2 * Server functions which perform operations on user objects.
4 * Copyright (c) 1987-2017 by the citadel.org team
6 * This program is open source software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License, version 3.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
20 #include <libcitadel.h>
23 #include "citserver.h"
25 #include "citadel_ldap.h"
26 #include "ctdl_module.h"
28 #include "internet_addressing.h"
30 /* These pipes are used to talk to the chkpwd daemon, which is forked during startup */
31 int chkpwd_write_pipe[2];
32 int chkpwd_read_pipe[2];
36 * CtdlGetUser() - retrieve named user into supplied buffer.
37 * returns 0 on success
39 int CtdlGetUserLen(struct ctdluser *usbuf, const char *name, long len)
41 char usernamekey[USERNAME_SIZE];
42 struct cdbdata *cdbus;
45 memset(usbuf, 0, sizeof(struct ctdluser));
48 makeuserkey(usernamekey, name, len);
49 cdbus = cdb_fetch(CDB_USERS, usernamekey, strlen(usernamekey));
51 if (cdbus == NULL) { /* user not found */
55 memcpy(usbuf, cdbus->ptr,
56 ((cdbus->len > sizeof(struct ctdluser)) ?
57 sizeof(struct ctdluser) : cdbus->len));
65 int CtdlGetUser(struct ctdluser *usbuf, char *name)
67 return CtdlGetUserLen(usbuf, name, cutuserkey(name));
71 int CtdlLockGetCurrentUser(void)
74 return CtdlGetUserLen(&CCC->user, CCC->curr_user, cutuserkey(CCC->curr_user));
79 * CtdlGetUserLock() - same as getuser() but locks the record
81 int CtdlGetUserLock(struct ctdluser *usbuf, char *name)
85 retcode = CtdlGetUser(usbuf, name);
87 begin_critical_section(S_USERS);
94 * CtdlPutUser() - write user buffer into the correct place on disk
96 void CtdlPutUser(struct ctdluser *usbuf)
98 char usernamekey[USERNAME_SIZE];
100 makeuserkey(usernamekey, usbuf->fullname, cutuserkey(usbuf->fullname));
101 usbuf->version = REV_LEVEL;
102 cdb_store(CDB_USERS, usernamekey, strlen(usernamekey), usbuf, sizeof(struct ctdluser));
106 void CtdlPutCurrentUserLock()
108 CtdlPutUser(&CC->user);
113 * CtdlPutUserLock() - same as putuser() but locks the record
115 void CtdlPutUserLock(struct ctdluser *usbuf)
118 end_critical_section(S_USERS);
123 * rename_user() - this is tricky because the user's display name is the database key
125 * Returns 0 on success or nonzero if there was an error...
128 int rename_user(char *oldname, char *newname) {
129 int retcode = RENAMEUSER_OK;
130 struct ctdluser usbuf;
132 char oldnamekey[USERNAME_SIZE];
133 char newnamekey[USERNAME_SIZE];
135 /* Create the database keys... */
136 makeuserkey(oldnamekey, oldname, cutuserkey(oldname));
137 makeuserkey(newnamekey, newname, cutuserkey(newname));
139 /* Lock up and get going */
140 begin_critical_section(S_USERS);
142 /* We cannot rename a user who is currently logged in */
143 if (CtdlIsUserLoggedIn(oldname)) {
144 end_critical_section(S_USERS);
145 return RENAMEUSER_LOGGED_IN;
148 if (CtdlGetUser(&usbuf, newname) == 0) {
149 retcode = RENAMEUSER_ALREADY_EXISTS;
153 if (CtdlGetUser(&usbuf, oldname) != 0) {
154 retcode = RENAMEUSER_NOT_FOUND;
157 else { /* Sanity checks succeeded. Now rename the user. */
158 if (usbuf.usernum == 0)
160 syslog(LOG_DEBUG, "user_ops: can not rename user \"Citadel\".");
161 retcode = RENAMEUSER_NOT_FOUND;
163 syslog(LOG_DEBUG, "user_ops: renaming <%s> to <%s>", oldname, newname);
164 cdb_delete(CDB_USERS, oldnamekey, strlen(oldnamekey));
165 safestrncpy(usbuf.fullname, newname, sizeof usbuf.fullname);
167 cdb_store(CDB_USERSBYNUMBER, &usbuf.usernum, sizeof(long), usbuf.fullname, strlen(usbuf.fullname)+1 );
168 retcode = RENAMEUSER_OK;
174 end_critical_section(S_USERS);
180 * Index-generating function used by Ctdl[Get|Set]Relationship
182 int GenerateRelationshipIndex(char *IndexBuf,
194 TheIndex.iRoomID = RoomID;
195 TheIndex.iRoomGen = RoomGen;
196 TheIndex.iUserID = UserID;
198 memcpy(IndexBuf, &TheIndex, sizeof(TheIndex));
199 return (sizeof(TheIndex));
204 * Back end for CtdlSetRelationship()
206 void put_visit(visit *newvisit)
211 memset (IndexBuf, 0, sizeof (IndexBuf));
212 /* Generate an index */
213 IndexLen = GenerateRelationshipIndex(IndexBuf, newvisit->v_roomnum, newvisit->v_roomgen, newvisit->v_usernum);
215 /* Store the record */
216 cdb_store(CDB_VISIT, IndexBuf, IndexLen,
217 newvisit, sizeof(visit)
223 * Define a relationship between a user and a room
225 void CtdlSetRelationship(visit *newvisit,
226 struct ctdluser *rel_user,
227 struct ctdlroom *rel_room)
229 /* We don't use these in Citadel because they're implicit by the
230 * index, but they must be present if the database is exported.
