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717 lines
21 KiB
717 lines
21 KiB
/*
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WEBSERVER MODULE
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Copyright (C) 2016-2017 by Xose Pérez <xose dot perez at gmail dot com>
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*/
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#include <ESPAsyncTCP.h>
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#include <ESPAsyncWebServer.h>
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#include <ESP8266mDNS.h>
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#include <FS.h>
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#include <Hash.h>
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#include <AsyncJson.h>
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#include <ArduinoJson.h>
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#include <Ticker.h>
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#include <vector>
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AsyncWebServer server(80);
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AsyncWebSocket ws("/ws");
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Ticker deferred;
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typedef struct {
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IPAddress ip;
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unsigned long timestamp = 0;
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} ws_ticket_t;
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ws_ticket_t _ticket[WS_BUFFER_SIZE];
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typedef struct {
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char * url;
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char * key;
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apiGetCallbackFunction getFn = NULL;
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apiPutCallbackFunction putFn = NULL;
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} web_api_t;
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std::vector<web_api_t> _apis;
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// -----------------------------------------------------------------------------
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// WEBSOCKETS
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// -----------------------------------------------------------------------------
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bool wsSend(const char * payload) {
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DEBUG_MSG("[WEBSOCKET] Broadcasting '%s'\n", payload);
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ws.textAll(payload);
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}
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bool wsSend(uint32_t client_id, const char * payload) {
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DEBUG_MSG("[WEBSOCKET] Sending '%s' to #%ld\n", payload, client_id);
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ws.text(client_id, payload);
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}
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void wsMQTTCallback(unsigned int type, const char * topic, const char * payload) {
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if (type == MQTT_CONNECT_EVENT) {
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wsSend("{\"mqttStatus\": true}");
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}
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if (type == MQTT_DISCONNECT_EVENT) {
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wsSend("{\"mqttStatus\": false}");
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}
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}
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void _wsParse(uint32_t client_id, uint8_t * payload, size_t length) {
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// Parse JSON input
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DynamicJsonBuffer jsonBuffer;
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JsonObject& root = jsonBuffer.parseObject((char *) payload);
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if (!root.success()) {
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DEBUG_MSG("[WEBSOCKET] Error parsing data\n");
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ws.text(client_id, "{\"message\": \"Error parsing data!\"}");
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return;
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}
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// Check actions
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if (root.containsKey("action")) {
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String action = root["action"];
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unsigned int relayID = 0;
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if (root.containsKey("relayID")) {
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String value = root["relayID"];
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relayID = value.toInt();
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}
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DEBUG_MSG("[WEBSOCKET] Requested action: %s\n", action.c_str());
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if (action.equals("reset")) ESP.reset();
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if (action.equals("reconnect")) {
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// Let the HTTP request return and disconnect after 100ms
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deferred.once_ms(100, wifiDisconnect);
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}
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if (action.equals("on")) relayStatus(relayID, true);
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if (action.equals("off")) relayStatus(relayID, false);
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};
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// Check config
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if (root.containsKey("config") && root["config"].is<JsonArray&>()) {
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JsonArray& config = root["config"];
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DEBUG_MSG("[WEBSOCKET] Parsing configuration data\n");
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bool save = false;
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bool changed = false;
