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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <syslog.h>
#include "sia.h"
#include "email.h"
#include "mqtt.h"
#include "util.h"
typedef struct thing_struct {
struct thing_struct *next;
char *msg;
unsigned seq;
} Thing;
static Thing *thing_list = NULL;
void dump_state (const char *file)
{
Thing *thing;
FILE *f;
char fn[1024];
strcpy (fn, file);
strcat (fn, ".next");
f = fopen (fn, "w");
if (!f) return;
for (thing = thing_list; thing; thing = thing->next) {
fprintf (f, "%d ", thing->seq);
fputs (thing->msg, f);
fputc ('\n', f);
}
fclose (f);
rename (fn, file);
}
static void maintain_state (const char *msg, const char *state_file)
{
Thing *thing;
switch (*msg) {
case '+':
case '-':
break;
default:
return;
}
for (thing = thing_list; thing; thing = thing->next) {
if (!strcmp (&msg[1], &thing->msg[1])) {
strcpy (thing->msg, msg);
dump_state (state_file);
return;
}
}
thing = malloc (sizeof (Thing));
thing->next = thing_list;
thing->msg = strdup (msg);
thing->seq = 1;
thing_list = thing;
dump_state (state_file);
}
static void send_mqtt (const char *msg, const char *host)
{
char value[1024];
char topic[1024];
char prefix[] = "stat/alarm/";
const char *rptr;
char *wptr;
int retain = 0;
if (!host) return;
switch (*msg) {
case '+':
case '-':
retain = 1;
break;
}
for (rptr = msg, wptr = value; (*rptr) && ((*rptr) != ' '); rptr++, wptr++)
*wptr = *rptr;
if (!*rptr) return;
*wptr = 0;
while (*rptr == ' ') rptr++;
strcpy (topic, prefix);
wptr = topic + (sizeof (prefix) - 1);
if (!*rptr)
strcpy (wptr, value + 1);
else {
for (; *rptr; rptr++, wptr++) {
if (local_isalnum (*rptr))
*wptr = *rptr;
else
*wptr = '_';
}
*wptr = 0;
}
mqtt (host, topic, value, retain);
#if 0
/* JMM and an ugly hack */
if (!strcmp (topic, "stat/alarm/Rain_Sensor")) {
if (value[0] == '+')
mqtt (host, "cmnd/vent/POWER1", "0", 0);
else if (value[0] == '-')
mqtt (host, "cmnd/vent/POWER1", "1", 0);
}
#endif
}
static void msg (char *account, char *event, char *ascii, int log, const char *email, const char *state_file, const char *mqtt_host)
{
char body[256];
char subject[256];
if (state_file)
maintain_state (ascii, state_file);
if (strstr (ascii, "FULL SET"))
send_mqtt ("+ARMED SYSTEM", mqtt_host);
else if (strstr (ascii, "UNSET"))
send_mqtt ("-ARMED SYSTEM", mqtt_host);
else
send_mqtt (ascii, mqtt_host);
snprintf (body, sizeof (body) - 1, "%s %64s %s", account, event, ascii);
body[sizeof (body) - 1] = 0;
if (log)
syslog (LOG_WARNING, "SIA: %s", body);
if (!email) return;
if (strstr (body, "HEARTBT")) return;
if (strstr (body, "Valid")) return;
if (strstr (body, "Rejct")) return;
if (strstr (body, "CUSTOM")) return;
if (strstr (body, "LOG")) return;
snprintf (subject, sizeof (subject) - 1, "Galaxy SIA: %s", ascii);
send_email (email, subject, body);
}
int new_block (int fd, SIA_Block *b, int log, const char *email, const char *state_file, const char *mqtt_host)
{
static int have_ascii_messages = 0; /*SIA level 3 doesn't have ascii, SIA level 4 does */
static char account[SIA_MAX_DATA_LENGTH + 1];
static char event[SIA_MAX_DATA_LENGTH + 1];
static char ascii[SIA_MAX_DATA_LENGTH + 1];
unsigned len = sia_data_length (b);
if (sia_ack_if_needed (fd, b))
return -1;
switch (b->function) {
case SIA_FN_ACCOUNT_ID:
memcpy (account, b->data, len);
account[len] = 0;
break;
case SIA_FN_NEW_EVENT:
case SIA_FN_OLD_EVENT:
memcpy (event, b->data, len);
event[len] = 0;
if (!have_ascii_messages) msg (account, event, "", log, email, state_file, mqtt_host);
break;
case SIA_FN_ASCII:
have_ascii_messages = 1;
memcpy (ascii, b->data, len);
ascii[len] = 0;
msg (account, event, ascii, log, email, state_file, mqtt_host);
break;
}
return 0;
}
void periodic_task (void)
{
}
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