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Prevent ALTER USER f RESET ALL from removing the settings that were put there

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by a superuser -- "ALTER USER f RESET setting" already disallows removing such a
setting.

Apply the same treatment to ALTER DATABASE d RESET ALL when run by a database
owner that's not superuser.
This commit is contained in:
Alvaro Herrera
2010-03-25 14:44:51 +00:00
parent 505efe9917
commit 08729b4e8a
4 changed files with 134 additions and 10 deletions
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29
src/backend/commands/user.c
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@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/commands/user.c,v 1.187 2009/06/11 14:48:56 momjian Exp $
* $PostgreSQL: pgsql/src/backend/commands/user.c,v 1.187.2.1 2010/03/25 14:44:51 alvherre Exp $
*
*-------------------------------------------------------------------------
*/
@ -772,9 +772,30 @@ AlterRoleSet(AlterRoleSetStmt *stmt)
if (stmt->setstmt->kind == VAR_RESET_ALL)
{
/* RESET ALL, so just set rolconfig to null */
repl_null[Anum_pg_authid_rolconfig - 1] = true;
repl_val[Anum_pg_authid_rolconfig - 1] = (Datum) 0;
ArrayType *new = NULL;
Datum datum;
bool isnull;
/*
* in RESET ALL, request GUC to reset the settings array; if none
* left, we can set rolconfig to null; otherwise use the returned
* array
*/
datum = SysCacheGetAttr(AUTHNAME, oldtuple,
Anum_pg_authid_rolconfig, &isnull);
if (!isnull)
new = GUCArrayReset(DatumGetArrayTypeP(datum));
if (new)
{
repl_val[Anum_pg_authid_rolconfig - 1] = PointerGetDatum(new);
repl_repl[Anum_pg_authid_rolconfig - 1] = true;
repl_null[Anum_pg_authid_rolconfig - 1] = false;
}
else
{
repl_null[Anum_pg_authid_rolconfig - 1] = true;
repl_val[Anum_pg_authid_rolconfig - 1] = (Datum) 0;
}
}
else
{