--source include/not_embedded.inc

#
# This test covers show databases command interacting with DENY command.
# A user is able to see a database in `show databases` if:
# 1. They have globally granted any of the *DB_ACLS* (see privilege sets)
#    or they have SHOW DATABASES privilege
# 2. They have on the database level granted any privilege.
# 3. They have grants on any of the underlying database objects:
#    a. Tables
#    b. Columns
#    c. Stored Procedures
# A deny masking rights should affect all levels of this chain.
#

create user foo;
create database some_db;

create table some_db.t1 (a int, secret int);


show databases;

grant select on *.* to foo;
show grants for foo;

--echo #############################
--echo # Test global level denies. #
--echo #############################

--echo #
--echo # Test masking global level denies.
--echo #
--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

--echo #
--echo # Mask all rigths.
--echo #
deny select on *.* to foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

--echo #
--echo # Not all rights masked.
--echo #
grant insert on *.* to foo;

--echo #
--echo # some_db should now show up in the list because insert is not masked.
--echo #
--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

deny insert on *.* to foo;

--echo #
--echo # some_db should not be present now.
--echo #
--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

grant show databases on *.* to foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

deny show databases on *.* to foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

--echo #
--echo # Test masking database level grants with global denies.
--echo #
grant select on some_db.* to foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

grant update on some_db.* to foo;

--connect (con1,localhost,foo,,)
--echo #
--echo # Update not masked via global deny, some_db should show up.
--echo #
show databases;
disconnect con1;
connection default;

deny update on *.* to foo;

--connect (con1,localhost,foo,,)
--echo #
--echo # Now it should show up.
--echo #
show databases;
disconnect con1;
connection default;

--echo #
--echo # Test masking table level grants with global denies.
--echo #

connection default;
grant insert on some_db.t1 to foo;
show grants for foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;

connection default;
grant delete on some_db.t1 to foo;
show grants for foo;

--connect (con1,localhost,foo,,)
--echo #
--echo # some_db should show up because we have delete rights on t1.
--echo #
show databases;
disconnect con1;
connection default;

deny delete on *.* to foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

--echo #
--echo # Test masking column level grants with global denies.
--echo #
grant references (a) on some_db.t1 to foo;
show grants for foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

deny references on *.* to foo;
show grants for foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

delimiter |;

--echo #
--echo # Test masking procedure / function / package level grants with global
--echo # denies.
--echo #

create procedure some_db.proc_1()
begin
select 1;
end|

create function some_db.func_1() returns int
begin
return 3;
end|

set @old_sql_mode=@@sql_mode|
set sql_mode=ORACLE|

create package some_db.util_functions as
  function f1(id int) return int;
end|

create package body some_db.util_functions as
  function f1(id int) return int as result int;
  begin
    return 10;
  end;
end|


delimiter ;|

grant execute on procedure some_db.proc_1 to foo;

grant execute on function some_db.func_1 to foo;

grant execute on package some_db.util_functions to foo;

set sql_mode=@old_sql_mode;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

deny execute on *.* to foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;



drop user foo;
drop database some_db;

let $REGEX_VERSION_ID=/$mysql_get_server_version/VERSION_ID/;

--echo ###############################
--echo # Test database level denies. #
--echo ###############################

create user foo;
grant select on *.* to foo;

--echo #
--echo # Test masking database level denies.
--echo #
--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

--echo #
--echo # Mask all rights.
--echo #
deny select on mysql.* to foo;

--connect (con1,localhost,foo,,)
show databases;

disconnect con1;
connection default;

--echo #
--echo # Not all rights masked.
--echo #
grant insert on *.* to foo;
grant insert on mysql.* to foo;

--echo #
--echo # mysql db should now show up in the list because insert is not masked.
--echo #
--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

deny insert on mysql.* to foo;

--echo #
--echo # mysql db should not be present now.
--echo #
--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

grant show databases on *.* to foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

deny show databases on *.* to foo;


--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

show grants for foo;
grant update on mysql.* to foo;

--connect (con1,localhost,foo,,)
--echo #
--echo # Update not masked via database deny, mysql should show up.
--echo #
show databases;
disconnect con1;
connection default;

deny update on mysql.* to foo;

--connect (con1,localhost,foo,,)
--echo #
--echo # Now it should not show up.
--echo #
show grants;
show databases;
disconnect con1;
connection default;

--echo #
--echo # Test masking table level grants with global denies.
--echo #

create table mysql.t1 (a int);

connection default;
grant insert on mysql.t1 to foo;
show grants for foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;

connection default;
grant delete on mysql.t1 to foo;
show grants for foo;

--connect (con1,localhost,foo,,)
--echo #
--echo # mysql should show up because we have delete rights on t1.
--echo #
show databases;
disconnect con1;
connection default;

deny delete on mysql.* to foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

