4 * Server functions which perform operations on user objects.
17 #include <sys/types.h>
19 #ifdef HAVE_SYS_STAT_H
23 #if TIME_WITH_SYS_TIME
24 # include <sys/time.h>
28 # include <sys/time.h>
36 #include <libcitadel.h>
42 #include "sysdep_decls.h"
49 #include "citserver.h"
50 #include "citadel_dirs.h"
54 /* These pipes are used to talk to the chkpwd daemon, which is forked during startup */
55 int chkpwd_write_pipe[2];
56 int chkpwd_read_pipe[2];
59 * makeuserkey() - convert a username into the format used as a database key
60 * (it's just the username converted into lower case)
62 INLINE void makeuserkey(char *key, char *username) {
65 len = strlen(username);
66 if (len >= USERNAME_SIZE)
68 CtdlLogPrintf (CTDL_EMERG, "Username to long: %s", username);
70 len = USERNAME_SIZE - 1;
71 username[USERNAME_SIZE - 1]='\0';
73 for (i=0; i<=len; ++i) {
74 key[i] = tolower(username[i]);
80 * getuser() - retrieve named user into supplied buffer.
81 * returns 0 on success
83 int getuser(struct ctdluser *usbuf, char name[])
86 char usernamekey[USERNAME_SIZE];
87 struct cdbdata *cdbus;
90 memset(usbuf, 0, sizeof(struct ctdluser));
93 makeuserkey(usernamekey, name);
94 cdbus = cdb_fetch(CDB_USERS, usernamekey, strlen(usernamekey));
96 if (cdbus == NULL) { /* user not found */
100 memcpy(usbuf, cdbus->ptr,
101 ((cdbus->len > sizeof(struct ctdluser)) ?
102 sizeof(struct ctdluser) : cdbus->len));
111 * lgetuser() - same as getuser() but locks the record
113 int lgetuser(struct ctdluser *usbuf, char *name)
117 retcode = getuser(usbuf, name);
119 begin_critical_section(S_USERS);
126 * putuser() - write user buffer into the correct place on disk
128 void putuser(struct ctdluser *usbuf)
130 char usernamekey[USERNAME_SIZE];
132 makeuserkey(usernamekey, usbuf->fullname);
134 usbuf->version = REV_LEVEL;
136 usernamekey, strlen(usernamekey),
137 usbuf, sizeof(struct ctdluser));
143 * lputuser() - same as putuser() but locks the record
145 void lputuser(struct ctdluser *usbuf)
148 end_critical_section(S_USERS);
153 * rename_user() - this is tricky because the user's display name is the database key
155 * Returns 0 on success or nonzero if there was an error...
158 int rename_user(char *oldname, char *newname) {
159 struct CitContext *cptr;
160 int retcode = RENAMEUSER_OK;
161 struct ctdluser usbuf;
163 char oldnamekey[USERNAME_SIZE];
164 char newnamekey[USERNAME_SIZE];
166 /* We cannot rename a user who is currently logged in */
167 for (cptr = ContextList; cptr != NULL; cptr = cptr->next) {
168 if (!strcasecmp(cptr->user.fullname, oldname)) {
169 return(RENAMEUSER_LOGGED_IN);
173 /* Create the database keys... */
174 makeuserkey(oldnamekey, oldname);
175 makeuserkey(newnamekey, newname);
177 /* Lock up and get going */
178 begin_critical_section(S_USERS);
180 if (getuser(&usbuf, newname) == 0) {
181 retcode = RENAMEUSER_ALREADY_EXISTS;
185 if (getuser(&usbuf, oldname) != 0) {
186 retcode = RENAMEUSER_NOT_FOUND;
189 else { /* Sanity checks succeeded. Now rename the user. */
190 if (usbuf.usernum == 0)
192 CtdlLogPrintf (CTDL_DEBUG, "Can not rename user \"Citadel\".\n");
193 retcode = RENAMEUSER_NOT_FOUND;
195 CtdlLogPrintf(CTDL_DEBUG, "Renaming <%s> to <%s>\n", oldname, newname);
196 cdb_delete(CDB_USERS, oldnamekey, strlen(oldnamekey));
197 safestrncpy(usbuf.fullname, newname, sizeof usbuf.fullname);
199 cdb_store(CDB_USERSBYNUMBER, &usbuf.usernum, sizeof(long),
200 usbuf.fullname, strlen(usbuf.fullname)+1 );
202 retcode = RENAMEUSER_OK;
208 end_critical_section(S_USERS);
215 * Index-generating function used by Ctdl[Get|Set]Relationship
217 int GenerateRelationshipIndex(char *IndexBuf,
229 TheIndex.iRoomID = RoomID;
230 TheIndex.iRoomGen = RoomGen;
231 TheIndex.iUserID = UserID;
233 memcpy(IndexBuf, &TheIndex, sizeof(TheIndex));
234 return (sizeof(TheIndex));
240 * Back end for CtdlSetRelationship()
242 void put_visit(struct visit *newvisit)
247 memset (IndexBuf, 0, sizeof (IndexBuf));
248 /* Generate an index */
249 IndexLen = GenerateRelationshipIndex(IndexBuf,
252 newvisit->v_usernum);
254 /* Store the record */
255 cdb_store(CDB_VISIT, IndexBuf, IndexLen,
256 newvisit, sizeof(struct visit)
264 * Define a relationship between a user and a room
266 void CtdlSetRelationship(struct visit *newvisit,
267 struct ctdluser *rel_user,
268 struct ctdlroom *rel_room)
272 /* We don't use these in Citadel because they're implicit by the
273 * index, but they must be present if the database is exported.
275 newvisit->v_roomnum = rel_room->QRnumber;
276 newvisit->v_roomgen = rel_room->QRgen;
277 newvisit->v_usernum = rel_user->usernum;
283 * Locate a relationship between a user and a room
285 void CtdlGetRelationship(struct visit *vbuf,
286 struct ctdluser *rel_user,
287 struct ctdlroom *rel_room)
292 struct cdbdata *cdbvisit;
294 /* Generate an index */
295 IndexLen = GenerateRelationshipIndex(IndexBuf,
300 /* Clear out the buffer */
301 memset(vbuf, 0, sizeof(struct visit));
303 cdbvisit = cdb_fetch(CDB_VISIT, IndexBuf, IndexLen);
304 if (cdbvisit != NULL) {
305 memcpy(vbuf, cdbvisit->ptr,
306 ((cdbvisit->len > sizeof(struct visit)) ?
