How to do WLAN and Webserver, as well as correct partitioning of ESP32

Lib_backup/AsyncEventSource copy.h

@@ -0,0 +1,133 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#ifndef ASYNCEVENTSOURCE_H_
+#define ASYNCEVENTSOURCE_H_
+
+#include <Arduino.h>
+#ifdef ESP32
+#include <AsyncTCP.h>
+#define SSE_MAX_QUEUED_MESSAGES 32
+#else
+#include <ESPAsyncTCP.h>
+#define SSE_MAX_QUEUED_MESSAGES 8
+#endif
+#include <ESPAsyncWebServer.h>
+
+#include "AsyncWebSynchronization.h"
+
+#ifdef ESP8266
+#include <Hash.h>
+#ifdef CRYPTO_HASH_h // include Hash.h from espressif framework if the first include was from the crypto library
+#include <../src/Hash.h>
+#endif
+#endif
+
+#ifdef ESP32
+#define DEFAULT_MAX_SSE_CLIENTS 8
+#else
+#define DEFAULT_MAX_SSE_CLIENTS 4
+#endif
+
+class AsyncEventSource;
+class AsyncEventSourceResponse;
+class AsyncEventSourceClient;
+typedef std::function<void(AsyncEventSourceClient *client)> ArEventHandlerFunction;
+
+class AsyncEventSourceMessage {
+  private:
+    uint8_t * _data; 
+    size_t _len;
+    size_t _sent;
+    //size_t _ack;
+    size_t _acked; 
+  public:
+    AsyncEventSourceMessage(const char * data, size_t len);
+    ~AsyncEventSourceMessage();
+    size_t ack(size_t len, uint32_t time __attribute__((unused)));
+    size_t send(AsyncClient *client);
+    bool finished(){ return _acked == _len; }
+    bool sent() { return _sent == _len; }
+};
+
+class AsyncEventSourceClient {
+  private:
+    AsyncClient *_client;
+    AsyncEventSource *_server;
+    uint32_t _lastId;
+    LinkedList<AsyncEventSourceMessage *> _messageQueue;
+    void _queueMessage(AsyncEventSourceMessage *dataMessage);
+    void _runQueue();
+
+  public:
+
+    AsyncEventSourceClient(AsyncWebServerRequest *request, AsyncEventSource *server);
+    ~AsyncEventSourceClient();
+
+    AsyncClient* client(){ return _client; }
+    void close();
+    void write(const char * message, size_t len);
+    void send(const char *message, const char *event=NULL, uint32_t id=0, uint32_t reconnect=0);
+    bool connected() const { return (_client != NULL) && _client->connected(); }
+    uint32_t lastId() const { return _lastId; }
+    size_t  packetsWaiting() const { return _messageQueue.length(); }
+
+    //system callbacks (do not call)
+    void _onAck(size_t len, uint32_t time);
+    void _onPoll(); 
+    void _onTimeout(uint32_t time);
+    void _onDisconnect();
+};
+
+class AsyncEventSource: public AsyncWebHandler {
+  private:
+    String _url;
+    LinkedList<AsyncEventSourceClient *> _clients;
+    ArEventHandlerFunction _connectcb;
+  public:
+    AsyncEventSource(const String& url);
+    ~AsyncEventSource();
+
+    const char * url() const { return _url.c_str(); }
+    void close();
+    void onConnect(ArEventHandlerFunction cb);
+    void send(const char *message, const char *event=NULL, uint32_t id=0, uint32_t reconnect=0);
+    size_t count() const; //number clinets connected
+    size_t  avgPacketsWaiting() const;
+
+    //system callbacks (do not call)
+    void _addClient(AsyncEventSourceClient * client);
+    void _handleDisconnect(AsyncEventSourceClient * client);
+    virtual bool canHandle(AsyncWebServerRequest *request) override final;
+    virtual void handleRequest(AsyncWebServerRequest *request) override final;
+};
+
+class AsyncEventSourceResponse: public AsyncWebServerResponse {
+  private:
+    String _content;
+    AsyncEventSource *_server;
+  public:
+    AsyncEventSourceResponse(AsyncEventSource *server);
+    void _respond(AsyncWebServerRequest *request);
+    size_t _ack(AsyncWebServerRequest *request, size_t len, uint32_t time);
+    bool _sourceValid() const { return true; }
+};
+
+
+#endif /* ASYNCEVENTSOURCE_H_ */

Lib_backup/AsyncEventSource.cpp

@@ -0,0 +1,368 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#include "Arduino.h"
+#include "AsyncEventSource.h"
+
+static String generateEventMessage(const char *message, const char *event, uint32_t id, uint32_t reconnect){
+  String ev = "";
+
+  if(reconnect){
+    ev += "retry: ";
+    ev += String(reconnect);
+    ev += "\r\n";
+  }
+
+  if(id){
+    ev += "id: ";
+    ev += String(id);
+    ev += "\r\n";
+  }
+
+  if(event != NULL){
+    ev += "event: ";
+    ev += String(event);
+    ev += "\r\n";
+  }
+
+  if(message != NULL){
+    size_t messageLen = strlen(message);
+    char * lineStart = (char *)message;
+    char * lineEnd;
+    do {
+      char * nextN = strchr(lineStart, '\n');
+      char * nextR = strchr(lineStart, '\r');
+      if(nextN == NULL && nextR == NULL){
+        size_t llen = ((char *)message + messageLen) - lineStart;
+        char * ldata = (char *)malloc(llen+1);
+        if(ldata != NULL){
+          memcpy(ldata, lineStart, llen);
+          ldata[llen] = 0;
+          ev += "data: ";
+          ev += ldata;
+          ev += "\r\n\r\n";
+          free(ldata);
+        }
+        lineStart = (char *)message + messageLen;
+      } else {
+        char * nextLine = NULL;
+        if(nextN != NULL && nextR != NULL){
+          if(nextR < nextN){
+            lineEnd = nextR;
+            if(nextN == (nextR + 1))
+              nextLine = nextN + 1;
+            else
+              nextLine = nextR + 1;
+          } else {
+            lineEnd = nextN;
+            if(nextR == (nextN + 1))
+              nextLine = nextR + 1;
+            else
+              nextLine = nextN + 1;
+          }
+        } else if(nextN != NULL){
+          lineEnd = nextN;
+          nextLine = nextN + 1;
+        } else {
+          lineEnd = nextR;
+          nextLine = nextR + 1;
+        }
+
+        size_t llen = lineEnd - lineStart;
+        char * ldata = (char *)malloc(llen+1);
+        if(ldata != NULL){
+          memcpy(ldata, lineStart, llen);
+          ldata[llen] = 0;
+          ev += "data: ";
+          ev += ldata;
+          ev += "\r\n";
+          free(ldata);
+        }
+        lineStart = nextLine;
+        if(lineStart == ((char *)message + messageLen))
+          ev += "\r\n";
+      }
+    } while(lineStart < ((char *)message + messageLen));
+  }
+
+  return ev;
+}
+
+// Message
+
+AsyncEventSourceMessage::AsyncEventSourceMessage(const char * data, size_t len)
+: _data(nullptr), _len(len), _sent(0), _acked(0)
+{
+  _data = (uint8_t*)malloc(_len+1);
+  if(_data == nullptr){
+    _len = 0;
+  } else {
+    memcpy(_data, data, len);
+    _data[_len] = 0;
+  }
+}
+
+AsyncEventSourceMessage::~AsyncEventSourceMessage() {
+     if(_data != NULL)
+        free(_data);
+}
+
+size_t AsyncEventSourceMessage::ack(size_t len, uint32_t time) {
+  (void)time;
+  // If the whole message is now acked...
+  if(_acked + len > _len){
+     // Return the number of extra bytes acked (they will be carried on to the next message)
+     const size_t extra = _acked + len - _len;
+     _acked = _len;
+     return extra;
+  }
+  // Return that no extra bytes left.
+  _acked += len;
+  return 0;
+}
+
+size_t AsyncEventSourceMessage::send(AsyncClient *client) {
+  const size_t len = _len - _sent;
+  if(client->space() < len){
+    return 0;
+  }
+  size_t sent = client->add((const char *)_data, len);
+  if(client->canSend())
+    client->send();
+  _sent += sent;
+  return sent; 
+}
+
+// Client
+
+AsyncEventSourceClient::AsyncEventSourceClient(AsyncWebServerRequest *request, AsyncEventSource *server)
+: _messageQueue(LinkedList<AsyncEventSourceMessage *>([](AsyncEventSourceMessage *m){ delete  m; }))
+{
+  _client = request->client();
+  _server = server;
+  _lastId = 0;
+  if(request->hasHeader("Last-Event-ID"))
+    _lastId = atoi(request->getHeader("Last-Event-ID")->value().c_str());
+    
+  _client->setRxTimeout(0);
+  _client->onError(NULL, NULL);
+  _client->onAck([](void *r, AsyncClient* c, size_t len, uint32_t time){ (void)c; ((AsyncEventSourceClient*)(r))->_onAck(len, time); }, this);
+  _client->onPoll([](void *r, AsyncClient* c){ (void)c; ((AsyncEventSourceClient*)(r))->_onPoll(); }, this);
+  _client->onData(NULL, NULL);
+  _client->onTimeout([this](void *r, AsyncClient* c __attribute__((unused)), uint32_t time){ ((AsyncEventSourceClient*)(r))->_onTimeout(time); }, this);
+  _client->onDisconnect([this](void *r, AsyncClient* c){ ((AsyncEventSourceClient*)(r))->_onDisconnect(); delete c; }, this);
+
+  _server->_addClient(this);
+  delete request;
+}
+
+AsyncEventSourceClient::~AsyncEventSourceClient(){
+   _messageQueue.free();
+  close();
+}
+
+void AsyncEventSourceClient::_queueMessage(AsyncEventSourceMessage *dataMessage){
+  if(dataMessage == NULL)
+    return;
+  if(!connected()){
+    delete dataMessage;
+    return;
+  }
+  if(_messageQueue.length() >= SSE_MAX_QUEUED_MESSAGES){
+      ets_printf("ERROR: Too many messages queued\n");
+      delete dataMessage;
+  } else {
+      _messageQueue.add(dataMessage);
+  }
+  if(_client->canSend())
+    _runQueue();
+}
+
+void AsyncEventSourceClient::_onAck(size_t len, uint32_t time){
+  while(len && !_messageQueue.isEmpty()){
+    len = _messageQueue.front()->ack(len, time);
+    if(_messageQueue.front()->finished())
+      _messageQueue.remove(_messageQueue.front());
+  }
+
+  _runQueue();
+}
+
+void AsyncEventSourceClient::_onPoll(){
+  if(!_messageQueue.isEmpty()){
+    _runQueue();
+  }
+}
+
+
+void AsyncEventSourceClient::_onTimeout(uint32_t time __attribute__((unused))){
+  _client->close(true);
+}
+
+void AsyncEventSourceClient::_onDisconnect(){
+  _client = NULL;
+  _server->_handleDisconnect(this);
+}
+
+void AsyncEventSourceClient::close(){
+  if(_client != NULL)
+    _client->close();
+}
+
+void AsyncEventSourceClient::write(const char * message, size_t len){
+  _queueMessage(new AsyncEventSourceMessage(message, len));
+}
+
+void AsyncEventSourceClient::send(const char *message, const char *event, uint32_t id, uint32_t reconnect){
+  String ev = generateEventMessage(message, event, id, reconnect);
+  _queueMessage(new AsyncEventSourceMessage(ev.c_str(), ev.length()));
+}
+
+void AsyncEventSourceClient::_runQueue(){
+  while(!_messageQueue.isEmpty() && _messageQueue.front()->finished()){
+    _messageQueue.remove(_messageQueue.front());
+  }
+
+  for(auto i = _messageQueue.begin(); i != _messageQueue.end(); ++i)
+  {
+    if(!(*i)->sent())
+      (*i)->send(_client);
+  }
+}
+
+
+// Handler
+
+AsyncEventSource::AsyncEventSource(const String& url)
+  : _url(url)
+  , _clients(LinkedList<AsyncEventSourceClient *>([](AsyncEventSourceClient *c){ delete c; }))
+  , _connectcb(NULL)
+{}
+
+AsyncEventSource::~AsyncEventSource(){
+  close();
+}
+
+void AsyncEventSource::onConnect(ArEventHandlerFunction cb){
+  _connectcb = cb;
+}
+
+void AsyncEventSource::_addClient(AsyncEventSourceClient * client){
+  /*char * temp = (char *)malloc(2054);
+  if(temp != NULL){
+    memset(temp+1,' ',2048);
+    temp[0] = ':';
+    temp[2049] = '\r';
+    temp[2050] = '\n';
+    temp[2051] = '\r';
+    temp[2052] = '\n';
+    temp[2053] = 0;
+    client->write((const char *)temp, 2053);
+    free(temp);
+  }*/
+  
+  _clients.add(client);
+  if(_connectcb)
+    _connectcb(client);
+}
+
+void AsyncEventSource::_handleDisconnect(AsyncEventSourceClient * client){
+  _clients.remove(client);
+}
+
+void AsyncEventSource::close(){
+  for(const auto &c: _clients){
+    if(c->connected())
+      c->close();
+  }
+}
+
+// pmb fix
+size_t AsyncEventSource::avgPacketsWaiting() const {
+  if(_clients.isEmpty())
+    return 0;
+  
+  size_t    aql=0;
+  uint32_t  nConnectedClients=0;
+  
+  for(const auto &c: _clients){
+    if(c->connected()) {
+      aql+=c->packetsWaiting();
+      ++nConnectedClients;
+    }
+  }
+//  return aql / nConnectedClients;
+  return ((aql) + (nConnectedClients/2))/(nConnectedClients); // round up
+}
+
+void AsyncEventSource::send(const char *message, const char *event, uint32_t id, uint32_t reconnect){
+
+
+  String ev = generateEventMessage(message, event, id, reconnect);
+  for(const auto &c: _clients){
+    if(c->connected()) {
+      c->write(ev.c_str(), ev.length());
+    }
+  }
+}
+
+size_t AsyncEventSource::count() const {
+  return _clients.count_if([](AsyncEventSourceClient *c){
+    return c->connected();
+  });
+}
+
+bool AsyncEventSource::canHandle(AsyncWebServerRequest *request){
+  if(request->method() != HTTP_GET || !request->url().equals(_url)) {
+    return false;
+  }
+  request->addInterestingHeader("Last-Event-ID");
+  return true;
+}
+
+void AsyncEventSource::handleRequest(AsyncWebServerRequest *request){
+  if((_username != "" && _password != "") && !request->authenticate(_username.c_str(), _password.c_str()))
+    return request->requestAuthentication();
+  request->send(new AsyncEventSourceResponse(this));
+}
+
+// Response
+
+AsyncEventSourceResponse::AsyncEventSourceResponse(AsyncEventSource *server){
+  _server = server;
+  _code = 200;
+  _contentType = "text/event-stream";
+  _sendContentLength = false;
+  addHeader("Cache-Control", "no-cache");
+  addHeader("Connection","keep-alive");
+}
+
+void AsyncEventSourceResponse::_respond(AsyncWebServerRequest *request){
+  String out = _assembleHead(request->version());
+  request->client()->write(out.c_str(), _headLength);
+  _state = RESPONSE_WAIT_ACK;
+}
+
+size_t AsyncEventSourceResponse::_ack(AsyncWebServerRequest *request, size_t len, uint32_t time __attribute__((unused))){
+  if(len){
+    new AsyncEventSourceClient(request, _server);
+  }
+  return 0;
+}
+

Lib_backup/AsyncEventSource.h

@@ -0,0 +1,133 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#ifndef ASYNCEVENTSOURCE_H_
+#define ASYNCEVENTSOURCE_H_
+
+#include <Arduino.h>
+#ifdef ESP32
+#include <AsyncTCP.h>
+#define SSE_MAX_QUEUED_MESSAGES 32
+#else
+#include <ESPAsyncTCP.h>
+#define SSE_MAX_QUEUED_MESSAGES 8
+#endif
+#include <ESPAsyncWebServer.h>
+
+#include "AsyncWebSynchronization.h"
+
+#ifdef ESP8266
+#include <Hash.h>
+#ifdef CRYPTO_HASH_h // include Hash.h from espressif framework if the first include was from the crypto library
+#include <../src/Hash.h>
+#endif
+#endif
+
+#ifdef ESP32
+#define DEFAULT_MAX_SSE_CLIENTS 8
+#else
+#define DEFAULT_MAX_SSE_CLIENTS 4
+#endif
+
+class AsyncEventSource;
+class AsyncEventSourceResponse;
+class AsyncEventSourceClient;
+typedef std::function<void(AsyncEventSourceClient *client)> ArEventHandlerFunction;
+
+class AsyncEventSourceMessage {
+  private:
+    uint8_t * _data; 
+    size_t _len;
+    size_t _sent;
+    //size_t _ack;
+    size_t _acked; 
+  public:
+    AsyncEventSourceMessage(const char * data, size_t len);
+    ~AsyncEventSourceMessage();
+    size_t ack(size_t len, uint32_t time __attribute__((unused)));
+    size_t send(AsyncClient *client);
+    bool finished(){ return _acked == _len; }
+    bool sent() { return _sent == _len; }
+};
+
+class AsyncEventSourceClient {
+  private:
+    AsyncClient *_client;
+    AsyncEventSource *_server;
+    uint32_t _lastId;
+    LinkedList<AsyncEventSourceMessage *> _messageQueue;
+    void _queueMessage(AsyncEventSourceMessage *dataMessage);
+    void _runQueue();
+
+  public:
+
+    AsyncEventSourceClient(AsyncWebServerRequest *request, AsyncEventSource *server);
+    ~AsyncEventSourceClient();
+
+    AsyncClient* client(){ return _client; }
+    void close();
+    void write(const char * message, size_t len);
+    void send(const char *message, const char *event=NULL, uint32_t id=0, uint32_t reconnect=0);
+    bool connected() const { return (_client != NULL) && _client->connected(); }
+    uint32_t lastId() const { return _lastId; }
+    size_t  packetsWaiting() const { return _messageQueue.length(); }
+
+    //system callbacks (do not call)
+    void _onAck(size_t len, uint32_t time);
+    void _onPoll(); 
+    void _onTimeout(uint32_t time);
+    void _onDisconnect();
+};
+
+class AsyncEventSource: public AsyncWebHandler {
+  private:
+    String _url;
+    LinkedList<AsyncEventSourceClient *> _clients;
+    ArEventHandlerFunction _connectcb;
+  public:
+    AsyncEventSource(const String& url);
+    ~AsyncEventSource();
+
+    const char * url() const { return _url.c_str(); }
+    void close();
+    void onConnect(ArEventHandlerFunction cb);
+    void send(const char *message, const char *event=NULL, uint32_t id=0, uint32_t reconnect=0);
+    size_t count() const; //number clinets connected
+    size_t  avgPacketsWaiting() const;
+
+    //system callbacks (do not call)
+    void _addClient(AsyncEventSourceClient * client);
+    void _handleDisconnect(AsyncEventSourceClient * client);
+    virtual bool canHandle(AsyncWebServerRequest *request) override final;
+    virtual void handleRequest(AsyncWebServerRequest *request) override final;
+};
+
+class AsyncEventSourceResponse: public AsyncWebServerResponse {
+  private:
+    String _content;
+    AsyncEventSource *_server;
+  public:
+    AsyncEventSourceResponse(AsyncEventSource *server);
+    void _respond(AsyncWebServerRequest *request);
+    size_t _ack(AsyncWebServerRequest *request, size_t len, uint32_t time);
+    bool _sourceValid() const { return true; }
+};
+
+
+#endif /* ASYNCEVENTSOURCE_H_ */

