X-Git-Url: https://code.citadel.org/?p=citadel.git;a=blobdiff_plain;f=citadel%2Fcitserver.c;h=b9648f6f70a3ba3b3b5759e992d1069477583070;hp=9832b781276932dbab8d01c4bee2e1ae96c4effc;hb=5ac2920028e92a453c686c799327d7a66b3e7b49;hpb=7b6c1a40ca8adc2e68c525d09a5788a5d46034ce diff --git a/citadel/citserver.c b/citadel/citserver.c index 9832b7812..b9648f6f7 100644 --- a/citadel/citserver.c +++ b/citadel/citserver.c @@ -1,7 +1,7 @@ /* * Main source module for the Citadel server * - * Copyright (c) 1987-2015 by the citadel.org team + * Copyright (c) 1987-2020 by the citadel.org team * * This program is open source software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 3. @@ -12,12 +12,12 @@ * GNU General Public License for more details. */ +#include +#include #include +#include #include "sysdep.h" #include -#if HAVE_BACKTRACE -#include -#endif #include #include "ctdl_module.h" @@ -34,84 +34,12 @@ time_t server_startup_time; int panic_fd; int openid_level_supported = 0; -/* - * print the actual stack frame. - */ -void cit_backtrace(void) -{ -#ifdef HAVE_BACKTRACE - void *stack_frames[50]; - size_t size, i; - char **strings; - - const char *p = IOSTR; - if (p == NULL) p = ""; - size = backtrace(stack_frames, sizeof(stack_frames) / sizeof(void*)); - strings = backtrace_symbols(stack_frames, size); - for (i = 0; i < size; i++) { - if (strings != NULL) - syslog(LOG_ALERT, "%s %s\n", p, strings[i]); - else - syslog(LOG_ALERT, "%s %p\n", p, stack_frames[i]); - } - free(strings); -#endif -} - -void cit_oneline_backtrace(void) -{ -#ifdef HAVE_BACKTRACE - void *stack_frames[50]; - size_t size, i; - char **strings; - StrBuf *Buf; - - size = backtrace(stack_frames, sizeof(stack_frames) / sizeof(void*)); - strings = backtrace_symbols(stack_frames, size); - if (size > 0) - { - Buf = NewStrBuf(); - for (i = 1; i < size; i++) { - if (strings != NULL) - StrBufAppendPrintf(Buf, "%s : ", strings[i]); - else - StrBufAppendPrintf(Buf, "%p : ", stack_frames[i]); - } - free(strings); - syslog(LOG_ALERT, "%s %s\n", IOSTR, ChrPtr(Buf)); - FreeStrBuf(&Buf); - } -#endif -} - -/* - * print the actual stack frame. - */ -void cit_panic_backtrace(int SigNum) -{ -#ifdef HAVE_BACKTRACE - void *stack_frames[10]; - size_t size, i; - char **strings; - - printf("caught signal 11\n"); - size = backtrace(stack_frames, sizeof(stack_frames) / sizeof(void*)); - strings = backtrace_symbols(stack_frames, size); - for (i = 0; i < size; i++) { - if (strings != NULL) - syslog(LOG_ALERT, "%s\n", strings[i]); - else - syslog(LOG_ALERT, "%p\n", stack_frames[i]); - } - free(strings); -#endif - exit(-1); -} /* * Various things that need to be initialized at startup */ -void master_startup(void) { +void master_startup(void) +{ struct timeval tv; unsigned int seed; FILE *urandom; @@ -119,8 +47,8 @@ void master_startup(void) { int rv; struct passwd *pw; gid_t gid; - - syslog(LOG_DEBUG, "master_startup() started\n"); + + syslog(LOG_DEBUG, "master_startup() started"); time(&server_startup_time); syslog(LOG_INFO, "Checking directory access"); @@ -143,303 +71,146 @@ void master_startup(void) { 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)\n"); - 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); + 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); - } + 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); - } + if (CtdlGetRoomLock(&qrbuf, AIDEROOM) == 0) { + qrbuf.QRflags2 |= QR2_SMTP_PUBLIC; + CtdlPutRoomLock(&qrbuf); + } - syslog(LOG_INFO, "Seeding the pseudo-random number generator...