lib/CWMP/Request.pm

package CWMP::Request;

use warnings;
use strict;

use XML::Rules;
use CWMP::Tree;
use Data::Dump qw/dump/;
use Carp qw/confess cluck/;

=head1 NAME

CWMP::Request - parse SOAP request

=head1 METHODS

=head2 _tag

Get value of tag. Tag name is case insensitive (don't ask why),
we ignore namespaces and can take optional C<sub_key>
(usually C<_content>).

  _tag( $tag_hash, $name, $sub_key )

=cut

sub _tag {
        my ( $tag_hash, $name, $sub_key ) = @_;
        confess "need hash as first argument" unless ( ref $tag_hash eq 'HASH' );
        $name = (grep { m/^(?:\w+:)*$name$/i } keys %$tag_hash )[0];
#       $name =~ s/^\w+://;
        if ( defined $tag_hash->{$name} ) {
                if ( ! defined $sub_key ) {
                        return $tag_hash->{$name};
                } elsif ( defined $tag_hash->{$name}->{$sub_key} ) {
                        return $tag_hash->{$name}->{$sub_key};
                } else {
                        return if ( $name =~ m/^value$/i );
                        warn "can't find '$name/$sub_key' in ", dump( $tag_hash );
                        return;
                }
        } else {
                warn "can't find '$name' in ", dump( $tag_hash );
                return;
        }
}

our $state;     # FIXME check this!

my $tree = CWMP::Tree->new({ debug => 0 });

my $parser = XML::Rules->new(
#       start_rules => [
#               '^division_name,fax' => 'skip',
#       ],
        namespaces => {
                'http://schemas.xmlsoap.org/soap/envelope/' => 'soapenv',
                'http://schemas.xmlsoap.org/soap/encoding/' => 'soap',
                'http://www.w3.org/2001/XMLSchema' => 'xsd',
                'http://www.w3.org/2001/XMLSchema-instance' => 'xsi',
                'urn:dslforum-org:cwmp-1-0' => '',
        },
        rules => [
                #_default => 'content trim',
                x_default => sub {
                        my ($tag_name, $tag_hash, $context, $parent_data) = @_;
                        warn dump( $tag_name, $tag_hash, $context );
                },
                'ID' => sub {
                        my ($tag_name, $tag_hash, $context, $parent_data) = @_;
                        $state->{ID} = $tag_hash->{_content};
                },
                #
                # Inform
                #
                'Inform' => sub {
                        $state->{_dispatch} = 'InformResponse';         # what reponse to call
                },
                'DeviceId' => sub {
                        my ($tag_name, $tag_hash, $context, $parent_data) = @_;
                        foreach my $name ( keys %$tag_hash ) {
                                next if $name eq '_content';
                                my $key = $name;
                                $key =~ s/^\w+://;      # stip namespace
                                $state->{DeviceID}->{ $key } = _tag( $tag_hash, $name, '_content' );
                        }
                },
                'EventStruct' => sub {
                        my ($tag_name, $tag_hash, $context, $parent_data) = @_;
                        push @{ $state->{EventStruct} }, $tag_hash->{EventCode}->{_content};
                },
                qr/(MaxEnvelopes|CurrentTime|RetryCount)/ => sub {
                        my ($tag_name, $tag_hash, $context, $parent_data) = @_;
                        $state->{$tag_name} = $tag_hash->{_content};
                },
                'ParameterValueStruct' => sub {
                        my ($tag_name, $tag_hash, $context, $parent_data) = @_;
                        # Name/Value tags must be case insnesitive
                        my $value = (grep( /value/i, keys %$tag_hash ))[0];
                        $state->{Parameter}->{ _tag($tag_hash, 'Name', '_content') } = _tag($tag_hash, 'Value', '_content' );
                },
                #
                # GetRPCMethodsResponse
                #
                qr/^(?:^\w+:)*string$/ => 'content array',
                'MethodList' => sub {
                        my ($tag_name, $tag_hash, $context, $parent_data) = @_;
                        $state->{MethodList} = _tag( $tag_hash, 'string' );
                },
                #
                # GetParameterNamesResponse
                #
                'ParameterInfoStruct' => sub {
                        my ($tag_name, $tag_hash, $context, $parent_data) = @_;
                        my $name = _tag($tag_hash, 'Name', '_content');
                        my $writable = _tag($tag_hash, 'Writable', '_content' );

                        confess "need state" unless ( $state ); # don't remove!