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bool changedMQTT = false;
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bool apiEnabled = false;
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#if ENABLE_FAUXMO
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bool fauxmoEnabled = false;
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#endif
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unsigned int network = 0;
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unsigned int dczRelayIdx = 0;
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String adminPass;
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for (unsigned int i=0; i<config.size(); i++) {
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String key = config[i]["name"];
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String value = config[i]["value"];
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#if ENABLE_POW
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if (key == "powExpectedPower") {
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powSetExpectedActivePower(value.toInt());
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changed = true;
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}
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if (key == "powExpectedVoltage") {
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powSetExpectedVoltage(value.toInt());
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changed = true;
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}
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if (key == "powExpectedCurrent") {
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powSetExpectedCurrent(value.toInt());
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changed = true;
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}
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if (key == "powExpectedReset") {
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powReset();
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changed = true;
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}
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#endif
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if (key.startsWith("pow")) continue;
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#if ENABLE_DOMOTICZ
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if (key == "dczRelayIdx") {
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if (dczRelayIdx >= relayCount()) continue;
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key = key + String(dczRelayIdx);
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++dczRelayIdx;
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}
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#else
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if (key.startsWith("dcz")) continue;
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#endif
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// Check password
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if (key == "adminPass1") {
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adminPass = value;
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continue;
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}
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if (key == "adminPass2") {
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if (!value.equals(adminPass)) {
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ws.text(client_id, "{\"message\": \"Passwords do not match!\"}");
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return;
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}
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if (value.length() == 0) continue;
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ws.text(client_id, "{\"action\": \"reload\"}");
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key = String("adminPass");
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}
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// Checkboxes
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if (key == "apiEnabled") {
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apiEnabled = true;
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continue;
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}
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#if ENABLE_FAUXMO
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if (key == "fauxmoEnabled") {
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fauxmoEnabled = true;
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continue;
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}
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#endif
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if (key == "ssid") {
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key = key + String(network);
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}
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if (key == "pass") {
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key = key + String(network);
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}
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if (key == "ip") {
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key = key + String(network);
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}
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if (key == "gw") {
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key = key + String(network);
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}
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if (key == "mask") {
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key = key + String(network);
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}
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if (key == "dns") {
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key = key + String(network);
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++network;
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}
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if (value != getSetting(key)) {
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//DEBUG_MSG("[WEBSOCKET] Storing %s = %s\n", key.c_str(), value.c_str());
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setSetting(key, value);
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save = changed = true;
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if (key.startsWith("mqtt")) changedMQTT = true;
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}
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}
