Class: PuppetX::Dsc::TypeHelpers

Inherits:
Object
  • Object
show all
Defined in:
lib/puppet_x/puppetlabs/dsc_type_helpers.rb

Class Method Summary collapse

Class Method Details

.ensure_reboot_relationship(resource, pending_relationships) ⇒ Object

if an edge already exists from Reboot to this resource Puppet will recognize the cyclic dependency automatically and fail with: Error: Failed to apply catalog: Found 1 dependency cycle: (Dsc_file => Reboot => Dsc_file)



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# File 'lib/puppet_x/puppetlabs/dsc_type_helpers.rb', line 151

def self.ensure_reboot_relationship(resource, pending_relationships)
  reboot_resource = resource.catalog.resource(:reboot, 'dsc_reboot')

  # do nothing if no Reboot[dsc_reboot] or already an edge from resource to it
  if should_add_reboot_relationship(resource, reboot_resource, pending_relationships)
    # otherwise build resource[name] => Reboot[dsc_reboot]
    edge = Puppet::Relationship.new(resource, reboot_resource,
        { :callback => :refresh, :event => :ALL_EVENTS })
    pending_relationships << edge
  end

  pending_relationships
end

.munge_boolean(value) ⇒ Object 



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# File 'lib/puppet_x/puppetlabs/dsc_type_helpers.rb', line 4

def self.munge_boolean(value)
  return true if value =~ (/^(true|t|yes|y|1)$/i)
  return false if value.empty? || value =~ (/^(false|f|no|n|0)$/i)

  raise ArgumentError.new "invalid value: #{value}"
end

.munge_embeddedinstance(mof_type, embeddedinstance_value) ⇒ Object 



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# File 'lib/puppet_x/puppetlabs/dsc_type_helpers.rb', line 15

def self.munge_embeddedinstance(mof_type, embeddedinstance_value)
  remapped_value = embeddedinstance_value.map do |key, value|
    if mof_type[key.downcase]
      case mof_type[key.downcase][:type]
      when "bool", "boolean"
        value = munge_boolean(value.to_s)
      # particularly important to Puppet 3.x which parses numbers as strings
      when "uint8","uint16","uint32","uint64",
        "uint8[]","uint16[]","uint32[]","uint64[]",
        "int8","int16","int32","int64",
        "sint8","sint16","sint32","sint64",
        "int8[]","int16[]","int32[]","int64[]",
        "sint8[]","sint16[]","sint32[]","sint64[]"

        unless Array(value).all? { |v| v.is_a?(Numeric) || v =~ /^[-+]?\d+$/ }
          fail "#{key} should only include numeric values: invalid value #{value}"
        end

        value = value.is_a?(Array) ? value.map { |v| v.to_i } : value.to_i
      end
    end

    [key, value]
  end

  Hash[remapped_value]
end

.munge_integer(value) ⇒ Object 



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# File 'lib/puppet_x/puppetlabs/dsc_type_helpers.rb', line 11

def self.munge_integer(value)
  value.is_a?(Array) ? value.map { |v| v.to_i } : value.to_i
end

.should_add_reboot_relationship(resource, reboot_resource, pending_relationships) ⇒ Object 



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# File 'lib/puppet_x/puppetlabs/dsc_type_helpers.rb', line 136

def self.should_add_reboot_relationship(resource, reboot_resource, pending_relationships)
  return false if !reboot_resource

