/*
* Server functions which perform operations on user objects.
*
* Copyright (c) 1987-2011 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 as published
* by the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "sysdep.h"
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <signal.h>
#include <pwd.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <syslog.h>
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#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
#include <string.h>
#include <limits.h>
#include <libcitadel.h>
#include "auth.h"
#include "citadel.h"
#include "server.h"
#include "database.h"
#include "sysdep_decls.h"
#include "support.h"
#include "room_ops.h"
#include "file_ops.h"
#include "control.h"
#include "msgbase.h"
#include "config.h"
#include "citserver.h"
#include "citadel_dirs.h"
#include "genstamp.h"
#include "threads.h"
#include "citadel_ldap.h"
#include "context.h"
#include "ctdl_module.h"
#include "user_ops.h"
/* These pipes are used to talk to the chkpwd daemon, which is forked during startup */
int chkpwd_write_pipe[2];
int chkpwd_read_pipe[2];
/*
* getuser() - retrieve named user into supplied buffer.
* returns 0 on success
*/
int getuser(struct ctdluser *usbuf, char name[])
{
return CtdlGetUser(usbuf, name);
}
/*
* CtdlGetUser() - retrieve named user into supplied buffer.
* returns 0 on success
*/
int CtdlGetUserLen(struct ctdluser *usbuf, const char *name, long len)
{
char usernamekey[USERNAME_SIZE];
struct cdbdata *cdbus;
if (usbuf != NULL) {
memset(usbuf, 0, sizeof(struct ctdluser));
}
makeuserkey(usernamekey, name, len);
cdbus = cdb_fetch(CDB_USERS, usernamekey, strlen(usernamekey));
if (cdbus == NULL) { /* user not found */
return(1);
}
if (usbuf != NULL) {
memcpy(usbuf, cdbus->ptr,
((cdbus->len > sizeof(struct ctdluser)) ?
sizeof(struct ctdluser) : cdbus->len));
}
cdb_free(cdbus);
return (0);
}
int CtdlGetUser(struct ctdluser *usbuf, char *name)
{
return CtdlGetUserLen(usbuf, name, cutuserkey(name));
}
/*
* CtdlGetUserLock() - same as getuser() but locks the record
*/
int CtdlGetUserLock(struct ctdluser *usbuf, char *name)
{
int retcode;
retcode = CtdlGetUser(usbuf, name);
if (retcode == 0) {
begin_critical_section(S_USERS);
}
return (retcode);
}
/*
* lgetuser() - same as getuser() but locks the record
*/
int lgetuser(struct ctdluser *usbuf, char *name)
{
return CtdlGetUserLock(usbuf, name);
}
/*
* CtdlPutUser() - write user buffer into the correct place on disk
*/
void CtdlPutUser(struct ctdluser *usbuf)
{
char usernamekey[USERNAME_SIZE];
makeuserkey(usernamekey,
usbuf->fullname,
cutuserkey(usbuf->fullname));
usbuf->version = REV_LEVEL;
cdb_store(CDB_USERS,
usernamekey, strlen(usernamekey),
usbuf, sizeof(struct ctdluser));
}
/*
* putuser() - write user buffer into the correct place on disk
*/
void putuser(struct ctdluser *usbuf)
{
CtdlPutUser(usbuf);
}
/*
* CtdlPutUserLock() - same as putuser() but locks the record
*/
void CtdlPutUserLock(struct ctdluser *usbuf)
{
CtdlPutUser(usbuf);
end_critical_section(S_USERS);
}
/*
* lputuser() - same as putuser() but locks the record
*/
void lputuser(struct ctdluser *usbuf)
{
CtdlPutUserLock(usbuf);
}
/*
* rename_user() - this is tricky because the user's display name is the database key
*
* Returns 0 on success or nonzero if there was an error...
*
*/
int rename_user(char *oldname, char *newname) {
int retcode = RENAMEUSER_OK;
struct ctdluser usbuf;
char oldnamekey[USERNAME_SIZE];
char newnamekey[USERNAME_SIZE];
/* Create the database keys... */
makeuserkey(oldnamekey, oldname, cutuserkey(oldname));
makeuserkey(newnamekey, newname, cutuserkey(newname));
/* Lock up and get going */
begin_critical_section(S_USERS);
/* We cannot rename a user who is currently logged in */
if (CtdlIsUserLoggedIn(oldname)) {
end_critical_section(S_USERS);
return RENAMEUSER_LOGGED_IN;
}
if (CtdlGetUser(&usbuf, newname) == 0) {
retcode = RENAMEUSER_ALREADY_EXISTS;
}
else {
if (CtdlGetUser(&usbuf, oldname) != 0) {
retcode = RENAMEUSER_NOT_FOUND;
}
else { /* Sanity checks succeeded. Now rename the user. */
if (usbuf.usernum == 0)
{
CONM_syslog(LOG_DEBUG, "Can not rename user \"Citadel\".\n");
retcode = RENAMEUSER_NOT_FOUND;
} else {
CON_syslog(LOG_DEBUG, "Renaming <%s> to <%s>\n", oldname, newname);
cdb_delete(CDB_USERS, oldnamekey, strlen(oldnamekey));
safestrncpy(usbuf.fullname, newname, sizeof usbuf.fullname);
CtdlPutUser(&usbuf);
cdb_store(CDB_USERSBYNUMBER, &usbuf.usernum, sizeof(long),
usbuf.fullname, strlen(usbuf.fullname)+1 );
retcode = RENAMEUSER_OK;
}
}
}
end_critical_section(S_USERS);
return(retcode);
}
/*
* Index-generating function used by Ctdl[Get|Set]Relationship
*/
int GenerateRelationshipIndex(char *IndexBuf,
long RoomID,
long RoomGen,
long UserID)
{
struct {
long iRoomID;
long iRoomGen;
long iUserID;
} TheIndex;
TheIndex.iRoomID = RoomID;
TheIndex.iRoomGen = RoomGen;
TheIndex.iUserID = UserID;
memcpy(IndexBuf, &TheIndex, sizeof(TheIndex));
return (sizeof(TheIndex));
}
/*
* Back end for CtdlSetRelationship()
*/
void put_visit(visit *newvisit)
{
char IndexBuf[32];
int IndexLen = 0;
memset (IndexBuf, 0, sizeof (IndexBuf));
/* Generate an index */
IndexLen = GenerateRelationshipIndex(IndexBuf,
newvisit->v_roomnum,
newvisit->v_roomgen,
newvisit->v_usernum);
/* Store the record */
cdb_store(CDB_VISIT, IndexBuf, IndexLen,
newvisit, sizeof(visit)
);
}
/*
* Define a relationship between a user and a room
*/
void CtdlSetRelationship(visit *newvisit,
struct ctdluser *rel_user,
struct ctdlroom *rel_room)
{
/* We don't use these in Citadel because they're implicit by the
* index, but they must be present if the database is exported.
*/
newvisit->v_roomnum = rel_room->QRnumber;
newvisit->v_roomgen = rel_room->QRgen;
newvisit->v_usernum = rel_user->usernum;
put_visit(newvisit);
}
/*
* Locate a relationship between a user and a room
*/
void CtdlGetRelationship(visit *vbuf,
struct ctdluser *rel_user,
struct ctdlroom *rel_room)
{
char IndexBuf[32];
int IndexLen;
struct cdbdata *cdbvisit;
/* Generate an index */
IndexLen = GenerateRelationshipIndex(IndexBuf,
rel_room->QRnumber,
rel_room->QRgen,
rel_user->usernum);
/* Clear out the buffer */
memset(vbuf, 0, sizeof(visit));
cdbvisit = cdb_fetch(CDB_VISIT, IndexBuf, IndexLen);
if (cdbvisit != NULL) {
memcpy(vbuf, cdbvisit->ptr,
((cdbvisit->len > sizeof(visit)) ?
sizeof(visit) : cdbvisit->len));
cdb_free(cdbvisit);
}
else {
/* If this is the first time the user has seen this room,
* set the view to be the default for the room.
