File "Bookmark.php"
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<?php
/**
* Handles bookmarking SQL queries
*/
declare(strict_types=1);
namespace PhpMyAdmin;
use PhpMyAdmin\ConfigStorage\Features\BookmarkFeature;
use PhpMyAdmin\ConfigStorage\Relation;
use function count;
use function preg_match_all;
use function preg_replace;
use function str_replace;
use function strlen;
use const PREG_SET_ORDER;
/**
* Handles bookmarking SQL queries
*/
class Bookmark
{
/**
* ID of the bookmark
*
* @var int
*/
private $id;
/**
* Database the bookmark belongs to
*
* @var string
*/
private $database;
/**
* The user to whom the bookmark belongs, empty for public bookmarks
*
* @var string
*/
private $currentUser;
/**
* Label of the bookmark
*
* @var string
*/
private $label;
/**
* SQL query that is bookmarked
*
* @var string
*/
private $query;
/** @var DatabaseInterface */
private $dbi;
/** @var Relation */
private $relation;
public function __construct(DatabaseInterface $dbi, Relation $relation)
{
$this->dbi = $dbi;
$this->relation = $relation;
}
/**
* Returns the ID of the bookmark
*/
public function getId(): int
{
return (int) $this->id;
}
/**
* Returns the database of the bookmark
*/
public function getDatabase(): string
{
return $this->database;
}
/**
* Returns the user whom the bookmark belongs to
*/
public function getUser(): string
{
return $this->currentUser;
}
/**
* Returns the label of the bookmark
*/
public function getLabel(): string
{
return $this->label;
}
/**
* Returns the query
*/
public function getQuery(): string
{
return $this->query;
}
/**
* Adds a bookmark
*/
public function save(): bool
{
$bookmarkFeature = $this->relation->getRelationParameters()->bookmarkFeature;
if ($bookmarkFeature === null) {
return false;
}
$query = 'INSERT INTO ' . Util::backquote($bookmarkFeature->database)
. '.' . Util::backquote($bookmarkFeature->bookmark)
. ' (id, dbase, user, query, label) VALUES (NULL, '
. "'" . $this->dbi->escapeString($this->database) . "', "
. "'" . $this->dbi->escapeString($this->currentUser) . "', "
. "'" . $this->dbi->escapeString($this->query) . "', "
. "'" . $this->dbi->escapeString($this->label) . "')";
return (bool) $this->dbi->query($query, DatabaseInterface::CONNECT_CONTROL);
}
/**
* Deletes a bookmark
*/
public function delete(): bool
{
$bookmarkFeature = $this->relation->getRelationParameters()->bookmarkFeature;
if ($bookmarkFeature === null) {
return false;
}
$query = 'DELETE FROM ' . Util::backquote($bookmarkFeature->database)
. '.' . Util::backquote($bookmarkFeature->bookmark)
. ' WHERE id = ' . $this->id;
return (bool) $this->dbi->tryQuery($query, DatabaseInterface::CONNECT_CONTROL);
}
/**
* Returns the number of variables in a bookmark
*
* @return int number of variables
*/
public function getVariableCount(): int
{
$matches = [];
preg_match_all('/\[VARIABLE[0-9]*\]/', $this->query, $matches, PREG_SET_ORDER);
return count($matches);
}
/**
* Replace the placeholders in the bookmark query with variables
*
* @param array $variables array of variables
*
* @return string query with variables applied
*/
public function applyVariables(array $variables): string
{
// remove comments that encloses a variable placeholder
$query = (string) preg_replace('|/\*(.*\[VARIABLE[0-9]*\].*)\*/|imsU', '${1}', $this->query);
// replace variable placeholders with values
$number_of_variables = $this->getVariableCount();
for ($i = 1; $i <= $number_of_variables; $i++) {
$var = '';
if (! empty($variables[$i])) {
$var = $this->dbi->escapeString($variables[$i]);
}
$query = str_replace('[VARIABLE' . $i . ']', $var, $query);
// backward compatibility
if ($i != 1) {
continue;
}
$query = str_replace('[VARIABLE]', $var, $query);
}
