# File lib/mail/version_specific/ruby_1_9.rb, line 50 def Ruby19.b_value_decode(str) match = str.match(/\=\?(.+)?\?[Bb]\?(.+)?\?\=/) if match charset = match[1] str = Ruby19.decode_base64(match[2]) str.force_encoding(pick_encoding(charset)) end decoded = str.encode("utf-8", :invalid => :replace, :replace => "") decoded.valid_encoding? ? decoded : decoded.encode("utf-16le", :invalid => :replace, :replace => "").encode("utf-8") end
# File lib/mail/version_specific/ruby_1_9.rb, line 45 def Ruby19.b_value_encode(str, encoding = nil) encoding = str.encoding.to_s [Ruby19.encode_base64(str), encoding] end
# File lib/mail/version_specific/ruby_1_9.rb, line 23 def Ruby19.bracket( str ) str = $1 if str =~ /^\<(.*)?\>$/ str = escape_bracket( str ) '<' + str + '>' end
# File lib/mail/version_specific/ruby_1_9.rb, line 29 def Ruby19.decode_base64(str) str.unpack( 'm' ).first end
# File lib/mail/version_specific/ruby_1_9.rb, line 33 def Ruby19.encode_base64(str) [str].pack( 'm' ) end
# File lib/mail/version_specific/ruby_1_9.rb, line 18 def Ruby19.escape_bracket( str ) re = /(?<!\\)([\<\>])/ # Only match unescaped brackets str.gsub(re) { |s| '\' + s } end
Escapes any parenthesis in a string that are unescaped this uses a Ruby 1.9.1 regexp feature of negative look behind
# File lib/mail/version_specific/ruby_1_9.rb, line 7 def Ruby19.escape_paren( str ) re = /(?<!\\)([\(\)])/ # Only match unescaped parens str.gsub(re) { |s| '\' + s } end
# File lib/mail/version_specific/ruby_1_9.rb, line 41 def Ruby19.get_constant(klass, string) klass.const_get( string ) end
# File lib/mail/version_specific/ruby_1_9.rb, line 37 def Ruby19.has_constant?(klass, string) klass.const_defined?( string, false ) end
# File lib/mail/version_specific/ruby_1_9.rb, line 82 def Ruby19.param_decode(str, encoding) string = uri_parser.unescape(str) string.force_encoding(encoding) if encoding string end
# File lib/mail/version_specific/ruby_1_9.rb, line 88 def Ruby19.param_encode(str) encoding = str.encoding.to_s.downcase language = Configuration.instance.param_encode_language "#{encoding}'#{language}'#{uri_parser.escape(str)}" end
# File lib/mail/version_specific/ruby_1_9.rb, line 12 def Ruby19.paren( str ) str = $1 if str =~ /^\((.*)?\)$/ str = escape_paren( str ) '(' + str + ')' end
Pick a Ruby encoding corresponding to the message charset. Most charsets have a Ruby encoding, but some need manual aliasing here.
TODO: add this as a test somewhere:
Encoding.list.map { |e| [e.to_s.upcase == pick_encoding(e.to_s.downcase.gsub("-", "")), e.to_s] }.select {|a,b| !b} Encoding.list.map { |e| [e.to_s == pick_encoding(e.to_s), e.to_s] }.select {|a,b| !b}
# File lib/mail/version_specific/ruby_1_9.rb, line 104 def Ruby19.pick_encoding(charset) case charset # ISO-8859-15, ISO-2022-JP and alike when /iso-?(\d{4})-?(\w{1,2})/ "ISO-#{$1}-#{$2}" # "ISO-2022-JP-KDDI" and alike when /iso-?(\d{4})-?(\w{1,2})-?(\w*)/ "ISO-#{$1}-#{$2}-#{$3}" # UTF-8, UTF-32BE and alike when /utf-?(\d{1,2})?(\w{1,2})/ "UTF-#{$1}#{$2}".gsub(/\A(UTF-(?:16|32))\z/, '\1BE') # Windows-1252 and alike when /Windows-?(.*)/ "Windows-#{$1}" when /^8bit$/ Encoding::ASCII_8BIT # Microsoft-specific alias for CP949 (Korean) when 'ks_c_5601-1987' Encoding::CP949 # Wrongly written Shift_JIS (Japanese) when 'shift-jis' Encoding::Shift_JIS # GB2312 (Chinese charset) is a subset of GB18030 (its replacement) when /gb2312/ Encoding::GB18030 else charset end end
# File lib/mail/version_specific/ruby_1_9.rb, line 66 def Ruby19.q_value_decode(str) match = str.match(/\=\?(.+)?\?[Qq]\?(.+)?\?\=/) if match charset = match[1] string = match[2].gsub(/_/, '=20') # Remove trailing = if it exists in a Q encoding string = string.sub(/\=$/, '') str = Encodings::QuotedPrintable.decode(string) str.force_encoding(pick_encoding(charset)) end decoded = str.encode("utf-8", :invalid => :replace, :replace => "") decoded.valid_encoding? ? decoded : decoded.encode("utf-16le", :invalid => :replace, :replace => "").encode("utf-8") rescue Encoding::UndefinedConversionError str.dup.force_encoding("utf-8") end
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