Allow individual settings to be locked down

This allows a site admin who pregenerates configs to mark certain
settings as untouchable, ensuring that users cannot mess up their
settings too badly.

1 files changed, 11 insertions, 0 deletions

diff --git a/storage_xml.c b/storage_xml.c
index 107983cf..dbdd151d 100644
--- a/storage_xml.c
+++ b/storage_xml.c
@@ -64,9 +64,11 @@ static void xml_init(void)
 static void handle_settings(struct xt_node *node, set_t **head)
 {
 	struct xt_node *c;
+	struct set *s;
 
 	for (c = node->children; (c = xt_find_node(c, "setting")); c = c->next) {
 		char *name = xt_find_attr(c, "name");
+		char *locked = xt_find_attr(c, "locked");
 
 		if (!name) {
 			continue;
@@ -79,6 +81,12 @@ static void handle_settings(struct xt_node *node, set_t **head)
 			}
 		}
 		set_setstr(head, name, c->text);
+		if (locked && !g_strcasecmp(locked, "true")) {
+			s = set_find(head, name);
+			if (s) {
+				s->flags |= SET_LOCKED;
+			}
+		}
 	}
 }
 
@@ -370,6 +378,9 @@ static void xml_generate_settings(struct xt_node *cur, set_t **head)
 			struct xt_node *xset;
 			xt_add_child(cur, xset = xt_new_node("setting", set->value, NULL));
 			xt_add_attr(xset, "name", set->key);
+			if (set->flags & SET_LOCKED) {
+				xt_add_attr(xset, "locked", "true");
+			}
 		}
 	}
 }