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# encoding: utf-8
# frozen_string_literal: true
require 'mail/fields/named_structured_field'
require 'mail/utilities'
module Mail
class ContentIdField < NamedStructuredField #:nodoc:
NAME = 'Content-ID'
def self.singular?
true
end
def initialize(value = nil, charset = nil)
value = Mail::Utilities.generate_message_id if Utilities.blank?(value)
super value, charset
end
def element
@element ||= Mail::MessageIdsElement.new(value)
end
def content_id
element.message_id
end
private
def do_decode
"<#{content_id}>"
end
def do_encode
"#{name}: #{do_decode}\r\n"
end
end
end
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