privileges.out

PostgreSQL 8.1.4的源码 适用于Linux下的开源数据库系统

--
-- Test access privileges
--
CREATE USER regressuser1;
CREATE USER regressuser2;
CREATE USER regressuser3;
CREATE USER regressuser4;
CREATE USER regressuser4;	-- duplicate
ERROR:  role "regressuser4" already exists
CREATE GROUP regressgroup1;
CREATE GROUP regressgroup2 WITH USER regressuser1, regressuser2;
ALTER GROUP regressgroup1 ADD USER regressuser4;
ALTER GROUP regressgroup2 ADD USER regressuser2;	-- duplicate
NOTICE:  role "regressuser2" is already a member of role "regressgroup2"
ALTER GROUP regressgroup2 DROP USER regressuser2;
ALTER GROUP regressgroup2 ADD USER regressuser4;
-- test owner privileges
SET SESSION AUTHORIZATION regressuser1;
SELECT session_user, current_user;
 session_user | current_user 
--------------+--------------
 regressuser1 | regressuser1
(1 row)

CREATE TABLE atest1 ( a int, b text );
SELECT * FROM atest1;
 a | b 
---+---
(0 rows)

INSERT INTO atest1 VALUES (1, 'one');
DELETE FROM atest1;
UPDATE atest1 SET a = 1 WHERE b = 'blech';
LOCK atest1 IN ACCESS EXCLUSIVE MODE;
REVOKE ALL ON atest1 FROM PUBLIC;
SELECT * FROM atest1;
 a | b 
---+---
(0 rows)

GRANT ALL ON atest1 TO regressuser2;
GRANT SELECT ON atest1 TO regressuser3, regressuser4;
SELECT * FROM atest1;
 a | b 
---+---
(0 rows)

CREATE TABLE atest2 (col1 varchar(10), col2 boolean);
GRANT SELECT ON atest2 TO regressuser2;
GRANT UPDATE ON atest2 TO regressuser3;
GRANT INSERT ON atest2 TO regressuser4;
SET SESSION AUTHORIZATION regressuser2;
SELECT session_user, current_user;
 session_user | current_user 
--------------+--------------
 regressuser2 | regressuser2
(1 row)

-- try various combinations of queries on atest1 and atest2
SELECT * FROM atest1; -- ok
 a | b 
---+---
(0 rows)

SELECT * FROM atest2; -- ok
 col1 | col2 
------+------
(0 rows)

INSERT INTO atest1 VALUES (2, 'two'); -- ok
INSERT INTO atest2 VALUES ('foo', true); -- fail
ERROR:  permission denied for relation atest2
INSERT INTO atest1 SELECT 1, b FROM atest1; -- ok
UPDATE atest1 SET a = 1 WHERE a = 2; -- ok
UPDATE atest2 SET col2 = NOT col2; -- fail
ERROR:  permission denied for relation atest2
SELECT * FROM atest1 FOR UPDATE; -- ok
 a |  b  
---+-----
 1 | two
 1 | two
(2 rows)

SELECT * FROM atest2 FOR UPDATE; -- fail
ERROR:  permission denied for relation atest2
DELETE FROM atest2; -- fail
ERROR:  permission denied for relation atest2
LOCK atest2 IN ACCESS EXCLUSIVE MODE; -- fail
ERROR:  permission denied for relation atest2
COPY atest2 FROM stdin; -- fail
ERROR:  permission denied for relation atest2
GRANT ALL ON atest1 TO PUBLIC; -- fail
WARNING:  no privileges were granted
-- checks in subquery, both ok
SELECT * FROM atest1 WHERE ( b IN ( SELECT col1 FROM atest2 ) );
 a | b 
---+---
(0 rows)

SELECT * FROM atest2 WHERE ( col1 IN ( SELECT b FROM atest1 ) );
 col1 | col2 
------+------
(0 rows)

SET SESSION AUTHORIZATION regressuser3;
SELECT session_user, current_user;
 session_user | current_user 
--------------+--------------
 regressuser3 | regressuser3
(1 row)

