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<?php /* vim: set expandtab sw=4 ts=4 sts=4: */ /** * Handles bookmarking SQL queries * * @package PhpMyAdmin */ declare(strict_types=1); namespace PhpMyAdmin; use PhpMyAdmin\DatabaseInterface; use PhpMyAdmin\Relation; use PhpMyAdmin\Util; /** * Handles bookmarking SQL queries * * @package PhpMyAdmin */ 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 $_user; /** * Label of the bookmark * * @var string */ private $_label; /** * SQL query that is bookmarked * * @var string */ private $_query; /** * @var DatabaseInterface */ private $dbi; /** * Current user * * @var string */ private $user; /** * Bookmark constructor. * * @param DatabaseInterface $dbi DatabaseInterface object * @param string $user Current user */ public function __construct(DatabaseInterface $dbi, string $user) { $this->dbi = $dbi; $this->user = $user; } /** * Returns the ID of the bookmark * * @return int */ public function getId(): int { return (int) $this->_id; } /** * Returns the database of the bookmark * * @return string */ public function getDatabase(): string { return $this->_database; } /** * Returns the user whom the bookmark belongs to * * @return string */ public function getUser(): string { return $this->_user; } /** * Returns the label of the bookmark * * @return string */ public function getLabel(): string { return $this->_label; } /** * Returns the query * * @return string */ public function getQuery(): string { return $this->_query; } /** * Adds a bookmark * * @return boolean whether the INSERT succeeds or not * * @access public */ public function save(): bool { $cfgBookmark = self::getParams($this->user); if (empty($cfgBookmark)) { return false; } $query = "INSERT INTO " . Util::backquote($cfgBookmark['db']) . "." . Util::backquote($cfgBookmark['table']) . " (id, dbase, user, query, label) VALUES (NULL, " . "'" . $this->dbi->escapeString($this->_database) . "', " . "'" . $this->dbi->escapeString($this->_user) . "', " . "'" . $this->dbi->escapeString($this->_query) . "', " . "'" . $this->dbi->escapeString($this->_label) . "')"; return $this->dbi->query($query, DatabaseInterface::CONNECT_CONTROL); } /** * Deletes a bookmark * * @return bool true if successful * * @access public */ public function delete(): bool { $cfgBookmark = self::getParams($this->user); if (empty($cfgBookmark)) { return false; } $query = "DELETE FROM " . Util::backquote($cfgBookmark['db']) . "." . Util::backquote($cfgBookmark['table']) . " WHERE id = " . $this->_id; return $this->dbi->tryQuery($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 = 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) { $query = str_replace('[VARIABLE]', $var, $query); } } return $query; } /** * Defines the bookmark parameters for the current user * * @param string $user Current user * * @return array|bool the bookmark parameters for the current user * @access public */ public static function getParams(string $user) { static $cfgBookmark = null; if (null !== $cfgBookmark) { return $cfgBookmark; } $relation = new Relation($GLOBALS['dbi']); $cfgRelation = $relation->getRelationsParam(); if ($cfgRelation['bookmarkwork']) { $cfgBookmark = [ 'user' => $user, 'db' => $cfgRelation['db'], 'table' => $cfgRelation['bookmark'], ]; } else { $cfgBookmark = false; } return $cfgBookmark; } /** * Creates a Bookmark object from the parameters * * @param DatabaseInterface $dbi DatabaseInterface object * @param string $user Current user * @param array $bkm_fields the properties of the bookmark to add; here, * $bkm_fields['bkm_sql_query'] is urlencoded * @param boolean $all_users whether to make the bookmark * available for all users * * @return Bookmark|false */ public static function createBookmark( DatabaseInterface $dbi, string $user, array $bkm_fields, bool $all_users = false ) { if (! (isset($bkm_fields['bkm_sql_query']) && strlen($bkm_fields['bkm_sql_query']) > 0 && isset($bkm_fields['bkm_label']) && strlen($bkm_fields['bkm_label']) > 0) ) { return false; } $bookmark = new Bookmark($dbi, $user); $bookmark->_database = $bkm_fields['bkm_database']; $bookmark->_label = $bkm_fields['bkm_label']; $bookmark->_query = $bkm_fields['bkm_sql_query']; $bookmark->_user = $all_users ? '' : $bkm_fields['bkm_user']; return $bookmark; } /** * Gets the list of bookmarks defined for the current database * * @param DatabaseInterface $dbi DatabaseInterface object * @param string $user Current user * @param string|bool $db the current database name or false * * @return Bookmark[] the bookmarks list * * @access public */ public static function getList( DatabaseInterface $dbi, string $user, $db = false ): array { $cfgBookmark = self::getParams($user); if (empty($cfgBookmark)) { return []; } $query = "SELECT * FROM " . Util::backquote($cfgBookmark['db']) . "." . Util::backquote($cfgBookmark['table']) . " WHERE ( `user` = ''" . " OR `user` = '" . $dbi->escapeString($cfgBookmark['user']) . "' )"; if ($db !== false) { $query .= " AND dbase = '" . $dbi->escapeString($db) . "'"; } $query .= " ORDER BY label ASC"; $result = $dbi->fetchResult( $query, null, null, DatabaseInterface::CONNECT_CONTROL, DatabaseInterface::QUERY_STORE ); if (! empty($result)) { $bookmarks = []; foreach ($result as $row) { $bookmark = new Bookmark($dbi, $user); $bookmark->_id = $row['id']; $bookmark->_database = $row['dbase']; $bookmark->_user = $row['user']; $bookmark->_label = $row['label']; $bookmark->_query = $row['query']; $bookmarks[] = $bookmark; } 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 mixed $id an identifier of the bookmark to get * @param string $id_field which field to look up the identifier * @param boolean $action_bookmark_all true: get all bookmarks regardless * of the owning user * @param boolean $exact_user_match whether to ignore bookmarks with no user * * @return Bookmark the bookmark * * @access public * */ 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 { $cfgBookmark = self::getParams($user); if (empty($cfgBookmark)) { return null; } $query = "SELECT * FROM " . Util::backquote($cfgBookmark['db']) . "." . Util::backquote($cfgBookmark['table']) . " WHERE dbase = '" . $dbi->escapeString($db) . "'"; if (! $action_bookmark_all) { $query .= " AND (user = '" . $dbi->escapeString($cfgBookmark['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, 'ASSOC', DatabaseInterface::CONNECT_CONTROL); if (! empty($result)) { $bookmark = new Bookmark($dbi, $user); $bookmark->_id = $result['id']; $bookmark->_database = $result['dbase']; $bookmark->_user = $result['user']; $bookmark->_label = $result['label']; $bookmark->_query = $result['query']; return $bookmark; } return null; } }