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Restrict pg_relation_size to relation owner, pg_database_size to DB owner, 

and pg_tablespace_size to superusers.  Perhaps we could weaken the first
case to just require SELECT privilege, but that doesn't work for the
other cases, so use ownership as the common concept.
This commit is contained in:
Tom Lane 2007-08-27 01:19:14 +00:00
parent 741e952b54
commit cc26599b72
1 changed files with 37 additions and 1 deletions
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38
src/backend/utils/adt/dbsize.c
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@ -5,7 +5,7 @@
* Copyright (c) 2002-2007, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/dbsize.c,v 1.12 2007/03/11 05:22:00 alvherre Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/dbsize.c,v 1.13 2007/08/27 01:19:14 tgl Exp $
*
*/
@ -22,6 +22,7 @@
#include "commands/tablespace.h"
#include "miscadmin.h"
#include "storage/fd.h"
#include "utils/acl.h"
#include "utils/builtins.h"
#include "utils/syscache.h"
#include "utils/relcache.h"
@ -121,6 +122,10 @@ pg_database_size_oid(PG_FUNCTION_ARGS)
{
Oid dbOid = PG_GETARG_OID(0);
if (!pg_database_ownercheck(dbOid, GetUserId()))
aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_DATABASE,
get_database_name(dbOid));
PG_RETURN_INT64(calculate_database_size(dbOid));
}
@ -136,6 +141,10 @@ pg_database_size_name(PG_FUNCTION_ARGS)
errmsg("database \"%s\" does not exist",
NameStr(*dbName))));
if (!pg_database_ownercheck(dbOid, GetUserId()))
aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_DATABASE,
NameStr(*dbName));
PG_RETURN_INT64(calculate_database_size(dbOid));
}
@ -203,6 +212,11 @@ pg_tablespace_size_oid(PG_FUNCTION_ARGS)
{
Oid tblspcOid = PG_GETARG_OID(0);
if (!superuser())
ereport(ERROR,
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
(errmsg("must be superuser to use pg_tablespace_size"))));
PG_RETURN_INT64(calculate_tablespace_size(tblspcOid));
}
@ -212,6 +226,11 @@ pg_tablespace_size_name(PG_FUNCTION_ARGS)
Name tblspcName = PG_GETARG_NAME(0);
Oid tblspcOid = get_tablespace_oid(NameStr(*tblspcName));
if (!superuser())
ereport(ERROR,
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
(errmsg("must be superuser to use pg_tablespace_size"))));
if (!OidIsValid(tblspcOid))
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_OBJECT),
@ -270,6 +289,10 @@ pg_relation_size_oid(PG_FUNCTION_ARGS)
rel = relation_open(relOid, AccessShareLock);
if (!pg_class_ownercheck(RelationGetRelid(rel), GetUserId()))
aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_CLASS,
RelationGetRelationName(rel));
size = calculate_relation_size(&(rel->rd_node));
relation_close(rel, AccessShareLock);
@ -288,6 +311,10 @@ pg_relation_size_name(PG_FUNCTION_ARGS)
relrv = makeRangeVarFromNameList(textToQualifiedNameList(relname));
rel = relation_openrv(relrv, AccessShareLock);
if (!pg_class_ownercheck(RelationGetRelid(rel), GetUserId()))
aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_CLASS,
RelationGetRelationName(rel));
size = calculate_relation_size(&(rel->rd_node));
relation_close(rel, AccessShareLock);
@ -309,6 +336,11 @@ calculate_total_relation_size(Oid Relid)
ListCell *cell;
heapRel = relation_open(Relid, AccessShareLock);
if (!pg_class_ownercheck(RelationGetRelid(heapRel), GetUserId()))
aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_CLASS,
RelationGetRelationName(heapRel));
toastOid = heapRel->rd_rel->reltoastrelid;
/* Get the heap size */
@ -348,6 +380,8 @@ pg_total_relation_size_oid(PG_FUNCTION_ARGS)
{
Oid relid = PG_GETARG_OID(0);
/* permission check is inside calculate_total_relation_size */
PG_RETURN_INT64(calculate_total_relation_size(relid));
}
@ -361,6 +395,8 @@ pg_total_relation_size_name(PG_FUNCTION_ARGS)
relrv = makeRangeVarFromNameList(textToQualifiedNameList(relname));
relid = RangeVarGetRelid(relrv, false);
/* permission check is inside calculate_total_relation_size */
PG_RETURN_INT64(calculate_total_relation_size(relid));
}