static int
moderator_action (mu_sieve_machine_t mach, mu_list_t args, mu_list_t tags)
{
mu_message_t msg, orig;
int rc;
size_t nparts = 0;
int discard = 0;
int ismime;
if (mu_sieve_get_debug_level (mach) & MU_SIEVE_DEBUG_TRACE)
{
mu_sieve_locus_t locus;
mu_sieve_get_locus (mach, &locus);
mu_sieve_debug (mach, "%s:%lu: moderator_test %lu\n",
locus.source_file,
(u_long) locus.source_line,
(u_long) mu_sieve_get_message_num (mach));
}
msg = mu_sieve_get_message (mach);
mu_message_is_multipart (msg, &ismime);
if (!ismime)
{
mu_sieve_error (mach, _("message is not multipart"));
mu_sieve_abort (mach);
}
mu_message_get_num_parts (msg, &nparts);
if (nparts != 3) /* Mailman moderation requests have three parts */
{
mu_sieve_error (mach, _("expected 3 parts, but found %lu"),
(unsigned long) nparts);
mu_sieve_abort (mach);
}
if ((rc = moderator_message_get_part (mach, msg, 2, &orig)))
mu_sieve_abort (mach);
rc = moderator_filter_message (mach, tags, orig, &discard);
mu_message_unref (orig);
if (rc)
mu_sieve_abort (mach);
if (discard && !mu_sieve_is_dry_run (mach))
{
mu_message_t request;
char *from = NULL;
mu_sieve_value_t *arg;
if ((rc = moderator_message_get_part (mach, msg, 3, &request)))
{
mu_sieve_error (mach, _("cannot get message part #3: %s"),
mu_strerror (rc));
mu_sieve_abort (mach);
}
if (mu_sieve_tag_lookup (tags, "address", &arg))
from = arg->v.string;
if (moderator_discard_message (mach, request, from))
discard = 0;
else
{
if (!mu_sieve_tag_lookup (tags, "keep", NULL))
{
mu_attribute_t attr = 0;
if (mu_message_get_attribute (msg, &attr) == 0)
mu_attribute_set_deleted (attr);
}
else
discard = 0;
}
mu_message_unref (request);
}
mu_sieve_log_action (mach, "MODERATOR",
discard ? _("discarding message") :
_("keeping message"));
return 0;
}
static int
moderator_filter_message (mu_sieve_machine_t mach, mu_list_t tags,
mu_message_t msg, int *pdiscard)
{
int rc;
mu_sieve_machine_t newmach;
mu_attribute_t attr;
mu_sieve_value_t *arg;
if (mu_sieve_tag_lookup (tags, "source", &arg))
{
rc = mu_sieve_machine_inherit (mach, &newmach);
if (rc)
{
mu_sieve_error (mach, _("cannot initialize sieve machine: %s"),
mu_strerror (rc));
return 1;
}
/* FIXME: This should be configurable:
moderator :inherit
moderator :debug 2
...
*/
rc = mu_sieve_compile (newmach, arg->v.string);
if (rc)
mu_sieve_error (mach, _("cannot compile source `%s'"), arg->v.string);
}
else if (mu_sieve_tag_lookup (tags, "program", &arg))
{
struct mu_locus locus;
rc = mu_sieve_machine_inherit (mach, &newmach);
if (rc)
{
mu_sieve_error (mach, _("cannot initialize sieve machine: %s"),
mu_strerror (rc));
return 1;
}
mu_sieve_get_locus (mach, &locus);
rc = mu_sieve_compile_buffer (newmach,
arg->v.string, strlen (arg->v.string),
locus.mu_file, locus.mu_line);
if (rc)
mu_sieve_error (mach, _("cannot compile subprogram"));
}
else
rc = mu_sieve_machine_dup (mach, &newmach);
if (rc)
return rc;
mu_message_get_attribute (msg, &attr);
mu_attribute_unset_deleted (attr);
rc = mu_sieve_message (newmach, msg);
if (rc)
mu_sieve_error (newmach, _("failed to run inferior sieve machine"));
else
*pdiscard = mu_attribute_is_deleted (attr);
mu_sieve_machine_destroy (&newmach);
return rc;
}
/* Handler for the timestamp test */
static int
timestamp_test (mu_sieve_machine_t mach, mu_list_t args, mu_list_t tags)
{
mu_sieve_value_t *h, *v;
mu_header_t hdr;
char *val;
time_t now = time (NULL);
time_t tlimit, tval;
int rc;
if (mu_sieve_get_debug_level (mach) & MU_SIEVE_DEBUG_TRACE)
{
mu_sieve_locus_t locus;
mu_sieve_get_locus (mach, &locus);
mu_sieve_debug (mach, "%s:%lu: TIMESTAMP\n",
locus.source_file,
(unsigned long) locus.source_line);
}
/* Retrieve required arguments: */
/* First argument: header name */
h = mu_sieve_value_get (args, 0);
if (!h)
{
mu_sieve_arg_error (mach, 1);
mu_sieve_abort (mach);
}
/* Second argument: date displacement */
v = mu_sieve_value_get (args, 1);
if (!v)
{
mu_sieve_arg_error (mach, 2);
mu_sieve_abort (mach);
}
if (mu_parse_date (v->v.string, &tlimit, &now))
{
mu_sieve_error (mach, _("cannot parse date specification (%s)"),
v->v.string);
mu_sieve_abort (mach);
}
rc = mu_message_get_header (mu_sieve_get_message (mach), &hdr);
if (rc)
{
mu_sieve_error (mach, "mu_message_get_header: %s", mu_strerror (rc));
mu_sieve_abort (mach);
}
if (mu_header_aget_value (hdr, h->v.string, &val))
return 0;
if (mu_parse_date (val, &tval, &now))
{
mu_sieve_error (mach,
"cannot parse header date specification (%s)",
val);
free (val);
mu_sieve_abort (mach);
}
free (val);
rc = tval > tlimit;
if (mu_sieve_tag_lookup (tags, "before", NULL))
rc = !rc;
return rc;
}