232 newvisit->v_roomnum = rel_room->QRnumber;
233 newvisit->v_roomgen = rel_room->QRgen;
234 newvisit->v_usernum = rel_user->usernum;
241 * Locate a relationship between a user and a room
243 void CtdlGetRelationship(visit *vbuf,
244 struct ctdluser *rel_user,
245 struct ctdlroom *rel_room)
249 struct cdbdata *cdbvisit;
251 /* Generate an index */
252 IndexLen = GenerateRelationshipIndex(IndexBuf,
257 /* Clear out the buffer */
258 memset(vbuf, 0, sizeof(visit));
260 cdbvisit = cdb_fetch(CDB_VISIT, IndexBuf, IndexLen);
261 if (cdbvisit != NULL) {
262 memcpy(vbuf, cdbvisit->ptr,
263 ((cdbvisit->len > sizeof(visit)) ?
264 sizeof(visit) : cdbvisit->len));
268 /* If this is the first time the user has seen this room,
269 * set the view to be the default for the room.
271 vbuf->v_view = rel_room->QRdefaultview;
274 /* Set v_seen if necessary */
275 if (vbuf->v_seen[0] == 0) {
276 snprintf(vbuf->v_seen, sizeof vbuf->v_seen, "*:%ld", vbuf->v_lastseen);
281 void CtdlMailboxName(char *buf, size_t n, const struct ctdluser *who, const char *prefix)
283 snprintf(buf, n, "%010ld.%s", who->usernum, prefix);
287 void MailboxName(char *buf, size_t n, const struct ctdluser *who, const char *prefix)
289 snprintf(buf, n, "%010ld.%s", who->usernum, prefix);
294 * Check to see if the specified user has Internet mail permission
295 * (returns nonzero if permission is granted)
297 int CtdlCheckInternetMailPermission(struct ctdluser *who) {
299 /* Do not allow twits to send Internet mail */
300 if (who->axlevel <= AxProbU) return(0);
302 /* Globally enabled? */
303 if (CtdlGetConfigInt("c_restrict") == 0) return(1);
305 /* User flagged ok? */
306 if (who->flags & US_INTERNET) return(2);
308 /* Admin level access? */
309 if (who->axlevel >= AxAideU) return(3);
311 /* No mail for you! */
317 * Convenience function.
319 int CtdlAccessCheck(int required_level)
321 if (CC->internal_pgm) return(0);
322 if (required_level >= ac_internal) {
323 cprintf("%d This is not a user-level command.\n", ERROR + HIGHER_ACCESS_REQUIRED);
327 if ((required_level >= ac_logged_in_or_guest) && (CC->logged_in == 0) && (CtdlGetConfigInt("c_guest_logins") == 0)) {
328 cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
332 if ((required_level >= ac_logged_in) && (CC->logged_in == 0)) {
333 cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
337 if (CC->user.axlevel >= AxAideU) return(0);
338 if (required_level >= ac_aide) {
339 cprintf("%d This command requires Admin access.\n",
340 ERROR + HIGHER_ACCESS_REQUIRED);
344 if (is_room_aide()) return(0);
345 if (required_level >= ac_room_aide) {
346 cprintf("%d This command requires Admin or Room Admin access.\n",
347 ERROR + HIGHER_ACCESS_REQUIRED);
351 /* shhh ... succeed quietly */
357 * Is the user currently logged in an Admin?
361 if (CC->user.axlevel >= AxAideU)
369 * Is the user currently logged in an Admin *or* the room Admin for this room?
371 int is_room_aide(void)
374 if (!CC->logged_in) {
378 if ((CC->user.axlevel >= AxAideU)
379 || (CC->room.QRroomaide == CC->user.usernum)) {
388 * CtdlGetUserByNumber() - get user by number
389 * returns 0 if user was found
391 * Note: fetching a user this way requires one additional database operation.
