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PhortuneStripePaymentProvider.php
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Mon, Dec 23, 03:10

PhortuneStripePaymentProvider.php
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<?php
final class PhortuneStripePaymentProvider extends PhortunePaymentProvider {
public function isEnabled() {
return $this->getPublishableKey() &&
$this->getSecretKey();
}
public function getProviderType() {
return 'stripe';
}
public function getProviderDomain() {
return 'stripe.com';
}
public function getPaymentMethodDescription() {
return pht('Add Credit or Debit Card (US and Canada)');
}
public function getPaymentMethodIcon() {
return celerity_get_resource_uri('/rsrc/image/phortune/stripe.png');
}
public function getPaymentMethodProviderDescription() {
return pht('Processed by Stripe');
}
public function canHandlePaymentMethod(PhortunePaymentMethod $method) {
$type = $method->getMetadataValue('type');
return ($type === 'stripe.customer');
}
/**
* @phutil-external-symbol class Stripe_Charge
*/
protected function executeCharge(
PhortunePaymentMethod $method,
PhortuneCharge $charge) {
$secret_key = $this->getSecretKey();
$params = array(
'amount' => $charge->getAmountInCents(),
'currency' => 'usd',
'customer' => $method->getMetadataValue('stripe.customerID'),
'description' => $charge->getPHID(),
'capture' => true,
);
$stripe_charge = Stripe_Charge::create($params, $secret_key);
$id = $stripe_charge->id;
if (!$id) {
throw new Exception("Stripe charge call did not return an ID!");
}
$charge->setMetadataValue('stripe.chargeID', $id);
}
private function getPublishableKey() {
return PhabricatorEnv::getEnvConfig('phortune.stripe.publishable-key');
}
private function getSecretKey() {
return PhabricatorEnv::getEnvConfig('phortune.stripe.secret-key');
}
/* -( Adding Payment Methods )--------------------------------------------- */
public function canCreatePaymentMethods() {
return true;
}
/**
* @phutil-external-symbol class Stripe_Token
* @phutil-external-symbol class Stripe_Customer
*/
public function createPaymentMethodFromRequest(
AphrontRequest $request,
PhortunePaymentMethod $method,
array $token) {
$errors = array();
$root = dirname(phutil_get_library_root('phabricator'));
require_once $root.'/externals/stripe-php/lib/Stripe.php';
$secret_key = $this->getSecretKey();
$stripe_token = $token['stripeCardToken'];
// First, make sure the token is valid.
$info = id(new Stripe_Token())->retrieve($stripe_token, $secret_key);
$account_phid = $method->getAccountPHID();
$author_phid = $method->getAuthorPHID();
$params = array(
'card' => $stripe_token,
'description' => $account_phid.':'.$author_phid,
);
// Then, we need to create a Customer in order to be able to charge
// the card more than once. We create one Customer for each card;
// they do not map to PhortuneAccounts because we allow an account to
// have more than one active card.
$customer = Stripe_Customer::create($params, $secret_key);
$card = $info->card;
$method
->setBrand($card->type)
->setLastFourDigits($card->last4)
->setExpires($card->exp_year, $card->exp_month)
->setMetadata(
array(
'type' => 'stripe.customer',
'stripe.customerID' => $customer->id,
'stripe.cardToken' => $stripe_token,
));
return $errors;
}
public function renderCreatePaymentMethodForm(
AphrontRequest $request,
array $errors) {
$ccform = id(new PhortuneCreditCardForm())
->setUser($request->getUser())
->setErrors($errors)
->addScript('https://js.stripe.com/v2/');
Javelin::initBehavior(
'stripe-payment-form',
array(
'stripePublishableKey' => $this->getPublishableKey(),
'formID' => $ccform->getFormID(),
));
return $ccform->buildForm();
}
private function getStripeShortErrorCode($error_code) {
$prefix = 'cc:stripe:';
if (strncmp($error_code, $prefix, strlen($prefix))) {
return null;
}
return substr($error_code, strlen($prefix));
}
public function validateCreatePaymentMethodToken(array $token) {
return isset($token['stripeCardToken']);
}
public function translateCreatePaymentMethodErrorCode($error_code) {
$short_code = $this->getStripeShortErrorCode($error_code);
if ($short_code) {
static $map = array(
'error:invalid_number' => PhortuneErrCode::ERR_CC_INVALID_NUMBER,
'error:invalid_cvc' => PhortuneErrCode::ERR_CC_INVALID_CVC,
'error:invalid_expiry_month' => PhortuneErrCode::ERR_CC_INVALID_EXPIRY,
'error:invalid_expiry_year' => PhortuneErrCode::ERR_CC_INVALID_EXPIRY,
);
if (isset($map[$short_code])) {
return $map[$short_code];
}
}
return $error_code;
}
/**
* See https://stripe.com/docs/api#errors for more information on possible
* errors.
*/
public function getCreatePaymentMethodErrorMessage($error_code) {
$short_code = $this->getStripeShortErrorCode($error_code);
if (!$short_code) {
return null;
}
switch ($short_code) {
case 'error:incorrect_number':
$error_key = 'number';
$message = pht('Invalid or incorrect credit card number.');
break;
case 'error:incorrect_cvc':
$error_key = 'cvc';
$message = pht('Card CVC is invalid or incorrect.');
break;
$error_key = 'exp';
$message = pht('Card expiration date is invalid or incorrect.');
break;
case 'error:invalid_expiry_month':
case 'error:invalid_expiry_year':
case 'error:invalid_cvc':
case 'error:invalid_number':
// NOTE: These should be translated into Phortune error codes earlier,
// so we don't expect to receive them here. They are listed for clarity
// and completeness. If we encounter one, we treat it as an unknown
// error.
break;
case 'error:invalid_amount':
case 'error:missing':
case 'error:card_declined':
case 'error:expired_card':
case 'error:duplicate_transaction':
case 'error:processing_error':
default:
// NOTE: These errors currently don't recevive a detailed message.
// NOTE: We can also end up here with "http:nnn" messages.
// TODO: At least some of these should have a better message, or be
// translated into common errors above.
break;
}
return null;
}
}

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