1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
# $Id: Content.pm,v 1.6 2004/05/31 17:20:07 btrott Exp $
package XML::Atom::Content;
use strict;
use XML::Atom;
use base qw( XML::Atom::ErrorHandler );
use MIME::Base64 qw( encode_base64 decode_base64 );
use constant NS => 'http://purl.org/atom/ns#';
sub new {
my $class = shift;
my $content = bless {}, $class;
$content->init(@_) or return $class->error($content->errstr);
$content;
}
sub init {
my $content = shift;
my %param = @_ == 1 ? (Body => $_[0]) : @_;
my $elem;
unless ($elem = $param{Elem}) {
if (LIBXML) {
my $doc = XML::LibXML::Document->createDocument('1.0', 'utf-8');
$elem = $doc->createElementNS(NS, 'content');
$doc->setDocumentElement($elem);
} else {
$elem = XML::XPath::Node::Element->new('content');
}
}
$content->{elem} = $elem;
if ($param{Body}) {
$content->body($param{Body});
}
if ($param{Type}) {
$content->type($param{Type});
}
$content;
}
sub elem { $_[0]->{elem} }
sub type {
my $content = shift;
if (@_) {
$content->elem->setAttribute('type', shift);
}
$content->elem->getAttribute('type');
}
sub mode {
my $content = shift;
$content->elem->getAttribute('mode');
}
sub body {
my $content = shift;
my $elem = $content->elem;
if (@_) {
my $data = shift;
if (LIBXML) {
$elem->removeChildNodes;
} else {
$elem->removeChild($_) for $elem->getChildNodes;
}
if ($data =~ /[^\x09\x0a\x0d\x20-\x7f]/) {
if (LIBXML) {
$elem->appendChild(XML::LibXML::Text->new(encode_base64($data, '')));
} else {
$elem->appendChild(XML::XPath::Node::Text->new(encode_base64($data, '')));
}
$elem->setAttribute('mode', 'base64');
} else {
my $copy = '<div xmlns="http://www.w3.org/1999/xhtml">' .
$data .
'</div>';
my $node;
eval {
if (LIBXML) {
my $parser = XML::LibXML->new;
my $tree = $parser->parse_string($copy);
$node = $tree->getDocumentElement;
} else {
my $xp = XML::XPath->new(xml => $copy);
$node = (($xp->find('/')->get_nodelist)[0]->getChildNodes)[0]
if $xp;
}
};
if (!$@ && $node) {
$elem->appendChild($node);
$elem->setAttribute('mode', 'xml');
} else {
if (LIBXML) {
$elem->appendChild(XML::LibXML::Text->new($data));
} else {
$elem->appendChild(XML::XPath::Node::Text->new($data));
}
$elem->setAttribute('mode', 'escaped');
}
}
} else {
unless (exists $content->{__body}) {
my $mode = $elem->getAttribute('mode') || 'xml';
if ($mode eq 'xml') {
my @children = grep ref($_) =~ /Element/,
LIBXML ? $elem->childNodes : $elem->getChildNodes;
if (@children) {
if (@children == 1 && $children[0]->getLocalName eq 'div') {
@children =
LIBXML ? $children[0]->childNodes :
$children[0]->getChildNodes
}
$content->{__body} = '';
for my $n (@children) {
_remove_default_ns($n) if LIBXML;
$content->{__body} .= $n->toString(LIBXML ? 1 : 0);
}
} else {
$content->{__body} = LIBXML ? $elem->textContent : $elem->string_value;
}
} elsif ($mode eq 'base64') {
$content->{__body} = decode_base64(LIBXML ? $elem->textContent : $elem->string_value);
} elsif ($mode eq 'escaped') {
$content->{__body} = LIBXML ? $elem->textContent : $elem->string_value;
} else {
$content->{__body} = undef;
}
if ($] >= 5.008) {
require Encode;
Encode::_utf8_off($content->{__body});
}
}
}
$content->{__body};
}
sub _remove_default_ns {
my($node) = @_;
$node->setNamespace('http://www.w3.org/1999/xhtml', '')
if ref($node) =~ /Element$/;
for my $n ($node->childNodes) {
_remove_default_ns($n);
}
}
sub as_xml {
my $content = shift;
if (LIBXML) {
my $doc = XML::LibXML::Document->new('1.0', 'utf-8');
$doc->setDocumentElement($content->elem);
return $doc->toString(1);
} else {
return $content->elem->toString;
}
}
1;
|