393 int CtdlGetUserByNumber(struct ctdluser *usbuf, long number)
395 struct cdbdata *cdbun;
398 cdbun = cdb_fetch(CDB_USERSBYNUMBER, &number, sizeof(long));
400 syslog(LOG_INFO, "user_ops: %ld not found", number);
404 syslog(LOG_INFO, "user_ops: %ld maps to %s", number, cdbun->ptr);
405 r = CtdlGetUser(usbuf, cdbun->ptr);
412 * Helper function for rebuild_usersbynumber()
414 void rebuild_ubn_for_user(struct ctdluser *usbuf, void *data) {
417 struct ubnlist *next;
418 char username[USERNAME_SIZE];
422 static struct ubnlist *u = NULL;
423 struct ubnlist *ptr = NULL;
425 /* Lazy programming here. Call this function as a ForEachUser backend
426 * in order to queue up the room names, or call it with a null user
427 * to make it do the processing.
430 ptr = (struct ubnlist *) malloc(sizeof (struct ubnlist));
431 if (ptr == NULL) return;
433 ptr->usernum = usbuf->usernum;
434 safestrncpy(ptr->username, usbuf->fullname, sizeof ptr->username);
441 syslog(LOG_DEBUG, "user_ops: rebuilding usersbynumber index %10ld : %s", u->usernum, u->username);
442 cdb_store(CDB_USERSBYNUMBER, &u->usernum, sizeof(long), u->username, strlen(u->username)+1);
451 * Rebuild the users-by-number index
453 void rebuild_usersbynumber(void) {
454 cdb_trunc(CDB_USERSBYNUMBER); /* delete the old indices */
455 ForEachUser(rebuild_ubn_for_user, NULL); /* enumerate the users */
456 rebuild_ubn_for_user(NULL, NULL); /* and index them */
461 * getuserbyuid() - get user by system uid (for PAM mode authentication)
462 * returns 0 if user was found
464 * WARNING: don't use this function unless you absolutely have to. It does
465 * a sequential search and therefore is computationally expensive.
467 * FIXME: build an index, dummy.
469 int getuserbyuid(struct ctdluser *usbuf, uid_t number)
471 struct cdbdata *cdbus;
473 cdb_rewind(CDB_USERS);
475 while (cdbus = cdb_next_item(CDB_USERS), cdbus != NULL) {
476 memset(usbuf, 0, sizeof(struct ctdluser));
477 memcpy(usbuf, cdbus->ptr,
478 ((cdbus->len > sizeof(struct ctdluser)) ?
479 sizeof(struct ctdluser) : cdbus->len));
481 if (usbuf->uid == number) {
482 cdb_close_cursor(CDB_USERS);
491 * Back end for cmd_user() and its ilk
493 * NOTE: "authname" should only be used if we are attempting to use the "master user" feature
495 int CtdlLoginExistingUser(char *authname, const char *trythisname)
501 syslog(LOG_DEBUG, "user_ops: CtdlLoginExistingUser(%s, %s)", authname, trythisname);
503 if ((CC->logged_in)) {
504 return login_already_logged_in;
507 if (trythisname == NULL) return login_not_found;
509 if (!strncasecmp(trythisname, "SYS_", 4))
511 syslog(LOG_DEBUG, "user_ops: system user \"%s\" is not allowed to log in.", trythisname);
512 return login_not_found;
515 /* If a "master user" is defined, handle its authentication if specified */
517 if ( (!IsEmptyStr(CtdlGetConfigStr("c_master_user"))) &&
518 (!IsEmptyStr(CtdlGetConfigStr("c_master_pass"))) &&
519 (authname != NULL) &&
520 (!strcasecmp(authname, CtdlGetConfigStr("c_master_user"))) )
525 /* Continue attempting user validation... */
526 safestrncpy(username, trythisname, sizeof (username));
528 len = cutuserkey(username);
530 if (IsEmptyStr(username)) {
531 return login_not_found;
534 if (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_HOST) {
539 struct passwd *tempPwdPtr;
542 syslog(LOG_DEBUG, "user_ops: asking host about <%s>", username);
543 #ifdef HAVE_GETPWNAM_R
544 #ifdef SOLARIS_GETPWUID
545 syslog(LOG_DEBUG, "user_ops: calling getpwnam_r()");
546 tempPwdPtr = getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer);
547 #else // SOLARIS_GETPWUID
548 syslog(LOG_DEBUG, "user_ops: calling getpwnam_r()");
549 getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer, &tempPwdPtr);
550 #endif // SOLARIS_GETPWUID
551 #else // HAVE_GETPWNAM_R
552 syslog(LOG_DEBUG, "user_ops: SHOULD NEVER GET HERE!!!");
554 #endif // HAVE_GETPWNAM_R
555 if (tempPwdPtr == NULL) {
556 syslog(LOG_DEBUG, "user_ops: no such user <%s>", username);
557 return login_not_found;
560 /* Locate the associated Citadel account.
