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=head1 NAME |
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XML::RPC -- Pure Perl implementation for an XML-RPC client and server. |
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=head1 SYNOPSIS |
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make a call to an XML-RPC server: |
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use XML::RPC; |
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my $xmlrpc = XML::RPC->new('http://betty.userland.com/RPC2'); |
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my $result = $xmlrpc->call( 'examples.getStateStruct', { state1 => 12, state2 => 28 } ); |
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create an XML-RPC service: |
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use XML::RPC; |
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use CGI; |
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my $q = new CGI; |
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my $xmlrpc = XML::RPC->new(); |
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my $xml = $q->param('POSTDATA'); |
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print $q->header( -type => 'text/xml', -charset => 'UTF-8' ); |
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print $xmlrpc->receive( $xml, \&handler ); |
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sub handler { |
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my ( $methodname, @params ) = @_; |
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return { you_called => $methodname, with_params => \@params }; |
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} |
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=head1 WARNING |
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Very little maintainance goes into this module. While it continues to work, is has certain quirks that may or may not be fixable without breaking backward compatibility. |
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I strongly recommend that, before deciding what to use in a new project, you look into Randy Ray's L module. This seems to be a much more modern approach. |
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=head1 DESCRIPTION |
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XML::RPC module provides simple Pure Perl methods for XML-RPC communication. |
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It's goals are simplicity and flexibility. XML::RPC uses XML::TreePP |
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for parsing. |
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This version of XML::RPC merges the changes from XML::RPC::CustomUA. |
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=head1 CONSTRUCTOR AND OPTIONS |
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=head2 $xmlrpc = XML::RPC->new(); |
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50
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This constructor method returns a new XML::RPC object. Usable for XML-RPC servers. |
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=head2 $xmlrpc = XML::RPC->new( 'http://betty.userland.com/RPC2', %options ); |
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Its first argument is the full URL for your server. The second argument |
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is for options passing to XML::TreePP, for example: output_encoding => 'ISO-8859-1' |
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(default is UTF-8). |
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You can also define the UserAgent string, for example: |
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my $rpcfoo = XML::RPC->new($apiurl, ('User-Agent' => 'Baz/3000 (Mozilla/1.0; FooBar phone app)')); |
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62
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=head1 METHODS |
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=head2 $xmlrpc->credentials( 'username', 'password ); |
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66
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Set Credentials for HTTP Basic Authentication. This is only |
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secure over HTTPS. |
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69
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Please, please, please do not use this over unencrypted connections! |
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=head2 $xmlrpc->call( 'method_name', @arguments ); |
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This method calls the provides XML-RPC server's method_name with |
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@arguments. It will return the server method's response. |
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=head2 $xmlrpc->receive( $xml, \&handler ); |
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This parses an incoming XML-RPC methodCall and call the \&handler subref |
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with parameters: $methodName and @parameters. |
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81
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=head2 $xmlrpc->xml_in(); |
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Returns the last XML that went in the client. |
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85
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=head2 $xmlrpc->xml_out(); |
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Returns the last XML that went out the client. |
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89
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=head2 $xmlrpc->indent(indentsize); |
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Sets the xmlout indentation |
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93
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=head1 CUSTOM TYPES |
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=head2 $xmlrpc->call( 'method_name', { data => sub { { 'base64' => encode_base64($data) } } } ); |
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When passing a CODEREF to a value XML::RPC will simply use the returned hashref as a type => value pair. |
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99
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=head1 TYPECASTING |
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101
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Sometimes a value type might not be clear from the value alone, typecasting provides a way to "force" a value to a certain type |
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103
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=head2 as_string |
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105
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Forces a value to be cast as string. |
