/[cwmp]/google/trunk/lib/CWMP/Request.pm
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Contents of /google/trunk/lib/CWMP/Request.pm

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Revision 200 - (show annotations)
Wed Nov 14 19:23:32 2007 UTC (16 years, 6 months ago) by dpavlin
File size: 4734 byte(s)
 r212@brr:  dpavlin | 2007-11-14 20:23:06 +0100
 added Class::Trigger based triggers on SOAP requests from CPE

1 package CWMP::Request;
2
3 use warnings;
4 use strict;
5
6 use XML::Rules;
7 use CWMP::Tree;
8 use Data::Dump qw/dump/;
9 use Carp qw/confess cluck/;
10 use Class::Trigger;
11
12 =head1 NAME
13
14 CWMP::Request - parse SOAP request metods
15
16 =head1 CPE metods
17
18 All methods described below call triggers with same name
19
20 =cut
21
22 my $tree = CWMP::Tree->new({ debug => 0 });
23
24 our $state; # FIXME check this!
25
26 my $rules = [
27 #_default => 'content trim',
28 x_default => sub {
29 my ($tag_name, $tag_hash, $context, $parent_data) = @_;
30 warn dump( $tag_name, $tag_hash, $context );
31 },
32 'ID' => sub {
33 my ($tag_name, $tag_hash, $context, $parent_data) = @_;
34 $state->{ID} = $tag_hash->{_content};
35 },
36
37 'DeviceId' => sub {
38 my ($tag_name, $tag_hash, $context, $parent_data) = @_;
39 foreach my $name ( keys %$tag_hash ) {
40 next if $name eq '_content';
41 my $key = $name;
42 $key =~ s/^\w+://; # stip namespace
43 $state->{DeviceID}->{ $key } = _tag( $tag_hash, $name, '_content' );
44 }
45 },
46 'EventStruct' => sub {
47 my ($tag_name, $tag_hash, $context, $parent_data) = @_;
48 push @{ $state->{EventStruct} }, $tag_hash->{EventCode}->{_content};
49 },
50 qr/(MaxEnvelopes|CurrentTime|RetryCount)/ => sub {
51 my ($tag_name, $tag_hash, $context, $parent_data) = @_;
52 $state->{$tag_name} = $tag_hash->{_content};
53 },
54 'ParameterValueStruct' => sub {
55 my ($tag_name, $tag_hash, $context, $parent_data) = @_;
56 # Name/Value tags must be case insnesitive
57 my $value = (grep( /value/i, keys %$tag_hash ))[0];
58 $state->{Parameter}->{ _tag($tag_hash, 'Name', '_content') } = _tag($tag_hash, 'Value', '_content' );
59 },
60
61 ];
62
63 =head2 Inform
64
65 Generate InformResponse to CPE
66
67 =cut
68
69 push @$rules,
70 'Inform' => sub {
71 $state->{_dispatch} = 'InformResponse'; # what reponse to call
72 $state->{_trigger} = 'Inform';
73 };
74
75 =head2 GetRPCMethodsResponse
76
77 =cut
78
79 push @$rules,
80 qr/^(?:^\w+:)*string$/ => 'content array',
81 'MethodList' => sub {
82 my ($tag_name, $tag_hash, $context, $parent_data) = @_;
83 $state->{MethodList} = _tag( $tag_hash, 'string' );
84 $state->{_trigger} = 'GetRPCMethodsResponse';
85 };
86
87 =head2 GetParameterNamesResponse
88
89 =cut
90
91 push @$rules,
92 'ParameterInfoStruct' => sub {
93 my ($tag_name, $tag_hash, $context, $parent_data) = @_;
94 my $name = _tag($tag_hash, 'Name', '_content');
95 my $writable = _tag($tag_hash, 'Writable', '_content' );
96
97 confess "need state" unless ( $state ); # don't remove!
98
99 # XXX dragons ahead: convert name to tree rewriting it into perl
100 my $s = '$state->{ParameterInfo}->' . $tree->name2perl( $name ) . "->{writable} = $writable;";
101 eval "$s";
102 confess "can't eval $s : $@" if ($@);
103
104 #warn "## state = dump( $state ), "\n";
105
106 $state->{_trigger} = 'GetParameterNamesResponse';
107 };
108
109 =head2 Fault
110
111 =cut
112
113 push @$rules,
114 'Fault' => sub {
115 my ($tag_name, $tag_hash, $context, $parent_data) = @_;
116 $state->{Fault} = {
117 FaultCode => _tag( $tag_hash, 'FaultCode', '_content' ),
118 FaultString => _tag( $tag_hash, 'FaultString', '_content' ),
119 };
120 warn "FAULT: ", $state->{Fault}->{FaultCode}, " ", $state->{Fault}->{FaultString}, "\n";
121 $state->{_trigger} = 'Fault';
122 };
123
124 my $parser = XML::Rules->new(
125 # start_rules => [
126 # '^division_name,fax' => 'skip',
127 # ],
128 namespaces => {
129 'http://schemas.xmlsoap.org/soap/envelope/' => 'soapenv',
130 'http://schemas.xmlsoap.org/soap/encoding/' => 'soap',
131 'http://www.w3.org/2001/XMLSchema' => 'xsd',
132 'http://www.w3.org/2001/XMLSchema-instance' => 'xsi',
133 'urn:dslforum-org:cwmp-1-0' => '',
134 },
135 rules => $rules,
136 );
137
138 =head1 METHODS
139
140 =head2 parse
141
142 my $state = CWMP::Request->parse( "<soap>request</soap>" );
143
144 =cut
145
146 sub parse {
147 my $self = shift;
148
149 my $xml = shift || confess "no xml?";
150
151 $state = {};
152 $parser->parsestring( $xml );
153 if ( my $trigger = $state->{_trigger} ) {
154 __PACKAGE__->call_trigger( $trigger, $state );
155 }
156 # XXX don't propagate _trigger (useful?)
157 delete( $state->{_trigger} );
158 return $state;
159 }
160
161 =head2 _tag
162
163 Get value of tag. Tag name is case insensitive (don't ask why),
164 we ignore namespaces and can take optional C<sub_key>
165 (usually C<_content>).
166
167 _tag( $tag_hash, $name, $sub_key )
168
169 =cut
170
171 sub _tag {
172 my ( $tag_hash, $name, $sub_key ) = @_;
173 confess "need hash as first argument" unless ( ref $tag_hash eq 'HASH' );
174 $name = (grep { m/^(?:\w+:)*$name$/i } keys %$tag_hash )[0];
175 # $name =~ s/^\w+://;
176 if ( defined $tag_hash->{$name} ) {
177 if ( ! defined $sub_key ) {
178 return $tag_hash->{$name};
179 } elsif ( defined $tag_hash->{$name}->{$sub_key} ) {
180 return $tag_hash->{$name}->{$sub_key};
181 } else {
182 return if ( $name =~ m/^value$/i );
183 warn "can't find '$name/$sub_key' in ", dump( $tag_hash );
184 return;
185 }
186 } else {
187 warn "can't find '$name' in ", dump( $tag_hash );
188 return;
189 }
190 }
191
192 1;

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