require 'iconv' module Redmine module CodesetUtil def self.replace_invalid_utf8(str) return str if str.nil? if str.respond_to?(:force_encoding) str.force_encoding('UTF-8') if ! str.valid_encoding? str = str.encode("US-ASCII", :invalid => :replace, :undef => :replace, :replace => '?').encode("UTF-8") end elsif RUBY_PLATFORM == 'java' begin ic = Iconv.new('UTF-8', 'UTF-8') str = ic.iconv(str) rescue str = str.gsub(%r{[^\r\n\t\x20-\x7e]}, '?') end else ic = Iconv.new('UTF-8', 'UTF-8') txtar = "" begin txtar += ic.iconv(str) rescue Iconv::IllegalSequence txtar += $!.success str = '?' + $!.failed[1,$!.failed.length] retry rescue txtar += $!.success end str = txtar end str end def self.to_utf8(str, encoding) return str if str.nil? str.force_encoding("ASCII-8BIT") if str.respond_to?(:force_encoding) if str.empty? str.force_encoding("UTF-8") if str.respond_to?(:force_encoding) return str end enc = encoding.blank? ? "UTF-8" : encoding if str.respond_to?(:force_encoding) if enc.upcase != "UTF-8" str.force_encoding(enc) str = str.encode("UTF-8", :invalid => :replace, :undef => :replace, :replace => '?') else str.force_encoding("UTF-8") if ! str.valid_encoding? str = str.encode("US-ASCII", :invalid => :replace, :undef => :replace, :replace => '?').encode("UTF-8") end end elsif RUBY_PLATFORM == 'java' begin ic = Iconv.new('UTF-8', enc) str = ic.iconv(str) rescue str = str.gsub(%r{[^\r\n\t\x20-\x7e]}, '?') end else ic = Iconv.new('UTF-8', enc) txtar = "" begin txtar += ic.iconv(str) rescue Iconv::IllegalSequence txtar += $!.success str = '?' + $!.failed[1,$!.failed.length] retry rescue txtar += $!.success end str = txtar end str end def self.to_utf8_by_setting(str) return str if str.nil? str = self.to_utf8_by_setting_internal(str) if str.respond_to?(:force_encoding) str.force_encoding('UTF-8') end str end def self.to_utf8_by_setting_internal(str) return str if str.nil? if str.respond_to?(:force_encoding) str.force_encoding('ASCII-8BIT') end return str if str.empty? return str if /\A[\r\n\t\x20-\x7e]*\Z/n.match(str) # for us-ascii if str.respond_to?(:force_encoding) str.force_encoding('UTF-8') end encodings = Setting.repositories_encodings.split(',').collect(&:strip) encodings.each do |encoding| begin return Iconv.conv('UTF-8', encoding, str) rescue Iconv::Failure # do nothing here and try the next encoding end end str = self.replace_invalid_utf8(str) if str.respond_to?(:force_encoding) str.force_encoding('UTF-8') end str end def self.from_utf8(str, encoding) str ||= '' if str.respond_to?(:force_encoding) str.force_encoding('UTF-8') if encoding.upcase != 'UTF-8' str = str.encode(encoding, :invalid => :replace, :undef => :replace, :replace => '?') else str = self.replace_invalid_utf8(str) end elsif RUBY_PLATFORM == 'java' begin ic = Iconv.new(encoding, 'UTF-8') str = ic.iconv(str) rescue str = str.gsub(%r{[^\r\n\t\x20-\x7e]}, '?') end else ic = Iconv.new(encoding, 'UTF-8') txtar = "" begin txtar += ic.iconv(str) rescue Iconv::IllegalSequence txtar += $!.success str = '?' + $!.failed[1, $!.failed.length] retry rescue txtar += $!.success end str = txtar end end end end