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package POE::Filter::XML::RPC; |
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58140
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use POE::Filter::XML::RPC::Request; |
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use POE::Filter::XML::RPC::Response; |
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use POE::Filter::XML::RPC::Fault; |
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use POE::Filter::XML::Node; |
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use base('POE::Filter'); |
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use constant |
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{ |
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BUFFER => 0, |
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}; |
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our $VERSION = '0.04'; |
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sub new() |
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{ |
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my $class = shift; |
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my $self = []; |
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$self->[+BUFFER] = []; |
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return bless($self, $class); |
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} |
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sub get_one_start() |
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{ |
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my ($self, $raw) = @_; |
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if(@{$self->[+BUFFER]}) |
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{ |
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push(@{$self->[+BUFFER]}, @$raw); |
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} elsif(ref($raw) eq 'ARRAY') { |
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$self->[+BUFFER] = $raw; |
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} |
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else |
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{ |
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$self->[+BUFFER] = [$raw]; |
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} |
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} |
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sub get_one() |
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{ |
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my $self = shift(@_); |
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my $node = shift(@{$self->[+BUFFER]}); |
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if(defined($node)) |
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{ |
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if($node->nodeName() eq 'methodCall') |
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{ |
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if($node->exists('child::methodName')) |
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{ |
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if(!$node->exists('child::methodName/child::text()')) |
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{ |
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return |
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[ |
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POE::Filter::XML::RPC::Response->new |
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( |
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POE::Filter::XML::RPC::Fault->new |
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( |
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102, |
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'Malformed XML-RPC: No methodName data defined' |
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) |
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) |
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]; |
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} |
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} else { |
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return |
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[ |
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POE::Filter::XML::RPC::Response->new |
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( |
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POE::Filter::XML::RPC::Fault->new |
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103, |
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'Malformed XML-RPC: No methodName child tag present' |
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) |
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) |
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]; |
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} |
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# params are optional, but let's be consistent for the |
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# Request code's sake. |
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if(!$node->exists('child::params')) |
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{ |
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$node->appendChild('params'); |
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} else { |
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my $params =()= $node->findnodes('child::params/child::param'); |
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my $vals =()= $node->findnodes('child::params/child::param/child::value'); |
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if($vals < $params) |
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{ |
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return |
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[ |
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POE::Filter::XML::RPC::Response->new |
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( |
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POE::Filter::XML::RPC::Fault->new |
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( |
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110, |
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'Malformed XML-RPC: No value tag within param' |
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) |
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) |
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]; |
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} |
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} |
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return [bless($node, 'POE::Filter::XML::RPC::Request')]; |
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} elsif ($node->nodeName() eq 'methodResponse') { |
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if(!$node->exists('child::params') and !$node->exists('child::fault')) |
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{ |
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return |
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[ |
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POE::Filter::XML::RPC::Response->new |
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( |
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POE::Filter::XML::RPC::Fault->new |
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( |
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104, |
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'Malformed XML-RPC: Response does not contain ' . |
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'parameters or a fault object' |
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) |
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) |
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] |
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} elsif($node->exists('child::params')) { |
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my $params =()= $node->findnodes('child::params/child::param'); |
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if(!$params) |
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{ |
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return |
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[ |
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POE::Filter::XML::RPC::Response->new |
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( |
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POE::Filter::XML::RPC::Fault->new |
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( |
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105, |
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'Malformed XML-RPC: Return parameters does ' . |
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'not contain any param children' |
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) |
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) |
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]; |
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} |
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my $node_count =()= $node->findnodes('child::params/child::*'); |
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if($node_count > $params) |
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{ |
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return |
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[ |
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POE::Filter::XML::RPC::Response->new |
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( |
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POE::Filter::XML::RPC::Fault->new |
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( |
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108, |
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'Malformed XML-RPC: Params object ' . |
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'contains children other than param' |
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) |
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) |
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]; |
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} |
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my $value_count =()= $node->findnodes('child::params/child::param/child::value'); |
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if($value_count < $params) |
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{ |
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return |
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[ |
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POE::Filter::XML::RPC::Response->new |
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( |
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POE::Filter::XML::RPC::Fault->new |
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( |
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109, |
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'Malformed XML-RPC: Param child does '. |
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'not contain a value object' |
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) |
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) |
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]; |
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} |
