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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999-2002, 2004-2007, 2009-2012 Free Software
Foundation, Inc.
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; either
version 3 of the License, or (at your option) any later version.
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/>. */
#include <config.h>
#include <sys/types.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <string.h>
#include <mailutils/types.h>
#include <mailutils/message.h>
#include <mailutils/errno.h>
#include <mailutils/envelope.h>
#include <mailutils/util.h>
#include <mailutils/datetime.h>
#include <mailutils/header.h>
#include <mailutils/mu_auth.h>
#include <mailutils/address.h>
#include <mailutils/sys/message.h>
/* Message envelope */
static int
message_envelope_date (mu_envelope_t envelope, char *buf, size_t len,
size_t *pnwrite)
{
mu_message_t msg = mu_envelope_get_owner (envelope);
time_t t;
size_t n;
if (msg == NULL)
return EINVAL;
/* FIXME: extract the time from "Date:". */
if (buf == NULL || len == 0)
{
n = MU_DATETIME_FROM_LENGTH;
}
else
{
char tmpbuf[MU_DATETIME_FROM_LENGTH+1];
t = time (NULL);
n = mu_strftime (tmpbuf, sizeof tmpbuf,
MU_DATETIME_FROM, gmtime (&t));
n = mu_cpystr (buf, tmpbuf, len);
}
if (pnwrite)
*pnwrite = n;
return 0;
}
static int
message_envelope_sender (mu_envelope_t envelope, char *buf, size_t len,
size_t *pnwrite)
{
mu_message_t msg = mu_envelope_get_owner (envelope);
mu_header_t header;
int status;
const char *sender;
struct mu_auth_data *auth = NULL;
static char *hdrnames[] = {
"X-Envelope-Sender",
"X-Envelope-From",
"X-Original-Sender",
"From",
NULL
};
mu_address_t address = NULL;
if (msg == NULL)
return EINVAL;
/* First, try the header */
status = mu_message_get_header (msg, &header);
if (status)
return status;
status = mu_header_sget_firstof (header, hdrnames, &sender, NULL);
if (status)
{
auth = mu_get_auth_by_uid (getuid ());
if (!auth)
return MU_ERR_NOENT;
sender = auth->name;
}
status = mu_address_create (&address, sender);
if (status == 0)
{
status = mu_address_sget_email (address, 1, &sender);
if (status == 0)
{
size_t n = strlen (sender);
if (buf && len > 0)
{
len--; /* One for the null. */
n = (n < len) ? n : len;
memcpy (buf, sender, n);
buf[n] = '\0';
}
if (pnwrite)
*pnwrite = n;
}
mu_address_destroy (&address);
}
if (auth)
mu_auth_data_free (auth);
return status;
}
int
mu_message_get_envelope (mu_message_t msg, mu_envelope_t *penvelope)
{
if (msg == NULL)
return EINVAL;
if (penvelope == NULL)
return MU_ERR_OUT_PTR_NULL;
if (msg->envelope == NULL)
{
mu_envelope_t envelope;
int status = mu_envelope_create (&envelope, msg);
if (status != 0)
return status;
mu_envelope_set_sender (envelope, message_envelope_sender, msg);
mu_envelope_set_date (envelope, message_envelope_date, msg);
msg->envelope = envelope;
}
*penvelope = msg->envelope;
return 0;
}
int
mu_message_set_envelope (mu_message_t msg, mu_envelope_t envelope, void *owner)
{
if (msg == NULL)
return EINVAL;
if (msg->owner != owner)
return EACCES;
if (msg->envelope)
mu_envelope_destroy (&msg->envelope, msg);
msg->envelope = envelope;
msg->flags |= MESSAGE_MODIFIED;
return 0;
}
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