Module: Petticoat::Schema

Defined in:
lib/petticoat/schema.rb

Constant Summary collapse

PATH = 
File.expand_path('schema.json', __dir__).freeze

Class Method Summary collapse

Class Method Details

.validate!(payload) ⇒ Object

Raises:



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# File 'lib/petticoat/schema.rb', line 9

def self.validate!(payload)
  JSON::Validator.validate!(PATH, payload, validate_schema: true)
  validate_contexts!(payload.fetch('contexts'), subjects: payload.fetch('subjects'), view: payload.fetch('view'))
  expected = Digest::SHA256.hexdigest(Petticoat.canonical_json(payload.except('digest')))
  raise Error, 'Content digest mismatch' unless payload.fetch('digest') == expected

  payload
end

.validate_contexts!(contexts, subjects:, view:) ⇒ Object

The shape is schema-validated first; these invariants relate sibling fields.



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# File 'lib/petticoat/schema.rb', line 19

def self.validate_contexts!(contexts, subjects:, view:)
  contexts.each_value do |context|
    if view == 'resources'
      validate_resource_roles!(context, subjects)
    else
      context.fetch('roles').each_value do |states|
        raise Error, 'Unregistered action subject' unless (states.keys - subjects).empty?
      end
    end
  end
  contexts
end