*/
vbuf->v_view = rel_room->QRdefaultview;
}
/* Set v_seen if necessary */
if (vbuf->v_seen[0] == 0) {
snprintf(vbuf->v_seen, sizeof vbuf->v_seen, "*:%ld", vbuf->v_lastseen);
}
}
void CtdlMailboxName(char *buf, size_t n, const struct ctdluser *who, const char *prefix)
{
snprintf(buf, n, "%010ld.%s", who->usernum, prefix);
}
void MailboxName(char *buf, size_t n, const struct ctdluser *who, const char *prefix)
{
snprintf(buf, n, "%010ld.%s", who->usernum, prefix);
}
/*
* Is the user currently logged in an Aide?
*/
int is_aide(void)
{
if (CC->user.axlevel >= AxAideU)
return (1);
else
return (0);
}
/*
* Is the user currently logged in an Aide *or* the room aide for this room?
*/
int is_room_aide(void)
{
if (!CC->logged_in) {
return (0);
}
if ((CC->user.axlevel >= AxAideU)
|| (CC->room.QRroomaide == CC->user.usernum)) {
return (1);
} else {
return (0);
}
}
/*
* CtdlGetUserByNumber() - get user by number
* returns 0 if user was found
*
* Note: fetching a user this way requires one additional database operation.
*/
int CtdlGetUserByNumber(struct ctdluser *usbuf, long number)
{
struct cdbdata *cdbun;
int r;
cdbun = cdb_fetch(CDB_USERSBYNUMBER, &number, sizeof(long));
if (cdbun == NULL) {
CON_syslog(LOG_INFO, "User %ld not found\n", number);
return(-1);
}
CON_syslog(LOG_INFO, "User %ld maps to %s\n", number, cdbun->ptr);
r = CtdlGetUser(usbuf, cdbun->ptr);
cdb_free(cdbun);
return(r);
}
/*
* getuserbynumber() - get user by number
* returns 0 if user was found
*
* Note: fetching a user this way requires one additional database operation.
*/
int getuserbynumber(struct ctdluser *usbuf, long number)
{
return CtdlGetUserByNumber(usbuf, number);
}
/*
* Helper function for rebuild_usersbynumber()
*/
void rebuild_ubn_for_user(struct ctdluser *usbuf, void *data) {
struct ubnlist {
struct ubnlist *next;
char username[USERNAME_SIZE];
long usernum;
};
static struct ubnlist *u = NULL;
struct ubnlist *ptr = NULL;
/* Lazy programming here. Call this function as a ForEachUser backend
* in order to queue up the room names, or call it with a null user
* to make it do the processing.
*/
if (usbuf != NULL) {
ptr = (struct ubnlist *) malloc(sizeof (struct ubnlist));
if (ptr == NULL) return;
ptr->usernum = usbuf->usernum;
safestrncpy(ptr->username, usbuf->fullname, sizeof ptr->username);
ptr->next = u;
u = ptr;
return;
}
while (u != NULL) {
CON_syslog(LOG_DEBUG, "Rebuilding usersbynumber index %10ld : %s\n",
u->usernum, u->username);
cdb_store(CDB_USERSBYNUMBER, &u->usernum, sizeof(long), u->username, strlen(u->username)+1);
ptr = u;
u = u->next;
free(ptr);
}
}
/*
* Rebuild the users-by-number index
*/
void rebuild_usersbynumber(void) {
cdb_trunc(CDB_USERSBYNUMBER); /* delete the old indices */
ForEachUser(rebuild_ubn_for_user, NULL); /* enumerate the users */
rebuild_ubn_for_user(NULL, NULL); /* and index them */
}
/*
* getuserbyuid() - get user by system uid (for PAM mode authentication)
* returns 0 if user was found
*
* WARNING: don't use this function unless you absolutely have to. It does
* a sequential search and therefore is computationally expensive.
*/
int getuserbyuid(struct ctdluser *usbuf, uid_t number)
{
struct cdbdata *cdbus;
cdb_rewind(CDB_USERS);
while (cdbus = cdb_next_item(CDB_USERS), cdbus != NULL) {
memset(usbuf, 0, sizeof(struct ctdluser));
memcpy(usbuf, cdbus->ptr,
((cdbus->len > sizeof(struct ctdluser)) ?
sizeof(struct ctdluser) : cdbus->len));
cdb_free(cdbus);
if (usbuf->uid == number) {
cdb_close_cursor(CDB_USERS);
return (0);
}
}
return (-1);
}
/*
* Back end for cmd_user() and its ilk
*
* NOTE: "authname" should only be used if we are attempting to use the "master user" feature
*/
int CtdlLoginExistingUser(char *authname, const char *trythisname)
{
char username[SIZ];
int found_user;
long len;
CON_syslog(LOG_DEBUG, "CtdlLoginExistingUser(%s, %s)\n", authname, trythisname);
if ((CC->logged_in)) {
return login_already_logged_in;
}
if (trythisname == NULL) return login_not_found;
if (!strncasecmp(trythisname, "SYS_", 4))
{
CON_syslog(LOG_DEBUG, "System user \"%s\" is not allowed to log in.\n", trythisname);
return login_not_found;
}
/* If a "master user" is defined, handle its authentication if specified */
CC->is_master = 0;
if (strlen(config.c_master_user) > 0) if (strlen(config.c_master_pass) > 0) if (authname) {
if (!strcasecmp(authname, config.c_master_user)) {
CC->is_master = 1;
}
}
/* Continue attempting user validation... */
safestrncpy(username, trythisname, sizeof (username));
striplt(username);
len = cutuserkey(username);
if (IsEmptyStr(username)) {
return login_not_found;
}
if (config.c_auth_mode == AUTHMODE_HOST) {
/* host auth mode */
struct passwd pd;
struct passwd *tempPwdPtr;
char pwdbuffer[256];
CON_syslog(LOG_DEBUG, "asking host about <%s>\n", username);
#ifdef HAVE_GETPWNAM_R
#ifdef SOLARIS_GETPWUID
CON_syslog(LOG_DEBUG, "Calling getpwnam_r()\n");
tempPwdPtr = getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer);
#else // SOLARIS_GETPWUID
CONM_syslog(LOG_DEBUG, "Calling getpwnam_r()\n");
getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer, &tempPwdPtr);
#endif // SOLARIS_GETPWUID
#else // HAVE_GETPWNAM_R
CON_syslog(LOG_DEBUG, "SHOULD NEVER GET HERE!!!\n");
tempPwdPtr = NULL;
#endif // HAVE_GETPWNAM_R
if (tempPwdPtr == NULL) {
CON_syslog(LOG_DEBUG, "no such user <%s>\n", username);
return login_not_found;
}
/* Locate the associated Citadel account.
* If not found, make one attempt to create it.
