Module: Mail::Parsers::ContentDispositionParser

Extended by:
Mail::ParserTools
Defined in:
lib/mail/parsers/content_disposition_parser.rb

Defined Under Namespace

Classes: ContentDispositionStruct

Class Attribute Summary collapse

Class Method Summary collapse

Methods included from Mail::ParserTools

chars

Class Attribute Details

._eof_actionsObject

Returns the value of attribute _eof_actions


527
528
529
# File 'lib/mail/parsers/content_disposition_parser.rb', line 527

def _eof_actions
  @_eof_actions
end

._index_offsetsObject

Returns the value of attribute _index_offsets


51
52
53
# File 'lib/mail/parsers/content_disposition_parser.rb', line 51

def _index_offsets
  @_index_offsets
end

._indiciesObject

Returns the value of attribute _indicies


64
65
66
# File 'lib/mail/parsers/content_disposition_parser.rb', line 64

def _indicies
  @_indicies
end

._key_spansObject

Returns the value of attribute _key_spans


38
39
40
# File 'lib/mail/parsers/content_disposition_parser.rb', line 38

def _key_spans
  @_key_spans
end

._trans_actionsObject

Returns the value of attribute _trans_actions


507
508
509
# File 'lib/mail/parsers/content_disposition_parser.rb', line 507

def _trans_actions
  @_trans_actions
end

._trans_keysObject

Returns the value of attribute _trans_keys


13
14
15
# File 'lib/mail/parsers/content_disposition_parser.rb', line 13

def _trans_keys
  @_trans_keys
end

._trans_targsObject

Returns the value of attribute _trans_targs


487
488
489
# File 'lib/mail/parsers/content_disposition_parser.rb', line 487

def _trans_targs
  @_trans_targs
end

.en_comment_tailObject

Returns the value of attribute en_comment_tail


553
554
555
# File 'lib/mail/parsers/content_disposition_parser.rb', line 553

def en_comment_tail
  @en_comment_tail
end

.en_mainObject

Returns the value of attribute en_main


557
558
559
# File 'lib/mail/parsers/content_disposition_parser.rb', line 557

def en_main
  @en_main
end

.errorObject

Returns the value of attribute error


548
549
550
# File 'lib/mail/parsers/content_disposition_parser.rb', line 548

def error
  @error
end

.first_finalObject

Returns the value of attribute first_final


544
545
546
# File 'lib/mail/parsers/content_disposition_parser.rb', line 544

def first_final
  @first_final
end

.startObject

Returns the value of attribute start


540
541
542
# File 'lib/mail/parsers/content_disposition_parser.rb', line 540

def start
  @start
end

Class Method Details

.parse(data) ⇒ Object


561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
# File 'lib/mail/parsers/content_disposition_parser.rb', line 561

def self.parse(data)
  data = data.dup.force_encoding(Encoding::ASCII_8BIT) if data.respond_to?(:force_encoding)

  content_disposition = ContentDispositionStruct.new("", [])
  return content_disposition if Mail::Utilities.blank?(data)

  # Parser state
  disp_type_s = param_attr_s = param_attr = qstr_s = qstr = param_val_s = nil

  # 5.1 Variables Used by Ragel
  p = 0
  eof = pe = data.length
  stack = []

  begin
    p ||= 0
    pe ||= data.length
    cs = start
    top = 0
  end

  begin
    testEof = false
    _slen, _trans, _keys, _inds, _acts, _nacts = nil
    _goto_level = 0
    _resume = 10
    _eof_trans = 15
    _again = 20
    _test_eof = 30
    _out = 40
    while true
      if _goto_level <= 0
        if p == pe
          _goto_level = _test_eof
          next
        end
        if cs == 0
          _goto_level = _out
          next
        end
      end
      if _goto_level <= _resume
        _keys = cs << 1
        _inds = _index_offsets[cs]
        _slen = _key_spans[cs]
        _wide = data[p].ord
        _trans = if (_slen > 0 &&
                     _trans_keys[_keys] <= _wide &&
                     _wide <= _trans_keys[_keys + 1])
                   _indicies[_inds + _wide - _trans_keys[_keys]]
                 else
                   _indicies[_inds + _slen]
                 end
        cs = _trans_targs[_trans]
        if _trans_actions[_trans] != 0
          case _trans_actions[_trans]
          when 1
            begin
              disp_type_s = p
            end
          when 17
            begin
              content_disposition.disposition_type = chars(data, disp_type_s, p - 1).downcase
            end
          when 2
            begin
              param_attr_s = p
            end
          when 4
            begin
              param_attr = chars(data, param_attr_s, p - 1)
            end
          when 7
            begin
              qstr_s = p
            end
          when 9
            begin
              qstr = chars(data, qstr_s, p - 1)
            end
          when 5
            begin
              param_val_s = p
            end
          when 18
            begin
              if param_attr.nil?
                raise Mail::Field::ParseError.new(Mail::ContentDispositionElement, data, "no attribute for value")
              end