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$xmlrpc->call( 'gimmeallyourmoney', { cardnumber => as_string( 12345 ) } ); |
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=head2 as_int |
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Forces a value to be cast as int |
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113
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=head2 as_i4 |
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Forces a value to be cast as i4 |
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117
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=head2 as_double |
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Forces a value to be cast as double |
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121
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=head2 as_boolean |
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Forces a value to be cast as boolean |
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125
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=head2 as_base64 |
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127
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Forces a value to be cast as base64 |
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129
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=head2 as_dateTime_iso8601 |
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Forces a value to be cast as ISO8601 Datetime |
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133
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134
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=head1 ERROR HANDLING |
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136
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To provide an error response you can simply die() in the \&handler |
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function. Also you can set the $XML::RPC::faultCode variable to a (int) value |
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just before dieing. |
139
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140
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=head1 PROXY SUPPORT |
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142
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Default XML::RPC will try to use LWP::Useragent for requests, |
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you can set the environment variable: CGI_HTTP_PROXY to |
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set a proxy. |
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146
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=head1 LIMITATIONS |
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148
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XML::RPC will not create "bool", "dateTime.iso8601" or "base64" types |
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automatically. They will be parsed as "int" or "string". You can use the |
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CODE ref to create these types. |
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152
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=head1 AUTHOR |
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154
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Original author: Niek Albers, http://www.daansystems.com/ |
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Current author: Rene Schickbauer, https://cavac.at |
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157
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=head1 COPYRIGHT AND LICENSE |
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159
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Copyright (c) 2007-2008 Niek Albers. All rights reserved. This program |
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161
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Copyright (c) 2012-2022 Rene Schickbauer |
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163
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This program is free software; you can redistribute it and/or modify it under the same |
164
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terms as Perl itself. |
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=cut |
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167
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package XML::RPC; |
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169
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2
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2
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109384
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use strict; |
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12
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2
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49
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170
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2
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2
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1048
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use XML::TreePP; |
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13625
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2
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63
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171
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2
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804
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use MIME::Base64; |
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172
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804
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use Time::Local; |
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use vars qw($VERSION $faultCode); |
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67
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174
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2
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no strict 'refs'; |
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5
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2
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3085
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175
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176
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$VERSION = 2.0; |
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$faultCode = 0; |
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179
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sub new { |
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1
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1
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1
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68
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my $package = shift; |
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1
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3
