+++ /dev/null
-// Main source module for the Citadel server
-//
-// Copyright (c) 1987-2021 by the citadel.org team
-//
-// This program is open source software. Use, duplication, or disclosure
-// is subject to the terms of the GNU General Public License, version 3.
-// The program is distributed without any warranty, expressed or implied.
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <sys/stat.h>
-#include "sysdep.h"
-#include <time.h>
-#include <libcitadel.h>
-
-#include "ctdl_module.h"
-#include "housekeeping.h"
-#include "locate_host.h"
-#include "citserver.h"
-#include "user_ops.h"
-#include "control.h"
-#include "config.h"
-
-char *unique_session_numbers;
-int ScheduledShutdown = 0;
-time_t server_startup_time;
-int panic_fd;
-int openid_level_supported = 0;
-
-
-// We need pseudo-random numbers for a few things. Seed generously.
-void seed_random_number_generator(void) {
- FILE *urandom;
- struct timeval tv;
- unsigned int seed;
-
- syslog(LOG_INFO, "Seeding the pseudo-random number generator...");
- urandom = fopen("/dev/urandom", "r");
- if (urandom != NULL) {
- if (fread(&seed, sizeof seed, 1, urandom) == -1) {
- syslog(LOG_ERR, "citserver: failed to read random seed: %m");
- }
- fclose(urandom);
- }
- else {
- gettimeofday(&tv, NULL);
- seed = tv.tv_usec;
- }
- srand(seed);
- srandom(seed);
-}
-
-
-// Various things that need to be initialized at startup
-void master_startup(void) {
- struct ctdlroom qrbuf;
- struct passwd *pw;
- gid_t gid;
-
- syslog(LOG_DEBUG, "master_startup() started");
- time(&server_startup_time);
-
- syslog(LOG_INFO, "Checking directory access");
- if ((pw = getpwuid(ctdluid)) == NULL) {
- gid = getgid();
- }
- else {
- gid = pw->pw_gid;
- }
-
- if (create_run_directories(CTDLUID, gid) != 0) {
- syslog(LOG_ERR, "citserver: failed to access and create directories");
- exit(1);
- }
- syslog(LOG_INFO, "Opening databases");
- open_databases();
-
- // Load site-specific configuration
- seed_random_number_generator(); // must be done before config system
- syslog(LOG_INFO, "Initializing configuration system");
- initialize_config_system();
- validate_config();
- migrate_legacy_control_record();
-
- // If we have an existing database that is older than version 928, reindex the user records.
- // Unfortunately we cannot do this in serv_upgrade.c because it needs to happen VERY early during startup.
- int existing_db = CtdlGetConfigInt("MM_hosted_upgrade_level");
- if ( (existing_db > 0) && (existing_db < 928) ) {
- ForEachUser(reindex_user_928, NULL);
- }
-
- // Check floor reference counts
- check_ref_counts();
-
- syslog(LOG_INFO, "Creating base rooms (if necessary)");
- CtdlCreateRoom(CtdlGetConfigStr("c_baseroom"), 0, "", 0, 1, 0, VIEW_BBS);
- CtdlCreateRoom(AIDEROOM, 3, "", 0, 1, 0, VIEW_BBS);
- CtdlCreateRoom(SYSCONFIGROOM, 3, "", 0, 1, 0, VIEW_BBS);
- CtdlCreateRoom(CtdlGetConfigStr("c_twitroom"), 0, "", 0, 1, 0, VIEW_BBS);
-
- // The "Local System Configuration" room doesn't need to be visible
- if (CtdlGetRoomLock(&qrbuf, SYSCONFIGROOM) == 0) {
- qrbuf.QRflags2 |= QR2_SYSTEM;
- CtdlPutRoomLock(&qrbuf);
- }
-
- // Aide needs to be public postable, else we're not RFC conformant.
- if (CtdlGetRoomLock(&qrbuf, AIDEROOM) == 0) {
- qrbuf.QRflags2 |= QR2_SMTP_PUBLIC;
- CtdlPutRoomLock(&qrbuf);
- }
-
- syslog(LOG_DEBUG, "master_startup() finished");
-}
-
-
-// Cleanup routine to be called when the server is shutting down. Returns the needed exit code.
-int master_cleanup(int exitcode) {
- static int already_cleaning_up = 0;
-
- if (already_cleaning_up) {
- while (1) {
- usleep(1000000);
- }
- }
- already_cleaning_up = 1;
-
- // Do system-dependent stuff
- sysdep_master_cleanup();
-
- // Close the configuration system
- shutdown_config_system();
-
- // Close databases
- syslog(LOG_INFO, "citserver: closing databases");
- close_databases();
-
- // If the operator requested a halt but not an exit, halt here.
- if (shutdown_and_halt) {
- syslog(LOG_ERR, "citserver: Halting server without exiting.");
- fflush(stdout);
- fflush(stderr);
- while (1) {
- sleep(32767);
- }
- }
-
- // Now go away.
- syslog(LOG_ERR, "citserver: Exiting with status %d", exitcode);
- fflush(stdout);
- fflush(stderr);
-
- if (restart_server != 0) {
- exitcode = 1;
- }
- else if ((running_as_daemon != 0) && ((exitcode == 0))) {
- exitcode = CTDLEXIT_SHUTDOWN;
- }
- return (exitcode);
-}
-
-
-// returns an asterisk if there are any instant messages waiting, space otherwise.
-char CtdlCheckExpress(void) {
- if (CC->FirstExpressMessage == NULL) {
- return (' ');
- }
- else {
- return ('*');
- }
-}
-
-
-void citproto_begin_session() {
- if (CC->nologin == 1) {
- cprintf("%d Too many users are already online (maximum is %d)\n",
- ERROR + MAX_SESSIONS_EXCEEDED, CtdlGetConfigInt("c_maxsessions")
- );
- CC->kill_me = KILLME_MAX_SESSIONS_EXCEEDED;
- }
- else {
- cprintf("%d %s Citadel server ready.\n", CIT_OK, CtdlGetConfigStr("c_fqdn"));
- CC->can_receive_im = 1;
- }
-}
-
-
-void citproto_begin_admin_session() {
- CC->internal_pgm = 1;
- cprintf("%d %s Citadel server ADMIN CONNECTION ready.\n", CIT_OK, CtdlGetConfigStr("c_fqdn"));
-}
-
-
-// This loop performs all asynchronous functions.
-void do_async_loop(void) {
- PerformSessionHooks(EVT_ASYNC);
-}
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