webgui/lib/WebGUI/Shop/PayDriver.pm
2009-07-22 22:00:45 +00:00

807 lines
23 KiB
Perl

package WebGUI::Shop::PayDriver;
=head1 LEGAL
-------------------------------------------------------------------
WebGUI is Copyright 2001-2009 Plain Black Corporation.
-------------------------------------------------------------------
Please read the legal notices (docs/legal.txt) and the license
(docs/license.txt) that came with this distribution before using
this software.
-------------------------------------------------------------------
http://www.plainblack.com info@plainblack.com
-------------------------------------------------------------------
=cut
use strict;
use Class::InsideOut qw{ :std };
use Carp qw(croak);
use Tie::IxHash;
use WebGUI::Exception::Shop;
use WebGUI::Inbox;
use WebGUI::International;
use WebGUI::HTMLForm;
use WebGUI::Macro;
use WebGUI::User;
use WebGUI::Shop::Cart;
use JSON;
use Clone qw/clone/;
use Scalar::Util qw/blessed/;
=head1 NAME
Package WebGUI::Shop::PayDriver
=head1 DESCRIPTION
This package is the base class for all modules which implement a payment driver.
=head1 SYNOPSIS
use WebGUI::Shop::PayDriver;
my $payDriver = WebGUI::Shop::PayDriver->new($session);
=head1 METHODS
These subroutines are available from this package:
=cut
readonly session => my %session;
readonly className => my %className;
readonly paymentGatewayId => my %paymentGatewayId;
readonly options => my %options;
#-------------------------------------------------------------------
=head2 _buildObj ( )
Private method used to build objects, shared by new and create.
=cut
sub _buildObj {
my ($class, $session, $requestedClass, $paymentGatewayId, $options) = @_;
my $self = {};
bless $self, $requestedClass;
register $self;
my $id = id $self;
$session{ $id } = $session;
$options{ $id } = $options;
$className{ $id } = $requestedClass;
$paymentGatewayId{ $id } = $paymentGatewayId;
return $self;
}
#-------------------------------------------------------------------
=head2 cancelRecurringPayment ( transaction )
Cancels a recurring transaction. Returns an array containing ( isSuccess, gatewayStatus, gatewayError). Needs to be overridden by subclasses capable of dealing with recurring payments.
=head3 transaction
The instanciated recurring transaction object.
=cut
sub cancelRecurringPayment {
my $self = shift;
my $transaction = shift;
WebGUI::Error::OverrideMe->throw();
}
#-------------------------------------------------------------------
=head2 canUse ( user )
Checks to see if the user can use this Payment Driver. Ability to use
is based on whether or not this user has the correct privileges, and if
the driver is enabled or not.
=head3 user
A hashref containing user information. The user referenced will be checked
to see if they can use the Payment Driver. If missing, then $session->user
will be used.
=head4 userId
A userId used to build a user object.
=head4 user
A user object that will be used directly.
=cut
sub canUse {
my $self = shift;
return 0 unless $self->get('enabled');
my $user = shift;
my $userObject;
if (!defined $user or ref($user) ne 'HASH') {
$userObject = $self->session->user;
}
else {
if (exists $user->{user}) {
$userObject = $user->{user};
}
elsif (exists $user->{userId}) {
$userObject = WebGUI::User->new($self->session, $user->{userId});
}
else {
WebGUI::Error::InvalidParam->throw(error => q{Must provide user information})
}
}
return $userObject->isInGroup($self->get('groupToUse'));
}
#-------------------------------------------------------------------
=head2 className ( )
Accessor for the className of the object. This is the name of the driver that is used
to do calculations.
=cut
#-------------------------------------------------------------------
=head2 create ( $session, $options )
Constructor for new WebGUI::Shop::PayDriver objects. Returns a WebGUI::Shop::PayDriver object.
To access driver objects that have already been configured, use C<new>.
=head3 $session
A WebGUI::Session object.
=head4 $options
A list of properties to assign to this PayDriver. See C<definition> for details.