Lib_backup/AsyncJson.h

@@ -0,0 +1,254 @@
+// AsyncJson.h
+/*
+  Async Response to use with ArduinoJson and AsyncWebServer
+  Written by Andrew Melvin (SticilFace) with help from me-no-dev and BBlanchon.
+
+  Example of callback in use
+
+   server.on("/json", HTTP_ANY, [](AsyncWebServerRequest * request) {
+
+    AsyncJsonResponse * response = new AsyncJsonResponse();
+    JsonObject& root = response->getRoot();
+    root["key1"] = "key number one";
+    JsonObject& nested = root.createNestedObject("nested");
+    nested["key1"] = "key number one";
+
+    response->setLength();
+    request->send(response);
+  });
+
+  --------------------
+
+  Async Request to use with ArduinoJson and AsyncWebServer
+  Written by Arsène von Wyss (avonwyss)
+
+  Example
+
+  AsyncCallbackJsonWebHandler* handler = new AsyncCallbackJsonWebHandler("/rest/endpoint");
+  handler->onRequest([](AsyncWebServerRequest *request, JsonVariant &json) {
+    JsonObject& jsonObj = json.as<JsonObject>();
+    // ...
+  });
+  server.addHandler(handler);
+  
+*/
+#ifndef ASYNC_JSON_H_
+#define ASYNC_JSON_H_
+#include <ArduinoJson.h>
+#include <ESPAsyncWebServer.h>
+#include <Print.h>
+
+#if ARDUINOJSON_VERSION_MAJOR == 5
+  #define ARDUINOJSON_5_COMPATIBILITY
+#else
+  #ifndef DYNAMIC_JSON_DOCUMENT_SIZE
+    #define DYNAMIC_JSON_DOCUMENT_SIZE  1024
+  #endif
+#endif
+
+constexpr const char* JSON_MIMETYPE = "application/json";
+
+/*
+ * Json Response
+ * */
+
+class ChunkPrint : public Print {
+  private:
+    uint8_t* _destination;
+    size_t _to_skip;
+    size_t _to_write;
+    size_t _pos;
+  public:
+    ChunkPrint(uint8_t* destination, size_t from, size_t len)
+      : _destination(destination), _to_skip(from), _to_write(len), _pos{0} {}
+    virtual ~ChunkPrint(){}
+    size_t write(uint8_t c){
+      if (_to_skip > 0) {
+        _to_skip--;
+        return 1;
+      } else if (_to_write > 0) {
+        _to_write--;
+        _destination[_pos++] = c;
+        return 1;
+      }
+      return 0;
+    }
+    size_t write(const uint8_t *buffer, size_t size)
+    {
+      return this->Print::write(buffer, size);
+    }
+};
+
+class AsyncJsonResponse: public AsyncAbstractResponse {
+  protected:
+
+#ifdef ARDUINOJSON_5_COMPATIBILITY
+    DynamicJsonBuffer _jsonBuffer;
+#else
+    DynamicJsonDocument _jsonBuffer;
+#endif
+
+    JsonVariant _root;
+    bool _isValid;
+
+  public:    
+
+#ifdef ARDUINOJSON_5_COMPATIBILITY
+    AsyncJsonResponse(bool isArray=false): _isValid{false} {
+      _code = 200;
+      _contentType = JSON_MIMETYPE;
+      if(isArray)
+        _root = _jsonBuffer.createArray();
+      else
+        _root = _jsonBuffer.createObject();
+    }
+#else
+    AsyncJsonResponse(bool isArray=false, size_t maxJsonBufferSize = DYNAMIC_JSON_DOCUMENT_SIZE) : _jsonBuffer(maxJsonBufferSize), _isValid{false} {
+      _code = 200;
+      _contentType = JSON_MIMETYPE;
+      if(isArray)
+        _root = _jsonBuffer.createNestedArray();
+      else
+        _root = _jsonBuffer.createNestedObject();
+    }
+#endif
+
+    ~AsyncJsonResponse() {}
+    JsonVariant & getRoot() { return _root; }
+    bool _sourceValid() const { return _isValid; }
+    size_t setLength() {
+
+#ifdef ARDUINOJSON_5_COMPATIBILITY      
+      _contentLength = _root.measureLength();
+#else
+      _contentLength = measureJson(_root);
+#endif
+
+      if (_contentLength) { _isValid = true; }
+      return _contentLength;
+    }
+
+   size_t getSize() { return _jsonBuffer.size(); }
+
+    size_t _fillBuffer(uint8_t *data, size_t len){
+      ChunkPrint dest(data, _sentLength, len);
+
+#ifdef ARDUINOJSON_5_COMPATIBILITY      
+      _root.printTo( dest ) ;
+#else
+      serializeJson(_root, dest);
+#endif
+      return len;
+    }
+};
+
+class PrettyAsyncJsonResponse: public AsyncJsonResponse {	
+public:
+#ifdef ARDUINOJSON_5_COMPATIBILITY
+	PrettyAsyncJsonResponse (bool isArray=false) : AsyncJsonResponse{isArray} {}
+#else
+	PrettyAsyncJsonResponse (bool isArray=false, size_t maxJsonBufferSize = DYNAMIC_JSON_DOCUMENT_SIZE) : AsyncJsonResponse{isArray, maxJsonBufferSize} {}
+#endif
+	size_t setLength () {
+#ifdef ARDUINOJSON_5_COMPATIBILITY
+		_contentLength = _root.measurePrettyLength ();
+#else
+		_contentLength = measureJsonPretty(_root);
+#endif
+		if (_contentLength) {_isValid = true;}
+		return _contentLength;
+	}
+	size_t _fillBuffer (uint8_t *data, size_t len) {
+		ChunkPrint dest (data, _sentLength, len);
+#ifdef ARDUINOJSON_5_COMPATIBILITY
+		_root.prettyPrintTo (dest);
+#else
+		serializeJsonPretty(_root, dest);
+#endif
+		return len;
+	}
+};
+
+typedef std::function<void(AsyncWebServerRequest *request, JsonVariant &json)> ArJsonRequestHandlerFunction;
+
+class AsyncCallbackJsonWebHandler: public AsyncWebHandler {
+private:
+protected:
+  const String _uri;
+  WebRequestMethodComposite _method;
+  ArJsonRequestHandlerFunction _onRequest;
+  size_t _contentLength;
+#ifndef ARDUINOJSON_5_COMPATIBILITY   
+  const size_t maxJsonBufferSize;
+#endif
+  size_t _maxContentLength;
+public:
+#ifdef ARDUINOJSON_5_COMPATIBILITY      
+  AsyncCallbackJsonWebHandler(const String& uri, ArJsonRequestHandlerFunction onRequest) 
+  : _uri(uri), _method(HTTP_POST|HTTP_PUT|HTTP_PATCH), _onRequest(onRequest), _maxContentLength(16384) {}
+#else
+  AsyncCallbackJsonWebHandler(const String& uri, ArJsonRequestHandlerFunction onRequest, size_t maxJsonBufferSize=DYNAMIC_JSON_DOCUMENT_SIZE) 
+  : _uri(uri), _method(HTTP_POST|HTTP_PUT|HTTP_PATCH), _onRequest(onRequest), maxJsonBufferSize(maxJsonBufferSize), _maxContentLength(16384) {}
+#endif
+  
+  void setMethod(WebRequestMethodComposite method){ _method = method; }
+  void setMaxContentLength(int maxContentLength){ _maxContentLength = maxContentLength; }
+  void onRequest(ArJsonRequestHandlerFunction fn){ _onRequest = fn; }
+
+  virtual bool canHandle(AsyncWebServerRequest *request) override final{
+    if(!_onRequest)
+      return false;
+
+    if(!(_method & request->method()))
+      return false;
+
+    if(_uri.length() && (_uri != request->url() && !request->url().startsWith(_uri+"/")))
+      return false;
+
+    if ( !request->contentType().equalsIgnoreCase(JSON_MIMETYPE) )
+      return false;
+
+    request->addInterestingHeader("ANY");
+    return true;
+  }
+
+  virtual void handleRequest(AsyncWebServerRequest *request) override final {
+    if(_onRequest) {
+      if (request->_tempObject != NULL) {
+
+#ifdef ARDUINOJSON_5_COMPATIBILITY    
+        DynamicJsonBuffer jsonBuffer;
+        JsonVariant json = jsonBuffer.parse((uint8_t*)(request->_tempObject));
+        if (json.success()) {
+#else
+        DynamicJsonDocument jsonBuffer(this->maxJsonBufferSize);
+        DeserializationError error = deserializeJson(jsonBuffer, (uint8_t*)(request->_tempObject));
+        if(!error) {
+          JsonVariant json = jsonBuffer.as<JsonVariant>();
+#endif
+
+          _onRequest(request, json);
+          return;
+        }
+      }
+      request->send(_contentLength > _maxContentLength ? 413 : 400);
+    } else {
+      request->send(500);
+    }
+  }
+  virtual void handleUpload(AsyncWebServerRequest *request, const String& filename, size_t index, uint8_t *data, size_t len, bool final) override final {
+  }
+  virtual void handleBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) override final {
+    if (_onRequest) {
+      _contentLength = total;
+      if (total > 0 && request->_tempObject == NULL && total < _maxContentLength) {
+        request->_tempObject = malloc(total);
+      }
+      if (request->_tempObject != NULL) {
+        memcpy((uint8_t*)(request->_tempObject) + index, data, len);
+      }
+    }
+  }
+  virtual bool isRequestHandlerTrivial() override final {return _onRequest ? false : true;}
+};
+#endif

Lib_backup/AsyncTCP.h

@@ -0,0 +1,217 @@
+/*
+  Asynchronous TCP library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+  This file is part of the esp8266 core for Arduino environment.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef ASYNCTCP_H_
+#define ASYNCTCP_H_
+
+#include "IPAddress.h"
+#include "sdkconfig.h"
+#include <functional>
+extern "C" {
+    #include "freertos/semphr.h"
+    #include "lwip/pbuf.h"
+}
+
+//If core is not defined, then we are running in Arduino or PIO
+#ifndef CONFIG_ASYNC_TCP_RUNNING_CORE
+#define CONFIG_ASYNC_TCP_RUNNING_CORE -1 //any available core
+#define CONFIG_ASYNC_TCP_USE_WDT 1 //if enabled, adds between 33us and 200us per event
+#endif
+
+class AsyncClient;
+
+#define ASYNC_MAX_ACK_TIME 5000
+#define ASYNC_WRITE_FLAG_COPY 0x01 //will allocate new buffer to hold the data while sending (else will hold reference to the data given)
+#define ASYNC_WRITE_FLAG_MORE 0x02 //will not send PSH flag, meaning that there should be more data to be sent before the application should react.
+
+typedef std::function<void(void*, AsyncClient*)> AcConnectHandler;
+typedef std::function<void(void*, AsyncClient*, size_t len, uint32_t time)> AcAckHandler;
+typedef std::function<void(void*, AsyncClient*, int8_t error)> AcErrorHandler;
+typedef std::function<void(void*, AsyncClient*, void *data, size_t len)> AcDataHandler;
+typedef std::function<void(void*, AsyncClient*, struct pbuf *pb)> AcPacketHandler;
+typedef std::function<void(void*, AsyncClient*, uint32_t time)> AcTimeoutHandler;
+
+struct tcp_pcb;
+struct ip_addr;
+
+class AsyncClient {
+  public:
+    AsyncClient(tcp_pcb* pcb = 0);
+    ~AsyncClient();
+
+    AsyncClient & operator=(const AsyncClient &other);
+    AsyncClient & operator+=(const AsyncClient &other);
+
+    bool operator==(const AsyncClient &other);
+
+    bool operator!=(const AsyncClient &other) {
+      return !(*this == other);
+    }
+    bool connect(IPAddress ip, uint16_t port);
+    bool connect(const char* host, uint16_t port);
+    void close(bool now = false);
+    void stop();
+    int8_t abort();
+    bool free();
+
+    bool canSend();//ack is not pending
+    size_t space();//space available in the TCP window
+    size_t add(const char* data, size_t size, uint8_t apiflags=ASYNC_WRITE_FLAG_COPY);//add for sending
+    bool send();//send all data added with the method above
+
+    //write equals add()+send()
+    size_t write(const char* data);
+    size_t write(const char* data, size_t size, uint8_t apiflags=ASYNC_WRITE_FLAG_COPY); //only when canSend() == true
+
+    uint8_t state();
+    bool connecting();
+    bool connected();
+    bool disconnecting();
+    bool disconnected();
+    bool freeable();//disconnected or disconnecting
+
+    uint16_t getMss();
+
+    uint32_t getRxTimeout();
+    void setRxTimeout(uint32_t timeout);//no RX data timeout for the connection in seconds
+
+    uint32_t getAckTimeout();
+    void setAckTimeout(uint32_t timeout);//no ACK timeout for the last sent packet in milliseconds
+
+    void setNoDelay(bool nodelay);
+    bool getNoDelay();
+
+    uint32_t getRemoteAddress();
+    uint16_t getRemotePort();
+    uint32_t getLocalAddress();
+    uint16_t getLocalPort();
+
+    //compatibility
+    IPAddress remoteIP();
+    uint16_t  remotePort();
+    IPAddress localIP();
+    uint16_t  localPort();
+
+    void onConnect(AcConnectHandler cb, void* arg = 0);     //on successful connect
+    void onDisconnect(AcConnectHandler cb, void* arg = 0);  //disconnected
+    void onAck(AcAckHandler cb, void* arg = 0);             //ack received
+    void onError(AcErrorHandler cb, void* arg = 0);         //unsuccessful connect or error
+    void onData(AcDataHandler cb, void* arg = 0);           //data received (called if onPacket is not used)
+    void onPacket(AcPacketHandler cb, void* arg = 0);       //data received
+    void onTimeout(AcTimeoutHandler cb, void* arg = 0);     //ack timeout
+    void onPoll(AcConnectHandler cb, void* arg = 0);        //every 125ms when connected
+
+    void ackPacket(struct pbuf * pb);//ack pbuf from onPacket
+    size_t ack(size_t len); //ack data that you have not acked using the method below
+    void ackLater(){ _ack_pcb = false; } //will not ack the current packet. Call from onData
+
+    const char * errorToString(int8_t error);
+    const char * stateToString();
+
+    //Do not use any of the functions below!
+    static int8_t _s_poll(void *arg, struct tcp_pcb *tpcb);
+    static int8_t _s_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *pb, int8_t err);
+    static int8_t _s_fin(void *arg, struct tcp_pcb *tpcb, int8_t err);
+    static int8_t _s_lwip_fin(void *arg, struct tcp_pcb *tpcb, int8_t err);
+    static void _s_error(void *arg, int8_t err);
+    static int8_t _s_sent(void *arg, struct tcp_pcb *tpcb, uint16_t len);
+    static int8_t _s_connected(void* arg, void* tpcb, int8_t err);
+    static void _s_dns_found(const char *name, struct ip_addr *ipaddr, void *arg);
+
+    int8_t _recv(tcp_pcb* pcb, pbuf* pb, int8_t err);
+    tcp_pcb * pcb(){ return _pcb; }
+
+  protected:
+    tcp_pcb* _pcb;
+    int8_t  _closed_slot;
+
+    AcConnectHandler _connect_cb;
+    void* _connect_cb_arg;
+    AcConnectHandler _discard_cb;
+    void* _discard_cb_arg;
+    AcAckHandler _sent_cb;
+    void* _sent_cb_arg;
+    AcErrorHandler _error_cb;
+    void* _error_cb_arg;
+    AcDataHandler _recv_cb;
+    void* _recv_cb_arg;
+    AcPacketHandler _pb_cb;
+    void* _pb_cb_arg;
+    AcTimeoutHandler _timeout_cb;
+    void* _timeout_cb_arg;
+    AcConnectHandler _poll_cb;
+    void* _poll_cb_arg;
+
+    bool _pcb_busy;
+    uint32_t _pcb_sent_at;
+    bool _ack_pcb;
+    uint32_t _rx_ack_len;
+    uint32_t _rx_last_packet;
+    uint32_t _rx_since_timeout;
+    uint32_t _ack_timeout;
+    uint16_t _connect_port;
+
+    int8_t _close();
+    void _free_closed_slot();
+    void _allocate_closed_slot();
+    int8_t _connected(void* pcb, int8_t err);
+    void _error(int8_t err);
+    int8_t _poll(tcp_pcb* pcb);
+    int8_t _sent(tcp_pcb* pcb, uint16_t len);
+    int8_t _fin(tcp_pcb* pcb, int8_t err);
+    int8_t _lwip_fin(tcp_pcb* pcb, int8_t err);
+    void _dns_found(struct ip_addr *ipaddr);
+
+  public:
+    AsyncClient* prev;
+    AsyncClient* next;
+};
+
+class AsyncServer {
+  public:
+    AsyncServer(IPAddress addr, uint16_t port);
+    AsyncServer(uint16_t port);
+    ~AsyncServer();
+    void onClient(AcConnectHandler cb, void* arg);
+    void begin();
+    void end();
+    void setNoDelay(bool nodelay);
+    bool getNoDelay();
+    uint8_t status();
+
+    //Do not use any of the functions below!
+    static int8_t _s_accept(void *arg, tcp_pcb* newpcb, int8_t err);
+    static int8_t _s_accepted(void *arg, AsyncClient* client);
+
+  protected:
+    uint16_t _port;
+    IPAddress _addr;
+    bool _noDelay;
+    tcp_pcb* _pcb;
+    AcConnectHandler _connect_cb;
+    void* _connect_cb_arg;
+
+    int8_t _accept(tcp_pcb* newpcb, int8_t err);
+    int8_t _accepted(AsyncClient* client);
+};
+
+
+#endif /* ASYNCTCP_H_ */

Lib_backup/AsyncWebSocket.h

@@ -0,0 +1,350 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+  This file is part of the esp8266 core for Arduino environment.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#ifndef ASYNCWEBSOCKET_H_
+#define ASYNCWEBSOCKET_H_
+
+#include <Arduino.h>
+#ifdef ESP32
+#include <AsyncTCP.h>
+#define WS_MAX_QUEUED_MESSAGES 32
+#else
+#include <ESPAsyncTCP.h>
+#define WS_MAX_QUEUED_MESSAGES 8
+#endif
+#include <ESPAsyncWebServer.h>
+
+#include "AsyncWebSynchronization.h"
+
+#ifdef ESP8266
+#include <Hash.h>
+#ifdef CRYPTO_HASH_h // include Hash.h from espressif framework if the first include was from the crypto library
+#include <../src/Hash.h>
+#endif
+#endif
+
+#ifdef ESP32
+#define DEFAULT_MAX_WS_CLIENTS 8
+#else
+#define DEFAULT_MAX_WS_CLIENTS 4
+#endif
+
+class AsyncWebSocket;
+class AsyncWebSocketResponse;
+class AsyncWebSocketClient;
+class AsyncWebSocketControl;
+
+typedef struct {
+    /** Message type as defined by enum AwsFrameType.
+     * Note: Applications will only see WS_TEXT and WS_BINARY.
+     * All other types are handled by the library. */
+    uint8_t message_opcode;
+    /** Frame number of a fragmented message. */
+    uint32_t num;
+    /** Is this the last frame in a fragmented message ?*/
+    uint8_t final;
+    /** Is this frame masked? */
+    uint8_t masked;
+    /** Message type as defined by enum AwsFrameType.
+     * This value is the same as message_opcode for non-fragmented
+     * messages, but may also be WS_CONTINUATION in a fragmented message. */
+    uint8_t opcode;
+    /** Length of the current frame.
+     * This equals the total length of the message if num == 0 && final == true */
+    uint64_t len;
+    /** Mask key */
+    uint8_t mask[4];
+    /** Offset of the data inside the current frame. */
+    uint64_t index;
+} AwsFrameInfo;
+
+typedef enum { WS_DISCONNECTED, WS_CONNECTED, WS_DISCONNECTING } AwsClientStatus;
+typedef enum { WS_CONTINUATION, WS_TEXT, WS_BINARY, WS_DISCONNECT = 0x08, WS_PING, WS_PONG } AwsFrameType;
+typedef enum { WS_MSG_SENDING, WS_MSG_SENT, WS_MSG_ERROR } AwsMessageStatus;
+typedef enum { WS_EVT_CONNECT, WS_EVT_DISCONNECT, WS_EVT_PONG, WS_EVT_ERROR, WS_EVT_DATA } AwsEventType;
+
+class AsyncWebSocketMessageBuffer {
+  private:
+    uint8_t * _data;
+    size_t _len;
+    bool _lock; 
+    uint32_t _count;  
+
+  public:
+    AsyncWebSocketMessageBuffer();
+    AsyncWebSocketMessageBuffer(size_t size);
+    AsyncWebSocketMessageBuffer(uint8_t * data, size_t size); 
+    AsyncWebSocketMessageBuffer(const AsyncWebSocketMessageBuffer &); 
+    AsyncWebSocketMessageBuffer(AsyncWebSocketMessageBuffer &&); 
+    ~AsyncWebSocketMessageBuffer(); 
+    void operator ++(int i) { (void)i; _count++; }
+    void operator --(int i) { (void)i; if (_count > 0) { _count--; } ;  }
+    bool reserve(size_t size);
+    void lock() { _lock = true; }
+    void unlock() { _lock = false; }
+    uint8_t * get() { return _data; }
+    size_t length() { return _len; }
+    uint32_t count() { return _count; }
+    bool canDelete() { return (!_count && !_lock); } 
+
+    friend AsyncWebSocket; 
+
+};
+
+class AsyncWebSocketMessage {
+  protected:
+    uint8_t _opcode;
+    bool _mask;
+    AwsMessageStatus _status;
+  public:
+    AsyncWebSocketMessage():_opcode(WS_TEXT),_mask(false),_status(WS_MSG_ERROR){}
+    virtual ~AsyncWebSocketMessage(){}
+    virtual void ack(size_t len __attribute__((unused)), uint32_t time __attribute__((unused))){}
+    virtual size_t send(AsyncClient *client __attribute__((unused))){ return 0; }
+    virtual bool finished(){ return _status != WS_MSG_SENDING; }
+    virtual bool betweenFrames() const { return false; }
+};
+
+class AsyncWebSocketBasicMessage: public AsyncWebSocketMessage {
+  private:
+    size_t _len;
+    size_t _sent;
+    size_t _ack;
+    size_t _acked;
+    uint8_t * _data;
+public:
+    AsyncWebSocketBasicMessage(const char * data, size_t len, uint8_t opcode=WS_TEXT, bool mask=false);
+    AsyncWebSocketBasicMessage(uint8_t opcode=WS_TEXT, bool mask=false);
+    virtual ~AsyncWebSocketBasicMessage() override;
+    virtual bool betweenFrames() const override { return _acked == _ack; }
+    virtual void ack(size_t len, uint32_t time) override ;
+    virtual size_t send(AsyncClient *client) override ;
+};
+
+class AsyncWebSocketMultiMessage: public AsyncWebSocketMessage {
+  private:
+    uint8_t * _data;
+    size_t _len;
+    size_t _sent;
+    size_t _ack;
+    size_t _acked;
+    AsyncWebSocketMessageBuffer * _WSbuffer; 
+public:
+    AsyncWebSocketMultiMessage(AsyncWebSocketMessageBuffer * buffer, uint8_t opcode=WS_TEXT, bool mask=false); 
+    virtual ~AsyncWebSocketMultiMessage() override;
+    virtual bool betweenFrames() const override { return _acked == _ack; }
+    virtual void ack(size_t len, uint32_t time) override ;
+    virtual size_t send(AsyncClient *client) override ;
+};
+
+class AsyncWebSocketClient {
+  private:
+    AsyncClient *_client;
+    AsyncWebSocket *_server;
+    uint32_t _clientId;
+    AwsClientStatus _status;
+
+    LinkedList<AsyncWebSocketControl *> _controlQueue;
+    LinkedList<AsyncWebSocketMessage *> _messageQueue;
+
+    uint8_t _pstate;
+    AwsFrameInfo _pinfo;
+
+    uint32_t _lastMessageTime;
+    uint32_t _keepAlivePeriod;
+
+    void _queueMessage(AsyncWebSocketMessage *dataMessage);
+    void _queueControl(AsyncWebSocketControl *controlMessage);
+    void _runQueue();
+
+  public:
+    void *_tempObject;
+
+    AsyncWebSocketClient(AsyncWebServerRequest *request, AsyncWebSocket *server);
+    ~AsyncWebSocketClient();
+
+    //client id increments for the given server
+    uint32_t id(){ return _clientId; }
+    AwsClientStatus status(){ return _status; }
+    AsyncClient* client(){ return _client; }
+    AsyncWebSocket *server(){ return _server; }
+    AwsFrameInfo const &pinfo() const { return _pinfo; }
+
+    IPAddress remoteIP();
+    uint16_t  remotePort();
+
+    //control frames
+    void close(uint16_t code=0, const char * message=NULL);
+    void ping(uint8_t *data=NULL, size_t len=0);
+
+    //set auto-ping period in seconds. disabled if zero (default)
+    void keepAlivePeriod(uint16_t seconds){
+      _keepAlivePeriod = seconds * 1000;
+    }
+    uint16_t keepAlivePeriod(){
+      return (uint16_t)(_keepAlivePeriod / 1000);
+    }
+
+    //data packets
+    void message(AsyncWebSocketMessage *message){ _queueMessage(message); }
+    bool queueIsFull();
+
+    size_t printf(const char *format, ...)  __attribute__ ((format (printf, 2, 3)));
+#ifndef ESP32
+    size_t printf_P(PGM_P formatP, ...)  __attribute__ ((format (printf, 2, 3)));
+#endif
+    void text(const char * message, size_t len);
+    void text(const char * message);
+    void text(uint8_t * message, size_t len);
+    void text(char * message);
+    void text(const String &message);
+    void text(const __FlashStringHelper *data);
+    void text(AsyncWebSocketMessageBuffer *buffer); 
+
+    void binary(const char * message, size_t len);
+    void binary(const char * message);
+    void binary(uint8_t * message, size_t len);
+    void binary(char * message);
+    void binary(const String &message);
+    void binary(const __FlashStringHelper *data, size_t len);
+    void binary(AsyncWebSocketMessageBuffer *buffer); 
+
+    bool canSend() { return _messageQueue.length() < WS_MAX_QUEUED_MESSAGES; }
+
+    //system callbacks (do not call)
+    void _onAck(size_t len, uint32_t time);
+    void _onError(int8_t);
+    void _onPoll();
+    void _onTimeout(uint32_t time);
+    void _onDisconnect();
+    void _onData(void *pbuf, size_t plen);
+};
+
+typedef std::function<void(AsyncWebSocket * server, AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len)> AwsEventHandler;
+
+//WebServer Handler implementation that plays the role of a socket server
+class AsyncWebSocket: public AsyncWebHandler {
+  public:
+    typedef LinkedList<AsyncWebSocketClient *> AsyncWebSocketClientLinkedList;
+  private:
+    String _url;
+    AsyncWebSocketClientLinkedList _clients;
+    uint32_t _cNextId;
+    AwsEventHandler _eventHandler;
+    bool _enabled;
+    AsyncWebLock _lock;
+
+  public:
+    AsyncWebSocket(const String& url);
+    ~AsyncWebSocket();
+    const char * url() const { return _url.c_str(); }
+    void enable(bool e){ _enabled = e; }
+    bool enabled() const { return _enabled; }
+    bool availableForWriteAll();
+    bool availableForWrite(uint32_t id);
+
+    size_t count() const;
+    AsyncWebSocketClient * client(uint32_t id);
+    bool hasClient(uint32_t id){ return client(id) != NULL; }
+
+    void close(uint32_t id, uint16_t code=0, const char * message=NULL);
+    void closeAll(uint16_t code=0, const char * message=NULL);
+    void cleanupClients(uint16_t maxClients = DEFAULT_MAX_WS_CLIENTS);
+
+    void ping(uint32_t id, uint8_t *data=NULL, size_t len=0);
+    void pingAll(uint8_t *data=NULL, size_t len=0); //  done
+
+    void text(uint32_t id, const char * message, size_t len);
+    void text(uint32_t id, const char * message);
+    void text(uint32_t id, uint8_t * message, size_t len);
+    void text(uint32_t id, char * message);
+    void text(uint32_t id, const String &message);
+    void text(uint32_t id, const __FlashStringHelper *message);
+
+    void textAll(const char * message, size_t len);
+    void textAll(const char * message);
+    void textAll(uint8_t * message, size_t len);
+    void textAll(char * message);
+    void textAll(const String &message);
+    void textAll(const __FlashStringHelper *message); //  need to convert
+    void textAll(AsyncWebSocketMessageBuffer * buffer); 
+
+    void binary(uint32_t id, const char * message, size_t len);
+    void binary(uint32_t id, const char * message);
+    void binary(uint32_t id, uint8_t * message, size_t len);
+    void binary(uint32_t id, char * message);
+    void binary(uint32_t id, const String &message);
+    void binary(uint32_t id, const __FlashStringHelper *message, size_t len);
+
+    void binaryAll(const char * message, size_t len);
+    void binaryAll(const char * message);
+    void binaryAll(uint8_t * message, size_t len);
+    void binaryAll(char * message);
+    void binaryAll(const String &message);
+    void binaryAll(const __FlashStringHelper *message, size_t len);
+    void binaryAll(AsyncWebSocketMessageBuffer * buffer); 
+
+    void message(uint32_t id, AsyncWebSocketMessage *message);
+    void messageAll(AsyncWebSocketMultiMessage *message);
+
+    size_t printf(uint32_t id, const char *format, ...)  __attribute__ ((format (printf, 3, 4)));
+    size_t printfAll(const char *format, ...)  __attribute__ ((format (printf, 2, 3)));
+#ifndef ESP32
+    size_t printf_P(uint32_t id, PGM_P formatP, ...)  __attribute__ ((format (printf, 3, 4)));
+#endif
+    size_t printfAll_P(PGM_P formatP, ...)  __attribute__ ((format (printf, 2, 3)));
+
+    //event listener
+    void onEvent(AwsEventHandler handler){
+      _eventHandler = handler;
+    }
+
+    //system callbacks (do not call)
+    uint32_t _getNextId(){ return _cNextId++; }
+    void _addClient(AsyncWebSocketClient * client);
+    void _handleDisconnect(AsyncWebSocketClient * client);
+    void _handleEvent(AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len);
+    virtual bool canHandle(AsyncWebServerRequest *request) override final;
+    virtual void handleRequest(AsyncWebServerRequest *request) override final;
+
+
+    //  messagebuffer functions/objects. 
+    AsyncWebSocketMessageBuffer * makeBuffer(size_t size = 0); 
+    AsyncWebSocketMessageBuffer * makeBuffer(uint8_t * data, size_t size); 
+    LinkedList<AsyncWebSocketMessageBuffer *> _buffers;
+    void _cleanBuffers(); 
+
+    AsyncWebSocketClientLinkedList getClients() const;
+};
+
+//WebServer response to authenticate the socket and detach the tcp client from the web server request
+class AsyncWebSocketResponse: public AsyncWebServerResponse {
+  private:
+    String _content;
+    AsyncWebSocket *_server;
+  public:
+    AsyncWebSocketResponse(const String& key, AsyncWebSocket *server);
+    void _respond(AsyncWebServerRequest *request);
+    size_t _ack(AsyncWebServerRequest *request, size_t len, uint32_t time);
+    bool _sourceValid() const { return true; }
+};
+
+
+#endif /* ASYNCWEBSOCKET_H_ */

