*
*/
-#ifdef DLL_EXPORT
-#define IN_LIBCIT
-#endif
-
#include "sysdep.h"
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <string.h>
+#include <dirent.h>
#include <errno.h>
#include <limits.h>
/* #include <dlfcn.h> */
#include "policy.h"
#include "control.h"
#include "tools.h"
+#include "euidindex.h"
#ifndef HAVE_SNPRINTF
#include "snprintf.h"
int ScheduledShutdown = 0;
int do_defrag = 0;
time_t server_startup_time;
+char pid_file_name[PATH_MAX];
/*
* Various things that need to be initialized at startup
unsigned int seed;
FILE *urandom;
struct ctdlroom qrbuf;
+ FILE *pidfile_fp;
lprintf(CTDL_DEBUG, "master_startup() started\n");
time(&server_startup_time);
+ /* pid file. If we go FSSTND this should end up in 'localstatedir' */
+ snprintf(pid_file_name, sizeof pid_file_name, "./citadel.pid");
+ pidfile_fp = fopen(pid_file_name, "w");
+ if (pidfile_fp != NULL) {
+ fprintf(pidfile_fp, "%d\n", (int)getpid());
+ fclose(pidfile_fp);
+ }
+
lprintf(CTDL_INFO, "Opening databases\n");
open_databases();
check_ref_counts();
lprintf(CTDL_INFO, "Creating base rooms (if necessary)\n");
- create_room(BASEROOM, 0, "", 0, 1, 0, VIEW_BBS);
+ create_room(config.c_baseroom, 0, "", 0, 1, 0, VIEW_BBS);
create_room(AIDEROOM, 3, "", 0, 1, 0, VIEW_BBS);
create_room(SYSCONFIGROOM, 3, "", 0, 1, 0, VIEW_BBS);
create_room(config.c_twitroom, 0, "", 0, 1, 0, VIEW_BBS);
lputroom(&qrbuf);
}
+ /*
+ * Create a room in which we can deposit "deleted" messages for
+ * deferred deletion. This will silently fail if the room already
+ * exists, and that's perfectly ok, because we want it to exist.
+ */
+ create_room(DELETED_MSGS_ROOM, 3, "", 0, 1, 0, VIEW_MAILBOX);
+
+ /*
+ * Make sure it's set to be a "system room" so it doesn't show up
+ * in the <K>nown rooms list for Aides. Also set the message expire
+ * policy to "by count, 1 message" so everything gets deleted all
+ * the time (we can't set it to 0 because that's invalid, so we keep
+ * a single message around).
+ */
+ if (lgetroom(&qrbuf, DELETED_MSGS_ROOM) == 0) {
+ qrbuf.QRflags2 |= QR2_SYSTEM;
+ qrbuf.QRep.expire_mode = EXPIRE_NUMMSGS;
+ qrbuf.QRep.expire_value = 1;
+ lputroom(&qrbuf);
+ }
+
lprintf(CTDL_INFO, "Seeding the pseudo-random number generator...\n");
urandom = fopen("/dev/urandom", "r");
if (urandom != NULL) {
void master_cleanup(int exitcode) {
struct CleanupFunctionHook *fcn;
static int already_cleaning_up = 0;
- int i;
if (already_cleaning_up) while(1) sleep(1);
already_cleaning_up = 1;
(*fcn->h_function_pointer)();
}
+ /* Shut down the indexer thread */
+ lprintf(CTDL_INFO, "Waiting for the indexer thread to shut down\n");
+ pthread_join(indexer_thread_tid, NULL);
+
+ /* Shut down the checkpoint thread */
+ lprintf(CTDL_INFO, "Waiting for the checkpoint thread to shut down\n");
+ pthread_join(checkpoint_thread_tid, NULL);
+
/* Close databases */
lprintf(CTDL_INFO, "Closing databases\n");
close_databases();
lprintf(CTDL_NOTICE, "citserver: Exiting with status %d\n", exitcode);
fflush(stdout); fflush(stderr);
+ unlink(pid_file_name);
exit(exitcode);
}
-/*
- * Free any per-session data allocated by modules or whatever
- */
-void deallocate_user_data(struct CitContext *con)
-{
- struct CtdlSessData *ptr;
-
- begin_critical_section(S_SESSION_TABLE);
- while (con->FirstSessData != NULL) {
- lprintf(CTDL_DEBUG, "Deallocating user data symbol %ld\n",
- con->FirstSessData->sym_id);
- if (con->FirstSessData->sym_data != NULL)
- free(con->FirstSessData->sym_data);
- ptr = con->FirstSessData->next;
- free(con->FirstSessData);
- con->FirstSessData = ptr;
- }
- end_critical_section(S_SESSION_TABLE);
-}
-
-
-
/*
- * Terminate a session and remove its context data structure.
