/*
* Main source module for the Citadel server
*
- * Copyright (c) 1987-2011 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.
* GNU General Public License for more details.
*/
-#include "sysdep.h"
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <sys/types.h>
#include <sys/stat.h>
-
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-
-#if HAVE_BACKTRACE
-#include <execinfo.h>
-#endif
-
-#include <ctype.h>
-#include <string.h>
-#include <dirent.h>
-#include <errno.h>
-#include <limits.h>
-#include <netdb.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
+#include "sysdep.h"
+#include <time.h>
#include <libcitadel.h>
-#include "citadel.h"
-#include "server.h"
-#include "sysdep_decls.h"
-#include "threads.h"
-#include "citserver.h"
-#include "config.h"
-#include "database.h"
+
+#include "ctdl_module.h"
#include "housekeeping.h"
-#include "user_ops.h"
-#include "msgbase.h"
-#include "support.h"
#include "locate_host.h"
-#include "room_ops.h"
-#include "file_ops.h"
+#include "citserver.h"
+#include "user_ops.h"
#include "control.h"
-#include "euidindex.h"
-#include "context.h"
-#include "svn_revision.h"
-#include "ctdl_module.h"
+#include "config.h"
char *unique_session_numbers;
int ScheduledShutdown = 0;
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;
-
-
- 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
-}
-
-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\n", 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;
struct ctdlroom qrbuf;
int rv;
-
- syslog(LOG_DEBUG, "master_startup() started\n");
+ struct passwd *pw;
+ gid_t gid;
+
+ syslog(LOG_DEBUG, "master_startup() started");
time(&server_startup_time);
- get_config();
- syslog(LOG_INFO, "Opening databases\n");
+ 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_EMERG, "failed to access & create directories");
+ exit(1);
+ }
+ syslog(LOG_INFO, "Opening databases");
open_databases();
+
+ /* Load site-specific configuration */
+ 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)\n");
- CtdlCreateRoom(config.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(config.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);
- put_config();
-
- 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);
}
}
-
- release_control();
/* 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) ))
- exitcode = CTDLEXIT_SHUTDOWN;
- exit(exitcode);
-}
-
-
+ syslog(LOG_ERR, "citserver: Exiting with status %d", exitcode);
+ fflush(stdout);
+ fflush(stderr);
-/*
- * cmd_info() - tell the client about this server
- */
-void cmd_info(char *cmdbuf) {
- cprintf("%d Server info:\n", LISTING_FOLLOWS);
- cprintf("%d\n", CC->cs_pid);
- cprintf("%s\n", config.c_nodename);
- cprintf("%s\n", config.c_humannode);
- cprintf("%s\n", config.c_fqdn);
- cprintf("%s\n", CITADEL);
- cprintf("%d\n", REV_LEVEL);
- cprintf("%s\n", config.c_site_location);
- cprintf("%s\n", config.c_sysadm);
- cprintf("%d\n", SERVER_TYPE);
- cprintf("%s\n", config.c_moreprompt);
- cprintf("1\n"); /* 1 = yes, this system supports floors */
- cprintf("1\n"); /* 1 = we support the extended paging options */
- cprintf("\n"); /* nonce no longer supported */
- cprintf("1\n"); /* 1 = yes, this system supports the QNOP command */
-
-#ifdef HAVE_LDAP
- cprintf("1\n"); /* 1 = yes, this server is LDAP-enabled */
-#else
- cprintf("0\n"); /* 1 = no, this server is not LDAP-enabled */
-#endif
-
- if ((config.c_auth_mode == AUTHMODE_NATIVE) &&
- (config.c_disable_newu == 0))
- {
- cprintf("%d\n", config.c_disable_newu);
- }
- else {
- cprintf("1\n"); /* "create new user" does not work with non-native auth modes */
- }
-
- cprintf("%s\n", config.c_default_cal_zone);
