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mhsw-espurna/code/espurna/web.ino

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/*
WEBSERVER MODULE
Copyright (C) 2016-2017 by Xose Pérez <xose dot perez at gmail dot com>
*/
#if WEB_SUPPORT
#include <ESPAsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <Hash.h>
#include <FS.h>
#include <AsyncJson.h>
#include <ArduinoJson.h>
#include <Ticker.h>
#include <vector>
#if WEB_EMBEDDED
#include "static/index.html.gz.h"
#endif // WEB_EMBEDDED
#if ASYNC_TCP_SSL_ENABLED & WEB_SSL_ENABLED
#include "static/server.cer.h"
#include "static/server.key.h"
#endif // ASYNC_TCP_SSL_ENABLED & WEB_SSL_ENABLED
// -----------------------------------------------------------------------------
AsyncWebServer * _server;
char _last_modified[50];
Ticker _web_defer;
// -----------------------------------------------------------------------------
AsyncWebSocket _ws("/ws");
typedef struct {
IPAddress ip;
unsigned long timestamp = 0;
} ws_ticket_t;
ws_ticket_t _ticket[WS_BUFFER_SIZE];
// -----------------------------------------------------------------------------
typedef struct {
char * url;
char * key;
apiGetCallbackFunction getFn = NULL;
apiPutCallbackFunction putFn = NULL;
} web_api_t;
std::vector<web_api_t> _apis;
// -----------------------------------------------------------------------------
// WEBSOCKETS
// -----------------------------------------------------------------------------
void _wsMQTTCallback(unsigned int type, const char * topic, const char * payload) {
if (type == MQTT_CONNECT_EVENT) {
wsSend_P(PSTR("{\"mqttStatus\": true}"));
}
if (type == MQTT_DISCONNECT_EVENT) {
wsSend_P(PSTR("{\"mqttStatus\": false}"));
}
}
void _wsParse(uint32_t client_id, uint8_t * payload, size_t length) {
// Parse JSON input
DynamicJsonBuffer jsonBuffer;
JsonObject& root = jsonBuffer.parseObject((char *) payload);
if (!root.success()) {
DEBUG_MSG_P(PSTR("[WEBSOCKET] Error parsing data\n"));
wsSend_P(client_id, PSTR("{\"message\": 3}"));
return;
}
// Check actions
if (root.containsKey("action")) {
String action = root["action"];
DEBUG_MSG_P(PSTR("[WEBSOCKET] Requested action: %s\n"), action.c_str());
if (action.equals("reset")) {
customReset(CUSTOM_RESET_WEB);
ESP.restart();
}
#ifdef ITEAD_SONOFF_RFBRIDGE
if (action.equals("rfblearn") && root.containsKey("data")) {
JsonObject& data = root["data"];
rfbLearn(data["id"], data["status"]);
}
if (action.equals("rfbforget") && root.containsKey("data")) {
JsonObject& data = root["data"];
rfbForget(data["id"], data["status"]);
}
if (action.equals("rfbsend") && root.containsKey("data")) {
JsonObject& data = root["data"];
rfbStore(data["id"], data["status"], data["data"].as<const char*>());
}
#endif
if (action.equals("restore") && root.containsKey("data")) {
JsonObject& data = root["data"];
if (!data.containsKey("app") || (data["app"] != APP_NAME)) {
wsSend_P(client_id, PSTR("{\"message\": 4}"));
return;
}
for (unsigned int i = EEPROM_DATA_END; i < SPI_FLASH_SEC_SIZE; i++) {
EEPROM.write(i, 0xFF);
}
for (auto element : data) {
if (strcmp(element.key, "app") == 0) continue;
if (strcmp(element.key, "version") == 0) continue;
setSetting(element.key, element.value.as<char*>());
}
saveSettings();
wsSend_P(client_id, PSTR("{\"message\": 5}"));
}
if (action.equals("reconnect")) {
// Let the HTTP request return and disconnect after 100ms
_web_defer.once_ms(100, wifiDisconnect);
}
