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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-sendmail-transport.c: Sendmail-based transport class. */
/*
*
* Authors: Dan Winship <danw@ximian.com>
*
* Copyright 2000 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 <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/wait.h>
#include <unistd.h>
#include <string.h>
#include "camel-sendmail-transport.h"
#include "camel-mime-message.h"
#include "camel-data-wrapper.h"
#include "camel-stream-fs.h"
#include "camel-exception.h"
static char *get_name (CamelService *service, gboolean brief);
static gboolean sendmail_send_to (CamelTransport *transport,
CamelMimeMessage *message,
CamelAddress *from, CamelAddress *recipients,
CamelException *ex);
static void
camel_sendmail_transport_class_init (CamelSendmailTransportClass *camel_sendmail_transport_class)
{
CamelTransportClass *camel_transport_class =
CAMEL_TRANSPORT_CLASS (camel_sendmail_transport_class);
CamelServiceClass *camel_service_class =
CAMEL_SERVICE_CLASS (camel_sendmail_transport_class);
/* virtual method overload */
camel_service_class->get_name = get_name;
camel_transport_class->send_to = sendmail_send_to;
}
CamelType
camel_sendmail_transport_get_type (void)
{
static CamelType camel_sendmail_transport_type = CAMEL_INVALID_TYPE;
if (camel_sendmail_transport_type == CAMEL_INVALID_TYPE) {
camel_sendmail_transport_type =
camel_type_register (CAMEL_TRANSPORT_TYPE, "CamelSendmailTransport",
sizeof (CamelSendmailTransport),
sizeof (CamelSendmailTransportClass),
(CamelObjectClassInitFunc) camel_sendmail_transport_class_init,
NULL,
(CamelObjectInitFunc) NULL,
NULL);
}
return camel_sendmail_transport_type;
}
static gboolean
sendmail_send_to (CamelTransport *transport, CamelMimeMessage *message,
CamelAddress *from, CamelAddress *recipients,
CamelException *ex)
{
const char *from_addr, *addr, **argv;
int i, len, fd[2], nullfd, wstat;
sigset_t mask, omask;
CamelStream *out;
pid_t pid;
if (!camel_internet_address_get (CAMEL_INTERNET_ADDRESS (from), 0, NULL, &from_addr))
return FALSE;
len = camel_address_length (recipients);
argv = g_malloc ((len + 6) * sizeof (char *));
argv[0] = "sendmail";
argv[1] = "-i";
argv[2] = "-f";
argv[3] = from_addr;
argv[4] = "--";
for (i = 0; i < len; i++) {
if (!camel_internet_address_get (CAMEL_INTERNET_ADDRESS (recipients), i, NULL, &addr)) {
camel_exception_set (ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not parse recipient list"));
g_free (argv);
return FALSE;
}
argv[i + 5] = addr;
}
argv[i + 5] = NULL;
if (pipe (fd) == -1) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not create pipe to sendmail: "
"%s: mail not sent"),
g_strerror (errno));
return FALSE;
}
/* Block SIGCHLD so the calling application doesn't notice
* sendmail exiting before we do.
*/
sigemptyset (&mask);
sigaddset (&mask, SIGCHLD);
sigprocmask (SIG_BLOCK, &mask, &omask);
pid = fork ();
switch (pid) {
case -1:
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not fork sendmail: "
"%s: mail not sent"),
g_strerror (errno));
sigprocmask (SIG_SETMASK, &omask, NULL);
g_free (argv);
return FALSE;
case 0:
/* Child process */
nullfd = open ("/dev/null", O_RDWR);
dup2 (fd[0], STDIN_FILENO);
/* dup2 (nullfd, STDOUT_FILENO);
dup2 (nullfd, STDERR_FILENO);*/
close (nullfd);
close (fd[1]);
execv (SENDMAIL_PATH, (char **)argv);
_exit (255);
}
g_free (argv);
/* Parent process. Write the message out. */
close (fd[0]);
out = camel_stream_fs_new_with_fd (fd[1]);
if (camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (message), out) == -1
|| camel_stream_close(out) == -1) {
camel_object_unref (CAMEL_OBJECT (out));
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not send message: %s"),
strerror(errno));
return FALSE;
}
camel_object_unref (CAMEL_OBJECT (out));
/* Wait for sendmail to exit. */
while (waitpid (pid, &wstat, 0) == -1 && errno == EINTR)
;
sigprocmask (SIG_SETMASK, &omask, NULL);
if (!WIFEXITED (wstat)) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("sendmail exited with signal %s: "
"mail not sent."),
g_strsignal (WTERMSIG (wstat)));
return FALSE;
} else if (WEXITSTATUS (wstat) != 0) {
if (WEXITSTATUS (wstat) == 255) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not execute %s: "
"mail not sent."),
SENDMAIL_PATH);
} else {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("sendmail exited with status "
"%d: mail not sent."),
WEXITSTATUS (wstat));
}
return FALSE;
}
return TRUE;
}
static char *
get_name (CamelService *service, gboolean brief)
{
if (brief)
return g_strdup (_("sendmail"));
else
return g_strdup (_("Mail delivery via the sendmail program"));
}
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