return $query;
}
/**
* Creates a Bookmark object from the parameters
*
* @param array $bkm_fields the properties of the bookmark to add; here, $bkm_fields['bkm_sql_query'] is urlencoded
* @param bool $all_users whether to make the bookmark available for all users
*
* @return Bookmark|false
*/
public static function createBookmark(DatabaseInterface $dbi, array $bkm_fields, bool $all_users = false)
{
if (
! (isset($bkm_fields['bkm_sql_query'], $bkm_fields['bkm_label'])
&& strlen($bkm_fields['bkm_sql_query']) > 0
&& strlen($bkm_fields['bkm_label']) > 0)
) {
return false;
}
$bookmark = new Bookmark($dbi, new Relation($dbi));
$bookmark->database = $bkm_fields['bkm_database'];
$bookmark->label = $bkm_fields['bkm_label'];
$bookmark->query = $bkm_fields['bkm_sql_query'];
$bookmark->currentUser = $all_users ? '' : $bkm_fields['bkm_user'];
return $bookmark;
}
/**
* @param array $row Resource used to build the bookmark
*/
protected static function createFromRow(DatabaseInterface $dbi, $row): Bookmark
{
$bookmark = new Bookmark($dbi, new Relation($dbi));
$bookmark->id = $row['id'];
$bookmark->database = $row['dbase'];
$bookmark->currentUser = $row['user'];
$bookmark->label = $row['label'];
$bookmark->query = $row['query'];
return $bookmark;
}
/**
* Gets the list of bookmarks defined for the current database
*
* @param DatabaseInterface $dbi DatabaseInterface object
* @param string $user Current user
* @param string|false $db the current database name or false
*
* @return Bookmark[] the bookmarks list
*/
public static function getList(
BookmarkFeature $bookmarkFeature,
DatabaseInterface $dbi,
string $user,
$db = false
): array {
$query = 'SELECT * FROM ' . Util::backquote($bookmarkFeature->database)
. '.' . Util::backquote($bookmarkFeature->bookmark)
. " WHERE ( `user` = ''"
. " OR `user` = '" . $dbi->escapeString($user) . "' )";
if ($db !== false) {
$query .= " AND dbase = '" . $dbi->escapeString($db) . "'";
}
$query .= ' ORDER BY label ASC';
$result = $dbi->fetchResult(
$query,
null,
null,
DatabaseInterface::CONNECT_CONTROL
);
if (! empty($result)) {
$bookmarks = [];
foreach ($result as $row) {
$bookmarks[] = self::createFromRow($dbi, $row);
}
return $bookmarks;
}
return [];
}
/**
* Retrieve a specific bookmark
*
* @param DatabaseInterface $dbi DatabaseInterface object
* @param string $user Current user
* @param string $db the current database name
* @param int|string $id an identifier of the bookmark to get
* @param string $id_field which field to look up the identifier
* @param bool $action_bookmark_all true: get all bookmarks regardless
* of the owning user
* @param bool $exact_user_match whether to ignore bookmarks with no user
*
* @return Bookmark|null the bookmark
*/
public static function get(
DatabaseInterface $dbi,
string $user,
string $db,
$id,
string $id_field = 'id',
bool $action_bookmark_all = false,
bool $exact_user_match = false
): ?self {
$relation = new Relation($dbi);
$bookmarkFeature = $relation->getRelationParameters()->bookmarkFeature;
if ($bookmarkFeature === null) {
return null;
}
$query = 'SELECT * FROM ' . Util::backquote($bookmarkFeature->database)
. '.' . Util::backquote($bookmarkFeature->bookmark)
. " WHERE dbase = '" . $dbi->escapeString($db) . "'";
if (! $action_bookmark_all) {
$query .= " AND (user = '"
. $dbi->escapeString($user) . "'";
if (! $exact_user_match) {
$query .= " OR user = ''";
}
$query .= ')';
}
$query .= ' AND ' . Util::backquote($id_field)
. " = '" . $dbi->escapeString((string) $id) . "' LIMIT 1";
$result = $dbi->fetchSingleRow($query, DatabaseInterface::FETCH_ASSOC, DatabaseInterface::CONNECT_CONTROL);
if (! empty($result)) {
return self::createFromRow($dbi, $result);
}
return null;
}
}