[civicrm-core.git] / CRM / Core / Payment / Realex.php

<?php
/*
 +--------------------------------------------------------------------+
 | CiviCRM version 4.6                                                |
 +--------------------------------------------------------------------+
 | This file is a part of CiviCRM.                                    |
 |                                                                    |
 | CiviCRM is free software; you can copy, modify, and distribute it  |
 | under the terms of the GNU Affero General Public License           |
 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
 |                                                                    |
 | CiviCRM is distributed in the hope that it will be useful, but     |
 | WITHOUT ANY WARRANTY; without even the implied warranty of         |
 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
 | See the GNU Affero General Public License for more details.        |
 |                                                                    |
 | You should have received a copy of the GNU Affero General Public   |
 | License and the CiviCRM Licensing Exception along                  |
 | with this program; if not, contact CiviCRM LLC                     |
 | at info[AT]civicrm[DOT]org. If you have questions about the        |
 | GNU Affero General Public License or the licensing of CiviCRM,     |
 | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
 +--------------------------------------------------------------------+
 */


/*
 * Copyright (C) 2009
 * Licensed to CiviCRM under the Academic Free License version 3.0.
 *
 * Written and contributed by Kirkdesigns (http://www.kirkdesigns.co.uk)
 */

/**
 *
 * @package CRM
 * @author Tom Kirkpatrick <tkp@kirkdesigns.co.uk>
 * $Id$
 */
class CRM_Core_Payment_Realex extends CRM_Core_Payment {
  const AUTH_APPROVED = '00';

  protected $_mode = NULL;

  protected $_params = array();

  /**
   * We only need one instance of this object. So we use the singleton
   * pattern and cache the instance in this variable
   *
   * @var object
   */
  static private $_singleton = NULL;

  /**
   * Constructor.
   *
   * @param string $mode
   *   The mode of operation: live or test.
   *
   * @param $paymentProcessor
   *
   * @return \CRM_Core_Payment_Realex
   */
  public function __construct($mode, &$paymentProcessor) {
    $this->_mode = $mode;
    $this->_paymentProcessor = $paymentProcessor;
    $this->_processorName = ts('Realex');

    $this->_setParam('merchant_ref', $paymentProcessor['user_name']);
    $this->_setParam('secret', $paymentProcessor['password']);
    $this->_setParam('account', $paymentProcessor['subject']);

    $this->_setParam('emailCustomer', 'TRUE');
    srand(time());
    $this->_setParam('sequence', rand(1, 1000));
  }

  /**
   * @param array $params
   *
   * @throws Exception
   */
  public function doTransferCheckout(&$params) {
    CRM_Core_Error::fatal(ts('This function is not implemented'));
  }

  /**
   * Submit a payment using Advanced Integration Method.
   *
   * @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) {

    if (!defined('CURLOPT_SSLCERT')) {
      return self::error(9001, ts('RealAuth requires curl with SSL support'));
    }

    $result = $this->setRealexFields($params);

    if ($result !== TRUE) {
      return $result;
    }

    /**********************************************************
     * Check to see if we have a duplicate before we send
     **********************************************************/
    if ($this->checkDupe($params['invoiceID'], CRM_Utils_Array::value('contributionID', $params))) {
      return self::error(9004, ts('It appears that this transaction is a duplicate.  Have you already submitted the form once?  If so there may have been a connection problem.  Check your email for a receipt from Authorize.net.  If you do not receive a receipt within 2 hours you can try your transaction again.  If you continue to have problems please contact the site administrator.'));
    }

    // Create sha1 hash for request
    $hashme = "{$this->_getParam('timestamp')}.{$this->_getParam('merchant_ref')}.{$this->_getParam('order_id')}.{$this->_getParam('amount')}.{$this->_getParam('currency')}.{$this->_getParam('card_number')}";
    $sha1hash = sha1($hashme);
    $hashme = "$sha1hash.{$this->_getParam('secret')}";
    $sha1hash = sha1($hashme);

    // Generate the request xml that is send to Realex Payments.
    $request_xml = "<request type='auth' timestamp='{$this->_getParam('timestamp')}'>
          <merchantid>{$this->_getParam('merchant_ref')}</merchantid>
          <account>{$this->_getParam('account')}</account>
          <orderid>{$this->_getParam('order_id')}</orderid>
          <amount currency='{$this->_getParam('currency')}'>{$this->_getParam('amount')}</amount>
          <card>
        <number>{$this->_getParam('card_number')}</number>
        <expdate>{$this->_getParam('exp_date')}</expdate>
        <type>{$this->_getParam('card_type')}</type>
        <chname>{$this->_getParam('card_name')}</chname>
        <issueno>{$this->_getParam('issue_number')}</issueno>
        <cvn>
            <number>{$this->_getParam('cvn')}</number>
            <presind>1</presind>
        </cvn>
          </card>
          <autosettle flag='1'/>
          <sha1hash>$sha1hash</sha1hash>
          <comments>
            <comment id='1'>{$this->_getParam('comments')}</comment>
          </comments>
          <tssinfo>
            <varref>{$this->_getParam('varref')}</varref>
          </tssinfo>
      </request>";

