rpcd: support "files" attribute in menu json files to make menu entries depend on...

diff --git a/luci2/src/rpcd/luci2.c b/luci2/src/rpcd/luci2.c
index 3dc7b9e06afaa68dac25be7633a72dd6d1e320da..cc7423ddb69ea63520057c5d0b724869cde3b36a 100644 (file)
--- a/luci2/src/rpcd/luci2.c
+++ b/luci2/src/rpcd/luci2.c
@@ -2562,6 +2562,30 @@ menu_access(struct blob_attr *sid, struct blob_attr *acls, struct blob_buf *e)
        return rv;
 }
 
+static bool
+menu_files(struct blob_attr *files)
+{
+       int rem;
+       bool empty = true;
+       struct stat s;
+       struct blob_attr *file;
+
+       blobmsg_for_each_attr(file, files, rem)
+       {
+               empty = false;
+
+               if (blobmsg_type(file) != BLOBMSG_TYPE_STRING)
+                       continue;
+
+               if (stat(blobmsg_get_string(file), &s) || !S_ISREG(s.st_mode))
+                       continue;
+
+               return true;
+       }
+
+       return empty;
+}
+
 static int
 rpc_luci2_ui_menu(struct ubus_context *ctx, struct ubus_object *obj,
                   struct ubus_request_data *req, const char *method,
@@ -2573,7 +2597,7 @@ rpc_luci2_ui_menu(struct ubus_context *ctx, struct ubus_object *obj,
        struct blob_buf item = { 0 };
        struct blob_attr *entry, *attr;
        struct blob_attr *tb[__RPC_MENU_MAX];
-       bool access;
+       bool access, files;
        void *c, *d;
 
        blobmsg_parse(rpc_menu_policy, __RPC_MENU_MAX, tb,
@@ -2597,7 +2621,7 @@ rpc_luci2_ui_menu(struct ubus_context *ctx, struct ubus_object *obj,
 
                        blob_for_each_attr(entry, menu.head, rem)
                        {
-                               access = true;
+                               access = files = true;
 
                                blob_buf_init(&item, 0);
                                d = blobmsg_open_table(&item, blobmsg_name(entry));
@@ -2607,13 +2631,16 @@ rpc_luci2_ui_menu(struct ubus_context *ctx, struct ubus_object *obj,
                                        if (blob_id(attr) == BLOBMSG_TYPE_ARRAY &&
                                            !strcmp(blobmsg_name(attr), "acls"))
                                                access = menu_access(tb[RPC_MENU_SESSION], attr, &item);
+                                       else if (blob_id(attr) == BLOBMSG_TYPE_ARRAY &&
+                                                !strcmp(blobmsg_name(attr), "files"))
+                                               files = menu_files(attr);
                                        else
                                                blobmsg_add_blob(&item, attr);
                                }
 
                                blobmsg_close_table(&item, d);
 
-                               if (access)
+                               if (access && files)
                                        blob_for_each_attr(attr, item.head, rem2)
                                                blobmsg_add_blob(&buf, attr);