-
- /* thread load averages -- temporarily disabled during refactoring of this code */
- cprintf("0\n"); /* load average */
- cprintf("0\n"); /* worker average */
- cprintf("0\n"); /* thread count */
-
- cprintf("1\n"); /* yes, Sieve mail filtering is supported */
- cprintf("%d\n", config.c_enable_fulltext);
- cprintf("%s\n", svn_revision());
-
- if (config.c_auth_mode == AUTHMODE_NATIVE) {
- cprintf("%d\n", openid_level_supported); /* OpenID is enabled when using native auth */
- }
- else {
- cprintf("0\n"); /* OpenID is disabled when using non-native auth */
+ if (restart_server != 0) {
+ exitcode = 1;
+ } else if ((running_as_daemon != 0) && ((exitcode == 0))) {
+ exitcode = CTDLEXIT_SHUTDOWN;
}
-
- cprintf("%d\n", config.c_guest_logins);
-
- cprintf("000\n");
+ 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 cmd_time(char *argbuf)
-{
- time_t tv;
- struct tm tmp;
-
- tv = time(NULL);
- localtime_r(&tv, &tmp);
-
- /* timezone and daylight global variables are not portable. */
-#ifdef HAVE_STRUCT_TM_TM_GMTOFF
- cprintf("%d %ld|%ld|%d|%ld\n", CIT_OK, (long)tv, tmp.tm_gmtoff, tmp.tm_isdst, server_startup_time);
-#else
- cprintf("%d %ld|%ld|%d|%ld\n", CIT_OK, (long)tv, timezone, tmp.tm_isdst, server_startup_time);
-#endif
-}
-
-
-/*
- * 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 is_public_client(void)
-{
- 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, config.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; i<num_parms(public_clients); ++i) {
- extract_token(addrbuf, public_clients, i, '|', sizeof addrbuf);
- if (!strcasecmp(CC->cs_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);
-}
-
-
-/*
- * the client is identifying itself to the server
- */
-void cmd_iden(char *argbuf)
-{
- int dev_code;
- int cli_code;
- int rev_level;
- char desc[128];
- char from_host[128];
-
- if (num_parms(argbuf)<4) {
- cprintf("%d usage error\n", ERROR + ILLEGAL_VALUE);
- return;
- }
-
- dev_code = extract_int(argbuf,0);
- cli_code = extract_int(argbuf,1);
- rev_level = extract_int(argbuf,2);
- extract_token(desc, argbuf, 3, '|', sizeof desc);
-
- safestrncpy(from_host, config.c_fqdn, sizeof from_host);
- from_host[sizeof from_host - 1] = 0;
- if (num_parms(argbuf)>=5) extract_token(from_host, argbuf, 4, '|', sizeof from_host);
-
- CC->cs_clientdev = dev_code;
- CC->cs_clienttyp = cli_code;
- CC->cs_clientver = rev_level;
- safestrncpy(CC->cs_clientname, desc, sizeof CC->cs_clientname);
- CC->cs_clientname[31] = 0;
-
- /* For local sockets and public clients, trust the hostname supplied by the client */
- if ( (CC->is_local_socket) || (is_public_client()) ) {
- safestrncpy(CC->cs_host, from_host, sizeof CC->cs_host);
- CC->cs_host[sizeof CC->cs_host - 1] = 0;
- CC->cs_addr[0] = 0;
- }
-
- syslog(LOG_NOTICE, "Client %d/%d/%01d.%02d (%s) from %s\n",
- dev_code,
- cli_code,
- (rev_level / 100),
- (rev_level % 100),
- desc,
- CC->cs_host
- );
- cprintf("%d Ok\n",CIT_OK);
-}
-
-
-/*
- * help_subst() - support routine for help file viewer
- */
-void help_subst(char *strbuf, char *source, char *dest)
-{
- char workbuf[SIZ];
- int p;
-
- while (p = pattern2(strbuf, source), (p >= 0)) {
- strcpy(workbuf, &strbuf[p + strlen(source)]);
- strcpy(&strbuf[p], dest);
- strcat(strbuf, workbuf);
- }
-}
-
-void do_help_subst(char *buffer)
-{
- char buf2[16];
-
- help_subst(buffer, "^nodename", config.c_nodename);
- help_subst(buffer, "^humannode", config.c_humannode);
- help_subst(buffer, "^fqdn", config.c_fqdn);
- help_subst(buffer, "^username", CC->user.fullname);
- snprintf(buf2, sizeof buf2, "%ld", CC->user.usernum);
- help_subst(buffer, "^usernum", buf2);
