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web: improved midnight calculation based on timezone

This commit is contained in:
Bart Van Der Meerssche 2009-09-14 18:37:25 +00:00
parent 3ffe8c21ae
commit 2b9d98771e
1 changed files with 16 additions and 4 deletions
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18
web/drupal/modules/logger/xmlrpc1.inc
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@ -105,8 +105,8 @@ function _logger_measurement_add($auth, $logs) {
if ($return == 0) {
// update the night rrd every day at 6AM UTC
if (time() > $meterdata->night) {
$timestamp = floor(time()/86400)*86400;
$start = $timestamp + 3600;
$midnight = _logger_midnight(time(), $auth['device']);
$start = $midnight + 7200; // 2AM local time
$end = $start + 10800; // 3h time interval
$command = $path->root ."/rrdtool fetch ". $path->base . $meter .".rrd AVERAGE -r 900 -s ". $start ." -e ". $end ." | tail -n 12 | awk -F': ' '{SUM += $2} END {print SUM/12}'";
$night = (float)shell_exec($command); //test shell_exec iso system
@ -118,7 +118,7 @@ function _logger_measurement_add($auth, $logs) {
else {
watchdog_xmlrpc('logger.measurementAdd', 'error updating night rrd: %command', array('%command' => $command), WATCHDOG_ERROR); //debugging
}
$meterdata->night = $timestamp + 104400; //add an offset of 29h, i.e. 5AM UTC next day
$meterdata->night = $midnight + 108000; //add an offset of 30h = 6AM local time
}
// {logger_meters} is updated with the true metervalue $value, NOT $value*$meterdata->factor since we're not normalising this entry!
db_query("UPDATE {logger_meters} SET access = %d, night = %d, value = %d WHERE meter = '%s'", time(), $meterdata->night, $value, $meter);
@ -134,6 +134,18 @@ function _logger_measurement_add($auth, $logs) {
return xmlrpc_error(-31000, t('Authentication failed.'));
}
/**
* Calculate the most recent midnight for this device based on the user's timezone
*/
function _logger_midnight($timestamp, $device) {
$timezone = db_result(db_query("SELECT u.timezone FROM {logger_devices} ld INNER JOIN {users} u ON ld.uid = u.uid WHERE ld.device = '%s'", $device));
// add one day to make sure $midnight > $timestamp
$midnight = floor($timestamp/86400 + 1)*86400 - $timezone;
// search for first $midnight < $timestamp
while ($midnight > $timestamp) $midnight -= 86400;
return $midnight;
}
function _logger_authenticate_hmac_sha1($auth, $message) {
$auth['key'] = db_result(db_query("SELECT sha FROM {logger_devices} WHERE device = '%s'", $auth['device']));
if (hash_hmac('sha1', $auth['timestamp'] .':'. _logger_serialise($message) .':'. $auth['key'], $auth['key']) == $auth['signature'] && $auth['timestamp'] > time() - 300) {