initial commit, only cron function is left out

CRM/Core/Payment/Stripe.php

+<?php
+ 
+require_once 'CRM/Core/Payment.php';
+ 
+class CRM_Core_Payment_Stripe extends CRM_Core_Payment {
+  /**
+   * We only need one instance of this object. So we use the singleton
+   * pattern and cache the instance in this variable
+   *
+   * @var object
+   * @static
+   */
+  static private $_singleton = null;
+ 
+  /**
+   * mode of operation: live or test
+   *
+   * @var object
+   * @static
+   */
+  static protected $_mode = null;
+ 
+  /**
+   * Constructor
+   *
+   * @param string $mode the mode of operation: live or test
+   *
+   * @return void
+   */
+  function __construct($mode, &$paymentProcessor) {
+    $this->_mode             = $mode;
+    $this->_paymentProcessor = $paymentProcessor;
+    $this->_processorName    = ts('Stripe');
+  }
+ 
+  /**
+   * Singleton function used to manage this object
+   *
+   * @param string $mode the mode of operation: live or test
+   *
+   * @return object
+   * @static
+   *
+   */
+  static function &singleton($mode, &$paymentProcessor) {
+      $processorName = $paymentProcessor['name'];
+      if (self::$_singleton[$processorName] === NULL ) {
+          self::$_singleton[$processorName] = new CRM_Core_Payment_Stripe($mode, $paymentProcessor);
+      }
+      return self::$_singleton[$processorName];
+  }
+ 
+  /**
+   * This function checks to see if we have the right config values
+   *
+   * @return string the error message if any
+   * @public
+   */
+  function checkConfig() {
+    $config = CRM_Core_Config::singleton();
+    $error = array();
+    
+/*     require_once("stripe-php/lib/Stripe.php");
+    Stripe::setApiKey($this->_paymentProcessor['user_name']);
+    $stripe_plan = Stripe_Plan::retrieve('something');
+    CRM_Core_Error::debug('plan', $stripe_plan);*/
+    
+    if (empty($this->_paymentProcessor['user_name'])) {
+      $error[] = ts('The "Secret Key" is not set in the Stripe Payment Processor settings.');
+    }
+ 
+    if (!empty($error)) {
+      return implode('<p>', $error);
+    }
+    else {
+      return NULL;
+    }
+  }
+ 
+  /**
+   * Submit a payment using Stripe's PHP API:
+   * https://stripe.com/docs/api?lang=php
+   *
+   * @param  array $params assoc array of input parameters for this transaction
+   *
+   * @return array the result in a nice formatted array (or an error object)
+   * @public
+   */
+  function doDirectPayment(&$params) {
+    //Include Stripe library & Set API credentials.
+    require_once("stripe-php/lib/Stripe.php");
+    Stripe::setApiKey($this->_paymentProcessor['user_name']);
+    
+    $cc_name = $params['first_name'] . " ";
+    if (strlen($params['middle_name']) > 0) {
+      $cc_name .= $params['middle_name'] . " ";
+    }
+    $cc_name .= $params['last_name'];
+
+    //Stripe amount provided as cents.
+    $amount = $params['amount'] * 100;
+    //It would require 3 digits after the decimal for one to make it this far, CiviCRM prevents this, but let's be redundant.
+    $amount = number_format($amount, 0, '', '');
+
+    //Check for existing customer, create new otherwise.
+    $stripe_customer_id = "";
+    $email = $params['email'];
+    $customer_query = "SELECT id FROM civicrm_stripe_customers WHERE email = '$email'";
+    $customer_query_res = CRM_Core_DAO::singleValueQuery($customer_query);
+    
+    //Prepare Card details in advance to use for new Stripe Customer object if we need.
+    $card_details = array(
+  	  'number' => $params['credit_card_number'], 
+  	  'exp_month' => $params['month'], 
+  	  'exp_year' => $params['year'],
+      'cvc' => $params['cvv2'],
+      'name' => $cc_name,
+      'address_line1' => $params['street_address'],
+      'address_state' => $params['state_province'],
+      'address_zip' => $params['postal_code'],
+      //'address_country' => $params['country']
+    );
+    
+    if(!isset($customer_query_res)) {
+      $new_stripe_customer = Stripe_Customer::create(array(
+  		'description' => 'Donor from CiviCRM',
+  		'card' => $card_details,
+        'email' => $email,
+      ));
+      
+      if(isset($new_stripe_customer)) {