Lib_backup/AsyncWebSynchronization.h

@@ -0,0 +1,87 @@
+#ifndef ASYNCWEBSYNCHRONIZATION_H_
+#define ASYNCWEBSYNCHRONIZATION_H_
+
+// Synchronisation is only available on ESP32, as the ESP8266 isn't using FreeRTOS by default
+
+#include <ESPAsyncWebServer.h>
+
+#ifdef ESP32
+
+// This is the ESP32 version of the Sync Lock, using the FreeRTOS Semaphore
+class AsyncWebLock
+{
+private:
+  SemaphoreHandle_t _lock;
+  mutable void *_lockedBy;
+
+public:
+  AsyncWebLock() {
+    _lock = xSemaphoreCreateBinary();
+    _lockedBy = NULL;
+    xSemaphoreGive(_lock);
+  }
+
+  ~AsyncWebLock() {
+    vSemaphoreDelete(_lock);
+  }
+
+  bool lock() const {
+    extern void *pxCurrentTCB;
+    if (_lockedBy != pxCurrentTCB) {
+      xSemaphoreTake(_lock, portMAX_DELAY);
+      _lockedBy = pxCurrentTCB;
+      return true;
+    }
+    return false;
+  }
+
+  void unlock() const {
+    _lockedBy = NULL;
+    xSemaphoreGive(_lock);
+  }
+};
+
+#else
+
+// This is the 8266 version of the Sync Lock which is currently unimplemented
+class AsyncWebLock
+{
+
+public:
+  AsyncWebLock() {
+  }
+
+  ~AsyncWebLock() {
+  }
+
+  bool lock() const {
+    return false;
+  }
+
+  void unlock() const {
+  }
+};
+#endif
+
+class AsyncWebLockGuard
+{
+private:
+  const AsyncWebLock *_lock;
+
+public:
+  AsyncWebLockGuard(const AsyncWebLock &l) {
+    if (l.lock()) {
+      _lock = &l;
+    } else {
+      _lock = NULL;
+    }
+  }
+
+  ~AsyncWebLockGuard() {
+    if (_lock) {
+      _lock->unlock();
+    }
+  }
+};
+
+#endif // ASYNCWEBSYNCHRONIZATION_H_

Lib_backup/ESPAsyncWebServer.h

@@ -0,0 +1,471 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+  This file is part of the esp8266 core for Arduino environment.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#ifndef _ESPAsyncWebServer_H_
+#define _ESPAsyncWebServer_H_
+
+#include "Arduino.h"
+
+#include <functional>
+#include "FS.h"
+
+#include "StringArray.h"
+
+#ifdef ESP32
+#include <WiFi.h>
+#include <AsyncTCP.h>
+#elif defined(ESP8266)
+#include <ESP8266WiFi.h>
+#include <ESPAsyncTCP.h>
+#else
+#error Platform not supported
+#endif
+
+#ifdef ASYNCWEBSERVER_REGEX
+#define ASYNCWEBSERVER_REGEX_ATTRIBUTE
+#else
+#define ASYNCWEBSERVER_REGEX_ATTRIBUTE __attribute__((warning("ASYNCWEBSERVER_REGEX not defined")))
+#endif
+
+#define DEBUGF(...) //Serial.printf(__VA_ARGS__)
+
+class AsyncWebServer;
+class AsyncWebServerRequest;
+class AsyncWebServerResponse;
+class AsyncWebHeader;
+class AsyncWebParameter;
+class AsyncWebRewrite;
+class AsyncWebHandler;
+class AsyncStaticWebHandler;
+class AsyncCallbackWebHandler;
+class AsyncResponseStream;
+
+#ifndef WEBSERVER_H
+typedef enum {
+  HTTP_GET     = 0b00000001,
+  HTTP_POST    = 0b00000010,
+  HTTP_DELETE  = 0b00000100,
+  HTTP_PUT     = 0b00001000,
+  HTTP_PATCH   = 0b00010000,
+  HTTP_HEAD    = 0b00100000,
+  HTTP_OPTIONS = 0b01000000,
+  HTTP_ANY     = 0b01111111,
+} WebRequestMethod;
+#endif
+
+//if this value is returned when asked for data, packet will not be sent and you will be asked for data again
+#define RESPONSE_TRY_AGAIN 0xFFFFFFFF
+
+typedef uint8_t WebRequestMethodComposite;
+typedef std::function<void(void)> ArDisconnectHandler;
+
+/*
+ * PARAMETER :: Chainable object to hold GET/POST and FILE parameters
+ * */
+
+class AsyncWebParameter {
+  private:
+    String _name;
+    String _value;
+    size_t _size;
+    bool _isForm;
+    bool _isFile;
+
+  public:
+
+    AsyncWebParameter(const String& name, const String& value, bool form=false, bool file=false, size_t size=0): _name(name), _value(value), _size(size), _isForm(form), _isFile(file){}
+    const String& name() const { return _name; }
+    const String& value() const { return _value; }
+    size_t size() const { return _size; }
+    bool isPost() const { return _isForm; }
+    bool isFile() const { return _isFile; }
+};
+
+/*
+ * HEADER :: Chainable object to hold the headers
+ * */
+
+class AsyncWebHeader {
+  private:
+    String _name;
+    String _value;
+
+  public:
+    AsyncWebHeader(const String& name, const String& value): _name(name), _value(value){}
+    AsyncWebHeader(const String& data): _name(), _value(){
+      if(!data) return;
+      int index = data.indexOf(':');
+      if (index < 0) return;
+      _name = data.substring(0, index);
+      _value = data.substring(index + 2);
+    }
+    ~AsyncWebHeader(){}
+    const String& name() const { return _name; }
+    const String& value() const { return _value; }
+    String toString() const { return String(_name+": "+_value+"\r\n"); }
+};
+
+/*
+ * REQUEST :: Each incoming Client is wrapped inside a Request and both live together until disconnect
+ * */
+
+typedef enum { RCT_NOT_USED = -1, RCT_DEFAULT = 0, RCT_HTTP, RCT_WS, RCT_EVENT, RCT_MAX } RequestedConnectionType;
+
+typedef std::function<size_t(uint8_t*, size_t, size_t)> AwsResponseFiller;
+typedef std::function<String(const String&)> AwsTemplateProcessor;
+
+class AsyncWebServerRequest {
+  using File = fs::File;
+  using FS = fs::FS;
+  friend class AsyncWebServer;
+  friend class AsyncCallbackWebHandler;
+  private:
+    AsyncClient* _client;
+    AsyncWebServer* _server;
+    AsyncWebHandler* _handler;
+    AsyncWebServerResponse* _response;
+    StringArray _interestingHeaders;
+    ArDisconnectHandler _onDisconnectfn;
+
+    String _temp;
+    uint8_t _parseState;
+
+    uint8_t _version;
+    WebRequestMethodComposite _method;
+    String _url;
+    String _host;
+    String _contentType;
+    String _boundary;
+    String _authorization;
+    RequestedConnectionType _reqconntype;
+    void _removeNotInterestingHeaders();
+    bool _isDigest;
+    bool _isMultipart;
+    bool _isPlainPost;
+    bool _expectingContinue;
+    size_t _contentLength;
+    size_t _parsedLength;
+
+    LinkedList<AsyncWebHeader *> _headers;
+    LinkedList<AsyncWebParameter *> _params;
+    LinkedList<String *> _pathParams;
+
+    uint8_t _multiParseState;
+    uint8_t _boundaryPosition;
+    size_t _itemStartIndex;
+    size_t _itemSize;
+    String _itemName;
+    String _itemFilename;
+    String _itemType;
+    String _itemValue;
+    uint8_t *_itemBuffer;
+    size_t _itemBufferIndex;
+    bool _itemIsFile;
+
+    void _onPoll();
+    void _onAck(size_t len, uint32_t time);
+    void _onError(int8_t error);
+    void _onTimeout(uint32_t time);
+    void _onDisconnect();
+    void _onData(void *buf, size_t len);
+
+    void _addParam(AsyncWebParameter*);
+    void _addPathParam(const char *param);
+
+    bool _parseReqHead();
+    bool _parseReqHeader();
+    void _parseLine();
+    void _parsePlainPostChar(uint8_t data);
+    void _parseMultipartPostByte(uint8_t data, bool last);
+    void _addGetParams(const String& params);
+
+    void _handleUploadStart();
+    void _handleUploadByte(uint8_t data, bool last);
+    void _handleUploadEnd();
+
+  public:
+    File _tempFile;
+    void *_tempObject;
+
+    AsyncWebServerRequest(AsyncWebServer*, AsyncClient*);
+    ~AsyncWebServerRequest();
+
+    AsyncClient* client(){ return _client; }
+    uint8_t version() const { return _version; }
+    WebRequestMethodComposite method() const { return _method; }
+    const String& url() const { return _url; }
+    const String& host() const { return _host; }
+    const String& contentType() const { return _contentType; }
+    size_t contentLength() const { return _contentLength; }
+    bool multipart() const { return _isMultipart; }
+    const char * methodToString() const;
+    const char * requestedConnTypeToString() const;
+    RequestedConnectionType requestedConnType() const { return _reqconntype; }
+    bool isExpectedRequestedConnType(RequestedConnectionType erct1, RequestedConnectionType erct2 = RCT_NOT_USED, RequestedConnectionType erct3 = RCT_NOT_USED);
+    void onDisconnect (ArDisconnectHandler fn);
+
+    //hash is the string representation of:
+    // base64(user:pass) for basic or
+    // user:realm:md5(user:realm:pass) for digest
+    bool authenticate(const char * hash);
+    bool authenticate(const char * username, const char * password, const char * realm = NULL, bool passwordIsHash = false);
+    void requestAuthentication(const char * realm = NULL, bool isDigest = true);
+
+    void setHandler(AsyncWebHandler *handler){ _handler = handler; }
+    void addInterestingHeader(const String& name);
+
+    void redirect(const String& url);
+
+    void send(AsyncWebServerResponse *response);
+    void send(int code, const String& contentType=String(), const String& content=String());
+    void send(FS &fs, const String& path, const String& contentType=String(), bool download=false, AwsTemplateProcessor callback=nullptr);
+    void send(File content, const String& path, const String& contentType=String(), bool download=false, AwsTemplateProcessor callback=nullptr);
+    void send(Stream &stream, const String& contentType, size_t len, AwsTemplateProcessor callback=nullptr);
+    void send(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback=nullptr);
+    void sendChunked(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback=nullptr);
+    void send_P(int code, const String& contentType, const uint8_t * content, size_t len, AwsTemplateProcessor callback=nullptr);
+    void send_P(int code, const String& contentType, PGM_P content, AwsTemplateProcessor callback=nullptr);
+
+    AsyncWebServerResponse *beginResponse(int code, const String& contentType=String(), const String& content=String());
+    AsyncWebServerResponse *beginResponse(FS &fs, const String& path, const String& contentType=String(), bool download=false, AwsTemplateProcessor callback=nullptr);
+    AsyncWebServerResponse *beginResponse(File content, const String& path, const String& contentType=String(), bool download=false, AwsTemplateProcessor callback=nullptr);
+    AsyncWebServerResponse *beginResponse(Stream &stream, const String& contentType, size_t len, AwsTemplateProcessor callback=nullptr);
+    AsyncWebServerResponse *beginResponse(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback=nullptr);
+    AsyncWebServerResponse *beginChunkedResponse(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback=nullptr);
+    AsyncResponseStream *beginResponseStream(const String& contentType, size_t bufferSize=1460);
+    AsyncWebServerResponse *beginResponse_P(int code, const String& contentType, const uint8_t * content, size_t len, AwsTemplateProcessor callback=nullptr);
+    AsyncWebServerResponse *beginResponse_P(int code, const String& contentType, PGM_P content, AwsTemplateProcessor callback=nullptr);
+
+    size_t headers() const;                     // get header count
+    bool hasHeader(const String& name) const;   // check if header exists
+    bool hasHeader(const __FlashStringHelper * data) const;   // check if header exists
+
+    AsyncWebHeader* getHeader(const String& name) const;
+    AsyncWebHeader* getHeader(const __FlashStringHelper * data) const;
+    AsyncWebHeader* getHeader(size_t num) const;
+
+    size_t params() const;                      // get arguments count
+    bool hasParam(const String& name, bool post=false, bool file=false) const;
+    bool hasParam(const __FlashStringHelper * data, bool post=false, bool file=false) const;
+
+    AsyncWebParameter* getParam(const String& name, bool post=false, bool file=false) const;
+    AsyncWebParameter* getParam(const __FlashStringHelper * data, bool post, bool file) const; 
+    AsyncWebParameter* getParam(size_t num) const;
+
+    size_t args() const { return params(); }     // get arguments count
+    const String& arg(const String& name) const; // get request argument value by name
+    const String& arg(const __FlashStringHelper * data) const; // get request argument value by F(name)    
+    const String& arg(size_t i) const;           // get request argument value by number
+    const String& argName(size_t i) const;       // get request argument name by number
+    bool hasArg(const char* name) const;         // check if argument exists
+    bool hasArg(const __FlashStringHelper * data) const;         // check if F(argument) exists
+
+    const String& ASYNCWEBSERVER_REGEX_ATTRIBUTE pathArg(size_t i) const;
+
+    const String& header(const char* name) const;// get request header value by name
+    const String& header(const __FlashStringHelper * data) const;// get request header value by F(name)    
+    const String& header(size_t i) const;        // get request header value by number
+    const String& headerName(size_t i) const;    // get request header name by number
+    String urlDecode(const String& text) const;
+};
+
+/*
+ * FILTER :: Callback to filter AsyncWebRewrite and AsyncWebHandler (done by the Server)
+ * */
+
+typedef std::function<bool(AsyncWebServerRequest *request)> ArRequestFilterFunction;
+
+bool ON_STA_FILTER(AsyncWebServerRequest *request);
+
+bool ON_AP_FILTER(AsyncWebServerRequest *request);
+
+/*
+ * REWRITE :: One instance can be handle any Request (done by the Server)
+ * */
+
+class AsyncWebRewrite {
+  protected:
+    String _from;
+    String _toUrl;
+    String _params;
+    ArRequestFilterFunction _filter;
+  public:
+    AsyncWebRewrite(const char* from, const char* to): _from(from), _toUrl(to), _params(String()), _filter(NULL){
+      int index = _toUrl.indexOf('?');
+      if (index > 0) {
+        _params = _toUrl.substring(index +1);
+        _toUrl = _toUrl.substring(0, index);
+      }
+    }
+    virtual ~AsyncWebRewrite(){}
+    AsyncWebRewrite& setFilter(ArRequestFilterFunction fn) { _filter = fn; return *this; }
+    bool filter(AsyncWebServerRequest *request) const { return _filter == NULL || _filter(request); }
+    const String& from(void) const { return _from; }
+    const String& toUrl(void) const { return _toUrl; }
+    const String& params(void) const { return _params; }
+    virtual bool match(AsyncWebServerRequest *request) { return from() == request->url() && filter(request); }
+};
+
+/*
+ * HANDLER :: One instance can be attached to any Request (done by the Server)
+ * */
+
+class AsyncWebHandler {
+  protected:
+    ArRequestFilterFunction _filter;
+    String _username;
+    String _password;
+  public:
+    AsyncWebHandler():_username(""), _password(""){}
+    AsyncWebHandler& setFilter(ArRequestFilterFunction fn) { _filter = fn; return *this; }
+    AsyncWebHandler& setAuthentication(const char *username, const char *password){  _username = String(username);_password = String(password); return *this; };
+    bool filter(AsyncWebServerRequest *request){ return _filter == NULL || _filter(request); }
+    virtual ~AsyncWebHandler(){}
+    virtual bool canHandle(AsyncWebServerRequest *request __attribute__((unused))){
+      return false;
+    }
+    virtual void handleRequest(AsyncWebServerRequest *request __attribute__((unused))){}
+    virtual void handleUpload(AsyncWebServerRequest *request  __attribute__((unused)), const String& filename __attribute__((unused)), size_t index __attribute__((unused)), uint8_t *data __attribute__((unused)), size_t len __attribute__((unused)), bool final  __attribute__((unused))){}
+    virtual void handleBody(AsyncWebServerRequest *request __attribute__((unused)), uint8_t *data __attribute__((unused)), size_t len __attribute__((unused)), size_t index __attribute__((unused)), size_t total __attribute__((unused))){}
+    virtual bool isRequestHandlerTrivial(){return true;}
+};
+
+/*
+ * RESPONSE :: One instance is created for each Request (attached by the Handler)
+ * */
+
+typedef enum {
+  RESPONSE_SETUP, RESPONSE_HEADERS, RESPONSE_CONTENT, RESPONSE_WAIT_ACK, RESPONSE_END, RESPONSE_FAILED
+} WebResponseState;
+
+class AsyncWebServerResponse {
+  protected:
+    int _code;
+    LinkedList<AsyncWebHeader *> _headers;
+    String _contentType;
+    size_t _contentLength;
+    bool _sendContentLength;
+    bool _chunked;
+    size_t _headLength;
+    size_t _sentLength;
+    size_t _ackedLength;
+    size_t _writtenLength;
+    WebResponseState _state;
+    const char* _responseCodeToString(int code);
+
+  public:
+    AsyncWebServerResponse();
+    virtual ~AsyncWebServerResponse();
+    virtual void setCode(int code);
+    virtual void setContentLength(size_t len);
+    virtual void setContentType(const String& type);
+    virtual void addHeader(const String& name, const String& value);
+    virtual String _assembleHead(uint8_t version);
+    virtual bool _started() const;
+    virtual bool _finished() const;
+    virtual bool _failed() const;
+    virtual bool _sourceValid() const;
+    virtual void _respond(AsyncWebServerRequest *request);
+    virtual size_t _ack(AsyncWebServerRequest *request, size_t len, uint32_t time);
+};
+
+/*
+ * SERVER :: One instance
+ * */
+
+typedef std::function<void(AsyncWebServerRequest *request)> ArRequestHandlerFunction;
+typedef std::function<void(AsyncWebServerRequest *request, const String& filename, size_t index, uint8_t *data, size_t len, bool final)> ArUploadHandlerFunction;
+typedef std::function<void(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total)> ArBodyHandlerFunction;
+
+class AsyncWebServer {
+  protected:
+    AsyncServer _server;
+    LinkedList<AsyncWebRewrite*> _rewrites;
+    LinkedList<AsyncWebHandler*> _handlers;
+    AsyncCallbackWebHandler* _catchAllHandler;
+
+  public:
+    AsyncWebServer(uint16_t port);
+    ~AsyncWebServer();
+
+    void begin();
+    void end();
+
+#if ASYNC_TCP_SSL_ENABLED
+    void onSslFileRequest(AcSSlFileHandler cb, void* arg);
+    void beginSecure(const char *cert, const char *private_key_file, const char *password);
+#endif
+
+    AsyncWebRewrite& addRewrite(AsyncWebRewrite* rewrite);
+    bool removeRewrite(AsyncWebRewrite* rewrite);
+    AsyncWebRewrite& rewrite(const char* from, const char* to);
+
+    AsyncWebHandler& addHandler(AsyncWebHandler* handler);
+    bool removeHandler(AsyncWebHandler* handler);
+  
+    AsyncCallbackWebHandler& on(const char* uri, ArRequestHandlerFunction onRequest);
+    AsyncCallbackWebHandler& on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest);
+    AsyncCallbackWebHandler& on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest, ArUploadHandlerFunction onUpload);
+    AsyncCallbackWebHandler& on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest, ArUploadHandlerFunction onUpload, ArBodyHandlerFunction onBody);
+
+    AsyncStaticWebHandler& serveStatic(const char* uri, fs::FS& fs, const char* path, const char* cache_control = NULL);
+
+    void onNotFound(ArRequestHandlerFunction fn);  //called when handler is not assigned
+    void onFileUpload(ArUploadHandlerFunction fn); //handle file uploads
+    void onRequestBody(ArBodyHandlerFunction fn); //handle posts with plain body content (JSON often transmitted this way as a request)
+
+    void reset(); //remove all writers and handlers, with onNotFound/onFileUpload/onRequestBody 
+  
+    void _handleDisconnect(AsyncWebServerRequest *request);
+    void _attachHandler(AsyncWebServerRequest *request);
+    void _rewriteRequest(AsyncWebServerRequest *request);
+};
+
+class DefaultHeaders {
+  using headers_t = LinkedList<AsyncWebHeader *>;
+  headers_t _headers;
+  
+  DefaultHeaders()
+  :_headers(headers_t([](AsyncWebHeader *h){ delete h; }))
+  {}
+public:
+  using ConstIterator = headers_t::ConstIterator;
+
+  void addHeader(const String& name, const String& value){
+    _headers.add(new AsyncWebHeader(name, value));
+  }  
+  
+  ConstIterator begin() const { return _headers.begin(); }
+  ConstIterator end() const { return _headers.end(); }
+
+  DefaultHeaders(DefaultHeaders const &) = delete;
+  DefaultHeaders &operator=(DefaultHeaders const &) = delete;
+  static DefaultHeaders &Instance() {
+    static DefaultHeaders instance;
+    return instance;
+  }
+};
+
+#include "WebResponseImpl.h"
+#include "WebHandlerImpl.h"
+#include "AsyncWebSocket.h"
+#include "AsyncEventSource.h"
+
+#endif /* _AsyncWebServer_H_ */