if (action.equals("relay") && root.containsKey("data")) {
JsonObject& data = root["data"];
if (data.containsKey("status")) {
unsigned char value = relayParsePayload(data["status"]);
if (value == 3) {
relayWS();
} elseif (value < 3) {
unsigned int relayID = 0;
if (data.containsKey("id")) {
String value = data["id"];
relayID = value.toInt();
}
// Action to perform
if (value == 0) {
relayStatus(relayID, false);
} elseif (value == 1) {
relayStatus(relayID, true);
} elseif (value == 2) {
relayToggle(relayID);
}
}
}
}
#if HOMEASSISTANT_SUPPORT
if (action.equals("ha_send") && root.containsKey("data")) {
String value = root["data"];
setSetting("haPrefix", value);
haSend();
wsSend_P(client_id, PSTR("{\"message\": 6}"));
}
#endif
#if LIGHT_PROVIDER != LIGHT_PROVIDER_NONE
if (lightHasColor()) {
if (action.equals("color") && root.containsKey("data")) {
lightColor(root["data"]);
lightUpdate(true, true);
}
if (action.equals("brightness") && root.containsKey("data")) {
lightBrightness(root["data"]);
lightUpdate(true, true);
}
}
if (action.equals("channel") && root.containsKey("data")) {
JsonObject& data = root["data"];
if (data.containsKey("id") && data.containsKey("value")) {
lightChannel(data["id"], data["value"]);
lightUpdate(true, true);
}
}
#endif
};
// Check config
if (root.containsKey("config") && root["config"].is<JsonArray&>()) {
JsonArray& config = root["config"];
DEBUG_MSG_P(PSTR("[WEBSOCKET] Parsing configuration data\n"));
unsigned char webMode = WEB_MODE_NORMAL;
bool save = false;
bool changed = false;
bool changedMQTT = false;
bool changedNTP = false;
unsigned int network = 0;
unsigned int dczRelayIdx = 0;
String adminPass;
for (unsigned int i=0; i<config.size(); i++) {
String key = config[i]["name"];
String value = config[i]["value"];
// Skip firmware filename
if (key.equals("filename")) continue;
#if POWER_PROVIDER != POWER_PROVIDER_NONE
if (key == "pwrExpectedP") {
powerCalibrate(POWER_MAGNITUDE_ACTIVE, value.toFloat());
changed = true;
continue;
}
if (key == "pwrExpectedV") {
powerCalibrate(POWER_MAGNITUDE_VOLTAGE, value.toFloat());
changed = true;
continue;
}
if (key == "pwrExpectedC") {
powerCalibrate(POWER_MAGNITUDE_CURRENT, value.toFloat());
changed = true;
continue;
}
if (key == "pwrExpectedF") {
powerCalibrate(POWER_MAGNITUDE_POWER_FACTOR, value.toFloat());
changed = true;
continue;
}
if (key == "pwrResetCalibration") {
if (value.toInt() == 1) {
powerResetCalibration();
changed = true;
}
continue;
}
#endif
#if DOMOTICZ_SUPPORT
if (key == "dczRelayIdx") {
if (dczRelayIdx >= relayCount()) continue;
key = key + String(dczRelayIdx);
++dczRelayIdx;
}
#else
if (key.startsWith("dcz")) continue;
#endif
// Web portions
if (key == "webPort") {
if ((value.toInt() == 0) || (value.toInt() == 80)) {
save = changed = true;
delSetting(key);
continue;
}
}
if (key == "webMode") {
webMode = value.toInt();
continue;
}
// Check password
if (key == "adminPass1") {
adminPass = value;
continue;
}
if (key == "adminPass2") {
if (!value.equals(adminPass)) {
wsSend_P(client_id, PSTR("{\"message\": 7}"));
return;
}
if (value.length() == 0) continue;
wsSend_P(client_id, PSTR("{\"action\": \"reload\"}"));
key = String("adminPass");
}
if (key == "ssid") {
key = key + String(network);
}
if (key == "pass") {
key = key + String(network);
}
if (key == "ip") {
key = key + String(network);
}
if (key == "gw") {
key = key + String(network);
}
if (key == "mask") {
key = key + String(network);