SELECT * FROM atest1; -- ok
 a |  b  
---+-----
 1 | two
 1 | two
(2 rows)

SELECT * FROM atest2; -- fail
ERROR:  permission denied for relation atest2
INSERT INTO atest1 VALUES (2, 'two'); -- fail
ERROR:  permission denied for relation atest1
INSERT INTO atest2 VALUES ('foo', true); -- fail
ERROR:  permission denied for relation atest2
INSERT INTO atest1 SELECT 1, b FROM atest1; -- fail
ERROR:  permission denied for relation atest1
UPDATE atest1 SET a = 1 WHERE a = 2; -- fail
ERROR:  permission denied for relation atest1
UPDATE atest2 SET col2 = NULL; -- ok
UPDATE atest2 SET col2 = NOT col2; -- fails; requires SELECT on atest2
ERROR:  permission denied for relation atest2
UPDATE atest2 SET col2 = true FROM atest1 WHERE atest1.a = 5; -- ok
SELECT * FROM atest1 FOR UPDATE; -- fail
ERROR:  permission denied for relation atest1
SELECT * FROM atest2 FOR UPDATE; -- fail
ERROR:  permission denied for relation atest2
DELETE FROM atest2; -- fail
ERROR:  permission denied for relation atest2
LOCK atest2 IN ACCESS EXCLUSIVE MODE; -- ok
COPY atest2 FROM stdin; -- fail
ERROR:  permission denied for relation atest2
-- checks in subquery, both fail
SELECT * FROM atest1 WHERE ( b IN ( SELECT col1 FROM atest2 ) );
ERROR:  permission denied for relation atest2
SELECT * FROM atest2 WHERE ( col1 IN ( SELECT b FROM atest1 ) );
ERROR:  permission denied for relation atest2
SET SESSION AUTHORIZATION regressuser4;
COPY atest2 FROM stdin; -- ok
SELECT * FROM atest1; -- ok
 a |  b  
---+-----
 1 | two
 1 | two
(2 rows)

-- groups
SET SESSION AUTHORIZATION regressuser3;
CREATE TABLE atest3 (one int, two int, three int);
GRANT DELETE ON atest3 TO GROUP regressgroup2;
SET SESSION AUTHORIZATION regressuser1;
SELECT * FROM atest3; -- fail
ERROR:  permission denied for relation atest3
DELETE FROM atest3; -- ok
-- views
SET SESSION AUTHORIZATION regressuser3;
CREATE VIEW atestv1 AS SELECT * FROM atest1; -- ok
/* The next *should* fail, but it's not implemented that way yet. */
CREATE VIEW atestv2 AS SELECT * FROM atest2;
CREATE VIEW atestv3 AS SELECT * FROM atest3; -- ok
SELECT * FROM atestv1; -- ok
 a |  b  
---+-----
 1 | two
 1 | two
(2 rows)

SELECT * FROM atestv2; -- fail
ERROR:  permission denied for relation atest2
GRANT SELECT ON atestv1, atestv3 TO regressuser4;
GRANT SELECT ON atestv2 TO regressuser2;
SET SESSION AUTHORIZATION regressuser4;
SELECT * FROM atestv1; -- ok
 a |  b  
---+-----
 1 | two
 1 | two
(2 rows)

SELECT * FROM atestv2; -- fail
ERROR:  permission denied for relation atestv2
SELECT * FROM atestv3; -- ok
 one | two | three 
-----+-----+-------
(0 rows)

CREATE VIEW atestv4 AS SELECT * FROM atestv3; -- nested view
SELECT * FROM atestv4; -- ok
 one | two | three 
-----+-----+-------
(0 rows)

GRANT SELECT ON atestv4 TO regressuser2;
SET SESSION AUTHORIZATION regressuser2;
-- Two complex cases:
SELECT * FROM atestv3; -- fail
ERROR:  permission denied for relation atestv3
SELECT * FROM atestv4; -- ok (even though regressuser2 cannot access underlying atestv3)
 one | two | three 
-----+-----+-------
(0 rows)

