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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2016 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Db\Adapter\Platform;
abstract class AbstractPlatform implements PlatformInterface
{
/**
* @var string[]
*/
protected $quoteIdentifier = ['"', '"'];
/**
* @var string
*/
protected $quoteIdentifierTo = '\'';
/**
* @var bool
*/
protected $quoteIdentifiers = true;
/**
* @var string
*/
protected $quoteIdentifierFragmentPattern = '/([^0-9,a-z,A-Z$_:])/i';
/**
* {@inheritDoc}
*/
public function quoteIdentifierInFragment($identifier, array $safeWords = [])
{
if (! $this->quoteIdentifiers) {
return $identifier;
}
$safeWordsInt = ['*' => true, ' ' => true, '.' => true, 'as' => true];
foreach ($safeWords as $sWord) {
$safeWordsInt[strtolower($sWord)] = true;
}
$parts = preg_split(
$this->quoteIdentifierFragmentPattern,
$identifier,
-1,
PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY
);
$identifier = '';
foreach ($parts as $part) {
$identifier .= isset($safeWordsInt[strtolower($part)])
? $part
: $this->quoteIdentifier[0]
. str_replace($this->quoteIdentifier[0], $this->quoteIdentifierTo, $part)
. $this->quoteIdentifier[1];
}
return $identifier;
}
/**
* {@inheritDoc}
*/
public function quoteIdentifier($identifier)
{
if (! $this->quoteIdentifiers) {
return $identifier;
}
return $this->quoteIdentifier[0]
. str_replace($this->quoteIdentifier[0], $this->quoteIdentifierTo, $identifier)
. $this->quoteIdentifier[1];
}
/**
* {@inheritDoc}
*/
public function quoteIdentifierChain($identifierChain)
{
return '"' . implode('"."', (array) str_replace('"', '\\"', $identifierChain)) . '"';
}
/**
* {@inheritDoc}
*/
public function getQuoteIdentifierSymbol()
{
return $this->quoteIdentifier[0];
}
/**
* {@inheritDoc}
*/
public function getQuoteValueSymbol()
{
return '\'';
}
/**
* {@inheritDoc}
*/
public function quoteValue($value)
{
trigger_error(
'Attempting to quote a value in ' . get_class($this) .
' without extension/driver support can introduce security vulnerabilities in a production environment'
);
return '\'' . addcslashes((string) $value, "\x00\n\r\\'\"\x1a") . '\'';
}
/**
* {@inheritDoc}
*/
public function quoteTrustedValue($value)
{
return '\'' . addcslashes((string) $value, "\x00\n\r\\'\"\x1a") . '\'';
}
/**
* {@inheritDoc}
*/
public function quoteValueList($valueList)
{
return implode(', ', array_map([$this, 'quoteValue'], (array) $valueList));
}
/**
* {@inheritDoc}
*/
public function getIdentifierSeparator()
{
return '.';
}
}