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<?php
/**
* utf8 database conversion and file merging for usernames with multibyte chars
*
*/
// check that we need to do the utf8 conversion
// C&P logic from 2010033101
$dbversion = (int) datalist_get('version');
if ($dbversion < 2009100701) {
// start a new link to the DB to see what its defaults are.
$link = mysql_connect($CONFIG->dbhost, $CONFIG->dbuser, $CONFIG->dbpass, TRUE);
mysql_select_db($CONFIG->dbname, $link);
$q = "SHOW VARIABLES LIKE 'character_set_client'";
$r = mysql_query($q);
$client = mysql_fetch_assoc($r);
$q = "SHOW VARIABLES LIKE 'character_set_connection'";
$r = mysql_query($q);
$connection = mysql_fetch_assoc($r);
// only run upgrade if not already talking utf8
if ($client['Value'] != 'utf8' && $connection['Value'] != 'utf8') {
$qs = array();
$qs[] = "SET NAMES utf8";
$qs[] = "ALTER TABLE {$CONFIG->dbprefix}users_entity DISABLE KEYS";
$qs[] = "REPLACE INTO {$CONFIG->dbprefix}users_entity
(guid, name, username, password, salt, email, language, code,
banned, admin, last_action, prev_last_action, last_login, prev_last_login)
SELECT guid, name, unhex(hex(convert(username using latin1))),
password, salt, email, language, code,
banned, admin, last_action, prev_last_action, last_login, prev_last_login
FROM {$CONFIG->dbprefix}users_entity";
$qs[] = "ALTER TABLE {$CONFIG->dbprefix}users_entity ENABLE KEYS";
foreach ($qs as $q) {
if (!update_data($q)) {
throw new Exception('Couldn\'t execute upgrade query: ' . $q);
}
}
global $DB_QUERY_CACHE, $ENTITY_CACHE;
/**
Upgrade file locations
*/
// new connection to force into utf8 mode to get the old name
$link = mysql_connect($CONFIG->dbhost, $CONFIG->dbuser, $CONFIG->dbpass, TRUE);
mysql_select_db($CONFIG->dbname, $link);
// must be the first command
mysql_query("SET NAMES utf8");
$users = mysql_query("SELECT guid, username FROM {$CONFIG->dbprefix}users_entity
WHERE username != ''", $link);
while ($user = mysql_fetch_object($users)) {
$DB_QUERY_CACHE = $ENTITY_CACHE = array();
$to = $CONFIG->dataroot . user_file_matrix($user->guid);
foreach (array('1_0', '1_1', '1_6') as $version) {
$function = "file_matrix_$version";
$from = $CONFIG->dataroot . $function($user->username);
merge_directories($from, $to, $move = TRUE, $preference = 'from');
}
}
}
}
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