- help_subst(buffer, "^sysadm", config.c_sysadm);
- help_subst(buffer, "^variantname", CITADEL);
- snprintf(buf2, sizeof buf2, "%d", config.c_maxsessions);
- help_subst(buffer, "^maxsessions", buf2);
- help_subst(buffer, "^bbsdir", ctdl_message_dir);
-}
-
-
-typedef const char *ccharp;
-/*
- * display system messages or help
- */
-void cmd_mesg(char *mname)
-{
- FILE *mfp;
- char targ[256];
- char buf[256];
- char buf2[256];
- char *dirs[2];
- DIR *dp;
- struct dirent *d;
-
- extract_token(buf, mname, 0, '|', sizeof buf);
-
- dirs[0] = strdup(ctdl_message_dir);
- dirs[1] = strdup(ctdl_hlp_dir);
-
- snprintf(buf2, sizeof buf2, "%s.%d.%d",
- buf, CC->cs_clientdev, CC->cs_clienttyp);
-
- /* If the client requested "?" then produce a listing */
- if (!strcmp(buf, "?")) {
- cprintf("%d %s\n", LISTING_FOLLOWS, buf);
- dp = opendir(dirs[1]);
- if (dp != NULL) {
- while (d = readdir(dp), d != NULL) {
- if (d->d_name[0] != '.') {
- cprintf(" %s\n", d->d_name);
- }
- }
- closedir(dp);
- }
- cprintf("000\n");
- free(dirs[0]);
- free(dirs[1]);
- return;
- }
-
- /* Otherwise, look for the requested file by name. */
- else {
- mesg_locate(targ, sizeof targ, buf2, 2, (const ccharp*)dirs);
- if (IsEmptyStr(targ)) {
- snprintf(buf2, sizeof buf2, "%s.%d",
- buf, CC->cs_clientdev);
- mesg_locate(targ, sizeof targ, buf2, 2,
- (const ccharp*)dirs);
- if (IsEmptyStr(targ)) {
- mesg_locate(targ, sizeof targ, buf, 2,
- (const ccharp*)dirs);
- }
- }
- }
-
- free(dirs[0]);
- free(dirs[1]);
-
- if (IsEmptyStr(targ)) {
- cprintf("%d '%s' not found. (Searching in %s and %s)\n",
- ERROR + FILE_NOT_FOUND,
- mname,
- ctdl_message_dir,
- ctdl_hlp_dir
- );
- return;
- }
-
- mfp = fopen(targ, "r");
- if (mfp==NULL) {
- cprintf("%d Cannot open '%s': %s\n",
- ERROR + INTERNAL_ERROR, targ, strerror(errno));
- return;
- }
- cprintf("%d %s\n", LISTING_FOLLOWS,buf);
-
- while (fgets(buf, (sizeof buf - 1), mfp) != NULL) {
- buf[strlen(buf)-1] = 0;
- do_help_subst(buf);
- cprintf("%s\n",buf);
- }
-
- fclose(mfp);
- cprintf("000\n");
-}
-
-
-/*
- * enter system messages or help
- */
-void cmd_emsg(char *mname)
-{
- FILE *mfp;
- char targ[256];
- char buf[256];
- char *dirs[2];
- int a;
-
- unbuffer_output();
-
- if (CtdlAccessCheck(ac_aide)) return;
-
- extract_token(buf, mname, 0, '|', sizeof buf);
- for (a=0; !IsEmptyStr(&buf[a]); ++a) { /* security measure */
- if (buf[a] == '/') buf[a] = '.';
- }
-
- dirs[0] = strdup(ctdl_message_dir);
- dirs[1] = strdup(ctdl_hlp_dir);
-
- mesg_locate(targ, sizeof targ, buf, 2, (const ccharp*)dirs);
- free(dirs[0]);
- free(dirs[1]);
-
- if (IsEmptyStr(targ)) {
- snprintf(targ, sizeof targ,
- "%s/%s",
- ctdl_hlp_dir, buf);
- }
-
- mfp = fopen(targ,"w");
- if (mfp==NULL) {
- cprintf("%d Cannot open '%s': %s\n",
- ERROR + INTERNAL_ERROR, targ, strerror(errno));
- return;
- }
- cprintf("%d %s\n", SEND_LISTING, targ);
-
- while (client_getln(buf, sizeof buf) >=0 && strcmp(buf, "000")) {
- fprintf(mfp, "%s\n", buf);
- }
-
- fclose(mfp);
-}
-
-
-/* Don't show the names of private rooms unless the viewing
- * user also knows the rooms.
- */
-void GenerateRoomDisplay(char *real_room,
- CitContext *viewed,
- CitContext *viewer) {
-
- int ra;
-
- strcpy(real_room, viewed->room.QRname);
- if (viewed->room.QRflags & QR_MAILBOX) {
- strcpy(real_room, &real_room[11]);
- }
- if (viewed->room.QRflags & QR_PRIVATE) {
- CtdlRoomAccess(&viewed->room, &viewer->user, &ra, NULL);
- if ( (ra & UA_KNOWN) == 0) {
- strcpy(real_room, " ");
- }
- }
-
- if (viewed->cs_flags & CS_CHAT) {
- while (strlen(real_room) < 14) {
- strcat(real_room, " ");
- }
- strcpy(&real_room[14], "<chat>");
- }
-
-}
-
-/*
- * Convenience function.