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// Checkboxes
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if (apiEnabled != (getSetting("apiEnabled").toInt() == 1)) {
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setSetting("apiEnabled", apiEnabled);
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save = changed = true;
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}
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#if ENABLE_FAUXMO
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if (fauxmoEnabled != (getSetting("fauxmoEnabled").toInt() == 1)) {
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setSetting("fauxmoEnabled", fauxmoEnabled);
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save = changed = true;
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}
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#endif
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// Clean wifi networks
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for (int i = 0; i < network; i++) {
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if (getSetting("pass" + String(i)).length() == 0) delSetting("pass" + String(i));
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if (getSetting("ip" + String(i)).length() == 0) delSetting("ip" + String(i));
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if (getSetting("gw" + String(i)).length() == 0) delSetting("gw" + String(i));
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if (getSetting("mask" + String(i)).length() == 0) delSetting("mask" + String(i));
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if (getSetting("dns" + String(i)).length() == 0) delSetting("dns" + String(i));
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}
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for (int i = network; i<WIFI_MAX_NETWORKS; i++) {
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if (getSetting("ssid" + String(i)).length() > 0) {
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save = changed = true;
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}
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delSetting("ssid" + String(i));
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delSetting("pass" + String(i));
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delSetting("ip" + String(i));
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delSetting("gw" + String(i));
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delSetting("mask" + String(i));
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delSetting("dns" + String(i));
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}
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// Save settings
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if (save) {
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saveSettings();
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wifiConfigure();
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otaConfigure();
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#if ENABLE_FAUXMO
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fauxmoConfigure();
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#endif
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buildTopics();
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#if ENABLE_RF
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rfBuildCodes();
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#endif
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#if ENABLE_EMON
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setCurrentRatio(getSetting("emonRatio").toFloat());
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#endif
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#if ITEAD_1CH_INCHING
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byte relayPulseMode = getSetting("relayPulseMode", String(RELAY_PULSE_MODE)).toInt();
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digitalWrite(LED_PULSE, relayPulseMode != RELAY_PULSE_NONE);
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#endif
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// Check if we should reconfigure MQTT connection
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if (changedMQTT) {
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mqttDisconnect();
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}
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}
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if (changed) {
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ws.text(client_id, "{\"message\": \"Changes saved\"}");
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} else {
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ws.text(client_id, "{\"message\": \"No changes detected\"}");
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}
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}
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}
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void _wsStart(uint32_t client_id) {
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char chipid[6];
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sprintf(chipid, "%06X", ESP.getChipId());
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DynamicJsonBuffer jsonBuffer;
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JsonObject& root = jsonBuffer.createObject();
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root["app"] = APP_NAME;
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root["version"] = APP_VERSION;
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root["buildDate"] = __DATE__;
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root["buildTime"] = __TIME__;
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root["manufacturer"] = String(MANUFACTURER);
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root["chipid"] = chipid;
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root["mac"] = WiFi.macAddress();
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root["device"] = String(DEVICE);
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root["hostname"] = getSetting("hostname", HOSTNAME);
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root["network"] = getNetwork();
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root["deviceip"] = getIP();
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root["mqttStatus"] = mqttConnected();
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root["mqttServer"] = getSetting("mqttServer", MQTT_SERVER);
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root["mqttPort"] = getSetting("mqttPort", MQTT_PORT);