    /**********************************************************
     * Send to the payment processor using cURL
     **********************************************************/

    $submit = curl_init($this->_paymentProcessor['url_site']);

    if (!$submit) {
      return self::error(9002, ts('Could not initiate connection to payment gateway'));
    }

    curl_setopt($submit, CURLOPT_HTTPHEADER, array('SOAPAction: ""'));
    curl_setopt($submit, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($submit, CURLOPT_TIMEOUT, 60);
    curl_setopt($submit, CURLOPT_SSL_VERIFYPEER, CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME, 'verifySSL'));
    curl_setopt($submit, CURLOPT_HEADER, 0);

    // take caching out of the picture
    curl_setopt($submit, CURLOPT_FORBID_REUSE, 1);
    curl_setopt($submit, CURLOPT_FRESH_CONNECT, 1);

    // Apply the XML to our curl call
    curl_setopt($submit, CURLOPT_POST, 1);
    curl_setopt($submit, CURLOPT_POSTFIELDS, $request_xml);

    $response_xml = curl_exec($submit);

    if (!$response_xml) {
      return self::error(curl_errno($submit), curl_error($submit));
    }

    curl_close($submit);

    // Tidy up the response xml
    $response_xml = preg_replace("/[\s\t]/", " ", $response_xml);
    $response_xml = preg_replace("/[\n\r]/", "", $response_xml);

    // Parse the response xml
    $xml_parser = xml_parser_create();
    if (!xml_parse($xml_parser, $response_xml)) {
      return self::error(9003, 'XML Error');
    }

    $response = $this->xml_parse_into_assoc($response_xml);
    $response = $response['#return']['RESPONSE'];

    // Log the Realex response for debugging
    // CRM_Core_Error::debug_var('REALEX --------- Response from Realex: ', $response, TRUE);

    // Return an error if authentication was not successful
    if ($response['RESULT'] !== self::AUTH_APPROVED) {
      return self::error($response['RESULT'], ' ' . $response['MESSAGE']);
    }

    // Check the response hash
    $hashme = "{$this->_getParam('timestamp')}.{$this->_getParam('merchant_ref')}.{$this->_getParam('order_id')}.{$response['RESULT']}.{$response['MESSAGE']}.{$response['PASREF']}.{$response['AUTHCODE']}";
    $sha1hash = sha1($hashme);
    $hashme = "$sha1hash.{$this->_getParam('secret')}";
    $sha1hash = sha1($hashme);

    if ($response['SHA1HASH'] != $sha1hash) {
      // FIXME: Need to actually check this - I couldn't get the
      // hashes to match so I'm commenting out for now'
      // return self::error( 9001, "Hash error, please report this to the webmaster" );
    }

    // FIXME: We are using the trxn_result_code column to store all these extra details since there
    // seems to be nowhere else to put them. This is THE WRONG THING TO DO!
    $extras = array(
      'authcode' => $response['AUTHCODE'],
      'batch_id' => $response['BATCHID'],
      'message' => $response['MESSAGE'],
      'trxn_result_code' => $response['RESULT'],
    );

    $params['trxn_id'] = $response['PASREF'];
    $params['trxn_result_code'] = serialize($extras);
    $params['currencyID'] = $this->_getParam('currency');
    $params['gross_amount'] = $this->_getParam('amount');
    $params['fee_amount'] = 0;

    return $params;
  }

  /**
   * Helper function to convert XML string to multi-dimension array.
   *
   * @param string $xml
   *   an XML string.
   *
   * @return array
   *   An array of the result with following keys:
   */
  public function xml_parse_into_assoc($xml) {
    $input = array();
    $result = array();

    $result['#error'] = FALSE;
    $result['#return'] = NULL;

    $xmlparser = xml_parser_create();
    $ret = xml_parse_into_struct($xmlparser, $xml, $input);

    xml_parser_free($xmlparser);

    if (empty($input)) {
      $result['#return'] = $xml;
    }
    else {
      if ($ret > 0) {
        $result['#return'] = $this->_xml_parse($input);
      }
      else {
        $result['#error'] = ts('Error parsing XML result - error code = %1 at line %2 char %3',
          array(
            1 => xml_get_error_code($xmlparser),
            2 => xml_get_current_line_number($xmlparser),
            3 => xml_get_current_column_number($xmlparser),
          )
        );
      }
    }
    return $result;
  }

