You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
271 lines
7.2 KiB
271 lines
7.2 KiB
/*
|
|
|
|
NTP MODULE
|
|
|
|
Copyright (C) 2016-2019 by Xose Pérez <xose dot perez at gmail dot com>
|
|
|
|
*/
|
|
|
|
#if NTP_SUPPORT
|
|
|
|
#include <TimeLib.h>
|
|
#include <WiFiClient.h>
|
|
#include <Ticker.h>
|
|
|
|
#include "libs/NtpClientWrap.h"
|
|
|
|
Ticker _ntp_defer;
|
|
|
|
bool _ntp_report = false;
|
|
bool _ntp_configure = false;
|
|
bool _ntp_want_sync = false;
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// NTP
|
|
// -----------------------------------------------------------------------------
|
|
|
|
#if WEB_SUPPORT
|
|
|
|
bool _ntpWebSocketOnReceive(const char * key, JsonVariant& value) {
|
|
return (strncmp(key, "ntp", 3) == 0);
|
|
}
|
|
|
|
void _ntpWebSocketOnSend(JsonObject& root) {
|
|
root["ntpVisible"] = 1;
|
|
root["ntpStatus"] = (timeStatus() == timeSet);
|
|
root["ntpServer"] = getSetting("ntpServer", NTP_SERVER);
|
|
root["ntpOffset"] = getSetting("ntpOffset", NTP_TIME_OFFSET).toInt();
|
|
root["ntpDST"] = getSetting("ntpDST", NTP_DAY_LIGHT).toInt() == 1;
|
|
root["ntpRegion"] = getSetting("ntpRegion", NTP_DST_REGION).toInt();
|
|
}
|
|
|
|
#endif
|
|
|
|
time_t _ntpSyncProvider() {
|
|
_ntp_want_sync = true;
|
|
return 0;
|
|
}
|
|
|
|
void _ntpWantSync() {
|
|
_ntp_want_sync = true;
|
|
}
|
|
|
|
// Randomized in time to avoid clogging the server with simultaious requests from multiple devices
|
|
// (for example, when multiple devices start up at the same time)
|
|
int inline _ntpSyncInterval() {
|
|
return secureRandom(NTP_SYNC_INTERVAL, NTP_SYNC_INTERVAL * 2);
|
|
}
|
|
|
|
int inline _ntpUpdateInterval() {
|
|
return secureRandom(NTP_UPDATE_INTERVAL, NTP_UPDATE_INTERVAL * 2);
|
|
}
|
|
|
|
void _ntpStart() {
|
|
|
|
_ntpConfigure();
|
|
|
|
// short (initial) and long (after sync) intervals
|
|
NTPw.setInterval(_ntpSyncInterval(), _ntpUpdateInterval());
|
|
DEBUG_MSG_P(PSTR("[NTP] Update intervals: %us / %us\n"),
|
|
NTPw.getShortInterval(), NTPw.getLongInterval());
|
|
|
|
// setSyncProvider will immediatly call given function by setting next sync time to the current time.
|
|
// Avoid triggering sync immediatly by canceling sync provider flag and resetting sync interval again
|
|
setSyncProvider(_ntpSyncProvider);
|
|
_ntp_want_sync = false;
|
|
|
|
setSyncInterval(NTPw.getShortInterval());
|
|
|
|
}
|
|
|
|
void _ntpConfigure() {
|
|
|
|
_ntp_configure = false;
|
|
|
|
int offset = getSetting("ntpOffset", NTP_TIME_OFFSET).toInt();
|
|
int sign = offset > 0 ? 1 : -1;
|
|
offset = abs(offset);
|
|
int tz_hours = sign * (offset / 60);
|
|
int tz_minutes = sign * (offset % 60);
|
|
if (NTPw.getTimeZone() != tz_hours || NTPw.getTimeZoneMinutes() != tz_minutes) {
|
|
NTPw.setTimeZone(tz_hours, tz_minutes);
|
|
_ntp_report = true;
|
|
}
|
|
|
|
bool daylight = getSetting("ntpDST", NTP_DAY_LIGHT).toInt() == 1;
|
|
if (NTPw.getDayLight() != daylight) {
|
|
NTPw.setDayLight(daylight);
|
|
_ntp_report = true;
|
|
}
|
|
|
|
String server = getSetting("ntpServer", NTP_SERVER);
|
|
if (!NTPw.getNtpServerName().equals(server)) {
|
|
NTPw.setNtpServerName(server);
|
|
}
|
|
|
|
uint8_t dst_region = getSetting("ntpRegion", NTP_DST_REGION).toInt();
|
|
NTPw.setDSTZone(dst_region);
|
|
|
|
// Some remote servers can be slow to respond, increase accordingly
|
|
// TODO does this need upper constrain?