561 * If not found, make one attempt to create it.
563 found_user = getuserbyuid(&CC->user, pd.pw_uid);
564 syslog(LOG_DEBUG, "user_ops: found it: uid=%ld, gecos=%s here: %d", (long)pd.pw_uid, pd.pw_gecos, found_user);
565 if (found_user != 0) {
566 len = cutuserkey(username);
567 create_user(username, len, 0);
568 found_user = getuserbyuid(&CC->user, pd.pw_uid);
574 else if ((CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP) || (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD)) {
582 found_user = CtdlTryUserLDAP(username, ldap_dn, sizeof ldap_dn, ldap_cn, sizeof ldap_cn, &ldap_uid, 0);
583 if (found_user != 0) {
584 return login_not_found;
587 found_user = getuserbyuid(&CC->user, ldap_uid);
588 if (found_user != 0) {
589 create_user(username, len, 0);
590 found_user = getuserbyuid(&CC->user, ldap_uid);
593 if (found_user == 0) {
594 if (CC->ldap_dn != NULL) free(CC->ldap_dn);
595 CC->ldap_dn = strdup(ldap_dn);
602 /* native auth mode */
604 recptypes *valid = NULL;
606 /* First, try to log in as if the supplied name is a display name */
607 found_user = CtdlGetUser(&CC->user, username);
609 /* If that didn't work, try to log in as if the supplied name
610 * is an e-mail address
612 if (found_user != 0) {
613 valid = validate_recipients(username, NULL, 0);
615 if (valid->num_local == 1) {
616 found_user = CtdlGetUser(&CC->user, valid->recp_local);
618 free_recipients(valid);
623 /* Did we find something? */
624 if (found_user == 0) {
625 if (((CC->nologin)) && (CC->user.axlevel < AxAideU)) {
626 return login_too_many_users;
628 safestrncpy(CC->curr_user, CC->user.fullname, sizeof CC->curr_user);
632 return login_not_found;
637 * session startup code which is common to both cmd_pass() and cmd_newu()
641 struct CitContext *CCC = CC;
644 syslog(LOG_NOTICE, "user_ops: <%s> logged in", CCC->curr_user);
646 CtdlGetUserLock(&CCC->user, CCC->curr_user);
647 ++(CCC->user.timescalled);
648 CCC->previous_login = CCC->user.lastcall;
649 time(&CCC->user.lastcall);
651 /* If this user's name is the name of the system administrator
652 * (as specified in setup), automatically assign access level 6.
654 if (!strcasecmp(CCC->user.fullname, CtdlGetConfigStr("c_sysadm"))) {
655 CCC->user.axlevel = AxAideU;
658 /* If we're authenticating off the host system, automatically give
659 * root the highest level of access.
661 if (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_HOST) {
662 if (CCC->user.uid == 0) {
663 CCC->user.axlevel = AxAideU;
668 * If we are using LDAP authentication, extract the user's email addresses from the directory.
669 * FIXME make this a site configurable setting
672 if ((CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP) || (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD)) {
673 char new_emailaddrs[512];
674 if (extract_email_addresses_from_ldap(CCC->ldap_dn, new_emailaddrs) == 0) {
675 strcpy(CCC->user.emailaddrs, new_emailaddrs);
681 * No email address for user? Make one up.
683 if (IsEmptyStr(CCC->user.emailaddrs)) {
684 sprintf(CCC->user.emailaddrs, "cit%ld@%s", CCC->user.usernum, CtdlGetConfigStr("c_fqdn"));
687 CtdlPutUserLock(&CCC->user);
690 * Populate cs_inet_email and cs_inet_other_emails with valid email addresses from the user record
692 strcpy(CCC->cs_inet_email, CCC->user.emailaddrs);
693 char *firstsep = strstr(CCC->cs_inet_email, "|");
695 strcpy(CCC->cs_inet_other_emails, firstsep+1);
699 CCC->cs_inet_other_emails[0] = 0;
702 /* Create any personal rooms required by the system.
703 * (Technically, MAILROOM should be there already, but just in case...)
