From 7a47f57975be0d285a2f20758e4572dca6d9cdd3 Mon Sep 17 00:00:00 2001
From: Jakub Filak <jfilak@redhat.com>
Date: Wed, 13 May 2015 11:10:23 +0200
Subject: [ABRT PATCH] dbus: validate parameters of all calls

SetElement and DeleteElement were missing check for valid dump directory
path.

FindProblemByElementInTimeRange was not reporting invalid element names.

Related: #1214451

Signed-off-by: Jakub Filak <jfilak@redhat.com>
---
 src/dbus/abrt-dbus.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/dbus/abrt-dbus.c b/src/dbus/abrt-dbus.c
index bef95bd..f2f742b 100644
--- a/src/dbus/abrt-dbus.c
+++ b/src/dbus/abrt-dbus.c
@@ -607,6 +607,12 @@ static void handle_method_call(GDBusConnection *connection,
 
         g_variant_get(parameters, "(&s&s&s)", &problem_id, &element, &value);
 
+        if (!allowed_problem_dir(problem_id))
+        {
+            return_InvalidProblemDir_error(invocation, problem_id);
+            return;
+        }
+
         if (!str_is_correct_filename(element))
         {
             log_notice("'%s' is not a valid element name of '%s'", element, problem_id);
@@ -666,6 +672,12 @@ static void handle_method_call(GDBusConnection *connection,
 
         g_variant_get(parameters, "(&s&s)", &problem_id, &element);
 
+        if (!allowed_problem_dir(problem_id))
+        {
+            return_InvalidProblemDir_error(invocation, problem_id);
+            return;
+        }
+
         if (!str_is_correct_filename(element))
         {
             log_notice("'%s' is not a valid element name of '%s'", element, problem_id);
@@ -783,6 +795,18 @@ static void handle_method_call(GDBusConnection *connection,
         g_variant_get_child(parameters, 3, "x", &timestamp_to);
         g_variant_get_child(parameters, 4, "b", &all);
 
+        if (!str_is_correct_filename(element))
+        {
+            log_notice("'%s' is not a valid element name", element);
+            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;
+        }
+
         if (all && polkit_check_authorization_dname(caller, "org.freedesktop.problems.getall") == PolkitYes)
             caller_uid = 0;
 
-- 
1.8.3.1