+ * Terminate a session.
*/
void RemoveContext (struct CitContext *con)
{
if (con==NULL) {
- lprintf(CTDL_ERR, "WARNING: RemoveContext() called with NULL!\n");
+ lprintf(CTDL_ERR,
+ "WARNING: RemoveContext() called with NULL!\n");
return;
}
- lprintf(CTDL_DEBUG, "RemoveContext() called\n");
-
- /* Remove the context from the global context list. This needs
- * to get done FIRST to avoid concurrency problems. It is *vitally*
- * important to keep num_sessions accurate!!
- */
- lprintf(CTDL_DEBUG, "Removing context for session %d\n", con->cs_pid);
- begin_critical_section(S_SESSION_TABLE);
- if (con->prev) con->prev->next = con->next; else ContextList = con->next;
- if (con->next) con->next->prev = con->prev;
- --num_sessions;
- end_critical_section(S_SESSION_TABLE);
+ lprintf(CTDL_DEBUG, "RemoveContext() session %d\n", con->cs_pid);
/* Run any cleanup routines registered by loadable modules.
- * Note 1: This must occur *before* deallocate_user_data() because the
- * cleanup functions might touch dynamic session data.
- * Note 2: We have to "become_session()" because the cleanup functions
- * might make references to "CC" assuming it's the right one.
+ * Note: We have to "become_session()" because the cleanup functions
+ * might make references to "CC" assuming it's the right one.
*/
become_session(con);
PerformSessionHooks(EVT_STOP);
lprintf(CTDL_DEBUG, "Calling logout(%d)\n", con->cs_pid);
logout(con);
- unlink(con->temp);
lprintf(CTDL_NOTICE, "[%3d] Session ended.\n", con->cs_pid);
- /* Deallocate any user-data attached to this session */
- deallocate_user_data(con);
-
/* If the client is still connected, blow 'em away. */
lprintf(CTDL_DEBUG, "Closing socket %d\n", con->client_socket);
close(con->client_socket);
- /* This is where we used to check for scheduled shutdowns. */
-
- /* Free up the memory used by this context */
- free(con);
-
lprintf(CTDL_DEBUG, "Done with RemoveContext()\n");
}
-/*
- * Return a pointer to some generic per-session user data.
- * (This function returns NULL if the requested symbol is not allocated.)
- *
- * NOTE: we use critical sections for allocating and de-allocating these,
- * but not for locating one.
- */
-void *CtdlGetUserData(unsigned long requested_sym)
-{
- struct CtdlSessData *ptr;
-
- for (ptr = CC->FirstSessData; ptr != NULL; ptr = ptr->next)
- if (ptr->sym_id == requested_sym)
- return(ptr->sym_data);
-
- lprintf(CTDL_ERR, "ERROR! CtdlGetUserData(%ld) symbol not allocated\n",
- requested_sym);
- return NULL;
-}
-
-
-/*
- * Allocate some generic per-session user data.