705 CtdlCreateRoom(MAILROOM, 4, "", 0, 1, 0, VIEW_MAILBOX);
706 CtdlCreateRoom(SENTITEMS, 4, "", 0, 1, 0, VIEW_MAILBOX);
707 CtdlCreateRoom(USERTRASHROOM, 4, "", 0, 1, 0, VIEW_MAILBOX);
708 CtdlCreateRoom(USERDRAFTROOM, 4, "", 0, 1, 0, VIEW_MAILBOX);
710 /* Run any startup routines registered by loadable modules */
711 PerformSessionHooks(EVT_LOGIN);
713 /* Enter the lobby */
714 CtdlUserGoto(CtdlGetConfigStr("c_baseroom"), 0, 0, NULL, NULL, NULL, NULL);
718 void logged_in_response(void)
720 cprintf("%d %s|%d|%ld|%ld|%u|%ld|%ld\n",
721 CIT_OK, CC->user.fullname, CC->user.axlevel,
722 CC->user.timescalled, CC->user.posted,
723 CC->user.flags, CC->user.usernum,
729 void CtdlUserLogout(void)
731 CitContext *CCC = MyContext();
733 syslog(LOG_DEBUG, "user_ops: CtdlUserLogout() logging out <%s> from session %d", CCC->curr_user, CCC->cs_pid);
735 /* Run any hooks registered by modules... */
736 PerformSessionHooks(EVT_LOGOUT);
739 * Clear out some session data. Most likely, the CitContext for this
740 * session is about to get nuked when the session disconnects, but
741 * since it's possible to log in again without reconnecting, we cannot
742 * make that assumption.
744 strcpy(CCC->fake_username, "");
745 strcpy(CCC->fake_hostname, "");
746 strcpy(CCC->fake_roomname, "");
749 /* Check to see if the user was deleted whilst logged in and purge them if necessary */
750 if ((CCC->user.axlevel == AxDeleted) && (CCC->user.usernum)) {
751 purge_user(CCC->user.fullname);
754 /* Clear out the user record in memory so we don't behave like a ghost */
755 memset(&CCC->user, 0, sizeof(struct ctdluser));
756 CCC->curr_user[0] = 0;
758 CCC->cs_inet_email[0] = 0;
759 CCC->cs_inet_other_emails[0] = 0;
760 CCC->cs_inet_fn[0] = 0;
761 CCC->fake_username[0] = 0;
762 CCC->fake_hostname[0] = 0;
763 CCC->fake_roomname[0] = 0;
765 /* Free any output buffers */
771 * Validate a password on the host unix system by talking to the chkpwd daemon
773 static int validpw(uid_t uid, const char *pass)
778 if (IsEmptyStr(pass)) {
779 syslog(LOG_DEBUG, "user_ops: refusing to chkpwd for uid=%d with empty password", uid);
783 syslog(LOG_DEBUG, "user_ops: validating password for uid=%d using chkpwd...", uid);
785 begin_critical_section(S_CHKPWD);
786 rv = write(chkpwd_write_pipe[1], &uid, sizeof(uid_t));
788 syslog(LOG_ERR, "user_ops: communication with chkpwd broken: %m");
789 end_critical_section(S_CHKPWD);
792 rv = write(chkpwd_write_pipe[1], pass, 256);
794 syslog(LOG_ERR, "user_ops: communication with chkpwd broken: %m");
795 end_critical_section(S_CHKPWD);
798 rv = read(chkpwd_read_pipe[0], buf, 4);
800 syslog(LOG_ERR, "user_ops: ommunication with chkpwd broken: %m");
801 end_critical_section(S_CHKPWD);
804 end_critical_section(S_CHKPWD);
806 if (!strncmp(buf, "PASS", 4)) {
807 syslog(LOG_DEBUG, "user_ops: chkpwd pass");
811 syslog(LOG_DEBUG, "user_ops: chkpwd fail");
817 * Start up the chkpwd daemon so validpw() has something to talk to
819 void start_chkpwd_daemon(void) {
821 struct stat filestats;
824 syslog(LOG_DEBUG, "user_ops: starting chkpwd daemon for host authentication mode");
826 if ((stat(file_chkpwd, &filestats)==-1) || (filestats.st_size==0)) {
827 syslog(LOG_ERR, "user_ops: %s: %m", file_chkpwd);
830 if (pipe(chkpwd_write_pipe) != 0) {
831 syslog(LOG_ERR, "user_ops: unable to create pipe for chkpwd daemon: %m");
834 if (pipe(chkpwd_read_pipe) != 0) {
835 syslog(LOG_ERR, "user_ops: unable to create pipe for chkpwd daemon: %m");
840 if (chkpwd_pid < 0) {
