src/auth/userdb-vpopmail.c

	userdb-vpopmail.c revision 00bde9ae9eab9e720462bf6ec9a4dd85e88c3bbf
/* Copyright (C) 2002-2003 Timo Sirainen */

/* Thanks to Courier-IMAP for showing how the vpopmail API should be used */

#include "common.h"

#if defined(PASSDB_VPOPMAIL) || defined(USERDB_VPOPMAIL)
#include "userdb.h"
#include "userdb-vpopmail.h"

struct vqpasswd *vpopmail_lookup_vqp(struct auth_request *request,
                     char vpop_user[VPOPMAIL_LIMIT],
                     char vpop_domain[VPOPMAIL_LIMIT])
{
    struct vqpasswd *vpw;

    /* vpop_user must be zero-filled or parse_email() leaves an
       extra character after the user name. we'll fill vpop_domain
       as well just to be sure... */
    memset(vpop_user, '\0', VPOPMAIL_LIMIT);
    memset(vpop_domain, '\0', VPOPMAIL_LIMIT);

    if (parse_email(request->user, vpop_user, vpop_domain,
            VPOPMAIL_LIMIT-1) < 0) {
        auth_request_log_info(request, "vpopmail",
                      "parse_email() failed");
        return NULL;
    }

    auth_request_log_debug(auth_request, "vpopmail",
                   "lookup user=%s domain=%s",
                   vpop_user, vpop_domain);

    vpw = vauth_getpw(vpop_user, vpop_domain);
    if (vpw == NULL) {
        auth_request_log_info(request, "vpopmail", "unknown user");
        return NULL;
    }

    return vpw;
}

#ifdef USERDB_VPOPMAIL
static void vpopmail_lookup(struct auth_request *auth_request,
                userdb_callback_t *callback)
{
    char vpop_user[VPOPMAIL_LIMIT], vpop_domain[VPOPMAIL_LIMIT];
    struct vqpasswd *vpw;
    struct auth_stream_reply *reply;
    uid_t uid;
    gid_t gid;

    vpw = vpopmail_lookup_vqp(auth_request, vpop_user, vpop_domain);
    if (vpw == NULL) {
        callback(USERDB_RESULT_USER_UNKNOWN, NULL, auth_request);
        return;
    }

    /* we have to get uid/gid separately, because the gid field in
       struct vqpasswd isn't really gid at all but just some flags... */
    if (vget_assign(vpop_domain, NULL, 0, &uid, &gid) == NULL) {
        auth_request_log_info(auth_request, "vpopmail",
                      "vget_assign(%s) failed", vpop_domain);
        callback(USERDB_RESULT_INTERNAL_FAILURE, NULL, auth_request);
        return;
    }

    if (vpw->pw_dir == NULL || vpw->pw_dir[0] == '\0') {
        /* user's homedir doesn't exist yet, create it */
        auth_request_log_info(auth_request, "vpopmail",
                      "pw_dir isn't set, creating");

        if (make_user_dir(vpop_user, vpop_domain, uid, gid) == NULL) {
            auth_request_log_error(auth_request, "vpopmail",
                           "make_user_dir(%s, %s) failed",
                           vpop_user, vpop_domain);
            callback(USERDB_RESULT_INTERNAL_FAILURE,
                 NULL, auth_request);
            return;
        }

        /* get the user again so pw_dir is visible */
        vpw = vauth_getpw(vpop_user, vpop_domain);
        if (vpw == NULL) {
            callback(USERDB_RESULT_INTERNAL_FAILURE,
                 NULL, auth_request);
            return;
        }
    }

    reply = auth_stream_reply_init(auth_request);
    auth_stream_reply_add(reply, NULL, auth_request->user);
    auth_stream_reply_add(reply, "uid", dec2str(uid));
    auth_stream_reply_add(reply, "gid", dec2str(gid));
    auth_stream_reply_add(reply, "home", vpw->pw_dir);

    callback(USERDB_RESULT_OK, reply, auth_request);
}

static struct userdb_module *
vpopmail_preinit(struct auth_userdb *auth_userdb, const char *args)
{
    struct userdb_module *module;

    module = p_new(auth_userdb->auth->pool, struct userdb_module, 1);

    if (strncmp(args, "cache_key=", 10) == 0) {
        module->cache_key = p_strconcat(auth_userdb->auth->pool,
                        args + 10, NULL);
    }
    return module;
}

struct userdb_module_interface userdb_vpopmail = {
    "vpopmail",

    vpopmail_preinit,
    NULL,
    NULL,

    vpopmail_lookup
};

#endif
#endif