+        $stripe_customer_id = $new_stripe_customer->id;
+        $new_customer_insert = "INSERT INTO civicrm_stripe_customers (email, id) VALUES ('$email', '$stripe_customer_id')";
+        CRM_Core_DAO::executeQuery($new_customer_insert);
+      }
+    } else {
+      $existing_stripe_customer = Stripe_Customer::retrieve($customer_query_res);
+      if(!empty($existing_stripe_customer)) {
+        $stripe_customer_id = $customer_query_res;
+      } else {
+        /*
+        Silent error.  
+        Email the admin that they have a customer entered in civicrm_stripe_customers DB table that don't exist in their Stripe account. 
+        */
+        $mail_msg = "You have a customer ($email) entered in civicrm_stripe_customers DB table that don't exist in your Stripe account.  They have been successfully charged, but it won't be assigned to a 'Customer' within Stripe.  To resolve this, either delete the entry in the database, or edit it and update with their current Stripe Customer ID.";
+        $mail_params = array(
+  		  'from' => 'jwjoshuawalker@gmail.com',
+  		  'toEmail' => 'jwjoshuawalker@gmail.com',
+  		  'subject' => 'NEW STRIPE CUSTOMER',
+  		  'text' => $mail_msg,
+  		  'html' => $mail_msg
+        );
+    CRM_Utils_Mail::send($mail_params);
+      }
+    }
+    
+    //Prepare the charge array, minus Customer/Card details.
+    $stripe_charge = array(
+      'amount' => $amount, 
+      'currency' => 'usd',
+      'description' => '#CiviCRM Donation Page# ' . $params['description'] .  ' #Invoice ID# ' . $params['invoiceID'],
+    );
+
+    //Use Stripe Customer if we have a valid one.  Otherwise just use the card.
+    if(!empty($stripe_customer_id)) {
+      $stripe_charge['customer'] = $stripe_customer_id;
+    } else {
+      $stripe_charge['card'] = $card_details;
+    }
+    
+    if (CRM_Utils_Array::value('is_recur', $params) && $params['contributionRecurID']) {
+      return $this->doRecurPayment($params, $amount, $stripe_customer_id, $card_details);
+    }
+
+    //Fire away!
+    $stripe_response = Stripe_Charge::create($stripe_charge);
+    $params['trxn_id'] = $stripe_response->id;
+
+    return $params;
+  }
+  
+  function doRecurPayment(&$params, $amount, $stripe_customer_id, $card_details) {
+    $frequency = $params['frequency_unit'];
+    $installments = $params['installments'];
+    $plan_id = "$frequency-$amount";
+    
+    $stripe_plan_query = "SELECT plan_id FROM civicrm_stripe_plans WHERE plan_id = '$plan_id'";
+    $stripe_plan_query_res = CRM_Core_DAO::singleValueQuery($stripe_plan_query);
+    
+    if(!isset($stripe_plan_query_res)) {
+      //Create a new Plan
+      $stripe_plan = Stripe_Plan::create(array( 
+      	"amount" => $amount,
+      	"interval" => $frequency,
+      	"name" => "CiviCRM $frequency" . 'ly ' . $amount,
+      	"currency" => "usd",
+      	"id" => $plan_id));
+      $new_plan_insert = "INSERT INTO civicrm_stripe_plans (plan_id) VALUES ('$plan_id')";
+      CRM_Core_DAO::executeQuery($new_plan_insert);
+    }
+    
+    //Get the full Customer object from Stripe and attach the Subscription
+    $stripe_customer = Stripe_Customer::retrieve($stripe_customer_id); 
+    $stripe_response = $stripe_customer->updateSubscription(array('prorate' => FALSE, 'plan' => $plan_id, 'card' => $card_details));
+    
+    //Calculate timestamp for the last installment
+    $end_time = strtotime("+$installments $frequency");
+    $new_subscription_insert = "INSERT INTO civicrm_stripe_subscriptions (customer_id, plan_id, end_time) VALUES ('$stripe_customer_id', '$plan_id', '$end_time')";
+    CRM_Core_DAO::executeQuery($new_subscription_insert);
+    
+    $params['trxn_id'] = $plan_id . ' ' . $stripe_response->start;
+    
+    return $params;
+  }
+ 
+  /**
+   * Transfer method not in use
+   *
+   * @param array $params  name value pair of contribution data
+   *
+   * @return void
+   * @access public
+   *
+   */
+  function doTransferCheckout(&$params, $component) {
+    CRM_Core_Error::fatal(ts('Use direct billing instead of Transfer method.'));
+  }
+}
\ No newline at end of file