- */
-int CtdlAccessCheck(int required_level) {
-
- if (CC->internal_pgm) return(0);
- if (required_level >= ac_internal) {
- cprintf("%d This is not a user-level command.\n",
- ERROR + HIGHER_ACCESS_REQUIRED);
- return(-1);
- }
-
- if ((required_level >= ac_logged_in_or_guest) && (CC->logged_in == 0) && (!config.c_guest_logins)) {
- cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
- return(-1);
- }
-
- if ((required_level >= ac_logged_in) && (CC->logged_in == 0)) {
- cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
- return(-1);
- }
-
- if (CC->user.axlevel >= AxAideU) return(0);
- if (required_level >= ac_aide) {
- cprintf("%d This command requires Admin access.\n",
- ERROR + HIGHER_ACCESS_REQUIRED);
- return(-1);
- }
-
- if (is_room_aide()) return(0);
- if (required_level >= ac_room_aide) {
- cprintf("%d This command requires Admin or Room Admin access.\n",
- ERROR + HIGHER_ACCESS_REQUIRED);
- return(-1);
- }
-
- /* shhh ... succeed quietly */
- return(0);
-}
-
-
-
-/*
- * Terminate another running session
- */
-void cmd_term(char *cmdbuf)
+char CtdlCheckExpress(void)
{
- int session_num;
- int terminated = 0;
-
- session_num = extract_int(cmdbuf, 0);
-
- terminated = CtdlTerminateOtherSession(session_num);
-
- if (terminated < 0) {
- cprintf("%d You can't kill your own session.\n", ERROR + ILLEGAL_VALUE);
- return;
- }
-
- if (terminated & TERM_FOUND) {
- if (terminated == TERM_KILLED) {
- cprintf("%d Session terminated.\n", CIT_OK);
- }
- else {
- cprintf("%d You are not allowed to do that.\n",
- ERROR + HIGHER_ACCESS_REQUIRED);
- }
- }
- else {
- cprintf("%d No such session.\n", ERROR + ILLEGAL_VALUE);
- }
-}
-
-
-/*
- * get the paginator prompt
- */
-void cmd_more(char *argbuf) {
- cprintf("%d %s\n", CIT_OK, config.c_moreprompt);
-}
-
-
-/*
- * echo
- */
-void cmd_echo(char *etext)
-{
- cprintf("%d %s\n", CIT_OK, etext);
-}
-
-
-
-/*
- * Shut down the server
- */
-void cmd_down(char *argbuf) {
- char *Reply ="%d Shutting down server. Goodbye.\n";
-
- if (CtdlAccessCheck(ac_aide)) return;
-
- if (!IsEmptyStr(argbuf))
- {
- int state = CIT_OK;
- restart_server = extract_int(argbuf, 0);
-
- if (restart_server > 0)
- {
- Reply = "%d citserver will now shut down and automatically restart.\n";
- }
- if ((restart_server > 0) && !running_as_daemon)
- {
- syslog(LOG_ERR, "The user requested restart, but not running as daemon! Geronimooooooo!\n");
- Reply = "%d Warning: citserver is not running in daemon mode and is therefore unlikely to restart automatically.\n";
- state = ERROR;
- }
- cprintf(Reply, state);
- }
- else
- {
- cprintf(Reply, CIT_OK + SERVER_SHUTTING_DOWN);
- }
- CC->kill_me = KILLME_SERVER_SHUTTING_DOWN;
- server_shutting_down = 1;
-}
-
-
-/*
- * Halt the server without exiting the server process.
