

        @demomode = app_data.fetch('demomode', @demomode)
      else
        puts " ********* ********* ********* *********"
        puts "* tCell.io                               *"
        puts "* Unsupported config file version        *"
        puts " ********* ********* ********* *********"
      end
    rescue StandardError => e
      puts " ********* ********* ********* *********"
      puts "* tCell.io                               *"
      puts "* Could not load config file             *"
      puts " ********* ********* ********* *********"
      puts e
    end #begin
  end # filename exist
end

#read_config_using_env ⇒ Object 



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# File 'lib/tcell_agent/configuration.rb', line 243

def read_config_using_env
  @app_id = ENV["TCELL_AGENT_APP_ID"] || @app_id
  @api_key = ENV["TCELL_AGENT_API_KEY"] || @api_key
  @hmac_key = ENV["TCELL_HMAC_KEY"] || @hmac_key
  @password_hmac_key = ENV["TCELL_PASSWORD_HMAC_KEY"] || @password_hmac_key
  @host_identifier = ENV["TCELL_AGENT_HOST_IDENTIFIER"] || @host_identifier
  @tcell_api_url = ENV["TCELL_API_URL"] || @tcell_api_url
  @tcell_input_url = ENV["TCELL_INPUT_URL"] || @tcell_input_url
  @demomode = ENV["TCELL_DEMOMODE"] || @demomode

  @agent_home_owner = ENV["TCELL_AGENT_HOME_OWNER"] || @agent_home_owner
  @agent_log_dir = ENV["TCELL_AGENT_LOG_DIR"] || @agent_log_dir
end

#should_consume_event? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tcell_agent/configuration.rb', line 72

def should_consume_event?
  @enabled && @enable_event_manager && @enable_event_consumer
end

#should_instrument? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tcell_agent/configuration.rb', line 80

def should_instrument?
  @enabled && @enable_instrumentation && @instrument_for_events # instrument_for_events = legacy
end

#should_instrument_authlogic? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tcell_agent/configuration.rb', line 104

def should_instrument_authlogic?
  if @enabled_instrumentations.has_key?('authlogic') || @enabled_instrumentations.has_key?(:authlogic)
    !!(@enabled_instrumentations['authlogic'] || @enabled_instrumentations[:authlogic])
  else
    true
  end
end

#should_instrument_devise? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tcell_agent/configuration.rb', line 96

def should_instrument_devise?
  if @enabled_instrumentations.has_key?('devise') || @enabled_instrumentations.has_key?(:devise)
    !!(@enabled_instrumentations['devise'] || @enabled_instrumentations[:devise])
  else
    true
  end
end

#should_instrument_doorkeeper? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tcell_agent/configuration.rb', line 88

def should_instrument_doorkeeper?
  if @enabled_instrumentations.has_key?('doorkeeper') || @enabled_instrumentations.has_key?(:doorkeeper)
    !!(@enabled_instrumentations['doorkeeper'] || @enabled_instrumentations[:doorkeeper])
  else
    true
  end
end

#should_intercept_requests? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tcell_agent/configuration.rb', line 84

def should_intercept_requests?
  @enabled && @enable_instrumentation && @enable_intercept_requests
end

#should_start_event_manager? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tcell_agent/configuration.rb', line 68

def should_start_event_manager?
  @enabled && @enable_event_manager
end

#should_start_policy_poll? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tcell_agent/configuration.rb', line 76

def should_start_policy_poll?
  @enabled && @enable_policy_polling && @fetch_policies_from_tcell # fetch_policies_from_tcel = legacy
end