public function validateApplicationTransactions(PhabricatorApplicationTransactionEditor $editor, $type, array $xactions)
 {
     $errors = parent::validateApplicationTransactions($editor, $type, $xactions);
     $ok = PassphraseCredentialControl::validateTransactions($this->getViewer(), $xactions);
     if (!$ok) {
         foreach ($xactions as $xaction) {
             $errors[] = new PhabricatorApplicationTransactionValidationError($type, pht('Invalid'), pht('The selected credential does not exist, or you do not have ' . 'permission to use it.'), $xaction);
             $this->setFieldError(pht('Invalid'));
         }
     }
     return $errors;
 }
 protected function validateTransaction(PhabricatorLiskDAO $object, $type, array $xactions)
 {
     $errors = parent::validateTransaction($object, $type, $xactions);
     switch ($type) {
         case PhabricatorRepositoryTransaction::TYPE_AUTOCLOSE:
         case PhabricatorRepositoryTransaction::TYPE_TRACK_ONLY:
             foreach ($xactions as $xaction) {
                 foreach ($xaction->getNewValue() as $pattern) {
                     // Check for invalid regular expressions.
                     $regexp = PhabricatorRepository::extractBranchRegexp($pattern);
                     if ($regexp !== null) {
                         $ok = @preg_match($regexp, '');
                         if ($ok === false) {
                             $error = new PhabricatorApplicationTransactionValidationError($type, pht('Invalid'), pht('Expression "%s" is not a valid regular expression. Note ' . 'that you must include delimiters.', $regexp), $xaction);
                             $errors[] = $error;
                             continue;
                         }
                     }
                     // Check for formatting mistakes like `regex(...)` instead of
                     // `regexp(...)`.
                     $matches = null;
                     if (preg_match('/^([^(]+)\\(.*\\)\\z/', $pattern, $matches)) {
                         switch ($matches[1]) {
                             case 'regexp':
                                 break;
                             default:
                                 $error = new PhabricatorApplicationTransactionValidationError($type, pht('Invalid'), pht('Matching function "%s(...)" is not recognized. Valid ' . 'functions are: regexp(...).', $matches[1]), $xaction);
                                 $errors[] = $error;
                                 break;
                         }
                     }
                 }
             }
             break;
         case PhabricatorRepositoryTransaction::TYPE_REMOTE_URI:
             foreach ($xactions as $xaction) {
                 $new_uri = $xaction->getNewValue();
                 try {
                     PhabricatorRepository::assertValidRemoteURI($new_uri);
                 } catch (Exception $ex) {
                     $errors[] = new PhabricatorApplicationTransactionValidationError($type, pht('Invalid'), $ex->getMessage(), $xaction);
                 }
             }
             break;
         case PhabricatorRepositoryTransaction::TYPE_CREDENTIAL:
             $ok = PassphraseCredentialControl::validateTransactions($this->getActor(), $xactions);
             if (!$ok) {
                 foreach ($xactions as $xaction) {
                     $errors[] = new PhabricatorApplicationTransactionValidationError($type, pht('Invalid'), pht('The selected credential does not exist, or you do not have ' . 'permission to use it.'), $xaction);
                 }
             }
             break;
         case PhabricatorRepositoryTransaction::TYPE_AUTOMATION_BLUEPRINTS:
             foreach ($xactions as $xaction) {
                 $old = nonempty($xaction->getOldValue(), array());
                 $new = nonempty($xaction->getNewValue(), array());
                 $add = array_diff($new, $old);
                 $invalid = PhabricatorObjectQuery::loadInvalidPHIDsForViewer($this->getActor(), $add);
                 if ($invalid) {
                     $errors[] = new PhabricatorApplicationTransactionValidationError($type, pht('Invalid'), pht('Some of the selected automation blueprints are invalid ' . 'or restricted: %s.', implode(', ', $invalid)), $xaction);
                 }
             }
             break;
         case PhabricatorRepositoryTransaction::TYPE_SLUG:
             foreach ($xactions as $xaction) {
                 $old = $xaction->getOldValue();
                 $new = $xaction->getNewValue();
                 if (!strlen($new)) {
                     continue;
                 }
                 if ($new === $old) {
                     continue;
                 }
                 try {
                     PhabricatorRepository::asssertValidRepositorySlug($new);
                 } catch (Exception $ex) {
                     $errors[] = new PhabricatorApplicationTransactionValidationError($type, pht('Invalid'), $ex->getMessage(), $xaction);
                     continue;
                 }
                 $other = id(new PhabricatorRepositoryQuery())->setViewer(PhabricatorUser::getOmnipotentUser())->withSlugs(array($new))->executeOne();
                 if ($other && $other->getID() !== $object->getID()) {
                     $errors[] = new PhabricatorApplicationTransactionValidationError($type, pht('Duplicate'), pht('The selected repository short name is already in use by ' . 'another repository. Choose a unique short name.'), $xaction);
                     continue;
                 }
             }
             break;
     }
     return $errors;
 }
 protected function validateTransaction(PhabricatorLiskDAO $object, $type, array $xactions)
 {
     $errors = parent::validateTransaction($object, $type, $xactions);
     switch ($type) {
         case PhabricatorRepositoryTransaction::TYPE_AUTOCLOSE:
         case PhabricatorRepositoryTransaction::TYPE_TRACK_ONLY:
             foreach ($xactions as $xaction) {
                 foreach ($xaction->getNewValue() as $pattern) {
                     // Check for invalid regular expressions.
                     $regexp = PhabricatorRepository::extractBranchRegexp($pattern);
                     if ($regexp !== null) {
                         $ok = @preg_match($regexp, '');
                         if ($ok === false) {
                             $error = new PhabricatorApplicationTransactionValidationError($type, pht('Invalid'), pht('Expression "%s" is not a valid regular expression. Note ' . 'that you must include delimiters.', $regexp), $xaction);
                             $errors[] = $error;
                             continue;
                         }
                     }
                     // Check for formatting mistakes like `regex(...)` instead of
                     // `regexp(...)`.
                     $matches = null;
                     if (preg_match('/^([^(]+)\\(.*\\)\\z/', $pattern, $matches)) {
                         switch ($matches[1]) {
                             case 'regexp':
                                 break;
                             default:
                                 $error = new PhabricatorApplicationTransactionValidationError($type, pht('Invalid'), pht('Matching function "%s(...)" is not recognized. Valid ' . 'functions are: regexp(...).', $matches[1]), $xaction);
                                 $errors[] = $error;
                                 break;
                         }
                     }
                 }
             }
             break;
         case PhabricatorRepositoryTransaction::TYPE_REMOTE_URI:
             foreach ($xactions as $xaction) {
                 $new_uri = $xaction->getNewValue();
                 try {
                     PhabricatorRepository::assertValidRemoteURI($new_uri);
                 } catch (Exception $ex) {
                     $errors[] = new PhabricatorApplicationTransactionValidationError($type, pht('Invalid'), $ex->getMessage(), $xaction);
                 }
             }
             break;
         case PhabricatorRepositoryTransaction::TYPE_CREDENTIAL:
             $ok = PassphraseCredentialControl::validateTransactions($this->getActor(), $xactions);
             if (!$ok) {
                 foreach ($xactions as $xaction) {
                     $errors[] = new PhabricatorApplicationTransactionValidationError($type, pht('Invalid'), pht('The selected credential does not exist, or you do not have ' . 'permission to use it.'), $xaction);
                 }
             }
             break;
     }
     return $errors;
 }