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my $self = {}; |
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1
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2
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bless $self, $package; |
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1
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4
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$self->{url} = shift; |
184
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1
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5
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$self->{tpp} = XML::TreePP->new(@_); |
185
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1
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8
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return $self; |
186
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} |
187
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188
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sub indent { |
189
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0
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0
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0
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1
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my $self = shift || return; |
190
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0
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$self->{tpp}->set( indent => shift ); |
191
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} |
192
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193
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sub credentials { |
194
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0
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0
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1
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my ($self, $username, $password) = @_; |
195
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196
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0
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my $authtoken = 'Basic ' . encode_base64($username . ':' . $password, ''); |
197
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198
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0
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$self->{authtoken} = $authtoken; |
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200
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0
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return; |
201
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} |
202
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203
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sub call { |
204
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0
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0
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1
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my $self = shift; |
205
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0
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my ( $methodname, @params ) = @_; |
206
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207
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0
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0
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die 'no url' if ( !$self->{url} ); |
208
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209
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0
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$faultCode = 0; |
210
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0
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my $xml_out = $self->create_call_xml( $methodname, @params ); |
211
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212
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0
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$self->{xml_out} = $xml_out; |
213
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214
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my %header = ( |
215
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'Content-Type' => 'text/xml', |
216
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0
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0
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'User-Agent' => defined($self->{tpp}->{'User-Agent'}) ? $self->{tpp}->{'User-Agent'} : 'XML-RPC/' . $VERSION, |
217
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'Content-Length' => length($xml_out) |
218
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); |
219
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220
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0
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0
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if(defined($self->{authtoken})) { |
221
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$header{'Authorization'} = $self->{authtoken} |
222
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0
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} |
223
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224
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|
my ( $result, $xml_in ) = $self->{tpp}->parsehttp( |
225
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|
POST => $self->{url}, |
226
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0
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$xml_out, |
227
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\%header, |
228
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); |
229
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230
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0
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$self->{xml_in} = $xml_in; |
231
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232
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0
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my @data = $self->unparse_response($result); |
233
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0
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0
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|
return @data == 1 ? $data[0] : @data; |
234
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} |
235
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236
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sub receive { |
237
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0
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1
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|
my $self = shift; |
238
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0
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my $result = eval { |
239
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0
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0
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my $xml_in = shift || die 'no xml'; |
240