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root["mqttUser"] = getSetting("mqttUser");
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root["mqttPassword"] = getSetting("mqttPassword");
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root["mqttTopic"] = getSetting("mqttTopic", MQTT_TOPIC);
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JsonArray& relay = root.createNestedArray("relayStatus");
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for (unsigned char relayID=0; relayID<relayCount(); relayID++) {
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relay.add(relayStatus(relayID));
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}
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root["relayMode"] = getSetting("relayMode", RELAY_MODE);
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root["relayPulseMode"] = getSetting("relayPulseMode", RELAY_PULSE_MODE);
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root["relayPulseTime"] = getSetting("relayPulseTime", RELAY_PULSE_TIME);
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if (relayCount() > 1) {
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root["multirelayVisible"] = 1;
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root["relaySync"] = getSetting("relaySync", RELAY_SYNC);
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}
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root["apiEnabled"] = getSetting("apiEnabled").toInt() == 1;
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root["apiKey"] = getSetting("apiKey");
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#if ENABLE_DOMOTICZ
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root["dczVisible"] = 1;
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root["dczTopicIn"] = getSetting("dczTopicIn", DOMOTICZ_IN_TOPIC);
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root["dczTopicOut"] = getSetting("dczTopicOut", DOMOTICZ_OUT_TOPIC);
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JsonArray& dczRelayIdx = root.createNestedArray("dczRelayIdx");
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for (byte i=0; i<relayCount(); i++) {
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dczRelayIdx.add(relayToIdx(i));
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}
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#if ENABLE_DHT
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root["dczTmpIdx"] = getSetting("dczTmpIdx").toInt();
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root["dczHumIdx"] = getSetting("dczHumIdx").toInt();
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#endif
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#if ENABLE_DS18B20
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root["dczTmpIdx"] = getSetting("dczTmpIdx").toInt();
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#endif
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#if ENABLE_EMON
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root["dczPowIdx"] = getSetting("dczPowIdx").toInt();
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root["dczEnergyIdx"] = getSetting("dczEnergyIdx").toInt();
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root["dczVoltIdx"] = getSetting("dczVoltIdx").toInt();
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root["dczCurrentIdx"] = getSetting("dczCurrentIdx").toInt();
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#endif
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#if ENABLE_POW
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root["dczPowIdx"] = getSetting("dczPowIdx").toInt();
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root["dczEnergyIdx"] = getSetting("dczEnergyIdx").toInt();
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root["dczVoltIdx"] = getSetting("dczVoltIdx").toInt();
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root["dczCurrentIdx"] = getSetting("dczCurrentIdx").toInt();
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#endif
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#endif
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#if ENABLE_FAUXMO
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root["fauxmoVisible"] = 1;
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root["fauxmoEnabled"] = getSetting("fauxmoEnabled", FAUXMO_ENABLED).toInt() == 1;
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#endif
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#if ENABLE_DS18B20
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root["dsVisible"] = 1;
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root["dsTmp"] = getDSTemperature();
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#endif
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#if ENABLE_DHT
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root["dhtVisible"] = 1;
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root["dhtTmp"] = getDHTTemperature();
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root["dhtHum"] = getDHTHumidity();
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#endif
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#if ENABLE_RF
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root["rfVisible"] = 1;
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root["rfChannel"] = getSetting("rfChannel", RF_CHANNEL);
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root["rfDevice"] = getSetting("rfDevice", RF_DEVICE);
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#endif
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#if ENABLE_EMON
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root["emonVisible"] = 1;
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root["emonPower"] = getPower();
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root["emonMains"] = getSetting("emonMains", EMON_MAINS_VOLTAGE);
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root["emonRatio"] = getSetting("emonRatio", EMON_CURRENT_RATIO);
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#endif
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#if ENABLE_POW
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root["powVisible"] = 1;
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root["powActivePower"] = getActivePower();
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root["powApparentPower"] = getApparentPower();
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root["powReactivePower"] = getReactivePower();
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root["powVoltage"] = getVoltage();
