int flush_add(const char *site, const char *queue_id)
{
const char *myname = "flush_add";
int status;
if (msg_verbose)
msg_info("%s: site %s id %s", myname, site, queue_id);
/*
* Don't bother the server if the service is turned off, or if the site
* is not eligible.
*/
if (flush_domains == 0)
msg_panic("missing flush client initialization");
if (domain_list_match(flush_domains, site) != 0)
status = mail_command_client(MAIL_CLASS_PUBLIC, var_flush_service,
ATTR_TYPE_STR, MAIL_ATTR_REQ, FLUSH_REQ_ADD,
ATTR_TYPE_STR, MAIL_ATTR_SITE, site,
ATTR_TYPE_STR, MAIL_ATTR_QUEUEID, queue_id,
ATTR_TYPE_END);
else if (flush_domains->error == 0)
status = FLUSH_STAT_DENY;
else
status = FLUSH_STAT_FAIL;
if (msg_verbose)
msg_info("%s: site %s id %s status %d", myname, site, queue_id,
status);
return (status);
}
int bounce_flush_verp(int flags, const char *queue, const char *id,
const char *encoding, const char *sender,
const char *dsn_envid, int dsn_ret,
const char *verp_delims)
{
/*
* When we're pretending that we can't bounce, don't send a bounce
* message.
*/
if (var_soft_bounce)
return (-1);
if (mail_command_client(MAIL_CLASS_PRIVATE, var_bounce_service,
ATTR_TYPE_INT, MAIL_ATTR_NREQ, BOUNCE_CMD_VERP,
ATTR_TYPE_INT, MAIL_ATTR_FLAGS, flags,
ATTR_TYPE_STR, MAIL_ATTR_QUEUE, queue,
ATTR_TYPE_STR, MAIL_ATTR_QUEUEID, id,
ATTR_TYPE_STR, MAIL_ATTR_ENCODING, encoding,
ATTR_TYPE_STR, MAIL_ATTR_SENDER, sender,
ATTR_TYPE_STR, MAIL_ATTR_DSN_ENVID, dsn_envid,
ATTR_TYPE_INT, MAIL_ATTR_DSN_RET, dsn_ret,
ATTR_TYPE_STR, MAIL_ATTR_VERPDL, verp_delims,
ATTR_TYPE_END) == 0) {
return (0);
} else if ((flags & BOUNCE_FLAG_CLEAN) == 0) {
msg_info("%s: status=deferred (bounce failed)", id);
return (-1);
} else {
return (-1);
}
}
int trace_append(int flags, const char *id, MSG_STATS *stats,
RECIPIENT *rcpt, const char *relay,
DSN *dsn)
{
VSTRING *why = vstring_alloc(100);
DSN my_dsn = *dsn;
int req_stat;
/*
* User-requested address verification, verbose delivery, or DSN SUCCESS
* notification.
*/
if (strcmp(relay, NO_RELAY_AGENT) != 0)
vstring_sprintf(why, "delivery via %s: ", relay);
vstring_strcat(why, my_dsn.reason);
my_dsn.reason = vstring_str(why);
if (mail_command_client(MAIL_CLASS_PRIVATE, var_trace_service,
ATTR_TYPE_INT, MAIL_ATTR_NREQ, BOUNCE_CMD_APPEND,
ATTR_TYPE_INT, MAIL_ATTR_FLAGS, flags,
ATTR_TYPE_STR, MAIL_ATTR_QUEUEID, id,
ATTR_TYPE_FUNC, rcpt_print, (void *) rcpt,
ATTR_TYPE_FUNC, dsn_print, (void *) &my_dsn,
ATTR_TYPE_END) != 0) {
msg_warn("%s: %s service failure", id, var_trace_service);
req_stat = -1;
} else {
if (flags & DEL_REQ_FLAG_USR_VRFY)
log_adhoc(id, stats, rcpt, relay, dsn, my_dsn.action);
req_stat = 0;
}
vstring_free(why);
return (req_stat);
}
int defer_warn(int flags, const char *queue, const char *id,