SELECT * FROM atest2; -- ok
 col1 | col2 
------+------
 bar  | t
(1 row)

SELECT * FROM atestv2; -- fail (even though regressuser2 can access underlying atest2)
ERROR:  permission denied for relation atest2
-- privileges on functions, languages
-- switch to superuser
\c -
REVOKE ALL PRIVILEGES ON LANGUAGE sql FROM PUBLIC;
GRANT USAGE ON LANGUAGE sql TO regressuser1; -- ok
GRANT USAGE ON LANGUAGE c TO PUBLIC; -- fail
ERROR:  language "c" is not trusted
HINT:  Only superusers may use untrusted languages.
SET SESSION AUTHORIZATION regressuser1;
GRANT USAGE ON LANGUAGE sql TO regressuser2; -- fail
WARNING:  no privileges were granted
CREATE FUNCTION testfunc1(int) RETURNS int AS 'select 2 * $1;' LANGUAGE sql;
CREATE FUNCTION testfunc2(int) RETURNS int AS 'select 3 * $1;' LANGUAGE sql;
REVOKE ALL ON FUNCTION testfunc1(int), testfunc2(int) FROM PUBLIC;
GRANT EXECUTE ON FUNCTION testfunc1(int), testfunc2(int) TO regressuser2;
GRANT USAGE ON FUNCTION testfunc1(int) TO regressuser3; -- semantic error
ERROR:  invalid privilege type USAGE for function
GRANT ALL PRIVILEGES ON FUNCTION testfunc1(int) TO regressuser4;
GRANT ALL PRIVILEGES ON FUNCTION testfunc_nosuch(int) TO regressuser4;
ERROR:  function testfunc_nosuch(integer) does not exist
CREATE FUNCTION testfunc4(boolean) RETURNS text
  AS 'select col1 from atest2 where col2 = $1;'
  LANGUAGE sql SECURITY DEFINER;
GRANT EXECUTE ON FUNCTION testfunc4(boolean) TO regressuser3;
SET SESSION AUTHORIZATION regressuser2;
SELECT testfunc1(5), testfunc2(5); -- ok
 testfunc1 | testfunc2 
-----------+-----------
        10 |        15
(1 row)

CREATE FUNCTION testfunc3(int) RETURNS int AS 'select 2 * $1;' LANGUAGE sql; -- fail
ERROR:  permission denied for language sql
SET SESSION AUTHORIZATION regressuser3;
SELECT testfunc1(5); -- fail
ERROR:  permission denied for function testfunc1
SELECT col1 FROM atest2 WHERE col2 = true; -- fail
ERROR:  permission denied for relation atest2
SELECT testfunc4(true); -- ok
 testfunc4 
-----------
 bar
(1 row)

SET SESSION AUTHORIZATION regressuser4;
SELECT testfunc1(5); -- ok
 testfunc1 
-----------
        10
(1 row)

DROP FUNCTION testfunc1(int); -- fail
ERROR:  must be owner of function testfunc1
\c -
DROP FUNCTION testfunc1(int); -- ok
-- restore to sanity
GRANT ALL PRIVILEGES ON LANGUAGE sql TO PUBLIC;
-- has_table_privilege function
-- bad-input checks
select has_table_privilege(NULL,'pg_authid','select');
 has_table_privilege 
---------------------
 
(1 row)

select has_table_privilege('pg_shad','select');
ERROR:  relation "pg_shad" does not exist
select has_table_privilege('nosuchuser','pg_authid','select');
ERROR:  role "nosuchuser" does not exist
select has_table_privilege('pg_authid','sel');
ERROR:  unrecognized privilege type: "sel"
select has_table_privilege(-999999,'pg_authid','update');
ERROR:  role with OID 4293967297 does not exist
select has_table_privilege(1,'rule');
ERROR:  relation with OID 1 does not exist
-- superuser
\c -
select has_table_privilege(current_user,'pg_authid','select');
 has_table_privilege 
---------------------
 t
(1 row)

select has_table_privilege(current_user,'pg_authid','insert');
 has_table_privilege 
---------------------