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root["powCurrent"] = getCurrent();
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root["powPowerFactor"] = getPowerFactor();
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#endif
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root["maxNetworks"] = WIFI_MAX_NETWORKS;
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JsonArray& wifi = root.createNestedArray("wifi");
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for (byte i=0; i<WIFI_MAX_NETWORKS; i++) {
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if (getSetting("ssid" + String(i)).length() == 0) break;
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JsonObject& network = wifi.createNestedObject();
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network["ssid"] = getSetting("ssid" + String(i));
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network["pass"] = getSetting("pass" + String(i));
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network["ip"] = getSetting("ip" + String(i));
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network["gw"] = getSetting("gw" + String(i));
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network["mask"] = getSetting("mask" + String(i));
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network["dns"] = getSetting("dns" + String(i));
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}
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String output;
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root.printTo(output);
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ws.text(client_id, (char *) output.c_str());
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}
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bool _wsAuth(AsyncWebSocketClient * client) {
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IPAddress ip = client->remoteIP();
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unsigned long now = millis();
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unsigned short index = 0;
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for (index = 0; index < WS_BUFFER_SIZE; index++) {
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if ((_ticket[index].ip == ip) && (now - _ticket[index].timestamp < WS_TIMEOUT)) break;
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}
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if (index == WS_BUFFER_SIZE) {
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DEBUG_MSG("[WEBSOCKET] Validation check failed\n");
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ws.text(client->id(), "{\"message\": \"Session expired, please reload page...\"}");
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return false;
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}
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return true;
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}
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void _wsEvent(AsyncWebSocket * server, AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len){
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static uint8_t * message;
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// Authorize
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#ifndef NOWSAUTH
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if (!_wsAuth(client)) return;
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#endif
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if (type == WS_EVT_CONNECT) {
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IPAddress ip = client->remoteIP();
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DEBUG_MSG("[WEBSOCKET] #%u connected, ip: %d.%d.%d.%d, url: %s\n", client->id(), ip[0], ip[1], ip[2], ip[3], server->url());
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_wsStart(client->id());
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} else if(type == WS_EVT_DISCONNECT) {
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DEBUG_MSG("[WEBSOCKET] #%u disconnected\n", client->id());
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} else if(type == WS_EVT_ERROR) {
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DEBUG_MSG("[WEBSOCKET] #%u error(%u): %s\n", client->id(), *((uint16_t*)arg), (char*)data);
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} else if(type == WS_EVT_PONG) {
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DEBUG_MSG("[WEBSOCKET] #%u pong(%u): %s\n", client->id(), len, len ? (char*) data : "");
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} else if(type == WS_EVT_DATA) {
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AwsFrameInfo * info = (AwsFrameInfo*)arg;
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// First packet
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if (info->index == 0) {
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//Serial.printf("Before malloc: %d\n", ESP.getFreeHeap());
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message = (uint8_t*) malloc(info->len);
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//Serial.printf("After malloc: %d\n", ESP.getFreeHeap());
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}
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// Store data
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memcpy(message + info->index, data, len);
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// Last packet
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if (info->index + len == info->len) {
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_wsParse(client->id(), message, info->len);
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//Serial.printf("Before free: %d\n", ESP.getFreeHeap());
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free(message);
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//Serial.printf("After free: %d\n", ESP.getFreeHeap());
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}
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}
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}
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// -----------------------------------------------------------------------------
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// WEBSERVER
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// -----------------------------------------------------------------------------
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void webLogRequest(AsyncWebServerRequest *request) {
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DEBUG_MSG("[WEBSERVER] Request: %s %s\n", request->methodToString(), request->url().c_str());
