CRM/Core/Payment/PayPalProIPN.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | Copyright CiviCRM LLC. All rights reserved.                        |
   5  |                                                                    |
   6  | This work is published under the GNU AGPLv3 license with some      |
   7  | permitted exceptions and without any warranty. For full license    |
   8  | and copyright information, see https://civicrm.org/licensing       |
   9  +--------------------------------------------------------------------+
  10  */
  11
  12 /**
  13  *
  14  * @package CRM
  15  * @copyright CiviCRM LLC https://civicrm.org/licensing
  16  */
  17 class CRM_Core_Payment_PayPalProIPN extends CRM_Core_Payment_BaseIPN {
  18
  19   public static $_paymentProcessor = NULL;
  20
  21   /**
  22    * Input parameters from payment processor. Store these so that
  23    * the code does not need to keep retrieving from the http request
  24    * @var array
  25    */
  26   protected $_inputParameters = [];
  27
  28   /**
  29    * Store for the variables from the invoice string.
  30    * @var array
  31    */
  32   protected $_invoiceData = [];
  33
  34   /**
  35    * Is this a payment express transaction.
  36    * @var bool
  37    */
  38   protected $_isPaymentExpress = FALSE;
  39
  40   /**
  41    * Component.
  42    *
  43    * Are we dealing with an event an 'anything else' (contribute).
  44    *
  45    * @var string
  46    */
  47   protected $_component = 'contribute';
  48
  49   /**
  50    * Constructor function.
  51    *
  52    * @param array $inputData
  53    *   Contents of HTTP REQUEST.
  54    *
  55    * @throws CRM_Core_Exception
  56    */
  57   public function __construct($inputData) {
  58     $this->setInputParameters($inputData);
  59     $this->setInvoiceData();
  60     parent::__construct();
  61   }
  62
  63   /**
  64    * get the values from the rp_invoice_id string.
  65    *
  66    * @param string $name
  67    *   E.g. i, values are stored in the string with letter codes.
  68    * @param bool $abort
  69    *   Throw exception if not found
  70    *
  71    * @throws CRM_Core_Exception
  72    * @return mixed
  73    */
  74   public function getValue($name, $abort = TRUE) {
  75     if ($abort && empty($this->_invoiceData[$name])) {
  76       throw new CRM_Core_Exception("Failure: Missing Parameter $name");
  77     }
  78     else {
  79       return $this->_invoiceData[$name] ?? NULL;
  80     }
  81   }
  82
  83   /**
  84    * Set $this->_invoiceData from the input array
  85    */
  86   public function setInvoiceData() {
  87     if (empty($this->_inputParameters['rp_invoice_id'])) {
  88       $this->_isPaymentExpress = TRUE;
  89       return;
  90     }
  91     $rpInvoiceArray = explode('&', $this->_inputParameters['rp_invoice_id']);
  92     // for clarify let's also store without the single letter unreadable
  93     //@todo after more refactoring we might ditch storing the one letter stuff
  94     $mapping = [
  95       'i' => 'invoice_id',
  96       'm' => 'component',
  97       'c' => 'contact_id',
  98       'b' => 'contribution_id',
  99       'r' => 'contribution_recur_id',
 100       'p' => 'participant_id',
 101       'e' => 'event_id',
 102     ];
 103     foreach ($rpInvoiceArray as $rpInvoiceValue) {
 104       $rpValueArray = explode('=', $rpInvoiceValue);
 105       $this->_invoiceData[$rpValueArray[0]] = $rpValueArray[1];
 106       $this->_inputParameters[$mapping[$rpValueArray[0]]] = $rpValueArray[1];
 107       // p has been overloaded & could mean contribution page or participant id. Clearly we need an
 108       // alphabet with more letters.
 109       // the mode will always be resolved before the mystery p is reached
 110       if ($rpValueArray[1] == 'contribute') {
 111         $mapping['p'] = 'contribution_page_id';
 112       }
 113     }
 114     if (empty($this->_inputParameters['component'])) {
 115       $this->_isPaymentExpress = TRUE;
 116     }
 117   }
 118
 119   /**
 120    * @param string $name
 121    *   Of variable to return.
 122    * @param string $type
 123    *   Data type.
 124    *   - String
 125    *   - Integer
 126    * @param string $location
 127    *   Deprecated.
 128    * @param bool $abort
 129    *   Abort if empty.
