Fix D-Bus disconnection when an object path was overly long

0001-flatpak-proxy-Fix-D-Bus-disconnection-with-overly-lo.patch

@@ -0,0 +1,37 @@
+From dea3530414f8d118e64f8ae408eb19f479abc082 Mon Sep 17 00:00:00 2001
+From: Bastien Nocera <hadess@hadess.net>
+Date: Thu, 20 Jul 2023 14:48:41 +0200
+Subject: [PATCH] flatpak-proxy: Fix D-Bus disconnection with overly long
+ object paths
+
+According to the D-Bus specifications:
+https://dbus.freedesktop.org/doc/dbus-specification.html#id-1.4.4
+For the STRING and OBJECT_PATH types, [the data length] is encoded in 4
+bytes (a UINT32).
+
+But the code was trying to parse the 32-bit integer as an 8-bit one,
+meaning that, as was the case with object paths created by the dLeyna
+project, a 259-byte long string would be parsed like a 3-byte long
+one.
+
+Fixes: 004b7b2ca0e9 ("Parse dbus headers") in flatpak
+---
+ flatpak-proxy.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/flatpak-proxy.c b/flatpak-proxy.c
+index 48781560c8bc..47e51df3df40 100644
+--- a/flatpak-proxy.c
++++ b/flatpak-proxy.c
+@@ -1116,7 +1116,7 @@ get_signature (Buffer *buffer, guint32 *offset, guint32 end_offset)
+ static const char *
+ get_string (Buffer *buffer, Header *header, guint32 *offset, guint32 end_offset)
+ {
+-  guint8 len;
++  guint32 len;
+   char *str;
+ 
+   *offset = align_by_4 (*offset);
+-- 
+2.41.0
+

xdg-dbus-proxy.spec

@@ -1,6 +1,6 @@
 Name:           xdg-dbus-proxy
 Version:        0.1.4
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Filtering proxy for D-Bus connections
 
 License:        LGPLv2+
@@ -17,6 +17,9 @@ BuildRequires:  /usr/bin/xsltproc
 
 Requires:       dbus
 
+# https://github.com/flatpak/xdg-dbus-proxy/pull/50
+Patch0: 0001-flatpak-proxy-Fix-D-Bus-disconnection-with-overly-lo.patch
+
 %description
 xdg-dbus-proxy is a filtering proxy for D-Bus connections. It was originally
 part of the flatpak project, but it has been broken out as a standalone module
@@ -38,6 +41,9 @@ to facilitate using it in other contexts.
 %{_mandir}/man1/xdg-dbus-proxy.1*
 
 %changelog
+* Wed Jul 19 2023 Bastien Nocera <bnocera@redhat.com> - 0.1.4-2
+- Fix D-Bus disconnection when an object path was overly long
+
 * Wed Jul 19 2023 Bastien Nocera <bnocera@redhat.com> - 0.1.4-1
 - Update to 0.1.4