307 sizeof(struct visit) : cdbvisit->len));
311 /* If this is the first time the user has seen this room,
312 * set the view to be the default for the room.
314 vbuf->v_view = rel_room->QRdefaultview;
317 /* Set v_seen if necessary */
318 if (vbuf->v_seen[0] == 0) {
319 snprintf(vbuf->v_seen, sizeof vbuf->v_seen, "*:%ld", vbuf->v_lastseen);
324 void MailboxName(char *buf, size_t n, const struct ctdluser *who, const char *prefix)
326 snprintf(buf, n, "%010ld.%s", who->usernum, prefix);
331 * Is the user currently logged in an Aide?
335 if (CC->user.axlevel >= 6)
343 * Is the user currently logged in an Aide *or* the room aide for this room?
345 int is_room_aide(void)
348 if (!CC->logged_in) {
352 if ((CC->user.axlevel >= 6)
353 || (CC->room.QRroomaide == CC->user.usernum)) {
361 * getuserbynumber() - get user by number
362 * returns 0 if user was found
364 * Note: fetching a user this way requires one additional database operation.
366 int getuserbynumber(struct ctdluser *usbuf, long number)
368 struct cdbdata *cdbun;
371 cdbun = cdb_fetch(CDB_USERSBYNUMBER, &number, sizeof(long));
373 CtdlLogPrintf(CTDL_INFO, "User %ld not found\n", number);
377 CtdlLogPrintf(CTDL_INFO, "User %ld maps to %s\n", number, cdbun->ptr);
378 r = getuser(usbuf, cdbun->ptr);
386 * Helper function for rebuild_usersbynumber()
388 void rebuild_ubn_for_user(struct ctdluser *usbuf, void *data) {
391 struct ubnlist *next;
392 char username[USERNAME_SIZE];
396 static struct ubnlist *u = NULL;
397 struct ubnlist *ptr = NULL;
399 /* Lazy programming here. Call this function as a ForEachUser backend
400 * in order to queue up the room names, or call it with a null user
401 * to make it do the processing.
404 ptr = (struct ubnlist *) malloc(sizeof (struct ubnlist));
405 if (ptr == NULL) return;
407 ptr->usernum = usbuf->usernum;
408 safestrncpy(ptr->username, usbuf->fullname, sizeof ptr->username);
415 CtdlLogPrintf(CTDL_DEBUG, "Rebuilding usersbynumber index %10ld : %s\n",
416 u->usernum, u->username);
417 cdb_store(CDB_USERSBYNUMBER, &u->usernum, sizeof(long), u->username, strlen(u->username)+1);
428 * Rebuild the users-by-number index
430 void rebuild_usersbynumber(void) {
431 cdb_trunc(CDB_USERSBYNUMBER); /* delete the old indices */
432 ForEachUser(rebuild_ubn_for_user, NULL); /* enumerate the users */
433 rebuild_ubn_for_user(NULL, NULL); /* and index them */
439 * getuserbyuid() - get user by system uid (for PAM mode authentication)
440 * returns 0 if user was found
442 * WARNING: don't use this function unless you absolutely have to. It does
443 * a sequential search and therefore is computationally expensive.
445 int getuserbyuid(struct ctdluser *usbuf, uid_t number)
447 struct cdbdata *cdbus;
449 cdb_rewind(CDB_USERS);
451 while (cdbus = cdb_next_item(CDB_USERS), cdbus != NULL) {
452 memset(usbuf, 0, sizeof(struct ctdluser));
453 memcpy(usbuf, cdbus->ptr,
454 ((cdbus->len > sizeof(struct ctdluser)) ?
455 sizeof(struct ctdluser) : cdbus->len));
457 if (usbuf->uid == number) {
458 cdb_close_cursor(CDB_USERS);
466 * Back end for cmd_user() and its ilk
468 * NOTE: "authname" should only be used if we are attempting to use the "master user" feature
470 int CtdlLoginExistingUser(char *authname, char *trythisname)
475 CtdlLogPrintf(9, "CtdlLoginExistingUser(%s, %s)\n", authname, trythisname);
477 if ((CC->logged_in)) {
478 return login_already_logged_in;
481 if (trythisname == NULL) return login_not_found;
483 if (!strncasecmp(trythisname, "SYS_", 4))
485 CtdlLogPrintf(CTDL_DEBUG, "System user \"%s\" is not allowed to log in.\n", trythisname);
486 return login_not_found;
489 /* If a "master user" is defined, handle its authentication if specified */
491 if (strlen(config.c_master_user) > 0) if (strlen(config.c_master_pass) > 0) if (authname) {
492 if (!strcasecmp(authname, config.c_master_user)) {
497 /* Continue attempting user validation... */
498 safestrncpy(username, trythisname, USERNAME_SIZE);
501 if (IsEmptyStr(username)) {
502 return login_not_found;
505 if (config.c_auth_mode == AUTHMODE_HOST) {
510 struct passwd *tempPwdPtr;
513 CtdlLogPrintf(CTDL_DEBUG, "asking host about <%s>\n", username);
514 #ifdef HAVE_GETPWNAM_R
515 #ifdef SOLARIS_GETPWUID
516 CtdlLogPrintf(CTDL_DEBUG, "Calling getpwnam_r()\n");
517 tempPwdPtr = getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer);
518 #else // SOLARIS_GETPWUID
519 CtdlLogPrintf(CTDL_DEBUG, "Calling getpwnam_r()\n");
520 getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer, &tempPwdPtr);
521 #endif // SOLARIS_GETPWUID
522 #else // HAVE_GETPWNAM_R
523 CtdlLogPrintf(CTDL_DEBUG, "SHOULD NEVER GET HERE!!!\n");
525 #endif // HAVE_GETPWNAM_R
526 if (tempPwdPtr == NULL) {
527 CtdlLogPrintf(CTDL_DEBUG, "no such user <%s>\n", username);
528 return login_not_found;
531 /* Locate the associated Citadel account.