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0
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|
$self->{xml_in} = $xml_in; |
241
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0
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0
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my $handler = shift || die 'no handler'; |
242
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0
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my $hash = $self->{tpp}->parse($xml_in); |
243
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0
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my ( $methodname, @params ) = $self->unparse_call($hash); |
244
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$self->create_response_xml( $handler->( $methodname, @params ) ); |
245
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}; |
246
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247
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0
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0
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$result = $self->create_fault_xml($@) if ($@); |
248
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0
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$self->{xml_out} = $result; |
249
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return $result; |
250
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251
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} |
252
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253
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sub create_fault_xml { |
254
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0
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0
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0
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|
my $self = shift; |
255
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0
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my $error = shift; |
256
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0
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chomp($error); |
257
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return $self->{tpp} |
258
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0
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|
->write( { methodResponse => { fault => $self->parse( { faultString => $error, faultCode => int($faultCode) } ) } } ); |
259
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} |
260
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261
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sub create_call_xml { |
262
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0
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0
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my $self = shift; |
263
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0
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my ( $methodname, @params ) = @_; |
264
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265
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return $self->{tpp}->write( |
266
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{ |
267
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methodCall => { |
268
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methodName => $methodname, |
269
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0
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|
params => { param => [ map { $self->parse($_) } @params ] } |
|
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270
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} |
271
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} |
272
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); |
273
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} |
274
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275
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sub create_response_xml { |
276
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0
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0
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0
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|
my $self = shift; |
277
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0
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|
my @params = @_; |
278
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279
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0
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|
return $self->{tpp}->write( { methodResponse => { params => { param => [ map { $self->parse($_) } @params ] } } } ); |
|
0
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280
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} |
281
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282
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|
sub parse { |
283
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0
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0
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0
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|
my $self = shift; |
284
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0
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|
my $p = shift; |
285
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0
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|
my $result; |
286
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|
287
|
0
|
0
|
|
|
|
|
if ( ref($p) eq 'HASH' ) { |
|
|
0
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|
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0
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|
288
|
0
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|
$result = $self->parse_struct($p); |
289
|
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|
|
|
|
} |
290
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|
|
elsif ( ref($p) eq 'ARRAY' ) { |
291
|
0
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|
|
$result = $self->parse_array($p); |
292
|
|
|
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|
|
} |
293
|
|
|
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|
|
elsif ( ref($p) eq 'CODE' ) { |
294
|
0
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|
|
|
$result = $p->(); |
295
|
|
|
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|
|
|
} |
296
|
|
|
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|
|
|
else { |
297
|
0
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|
|
$result = $self->parse_scalar($p); |
298
|
|
|
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|
|
|
} |
299
|
|
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|
300
|
0
|
|
|
|
|
|
return { value => $result }; |
301
|
|
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|
|
|
} |
302
|
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|
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|
303
|
|
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|
|
|
|
sub parse_scalar { |
304
