comparison .svn/pristine/22/229053adf4d0f0cdc30b283c6478a18c47c6fe1d.svn-base @ 1298:4f746d8966dd redmine_2.3_integration

Merge from redmine-2.3 branch to create new branch redmine-2.3-integration

+if RUBY_VERSION < '1.9'
+  require 'iconv'
+end
+
+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|
+        if str.respond_to?(:force_encoding)
+          begin
+            str.force_encoding(encoding)
+            utf8 = str.encode('UTF-8')
+            return utf8 if utf8.valid_encoding?
+          rescue
+            # do nothing here and try the next encoding
+          end
+        else
+          begin
+            return Iconv.conv('UTF-8', encoding, str)
+          rescue Iconv::Failure
+            # do nothing here and try the next encoding
+          end
+        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