Lib_backup/StringArray.h

@@ -0,0 +1,193 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+  This file is part of the esp8266 core for Arduino environment.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#ifndef STRINGARRAY_H_
+#define STRINGARRAY_H_
+
+#include "stddef.h"
+#include "WString.h"
+
+template <typename T>
+class LinkedListNode {
+    T _value;
+  public:
+    LinkedListNode<T>* next;
+    LinkedListNode(const T val): _value(val), next(nullptr) {}
+    ~LinkedListNode(){}
+    const T& value() const { return _value; };
+    T& value(){ return _value; }
+};
+
+template <typename T, template<typename> class Item = LinkedListNode>
+class LinkedList {
+  public:
+    typedef Item<T> ItemType;
+    typedef std::function<void(const T&)> OnRemove;
+    typedef std::function<bool(const T&)> Predicate;
+  private:
+    ItemType* _root;
+    OnRemove _onRemove;
+
+    class Iterator {
+      ItemType* _node;
+    public:
+      Iterator(ItemType* current = nullptr) : _node(current) {}
+      Iterator(const Iterator& i) : _node(i._node) {}
+      Iterator& operator ++() { _node = _node->next; return *this; }
+      bool operator != (const Iterator& i) const { return _node != i._node; }
+      const T& operator * () const { return _node->value(); }
+      const T* operator -> () const { return &_node->value(); }
+    };
+    
+  public:
+    typedef const Iterator ConstIterator;
+    ConstIterator begin() const { return ConstIterator(_root); }
+    ConstIterator end() const { return ConstIterator(nullptr); }
+
+    LinkedList(OnRemove onRemove) : _root(nullptr), _onRemove(onRemove) {}
+    ~LinkedList(){}
+    void add(const T& t){
+      auto it = new ItemType(t);
+      if(!_root){
+        _root = it;
+      } else {
+        auto i = _root;
+        while(i->next) i = i->next;
+        i->next = it;
+      }
+    }
+    T& front() const {
+      return _root->value();
+    }
+    
+    bool isEmpty() const {
+      return _root == nullptr;
+    }
+    size_t length() const {
+      size_t i = 0;
+      auto it = _root;
+      while(it){
+        i++;
+        it = it->next;
+      }
+      return i;
+    }
+    size_t count_if(Predicate predicate) const {
+      size_t i = 0;
+      auto it = _root;
+      while(it){
+        if (!predicate){
+          i++;
+        }
+        else if (predicate(it->value())) {
+          i++;
+        }
+        it = it->next;
+      }
+      return i;
+    }
+    const T* nth(size_t N) const {
+      size_t i = 0;
+      auto it = _root;
+      while(it){
+        if(i++ == N)
+          return &(it->value());
+        it = it->next;
+      }
+      return nullptr;
+    }
+    bool remove(const T& t){
+      auto it = _root;
+      auto pit = _root;
+      while(it){
+        if(it->value() == t){
+          if(it == _root){
+            _root = _root->next;
+          } else {
+            pit->next = it->next;
+          }
+          
+          if (_onRemove) {
+            _onRemove(it->value());
+          }
+          
+          delete it;
+          return true;
+        }
+        pit = it;
+        it = it->next;
+      }
+      return false;
+    }
+    bool remove_first(Predicate predicate){
+      auto it = _root;
+      auto pit = _root;
+      while(it){
+        if(predicate(it->value())){
+          if(it == _root){
+            _root = _root->next;
+          } else {
+            pit->next = it->next;
+          }
+          if (_onRemove) {
+            _onRemove(it->value());
+          }
+          delete it;
+          return true;
+        }
+        pit = it;
+        it = it->next;
+      }
+      return false;
+    }
+    
+    void free(){
+      while(_root != nullptr){
+        auto it = _root;
+        _root = _root->next;
+        if (_onRemove) {
+          _onRemove(it->value());
+        }
+        delete it;
+      }
+      _root = nullptr;
+    }
+};
+
+
+class StringArray : public LinkedList<String> {
+public:
+  
+  StringArray() : LinkedList(nullptr) {}
+  
+  bool containsIgnoreCase(const String& str){
+    for (const auto& s : *this) {
+      if (str.equalsIgnoreCase(s)) {
+        return true;
+      }
+    }
+    return false;
+  }
+};
+
+
+
+
+#endif /* STRINGARRAY_H_ */

Lib_backup/WebAuthentication.cpp

@@ -0,0 +1,235 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+  This file is part of the esp8266 core for Arduino environment.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#include "WebAuthentication.h"
+#include <libb64/cencode.h>
+#ifdef ESP32
+#include "mbedtls/md5.h"
+#else
+#include "md5.h"
+#endif
+
+
+// Basic Auth hash = base64("username:password")
+
+bool checkBasicAuthentication(const char * hash, const char * username, const char * password){
+  if(username == NULL || password == NULL || hash == NULL)
+    return false;
+
+  size_t toencodeLen = strlen(username)+strlen(password)+1;
+  size_t encodedLen = base64_encode_expected_len(toencodeLen);
+  if(strlen(hash) != encodedLen)
+    return false;
+
+  char *toencode = new char[toencodeLen+1];
+  if(toencode == NULL){
+    return false;
+  }
+  char *encoded = new char[base64_encode_expected_len(toencodeLen)+1];
+  if(encoded == NULL){
+    delete[] toencode;
+    return false;
+  }
+  sprintf(toencode, "%s:%s", username, password);
+  if(base64_encode_chars(toencode, toencodeLen, encoded) > 0 && memcmp(hash, encoded, encodedLen) == 0){
+    delete[] toencode;
+    delete[] encoded;
+    return true;
+  }
+  delete[] toencode;
+  delete[] encoded;
+  return false;
+}
+
+static bool getMD5(uint8_t * data, uint16_t len, char * output){//33 bytes or more
+#ifdef ESP32
+    mbedtls_md5_context _ctx;
+#else
+    md5_context_t _ctx;
+#endif
+  uint8_t i;
+  uint8_t * _buf = (uint8_t*)malloc(16);
+  if(_buf == NULL)
+    return false;
+  memset(_buf, 0x00, 16);
+#ifdef ESP32
+  mbedtls_md5_init(&_ctx);
+  mbedtls_md5_starts_ret(&_ctx);
+  mbedtls_md5_update_ret(&_ctx, data, len);
+  mbedtls_md5_finish_ret(&_ctx, _buf);
+#else
+  MD5Init(&_ctx);
+  MD5Update(&_ctx, data, len);
+  MD5Final(_buf, &_ctx);
+#endif
+  for(i = 0; i < 16; i++) {
+    sprintf(output + (i * 2), "%02x", _buf[i]);
+  }
+  free(_buf);
+  return true;
+}
+
+static String genRandomMD5(){
+#ifdef ESP8266
+  uint32_t r = RANDOM_REG32;
+#else
+  uint32_t r = rand();
+#endif
+  char * out = (char*)malloc(33);
+  if(out == NULL || !getMD5((uint8_t*)(&r), 4, out))
+    return "";
+  String res = String(out);
+  free(out);
+  return res;
+}
+
+static String stringMD5(const String& in){
+  char * out = (char*)malloc(33);
+  if(out == NULL || !getMD5((uint8_t*)(in.c_str()), in.length(), out))
+    return "";
+  String res = String(out);
+  free(out);
+  return res;
+}
+
+String generateDigestHash(const char * username, const char * password, const char * realm){
+  if(username == NULL || password == NULL || realm == NULL){
+    return "";
+  }
+  char * out = (char*)malloc(33);
+  String res = String(username);
+  res.concat(":");
+  res.concat(realm);
+  res.concat(":");
+  String in = res;
+  in.concat(password);
+  if(out == NULL || !getMD5((uint8_t*)(in.c_str()), in.length(), out))
+    return "";
+  res.concat(out);
+  free(out);
+  return res;
+}
+
+String requestDigestAuthentication(const char * realm){
+  String header = "realm=\"";
+  if(realm == NULL)
+    header.concat("asyncesp");
+  else
+    header.concat(realm);
+  header.concat( "\", qop=\"auth\", nonce=\"");
+  header.concat(genRandomMD5());
+  header.concat("\", opaque=\"");
+  header.concat(genRandomMD5());
+  header.concat("\"");
+  return header;
+}
+
+bool checkDigestAuthentication(const char * header, const char * method, const char * username, const char * password, const char * realm, bool passwordIsHash, const char * nonce, const char * opaque, const char * uri){
+  if(username == NULL || password == NULL || header == NULL || method == NULL){
+    //os_printf("AUTH FAIL: missing requred fields\n");
+    return false;
+  }
+
+  String myHeader = String(header);
+  int nextBreak = myHeader.indexOf(",");
+  if(nextBreak < 0){
+    //os_printf("AUTH FAIL: no variables\n");
+    return false;
+  }
+
+  String myUsername = String();
+  String myRealm = String();
+  String myNonce = String();
+  String myUri = String();
+  String myResponse = String();
+  String myQop = String();
+  String myNc = String();
+  String myCnonce = String();
+
+  myHeader += ", ";
+  do {
+    String avLine = myHeader.substring(0, nextBreak);
+    avLine.trim();
+    myHeader = myHeader.substring(nextBreak+1);
+    nextBreak = myHeader.indexOf(",");
+
+    int eqSign = avLine.indexOf("=");
+    if(eqSign < 0){
+      //os_printf("AUTH FAIL: no = sign\n");
+      return false;
+    }
+    String varName = avLine.substring(0, eqSign);
+    avLine = avLine.substring(eqSign + 1);
+    if(avLine.startsWith("\"")){
+      avLine = avLine.substring(1, avLine.length() - 1);
+    }
+
+    if(varName.equals("username")){
+      if(!avLine.equals(username)){
+        //os_printf("AUTH FAIL: username\n");
+        return false;
+      }
+      myUsername = avLine;
+    } else if(varName.equals("realm")){
+      if(realm != NULL && !avLine.equals(realm)){
+        //os_printf("AUTH FAIL: realm\n");
+        return false;
+      }
+      myRealm = avLine;
+    } else if(varName.equals("nonce")){
+      if(nonce != NULL && !avLine.equals(nonce)){
+        //os_printf("AUTH FAIL: nonce\n");
+        return false;
+      }
+      myNonce = avLine;
+    } else if(varName.equals("opaque")){
+      if(opaque != NULL && !avLine.equals(opaque)){
+        //os_printf("AUTH FAIL: opaque\n");
+        return false;
+      }
+    } else if(varName.equals("uri")){
+      if(uri != NULL && !avLine.equals(uri)){
+        //os_printf("AUTH FAIL: uri\n");
+        return false;
+      }
+      myUri = avLine;
+    } else if(varName.equals("response")){
+      myResponse = avLine;
+    } else if(varName.equals("qop")){
+      myQop = avLine;
+    } else if(varName.equals("nc")){
+      myNc = avLine;
+    } else if(varName.equals("cnonce")){
+      myCnonce = avLine;
+    }
+  } while(nextBreak > 0);
+
+  String ha1 = (passwordIsHash) ? String(password) : stringMD5(myUsername + ":" + myRealm + ":" + String(password));
+  String ha2 = String(method) + ":" + myUri;
+  String response = ha1 + ":" + myNonce + ":" + myNc + ":" + myCnonce + ":" + myQop + ":" + stringMD5(ha2);
+
+  if(myResponse.equals(stringMD5(response))){
+    //os_printf("AUTH SUCCESS\n");
+    return true;
+  }
+
+  //os_printf("AUTH FAIL: password\n");
+  return false;
+}

Lib_backup/WebAuthentication.h

@@ -0,0 +1,34 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+  This file is part of the esp8266 core for Arduino environment.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef WEB_AUTHENTICATION_H_
+#define WEB_AUTHENTICATION_H_
+
+#include "Arduino.h"
+
+bool checkBasicAuthentication(const char * header, const char * username, const char * password);
+String requestDigestAuthentication(const char * realm);
+bool checkDigestAuthentication(const char * header, const char * method, const char * username, const char * password, const char * realm, bool passwordIsHash, const char * nonce, const char * opaque, const char * uri);
+
+//for storing hashed versions on the device that can be authenticated against
+String generateDigestHash(const char * username, const char * password, const char * realm);
+
+#endif

Lib_backup/WebHandlerImpl.h

@@ -0,0 +1,151 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+  This file is part of the esp8266 core for Arduino environment.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#ifndef ASYNCWEBSERVERHANDLERIMPL_H_
+#define ASYNCWEBSERVERHANDLERIMPL_H_
+
+#include <string>
+#ifdef ASYNCWEBSERVER_REGEX
+#include <regex>
+#endif
+
+#include "stddef.h"
+#include <time.h>
+
+class AsyncStaticWebHandler: public AsyncWebHandler {
+   using File = fs::File;
+   using FS = fs::FS;
+  private:
+    bool _getFile(AsyncWebServerRequest *request);
+    bool _fileExists(AsyncWebServerRequest *request, const String& path);
+    uint8_t _countBits(const uint8_t value) const;
+  protected:
+    FS _fs;
+    String _uri;
+    String _path;
+    String _default_file;
+    String _cache_control;
+    String _last_modified;
+    AwsTemplateProcessor _callback;
+    bool _isDir;
+    bool _gzipFirst;
+    uint8_t _gzipStats;
+  public:
+    AsyncStaticWebHandler(const char* uri, FS& fs, const char* path, const char* cache_control);
+    virtual bool canHandle(AsyncWebServerRequest *request) override final;
+    virtual void handleRequest(AsyncWebServerRequest *request) override final;
+    AsyncStaticWebHandler& setIsDir(bool isDir);
+    AsyncStaticWebHandler& setDefaultFile(const char* filename);
+    AsyncStaticWebHandler& setCacheControl(const char* cache_control);
+    AsyncStaticWebHandler& setLastModified(const char* last_modified);
+    AsyncStaticWebHandler& setLastModified(struct tm* last_modified);
+  #ifdef ESP8266
+    AsyncStaticWebHandler& setLastModified(time_t last_modified);
+    AsyncStaticWebHandler& setLastModified(); //sets to current time. Make sure sntp is runing and time is updated
+  #endif
+    AsyncStaticWebHandler& setTemplateProcessor(AwsTemplateProcessor newCallback) {_callback = newCallback; return *this;}
+};
+
+class AsyncCallbackWebHandler: public AsyncWebHandler {
+  private:
+  protected:
+    String _uri;
+    WebRequestMethodComposite _method;
+    ArRequestHandlerFunction _onRequest;
+    ArUploadHandlerFunction _onUpload;
+    ArBodyHandlerFunction _onBody;
+    bool _isRegex;
+  public:
+    AsyncCallbackWebHandler() : _uri(), _method(HTTP_ANY), _onRequest(NULL), _onUpload(NULL), _onBody(NULL), _isRegex(false) {}
+    void setUri(const String& uri){ 
+      _uri = uri; 
+      _isRegex = uri.startsWith("^") && uri.endsWith("$");
+    }
+    void setMethod(WebRequestMethodComposite method){ _method = method; }
+    void onRequest(ArRequestHandlerFunction fn){ _onRequest = fn; }
+    void onUpload(ArUploadHandlerFunction fn){ _onUpload = fn; }
+    void onBody(ArBodyHandlerFunction fn){ _onBody = fn; }
+
+    virtual bool canHandle(AsyncWebServerRequest *request) override final{
+
+      if(!_onRequest)
+        return false;
+
+      if(!(_method & request->method()))
+        return false;
+
+#ifdef ASYNCWEBSERVER_REGEX
+      if (_isRegex) {
+        std::regex pattern(_uri.c_str());
+        std::smatch matches;
+        std::string s(request->url().c_str());
+        if(std::regex_search(s, matches, pattern)) {
+          for (size_t i = 1; i < matches.size(); ++i) { // start from 1
+            request->_addPathParam(matches[i].str().c_str());
+          }
+        } else {
+          return false;
+        }
+      } else 
+#endif
+      if (_uri.length() && _uri.startsWith("/*.")) {
+         String uriTemplate = String (_uri);
+         uriTemplate = uriTemplate.substring(uriTemplate.lastIndexOf("."));
+         if (!request->url().endsWith(uriTemplate))
+           return false;
+      }
+      else
+      if (_uri.length() && _uri.endsWith("*")) {
+        String uriTemplate = String(_uri);
+	uriTemplate = uriTemplate.substring(0, uriTemplate.length() - 1);
+        if (!request->url().startsWith(uriTemplate))
+          return false;
+      }
+      else if(_uri.length() && (_uri != request->url() && !request->url().startsWith(_uri+"/")))
+        return false;
+
+      request->addInterestingHeader("ANY");
+      return true;
+    }
+  
+    virtual void handleRequest(AsyncWebServerRequest *request) override final {
+      if((_username != "" && _password != "") && !request->authenticate(_username.c_str(), _password.c_str()))
+        return request->requestAuthentication();
+      if(_onRequest)
+        _onRequest(request);
+      else
+        request->send(500);
+    }
+    virtual void handleUpload(AsyncWebServerRequest *request, const String& filename, size_t index, uint8_t *data, size_t len, bool final) override final {
+      if((_username != "" && _password != "") && !request->authenticate(_username.c_str(), _password.c_str()))
+        return request->requestAuthentication();
+      if(_onUpload)
+        _onUpload(request, filename, index, data, len, final);
+    }
+    virtual void handleBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) override final {
+      if((_username != "" && _password != "") && !request->authenticate(_username.c_str(), _password.c_str()))
+        return request->requestAuthentication();
+      if(_onBody)
+        _onBody(request, data, len, index, total);
+    }
+    virtual bool isRequestHandlerTrivial() override final {return _onRequest ? false : true;}
+};
+
+#endif /* ASYNCWEBSERVERHANDLERIMPL_H_ */

