37 lines
1.1 KiB
Ruby
37 lines
1.1 KiB
Ruby
class StrictEmailValidator < ActiveModel::EachValidator
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# default devise email is : /\A[^@\s]+@[^@\s]+\z/
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# saying that it's quite permissive
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# but we want more, we want to ensure it's a domain with extension
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# so we append \.[A-Za-z]{2,}
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REGEXP = /\A[^@\s]+@[^@\s\.]+\.[^@\s]{2,}\z/
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def validate_each(record, attribute, value)
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if value.present? && !regexp_for(record).match?(value)
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record.errors.add(attribute, :invalid_email_format)
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end
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end
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def regexp_for(record)
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if StrictEmailValidator.elligible_to_new_validation?(record)
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REGEXP
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else
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Devise.email_regexp
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end
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end
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def self.elligible_to_new_validation?(record)
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return false if !strict_validation_enabled?
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return false if (record.created_at || Time.zone.now) < date_since_strict_email_validation
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true
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end
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def self.strict_validation_enabled?
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ENV.key?('STRICT_EMAIL_VALIDATION_STARTS_AT')
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end
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def self.date_since_strict_email_validation
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DateTime.parse(ENV['STRICT_EMAIL_VALIDATION_STARTS_AT'])
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rescue
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DateTime.new(1789, 5, 5, 0, 0) # french revolution, ds was not yet launched
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end
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end
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