 130    *
 131    * @throws CRM_Core_Exception
 132    * @return mixed
 133    */
 134   public function retrieve($name, $type, $location = 'POST', $abort = TRUE) {
 135     $value = CRM_Utils_Type::validate(
 136       CRM_Utils_Array::value($name, $this->_inputParameters),
 137       $type,
 138       FALSE
 139     );
 140     if ($abort && $value === NULL) {
 141       throw new CRM_Core_Exception("Could not find an entry for $name in $location");
 142     }
 143     return $value;
 144   }
 145
 146   /**
 147    * Process recurring contributions.
 148    *
 149    * @param array $input
 150    * @param array $ids
 151    * @param array $objects
 152    * @param bool $first
 153    *
 154    * @throws \CRM_Core_Exception
 155    * @throws \CiviCRM_API3_Exception
 156    */
 157   public function recur($input, $ids, $objects, $first) {
 158     if (!isset($input['txnType'])) {
 159       Civi::log()->debug('PayPalProIPN: Could not find txn_type in input request.');
 160       echo 'Failure: Invalid parameters<p>';
 161       return;
 162     }
 163
 164     $recur = &$objects['contributionRecur'];
 165
 166     // make sure the invoice ids match
 167     // make sure the invoice is valid and matches what we have in
 168     // the contribution record
 169     if ($recur->invoice_id != $input['invoice']) {
 170       Civi::log()->debug('PayPalProIPN: Invoice values dont match between database and IPN request recur is ' . $recur->invoice_id . ' input is ' . $input['invoice']);
 171       echo 'Failure: Invoice values dont match between database and IPN request recur is ' . $recur->invoice_id . " input is " . $input['invoice'];
 172       return;
 173     }
 174
 175     $now = date('YmdHis');
 176
 177     $sendNotification = FALSE;
 178     $subscriptionPaymentStatus = NULL;
 179     //List of Transaction Type
 180     /*
 181     recurring_payment_profile_created          RP Profile Created
 182     recurring_payment           RP Successful Payment
 183     recurring_payment_failed                               RP Failed Payment
 184     recurring_payment_profile_cancel           RP Profile Cancelled
 185     recurring_payment_expired         RP Profile Expired
 186     recurring_payment_skipped        RP Profile Skipped
 187     recurring_payment_outstanding_payment      RP Successful Outstanding Payment
 188     recurring_payment_outstanding_payment_failed          RP Failed Outstanding Payment
 189     recurring_payment_suspended        RP Profile Suspended
 190     recurring_payment_suspended_due_to_max_failed_payment  RP Profile Suspended due to Max Failed Payment
 191      */
 192
 193     //set transaction type
 194     $txnType = $this->retrieve('txn_type', 'String');
 195     //Changes for paypal pro recurring payment
 196     $contributionStatuses = array_flip(CRM_Contribute_BAO_Contribution::buildOptions('contribution_status_id', 'validate'));
 197     switch ($txnType) {
 198       case 'recurring_payment_profile_created':
 199         if (in_array($recur->contribution_status_id, [
 200           $contributionStatuses['Pending'],
 201           $contributionStatuses['In Progress'],
 202         ])
 203           && !empty($recur->processor_id)
 204         ) {
 205           echo "already handled";
 206           return;
 207         }
 208         $recur->create_date = $now;
 209         $recur->contribution_status_id = $contributionStatuses['Pending'];
 210         $recur->processor_id = $this->retrieve('recurring_payment_id', 'String');
 211         $recur->trxn_id = $recur->processor_id;
 212         $subscriptionPaymentStatus = CRM_Core_Payment::RECURRING_PAYMENT_START;
 213         $sendNotification = TRUE;
 214         break;
 215
 216       case 'recurring_payment':
 217         if ($first) {
 218           $recur->start_date = $now;
 219         }
 220         else {
 221           if ($input['paymentStatus'] != 'Completed') {
 222             throw new CRM_Core_Exception("Ignore all IPN payments that are not completed");
 223           }
 224
 225           // In future moving to create pending & then complete, but this OK for now.
 226           // Also consider accepting 'Failed' like other processors.