532 * If not found, make one attempt to create it.
534 found_user = getuserbyuid(&CC->user, pd.pw_uid);
535 CtdlLogPrintf(CTDL_DEBUG, "found it: uid=%ld, gecos=%s here: %d\n",
536 (long)pd.pw_uid, pd.pw_gecos, found_user);
537 if (found_user != 0) {
538 create_user(username, 0);
539 found_user = getuserbyuid(&CC->user, pd.pw_uid);
545 /* native auth mode */
547 struct recptypes *valid = NULL;
549 /* First, try to log in as if the supplied name is a display name */
550 found_user = getuser(&CC->user, username);
552 /* If that didn't work, try to log in as if the supplied name
553 * is an e-mail address
555 if (found_user != 0) {
556 valid = validate_recipients(username, NULL, 0);
558 if (valid->num_local == 1) {
559 found_user = getuser(&CC->user, valid->recp_local);
561 free_recipients(valid);
566 /* Did we find something? */
567 if (found_user == 0) {
568 if (((CC->nologin)) && (CC->user.axlevel < 6)) {
569 return login_too_many_users;
571 safestrncpy(CC->curr_user, CC->user.fullname,
572 sizeof CC->curr_user);
576 return login_not_found;
584 void cmd_user(char *cmdbuf)
589 extract_token(username, cmdbuf, 0, '|', sizeof username);
592 a = CtdlLoginExistingUser(NULL, username);
594 case login_already_logged_in:
595 cprintf("%d Already logged in.\n", ERROR + ALREADY_LOGGED_IN);
597 case login_too_many_users:
599 "Too many users are already online "
601 ERROR + MAX_SESSIONS_EXCEEDED,
602 config.c_nodename, config.c_maxsessions);
605 cprintf("%d Password required for %s\n",
606 MORE_DATA, CC->curr_user);
608 case login_not_found:
609 cprintf("%d %s not found.\n", ERROR + NO_SUCH_USER, username);
612 cprintf("%d Internal error\n", ERROR + INTERNAL_ERROR);
619 * session startup code which is common to both cmd_pass() and cmd_newu()
621 void session_startup(void)
623 CtdlLogPrintf(CTDL_NOTICE, "<%s> logged in\n", CC->curr_user);
625 lgetuser(&CC->user, CC->curr_user);
626 ++(CC->user.timescalled);
627 CC->previous_login = CC->user.lastcall;
628 time(&CC->user.lastcall);
630 /* If this user's name is the name of the system administrator
631 * (as specified in setup), automatically assign access level 6.
633 if (!strcasecmp(CC->user.fullname, config.c_sysadm)) {
634 CC->user.axlevel = 6;
637 /* If we're authenticating off the host system, automatically give
638 * root the highest level of access.
640 if (config.c_auth_mode == AUTHMODE_HOST) {
641 if (CC->user.uid == 0) {
642 CC->user.axlevel = 6;
649 * Populate CC->cs_inet_email with a default address. This will be
650 * overwritten with the user's directory address, if one exists, when
651 * the vCard module's login hook runs.
653 snprintf(CC->cs_inet_email, sizeof CC->cs_inet_email, "%s@%s",
654 CC->user.fullname, config.c_fqdn);
655 convert_spaces_to_underscores(CC->cs_inet_email);
657 /* Create any personal rooms required by the system.
658 * (Technically, MAILROOM should be there already, but just in case...)
660 create_room(MAILROOM, 4, "", 0, 1, 0, VIEW_MAILBOX);
661 create_room(SENTITEMS, 4, "", 0, 1, 0, VIEW_MAILBOX);
662 create_room(USERTRASHROOM, 4, "", 0, 1, 0, VIEW_MAILBOX);
664 /* Run any startup routines registered by loadable modules */
665 PerformSessionHooks(EVT_LOGIN);
667 /* Enter the lobby */
668 usergoto(config.c_baseroom, 0, 0, NULL, NULL);
672 void logged_in_response(void)
674 cprintf("%d %s|%d|%ld|%ld|%u|%ld|%ld\n",
675 CIT_OK, CC->user.fullname, CC->user.axlevel,
676 CC->user.timescalled, CC->user.posted,
677 CC->user.flags, CC->user.usernum,
684 * misc things to be taken care of when a user is logged out
688 struct CitContext *CCC = CC; /* CachedCitContext - performance boost */
690 * If there is a download in progress, abort it.
692 if (CCC->download_fp != NULL) {
693 fclose(CCC->download_fp);
694 CCC->download_fp = NULL;
698 * If there is an upload in progress, abort it.
700 if (CCC->upload_fp != NULL) {
705 * If we were talking to a network node, we're not anymore...
707 if (!IsEmptyStr(CCC->net_node)) {
708 network_talking_to(CCC->net_node, NTT_REMOVE);
711 /* Run any hooks registered by modules... */
712 PerformSessionHooks(EVT_LOGOUT);
715 * Clear out some session data. Most likely, the CitContext for this
716 * session is about to get nuked when the session disconnects, but
717 * since it's possible to log in again without reconnecting, we cannot
718 * make that assumption.
