2 * Main source module for the Citadel server
4 * Copyright (c) 1987-2021 by the citadel.org team
6 * This program is open source software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License, version 3.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
21 #include <libcitadel.h>
23 #include "ctdl_module.h"
24 #include "housekeeping.h"
25 #include "locate_host.h"
26 #include "citserver.h"
31 char *unique_session_numbers;
32 int ScheduledShutdown = 0;
33 time_t server_startup_time;
35 int openid_level_supported = 0;
36 char *backtrace_filename = NULL;
40 * Various things that need to be initialized at startup
42 void master_startup(void)
47 struct ctdlroom qrbuf;
52 syslog(LOG_DEBUG, "master_startup() started");
53 time(&server_startup_time);
55 syslog(LOG_INFO, "Checking directory access");
56 if ((pw = getpwuid(ctdluid)) == NULL) {
63 if (create_run_directories(CTDLUID, gid) != 0) {
64 syslog(LOG_ERR, "citserver: failed to access and create directories");
67 syslog(LOG_INFO, "Opening databases");
70 /* Load site-specific configuration */
71 syslog(LOG_INFO, "Initializing configuration system");
72 initialize_config_system();
74 migrate_legacy_control_record();
76 // If we have an existing database that is older than version 928, reindex the user records.
77 // Unfortunately we cannot do this in serv_upgrade.c because it needs to happen VERY early during startup.
78 int existing_db = CtdlGetConfigInt("MM_hosted_upgrade_level");
79 if ( (existing_db > 0) && (existing_db < 928) ) {
80 ForEachUser(reindex_user_928, NULL);
83 /* Check floor reference counts */
86 syslog(LOG_INFO, "Creating base rooms (if necessary)");
87 CtdlCreateRoom(CtdlGetConfigStr("c_baseroom"), 0, "", 0, 1, 0, VIEW_BBS);
88 CtdlCreateRoom(AIDEROOM, 3, "", 0, 1, 0, VIEW_BBS);
89 CtdlCreateRoom(SYSCONFIGROOM, 3, "", 0, 1, 0, VIEW_BBS);
90 CtdlCreateRoom(CtdlGetConfigStr("c_twitroom"), 0, "", 0, 1, 0, VIEW_BBS);
92 /* The "Local System Configuration" room doesn't need to be visible */
93 if (CtdlGetRoomLock(&qrbuf, SYSCONFIGROOM) == 0) {
94 qrbuf.QRflags2 |= QR2_SYSTEM;
95 CtdlPutRoomLock(&qrbuf);
98 /* Aide needs to be public postable, else we're not RFC conformant. */
99 if (CtdlGetRoomLock(&qrbuf, AIDEROOM) == 0) {
100 qrbuf.QRflags2 |= QR2_SMTP_PUBLIC;
101 CtdlPutRoomLock(&qrbuf);
104 syslog(LOG_INFO, "Seeding the pseudo-random number generator...");
105 urandom = fopen("/dev/urandom", "r");
106 if (urandom != NULL) {
107 rv = fread(&seed, sizeof seed, 1, urandom);
109 syslog(LOG_ERR, "citserver: failed to read random seed: %m");
113 gettimeofday(&tv, NULL);
119 syslog(LOG_DEBUG, "master_startup() finished");
124 * Cleanup routine to be called when the server is shutting down. Returns the needed exit code.
126 int master_cleanup(int exitcode)
128 static int already_cleaning_up = 0;
130 if (already_cleaning_up) {
135 already_cleaning_up = 1;
137 /* Do system-dependent stuff */
138 sysdep_master_cleanup();
140 /* Close the configuration system */
141 shutdown_config_system();
143 /* Close databases */
144 syslog(LOG_INFO, "citserver: closing databases");
147 /* If the operator requested a halt but not an exit, halt here. */
148 if (shutdown_and_halt) {
149 syslog(LOG_ERR, "citserver: Halting server without exiting.");
158 syslog(LOG_ERR, "citserver: Exiting with status %d", exitcode);
162 if (restart_server != 0) {
164 } else if ((running_as_daemon != 0) && ((exitcode == 0))) {
165 exitcode = CTDLEXIT_SHUTDOWN;
172 * returns an asterisk if there are any instant messages waiting,
175 char CtdlCheckExpress(void)
177 if (CC->FirstExpressMessage == NULL) {
185 void citproto_begin_session()
187 if (CC->nologin == 1) {
188 cprintf("%d Too many users are already online (maximum is %d)\n",
189 ERROR + MAX_SESSIONS_EXCEEDED, CtdlGetConfigInt("c_maxsessions")
191 CC->kill_me = KILLME_MAX_SESSIONS_EXCEEDED;
193 cprintf("%d %s Citadel server ready.\n", CIT_OK, CtdlGetConfigStr("c_fqdn"));
194 CC->can_receive_im = 1;
199 void citproto_begin_admin_session()
201 CC->internal_pgm = 1;
202 cprintf("%d %s Citadel server ADMIN CONNECTION ready.\n", CIT_OK, CtdlGetConfigStr("c_fqdn"));
207 * This loop performs all asynchronous functions.
209 void do_async_loop(void)
211 PerformSessionHooks(EVT_ASYNC);