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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors: Michael Zucchi <notzed@ximian.com>
*
* Copyright 2001 Ximian, Inc. (www.ximian.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* 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.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <time.h>
#include "camel-sasl-popb4smtp.h"
#include "camel-service.h"
#include "camel-session.h"
CamelServiceAuthType camel_sasl_popb4smtp_authtype = {
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)
#ifdef ENABLE_THREADS
#include <pthread.h>
static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
#define POPB4SMTP_LOCK(l) pthread_mutex_lock(&l)
#define POPB4SMTP_UNLOCK(l) pthread_mutex_unlock(&l)
#else
#define POPB4SMTP_LOCK(l)
#define POPB4SMTP_UNLOCK(l)
#endif
static CamelSaslClass *parent_class = NULL;
/* Returns the class for a CamelSaslPOPB4SMTP */
#define CSP_CLASS(so) CAMEL_SASL_POPB4SMTP_CLASS (CAMEL_OBJECT_GET_CLASS (so))
static GByteArray *popb4smtp_challenge (CamelSasl *sasl, GByteArray *token, CamelException *ex);
static void
camel_sasl_popb4smtp_class_init (CamelSaslPOPB4SMTPClass *camel_sasl_popb4smtp_class)
{
CamelSaslClass *camel_sasl_class = CAMEL_SASL_CLASS (camel_sasl_popb4smtp_class);
parent_class = CAMEL_SASL_CLASS (camel_type_get_global_classfuncs (camel_sasl_get_type ()));
/* virtual method overload */
camel_sasl_class->challenge = popb4smtp_challenge;
poplast = g_hash_table_new(g_str_hash, g_str_equal);
}
CamelType
camel_sasl_popb4smtp_get_type (void)
{
static CamelType type = CAMEL_INVALID_TYPE;
if (type == CAMEL_INVALID_TYPE) {
type = camel_type_register (camel_sasl_get_type (),
"CamelSaslPOPB4SMTP",
sizeof (CamelSaslPOPB4SMTP),
sizeof (CamelSaslPOPB4SMTPClass),
(CamelObjectClassInitFunc) camel_sasl_popb4smtp_class_init,
NULL,
NULL,
NULL);
}
return type;
}
static GByteArray *
popb4smtp_challenge (CamelSasl *sasl, GByteArray *token, CamelException *ex)
{
char *popuri;
CamelSession *session = sasl->service->session;
CamelStore *store;
time_t now, *timep;
sasl->authenticated = FALSE;
popuri = camel_session_get_password(session, _("POP Source URI"), FALSE,
sasl->service, "popb4smtp_uri", ex);
if (popuri == NULL) {
camel_exception_setv(ex, 1, _("POP Before SMTP auth using an unknown transport"));
return NULL;
}
if (strncasecmp(popuri, "pop:", 4) != 0) {
camel_exception_setv(ex, 1, _("POP Before SMTP auth using a non-pop source"));
return NULL;
}
/* check if we've done it before recently in this session */
now = time(0);
/* need to lock around the whole thing until finished with timep */
POPB4SMTP_LOCK(lock);
timep = g_hash_table_lookup(poplast, popuri);
if (timep) {
if ((*timep + POPB4SMTP_TIMEOUT) > now) {
sasl->authenticated = TRUE;
POPB4SMTP_UNLOCK(lock);
g_free(popuri);
return NULL;
}
} else {
timep = g_malloc0(sizeof(*timep));
g_hash_table_insert(poplast, g_strdup(popuri), timep);
}
/* connect to pop session */
store = camel_session_get_store(session, popuri, ex);
if (store) {
sasl->authenticated = TRUE;
camel_object_unref((CamelObject *)store);
*timep = now;
} else {
sasl->authenticated = FALSE;
*timep = 0;
}
POPB4SMTP_UNLOCK(lock);
g_free(popuri);
return NULL;
}
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