  /**
   * Private helper for  xml_parse_into_assoc, to recusively parsing the result
   * @param $input
   * @param int $depth
   *
   * @return array
   */
  public function _xml_parse($input, $depth = 1) {
    $output = array();
    $children = array();

    foreach ($input as $data) {
      if ($data['level'] == $depth) {
        switch ($data['type']) {
          case 'complete':
            $output[$data['tag']] = isset($data['value']) ? $data['value'] : '';
            break;

          case 'open':
            $children = array();
            break;

          case 'close':
            $output[$data['tag']] = $this->_xml_parse($children, $depth + 1);
            break;
        }
      }
      else {
        $children[] = $data;
      }
    }
    return $output;
  }

  /**
   *  Format the params from the form ready for sending to Realex.  Also perform some validation
   */
  public function setRealexFields(&$params) {
    if ((int) $params['amount'] <= 0) {
      return self::error(9001, ts('Amount must be positive'));
    }

    // format amount to be in smallest possible units
    //list($bills, $pennies) = explode('.', $params['amount']);
    $this->_setParam('amount', 100 * $params['amount']);

    switch (strtolower($params['credit_card_type'])) {
      case 'mastercard':
        $this->_setParam('card_type', 'MC');
        $this->_setParam('requiresIssueNumber', FALSE);
        break;

      case 'visa':
        $this->_setParam('card_type', 'VISA');
        $this->_setParam('requiresIssueNumber', FALSE);
        break;

      case 'amex':
        $this->_setParam('card_type', 'AMEX');
        $this->_setParam('requiresIssueNumber', FALSE);
        break;

      case 'laser':
        $this->_setParam('card_type', 'LASER');
        $this->_setParam('requiresIssueNumber', FALSE);
        break;

      case 'maestro':
      case 'switch':
      case 'maestro/switch':
      case 'solo':
        $this->_setParam('card_type', 'SWITCH');
        $this->_setParam('requiresIssueNumber', TRUE);
        break;

      default:
        return self::error(9001, ts('Credit card type not supported by Realex:') . ' ' . $params['credit_card_type']);
    }

    // get the card holder name - cater cor customized billing forms
    if (isset($params['cardholder_name'])) {
      $credit_card_name = $params['cardholder_name'];
    }
    else {
      $credit_card_name = $params['first_name'] . " ";
      if (!empty($params['middle_name'])) {
        $credit_card_name .= $params['middle_name'] . " ";
      }
      $credit_card_name .= $params['last_name'];
    }

    $this->_setParam('card_name', $credit_card_name);
    $this->_setParam('card_number', str_replace(' ', '', $params['credit_card_number']));
    $this->_setParam('cvn', $params['cvv2']);
    $this->_setParam('country', $params['country']);
    $this->_setParam('post_code', $params['postal_code']);
    $this->_setParam('order_id', $params['invoiceID']);
    $params['issue_number'] = (isset($params['issue_number']) ? $params['issue_number'] : '');
    $this->_setParam('issue_number', $params['issue_number']);
    $this->_setParam('varref', $params['contributionType_name']);
    $comment = $params['description'] . ' (page id:' . $params['contributionPageID'] . ')';
    $this->_setParam('comments', $comment);
    //$this->_setParam('currency',      $params['currencyID']);

    // set the currency to the default which can be overrided.
    $config = CRM_Core_Config::singleton();
    $this->_setParam('currency', $config->defaultCurrency);

    // Format the expiry date to MMYY
    $expmonth = (string) $params['month'];
    $expmonth = (strlen($expmonth) === 1) ? '0' . $expmonth : $expmonth;
    $expyear = substr((string) $params['year'], 2, 2);
    $this->_setParam('exp_date', $expmonth . $expyear);

    if (isset($params['credit_card_start_date']) && (strlen($params['credit_card_start_date']['M']) !== 0) &&
      (strlen($params['credit_card_start_date']['Y']) !== 0)
    ) {
      $startmonth = (string) $params['credit_card_start_date']['M'];
      $startmonth = (strlen($startmonth) === 1) ? '0' . $startmonth : $startmonth;
      $startyear = substr((string) $params['credit_card_start_date']['Y'], 2, 2);
      $this->_setParam('start_date', $startmonth . $startyear);
    }

    // Create timestamp
    $timestamp = strftime("%Y%m%d%H%M%S");
    $this->_setParam('timestamp', $timestamp);

    return TRUE;
  }

  /**
   * Get the value of a field if set.
   *
   * @param string $field
   *   The field.
   *
   * @return mixed
   *   value of the field, or empty string if the field is
   *   not set
   */
  public function _getParam($field) {
    if (isset($this->_params[$field])) {
      return $this->_params[$field];
    }
    else {
      return '';
    }
  }

