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logout.php: Pull out DB code

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* Move DB code for removing a session in logout.php to a new function in
acctfuncs.inc.php
* Add ability for clear_expired_sessions function to check for DB connection
* Centralization of DB code important in a future transition to PDO interface

Signed-off-by: canyonknight <canyonknight@gmail.com>
Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>
This commit is contained in:
canyonknight 2012-05-23 15:29:02 -04:00 • committed by Lukas Fleischer
parent d3de667901
commit f93f1a652f
2 changed files with 20 additions and 5 deletions
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17
web/lib/acctfuncs.inc.php
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@ -681,10 +681,25 @@ function user_is_privileged($id, $dbh) {
}
# Remove session on logout
function delete_session_id($sid, $dbh=NULL) {
if(!$dbh) {
$dbh = db_connect();
}
$q = "DELETE FROM Sessions WHERE SessionID = '";
$q.= db_escape_string($sid) . "'";
db_query($q, $dbh);
}
# Clear out old expired sessions.
function clear_expired_sessions( $dbh ) {
function clear_expired_sessions($dbh=NULL) {
global $LOGIN_TIMEOUT;
if(!$dbh) {
$dbh = db_connect();
}
$q = "DELETE FROM Sessions WHERE LastUpdateTS < (UNIX_TIMESTAMP() - $LOGIN_TIMEOUT)";
db_query($q, $dbh);