}
if (key == "dns") {
key = key + String(network);
++network;
}
if (value != getSetting(key)) {
//DEBUG_MSG_P(PSTR("[WEBSOCKET] Storing %s = %s\n", key.c_str(), value.c_str()));
setSetting(key, value);
save = changed = true;
if (key.startsWith("mqtt")) changedMQTT = true;
#if NTP_SUPPORT
if (key.startsWith("ntp")) changedNTP = true;
#endif
}
}
if (webMode == WEB_MODE_NORMAL) {
// Clean wifi networks
int i = 0;
while (i < network) {
if (getSetting("ssid" + String(i)).length() == 0) {
delSetting("ssid" + String(i));
break;
}
if (getSetting("pass" + String(i)).length() == 0) delSetting("pass" + String(i));
if (getSetting("ip" + String(i)).length() == 0) delSetting("ip" + String(i));
if (getSetting("gw" + String(i)).length() == 0) delSetting("gw" + String(i));
if (getSetting("mask" + String(i)).length() == 0) delSetting("mask" + String(i));
if (getSetting("dns" + String(i)).length() == 0) delSetting("dns" + String(i));
++i;
}
while (i < WIFI_MAX_NETWORKS) {
if (getSetting("ssid" + String(i)).length() > 0) {
save = changed = true;
}
delSetting("ssid" + String(i));
delSetting("pass" + String(i));
delSetting("ip" + String(i));
delSetting("gw" + String(i));
delSetting("mask" + String(i));
delSetting("dns" + String(i));
++i;
}
}
// Save settings
if (save) {
saveSettings();
wifiConfigure();
otaConfigure();
if (changedMQTT) {
mqttConfigure();
mqttDisconnect();
}
#if ALEXA_SUPPORT
alexaConfigure();
#endif
#if INFLUXDB_SUPPORT
influxDBConfigure();
#endif
#if DOMOTICZ_SUPPORT
domoticzConfigure();
#endif
#if NOFUSS_SUPPORT
nofussConfigure();
#endif
#if RF_SUPPORT
rfBuildCodes();
#endif
#if POWER_PROVIDER != POWER_PROVIDER_NONE
powerConfigure();
#endif
#if NTP_SUPPORT
if (changedNTP) ntpConnect();
#endif
}
if (changed) {
wsSend_P(client_id, PSTR("{\"message\": 8}"));
} else {
wsSend_P(client_id, PSTR("{\"message\": 9}"));
}
}
}
void _wsStart(uint32_t client_id) {
char chipid[7];
snprintf_P(chipid, sizeof(chipid), PSTR("%06X"), ESP.getChipId());
DynamicJsonBuffer jsonBuffer;
JsonObject& root = jsonBuffer.createObject();
bool changePassword = false;
#if WEB_FORCE_PASS_CHANGE
String adminPass = getSetting("adminPass", ADMIN_PASS);
if (adminPass.equals(ADMIN_PASS)) changePassword = true;
#endif
if (changePassword) {
root["webMode"] = WEB_MODE_PASSWORD;
} else {
root["webMode"] = WEB_MODE_NORMAL;
root["app"] = APP_NAME;
root["version"] = APP_VERSION;
root["build"] = buildTime();
root["manufacturer"] = String(MANUFACTURER);
root["chipid"] = chipid;
root["mac"] = WiFi.macAddress();
root["device"] = String(DEVICE);
root["hostname"] = getSetting("hostname");
root["network"] = getNetwork();
root["deviceip"] = getIP();
root["time"] = ntpDateTime();
root["uptime"] = getUptime();
root["heap"] = ESP.getFreeHeap();
root["sketch_size"] = ESP.getSketchSize();
root["free_size"] = ESP.getFreeSketchSpace();
#if NTP_SUPPORT
root["ntpVisible"] = 1;
root["ntpStatus"] = ntpConnected();
root["ntpServer1"] = getSetting("ntpServer1", NTP_SERVER);
root["ntpServer2"] = getSetting("ntpServer2");
root["ntpServer3"] = getSetting("ntpServer3");
root["ntpOffset"] = getSetting("ntpOffset", NTP_TIME_OFFSET).toInt();
root["ntpDST"] = getSetting("ntpDST", NTP_DAY_LIGHT).toInt() == 1;
#endif
root["mqttStatus"] = mqttConnected();
root["mqttEnabled"] = mqttEnabled();
root["mqttServer"] = getSetting("mqttServer", MQTT_SERVER);
root["mqttPort"] = getSetting("mqttPort", MQTT_PORT);
