Check origin of roster pushes MCabber is vulnerable to roster push attacks as described by Daniel Gultsch at https://gultsch.de/gajim_roster_push_and_message_interception.html. This patch should fix the problem by checking the sender of the iq:roster stanzas. Thanks to Sam Whited for the report.

SUBDIRS = mcabber doc modules
ACLOCAL_AMFLAGS = -I macros
if INSTALL_HEADERS
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = mcabber.pc
endif