NAME
   PayflowPro - Library for accessing PayPal's Payflow Pro HTTP interface

SYNOPSIS
     use PayflowPro qw(pfpro);
     my $data = {
       USER=>'MyUserId',
       VENDOR=>'MyVendorId',
       PARTNER=>'MyPartnerId',
       PWD=>'MyPassword',

       AMT=> '42.24',
       TAXAMT=>'0.00',      # no tax charged, but specifying it lowers cost
       INVNUM=>$$,
       DESC=>"Test invoice $$",
       COMMENT1=>"Comment 1 $$",
       COMMENT2=>"Comment 2 $$",
       CUSTCODE=>$$ . 'a' . $$,

       TRXTYPE=>'S',                       # sale
       TENDER=>'C',                        # credit card

       # Commercial Card additional info
       PONUM=>$$.'-'.$$,
       SHIPTOZIP=>'20850', # for AmEx Level 2
       DESC4=>'FRT0.00',   # for AmEx Level 2

       # verisign tracking info
       STREET => '123 AnyStreet',
       CITY => 'Anytown',
       COUNTRY => 'us',
       FIRSTNAME => 'Firsty',
       LASTNAME => 'Lasty',
       STATE => 'md',
       ZIP => '20850',

       ACCT => '5555555555554444',
       EXPDATE => '1009',
       CVV2 => '123',
     };

     my $res = pfpro($data);

     if ($res->{RESULT} == 0) {
       print "Woohooo!  We charged the card!\n";
     }

DESCRIPTION
   Interface to HTTP gateway for PayPal's Payflow Pro service. Implements
   the pfpro() function to simplify replacing the old PFProAPI perl module.

   Methods implemented are:

 pftestmode($testmode)
   Set test mode on or off. Test mode means it uses the testing server
   rather than the live one. Default mode is live ($testmode == 0).

   Returns true.

 pfdebug($mode)
   Set debug mode on or off. Turns on some warn statements to track
   progress of the request. Default mode is off ($mode == 0).

   Returns current setting.

 pfpro($data)
   Process request as per hash ref $data. See PFPro API docs on name/value
   pairs to pass in. All we do here is convert them into an HTTP request,
   then convert the response back into a hash and return the reference to
   it. This emulates the pfpro() function in the original API.

   Additionally, we honor a "TIMEOUT" value which specifies the number of
   seconds to wait for a response from the server. The default is 30
   seconds. Normally for production you should not need to alter this
   value. The test servers are slower so may need larger timeout. The
   minimum value that PayPal will accept is 5 seconds.

   It uses the time and the "INVNUM" (Invoice Number) field of input to
   generate the unique request ID, so don't try to process the same INVNUM
   more than once per second. "INVNUM" is a required datum to be passed
   into this function. Bad things happen if you don't.

   Upon communications failure, it fakes up a response message with
   "RESULT" = -1. Internally, the library tries several times to process
   the transaction if there are network problems before returning this
   failure mode.

   To validate the SSL certificate, you need a ca-bundle file with a list
   of valid certificate signers. Then set the environment variable
   HTTPS_CA_FILE to point to that file. This assumes you are using the
   "Crypt::SSLeay" SSL driver for LWP (should be the default). In your
   code, add some lines like this:

    # CA cert peer verification
    $ENV{HTTPS_CA_FILE} = '/path/to/ca-bundle.crt';

   It is likely to be in /etc/ssl or /usr/local/etc/ssl or /usr/local/certs
   depending on your OS version. The script mkcabundle included with this
   module can be used to create the bundle file based on the current
   Mozilla certificate data if you don't already have such a file. One is
   also included in the source for this module, but it may be out of date
   so it is recommended that you run the mkcabundle script to ensure you
   have the latest information.

   If you do not set HTTPS_CA_FILE it will still work, but you don't get
   the certificate validation to ensure you're speaking to the authentic
   site. You will also get in the HTTPS response headers

    Client-SSL-Warning: Peer certificate not verified

   but you'll only see that if you turn on debugging.

AUTHOR
   Vivek Khera <"[email protected]">

LICENSE
   This module is Copyright 2007-2009 Khera Communications, Inc. It is
   licensed under the same terms as Perl itself.