From 9cda96b8b539e85f5be3afed406905f341f4741b Mon Sep 17 00:00:00 2001 From: Oleg Andreyev Date: Mon, 14 May 2018 20:26:58 +0300 Subject: [PATCH] #27250 limiting GET_LOCK key up to 64 char due to changes in MySQL 5.7.5 and later --- .../Session/Storage/Handler/PdoSessionHandler.php | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php b/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php index dfd66516062c3..0825ee6ea9899 100644 --- a/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php +++ b/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php @@ -552,14 +552,16 @@ private function doAdvisoryLock($sessionId) { switch ($this->driver) { case 'mysql': + // MySQL 5.7.5 and later enforces a maximum length on lock names of 64 characters. Previously, no limit was enforced. + $lockId = \substr($sessionId, 0, 64); // should we handle the return value? 0 on timeout, null on error // we use a timeout of 50 seconds which is also the default for innodb_lock_wait_timeout $stmt = $this->pdo->prepare('SELECT GET_LOCK(:key, 50)'); - $stmt->bindValue(':key', $sessionId, \PDO::PARAM_STR); + $stmt->bindValue(':key', $lockId, \PDO::PARAM_STR); $stmt->execute(); $releaseStmt = $this->pdo->prepare('DO RELEASE_LOCK(:key)'); - $releaseStmt->bindValue(':key', $sessionId, \PDO::PARAM_STR); + $releaseStmt->bindValue(':key', $lockId, \PDO::PARAM_STR); return $releaseStmt; case 'pgsql': pFad - Phonifier reborn

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