Using SQL query to change Roundcube passwords

roles/ispmail-webmail/templates/roundcube-password-config.inc.php.j2

@@ -64,7 +64,7 @@ $config['password_db_dsn'] = 'mysql://mailuser:{{ispmail_mysql_mailuser_password
 // Escaping of macros is handled by this module.
 // Default: "SELECT update_passwd(%c, %u)"
 //$config['password_query'] = 'SELECT update_passwd(%D, %u)';
-$config['password_query'] = 'UPDATE virtual_users set password=%D where email=%u';
+$config['password_query'] = "UPDATE virtual_users SET password=CONCAT('{SHA256-CRYPT}', ENCRYPT (%p, CONCAT('$5$', SUBSTRING(SHA(RAND()), -16)))) WHERE email=%u;";
 
 // By default the crypt() function which is used to create the '%c'
 // parameter uses the md5 algorithm. To use different algorithms
@@ -78,13 +78,13 @@ $config['password_query'] = 'UPDATE virtual_users set password=%D where email=%u
 $config['password_idn_ascii'] = false;
 
 // Path for dovecotpw (if not in $PATH)
-$config['password_dovecotpw'] = '/usr/sbin/dovecot pw';
+//$config['password_dovecotpw'] = '/usr/sbin/dovecot pw';
 
 // Dovecot method (dovecotpw -s 'method')
-$config['password_dovecotpw_method'] = 'SHA256-CRYPT';
+//$config['password_dovecotpw_method'] = 'SHA256-CRYPT';
 
 // Enables use of password with crypt method prefix in %D, e.g. {MD5}$1$LUiMYWqx$fEkg/ggr/L6Mb2X7be4i1/
-$config['password_dovecotpw_with_method'] = true;
+//$config['password_dovecotpw_with_method'] = true;
 
 // Using a password hash for %n and %q variables.
 // Determine which hashing algorithm should be used to generate