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Request #58302 session.gc_maxlifetime should be not used.
Submitted: 2008-08-07 06:27 UTC Modified: 2008-09-11 14:27 UTC
From: zwxajh at gmail dot com Assigned:
Status: Wont fix Package: memcache (PECL)
PHP Version: 5.1.6 OS: linux
Private report: No CVE-ID: None
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 [2008-08-07 06:27 UTC] zwxajh at gmail dot com 
Description:
------------
memcache_session.c 
line 188

if (mmc_pool_store(pool, "set", sizeof("set")-1, key_tmp, key_tmp_len, 0, INI_INT("session.gc_maxlifetime"), val, vallen TSRMLS_CC)) {
...

I thought that the session data lifetime should be same with 'session.cookie_lifetime'.


Reproduce code:
---------------
memcache_session.c 
line 188

if (mmc_pool_store(pool, "set", sizeof("set")-1, key_tmp, key_tmp_len, 0, INI_INT("session.cookie_lifetime") == 0?INI_INT("session.gc_maxlifetime"):INI_INT("session.cookie_lifetime"), val, vallen TSRMLS_CC)) {
...

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 [2008-09-11 14:27 UTC] mikael at synd dot info 
From the session documentation

"session.gc_maxlifetime specifies the number of seconds after which data will be seen as 'garbage' and cleaned up."

This sounds a lot like an expiry timeout, i.e. after these number of seconds it's ok to flush the value, same as in how memcached handles expiry ttl's.
 
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