=cut
sub create {
my $class = shift;
my $session = shift;
WebGUI::Error::InvalidParam->throw(error => q{Must provide a session variable})
unless ref $session eq 'WebGUI::Session';
my $options = shift;
WebGUI::Error::InvalidParam->throw(error => q{Must provide a hashref of options})
unless ref $options eq 'HASH' and scalar keys %{ $options };
WebGUI::Error::InvalidParam->throw(error => q{Must provide a human readable label in the hashref of options})
unless exists $options->{label} && $options->{label};
# Generate a unique id for this payment
my $paymentGatewayId = $session->id->generate;
# Build object
my $self = WebGUI::Shop::PayDriver->_buildObj($session, $class, $paymentGatewayId, $options);
# and persist this instance in the db
$session->db->write('insert into paymentGateway (paymentGatewayId, className) VALUES (?,?)', [
$paymentGatewayId,
$class,
]);
# Set the options via the update method because update() will automatically serialize the options hash
$self->update($options);
return $self;
}
#-------------------------------------------------------------------
=head2 definition ( $session )
This subroutine returns an arrayref of hashrefs, used to validate data put into
the object by the user, and to automatically generate the edit form to show
the user.
=cut
sub definition {
my $class = shift;
my $session = shift;
WebGUI::Error::InvalidParam->throw(error => q{Must provide a session variable})
unless ref $session eq 'WebGUI::Session';
my $definition = shift || [];
my $i18n = WebGUI::International->new($session, 'PayDriver');
tie my %fields, 'Tie::IxHash';
%fields = (
label => {
fieldType => 'text',
label => $i18n->get('label'),
hoverHelp => $i18n->get('label help'),
defaultValue => "Credit Card",
},
enabled => {
fieldType => 'yesNo',
label => $i18n->get('enabled'),
hoverHelp => $i18n->get('enabled help'),
defaultValue => 1,
},
groupToUse => {
fieldType => 'group',
label => $i18n->get('who can use'),
hoverHelp => $i18n->get('who can use help'),
defaultValue => 7,
},
receiptEmailTemplateId => {
fieldType => 'template',
namespace => "Shop/EmailReceipt",
label => $i18n->get("receipt email template"),
hoverHelp => $i18n->get("receipt email template help"),
defaultValue => 'bPz1yk6Y9uwMDMBcmMsSCg',
},
saleNotificationGroupId => {
fieldType => 'group',
label => $i18n->get("sale notification group"),
hoverHelp => $i18n->get("sale notification group help"),
defaultValue => '3',
},
);
my %properties = (
name => 'Payment Driver',
properties => \%fields,
);
push @{ $definition }, \%properties;
return $definition;
}
#-------------------------------------------------------------------
=head2 delete ( )
Removes this PayDriver object from the db.
=cut
sub delete {
my $self = shift;
$self->session->db->write('delete from paymentGateway where paymentGatewayId=?', [
$self->getId,
]);
return;
}
#-------------------------------------------------------------------
=head2 displayPaymentError ( transaction )
The default error message that gets displayed when a payment is rejected.
=cut
sub displayPaymentError {
my ($self, $transaction) = @_;
my $i18n = WebGUI::International->new($self->session, "PayDriver");
my $output = q{<h1>} . $i18n->get('error processing payment') . q{</h1>}
. q{<p>} . $i18n->get('error processing payment message') . q{</p>}
. q{<p>} . $transaction->get('statusMessage') . q{</p>}
. q{<p><a href="?shop=cart;method=checkout">} . $i18n->get( 'try again' ) . q{</a></p>}
;
return $self->session->style->userStyle($output);
}
#-------------------------------------------------------------------
=head2 get ( [ $param ] )
This is an enhanced accessor for the options property. By default,
it returns all the options as a hashref. If the name of a key
in the hash is passed, it will only return that value from the
options hash.
=head3 $param
An optional parameter. If it matches the key of a hash, it will
return the value from the options hash.
=cut
sub get {
my $self = shift;
my $param = shift;
my $options = $self->options;
if (defined $param) {
return $options->{ $param };
}
else {
return { %{ $options } };
}
}
#-------------------------------------------------------------------
=head2 getAddress ( addressId )
Returns an instantiated WebGUI::Shop::Address object for the passed address id.
