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DoorFunctions.ino
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DoorFunctions.ino
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// Door Specific Functions go here.
#ifdef DOOR
void handleCard(long tagId) {
authcard(tagId);
}
void authCard(long tagId) {
if (useLocal != 1) {
log("[AUTH] Server auth check begin");
String url = String(host) + "/api/" + deviceType + "/check/" + String(tagid) + "/?secret=" + String(secret);
log("[AUTH] Get:" + String(url));
std::unique_ptr<BearSSL::WiFiClientSecure>SSLclient(new BearSSL::WiFiClientSecure);
SSLclient->setInsecure();
client.begin(*SSLclient, url);
// Start http request.
int httpCode = client.GET();
// httpCode will be negative on error
if (httpCode > 0) {
log("[AUTH] Code: " + String(httpCode));
// Checkin succeeded.
if (httpCode == HTTP_CODE_OK) {
String payload = client.getString();
log("[AUTH] Server response: " + payload);
const size_t capacity = JSON_OBJECT_SIZE(4) + 90;
DynamicJsonDocument doc(capacity);
deserializeJson(doc, payload);
if ( doc["access"].as<String>() == "true" ) {
log("[AUTH] Access granted.");
pulseContact();
lastId = tagid;
} else {
log("[AUTH] Access not granted.");
delay(1000);
}
// Clear the json object now.
doc.clear();
}
} else {
log("[AUTH] Error: " + client.errorToString(httpCode));
}
client.end();
log("[AUTH] Card Auth done.");
delay(10);
} else {
if (tagsArray[0] > 0) {
log("[AUTH] Checking local cache.");
for (uint8_t i = 0; i < sizeof(tagsArray); i++) {
if (tagsArray[i] == tagid) {
log("[AUTH] Cache Access granted.");
sessionID = "Cache in use";
pulseContact();
lastId = tagid;
break;
} else {
if (tagsArray[i] < 1) {
// Check to see if this is the last tag in the cache, if so error.
log("[AUTH] Cached Access not granted.");
delay(1000);
break;
}
}
}
} else {
log("[AUTH] Cache check fail, no tags loaded");
}
}
}
void handleTag() {
char tagBytes[6];
// while (!Serial.available()) { delay(10); }
if (Serial.readBytes(tagBytes, 5) == 5)
{
uint8_t checksum = 0;
uint32_t cardId = 0;
tagBytes[6] = 0;
// log("Raw Tag:");
for (int i = 0; i < 4; i++)
{
checksum ^= tagBytes[i];
cardId = cardId << 8 | tagBytes[i];
// Serial.println(tagBytes[i], HEX);
}
if (checksum == tagBytes[4])
{
log("[AUTH] Tag Number:" + String(cardId));
flushSerial();
authCard(cardId);
lastReadSuccess = millis();
} else {
flushSerial();
log("[AUTH] incomplete or corrupted RFID read, sorry. ");
}
}
}
void pulseContact() {
switch (contact) {
case 0:
{
digitalWrite(switchPin, HIGH);
delay(5000);
digitalWrite(switchPin, LOW);
break;
}
case 1:
{
digitalWrite(switchPin, LOW);
delay(5000);
digitalWrite(switchPin, HIGH);
break;
}
}
}
void checkStateMachine() {
// Check to see if any of our state flags have tripped.
switch (triggerFlag) {
case 1: // Standard heartbeat with server.
{
delay(10);
checkIn();
delay(10);
log("[DEBUG] Free Heap Size: " + String(ESP.getFreeHeap()));
break;
}
case 2: // Session heartbeat for interlocks.
{
//Something is seriously wrong if we end up here.
break;
}
case 3: // Our cache is out of date, go get it.
{
delay(10);
getCache();
delay(10);
triggerFlag = 0;
break;
}
case 4: // If we reach this state, a heartbeat has failed. Load tags, mark as loaded and tell system to use local for next auths.
{
if (useLocal < 1) {
log("[CACHE] Loading local cache.");
loadTags();
delay(10);
tagsLoaded = 1;
useLocal = 1;
triggerFlag = 0;
break;
} else {
log("[CACHE] Heartbeat still failed. ");
triggerFlag = 0;
break;
}
}
case 5: // If we reach this state, a heartbeat has succeeded after being in local mode.
{
log("[CACHE] Unloading local cache.");
clearTags();
delay(10);
triggerFlag = 0;
break;
}
}
}
#endif