\n"); + syslog(LOG_INFO, "Seeding the pseudo-random number generator..."); urandom = fopen("/dev/urandom", "r"); if (urandom != NULL) { rv = fread(&seed, sizeof seed, 1, urandom); - if (rv == -1) - syslog(LOG_EMERG, "failed to read random seed: %s\n", - strerror(errno)); + if (rv == -1) { + syslog(LOG_ERR, "citserver: failed to read random seed: %m"); + } fclose(urandom); - } - else { + } else { gettimeofday(&tv, NULL); seed = tv.tv_usec; } srand(seed); srandom(seed); - syslog(LOG_DEBUG, "master_startup() finished\n"); + syslog(LOG_DEBUG, "master_startup() finished"); } /* - * Cleanup routine to be called when the server is shutting down. + * Cleanup routine to be called when the server is shutting down. Returns the needed exit code. */ -void master_cleanup(int exitcode) { +int master_cleanup(int exitcode) +{ struct CleanupFunctionHook *fcn; static int already_cleaning_up = 0; - if (already_cleaning_up) while(1) usleep(1000000); + if (already_cleaning_up) { + while (1) { + usleep(1000000); + } + } already_cleaning_up = 1; /* Run any cleanup routines registered by loadable modules */ for (fcn = CleanupHookTable; fcn != NULL; fcn = fcn->next) { - (*fcn->h_function_pointer)(); + (*fcn->h_function_pointer) (); } - /* Close the AdjRefCount queue file */ - AdjRefCount(-1, 0); - /* Do system-dependent stuff */ sysdep_master_cleanup(); /* Close the configuration system */ shutdown_config_system(); - + /* Close databases */ syslog(LOG_INFO, "Closing databases\n"); close_databases(); /* If the operator requested a halt but not an exit, halt here. */ if (shutdown_and_halt) { - syslog(LOG_NOTICE, "citserver: Halting server without exiting.\n"); - fflush(stdout); fflush(stderr); - while(1) { + syslog(LOG_ERR, "citserver: Halting server without exiting."); + fflush(stdout); + fflush(stderr); + while (1) { sleep(32767); } } - + /* Now go away. */ - syslog(LOG_NOTICE, "citserver: Exiting with status %d\n", exitcode); - fflush(stdout); fflush(stderr); - - if (restart_server != 0) - exit(1); - if ((running_as_daemon != 0) && ((exitcode == 0) )) + 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; - exit(exitcode); + } + return (exitcode); } - /* * returns an asterisk if there are any instant messages waiting, * space otherwise. */ -char CtdlCheckExpress(void) { +char CtdlCheckExpress(void) +{ if (CC->FirstExpressMessage == NULL) { - return(' '); - } - else { - return('*'); + return (' '); + } else { + return ('*'); } } -/* - * Check originating host against the public_clients file. This determines - * whether the client is allowed to change the hostname for this session - * (for example, to show the location of the user rather than the location - * of the client). - */ -int CtdlIsPublicClient(void) +void citproto_begin_session() { - char buf[1024]; - char addrbuf[1024]; - FILE *fp; - int i; - char *public_clientspos; - char *public_clientsend; - char *paddr = NULL; - struct stat statbuf; - static time_t pc_timestamp = 0; - static char public_clients[SIZ]; - static char public_clients_file[SIZ]; - -#define LOCALHOSTSTR "127.0.0.1" - - snprintf(public_clients_file, sizeof public_clients_file, "%s/public_clients", ctdl_etc_dir); - - /* - * Check