  /**
   * Set a field to the specified value.  Value must be a scalar (int,
   * float, string, or boolean)
   *
   * @param string $field
   * @param mixed $value
   *
   * @return bool
   *   false if value is not a scalar, true if successful
   */
  public function _setParam($field, $value) {
    if (!is_scalar($value)) {
      return FALSE;
    }
    else {
      $this->_params[$field] = $value;
    }
  }

  /**
   * @param null $errorCode
   * @param null $errorMessage
   *
   * @return object
   */
  public function &error($errorCode = NULL, $errorMessage = NULL) {
    $e = CRM_Core_Error::singleton();

    if ($errorCode) {
      if ($errorCode == '101' || $errorCode == '102') {
        $display_error = ts('Card declined by bank. Please try with a different card.');
      }
      elseif ($errorCode == '103') {
        $display_error = ts('Card reported lost or stolen. This incident will be reported.');
      }
      elseif ($errorCode == '501') {
        $display_error = ts("It appears that this transaction is a duplicate. Have you already submitted the form once? If so there may have been a connection problem. Check your email for a receipt for this transaction.  If you do not receive a receipt within 2 hours you can try your transaction again.  If you continue to have problems please contact the site administrator.");
      }
      elseif ($errorCode == '509') {
        $display_error = $errorMessage;
      }
      else {
        $display_error = ts('We were unable to process your payment at this time. Please try again later.');
      }
      $e->push($errorCode, 0, NULL, $display_error);
    }
    else {
      $e->push(9001, 0, NULL, ts('We were unable to process your payment at this time. Please try again later.'));
    }
    return $e;
  }

  /**
   * This function checks to see if we have the right config values.
   *
   * @return string
   *   the error message if any
   */
  public function checkConfig() {
    $error = array();
    if (empty($this->_paymentProcessor['user_name'])) {
      $error[] = ts('Merchant ID is not set for this payment processor');
    }

    if (empty($this->_paymentProcessor['password'])) {
      $error[] = ts('Secret is not set for this payment processor');
    }

    if (!empty($error)) {
      return implode('<p>', $error);
    }
    else {
      return NULL;
    }
  }

