annotate Lib/IMPL/DOM/Schema/NodeList.pm @ 94:79bf75223afe

Fixed security related bugs
author wizard
date Thu, 29 Apr 2010 01:31:27 +0400
parents 16ada169ca75
children df6b4f054957
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 package IMPL::DOM::Schema::NodeList;
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2 use strict;
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3 use warnings;
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4 use base qw(IMPL::DOM::Node);
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5
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6 use IMPL::Class::Property;
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7 require IMPL::DOM::Schema::ValidationError;
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8
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9 our %CTOR = (
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10 'IMPL::DOM::Node' => sub { nodeName => 'NodeList' }
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11 );
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12
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13 BEGIN {
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14 public property messageUnexpected => prop_all;
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15 public property messageNodesRequired => prop_all;
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16 }
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17
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18 sub CTOR {
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19 my ($this,%args) = @_;
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20
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21 $this->messageUnexpected($args{messageUnexpected} || 'A %Node.nodeName% isn\'t allowed in %Node.parentNode.path%');
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22 $this->messageNodesRequired($args{messageNodesRequired} || 'A %Schema.name% is required in the node %Node.path%');
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23 }
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24
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25 sub Validate {
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26 my ($this,$node) = @_;
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27
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28 my @nodes = map {
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29 {nodeName => $_->name, anyNode => $_->isa('IMPL::DOM::Schema::AnyNode') , Schema => $_, Max => $_->maxOccur eq 'unbounded' ? undef : $_->maxOccur, Min => $_->minOccur, Seen => 0 }
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30 } @{$this->childNodes};
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31
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32 my $info = shift @nodes;
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33
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34 foreach my $child ( @{$node->childNodes} ) {
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35 #skip schema elements
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36 while ($info and not $info->{anyNode} and $info->{nodeName} ne $child->nodeName) {
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37 # if possible of course :)
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38 return new IMPL::DOM::Schema::ValidationError (
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39 Message => $this->messageUnexpected,
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40 Node => $child,
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41 Schema => $info->{Schema},
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42 Source => $this
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43 ) if $info->{Min} > $info->{Seen};
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44
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45 $info = shift @nodes;
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46 }
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47
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48 # return error if no more children allowed
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49 return new IMPL::DOM::Schema::ValidationError (
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50 Message => $this->messageUnexpected,
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51 Node => $child,
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52 Source => $this
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53 ) unless $info;
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54
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55 # it's ok, we found schema element for child
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56 # but it may be any node or switching node wich would not satisfy current child
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57
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58 # validate
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59 while (my @errors = $info->{Schema}->Validate($child)) {
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60 if( $info->{anyNode} and $info->{Seen} >= $info->{Min} ) {
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61 # in case of any or switch node, skip it if possible
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62 next if $info = shift @nodes;
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63 }
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64 return @errors;
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65 }
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66
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67 $info->{Seen}++;
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68
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69 # check count limits
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70 return new IMPL::DOM::Schema::ValidationError (
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71 Error => 1,
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72 Message => $this->messageUnexpected,
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73 Node => $child,
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74 Source => $this,
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75 ) if $info->{Max} and $info->{Seen} > $info->{Max};
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76 }
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77
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78 # no more children left (but may be should :)
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79 while ($info) {
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80 return new IMPL::DOM::Schema::ValidationError (
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81 Error => 1,
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82 Message => $this->messageNodesRequired,
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83 Node => $node,
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84 Source => $this,
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85 Schema => $info->{Schema}
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86 ) if $info->{Seen} < $info->{Min};
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87
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88 $info = shift @nodes;
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89 }
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90 return;
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91 }
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92
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93 1;
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94
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95 __END__
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96
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97 =pod
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98
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99 =head1 DESCRIPTION
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100
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101 Содержимое для сложного узла. Порядок важен. Дочерними элементами могут быть
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102 только C<IMPL::DOM::Schema::ComplexNode> и C<IMPL::DOM::Schema::SimpleNode>.
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103
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104 =cut