720 strcpy(CCC->fake_username, "");
721 strcpy(CCC->fake_hostname, "");
722 strcpy(CCC->fake_roomname, "");
725 /* Check to see if the user was deleted whilst logged in and purge them if necessary */
726 if ((CCC->user.axlevel == 0) && (CCC->user.usernum))
727 purge_user(CCC->user.fullname);
729 /* Free any output buffers */
730 if (CCC->output_buffer != NULL) {
736 * Validate a password on the host unix system by talking to the chkpwd daemon
738 static int validpw(uid_t uid, const char *pass)
742 if (IsEmptyStr(pass)) {
743 CtdlLogPrintf(CTDL_DEBUG, "refusing to check empty password for uid=%d using chkpwd...\n", uid);
747 CtdlLogPrintf(CTDL_DEBUG, "Validating password for uid=%d using chkpwd...\n", uid);
749 begin_critical_section(S_CHKPWD);
750 write(chkpwd_write_pipe[1], &uid, sizeof(uid_t));
751 write(chkpwd_write_pipe[1], pass, 256);
752 read(chkpwd_read_pipe[0], buf, 4);
753 end_critical_section(S_CHKPWD);
755 if (!strncmp(buf, "PASS", 4)) {
756 CtdlLogPrintf(CTDL_DEBUG, "...pass\n");
760 CtdlLogPrintf(CTDL_DEBUG, "...fail\n");
765 * Start up the chkpwd daemon so validpw() has something to talk to
767 void start_chkpwd_daemon(void) {
769 struct stat filestats;
772 CtdlLogPrintf(CTDL_DEBUG, "Starting chkpwd daemon for host authentication mode\n");
774 if ((stat(file_chkpwd, &filestats)==-1) ||
775 (filestats.st_size==0)){
776 printf("didn't find chkpwd daemon in %s: %s\n", file_chkpwd, strerror(errno));
779 if (pipe(chkpwd_write_pipe) != 0) {
780 CtdlLogPrintf(CTDL_EMERG, "Unable to create pipe for chkpwd daemon: %s\n", strerror(errno));
783 if (pipe(chkpwd_read_pipe) != 0) {
784 CtdlLogPrintf(CTDL_EMERG, "Unable to create pipe for chkpwd daemon: %s\n", strerror(errno));
789 if (chkpwd_pid < 0) {
790 CtdlLogPrintf(CTDL_EMERG, "Unable to fork chkpwd daemon: %s\n", strerror(errno));
793 if (chkpwd_pid == 0) {
794 CtdlLogPrintf(CTDL_DEBUG, "Now calling dup2() write\n");
795 dup2(chkpwd_write_pipe[0], 0);
796 CtdlLogPrintf(CTDL_DEBUG, "Now calling dup2() write\n");
797 dup2(chkpwd_read_pipe[1], 1);
798 CtdlLogPrintf(CTDL_DEBUG, "Now closing stuff\n");
799 for (i=2; i<256; ++i) close(i);
800 CtdlLogPrintf(CTDL_DEBUG, "Now calling execl(%s)\n", file_chkpwd);
801 execl(file_chkpwd, file_chkpwd, NULL);
802 CtdlLogPrintf(CTDL_EMERG, "Unable to exec chkpwd daemon: %s\n", strerror(errno));
816 int CtdlTryPassword(char *password)
820 if ((CC->logged_in)) {
821 CtdlLogPrintf(CTDL_WARNING, "CtdlTryPassword: already logged in\n");
822 return pass_already_logged_in;
824 if (!strcmp(CC->curr_user, NLI)) {
825 CtdlLogPrintf(CTDL_WARNING, "CtdlTryPassword: no user selected\n");
828 if (getuser(&CC->user, CC->curr_user)) {
829 CtdlLogPrintf(CTDL_ERR, "CtdlTryPassword: internal error\n");
830 return pass_internal_error;
832 if (password == NULL) {
833 CtdlLogPrintf(CTDL_INFO, "CtdlTryPassword: NULL password string supplied\n");
834 return pass_wrong_password;
839 code = strcmp(password, config.c_master_pass);
842 else if (config.c_auth_mode == AUTHMODE_HOST) {
846 if (validpw(CC->user.uid, password)) {
850 * sooper-seekrit hack: populate the password field in the
851 * citadel database with the password that the user typed,
852 * if it's correct. This allows most sites to convert from
853 * host auth to native auth if they want to. If you think
854 * this is a security hazard, comment it out.
857 lgetuser(&CC->user, CC->curr_user);
858 safestrncpy(CC->user.password, password, sizeof CC->user.password);
862 * (sooper-seekrit hack ends here)
873 /* native auth mode */
876 strproc(CC->user.password);
877 code = strcasecmp(CC->user.password, password);
879 strproc(CC->user.password);
880 code = strcasecmp(CC->user.password, password);
887 CtdlLogPrintf(CTDL_WARNING, "Bad password specified for <%s>\n", CC->curr_user);
888 return pass_wrong_password;
893 void cmd_pass(char *buf)
898 extract_token(password, buf, 0, '|', sizeof password);
899 a = CtdlTryPassword(password);
902 case pass_already_logged_in:
903 cprintf("%d Already logged in.\n", ERROR + ALREADY_LOGGED_IN);
906 cprintf("%d You must send a name with USER first.\n",
907 ERROR + USERNAME_REQUIRED);
909 case pass_wrong_password:
910 cprintf("%d Wrong password.\n", ERROR + PASSWORD_REQUIRED);
913 logged_in_response();
921 * Delete a user record *and* all of its related resources.
923 int purge_user(char pname[])
926 struct ctdluser usbuf;
927 char usernamekey[USERNAME_SIZE];
928 struct CitContext *ccptr;
929 int user_is_logged_in = 0;
931 makeuserkey(usernamekey, pname);
933 /* If the name is empty we can't find them in the DB any way so just return */
934 if (IsEmptyStr(pname))
935 return (ERROR + NO_SUCH_USER);
937 if (getuser(&usbuf, pname) != 0) {
938 CtdlLogPrintf(CTDL_ERR, "Cannot purge user <%s> - not found\n", pname);
939 return (ERROR + NO_SUCH_USER);
941 /* Don't delete a user who is currently logged in. Instead, just
942 * set the access level to 0, and let the account get swept up
943 * during the next purge.
945 user_is_logged_in = 0;
946 begin_critical_section(S_SESSION_TABLE);
947 for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
948 if (ccptr->user.usernum == usbuf.usernum) {
949 user_is_logged_in = 1;
952 end_critical_section(S_SESSION_TABLE);
953 if (user_is_logged_in == 1) {
954 CtdlLogPrintf(CTDL_WARNING, "User <%s> is logged in; not deleting.\n", pname);
959 CtdlLogPrintf(CTDL_NOTICE, "Deleting user <%s>\n", pname);
961 /* Perform any purge functions registered by server extensions */
962 PerformUserHooks(&usbuf, EVT_PURGEUSER);
964 /* delete any existing user/room relationships */
965 cdb_delete(CDB_VISIT, &usbuf.usernum, sizeof(long));
967 /* delete the users-by-number index record */
968 cdb_delete(CDB_USERSBYNUMBER, &usbuf.usernum, sizeof(long));
970 /* delete the userlog entry */
971 cdb_delete(CDB_USERS, usernamekey, strlen(usernamekey));
973 /* remove the user's bio file */
981 /* remove the user's picture */
994 * create_user() - back end processing to create a new user
996 * Set 'newusername' to the desired account name.