const char *sender, const char *envid, int dsn_ret)
{
if (mail_command_client(MAIL_CLASS_PRIVATE, var_defer_service,
ATTR_TYPE_INT, MAIL_ATTR_NREQ, BOUNCE_CMD_WARN,
ATTR_TYPE_INT, MAIL_ATTR_FLAGS, flags,
ATTR_TYPE_STR, MAIL_ATTR_QUEUE, queue,
ATTR_TYPE_STR, MAIL_ATTR_QUEUEID, id,
ATTR_TYPE_STR, MAIL_ATTR_SENDER, sender,
ATTR_TYPE_STR, MAIL_ATTR_DSN_ENVID, envid,
ATTR_TYPE_INT, MAIL_ATTR_DSN_RET, dsn_ret,
ATTR_TYPE_END) == 0) {
return (0);
} else {
return (-1);
}
}
int trace_flush(int flags, const char *queue, const char *id,
const char *encoding, const char *sender,
const char *dsn_envid, int dsn_ret)
{
if (mail_command_client(MAIL_CLASS_PRIVATE, var_trace_service,
ATTR_TYPE_INT, MAIL_ATTR_NREQ, BOUNCE_CMD_TRACE,
ATTR_TYPE_INT, MAIL_ATTR_FLAGS, flags,
ATTR_TYPE_STR, MAIL_ATTR_QUEUE, queue,
ATTR_TYPE_STR, MAIL_ATTR_QUEUEID, id,
ATTR_TYPE_STR, MAIL_ATTR_ENCODING, encoding,
ATTR_TYPE_STR, MAIL_ATTR_SENDER, sender,
ATTR_TYPE_STR, MAIL_ATTR_DSN_ENVID, dsn_envid,
ATTR_TYPE_INT, MAIL_ATTR_DSN_RET, dsn_ret,
ATTR_TYPE_END) == 0) {
return (0);
} else {
return (-1);
}
}
int flush_send_file(const char *queue_id)
{
const char *myname = "flush_send_file";
int status;
if (msg_verbose)
msg_info("%s: queue_id %s", myname, queue_id);
/*
* Require that the service is turned on.
*/
status = mail_command_client(MAIL_CLASS_PUBLIC, var_flush_service,
ATTR_TYPE_STR, MAIL_ATTR_REQ, FLUSH_REQ_SEND_FILE,
ATTR_TYPE_STR, MAIL_ATTR_QUEUEID, queue_id,
ATTR_TYPE_END);
if (msg_verbose)
msg_info("%s: queue_id %s status %d", myname, queue_id, status);
return (status);
}
int flush_refresh(void)
{
const char *myname = "flush_refresh";
int status;
if (msg_verbose)
msg_info("%s", myname);
/*
* Don't bother the server if the service is turned off.
*/
if (*var_fflush_domains == 0)
status = FLUSH_STAT_DENY;
else
status = mail_command_client(MAIL_CLASS_PUBLIC, var_flush_service,
ATTR_TYPE_STR, MAIL_ATTR_REQ, FLUSH_REQ_REFRESH,
ATTR_TYPE_END);
if (msg_verbose)
msg_info("%s: status %d", myname, status);
return (status);
}
int defer_append(int flags, const char *id, MSG_STATS *stats,
RECIPIENT *rcpt, const char *relay,
DSN *dsn)
{
const char *rcpt_domain;
DSN my_dsn = *dsn;
int status;
/*
* Sanity check.
*/
if (my_dsn.status[0] != '4' || !dsn_valid(my_dsn.status)) {
msg_warn("defer_append: ignoring dsn code \"%s\"", my_dsn.status);
my_dsn.status = "4.0.0";
}
/*
* MTA-requested address verification information is stored in the verify
* service database.
*/
if (flags & DEL_REQ_FLAG_MTA_VRFY) {
my_dsn.action = "undeliverable";
status = verify_append(id, stats, rcpt, relay, &my_dsn,
DEL_RCPT_STAT_DEFER);
return (status);
}
/*
* User-requested address verification information is logged and mailed
* to the requesting user.
