Class: Conjur::Policy::YAML::Handler

Inherits:
Psych::Handler
  • Object
show all
Includes:
Logger
Defined in:
lib/conjur/policy/yaml/handler.rb

Defined Under Namespace

Classes: Base, MapEntry, Mapping, Root, Sequence

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Logger

included

Constructor Details

#initialize ⇒ Handler

Returns a new instance of Handler.



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# File 'lib/conjur/policy/yaml/handler.rb', line 305

def initialize
  @root = Root.new self
  @handlers = [ @root ]
  @anchors = {}
  @filename = "<no-filename>"
end

Instance Attribute Details

#filename ⇒ Object

Returns the value of attribute filename.



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# File 'lib/conjur/policy/yaml/handler.rb', line 7

def filename
  @filename
end

#parser ⇒ Object

Returns the value of attribute parser.



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# File 'lib/conjur/policy/yaml/handler.rb', line 7

def parser
  @parser
end

#result ⇒ Object

Returns the value of attribute result.



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# File 'lib/conjur/policy/yaml/handler.rb', line 7

def result
  @result
end

Instance Method Details

#alias(key) ⇒ Object 



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# File 'lib/conjur/policy/yaml/handler.rb', line 344

def alias key
  log {"#{indent}WARNING: anchor '#{key}' is not defined"} unless anchor(key)
  log {"#{indent}anchor '#{key}'=#{anchor(key)}"}
  handler.alias key
end

#anchor(*args) ⇒ Object

Get or set an anchor. Invoke with just the anchor name to get the value. Invoke with the anchor name and value to set the value.



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# File 'lib/conjur/policy/yaml/handler.rb', line 328

def anchor *args
  key, value, _ = args
  if _
    raise ArgumentError, "Expecting 1 or 2 arguments, got #{args.length}"
  elsif key && value
    raise "Duplicate anchor #{key}" if @anchors[key]
    @anchors[key] = value
  elsif key
    @anchors[key]
  else
    nil
  end
end

#end_mapping ⇒ Object 



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# File 'lib/conjur/policy/yaml/handler.rb', line 368

def end_mapping
  log {"#{indent}end mapping"}
  handler.end_mapping
end

#end_sequence ⇒ Object 



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# File 'lib/conjur/policy/yaml/handler.rb', line 363

def end_sequence
  log {"#{indent}end sequence"}
  handler.end_sequence
end

#handler ⇒ Object 



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# File 'lib/conjur/policy/yaml/handler.rb', line 342

def handler; @handlers.last; end

#indent ⇒ Object 



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# File 'lib/conjur/policy/yaml/handler.rb', line 386

def indent
  "  " * [ @handlers.length - 1, 0 ].max
end

#log(&block) ⇒ Object 



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# File 'lib/conjur/policy/yaml/handler.rb', line 380

def log &block
  logger.debug('conjur/policy/handler') {
    yield
  }
end

#pop_handler ⇒ Object 



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# File 'lib/conjur/policy/yaml/handler.rb', line 321

def pop_handler
  @handlers.pop
  log {"#{indent}popped to handler #{handler.class}"}
end

#push_handler(handler) ⇒ Object 



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# File 'lib/conjur/policy/yaml/handler.rb', line 316

def push_handler handler
  @handlers.push handler
  log {"#{indent}pushed handler #{handler.class}"}
end

#scalar(*args) ⇒ Object 



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# File 'lib/conjur/policy/yaml/handler.rb', line 373

def scalar *args
  # value, anchor, tag, plain, quoted, style
  value, anchor, tag, _, quoted = args
  log {"#{indent}got scalar #{tag ? tag + '=' : ''}#{value}#{anchor ? '#' + anchor : ''}"}
  handler.scalar value, tag, quoted, anchor
end

#start_mapping(*args) ⇒ Object 



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# File 'lib/conjur/policy/yaml/handler.rb', line 350

def start_mapping *args
  log {"#{indent}start mapping #{args}"}
  anchor, tag, _ = args
  tag = "!automatic-role" if %w(!managed-role !managed_role).include?(tag)
  handler.start_mapping tag, anchor
end

#start_sequence(*args) ⇒ Object 



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# File 'lib/conjur/policy/yaml/handler.rb', line 357

def start_sequence *args
  log {"#{indent}start sequence : #{args}"}
  anchor, _ = args
  handler.start_sequence anchor
end