997 * Set 'become_user' to nonzero if this is self-service account creation and we want
998 * to actually log in as the user we just created, otherwise set it to 0.
1000 int create_user(char *newusername, int become_user)
1002 struct ctdluser usbuf;
1003 struct ctdlroom qrbuf;
1005 char mailboxname[ROOMNAMELEN];
1009 safestrncpy(username, newusername, sizeof username);
1012 if (config.c_auth_mode == AUTHMODE_HOST) {
1014 /* host auth mode */
1017 struct passwd *tempPwdPtr;
1018 char pwdbuffer[256];
1020 #ifdef HAVE_GETPWNAM_R
1021 #ifdef SOLARIS_GETPWUID
1022 tempPwdPtr = getpwnam_r(username, &pd, pwdbuffer, sizeof(pwdbuffer));
1023 #else // SOLARIS_GETPWUID
1024 getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer, &tempPwdPtr);
1025 #endif // SOLARIS_GETPWUID
1026 #else // HAVE_GETPWNAM_R
1028 #endif // HAVE_GETPWNAM_R
1029 if (tempPwdPtr != NULL) {
1030 extract_token(username, pd.pw_gecos, 0, ',', sizeof username);
1032 if (IsEmptyStr (username))
1034 CtdlLogPrintf (CTDL_EMERG,
1035 "Can't find Realname for user %s [%d] in the Host Auth Database; giving up.\n",
1036 newusername, pd.pw_uid);
1038 "Can't find Realname for user %s [%d] in the Host Auth Database; giving up.\n",
1039 newusername, pd.pw_uid);
1040 aide_message(buf, "User Creation Failure Notice");
1045 return (ERROR + NO_SUCH_USER);
1049 if (!getuser(&usbuf, username)) {
1050 return (ERROR + ALREADY_EXISTS);
1053 /* Go ahead and initialize a new user record */
1054 memset(&usbuf, 0, sizeof(struct ctdluser));
1055 safestrncpy(usbuf.fullname, username, sizeof usbuf.fullname);
1056 strcpy(usbuf.password, "");
1059 /* These are the default flags on new accounts */
1060 usbuf.flags = US_LASTOLD | US_DISAPPEAR | US_PAGINATOR | US_FLOORS;
1062 usbuf.timescalled = 0;
1064 usbuf.axlevel = config.c_initax;
1065 usbuf.USscreenwidth = 80;
1066 usbuf.USscreenheight = 24;
1067 usbuf.lastcall = time(NULL);
1069 /* fetch a new user number */
1070 usbuf.usernum = get_new_user_number();
1072 /* The very first user created on the system will always be an Aide */
1073 if (usbuf.usernum == 1L) {
1077 /* add user to the database */
1079 cdb_store(CDB_USERSBYNUMBER, &usbuf.usernum, sizeof(long), usbuf.fullname, strlen(usbuf.fullname)+1);
1082 * Give the user a private mailbox and a configuration room.
1083 * Make the latter an invisible system room.
1085 MailboxName(mailboxname, sizeof mailboxname, &usbuf, MAILROOM);
1086 create_room(mailboxname, 5, "", 0, 1, 1, VIEW_MAILBOX);
1088 MailboxName(mailboxname, sizeof mailboxname, &usbuf, USERCONFIGROOM);
1089 create_room(mailboxname, 5, "", 0, 1, 1, VIEW_BBS);
1090 if (lgetroom(&qrbuf, mailboxname) == 0) {
1091 qrbuf.QRflags2 |= QR2_SYSTEM;
1095 /* Perform any create functions registered by server extensions */
1096 PerformUserHooks(&usbuf, EVT_NEWUSER);
1098 /* Everything below this line can be bypassed if administratively
1099 * creating a user, instead of doing self-service account creation
1103 /* Now become the user we just created */
1104 memcpy(&CC->user, &usbuf, sizeof(struct ctdluser));
1105 safestrncpy(CC->curr_user, username, sizeof CC->curr_user);
1108 /* Check to make sure we're still who we think we are */
1109 if (getuser(&CC->user, CC->curr_user)) {
1110 return (ERROR + INTERNAL_ERROR);
1115 "New user account <%s> has been created, from host %s [%s].\n",
1120 aide_message(buf, "User Creation Notice");
1121 CtdlLogPrintf(CTDL_NOTICE, "New user <%s> created\n", username);
1129 * cmd_newu() - create a new user account and log in as that user
1131 void cmd_newu(char *cmdbuf)
1136 if (config.c_auth_mode != AUTHMODE_NATIVE) {
1137 cprintf("%d This system does not use native mode authentication.\n",
1142 if (config.c_disable_newu) {
1143 cprintf("%d Self-service user account creation "
1144 "is disabled on this system.\n", ERROR + NOT_HERE);
1148 if (CC->logged_in) {
1149 cprintf("%d Already logged in.\n", ERROR + ALREADY_LOGGED_IN);
1153 cprintf("%d %s: Too many users are already online (maximum is %d)\n",
1154 ERROR + MAX_SESSIONS_EXCEEDED,
1155 config.c_nodename, config.c_maxsessions);
1157 extract_token(username, cmdbuf, 0, '|', sizeof username);
1161 if (IsEmptyStr(username)) {
1162 cprintf("%d You must supply a user name.\n", ERROR + USERNAME_REQUIRED);
1166 if ((!strcasecmp(username, "bbs")) ||
1167 (!strcasecmp(username, "new")) ||
1168 (!strcasecmp(username, "."))) {
1169 cprintf("%d '%s' is an invalid login name.\n", ERROR + ILLEGAL_VALUE, username);
1173 a = create_user(username, 1);
1177 logged_in_response();
