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/*
** Copyright 1998 - 2001 Double Precision, Inc. See COPYING for
** distribution information.
*/
#if HAVE_CONFIG_H
#include "courier_auth_config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <pwd.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "auth.h"
#include "courierauthdebug.h"
#include <vpopmail.h>
#include <vauth.h>
#include "vpopmail_config.h"
/* make use of pw_flags only if available */
#ifndef VQPASSWD_HAS_PW_FLAGS
#define pw_flags pw_gid
#endif
extern FILE *authvchkpw_file(const char *, const char *);
static const char rcsid[]="$Id: preauthvchkpw.c,v 1.25 2005/02/20 04:41:20 mrsam Exp $";
/* This function is called by the auth_vchkpw() function
*
* This function does the following :
* - extract the username and domain from the supplied userid
* - lookup the passwd entry for that user from the auth backend
* - populate *and return) a courier authinfo structure with the values
* from the vpopmail passwd entry
*
* Return -1 on perm failure
* Return 0 on success
* Return 1 on temp failure
*
*/
int auth_vchkpw_pre(
const char *userid,
const char *service,
int (*callback)(struct authinfo *, void *),
void *arg)
{
struct vqpasswd *vpw;
static uid_t uid;
gid_t gid;
struct authinfo auth;
static char User[256];
static char Domain[256];
static char options[80];
/* Make sure the auth struct is empty */
memset(&auth, 0, sizeof(auth));
/* Take the supplied userid, and split it out into the user and domain
* parts. (If a domain was not supplied, then set the domain to be
* the default domain)
*/
if ( parse_email(userid, User, Domain, 256) != 0) {
/* Failed to successfully extract user and domain.
* So now exit with a permanent failure code
*/
DPRINTF("vchkpw: unable to split into user and domain");
return(-1);
}
/* Check to see if the domain exists.
* If so, on return vget_assign will :
* Rewrite Domain to be the real domain if it was sent as an alias domain
* Retrieve the domain's uid and gid
*/
if ( vget_assign(Domain,NULL,0,&uid, &gid) == NULL ) {
/* Domain does not exist
* So now exit with a permanent failure code */
DPRINTF("vchkpw: domain does not exist");
return (-1);
}
/* Try and retrieve the user's passwd entry from the auth backend */
if ( (vpw=vauth_getpw(User, Domain)) == NULL) {
/* User does not exist
* So now exit with a permanent failure code
*/
DPRINTF("vchkpw: user does not exist");
return (-1);
}
/* Check to see if the user has been allocated a dir yet.
* Some of the vpopmail backends (eg mysql) allow users to
* be manually inserted into the auth backend but without
* allocating a dir. A dir will be created when the user
* first trys to auth (or when they 1st receive mail)
*/
if (vpw->pw_dir == NULL || strlen(vpw->pw_dir) == 0 ) {
/* user does not have a dir allocated yet */
if ( make_user_dir(User, Domain, uid, gid) == NULL) {
/* Could not allocate a user dir at this time
* so exit with a temp error code
*/
DPRINTF("vchkpw: make_user_dir failed");
return(1);
}
/* We have allocated the user a dir now.
* Go and grab the updated passwd entry
*/
if ( (vpw=vauth_getpw(User, Domain)) == NULL ) {
/* Could not get the passwd entry
* So exit with a permanent failure code
*/
DPRINTF("vchkpw: could not get the password entry");
return(-1);
}
}
snprintf(options, sizeof(options),
"disablewebmail=%d,disablepop3=%d,disableimap=%d",
vpw->pw_flags & NO_WEBMAIL ? 1 : 0,
vpw->pw_flags & NO_POP ? 1 : 0,
vpw->pw_flags & NO_IMAP ? 1 : 0);
#ifdef HAVE_VSET_LASTAUTH
/* if we are keeping track of their last auth time,
* then store this value now. Note that this isnt
* consistent with the authentication via vchkpw
* because it only stores the lastauth attempt
* after the password has been verified. Here we are
* logging it after the user has been found to exist,
* but before the password has been verified. We could
* do the logging inside authvchkpw.c, but that would
* be a lot harder because we would have to go and
* parse_email() again there before calling vset_lastauth()
*/
vset_lastauth(User, Domain, service);
#endif
/* save the user's passwd fields into the appropriate
* courier structure
*/
/*auth.sysusername = userid;*/
auth.sysuserid = &uid;
auth.sysgroupid = gid;
auth.homedir = vpw->pw_dir;
auth.address = userid;
auth.fullname = vpw->pw_gecos;
auth.passwd = vpw->pw_passwd;
auth.options = options;
courier_authdebug_authinfo("DEBUG: authvchkpw: ", &auth, 0, vpw->pw_passwd);
return ((*callback)(&auth, arg));
}
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