  # edge exists in graph from previous resource, so don't add
  return false if resource.catalog.relationship_graph.edge?(resource, reboot_resource) ||
    # newly formed edges not yet in catalog include the edge, so don't add
    pending_relationships.any? { |e| e.source == resource && e.target == reboot_resource }

  true
end

.validate_mof_type(mof_type, embeddedinstance_name, name, value) ⇒ Object 



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# File 'lib/puppet_x/puppetlabs/dsc_type_helpers.rb', line 71

def self.validate_mof_type(mof_type, embeddedinstance_name, name, value)
  should_be_array = mof_type[:type].end_with?('[]')
  if !should_be_array && value.is_a?(Array)
    fail "#{name} of #{embeddedinstance_name} should not be an Array: invalid value #{value}"
  end

  case mof_type[:type]
  when "bool", "boolean"
    munge_boolean(value.to_s)
  when "uint8","uint16","uint32","uint64",
    "uint8[]","uint16[]","uint32[]","uint64[]",
    "int8","int16","int32","int64",
    "sint8","sint16","sint32","sint64",
    "int8[]","int16[]","int32[]","int64[]",
    "sint8[]","sint16[]","sint32[]","sint64[]"

    width = mof_type[:type].gsub(/[^\d]/, '').to_i

    # signed values reserve 1 bit for sign
    signed = !mof_type[:type].start_with?('u')
    min = (signed ? eval('-0b' + '1' * (width - 1)) - 1 : 0)
    max = (signed ? eval('0b' + '1' * (width - 1)) : eval('0b' + '1' * width))

    # munging has not yet occurred to convert these values prior to validation
    values = Array(value)
    unless values.all? { |v| v.is_a?(Numeric) || v =~ /^[-+]?\d+$/ }
      fail "#{name} of #{embeddedinstance_name} is not a numeric value: invalid value #{value}"
    end

    values = values.map { |v| v.to_i }
    unless values.all? { |v| (min <= v) && (v <= max) }
      fail "#{name} of #{embeddedinstance_name} is outside the valid range of values: #{min} to #{max}: invalid value #{value}"
    end

    if mof_type[:values] && !values.all? { |v| mof_type[:values].include?(v) }
      fail("Invalid value #{value}. Valid values are #{mof_type[:values].join(', ')}")
    end
  when 'string', 'string[]'
    values = Array(value)
    unless values.all? { |v| v.is_a? String }
      fail "#{name} of #{embeddedinstance_name} should be an Array: invalid value #{value}"
    end
    if mof_type[:values] && !values.all? { |v| mof_type[:values].any? { |allowed_v| v.casecmp(allowed_v) == 0 } }
      fail("Invalid value #{value}. Valid values are #{mof_type[:values].join(', ')}")
    end
  when 'MSFT_Credential', 'MSFT_Credential[]'
    validate_MSFT_Credential(name, value)
  when 'MSFT_KeyValuePair'
    unless value.is_a? Hash && value.length == 1
      fail "#{name} of #{embeddedinstance_name} should be a Hash with 1 item: invalid value #{value}"
    end
  when 'MSFT_KeyValuePair[]'
    unless value.is_a? Hash
      fail "#{name} of #{embeddedinstance_name} should be a Hash: invalid value #{value}"
    end
  else
    validation_method = "validate_#{mof_type[:type]}"
    if respond_to?(validation_method)
      send(validation_method, name, value)
    else
      fail "Unable to validate property #{name} (type #{mof_type[:type]}) of #{embeddedinstance_name}: value #{value}"
    end
  end
end

.validate_MSFT_Credential(name, value) ⇒ Object 



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# File 'lib/puppet_x/puppetlabs/dsc_type_helpers.rb', line 43

def self.validate_MSFT_Credential(name, value)
  unless value.kind_of?(Hash)
    fail("Invalid value '#{value}'. Should be a hash")
  end

  required = ['user', 'password']
  required.each do |key|
    if value[key]
      unless (value[key].is_a? String) || (value[key].is_a? Puppet::Pops::Types::PSensitiveType::Sensitive)
        fail "#{key} for #{name} should be a String or Sensitive value"
      end
      fail "#{key} must not be empty" if value[key].to_s.empty?
    end
  end

  specified_keys = value.keys.map(&:to_s)

  missing = required - specified_keys
  unless missing.empty?
    fail "#{name} is missing the following required keys: #{missing.join(',')}"
  end

  extraneous = specified_keys - required
  unless extraneous.empty?
    fail "#{name} includes invalid keys: #{extraneous.join(',')}"
  end
end