root["mqttUser"] = getSetting("mqttUser");
root["mqttPassword"] = getSetting("mqttPassword");
#if ASYNC_TCP_SSL_ENABLED
root["mqttsslVisible"] = 1;
root["mqttUseSSL"] = getSetting("mqttUseSSL", 0).toInt() == 1;
root["mqttFP"] = getSetting("mqttFP");
#endif
root["mqttTopic"] = getSetting("mqttTopic", MQTT_TOPIC);
root["mqttUseJson"] = getSetting("mqttUseJson", MQTT_USE_JSON).toInt() == 1;
JsonArray& relay = root.createNestedArray("relayStatus");
for (unsigned char relayID=0; relayID<relayCount(); relayID++) {
relay.add(relayStatus(relayID));
}
#if LIGHT_PROVIDER != LIGHT_PROVIDER_NONE
root["colorVisible"] = 1;
root["useColor"] = getSetting("useColor", LIGHT_USE_COLOR).toInt() == 1;
root["useWhite"] = getSetting("useWhite", LIGHT_USE_WHITE).toInt() == 1;
root["useGamma"] = getSetting("useGamma", LIGHT_USE_GAMMA).toInt() == 1;
if (lightHasColor()) {
root["color"] = lightColor();
root["brightness"] = lightBrightness();
}
JsonArray& channels = root.createNestedArray("channels");
for (unsigned char id=0; id < lightChannels(); id++) {
channels.add(lightChannel(id));
}
#endif
root["relayMode"] = getSetting("relayMode", RELAY_MODE);
root["relayPulseMode"] = getSetting("relayPulseMode", RELAY_PULSE_MODE);
root["relayPulseTime"] = getSetting("relayPulseTime", RELAY_PULSE_TIME).toFloat();
if (relayCount() > 1) {
root["multirelayVisible"] = 1;
root["relaySync"] = getSetting("relaySync", RELAY_SYNC);
}
root["btnDelay"] = getSetting("btnDelay", BUTTON_DBLCLICK_DELAY).toInt();
root["webPort"] = getSetting("webPort", WEB_PORT).toInt();
root["apiEnabled"] = getSetting("apiEnabled", API_ENABLED).toInt() == 1;
root["apiKey"] = getSetting("apiKey");
root["tmpUnits"] = getSetting("tmpUnits", TMP_UNITS).toInt();
#if HOMEASSISTANT_SUPPORT
root["haVisible"] = 1;
root["haPrefix"] = getSetting("haPrefix", HOMEASSISTANT_PREFIX);
#endif // HOMEASSISTANT_SUPPORT
#if DOMOTICZ_SUPPORT
root["dczVisible"] = 1;
root["dczEnabled"] = getSetting("dczEnabled", DOMOTICZ_ENABLED).toInt() == 1;
root["dczTopicIn"] = getSetting("dczTopicIn", DOMOTICZ_IN_TOPIC);
root["dczTopicOut"] = getSetting("dczTopicOut", DOMOTICZ_OUT_TOPIC);
JsonArray& dczRelayIdx = root.createNestedArray("dczRelayIdx");
for (byte i=0; i<relayCount(); i++) {
dczRelayIdx.add(domoticzIdx(i));
}
#if DHT_SUPPORT
root["dczTmpIdx"] = getSetting("dczTmpIdx").toInt();
root["dczHumIdx"] = getSetting("dczHumIdx").toInt();
#endif
#if DS18B20_SUPPORT
root["dczTmpIdx"] = getSetting("dczTmpIdx").toInt();
#endif
#if ANALOG_SUPPORT
root["dczAnaIdx"] = getSetting("dczAnaIdx").toInt();
#endif
#if POWER_PROVIDER != POWER_PROVIDER_NONE
root["dczPowIdx"] = getSetting("dczPowIdx").toInt();
root["dczEnergyIdx"] = getSetting("dczEnergyIdx").toInt();
root["dczCurrentIdx"] = getSetting("dczCurrentIdx").toInt();
#if POWER_HAS_ACTIVE
root["dczVoltIdx"] = getSetting("dczVoltIdx").toInt();
#endif
#endif
#endif
#if INFLUXDB_SUPPORT
root["idbVisible"] = 1;
root["idbHost"] = getSetting("idbHost");
root["idbPort"] = getSetting("idbPort", INFLUXDB_PORT).toInt();
root["idbDatabase"] = getSetting("idbDatabase");
root["idbUsername"] = getSetting("idbUsername");
root["idbPassword"] = getSetting("idbPassword");
#endif
#if ALEXA_SUPPORT
root["alexaVisible"] = 1;
root["alexaEnabled"] = getSetting("alexaEnabled", ALEXA_ENABLED).toInt() == 1;
#endif
#if DS18B20_SUPPORT
root["dsVisible"] = 1;
root["dsTmp"] = getDSTemperatureStr();
#endif
#if DHT_SUPPORT
root["dhtVisible"] = 1;
