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.

#ifndef __MCABBER_CARBONS_H__
#define __MCABBER_CARBONS_H__ 1

#include <glib.h>

void carbons_available();
void carbons_enable();
void carbons_disable();
void carbons_info();
void carbons_reset();
gboolean carbons_enabled();

#endif //__MCABBER_CARBONS_H__