=head3 addressId
The id of the adress to instantiate.
=cut
sub getAddress {
my $self = shift;
my $addressId = shift;
if ($addressId) {
return $self->getCart->getAddressBook->getAddress( $addressId );
}
return undef;
}
#-------------------------------------------------------------------
=head2 getButton ( )
Returns the form that will take the user to check out.
=cut
sub getButton {
my $self = shift;
}
#-------------------------------------------------------------------
=head2 getCart ( )
Returns the WebGUI::Shop::Cart object for the current session.
=cut
sub getCart {
my $self = shift;
my $cart = WebGUI::Shop::Cart->newBySession( $self->session );
return $cart;
}
#-------------------------------------------------------------------
=head2 getDoFormTags ( $method, $htmlForm )
Returns a string containing the required form fields for doing a www_do method call. If an HTMLForm object is
passed the fields are automatically added to it. In that case no form tags a returned by this method.
=head3 $htmlForm
The HTMLForm object you want to add the fields to. This is optional.
=cut
sub getDoFormTags {
my $self = shift;
my $doMethod = shift;
my $htmlForm = shift;
my $session = $self->session;
if ($htmlForm) {
$htmlForm->hidden(name => 'shop', value => 'pay');
$htmlForm->hidden(name => 'method', value => 'do');
$htmlForm->hidden(name => 'do', value => $doMethod);
$htmlForm->hidden(name => 'paymentGatewayId', value => $self->getId);
return undef;
}
else {
return WebGUI::Form::hidden($session, { name => 'shop', value => 'pay' })
. WebGUI::Form::hidden($session, { name => 'method', value => 'do' })
. WebGUI::Form::hidden($session, { name => 'do', value => $doMethod })
. WebGUI::Form::hidden($session, { name => 'paymentGatewayId', value => $self->getId })
}
}
#-------------------------------------------------------------------
=head2 getEditForm ( )
Returns the configuration form for the options of this plugin.
=cut
sub getEditForm {
my $self = shift;
my $definition = $self->definition($self->session);
my $form = WebGUI::HTMLForm->new($self->session);
$form->submit;
$self->getDoFormTags('editSave', $form);
$form->hidden(
name => 'className',
value => $self->className,
);
$form->dynamicForm($definition, 'properties', $self);
return $form;
}
#-------------------------------------------------------------------
=head2 getId ( )
Returns the paymentGatewayId.
=cut
sub getId {
my $self = shift;
return $self->paymentGatewayId;
}
#-------------------------------------------------------------------
=head2 getName ( )
Return a human readable name for this driver. Never overridden in the
subclass, instead specified in definition with the name "name".
This is a class method.
=cut
sub getName {
my $class = shift;
my $session = shift;
WebGUI::Error::InvalidParam->throw(error => q{Must provide a session variable})
unless ref $session eq 'WebGUI::Session';
my $definition = $class->definition($session);
return $definition->[0]->{name};
}
#-------------------------------------------------------------------
=head2 getSelectAddressButton ( returnMethod, [ buttonLabel ] )
Generates a button for selecting an address.
=head3 returnMethod
The name of the www_ method the selected addressId should be returned to. Without the 'www_' part.
=head3 buttonLabel
The label for the button, defaults to the internationalized version of 'Choose billing address'.
=cut
sub getSelectAddressButton {
my $self = shift;
my $returnMethod = shift;
my $buttonLabel = shift || 'Choose billing address';
my $session = $self->session;
# Generate the json string that defines where the address book posts the selected address
my $callbackParams = {
url => $session->url->page,
params => [
{ name => 'shop', value => 'pay' },
{ name => 'method', value => 'do' },
{ name => 'do', value => $returnMethod },
{ name => 'paymentGatewayId', value => $self->getId },
],
};
my $callbackJson = JSON::to_json( $callbackParams );
# Generate 'Choose billing address' button
my $addressButton = WebGUI::Form::formHeader( $session )
. WebGUI::Form::hidden( $session, { name => 'shop', value => 'address' } )
. WebGUI::Form::hidden( $session, { name => 'method', value => 'view' } )
. WebGUI::Form::hidden( $session, { name => 'callback', value => $callbackJson } )
. WebGUI::Form::submit( $session, { value => $buttonLabel } )
. WebGUI::Form::formFooter( $session );
return $addressButton;
}
#-------------------------------------------------------------------
=head2 handlesRecurring ()
Returns 0. Should be overridden to return 1 by any subclasses that can handle recurring payments.
