1 // Main source module for the Citadel server
3 // Copyright (c) 1987-2021 by the citadel.org team
5 // This program is open source software. Use, duplication, or disclosure
6 // is subject to the terms of the GNU General Public License, version 3.
7 // The program is distributed without any warranty, expressed or implied.
15 #include <libcitadel.h>
17 #include "ctdl_module.h"
18 #include "housekeeping.h"
19 #include "locate_host.h"
20 #include "citserver.h"
25 char *unique_session_numbers;
26 int ScheduledShutdown = 0;
27 time_t server_startup_time;
29 int openid_level_supported = 0;
32 // Various things that need to be initialized at startup
33 void master_startup(void) {
37 struct ctdlroom qrbuf;
42 syslog(LOG_DEBUG, "master_startup() started");
43 time(&server_startup_time);
45 syslog(LOG_INFO, "Checking directory access");
46 if ((pw = getpwuid(ctdluid)) == NULL) {
53 if (create_run_directories(CTDLUID, gid) != 0) {
54 syslog(LOG_ERR, "citserver: failed to access and create directories");
57 syslog(LOG_INFO, "Opening databases");
60 // Load site-specific configuration
61 syslog(LOG_INFO, "Initializing configuration system");
62 initialize_config_system();
64 migrate_legacy_control_record();
66 // If we have an existing database that is older than version 928, reindex the user records.
67 // Unfortunately we cannot do this in serv_upgrade.c because it needs to happen VERY early during startup.
68 int existing_db = CtdlGetConfigInt("MM_hosted_upgrade_level");
69 if ( (existing_db > 0) && (existing_db < 928) ) {
70 ForEachUser(reindex_user_928, NULL);
73 // Check floor reference counts
76 syslog(LOG_INFO, "Creating base rooms (if necessary)");
77 CtdlCreateRoom(CtdlGetConfigStr("c_baseroom"), 0, "", 0, 1, 0, VIEW_BBS);
78 CtdlCreateRoom(AIDEROOM, 3, "", 0, 1, 0, VIEW_BBS);
79 CtdlCreateRoom(SYSCONFIGROOM, 3, "", 0, 1, 0, VIEW_BBS);
80 CtdlCreateRoom(CtdlGetConfigStr("c_twitroom"), 0, "", 0, 1, 0, VIEW_BBS);
82 // The "Local System Configuration" room doesn't need to be visible
83 if (CtdlGetRoomLock(&qrbuf, SYSCONFIGROOM) == 0) {
84 qrbuf.QRflags2 |= QR2_SYSTEM;
85 CtdlPutRoomLock(&qrbuf);
88 // Aide needs to be public postable, else we're not RFC conformant.
89 if (CtdlGetRoomLock(&qrbuf, AIDEROOM) == 0) {
90 qrbuf.QRflags2 |= QR2_SMTP_PUBLIC;
91 CtdlPutRoomLock(&qrbuf);
94 syslog(LOG_INFO, "Seeding the pseudo-random number generator...");
95 urandom = fopen("/dev/urandom", "r");
96 if (urandom != NULL) {
97 rv = fread(&seed, sizeof seed, 1, urandom);
99 syslog(LOG_ERR, "citserver: failed to read random seed: %m");
104 gettimeofday(&tv, NULL);
110 syslog(LOG_DEBUG, "master_startup() finished");
114 // Cleanup routine to be called when the server is shutting down. Returns the needed exit code.
115 int master_cleanup(int exitcode) {
116 static int already_cleaning_up = 0;
118 if (already_cleaning_up) {
123 already_cleaning_up = 1;
125 // Do system-dependent stuff
126 sysdep_master_cleanup();
128 // Close the configuration system
129 shutdown_config_system();
132 syslog(LOG_INFO, "citserver: closing databases");
135 // If the operator requested a halt but not an exit, halt here.
136 if (shutdown_and_halt) {
137 syslog(LOG_ERR, "citserver: Halting server without exiting.");
146 syslog(LOG_ERR, "citserver: Exiting with status %d", exitcode);
150 if (restart_server != 0) {
153 else if ((running_as_daemon != 0) && ((exitcode == 0))) {
154 exitcode = CTDLEXIT_SHUTDOWN;
160 // returns an asterisk if there are any instant messages waiting, space otherwise.
161 char CtdlCheckExpress(void) {
162 if (CC->FirstExpressMessage == NULL) {
171 void citproto_begin_session() {
172 if (CC->nologin == 1) {
173 cprintf("%d Too many users are already online (maximum is %d)\n",
174 ERROR + MAX_SESSIONS_EXCEEDED, CtdlGetConfigInt("c_maxsessions")
176 CC->kill_me = KILLME_MAX_SESSIONS_EXCEEDED;
179 cprintf("%d %s Citadel server ready.\n", CIT_OK, CtdlGetConfigStr("c_fqdn"));
180 CC->can_receive_im = 1;
185 void citproto_begin_admin_session() {
186 CC->internal_pgm = 1;
187 cprintf("%d %s Citadel server ADMIN CONNECTION ready.\n", CIT_OK, CtdlGetConfigStr("c_fqdn"));
191 // This loop performs all asynchronous functions.
192 void do_async_loop(void) {
193 PerformSessionHooks(EVT_ASYNC);