From f3c2a6af3455b2882e28570e8a04f1c2d4500d5b Mon Sep 17 00:00:00 2001
From: Jakub Filak <jfilak@redhat.com>
Date: Mon, 27 Apr 2015 07:52:00 +0200
Subject: [ABRT PATCH] dbus: report invalid element names

Return D-Bus error in case of invalid problem element name.

Related: #1214451

Signed-off-by: Jakub Filak <jfilak@redhat.com>
---
 src/dbus/abrt-dbus.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/dbus/abrt-dbus.c b/src/dbus/abrt-dbus.c
index 9e1844a..6de15e9 100644
--- a/src/dbus/abrt-dbus.c
+++ b/src/dbus/abrt-dbus.c
@@ -599,7 +599,7 @@ static void handle_method_call(GDBusConnection *connection,
 
         g_variant_get(parameters, "(&s&s&s)", &problem_id, &element, &value);
 
-        if (element == NULL || element[0] == '\0' || strlen(element) > 64)
+        if (!str_is_correct_filename(element))
         {
             log_notice("'%s' is not a valid element name of '%s'", element, problem_id);
             char *error = xasprintf(_("'%s' is not a valid element name"), element);
@@ -658,6 +658,18 @@ static void handle_method_call(GDBusConnection *connection,
 
         g_variant_get(parameters, "(&s&s)", &problem_id, &element);
 
+        if (!str_is_correct_filename(element))
+        {
+            log_notice("'%s' is not a valid element name of '%s'", element, problem_id);
+            char *error = xasprintf(_("'%s' is not a valid element name"), element);
+            g_dbus_method_invocation_return_dbus_error(invocation,
+                                              "org.freedesktop.problems.InvalidElement",
+                                              error);
+
+            free(error);
+            return;
+        }
+
         struct dump_dir *dd = open_directory_for_modification_of_element(
                                     invocation, caller_uid, problem_id, element);
         if (!dd)
-- 
1.8.3.1