# MDEV-16266 Reload SSL certificate
# This test reloads server SSL certs FLUSH SSL, and checks that 
# 1. old SSL connections (that existed before FLUSH) still work and use old certificate
# 2. new SSL connection use new certificate
# 3. if FLUSH SSL runs into error, SSL is still functioning
# SWtatus variable Ssl_server_not_after is used to tell the old certificate from new.


source include/have_ssl_communication.inc;

# Restart server with cert. files located in temp directory
# We are going to remove / replace them within the test, 
# so we can't use the ones in std_data directly.

let $ssl_cert=$MYSQLTEST_VARDIR/tmp/ssl_cert.pem;
let $ssl_key=$MYSQLTEST_VARDIR/tmp/ssl_key.pem;

copy_file $MYSQL_TEST_DIR/std_data/server-key.pem $ssl_key;
copy_file $MYSQL_TEST_DIR/std_data/server-cert.pem $ssl_cert;

let $restart_parameters=--ssl-key=$ssl_key --ssl-cert=$ssl_cert;
--source include/kill_mysqld.inc
--source include/start_mysqld.inc

connect  ssl_con,localhost,root,,,,,SSL;
SELECT VARIABLE_VALUE INTO @ssl_not_after FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME='Ssl_server_not_after';
let $ssl_not_after=`SELECT @ssl_not_after`;

remove_file $ssl_cert;
remove_file $ssl_key;

--echo # Use a different certificate ("Not after" certificate field changed)
copy_file $MYSQL_TEST_DIR/std_data/server-new-key.pem $ssl_key;
copy_file $MYSQL_TEST_DIR/std_data/server-new-cert.pem $ssl_cert;

FLUSH SSL;

--echo # Check new certificate used by new connection
exec $MYSQL --ssl  -e  "SELECT IF(VARIABLE_VALUE <> '$ssl_not_after', 'OK', 'FAIL') as Result FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME='Ssl_server_not_after'";

--echo # Check that existing SSL connection still works, and uses old certificate, even if new one is loaded in FLUSH SSL
connection ssl_con;
SELECT IF(VARIABLE_VALUE=@ssl_not_after,'OK','FAIL') as Result FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME='Ssl_server_not_after';

disconnect ssl_con;
connection default;

SELECT VARIABLE_NAME NAME, VARIABLE_VALUE VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME in ('Ssl_accepts', 'Ssl_finished_accepts');
FLUSH SSL;
#Check that accepts are zeroed by FLUSH SSL.
SELECT VARIABLE_NAME NAME, VARIABLE_VALUE VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME in ('Ssl_accepts', 'Ssl_finished_accepts');

--echo # Cleanup
remove_file $ssl_cert;
remove_file $ssl_key;
# restart with usuall SSL
let $restart_parameters=;
--source include/kill_mysqld.inc
--source include/start_mysqld.inc