1178 } else if (a == ERROR + ALREADY_EXISTS) {
1179 cprintf("%d '%s' already exists.\n",
1180 ERROR + ALREADY_EXISTS, username);
1182 } else if (a == ERROR + INTERNAL_ERROR) {
1183 cprintf("%d Internal error - user record disappeared?\n",
1184 ERROR + INTERNAL_ERROR);
1187 cprintf("%d unknown error\n", ERROR + INTERNAL_ERROR);
1196 void cmd_setp(char *new_pw)
1198 if (CtdlAccessCheck(ac_logged_in)) {
1201 if ( (CC->user.uid != CTDLUID) && (CC->user.uid != (-1)) ) {
1202 cprintf("%d Not allowed. Use the 'passwd' command.\n", ERROR + NOT_HERE);
1205 if (CC->is_master) {
1206 cprintf("%d The master prefix password cannot be changed with this command.\n",
1211 if (IsEmptyStr(new_pw)) {
1212 cprintf("%d Password unchanged.\n", CIT_OK);
1215 lgetuser(&CC->user, CC->curr_user);
1216 safestrncpy(CC->user.password, new_pw, sizeof(CC->user.password));
1217 lputuser(&CC->user);
1218 cprintf("%d Password changed.\n", CIT_OK);
1219 CtdlLogPrintf(CTDL_INFO, "Password changed for user <%s>\n", CC->curr_user);
1220 PerformSessionHooks(EVT_SETPASS);
1225 * cmd_creu() - administratively create a new user account (do not log in to it)
1227 void cmd_creu(char *cmdbuf)
1232 struct ctdluser tmp;
1234 if (CtdlAccessCheck(ac_aide)) {
1238 extract_token(username, cmdbuf, 0, '|', sizeof username);
1239 extract_token(password, cmdbuf, 1, '|', sizeof password);
1245 if (IsEmptyStr(username)) {
1246 cprintf("%d You must supply a user name.\n", ERROR + USERNAME_REQUIRED);
1250 a = create_user(username, 0);
1253 if (!IsEmptyStr(password)) {
1254 lgetuser(&tmp, username);
1255 safestrncpy(tmp.password, password, sizeof(tmp.password));
1258 cprintf("%d User '%s' created %s.\n", CIT_OK, username,
1259 (!IsEmptyStr(password)) ? "and password set" :
1260 "with no password");
1262 } else if (a == ERROR + ALREADY_EXISTS) {
1263 cprintf("%d '%s' already exists.\n", ERROR + ALREADY_EXISTS, username);
1265 } else if ( (config.c_auth_mode != AUTHMODE_NATIVE) && (a == ERROR + NO_SUCH_USER) ) {
1266 cprintf("%d User accounts are not created within Citadel in host authentication mode.\n",
1267 ERROR + NO_SUCH_USER);
1270 cprintf("%d An error occurred creating the user account.\n", ERROR + INTERNAL_ERROR);
1277 * get user parameters
1282 if (CtdlAccessCheck(ac_logged_in))
1285 getuser(&CC->user, CC->curr_user);
1286 cprintf("%d %d|%d|%d|\n",
1288 CC->user.USscreenwidth,
1289 CC->user.USscreenheight,
1290 (CC->user.flags & US_USER_SET)
1295 * set user parameters
1297 void cmd_setu(char *new_parms)
1299 if (CtdlAccessCheck(ac_logged_in))
1302 if (num_parms(new_parms) < 3) {
1303 cprintf("%d Usage error.\n", ERROR + ILLEGAL_VALUE);
1306 lgetuser(&CC->user, CC->curr_user);
1307 CC->user.USscreenwidth = extract_int(new_parms, 0);
1308 CC->user.USscreenheight = extract_int(new_parms, 1);
1309 CC->user.flags = CC->user.flags & (~US_USER_SET);
1310 CC->user.flags = CC->user.flags |
1311 (extract_int(new_parms, 2) & US_USER_SET);
1313 lputuser(&CC->user);
1314 cprintf("%d Ok\n", CIT_OK);
1318 * set last read pointer
1320 void cmd_slrp(char *new_ptr)
1324 struct visit original_vbuf;
1326 if (CtdlAccessCheck(ac_logged_in)) {
1330 if (!strncasecmp(new_ptr, "highest", 7)) {
1331 newlr = CC->room.QRhighest;
1333 newlr = atol(new_ptr);
1336 lgetuser(&CC->user, CC->curr_user);
1338 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
1339 memcpy(&original_vbuf, &vbuf, sizeof(struct visit));
1340 vbuf.v_lastseen = newlr;
1341 snprintf(vbuf.v_seen, sizeof vbuf.v_seen, "*:%ld", newlr);
1343 /* Only rewrite the record if it changed */
1344 if ( (vbuf.v_lastseen != original_vbuf.v_lastseen)
1345 || (strcmp(vbuf.v_seen, original_vbuf.v_seen)) ) {
1346 CtdlSetRelationship(&vbuf, &CC->user, &CC->room);
1349 lputuser(&CC->user);
1350 cprintf("%d %ld\n", CIT_OK, newlr);
1354 void cmd_seen(char *argbuf) {
1355 long target_msgnum = 0L;
1356 int target_setting = 0;
1358 if (CtdlAccessCheck(ac_logged_in)) {
1362 if (num_parms(argbuf) != 2) {
1363 cprintf("%d Invalid parameters\n", ERROR + ILLEGAL_VALUE);
1367 target_msgnum = extract_long(argbuf, 0);
1368 target_setting = extract_int(argbuf, 1);
1370 CtdlSetSeen(&target_msgnum, 1, target_setting,
1371 ctdlsetseen_seen, NULL, NULL);
1372 cprintf("%d OK\n", CIT_OK);
1376 void cmd_gtsn(char *argbuf) {
1379 if (CtdlAccessCheck(ac_logged_in)) {
1383 CtdlGetSeen(buf, ctdlsetseen_seen);
1384 cprintf("%d %s\n", CIT_OK, buf);
1389 * API function for cmd_invt_kick() and anything else that needs to
1390 * invite or kick out a user to/from a room.
