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/* libinfinity - a GObject-based infinote implementation
* Copyright (C) 2007-2011 Armin Burgmeier <armin@arbur.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <infinoted/infinoted-config-reload.h>
#include <infinoted/infinoted-dh-params.h>
#include <infinoted/infinoted-pam.h>
#include <libinfinity/server/infd-filesystem-storage.h>
#include <libinfinity/inf-config.h>
#include <string.h>
static const guint8 INFINOTED_CONFIG_RELOAD_IPV6_ANY_ADDR[16] =
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
static void
infinoted_config_reload_update_connection_sasl_context(InfXmlConnection* xml,
gpointer userdata)
{
if(!INF_IS_XMPP_CONNECTION(xml))
return;
inf_xmpp_connection_reset_sasl_authentication(
INF_XMPP_CONNECTION(xml),
(InfSaslContext*) userdata,
userdata ? "PLAIN" : NULL
);
}
/**
* infinoted_config_reload:
* @run: A #InfinotedRun.
* @error: Location to store error information, if any.
*
* Reloads the server's config file(s) at runtime. If there is a problem
* loading them the server is untouched, the function returns %FALSE and
* @error is set.
*
* Returns: %TRUE on success or %FALSE if an error occured.
*/
gboolean
infinoted_config_reload(InfinotedRun* run,
GError** error)
{
InfinotedStartup* startup;
gnutls_dh_params_t dh_params;
InfdTcpServer* tcp6;
InfdTcpServer* tcp4;
guint port;
InfIpAddress* addr;
GError* local_error;
InfdStorage* storage;
InfdFilesystemStorage* filesystem_storage;
gchar* root_directory;
startup = infinoted_startup_new(NULL, NULL, error);
if(!startup) return FALSE;
/* Acquire DH params if necessary (if security policy changed from
* no-tls to one of allow-tls or require-tls). */
dh_params = run->dh_params;
if(startup->credentials)
{
if(!infinoted_dh_params_ensure(startup->credentials, &dh_params, error))
{
infinoted_startup_free(startup);
return FALSE;
}
}
/* Find out the port we are currently running on */
tcp4 = tcp6 = NULL;
if(run->xmpp6)
g_object_get(G_OBJECT(run->xmpp6), "tcp-server", &tcp6, NULL);
if(run->xmpp4)
g_object_get(G_OBJECT(run->xmpp4), "tcp-server", &tcp4, NULL);
g_assert(tcp4 != NULL || tcp6 != NULL);
if(tcp6) g_object_get(G_OBJECT(tcp6), "local-port", &port, NULL);
else g_object_get(G_OBJECT(tcp4), "local-port", &port, NULL);
if(tcp4) g_object_unref(tcp4);
if(tcp6) g_object_unref(tcp6);
tcp4 = tcp6 = NULL;
/* If the port changes, then create new servers */
if(startup->options->port != port)
{
/* TODO: This is the same logic as in infinoted_run_new()... should
* probably go into an extra function. */
addr = inf_ip_address_new_raw6(INFINOTED_CONFIG_RELOAD_IPV6_ANY_ADDR);
tcp6 = g_object_new(
INFD_TYPE_TCP_SERVER,
"io", run->io,
"local-address", addr,
"local-port", startup->options->port,
NULL
);
inf_ip_address_free(addr);
if(!infd_tcp_server_bind(tcp6, NULL))
{
g_object_unref(tcp6);
tcp6 = NULL;
}
tcp4 = g_object_new(
INFD_TYPE_TCP_SERVER,
"io", run->io,
"local-address", NULL,
"local-port", startup->options->port,
NULL
);
local_error = NULL;
if(!infd_tcp_server_bind(tcp4, &local_error))
{
g_object_unref(tcp4);
tcp4 = NULL;
if(tcp6 != NULL)
{
g_error_free(local_error);
}
else
{
g_propagate_error(error, local_error);
infinoted_startup_free(startup);
return FALSE;
}
}
}
/* Beyond this point, tcp4 or tcp6 are non-null if the port was changed and
* the new server sockets could be bound successfully. */
g_object_get(G_OBJECT(run->directory), "storage", &storage, NULL);
g_assert(INFD_IS_FILESYSTEM_STORAGE(storage));
filesystem_storage = INFD_FILESYSTEM_STORAGE(storage);
g_object_get(
G_OBJECT(filesystem_storage),
"root-directory", &root_directory,
NULL
);
g_object_unref(storage);
filesystem_storage = NULL;
if(strcmp(root_directory, startup->options->root_directory) != 0)
{
/* Root directory changes. I don't think this is actually useful, but
* all code is there, so let's support it. */
filesystem_storage =
infd_filesystem_storage_new(startup->options->root_directory);
}
/* This should be the last thing that may fail which we do, because we
