Class: UrlValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
lib/href_sanitizer/url_validator.rb

Overview

ActiveModel validator for URLs. Registered as ‘url:` so it’s a drop-in replacement for custom URLValidators.

Usage:

validates :website, url: true
validates :website, url: { no_local: true }, allow_blank: true
validates :website, url: { schemes: %w[https] }
validates :lien_dpo, url: { accept_email: true }

Class name is UrlValidator, but we also alias as URLValidator to support apps with ‘inflect.acronym ’URL’‘ (which makes Rails resolve `validates :field, url: true` to URLValidator).

Constant Summary collapse

EMAIL_REGEXP = 
/\A[^@\s]+@[^@\s]+\z/

Instance Method Summary collapse

Instance Method Details

#validate_each(record, attribute, value) ⇒ Object 



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# File 'lib/href_sanitizer/url_validator.rb', line 23

def validate_each(record, attribute, value)
  stripped = value.to_s.strip

  # Accept bare email addresses when accept_email: true
  if options.fetch(:accept_email, false) && stripped.match?(EMAIL_REGEXP)
    return
  end

  uri = parse(stripped)
  unless uri
    record.errors.add(attribute, options.fetch(:message, :url))
    return
  end

  allowed_schemes = options.fetch(:schemes, %w[http https])
  unless uri.scheme&.downcase&.in?(allowed_schemes)
    record.errors.add(attribute, options.fetch(:message, :url))
    return
  end

  unless HrefSanitizer::UrlSanitizer.allowed_uri?(stripped)
    record.errors.add(attribute, options.fetch(:message, :url))
    return
  end

  if options.fetch(:no_local, false)
    unless HrefSanitizer::UrlSanitizer.public_url?(stripped)
      record.errors.add(attribute, options.fetch(:message, :private_ip_url))
    end
  end
end