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<?php
declare(strict_types=1);
namespace PhpMyAdmin;
use function array_merge;
use function is_array;
use function is_string;
use function preg_match;
use function sort;
use function strlen;
use function usort;
/**
* handles database lists
*
* <code>
* $ListDatabase = new ListDatabase();
* </code>
*
* @todo this object should be attached to the PMA_Server object
*/
class ListDatabase extends ListAbstract
{
public function __construct()
{
global $dbi;
parent::__construct();
$checkUserPrivileges = new CheckUserPrivileges($dbi);
$checkUserPrivileges->getPrivileges();
$this->build();
}
/**
* checks if the configuration wants to hide some databases
*/
protected function checkHideDatabase(): void
{
if (empty($GLOBALS['cfg']['Server']['hide_db'])) {
return;
}
foreach ($this->getArrayCopy() as $key => $db) {
if (! preg_match('/' . $GLOBALS['cfg']['Server']['hide_db'] . '/', $db)) {
continue;
}
$this->offsetUnset($key);
}
}
/**
* retrieves database list from server
*
* @param string $like_db_name usually a db_name containing wildcards
*
* @return array
*/
protected function retrieve($like_db_name = null)
{
global $dbi;
$database_list = [];
$command = '';
if (! $GLOBALS['cfg']['Server']['DisableIS']) {
$command .= 'SELECT `SCHEMA_NAME` FROM `INFORMATION_SCHEMA`.`SCHEMATA`';
if ($like_db_name !== null) {
$command .= " WHERE `SCHEMA_NAME` LIKE '" . $like_db_name . "'";
}
} else {
if ($GLOBALS['dbs_to_test'] === false || $like_db_name !== null) {
$command .= 'SHOW DATABASES';
if ($like_db_name !== null) {
$command .= " LIKE '" . $like_db_name . "'";
}
} else {
foreach ($GLOBALS['dbs_to_test'] as $db) {
$database_list = array_merge(
$database_list,
$this->retrieve($db)
);
}
}
}
if ($command) {
$database_list = $dbi->fetchResult($command, null, null);
}
if ($GLOBALS['cfg']['NaturalOrder']) {
usort($database_list, 'strnatcasecmp');
} else {
// need to sort anyway, otherwise information_schema
// goes at the top
sort($database_list);
}
return $database_list;
}
/**
* builds up the list
*/
public function build(): void
{
if (! $this->checkOnlyDatabase()) {
$items = $this->retrieve();
$this->exchangeArray($items);
}
$this->checkHideDatabase();
}
/**
* checks the only_db configuration
*/
protected function checkOnlyDatabase(): bool
{
if (is_string($GLOBALS['cfg']['Server']['only_db']) && strlen($GLOBALS['cfg']['Server']['only_db']) > 0) {
$GLOBALS['cfg']['Server']['only_db'] = [
$GLOBALS['cfg']['Server']['only_db'],
];
}
if (! is_array($GLOBALS['cfg']['Server']['only_db'])) {
return false;
}
$items = [];
foreach ($GLOBALS['cfg']['Server']['only_db'] as $each_only_db) {
// check if the db name contains wildcard,
// thus containing not escaped _ or %
if (! preg_match('/(^|[^\\\\])(_|%)/', $each_only_db)) {
// ... not contains wildcard
$items[] = Util::unescapeMysqlWildcards($each_only_db);
continue;
}
$items = array_merge($items, $this->retrieve($each_only_db));
}
$this->exchangeArray($items);
return true;
}
/**
* returns default item
*
* @return string default item
*/
public function getDefault()
{
if (strlen($GLOBALS['db']) > 0) {
return $GLOBALS['db'];
}
return $this->getEmpty();
}
}
|
