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<?php
/*
LibreSSL - CAcert web application
Copyright (C) 2004-2008 CAcert Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* Function to recalculate the cached Assurer status
*
* @param int $userID
* if the user ID is not given the flag will be recalculated for all users
*
* @return bool
* false if there was an error on fixing the flag. This does NOT return the
* new value of the flag
*/
function fix_assurer_flag($userID = NULL)
{
// Update Assurer-Flag on users table if 100 points and CATS passed.
//
// We may have some performance issues here if no userID is given
// there are ~150k assurances and ~220k users currently
// but the exists-clause on cats_passed should be a good filter
$sql = '
UPDATE `users` AS `u` SET `assurer` = 1
WHERE '.(
($userID === NULL) ?
'`u`.`assurer` = 0' :
'`u`.`id` = \''.intval($userID).'\''
).'
AND EXISTS(
SELECT 1 FROM `cats_passed` AS `cp`, `cats_variant` AS `cv`
WHERE `cp`.`variant_id` = `cv`.`id`
AND `cv`.`type_id` = 1
AND `cp`.`user_id` = `u`.`id`
)
AND (
SELECT SUM(`points`) FROM `notary` AS `n`
WHERE `n`.`to` = `u`.`id`
AND (`n`.`expire` > now()
OR `n`.`expire` IS NULL)
) >= 100';
$query = mysql_query($sql);
if (!$query) {
return false;
}
// Challenge has been passed and non-expired points >= 100
// Reset flag if requirements are not met
//
// Also a bit performance critical but assurer flag is only set on
// ~5k accounts
$sql = '
UPDATE `users` AS `u` SET `assurer` = 0
WHERE '.(
($userID === NULL) ?
'`u`.`assurer` <> 0' :
'`u`.`id` = \''.intval($userID).'\''
).'
AND (
NOT EXISTS(
SELECT 1 FROM `cats_passed` AS `cp`,
`cats_variant` AS `cv`
WHERE `cp`.`variant_id` = `cv`.`id`
AND `cv`.`type_id` = 1
AND `cp`.`user_id` = `u`.`id`
)
OR (
SELECT SUM(`points`) FROM `notary` AS `n`
WHERE `n`.`to` = `u`.`id`
AND (
`n`.`expire` > now()
OR `n`.`expire` IS NULL
)
) < 100
)';
$query = mysql_query($sql);
if (!$query) {
return false;
}
return true;
}
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