841 syslog(LOG_ERR, "user_ops: unable to fork chkpwd daemon: %m");
844 if (chkpwd_pid == 0) {
845 dup2(chkpwd_write_pipe[0], 0);
846 dup2(chkpwd_read_pipe[1], 1);
847 for (i=2; i<256; ++i) close(i);
848 execl(file_chkpwd, file_chkpwd, NULL);
849 syslog(LOG_ERR, "user_ops: unable to exec chkpwd daemon: %m");
856 int CtdlTryPassword(const char *password, long len)
859 CitContext *CCC = CC;
861 if ((CCC->logged_in)) {
862 syslog(LOG_WARNING, "user_ops: CtdlTryPassword: already logged in");
863 return pass_already_logged_in;
865 if (!strcmp(CCC->curr_user, NLI)) {
866 syslog(LOG_WARNING, "user_ops: CtdlTryPassword: no user selected");
869 if (CtdlGetUser(&CCC->user, CCC->curr_user)) {
870 syslog(LOG_ERR, "user_ops: CtdlTryPassword: internal error");
871 return pass_internal_error;
873 if (password == NULL) {
874 syslog(LOG_INFO, "user_ops: CtdlTryPassword: NULL password string supplied");
875 return pass_wrong_password;
878 if (CCC->is_master) {
879 code = strcmp(password, CtdlGetConfigStr("c_master_pass"));
882 else if (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_HOST) {
886 if (validpw(CCC->user.uid, password)) {
890 * sooper-seekrit hack: populate the password field in the
891 * citadel database with the password that the user typed,
892 * if it's correct. This allows most sites to convert from
893 * host auth to native auth if they want to. If you think
894 * this is a security hazard, comment it out.
897 CtdlGetUserLock(&CCC->user, CCC->curr_user);
898 safestrncpy(CCC->user.password, password, sizeof CCC->user.password);
899 CtdlPutUserLock(&CCC->user);
902 * (sooper-seekrit hack ends here)
911 else if ((CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP) || (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD)) {
915 if ((CCC->ldap_dn) && (!CtdlTryPasswordLDAP(CCC->ldap_dn, password))) {
926 /* native auth mode */
929 pw = (char*) malloc(len + 1);
930 memcpy(pw, password, len + 1);
932 strproc(CCC->user.password);
933 code = strcasecmp(CCC->user.password, pw);
936 strproc(CCC->user.password);
937 code = strcasecmp(CCC->user.password, pw);
947 syslog(LOG_WARNING, "user_ops: bad password specified for <%s> Service <%s> Port <%ld> Remote <%s / %s>",
954 return pass_wrong_password;
960 * Delete a user record *and* all of its related resources.
962 int purge_user(char pname[])
964 struct ctdluser usbuf;
965 char usernamekey[USERNAME_SIZE];
967 makeuserkey(usernamekey, pname, cutuserkey(pname));
969 /* If the name is empty we can't find them in the DB any way so just return */
970 if (IsEmptyStr(pname))
971 return (ERROR + NO_SUCH_USER);
973 if (CtdlGetUser(&usbuf, pname) != 0) {
974 syslog(LOG_ERR, "user_ops: cannot purge user <%s> - not found", pname);
975 return (ERROR + NO_SUCH_USER);
977 /* Don't delete a user who is currently logged in. Instead, just
978 * set the access level to 0, and let the account get swept up
979 * during the next purge.
981 if (CtdlIsUserLoggedInByNum(usbuf.usernum)) {
982 syslog(LOG_WARNING, "user_ops: <%s> is logged in; not deleting", pname);
983 usbuf.axlevel = AxDeleted;
987 syslog(LOG_NOTICE, "user_ops: deleting <%s>", pname);
991 * This should all be wrapped in a S_USERS mutex.
992 * Without the mutex the user could log in before we get to the next function
993 * That would truly mess things up :-(
994 * I would like to see the S_USERS start before the CtdlIsUserLoggedInByNum() above
995 * and end after the user has been deleted from the database, below.
996 * Question is should we enter the EVT_PURGEUSER while S_USERS is active?