*/
found_user = getuserbyuid(&CC->user, pd.pw_uid);
CON_syslog(LOG_DEBUG, "found it: uid=%ld, gecos=%s here: %d\n",
(long)pd.pw_uid, pd.pw_gecos, found_user);
if (found_user != 0) {
len = cutuserkey(username);
create_user(username, len, 0);
found_user = getuserbyuid(&CC->user, pd.pw_uid);
}
}
#ifdef HAVE_LDAP
else if ((config.c_auth_mode == AUTHMODE_LDAP) || (config.c_auth_mode == AUTHMODE_LDAP_AD)) {
/* LDAP auth mode */
uid_t ldap_uid;
char ldap_cn[256];
char ldap_dn[256];
found_user = CtdlTryUserLDAP(username, ldap_dn, sizeof ldap_dn, ldap_cn, sizeof ldap_cn, &ldap_uid);
if (found_user != 0) {
return login_not_found;
}
found_user = getuserbyuid(&CC->user, ldap_uid);
if (found_user != 0) {
create_user(username, len, 0);
found_user = getuserbyuid(&CC->user, ldap_uid);
}
if (found_user == 0) {
if (CC->ldap_dn != NULL) free(CC->ldap_dn);
CC->ldap_dn = strdup(ldap_dn);
}
}
#endif
else {
/* native auth mode */
struct recptypes *valid = NULL;
/* First, try to log in as if the supplied name is a display name */
found_user = CtdlGetUser(&CC->user, username);
/* If that didn't work, try to log in as if the supplied name
* is an e-mail address
*/
if (found_user != 0) {
valid = validate_recipients(username, NULL, 0);
if (valid != NULL) {
if (valid->num_local == 1) {
found_user = CtdlGetUser(&CC->user, valid->recp_local);
}
free_recipients(valid);
}
}
}
/* Did we find something? */
if (found_user == 0) {
if (((CC->nologin)) && (CC->user.axlevel < AxAideU)) {
return login_too_many_users;
} else {
safestrncpy(CC->curr_user, CC->user.fullname,
sizeof CC->curr_user);
return login_ok;
}
}
return login_not_found;
}
/*
* USER cmd
*/
void cmd_user(char *cmdbuf)
{
char username[256];
int a;
CON_syslog(LOG_DEBUG, "cmd_user(%s)\n", cmdbuf);
extract_token(username, cmdbuf, 0, '|', sizeof username);
CON_syslog(LOG_DEBUG, "username: %s\n", username);
striplt(username);
CON_syslog(LOG_DEBUG, "username: %s\n", username);
a = CtdlLoginExistingUser(NULL, username);
switch (a) {
case login_already_logged_in:
cprintf("%d Already logged in.\n", ERROR + ALREADY_LOGGED_IN);
return;
case login_too_many_users:
cprintf("%d %s: "
"Too many users are already online "
"(maximum is %d)\n",
ERROR + MAX_SESSIONS_EXCEEDED,
config.c_nodename, config.c_maxsessions);
return;
case login_ok:
cprintf("%d Password required for %s\n",
MORE_DATA, CC->curr_user);
return;
case login_not_found:
cprintf("%d %s not found.\n", ERROR + NO_SUCH_USER, username);
return;
default:
cprintf("%d Internal error\n", ERROR + INTERNAL_ERROR);
}
}
/*
* session startup code which is common to both cmd_pass() and cmd_newu()
*/
void do_login(void)
{
struct CitContext *CCC = CC;
CCC->logged_in = 1;
CON_syslog(LOG_NOTICE, "<%s> logged in\n", CCC->curr_user);
CtdlGetUserLock(&CCC->user, CCC->curr_user);
++(CCC->user.timescalled);
CCC->previous_login = CCC->user.lastcall;
time(&CCC->user.lastcall);
/* If this user's name is the name of the system administrator
* (as specified in setup), automatically assign access level 6.
*/
if (!strcasecmp(CCC->user.fullname, config.c_sysadm)) {
CCC->user.axlevel = AxAideU;
}
/* If we're authenticating off the host system, automatically give
* root the highest level of access.
*/
if (config.c_auth_mode == AUTHMODE_HOST) {
if (CCC->user.uid == 0) {
CCC->user.axlevel = AxAideU;
}
}
CtdlPutUserLock(&CCC->user);
/*
* Populate CCC->cs_inet_email with a default address. This will be
* overwritten with the user's directory address, if one exists, when
* the vCard module's login hook runs.
*/
snprintf(CCC->cs_inet_email, sizeof CCC->cs_inet_email, "%s@%s",
CCC->user.fullname, config.c_fqdn);
convert_spaces_to_underscores(CCC->cs_inet_email);
/* Create any personal rooms required by the system.
* (Technically, MAILROOM should be there already, but just in case...)
*/
CtdlCreateRoom(MAILROOM, 4, "", 0, 1, 0, VIEW_MAILBOX);
CtdlCreateRoom(SENTITEMS, 4, "", 0, 1, 0, VIEW_MAILBOX);
CtdlCreateRoom(USERTRASHROOM, 4, "", 0, 1, 0, VIEW_MAILBOX);
CtdlCreateRoom(USERDRAFTROOM, 4, "", 0, 1, 0, VIEW_MAILBOX);
/* Run any startup routines registered by loadable modules */
PerformSessionHooks(EVT_LOGIN);
/* Enter the lobby */
CtdlUserGoto(config.c_baseroom, 0, 0, NULL, NULL);
}
void logged_in_response(void)
{
cprintf("%d %s|%d|%ld|%ld|%u|%ld|%ld\n",
CIT_OK, CC->user.fullname, CC->user.axlevel,
CC->user.timescalled, CC->user.posted,
CC->user.flags, CC->user.usernum,
CC->previous_login);
}
void CtdlUserLogout(void)
{
CitContext *CCC = MyContext();
CON_syslog(LOG_DEBUG, "CtdlUserLogout() logging out <%s> from session %d",
CCC->curr_user, CCC->cs_pid
);
/*
* If there is a download in progress, abort it.
*/
if (CCC->download_fp != NULL) {
fclose(CCC->download_fp);
CCC->download_fp = NULL;
}
/*
* If there is an upload in progress, abort it.
*/
if (CCC->upload_fp != NULL) {
abort_upl(CCC);
}
/* Run any hooks registered by modules... */
PerformSessionHooks(EVT_LOGOUT);
/*
* Clear out some session data. Most likely, the CitContext for this
* session is about to get nuked when the session disconnects, but
* since it's possible to log in again without reconnecting, we cannot
* make that assumption.