1392 * Set iuser to the name of the user, and op to 1=invite or 0=kick
1394 int CtdlInvtKick(char *iuser, int op) {
1395 struct ctdluser USscratch;
1399 if (getuser(&USscratch, iuser) != 0) {
1403 CtdlGetRelationship(&vbuf, &USscratch, &CC->room);
1405 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
1406 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
1409 vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
1410 vbuf.v_flags = vbuf.v_flags | V_FORGET | V_LOCKOUT;
1412 CtdlSetRelationship(&vbuf, &USscratch, &CC->room);
1414 /* post a message in Aide> saying what we just did */
1415 snprintf(bbb, sizeof bbb, "%s has been %s \"%s\" by %s.\n",
1417 ((op == 1) ? "invited to" : "kicked out of"),
1420 aide_message(bbb,"User Admin Message");
1427 * INVT and KICK commands
1429 void cmd_invt_kick(char *iuser, int op) {
1432 * These commands are only allowed by aides, room aides,
1433 * and room namespace owners
1436 || (atol(CC->room.QRname) == CC->user.usernum) ) {
1437 /* access granted */
1440 cprintf("%d Higher access or room ownership required.\n",
1441 ERROR + HIGHER_ACCESS_REQUIRED);
1445 if (!strncasecmp(CC->room.QRname, config.c_baseroom,
1447 cprintf("%d Can't add/remove users from this room.\n",
1452 if (CtdlInvtKick(iuser, op) != 0) {
1453 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1457 cprintf("%d %s %s %s.\n",
1459 ((op == 1) ? "invited to" : "kicked out of"),
1466 * Forget (Zap) the current room (API call)
1467 * Returns 0 on success
1469 int CtdlForgetThisRoom(void) {
1472 /* On some systems, Aides are not allowed to forget rooms */
1473 if (is_aide() && (config.c_aide_zap == 0)
1474 && ((CC->room.QRflags & QR_MAILBOX) == 0) ) {
1478 lgetuser(&CC->user, CC->curr_user);
1479 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
1481 vbuf.v_flags = vbuf.v_flags | V_FORGET;
1482 vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
1484 CtdlSetRelationship(&vbuf, &CC->user, &CC->room);
1485 lputuser(&CC->user);
1487 /* Return to the Lobby, so we don't end up in an undefined room */
1488 usergoto(config.c_baseroom, 0, 0, NULL, NULL);
1495 * forget (Zap) the current room
1500 if (CtdlAccessCheck(ac_logged_in)) {
1504 if (CtdlForgetThisRoom() == 0) {
1505 cprintf("%d Ok\n", CIT_OK);
1508 cprintf("%d You may not forget this room.\n", ERROR + NOT_HERE);
1513 * Get Next Unregistered User
1517 struct cdbdata *cdbus;
1518 struct ctdluser usbuf;
1520 if (CtdlAccessCheck(ac_aide)) {
1524 if ((CitControl.MMflags & MM_VALID) == 0) {
1525 cprintf("%d There are no unvalidated users.\n", CIT_OK);
1529 /* There are unvalidated users. Traverse the user database,
1530 * and return the first user we find that needs validation.
1532 cdb_rewind(CDB_USERS);
1533 while (cdbus = cdb_next_item(CDB_USERS), cdbus != NULL) {
1534 memset(&usbuf, 0, sizeof(struct ctdluser));
1535 memcpy(&usbuf, cdbus->ptr,
1536 ((cdbus->len > sizeof(struct ctdluser)) ?
1537 sizeof(struct ctdluser) : cdbus->len));
1539 if ((usbuf.flags & US_NEEDVALID)
1540 && (usbuf.axlevel > 0)) {
1541 cprintf("%d %s\n", MORE_DATA, usbuf.fullname);
1542 cdb_close_cursor(CDB_USERS);
1547 /* If we get to this point, there are no more unvalidated users.
1548 * Therefore we clear the "users need validation" flag.
1551 begin_critical_section(S_CONTROL);
1553 CitControl.MMflags = CitControl.MMflags & (~MM_VALID);
1555 end_critical_section(S_CONTROL);
1556 cprintf("%d *** End of registration.\n", CIT_OK);
1565 void cmd_vali(char *v_args)
1569 struct ctdluser userbuf;
1571 extract_token(user, v_args, 0, '|', sizeof user);
1572 newax = extract_int(v_args, 1);
1574 if (CtdlAccessCheck(ac_aide)) {
1578 if (lgetuser(&userbuf, user) != 0) {
1579 cprintf("%d '%s' not found.\n", ERROR + NO_SUCH_USER, user);
1583 userbuf.axlevel = newax;
1584 userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
1588 /* If the access level was set to zero, delete the user */
1590 if (purge_user(user) == 0) {
1591 cprintf("%d %s Deleted.\n", CIT_OK, userbuf.fullname);
1595 cprintf("%d User '%s' validated.\n", CIT_OK, userbuf.fullname);
1601 * Traverse the user file...
1603 void ForEachUser(void (*CallBack) (struct ctdluser * EachUser, void *out_data),
1606 struct ctdluser usbuf;
1607 struct cdbdata *cdbus;
1609 cdb_rewind(CDB_USERS);
1611 while (cdbus = cdb_next_item(CDB_USERS), cdbus != NULL) {
1612 memset(&usbuf, 0, sizeof(struct ctdluser));
1613 memcpy(&usbuf, cdbus->ptr,
1614 ((cdbus->len > sizeof(struct ctdluser)) ?