root["dhtTmp"] = getDHTTemperature();
root["dhtHum"] = getDHTHumidity();
#endif
#if RF_SUPPORT
root["rfVisible"] = 1;
root["rfChannel"] = getSetting("rfChannel", RF_CHANNEL);
root["rfDevice"] = getSetting("rfDevice", RF_DEVICE);
#endif
#if ANALOG_SUPPORT
root["analogVisible"] = 1;
root["analogValue"] = getAnalog();
#endif
#if COUNTER_SUPPORT
root["counterVisible"] = 1;
root["counterValue"] = getCounter();
#endif
#if POWER_PROVIDER != POWER_PROVIDER_NONE
root["pwrVisible"] = 1;
root["pwrCurrent"] = getCurrent();
root["pwrVoltage"] = getVoltage();
root["pwrApparent"] = getApparentPower();
#if POWER_HAS_ACTIVE
root["pwrActive"] = getActivePower();
root["pwrReactive"] = getReactivePower();
root["pwrFactor"] = int(100 * getPowerFactor());
#endif
#if (POWER_PROVIDER == POWER_PROVIDER_EMON_ANALOG) || (POWER_PROVIDER == POWER_PROVIDER_EMON_ADC121)
root["emonVisible"] = 1;
#endif
#if POWER_PROVIDER == POWER_PROVIDER_HLW8012
root["hlwVisible"] = 1;
#endif
#if POWER_PROVIDER == POWER_PROVIDER_V9261F
root["v9261fVisible"] = 1;
#endif
#if POWER_PROVIDER == POWER_PROVIDER_ECH1560
root["ech1560fVisible"] = 1;
#endif
#endif
#if NOFUSS_SUPPORT
root["nofussVisible"] = 1;
root["nofussEnabled"] = getSetting("nofussEnabled", NOFUSS_ENABLED).toInt() == 1;
root["nofussServer"] = getSetting("nofussServer", NOFUSS_SERVER);
#endif
#ifdef ITEAD_SONOFF_RFBRIDGE
root["rfbVisible"] = 1;
root["rfbCount"] = relayCount();
JsonArray& rfb = root.createNestedArray("rfb");
for (byte id=0; id<relayCount(); id++) {
for (byte status=0; status<2; status++) {
JsonObject& node = rfb.createNestedObject();
node["id"] = id;
node["status"] = status;
node["data"] = rfbRetrieve(id, status == 1);
}
}
#endif
root["maxNetworks"] = WIFI_MAX_NETWORKS;
JsonArray& wifi = root.createNestedArray("wifi");
for (byte i=0; i<WIFI_MAX_NETWORKS; i++) {
if (getSetting("ssid" + String(i)).length() == 0) break;
JsonObject& network = wifi.createNestedObject();
network["ssid"] = getSetting("ssid" + String(i));
network["pass"] = getSetting("pass" + String(i));
network["ip"] = getSetting("ip" + String(i));
network["gw"] = getSetting("gw" + String(i));
network["mask"] = getSetting("mask" + String(i));
network["dns"] = getSetting("dns" + String(i));
}
}
String output;
root.printTo(output);
wsSend(client_id, (char *) output.c_str());
}
bool _wsAuth(AsyncWebSocketClient * client) {
IPAddress ip = client->remoteIP();
unsigned long now = millis();
unsigned short index = 0;
for (index = 0; index < WS_BUFFER_SIZE; index++) {
if ((_ticket[index].ip == ip) && (now - _ticket[index].timestamp < WS_TIMEOUT)) break;
}
if (index == WS_BUFFER_SIZE) {
DEBUG_MSG_P(PSTR("[WEBSOCKET] Validation check failed\n"));
wsSend_P(client->id(), PSTR("{\"message\": 10}"));
return false;
}
return true;
}
void _wsEvent(AsyncWebSocket * server, AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len){
static uint8_t * message;
// Authorize
#ifndef NOWSAUTH
if (!_wsAuth(client)) return;
#endif
if (type == WS_EVT_CONNECT) {
IPAddress ip = client->remoteIP();
DEBUG_MSG_P(PSTR("[WEBSOCKET] #%u connected, ip: %d.%d.%d.%d, url: %s\n"), client->id(), ip[0], ip[1], ip[2], ip[3], server->url());
_wsStart(client->id());
} else if(type == WS_EVT_DISCONNECT) {
DEBUG_MSG_P(PSTR("[WEBSOCKET] #%u disconnected\n"), client->id());
} else if(type == WS_EVT_ERROR) {
DEBUG_MSG_P(PSTR("[WEBSOCKET] #%u error(%u): %s\n"), client->id(), *((uint16_t*)arg), (char*)data);