- */
-void CtdlAllocUserData(unsigned long requested_sym, size_t num_bytes)
-{
- struct CtdlSessData *ptr;
-
- lprintf(CTDL_DEBUG, "CtdlAllocUserData(%ld) called\n", requested_sym);
-
- /* Fail silently if the symbol is already registered. */
- for (ptr = CC->FirstSessData; ptr != NULL; ptr = ptr->next) {
- if (ptr->sym_id == requested_sym) {
- return;
- }
- }
-
- /* Grab us some memory! Dem's good eatin' !! */
- ptr = malloc(sizeof(struct CtdlSessData));
- ptr->sym_id = requested_sym;
- ptr->sym_data = malloc(num_bytes);
- memset(ptr->sym_data, 0, num_bytes);
-
- begin_critical_section(S_SESSION_TABLE);
- ptr->next = CC->FirstSessData;
- CC->FirstSessData = ptr;
- end_critical_section(S_SESSION_TABLE);
-
- lprintf(CTDL_DEBUG, "CtdlAllocUserData(%ld) finished\n", requested_sym);
-}
-
-
-/*
- * Change the size of a buffer allocated with CtdlAllocUserData()
- */
-void CtdlReallocUserData(unsigned long requested_sym, size_t num_bytes)
-{
- struct CtdlSessData *ptr;
-
- for (ptr = CC->FirstSessData; ptr != NULL; ptr = ptr->next) {
- if (ptr->sym_id == requested_sym) {
- ptr->sym_data = realloc(ptr->sym_data, num_bytes);
- return;
- }
- }
-
- lprintf(CTDL_ERR, "CtdlReallocUserData() ERROR: symbol %ld not found!\n",
- requested_sym);
-}
-
-
-
-
-
-
/*
* cmd_info() - tell the client about this server
*/
cprintf("%s\n", config.c_fqdn);
cprintf("%s\n", CITADEL);
cprintf("%d\n", REV_LEVEL);
- cprintf("%s\n", config.c_bbs_city);
+ cprintf("%s\n", config.c_site_location);
cprintf("%s\n", config.c_sysadm);
cprintf("%d\n", SERVER_TYPE);
cprintf("%s\n", config.c_moreprompt);
*/
int is_public_client(void)
{
- char buf[SIZ];
- char addrbuf[SIZ];
+ char buf[1024];
+ char addrbuf[1024];
FILE *fp;
int i;
struct stat statbuf;
static time_t pc_timestamp = 0;
static char public_clients[SIZ];
+#ifndef HAVE_ETC
#define PUBLIC_CLIENTS "./public_clients"
+#else
+#define PUBLIC_CLIENTS ETC_DIR"/public_clients"
+#endif
/*
* Check the time stamp on the public_clients file. If it's been
begin_critical_section(S_PUBLIC_CLIENTS);
lprintf(CTDL_INFO, "Loading %s\n", PUBLIC_CLIENTS);
- strcpy(public_clients, "127.0.0.1");
+ safestrncpy(public_clients, "127.0.0.1", sizeof public_clients);
if (hostname_to_dotted_quad(addrbuf, config.c_fqdn) == 0) {
strcat(public_clients, "|");
strcat(public_clients, addrbuf);
}
- fp = fopen("public_clients", "r");
+ fp = fopen(
+#ifndef HAVE_ETC
+ "."
+#else
+ ETC_DIR
+#endif
+ "/public_clients", "r");
if (fp != NULL) while (fgets(buf, sizeof buf, fp)!=NULL) {
for (i=0; i<strlen(buf); ++i) {
if (buf[i] == '#') buf[i] = 0;
lprintf(CTDL_DEBUG, "Checking whether %s is a local or public client\n",
CC->cs_addr);
for (i=0; i<num_parms(public_clients); ++i) {
- extract(addrbuf, public_clients, i);
+ extract_token(addrbuf, public_clients, i, '|', sizeof addrbuf);
if (!strcasecmp(CC->cs_addr, addrbuf)) {
lprintf(CTDL_DEBUG, "... yes it is.\n");
return(1);
int dev_code;
int cli_code;
int rev_level;
- char desc[SIZ];
- char from_host[SIZ];
