156 lines
4.1 KiB
C
156 lines
4.1 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
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/*
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* Authors: Michael Zucchi <notzed@ximian.com>
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*
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* Copyright 2001 Ximian, Inc. (www.ximian.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <string.h>
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#include <time.h>
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#include "camel-sasl-popb4smtp.h"
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#include "camel-service.h"
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#include "camel-session.h"
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CamelServiceAuthType camel_sasl_popb4smtp_authtype = {
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N_("POP before SMTP"),
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N_("This option will authorise a POP connection before attempting SMTP"),
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"POPB4SMTP",
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FALSE,
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};
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/* last time the pop was accessed (through the auth method anyway), *time_t */
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static GHashTable *poplast;
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/* use 1 hour as our pop timeout */
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#define POPB4SMTP_TIMEOUT (60*60)
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#ifdef ENABLE_THREADS
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#include <pthread.h>
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static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
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#define POPB4SMTP_LOCK(l) pthread_mutex_lock(&l)
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#define POPB4SMTP_UNLOCK(l) pthread_mutex_unlock(&l)
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#else
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#define POPB4SMTP_LOCK(l)
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#define POPB4SMTP_UNLOCK(l)
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#endif
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static CamelSaslClass *parent_class = NULL;
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/* Returns the class for a CamelSaslPOPB4SMTP */
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#define CSP_CLASS(so) CAMEL_SASL_POPB4SMTP_CLASS (CAMEL_OBJECT_GET_CLASS (so))
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static GByteArray *popb4smtp_challenge (CamelSasl *sasl, GByteArray *token, CamelException *ex);
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static void
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camel_sasl_popb4smtp_class_init (CamelSaslPOPB4SMTPClass *camel_sasl_popb4smtp_class)
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{
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CamelSaslClass *camel_sasl_class = CAMEL_SASL_CLASS (camel_sasl_popb4smtp_class);
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parent_class = CAMEL_SASL_CLASS (camel_type_get_global_classfuncs (camel_sasl_get_type ()));
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/* virtual method overload */
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camel_sasl_class->challenge = popb4smtp_challenge;
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poplast = g_hash_table_new(g_str_hash, g_str_equal);
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}
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CamelType
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camel_sasl_popb4smtp_get_type (void)
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{
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static CamelType type = CAMEL_INVALID_TYPE;
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if (type == CAMEL_INVALID_TYPE) {
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type = camel_type_register (camel_sasl_get_type (),
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"CamelSaslPOPB4SMTP",
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sizeof (CamelSaslPOPB4SMTP),
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sizeof (CamelSaslPOPB4SMTPClass),
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(CamelObjectClassInitFunc) camel_sasl_popb4smtp_class_init,
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NULL,
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NULL,
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NULL);
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}
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return type;
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}
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static GByteArray *
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popb4smtp_challenge (CamelSasl *sasl, GByteArray *token, CamelException *ex)
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{
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char *popuri;
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CamelSession *session = sasl->service->session;
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CamelStore *store;
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time_t now, *timep;
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sasl->authenticated = FALSE;
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popuri = camel_session_get_password(session, _("POP Source URI"), FALSE,
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sasl->service, "popb4smtp_uri", ex);
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if (popuri == NULL) {
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camel_exception_setv(ex, 1, _("POP Before SMTP auth using an unknown transport"));
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return NULL;
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}
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if (strncasecmp(popuri, "pop:", 4) != 0) {
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camel_exception_setv(ex, 1, _("POP Before SMTP auth using a non-pop source"));
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return NULL;
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}
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/* check if we've done it before recently in this session */
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now = time(0);
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/* need to lock around the whole thing until finished with timep */
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POPB4SMTP_LOCK(lock);
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timep = g_hash_table_lookup(poplast, popuri);
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if (timep) {
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if ((*timep + POPB4SMTP_TIMEOUT) > now) {
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sasl->authenticated = TRUE;
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POPB4SMTP_UNLOCK(lock);
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g_free(popuri);
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return NULL;
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}
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} else {
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timep = g_malloc0(sizeof(*timep));
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g_hash_table_insert(poplast, g_strdup(popuri), timep);
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}
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/* connect to pop session */
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store = camel_session_get_store(session, popuri, ex);
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if (store) {
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sasl->authenticated = TRUE;
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camel_object_unref((CamelObject *)store);
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*timep = now;
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} else {
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sasl->authenticated = FALSE;
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*timep = 0;
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}
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POPB4SMTP_UNLOCK(lock);
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g_free(popuri);
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return NULL;
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}
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