*/
if (flags & DEL_REQ_FLAG_USR_VRFY) {
my_dsn.action = "undeliverable";
status = trace_append(flags, id, stats, rcpt, relay, &my_dsn);
return (status);
}
/*
* Normal mail delivery. May also send a delivery record to the user.
*
* XXX DSN We write all deferred recipients to the defer logfile regardless
* of DSN NOTIFY options, because those options don't apply to mailq(1)
* reports or to postmaster notifications.
*/
else {
/*
* Supply default action.
*/
my_dsn.action = "delayed";
if (mail_command_client(MAIL_CLASS_PRIVATE, var_defer_service,
ATTR_TYPE_INT, MAIL_ATTR_NREQ, BOUNCE_CMD_APPEND,
ATTR_TYPE_INT, MAIL_ATTR_FLAGS, flags,
ATTR_TYPE_STR, MAIL_ATTR_QUEUEID, id,
ATTR_TYPE_FUNC, rcpt_print, (void *) rcpt,
ATTR_TYPE_FUNC, dsn_print, (void *) &my_dsn,
ATTR_TYPE_END) != 0)
msg_warn("%s: %s service failure", id, var_defer_service);
log_adhoc(id, stats, rcpt, relay, &my_dsn, "deferred");
/*
* Traced delivery.
*/
if (flags & DEL_REQ_FLAG_RECORD)
if (trace_append(flags, id, stats, rcpt, relay, &my_dsn) != 0)
msg_warn("%s: %s service failure", id, var_trace_service);
/*
* Notify the fast flush service. XXX Should not this belong in the
* bounce/defer daemon? Well, doing it here is more robust.
*/
if ((rcpt_domain = strrchr(rcpt->address, '@')) != 0
&& *++rcpt_domain != 0)
switch (flush_add(rcpt_domain, id)) {
case FLUSH_STAT_OK:
case FLUSH_STAT_DENY:
break;
default:
msg_warn("%s: %s service failure", id, var_flush_service);
break;
}
return (-1);
}
}
int bounce_one_intern(int flags, const char *queue, const char *id,
const char *encoding, const char *sender,
const char *dsn_envid, int dsn_ret,
MSG_STATS *stats, RECIPIENT *rcpt,
const char *relay, DSN *dsn)
{
DSN my_dsn = *dsn;
int status;
/*
* MTA-requested address verification information is stored in the verify
* service database.
*/
if (flags & DEL_REQ_FLAG_MTA_VRFY) {
my_dsn.action = "undeliverable";
status = verify_append(id, stats, rcpt, relay, &my_dsn,
DEL_RCPT_STAT_BOUNCE);
return (status);
}
/*
* User-requested address verification information is logged and mailed
* to the requesting user.
*/
if (flags & DEL_REQ_FLAG_USR_VRFY) {
my_dsn.action = "undeliverable";
status = trace_append(flags, id, stats, rcpt, relay, &my_dsn);
return (status);
}
/*
* When we're not bouncing, then use the standard multi-recipient logfile
* based procedure.
*/
else if (var_soft_bounce) {
return (bounce_append_intern(flags, id, stats, rcpt, relay, &my_dsn));
}
/*
* Normal mail delivery. May also send a delivery record to the user.
*
* XXX DSN We send all recipients regardless of DSN NOTIFY options, because
* those options don't apply to postmaster notifications.
*/
else {
/*
* Supply default action.
