2019-08-06 17:54:17 +00:00
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# frozen_string_literal: true
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# Representa la plantilla de un campo en los metadatos del artículo
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2019-08-06 23:17:29 +00:00
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#
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# TODO: Validar el tipo de valor pasado a value= según el :type
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2019-08-13 23:33:57 +00:00
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#
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2019-08-06 17:54:17 +00:00
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MetadataTemplate = Struct.new(:site, :document, :name, :label, :type,
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2019-08-08 18:28:23 +00:00
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:value, :help, :required, :errors, :post,
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2019-08-07 21:35:37 +00:00
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:layout, keyword_init: true) do
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2020-02-12 21:24:54 +00:00
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2020-10-04 01:32:52 +00:00
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attr_reader :value_was
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def value=(new_value)
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@value_was = value
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self[:value] = new_value
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end
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def changed?
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!value_was.nil? && value_was != value
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end
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2019-08-06 17:54:17 +00:00
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# El valor por defecto
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def default_value
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raise NotImplementedError
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end
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# Valores posibles, busca todos los valores actuales en otros
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# artículos del mismo sitio
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def values
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2020-10-04 00:32:32 +00:00
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site.everything_of(name, lang: post&.lang&.value)
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2019-08-06 17:54:17 +00:00
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end
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2020-07-21 22:19:40 +00:00
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# Valor actual o por defecto. Al memoizarlo podemos modificarlo
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# usando otros métodos que el de asignación.
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2019-08-06 17:54:17 +00:00
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def value
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2020-08-20 23:38:31 +00:00
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self[:value] ||= if private?
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decrypt document.data.fetch(name.to_s, default_value)
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else
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document.data.fetch(name.to_s, default_value)
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end
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2019-08-06 23:17:29 +00:00
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end
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# Detecta si el valor está vacío
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def empty?
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value.blank?
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end
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# Comprueba si el metadato es válido
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def valid?
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validate
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end
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def validate
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self.errors = []
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2020-07-02 14:26:00 +00:00
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errors << I18n.t('metadata.cant_be_empty') unless can_be_empty?
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2019-08-06 23:17:29 +00:00
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errors.empty?
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end
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2020-07-21 22:34:15 +00:00
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# Usa el valor por defecto para generar el formato de StrongParam
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# necesario.
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#
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# @return [Symbol,Hash]
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2019-08-13 23:33:57 +00:00
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def to_param
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2020-07-21 22:34:15 +00:00
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case default_value
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when Hash then { name => default_value.keys.map(&:to_sym) }
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when Array then { name => [] }
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else name
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end
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2019-08-13 23:33:57 +00:00
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end
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2020-05-23 18:42:12 +00:00
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def to_s
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value.to_s
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end
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2019-08-13 23:33:57 +00:00
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# Decide si el metadato se coloca en el front_matter o no
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def front_matter?
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true
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end
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2019-08-16 23:25:07 +00:00
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def array?
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type == 'array'
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end
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2019-08-22 01:09:29 +00:00
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# En caso de que algún campo necesite realizar acciones antes de ser
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# guardado
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def save
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2020-02-12 21:24:54 +00:00
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self[:value] = sanitize value
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2020-08-20 23:38:31 +00:00
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self[:value] = encrypt(value) if private?
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2019-08-22 01:09:29 +00:00
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true
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end
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2020-07-22 23:35:43 +00:00
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def related_posts?
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false
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end
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def related_methods
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raise NotImplementedError
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end
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2020-08-20 23:38:31 +00:00
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# Determina si el campo es privado y debería ser cifrado
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def private?
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!!layout.metadata.dig(name, 'private')
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end
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2019-08-06 23:17:29 +00:00
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private
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# Si es obligatorio no puede estar vacío
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def can_be_empty?
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true unless required && empty?
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2019-08-06 17:54:17 +00:00
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end
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2020-02-12 21:24:54 +00:00
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# No usamos sanitize_action_text_content porque espera un ActionText
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#
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# Ver ActionText::ContentHelper#sanitize_action_text_content
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def sanitize(string)
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2020-06-16 22:20:22 +00:00
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return if string.nil?
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2020-02-12 21:24:54 +00:00
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return string unless string.is_a? String
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2020-08-15 14:58:28 +00:00
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sanitizer.sanitize(string.tr("\r", ''),
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2020-02-12 21:24:54 +00:00
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tags: allowed_tags,
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2020-11-16 16:15:23 +00:00
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attributes: allowed_attributes).strip.html_safe
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2020-11-16 16:09:04 +00:00
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end
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2020-11-14 21:02:30 +00:00
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def sanitizer
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@sanitizer ||= Rails::Html::Sanitizer.safe_list_sanitizer.new
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end
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def allowed_attributes
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2020-11-16 20:05:07 +00:00
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@allowed_attributes ||= %w[style href src alt controls data-align].freeze
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2020-11-14 21:02:30 +00:00
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end
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def allowed_tags
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2020-11-16 16:09:04 +00:00
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@allowed_tags ||= %w[strong em del u mark p h1 h2 h3 h4 h5 h6 ul ol li img iframe audio video div].freeze
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2020-02-12 21:24:54 +00:00
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end
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2020-08-20 23:38:31 +00:00
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# Decifra el valor
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#
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# XXX: Otros tipos de valores necesitan implementar su propio método
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# de decifrado (Array).
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def decrypt(value)
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return value if value.blank?
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box.decrypt_str value.to_s
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rescue Lockbox::DecryptionError => e
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ExceptionNotifier.notify_exception(e)
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I18n.t('lockbox.help.decryption_error')
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end
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# Cifra el valor.
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#
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# XXX: Otros tipos de valores necesitan implementar su propio método
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# de cifrado (Array).
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def encrypt(value)
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box.encrypt value.to_s
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end
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# Genera una lockbox a partir de la llave privada del sitio
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#
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# @return [Lockbox]
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def box
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@box ||= Lockbox.new key: site.private_key, padding: true, encode: true
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end
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2019-08-06 17:54:17 +00:00
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end
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