README.md

+Installing Stripe as a payment processor in CiviCRM 4.x
+
+Folder structure is left in tact, but there is only 1 file and this is where it goes:
+Stripe.php in civicrm/CRM/Core/Payment/Stripe.php
+
+Copy Stripe's PHP library folder 'stripe-php' to civicrm/packages/stripe-php
+You can get Stripe's PHP library here: https://github.com/stripe/stripe-php
+
+Run the included SQL file "civicrm_stripe.sql" to:
+Insert Stripe into civicrm_payment_processor_type (makes it available as an option within CiviCRM's payment processor settings)
+Create table civicrm_stripe_customers
+Create table civicrm_stripe_plans
+Create table civicrm_stripe_subscriptions

civicrm_stripe.sql

+INSERT INTO `civicrm_payment_processor_type` (`id`, `name`, `title`, `description`, `is_active`, `is_default`, `user_name_label`, `password_label`, `signature_label`, `subject_label`, `class_name`, `url_site_default`, `url_api_default`, `url_recur_default`, `url_button_default`, `url_site_test_default`, `url_api_test_default`, `url_recur_test_default`, `url_button_test_default`, `billing_mode`, `is_recur`, `payment_type`) VALUES
+(16, 'Stripe', 'Stripe', NULL, 1, NULL, 'Secret Key', 'Publishable Key', NULL, NULL, 'Payment_Stripe', 'https://api.stripe.com/v1', NULL, 'https://api.stripe.com/v1', NULL, 'https://api.stripe.com/v1', NULL, 'https://api.stripe.com/v1', NULL, 1, 1, 1);
+
+
+--
+-- Table structure for table `civicrm_stripe_customers`
+--
+
+CREATE TABLE IF NOT EXISTS `civicrm_stripe_customers` (
+  `email` varchar(64) COLLATE utf8_unicode_ci DEFAULT NULL,
+  `id` varchar(255) COLLATE utf8_unicode_ci DEFAULT NULL,
+  UNIQUE KEY `email` (`email`)
+) DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
+
+
+--
+-- Table structure for table `civicrm_stripe_plans`
+--
+
+CREATE TABLE IF NOT EXISTS `civicrm_stripe_plans` (
+  `plan_id` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
+  UNIQUE KEY `plan_id` (`plan_id`)
+) DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
+
+
+--
+-- Table structure for table `civicrm_stripe_subscriptions`
+--
+
+CREATE TABLE IF NOT EXISTS `civicrm_stripe_subscriptions` (
+  `customer_id` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
+  `plan_id` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
+  `end_time` int(11) NOT NULL DEFAULT '0',
+  KEY `end_time` (`end_time`)
+) DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;