=cut
sub handlesRecurring {
return 0;
}
#-------------------------------------------------------------------
=head2 new ( $session, $paymentGatewayId )
Looks up an existing PayDriver in the db by paymentGatewayId and returns
that object.
=cut
sub new {
my $class = shift;
my $session = shift;
WebGUI::Error::InvalidParam->throw(error => q{Must provide a session variable})
unless ref $session eq 'WebGUI::Session';
my $paymentGatewayId = shift;
WebGUI::Error::InvalidParam->throw(error => q{Must provide a paymentGatewayId})
unless defined $paymentGatewayId;
# Fetch the instance data from the db
my $properties = $session->db->quickHashRef('select * from paymentGateway where paymentGatewayId=?', [
$paymentGatewayId,
]);
WebGUI::Error::ObjectNotFound->throw(error => q{paymentGatewayId not found in db}, id => $paymentGatewayId)
unless scalar keys %{ $properties };
croak "Somehow, the options property of this object, $paymentGatewayId, got broken in the db"
unless exists $properties->{options} and $properties->{options};
my $options = from_json($properties->{options});
my $self = WebGUI::Shop::PayDriver->_buildObj($session, $class, $paymentGatewayId, $options);
return $self;
}
#-------------------------------------------------------------------
=head2 options ( )
Accessor for the driver properties. This returns a hashref
any driver specific properties. To set the properties, use
the C<set> method.
=cut
#-------------------------------------------------------------------
=head2 processPayment ()
Should interact with the payment gateway and then return an array containing success/failure (as 1 or 0), transaction code (or payment gateway's transaction id), status code, and status message. Must be overridden by subclasses.
=cut
sub processPayment {
my $self = shift;
WebGUI::Error::OverrideMe->throw(error=>'Override processPayment()');
}
#-------------------------------------------------------------------
=head2 processPropertiesFromFormPost ( )
Updates ship driver with data from Form.
=cut
sub processPropertiesFromFormPost {
my $self = shift;
my %properties;
my $fullDefinition = $self->definition($self->session);
foreach my $definition (@{$fullDefinition}) {
foreach my $property (keys %{$definition->{properties}}) {
$properties{$property} = $self->session->form->process(
$property,
$definition->{properties}{$property}{fieldType},
$definition->{properties}{$property}{defaultValue}
);
}
}
$properties{label} = $fullDefinition->[0]{name} if ($properties{label} eq "" || lc($properties{label}) eq "untitled");
$self->update(\%properties);
}
#-------------------------------------------------------------------
=head2 processTransaction ( [ object ] )
This method is responsible for handling success or failure from the payment processor, completing or denying the transaction, and sending out notification and receipt emails. Returns a WebGUI::Shop::Transaction object.
=head3 object
Can be undef, in which case a WebGUI::Shop::Transaction object will be generated using the cart. Can also be a reference to a WebGUI::Shop::Address object that should be attached as payment information to the autogenerated WebGUI::Shop::Transaction. Or can be a WebGUI::Shop::Transaction that you've already constructed and then no transaction will be generated, but rather just updated.