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
305
|
0
|
|
|
|
|
|
my $scalar = shift; |
306
|
0
|
|
|
|
|
|
local $^W = undef; |
307
|
|
|
|
|
|
|
|
308
|
0
|
0
|
0
|
|
|
|
if ( ( $scalar =~ m/^[\-+]?(0|[1-9]\d*)$/ ) |
|
|
0
|
|
|
|
|
|
309
|
|
|
|
|
|
|
&& ( abs($scalar) <= ( 0xffffffff >> 1 ) ) ) |
310
|
|
|
|
|
|
|
{ |
311
|
0
|
|
|
|
|
|
return { i4 => $scalar }; |
312
|
|
|
|
|
|
|
} |
313
|
|
|
|
|
|
|
elsif ( $scalar =~ m/^[\-+]?\d+\.\d+$/ ) { |
314
|
0
|
|
|
|
|
|
return { double => $scalar }; |
315
|
|
|
|
|
|
|
} |
316
|
|
|
|
|
|
|
else { |
317
|
0
|
|
|
|
|
|
return { string => \$scalar }; |
318
|
|
|
|
|
|
|
} |
319
|
|
|
|
|
|
|
} |
320
|
|
|
|
|
|
|
|
321
|
|
|
|
|
|
|
sub parse_struct { |
322
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
323
|
0
|
|
|
|
|
|
my $hash = shift; |
324
|
|
|
|
|
|
|
|
325
|
0
|
|
|
|
|
|
return { struct => { member => [ map { { name => $_, %{ $self->parse( $hash->{$_} ) } } } keys(%$hash) ] } }; |
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
326
|
|
|
|
|
|
|
} |
327
|
|
|
|
|
|
|
|
328
|
|
|
|
|
|
|
sub parse_array { |
329
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
330
|
0
|
|
|
|
|
|
my $array = shift; |
331
|
|
|
|
|
|
|
|
332
|
0
|
|
|
|
|
|
return { array => { data => { value => [ map { $self->parse($_)->{value} } $self->list($array) ] } } }; |
|
0
|
|
|
|
|
|
|
333
|
|
|
|
|
|
|
} |
334
|
|
|
|
|
|
|
|
335
|
|
|
|
|
|
|
sub unparse_response { |
336
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
337
|
0
|
|
|
|
|
|
my $hash = shift; |
338
|
|
|
|
|
|
|
|
339
|
0
|
|
0
|
|
|
|
my $response = $hash->{methodResponse} || die 'no data'; |
340
|
|
|
|
|
|
|
|
341
|
0
|
0
|
|
|
|
|
if ( $response->{fault} ) { |
342
|
0
|
|
|
|
|
|
return $self->unparse_value( $response->{fault}->{value} ); |
343
|
|
|
|
|
|
|
} |
344
|
|
|
|
|
|
|
else { |
345
|
0
|
|
|
|
|
|
return map { $self->unparse_value( $_->{value} ) } $self->list( $response->{params}->{param} ); |
|
0
|
|
|
|
|
|
|
346
|
|
|
|
|
|
|
} |
347
|
|
|
|
|
|
|
} |
348
|
|
|
|
|
|
|
|
349
|
|
|
|
|
|
|
sub unparse_call { |
350
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
351
|
0
|
|
|
|
|
|
my $hash = shift; |
352
|
|
|
|
|
|
|
|
353
|
0
|
|
0
|
|
|
|
my $response = $hash->{methodCall} || die 'no data'; |
354
|
|
|
|
|
|
|
|
355
|
0
|
|
|
|
|
|
my $methodname = $response->{methodName}; |
356
|
|
|
|
|
|
|
my @args = |
357
|
0
|
|
|
|
|
|
map { $self->unparse_value( $_->{value} ) } $self->list( $response->{params}->{param} ); |
|
0
|
|
|
|
|
|
|
358
|
0
|
|
|
|
|
|
return ( $methodname, @args ); |
359
|
|
|
|
|
|
|
} |
360
|
|
|
|
|
|
|
|
361
|
|
|
|
|
|
|
sub unparse_value { |
362
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
363
|
0
|
|
|
|
|
|
my $value = shift; |
364
|
0
|
|
|
|
|
|
my $result; |
365
|
|
|
|
|
|
|
|
366
|
0
|
0
|
|
|
|
|
return $value if ( ref($value) ne 'HASH' ); # for unspecified params |
367
|
0
|
0
|
|
|
|
|
if ( $value->{struct} ) { |
|
|
0
|
|
|
|
|
|
368
|
0
|
|
|
|
|
|
$result = $self->unparse_struct( $value->{struct} ); |
369
|
0
|
0
|
|
|
|
|
return !%$result |
370
|
|
|
|
|
|
|
? undef |
371
|
|
|
|
|
|
|
: $result; # fix for empty hashrefs from XML::TreePP |
372
|
|
|
|
|
|
|
} |
373
|
|
|
|
|
|
|
elsif ( $value->{array} ) { |
374
|
0
|
|
|
|
|
|
return $self->unparse_array( $value->{array} ); |
375
|
|
|
|
|
|
|
} |
376
|
|
|
|
|
|
|
else { |
377
|
0
|
|
|
|
|
|
return $self->unparse_scalar($value); |
378
|
|
|
|
|
|
|
} |
379
|
|
|
|
|
|
|
} |
380
|
|
|
|
|
|
|
|
381
|
|
|
|
|
|
|
sub unparse_scalar { |
382
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
383
|
0
|
|
|
|
|
|
my $scalar = shift; |
384
|
0
|
|
|
|
|
|
my ($result) = values(%$scalar); |
385
|
0
|
0
|
0
|
|
|
|
return ( ref($result) eq 'HASH' && !%$result ) |
386
|
|
|
|
|
|
|
? undef |
387
|
|
|
|
|
|
|
: $result; # fix for empty hashrefs from XML::TreePP |
388
|
|
|
|
|
|
|
} |
389
|
|
|
|
|
|
|
|
390
|
|
|
|
|
|
|
sub unparse_struct { |
391
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
392
|
0
|
|
|
|
|
|
my $struct = shift; |
393
|
|
|
|
|
|
|
|
394
|
0
|
|
|
|
|
|
return { map { $_->{name} => $self->unparse_value( $_->{value} ) } $self->list( $struct->{member} ) }; |
|
0
|
|
|
|
|
|
|
395
|
|
|
|
|
|
|
} |
396
|
|
|
|
|
|
|
|
397
|
|
|
|
|
|
|
sub unparse_array { |
398
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
399
|
0
|
|
|
|
|
|
my $array = shift; |
400
|
0
|
|
|
|
|
|
my $data = $array->{data}; |
401
|
|
|
|
|
|
|
|
402
|
0
|
|
|
|
|
|
return [ map { $self->unparse_value($_) } $self->list( $data->{value} ) ]; |
|
0
|
|
|
|
|
|
|
403
|
|
|
|
|
|
|
} |
404
|
|
|
|
|
|
|
|
405
|
|
|
|
|
|
|
sub list { |
406
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
407
|
0
|
|
|
|
|
|
my $param = shift; |
408
|
0
|
0
|
|
|
|
|
return () if ( !$param ); |
409
|
0
|
0
|
|
|
|
|
return @$param if ( ref($param) eq 'ARRAY' ); |
410
|
0
|
|
|
|
|
|
return ($param); |
411
|
|
|
|
|
|
|
} |
412
|
|
|
|
|
|
|
|
413
|
0
|
|
|
0
|
1
|
|
sub xml_in { shift->{xml_in} } |
414
|
|
|
|
|
|
|
|
415
|
0
|
|
|
0
|
1
|
|
sub xml_out { shift->{xml_out} } |
416
|
|
|
|
|
|
|
|
417
|
|
|
|
|
|
|
# private helper function to create specialised closure |
418
|
|
|
|
|
|
|
sub _cast { |
419
|
0
|
|
|
0
|
|
|
my ($type, $val) = @_; |
420
|
0
|
|
|
0
|
|
|
return sub { return { "$type" => $val }; }; |
|
0
|
|
|
|
|
|
|
421
|
|
|
|
|
|
|
} |
422
|
|
|
|
|
|
|
|
423
|
|
|
|
|
|
|
sub as_string { |
424
|
0
|
|
|
0
|
1
|
|
return _cast( 'string', shift ); |
425
|
|
|
|
|
|
|
} |
426
|
|
|
|
|
|
|
|
427
|
|
|
|
|
|
|
sub as_int { |
428
|
0
|
|
|
0
|
1
|
|
return _cast( 'int', int shift ); |
429
|
|
|
|
|
|
|
} |
430
|
|
|
|
|
|
|
|
431
|
|
|
|
|
|
|
sub as_i4 { |
432
|
0
|
|
|
0
|
1
|
|
return _cast( 'i4', int shift ); |
433
|
|
|
|
|
|
|
} |
434
|
|
|
|
|
|
|
|
435
|
|
|
|
|
|
|
sub as_double { |
436
|
0
|
|
|
0
|
1
|
|
return _cast( 'double', sprintf('%g', shift) ); |
437
|
|
|
|
|
|
|
} |
438
|
|
|
|
|
|
|
|
439
|
|
|
|
|
|
|
sub as_boolean { |
440
|
0
|
0
|
|
0
|
1
|
|
return _cast( 'boolean', (shift) ? '1' : '0' ); |
441
|
|
|
|
|
|
|
} |
442
|
|
|
|
|
|
|
|
443
|
|
|
|
|
|
|
sub as_base64 { |
444
|
0
|
|
|
0
|
1
|
|
chomp( my $base64 = encode_base64( shift ) ); |
445
|
0
|
|
|
|
|
|
return _cast( 'base64', $base64 ); |
446
|
|
|
|
|
|
|
} |
447
|
|
|
|
|
|
|
|
448
|
|
|
|
|
|
|
# converts epoch (or current time if undef) to dateTime.iso8601 (UTC) |
449
|
|
|
|
|
|
|
sub as_dateTime_iso8601 { |
450
|
0
|
|
|
0
|
1
|
|
my $epoch = shift; |
451
|
0
|
0
|
|
|
|
|
$epoch = time() unless defined $epoch; # could be: "shift // time" with modern perl versions |
452
|
0
|
|
|
|
|
|
my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) = gmtime( $epoch ); |
453
|
|
|
|
|
|
|
|
454
|
0
|
|
|
|
|
|
return _cast( 'dateTime.iso8601', |
455
|
|
|
|
|
|
|
sprintf('%4d%02d%02dT%02d:%02d:%02dZ', |
456
|
|
|
|
|
|
|
$year + 1900, $mon + 1, $mday, $hour, $min, $sec) |
457
|
|
|
|
|
|
|
); |
458
|
|
|
|
|
|
|
} |
459
|
|
|
|
|
|
|
|
460
|
|
|
|
|
|
|
1; |