- */
-void cmd_halt(char *argbuf) {
-
- if (CtdlAccessCheck(ac_aide)) return;
-
- cprintf("%d Halting server. Goodbye.\n", CIT_OK);
- server_shutting_down = 1;
- shutdown_and_halt = 1;
-}
-
-
-/*
- * Schedule or cancel a server shutdown
- */
-void cmd_scdn(char *argbuf)
-{
- int new_state;
- int state = CIT_OK;
- char *Reply = "%d %d\n";
-
- if (CtdlAccessCheck(ac_aide)) return;
-
- new_state = extract_int(argbuf, 0);
- if ((new_state == 2) || (new_state == 3))
- {
- restart_server = 1;
- if (!running_as_daemon)
- {
- syslog(LOG_ERR, "The user requested restart, but not running as deamon! Geronimooooooo!\n");
- Reply = "%d %d Warning, not running in deamon mode. maybe we will come up again, but don't lean on it.\n";
- state = ERROR;
- }
-
- restart_server = extract_int(argbuf, 0);
- new_state -= 2;
- }
- if ((new_state == 0) || (new_state == 1)) {
- ScheduledShutdown = new_state;
- }
- cprintf(Reply, state, ScheduledShutdown);
-}
-
-
-/*
- * Set or unset asynchronous protocol mode
- */
-void cmd_asyn(char *argbuf)
-{
- int new_state;
-
- new_state = extract_int(argbuf, 0);
- if ((new_state == 0) || (new_state == 1)) {
- CC->is_async = new_state;
+ if (CC->FirstExpressMessage == NULL) {
+ return (' ');
+ } else {
+ return ('*');
}
- cprintf("%d %d\n", CIT_OK, CC->is_async);
}
-
-/*
- * Back-end function for starting a session
- */
-void begin_session(CitContext *con)
+void citproto_begin_session()
{
- /*
- * Initialize some variables specific to our context.
- */
- con->logged_in = 0;
- con->internal_pgm = 0;
- con->download_fp = NULL;
- con->upload_fp = NULL;
- con->cached_msglist = NULL;
- con->cached_num_msgs = 0;
- con->FirstExpressMessage = NULL;
- time(&con->lastcmd);
- time(&con->lastidle);
- strcpy(con->lastcmdname, " ");
- strcpy(con->cs_clientname, "(unknown)");
- strcpy(con->curr_user, NLI);
- *con->net_node = '\0';
- *con->fake_username = '\0';
- *con->fake_hostname = '\0';
- *con->fake_roomname = '\0';
- *con->cs_clientinfo = '\0';
- safestrncpy(con->cs_host, config.c_fqdn, sizeof con->cs_host);
- safestrncpy(con->cs_addr, "", sizeof con->cs_addr);
- con->cs_UDSclientUID = -1;
- con->cs_host[sizeof con->cs_host - 1] = 0;
- if (!CC->is_local_socket) {
- locate_host(con->cs_host, sizeof con->cs_host,
- con->cs_addr, sizeof con->cs_addr,
- con->client_socket
- );
- }
- else {
- con->cs_host[0] = 0;
- con->cs_addr[0] = 0;
-#ifdef HAVE_STRUCT_UCRED
- {
- /* as http://www.wsinnovations.com/softeng/articles/uds.html told us... */
- struct ucred credentials;
- socklen_t ucred_length = sizeof(struct ucred);
-
- /*fill in the user data structure */
- if(getsockopt(con->client_socket, SOL_SOCKET, SO_PEERCRED, &credentials, &ucred_length)) {
- syslog(LOG_NOTICE, "could obtain credentials from unix domain socket");
-
- }
- else {
- /* the process ID of the process on the other side of the socket */
- /* credentials.pid; */
-
- /* the effective UID of the process on the other side of the socket */
- con->cs_UDSclientUID = credentials.uid;
-
- /* the effective primary GID of the process on the other side of the socket */
- /* credentials.gid; */
-
- /* To get supplemental groups, we will have to look them up in our account
- database, after a reverse lookup on the UID to get the account name.
- We can take this opportunity to check to see if this is a legit account.
