# Blosxom Plugin: paypalform
# Author: Bob Schumaker <cobblers@pobox.com>
# Version: 20030527
# http://www.cobblers.net/blog/
# License: Public Domain

package paypalform;

# --- Plug-in package variables -----

# --- Output variables -----

$form = "";

# --- Configurable variables -----

# Show the form everywhere?
$showform = 0;

# If we don't always show it, what turns it on?
$paypalconfig = "config.paypal";

# How much to ask for
$paypalamount = 5;

# Who gets the money?
$paypalaccount = "cobblers\@pobox.com";

# Which should we call this?
$paypalitemname = "Donation";

# Which donation is this?
$paypalitemnumber = "0001";

# --------------------------------

sub start {
  return 1;
}

sub head {
  my($pkg, $path, $head_ref) = @_;
  unless($showform) {
    for (;;) {
      do {
        -r "$blosxom::datadir/$path/$paypalconfig" and require "$blosxom::datadir/$path/$paypalconfig" and last;
      } while ($path =~ s/(\/*[^\/]*)$// and $1);
      last;
    }
  }
  if($showform) {
    while (<DATA>) {
	  last if /^(__END__)?$/;
	  $form .= $_;
    }
    my $email = $paypalaccount;
    my $len = length($email);
    my $l = $len/4;
    my $a = substr($email,0,$l);
    $form =~ s/%a%/$a/g;
    $email = substr($email,$l);
    $a = substr($email,0,$l);
    $form =~ s/%b%/$a/g;
    $email = substr($email,$l);
    $a = substr($email,0,$l);
    $form =~ s/%c%/$a/g;
    $email = substr($email,$l);
    $form =~ s/%d%/$email/g;
    $form =~ s/%amount%/$paypalamount/g;
    $form =~ s/%itemname%/$paypalitemname/g;
    $form =~ s/%itemnumber%/$paypalitemnumber/g;
    my $url = "$blosxom::url/$path";
    $form =~ s/%url%/$url/g;
  }
  1;
}

1;

__DATA__
<div align="middle" class="paypal">
<form name="paypal" onsubmit="add_email(); submit();" action="https://www.paypal.com/cgi-bin/webscr" method="post">
<p>
<script language="JavaScript">
<!--
function add_email() {
	var a = "%a%";
	var b = "%b%";
	var c = "%c%";
	var d = "%d%";
	emailString = a + b + c + d;
	document.paypal.business.value = emailString;
}
//-->
</script>
<input type="hidden" name="cmd" value="_xclick">
<input type="hidden" name="business" value="">
<input type="hidden" name="item_name" value="%itemname%">
<input type="hidden" name="item_number" value="%itemnumber%">
<input type="hidden" name="no_shipping" value="1">
<input type="hidden" name="no_note" value="1">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="return" value="%url%">
<input type="hidden" name="cancel_return" value="%url%">
<input type="hidden" name="cn" value="Comments">
<input type="hidden" name="tax" value="0">
<strong>Amount: </strong><input type="text" name="amount" value="$%amount%.00" size="6"><br>
<input type="image" src="https://www.paypal.com/images/x-click-but04.gif" border="0" name="submit" alt="Make payments with PayPal - it's fast, free and secure!">
</p>
</form>
</div>
__END__

=head1 NAME

Blosxom Plug-in: paypalform

=head1 SYNOPSIS

Purpose: Populates $paypalform::form with the contents of a 'Donation' PayPal form. It
only generates the form if you are in a part of the blog tree that contains a special file
to turn it on (unless it is configured to always populate the form).

Configurable variables:

   $paypalform::showform: show the form everywhere in this blog
   $paypalform::paypalconfig: the name of a config file to override the current settings
   $paypalform::paypalamount: the size of the donation
   $paypalform::paypalaccount: the name of the account that gets the money

Your PayPal account name is split into pieces and reconstructed so that spiders can't pull
your email address from your page directly. Feel free to leave the current value in place :-)

=head1 VERSION

20030527

=head1 AUTHOR

Bob Schumaker  <cobblers@pobox.com>, http://www.cobblers.net/blog

=head1 SEE ALSO

Blosxom Home/Docs/Licensing: http://www.raelity.org/apps/blosxom/

Blosxom Plugin Docs: http://www.raelity.org/apps/blosxom/plugin.shtml

=head1 BUGS

Address bug reports and comments to the Blosxom mailing list 
[http://www.yahoogroups.com/group/blosxom].

=head1 LICENSE

Blosxom
Copyright 2003, Rael Dornfest 
This Blosxom Plug-in
Copyright 2003, Bob Schumaker 

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.