 227           $input['contribution_status_id'] = $contributionStatuses['Completed'];
 228           $input['invoice_id'] = md5(uniqid(rand(), TRUE));
 229           $input['original_contribution_id'] = $ids['contribution'];
 230           $input['contribution_recur_id'] = $ids['contributionRecur'];
 231
 232           civicrm_api3('Contribution', 'repeattransaction', $input);
 233           return;
 234         }
 235
 236         //contribution installment is completed
 237         if ($this->retrieve('profile_status', 'String') == 'Expired') {
 238           if (!empty($recur->end_date)) {
 239             echo "already handled";
 240             return;
 241           }
 242           $recur->contribution_status_id = $contributionStatuses['Completed'];
 243           $recur->end_date = $now;
 244           $sendNotification = TRUE;
 245           $subscriptionPaymentStatus = CRM_Core_Payment::RECURRING_PAYMENT_END;
 246         }
 247
 248         // make sure the contribution status is not done
 249         // since order of ipn's is unknown
 250         if ($recur->contribution_status_id != $contributionStatuses['Completed']) {
 251           $recur->contribution_status_id = $contributionStatuses['In Progress'];
 252         }
 253         break;
 254     }
 255
 256     $recur->save();
 257
 258     if ($sendNotification) {
 259       $autoRenewMembership = FALSE;
 260       if ($recur->id &&
 261         isset($ids['membership']) && $ids['membership']
 262       ) {
 263         $autoRenewMembership = TRUE;
 264       }
 265       //send recurring Notification email for user
 266       CRM_Contribute_BAO_ContributionPage::recurringNotify($subscriptionPaymentStatus,
 267         $ids['contact'],
 268         $ids['contributionPage'],
 269         $recur,
 270         $autoRenewMembership
 271       );
 272     }
 273
 274     if ($txnType != 'recurring_payment') {
 275       return;
 276     }
 277
 278     if (!$first) {
 279       //check if this contribution transaction is already processed
 280       //if not create a contribution and then get it processed
 281       $contribution = new CRM_Contribute_BAO_Contribution();
 282       $contribution->trxn_id = $input['trxn_id'];
 283       if ($contribution->trxn_id && $contribution->find()) {
 284         Civi::log()->debug('PayPalProIPN: Returning since contribution has already been handled.');
 285         echo "Success: Contribution has already been handled<p>";
 286         return;
 287       }
 288
 289       $contribution->contact_id = $recur->contact_id;
 290       $contribution->financial_type_id = $objects['contributionType']->id;
 291       $contribution->contribution_page_id = $ids['contributionPage'];
 292       $contribution->contribution_recur_id = $ids['contributionRecur'];
 293       $contribution->currency = $objects['contribution']->currency;
 294       $contribution->payment_instrument_id = $objects['contribution']->payment_instrument_id;
 295       $contribution->amount_level = $objects['contribution']->amount_level;
 296       $contribution->campaign_id = $objects['contribution']->campaign_id;
 297       $objects['contribution'] = &$contribution;
 298       $contribution->invoice_id = md5(uniqid(rand(), TRUE));
 299     }
 300     // CRM-13737 - am not aware of any reason why payment_date would not be set - this if is a belt & braces
 301     $objects['contribution']->receive_date = !empty($input['payment_date']) ? date('YmdHis', strtotime($input['payment_date'])) : $now;
 302
 303     $this->single($input, $ids, $objects, TRUE, $first);
 304   }
 305
 306   /**
 307    * @param array $input
 308    * @param array $ids
 309    * @param array $objects
 310    * @param bool $recur
 311    * @param bool $first
 312    *
 313    * @return void
 314    */
 315   public function single($input, $ids, $objects, $recur = FALSE, $first = FALSE) {
 316     $contribution = &$objects['contribution'];
 317
 318     // make sure the invoice is valid and matches what we have in the contribution record
 319     if ((!$recur) || ($recur && $first)) {
 320       if ($contribution->invoice_id != $input['invoice']) {
 321         Civi::log()->debug('PayPalProIPN: Invoice values dont match between database and IPN request.');
 322         echo "Failure: Invoice values dont match between database and IPN request<p>contribution is" . $contribution->invoice_id . " and input is " . $input['invoice'];
 323         return;
 324       }
 325     }
 326     else {
 327       $contribution->invoice_id = md5(uniqid(rand(), TRUE));
 328     }
 329