999 /* Perform any purge functions registered by server extensions */
1000 PerformUserHooks(&usbuf, EVT_PURGEUSER);
1002 /* delete any existing user/room relationships */
1003 cdb_delete(CDB_VISIT, &usbuf.usernum, sizeof(long));
1005 /* delete the users-by-number index record */
1006 cdb_delete(CDB_USERSBYNUMBER, &usbuf.usernum, sizeof(long));
1008 /* delete the userlog entry */
1009 cdb_delete(CDB_USERS, usernamekey, strlen(usernamekey));
1015 int internal_create_user (const char *username, long len, struct ctdluser *usbuf, uid_t uid)
1017 if (!CtdlGetUserLen(usbuf, username, len)) {
1018 return (ERROR + ALREADY_EXISTS);
1021 /* Go ahead and initialize a new user record */
1022 memset(usbuf, 0, sizeof(struct ctdluser));
1023 safestrncpy(usbuf->fullname, username, sizeof usbuf->fullname);
1024 strcpy(usbuf->password, "");
1027 /* These are the default flags on new accounts */
1028 usbuf->flags = US_LASTOLD | US_DISAPPEAR | US_PAGINATOR | US_FLOORS;
1030 usbuf->timescalled = 0;
1032 usbuf->axlevel = CtdlGetConfigInt("c_initax");
1033 usbuf->lastcall = time(NULL);
1035 /* fetch a new user number */
1036 usbuf->usernum = get_new_user_number();
1038 /* add user to the database */
1040 cdb_store(CDB_USERSBYNUMBER, &usbuf->usernum, sizeof(long), usbuf->fullname, strlen(usbuf->fullname)+1);
1047 * create_user() - back end processing to create a new user
1049 * Set 'newusername' to the desired account name.
1050 * Set 'become_user' to nonzero if this is self-service account creation and we want
1051 * to actually log in as the user we just created, otherwise set it to 0.
1053 int create_user(const char *newusername, long len, int become_user)
1055 struct ctdluser usbuf;
1056 struct ctdlroom qrbuf;
1058 char mailboxname[ROOMNAMELEN];
1063 safestrncpy(username, newusername, sizeof username);
1066 if (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_HOST) {
1068 /* host auth mode */
1071 struct passwd *tempPwdPtr;
1072 char pwdbuffer[SIZ];
1074 #ifdef HAVE_GETPWNAM_R
1075 #ifdef SOLARIS_GETPWUID
1076 tempPwdPtr = getpwnam_r(username, &pd, pwdbuffer, sizeof(pwdbuffer));
1077 #else // SOLARIS_GETPWUID
1078 getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer, &tempPwdPtr);
1079 #endif // SOLARIS_GETPWUID
1080 #else // HAVE_GETPWNAM_R
1082 #endif // HAVE_GETPWNAM_R
1083 if (tempPwdPtr != NULL) {
1084 extract_token(username, pd.pw_gecos, 0, ',', sizeof username);
1086 if (IsEmptyStr (username))
1088 safestrncpy(username, pd.pw_name, sizeof username);
1089 len = cutuserkey(username);
1093 return (ERROR + NO_SUCH_USER);
1098 if ((CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP) || (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD)) {
1099 if (CtdlTryUserLDAP(username, NULL, 0, username, sizeof username, &uid, 0) != 0) {
1100 return(ERROR + NO_SUCH_USER);
1103 #endif /* HAVE_LDAP */
1105 if ((retval = internal_create_user(username, len, &usbuf, uid)) != 0)
1109 * Give the user a private mailbox and a configuration room.
1110 * Make the latter an invisible system room.
1112 CtdlMailboxName(mailboxname, sizeof mailboxname, &usbuf, MAILROOM);
1113 CtdlCreateRoom(mailboxname, 5, "", 0, 1, 1, VIEW_MAILBOX);
1115 CtdlMailboxName(mailboxname, sizeof mailboxname, &usbuf, USERCONFIGROOM);
1116 CtdlCreateRoom(mailboxname, 5, "", 0, 1, 1, VIEW_BBS);
1117 if (CtdlGetRoomLock(&qrbuf, mailboxname) == 0) {
1118 qrbuf.QRflags2 |= QR2_SYSTEM;
1119 CtdlPutRoomLock(&qrbuf);
1122 /* Perform any create functions registered by server extensions */
1123 PerformUserHooks(&usbuf, EVT_NEWUSER);
1125 /* Everything below this line can be bypassed if administratively
1126 * creating a user, instead of doing self-service account creation
1130 /* Now become the user we just created */
1131 memcpy(&CC->user, &usbuf, sizeof(struct ctdluser));
1132 safestrncpy(CC->curr_user, username, sizeof CC->curr_user);
1135 /* Check to make sure we're still who we think we are */
1136 if (CtdlGetUser(&CC->user, CC->curr_user)) {
1137 return (ERROR + INTERNAL_ERROR);
1142 "New user account <%s> has been created, from host %s [%s].\n",
1147 CtdlAideMessage(buf, "User Creation Notice");
1148 syslog(LOG_NOTICE, "user_ops: <%s> created", username);
1154 * set password - back end api code
1156 void CtdlSetPassword(char *new_pw)
1158 CtdlGetUserLock(&CC->user, CC->curr_user);
1159 safestrncpy(CC->user.password, new_pw, sizeof(CC->user.password));
1160 CtdlPutUserLock(&CC->user);
1161 syslog(LOG_INFO, "user_ops: password changed for <%s>", CC->curr_user);
1162 PerformSessionHooks(EVT_SETPASS);
1167 * API function for cmd_invt_kick() and anything else that needs to
1168 * invite or kick out a user to/from a room.