--echo #
--echo # Test masking column level grants with global denies.
--echo #
grant references (a) on mysql.t1 to foo;
show grants for foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

deny references on mysql.* to foo;
show grants for foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

delimiter |;

--echo #
--echo # Test masking procedure / function / package level grants with global
--echo # denies.
--echo #

create procedure mysql.proc_1()
begin
select 1;
end|

create function mysql.func_1() returns int
begin
return 3;
end|

set @old_sql_mode=@@sql_mode|
set sql_mode=ORACLE|

create package mysql.util_functions as
  function f1(id int) return int;
end|

create package body mysql.util_functions as
  function f1(id int) return int as result int;
  begin
    return 10;
  end;
end|


delimiter ;|

grant execute on procedure mysql.proc_1 to foo;

grant execute on function mysql.func_1 to foo;

grant execute on package mysql.util_functions to foo;

set sql_mode=@old_sql_mode;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

deny execute on mysql.* to foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

--replace_regex $REGEX_VERSION_ID
select user, host, JSON_EXTRACT(priv, '$.deny') from mysql.global_priv
where user = 'foo';
show grants for foo;

create database some_db;
grant all on some_db.* to foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

deny all on some_db.* to foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

--echo #
--echo # Removing a deny for show databases globaly should make some_db show up.
--echo #
revoke deny all on *.* from foo;

--connect (con1,localhost,foo,,)
show databases;
disconnect con1;
connection default;

drop database some_db;
drop table mysql.t1;
drop procedure mysql.proc_1;
drop function mysql.func_1;
set @old_sql_mode=@@sql_mode;
set sql_mode=ORACLE;
drop package body mysql.util_functions;
drop package mysql.util_functions;
set sql_mode=@old_sql_mode;
drop user foo;


--echo #
--echo # Test table level denies interacting with show databases
--echo #
--echo # If a user gets access to a database via a higher level grant,
--echo # but has all the resources in that database denied individually,
--echo # the user should still be able to see the database, empty.
--echo #

create database some_db;
create user foo;
create table some_db.t1 (a int);

grant select on *.* to foo;
deny select on some_db.t1 to foo;

--connect (con1,localhost,foo,,)
--echo #
--echo # some_db should still be visible, but it should show up as empty.
--echo #
show databases;
show tables from some_db;
disconnect con1;

connection default;

drop user foo;
drop database some_db;

--echo #
--echo # Test table level denies masking table and column level grants.
--echo #

connection default;
create user foo;
create database some_db;
create table some_db.t1 (a int, b int);

grant select on some_db.t1 to foo;
grant insert(a) on some_db.t1 to foo;

--connect (con1,localhost,foo,,)
use some_db;
show tables;
show full columns from some_db.t1;
disconnect con1;

connection default;
deny select on some_db.t1 to foo;

--connect (con1,localhost,foo,,)
use some_db;
show tables from some_db;
show full columns from some_db.t1;
disconnect con1;

connection default;
deny insert on some_db.t1 to foo;

--echo #
--echo # Now all rights for t1 are denied.
--echo #
--connect (con1,localhost,foo,,)
--error ER_DBACCESS_DENIED_ERROR
use some_db;
--error ER_DBACCESS_DENIED_ERROR
show tables from some_db;
disconnect con1;


connection default;
drop user foo;
drop database some_db;

--echo #
--echo # Test column level denies masking column level grants.
--echo #
connection default;
create user foo;
create database some_db;
create table some_db.t1 (a int, b int);
grant insert(a) on some_db.t1 to foo;

deny select(a) on some_db.t1 to foo;

--connect (con1,localhost,foo,,)
show databases;
use some_db;
show tables from some_db;
show full columns from some_db.t1;
disconnect con1;
connection default;

deny insert(a) on some_db.t1 to foo;

--connect (con1,localhost,foo,,)
show databases;
--error ER_DBACCESS_DENIED_ERROR
use some_db;
--error ER_DBACCESS_DENIED_ERROR
show tables from some_db;
--error ER_TABLEACCESS_DENIED_ERROR
show full columns from some_db.t1;
disconnect con1;
connection default;

grant select(b) on some_db.t1 to foo;

--connect (con1,localhost,foo,,)
show databases;
use some_db;
show tables from some_db;
show full columns from some_db.t1;
disconnect con1;
connection default;

connection default;

deny select(b) on some_db.t1 to foo;

--connect (con1,localhost,foo,,)
show databases;
--error ER_DBACCESS_DENIED_ERROR
use some_db;
--error ER_DBACCESS_DENIED_ERROR
show tables from some_db;
--error ER_TABLEACCESS_DENIED_ERROR
show full columns from some_db.t1;
disconnect con1;

connection default;
drop user foo;
drop database some_db;