Lib_backup/WebHandlers.cpp

@@ -0,0 +1,220 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+  This file is part of the esp8266 core for Arduino environment.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#include "ESPAsyncWebServer.h"
+#include "WebHandlerImpl.h"
+
+AsyncStaticWebHandler::AsyncStaticWebHandler(const char* uri, FS& fs, const char* path, const char* cache_control)
+  : _fs(fs), _uri(uri), _path(path), _default_file("index.htm"), _cache_control(cache_control), _last_modified(""), _callback(nullptr)
+{
+  // Ensure leading '/'
+  if (_uri.length() == 0 || _uri[0] != '/') _uri = "/" + _uri;
+  if (_path.length() == 0 || _path[0] != '/') _path = "/" + _path;
+
+  // If path ends with '/' we assume a hint that this is a directory to improve performance.
+  // However - if it does not end with '/' we, can't assume a file, path can still be a directory.
+  _isDir = _path[_path.length()-1] == '/';
+
+  // Remove the trailing '/' so we can handle default file
+  // Notice that root will be "" not "/"
+  if (_uri[_uri.length()-1] == '/') _uri = _uri.substring(0, _uri.length()-1);
+  if (_path[_path.length()-1] == '/') _path = _path.substring(0, _path.length()-1);
+
+  // Reset stats
+  _gzipFirst = false;
+  _gzipStats = 0xF8;
+}
+
+AsyncStaticWebHandler& AsyncStaticWebHandler::setIsDir(bool isDir){
+  _isDir = isDir;
+  return *this;
+}
+
+AsyncStaticWebHandler& AsyncStaticWebHandler::setDefaultFile(const char* filename){
+  _default_file = String(filename);
+  return *this;
+}
+
+AsyncStaticWebHandler& AsyncStaticWebHandler::setCacheControl(const char* cache_control){
+  _cache_control = String(cache_control);
+  return *this;
+}
+
+AsyncStaticWebHandler& AsyncStaticWebHandler::setLastModified(const char* last_modified){
+  _last_modified = String(last_modified);
+  return *this;
+}
+
+AsyncStaticWebHandler& AsyncStaticWebHandler::setLastModified(struct tm* last_modified){
+  char result[30];
+  strftime (result,30,"%a, %d %b %Y %H:%M:%S %Z", last_modified);
+  return setLastModified((const char *)result);
+}
+
+#ifdef ESP8266
+AsyncStaticWebHandler& AsyncStaticWebHandler::setLastModified(time_t last_modified){
+  return setLastModified((struct tm *)gmtime(&last_modified));
+}
+
+AsyncStaticWebHandler& AsyncStaticWebHandler::setLastModified(){
+  time_t last_modified;
+  if(time(&last_modified) == 0) //time is not yet set
+    return *this;
+  return setLastModified(last_modified);
+}
+#endif
+bool AsyncStaticWebHandler::canHandle(AsyncWebServerRequest *request){
+  if(request->method() != HTTP_GET 
+    || !request->url().startsWith(_uri) 
+    || !request->isExpectedRequestedConnType(RCT_DEFAULT, RCT_HTTP)
+  ){
+    return false;
+  }
+  if (_getFile(request)) {
+    // We interested in "If-Modified-Since" header to check if file was modified
+    if (_last_modified.length())
+      request->addInterestingHeader("If-Modified-Since");
+
+    if(_cache_control.length())
+      request->addInterestingHeader("If-None-Match");
+
+    DEBUGF("[AsyncStaticWebHandler::canHandle] TRUE\n");
+    return true;
+  }
+
+  return false;
+}
+
+bool AsyncStaticWebHandler::_getFile(AsyncWebServerRequest *request)
+{
+  // Remove the found uri
+  String path = request->url().substring(_uri.length());
+
+  // We can skip the file check and look for default if request is to the root of a directory or that request path ends with '/'
+  bool canSkipFileCheck = (_isDir && path.length() == 0) || (path.length() && path[path.length()-1] == '/');
+
+  path = _path + path;
+
+  // Do we have a file or .gz file
+  if (!canSkipFileCheck && _fileExists(request, path))
+    return true;
+
+  // Can't handle if not default file
+  if (_default_file.length() == 0)
+    return false;
+
+  // Try to add default file, ensure there is a trailing '/' ot the path.
+  if (path.length() == 0 || path[path.length()-1] != '/')
+    path += "/";
+  path += _default_file;
+
+  return _fileExists(request, path);
+}
+
+#ifdef ESP32
+#define FILE_IS_REAL(f) (f == true && !f.isDirectory())
+#else
+#define FILE_IS_REAL(f) (f == true)
+#endif
+
+bool AsyncStaticWebHandler::_fileExists(AsyncWebServerRequest *request, const String& path)
+{
+  bool fileFound = false;
+  bool gzipFound = false;
+
+  String gzip = path + ".gz";
+
+  if (_gzipFirst) {
+    request->_tempFile = _fs.open(gzip, "r");
+    gzipFound = FILE_IS_REAL(request->_tempFile);
+    if (!gzipFound){
+      request->_tempFile = _fs.open(path, "r");
+      fileFound = FILE_IS_REAL(request->_tempFile);
+    }
+  } else {
+    request->_tempFile = _fs.open(path, "r");
+    fileFound = FILE_IS_REAL(request->_tempFile);
+    if (!fileFound){
+      request->_tempFile = _fs.open(gzip, "r");
+      gzipFound = FILE_IS_REAL(request->_tempFile);
+    }
+  }
+
+  bool found = fileFound || gzipFound;
+
+  if (found) {
+    // Extract the file name from the path and keep it in _tempObject
+    size_t pathLen = path.length();
+    char * _tempPath = (char*)malloc(pathLen+1);
+    snprintf(_tempPath, pathLen+1, "%s", path.c_str());
+    request->_tempObject = (void*)_tempPath;
+
+    // Calculate gzip statistic
+    _gzipStats = (_gzipStats << 1) + (gzipFound ? 1 : 0);
+    if (_gzipStats == 0x00) _gzipFirst = false; // All files are not gzip
+    else if (_gzipStats == 0xFF) _gzipFirst = true; // All files are gzip
+    else _gzipFirst = _countBits(_gzipStats) > 4; // IF we have more gzip files - try gzip first
+  }
+
+  return found;
+}
+
+uint8_t AsyncStaticWebHandler::_countBits(const uint8_t value) const
+{
+  uint8_t w = value;
+  uint8_t n;
+  for (n=0; w!=0; n++) w&=w-1;
+  return n;
+}
+
+void AsyncStaticWebHandler::handleRequest(AsyncWebServerRequest *request)
+{
+  // Get the filename from request->_tempObject and free it
+  String filename = String((char*)request->_tempObject);
+  free(request->_tempObject);
+  request->_tempObject = NULL;
+  if((_username != "" && _password != "") && !request->authenticate(_username.c_str(), _password.c_str()))
+      return request->requestAuthentication();
+
+  if (request->_tempFile == true) {
+    String etag = String(request->_tempFile.size());
+    if (_last_modified.length() && _last_modified == request->header("If-Modified-Since")) {
+      request->_tempFile.close();
+      request->send(304); // Not modified
+    } else if (_cache_control.length() && request->hasHeader("If-None-Match") && request->header("If-None-Match").equals(etag)) {
+      request->_tempFile.close();
+      AsyncWebServerResponse * response = new AsyncBasicResponse(304); // Not modified
+      response->addHeader("Cache-Control", _cache_control);
+      response->addHeader("ETag", etag);
+      request->send(response);
+    } else {
+      AsyncWebServerResponse * response = new AsyncFileResponse(request->_tempFile, filename, String(), false, _callback);
+      if (_last_modified.length())
+        response->addHeader("Last-Modified", _last_modified);
+      if (_cache_control.length()){
+        response->addHeader("Cache-Control", _cache_control);
+        response->addHeader("ETag", etag);
+      }
+      request->send(response);
+    }
+  } else {
+    request->send(404);
+  }
+}

Lib_backup/WebResponseImpl.h

@@ -0,0 +1,136 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+  This file is part of the esp8266 core for Arduino environment.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#ifndef ASYNCWEBSERVERRESPONSEIMPL_H_
+#define ASYNCWEBSERVERRESPONSEIMPL_H_
+
+#ifdef Arduino_h
+// arduino is not compatible with std::vector
+#undef min
+#undef max
+#endif
+#include <vector>
+// It is possible to restore these defines, but one can use _min and _max instead. Or std::min, std::max.
+
+class AsyncBasicResponse: public AsyncWebServerResponse {
+  private:
+    String _content;
+  public:
+    AsyncBasicResponse(int code, const String& contentType=String(), const String& content=String());
+    void _respond(AsyncWebServerRequest *request);
+    size_t _ack(AsyncWebServerRequest *request, size_t len, uint32_t time);
+    bool _sourceValid() const { return true; }
+};
+
+class AsyncAbstractResponse: public AsyncWebServerResponse {
+  private:
+    String _head;
+    // Data is inserted into cache at begin(). 
+    // This is inefficient with vector, but if we use some other container, 
+    // we won't be able to access it as contiguous array of bytes when reading from it,
+    // so by gaining performance in one place, we'll lose it in another.
+    std::vector<uint8_t> _cache;
+    size_t _readDataFromCacheOrContent(uint8_t* data, const size_t len);
+    size_t _fillBufferAndProcessTemplates(uint8_t* buf, size_t maxLen);
+  protected:
+    AwsTemplateProcessor _callback;
+  public:
+    AsyncAbstractResponse(AwsTemplateProcessor callback=nullptr);
+    void _respond(AsyncWebServerRequest *request);
+    size_t _ack(AsyncWebServerRequest *request, size_t len, uint32_t time);
+    bool _sourceValid() const { return false; }
+    virtual size_t _fillBuffer(uint8_t *buf __attribute__((unused)), size_t maxLen __attribute__((unused))) { return 0; }
+};
+
+#ifndef TEMPLATE_PLACEHOLDER
+#define TEMPLATE_PLACEHOLDER '%'
+#endif
+
+#define TEMPLATE_PARAM_NAME_LENGTH 32
+class AsyncFileResponse: public AsyncAbstractResponse {
+  using File = fs::File;
+  using FS = fs::FS;
+  private:
+    File _content;
+    String _path;
+    void _setContentType(const String& path);
+  public:
+    AsyncFileResponse(FS &fs, const String& path, const String& contentType=String(), bool download=false, AwsTemplateProcessor callback=nullptr);
+    AsyncFileResponse(File content, const String& path, const String& contentType=String(), bool download=false, AwsTemplateProcessor callback=nullptr);
+    ~AsyncFileResponse();
+    bool _sourceValid() const { return !!(_content); }
+    virtual size_t _fillBuffer(uint8_t *buf, size_t maxLen) override;
+};
+
+class AsyncStreamResponse: public AsyncAbstractResponse {
+  private:
+    Stream *_content;
+  public:
+    AsyncStreamResponse(Stream &stream, const String& contentType, size_t len, AwsTemplateProcessor callback=nullptr);
+    bool _sourceValid() const { return !!(_content); }
+    virtual size_t _fillBuffer(uint8_t *buf, size_t maxLen) override;
+};
+
+class AsyncCallbackResponse: public AsyncAbstractResponse {
+  private:
+    AwsResponseFiller _content;
+    size_t _filledLength;
+  public:
+    AsyncCallbackResponse(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback=nullptr);
+    bool _sourceValid() const { return !!(_content); }
+    virtual size_t _fillBuffer(uint8_t *buf, size_t maxLen) override;
+};
+
+class AsyncChunkedResponse: public AsyncAbstractResponse {
+  private:
+    AwsResponseFiller _content;
+    size_t _filledLength;
+  public:
+    AsyncChunkedResponse(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback=nullptr);
+    bool _sourceValid() const { return !!(_content); }
+    virtual size_t _fillBuffer(uint8_t *buf, size_t maxLen) override;
+};
+
+class AsyncProgmemResponse: public AsyncAbstractResponse {
+  private:
+    const uint8_t * _content;
+    size_t _readLength;
+  public:
+    AsyncProgmemResponse(int code, const String& contentType, const uint8_t * content, size_t len, AwsTemplateProcessor callback=nullptr);
+    bool _sourceValid() const { return true; }
+    virtual size_t _fillBuffer(uint8_t *buf, size_t maxLen) override;
+};
+
+class cbuf;
+
+class AsyncResponseStream: public AsyncAbstractResponse, public Print {
+  private:
+    cbuf *_content;
+  public:
+    AsyncResponseStream(const String& contentType, size_t bufferSize);
+    ~AsyncResponseStream();
+    bool _sourceValid() const { return (_state < RESPONSE_END); }
+    virtual size_t _fillBuffer(uint8_t *buf, size_t maxLen) override;
+    size_t write(const uint8_t *data, size_t len);
+    size_t write(uint8_t data);
+    using Print::write;
+};
+
+#endif /* ASYNCWEBSERVERRESPONSEIMPL_H_ */