*/
strcpy(CCC->fake_username, "");
strcpy(CCC->fake_hostname, "");
strcpy(CCC->fake_roomname, "");
CCC->logged_in = 0;
/* Check to see if the user was deleted whilst logged in and purge them if necessary */
if ((CCC->user.axlevel == AxDeleted) && (CCC->user.usernum))
purge_user(CCC->user.fullname);
/* Clear out the user record in memory so we don't behave like a ghost */
memset(&CCC->user, 0, sizeof(struct ctdluser));
CCC->curr_user[0] = 0;
CCC->is_master = 0;
CCC->cs_inet_email[0] = 0;
CCC->cs_inet_other_emails[0] = 0;
CCC->cs_inet_fn[0] = 0;
CCC->fake_username[0] = 0;
CCC->fake_hostname[0] = 0;
CCC->fake_roomname[0] = 0;
/* Free any output buffers */
unbuffer_output();
}
/*
* Validate a password on the host unix system by talking to the chkpwd daemon
*/
static int validpw(uid_t uid, const char *pass)
{
char buf[256];
int rv = 0;
if (IsEmptyStr(pass)) {
CON_syslog(LOG_DEBUG, "Refusing to chkpwd for uid=%d with empty password.\n", uid);
return 0;
}
CON_syslog(LOG_DEBUG, "Validating password for uid=%d using chkpwd...\n", uid);
begin_critical_section(S_CHKPWD);
rv = write(chkpwd_write_pipe[1], &uid, sizeof(uid_t));
if (rv == -1) {
CON_syslog(LOG_EMERG, "Communicatino with chkpwd broken: %s\n", strerror(errno));
end_critical_section(S_CHKPWD);
return 0;
}
rv = write(chkpwd_write_pipe[1], pass, 256);
if (rv == -1) {
CON_syslog(LOG_EMERG, "Communicatino with chkpwd broken: %s\n", strerror(errno));
end_critical_section(S_CHKPWD);
return 0;
}
rv = read(chkpwd_read_pipe[0], buf, 4);
if (rv == -1) {
CON_syslog(LOG_EMERG, "Communicatino with chkpwd broken: %s\n", strerror(errno));
end_critical_section(S_CHKPWD);
return 0;
}
end_critical_section(S_CHKPWD);
if (!strncmp(buf, "PASS", 4)) {
CONM_syslog(LOG_DEBUG, "...pass\n");
return(1);
}
CONM_syslog(LOG_DEBUG, "...fail\n");
return 0;
}
/*
* Start up the chkpwd daemon so validpw() has something to talk to
*/
void start_chkpwd_daemon(void) {
pid_t chkpwd_pid;
struct stat filestats;
int i;
CONM_syslog(LOG_DEBUG, "Starting chkpwd daemon for host authentication mode\n");
if ((stat(file_chkpwd, &filestats)==-1) ||
(filestats.st_size==0)){
printf("didn't find chkpwd daemon in %s: %s\n", file_chkpwd, strerror(errno));
abort();
}
if (pipe(chkpwd_write_pipe) != 0) {
CON_syslog(LOG_EMERG, "Unable to create pipe for chkpwd daemon: %s\n", strerror(errno));
abort();
}
if (pipe(chkpwd_read_pipe) != 0) {
CON_syslog(LOG_EMERG, "Unable to create pipe for chkpwd daemon: %s\n", strerror(errno));
abort();
}
chkpwd_pid = fork();
if (chkpwd_pid < 0) {
CON_syslog(LOG_EMERG, "Unable to fork chkpwd daemon: %s\n", strerror(errno));
abort();
}
if (chkpwd_pid == 0) {
CONM_syslog(LOG_DEBUG, "Now calling dup2() write\n");
dup2(chkpwd_write_pipe[0], 0);
CONM_syslog(LOG_DEBUG, "Now calling dup2() write\n");
dup2(chkpwd_read_pipe[1], 1);
CONM_syslog(LOG_DEBUG, "Now closing stuff\n");
for (i=2; i<256; ++i) close(i);
CON_syslog(LOG_DEBUG, "Now calling execl(%s)\n", file_chkpwd);
execl(file_chkpwd, file_chkpwd, NULL);
CON_syslog(LOG_EMERG, "Unable to exec chkpwd daemon: %s\n", strerror(errno));
abort();
exit(errno);
}
}
int CtdlTryPassword(const char *password, long len)
{
int code;
CitContext *CCC = CC;
if ((CCC->logged_in)) {
CONM_syslog(LOG_WARNING, "CtdlTryPassword: already logged in\n");
return pass_already_logged_in;
}
if (!strcmp(CCC->curr_user, NLI)) {
CONM_syslog(LOG_WARNING, "CtdlTryPassword: no user selected\n");
return pass_no_user;
}
if (CtdlGetUser(&CCC->user, CCC->curr_user)) {
CONM_syslog(LOG_ERR, "CtdlTryPassword: internal error\n");
return pass_internal_error;
}
if (password == NULL) {
CONM_syslog(LOG_INFO, "CtdlTryPassword: NULL password string supplied\n");
return pass_wrong_password;
}
if (CCC->is_master) {
code = strcmp(password, config.c_master_pass);
}
else if (config.c_auth_mode == AUTHMODE_HOST) {
/* host auth mode */
if (validpw(CCC->user.uid, password)) {
code = 0;
/*
* sooper-seekrit hack: populate the password field in the
* citadel database with the password that the user typed,
* if it's correct. This allows most sites to convert from
* host auth to native auth if they want to. If you think
* this is a security hazard, comment it out.
*/
CtdlGetUserLock(&CCC->user, CCC->curr_user);
safestrncpy(CCC->user.password, password, sizeof CCC->user.password);
CtdlPutUserLock(&CCC->user);
/*
* (sooper-seekrit hack ends here)
*/
}
else {
code = (-1);
}
}
#ifdef HAVE_LDAP
else if ((config.c_auth_mode == AUTHMODE_LDAP) || (config.c_auth_mode == AUTHMODE_LDAP_AD)) {
/* LDAP auth mode */
if ((CCC->ldap_dn) && (!CtdlTryPasswordLDAP(CCC->ldap_dn, password))) {
code = 0;
}
else {
code = (-1);
}
}
#endif
else {
/* native auth mode */
char *pw;
pw = (char*) malloc(len + 1);
memcpy(pw, password, len + 1);
strproc(pw);
strproc(CCC->user.password);
code = strcasecmp(CCC->user.password, pw);
if (code != 0) {
strproc(pw);
strproc(CCC->user.password);
code = strcasecmp(CCC->user.password, pw);
}
free (pw);
}
if (!code) {
do_login();
return pass_ok;
} else {
CON_syslog(LOG_WARNING, "Bad password specified for <%s> Service <%s> Port <%ld> Remote <%s / %s>\n",
CCC->curr_user,
CCC->ServiceName,
CCC->tcp_port,
CCC->cs_host,
CCC->cs_addr);
//citserver[5610]: Bad password specified for <willi> Service <citadel-TCP> Remote <PotzBlitz / >
return pass_wrong_password;
}
}
void cmd_pass(char *buf)
{
char password[SIZ];
int a;
long len;
memset(password, 0, sizeof(password));
len = extract_token(password, buf, 0, '|', sizeof password);
a = CtdlTryPassword(password, len);
switch (a) {
case pass_already_logged_in:
cprintf("%d Already logged in.\n", ERROR + ALREADY_LOGGED_IN);
return;
case pass_no_user:
cprintf("%d You must send a name with USER first.\n",
ERROR + USERNAME_REQUIRED);
return;
case pass_wrong_password:
cprintf("%d Wrong password.\n", ERROR + PASSWORD_REQUIRED);
return;
case pass_ok:
logged_in_response();
return;
}
}
/*
* Delete a user record *and* all of its related resources.
*/
int purge_user(char pname[])
{
char filename[64];
struct ctdluser usbuf;
char usernamekey[USERNAME_SIZE];
makeuserkey(usernamekey, pname, cutuserkey(pname));
/* If the name is empty we can't find them in the DB any way so just return */
if (IsEmptyStr(pname))
return (ERROR + NO_SUCH_USER);
if (CtdlGetUser(&usbuf, pname) != 0) {
CON_syslog(LOG_ERR, "Cannot purge user <%s> - not found\n", pname);
return (ERROR + NO_SUCH_USER);
}
/* Don't delete a user who is currently logged in. Instead, just
* set the access level to 0, and let the account get swept up
* during the next purge.
*/
if (CtdlIsUserLoggedInByNum(usbuf.usernum)) {
CON_syslog(LOG_WARNING, "User <%s> is logged in; not deleting.\n", pname);
usbuf.axlevel = AxDeleted;
CtdlPutUser(&usbuf);
return (1);
}
CON_syslog(LOG_NOTICE, "Deleting user <%s>\n", pname);
/*
* FIXME:
* This should all be wrapped in a S_USERS mutex.