the time stamp on the public_clients file. If it's been - * updated since the last time we were here (or if this is the first - * time we've been through the loop), read its contents and learn - * the IP addresses of the listed hosts. - */ - if (stat(public_clients_file, &statbuf) != 0) { - /* No public_clients file exists, so bail out */ - syslog(LOG_WARNING, "Warning: '%s' does not exist\n", - public_clients_file); - return(0); - } - - if (statbuf.st_mtime > pc_timestamp) { - begin_critical_section(S_PUBLIC_CLIENTS); - syslog(LOG_INFO, "Loading %s\n", public_clients_file); - - public_clientspos = &public_clients[0]; - public_clientsend = public_clientspos + SIZ; - safestrncpy(public_clientspos, LOCALHOSTSTR, sizeof public_clients); - public_clientspos += sizeof(LOCALHOSTSTR) - 1; - - if (hostname_to_dotted_quad(addrbuf, CtdlGetConfigStr("c_fqdn")) == 0) { - *(public_clientspos++) = '|'; - paddr = &addrbuf[0]; - while (!IsEmptyStr (paddr) && - (public_clientspos < public_clientsend)) - *(public_clientspos++) = *(paddr++); - } - - fp = fopen(public_clients_file, "r"); - if (fp != NULL) - while ((fgets(buf, sizeof buf, fp)!=NULL) && - (public_clientspos < public_clientsend)){ - char *ptr; - ptr = buf; - while (!IsEmptyStr(ptr)) { - if (*ptr == '#') { - *ptr = 0; - break; - } - else ptr++; - } - ptr--; - while (ptr>buf && isspace(*ptr)) { - *(ptr--) = 0; - } - if (hostname_to_dotted_quad(addrbuf, buf) == 0) { - *(public_clientspos++) = '|'; - paddr = addrbuf; - while (!IsEmptyStr(paddr) && - (public_clientspos < public_clientsend)){ - *(public_clientspos++) = *(paddr++); - } - } - } - if (fp != NULL) fclose(fp); - pc_timestamp = time(NULL); - end_critical_section(S_PUBLIC_CLIENTS); - } - - syslog(LOG_DEBUG, "Checking whether %s is a local or public client\n", - CC->cs_addr); - for (i=0; ics_addr, addrbuf)) { - syslog(LOG_DEBUG, "... yes its local.\n"); - return(1); - } - } - - /* No hits. This is not a public client. */ - syslog(LOG_DEBUG, "... no it isn't.\n"); - return(0); -} - - - - - -void citproto_begin_session() { - if (CC->nologin==1) { - cprintf("%d %s: Too many users are already online (maximum is %d)\n", - ERROR + MAX_SESSIONS_EXCEEDED, - CtdlGetConfigStr("c_nodename"), CtdlGetConfigInt("c_maxsessions") - ); + 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_nodename")); + } else { + cprintf("%d %s Citadel server ready.\n", CIT_OK, CtdlGetConfigStr("c_fqdn")); CC->can_receive_im = 1; } } -void citproto_begin_admin_session() { +void citproto_begin_admin_session() +{ CC->internal_pgm = 1; - cprintf("%d %s Citadel server ADMIN CONNECTION ready.\n", CIT_OK, CtdlGetConfigStr("c_nodename")); -} - - - - -/* - * This loop recognizes all server commands. - */ -void do_command_loop(void) { - char cmdbuf[SIZ]; - - time(&CC->lastcmd); - memset(cmdbuf, 0, sizeof cmdbuf); /* Clear it, just in case */ - if (client_getln(cmdbuf, sizeof cmdbuf) < 1) { - syslog(LOG_ERR, "Citadel client disconnected: ending session.\n"); - CC->kill_me = KILLME_CLIENT_DISCONNECTED; - return; - } - - /* Log the server command, but don't show passwords... */ - if ( (strncasecmp(cmdbuf, "PASS", 4)) && (strncasecmp(cmdbuf, "SETP", 4)) ) { - syslog(LOG_INFO, "[%d][%s(%ld)] %s", - CC->cs_pid, CC->curr_user, CC->user.usernum, cmdbuf - ); - } - else { - syslog(LOG_INFO, "[%d][%s(%ld)]