pidgin/pidgin

Implement SNI support for the gnutls SSL plugin.
release-2.x.y
2019-12-16, Mihai Moldovan
6dba8046e1b1
Implement SNI support for the gnutls SSL plugin.

Note that gnutls is picky in regard to what it accepts as the server name - it
MUST be a domain name. IP addresses are not supported according to the
documentation.

Hence, filter out IP addresses and hope that whatever is not recognized as
such an address is actually a domain name. This will probably fail for more
exotic addresses (especially in IPv6 realm), but wiring up a full-blown parser
is too much effort and SSL plugins are not part of purple-3 anyway.

Fixes #17300
/**
* @file disco.h Jabber Service Discovery
*
* purple
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#ifndef PURPLE_JABBER_DISCO_H_
#define PURPLE_JABBER_DISCO_H_
#include "jabber.h"
typedef struct _JabberDiscoItem {
const char *jid; /* MUST */
const char *node; /* SHOULD */
const char *name; /* MAY */
} JabberDiscoItem;
typedef void (JabberDiscoInfoCallback)(JabberStream *js, const char *who,
JabberCapabilities capabilities, gpointer data);
typedef void (JabberDiscoItemsCallback)(JabberStream *js, const char *jid,
const char *node, GSList *items, gpointer data);
void jabber_disco_info_parse(JabberStream *js, const char *from,
JabberIqType type, const char *id, xmlnode *in_query);
void jabber_disco_items_parse(JabberStream *js, const char *from,
JabberIqType type, const char *id, xmlnode *query);
void jabber_disco_items_server(JabberStream *js);
void jabber_disco_info_do(JabberStream *js, const char *who,
JabberDiscoInfoCallback *callback, gpointer data);
#endif /* PURPLE_JABBER_DISCO_H_ */