* Without the mutex the user could log in before we get to the next function
* That would truly mess things up :-(
* I would like to see the S_USERS start before the CtdlIsUserLoggedInByNum() above
* and end after the user has been deleted from the database, below.
* Question is should we enter the EVT_PURGEUSER whilst S_USERS is active?
*/
/* Perform any purge functions registered by server extensions */
PerformUserHooks(&usbuf, EVT_PURGEUSER);
/* delete any existing user/room relationships */
cdb_delete(CDB_VISIT, &usbuf.usernum, sizeof(long));
/* delete the users-by-number index record */
cdb_delete(CDB_USERSBYNUMBER, &usbuf.usernum, sizeof(long));
/* delete the userlog entry */
cdb_delete(CDB_USERS, usernamekey, strlen(usernamekey));
/* remove the user's bio file */
snprintf(filename,
sizeof filename,
"%s/%ld",
ctdl_bio_dir,
usbuf.usernum);
unlink(filename);
/* remove the user's picture */
snprintf(filename,
sizeof filename,
"%s/%ld.gif",
ctdl_image_dir,
usbuf.usernum);
unlink(filename);
return (0);
}
int internal_create_user (const char *username, long len, struct ctdluser *usbuf, uid_t uid)
{
if (!CtdlGetUserLen(usbuf, username, len)) {
return (ERROR + ALREADY_EXISTS);
}
/* Go ahead and initialize a new user record */
memset(usbuf, 0, sizeof(struct ctdluser));
safestrncpy(usbuf->fullname, username, sizeof usbuf->fullname);
strcpy(usbuf->password, "");
usbuf->uid = uid;
/* These are the default flags on new accounts */
usbuf->flags = US_LASTOLD | US_DISAPPEAR | US_PAGINATOR | US_FLOORS;
usbuf->timescalled = 0;
usbuf->posted = 0;
usbuf->axlevel = config.c_initax;
usbuf->lastcall = time(NULL);
/* fetch a new user number */
usbuf->usernum = get_new_user_number();
/* add user to the database */
CtdlPutUser(usbuf);
cdb_store(CDB_USERSBYNUMBER, &usbuf->usernum, sizeof(long), usbuf->fullname, strlen(usbuf->fullname)+1);
return 0;
}
/*
* create_user() - back end processing to create a new user
*
* Set 'newusername' to the desired account name.
* Set 'become_user' to nonzero if this is self-service account creation and we want
* to actually log in as the user we just created, otherwise set it to 0.
*/
int create_user(const char *newusername, long len, int become_user)
{
struct ctdluser usbuf;
struct ctdlroom qrbuf;
char username[256];
char mailboxname[ROOMNAMELEN];
char buf[SIZ];
int retval;
uid_t uid = (-1);
safestrncpy(username, newusername, sizeof username);
strproc(username);
if (config.c_auth_mode == AUTHMODE_HOST) {
/* host auth mode */
struct passwd pd;
struct passwd *tempPwdPtr;
char pwdbuffer[SIZ];
#ifdef HAVE_GETPWNAM_R
#ifdef SOLARIS_GETPWUID
tempPwdPtr = getpwnam_r(username, &pd, pwdbuffer, sizeof(pwdbuffer));
#else // SOLARIS_GETPWUID
getpwnam_r(username, &pd, pwdbuffer, sizeof pwdbuffer, &tempPwdPtr);
#endif // SOLARIS_GETPWUID
#else // HAVE_GETPWNAM_R
tempPwdPtr = NULL;
#endif // HAVE_GETPWNAM_R
if (tempPwdPtr != NULL) {
extract_token(username, pd.pw_gecos, 0, ',', sizeof username);
uid = pd.pw_uid;
if (IsEmptyStr (username))
{
safestrncpy(username, pd.pw_name, sizeof username);
len = cutuserkey(username);
}
}
else {
return (ERROR + NO_SUCH_USER);
}
}
#ifdef HAVE_LDAP
if ((config.c_auth_mode == AUTHMODE_LDAP) || (config.c_auth_mode == AUTHMODE_LDAP_AD)) {
if (CtdlTryUserLDAP(username, NULL, 0, username, sizeof username, &uid) != 0) {
return(ERROR + NO_SUCH_USER);
}
}
#endif /* HAVE_LDAP */
if ((retval = internal_create_user(username, len, &usbuf, uid)) != 0)
return retval;
/*
* Give the user a private mailbox and a configuration room.
* Make the latter an invisible system room.
*/
CtdlMailboxName(mailboxname, sizeof mailboxname, &usbuf, MAILROOM);
CtdlCreateRoom(mailboxname, 5, "", 0, 1, 1, VIEW_MAILBOX);
CtdlMailboxName(mailboxname, sizeof mailboxname, &usbuf, USERCONFIGROOM);
CtdlCreateRoom(mailboxname, 5, "", 0, 1, 1, VIEW_BBS);
if (CtdlGetRoomLock(&qrbuf, mailboxname) == 0) {
qrbuf.QRflags2 |= QR2_SYSTEM;
CtdlPutRoomLock(&qrbuf);
}
/* Perform any create functions registered by server extensions */
PerformUserHooks(&usbuf, EVT_NEWUSER);
/* Everything below this line can be bypassed if administratively
* creating a user, instead of doing self-service account creation
*/
if (become_user) {
/* Now become the user we just created */
memcpy(&CC->user, &usbuf, sizeof(struct ctdluser));
safestrncpy(CC->curr_user, username, sizeof CC->curr_user);
do_login();
/* Check to make sure we're still who we think we are */
if (CtdlGetUser(&CC->user, CC->curr_user)) {
return (ERROR + INTERNAL_ERROR);
}
}
snprintf(buf, SIZ,
"New user account <%s> has been created, from host %s [%s].\n",
username,
CC->cs_host,
CC->cs_addr
);
CtdlAideMessage(buf, "User Creation Notice");
CON_syslog(LOG_NOTICE, "New user <%s> created\n", username);
return (0);
}
/*
* cmd_newu() - create a new user account and log in as that user
*/
void cmd_newu(char *cmdbuf)
{
int a;
long len;
char username[SIZ];
if (config.c_auth_mode != AUTHMODE_NATIVE) {
cprintf("%d This system does not use native mode authentication.\n",
ERROR + NOT_HERE);
return;
}
if (config.c_disable_newu) {
cprintf("%d Self-service user account creation "
"is disabled on this system.\n", ERROR + NOT_HERE);
return;
}
if (CC->logged_in) {
cprintf("%d Already logged in.\n", ERROR + ALREADY_LOGGED_IN);
return;
}
if (CC->nologin) {
cprintf("%d %s: Too many users are already online (maximum is %d)\n",
ERROR + MAX_SESSIONS_EXCEEDED,
config.c_nodename, config.c_maxsessions);
}