=cut
sub processTransaction {
my ($self, $object) = @_;
my $cart = $self->getCart;
# determine object type
my $transaction;
my $paymentAddress;
if (blessed $object) {
if ($object->isa('WebGUI::Shop::Transaction')) {
$transaction = $object;
}
elsif ($object->isa('WebGUI::Shop::Address')) {
$paymentAddress = $object;
}
}
# Setup dynamic transaction
unless (defined $transaction) {
my $transactionProperties;
$transactionProperties->{ paymentMethod } = $self;
$transactionProperties->{ cart } = $cart;
$transactionProperties->{ paymentAddress } = $paymentAddress if defined $paymentAddress;
$transactionProperties->{ isRecurring } = $cart->requiresRecurringPayment;
# Create a transaction...
$transaction = WebGUI::Shop::Transaction->create( $self->session, $transactionProperties );
}
# And handle the payment for it
my ($success, $transactionCode, $statusCode, $statusMessage) = $self->processPayment( $transaction );
if ($success) {
$transaction->completePurchase($transactionCode, $statusCode, $statusMessage);
$cart->onCompletePurchase;
$self->sendNotifications($transaction);
}
else {
$transaction->denyPurchase($transactionCode, $statusCode, $statusMessage);
}
return $transaction;
}
#-------------------------------------------------------------------
=head2 session ( )
Accessor for the session object. Returns the session object.
=cut
#-------------------------------------------------------------------
=head2 sendNotifications ( transaction )
Sends out a receipt and a sale notification to the buyer and the store owner respectively.
=cut
sub sendNotifications {
my ($self, $transaction) = @_;
my $session = $self->session;
my $i18n = WebGUI::International->new($session, 'PayDriver');
my $url = $session->url;
my $var = $transaction->getTransactionVars;
# render
my $template = WebGUI::Asset::Template->new( $session, $self->get("receiptEmailTemplateId") );
my $inbox = WebGUI::Inbox->new($session);
my $receipt = $template->process( $var );
WebGUI::Macro::process($session, \$receipt);
# purchase receipt
$inbox->addMessage( {
message => $receipt,
subject => $i18n->get('receipt subject') . ' ' . $transaction->get('orderNumber'),
userId => $transaction->get('userId'),
status => 'completed',
} );
# shop owner notification
# Shop owner uses method=view rather than method=viewMy
$var->{viewDetailUrl} = $url->page( 'shop=transaction;method=view;transactionId='.$transaction->getId, 1 );
my $notification = $template->process( $var );
WebGUI::Macro::process($session, \$notification);
$inbox->addMessage( {
message => $notification,
subject => $i18n->get('a sale has been made') . ' ' . $transaction->get('orderNumber'),
groupId => $self->get('saleNotificationGroupId'),
status => 'unread',
} );
}
#-------------------------------------------------------------------
=head2 update ( $options )
Setter for user configurable options in the payment objects.
=head4 $options
A list of properties to assign to this PayDriver. See C<definition> for details. The options are
flattened into JSON and stored in the database as text. There is no content checking performed.
=cut
sub update {
my $self = shift;
my $properties = shift;
WebGUI::Error::InvalidParam->throw(error => 'update was not sent a hashref of options to store in the database')
unless ref $properties eq 'HASH' and scalar keys %{ $properties };
my $jsonOptions = to_json($properties);
$self->session->db->write('update paymentGateway set options=? where paymentGatewayId=?', [
$jsonOptions,
$self->paymentGatewayId
]);
my $storedProperties = clone $properties;
$options{ id $self } = $storedProperties;
return;
}
#-------------------------------------------------------------------
=head2 paymentGatewayId ( )
Accessor for the unique identifier for this PayDriver. The paymentGatewayId is
a GUID.
=cut
#-------------------------------------------------------------------
=head2 www_edit ( )
Generates an edit form.
=cut
sub www_edit {
my $self = shift;
my $session = $self->session;
my $admin = WebGUI::Shop::Admin->new($session);
my $i18n = WebGUI::International->new($session, "PayDriver");
return $session->privilege->insufficient() unless $session->user->isAdmin;
my $form = $self->getEditForm;
$form->submit;
return $admin->getAdminConsole->render($form->print, $i18n->get('payment methods'));
}
#-------------------------------------------------------------------
=head2 www_editSave ( )
Saves the data from the post.
=cut
sub www_editSave {
my $self = shift;
my $session = $self->session;
return $session->privilege->insufficient() unless $session->user->isAdmin;
$self->processPropertiesFromFormPost;
$session->http->setRedirect($session->url->page('shop=pay;method=manage'));
return undef;
}
1;