- */
- snprintf(con->cs_clientinfo, sizeof(con->cs_clientinfo),
- "PID: "F_PID_T"; UID: "F_UID_T"; GID: "F_XPID_T" ",
- credentials.pid,
- credentials.uid,
- credentials.gid);
- }
- }
-#endif
- }
- con->cs_flags = 0;
- con->upload_type = UPL_FILE;
- con->dl_is_net = 0;
-
- con->nologin = 0;
- if (((config.c_maxsessions > 0)&&(num_sessions > config.c_maxsessions)) || CtdlWantSingleUser()) {
- con->nologin = 1;
- }
-
- if (!CC->is_local_socket) {
- syslog(LOG_NOTICE, "Session (%s) started from %s (%s).\n", con->ServiceName, con->cs_host, con->cs_addr);
- }
- else {
- syslog(LOG_NOTICE, "Session (%s) started via local socket UID:%d.\n", con->ServiceName, con->cs_UDSclientUID);
- }
-
- /* Run any session startup routines registered by loadable modules */
- PerformSessionHooks(EVT_START);
-}
-
-
-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,
- config.c_nodename, config.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, config.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() {
- CC->internal_pgm = 1;
- cprintf("%d %s Citadel server ADMIN CONNECTION ready.\n", CIT_OK, config.c_nodename);
-}
-
-
-void cmd_noop(char *argbuf)
-{
- cprintf("%d%cok\n", CIT_OK, CtdlCheckExpress() );
-}
-
-
-void cmd_qnop(char *argbuf)
-{
- /* do nothing, this command returns no response */
-}
-
-
-void cmd_quit(char *argbuf)
-{
- cprintf("%d Goodbye.\n", CIT_OK);
- CC->kill_me = KILLME_CLIENT_LOGGED_OUT;
-}
-
-
-void cmd_lout(char *argbuf)
+void citproto_begin_admin_session()
{
- if (CC->logged_in)
- CtdlUserLogout();
- cprintf("%d logged out.\n", CIT_OK);
-}
-
-
-/*
- * 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)] <password command hidden from log>",
- CC->cs_pid, CC->curr_user, CC->user.usernum
- );
- }
-
- buffer_output();
-
- /*
- * Let other clients see the last command we executed, and
- * update the idle time, but not NOOP, QNOP, PEXP, GEXP, RWHO, or TIME.
- */
- if ( (strncasecmp(cmdbuf, "NOOP", 4))
- && (strncasecmp(cmdbuf, "QNOP", 4))
- && (strncasecmp(cmdbuf, "PEXP", 4))
- && (strncasecmp(cmdbuf, "GEXP", 4))
- && (strncasecmp(cmdbuf, "RWHO", 4))
- && (strncasecmp(cmdbuf, "TIME", 4)) ) {
- strcpy(CC->lastcmdname, " ");
- safestrncpy(CC->lastcmdname, cmdbuf, sizeof(CC->lastcmdname));
- time(&CC->lastidle);
- }
-
- if ((strncasecmp(cmdbuf, "ENT0", 4))
- && (strncasecmp(cmdbuf, "MESG", 4))
- && (strncasecmp(cmdbuf, "MSGS", 4)))
- {
- CC->cs_flags &= ~CS_POSTING;
- }
-
- if (!DLoader_Exec_Cmd(cmdbuf)) {
- cprintf("%d Unrecognized or unsupported command.\n", ERROR + CMD_NOT_SUPPORTED);
- }
-
- unbuffer_output();
-
- /* Run any after-each-command routines registered by modules */
- PerformSessionHooks(EVT_CMD);
+ 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);
-}
-
-
-/*****************************************************************************/
-/* MODULE INITIALIZATION STUFF */
-/*****************************************************************************/
-
-CTDL_MODULE_INIT(citserver)
+void do_async_loop(void)
{
- if (!threading) {
- CtdlRegisterProtoHook(cmd_noop, "NOOP", "no operation");
- CtdlRegisterProtoHook(cmd_qnop, "QNOP", "no operation with no response");
- CtdlRegisterProtoHook(cmd_quit, "QUIT", "log out and disconnect from server");
- CtdlRegisterProtoHook(cmd_lout, "LOUT", "log out but do not disconnect from server");
- CtdlRegisterProtoHook(cmd_asyn, "ASYN", "enable asynchronous server responses");
- CtdlRegisterProtoHook(cmd_info, "INFO", "fetch server capabilities and configuration");
- CtdlRegisterProtoHook(cmd_mesg, "MESG", "fetch system banners");
- CtdlRegisterProtoHook(cmd_emsg, "EMSG", "submit system banners");
- CtdlRegisterProtoHook(cmd_echo, "ECHO", "echo text back to the client");
- CtdlRegisterProtoHook(cmd_more, "MORE", "fetch the paginator prompt");
- CtdlRegisterProtoHook(cmd_iden, "IDEN", "identify the client software and location");
- CtdlRegisterProtoHook(cmd_term, "TERM", "terminate another running session");
- CtdlRegisterProtoHook(cmd_down, "DOWN", "perform a server shutdown");
- CtdlRegisterProtoHook(cmd_halt, "HALT", "halt the server without exiting the server process");
- CtdlRegisterProtoHook(cmd_scdn, "SCDN", "schedule or cancel a server shutdown");
- CtdlRegisterProtoHook(cmd_time, "TIME", "fetch the date and time from the server");
- }
- /* return our id for the Log */
- return "citserver";
+ PerformSessionHooks(EVT_ASYNC);
}
projects / citadel.git / blobdiff