                        # XXX dragons ahead: convert name to tree rewriting it into perl
                        my $s = '$state->{ParameterInfo}->' . $tree->name2perl( $name ) . "->{writable} = $writable;";
                        eval "$s";
                        confess "can't eval $s : $@" if ($@);

                        #warn "## state = dump( $state ), "\n";
                },
                #
                # Fault
                #
                'Fault' => sub {
                        my ($tag_name, $tag_hash, $context, $parent_data) = @_;
                        $state->{Fault} = {
                                FaultCode => _tag( $tag_hash, 'FaultCode', '_content' ),
                                FaultString => _tag( $tag_hash, 'FaultString', '_content' ),
                        };
                        warn "FAULT: ", $state->{Fault}->{FaultCode}, " ", $state->{Fault}->{FaultString}, "\n";
                }
        ]
);

=head2 parse

  my $state = CWMP::Request->parse( "<soap>request</soap>" );

=cut

sub parse {
        my $self = shift;

        my $xml = shift || confess "no xml?";

        $state = {};
        $parser->parsestring( $xml );
        return $state;
}

1;
1	dpavlin	31	package CWMP::Request;
2
3			use warnings;
4			use strict;
5
6			use XML::Rules;
7	dpavlin	103	use CWMP::Tree;
8	dpavlin	31	use Data::Dump qw/dump/;
9			use Carp qw/confess cluck/;
10
11			=head1 NAME
12
13			CWMP::Request - parse SOAP request
14
15			=head1 METHODS
16
17			=head2 _tag
18
19			Get value of tag. Tag name is case insensitive (don't ask why),
20			we ignore namespaces and can take optional C<sub_key>
21			(usually C<_content>).
22
23			_tag( $tag_hash, $name, $sub_key )
24
25			=cut
26
27			sub _tag {
28			my ( $tag_hash, $name, $sub_key ) = @_;
29			confess "need hash as first argument" unless ( ref $tag_hash eq 'HASH' );
30			$name = (grep { m/^(?:\w+:)*$name$/i } keys %$tag_hash )[0];
31			# $name =~ s/^\w+://;
32			if ( defined $tag_hash->{$name} ) {
33			if ( ! defined $sub_key ) {
34			return $tag_hash->{$name};
35			} elsif ( defined $tag_hash->{$name}->{$sub_key} ) {
36			return $tag_hash->{$name}->{$sub_key};
37			} else {
38			return if ( $name =~ m/^value$/i );
39			warn "can't find '$name/$sub_key' in ", dump( $tag_hash );
40			return;
41			}
42			} else {
43			warn "can't find '$name' in ", dump( $tag_hash );
44			return;
45			}
46			}
47
48	dpavlin	90	our $state; # FIXME check this!
49	dpavlin	31
50	dpavlin	103	my $tree = CWMP::Tree->new({ debug => 0 });
51
52	dpavlin	31	my $parser = XML::Rules->new(
53			# start_rules => [
54			# '^division_name,fax' => 'skip',
55			# ],
56			namespaces => {
57	dpavlin	62	'http://schemas.xmlsoap.org/soap/envelope/' => 'soapenv',
58			'http://schemas.xmlsoap.org/soap/encoding/' => 'soap',
59			'http://www.w3.org/2001/XMLSchema' => 'xsd',
60			'http://www.w3.org/2001/XMLSchema-instance' => 'xsi',
61	dpavlin	31	'urn:dslforum-org:cwmp-1-0' => '',
62			},
63			rules => [
64			#_default => 'content trim',
65			x_default => sub {
66			my ($tag_name, $tag_hash, $context, $parent_data) = @_;
