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fix [#34423] Foreach_get crash for any non existant attribute

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also improve exception messages.
This commit is contained in:
Campbell Barton
2013-02-26 00:31:36 +00:00
parent fcac25e08d
commit a62eeb9d8f
1 changed files with 26 additions and 7 deletions
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29
source/blender/python/intern/bpy_rna.c
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@@ -4257,11 +4257,12 @@ static PyObject *pyrna_prop_collection_find(BPy_PropertyRNA *self, PyObject *key
return PyLong_FromLong(index);
}
static void foreach_attr_type(BPy_PropertyRNA *self, const char *attr,
static bool foreach_attr_type(BPy_PropertyRNA *self, const char *attr,
/* values to assign */
RawPropertyType *raw_type, int *attr_tot, bool *attr_signed)
{
PropertyRNA *prop;
bool attr_ok = true;
*raw_type = PROP_RAW_UNSET;
*attr_tot = 0;
*attr_signed = false;
@@ -4270,12 +4271,19 @@ static void foreach_attr_type(BPy_PropertyRNA *self, const char *attr,
RNA_PROP_BEGIN (&self->ptr, itemptr, self->prop)
{
prop = RNA_struct_find_property(&itemptr, attr);
if (prop) {
*raw_type = RNA_property_raw_type(prop);
*attr_tot = RNA_property_array_length(&itemptr, prop);
*attr_signed = (RNA_property_subtype(prop) == PROP_UNSIGNED) ? false : true;
*attr_signed = (RNA_property_subtype(prop) != PROP_UNSIGNED);
}
else {
attr_ok = false;
}
break;
}
RNA_PROP_END;
return attr_ok;
}
/* pyrna_prop_collection_foreach_get/set both use this */
@@ -4295,15 +4303,26 @@ static int foreach_parse_args(BPy_PropertyRNA *self, PyObject *args,
*attr_signed = false;
*raw_type = PROP_RAW_UNSET;
if (!PyArg_ParseTuple(args, "sO", attr, seq) || (!PySequence_Check(*seq) && PyObject_CheckBuffer(*seq))) {
PyErr_SetString(PyExc_TypeError, "foreach_get(attr, sequence) expects a string and a sequence");
if (!PyArg_ParseTuple(args, "sO:foreach_get/set", attr, seq)) {
return -1;
}
if (!PySequence_Check(*seq) && PyObject_CheckBuffer(*seq)) {
PyErr_Format(PyExc_TypeError,
"foreach_get/set expected second argument to be a sequence or buffer, not a %.200s",
Py_TYPE(seq)->tp_name);
return -1;
}
*tot = PySequence_Size(*seq); /* TODO - buffer may not be a sequence! array.array() is tho. */
if (*tot > 0) {
foreach_attr_type(self, *attr, raw_type, attr_tot, attr_signed);
if (!foreach_attr_type(self, *attr, raw_type, attr_tot, attr_signed)) {
PyErr_Format(PyExc_AttributeError,
"foreach_get/set '%.200s.%200s[...]' elements have no attribute '%.200s'",
RNA_struct_identifier(self->ptr.type), RNA_property_identifier(self->prop), *attr);
return -1;
}
*size = RNA_raw_type_sizeof(*raw_type);
#if 0 /* works fine but not strictly needed, we could allow RNA_property_collection_raw_* to do the checks */