Class: Validators::Hostname

Inherits:
Object
  • Object
show all
Defined in:
lib/validators/hostname.rb

Class Method Summary collapse

Class Method Details

.valid?(host) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/validators/hostname.rb', line 5

def self.valid?(host)
  host = host.to_s
  uri = URI(host)

  host.present? &&
    uri.host.nil? &&
    uri.scheme.nil? &&
    uri.fragment.nil? &&
    uri.query.nil? &&
    uri.path == host &&
    host.split(".").all? {|label| valid_label?(label) } &&
    host.size <= 255 &&
    Validators::TLD.host_with_valid_tld?(host)
rescue URI::InvalidURIError
  false
end

.valid_label?(label) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/validators/hostname.rb', line 22

def self.valid_label?(label)
  !label.start_with?("-") &&
    !label.match(/\A\d+\z/) &&
    label.match(/\A[a-z0-9-]{1,63}\z/i)
end