1170 * Set iuser to the name of the user, and op to 1=invite or 0=kick
1172 int CtdlInvtKick(char *iuser, int op) {
1173 struct ctdluser USscratch;
1177 if (CtdlGetUser(&USscratch, iuser) != 0) {
1181 CtdlGetRelationship(&vbuf, &USscratch, &CC->room);
1183 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
1184 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
1187 vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
1188 vbuf.v_flags = vbuf.v_flags | V_FORGET | V_LOCKOUT;
1190 CtdlSetRelationship(&vbuf, &USscratch, &CC->room);
1192 /* post a message in Aide> saying what we just did */
1193 snprintf(bbb, sizeof bbb, "%s has been %s \"%s\" by %s.\n",
1195 ((op == 1) ? "invited to" : "kicked out of"),
1197 (CC->logged_in ? CC->user.fullname : "an administrator")
1199 CtdlAideMessage(bbb,"User Admin Message");
1206 * Forget (Zap) the current room (API call)
1207 * Returns 0 on success
1209 int CtdlForgetThisRoom(void) {
1212 /* On some systems, Admins are not allowed to forget rooms */
1213 if (is_aide() && (CtdlGetConfigInt("c_aide_zap") == 0)
1214 && ((CC->room.QRflags & QR_MAILBOX) == 0) ) {
1218 CtdlGetUserLock(&CC->user, CC->curr_user);
1219 CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
1221 vbuf.v_flags = vbuf.v_flags | V_FORGET;
1222 vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
1224 CtdlSetRelationship(&vbuf, &CC->user, &CC->room);
1225 CtdlPutUserLock(&CC->user);
1227 /* Return to the Lobby, so we don't end up in an undefined room */
1228 CtdlUserGoto(CtdlGetConfigStr("c_baseroom"), 0, 0, NULL, NULL, NULL, NULL);
1235 * Traverse the user file...
1237 void ForEachUser(void (*CallBack) (struct ctdluser * EachUser, void *out_data),
1240 struct ctdluser usbuf;
1241 struct cdbdata *cdbus;
1243 cdb_rewind(CDB_USERS);
1245 while (cdbus = cdb_next_item(CDB_USERS), cdbus != NULL) {
1246 memset(&usbuf, 0, sizeof(struct ctdluser));
1247 memcpy(&usbuf, cdbus->ptr,
1248 ((cdbus->len > sizeof(struct ctdluser)) ?
1249 sizeof(struct ctdluser) : cdbus->len));
1251 (*CallBack) (&usbuf, in_data);
1257 * List one user (this works with cmd_list)
1259 void ListThisUser(struct ctdluser *usbuf, void *data)
1263 searchstring = (char *)data;
1264 if (bmstrcasestr(usbuf->fullname, searchstring) == NULL) {
1268 if (usbuf->axlevel > AxDeleted) {
1269 if ((CC->user.axlevel >= AxAideU)
1270 || ((usbuf->flags & US_UNLISTED) == 0)
1271 || ((CC->internal_pgm))) {
1272 cprintf("%s|%d|%ld|%ld|%ld|%ld||\n",
1276 (long)usbuf->lastcall,
1285 * Count the number of new mail messages the user has
1289 int num_newmsgs = 0;
1291 num_newmsgs = CC->newmail;
1294 return (num_newmsgs);
1299 * Count the number of new mail messages the user has
1301 int InitialMailCheck()
1303 int num_newmsgs = 0;
1305 char mailboxname[ROOMNAMELEN];
1306 struct ctdlroom mailbox;
1308 struct cdbdata *cdbfr;
1309 long *msglist = NULL;
1312 CtdlMailboxName(mailboxname, sizeof mailboxname, &CC->user, MAILROOM);
1313 if (CtdlGetRoom(&mailbox, mailboxname) != 0)
1315 CtdlGetRelationship(&vbuf, &CC->user, &mailbox);
1317 cdbfr = cdb_fetch(CDB_MSGLISTS, &mailbox.QRnumber, sizeof(long));
1319 if (cdbfr != NULL) {
1320 msglist = malloc(cdbfr->len);
1321 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1322 num_msgs = cdbfr->len / sizeof(long);
1326 for (a = 0; a < num_msgs; ++a) {
1327 if (msglist[a] > 0L) {
1328 if (msglist[a] > vbuf.v_lastseen) {
1333 if (msglist != NULL)
1336 return (num_newmsgs);