extract_token(username, cmdbuf, 0, '|', sizeof username);
strproc(username);
len = cutuserkey(username);
if (IsEmptyStr(username)) {
cprintf("%d You must supply a user name.\n", ERROR + USERNAME_REQUIRED);
return;
}
if ((!strcasecmp(username, "bbs")) ||
(!strcasecmp(username, "new")) ||
(!strcasecmp(username, "."))) {
cprintf("%d '%s' is an invalid login name.\n", ERROR + ILLEGAL_VALUE, username);
return;
}
a = create_user(username, len, 1);
if (a == 0) {
logged_in_response();
} else if (a == ERROR + ALREADY_EXISTS) {
cprintf("%d '%s' already exists.\n",
ERROR + ALREADY_EXISTS, username);
return;
} else if (a == ERROR + INTERNAL_ERROR) {
cprintf("%d Internal error - user record disappeared?\n",
ERROR + INTERNAL_ERROR);
return;
} else {
cprintf("%d unknown error\n", ERROR + INTERNAL_ERROR);
}
}
/*
* set password - back end api code
*/
void CtdlSetPassword(char *new_pw)
{
CtdlGetUserLock(&CC->user, CC->curr_user);
safestrncpy(CC->user.password, new_pw, sizeof(CC->user.password));
CtdlPutUserLock(&CC->user);
CON_syslog(LOG_INFO, "Password changed for user <%s>\n", CC->curr_user);
PerformSessionHooks(EVT_SETPASS);
}
/*
* set password - citadel protocol implementation
*/
void cmd_setp(char *new_pw)
{
if (CtdlAccessCheck(ac_logged_in)) {
return;
}
if ( (CC->user.uid != CTDLUID) && (CC->user.uid != (-1)) ) {
cprintf("%d Not allowed. Use the 'passwd' command.\n", ERROR + NOT_HERE);
return;
}
if (CC->is_master) {
cprintf("%d The master prefix password cannot be changed with this command.\n",
ERROR + NOT_HERE);
return;
}
if (!strcasecmp(new_pw, "GENERATE_RANDOM_PASSWORD")) {
char random_password[17];
snprintf(random_password, sizeof random_password, "%08lx%08lx", random(), random());
CtdlSetPassword(random_password);
cprintf("%d %s\n", CIT_OK, random_password);
}
else {
strproc(new_pw);
if (IsEmptyStr(new_pw)) {
cprintf("%d Password unchanged.\n", CIT_OK);
return;
}
CtdlSetPassword(new_pw);
cprintf("%d Password changed.\n", CIT_OK);
}
}
/*
* cmd_creu() - administratively create a new user account (do not log in to it)
*/
void cmd_creu(char *cmdbuf)
{
int a;
long len;
char username[SIZ];
char password[SIZ];
struct ctdluser tmp;
if (CtdlAccessCheck(ac_aide)) {
return;
}
extract_token(username, cmdbuf, 0, '|', sizeof username);
strproc(username);
strproc(password);
if (IsEmptyStr(username)) {
cprintf("%d You must supply a user name.\n", ERROR + USERNAME_REQUIRED);
return;
}
len = cutuserkey(username);
extract_token(password, cmdbuf, 1, '|', sizeof password);
a = create_user(username, len, 0);
if (a == 0) {
if (!IsEmptyStr(password)) {
CtdlGetUserLock(&tmp, username);
safestrncpy(tmp.password, password, sizeof(tmp.password));
CtdlPutUserLock(&tmp);
}
cprintf("%d User '%s' created %s.\n", CIT_OK, username,
(!IsEmptyStr(password)) ? "and password set" :
"with no password");
return;
} else if (a == ERROR + ALREADY_EXISTS) {
cprintf("%d '%s' already exists.\n", ERROR + ALREADY_EXISTS, username);
return;
} else if ( (config.c_auth_mode != AUTHMODE_NATIVE) && (a == ERROR + NO_SUCH_USER) ) {
cprintf("%d User accounts are not created within Citadel in host authentication mode.\n",
ERROR + NO_SUCH_USER);
return;
} else {
cprintf("%d An error occurred creating the user account.\n", ERROR + INTERNAL_ERROR);
}
}
/*
* get user parameters
*/
void cmd_getu(char *cmdbuf)
{
if (CtdlAccessCheck(ac_logged_in))
return;
CtdlGetUser(&CC->user, CC->curr_user);
cprintf("%d 80|24|%d|\n",
CIT_OK,
(CC->user.flags & US_USER_SET)
);
}
/*
* set user parameters
*/
void cmd_setu(char *new_parms)
{
if (CtdlAccessCheck(ac_logged_in))
return;
if (num_parms(new_parms) < 3) {
cprintf("%d Usage error.\n", ERROR + ILLEGAL_VALUE);
return;
}
CtdlGetUserLock(&CC->user, CC->curr_user);
CC->user.flags = CC->user.flags & (~US_USER_SET);
CC->user.flags = CC->user.flags | (extract_int(new_parms, 2) & US_USER_SET);
CtdlPutUserLock(&CC->user);
cprintf("%d Ok\n", CIT_OK);
}
/*
* set last read pointer
*/
void cmd_slrp(char *new_ptr)
{
long newlr;
visit vbuf;
visit original_vbuf;
if (CtdlAccessCheck(ac_logged_in)) {
return;
}
if (!strncasecmp(new_ptr, "highest", 7)) {
newlr = CC->room.QRhighest;
} else {
newlr = atol(new_ptr);
}
CtdlGetUserLock(&CC->user, CC->curr_user);
CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
memcpy(&original_vbuf, &vbuf, sizeof(visit));
vbuf.v_lastseen = newlr;
snprintf(vbuf.v_seen, sizeof vbuf.v_seen, "*:%ld", newlr);
/* Only rewrite the record if it changed */
if ( (vbuf.v_lastseen != original_vbuf.v_lastseen)
|| (strcmp(vbuf.v_seen, original_vbuf.v_seen)) ) {
CtdlSetRelationship(&vbuf, &CC->user, &CC->room);
}
CtdlPutUserLock(&CC->user);
cprintf("%d %ld\n", CIT_OK, newlr);
}
void cmd_seen(char *argbuf) {
long target_msgnum = 0L;
int target_setting = 0;
if (CtdlAccessCheck(ac_logged_in)) {
return;
}
if (num_parms(argbuf) != 2) {
cprintf("%d Invalid parameters\n", ERROR + ILLEGAL_VALUE);
return;
}
target_msgnum = extract_long(argbuf, 0);
target_setting = extract_int(argbuf, 1);
CtdlSetSeen(&target_msgnum, 1, target_setting,
ctdlsetseen_seen, NULL, NULL);
cprintf("%d OK\n", CIT_OK);
}
void cmd_gtsn(char *argbuf) {
visit vbuf;
if (CtdlAccessCheck(ac_logged_in)) {
return;
}
/* Learn about the user and room in question */
CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
cprintf("%d ", CIT_OK);
client_write(vbuf.v_seen, strlen(vbuf.v_seen));
client_write(HKEY("\n"));
}
/*
* API function for cmd_invt_kick() and anything else that needs to
* invite or kick out a user to/from a room.
