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 gntrequest.h GNT Request API
* @ingroup finch
*/
/* finch
*
* Finch 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 _GNT_REQUEST_H
#define _GNT_REQUEST_H
#include "request.h"
#include "gnt.h"
/**********************************************************************
* @name GNT Request API
**********************************************************************/
/*@{*/
/**
* Get the ui-functions.
*
* @return The PurpleRequestUiOps structure populated with the appropriate functions.
*/
PurpleRequestUiOps *finch_request_get_ui_ops(void);
/**
* Perform necessary initializations.
*/
void finch_request_init(void);
/**
* Perform necessary uninitializations.
*/
void finch_request_uninit(void);
/**
* Save the request fields in preferences where the id attribute of each field is the
* id of a preference.
*/
void finch_request_save_in_prefs(gpointer null, PurpleRequestFields *fields);
/**
* Create a widget field for a request-field.
*
* @param field The request field.
*
* @return A GntWidget for the request field.
* @since 2.4.0
*/
GntWidget *finch_request_field_get_widget(PurpleRequestField *field);
/*@}*/
#endif