LWP::UserAgent to post XML to secure server... certificate issue

Question

I'm using LWP::UserAgent to do a POST of XML data to a remote server. The remote URL is https, and they sent me a .crt file to install on my server.

When I try to connect to their server, I get the following message:

An Error Occurred

500 Can't connect to previewtest.clverify.com:443 (certificate verify failed) 500 Can't connect to previewtest.clverify.com:443 (certificate verify failed) Content-Type: text/plain Client-Date: Wed, 25 Jan 2012 05:11:24 GMT Client-Warning: Internal response Can't connect to previewtest.clverify.com:443 (certificate verify failed) LWP::Protocol::https::Socket: SSL connect attempt failed with unknown errorerror:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed at /usr/lib/perl5/site_perl/5.8.8/LWP/Protocol/http.pm line 51.

How do I appropriately reference the SSL Certificate on my server and send it to theirs?

Here is the code:

sub ConsumerInfo {
my $cid = shift;

my $response = undef;
my $sendXML = &Create_ConsumerInfo_Request($cid);
if ($sendXML) {
    &DoXMLUpload($sendXML);

    my $browser = LWP::UserAgent->new(agent => 'perl post');
    $browser->credentials('sumURL:443','sumRealm','sumUserID'=>'sumPassword');
    $response = $browser->request(POST 'sumFullURL',
        Content_Type => 'text/xml',
        Content => $sendXML);
    print "Content-type:text/html\n\n";
    print $response->error_as_HTML unless $response->is_success;
    print $response->as_string;
} else {
    &ErrorMsg("No XML Code Was Found.");
    exit;   
}
# ===============================================================
# Need to insert parser in here to convert this into an array.
# ===============================================================
return $response;
}

Now... let's say that the certs that were sent to me are located at /usr/bin/some_dir/DigiCertCA.crt.

How do I set this to check my certs when the server is called?

Answer 1

First, I'd try changing the my $browser line to:

my $browser = LWP::UserAgent->new(
  agent => 'perl post',
  ssl_opts => {
    verify_hostname => 1,
    SSL_ca_path => '/usr/bin/some_dir',
  },
);