} else if(type == WS_EVT_PONG) {
DEBUG_MSG_P(PSTR("[WEBSOCKET] #%u pong(%u): %s\n"), client->id(), len, len ? (char*) data : "");
} else if(type == WS_EVT_DATA) {
AwsFrameInfo * info = (AwsFrameInfo*)arg;
// First packet
if (info->index == 0) {
message = (uint8_t*) malloc(info->len);
}
// Store data
memcpy(message + info->index, data, len);
// Last packet
if (info->index + len == info->len) {
_wsParse(client->id(), message, info->len);
free(message);
}
}
}
// -----------------------------------------------------------------------------
bool wsConnected() {
return (_ws.count() > 0);
}
void wsSend(const char * payload) {
if (_ws.count() > 0) {
_ws.textAll(payload);
}
}
void wsSend_P(PGM_P payload) {
if (_ws.count() > 0) {
char buffer[strlen_P(payload)];
strcpy_P(buffer, payload);
_ws.textAll(buffer);
}
}
void wsSend(uint32_t client_id, const char * payload) {
_ws.text(client_id, payload);
}
void wsSend_P(uint32_t client_id, PGM_P payload) {
char buffer[strlen_P(payload)];
strcpy_P(buffer, payload);
_ws.text(client_id, buffer);
}
void wsSetup() {
_ws.onEvent(_wsEvent);
mqttRegister(_wsMQTTCallback);
_server->addHandler(&_ws);
_server->on("/auth", HTTP_GET, _onAuth);
}
// -----------------------------------------------------------------------------
// API
// -----------------------------------------------------------------------------
bool _authAPI(AsyncWebServerRequest *request) {
if (getSetting("apiEnabled", API_ENABLED).toInt() == 0) {
DEBUG_MSG_P(PSTR("[WEBSERVER] HTTP API is not enabled\n"));
request->send(403);
return false;
}
if (!request->hasParam("apikey", (request->method() == HTTP_PUT))) {
DEBUG_MSG_P(PSTR("[WEBSERVER] Missing apikey parameter\n"));
request->send(403);
return false;
}
AsyncWebParameter* p = request->getParam("apikey", (request->method() == HTTP_PUT));
if (!p->value().equals(getSetting("apiKey"))) {
DEBUG_MSG_P(PSTR("[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) {
_webLog(request);
if (!_authAPI(request)) return;
web_api_t api = _apis[apiID];
// Check if its a PUT
if (api.putFn != NULL) {
if (request->hasParam("value", request->method() == HTTP_PUT)) {
AsyncWebParameter* p = request->getParam("value", request->method() == HTTP_PUT);
(api.putFn)((p->value()).c_str());
}
}
// Get response from callback
char value[API_BUFFER_SIZE];
(api.getFn)(value, API_BUFFER_SIZE);
// The response will be a 404 NOT FOUND if the resource is not available
if (!value) {
DEBUG_MSG_P(PSTR("[API] Sending 404 response\n"));
request->send(404);
return;
}
DEBUG_MSG_P(PSTR("[API] Sending response '%s'\n"), value);
// Format response according to the Accept header
if (_asJson(request)) {
char buffer[64];
snprintf_P(buffer, sizeof(buffer), PSTR("{ \"%s\": %s }"), api.key, value);
request->send(200, "application/json", buffer);
} else {
request->send(200, "text/plain", value);
}
};
}
void _onAPIs(AsyncWebServerRequest *request) {
_webLog(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");
}
request->send(200, "text/plain", output);
}
}
void _onRPC(AsyncWebServerRequest *request) {
_webLog(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_P(PSTR("[RPC] Action: %s\n"), action.c_str());
if (action.equals("reset")) {
response = 200;
_web_defer.once_ms(100, []() {
customReset(CUSTOM_RESET_RPC);
ESP.restart();
});
}
}
request->send(response);
}
// -----------------------------------------------------------------------------
