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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
* This library is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation.
*
* This library 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Michael Zucchi <notzed@ximian.com>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <time.h>
#include <glib/gi18n-lib.h>
#include "camel-sasl-popb4smtp.h"
#include "camel-service.h"
#include "camel-session.h"
#include "camel-store.h"
#define CAMEL_SASL_POPB4SMTP_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE \
((obj), CAMEL_TYPE_SASL_POPB4SMTP, CamelSaslPOPB4SMTPPrivate))
struct _CamelSaslPOPB4SMTPPrivate {
gint placeholder; /* allow for future expansion */
};
static CamelServiceAuthType sasl_popb4smtp_auth_type = {
N_("POP before SMTP"),
N_("This option will authorise a POP connection before attempting SMTP"),
"POPB4SMTP",
FALSE,
};
/* last time the pop was accessed (through the auth method anyway), *time_t */
static GHashTable *poplast;
/* use 1 hour as our pop timeout */
#define POPB4SMTP_TIMEOUT (60*60)
static GMutex lock;
#define POPB4SMTP_LOCK(l) g_mutex_lock(&l)
#define POPB4SMTP_UNLOCK(l) g_mutex_unlock(&l)
G_DEFINE_TYPE (CamelSaslPOPB4SMTP, camel_sasl_popb4smtp, CAMEL_TYPE_SASL)
static GByteArray *
sasl_popb4smtp_challenge_sync (CamelSasl *sasl,
GByteArray *token,
GCancellable *cancellable,
GError **error)
{
CamelService *service;
CamelSession *session;
time_t now, *timep;
const gchar *type_name;
gchar *pop_uid;
service = camel_sasl_get_service (sasl);
session = camel_service_ref_session (service);
camel_sasl_set_authenticated (sasl, FALSE);
pop_uid = camel_session_get_password (
session, service, _("POP Source UID"),
"popb4smtp_uid", 0, error);
if (pop_uid != NULL)
service = camel_session_ref_service (session, pop_uid);
else
service = NULL;
g_object_unref (session);
if (service == NULL) {
g_set_error (
error, CAMEL_SERVICE_ERROR,
CAMEL_SERVICE_ERROR_CANT_AUTHENTICATE,
_("POP Before SMTP authentication "
"using an unknown transport"));
g_free (pop_uid);
return NULL;
}
type_name = G_OBJECT_TYPE_NAME (service);
if (!CAMEL_IS_STORE (service)) {
g_set_error (
error, CAMEL_SERVICE_ERROR,
CAMEL_SERVICE_ERROR_CANT_AUTHENTICATE,
_("POP Before SMTP authentication attempted "
"with a %s service"), type_name);
goto exit;
}
if (strstr (type_name, "POP") == NULL) {
g_set_error (
error, CAMEL_SERVICE_ERROR,
CAMEL_SERVICE_ERROR_CANT_AUTHENTICATE,
_("POP Before SMTP authentication attempted "
"with a %s service"), type_name);
goto exit;
}
/* check if we've done it before recently in this session */
now = time (NULL);
/* need to lock around the whole thing until finished with timep */
POPB4SMTP_LOCK (lock);
timep = g_hash_table_lookup (poplast, pop_uid);
if (timep) {
if ((*timep + POPB4SMTP_TIMEOUT) > now) {
camel_sasl_set_authenticated (sasl, TRUE);
POPB4SMTP_UNLOCK (lock);
goto exit;
}
} else {
timep = g_malloc0 (sizeof (*timep));
g_hash_table_insert (poplast, g_strdup (pop_uid), timep);
}
/* connect to pop session */
if (camel_service_connect_sync (service, cancellable, error)) {
camel_sasl_set_authenticated (sasl, TRUE);
*timep = now;
} else {
camel_sasl_set_authenticated (sasl, FALSE);
*timep = 0;
}
POPB4SMTP_UNLOCK (lock);
exit:
g_object_unref (service);
g_free (pop_uid);
return NULL;
}
static void
camel_sasl_popb4smtp_class_init (CamelSaslPOPB4SMTPClass *class)
{
CamelSaslClass *sasl_class;
g_type_class_add_private (class, sizeof (CamelSaslPOPB4SMTPPrivate));
sasl_class = CAMEL_SASL_CLASS (class);
sasl_class->auth_type = &sasl_popb4smtp_auth_type;
sasl_class->challenge_sync = sasl_popb4smtp_challenge_sync;
poplast = g_hash_table_new (g_str_hash, g_str_equal);
}
static void
camel_sasl_popb4smtp_init (CamelSaslPOPB4SMTP *sasl)
{
sasl->priv = CAMEL_SASL_POPB4SMTP_GET_PRIVATE (sasl);
}
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