Fix T76538: Prevent nodesocket creation on certain nodes

- no sockets on Frame nodes
- no Input sockets on Group Input nodes
- no Output sockets on Group Output nodes

Maniphest Tasks: T76538

Differential Revision: https://developer.blender.org/D7671

1 files changed, 9 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_nodetree.c b/source/blender/makesrna/intern/rna_nodetree.c
index 71b3f1ee94b..5be3db37329 100644
--- a/source/blender/makesrna/intern/rna_nodetree.c
+++ b/source/blender/makesrna/intern/rna_nodetree.c
@@ -1893,6 +1893,11 @@ static bNodeSocket *rna_Node_inputs_new(ID *id,
                                         const char *name,
                                         const char *identifier)
 {
+
+  if (ELEM(node->type, NODE_GROUP_INPUT, NODE_FRAME)) {
+    BKE_report(reports, RPT_ERROR, "Unable to create socket");
+    return NULL;
+  }
   /* Adding an input to a group node is not working,
    * simpler to add it to its underlying nodetree. */
   if (ELEM(node->type, NODE_GROUP, NODE_CUSTOM_GROUP) && node->id != NULL) {
@@ -1923,6 +1928,10 @@ static bNodeSocket *rna_Node_outputs_new(ID *id,
                                          const char *name,
                                          const char *identifier)
 {
+  if (ELEM(node->type, NODE_GROUP_OUTPUT, NODE_FRAME)) {
+    BKE_report(reports, RPT_ERROR, "Unable to create socket");
+    return NULL;
+  }
   /* Adding an output to a group node is not working,
    * simpler to add it to its underlying nodetree. */
   if (ELEM(node->type, NODE_GROUP, NODE_CUSTOM_GROUP) && node->id != NULL) {