Module: NewRelic::Security::Instrumentation::Kernel::Chain

Defined in:
lib/newrelic_security/instrumentation-security/kernel/chain.rb

Class Method Summary collapse

Class Method Details

.instrument! ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/chain.rb', line 5

def self.instrument!
  ::Object.class_eval do
    include NewRelic::Security::Instrumentation::Kernel

    private

    # TODO: This hook is useful for applying instrumentation on dynamically loaded modules, dynamic loading of module is unsupported for now.
    # alias_method :require_without_security, :require

    # def require(name)
    #   retval = nil
    #   event = require_on_enter(name) { retval = require_without_security(name) }
    #   require_on_exit(event, retval, name) { return retval }
    # end
    
    alias_method :system_without_security, :system

    def system(*var)
      retval = nil
      event = system_on_enter(*var) { retval = system_without_security(*var) }
      system_on_exit(event, retval) { return retval }
    end

    alias_method :backtick_without_security, :`

    def `(cmd)
      retval = nil
      event = backtick_on_enter(cmd) { retval = backtick_without_security(cmd) }
      backtick_on_exit(event) { return retval }
    end

    alias_method :spawn_without_security, :spawn

    def spawn(*var)
      retval = nil
      event = spawn_on_enter(*var) { retval = spawn_without_security(*var) }
      spawn_on_exit(event, retval) { return retval }
    end

    alias_method :exec_without_security, :exec

    def exec(*var)
      retval = nil
      event = exec_on_enter(*var) { retval = exec_without_security(*var) }
      exec_on_exit(event) { return retval }
    end

    alias_method :open_without_security, :open

    def open(*args, **kwargs)
      retval = nil
      event = open_on_enter(*args, **kwargs) { retval = open_without_security(*args, **kwargs) }
      open_on_exit(event, retval) { return retval }
    end
    
  end
end