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192
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} elsif($node->exists('child::fault')) { |
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194
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if(!$node->exists('child::fault/child::value')) |
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{ |
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return |
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[ |
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POE::Filter::XML::RPC::Response->new |
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( |
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POE::Filter::XML::RPC::Fault->new |
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106, |
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'Malformed XML-RPC: Fault value is not a ' . |
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'valid struct object' |
205
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) |
206
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) |
207
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]; |
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} |
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210
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if(!$node->exists('child::fault/child::value/child::struct')) |
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{ |
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return |
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[ |
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POE::Filter::XML::RPC::Response->new |
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( |
216
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POE::Filter::XML::RPC::Fault->new |
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( |
218
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106, |
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'Malformed XML-RPC: Fault value is not a ' . |
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'valid struct object' |
221
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) |
222
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) |
223
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]; |
224
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225
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} |
226
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227
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my $code = $node->findvalue('child::fault/child::value/child::struct/child::member[child::name/child::text() = "faultCode"]/child::value/child::*/child::text()'); |
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my $string = $node->findvalue('child::fault/child::value/child::struct/child::member[child::name/child::text() = "faultString"]/child::value/child::*/child::text()'); |
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230
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if(!defined($code) or !defined($string) or !length($code) or !length($string)) |
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{ |
232
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return |
233
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[ |
234
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POE::Filter::XML::RPC::Response->new |
235
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( |
236
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POE::Filter::XML::RPC::Fault->new |
237
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( |
238
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107, |
239
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'Malformed XML-RPC: Fault value does not ' . |
240
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'contain either a fault code or fault string' |
241
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) |
242
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) |
243
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]; |
244
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} |
245
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} |
246
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247
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return [bless($node, 'POE::Filter::XML::RPC::Response')]; |
248
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249
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} else { |
250
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251
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return |
252
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[ |
253
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POE::Filter::XML::RPC::Response->new |
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POE::Filter::XML::RPC::Fault->new |
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( |
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101, |
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'Malformed XML-RPC: Top level node is not valid' |
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) |
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) |
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]; |
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} |
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} else { |
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return []; |
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} |
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} |
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sub put() |
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{ |
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my ($self, $nodes) = @_; |
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my $ret = []; |
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foreach my $node (@$nodes) |
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{ |
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push(@$ret, bless($node, 'POE::Filter::XML::Node')); |
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} |
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return $ret; |
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} |
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=pod |
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=head1 NAME |
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POE::Filter::XML::RPC - A POE Filter for marshalling XML-RPC |
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=head1 SYNOPSIS |
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use POE::Filter::XML::RPC; |
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use POE::Filter::XML::RPC::Request; |
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use POE::Filter::XML::RPC::Response; |
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use POE::Filter::XML::RPC::Fault; |
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use POE::Filter::XML::RPC::Value; |
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my $filter = POE::Filter::XML::RPC->new(); |
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# Build/send a request |
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my $request = POE::Filter::XML::RPC::Request->new |
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( |
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'server_method', |
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POE::Filter::XML::RPC::Value->new({'NamedArgument' => 42}) |
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); |
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307
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$filter->put($request); |
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309
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# Build/send a response |
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311
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my $reponse = POE::Filter::XML::RPC::Response->new |
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( |
313
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POE::Filter::XML::RPC::Value->new([qw/somevalue1 somevalue2/]) |
314
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); |
315
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316
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$filter->put($reponse); |
317
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318
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|
=head1 DESCRIPTION |
319
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320
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POE::Filter::XML::RPC builds upon the work of POE::Filter::XML to parse XML-RPC |
321
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datagrams and deliver useful objects for the end developer. |
322
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323
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This filter is expected to be used in a chain of filters where it will receive |
324
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POE::Filter::XML::Nodes on input and output. |
325
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326
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|
=head1 PUBLIC METHODS |
327
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328
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|
There are no public methods outside of the implemented POE::Filter API |
329
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330
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|
=head1 NOTES |
331
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332
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|
|
Response, Request, Fault, and Value are based on POE::Filter::XML::Node. See |
333
|
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|
|
their individual PODs for more information. |
334
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335
|
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|
|
This filter only implements part of the XMLRPC spec[1], the HTTP portion is not |
336
|
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|
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|
|
accounted for within this filter and in fact, only concerns itself with |
337
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|
|
POE::Filter::XML::Nodes received or sent. |
338
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339
|
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|
|
[1]: http://www.xmlrpc.com/spec |
340
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341
|
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|
|
=head1 AUTHOR |
342
|
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343
|
|
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|
|
|
|
Copyright 2009 Nicholas Perez. |
344
|
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|
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|
|
Licensed and distributed under the GPL. |
345
|
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|
|
346
|
|
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|
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|
|
=cut |
347
|
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348
|
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|
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|
|
1; |