void apiRegister(const char * url, const char * key, apiGetCallbackFunction getFn, apiPutCallbackFunction putFn) {
// Store it
web_api_t api;
char buffer[40];
snprintf_P(buffer, sizeof(buffer), PSTR("/api/%s"), url);
api.url = strdup(buffer);
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(buffer, methods, _bindAPI(_apis.size() - 1));
}
void apiSetup() {
_server->on("/apis", HTTP_GET, _onAPIs);
_server->on("/rpc", HTTP_GET, _onRPC);
}
// -----------------------------------------------------------------------------
// WEBSERVER
// -----------------------------------------------------------------------------
void _webLog(AsyncWebServerRequest *request) {
DEBUG_MSG_P(PSTR("[WEBSERVER] Request: %s %s\n"), request->methodToString(), request->url().c_str());
}
bool _authenticate(AsyncWebServerRequest *request) {
String password = getSetting("adminPass", ADMIN_PASS);
char httpPassword[password.length() + 1];
password.toCharArray(httpPassword, password.length() + 1);
return request->authenticate(WEB_USERNAME, httpPassword);
}
void _onAuth(AsyncWebServerRequest *request) {
_webLog(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(429);
} else {
_ticket[index].ip = ip;
_ticket[index].timestamp = now;
request->send(204);
}
}
void _onGetConfig(AsyncWebServerRequest *request) {
_webLog(request);
if (!_authenticate(request)) return request->requestAuthentication();
AsyncJsonResponse * response = new AsyncJsonResponse();
JsonObject& root = response->getRoot();
root["app"] = APP_NAME;
root["version"] = APP_VERSION;
unsigned int size = settingsKeyCount();
for (unsigned int i=0; i<size; i++) {
String key = settingsKeyName(i);
String value = getSetting(key);
root[key] = value;
}
char buffer[100];
snprintf_P(buffer, sizeof(buffer), PSTR("attachment; filename=\"%s-backup.json\""), (char *) getSetting("hostname").c_str());
response->addHeader("Content-Disposition", buffer);
response->setLength();
request->send(response);
}
#if WEB_EMBEDDED
void _onHome(AsyncWebServerRequest *request) {
_webLog(request);
if (request->header("If-Modified-Since").equals(_last_modified)) {
request->send(304);
} else {
#if ASYNC_TCP_SSL_ENABLED
// Chunked response, we calculate the chunks based on free heap (in multiples of 32)
// This is necessary when a TLS connection is open since it sucks too much memory
DEBUG_MSG_P(PSTR("[MAIN] Free heap: %d bytes\n"), ESP.getFreeHeap());
size_t max = (ESP.getFreeHeap() / 3) & 0xFFE0;
AsyncWebServerResponse *response = request->beginChunkedResponse("text/html", [max](uint8_t *buffer, size_t maxLen, size_t index) -> size_t {
// Get the chunk based on the index and maxLen
size_t len = index_html_gz_len - index;
if (len > maxLen) len = maxLen;
if (len > max) len = max;
if (len > 0) memcpy_P(buffer, index_html_gz + index, len);
DEBUG_MSG_P(PSTR("[WEB] Sending %d%%%% (max chunk size: %4d)\r"), int(100 * index / index_html_gz_len), max);
if (len == 0) DEBUG_MSG_P(PSTR("\n"));
// Return the actual length of the chunk (0 for end of file)
return len;
});
#else
AsyncWebServerResponse *response = request->beginResponse_P(200, "text/html", index_html_gz, index_html_gz_len);
#endif
response->addHeader("Content-Encoding", "gzip");
response->addHeader("Last-Modified", _last_modified);
request->send(response);
}
}
#endif
#if ASYNC_TCP_SSL_ENABLED & WEB_SSL_ENABLED
int _onCertificate(void * arg, const char *filename, uint8_t **buf) {
#if WEB_EMBEDDED
if (strcmp(filename, "server.cer") == 0) {
