--source include/not_embedded.inc
create database db1;
use db1;
create table t1(a int);
insert into t1 values (1),(2),(3);
create table t2(a int);

CREATE USER 'foo'@'%';
CREATE USER 'bar'@'%';

create definer=foo SQL SECURITY definer view db1.v1 as select * from db1.t1;

delimiter |;
create definer=foo function f1 (a int) returns INT SQL SECURITY DEFINER
BEGIN
  insert into t2 select * from t1; 
  return a+1;
END|
delimiter ;|

--change_user foo
set optimizer_trace="enabled=on";
--error 1142
select * from db1.t1;
select * from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";

--change_user root
grant select(a)  on db1.t1 to 'foo'@'%';

--change_user foo
set optimizer_trace="enabled=on";
select * from db1.t1;

--echo # INSUFFICIENT PRIVILEGES should be set to 1 
--echo # Trace and Query should be empty
--echo # We need SELECT privilege on the table db1.t1;

select * from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";

--change_user root
select * from information_schema.OPTIMIZER_TRACE;
grant select  on db1.t1 to 'foo'@'%';
grant select  on db1.t2 to 'foo'@'%';

--change_user foo
set optimizer_trace="enabled=on";

--echo #
--echo # SELECT privilege on the table db1.t1
--echo # The trace would be present.
--echo #
select * from db1.t1;
select * from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";

--change_user root

grant select  on db1.v1 to 'foo'@'%';
grant show view  on db1.v1 to 'foo'@'%';

grant select  on db1.v1 to 'bar'@'%';
grant show view  on db1.v1 to 'bar'@'%';

--change_user foo
select current_user();
set optimizer_trace="enabled=on";
--disable_ps2_protocol
select * from db1.v1;
--enable_ps2_protocol
select * from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";

--change_user bar
select current_user();
set optimizer_trace="enabled=on";
select * from db1.v1;
--echo #
--echo # INSUFFICIENT PRIVILEGES should be set to 1 
--echo # Trace and Query should be empty
--echo # Privileges for the underlying tables of the
--echo # view should also be present for the current user
--echo #
select * from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";

--change_user root
grant execute on function db1.f1 to 'foo'@'%';
grant execute on function db1.f1 to 'bar'@'%';

grant select  on db1.t1 to 'bar'@'%';
grant insert  on db1.t2 to 'foo'@'%';

--change_user foo
select current_user();
set optimizer_trace="enabled=on";

select db1.f1(a) from db1.t1;
select INSUFFICIENT_PRIVILEGES from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";

--change_user bar
select current_user();
set optimizer_trace="enabled=on";
--echo #
--echo # The trace should be empty, because the current user
--echo # does not have INSERT privilege for table t2 which is
--echo # used in the function f1
--echo #
select db1.f1(a) from db1.t1;
select * from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";

--change_user root
select current_user();
REVOKE ALL PRIVILEGES, GRANT OPTION FROM foo;

--change_user root
drop user if exists foo;
drop user if exists bar;
drop table db1.t1, db1.t2;
drop database db1;


--echo # 
--echo # Privilege checking for optimizer trace across connections
--echo # 

connection default;
create database db1;
use db1;
create table t1(a int);
insert into t1 values (1),(2),(3);
create table t2(a int);

CREATE USER 'foo'@'localhost';
CREATE USER 'bar'@'localhost';
grant all on *.* to foo@localhost with grant option;
grant all on *.* to bar@localhost with grant option;
#grant select on db1.t1 to bar@localhost;
#grant insert on db1.t2 to bar@localhost;

connect (con_foo,localhost, foo,, db1);
connection default;
connect (con_bar,localhost, bar,, db1);
connection default;
create definer=foo@localhost SQL SECURITY definer view db1.v1 as select * from db1.t1;

delimiter |;
create function f1 (a int) returns INT SQL SECURITY DEFINER 
BEGIN
  insert into t2 select * from t1;
  return a+1;
END|
delimiter ;|

grant execute on function f1 to bar@localhost;

--disable_view_protocol
connection con_foo;
set optimizer_trace='enabled=on';
select * from db1.t1;
--echo #
--echo # Test that security context changes are allowed when, and only
--echo # when, invoker has all global privileges.
--echo #
select query, INSUFFICIENT_PRIVILEGES from information_schema.OPTIMIZER_TRACE;
set optimizer_trace='enabled=off';

connection con_bar;
set optimizer_trace='enabled=on';
select f1(a) from db1.t1;
select query, INSUFFICIENT_PRIVILEGES from information_schema.OPTIMIZER_TRACE;
set optimizer_trace='enabled=off';

connection default;
revoke shutdown on *.* from foo@localhost;
disconnect con_foo;
connect (con_foo, localhost, foo,, db1);

connection con_foo;
set optimizer_trace='enabled=on';
select f1(a) from db1.t1;
--echo #
--echo # Test to check if invoker has all global privileges or not, only then
--echo # the security context changes are allowed. The user has been revoked
--echo # shutdown privilege so INSUFFICIENT PRIVILEGES should be set to 1.
--echo #
select query, INSUFFICIENT_PRIVILEGES from information_schema.OPTIMIZER_TRACE;
set optimizer_trace='enabled=off';
--enable_view_protocol

connection default;
select current_user();
select * from db1.v1;
drop user foo@localhost, bar@localhost;
drop view db1.v1;
drop table db1.t1;
drop database db1;
set optimizer_trace="enabled=off";