int send_alert(uint64_t user_idnr, char *subject, char *body)
{
DbmailMessage *new_message;
Field_T postmaster;
char *from;
int msgflags[IMAP_NFLAGS];
// Only send each unique alert once a day.
char *tmp = g_strconcat(subject, body, NULL);
char *userchar = g_strdup_printf("%" PRIu64 "", user_idnr);
char handle[FIELDSIZE];
memset(handle, 0, sizeof(handle));
dm_md5(tmp, handle);
if (db_replycache_validate(userchar, "send_alert", handle, 1) != DM_SUCCESS) {
TRACE(TRACE_INFO, "Already sent alert [%s] to user [%" PRIu64 "] today", subject, user_idnr);
g_free(userchar);
g_free(tmp);
return 0;
} else {
TRACE(TRACE_INFO, "Sending alert [%s] to user [%" PRIu64 "]", subject, user_idnr);
db_replycache_register(userchar, "send_alert", handle);
g_free(userchar);
g_free(tmp);
}
// From the Postmaster.
if (config_get_value("POSTMASTER", "DBMAIL", postmaster) < 0) {
TRACE(TRACE_NOTICE, "no config value for POSTMASTER");
}
if (strlen(postmaster))
from = postmaster;
else
from = DEFAULT_POSTMASTER;
// Set the \Flagged flag.
memset(msgflags, 0, sizeof(msgflags));
msgflags[IMAP_FLAG_FLAGGED] = 1;
// Get the user's login name.
char *to = auth_get_userid(user_idnr);
new_message = dbmail_message_new(NULL);
new_message = dbmail_message_construct(new_message, to, from, subject, body);
// Pre-insert the message and get a new_message->id
dbmail_message_store(new_message);
uint64_t tmpid = new_message->id;
if (sort_deliver_to_mailbox(new_message, user_idnr,
"INBOX", BOX_BRUTEFORCE, msgflags, NULL) != DSN_CLASS_OK) {
TRACE(TRACE_ERR, "Unable to deliver alert [%s] to user [%" PRIu64 "]", subject, user_idnr);
}
g_free(to);
db_delete_message(tmpid);
dbmail_message_free(new_message);
return 0;
}
/*
From http://www.ietf.org/internet-drafts/draft-ietf-sieve-vacation-06.txt
Usage: vacation [":days" number] [":subject" string]
[":from" string] [":addresses" string-list]
[":mime"] [":handle" string] <reason: string>
The parameters that an implementation needs to know about are:
days, subject, from, mime, handle, reason. Addresses is used
internally by libSieve implementation to comply with RFCs.
We need to make sure to respect the implementation requirements.
*/
int sort_vacation(sieve2_context_t *s, void *my)
{
struct sort_context *m = (struct sort_context *)my;
const char *message, *subject, *fromaddr, *handle;
const char *rc_to, *rc_from, *rc_handle;
char *md5_handle = NULL;
int days, mime;
days = sieve2_getvalue_int(s, "days");
mime = sieve2_getvalue_int(s, "mime"); // mime: 1 if message is mime coded. FIXME.
message = sieve2_getvalue_string(s, "message");
subject = sieve2_getvalue_string(s, "subject");
fromaddr = sieve2_getvalue_string(s, "fromaddr"); // From: specified by the script.
handle = sieve2_getvalue_string(s, "hash");
/* Default to a week, upper limit of a month.
* This is our only loop prevention mechanism! The value must be
* greater than 0, else the replycache code will always indicate
* that we haven't seen anything since 0 days ago... */
if (days == 0) days = 7;
if (days < 1) days = 1;
if (days > 30) days = 30;
if (handle) {
rc_handle = handle;
} else {
char *tmp;
tmp = g_strconcat(subject, message, NULL);
rc_handle = md5_handle = dm_md5((char * const) tmp);
g_free(tmp);
}
// FIXME: should be validated as a user might try
// to forge an address from their script.
rc_from = fromaddr;
if (!rc_from)
rc_from = dbmail_message_get_header(m->message, "Delivered-To");
if (!rc_from)
rc_from = m->message->envelope_recipient->str;
rc_to = dbmail_message_get_header(m->message, "Reply-To");
if (!rc_to)
rc_to = dbmail_message_get_header(m->message, "Return-Path");
if (db_replycache_validate(rc_to, rc_from, rc_handle, days) == DM_SUCCESS) {
if (send_vacation(m->message, rc_to, rc_from, subject, message, rc_handle) == 0)
db_replycache_register(rc_to, rc_from, rc_handle);
TRACE(TRACE_INFO, "Sending vacation to [%s] from [%s] handle [%s] repeat days [%d]",
rc_to, rc_from, rc_handle, days);
} else {
TRACE(TRACE_INFO, "Vacation suppressed to [%s] from [%s] handle [%s] repeat days [%d]",
rc_to, rc_from, rc_handle, days);
}
m->result->cancelkeep = 0;
return SIEVE2_OK;
}
