+sub make_thirdparty_payment {
+ my $payment_info = payment_info('session_id' => $session_id);
+ $cgi->param('payby_method') =~ /^(CC|ECHECK|PAYPAL)$/
+ or die "illegal payby method";
+ $payment_info->{'payby_method'} = $1;
+ $payment_info->{'error'} = $cgi->param('error');
+
+ $payment_info;
+}
+
+sub post_thirdparty_payment {
+ $cgi->param('payby_method') =~ /^(CC|ECHECK|PAYPAL)$/
+ or die "illegal payby method";
+ my $method = $1;
+ $cgi->param('amount') =~ /^(\d+(\.\d*)?)$/
+ or die "illegal amount";
+ my $amount = $1;
+ my $result = start_thirdparty(
+ 'session_id' => $session_id,
+ 'method' => $method,
+ 'amount' => $amount,
+ );
+ if ( $result->{error} ) {
+ $cgi->param('action', 'make_thirdparty_payment');
+ $cgi->param('error', $result->{error});
+ print $cgi->redirect( $cgi->self_url );
+ exit;
+ }
+
+ $result;
+}
+
+sub finish_thirdparty_payment {
+ my %param = $cgi->Vars;
+ finish_thirdparty( 'session_id' => $session_id, %param );
+ # result contains either 'error' => error message, or the payment details
+}
+
+sub cancel_thirdparty_payment {
+ $action = 'make_thirdparty_payment';
+ finish_thirdparty( 'session_id' => $session_id, '_cancel' => 1 );
+}
+
+sub make_term_payment {
+ $cgi->param('amount') =~ /^(\d+\.\d{2})$/
+ or die "illegal payment amount";
+ my $balance = $1;
+ $cgi->param('discount_term') =~ /^(\d+)$/
+ or die "illegal discount term";
+ my $discount_term = $1;
+ $action = 'make_payment';
+ ({ %{payment_info( 'session_id' => $session_id )},
+ 'balance' => $balance,
+ 'discount_term' => $discount_term,
+ })
+}
+