}
Commit	Line	Data
6a488035 TO	1	<?php
	2	/*
	3	+--------------------------------------------------------------------+
39de6fd5	4	\| CiviCRM version 4.6 \|
6a488035 TO	5	+--------------------------------------------------------------------+
	6	\| This file is a part of CiviCRM. \|
	7	\| \|
	8	\| CiviCRM is free software; you can copy, modify, and distribute it \|
	9	\| under the terms of the GNU Affero General Public License \|
	10	\| Version 3, 19 November 2007 and the CiviCRM Licensing Exception. \|
	11	\| \|
	12	\| CiviCRM is distributed in the hope that it will be useful, but \|
	13	\| WITHOUT ANY WARRANTY; without even the implied warranty of \|
	14	\| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. \|
	15	\| See the GNU Affero General Public License for more details. \|
	16	\| \|
	17	\| You should have received a copy of the GNU Affero General Public \|
	18	\| License and the CiviCRM Licensing Exception along \|
	19	\| with this program; if not, contact CiviCRM LLC \|
	20	\| at info[AT]civicrm[DOT]org. If you have questions about the \|
	21	\| GNU Affero General Public License or the licensing of CiviCRM, \|
	22	\| see the CiviCRM license FAQ at http://civicrm.org/licensing \|
	23	+--------------------------------------------------------------------+
d25dd0ee	24	*/
6a488035 TO	25
	26
	27	/*
d424ffde CW	28	* Copyright (C) 2009
	29	* Licensed to CiviCRM under the Academic Free License version 3.0.
	30	*
	31	* Written and contributed by Kirkdesigns (http://www.kirkdesigns.co.uk)
	32	*/
6a488035 TO	33
	34	/**
	35	*
	36	* @package CRM
	37	* @author Tom Kirkpatrick <tkp@kirkdesigns.co.uk>
	38	* $Id$
	39	*/
	40	class CRM_Core_Payment_Realex extends CRM_Core_Payment {
7da04cde	41	const AUTH_APPROVED = '00';
6a488035 TO	42
	43	protected $_mode = NULL;
	44
	45	protected $_params = array();
	46
	47	/**
	48	* We only need one instance of this object. So we use the singleton
	49	* pattern and cache the instance in this variable
	50	*
	51	* @var object
6a488035 TO	52	*/
	53	static private $_singleton = NULL;
	54
	55	/**
fe482240	56	* Constructor.
6a488035	57	*
6a0b768e TO	58	* @param string $mode
6a0b768e TO	59	* The mode of operation: live or test.
6a488035	60	*
77b97be7 EM	61	* @param $paymentProcessor
	62	*
	63	* @return \CRM_Core_Payment_Realex
6a488035	64	*/
00be9182	65	public function __construct($mode, &$paymentProcessor) {
6a488035 TO	66	$this->_mode = $mode;
	67	$this->_paymentProcessor = $paymentProcessor;
	68	$this->_processorName = ts('Realex');
	69
	70	$this->_setParam('merchant_ref', $paymentProcessor['user_name']);
	71	$this->_setParam('secret', $paymentProcessor['password']);
	72	$this->_setParam('account', $paymentProcessor['subject']);
	73
	74	$this->_setParam('emailCustomer', 'TRUE');
	75	srand(time());
	76	$this->_setParam('sequence', rand(1, 1000));
	77	}
6a488035	78
6c786a9b	79	/**
c490a46a	80	* @param array $params
6c786a9b EM	81	*
	82	* @throws Exception
	83	*/
00be9182	84	public function doTransferCheckout(&$params) {
6a488035 TO	85	CRM_Core_Error::fatal(ts('This function is not implemented'));
	86	}
	87
	88	/**
fe482240	89	* Submit a payment using Advanced Integration Method.
6a488035	90	*
6a0b768e TO	91	* @param array $params
6a0b768e TO	92	* Assoc array of input parameters for this transaction.
6a488035	93	*
a6c01b45 CW	94	* @return array
a6c01b45 CW	95	* the result in a nice formatted array (or an error object)
6a488035	96	*/
00be9182	97	public function doDirectPayment(&$params) {
6a488035 TO	98
	99	if (!defined('CURLOPT_SSLCERT')) {
	100	return self::error(9001, ts('RealAuth requires curl with SSL support'));
	101	}
	102
	103	$result = $this->setRealexFields($params);
	104
	105	if ($result !== TRUE) {
	106	return $result;
	107	}
	108
	109	/**********************************************************
	110	* Check to see if we have a duplicate before we send
	111	**********************************************************/
d253aeb8	112	if ($this->checkDupe($params['invoiceID'], CRM_Utils_Array::value('contributionID', $params))) {
6a488035 TO	113	return self::error(9004, ts('It appears that this transaction is a duplicate. Have you already submitted the form once? If so there may have been a connection problem. Check your email for a receipt from Authorize.net. If you do not receive a receipt within 2 hours you can try your transaction again. If you continue to have problems please contact the site administrator.'));
	114	}
	115
	116	// Create sha1 hash for request
