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/*
* Remmina - The GTK+ Remote Desktop Client
* Copyright (C) 2016-2023 Antenore Gatta
*
* 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 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. * If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. * If you
* do not wish to do so, delete this exception statement from your
* version. * If you delete this exception statement from all source
* files in the program, then also delete it here.
*
*/
#include "config.h"
#include "remmina_monitor.h"
#include "remmina_log.h"
#include "remmina_public.h"
#include "remmina/remmina_trace_calls.h"
RemminaMonitor *rm_monitor;
static void remmina_monitor_can_reach_cb (GNetworkMonitor *netmonitor, GAsyncResult *result, RemminaMonitor *monitor)
{
g_autoptr (GError) error = NULL;
gchar *status = NULL;
gboolean is_reachable = g_network_monitor_can_reach_finish (netmonitor, result, &error);
const gchar *addr_tostr = g_strdup(g_socket_connectable_to_string (monitor->addr));
//gchar *value = (gchar *)g_hash_table_lookup (monitor->server_status, addr_tostr);
if (is_reachable) {
REMMINA_DEBUG ("Network object %s is reachable", g_socket_connectable_to_string (monitor->addr));
status = g_strdup ("online");
} else {
REMMINA_DEBUG ("Network object %s is not reachable", g_socket_connectable_to_string (monitor->addr));
status = g_strdup ("offline");
}
if (g_hash_table_replace (monitor->server_status, g_strdup(addr_tostr), g_strdup(status))) {
REMMINA_DEBUG ("Inserting %s -> %s", addr_tostr, status);
} else {
REMMINA_DEBUG ("Replacing %s -> %s", addr_tostr, status);
}
/* Cannot use remminafile here because is freed by remmina_file_manager_iterate */
//if (remminafile)
//remmina_file_set_state_int (remminafile, "reachable", reachable);
g_free (status);
}
gchar *remmina_monitor_can_reach(RemminaFile *remminafile, RemminaMonitor *monitor)
{
TRACE_CALL(__func__);
const gchar *server;
const gchar *ssh_tunnel_server;
const gchar *addr_tostr = NULL;
gchar *status = NULL;
gchar *ssh_tunnel_host, *srv_host;
gint netmonit, srv_port, ssh_tunnel_port;
const gchar *protocol;
gint default_port = 0;
if (!remminafile) {
status = g_strdup ("I/O Error");
REMMINA_DEBUG (status);
return NULL;
}
netmonit = remmina_file_get_int(remminafile, "enable-netmonit", FALSE);
if (!netmonit) {
status = g_strdup ("Monitoring disabled");
REMMINA_DEBUG (status);
return NULL;
}
protocol = remmina_file_get_string (remminafile, "protocol");
if (protocol && protocol[0] != '\0') {
REMMINA_DEBUG ("Evaluating protocol %s for monitoring", protocol);
if (g_strcmp0("RDP", protocol) == 0)
default_port = 3389;
if (g_strcmp0("VNC", protocol) == 0)
default_port = 5900;
if (g_strcmp0("GVNC", protocol) == 0)
default_port = 5900;
if (g_strcmp0("SPICE", protocol) == 0)
default_port = 5900;
if (g_strcmp0("WWW", protocol) == 0)
default_port = 443;
if (g_strcmp0("X2GO", protocol) == 0)
default_port = 22;
if (g_strcmp0("SSH", protocol) == 0)
default_port = 22;
if (g_strcmp0("SFTP", protocol) == 0)
default_port = 22;
if (g_strcmp0("EXEC", protocol) == 0)
default_port = -1;
if (default_port == 0) {
status = g_strdup ("Unknown protocol");
REMMINA_DEBUG (status);
return NULL;
}
if (default_port < 0) {
status = g_strdup ("Cannot monitor");
REMMINA_DEBUG (status);
return NULL;
}
ssh_tunnel_server = remmina_file_get_string(remminafile, "ssh_tunnel_server");
if (remmina_file_get_int(remminafile, "ssh_tunnel_enabled", FALSE)) {
remmina_public_get_server_port(ssh_tunnel_server, 22, &ssh_tunnel_host, &ssh_tunnel_port);
monitor->addr = g_network_address_new (ssh_tunnel_host, ssh_tunnel_port);
g_free(ssh_tunnel_host), ssh_tunnel_host = NULL;
} else {
server = remmina_file_get_string(remminafile, "server");
remmina_public_get_server_port(server, default_port, &srv_host, &srv_port);
monitor->addr = g_network_address_new (srv_host, srv_port);
g_free(srv_host), srv_host = NULL;
}
addr_tostr = g_strdup(g_socket_connectable_to_string (monitor->addr));
REMMINA_DEBUG ("addr is %s", addr_tostr);
if (monitor->connected && netmonit) {
REMMINA_DEBUG ("Testing for %s", addr_tostr);
g_network_monitor_can_reach_async (
monitor->netmonitor,
monitor->addr,
NULL,
(GAsyncReadyCallback) remmina_monitor_can_reach_cb,
monitor);
}
status = (gchar *)g_hash_table_lookup (monitor->server_status, addr_tostr);
//if (!status)
//g_hash_table_insert (monitor->server_status, g_strdup(addr_tostr), "offline");
}
if (!status) {
return g_strdup(addr_tostr);
} else
return status;
//g_free(ssh_tunnel_host), ssh_tunnel_host = NULL;
//g_free(srv_host), srv_host = NULL;
//g_free(dest), dest = NULL;
}
gboolean remmina_network_monitor_status (RemminaMonitor *rm_monitor)
{
TRACE_CALL(__func__);
gboolean status = g_network_monitor_get_connectivity (rm_monitor->netmonitor);
rm_monitor->server_status = g_hash_table_new_full(
g_str_hash,
g_str_equal,
(GDestroyNotify)g_free,
(GDestroyNotify)g_free);
switch (status)
{
case G_NETWORK_CONNECTIVITY_LOCAL:
REMMINA_DEBUG ("G_NETWORK_CONNECTIVITY_LOCAL");
rm_monitor->connected = FALSE;
break;
case G_NETWORK_CONNECTIVITY_LIMITED:
REMMINA_DEBUG ("G_NETWORK_CONNECTIVITY_LIMITED");
rm_monitor->connected = FALSE;
break;
case G_NETWORK_CONNECTIVITY_PORTAL:
REMMINA_DEBUG ("G_NETWORK_CONNECTIVITY_PORTAL");
rm_monitor->connected = FALSE;
break;
case G_NETWORK_CONNECTIVITY_FULL:
REMMINA_DEBUG ("G_NETWORK_CONNECTIVITY_FULL");
rm_monitor->connected = TRUE;
break;
}
return status;
}
RemminaMonitor *remmina_network_monitor_new ()
{
TRACE_CALL(__func__);
rm_monitor = g_new0(RemminaMonitor, 1);
rm_monitor->netmonitor = g_network_monitor_get_default ();
return rm_monitor;
}
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