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}
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bool _authenticate(AsyncWebServerRequest *request) {
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String password = getSetting("adminPass", ADMIN_PASS);
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char httpPassword[password.length() + 1];
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password.toCharArray(httpPassword, password.length() + 1);
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return request->authenticate(HTTP_USERNAME, httpPassword);
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}
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bool _authAPI(AsyncWebServerRequest *request) {
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if (getSetting("apiEnabled").toInt() == 0) {
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DEBUG_MSG("[WEBSERVER] HTTP API is not enabled\n");
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request->send(403);
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return false;
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}
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if (!request->hasParam("apikey", (request->method() == HTTP_PUT))) {
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DEBUG_MSG("[WEBSERVER] Missing apikey parameter\n");
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request->send(403);
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return false;
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}
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AsyncWebParameter* p = request->getParam("apikey", (request->method() == HTTP_PUT));
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|
if (!p->value().equals(getSetting("apiKey"))) {
|
|
DEBUG_MSG("[WEBSERVER] Wrong apikey parameter\n");
|
|
request->send(403);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
bool _asJson(AsyncWebServerRequest *request) {
|
|
bool asJson = false;
|
|
if (request->hasHeader("Accept")) {
|
|
AsyncWebHeader* h = request->getHeader("Accept");
|
|
asJson = h->value().equals("application/json");
|
|
}
|
|
return asJson;
|
|
}
|
|
|
|
ArRequestHandlerFunction _bindAPI(unsigned int apiID) {
|
|
|
|
return [apiID](AsyncWebServerRequest *request) {
|
|
webLogRequest(request);
|
|
|
|
if (!_authAPI(request)) return;
|
|
|
|
bool asJson = _asJson(request);
|
|
|
|
web_api_t api = _apis[apiID];
|
|
if (request->method() == HTTP_PUT) {
|
|
if (request->hasParam("value", true)) {
|
|
AsyncWebParameter* p = request->getParam("value", true);
|
|
(api.putFn)((p->value()).c_str());
|
|
}
|
|
}
|
|
|
|
char value[10];
|
|
(api.getFn)(value, 10);
|
|
|
|
// jump over leading spaces
|
|
char *p = value;
|
|
while ((unsigned char) *p == ' ') ++p;
|
|
|
|
if (asJson) {
|
|
char buffer[64];
|
|
sprintf_P(buffer, PSTR("{ \"%s\": %s }"), api.key, p);
|
|
request->send(200, "application/json", buffer);
|
|
} else {
|
|
request->send(200, "text/plain", p);
|
|
}
|
|
|
|
};
|
|
|
|
}
|
|
|
|
void apiRegister(const char * url, const char * key, apiGetCallbackFunction getFn, apiPutCallbackFunction putFn) {
|
|
|
|
// Store it
|
|
web_api_t api;
|
|
api.url = strdup(url);
|
|
api.key = strdup(key);
|
|
api.getFn = getFn;
|
|
api.putFn = putFn;
|
|
_apis.push_back(api);
|
|
|
|
// Bind call
|
|
unsigned int methods = HTTP_GET;
|
|
if (putFn != NULL) methods += HTTP_PUT;
|
|
server.on(url, methods, _bindAPI(_apis.size() - 1));
|
|
|
|
}
|
|
|
|
void _onAPIs(AsyncWebServerRequest *request) {
|
|
|
|
webLogRequest(request);
|
|
|
|
if (!_authAPI(request)) return;
|
|
|
|
bool asJson = _asJson(request);
|
|
|
|
String output;
|
|
if (asJson) {
|
|
DynamicJsonBuffer jsonBuffer;
|
|
JsonObject& root = jsonBuffer.createObject();
|
|
for (unsigned int i=0; i < _apis.size(); i++) {
|
|
root[_apis[i].key] = _apis[i].url;
|
|
}
|
|
root.printTo(output);
|
|
request->send(200, "application/json", output);
|
|
|
|
} else {
|
|
for (unsigned int i=0; i < _apis.size(); i++) {
|
|
output += _apis[i].key + String(" -> ") + _apis[i].url + String("\n<br />");
|
|
}
|
|
request->send(200, "text/plain", output);
|
|
}
|
|
|
|
}
|
|
|
|
void _onRPC(AsyncWebServerRequest *request) {
|
|
|
|
webLogRequest(request);
|
|
|
|
if (!_authAPI(request)) return;
|
|
|
|
//bool asJson = _asJson(request);
|
|
int response = 404;
|
|
|
|
if (request->hasParam("action")) {
|
|
|
|
AsyncWebParameter* p = request->getParam("action");
|
|
String action = p->value();
|
|
DEBUG_MSG("[RPC] Action: %s\n", action.c_str());
|
|
|
|
if (action.equals("reset")) {
|
|
response = 200;
|
|
deferred.once_ms(100, []() { ESP.reset(); });
|
|
}
|
|
|
|
}
|
|
|
|
request->send(response);
|
|
|
|
}
|
|
|
|
void _onHome(AsyncWebServerRequest *request) {
|
|
|
|
webLogRequest(request);
|
|
|
|
if (!_authenticate(request)) return request->requestAuthentication();
|
|
|
|
String password = getSetting("adminPass", ADMIN_PASS);
|
|
if (password.equals(ADMIN_PASS)) {
|
|
request->send(SPIFFS, "/password.html");
|
|
} else {
|
|
request->send(SPIFFS, "/index.html");
|
|
}
|
|
|
|
}
|
|
|
|
void _onAuth(AsyncWebServerRequest *request) {
|
|
|
|
webLogRequest(request);
|
|
|
|
if (!_authenticate(request)) return request->requestAuthentication();
|
|
|
|
IPAddress ip = request->client()->remoteIP();
|
|
unsigned long now = millis();
|
|
unsigned short index;
|
|
for (index = 0; index < WS_BUFFER_SIZE; index++) {
|
|
if (_ticket[index].ip == ip) break;
|
|
if (_ticket[index].timestamp == 0) break;
|
|
if (now - _ticket[index].timestamp > WS_TIMEOUT) break;
|
|
}
|
|
if (index == WS_BUFFER_SIZE) {
|
|
request->send(423);
|
|
} else {
|
|
_ticket[index].ip = ip;
|
|
_ticket[index].timestamp = now;
|
|
request->send(204);
|
|
}
|
|
|
|
}
|
|
|
|
AsyncWebServer * getServer() {
|
|
return &server;
|
|
}
|
|
|
|
void webSetup() {
|
|
|
|
// Setup websocket
|
|
ws.onEvent(_wsEvent);
|
|
mqttRegister(wsMQTTCallback);
|
|
|
|
// Setup webserver
|
|
server.addHandler(&ws);
|
|
|
|
// Serve home (basic authentication protection)
|
|
server.on("/", HTTP_GET, _onHome);
|
|
server.on("/index.html", HTTP_GET, _onHome);
|
|
server.on("/auth", HTTP_GET, _onAuth);
|
|
server.on("/apis", HTTP_GET, _onAPIs);
|
|
server.on("/rpc", HTTP_GET, _onRPC);
|
|
|
|
// Serve static files
|
|
char lastModified[50];
|
|
sprintf(lastModified, "%s %s GMT", __DATE__, __TIME__);
|
|
server.serveStatic("/", SPIFFS, "/").setLastModified(lastModified);
|
|
|
|
// 404
|
|
server.onNotFound([](AsyncWebServerRequest *request){
|
|
request->send(404);
|
|
});
|
|
|
|
// Run server
|
|
server.begin();
|
|
|
|
}
|