 330     if (!$recur) {
 331       if ($contribution->total_amount != $input['amount']) {
 332         Civi::log()->debug('PayPalProIPN: Amount values dont match between database and IPN request.');
 333         echo "Failure: Amount values dont match between database and IPN request<p>";
 334         return;
 335       }
 336     }
 337     else {
 338       $contribution->total_amount = $input['amount'];
 339     }
 340
 341     $status = $input['paymentStatus'];
 342     if ($status === 'Denied' || $status === 'Failed' || $status === 'Voided') {
 343       $this->failed($objects);
 344       return;
 345     }
 346     if ($status === 'Pending') {
 347       Civi::log()->debug('Returning since contribution status is Pending');
 348       return;
 349     }
 350     elseif ($status === 'Refunded' || $status === 'Reversed') {
 351       $this->cancelled($objects);
 352       return;
 353     }
 354     elseif ($status !== 'Completed') {
 355       Civi::log()->debug('Returning since contribution status is not handled');
 356       return;
 357     }
 358
 359     // check if contribution is already completed, if so we ignore this ipn
 360     $completedStatusId = CRM_Core_PseudoConstant::getKey('CRM_Contribute_BAO_Contribution', 'contribution_status_id', 'Completed');
 361     if ($contribution->contribution_status_id == $completedStatusId) {
 362       Civi::log()->debug('PayPalProIPN: Returning since contribution has already been handled.');
 363       echo 'Success: Contribution has already been handled<p>';
 364       return;
 365     }
 366
 367     CRM_Contribute_BAO_Contribution::completeOrder($input, [
 368       'related_contact' => $ids['related_contact'] ?? NULL,
 369       'participant' => !empty($objects['participant']) ? $objects['participant']->id : NULL,
 370       'contributionRecur' => !empty($objects['contributionRecur']) ? $objects['contributionRecur']->id : NULL,
 371     ], $objects);
 372   }
 373
 374   /**
 375    * Gets PaymentProcessorID for PayPal
 376    *
 377    * @return int
 378    */
 379   public function getPayPalPaymentProcessorID() {
 380     // This is an unreliable method as there could be more than one instance.
 381     // Recommended approach is to use the civicrm/payment/ipn/xx url where xx is the payment
 382     // processor id & the handleNotification function (which should call the completetransaction api & by-pass this
 383     // entirely). The only thing the IPN class should really do is extract data from the request, validate it
 384     // & call completetransaction or call fail? (which may not exist yet).
 385
 386     Civi::log()->warning('Unreliable method used to get payment_processor_id for PayPal Pro IPN - this will cause problems if you have more than one instance');
 387
 388     $paymentProcessorTypeID = CRM_Core_DAO::getFieldValue('CRM_Financial_DAO_PaymentProcessorType',
 389       'PayPal', 'id', 'name'
 390     );
 391     return (int) civicrm_api3('PaymentProcessor', 'getvalue', [
 392       'is_test' => 0,
 393       'options' => ['limit' => 1],
 394       'payment_processor_type_id' => $paymentProcessorTypeID,
 395       'return' => 'id',
 396     ]);
 397
 398   }
 399
 400   /**
 401    * This is the main function to call. It should be sufficient to instantiate the class
 402    * (with the input parameters) & call this & all will be done
 403    *
 404    * @todo the references to POST throughout this class need to be removed
 405    * @return void
 406    */
 407   public function main() {
 408     CRM_Core_Error::debug_var('GET', $_GET, TRUE, TRUE);
 409     CRM_Core_Error::debug_var('POST', $_POST, TRUE, TRUE);
 410     try {
 411       if ($this->_isPaymentExpress) {
 412         $this->handlePaymentExpress();
 413         return;
 414       }
 415       $objects = $ids = $input = [];
 416       $this->_component = $input['component'] = self::getValue('m');
 417       $input['invoice'] = self::getValue('i', TRUE);
 418       // get the contribution and contact ids from the GET params
 419       $ids['contact'] = self::getValue('c', TRUE);
 420       $ids['contribution'] = self::getValue('b', TRUE);
 421
 422       $this->getInput($input);
 423
 424       if ($this->_component == 'event') {
 425         $ids['event'] = self::getValue('e', TRUE);
 426         $ids['participant'] = self::getValue('p', TRUE);
 427         $ids['contributionRecur'] = self::getValue('r', FALSE);
 428       }
 429       else {
 430         // get the optional ids
 431         //@ how can this not be broken retrieving from GET as we are dealing with a POST request?