+ char desc[128];
+ char from_host[128];
struct in_addr addr;
int do_lookup = 0;
dev_code = extract_int(argbuf,0);
cli_code = extract_int(argbuf,1);
rev_level = extract_int(argbuf,2);
- extract(desc,argbuf,3);
+ 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(from_host,argbuf,4);
+ if (num_parms(argbuf)>=5) extract_token(from_host, argbuf, 4, '|', sizeof from_host);
CC->cs_clientdev = dev_code;
CC->cs_clienttyp = cli_code;
void cmd_mesg(char *mname)
{
FILE *mfp;
- char targ[SIZ];
- char buf[SIZ];
- char buf2[SIZ];
+ char targ[256];
+ char buf[256];
+ char buf2[256];
char *dirs[2];
+ DIR *dp;
+ struct dirent *d;
+
+ extract_token(buf, mname, 0, '|', sizeof buf);
+
+#ifdef HAVE_DATA_DIR
+ dirs[0] = strdup(DATA_DIR "/messages");
+#else
+ dirs[0] = strdup("messages");
+#endif
- extract(buf,mname,0);
-
- dirs[0]=malloc(64);
- dirs[1]=malloc(64);
- strcpy(dirs[0],"messages");
- strcpy(dirs[1],"help");
- snprintf(buf2, sizeof buf2, "%s.%d.%d", buf, CC->cs_clientdev, CC->cs_clienttyp);
- mesg_locate(targ,sizeof targ,buf2,2,(const char **)dirs);
- if (strlen(targ) == 0) {
- snprintf(buf2, sizeof buf2, "%s.%d", buf, CC->cs_clientdev);
- mesg_locate(targ,sizeof targ,buf2,2,(const char **)dirs);
+#ifdef HAVE_DATA_DIR
+ dirs[1] = strdup(DATA_DIR "/help");
+#else
+ dirs[1] = strdup("help");
+#endif
+
+ 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");
+ }
+
+ /* Otherwise, look for the requested file by name. */
+ else {
+ mesg_locate(targ, sizeof targ, buf2, 2, (const char **)dirs);
if (strlen(targ) == 0) {
- mesg_locate(targ,sizeof targ,buf,2,(const char **)dirs);
- }
+ snprintf(buf2, sizeof buf2, "%s.%d",
+ buf, CC->cs_clientdev);
+ mesg_locate(targ, sizeof targ, buf2, 2,
+ (const char **)dirs);
+ if (strlen(targ) == 0) {
+ mesg_locate(targ, sizeof targ, buf, 2,
+ (const char **)dirs);
+ }
+ }
}
+
free(dirs[0]);
free(dirs[1]);
}
cprintf("%d %s\n",LISTING_FOLLOWS,buf);
- while (fgets(buf, (SIZ-1), mfp)!=NULL) {
+ while (fgets(buf, (sizeof buf - 1), mfp) != NULL) {
buf[strlen(buf)-1] = 0;
do_help_subst(buf);
cprintf("%s\n",buf);
void cmd_emsg(char *mname)
{
FILE *mfp;
- char targ[SIZ];
- char buf[SIZ];
+ char targ[256];
+ char buf[256];
char *dirs[2];
int a;
if (CtdlAccessCheck(ac_aide)) return;
- extract(buf,mname,0);
+ extract_token(buf, mname, 0, '|', sizeof buf);
for (a=0; a<strlen(buf); ++a) { /* security measure */
if (buf[a] == '/') buf[a] = '.';
}
- dirs[0]=malloc(64);
- dirs[1]=malloc(64);
- strcpy(dirs[0],"messages");
- strcpy(dirs[1],"help");
- mesg_locate(targ,sizeof targ,buf,2,(const char**)dirs);
+#ifdef HAVE_DATA_DIR
+ dirs[0] = strdup(DATA_DIR "/messages");
+#else
+ dirs[0] = strdup("messages");
+#endif
+
+#ifdef HAVE_DATA_DIR
+ dirs[1] = strdup(DATA_DIR "/help");
+#else
+ dirs[1] = strdup("help");
+#endif
+
+ mesg_locate(targ, sizeof targ, buf, 2, (const char**)dirs);
free(dirs[0]);
free(dirs[1]);
if (strlen(targ)==0) {
- snprintf(targ, sizeof targ, "./help/%s", buf);
+ snprintf(targ, sizeof targ,
+#ifndef HAVE_DATA_DIR
+ "."