|
|
NTPw.setNTPTimeout(getSetting("ntpTimeout", NTP_TIMEOUT).toInt());
|
|
|
|
}
|
|
|
|
void _ntpReport() {
|
|
|
|
_ntp_report = false;
|
|
|
|
#if WEB_SUPPORT
|
|
wsSend(_ntpWebSocketOnSend);
|
|
#endif
|
|
|
|
if (ntpSynced()) {
|
|
time_t t = now();
|
|
DEBUG_MSG_P(PSTR("[NTP] UTC Time : %s\n"), ntpDateTime(ntpLocal2UTC(t)).c_str());
|
|
DEBUG_MSG_P(PSTR("[NTP] Local Time: %s\n"), ntpDateTime(t).c_str());
|
|
}
|
|
|
|
}
|
|
|
|
#if BROKER_SUPPORT
|
|
|
|
void inline _ntpBroker() {
|
|
static unsigned char last_minute = 60;
|
|
if (ntpSynced() && (minute() != last_minute)) {
|
|
last_minute = minute();
|
|
brokerPublish(BROKER_MSG_TYPE_DATETIME, MQTT_TOPIC_DATETIME, ntpDateTime().c_str());
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
void _ntpLoop() {
|
|
|
|
// Disable ntp sync when softAP is active. This will not crash, but instead spam debug-log with pointless sync failures.
|
|
if (!wifiConnected()) return;
|
|
|
|
if (_ntp_configure) _ntpConfigure();
|
|
|
|
// NTPClientLib will trigger callback with sync status
|
|
// see: NTPw.onNTPSyncEvent([](NTPSyncEvent_t error){ ... }) below
|
|
if (_ntp_want_sync) {
|
|
_ntp_want_sync = false;
|
|
NTPw.getTime();
|
|
}
|
|
|
|
// Print current time whenever configuration changes or after successful sync
|
|
if (_ntp_report) _ntpReport();
|
|
|
|
#if BROKER_SUPPORT
|
|
_ntpBroker();
|
|
#endif
|
|
|
|
}
|
|
|
|
// TODO: remove me!
|
|
void _ntpBackwards() {
|
|
moveSetting("ntpServer1", "ntpServer");
|
|
delSetting("ntpServer2");
|
|
delSetting("ntpServer3");
|
|
int offset = getSetting("ntpOffset", NTP_TIME_OFFSET).toInt();
|
|
if (-30 < offset && offset < 30) {
|
|
offset *= 60;
|
|
setSetting("ntpOffset", offset);
|
|
}
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
bool ntpSynced() {
|
|
#if NTP_WAIT_FOR_SYNC
|
|
// Has synced at least once
|
|
return (NTPw.getFirstSync() > 0);
|
|
#else
|
|
// TODO: runtime setting?
|
|
return true;
|
|
#endif
|
|
}
|
|
|
|
String ntpDateTime(time_t t) {
|
|
char buffer[20];
|
|
snprintf_P(buffer, sizeof(buffer),
|
|
PSTR("%04d-%02d-%02d %02d:%02d:%02d"),
|
|
year(t), month(t), day(t), hour(t), minute(t), second(t)
|
|
);
|
|
return String(buffer);
|
|
}
|
|
|
|
String ntpDateTime() {
|
|
if (ntpSynced()) return ntpDateTime(now());
|
|
return String();
|
|
}
|
|
|
|
// XXX: returns garbage during DST switch
|
|
time_t ntpLocal2UTC(time_t local) {
|
|
int offset = getSetting("ntpOffset", NTP_TIME_OFFSET).toInt();
|
|
if (NTPw.isSummerTime()) offset += 60;
|
|
return local - offset * 60;
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
void ntpSetup() {
|
|
|
|
_ntpBackwards();
|
|
|
|
#if TERMINAL_SUPPORT
|
|
terminalRegisterCommand(F("NTP"), [](Embedis* e) {
|
|
if (ntpSynced()) {
|
|
_ntpReport();
|
|
terminalOK();
|
|
} else {
|
|
DEBUG_MSG_P(PSTR("[NTP] Not synced\n"));
|
|
}
|
|
});
|
|
|
|
terminalRegisterCommand(F("NTP.SYNC"), [](Embedis* e) {
|
|
_ntpWantSync();
|
|
terminalOK();
|
|
});
|
|
#endif
|
|
|
|
NTPw.onNTPSyncEvent([](NTPSyncEvent_t error) {
|
|
if (error) {
|
|
#if WEB_SUPPORT
|
|
wsSend_P(PSTR("{\"ntpStatus\": false}"));
|
|
#endif
|
|
if (error == noResponse) {
|
|
DEBUG_MSG_P(PSTR("[NTP] Error: NTP server not reachable\n"));
|
|
} else if (error == invalidAddress) {
|
|
DEBUG_MSG_P(PSTR("[NTP] Error: Invalid NTP server address\n"));
|
|
}
|
|
} else {
|
|
_ntp_report = true;
|
|
setTime(NTPw.getLastNTPSync());
|
|
}
|
|
});
|
|
|
|
wifiRegister([](justwifi_messages_t code, char * parameter) {
|
|
if (code == MESSAGE_CONNECTED) {
|
|
if (!ntpSynced()) {
|
|
_ntp_defer.once_ms(secureRandom(NTP_START_DELAY, NTP_START_DELAY * 15), _ntpWantSync);
|
|
}
|
|
}
|
|
});
|
|
|
|
#if WEB_SUPPORT
|
|
wsOnSendRegister(_ntpWebSocketOnSend);
|
|
wsOnReceiveRegister(_ntpWebSocketOnReceive);
|
|
#endif
|
|
|
|
// Main callbacks
|
|
espurnaRegisterLoop(_ntpLoop);
|
|
espurnaRegisterReload([]() { _ntp_configure = true; });
|
|
|
|
// Sets up NTP instance, installs ours sync provider
|
|
_ntpStart();
|
|
|
|
}
|
|
|
|
#endif // NTP_SUPPORT
|