 432         // copy & paste? Note the retrieve function now uses data from _REQUEST so this will be included
 433         $ids['membership'] = self::retrieve('membershipID', 'Integer', 'GET', FALSE);
 434         $ids['contributionRecur'] = self::getValue('r', FALSE);
 435         $ids['contributionPage'] = self::getValue('p', FALSE);
 436         $ids['related_contact'] = self::retrieve('relatedContactID', 'Integer', 'GET', FALSE);
 437         $ids['onbehalf_dupe_alert'] = self::retrieve('onBehalfDupeAlert', 'Integer', 'GET', FALSE);
 438       }
 439
 440       if (!$ids['membership'] && $ids['contributionRecur']) {
 441         $sql = "
 442     SELECT m.id
 443       FROM civicrm_membership m
 444 INNER JOIN civicrm_membership_payment mp ON m.id = mp.membership_id AND mp.contribution_id = %1
 445      WHERE m.contribution_recur_id = %2
 446      LIMIT 1";
 447         $sqlParams = [
 448           1 => [$ids['contribution'], 'Integer'],
 449           2 => [$ids['contributionRecur'], 'Integer'],
 450         ];
 451         if ($membershipId = CRM_Core_DAO::singleValueQuery($sql, $sqlParams)) {
 452           $ids['membership'] = $membershipId;
 453         }
 454       }
 455
 456       $paymentProcessorID = CRM_Utils_Array::value('processor_id', $this->_inputParameters);
 457       if (!$paymentProcessorID) {
 458         $paymentProcessorID = self::getPayPalPaymentProcessorID();
 459       }
 460
 461       if (!$this->validateData($input, $ids, $objects, TRUE, $paymentProcessorID)) {
 462         return;
 463       }
 464
 465       $input['payment_processor_id'] = $paymentProcessorID;
 466
 467       self::$_paymentProcessor = &$objects['paymentProcessor'];
 468       //?? how on earth would we not have component be one of these?
 469       // they are the only valid settings & this IPN file can't even be called without one of them
 470       // grepping for this class doesn't find other paths to call this class
 471       if ($this->_component == 'contribute' || $this->_component == 'event') {
 472         if ($ids['contributionRecur']) {
 473           // check if first contribution is completed, else complete first contribution
 474           $first = TRUE;
 475           $completedStatusId = CRM_Core_PseudoConstant::getKey('CRM_Contribute_BAO_Contribution', 'contribution_status_id', 'Completed');
 476           if ($objects['contribution']->contribution_status_id == $completedStatusId) {
 477             $first = FALSE;
 478           }
 479           $this->recur($input, $ids, $objects, $first);
 480           return;
 481         }
 482       }
 483       $this->single($input, $ids, $objects, FALSE, FALSE);
 484     }
 485     catch (CRM_Core_Exception $e) {
 486       Civi::log()->debug($e->getMessage());
 487       echo 'Invalid or missing data';
 488     }
 489   }
 490
 491   /**
 492    * @param array $input
 493    *
 494    * @return void
 495    * @throws CRM_Core_Exception
 496    */
 497   public function getInput(&$input) {
 498     $billingID = CRM_Core_BAO_LocationType::getBilling();
 499
 500     $input['txnType'] = self::retrieve('txn_type', 'String', 'POST', FALSE);
 501     $input['paymentStatus'] = self::retrieve('payment_status', 'String', 'POST', FALSE);
 502
 503     $input['amount'] = self::retrieve('mc_gross', 'Money', 'POST', FALSE);
 504     $input['reasonCode'] = self::retrieve('ReasonCode', 'String', 'POST', FALSE);
 505
 506     $lookup = [
 507       "first_name" => 'first_name',
 508       "last_name" => 'last_name',
 509       "street_address-{$billingID}" => 'address_street',
 510       "city-{$billingID}" => 'address_city',
 511       "state-{$billingID}" => 'address_state',
 512       "postal_code-{$billingID}" => 'address_zip',
 513       "country-{$billingID}" => 'address_country_code',
 514     ];
 515     foreach ($lookup as $name => $paypalName) {
 516       $value = self::retrieve($paypalName, 'String', 'POST', FALSE);
 517       $input[$name] = $value ? $value : NULL;
 518     }
 519
 520     $input['is_test'] = self::retrieve('test_ipn', 'Integer', 'POST', FALSE);
 521     $input['fee_amount'] = self::retrieve('mc_fee', 'Money', 'POST', FALSE);
 522     $input['net_amount'] = self::retrieve('settle_amount', 'Money', 'POST', FALSE);
 523     $input['trxn_id'] = self::retrieve('txn_id', 'String', 'POST', FALSE);
 524     $input['payment_date'] = $input['receive_date'] = self::retrieve('payment_date', 'String', 'POST', FALSE);
 525     $input['total_amount'] = $input['amount'];
 526   }
 527
 528   /**
 529    * Handle payment express IPNs.
