/**
* Render and return a valid LDAP filter expression of the given filter
*
* @param FilterExpression $filter
*
* @return string
*/
protected function renderFilterExpression(FilterExpression $filter)
{
$column = $filter->getColumn();
$sign = $filter->getSign();
$expression = $filter->getExpression();
$format = '%1$s%2$s%3$s';
if ($expression === null || $expression === true) {
$expression = '*';
} elseif (is_array($expression)) {
$seqFormat = '|(%s)';
if ($sign === '!=') {
$seqFormat = '!(' . $seqFormat . ')';
$sign = '=';
}
$seqParts = array();
foreach ($expression as $expressionValue) {
$seqParts[] = sprintf($format, LdapUtils::quoteForSearch($column), $sign, LdapUtils::quoteForSearch($expressionValue, true));
}
return sprintf($seqFormat, implode(')(', $seqParts));
}
if ($sign === '!=') {
$format = '!(%1$s=%3$s)';
}
return sprintf($format, LdapUtils::quoteForSearch($column), $sign, LdapUtils::quoteForSearch($expression, true));
}
/**
* Return the LDAP filter to be applied on this query
*
* @return string
*
* @throws LdapException In case the objectClass filter does not exist
*/
protected function renderFilter()
{
if (!isset($this->filters['objectClass'])) {
throw new LdapException('Object class is mandatory');
}
$parts = array();
foreach ($this->filters as $key => $value) {
if ($value instanceof Expression) {
$parts[] = (string) $value;
} else {
$parts[] = sprintf('%s=%s', LdapUtils::quoteForSearch($key), LdapUtils::quoteForSearch($value, true));
}
}
if (count($parts) > 1) {
return '(&(' . implode(')(', $parts) . '))';
} else {
return '(' . $parts[0] . ')';
}
}
