reubenkoshy has asked for the wisdom of the Perl Monks concerning the following question:

Hi Monks,

I am trying to create Perl classes from a WSDL file of Servicenow Target table using perl wsdl2perl.pl -b /usr/share/XXXX/local/WebServiceClient/WebServiceName/ -p WebServiceName WsdlUrl, however after deploying the command, I am getting an error: "Connect failed: connect: Connection timed out; Connection timed out at /opt/xxxxxx/perl5/lib/perl5/SOAP/WSDL/XXXX/Base.pm line 73"

Based on the Base.pm script, I see that the source server where I am deploying this command is unable to get the 200 OK response Please let me know the probable causes for such an issue (or) if there are any alternatives in trying to create the Perl classes from WSDL XML directly, as I have downloaded the WSDL XML schema already and have checked that the WSDL file is accessible

package SOAP::WSDL::Expat::Base; use strict; use warnings; use URI; use XML::Parser::Expat; sub new { my ($class, $arg_ref) = @_; my $self = { data => undef, }; bless $self, $class; $self->set_user_agent($arg_ref->{ user_agent }) if $arg_ref->{ user_agent }; $self->{ parsed } = $arg_ref->{ parsed } if $arg_ref->{ parsed }; return $self; } sub clone { my $self = shift; my $class = ref $self; my $clone = $class->new($self); return $clone; } sub set_uri { $_[0]->{ uri } = $_[1]; } sub get_uri { return $_[0]->{ uri }; } sub set_user_agent { $_[0]->{ user_agent } = $_[1]; } sub get_user_agent { return $_[0]->{ user_agent }; } return $self->parse( $response->content() ); } sub set_uri { $_[0]->{ uri } = $_[1]; } sub get_uri { return $_[0]->{ uri }; } sub set_user_agent { $_[0]->{ user_agent } = $_[1]; } sub get_user_agent { return $_[0]->{ user_agent }; } # Mark a URI as "already parsed" sub set_parsed { my ($self, $uri) = @_; $self->{ parsed }->{ $uri } = 1; return; } # returns true if a specific URI has already been parsed sub is_parsed { my ($self, $uri) = @_; return exists $self->{ parsed }->{ $uri };# parse a URI. This is t +he preferred parsing method for WSDL files, as it's }#the only one allowing automatic import resolution sub parse_uri { my $self = shift; my $uri = shift; if ($self->is_parsed($uri)){ warn "$uri already imported; ignoring it.\n"; return; } $self->set_parsed($uri); $self->set_uri( $uri ); if (not $self->{ user_agent }) { require LWP::UserAgent; $self->{ user_agent } = LWP::UserAgent->new(); } my $response = $self->{ user_agent }->get($uri); die $response->message() if $response->code() ne '200'; return $self->parse( $response->content() ); } sub parse { eval { $_[0]->_initialize( XML::Parser::Expat->new( Namespaces => 1 ) + )->parse( $_[1] ); $_[0]->{ parser }->release(); }; $_[0]->{ parser }->xpcroak( $@ ) if $@;

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Re: Unable to create Perl classes from WSDL URL using wsdl2perl
by haukex (Archbishop) on Nov 12, 2019 at 13:25 UTC
    Connect failed: connect: Connection timed out; Connection timed out at /opt/xxxxxx/perl5/lib/perl5/SOAP/WSDL/XXXX/Base.pm line 73

    I don't know about SOAP::WSDL, but to me that pretty clearly sounds like a network issue first, which I would start debugging as such. Try connecting to the target host without Perl, and if that works, use Wireshark to compare the two connection attempts to see what's going wrong. And since from the code you showed it appears that the error is happening when parsing XML, perhaps the parser is trying to follow a directive to some URL that it can't reach, so you should check on that as well.

      And if you don't have privileged access enough to run Wireshark (e.g. this were on a shared webhost you don't have root on) you can probably still use strace to watch for connect(2) system calls or other networkage being attempted. Even if you do have root it can be elucidating determining if delays are occurring locally or between you and the remote side after leaving your box.

      Useful options include: -e trace=network for selecting network-y calls; and -tt and -T for detailed timing on calls.

      The cake is a lie.
      The cake is a lie.
      The cake is a lie.

        Running Wireshark would be difficult because we do not have privileged access -- however on the other hand, we had found that the Network Ops Team had not opened the port-443 which is a default port through which this machine connects to the Internet. We are trying to connect to the WSDL file of Servicenow - so after the port was opened today we ran the command to create perl bindings and got the error: no host option found at /opt/XXXX/perl5/lib/SOAP/WSDL/Expat/Base.pm at Line 73

        The code is already mentioned in the script - This code in Expat is being used by the wsdl2perl script to perform WSDL parsing.It'd be great if you could let us know the probable causes for such an error message

      Running Wireshark would be difficult because we do not have privileged access -- however on the other hand, we had found that the Network Ops Team had not opened the port-443 which is a default port through which this machine connects to the Internet. We are trying to connect to the WSDL file of Servicenow - so after the port was opened today we ran the command to create perl bindings and got the error: no host option found at /opt/XXXX/perl5/lib/SOAP/WSDL/Expat/Base.pm at Line 73

      The code is already mentioned in the script - This code in Expat is being used by the wsdl2perl script to perform WSDL parsing.It'd be great if you could let us know the probable causes for such an error message