* allow connection on the new port after this. */
if(tcp4 != NULL || tcp6 != NULL)
{
local_error = NULL;
if(tcp6 != NULL)
{
local_error = NULL;
if(!infd_tcp_server_open(tcp6, &local_error))
{
g_object_unref(tcp6);
tcp6 = NULL;
}
}
if(tcp4)
{
if(!infd_tcp_server_open(tcp4,
(local_error != NULL) ? NULL : &local_error))
{
g_object_unref(tcp4);
tcp4 = NULL;
}
}
if(tcp4 == NULL && tcp6 == NULL)
{
g_propagate_error(error, local_error);
if(filesystem_storage) g_object_unref(filesystem_storage);
infinoted_startup_free(startup);
return FALSE;
}
/* One of the server startups might have failed - that's not a problem if
* we could start the other one. */
if(local_error) g_error_free(local_error);
}
/* OK, so beyond this point there is nothing that can fail anymore. */
if(tcp4 != NULL || tcp6 != NULL)
{
/* We have new servers, close old ones */
if(run->xmpp6 != NULL)
{
infd_server_pool_remove_server(run->pool, INFD_XML_SERVER(run->xmpp6));
infd_xml_server_close(INFD_XML_SERVER(run->xmpp6));
g_object_unref(run->xmpp6);
run->xmpp6 = NULL;
}
if(run->xmpp4 != NULL)
{
infd_server_pool_remove_server(run->pool, INFD_XML_SERVER(run->xmpp4));
infd_xml_server_close(INFD_XML_SERVER(run->xmpp4));
g_object_unref(run->xmpp4);
run->xmpp4 = NULL;
}
if(tcp6 != NULL)
{
run->xmpp6 = infd_xmpp_server_new(
tcp6,
startup->options->security_policy,
startup->credentials,
NULL,
NULL
);
g_object_unref(tcp6);
infd_server_pool_add_server(run->pool, INFD_XML_SERVER(run->xmpp6));
#ifdef LIBINFINITY_HAVE_AVAHI
infd_server_pool_add_local_publisher(
run->pool,
run->xmpp6,
INF_LOCAL_PUBLISHER(run->avahi)
);
#endif
}
if(tcp4 != NULL)
{
run->xmpp4 = infd_xmpp_server_new(
tcp4,
startup->options->security_policy,
startup->credentials,
NULL,
NULL
);
g_object_unref(tcp4);
infd_server_pool_add_server(run->pool, INFD_XML_SERVER(run->xmpp4));
#ifdef LIBINFINITY_HAVE_AVAHI
infd_server_pool_add_local_publisher(
run->pool,
run->xmpp4,
INF_LOCAL_PUBLISHER(run->avahi)
);
#endif
}
}
else
{
/* No new servers, so just set new certificate settings
* for existing ones. */
if(run->xmpp6 != NULL)
{
/* Make sure to set credentials before security-policy */
g_object_set(
G_OBJECT(run->xmpp6),
"credentials", startup->credentials,
"security-policy", startup->options->security_policy,
NULL
);
}
if(run->xmpp4 != NULL)
{
g_object_set(
G_OBJECT(run->xmpp4),
"credentials", startup->credentials,
"security-policy", startup->options->security_policy,
NULL
);
}
}
if(filesystem_storage != NULL)
{
g_object_set(
G_OBJECT(run->directory),
"storage", filesystem_storage,
NULL
);
g_object_unref(filesystem_storage);
}
if( (run->autosave == NULL && startup->options->autosave_interval > 0) ||
(run->autosave != NULL && startup->options->autosave_interval !=
run->autosave->autosave_interval))
{
if(run->autosave != NULL)
{
infinoted_autosave_free(run->autosave);
run->autosave = NULL;
}
if(startup->options->autosave_interval > 0)
{
run->autosave = infinoted_autosave_new(
run->directory,
startup->options->autosave_interval
);
}
}
#ifdef LIBINFINITY_HAVE_LIBDAEMON
/* Remember whether we have been daemonized; this is not a config file
* option, so not properly set in our newly created startup. */
startup->options->daemonize = run->startup->options->daemonize;
#endif
if(run->xmpp4 != NULL)
{
g_object_set(
G_OBJECT(run->xmpp4),
"sasl-context", startup->sasl_context,
"sasl-mechanisms", startup->sasl_context ? "PLAIN" : NULL,
NULL
);
}
if(run->xmpp6 != NULL)
{
g_object_set(
G_OBJECT(run->xmpp6),
"sasl-context", startup->sasl_context,
"sasl-mechanisms", startup->sasl_context ? "PLAIN" : NULL,
NULL
);
}
/* Give each connection the new sasl context. This is necessary even if the
* connection already had a sasl context since that holds on to the old
* startup object. This aborts authentications in progress and otherwise
* has no effect, really. */
infd_directory_foreach_connection(
run->directory,
infinoted_config_reload_update_connection_sasl_context,
startup->sasl_context
);
infinoted_startup_free(run->startup);
run->startup = startup;
return TRUE;
}
/* vim:set et sw=2 ts=2: */
|