Lib_backup/WebResponses.cpp

@@ -0,0 +1,699 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+  This file is part of the esp8266 core for Arduino environment.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#include "ESPAsyncWebServer.h"
+#include "WebResponseImpl.h"
+#include "cbuf.h"
+
+// Since ESP8266 does not link memchr by default, here's its implementation.
+void* memchr(void* ptr, int ch, size_t count)
+{
+  unsigned char* p = static_cast<unsigned char*>(ptr);
+  while(count--)
+    if(*p++ == static_cast<unsigned char>(ch))
+      return --p;
+  return nullptr;
+}
+
+
+/*
+ * Abstract Response
+ * */
+const char* AsyncWebServerResponse::_responseCodeToString(int code) {
+  switch (code) {
+    case 100: return "Continue";
+    case 101: return "Switching Protocols";
+    case 200: return "OK";
+    case 201: return "Created";
+    case 202: return "Accepted";
+    case 203: return "Non-Authoritative Information";
+    case 204: return "No Content";
+    case 205: return "Reset Content";
+    case 206: return "Partial Content";
+    case 300: return "Multiple Choices";
+    case 301: return "Moved Permanently";
+    case 302: return "Found";
+    case 303: return "See Other";
+    case 304: return "Not Modified";
+    case 305: return "Use Proxy";
+    case 307: return "Temporary Redirect";
+    case 400: return "Bad Request";
+    case 401: return "Unauthorized";
+    case 402: return "Payment Required";
+    case 403: return "Forbidden";
+    case 404: return "Not Found";
+    case 405: return "Method Not Allowed";
+    case 406: return "Not Acceptable";
+    case 407: return "Proxy Authentication Required";
+    case 408: return "Request Time-out";
+    case 409: return "Conflict";
+    case 410: return "Gone";
+    case 411: return "Length Required";
+    case 412: return "Precondition Failed";
+    case 413: return "Request Entity Too Large";
+    case 414: return "Request-URI Too Large";
+    case 415: return "Unsupported Media Type";
+    case 416: return "Requested range not satisfiable";
+    case 417: return "Expectation Failed";
+    case 500: return "Internal Server Error";
+    case 501: return "Not Implemented";
+    case 502: return "Bad Gateway";
+    case 503: return "Service Unavailable";
+    case 504: return "Gateway Time-out";
+    case 505: return "HTTP Version not supported";
+    default:  return "";
+  }
+}
+
+AsyncWebServerResponse::AsyncWebServerResponse()
+  : _code(0)
+  , _headers(LinkedList<AsyncWebHeader *>([](AsyncWebHeader *h){ delete h; }))
+  , _contentType()
+  , _contentLength(0)
+  , _sendContentLength(true)
+  , _chunked(false)
+  , _headLength(0)
+  , _sentLength(0)
+  , _ackedLength(0)
+  , _writtenLength(0)
+  , _state(RESPONSE_SETUP)
+{
+  for(auto header: DefaultHeaders::Instance()) {
+    _headers.add(new AsyncWebHeader(header->name(), header->value()));
+  }
+}
+
+AsyncWebServerResponse::~AsyncWebServerResponse(){
+  _headers.free();
+}
+
+void AsyncWebServerResponse::setCode(int code){
+  if(_state == RESPONSE_SETUP)
+    _code = code;
+}
+
+void AsyncWebServerResponse::setContentLength(size_t len){
+  if(_state == RESPONSE_SETUP)
+    _contentLength = len;
+}
+
+void AsyncWebServerResponse::setContentType(const String& type){
+  if(_state == RESPONSE_SETUP)
+    _contentType = type;
+}
+
+void AsyncWebServerResponse::addHeader(const String& name, const String& value){
+  _headers.add(new AsyncWebHeader(name, value));
+}
+
+String AsyncWebServerResponse::_assembleHead(uint8_t version){
+  if(version){
+    addHeader("Accept-Ranges","none");
+    if(_chunked)
+      addHeader("Transfer-Encoding","chunked");
+  }
+  String out = String();
+  int bufSize = 300;
+  char buf[bufSize];
+
+  snprintf(buf, bufSize, "HTTP/1.%d %d %s\r\n", version, _code, _responseCodeToString(_code));
+  out.concat(buf);
+
+  if(_sendContentLength) {
+    snprintf(buf, bufSize, "Content-Length: %d\r\n", _contentLength);
+    out.concat(buf);
+  }
+  if(_contentType.length()) {
+    snprintf(buf, bufSize, "Content-Type: %s\r\n", _contentType.c_str());
+    out.concat(buf);
+  }
+
+  for(const auto& header: _headers){
+    snprintf(buf, bufSize, "%s: %s\r\n", header->name().c_str(), header->value().c_str());
+    out.concat(buf);
+  }
+  _headers.free();
+
+  out.concat("\r\n");
+  _headLength = out.length();
+  return out;
+}
+
+bool AsyncWebServerResponse::_started() const { return _state > RESPONSE_SETUP; }
+bool AsyncWebServerResponse::_finished() const { return _state > RESPONSE_WAIT_ACK; }
+bool AsyncWebServerResponse::_failed() const { return _state == RESPONSE_FAILED; }
+bool AsyncWebServerResponse::_sourceValid() const { return false; }
+void AsyncWebServerResponse::_respond(AsyncWebServerRequest *request){ _state = RESPONSE_END; request->client()->close(); }
+size_t AsyncWebServerResponse::_ack(AsyncWebServerRequest *request, size_t len, uint32_t time){ (void)request; (void)len; (void)time; return 0; }
+
+/*
+ * String/Code Response
+ * */
+AsyncBasicResponse::AsyncBasicResponse(int code, const String& contentType, const String& content){
+  _code = code;
+  _content = content;
+  _contentType = contentType;
+  if(_content.length()){
+    _contentLength = _content.length();
+    if(!_contentType.length())
+      _contentType = "text/plain";
+  }
+  addHeader("Connection","close");
+}
+
+void AsyncBasicResponse::_respond(AsyncWebServerRequest *request){
+  _state = RESPONSE_HEADERS;
+  String out = _assembleHead(request->version());
+  size_t outLen = out.length();
+  size_t space = request->client()->space();
+  if(!_contentLength && space >= outLen){
+    _writtenLength += request->client()->write(out.c_str(), outLen);
+    _state = RESPONSE_WAIT_ACK;
+  } else if(_contentLength && space >= outLen + _contentLength){
+    out += _content;
+    outLen += _contentLength;
+    _writtenLength += request->client()->write(out.c_str(), outLen);
+    _state = RESPONSE_WAIT_ACK;
+  } else if(space && space < outLen){
+    String partial = out.substring(0, space);
+    _content = out.substring(space) + _content;
+    _contentLength += outLen - space;
+    _writtenLength += request->client()->write(partial.c_str(), partial.length());
+    _state = RESPONSE_CONTENT;
+  } else if(space > outLen && space < (outLen + _contentLength)){
+    size_t shift = space - outLen;
+    outLen += shift;
+    _sentLength += shift;
+    out += _content.substring(0, shift);
+    _content = _content.substring(shift);
+    _writtenLength += request->client()->write(out.c_str(), outLen);
+    _state = RESPONSE_CONTENT;
+  } else {
+    _content = out + _content;
+    _contentLength += outLen;
+    _state = RESPONSE_CONTENT;
+  }
+}
+
+size_t AsyncBasicResponse::_ack(AsyncWebServerRequest *request, size_t len, uint32_t time){
+  (void)time;
+  _ackedLength += len;
+  if(_state == RESPONSE_CONTENT){
+    size_t available = _contentLength - _sentLength;
+    size_t space = request->client()->space();
+    //we can fit in this packet
+    if(space > available){
+      _writtenLength += request->client()->write(_content.c_str(), available);
+      _content = String();
+      _state = RESPONSE_WAIT_ACK;
+      return available;
+    }
+    //send some data, the rest on ack
+    String out = _content.substring(0, space);
+    _content = _content.substring(space);
+    _sentLength += space;
+    _writtenLength += request->client()->write(out.c_str(), space);
+    return space;
+  } else if(_state == RESPONSE_WAIT_ACK){
+    if(_ackedLength >= _writtenLength){
+      _state = RESPONSE_END;
+    }
+  }
+  return 0;
+}
+
+
+/*
+ * Abstract Response
+ * */
+
+AsyncAbstractResponse::AsyncAbstractResponse(AwsTemplateProcessor callback): _callback(callback)
+{
+  // In case of template processing, we're unable to determine real response size
+  if(callback) {
+    _contentLength = 0;
+    _sendContentLength = false;
+    _chunked = true;
+  }
+}
+
+void AsyncAbstractResponse::_respond(AsyncWebServerRequest *request){
+  addHeader("Connection","close");
+  _head = _assembleHead(request->version());
+  _state = RESPONSE_HEADERS;
+  _ack(request, 0, 0);
+}
+
+size_t AsyncAbstractResponse::_ack(AsyncWebServerRequest *request, size_t len, uint32_t time){
+  (void)time;
+  if(!_sourceValid()){
+    _state = RESPONSE_FAILED;
+    request->client()->close();
+    return 0;
+  }
+  _ackedLength += len;
+  size_t space = request->client()->space();
+
+  size_t headLen = _head.length();
+  if(_state == RESPONSE_HEADERS){
+    if(space >= headLen){
+      _state = RESPONSE_CONTENT;
+      space -= headLen;
+    } else {
+      String out = _head.substring(0, space);
+      _head = _head.substring(space);
+      _writtenLength += request->client()->write(out.c_str(), out.length());
+      return out.length();
+    }
+  }
+
+  if(_state == RESPONSE_CONTENT){
+    size_t outLen;
+    if(_chunked){
+      if(space <= 8){
+        return 0;
+      }
+      outLen = space;
+    } else if(!_sendContentLength){
+      outLen = space;
+    } else {
+      outLen = ((_contentLength - _sentLength) > space)?space:(_contentLength - _sentLength);
+    }
+
+    uint8_t *buf = (uint8_t *)malloc(outLen+headLen);
+    if (!buf) {
+      // os_printf("_ack malloc %d failed\n", outLen+headLen);
+      return 0;
+    }
+
+    if(headLen){
+      memcpy(buf, _head.c_str(), _head.length());
+    }
+
+    size_t readLen = 0;
+
+    if(_chunked){
+      // HTTP 1.1 allows leading zeros in chunk length. Or spaces may be added.
+      // See RFC2616 sections 2, 3.6.1.
+      readLen = _fillBufferAndProcessTemplates(buf+headLen+6, outLen - 8);
+      if(readLen == RESPONSE_TRY_AGAIN){
+          free(buf);
+          return 0;
+      }
+      outLen = sprintf((char*)buf+headLen, "%x", readLen) + headLen;
+      while(outLen < headLen + 4) buf[outLen++] = ' ';
+      buf[outLen++] = '\r';
+      buf[outLen++] = '\n';
+      outLen += readLen;
+      buf[outLen++] = '\r';
+      buf[outLen++] = '\n';
+    } else {
+      readLen = _fillBufferAndProcessTemplates(buf+headLen, outLen);
+      if(readLen == RESPONSE_TRY_AGAIN){
+          free(buf);
+          return 0;
+      }
+      outLen = readLen + headLen;
+    }
+
+    if(headLen){
+        _head = String();
+    }
+
+    if(outLen){
+        _writtenLength += request->client()->write((const char*)buf, outLen);
+    }
+
+    if(_chunked){
+        _sentLength += readLen;
+    } else {
+        _sentLength += outLen - headLen;
+    }
+
+    free(buf);
+
+    if((_chunked && readLen == 0) || (!_sendContentLength && outLen == 0) || (!_chunked && _sentLength == _contentLength)){
+      _state = RESPONSE_WAIT_ACK;
+    }
+    return outLen;
+
+  } else if(_state == RESPONSE_WAIT_ACK){
+    if(!_sendContentLength || _ackedLength >= _writtenLength){
+      _state = RESPONSE_END;
+      if(!_chunked && !_sendContentLength)
+        request->client()->close(true);
+    }
+  }
+  return 0;
+}
+
+size_t AsyncAbstractResponse::_readDataFromCacheOrContent(uint8_t* data, const size_t len)
+{
+    // If we have something in cache, copy it to buffer
+    const size_t readFromCache = std::min(len, _cache.size());
+    if(readFromCache) {
+      memcpy(data, _cache.data(), readFromCache);
+      _cache.erase(_cache.begin(), _cache.begin() + readFromCache);
+    }
+    // If we need to read more...
+    const size_t needFromFile = len - readFromCache;
+    const size_t readFromContent = _fillBuffer(data + readFromCache, needFromFile);
+    return readFromCache + readFromContent;
+}
+
+size_t AsyncAbstractResponse::_fillBufferAndProcessTemplates(uint8_t* data, size_t len)
+{
+  if(!_callback)
+    return _fillBuffer(data, len);
+
+  const size_t originalLen = len;
+  len = _readDataFromCacheOrContent(data, len);
+  // Now we've read 'len' bytes, either from cache or from file
+  // Search for template placeholders
+  uint8_t* pTemplateStart = data;
+  while((pTemplateStart < &data[len]) && (pTemplateStart = (uint8_t*)memchr(pTemplateStart, TEMPLATE_PLACEHOLDER, &data[len - 1] - pTemplateStart + 1))) { // data[0] ... data[len - 1]
+    uint8_t* pTemplateEnd = (pTemplateStart < &data[len - 1]) ? (uint8_t*)memchr(pTemplateStart + 1, TEMPLATE_PLACEHOLDER, &data[len - 1] - pTemplateStart) : nullptr;
+    // temporary buffer to hold parameter name
+    uint8_t buf[TEMPLATE_PARAM_NAME_LENGTH + 1];
+    String paramName;
+    // If closing placeholder is found:
+    if(pTemplateEnd) {
+      // prepare argument to callback
+      const size_t paramNameLength = std::min(sizeof(buf) - 1, (unsigned int)(pTemplateEnd - pTemplateStart - 1));
+      if(paramNameLength) {
+        memcpy(buf, pTemplateStart + 1, paramNameLength);
+        buf[paramNameLength] = 0;
+        paramName = String(reinterpret_cast<char*>(buf));
+      } else { // double percent sign encountered, this is single percent sign escaped.
+        // remove the 2nd percent sign
+        memmove(pTemplateEnd, pTemplateEnd + 1, &data[len] - pTemplateEnd - 1);
+        len += _readDataFromCacheOrContent(&data[len - 1], 1) - 1;
+        ++pTemplateStart;
+      }
+    } else if(&data[len - 1] - pTemplateStart + 1 < TEMPLATE_PARAM_NAME_LENGTH + 2) { // closing placeholder not found, check if it's in the remaining file data
+      memcpy(buf, pTemplateStart + 1, &data[len - 1] - pTemplateStart);
+      const size_t readFromCacheOrContent = _readDataFromCacheOrContent(buf + (&data[len - 1] - pTemplateStart), TEMPLATE_PARAM_NAME_LENGTH + 2 - (&data[len - 1] - pTemplateStart + 1));
+      if(readFromCacheOrContent) {
+        pTemplateEnd = (uint8_t*)memchr(buf + (&data[len - 1] - pTemplateStart), TEMPLATE_PLACEHOLDER, readFromCacheOrContent);
+        if(pTemplateEnd) {
+          // prepare argument to callback
+          *pTemplateEnd = 0;
+          paramName = String(reinterpret_cast<char*>(buf));
+          // Copy remaining read-ahead data into cache
+          _cache.insert(_cache.begin(), pTemplateEnd + 1, buf + (&data[len - 1] - pTemplateStart) + readFromCacheOrContent);
+          pTemplateEnd = &data[len - 1];
+        }
+        else // closing placeholder not found in file data, store found percent symbol as is and advance to the next position
+        {
+          // but first, store read file data in cache
+          _cache.insert(_cache.begin(), buf + (&data[len - 1] - pTemplateStart), buf + (&data[len - 1] - pTemplateStart) + readFromCacheOrContent);
+          ++pTemplateStart;
+        }
+      }
+      else // closing placeholder not found in content data, store found percent symbol as is and advance to the next position
+        ++pTemplateStart;
+    }
+    else // closing placeholder not found in content data, store found percent symbol as is and advance to the next position
+      ++pTemplateStart;
+    if(paramName.length()) {
+      // call callback and replace with result.
+      // Everything in range [pTemplateStart, pTemplateEnd] can be safely replaced with parameter value.
+      // Data after pTemplateEnd may need to be moved.
+      // The first byte of data after placeholder is located at pTemplateEnd + 1.
+      // It should be located at pTemplateStart + numBytesCopied (to begin right after inserted parameter value).
+      const String paramValue(_callback(paramName));
+      const char* pvstr = paramValue.c_str();
+      const unsigned int pvlen = paramValue.length();
+      const size_t numBytesCopied = std::min(pvlen, static_cast<unsigned int>(&data[originalLen - 1] - pTemplateStart + 1));
+      // make room for param value
+      // 1. move extra data to cache if parameter value is longer than placeholder AND if there is no room to store
+      if((pTemplateEnd + 1 < pTemplateStart + numBytesCopied) && (originalLen - (pTemplateStart + numBytesCopied - pTemplateEnd - 1) < len)) {
+        _cache.insert(_cache.begin(), &data[originalLen - (pTemplateStart + numBytesCopied - pTemplateEnd - 1)], &data[len]);
+        //2. parameter value is longer than placeholder text, push the data after placeholder which not saved into cache further to the end
+        memmove(pTemplateStart + numBytesCopied, pTemplateEnd + 1, &data[originalLen] - pTemplateStart - numBytesCopied);
+        len = originalLen; // fix issue with truncated data, not sure if it has any side effects
+      } else if(pTemplateEnd + 1 != pTemplateStart + numBytesCopied)
+        //2. Either parameter value is shorter than placeholder text OR there is enough free space in buffer to fit.
+        //   Move the entire data after the placeholder
+        memmove(pTemplateStart + numBytesCopied, pTemplateEnd + 1, &data[len] - pTemplateEnd - 1);
+      // 3. replace placeholder with actual value
+      memcpy(pTemplateStart, pvstr, numBytesCopied);
+      // If result is longer than buffer, copy the remainder into cache (this could happen only if placeholder text itself did not fit entirely in buffer)
+      if(numBytesCopied < pvlen) {
+        _cache.insert(_cache.begin(), pvstr + numBytesCopied, pvstr + pvlen);
+      } else if(pTemplateStart + numBytesCopied < pTemplateEnd + 1) { // result is copied fully; if result is shorter than placeholder text...
+        // there is some free room, fill it from cache
+        const size_t roomFreed = pTemplateEnd + 1 - pTemplateStart - numBytesCopied;
+        const size_t totalFreeRoom = originalLen - len + roomFreed;
+        len += _readDataFromCacheOrContent(&data[len - roomFreed], totalFreeRoom) - roomFreed;
+      } else { // result is copied fully; it is longer than placeholder text
+        const size_t roomTaken = pTemplateStart + numBytesCopied - pTemplateEnd - 1;
+        len = std::min(len + roomTaken, originalLen);
+      }
+    }
+  } // while(pTemplateStart)
+  return len;
+}
+
+
+/*
+ * File Response
+ * */
+
+AsyncFileResponse::~AsyncFileResponse(){
+  if(_content)
+    _content.close();
+}
+
+void AsyncFileResponse::_setContentType(const String& path){
+  if (path.endsWith(".html")) _contentType = "text/html";
+  else if (path.endsWith(".htm")) _contentType = "text/html";
+  else if (path.endsWith(".css")) _contentType = "text/css";
+  else if (path.endsWith(".json")) _contentType = "application/json";
+  else if (path.endsWith(".js")) _contentType = "application/javascript";
+  else if (path.endsWith(".png")) _contentType = "image/png";
+  else if (path.endsWith(".gif")) _contentType = "image/gif";
+  else if (path.endsWith(".jpg")) _contentType = "image/jpeg";
+  else if (path.endsWith(".ico")) _contentType = "image/x-icon";
+  else if (path.endsWith(".svg")) _contentType = "image/svg+xml";
+  else if (path.endsWith(".eot")) _contentType = "font/eot";
+  else if (path.endsWith(".woff")) _contentType = "font/woff";
+  else if (path.endsWith(".woff2")) _contentType = "font/woff2";
+  else if (path.endsWith(".ttf")) _contentType = "font/ttf";
+  else if (path.endsWith(".xml")) _contentType = "text/xml";
+  else if (path.endsWith(".pdf")) _contentType = "application/pdf";
+  else if (path.endsWith(".zip")) _contentType = "application/zip";
+  else if(path.endsWith(".gz")) _contentType = "application/x-gzip";
+  else _contentType = "text/plain";
+}
+
+AsyncFileResponse::AsyncFileResponse(FS &fs, const String& path, const String& contentType, bool download, AwsTemplateProcessor callback): AsyncAbstractResponse(callback){
+  _code = 200;
+  _path = path;
+
+  if(!download && !fs.exists(_path) && fs.exists(_path+".gz")){
+    _path = _path+".gz";
+    addHeader("Content-Encoding", "gzip");
+    _callback = nullptr; // Unable to process zipped templates
+    _sendContentLength = true;
+    _chunked = false;
+  }
+
+  _content = fs.open(_path, "r");
+  _contentLength = _content.size();
+
+  if(contentType == "")
+    _setContentType(path);
+  else
+    _contentType = contentType;
+
+  int filenameStart = path.lastIndexOf('/') + 1;
+  char buf[26+path.length()-filenameStart];
+  char* filename = (char*)path.c_str() + filenameStart;
+
+  if(download) {
+    // set filename and force download
+    snprintf(buf, sizeof (buf), "attachment; filename=\"%s\"", filename);
+  } else {
+    // set filename and force rendering
+    snprintf(buf, sizeof (buf), "inline; filename=\"%s\"", filename);
+  }
+  addHeader("Content-Disposition", buf);
+}
+
+AsyncFileResponse::AsyncFileResponse(File content, const String& path, const String& contentType, bool download, AwsTemplateProcessor callback): AsyncAbstractResponse(callback){
+  _code = 200;
+  _path = path;
+
+  if(!download && String(content.name()).endsWith(".gz") && !path.endsWith(".gz")){
+    addHeader("Content-Encoding", "gzip");
+    _callback = nullptr; // Unable to process gzipped templates
+    _sendContentLength = true;
+    _chunked = false;
+  }
+
+  _content = content;
+  _contentLength = _content.size();
+
+  if(contentType == "")
+    _setContentType(path);
+  else
+    _contentType = contentType;
+
+  int filenameStart = path.lastIndexOf('/') + 1;
+  char buf[26+path.length()-filenameStart];
+  char* filename = (char*)path.c_str() + filenameStart;
+
+  if(download) {
+    snprintf(buf, sizeof (buf), "attachment; filename=\"%s\"", filename);
+  } else {
+    snprintf(buf, sizeof (buf), "inline; filename=\"%s\"", filename);
+  }
+  addHeader("Content-Disposition", buf);
+}
+
+size_t AsyncFileResponse::_fillBuffer(uint8_t *data, size_t len){
+  return _content.read(data, len);
+}
+
+/*
+ * Stream Response
+ * */
+
+AsyncStreamResponse::AsyncStreamResponse(Stream &stream, const String& contentType, size_t len, AwsTemplateProcessor callback): AsyncAbstractResponse(callback) {
+  _code = 200;
+  _content = &stream;
+  _contentLength = len;
+  _contentType = contentType;
+}
+
+size_t AsyncStreamResponse::_fillBuffer(uint8_t *data, size_t len){
+  size_t available = _content->available();
+  size_t outLen = (available > len)?len:available;
+  size_t i;
+  for(i=0;i<outLen;i++)
+    data[i] = _content->read();
+  return outLen;
+}
+
+/*
+ * Callback Response
+ * */
+
+AsyncCallbackResponse::AsyncCallbackResponse(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback): AsyncAbstractResponse(templateCallback) {
+  _code = 200;
+  _content = callback;
+  _contentLength = len;
+  if(!len)
+    _sendContentLength = false;
+  _contentType = contentType;
+  _filledLength = 0;
+}
+
+size_t AsyncCallbackResponse::_fillBuffer(uint8_t *data, size_t len){
+  size_t ret = _content(data, len, _filledLength);
+  if(ret != RESPONSE_TRY_AGAIN){
+      _filledLength += ret;
+  }
+  return ret;
+}
+
+/*
+ * Chunked Response
+ * */
+
+AsyncChunkedResponse::AsyncChunkedResponse(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor processorCallback): AsyncAbstractResponse(processorCallback) {
+  _code = 200;
+  _content = callback;
+  _contentLength = 0;
+  _contentType = contentType;
+  _sendContentLength = false;
+  _chunked = true;
+  _filledLength = 0;
+}
+
+size_t AsyncChunkedResponse::_fillBuffer(uint8_t *data, size_t len){
+  size_t ret = _content(data, len, _filledLength);
+  if(ret != RESPONSE_TRY_AGAIN){
+      _filledLength += ret;
+  }
+  return ret;
+}
+
+/*
+ * Progmem Response
+ * */
+
+AsyncProgmemResponse::AsyncProgmemResponse(int code, const String& contentType, const uint8_t * content, size_t len, AwsTemplateProcessor callback): AsyncAbstractResponse(callback) {
+  _code = code;
+  _content = content;
+  _contentType = contentType;
+  _contentLength = len;
+  _readLength = 0;
+}
+
+size_t AsyncProgmemResponse::_fillBuffer(uint8_t *data, size_t len){
+  size_t left = _contentLength - _readLength;
+  if (left > len) {
+    memcpy_P(data, _content + _readLength, len);
+    _readLength += len;
+    return len;
+  }
+  memcpy_P(data, _content + _readLength, left);
+  _readLength += left;
+  return left;
+}
+
+
+/*
+ * Response Stream (You can print/write/printf to it, up to the contentLen bytes)
+ * */
+
+AsyncResponseStream::AsyncResponseStream(const String& contentType, size_t bufferSize){
+  _code = 200;
+  _contentLength = 0;
+  _contentType = contentType;
+  _content = new cbuf(bufferSize);
+}
+
+AsyncResponseStream::~AsyncResponseStream(){
+  delete _content;
+}
+
+size_t AsyncResponseStream::_fillBuffer(uint8_t *buf, size_t maxLen){
+  return _content->read((char*)buf, maxLen);
+}
+
+size_t AsyncResponseStream::write(const uint8_t *data, size_t len){
+  if(_started())
+    return 0;
+
+  if(len > _content->room()){
+    size_t needed = len - _content->room();
+    _content->resizeAdd(needed);
+  }
+  size_t written = _content->write((const char*)data, len);
+  _contentLength += written;
+  return written;
+}
+
+size_t AsyncResponseStream::write(uint8_t data){
+  return write(&data, 1);
+}

Lib_backup/WebServer.cpp

@@ -0,0 +1,193 @@
+/*
+  Asynchronous WebServer library for Espressif MCUs
+
+  Copyright (c) 2016 Hristo Gochkov. All rights reserved.
+  This file is part of the esp8266 core for Arduino environment.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#include "ESPAsyncWebServer.h"
+#include "WebHandlerImpl.h"
+
+bool ON_STA_FILTER(AsyncWebServerRequest *request) {
+  return WiFi.localIP() == request->client()->localIP();
+}
+
+bool ON_AP_FILTER(AsyncWebServerRequest *request) {
+  return WiFi.localIP() != request->client()->localIP();
+}
+
+
+AsyncWebServer::AsyncWebServer(uint16_t port)
+  : _server(port)
+  , _rewrites(LinkedList<AsyncWebRewrite*>([](AsyncWebRewrite* r){ delete r; }))
+  , _handlers(LinkedList<AsyncWebHandler*>([](AsyncWebHandler* h){ delete h; }))
+{
+  _catchAllHandler = new AsyncCallbackWebHandler();
+  if(_catchAllHandler == NULL)
+    return;
+  _server.onClient([](void *s, AsyncClient* c){
+    if(c == NULL)
+      return;
+    c->setRxTimeout(3);
+    AsyncWebServerRequest *r = new AsyncWebServerRequest((AsyncWebServer*)s, c);
+    if(r == NULL){
+      c->close(true);
+      c->free();
+      delete c;
+    }
+  }, this);
+}
+
+AsyncWebServer::~AsyncWebServer(){
+  reset();  
+  end();
+  if(_catchAllHandler) delete _catchAllHandler;
+}
+
+AsyncWebRewrite& AsyncWebServer::addRewrite(AsyncWebRewrite* rewrite){
+  _rewrites.add(rewrite);
+  return *rewrite;
+}
+
+bool AsyncWebServer::removeRewrite(AsyncWebRewrite *rewrite){
+  return _rewrites.remove(rewrite);
+}
+
+AsyncWebRewrite& AsyncWebServer::rewrite(const char* from, const char* to){
+  return addRewrite(new AsyncWebRewrite(from, to));
+}
+
+AsyncWebHandler& AsyncWebServer::addHandler(AsyncWebHandler* handler){
+  _handlers.add(handler);
+  return *handler;
+}
+
+bool AsyncWebServer::removeHandler(AsyncWebHandler *handler){
+  return _handlers.remove(handler);
+}
+
+void AsyncWebServer::begin(){
+  _server.setNoDelay(true);
+  _server.begin();
+}
+
+void AsyncWebServer::end(){
+  _server.end();
+}
+
+#if ASYNC_TCP_SSL_ENABLED
+void AsyncWebServer::onSslFileRequest(AcSSlFileHandler cb, void* arg){
+  _server.onSslFileRequest(cb, arg);
+}
+
+void AsyncWebServer::beginSecure(const char *cert, const char *key, const char *password){
+  _server.beginSecure(cert, key, password);
+}
+#endif
+
+void AsyncWebServer::_handleDisconnect(AsyncWebServerRequest *request){
+  delete request;
+}
+
+void AsyncWebServer::_rewriteRequest(AsyncWebServerRequest *request){
+  for(const auto& r: _rewrites){
+    if (r->match(request)){
+      request->_url = r->toUrl();
+      request->_addGetParams(r->params());
+    }
+  }
+}
+
+void AsyncWebServer::_attachHandler(AsyncWebServerRequest *request){
+  for(const auto& h: _handlers){
+    if (h->filter(request) && h->canHandle(request)){
+      request->setHandler(h);
+      return;
+    }
+  }
+  
+  request->addInterestingHeader("ANY");
+  request->setHandler(_catchAllHandler);
+}
+
+
+AsyncCallbackWebHandler& AsyncWebServer::on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest, ArUploadHandlerFunction onUpload, ArBodyHandlerFunction onBody){
+  AsyncCallbackWebHandler* handler = new AsyncCallbackWebHandler();
+  handler->setUri(uri);
+  handler->setMethod(method);
+  handler->onRequest(onRequest);
+  handler->onUpload(onUpload);
+  handler->onBody(onBody);
+  addHandler(handler);
+  return *handler;
+}
+
+AsyncCallbackWebHandler& AsyncWebServer::on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest, ArUploadHandlerFunction onUpload){
+  AsyncCallbackWebHandler* handler = new AsyncCallbackWebHandler();
+  handler->setUri(uri);
+  handler->setMethod(method);
+  handler->onRequest(onRequest);
+  handler->onUpload(onUpload);
+  addHandler(handler);
+  return *handler;
+}
+
+AsyncCallbackWebHandler& AsyncWebServer::on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest){
+  AsyncCallbackWebHandler* handler = new AsyncCallbackWebHandler();
+  handler->setUri(uri);
+  handler->setMethod(method);
+  handler->onRequest(onRequest);
+  addHandler(handler);
+  return *handler;
+}
+
+AsyncCallbackWebHandler& AsyncWebServer::on(const char* uri, ArRequestHandlerFunction onRequest){
+  AsyncCallbackWebHandler* handler = new AsyncCallbackWebHandler();
+  handler->setUri(uri);
+  handler->onRequest(onRequest);
+  addHandler(handler);
+  return *handler;
+}
+
+AsyncStaticWebHandler& AsyncWebServer::serveStatic(const char* uri, fs::FS& fs, const char* path, const char* cache_control){
+  AsyncStaticWebHandler* handler = new AsyncStaticWebHandler(uri, fs, path, cache_control);
+  addHandler(handler);
+  return *handler;
+}
+
+void AsyncWebServer::onNotFound(ArRequestHandlerFunction fn){
+  _catchAllHandler->onRequest(fn);
+}
+
+void AsyncWebServer::onFileUpload(ArUploadHandlerFunction fn){
+  _catchAllHandler->onUpload(fn);
+}
+
+void AsyncWebServer::onRequestBody(ArBodyHandlerFunction fn){
+  _catchAllHandler->onBody(fn);
+}
+
+void AsyncWebServer::reset(){
+  _rewrites.free();
+  _handlers.free();
+  
+  if (_catchAllHandler != NULL){
+    _catchAllHandler->onRequest(NULL);
+    _catchAllHandler->onUpload(NULL);
+    _catchAllHandler->onBody(NULL);
+  }
+}
+

