original_string: protected function isValidToken($value)
      {
          // Make sure the value has the right format
          $value   = $this->tracker->filterToken($value);
          $library = $this->tracker->getTokenLibrary();
          $format  = $library->getFormat();
          $reuse   = $library->hasReuse() ? $library->getReuse() : -1;
  
          if (strlen($value) !== strlen($format)) {
              $this->_messages = sprintf($this->translate->_('Not a valid token. The format for valid tokens is: %s.'), $format);
              return false;
          }
  
          $token = $this->tracker->getToken($value);
          if ($token && $token->exists && $token->getReceptionCode()->isSuccess()) {
              $currentDate = new \MUtil_Date();
  
              if ($completionTime = $token->getCompletionTime()) {
                  // Reuse means a user can use an old token to check for new surveys
                  if ($reuse >= 0) {
                      // Oldest date AFTER completiondate. Oldest date is today minus reuse time
                      if ($currentDate->diffDays($completionTime) <= $reuse) {
                          // It is completed and may still be used to look
                          // up other valid tokens.
                          return true;
                      }
                  }
                  $this->_messages = $this->translate->_('This token is no longer valid.');
                  return false;
              }
  
              $fromDate = $token->getValidFrom();
              if ((null === $fromDate) || $currentDate->isEarlier($fromDate)) {
                  // Current date is BEFORE from date
                  $this->_messages = $this->translate->_('This token cannot (yet) be used.');
                  return false;
              }
  
              if ($untilDate = $token->getValidUntil()) {
                  if ($currentDate->isLater($untilDate)) {
                      //Current date is AFTER until date
                      $this->_messages = $this->translate->_('This token is no longer valid.');
                      return false;
                  }
              }
  
              return true;
          } else {
              $this->_messages = $this->translate->_('Unknown token.');
              return false;
          }
      }
code: protected function isValidToken($value)
      {
          // Make sure the value has the right format
          $value   = $this->tracker->filterToken($value);
          $library = $this->tracker->getTokenLibrary();
          $format  = $library->getFormat();
          $reuse   = $library->hasReuse() ? $library->getReuse() : -1;
  
          if (strlen($value) !== strlen($format)) {
              $this->_messages = sprintf($this->translate->_('Not a valid token. The format for valid tokens is: %s.'), $format);
              return false;
          }
  
          $token = $this->tracker->getToken($value);
          if ($token && $token->exists && $token->getReceptionCode()->isSuccess()) {
              $currentDate = new \MUtil_Date();
  
              if ($completionTime = $token->getCompletionTime()) {
                  // Reuse means a user can use an old token to check for new surveys
                  if ($reuse >= 0) {
                      // Oldest date AFTER completiondate. Oldest date is today minus reuse time
                      if ($currentDate->diffDays($completionTime) <= $reuse) {
                          // It is completed and may still be used to look
                          // up other valid tokens.
                          return true;
                      }
                  }
                  $this->_messages = $this->translate->_('This token is no longer valid.');
                  return false;
              }
  
              $fromDate = $token->getValidFrom();
              if ((null === $fromDate) || $currentDate->isEarlier($fromDate)) {
                  // Current date is BEFORE from date
                  $this->_messages = $this->translate->_('This token cannot (yet) be used.');
                  return false;
              }
  
              if ($untilDate = $token->getValidUntil()) {
                  if ($currentDate->isLater($untilDate)) {
                      //Current date is AFTER until date
                      $this->_messages = $this->translate->_('This token is no longer valid.');
                      return false;
                  }
              }
  
              return true;
          } else {
              $this->_messages = $this->translate->_('Unknown token.');
              return false;
          }
      }
code_tokens: protected function isValidToken ( $ value ) { // Make sure the value has the right format $ value = $ this -> tracker -> filterToken ( $ value ) ; $ library = $ this -> tracker -> getTokenLibrary ( ) ; $ format = $ library -> getFormat ( ) ; $ reuse = $ library -> hasReuse ( ) ? $ library -> getReuse ( ) : - 1 ; if ( strlen ( $ value ) !== strlen ( $ format ) ) { $ this -> _messages = sprintf ( $ this -> translate -> _ ( 'Not a valid token. The format for valid tokens is: %s.' ) , $ format ) ; return false ; } $ token = $ this -> tracker -> getToken ( $ value ) ; if ( $ token && $ token -> exists && $ token -> getReceptionCode ( ) -> isSuccess ( ) ) { $ currentDate = new \ MUtil_Date ( ) ; if ( $ completionTime = $ token -> getCompletionTime ( ) ) { // Reuse means a user can use an old token to check for new surveys if ( $ reuse >= 0 ) { // Oldest date AFTER completiondate. Oldest date is today minus reuse time if ( $ currentDate -> diffDays ( $ completionTime ) <= $ reuse ) { // It is completed and may still be used to look // up other valid tokens. return true ; } } $ this -> _messages = $ this -> translate -> _ ( 'This token is no longer valid.' ) ; return false ; } $ fromDate = $ token -> getValidFrom ( ) ; if ( ( null === $ fromDate ) || $ currentDate -> isEarlier ( $ fromDate ) ) { // Current date is BEFORE from date $ this -> _messages = $ this -> translate -> _ ( 'This token cannot (yet) be used.' ) ; return false ; } if ( $ untilDate = $ token -> getValidUntil ( ) ) { if ( $ currentDate -> isLater ( $ untilDate ) ) { //Current date is AFTER until date $ this -> _messages = $ this -> translate -> _ ( 'This token is no longer valid.' ) ; return false ; } } return true ; } else { $ this -> _messages = $ this -> translate -> _ ( 'Unknown token.' ) ; return false ; } }
docstring: Seperate the incorrect tokens from the right tokens
  
  @param mixed $value
  @return boolean
docstring_tokens: Seperate the incorrect tokens from the right tokens