weather forecast
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parent
d24f0b9432
commit
8096c57952
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@ -6,9 +6,12 @@ object GlobalDataStore {
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@Volatile var temperature = 0.0
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@Volatile var tempUpdated = Date()
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@Volatile var isSunny = true
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@Volatile var resetTime = Date()
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@Volatile var targetTemp = 22.5
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@Volatile var pval = 0.0
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@Volatile var ival = 1.0
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@Volatile var dval = 2.0
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const val API = "https://api.open-meteo.com/v1/forecast?latitude=47.6649&longitude=14.3401&daily=sunshine_duration,daylight_duration&hourly=temperature_2m&timezone=Europe%2FBerlin&forecast_days=1&format=json&timeformat=unixtime"
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}
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@ -0,0 +1,4 @@
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package dev.asdf00.visionfive.hc.control
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class PidController {
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}
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@ -15,7 +15,11 @@ object LoginBehavior {
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private val users = loadFromFile()
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operator fun get(userName: String) = users[userName]
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operator fun set(userName: String, password: String) {
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operator fun set(userName: String, password: String?) {
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if (password == null) {
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users.remove(userName) == null
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return
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}
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val salt = getRandomBase64(16)
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users[userName] = PwdHash(hashPassword(password, salt), salt)
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Files.writeString(FILE_PATH, users.map {
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@ -36,8 +40,6 @@ object LoginBehavior {
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return mutableMapOf()
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}
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}
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fun remove(userName: String) = users.remove(userName) == null
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}
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private val loggedInUsers = mutableMapOf<String, String>()
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@ -1,19 +1,29 @@
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package dev.asdf00.visionfive.hc.server
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import com.sun.net.httpserver.HttpExchange
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import dev.asdf00.visionfive.hc.GlobalDataStore
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import java.nio.charset.StandardCharsets
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import java.util.*
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import dev.asdf00.visionfive.hc.GlobalDataStore
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import org.json.JSONArray
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import org.json.JSONException
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import org.json.JSONObject
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import java.math.BigDecimal
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import java.net.URI
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import java.net.http.HttpClient
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import java.net.http.HttpRequest
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import java.net.http.HttpResponse
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import java.nio.charset.StandardCharsets
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import java.time.Duration
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import java.util.*
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fun main() {
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// out-facing web page
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val server = buildWebServer(8030) {
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// main landing page
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endpoint("") { exchange ->
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exchange.responseHeaders.add("Cache-Control", "no-store")
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val token = getLoginToken(exchange)
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val token = getAuthToken(exchange)
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LoginBehavior.isLoggedIn(token)?.let { uname ->
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// logged in
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exchange.sendReply(
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@ -113,7 +123,6 @@ fun main() {
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}
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LoginBehavior.login(userName, pwd)?.let {
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exchange.responseHeaders.add("Set-Cookie", "auth=${it}; Path=/; HttpOnly; SameSite=Strict")
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exchange.responseHeaders.add("Set-Cookie", "test=2; Path=/; HttpOnly; SameSite=Strict")
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exchange.sendReply(
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200,
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ContentType.HTML,
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@ -129,7 +138,7 @@ fun main() {
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}
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endpoint("out") { exchange ->
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val token = getLoginToken(exchange)
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val token = getAuthToken(exchange)
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if (LoginBehavior.logout(token)) {
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exchange.responseHeaders.add("Set-Cookie", "auth=; Path=/")
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exchange.sendReply(
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@ -149,7 +158,7 @@ fun main() {
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// pid control
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endpoint("pid") handler@{ exchange ->
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if (LoginBehavior.isLoggedIn(getLoginToken(exchange)) == null) {
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if (LoginBehavior.isLoggedIn(getAuthToken(exchange)) == null) {
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// not logged in
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exchange.replyCat(401)
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return@handler
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@ -176,7 +185,11 @@ fun main() {
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}
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} else if (exchange.requestMethod == "GET") {
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// get current values
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exchange.sendReply(200, ContentType.JSON, "{\"temp\": ${GlobalDataStore.targetTemp}, \"p\": ${GlobalDataStore.pval}, \"i\": ${GlobalDataStore.ival}, \"d\": ${GlobalDataStore.dval}}".uft8())
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exchange.sendReply(
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200,
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ContentType.JSON,
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"{\"temp\": ${GlobalDataStore.targetTemp}, \"p\": ${GlobalDataStore.pval}, \"i\": ${GlobalDataStore.ival}, \"d\": ${GlobalDataStore.dval}}".uft8()
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)
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} else {
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exchange.replyCat(400)
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}
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@ -202,6 +215,71 @@ fun main() {
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}
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}
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val forecastQuery = Thread {
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while (!Thread.interrupted()) {
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var success = false
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val request = HttpRequest.newBuilder(URI.create(GlobalDataStore.API)).GET().build()
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HttpClient.newHttpClient()
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.sendAsync(request, HttpResponse.BodyHandlers.ofString())
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.thenApply { response ->
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if (response.statusCode() == 200 && response.headers().firstValue("Content-Type")
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.map { it.contains(ContentType.JSON.text) }.orElse(false)
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) {
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try {
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val data = JSONObject(response.body())
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var maxTemp = Double.NEGATIVE_INFINITY
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var maxTempTime = -1
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((data["hourly"] as? JSONObject)?.get("temperature_2m") as? JSONArray)?.forEachIndexed { h, t ->
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(t as? BigDecimal)?.let {
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val temp = it.toDouble()
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if (maxTemp < temp) {
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maxTemp = temp
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maxTempTime = h
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}
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}
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}
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if (maxTempTime > 0) {
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val daylight = ((data["daily"] as? JSONObject)?.get("daylight_duration") as? JSONArray)?.let {
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if (it.length() == 1)
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(it[0] as? BigDecimal)?.let { it.toDouble() }
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else
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null
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} ?: 0.0
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val sun = ((data["daily"] as? JSONObject)?.get("sunshine_duration") as? JSONArray)?.let {
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if (it.length() == 1)
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(it[0] as? BigDecimal)?.let { it.toDouble() }
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else
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null
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} ?: 0.0
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GlobalDataStore.resetTime = Calendar.getInstance().also {
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it.set(Calendar.HOUR_OF_DAY, maxTempTime)
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it.set(Calendar.MINUTE, 30)
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it.set(Calendar.SECOND, 0)
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}.time
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GlobalDataStore.isSunny = sun > daylight / 2
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success = true
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} else {
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println("error reading weather API response")
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}
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} catch (e: JSONException) {
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println("error parsing weather API response")
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}
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} else {
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println("error querying weather API response")
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}
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}
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.join()
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if (success) {
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Thread.sleep(Duration.ofHours(12))
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} else {
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Thread.sleep(Duration.ofMinutes(30))
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}
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}
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}
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forecastQuery.start()
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server.start()
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tempServer.start()
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println("HttpServer is running, press CTRL+C to exit")
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@ -213,13 +291,14 @@ fun main() {
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val pwd = readln()
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LoginBehavior.Users[userName] = pwd
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}
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forecastQuery.interrupt()
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}
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fun String.uft8() = toByteArray(StandardCharsets.UTF_8)
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fun ByteArray.utf8() = String(this, StandardCharsets.UTF_8)
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private fun getLoginToken(exchange: HttpExchange) =
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private fun getAuthToken(exchange: HttpExchange) =
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exchange.requestHeaders["Cookie"]
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?.let { if (it.size > 0) it[0] else null }
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?.let { it.split("; ") }
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