*/
my_dsn.action = "failed";
if (mail_command_client(MAIL_CLASS_PRIVATE, var_bounce_service,
ATTR_TYPE_INT, MAIL_ATTR_NREQ, BOUNCE_CMD_ONE,
ATTR_TYPE_INT, MAIL_ATTR_FLAGS, flags,
ATTR_TYPE_STR, MAIL_ATTR_QUEUE, queue,
ATTR_TYPE_STR, MAIL_ATTR_QUEUEID, id,
ATTR_TYPE_STR, MAIL_ATTR_ENCODING, encoding,
ATTR_TYPE_STR, MAIL_ATTR_SENDER, sender,
ATTR_TYPE_STR, MAIL_ATTR_DSN_ENVID, dsn_envid,
ATTR_TYPE_INT, MAIL_ATTR_DSN_RET, dsn_ret,
ATTR_TYPE_FUNC, rcpt_print, (void *) rcpt,
ATTR_TYPE_FUNC, dsn_print, (void *) &my_dsn,
ATTR_TYPE_END) == 0
&& ((flags & DEL_REQ_FLAG_RECORD) == 0
|| trace_append(flags, id, stats, rcpt, relay,
&my_dsn) == 0)) {
log_adhoc(id, stats, rcpt, relay, &my_dsn, "bounced");
status = 0;
} else if ((flags & BOUNCE_FLAG_CLEAN) == 0) {
VSTRING *junk = vstring_alloc(100);
my_dsn.status = "4.3.0";
vstring_sprintf(junk, "%s or %s service failure",
var_bounce_service, var_trace_service);
my_dsn.reason = vstring_str(junk);
status = defer_append_intern(flags, id, stats, rcpt, relay, &my_dsn);
vstring_free(junk);
} else {
status = -1;
}
return (status);
}
}
int bounce_append_intern(int flags, const char *id, MSG_STATS *stats,
RECIPIENT *rcpt, const char *relay,
DSN *dsn)
{
DSN my_dsn = *dsn;
int status;
/*
* MTA-requested address verification information is stored in the verify
* service database.
*/
if (flags & DEL_REQ_FLAG_MTA_VRFY) {
my_dsn.action = "undeliverable";
status = verify_append(id, stats, rcpt, relay, &my_dsn,
DEL_RCPT_STAT_BOUNCE);
return (status);
}
/*
* User-requested address verification information is logged and mailed
* to the requesting user.
*/
if (flags & DEL_REQ_FLAG_USR_VRFY) {
my_dsn.action = "undeliverable";
status = trace_append(flags, id, stats, rcpt, relay, &my_dsn);
return (status);
}
/*
* Normal (well almost) delivery. When we're pretending that we can't
* bounce, don't create a defer log file when we wouldn't keep the bounce
* log file. That's a lot of negatives in one sentence.
*/
else if (var_soft_bounce && (flags & BOUNCE_FLAG_CLEAN)) {
return (-1);
}
/*
* Normal mail delivery. May also send a delivery record to the user.
*
* XXX DSN We write all recipients to the bounce logfile regardless of DSN
* NOTIFY options, because those options don't apply to postmaster
* notifications.
*/
else {
char *my_status = mystrdup(my_dsn.status);
const char *log_status = var_soft_bounce ? "SOFTBOUNCE" : "bounced";
/*
* Supply default action.
*/
my_dsn.status = my_status;
if (var_soft_bounce) {
my_status[0] = '4';
my_dsn.action = "delayed";
} else {
my_dsn.action = "failed";
}
if (mail_command_client(MAIL_CLASS_PRIVATE, var_soft_bounce ?
var_defer_service : var_bounce_service,
ATTR_TYPE_INT, MAIL_ATTR_NREQ, BOUNCE_CMD_APPEND,
ATTR_TYPE_INT, MAIL_ATTR_FLAGS, flags,
ATTR_TYPE_STR, MAIL_ATTR_QUEUEID, id,
ATTR_TYPE_FUNC, rcpt_print, (void *) rcpt,
ATTR_TYPE_FUNC, dsn_print, (void *) &my_dsn,
ATTR_TYPE_END) == 0
&& ((flags & DEL_REQ_FLAG_RECORD) == 0
|| trace_append(flags, id, stats, rcpt, relay,
&my_dsn) == 0)) {
log_adhoc(id, stats, rcpt, relay, &my_dsn, log_status);
status = (var_soft_bounce ? -1 : 0);
} else if ((flags & BOUNCE_FLAG_CLEAN) == 0) {
VSTRING *junk = vstring_alloc(100);
my_dsn.status = "4.3.0";
vstring_sprintf(junk, "%s or %s service failure",
var_bounce_service, var_trace_service);
my_dsn.reason = vstring_str(junk);
status = defer_append_intern(flags, id, stats, rcpt, relay, &my_dsn);
vstring_free(junk);
} else {
status = -1;
}
myfree(my_status);
return (status);
}
}