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#include <glib-unix.h>
#include <glib.h>
#include <libgupnp/gupnp.h>
#include <iso646.h>
void
on_variable_notify (GUPnPServiceProxy *proxy,
const char *variable,
GValue *value,
gpointer user_data)
{
g_autoptr (GDateTime) dt = g_date_time_new_now_local ();
g_autofree char *timestr = g_date_time_format_iso8601 (dt);
g_auto (GValue) v = G_VALUE_INIT;
g_value_init (&v, G_TYPE_STRING);
g_value_transform (value, &v);
g_print ("%s|%s|%s|%s|%s\n",
timestr,
gupnp_service_info_get_udn (GUPNP_SERVICE_INFO (user_data)),
gupnp_service_info_get_id (GUPNP_SERVICE_INFO (user_data)),
variable,
g_value_get_string (&v));
}
void
on_introspection (GObject *source, GAsyncResult *res, gpointer user_data)
{
g_autoptr (GError) error = NULL;
g_autoptr (GUPnPServiceIntrospection) is =
gupnp_service_info_introspect_finish (
GUPNP_SERVICE_INFO (source),
res,
&error);
g_autofree char *id =
gupnp_service_info_get_id (GUPNP_SERVICE_INFO (source));
if (error != NULL) {
g_warning ("Failed to introspect service proxy %s: %s",
id,
error->message);
return;
} else {
g_info ("Got introspection for %s", id);
}
const GList *state_variables =
gupnp_service_introspection_list_state_variables (is);
for (const GList *it = state_variables; it != NULL;
it = g_list_next (it)) {
GUPnPServiceStateVariableInfo *info = it->data;
if (not info->send_events)
continue;
g_info ("Subscribing to %s (type: %s)",
info->name,
g_type_name (info->type));
gupnp_service_proxy_add_notify (GUPNP_SERVICE_PROXY (source),
info->name,
info->type,
on_variable_notify,
source);
}
}
void
subscribe_to_proxy (GUPnPServiceProxy *sp, gpointer user_data)
{
g_object_ref (sp);
g_autofree char *id =
gupnp_service_info_get_id (GUPNP_SERVICE_INFO (sp));
g_info ("Found new service proxy %s", id);
gupnp_service_info_introspect_async (GUPNP_SERVICE_INFO (sp),
NULL,
on_introspection,
NULL);
gupnp_service_proxy_set_subscribed (sp, TRUE);
}
void
on_proxy_available (GUPnPControlPoint *cp,
GUPnPDeviceProxy *dp,
gpointer user_data)
{
g_autofree char *id =
gupnp_device_info_get_friendly_name (GUPNP_DEVICE_INFO (dp));
g_info ("New device %s, type %s at %s",
id,
gupnp_device_info_get_device_type (GUPNP_DEVICE_INFO (dp)),
gupnp_device_info_get_location (GUPNP_DEVICE_INFO (dp)));
GList *services =
gupnp_device_info_list_services (GUPNP_DEVICE_INFO (dp));
g_list_foreach ((GList *) services, (GFunc) subscribe_to_proxy, NULL);
// Shallow-free the list, so we keep a reference to each service
g_list_free_full (services, (GDestroyNotify) g_object_unref);
g_object_ref (dp);
}
void
on_proxy_unavailable (GUPnPControlPoint *cp,
GUPnPDeviceProxy *dp,
gpointer user_data)
{
g_autofree char *id =
gupnp_device_info_get_friendly_name (GUPNP_DEVICE_INFO (dp));
g_info ("Lost service proxy %s", id);
// Dropping the reference we added in on_proxy_available
g_object_unref (dp);
}
void
on_context_available (GUPnPContextManager *cm,
GUPnPContext *ctx,
gpointer user_data)
{
g_info ("New context: %s",
gssdp_client_get_host_ip (GSSDP_CLIENT (ctx)));
g_autoptr (GUPnPControlPoint) cp =
gupnp_control_point_new (ctx, "upnp:rootdevice");
g_signal_connect (cp,
"device-proxy-available",
G_CALLBACK (on_proxy_available),
NULL);
g_signal_connect (cp,
"device-proxy-unavailable",
G_CALLBACK (on_proxy_unavailable),
NULL);
gssdp_resource_browser_set_active (GSSDP_RESOURCE_BROWSER (cp), TRUE);
gupnp_context_manager_manage_control_point (cm, cp);
}
void
on_context_unavailable (GUPnPContextManager *cm,
GUPnPContext *ctx,
gpointer user_data)
{
g_info ("Context gone: %s",
gssdp_client_get_host_ip (GSSDP_CLIENT (ctx)));
}
int
main (int argc, char *argv[])
{
g_autoptr (GUPnPContextManager) cm = gupnp_context_manager_create (0);
g_autoptr (GMainLoop) loop = g_main_loop_new (NULL, FALSE);
g_signal_connect (cm,
"context-available",
G_CALLBACK (on_context_available),
NULL);
g_signal_connect (cm,
"context-unavailable",
G_CALLBACK (on_context_unavailable),
NULL);
g_unix_signal_add (SIGINT, (GSourceFunc) g_main_loop_quit, loop);
g_unix_signal_add (SIGTERM, (GSourceFunc) g_main_loop_quit, loop);
g_main_loop_run (loop);
return 0;
}
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