Lib_backup/edit.htm

@@ -0,0 +1,627 @@
+<!--This is the plain html source of the hex encoded Editor-Page embedded in SPIFFSEditor.cpp -->
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<title>ESP Editor</title>
+<style type="text/css" media="screen">
+.cm {
+  z-index: 300;
+  position: absolute;
+  left: 5px;
+  border: 1px solid #444;
+  background-color: #F5F5F5;
+  display: none;
+  box-shadow: 0 0 10px rgba( 0, 0, 0, .4 );
+  font-size: 12px;
+  font-family: sans-serif;
+  font-weight:bold;
+}
+.cm ul {
+  list-style: none;
+  top: 0;
+  left: 0;
+  margin: 0;
+  padding: 0;
+}
+.cm li {
+  position: relative;
+  min-width: 60px;
+  cursor: pointer;
+}
+.cm span {
+  color: #444;
+  display: inline-block;
+  padding: 6px;
+}
+.cm li:hover { background: #444; }
+.cm li:hover span { color: #EEE; }
+.tvu ul, .tvu li {
+  padding: 0;
+  margin: 0;
+  list-style: none;
+}
+.tvu input {
+  position: absolute;
+  opacity: 0;
+}
+.tvu {
+  font: normal 12px Verdana, Arial, Sans-serif;
+  -moz-user-select: none;
+  -webkit-user-select: none;
+  user-select: none;
+  color: #444;
+  line-height: 16px;
+}
+.tvu span {
+  margin-bottom:5px;
+  padding: 0 0 0 18px;
+  cursor: pointer;
+  display: inline-block;
+  height: 16px;
+  vertical-align: middle;
+  background: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAQAAAC1+jfqAAAABGdBTUEAAK/INwWK6QAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAADoSURBVBgZBcExblNBGAbA2ceegTRBuIKOgiihSZNTcC5LUHAihNJR0kGKCDcYJY6D3/77MdOinTvzAgCw8ysThIvn/VojIyMjIyPP+bS1sUQIV2s95pBDDvmbP/mdkft83tpYguZq5Jh/OeaYh+yzy8hTHvNlaxNNczm+la9OTlar1UdA/+C2A4trRCnD3jS8BB1obq2Gk6GU6QbQAS4BUaYSQAf4bhhKKTFdAzrAOwAxEUAH+KEM01SY3gM6wBsEAQB0gJ+maZoC3gI6iPYaAIBJsiRmHU0AALOeFC3aK2cWAACUXe7+AwO0lc9eTHYTAAAAAElFTkSuQmCC') no-repeat;
+  background-position: 0px 0px;
+}
+.tvu span:hover {
+  text-decoration: underline;
+}
+@media screen and (-webkit-min-device-pixel-ratio:0){
+  .tvu{
+    -webkit-animation: webkit-adjacent-element-selector-bugfix infinite 1s;
+  }
+
+  @-webkit-keyframes webkit-adjacent-element-selector-bugfix {
+    from { 
+      padding: 0;
+    } 
+    to { 
+      padding: 0;
+    }
+  }
+}
+#uploader { 
+  position: absolute;
+  top: 0;
+  right: 0;
+  left: 0;
+  height:28px;
+  line-height: 24px;
+  padding-left: 10px;
+  background-color: #444;
+  color:#EEE;
+}
+#tree { 
+  position: absolute;
+  top: 28px;
+  bottom: 0;
+  left: 0;
+  width:160px;
+  padding: 8px;
+}
+#editor, #preview { 
+  position: absolute;
+  top: 28px;
+  right: 0;
+  bottom: 0;
+  left: 160px;
+  border-left:1px solid #EEE;
+}
+#preview {
+  background-color: #EEE;
+  padding:5px;
+}
+#loader { 
+  position: absolute;
+  top: 36%;
+  right: 40%;
+}
+.loader {
+    z-index: 10000;
+    border: 8px solid #b5b5b5; /* Grey */
+    border-top: 8px solid #3498db; /* Blue */
+    border-bottom: 8px solid #3498db; /* Blue */
+    border-radius: 50%;
+    width: 240px;
+    height: 240px;
+    animation: spin 2s linear infinite;
+    display:none;
+}
+
+@keyframes spin {
+    0% { transform: rotate(0deg); }
+    100% { transform: rotate(360deg); }
+}
+</style>
+<script>
+if (typeof XMLHttpRequest === "undefined") {
+  XMLHttpRequest = function () {
+    try { return new ActiveXObject("Msxml2.XMLHTTP.6.0"); } catch (e) {}
+    try { return new ActiveXObject("Msxml2.XMLHTTP.3.0"); } catch (e) {}
+    try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {}
+    throw new Error("This browser does not support XMLHttpRequest.");
+  };
+}
+
+function ge(a){
+  return document.getElementById(a);
+}
+function ce(a){
+  return document.createElement(a);
+}
+
+function sortByKey(array, key) {
+  return array.sort(function(a, b) {
+    var x = a[key]; var y = b[key];
+    return ((x < y) ? -1 : ((x > y) ? 1 : 0));
+  });
+}
+
+
+var QueuedRequester = function () {
+  this.queue = [];
+  this.running = false;
+  this.xmlhttp = null;
+}
+QueuedRequester.prototype = {
+  _request: function(req){
+    this.running = true;
+    if(!req instanceof Object) return;
+    var that = this;
+    
+    function ajaxCb(x,d){ return function(){
+      if (x.readyState == 4){
+        ge("loader").style.display = "none";
+        d.callback(x.status, x.responseText);
+        if(that.queue.length === 0) that.running = false;
+        if(that.running) that._request(that.queue.shift());
+      }
+    }}
+    
+    ge("loader").style.display = "block";
+    
+    var p = "";
+    if(req.params instanceof FormData){
+      p = req.params;
+    } else if(req.params instanceof Object){
+      for (var key in req.params) {
+        if(p === "")
+          p += (req.method === "GET")?"?":"";
+        else
+          p += "&";
+        p += encodeURIComponent(key)+"="+encodeURIComponent(req.params[key]);
+      };
+    }
+    
+    this.xmlhttp = new XMLHttpRequest();
+    this.xmlhttp.onreadystatechange = ajaxCb(this.xmlhttp, req);
+    if(req.method === "GET"){
+      this.xmlhttp.open(req.method, req.url+p, true);
+      this.xmlhttp.send();
+    } else {
+      this.xmlhttp.open(req.method, req.url, true);
+      if(p instanceof String)
+        this.xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
+      this.xmlhttp.send(p);
+    }
+  },
+  stop: function(){
+    if(this.running) this.running = false;
+    if(this.xmlhttp && this.xmlhttp.readyState < 4){
+      this.xmlhttp.abort();
+    }
+  },
+  add: function(method, url, params, callback){
+    this.queue.push({url:url,method:method,params:params,callback:callback});
+    if(!this.running){
+      this._request(this.queue.shift());
+    }
+  }
+}
+
+var requests = new QueuedRequester();
+
+function createFileUploader(element, tree, editor){
+  var xmlHttp;
+  
+  var refresh = ce("button");
+  refresh.innerHTML = 'Refresh List';
+  ge(element).appendChild(refresh);
+
+  var input = ce("input");
+  input.type = "file";
+  input.multiple = false;
+  input.name = "data";
+  input.id="upload-select";
+  ge(element).appendChild(input);
+  
+  var path = ce("input");
+  path.id = "upload-path";
+  path.type = "text";
+  path.name = "path";
+  path.defaultValue = "/";
+  ge(element).appendChild(path);
+  
+  var button = ce("button");
+  button.innerHTML = 'Upload';
+  ge(element).appendChild(button);
+  
+  var mkfile = ce("button");
+  mkfile.innerHTML = 'Create';
+  ge(element).appendChild(mkfile);
+
+  var filename     = ce("input");
+  filename.id      = "editor-filename";
+  filename.type    = "text";
+  filename.disabled= true;
+  filename.size    = 20;
+  ge(element).appendChild(filename);
+
+  var savefile = ce("button");
+  savefile.innerHTML = ' Save ' ;
+  ge(element).appendChild(savefile);
+
+  function httpPostProcessRequest(status, responseText){
+    if(status != 200)
+      alert("ERROR["+status+"]: "+responseText);
+    else
+      tree.refreshPath(path.value);
+  }
+  function createPath(p){
+    var formData = new FormData();
+    formData.append("path", p);
+    requests.add("PUT", "/edit", formData, httpPostProcessRequest);
+  }
+  
+  mkfile.onclick = function(e){
+    createPath(path.value);
+    editor.loadUrl(path.value);
+    path.value="/";
+  };
+
+  savefile.onclick = function(e){
+    editor.execCommand('saveCommand');
+  };
+  
+  refresh.onclick = function(e){
+    tree.refreshPath(path.value);
+  };
+  
+  button.onclick = function(e){
+    if(input.files.length === 0){
+      return;
+    }
+    var formData = new FormData();
+    formData.append("data", input.files[0], path.value);
+    requests.add("POST", "/edit", formData, httpPostProcessRequest);
+    var uploadPath= ge("upload-path");
+    uploadPath.value="/";
+    var uploadSelect= ge("upload-select");
+    uploadSelect.value="";
+  };
+  input.onchange = function(e){
+    if(input.files.length === 0) return;
+    var filename = input.files[0].name;
+    var ext = /(?:\.([^.]+))?$/.exec(filename)[1];
+    var name = /(.*)\.[^.]+$/.exec(filename)[1];
+    if(typeof name !== undefined){
+      filename = name;
+    }
+    path.value = "/"+filename+"."+ext;
+  };
+}
+
+function createTree(element, editor){
+  var preview = ge("preview");
+  var treeRoot = ce("div");
+  treeRoot.className = "tvu";
+  ge(element).appendChild(treeRoot);
+
+  function loadDownload(path){
+    ge('download-frame').src = "/edit?download="+path;
+  }
+
+  function loadPreview(path){
+    var edfname = ge("editor-filename");
+    edfname.value=path;
+    ge("editor").style.display = "none";
+    preview.style.display = "block";
+    preview.innerHTML = '<img src="/edit?edit='+path+'&_cb='+Date.now()+'" style="max-width:100%; max-height:100%; margin:auto; display:block;" />';
+  }
+
+  function fillFileMenu(el, path){
+    var list = ce("ul");
+    el.appendChild(list);
+    var action = ce("li");
+    list.appendChild(action);
+    if(isImageFile(path)){
+      action.innerHTML = "<span>Preview</span>";
+      action.onclick = function(e){
+        loadPreview(path);
+        if(document.body.getElementsByClassName('cm').length > 0) document.body.removeChild(el);
+      };
+    } else if(isTextFile(path)){
+      action.innerHTML = "<span>Edit</span>";
+      action.onclick = function(e){
+        editor.loadUrl(path);
+        if(document.body.getElementsByClassName('cm').length > 0) document.body.removeChild(el);
+      };
+    }
+    var download = ce("li");
+    list.appendChild(download);
+    download.innerHTML = "<span>Download</span>";
+    download.onclick = function(e){
+      loadDownload(path);
+      if(document.body.getElementsByClassName('cm').length > 0) document.body.removeChild(el);
+    };
+    var delFile = ce("li");
+    list.appendChild(delFile);
+    delFile.innerHTML = "<span>Delete</span>";
+    delFile.onclick = function(e){
+      httpDelete(path);
+      if(document.body.getElementsByClassName('cm').length > 0) document.body.removeChild(el);
+    };
+  }
+
+  function showContextMenu(event, path, isfile){
+    var divContext = ce("div");
+    var scrollTop = document.body.scrollTop ? document.body.scrollTop : document.documentElement.scrollTop;
+    var scrollLeft = document.body.scrollLeft ? document.body.scrollLeft : document.documentElement.scrollLeft;
+    var left = event.clientX + scrollLeft;
+    var top = event.clientY + scrollTop;
+    divContext.className = 'cm';
+    divContext.style.display = 'block';
+    divContext.style.left = left + 'px';
+    divContext.style.top = top + 'px';
+    fillFileMenu(divContext, path);
+    document.body.appendChild(divContext);
+    var width = divContext.offsetWidth;
+    var height = divContext.offsetHeight;
+    divContext.onmouseout = function(e){
+      if(e.clientX < left || e.clientX > (left + width) || e.clientY < top || e.clientY > (top + height)){
+        if(document.body.getElementsByClassName('cm').length > 0) document.body.removeChild(divContext);
+      }
+    };
+  }
+
+  function createTreeLeaf(path, name, size){
+    var leaf = ce("li");
+    leaf.id = name;
+    var label = ce("span");
+    label.innerHTML = name;
+    leaf.appendChild(label);
+    leaf.onclick = function(e){
+      if(isTextFile(leaf.id.toLowerCase())){
+        editor.loadUrl(leaf.id);
+      } else if(isImageFile(leaf.id.toLowerCase())){
+        loadPreview(leaf.id);
+      }
+    };
+    leaf.oncontextmenu = function(e){
+      e.preventDefault();
+      e.stopPropagation();
+      showContextMenu(e, leaf.id, true);
+    };
+    return leaf;
+  }
+
+  function addList(parent, path, items){
+    sortByKey(items, 'name');
+    var list = ce("ul");
+    parent.appendChild(list);
+    var ll = items.length;
+    for(var i = 0; i < ll; i++){
+      if(items[i].type === "file")
+        list.appendChild(createTreeLeaf(path, items[i].name, items[i].size));
+    }
+
+  }
+
+  function isTextFile(path){
+    var ext = /(?:\.([^.]+))?$/.exec(path)[1];
+    if(typeof ext !== undefined){
+      switch(ext){
+        case "txt":
+        case "htm":
+        case "html":
+        case "js":
+        case "css":
+        case "xml":
+        case "json":
+        case "conf":
+        case "ini":
+        case "h":
+        case "c":
+        case "cpp":
+        case "php":
+        case "hex":
+        case "ino":
+        case "pde":
+        return true;
+      }
+    }
+    return false;
+  }
+
+  function isImageFile(path){
+    var ext = /(?:\.([^.]+))?$/.exec(path)[1];
+    if(typeof ext !== undefined){
+      switch(ext){
+        case "png":
+        case "jpg":
+        case "gif":
+        case "bmp":
+        return true;
+      }
+    }
+    return false;
+  }
+
+  this.refreshPath = function(path){
+    treeRoot.removeChild(treeRoot.childNodes[0]);
+    httpGet(treeRoot, "/");
+  };
+
+  function delCb(path){
+    return function(status, responseText){
+      if(status != 200){
+        alert("ERROR["+status+"]: "+responseText);
+      } else {
+        treeRoot.removeChild(treeRoot.childNodes[0]);
+        httpGet(treeRoot, "/");
+      }
+    }
+  }
+
+  function httpDelete(filename){
+    var formData = new FormData();
+    formData.append("path", filename);
+    requests.add("DELETE", "/edit", formData, delCb(filename));
+  }
+
+  function getCb(parent, path){
+    return function(status, responseText){
+      if(status == 200)
+        addList(parent, path, JSON.parse(responseText));
+    }
+  }
+
+  function httpGet(parent, path){
+    requests.add("GET", "/edit", { list: path }, getCb(parent, path));
+  }
+
+  httpGet(treeRoot, "/");
+  return this;
+}
+
+function createEditor(element, file, lang, theme, type){
+  function getLangFromFilename(filename){
+    var lang = "plain";
+    var ext = /(?:\.([^.]+))?$/.exec(filename)[1];
+    if(typeof ext !== undefined){
+      switch(ext){
+        case "txt": lang = "plain"; break;
+        case "hex": lang = "plain"; break;
+        case "conf": lang = "plain"; break;
+        case "htm": lang = "html"; break;
+        case "js": lang = "javascript"; break;
+        case "h": lang = "c_cpp"; break;
+        case "c": lang = "c_cpp"; break;
+        case "cpp": lang = "c_cpp"; break;
+        case "css":
+        case "scss":
+        case "php":
+        case "html":
+        case "json":
+        case "xml":
+        case "ini":  lang = ext;
+      }
+    }
+    return lang;
+  }
+
+  if(typeof file === "undefined") file = "/index.html";
+
+  if(typeof lang === "undefined"){
+    lang = getLangFromFilename(file);
+  }
+
+  if(typeof theme === "undefined") theme = "textmate";
+
+  if(typeof type === "undefined"){
+    type = "text/"+lang;
+    if(lang === "c_cpp") type = "text/plain";
+  }
+
+  var editor = ace.edit(element);
+  function httpPostProcessRequest(status, responseText){
+    if(status != 200) alert("ERROR["+status+"]: "+responseText);
+  }
+  function httpPost(filename, data, type){
+    var formData = new FormData();
+    formData.append("data", new Blob([data], { type: type }), filename);
+    requests.add("POST", "/edit", formData, httpPostProcessRequest);
+  }
+  function httpGetProcessRequest(status, responseText){
+      ge("preview").style.display = "none";
+      ge("editor").style.display = "block";
+      if(status == 200)
+        editor.setValue(responseText);
+      else
+        editor.setValue("");
+      editor.clearSelection();
+  }
+  function httpGet(theUrl){
+      requests.add("GET", "/edit", { edit: theUrl }, httpGetProcessRequest);
+  }
+
+  if(lang !== "plain") editor.getSession().setMode("ace/mode/"+lang);
+  editor.setTheme("ace/theme/"+theme);
+  editor.$blockScrolling = Infinity;
+  editor.getSession().setUseSoftTabs(true);
+  editor.getSession().setTabSize(2);
+  editor.setHighlightActiveLine(true);
+  editor.setShowPrintMargin(false);
+  editor.commands.addCommand({
+      name: 'saveCommand',
+      bindKey: {win: 'Ctrl-S',  mac: 'Command-S'},
+      exec: function(editor) {
+        httpPost(file, editor.getValue()+"", type);
+      },
+      readOnly: false
+  });
+  editor.commands.addCommand({
+      name: 'undoCommand',
+      bindKey: {win: 'Ctrl-Z',  mac: 'Command-Z'},
+      exec: function(editor) {
+        editor.getSession().getUndoManager().undo(false);
+      },
+      readOnly: false
+  });
+  editor.commands.addCommand({
+      name: 'redoCommand',
+      bindKey: {win: 'Ctrl-Shift-Z',  mac: 'Command-Shift-Z'},
+      exec: function(editor) {
+        editor.getSession().getUndoManager().redo(false);
+      },
+      readOnly: false
+  });
+  editor.loadUrl = function(filename){
+    var edfname = ge("editor-filename");
+    edfname.value=filename;
+    file = filename;
+    lang = getLangFromFilename(file);
+    type = "text/"+lang;
+    if(lang !== "plain") editor.getSession().setMode("ace/mode/"+lang);
+    httpGet(file);
+  };
+  return editor;
+}
+function onBodyLoad(){
+  var vars = {};
+  var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m,key,value) { vars[key] = value; });
+  var editor = createEditor("editor", vars.file, vars.lang, vars.theme);
+  var tree = createTree("tree", editor);
+  createFileUploader("uploader", tree, editor);
+  if(typeof vars.file === "undefined") vars.file = "/index.htm";
+  editor.loadUrl(vars.file);
+};
+</script>
+<script id='ace' src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.2.6/ace.js" type="text/javascript" charset="utf-8"></script>
+<script>
+  if  (typeof ace.edit == "undefined") {
+    var script = document.createElement('script');
+    script.src = "/ace.js";
+    script.async = false;
+    document.head.appendChild(script);
+  }
+</script>
+</head>
+<body onload="onBodyLoad();">
+  <div id="loader" class="loader"></div>
+  <div id="uploader"></div>
+  <div id="tree"></div>
+  <div id="editor"></div>
+  <div id="preview" style="display:none;"></div>
+  <iframe id=download-frame style='display:none;'></iframe>
+</body>
+</html>

data/index.html

@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <meta charset="UTF-8"> <!-- For if you want to use "äöü" / Unicode -->
+    
+    <!-- Wichtig dass man auf den richtigen Ordner zeigt! -->
+    <link rel="icon" href="data:,">
+    <link rel="stylesheet" href="style.css">
+  </head>
+
+<body>
+    <p>Value : %STATE</p> <!-- This is how you implement the value you want to display from the main programm -->
+                          <!-- Important is that you put the "%" infront the keyword you want to check for. In this case, the keyword is "STATE"-->
+</body>
+
+<!-- You can display many values of course, just add more to the processor and call it in the main funktion. -->
+<!-- For performing effeciency, I would advice you to only hand 1 String over and work with "\n" and whatnot for styling reasons. -->
+
+<!-- Another thing worth noting is the issue the ESP32 has with displaying a png for example, even when it is properly linked in the -->
+<!-- .html and .css. And to be fair, it just struggles with displaying a full on png since it is not decoded yet. -->
+<!-- A way to solve this would be decoding your for example png of choice. How do you do that? -->
+<!-- Use an online converter to save time. Here is the one I used for a png in a project: https://www.base64-image.de/ -->
+<!-- You should receive a seemingly endless amount of text from it, copy and paste it in your html or css code and BOOM- there's the picture showing up. -->
+
+</html>

data/style.css

@@ -0,0 +1 @@
+/* Put your css stuff here, it should be no different than the usual as long as it's linked in the .html */

platformio.ini

@@ -12,9 +12,22 @@
 platform = espressif32
 board = upesy_wroom
 framework = arduino
-lib_deps = adafruit/Adafruit MPU6050@^2.2.6
+lib_deps = 
+	adafruit/Adafruit MPU6050@^2.2.6
+	esphome/ESPAsyncWebServer-esphome@^3.1.0
 
-; How to change bit-per-second rate for your project:
-; Add right under [env:upesy_wroom]:
-; "monitor_speed = x" (without the "")
-; x == baudrate of selected choice, bsp: 115200, 8000, 300
+; When using SPIFFS, we once more have to add something here:
+
+board_build.partitions = src/default_2MB.csv ; Replace after the "=" with the link to the csv file.
+                                             ; Which doesn't have to be in src if you dislike the src folder being too cramped.
+
+; Great! Now you have SPIFFS all set up and ready to use. 
+; But wait, the compilation fails?
+; Indeed it does. PlatformIO wants you to MANUALLY build the SPIFFS filesystem. 
+; Click on the PlatformIO Icon in the sidebar, and check out "Project tasks". From there, do these simple things step by step:
+; -> "upesy_wroom" (or whatever board image you are using) -> "Platform" -> "Build Filesystem Image"
+; Wait for the build to complete...
+; -> "Upload Filesystem Image"
+
+; And now you are done. The earlier steps I just described might not work when the .csv is incorrect or faulty, or too little / much memory is used.
+; If correcting the uploaded, click "Erase Flash" first before rebuilding and flashing the ESP new.