              # Use quoted string value if one exists, otherwise use parameter value
              value = qstr || chars(data, param_val_s, p - 1)

              content_disposition.parameters << {param_attr => value}
              param_attr = nil
              qstr = nil
            end
          when 10
            begin
            end
          when 13
            begin
            end
          when 3
            begin
              begin
                stack[top] = cs
                top += 1
                cs = 28
                _goto_level = _again
                next
              end
            end
          when 16
            begin
              begin
                top -= 1
                cs = stack[top]
                _goto_level = _again
                next
              end
            end
          when 8
            begin
              qstr_s = p
            end
            begin
              qstr = chars(data, qstr_s, p - 1)
            end
          when 6
            begin
              param_val_s = p
            end
            begin
              begin
                stack[top] = cs
                top += 1
                cs = 28
                _goto_level = _again
                next
              end
            end
          when 22
            begin
              if param_attr.nil?
                raise Mail::Field::ParseError.new(Mail::ContentDispositionElement, data, "no attribute for value")
              end

              # Use quoted string value if one exists, otherwise use parameter value
              value = qstr || chars(data, param_val_s, p - 1)

              content_disposition.parameters << {param_attr => value}
              param_attr = nil
              qstr = nil
            end
            begin
              begin
                stack[top] = cs
                top += 1
                cs = 28
                _goto_level = _again
                next
              end
            end
          when 12
            begin
            end
            begin
              param_attr_s = p
            end
          when 20
            begin
            end
            begin
              if param_attr.nil?
                raise Mail::Field::ParseError.new(Mail::ContentDispositionElement, data, "no attribute for value")
              end

              # Use quoted string value if one exists, otherwise use parameter value
              value = qstr || chars(data, param_val_s, p - 1)

              content_disposition.parameters << {param_attr => value}
              param_attr = nil
              qstr = nil
            end
          when 11
            begin
            end
            begin
              begin
                stack[top] = cs
                top += 1
                cs = 28
                _goto_level = _again
                next
              end
            end
          when 14
            begin
            end
            begin
              begin
                stack[top] = cs
                top += 1
                cs = 28
                _goto_level = _again
                next
              end
            end
          when 15
            begin
            end
            begin
              begin
                top -= 1
                cs = stack[top]
                _goto_level = _again
                next
              end
            end
          when 19
            begin
              begin
                stack[top] = cs
                top += 1
                cs = 28
                _goto_level = _again
                next
              end
            end
            begin
              if param_attr.nil?
                raise Mail::Field::ParseError.new(Mail::ContentDispositionElement, data, "no attribute for value")
              end

              # Use quoted string value if one exists, otherwise use parameter value
              value = qstr || chars(data, param_val_s, p - 1)

              content_disposition.parameters << {param_attr => value}
              param_attr = nil
              qstr = nil
            end
          when 21
            begin
            end
            begin
              begin
                stack[top] = cs
                top += 1
                cs = 28
                _goto_level = _again
                next
              end
            end
            begin
              if param_attr.nil?
                raise Mail::Field::ParseError.new(Mail::ContentDispositionElement, data, "no attribute for value")
              end

              # Use quoted string value if one exists, otherwise use parameter value
              value = qstr || chars(data, param_val_s, p - 1)

              content_disposition.parameters << {param_attr => value}
              param_attr = nil
              qstr = nil
            end
          end
        end
      end
      if _goto_level <= _again
        if cs == 0
          _goto_level = _out
          next
        end
        p += 1
        if p != pe
          _goto_level = _resume
          next
        end
      end
      if _goto_level <= _test_eof
        if p == eof
          case _eof_actions[cs]
          when 17
            begin
              content_disposition.disposition_type = chars(data, disp_type_s, p - 1).downcase
            end
          when 18
            begin
              if param_attr.nil?
                raise Mail::Field::ParseError.new(Mail::ContentDispositionElement, data, "no attribute for value")
              end

              # Use quoted string value if one exists, otherwise use parameter value
              value = qstr || chars(data, param_val_s, p - 1)

              content_disposition.parameters << {param_attr => value}
              param_attr = nil
              qstr = nil
            end
          when 10
            begin
            end
          when 20
            begin
            end
            begin
              if param_attr.nil?
                raise Mail::Field::ParseError.new(Mail::ContentDispositionElement, data, "no attribute for value")
              end

              # Use quoted string value if one exists, otherwise use parameter value
              value = qstr || chars(data, param_val_s, p - 1)

              content_disposition.parameters << {param_attr => value}
              param_attr = nil
              qstr = nil
            end
          end
        end
      end
      if _goto_level <= _out
        break
      end
    end
  end

  if p != eof || cs < 40
    raise Mail::Field::IncompleteParseError.new(Mail::ContentDispositionElement, data, p)
  end

  content_disposition
end