353ffa53	117	$hashme = "{$this->_getParam('timestamp')}.{$this->_getParam('merchant_ref')}.{$this->_getParam('order_id')}.{$this->_getParam('amount')}.{$this->_getParam('currency')}.{$this->_getParam('card_number')}";
6a488035	118	$sha1hash = sha1($hashme);
353ffa53	119	$hashme = "$sha1hash.{$this->_getParam('secret')}";
6a488035 TO	120	$sha1hash = sha1($hashme);
6a488035 TO	121
6a488035 TO	122	// Generate the request xml that is send to Realex Payments.
	123	$request_xml = "<request type='auth' timestamp='{$this->_getParam('timestamp')}'>
	124	<merchantid>{$this->_getParam('merchant_ref')}</merchantid>
	125	<account>{$this->_getParam('account')}</account>
	126	<orderid>{$this->_getParam('order_id')}</orderid>
	127	<amount currency='{$this->_getParam('currency')}'>{$this->_getParam('amount')}</amount>
	128	<card>
	129	<number>{$this->_getParam('card_number')}</number>
	130	<expdate>{$this->_getParam('exp_date')}</expdate>
	131	<type>{$this->_getParam('card_type')}</type>
	132	<chname>{$this->_getParam('card_name')}</chname>
	133	<issueno>{$this->_getParam('issue_number')}</issueno>
	134	<cvn>
	135	<number>{$this->_getParam('cvn')}</number>
	136	<presind>1</presind>
	137	</cvn>
	138	</card>
	139	<autosettle flag='1'/>
	140	<sha1hash>$sha1hash</sha1hash>
	141	<comments>
	142	<comment id='1'>{$this->_getParam('comments')}</comment>
	143	</comments>
	144	<tssinfo>
	145	<varref>{$this->_getParam('varref')}</varref>
	146	</tssinfo>
	147	</request>";
	148
	149	/**********************************************************
	150	* Send to the payment processor using cURL
	151	**********************************************************/
	152
	153	$submit = curl_init($this->_paymentProcessor['url_site']);
	154
	155	if (!$submit) {
	156	return self::error(9002, ts('Could not initiate connection to payment gateway'));
	157	}
	158
	159	curl_setopt($submit, CURLOPT_HTTPHEADER, array('SOAPAction: ""'));
	160	curl_setopt($submit, CURLOPT_RETURNTRANSFER, 1);
	161	curl_setopt($submit, CURLOPT_TIMEOUT, 60);
	162	curl_setopt($submit, CURLOPT_SSL_VERIFYPEER, CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME, 'verifySSL'));
	163	curl_setopt($submit, CURLOPT_HEADER, 0);
	164
	165	// take caching out of the picture
	166	curl_setopt($submit, CURLOPT_FORBID_REUSE, 1);
	167	curl_setopt($submit, CURLOPT_FRESH_CONNECT, 1);
	168
	169	// Apply the XML to our curl call
	170	curl_setopt($submit, CURLOPT_POST, 1);
	171	curl_setopt($submit, CURLOPT_POSTFIELDS, $request_xml);
	172
	173	$response_xml = curl_exec($submit);
	174
	175	if (!$response_xml) {
	176	return self::error(curl_errno($submit), curl_error($submit));
	177	}
	178
	179	curl_close($submit);
	180
b44e3f84	181	// Tidy up the response xml
6a488035 TO	182	$response_xml = preg_replace("/[\s\t]/", " ", $response_xml);
	183	$response_xml = preg_replace("/[\n\r]/", "", $response_xml);
	184
	185	// Parse the response xml
	186	$xml_parser = xml_parser_create();
	187	if (!xml_parse($xml_parser, $response_xml)) {
	188	return self::error(9003, 'XML Error');
	189	}
	190
	191	$response = $this->xml_parse_into_assoc($response_xml);
	192	$response = $response['#return']['RESPONSE'];
	193
	194	// Log the Realex response for debugging
	195	// CRM_Core_Error::debug_var('REALEX --------- Response from Realex: ', $response, TRUE);
	196
	197	// Return an error if authentication was not successful
	198	if ($response['RESULT'] !== self::AUTH_APPROVED) {
	199	return self::error($response['RESULT'], ' ' . $response['MESSAGE']);
	200	}
	201
	202	// Check the response hash
353ffa53	203	$hashme = "{$this->_getParam('timestamp')}.{$this->_getParam('merchant_ref')}.{$this->_getParam('order_id')}.{$response['RESULT']}.{$response['MESSAGE']}.{$response['PASREF']}.{$response['AUTHCODE']}";
6a488035	204	$sha1hash = sha1($hashme);
353ffa53	205	$hashme = "$sha1hash.{$this->_getParam('secret')}";
6a488035 TO	206	$sha1hash = sha1($hashme);
	207
	208	if ($response['SHA1HASH'] != $sha1hash) {
	209	// FIXME: Need to actually check this - I couldn't get the
	210	// hashes to match so I'm commenting out for now'
	211	// return self::error( 9001, "Hash error, please report this to the webmaster" );
	212	}
	213
	214	// FIXME: We are using the trxn_result_code column to store all these extra details since there
	215	// seems to be nowhere else to put them. This is THE WRONG THING TO DO!
	216	$extras = array(
	217	'authcode' => $response['AUTHCODE'],
	218	'batch_id' => $response['BATCHID'],
	219	'message' => $response['MESSAGE'],
	220	'trxn_result_code' => $response['RESULT'],
	221	);
	222