uint8_t * nbuf = (uint8_t*) malloc(server_cer_len);
memcpy_P(nbuf, server_cer, server_cer_len);
*buf = nbuf;
DEBUG_MSG_P(PSTR("[WEB] SSL File: %s - OK\n"), filename);
return server_cer_len;
}
if (strcmp(filename, "server.key") == 0) {
uint8_t * nbuf = (uint8_t*) malloc(server_key_len);
memcpy_P(nbuf, server_key, server_key_len);
*buf = nbuf;
DEBUG_MSG_P(PSTR("[WEB] SSL File: %s - OK\n"), filename);
return server_key_len;
}
DEBUG_MSG_P(PSTR("[WEB] SSL File: %s - ERROR\n"), filename);
*buf = 0;
return 0;
#else
File file = SPIFFS.open(filename, "r");
if (file) {
size_t size = file.size();
uint8_t * nbuf = (uint8_t*) malloc(size);
if (nbuf) {
size = file.read(nbuf, size);
file.close();
*buf = nbuf;
DEBUG_MSG_P(PSTR("[WEB] SSL File: %s - OK\n"), filename);
return size;
}
file.close();
}
DEBUG_MSG_P(PSTR("[WEB] SSL File: %s - ERROR\n"), filename);
*buf = 0;
return 0;
#endif
}
#endif
void _onUpgrade(AsyncWebServerRequest *request) {
char buffer[10];
if (!Update.hasError()) {
sprintf_P(buffer, PSTR("OK"));
} else {
sprintf_P(buffer, PSTR("ERROR %d"), Update.getError());
}
AsyncWebServerResponse *response = request->beginResponse(200, "text/plain", buffer);
response->addHeader("Connection", "close");
if (!Update.hasError()) {
_web_defer.once_ms(100, []() {
customReset(CUSTOM_RESET_UPGRADE);
ESP.restart();
});
}
request->send(response);
}
void _onUpgradeData(AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final) {
if (!index) {
DEBUG_MSG_P(PSTR("[UPGRADE] Start: %s\n"), filename.c_str());
Update.runAsync(true);
if (!Update.begin((ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000)) {
#ifdef DEBUG_PORT
Update.printError(DEBUG_PORT);
#endif
}
}
if (!Update.hasError()) {
if (Update.write(data, len) != len) {
#ifdef DEBUG_PORT
Update.printError(DEBUG_PORT);
#endif
}
}
if (final) {
if (Update.end(true)){
DEBUG_MSG_P(PSTR("[UPGRADE] Success: %u bytes\n"), index + len);
} else {
#ifdef DEBUG_PORT
Update.printError(DEBUG_PORT);
#endif
}
} else {
DEBUG_MSG_P(PSTR("[UPGRADE] Progress: %u bytes\r"), index + len);
}
}
// -----------------------------------------------------------------------------
void webSetup() {
// Cache the Last-Modifier header value
snprintf_P(_last_modified, sizeof(_last_modified), PSTR("%s %s GMT"), __DATE__, __TIME__);
// Create server
#if ASYNC_TCP_SSL_ENABLED & WEB_SSL_ENABLED
unsigned int port = 443;
#else
unsigned int port = getSetting("webPort", WEB_PORT).toInt();
#endif
_server = new AsyncWebServer(port);
// Setup websocket
wsSetup();
// API setup
apiSetup();
// Rewrites
_server->rewrite("/", "/index.html");
// Serve home (basic authentication protection)
#if WEB_EMBEDDED
_server->on("/index.html", HTTP_GET, _onHome);
#endif
_server->on("/config", HTTP_GET, _onGetConfig);
_server->on("/upgrade", HTTP_POST, _onUpgrade, _onUpgradeData);
// Serve static files
#if SPIFFS_SUPPORT
_server->serveStatic("/", SPIFFS, "/")
.setLastModified(_last_modified)
.setFilter([](AsyncWebServerRequest *request) -> bool {
_webLog(request);
return true;
});
#endif
// 404
_server->onNotFound([](AsyncWebServerRequest *request){
request->send(404);
});
// Run server
#if ASYNC_TCP_SSL_ENABLED & WEB_SSL_ENABLED
_server->onSslFileRequest(_onCertificate, NULL);
_server->beginSecure("server.cer", "server.key", NULL);
#else
_server->begin();
#endif
DEBUG_MSG_P(PSTR("[WEBSERVER] Webserver running on port %d\n"), port);
}
#endif // WEB_SUPPORT