67			warn dump( $tag_name, $tag_hash, $context );
68			},
69			'ID' => sub {
70			my ($tag_name, $tag_hash, $context, $parent_data) = @_;
71			$state->{ID} = $tag_hash->{_content};
72			},
73			#
74			# Inform
75			#
76	dpavlin	36	'Inform' => sub {
77	dpavlin	71	$state->{_dispatch} = 'InformResponse'; # what reponse to call
78	dpavlin	36	},
79	dpavlin	65	'DeviceId' => sub {
80	dpavlin	31	my ($tag_name, $tag_hash, $context, $parent_data) = @_;
81			foreach my $name ( keys %$tag_hash ) {
82			next if $name eq '_content';
83			my $key = $name;
84			$key =~ s/^\w+://; # stip namespace
85			$state->{DeviceID}->{ $key } = _tag( $tag_hash, $name, '_content' );
86			}
87			},
88	dpavlin	65	'EventStruct' => sub {
89	dpavlin	31	my ($tag_name, $tag_hash, $context, $parent_data) = @_;
90			push @{ $state->{EventStruct} }, $tag_hash->{EventCode}->{_content};
91			},
92			qr/(MaxEnvelopes\|CurrentTime\|RetryCount)/ => sub {
93			my ($tag_name, $tag_hash, $context, $parent_data) = @_;
94			$state->{$tag_name} = $tag_hash->{_content};
95			},
96	dpavlin	65	'ParameterValueStruct' => sub {
97	dpavlin	31	my ($tag_name, $tag_hash, $context, $parent_data) = @_;
98			# Name/Value tags must be case insnesitive
99			my $value = (grep( /value/i, keys %$tag_hash ))[0];
100			$state->{Parameter}->{ _tag($tag_hash, 'Name', '_content') } = _tag($tag_hash, 'Value', '_content' );
101			},
102			#
103			# GetRPCMethodsResponse
104			#
105			qr/^(?:^\w+:)*string$/ => 'content array',
106	dpavlin	65	'MethodList' => sub {
107	dpavlin	31	my ($tag_name, $tag_hash, $context, $parent_data) = @_;
108			$state->{MethodList} = _tag( $tag_hash, 'string' );
109	dpavlin	65	},
110	dpavlin	50	#
111	dpavlin	65	# GetParameterNamesResponse
112			#
113			'ParameterInfoStruct' => sub {
114			my ($tag_name, $tag_hash, $context, $parent_data) = @_;
115	dpavlin	90	my $name = _tag($tag_hash, 'Name', '_content');
116			my $writable = _tag($tag_hash, 'Writable', '_content' );
117
118			confess "need state" unless ( $state ); # don't remove!
119
120			# XXX dragons ahead: convert name to tree rewriting it into perl
121	dpavlin	103	my $s = '$state->{ParameterInfo}->' . $tree->name2perl( $name ) . "->{writable} = $writable;";
122	dpavlin	90	eval "$s";
123			confess "can't eval $s : $@" if ($@);
124
125	dpavlin	92	#warn "## state = dump( $state ), "\n";
126	dpavlin	65	},
127			#
128	dpavlin	50	# Fault
129			#
130	dpavlin	65	'Fault' => sub {
131	dpavlin	50	my ($tag_name, $tag_hash, $context, $parent_data) = @_;
132			$state->{Fault} = {
133			FaultCode => _tag( $tag_hash, 'FaultCode', '_content' ),
134			FaultString => _tag( $tag_hash, 'FaultString', '_content' ),
135			};
136			warn "FAULT: ", $state->{Fault}->{FaultCode}, " ", $state->{Fault}->{FaultString}, "\n";
137			}
138	dpavlin	31	]
139			);
140
141			=head2 parse
142
143			my $state = CWMP::Request->parse( "<soap>request</soap>" );
144
145			=cut
146
147			sub parse {
148			my $self = shift;
149
150			my $xml = shift \|\| confess "no xml?";
151
152			$state = {};
153			$parser->parsestring( $xml );
154			return $state;
155			}
156	dpavlin	32
157			1;