+#else
+ DATA_DIR
+#endif
+ "/help/%s", buf);
}
mfp = fopen(targ,"w");
*/
if (!CC->is_local_socket) {
sleep(5);
- cprintf("%d Authentication failed.\n", ERROR + PASSWORD_REQUIRED);
+ cprintf("%d Authentication failed.\n",
+ ERROR + PASSWORD_REQUIRED);
}
else if (secret == config.c_ipgm_secret) {
CC->internal_pgm = 1;
}
else {
sleep(5);
- cprintf("%d Authentication failed.\n", ERROR + PASSWORD_REQUIRED);
+ cprintf("%d Authentication failed.\n",
+ ERROR + PASSWORD_REQUIRED);
lprintf(CTDL_ERR, "Warning: ipgm authentication failed.\n");
CC->kill_me = 1;
}
- /* Now change the ipgm secret for the next round. */
+ /* Now change the ipgm secret for the next round.
+ * (Disabled because it breaks concurrent scripts. The fact that
+ * we no longer accept IPGM over the network should be sufficient
+ * to prevent brute-force attacks. If you don't agree, uncomment
+ * this block.)
get_config();
config.c_ipgm_secret = rand();
put_config();
+ */
}
strcpy(con->lastcmdname, " ");
strcpy(con->cs_clientname, "(unknown)");
strcpy(con->curr_user, NLI);
- strcpy(con->net_node,"");
+ strcpy(con->net_node, "");
strcpy(con->fake_username, "");
strcpy(con->fake_postname, "");
strcpy(con->fake_hostname, "");
strcpy(con->fake_roomname, "");
generate_nonce(con);
- safestrncpy(con->temp, tmpnam(NULL), sizeof con->temp);
safestrncpy(con->cs_host, config.c_fqdn, sizeof con->cs_host);
safestrncpy(con->cs_addr, "", sizeof con->cs_addr);
con->cs_host[sizeof con->cs_host - 1] = 0;
con->cs_flags = 0;
con->upload_type = UPL_FILE;
con->dl_is_net = 0;
- con->FirstSessData = NULL;
con->nologin = 0;
if ((config.c_maxsessions > 0)&&(num_sessions > config.c_maxsessions))
time(&CC->lastcmd);
memset(cmdbuf, 0, sizeof cmdbuf); /* Clear it, just in case */
if (client_getln(cmdbuf, sizeof cmdbuf) < 1) {
- lprintf(CTDL_ERR, "Client socket is broken; ending session\n");
+ lprintf(CTDL_ERR, "Client disconnected: ending session.\n");
CC->kill_me = 1;
return;
}
- lprintf(CTDL_INFO, "Citadel: %s\n", cmdbuf);
+
+ /* Log the server command, but don't show passwords... */
+ if ( (strncasecmp(cmdbuf, "PASS", 4))
+ && (strncasecmp(cmdbuf, "SETP", 4)) ) {
+ lprintf(CTDL_INFO, "%s\n", cmdbuf);
+ }
+ else {
+ lprintf(CTDL_INFO, "<password command sent>\n");
+ }
buffer_output();
&& (strncasecmp(cmdbuf, "PEXP", 4))
&& (strncasecmp(cmdbuf, "GEXP", 4)) ) {
strcpy(CC->lastcmdname, " ");
- safestrncpy(CC->lastcmdname, cmdbuf,
- sizeof(CC->lastcmdname) );
+ safestrncpy(CC->lastcmdname, cmdbuf, sizeof(CC->lastcmdname));
time(&CC->lastidle);
}
CC->cs_flags &= ~CS_POSTING;
}
- if (!strncasecmp(cmdbuf,"NOOP",4)) {
+ if (!strncasecmp(cmdbuf, "NOOP", 4)) {
cprintf("%d%cok\n", CIT_OK, CtdlCheckExpress() );
}
- else if (!strncasecmp(cmdbuf,"QNOP",4)) {
+ else if (!strncasecmp(cmdbuf, "QNOP", 4)) {
/* do nothing, this command returns no response */
}
cmd_rdir();
}
+ else if (!strncasecmp(cmdbuf,"EUID",4)) {
+ cmd_euid(&cmdbuf[5]);
+ }
+
else if (!strncasecmp(cmdbuf,"MSG0",4)) {
cmd_msg0(&cmdbuf[5]);
}
}
else if (!strncasecmp(cmdbuf,"LIST",4)) {
- cmd_list();
+ cmd_list(&cmdbuf[5]);
}
else if (!strncasecmp(cmdbuf,"CHEK",4)) {
projects / citadel.git / blobdiff