danwin1210/le-chat-php
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Use subqueries for less db traffic

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This commit is contained in:
Daniel Winzen
2016-07-22 14:42:35 +02:00
parent 0ebb5ddc82
commit 8518536956
1 changed files with 22 additions and 9 deletions
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31
chat.php
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@ -18,15 +18,29 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>. * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/ */
/*
* status codes
* 0 - Kicked/Banned
* 1 - Guest
* 2 - Applicant
* 3 - Member
* 4 - System message
* 5 - Moderator
* 6 - Super-Moderator
* 7 - Admin
* 8 - Super-Admin
* 9 - Private messages
*/
send_headers(); send_headers();
// initialize and load variables/configuration // initialize and load variables/configuration
$A=array();// All registered members $A=array();// All registered members [display name, style, status, nickname]
$C=array();// Configuration $C=array();// Configuration
$F=array();// Fonts $F=array();// Fonts
$H=array();// HTML-stuff $H=array();// HTML-stuff
$I=array();// Translations $I=array();// Translations
$L=array();// Languages $L=array();// Languages
$P=array();// All present users $P=array();// All present users [display name, style, status, nickname]
$U=array();// This user data $U=array();// This user data
$countmods=0;// Present moderators $countmods=0;// Present moderators
$db;// Database connection $db;// Database connection
@ -2020,9 +2034,9 @@ function create_session($setup){
if(!$stmt->fetch(PDO::FETCH_BOUND)){ if(!$stmt->fetch(PDO::FETCH_BOUND)){
send_error($I['captchaexpire']); send_error($I['captchaexpire']);
} }
$timeout=time()-get_setting('captchatime'); $time=time();
$stmt=$db->prepare('DELETE FROM ' . PREFIX . 'captcha WHERE id=? OR time<?;'); $stmt=$db->prepare('DELETE FROM ' . PREFIX . 'captcha WHERE id=? OR time<(?-(SELECT value FROM ' . PREFIX . "settings WHERE setting='captchatime'));");
$stmt->execute(array($_REQUEST['challenge'], $timeout)); $stmt->execute(array($_REQUEST['challenge'], $time));
}else{ }else{
if(!$code=$memcached->get(DBNAME . '-' . PREFIX . "captcha-$_REQUEST[challenge]")){ if(!$code=$memcached->get(DBNAME . '-' . PREFIX . "captcha-$_REQUEST[challenge]")){
send_error($I['captchaexpire']); send_error($I['captchaexpire']);
@ -2295,10 +2309,9 @@ function get_nowchatting(){
function parse_sessions(){ function parse_sessions(){
global $P, $U, $countmods, $db; global $P, $U, $countmods, $db;
// delete old sessions // delete old sessions
$guestexpire=time()-60*get_setting('guestexpire'); $time=time();
$memberexpire=time()-60*get_setting('memberexpire'); $result=$db->prepare('SELECT nickname, status FROM ' . PREFIX . 'sessions WHERE (status<=2 AND lastpost<(?-60*(SELECT value FROM ' . PREFIX . "settings WHERE setting='guestexpire'))) OR (status>2 AND lastpost<(?-60*(SELECT value FROM " . PREFIX . "settings WHERE setting='memberexpire')));");
$result=$db->prepare('SELECT nickname, status FROM ' . PREFIX . 'sessions WHERE (status<=2 AND lastpost<?) OR (status>2 AND lastpost<?);'); $result->execute(array($time, $time));
$result->execute(array($guestexpire, $memberexpire));
if($tmp=$result->fetchAll(PDO::FETCH_ASSOC)){ if($tmp=$result->fetchAll(PDO::FETCH_ASSOC)){
$stmt=$db->prepare('DELETE FROM ' . PREFIX . 'sessions WHERE nickname=?;'); $stmt=$db->prepare('DELETE FROM ' . PREFIX . 'sessions WHERE nickname=?;');
$stmt1=$db->prepare('UPDATE ' . PREFIX . "messages SET poster='' WHERE poster=? AND poststatus=9;"); $stmt1=$db->prepare('UPDATE ' . PREFIX . "messages SET poster='' WHERE poster=? AND poststatus=9;");