1615 sizeof(struct ctdluser) : cdbus->len));
1617 (*CallBack) (&usbuf, in_data);
1623 * List one user (this works with cmd_list)
1625 void ListThisUser(struct ctdluser *usbuf, void *data)
1629 searchstring = (char *)data;
1630 if (bmstrcasestr(usbuf->fullname, searchstring) == NULL) {
1634 if (usbuf->axlevel > 0) {
1635 if ((CC->user.axlevel >= 6)
1636 || ((usbuf->flags & US_UNLISTED) == 0)
1637 || ((CC->internal_pgm))) {
1638 cprintf("%s|%d|%ld|%ld|%ld|%ld|",
1642 (long)usbuf->lastcall,
1645 if (CC->user.axlevel >= 6)
1646 cprintf("%s", usbuf->password);
1653 * List users (searchstring may be empty to list all users)
1655 void cmd_list(char *cmdbuf)
1657 char searchstring[256];
1658 extract_token(searchstring, cmdbuf, 0, '|', sizeof searchstring);
1659 striplt(searchstring);
1660 cprintf("%d \n", LISTING_FOLLOWS);
1661 ForEachUser(ListThisUser, (void *)searchstring );
1669 * assorted info we need to check at login
1677 if (CtdlAccessCheck(ac_logged_in)) {
1681 getuser(&CC->user, CC->curr_user); /* no lock is needed here */
1682 if ((REGISCALL != 0) && ((CC->user.flags & US_REGIS) == 0))
1685 if (CC->user.axlevel >= 6) {
1687 if (CitControl.MMflags & MM_VALID)
1691 /* check for mail */
1692 mail = InitialMailCheck();
1694 cprintf("%d %d|%d|%d|%s|\n", CIT_OK, mail, regis, vali, CC->cs_inet_email);
1699 * check to see if a user exists
1701 void cmd_qusr(char *who)
1703 struct ctdluser usbuf;
1705 if (getuser(&usbuf, who) == 0) {
1706 cprintf("%d %s\n", CIT_OK, usbuf.fullname);
1708 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1714 * Administrative Get User Parameters
1716 void cmd_agup(char *cmdbuf)
1718 struct ctdluser usbuf;
1719 char requested_user[128];
1721 if (CtdlAccessCheck(ac_aide)) {
1725 extract_token(requested_user, cmdbuf, 0, '|', sizeof requested_user);
1726 if (getuser(&usbuf, requested_user) != 0) {
1727 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1730 cprintf("%d %s|%s|%u|%ld|%ld|%d|%ld|%ld|%d\n",
1737 (int) usbuf.axlevel,
1739 (long)usbuf.lastcall,
1746 * Administrative Set User Parameters
1748 void cmd_asup(char *cmdbuf)
1750 struct ctdluser usbuf;
1751 char requested_user[128];
1757 if (CtdlAccessCheck(ac_aide))
1760 extract_token(requested_user, cmdbuf, 0, '|', sizeof requested_user);
1761 if (lgetuser(&usbuf, requested_user) != 0) {
1762 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1765 np = num_parms(cmdbuf);
1767 extract_token(usbuf.password, cmdbuf, 1, '|', sizeof usbuf.password);
1769 usbuf.flags = extract_int(cmdbuf, 2);
1771 usbuf.timescalled = extract_int(cmdbuf, 3);
1773 usbuf.posted = extract_int(cmdbuf, 4);
1775 newax = extract_int(cmdbuf, 5);
1776 if ((newax >= 0) && (newax <= 6)) {
1777 usbuf.axlevel = extract_int(cmdbuf, 5);
1781 usbuf.lastcall = extract_long(cmdbuf, 7);
1784 usbuf.USuserpurge = extract_int(cmdbuf, 8);
1787 if (usbuf.axlevel == 0) {
1788 if (purge_user(requested_user) == 0) {
1794 snprintf(notify, SIZ,
1795 "User \"%s\" has been deleted by %s.\n",
1796 usbuf.fullname, CC->user.fullname);
1797 aide_message(notify, "User Deletion Message");
1800 cprintf("%d Ok", CIT_OK);
1802 cprintf(" (%s deleted)", requested_user);
1809 * Check to see if the user who we just sent mail to is logged in. If yes,
1810 * bump the 'new mail' counter for their session. That enables them to
1811 * receive a new mail notification without having to hit the database.
1813 void BumpNewMailCounter(long which_user) {
1814 struct CitContext *ptr;
1816 begin_critical_section(S_SESSION_TABLE);
1818 for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
1819 if (ptr->user.usernum == which_user) {
1824 end_critical_section(S_SESSION_TABLE);
1829 * Count the number of new mail messages the user has
1833 int num_newmsgs = 0;
1835 num_newmsgs = CC->newmail;
1838 return (num_newmsgs);
1843 * Count the number of new mail messages the user has
1845 int InitialMailCheck()
1847 int num_newmsgs = 0;
1849 char mailboxname[ROOMNAMELEN];
1850 struct ctdlroom mailbox;
1852 struct cdbdata *cdbfr;
1853 long *msglist = NULL;
1856 MailboxName(mailboxname, sizeof mailboxname, &CC->user, MAILROOM);
1857 if (getroom(&mailbox, mailboxname) != 0)
1859 CtdlGetRelationship(&vbuf, &CC->user, &mailbox);
1861 cdbfr = cdb_fetch(CDB_MSGLISTS, &mailbox.QRnumber, sizeof(long));
1863 if (cdbfr != NULL) {
1864 msglist = malloc(cdbfr->len);
1865 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1866 num_msgs = cdbfr->len / sizeof(long);
1870 for (a = 0; a < num_msgs; ++a) {
1871 if (msglist[a] > 0L) {
1872 if (msglist[a] > vbuf.v_lastseen) {
1877 if (msglist != NULL)
1880 return (num_newmsgs);
1886 * Set the preferred view for the current user/room combination
1888 void cmd_view(char *cmdbuf) {
1892 if (CtdlAccessCheck(ac_logged_in)) {
1896 requested_view = extract_int(cmdbuf, 0);
1898 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
1899 vbuf.v_view = requested_view;
1900 CtdlSetRelationship(&vbuf, &CC->user, &CC->room);
1902 cprintf("%d ok\n", CIT_OK);
1909 void cmd_renu(char *cmdbuf)
1912 char oldname[USERNAME_SIZE];
1913 char newname[USERNAME_SIZE];
1915 if (CtdlAccessCheck(ac_aide)) {
1919 extract_token(oldname, cmdbuf, 0, '|', sizeof oldname);
1920 extract_token(newname, cmdbuf, 1, '|', sizeof newname);
1922 retcode = rename_user(oldname, newname);
1925 cprintf("%d '%s' has been renamed to '%s'.\n", CIT_OK, oldname, newname);
1927 case RENAMEUSER_LOGGED_IN:
1928 cprintf("%d '%s' is currently logged in and cannot be renamed.\n",
1929 ERROR + ALREADY_LOGGED_IN , oldname);
1931 case RENAMEUSER_NOT_FOUND:
1932 cprintf("%d '%s' does not exist.\n", ERROR + NO_SUCH_USER, oldname);
1934 case RENAMEUSER_ALREADY_EXISTS:
1935 cprintf("%d A user named '%s' already exists.\n", ERROR + ALREADY_EXISTS, newname);
1939 cprintf("%d An unknown error occurred.\n", ERROR);