demarches-normaliennes/app/validators/strict_email_validator.rb

36 lines
1.2 KiB
Ruby

class StrictEmailValidator < ActiveModel::EachValidator
# default devise email is : /\A[^@\s]+@[^@\s]+\z/
# saying that it's quite permissive
# but we want more, we want to ensure it's a domain with extension
# so we append \.[A-Za-z]{2,}
TRUEMAIL_REGEX_DOMAIN = /[\p{L}0-9]+([-.]{1}[\p{L}\p{N}\p{Pd}]*[\p{L}\p{N}]+)*\.\p{L}{2,63}/i.freeze
TRUEMAIL_REGEX_EMAIL_PATTERN = %r{(?=\A.{6,255}\z)(\A([\p{L}0-9]+[\w\p{L}.+!~,'&%#*^`{}|\-/?=$]*)@(#{TRUEMAIL_REGEX_DOMAIN})\z)}.freeze
REGEXP = TRUEMAIL_REGEX_EMAIL_PATTERN
DATE_SINCE_STRICT_EMAIL_VALIDATION = Date.parse(ENV.fetch('STRICT_EMAIL_VALIDATION_STARTS_ON')) rescue 0
def validate_each(record, attribute, value)
if value.present? && !regexp_for(record).match?(value)
record.errors.add(attribute, :invalid_email_format)
end
end
def regexp_for(record)
if StrictEmailValidator.eligible_to_new_validation?(record)
REGEXP
else
Devise.email_regexp
end
end
def self.eligible_to_new_validation?(record)
return false if !strict_validation_enabled?
return false if (record.created_at || Time.zone.now) < DATE_SINCE_STRICT_EMAIL_VALIDATION
true
end
def self.strict_validation_enabled?
ENV.key?('STRICT_EMAIL_VALIDATION_STARTS_ON')
end
end