	223	$params['trxn_id'] = $response['PASREF'];
	224	$params['trxn_result_code'] = serialize($extras);
	225	$params['currencyID'] = $this->_getParam('currency');
	226	$params['gross_amount'] = $this->_getParam('amount');
	227	$params['fee_amount'] = 0;
	228
	229	return $params;
	230	}
	231
	232	/**
	233	* Helper function to convert XML string to multi-dimension array.
	234	*
5a4f6742	235	* @param string $xml
6a488035 TO	236	* an XML string.
6a488035 TO	237	*
a6c01b45 CW	238	* @return array
a6c01b45 CW	239	* An array of the result with following keys:
6a488035	240	*/
00be9182	241	public function xml_parse_into_assoc($xml) {
6a488035 TO	242	$input = array();
	243	$result = array();
	244
	245	$result['#error'] = FALSE;
	246	$result['#return'] = NULL;
	247
	248	$xmlparser = xml_parser_create();
	249	$ret = xml_parse_into_struct($xmlparser, $xml, $input);
	250
	251	xml_parser_free($xmlparser);
	252
	253	if (empty($input)) {
	254	$result['#return'] = $xml;
	255	}
	256	else {
	257	if ($ret > 0) {
	258	$result['#return'] = $this->_xml_parse($input);
	259	}
	260	else {
	261	$result['#error'] = ts('Error parsing XML result - error code = %1 at line %2 char %3',
	262	array(
	263	1 => xml_get_error_code($xmlparser),
	264	2 => xml_get_current_line_number($xmlparser),
21dfd5f5	265	3 => xml_get_current_column_number($xmlparser),
6a488035 TO	266	)
	267	);
	268	}
	269	}
	270	return $result;
	271	}
	272
6c786a9b	273	/**
5a4f6742	274	* Private helper for xml_parse_into_assoc, to recusively parsing the result
6c786a9b EM	275	* @param $input
	276	* @param int $depth
	277	*
	278	* @return array
	279	*/
00be9182	280	public function _xml_parse($input, $depth = 1) {
6a488035 TO	281	$output = array();
	282	$children = array();
	283
	284	foreach ($input as $data) {
	285	if ($data['level'] == $depth) {
	286	switch ($data['type']) {
	287	case 'complete':
	288	$output[$data['tag']] = isset($data['value']) ? $data['value'] : '';
	289	break;
	290
	291	case 'open':
	292	$children = array();
	293	break;
	294
	295	case 'close':
	296	$output[$data['tag']] = $this->_xml_parse($children, $depth + 1);
	297	break;
	298	}
	299	}
	300	else {
	301	$children[] = $data;
	302	}
	303	}
	304	return $output;
	305	}
	306
	307	/**
	308	* Format the params from the form ready for sending to Realex. Also perform some validation
	309	*/
00be9182	310	public function setRealexFields(&$params) {
2aa397bc	311	if ((int) $params['amount'] <= 0) {
6a488035 TO	312	return self::error(9001, ts('Amount must be positive'));
	313	}
	314
	315	// format amount to be in smallest possible units
	316	//list($bills, $pennies) = explode('.', $params['amount']);
	317	$this->_setParam('amount', 100 * $params['amount']);
	318
	319	switch (strtolower($params['credit_card_type'])) {
	320	case 'mastercard':
	321	$this->_setParam('card_type', 'MC');
	322	$this->_setParam('requiresIssueNumber', FALSE);
	323	break;
	324
	325	case 'visa':
	326	$this->_setParam('card_type', 'VISA');
	327	$this->_setParam('requiresIssueNumber', FALSE);
	328	break;
	329
	330	case 'amex':
	331	$this->_setParam('card_type', 'AMEX');
	332	$this->_setParam('requiresIssueNumber', FALSE);
	333	break;
	334
	335	case 'laser':
	336	$this->_setParam('card_type', 'LASER');
	337	$this->_setParam('requiresIssueNumber', FALSE);
	338	break;
	339
	340	case 'maestro':
	341	case 'switch':
	342	case 'maestro/switch':
	343	case 'solo':
	344	$this->_setParam('card_type', 'SWITCH');
	345	$this->_setParam('requiresIssueNumber', TRUE);
	346	break;
	347
	348	default:
	349	return self::error(9001, ts('Credit card type not supported by Realex:') . ' ' . $params['credit_card_type']);
	350	}
	351
	352	// get the card holder name - cater cor customized billing forms
	353	if (isset($params['cardholder_name'])) {
	354	$credit_card_name = $params['cardholder_name'];
	355	}
	356	else {
	357	$credit_card_name = $params['first_name'] . " ";
	358	if (!empty($params['middle_name'])) {
	359	$credit_card_name .= $params['middle_name'] . " ";
	360	}
	361	$credit_card_name .= $params['last_name'];
	362	}
	363
	364	$this->_setParam('card_name', $credit_card_name);
	365	$this->_setParam('card_number', str_replace(' ', '', $params['credit_card_number']));
	366	$this->_setParam('cvn', $params['cvv2']);
	367	$this->_setParam('country', $params['country']);
	368	$this->_setParam('post_code', $params['postal_code']);
	369	$this->_setParam('order_id', $params['invoiceID']);
	370	$params['issue_number'] = (isset($params['issue_number']) ? $params['issue_number'] : '');
	371	$this->_setParam('issue_number', $params['issue_number']);