 530    *
 531    * For one off IPNS no actual response is required
 532    * Recurring is more difficult as we have limited confirmation material
 533    * lets look up invoice id in recur_contribution & rely on the unique transaction id to ensure no
 534    * duplicated
 535    * this may not be acceptable to all sites - e.g. if they are shipping or delivering something in return
 536    * then the quasi security of the ids array might be required - although better to
 537    * http://stackoverflow.com/questions/4848227/validate-that-ipn-call-is-from-paypal
 538    * but let's assume knowledge on invoice id & schedule is enough for now esp for donations
 539    * only contribute is handled
 540    */
 541   public function handlePaymentExpress() {
 542     //@todo - loads of copy & paste / code duplication but as this not going into core need to try to
 543     // keep discreet
 544     // also note that a lot of the complexity above could be removed if we used
 545     // http://stackoverflow.com/questions/4848227/validate-that-ipn-call-is-from-paypal
 546     // as membership id etc can be derived by the load objects fn
 547     $objects = $ids = $input = [];
 548     $isFirst = FALSE;
 549     $input['invoice'] = self::getValue('i', FALSE);
 550     //Avoid return in case of unit test.
 551     if (empty($input['invoice']) && empty($this->_inputParameters['is_unit_test'])) {
 552       return;
 553     }
 554     $input['txnType'] = $this->retrieve('txn_type', 'String');
 555     $contributionRecur = civicrm_api3('contribution_recur', 'getsingle', [
 556       'return' => 'contact_id, id, payment_processor_id',
 557       'invoice_id' => $input['invoice'],
 558     ]);
 559
 560     if ($input['txnType'] !== 'recurring_payment' && $input['txnType'] !== 'recurring_payment_profile_created') {
 561       throw new CRM_Core_Exception('Paypal IPNS not handled other than recurring_payments');
 562     }
 563
 564     $this->getInput($input, $ids);
 565     if ($input['txnType'] === 'recurring_payment' && $this->transactionExists($input['trxn_id'])) {
 566       throw new CRM_Core_Exception('This transaction has already been processed');
 567     }
 568
 569     $ids['contact'] = $contributionRecur['contact_id'];
 570     $ids['contributionRecur'] = $contributionRecur['id'];
 571     $result = civicrm_api3('contribution', 'getsingle', ['invoice_id' => $input['invoice'], 'contribution_test' => '']);
 572
 573     $ids['contribution'] = $result['id'];
 574     //@todo hardcoding 'pending' for now
 575     $pendingStatusId = CRM_Core_PseudoConstant::getKey('CRM_Contribute_BAO_Contribution', 'contribution_status_id', 'Pending');
 576     if ($result['contribution_status_id'] == $pendingStatusId) {
 577       $isFirst = TRUE;
 578     }
 579     // arg api won't get this - fix it
 580     $ids['contributionPage'] = CRM_Core_DAO::singleValueQuery("SELECT contribution_page_id FROM civicrm_contribution WHERE invoice_id = %1", [
 581       1 => [
 582         $ids['contribution'],
 583         'Integer',
 584       ],
 585     ]);
 586     // only handle component at this stage - not terribly sure how a recurring event payment would arise
 587     // & suspec main function may be a victom of copy & paste
 588     // membership would be an easy add - but not relevant to my customer...
 589     $this->_component = $input['component'] = 'contribute';
 590     $input['trxn_date'] = date('Y-m-d H:i:s', strtotime(self::retrieve('time_created', 'String')));
 591     $paymentProcessorID = $contributionRecur['payment_processor_id'];
 592
 593     if (!$this->validateData($input, $ids, $objects, TRUE, $paymentProcessorID)) {
 594       throw new CRM_Core_Exception('Data did not validate');
 595     }
 596     $this->recur($input, $ids, $objects, $isFirst);
 597   }
 598
 599   /**
 600    * Function check if transaction already exists.
 601    * @param string $trxn_id
 602    * @return bool|void
 603    */
 604   public function transactionExists($trxn_id) {
 605     if (CRM_Core_DAO::singleValueQuery("SELECT count(*) FROM civicrm_contribution WHERE trxn_id = %1",
 606       [
 607         1 => [$trxn_id, 'String'],
 608       ])
 609     ) {
 610       return TRUE;
 611     }
 612   }
 613
 614 }