Refactor recordExtObjInitPriv()

Instead of half a dozen of mostly-duplicate conditional branches,
write one common one that can handle most catalogs.  We already have
all the information we need, such as which system catalog corresponds
to which catalog table and which column is the ACL column.

Reviewed-by: Nathan Bossart <[email protected]>
Discussion: https://www.postgresql.org/message-id/flat/504bc485-6bd6-dd1b-fe10-e7351aeb310d@enterprisedb.com

diff --git a/src/backend/catalog/aclchk.c b/src/backend/catalog/aclchk.c
index 7cb2faa1873e54c8c1f666e9bad992c1b4fa2f30..c4232344aab93a711bee071eced5f3a359ec90e0 100644 (file)
--- a/src/backend/catalog/aclchk.c
+++ b/src/backend/catalog/aclchk.c
@@ -4241,9 +4241,6 @@ recordDependencyOnNewAcl(Oid classId, Oid objectId, int32 objsubId,
  *
  * For the object passed in, this will record its ACL (if any) and the ACLs of
  * any sub-objects (eg: columns) into pg_init_privs.
- *
- * Any new kinds of objects which have ACLs associated with them and can be
- * added to an extension should be added to the if-else tree below.
  */
 void
 recordExtObjInitPriv(Oid objoid, Oid classoid)
@@ -4336,74 +4333,6 @@ recordExtObjInitPriv(Oid objoid, Oid classoid)
 
        ReleaseSysCache(tuple);
    }
-   /* pg_foreign_data_wrapper */
-   else if (classoid == ForeignDataWrapperRelationId)
-   {
-       Datum       aclDatum;
-       bool        isNull;
-       HeapTuple   tuple;
-
-       tuple = SearchSysCache1(FOREIGNDATAWRAPPEROID,
-                               ObjectIdGetDatum(objoid));
-       if (!HeapTupleIsValid(tuple))
-           elog(ERROR, "cache lookup failed for foreign data wrapper %u",
-                objoid);
-
-       aclDatum = SysCacheGetAttr(FOREIGNDATAWRAPPEROID, tuple,
-                                  Anum_pg_foreign_data_wrapper_fdwacl,
-                                  &isNull);
-
-       /* Add the record, if any, for the top-level object */
-       if (!isNull)
-           recordExtensionInitPrivWorker(objoid, classoid, 0,
-                                         DatumGetAclP(aclDatum));
-
-       ReleaseSysCache(tuple);
-   }
-   /* pg_foreign_server */
-   else if (classoid == ForeignServerRelationId)
-   {
-       Datum       aclDatum;
-       bool        isNull;
-       HeapTuple   tuple;
-
-       tuple = SearchSysCache1(FOREIGNSERVEROID, ObjectIdGetDatum(objoid));
-       if (!HeapTupleIsValid(tuple))
-           elog(ERROR, "cache lookup failed for foreign server %u",
-                objoid);
-
-       aclDatum = SysCacheGetAttr(FOREIGNSERVEROID, tuple,
-                                  Anum_pg_foreign_server_srvacl,
-                                  &isNull);
-
-       /* Add the record, if any, for the top-level object */
-       if (!isNull)
-           recordExtensionInitPrivWorker(objoid, classoid, 0,
-                                         DatumGetAclP(aclDatum));
-
-       ReleaseSysCache(tuple);
-   }
-   /* pg_language */
-   else if (classoid == LanguageRelationId)
-   {
-       Datum       aclDatum;
-       bool        isNull;
-       HeapTuple   tuple;
-
-       tuple = SearchSysCache1(LANGOID, ObjectIdGetDatum(objoid));
-       if (!HeapTupleIsValid(tuple))
-           elog(ERROR, "cache lookup failed for language %u", objoid);
-
-       aclDatum = SysCacheGetAttr(LANGOID, tuple, Anum_pg_language_lanacl,
-                                  &isNull);
-
-       /* Add the record, if any, for the top-level object */
-       if (!isNull)
-           recordExtensionInitPrivWorker(objoid, classoid, 0,
-                                         DatumGetAclP(aclDatum));
-
-       ReleaseSysCache(tuple);
-   }
    /* pg_largeobject_metadata */
    else if (classoid == LargeObjectMetadataRelationId)
    {
@@ -4446,60 +4375,21 @@ recordExtObjInitPriv(Oid objoid, Oid classoid)
 