	372	$this->_setParam('varref', $params['contributionType_name']);
	373	$comment = $params['description'] . ' (page id:' . $params['contributionPageID'] . ')';
	374	$this->_setParam('comments', $comment);
	375	//$this->_setParam('currency', $params['currencyID']);
376
377	// set the currency to the default which can be overrided.
378	$config = CRM_Core_Config::singleton();
379	$this->_setParam('currency', $config->defaultCurrency);
380
381	// Format the expiry date to MMYY
2aa397bc	382	$expmonth = (string) $params['month'];
6a488035	383	$expmonth = (strlen($expmonth) === 1) ? '0' . $expmonth : $expmonth;
353ffa53	384	$expyear = substr((string) $params['year'], 2, 2);
6a488035 TO	385	$this->_setParam('exp_date', $expmonth . $expyear);
	386
	387	if (isset($params['credit_card_start_date']) && (strlen($params['credit_card_start_date']['M']) !== 0) &&
	388	(strlen($params['credit_card_start_date']['Y']) !== 0)
	389	) {
2aa397bc	390	$startmonth = (string) $params['credit_card_start_date']['M'];
6a488035	391	$startmonth = (strlen($startmonth) === 1) ? '0' . $startmonth : $startmonth;
353ffa53	392	$startyear = substr((string) $params['credit_card_start_date']['Y'], 2, 2);
6a488035 TO	393	$this->_setParam('start_date', $startmonth . $startyear);
	394	}
	395
	396	// Create timestamp
	397	$timestamp = strftime("%Y%m%d%H%M%S");
	398	$this->_setParam('timestamp', $timestamp);
	399
	400	return TRUE;
	401	}
	402
6a488035	403	/**
fe482240	404	* Get the value of a field if set.
6a488035	405	*
6a0b768e TO	406	* @param string $field
6a0b768e TO	407	* The field.
6a488035	408	*
72b3a70c CW	409	* @return mixed
72b3a70c CW	410	* value of the field, or empty string if the field is
16b10e64	411	* not set
6a488035	412	*/
00be9182	413	public function _getParam($field) {
6a488035 TO	414	if (isset($this->_params[$field])) {
	415	return $this->_params[$field];
	416	}
	417	else {
	418	return '';
	419	}
	420	}
	421
	422	/**
	423	* Set a field to the specified value. Value must be a scalar (int,
	424	* float, string, or boolean)
	425	*
	426	* @param string $field
	427	* @param mixed $value
	428	*
a6c01b45 CW	429	* @return bool
a6c01b45 CW	430	* false if value is not a scalar, true if successful
6a488035	431	*/
00be9182	432	public function _setParam($field, $value) {
6a488035 TO	433	if (!is_scalar($value)) {
	434	return FALSE;
	435	}
	436	else {
	437	$this->_params[$field] = $value;
	438	}
	439	}
	440
6c786a9b EM	441	/**
	442	* @param null $errorCode
	443	* @param null $errorMessage
	444	*
	445	* @return object
	446	*/
00be9182	447	public function &error($errorCode = NULL, $errorMessage = NULL) {
6a488035 TO	448	$e = CRM_Core_Error::singleton();
	449
	450	if ($errorCode) {
	451	if ($errorCode == '101' \|\| $errorCode == '102') {
	452	$display_error = ts('Card declined by bank. Please try with a different card.');
	453	}
	454	elseif ($errorCode == '103') {
	455	$display_error = ts('Card reported lost or stolen. This incident will be reported.');
	456	}
	457	elseif ($errorCode == '501') {
	458	$display_error = ts("It appears that this transaction is a duplicate. Have you already submitted the form once? If so there may have been a connection problem. Check your email for a receipt for this transaction. If you do not receive a receipt within 2 hours you can try your transaction again. If you continue to have problems please contact the site administrator.");
	459	}
	460	elseif ($errorCode == '509') {
	461	$display_error = $errorMessage;
	462	}
	463	else {
	464	$display_error = ts('We were unable to process your payment at this time. Please try again later.');
	465	}
	466	$e->push($errorCode, 0, NULL, $display_error);
	467	}
	468	else {
	469	$e->push(9001, 0, NULL, ts('We were unable to process your payment at this time. Please try again later.'));
	470	}
	471	return $e;
	472	}
	473
	474	/**
fe482240	475	* This function checks to see if we have the right config values.
6a488035	476	*
a6c01b45 CW	477	* @return string
a6c01b45 CW	478	* the error message if any
6a488035	479	*/
00be9182	480	public function checkConfig() {
6a488035 TO	481	$error = array();
	482	if (empty($this->_paymentProcessor['user_name'])) {
	483	$error[] = ts('Merchant ID is not set for this payment processor');
	484	}
	485
	486	if (empty($this->_paymentProcessor['password'])) {
	487	$error[] = ts('Secret is not set for this payment processor');
	488	}
	489
	490	if (!empty($error)) {
	491	return implode('<p>', $error);
	492	}
	493	else {
	494	return NULL;
	495	}
	496	}
96025800	497
6a488035	498	}