*
* Set iuser to the name of the user, and op to 1=invite or 0=kick
*/
int CtdlInvtKick(char *iuser, int op) {
struct ctdluser USscratch;
visit vbuf;
char bbb[SIZ];
if (CtdlGetUser(&USscratch, iuser) != 0) {
return(1);
}
CtdlGetRelationship(&vbuf, &USscratch, &CC->room);
if (op == 1) {
vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
vbuf.v_flags = vbuf.v_flags | V_ACCESS;
}
if (op == 0) {
vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
vbuf.v_flags = vbuf.v_flags | V_FORGET | V_LOCKOUT;
}
CtdlSetRelationship(&vbuf, &USscratch, &CC->room);
/* post a message in Aide> saying what we just did */
snprintf(bbb, sizeof bbb, "%s has been %s \"%s\" by %s.\n",
iuser,
((op == 1) ? "invited to" : "kicked out of"),
CC->room.QRname,
(CC->logged_in ? CC->user.fullname : "an administrator")
);
CtdlAideMessage(bbb,"User Admin Message");
return(0);
}
/*
* INVT and KICK commands
*/
void cmd_invt_kick(char *iuser, int op) {
/*
* These commands are only allowed by aides, room aides,
* and room namespace owners
*/
if (is_room_aide()) {
/* access granted */
} else if ( ((atol(CC->room.QRname) == CC->user.usernum) ) && (CC->user.usernum != 0) ) {
/* access granted */
} else {
/* access denied */
cprintf("%d Higher access or room ownership required.\n",
ERROR + HIGHER_ACCESS_REQUIRED);
return;
}
if (!strncasecmp(CC->room.QRname, config.c_baseroom,
ROOMNAMELEN)) {
cprintf("%d Can't add/remove users from this room.\n",
ERROR + NOT_HERE);
return;
}
if (CtdlInvtKick(iuser, op) != 0) {
cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
return;
}
cprintf("%d %s %s %s.\n",
CIT_OK, iuser,
((op == 1) ? "invited to" : "kicked out of"),
CC->room.QRname);
return;
}
void cmd_invt(char *iuser) {cmd_invt_kick(iuser, 1);}
void cmd_kick(char *iuser) {cmd_invt_kick(iuser, 0);}
/*
* Forget (Zap) the current room (API call)
* Returns 0 on success
*/
int CtdlForgetThisRoom(void) {
visit vbuf;
/* On some systems, Aides are not allowed to forget rooms */
if (is_aide() && (config.c_aide_zap == 0)
&& ((CC->room.QRflags & QR_MAILBOX) == 0) ) {
return(1);
}
CtdlGetUserLock(&CC->user, CC->curr_user);
CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
vbuf.v_flags = vbuf.v_flags | V_FORGET;
vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
CtdlSetRelationship(&vbuf, &CC->user, &CC->room);
CtdlPutUserLock(&CC->user);
/* Return to the Lobby, so we don't end up in an undefined room */
CtdlUserGoto(config.c_baseroom, 0, 0, NULL, NULL);
return(0);
}
/*
* forget (Zap) the current room
*/
void cmd_forg(char *argbuf)
{
if (CtdlAccessCheck(ac_logged_in)) {
return;
}
if (CtdlForgetThisRoom() == 0) {
cprintf("%d Ok\n", CIT_OK);
}
else {
cprintf("%d You may not forget this room.\n", ERROR + NOT_HERE);
}
}
/*
* Get Next Unregistered User
*/
void cmd_gnur(char *argbuf)
{
struct cdbdata *cdbus;
struct ctdluser usbuf;
if (CtdlAccessCheck(ac_aide)) {
return;
}
if ((CitControl.MMflags & MM_VALID) == 0) {
cprintf("%d There are no unvalidated users.\n", CIT_OK);
return;
}
/* There are unvalidated users. Traverse the user database,
* and return the first user we find that needs validation.
*/
cdb_rewind(CDB_USERS);
while (cdbus = cdb_next_item(CDB_USERS), cdbus != NULL) {
memset(&usbuf, 0, sizeof(struct ctdluser));
memcpy(&usbuf, cdbus->ptr,
((cdbus->len > sizeof(struct ctdluser)) ?
sizeof(struct ctdluser) : cdbus->len));
cdb_free(cdbus);
if ((usbuf.flags & US_NEEDVALID)
&& (usbuf.axlevel > AxDeleted)) {
cprintf("%d %s\n", MORE_DATA, usbuf.fullname);
cdb_close_cursor(CDB_USERS);
return;
}
}
/* If we get to this point, there are no more unvalidated users.
* Therefore we clear the "users need validation" flag.
*/
begin_critical_section(S_CONTROL);
get_control();
CitControl.MMflags = CitControl.MMflags & (~MM_VALID);
put_control();
end_critical_section(S_CONTROL);
cprintf("%d *** End of registration.\n", CIT_OK);
}
/*
* validate a user
*/
void cmd_vali(char *v_args)
{
char user[128];
int newax;
struct ctdluser userbuf;
extract_token(user, v_args, 0, '|', sizeof user);
newax = extract_int(v_args, 1);
if (CtdlAccessCheck(ac_aide) ||
(newax > AxAideU) ||
(newax < AxDeleted)) {
return;
}
if (CtdlGetUserLock(&userbuf, user) != 0) {
cprintf("%d '%s' not found.\n", ERROR + NO_SUCH_USER, user);
return;
}
userbuf.axlevel = newax;
userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
CtdlPutUserLock(&userbuf);
/* If the access level was set to zero, delete the user */
if (newax == 0) {
if (purge_user(user) == 0) {
cprintf("%d %s Deleted.\n", CIT_OK, userbuf.fullname);
return;
}
}
cprintf("%d User '%s' validated.\n", CIT_OK, userbuf.fullname);
}
/*
* Traverse the user file...
*/
void ForEachUser(void (*CallBack) (struct ctdluser * EachUser, void *out_data),
void *in_data)
{
struct ctdluser usbuf;
struct cdbdata *cdbus;
cdb_rewind(CDB_USERS);
while (cdbus = cdb_next_item(CDB_USERS), cdbus != NULL) {
memset(&usbuf, 0, sizeof(struct ctdluser));
memcpy(&usbuf, cdbus->ptr,
((cdbus->len > sizeof(struct ctdluser)) ?
sizeof(struct ctdluser) : cdbus->len));
cdb_free(cdbus);
(*CallBack) (&usbuf, in_data);
}
}
/*
* List one user (this works with cmd_list)
*/
void ListThisUser(struct ctdluser *usbuf, void *data)
{
char *searchstring;
searchstring = (char *)data;
if (bmstrcasestr(usbuf->fullname, searchstring) == NULL) {
return;
}
if (usbuf->axlevel > AxDeleted) {
if ((CC->user.axlevel >= AxAideU)
|| ((usbuf->flags & US_UNLISTED) == 0)
|| ((CC->internal_pgm))) {
cprintf("%s|%d|%ld|%ld|%ld|%ld||\n",
usbuf->fullname,
usbuf->axlevel,
usbuf->usernum,
(long)usbuf->lastcall,
usbuf->timescalled,
usbuf->posted);
}
}
}
/*
* List users (searchstring may be empty to list all users)
*/
void cmd_list(char *cmdbuf)
{
char searchstring[256];
extract_token(searchstring, cmdbuf, 0, '|', sizeof searchstring);
striplt(searchstring);
cprintf("%d \n", LISTING_FOLLOWS);
ForEachUser(ListThisUser, (void *)searchstring );
cprintf("000\n");
}
/*
* assorted info we need to check at login
*/
void cmd_chek(char *argbuf)
{
int mail = 0;
int regis = 0;
int vali = 0;
if (CtdlAccessCheck(ac_logged_in)) {
return;
}
CtdlGetUser(&CC->user, CC->curr_user); /* no lock is needed here */
if ((REGISCALL != 0) && ((CC->user.flags & US_REGIS) == 0))
regis = 1;
if (CC->user.axlevel >= AxAideU) {
get_control();
if (CitControl.MMflags & MM_VALID)
vali = 1;
}
/* check for mail */
mail = InitialMailCheck();
