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module MailAddress |
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class Address |
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attr_accessor :phrase, :address, :original |
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def initialize(phrase, address, original) |
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@address = address |
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@phrase = phrase |
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@original = original |
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### validate afterwords |
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# parse failed or invalid address |
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unless (@address && @original.include?(@address)) && Address._check_address_with_regex(@address) |
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@address = nil |
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end |
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# invalid address |
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@phrase = original if @address.nil? |
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end |
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ATEXT = '[\-\w !#$%&\'*+/=?^`{|}~]' |
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def format(enquote = false) |
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addr = [] |
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return @original if @address.nil? |
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email_address = enquote ? quoted_address : @address |
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if [email protected]? && @phrase.length > 0 then |
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if @phrase.match(/\A\(/) && @phrase.match(/\)\z/) |
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addr.push(email_address) if [email protected]? && @address.length > 0 |
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addr.push(@phrase) |
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else |
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addr.push( |
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@phrase.match(/^(?:\s*#{ATEXT}\s*)+$/) ? @phrase |
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: @phrase.match(/(?<!\\)"/) ? @phrase |
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: %Q("#{@phrase}") |
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) |
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addr.push "<#{email_address}>" if [email protected]? && @address.length > 0 |
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end |
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elsif [email protected]? && @address.length > 0 then |
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addr.push(email_address) |
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end |
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addr.join(' ') |
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end |
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def name |
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phrase = @phrase.dup |
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name = Address._extract_name(phrase) |
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name.length > 0 ? name : nil |
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end |
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def host |
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addr = @address || ''; |
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i = addr.rindex('@') |
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i.nil? ? nil : addr[i + 1 .. -1] |
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end |
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def user |
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addr = @address || ''; |
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i = addr.rindex('@') |
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i.nil? ? addr : addr[0 ... i] |
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end |
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def quoted_address |
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if @address |
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if self.user.include?('..') || self.user.end_with?('.') |
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local_part = self.user.gsub(/(\A"|"\z)/, '') |
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return "\"#{local_part}\"@#{self.host}" |
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end |
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end |
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@address |
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end |
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private |
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# given a comment, attempt to extract a person's name |
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def self._extract_name(name) |
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# This function can be called as method as well |
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return '' if name.nil? || name == '' |
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# Using encodings, too hard. See Mail::Message::Field::Full. |
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return '' if name.match(/\=\?.*?\?\=/) |
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# trim whitespace |
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name.sub!(/^\s+/, '') |
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name.sub!(/\s+$/, '') |
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name.sub!(/\s+/, ' ') |
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# Disregard numeric names (e.g. [email protected]) |
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return "" if name.match(/^[\d ]+$/) |
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name.sub!(/^\((.*)\)$/, '\1') # remove outermost parenthesis |
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name.sub!(/^"(.*)"$/, '\1') # remove outer quotation marks |
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name.gsub!(/\\/, '') # remove all escapes |
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name.sub!(/^"(.*)"$/, '\1') # remove internal quotation marks |
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# some cleanup |
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name.gsub!(/\[[^\]]*\]/, '') |
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name.gsub!(/(^[\s'"]+|[\s'"]+$)/, '') |
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name.gsub!(/\s{2,}/, ' ') |
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name |
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end |
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def self._check_address_with_regex(email_address) |
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return nil unless email_address |
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# check if the address is compliant with RFC2822 |
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# regex check (see http://blog.livedoor.jp/dankogai/archives/51189905.html) |
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# email_address.match(/^(?:(?:(?:(?:[a-zA-Z0-9_!#\$\%&'*+\/=?\^`{}~|\-]+)(?:\.(?:[a-zA-Z0-9_!#\$\%&'*+\/=?\^`{}~|\-]+))*)|(?:"(?:\\[^\r\n]|[^\\"])*")))\@(?:(?:(?:(?:[a-zA-Z0-9_!#\$\%&'*+\/=?\^`{}~|\-]+)(?:\.(?:[a-zA-Z0-9_!#\$\%&'*+\/=?\^`{}~|\-]+))*)|(?:\[(?:\\\S|[\x21-\x5a\x5e-\x7e])*\])))$/) |
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# permit Docomo/Au address |
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EMAIL_ADDRESS_ =~ email_address |
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end |
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end |
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end |
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