        systable_endscan(scan);
    }
-   /* pg_namespace */
-   else if (classoid == NamespaceRelationId)
+   /* This will error on unsupported classoid. */
+   else if (get_object_attnum_acl(classoid) != InvalidAttrNumber)
    {
        Datum       aclDatum;
        bool        isNull;
        HeapTuple   tuple;
 
-       tuple = SearchSysCache1(NAMESPACEOID, ObjectIdGetDatum(objoid));
-       if (!HeapTupleIsValid(tuple))
-           elog(ERROR, "cache lookup failed for schema %u", objoid);
-
-       aclDatum = SysCacheGetAttr(NAMESPACEOID, tuple,
-                                  Anum_pg_namespace_nspacl, &isNull);
-
-       /* Add the record, if any, for the top-level object */
-       if (!isNull)
-           recordExtensionInitPrivWorker(objoid, classoid, 0,
-                                         DatumGetAclP(aclDatum));
-
-       ReleaseSysCache(tuple);
-   }
-   /* pg_proc */
-   else if (classoid == ProcedureRelationId)
-   {
-       Datum       aclDatum;
-       bool        isNull;
-       HeapTuple   tuple;
-
-       tuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(objoid));
-       if (!HeapTupleIsValid(tuple))
-           elog(ERROR, "cache lookup failed for function %u", objoid);
-
-       aclDatum = SysCacheGetAttr(PROCOID, tuple, Anum_pg_proc_proacl,
-                                  &isNull);
-
-       /* Add the record, if any, for the top-level object */
-       if (!isNull)
-           recordExtensionInitPrivWorker(objoid, classoid, 0,
-                                         DatumGetAclP(aclDatum));
-
-       ReleaseSysCache(tuple);
-   }
-   /* pg_type */
-   else if (classoid == TypeRelationId)
-   {
-       Datum       aclDatum;
-       bool        isNull;
-       HeapTuple   tuple;
-
-       tuple = SearchSysCache1(TYPEOID, ObjectIdGetDatum(objoid));
+       tuple = SearchSysCache1(get_object_catcache_oid(classoid),
+                               ObjectIdGetDatum(objoid));
        if (!HeapTupleIsValid(tuple))
-           elog(ERROR, "cache lookup failed for type %u", objoid);
+           elog(ERROR, "cache lookup failed for %s %u",
+                get_object_class_descr(classoid), objoid);
 
-       aclDatum = SysCacheGetAttr(TYPEOID, tuple, Anum_pg_type_typacl,
+       aclDatum = SysCacheGetAttr(get_object_catcache_oid(classoid), tuple,
+                                  get_object_attnum_acl(classoid),
                                   &isNull);
 
        /* Add the record, if any, for the top-level object */
@@ -4509,32 +4399,6 @@ recordExtObjInitPriv(Oid objoid, Oid classoid)
 
        ReleaseSysCache(tuple);
    }
-   else if (classoid == AccessMethodRelationId ||
-            classoid == CastRelationId ||
-            classoid == CollationRelationId ||
-            classoid == ConversionRelationId ||
-            classoid == EventTriggerRelationId ||
-            classoid == OperatorRelationId ||
-            classoid == OperatorClassRelationId ||
-            classoid == OperatorFamilyRelationId ||
-            classoid == TSConfigRelationId ||
-            classoid == TSDictionaryRelationId ||
-            classoid == TSParserRelationId ||
-            classoid == TSTemplateRelationId ||
-            classoid == TransformRelationId
-       )
-   {
-       /* no ACL for these object types, so do nothing. */
-   }
-
-   /*
-    * complain if we are given a class OID for a class that extensions don't
-    * support or that we don't recognize.
-    */
-   else
-   {
-       elog(ERROR, "unrecognized or unsupported class OID: %u", classoid);
-   }
 }
 
 /*