cprintf("%d %d|%d|%d|%s|\n", CIT_OK, mail, regis, vali, CC->cs_inet_email);
}
/*
* check to see if a user exists
*/
void cmd_qusr(char *who)
{
struct ctdluser usbuf;
if (CtdlGetUser(&usbuf, who) == 0) {
cprintf("%d %s\n", CIT_OK, usbuf.fullname);
} else {
cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
}
}
/*
* Administrative Get User Parameters
*/
void cmd_agup(char *cmdbuf)
{
struct ctdluser usbuf;
char requested_user[128];
if (CtdlAccessCheck(ac_aide)) {
return;
}
extract_token(requested_user, cmdbuf, 0, '|', sizeof requested_user);
if (CtdlGetUser(&usbuf, requested_user) != 0) {
cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
return;
}
cprintf("%d %s|%s|%u|%ld|%ld|%d|%ld|%ld|%d\n",
CIT_OK,
usbuf.fullname,
usbuf.password,
usbuf.flags,
usbuf.timescalled,
usbuf.posted,
(int) usbuf.axlevel,
usbuf.usernum,
(long)usbuf.lastcall,
usbuf.USuserpurge);
}
/*
* Administrative Set User Parameters
*/
void cmd_asup(char *cmdbuf)
{
struct ctdluser usbuf;
char requested_user[128];
char notify[SIZ];
int np;
int newax;
int deleted = 0;
if (CtdlAccessCheck(ac_aide))
return;
extract_token(requested_user, cmdbuf, 0, '|', sizeof requested_user);
if (CtdlGetUserLock(&usbuf, requested_user) != 0) {
cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
return;
}
np = num_parms(cmdbuf);
if (np > 1)
extract_token(usbuf.password, cmdbuf, 1, '|', sizeof usbuf.password);
if (np > 2)
usbuf.flags = extract_int(cmdbuf, 2);
if (np > 3)
usbuf.timescalled = extract_int(cmdbuf, 3);
if (np > 4)
usbuf.posted = extract_int(cmdbuf, 4);
if (np > 5) {
newax = extract_int(cmdbuf, 5);
if ((newax >= AxDeleted) && (newax <= AxAideU)) {
usbuf.axlevel = newax;
}
}
if (np > 7) {
usbuf.lastcall = extract_long(cmdbuf, 7);
}
if (np > 8) {
usbuf.USuserpurge = extract_int(cmdbuf, 8);
}
CtdlPutUserLock(&usbuf);
if (usbuf.axlevel == AxDeleted) {
if (purge_user(requested_user) == 0) {
deleted = 1;
}
}
if (deleted) {
snprintf(notify, SIZ,
"User \"%s\" has been deleted by %s.\n",
usbuf.fullname,
(CC->logged_in ? CC->user.fullname : "an administrator")
);
CtdlAideMessage(notify, "User Deletion Message");
}
cprintf("%d Ok", CIT_OK);
if (deleted)
cprintf(" (%s deleted)", requested_user);
cprintf("\n");
}
/*
* Count the number of new mail messages the user has
*/
int NewMailCount()
{
int num_newmsgs = 0;
num_newmsgs = CC->newmail;
CC->newmail = 0;
return (num_newmsgs);
}
/*
* Count the number of new mail messages the user has
*/
int InitialMailCheck()
{
int num_newmsgs = 0;
int a;
char mailboxname[ROOMNAMELEN];
struct ctdlroom mailbox;
visit vbuf;
struct cdbdata *cdbfr;
long *msglist = NULL;
int num_msgs = 0;
CtdlMailboxName(mailboxname, sizeof mailboxname, &CC->user, MAILROOM);
if (CtdlGetRoom(&mailbox, mailboxname) != 0)
return (0);
CtdlGetRelationship(&vbuf, &CC->user, &mailbox);
cdbfr = cdb_fetch(CDB_MSGLISTS, &mailbox.QRnumber, sizeof(long));
if (cdbfr != NULL) {
msglist = malloc(cdbfr->len);
memcpy(msglist, cdbfr->ptr, cdbfr->len);
num_msgs = cdbfr->len / sizeof(long);
cdb_free(cdbfr);
}
if (num_msgs > 0)
for (a = 0; a < num_msgs; ++a) {
if (msglist[a] > 0L) {
if (msglist[a] > vbuf.v_lastseen) {
++num_newmsgs;
}
}
}
if (msglist != NULL)
free(msglist);
return (num_newmsgs);
}
/*
* Set the preferred view for the current user/room combination
*/
void cmd_view(char *cmdbuf) {
int requested_view;
visit vbuf;
if (CtdlAccessCheck(ac_logged_in)) {
return;
}
requested_view = extract_int(cmdbuf, 0);
CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
vbuf.v_view = requested_view;
CtdlSetRelationship(&vbuf, &CC->user, &CC->room);
cprintf("%d ok\n", CIT_OK);
}
/*
* Rename a user
*/
void cmd_renu(char *cmdbuf)
{
int retcode;
char oldname[USERNAME_SIZE];
char newname[USERNAME_SIZE];
if (CtdlAccessCheck(ac_aide)) {
return;
}
extract_token(oldname, cmdbuf, 0, '|', sizeof oldname);
extract_token(newname, cmdbuf, 1, '|', sizeof newname);
retcode = rename_user(oldname, newname);
switch(retcode) {
case RENAMEUSER_OK:
cprintf("%d '%s' has been renamed to '%s'.\n", CIT_OK, oldname, newname);
return;
case RENAMEUSER_LOGGED_IN:
cprintf("%d '%s' is currently logged in and cannot be renamed.\n",
ERROR + ALREADY_LOGGED_IN , oldname);
return;
case RENAMEUSER_NOT_FOUND:
cprintf("%d '%s' does not exist.\n", ERROR + NO_SUCH_USER, oldname);
return;
case RENAMEUSER_ALREADY_EXISTS:
cprintf("%d A user named '%s' already exists.\n", ERROR + ALREADY_EXISTS, newname);
return;
}
cprintf("%d An unknown error occurred.\n", ERROR);
}
/*****************************************************************************/
/* MODULE INITIALIZATION STUFF */
/*****************************************************************************/
CTDL_MODULE_INIT(user_ops)
{
if (!threading) {
CtdlRegisterProtoHook(cmd_user, "USER", "Submit username for login");
CtdlRegisterProtoHook(cmd_pass, "PASS", "Complete login by submitting a password");
CtdlRegisterProtoHook(cmd_creu, "CREU", "Create User");
CtdlRegisterProtoHook(cmd_setp, "SETP", "Set the password for an account");
CtdlRegisterProtoHook(cmd_getu, "GETU", "Get User parameters");
CtdlRegisterProtoHook(cmd_setu, "SETU", "Set User parameters");
CtdlRegisterProtoHook(cmd_slrp, "SLRP", "Set Last Read Pointer");
CtdlRegisterProtoHook(cmd_invt, "INVT", "Invite a user to a room");
CtdlRegisterProtoHook(cmd_kick, "KICK", "Kick a user out of a room");
CtdlRegisterProtoHook(cmd_forg, "FORG", "Forget a room");
CtdlRegisterProtoHook(cmd_gnur, "GNUR", "Get Next Unregistered User");
CtdlRegisterProtoHook(cmd_vali, "VALI", "Validate new users");
CtdlRegisterProtoHook(cmd_list, "LIST", "List users");
CtdlRegisterProtoHook(cmd_chek, "CHEK", "assorted info we need to check at login");
CtdlRegisterProtoHook(cmd_qusr, "QUSR", "check to see if a user exists");
CtdlRegisterProtoHook(cmd_agup, "AGUP", "Administratively Get User Parameters");
CtdlRegisterProtoHook(cmd_asup, "ASUP", "Administratively Set User Parameters");
CtdlRegisterProtoHook(cmd_seen, "SEEN", "Manipulate seen/unread message flags");
CtdlRegisterProtoHook(cmd_gtsn, "GTSN", "Fetch seen/unread message flags");
CtdlRegisterProtoHook(cmd_view, "VIEW", "Set preferred view for user/room combination");
CtdlRegisterProtoHook(cmd_renu, "RENU", "Rename a user");
CtdlRegisterProtoHook(cmd_newu, "NEWU", "Log in as a new user");
}
/* return our Subversion id for the Log */
return "user_ops";
}