src/SPIFFSEditor.cpp

@@ -0,0 +1,544 @@
+#include <SPIFFSEditor.h>
+#include <FS.h>
+
+//File: edit.htm.gz, Size: 4151
+#define edit_htm_gz_len 4151
+const uint8_t edit_htm_gz[] PROGMEM = {
+ 0x1F, 0x8B, 0x08, 0x08, 0xB8, 0x94, 0xB1, 0x59, 0x00, 0x03, 0x65, 0x64, 0x69, 0x74, 0x2E, 0x68,
+ 0x74, 0x6D, 0x00, 0xB5, 0x3A, 0x0B, 0x7B, 0xDA, 0xB8, 0xB2, 0x7F, 0xC5, 0x71, 0xCF, 0x66, 0xED,
+ 0x83, 0x31, 0x90, 0xA4, 0xD9, 0xD6, 0xC4, 0xC9, 0x42, 0x92, 0x36, 0x6D, 0xF3, 0x6A, 0x80, 0xB6,
+ 0x69, 0x4F, 0xEE, 0x7E, 0xC2, 0x16, 0xA0, 0xC6, 0x96, 0x5D, 0x5B, 0x0E, 0x49, 0x59, 0xFE, 0xFB,
+ 0x9D, 0x91, 0x6C, 0xB0, 0x09, 0x69, 0x77, 0xCF, 0xBD, 0xBB, 0xDD, 0x2D, 0x92, 0x46, 0x33, 0x9A,
+ 0x19, 0xCD, 0x53, 0xDE, 0xBD, 0x8D, 0xA3, 0x8B, 0xC3, 0xFE, 0xF5, 0xE5, 0xB1, 0x36, 0x11, 0x61,
+ 0xB0, 0xBF, 0x87, 0x7F, 0x6B, 0x01, 0xE1, 0x63, 0x97, 0xF2, 0xFD, 0x3D, 0xC1, 0x44, 0x40, 0xF7,
+ 0x8F, 0x7B, 0x97, 0xDA, 0xB1, 0xCF, 0x44, 0x94, 0xEC, 0x35, 0xD4, 0xCA, 0x5E, 0x2A, 0x1E, 0x02,
+ 0xAA, 0x85, 0xD4, 0x67, 0xC4, 0x4D, 0xBD, 0x84, 0xC2, 0x66, 0xDB, 0x0B, 0x67, 0xDF, 0xEB, 0x8C,
+ 0xFB, 0xF4, 0xDE, 0xD9, 0x6E, 0x36, 0xDB, 0x71, 0x94, 0x32, 0xC1, 0x22, 0xEE, 0x90, 0x61, 0x1A,
+ 0x05, 0x99, 0xA0, 0xED, 0x80, 0x8E, 0x84, 0xF3, 0x3C, 0xBE, 0x6F, 0x0F, 0xA3, 0xC4, 0xA7, 0x89,
+ 0xD3, 0x8A, 0xEF, 0x35, 0x00, 0x31, 0x5F, 0x7B, 0xB6, 0xB3, 0xB3, 0xD3, 0x1E, 0x12, 0xEF, 0x76,
+ 0x9C, 0x44, 0x19, 0xF7, 0xEB, 0x5E, 0x14, 0x44, 0x89, 0xF3, 0x6C, 0xF4, 0x1C, 0xFF, 0xB4, 0x7D,
+ 0x96, 0xC6, 0x01, 0x79, 0x70, 0x78, 0xC4, 0x29, 0xE0, 0xDE, 0xD7, 0xD3, 0x09, 0xF1, 0xA3, 0xA9,
+ 0xD3, 0xD4, 0x9A, 0x5A, 0xAB, 0x09, 0x44, 0x92, 0xF1, 0x90, 0x18, 0x4D, 0x0B, 0xFF, 0xD8, 0x3B,
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+ 0x13, 0x5C, 0xD4, 0xD1, 0x13, 0xA0, 0x24, 0x83, 0x52, 0x34, 0x60, 0x2A, 0x2C, 0x37, 0xEE, 0xEB,
+ 0xD3, 0xE9, 0xB4, 0x8E, 0xDF, 0x6A, 0xEB, 0x70, 0x82, 0xB2, 0x02, 0x5F, 0x5F, 0xC7, 0x21, 0x47,
+ 0x15, 0x58, 0xF8, 0x6E, 0xE1, 0xAC, 0xBA, 0xE8, 0x42, 0x7F, 0x2B, 0xDE, 0xD4, 0xAA, 0xD2, 0x59,
+ 0xE1, 0x73, 0x79, 0xDB, 0x7B, 0x3B, 0x2B, 0x20, 0x32, 0xC4, 0xAF, 0xB2, 0x90, 0x69, 0x20, 0x0D,
+ 0x3B, 0xE5, 0x46, 0x56, 0x25, 0x85, 0x65, 0x5C, 0xB0, 0xE3, 0x2C, 0x9D, 0x18, 0x33, 0x60, 0xDD,
+ 0x11, 0x96, 0xD2, 0x95, 0x43, 0x2D, 0x65, 0xB7, 0x0E, 0xB7, 0x0A, 0xFB, 0x70, 0x30, 0x83, 0x94,
+ 0x79, 0xFB, 0xF3, 0x4F, 0x39, 0x5B, 0xDE, 0xF6, 0x92, 0x62, 0x71, 0xE1, 0xF3, 0xFC, 0xA9, 0x35,
+ 0xAF, 0x69, 0xA5, 0xD1, 0xAF, 0xC4, 0x97, 0xBD, 0x46, 0xFE, 0x19, 0x3B, 0xFF, 0x9C, 0xAD, 0x81,
+ 0xB1, 0x43, 0x23, 0x2A, 0xDC, 0x4C, 0x8C, 0xEA, 0x2F, 0x34, 0xE6, 0x63, 0x79, 0x29, 0xBF, 0x2D,
+ 0xA0, 0x54, 0xA9, 0xD3, 0x68, 0x78, 0x3E, 0xFF, 0x9A, 0x42, 0x19, 0x1D, 0x65, 0xFE, 0x28, 0x20,
+ 0x09, 0xC5, 0x82, 0xA3, 0x41, 0xBE, 0x92, 0xFB, 0x46, 0xC0, 0x86, 0x69, 0x03, 0x93, 0x6D, 0xCB,
+ 0xDE, 0xB2, 0x77, 0x71, 0x64, 0x7F, 0x4D, 0xF7, 0x57, 0x4F, 0xD8, 0x5F, 0x34, 0x69, 0x58, 0x0B,
+ 0xE7, 0xB5, 0xAB, 0x8A, 0x4D, 0x6A, 0x83, 0xFB, 0xC4, 0xA7, 0x70, 0x3D, 0x6F, 0xB3, 0xCC, 0xB6,
+ 0x1A, 0xE4, 0x5F, 0x60, 0xD4, 0x31, 0xBA, 0x95, 0x2F, 0x92, 0xF4, 0x81, 0x7B, 0x18, 0x5B, 0x17,
+ 0x54, 0x26, 0x70, 0x49, 0xD5, 0x87, 0x34, 0xB9, 0xD3, 0x9C, 0x2F, 0x39, 0xC3, 0xB7, 0x3C, 0xA8,
+ 0x03, 0xE4, 0x37, 0x9C, 0x72, 0x39, 0xB0, 0xBF, 0x07, 0x5D, 0x33, 0x2A, 0x41, 0x79, 0xB1, 0x26,
+ 0x9B, 0xE6, 0x7C, 0x02, 0x82, 0x01, 0x70, 0xB1, 0xA3, 0x48, 0xCD, 0x2B, 0xCB, 0x98, 0x9B, 0x57,
+ 0x96, 0x54, 0xE2, 0x5F, 0x59, 0xCC, 0xDB, 0x9F, 0xFC, 0xDB, 0x4C, 0xF9, 0x7F, 0x5B, 0x28, 0x36,
+ 0x32, 0xF9, 0xE1, 0x09, 0xF7, 0x56, 0x3F, 0x45, 0xAD, 0x47, 0x51, 0xBB, 0xF7, 0xFF, 0x17, 0x53,
+ 0xE8, 0x9D, 0x36, 0x92, 0x29, 0x00, 0x00
+};
+
+#define SPIFFS_MAXLENGTH_FILEPATH 32
+const char *excludeListFile = "/.exclude.files";
+
+typedef struct ExcludeListS {
+    char *item;
+    ExcludeListS *next;
+} ExcludeList;
+
+static ExcludeList *excludes = NULL;
+
+static bool matchWild(const char *pattern, const char *testee) {
+  const char *nxPat = NULL, *nxTst = NULL;
+
+  while (*testee) {
+    if (( *pattern == '?' ) || (*pattern == *testee)){
+      pattern++;testee++;
+      continue;
+    }
+    if (*pattern=='*'){
+      nxPat=pattern++; nxTst=testee;
+      continue;
+    }
+    if (nxPat){ 
+      pattern = nxPat+1; testee=++nxTst;
+      continue;
+    }
+    return false;
+  }
+  while (*pattern=='*'){pattern++;}  
+  return (*pattern == 0);
+}
+
+static bool addExclude(const char *item){
+    size_t len = strlen(item);
+    if(!len){
+        return false;
+    }
+    ExcludeList *e = (ExcludeList *)malloc(sizeof(ExcludeList));
+    if(!e){
+        return false;
+    }
+    e->item = (char *)malloc(len+1);
+    if(!e->item){
+        free(e);
+        return false;
+    }
+    memcpy(e->item, item, len+1);
+    e->next = excludes;
+    excludes = e;
+    return true;
+}
+
+static void loadExcludeList(fs::FS &_fs, const char *filename){
+    static char linebuf[SPIFFS_MAXLENGTH_FILEPATH];
+    fs::File excludeFile=_fs.open(filename, "r");
+    if(!excludeFile){
+        //addExclude("/*.js.gz");
+        return;
+    }
+#ifdef ESP32
+    if(excludeFile.isDirectory()){
+      excludeFile.close();
+      return;
+    }
+#endif
+    if (excludeFile.size() > 0){
+      uint8_t idx;
+      bool isOverflowed = false;
+      while (excludeFile.available()){
+        linebuf[0] = '\0';
+        idx = 0;
+        int lastChar;
+        do {
+          lastChar = excludeFile.read();
+          if(lastChar != '\r'){
+            linebuf[idx++] = (char) lastChar;
+          }
+        } while ((lastChar >= 0) && (lastChar != '\n') && (idx < SPIFFS_MAXLENGTH_FILEPATH));
+
+        if(isOverflowed){
+          isOverflowed = (lastChar != '\n');
+          continue;
+        }
+        isOverflowed = (idx >= SPIFFS_MAXLENGTH_FILEPATH);
+        linebuf[idx-1] = '\0';
+        if(!addExclude(linebuf)){
+            excludeFile.close();
+            return;
+        }
+      }
+    }
+    excludeFile.close();
+}
+
+static bool isExcluded(fs::FS &_fs, const char *filename) {
+  if(excludes == NULL){
+      loadExcludeList(_fs, excludeListFile);
+  }
+  ExcludeList *e = excludes;
+  while(e){
+    if (matchWild(e->item, filename)){
+      return true;
+    }
+    e = e->next;
+  }
+  return false;
+}
+
+// WEB HANDLER IMPLEMENTATION
+
+#ifdef ESP32
+SPIFFSEditor::SPIFFSEditor(const fs::FS& fs, const String& username, const String& password)
+#else
+SPIFFSEditor::SPIFFSEditor(const String& username, const String& password, const fs::FS& fs)
+#endif
+:_fs(fs)
+,_username(username)
+,_password(password)
+,_authenticated(false)
+,_startTime(0)
+{}
+
+bool SPIFFSEditor::canHandle(AsyncWebServerRequest *request){
+  if(request->url().equalsIgnoreCase("/edit")){
+    if(request->method() == HTTP_GET){
+      if(request->hasParam("list"))
+        return true;
+      if(request->hasParam("edit")){
+        request->_tempFile = _fs.open(request->arg("edit"), "r");
+        if(!request->_tempFile){
+          return false;
+        }
+#ifdef ESP32
+        if(request->_tempFile.isDirectory()){
+          request->_tempFile.close();
+          return false;
+        }
+#endif
+      }
+      if(request->hasParam("download")){
+        request->_tempFile = _fs.open(request->arg("download"), "r");
+        if(!request->_tempFile){
+          return false;
+        }
+#ifdef ESP32
+        if(request->_tempFile.isDirectory()){
+          request->_tempFile.close();
+          return false;
+        }
+#endif
+      }
+      request->addInterestingHeader("If-Modified-Since");
+      return true;
+    }
+    else if(request->method() == HTTP_POST)
+      return true;
+    else if(request->method() == HTTP_DELETE)
+      return true;
+    else if(request->method() == HTTP_PUT)
+      return true;
+
+  }
+  return false;
+}
+
+
+void SPIFFSEditor::handleRequest(AsyncWebServerRequest *request){
+  if(_username.length() && _password.length() && !request->authenticate(_username.c_str(), _password.c_str()))
+    return request->requestAuthentication();
+
+  if(request->method() == HTTP_GET){
+    if(request->hasParam("list")){
+      String path = request->getParam("list")->value();
+#ifdef ESP32
+      File dir = _fs.open(path);
+#else
+      Dir dir = _fs.openDir(path);
+#endif
+      path = String();
+      String output = "[";
+#ifdef ESP32
+      File entry = dir.openNextFile();
+      while(entry){
+#else
+      while(dir.next()){
+        fs::File entry = dir.openFile("r");
+#endif
+        if (isExcluded(_fs, entry.name())) {
+#ifdef ESP32
+            entry = dir.openNextFile();
+#endif
+            continue;
+        }
+        if (output != "[") output += ',';
+        output += "{\"type\":\"";
+        output += "file";
+        output += "\",\"name\":\"";
+        output += String(entry.name());
+        output += "\",\"size\":";
+        output += String(entry.size());
+        output += "}";
+#ifdef ESP32
+        entry = dir.openNextFile();
+#else
+        entry.close();
+#endif
+      }
+#ifdef ESP32
+      dir.close();
+#endif
+      output += "]";
+      request->send(200, "application/json", output);
+      output = String();
+    }
+    else if(request->hasParam("edit") || request->hasParam("download")){
+      request->send(request->_tempFile, request->_tempFile.name(), String(), request->hasParam("download"));
+    }
+    else {
+      const char * buildTime = __DATE__ " " __TIME__ " GMT";
+      if (request->header("If-Modified-Since").equals(buildTime)) {
+        request->send(304);
+      } else {
+        AsyncWebServerResponse *response = request->beginResponse_P(200, "text/html", edit_htm_gz, edit_htm_gz_len);
+        response->addHeader("Content-Encoding", "gzip");
+        response->addHeader("Last-Modified", buildTime);
+        request->send(response);
+      }
+    }
+  } else if(request->method() == HTTP_DELETE){
+    if(request->hasParam("path", true)){
+        _fs.remove(request->getParam("path", true)->value());
+      request->send(200, "", "DELETE: "+request->getParam("path", true)->value());
+    } else
+      request->send(404);
+  } else if(request->method() == HTTP_POST){
+    if(request->hasParam("data", true, true) && _fs.exists(request->getParam("data", true, true)->value()))
+      request->send(200, "", "UPLOADED: "+request->getParam("data", true, true)->value());
+    else
+      request->send(500);
+  } else if(request->method() == HTTP_PUT){
+    if(request->hasParam("path", true)){
+      String filename = request->getParam("path", true)->value();
+      if(_fs.exists(filename)){
+        request->send(200);
+      } else {
+        fs::File f = _fs.open(filename, "w");
+        if(f){
+          f.write((uint8_t)0x00);
+          f.close();
+          request->send(200, "", "CREATE: "+filename);
+        } else {
+          request->send(500);
+        }
+      }
+    } else
+      request->send(400);
+  }
+}
+
+void SPIFFSEditor::handleUpload(AsyncWebServerRequest *request, const String& filename, size_t index, uint8_t *data, size_t len, bool final){
+  if(!index){
+    if(!_username.length() || request->authenticate(_username.c_str(),_password.c_str())){
+      _authenticated = true;
+      request->_tempFile = _fs.open(filename, "w");
+      _startTime = millis();
+    }
+  }
+  if(_authenticated && request->_tempFile){
+    if(len){
+      request->_tempFile.write(data,len);
+    }
+    if(final){
+      request->_tempFile.close();
+    }
+  }
+}

src/SPIFFSEditor.h

@@ -0,0 +1,24 @@
+#ifndef SPIFFSEditor_H_
+#define SPIFFSEditor_H_
+#include <ESPAsyncWebServer.h>
+
+class SPIFFSEditor: public AsyncWebHandler {
+  private:
+    fs::FS _fs;
+    String _username;
+    String _password; 
+    bool _authenticated;
+    uint32_t _startTime;
+  public:
+#ifdef ESP32
+    SPIFFSEditor(const fs::FS& fs, const String& username=String(), const String& password=String());
+#else
+    SPIFFSEditor(const String& username=String(), const String& password=String(), const fs::FS& fs=SPIFFS);
+#endif
+    virtual bool canHandle(AsyncWebServerRequest *request) override final;
+    virtual void handleRequest(AsyncWebServerRequest *request) override final;
+    virtual void handleUpload(AsyncWebServerRequest *request, const String& filename, size_t index, uint8_t *data, size_t len, bool final) override final;
+    virtual bool isRequestHandlerTrivial() override final {return false;}
+};
+
+#endif

src/default_2MB.csv

@@ -0,0 +1,43 @@
+# Name,   Type, SubType, Offset,  Size, Flags
+nvs,      data, nvs,     0x9000,  0x5000,
+#otadata,  data, ota,     0xe000,  0x2000,
+app0,     app,  ota_0,   0x10000, 0x130000,
+#app1,     app,  ota_1,   0x150000, 0x140000,
+spiffs,   data, spiffs,  , 0x200000,
+coredump, data, coredump, , 0x10000
+
+# Now... you might think to yourself: "What the hell am I seeing?"
+# To that, I have an answer. Here the flash memory is parted and divided for your ESP. What you are seeing in this file
+# is not the default for how the ESP partitioned, and only should be used for the ESP32 S1 for now since it has 2MB flash memory.
+# If you're feeling extremely motivated, you can add memory by adding hardware to the ESP, but for your usual Website hosting, this should
+# be more than enough.
+# If needed, adjust the Size limit to free or gain more memory.
+
+# Now, how do you work with this...
+# You can erase the ones listed or comment them out with "#" if you'd like to free the memory again and make it available for other uses.
+# Be careful with that, as some of these partitions are necessary for your programm to work and be saved as well. (app0 !!!!!)
+# "coredump" might also be necessary since all the errors might cause issues otherwise.
+# Everything else is replaceable, delete-ble, and not as important. Such as "otadata", which is not something you need if you constantly install
+# your programm via Serial communication over the USB (default for cable, else possible over Wlan).
+
+# The Offset can be entirely unimportant if you leave it blank, as it's where a memory begins, and just automatically fills if you don't put a value in.
+# Size is how much memory you want to allocate, but I'd advice you to keep each as more short and compact and shortened to what is needed, aside from "app0".
+# SPIFFS is already noted down and doesn't appear as default, so put it there and put "data" as type. It will automatically give your programm in "main.cpp" the awareness
+# of other folders existing, and for the AsyncWebServer instance to use.
+# SubType is also important when it comes to spiffs, so put "spiffs" as well there.
+# Leave flags empty if not necessarily needed for something specific.
+
+# This is the usual csv layout template if you need it:
+
+# Name	Type	SubType	Offset	Size	Flags
+# nvs	data,	nvs,	0x9000,	0x5000,	
+# otadata,	data,	ota,	0xe000,	0x2000,	
+# app0,	app,	ota_0,	0x10000,	0x140000,	
+# app1, app,	ota_1,	0x150000,	0x140000,	
+# spiffs,	data,	spiffs,	0x290000,	0x160000,	
+# coredump,	data,	coredump,	0x3F0000,	0x10000	
+
+# Uncomment when used, leave the "Name Type ..." commented though.
+
+# And that's all you need to know about csv for now for you to manage!
+# Check .ini file for further instructions next.

src/main.cpp

@@ -1,141 +1,102 @@
 //--------------------------------------------------------------------------------------------------------------------------//
-// Setting up the Adafruit_MPU6050 library for the accelerator chip
+// Setting up WLAN and a Webserver
 //--------------------------------------------------------------------------------------------------------------------------//
 
-// Check the other guide in the .docx as to how to INSTALL the necessary library //
+// There is multiple ways of doing this, so this is just one option.
+// This is how to set up an Asyncronous Websever, for displaying, sending, etc
 
-// Must be included for most things! //
-#include <Arduino.h> // Only include once of course.
-#include <Adafruit_MPU6050.h>
-#include <Adafruit_Sensor.h>
+// Quick note: The WiFi functions can uptake certain pins, making them unavailable for other manual use
 
-// Create instance of the sensor library //
-Adafruit_MPU6050 mpu;
+#include <Arduino.h>
+#include <WiFi.h> // Neccessary whenever you're planning on using WiFi
+
+// Include Webserver Library if planning on using //
+#include <ESPAsyncWebServer.h> // Not found?
+                               // No problem. To install it, follow the instructions in the .docx, just replace the name with "esp ayncwebsever"
+                               // to get the right results. 
+                               // Select the correct one, Author is "ESPHome Team"
+                               // There may be some issues with the library at one point, so
+                               // if that's the case, do it the manual way.
+                               // That means throwing everything I put in a folder called "Lib_backup", cut out it's contents and add them
+                               // to your source folder.
+                               // That method for sure is foolproof.
+
+#include <SPIFFS.h> // IF you are planning on hosting an html page with or without css, this is the correct way of doing it.
+#include <SPIFFSEditor.h> // Necessary to go along with this, copy "SPIFFSEditor.cpp" AND "SPIFFSEditor.h" from the src folder if needed. (You'll notice when using !SPIFFS)
+
+// Set necessary variables, can also be phrased as "#define ..." //
+const char* _ssid = "Here the name of your WiFi"; // For example: "cpsLabor2.4"
+const char* _password = "password to that WiFi here";
+
+// Create an instance of the Webserver library / class //
+AsyncWebServer server(80);
+
+// Now, if you want to send and update the page and need values from your running programm, you'll need a "processor" function.
+String processor(const String& _var) 
+{
+    Serial.println(_var);
+    if(_var == "STATE") // == Keyword from html
+    {
+        return ""; // Value to be handed over to the html file for displaying
+    }
+    return String();
+}
+// It's important to note that the value being handed over is in the String format, so be careful not to hand over anything else.
+// (The reason for that? HTML displays all the text as Strings, and therefor does not expect integer or floats for example.)
 
 void setup()
 {
-    Serial.begin(115200); // For Serial communication, check if the right bit-per-second rate is selected!
-                          // If you want to change said bit-per-second, look in the .ini file for information.
-                          // How do you know the one selected does not work / there's something wrong in the .ini file?
-                          // Check the terminal, if that is the case everything printed is Unicode gibberish.
-    
-    while(!Serial) delay(10); // Wait until the Serial communication is set up and initialized.
-    Serial.println("Starting..."); 
-
-    if(!mpu.begin()) // Exception for the case of the mpu not starting up
+    // Set up Spiffs, initializing it //
+    if(!SPIFFS.begin(true))
     {
-        // If this is the case, check the wiring and whether or not the right pins are connected.
-        // Another issue that could lead to this is too little or too much current going through the chip.
-        Serial.println("Failed to find MPU6050 chip.");
-        while(1)
+        Serial.println("An Error has occured while mounting SPIFFS.");
+        return;
+    }
+
+    WiFi.begin(_ssid, _password); // Start WLAN connection.
+    while(WiFi.status() != WL_CONNECTED) // Waiting for stable wifi connection.
     {
-            delay(10);
+        delay(1000);
+        Serial.println("Connecting to Wifi...");
     }
-    }
-    Serial.println("MPU6050 has been found.");
 
-    mpu.setAccelerometerRange(MPU6050_RANGE_8_G); // Set to the range of your choice for the accelerator values
-                                                  // depending on the range you want your read in values to vary in.
-    Serial.println("Accelerator range set to: ");
-    switch(mpu.getAccelerometerRange()) // Check setting and print for insight.
+    Serial.println(WiFi.localIP()); // Print the IP assigned to the ESP.
+
+    server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) // Upon call of the page IP (accessed through the ESP), receive a request. You can change this to auto update, look up if interested.
     {
-        case MPU6050_RANGE_2_G:
-            Serial.println("+-2G");
-        	break;
-        case MPU6050_RANGE_4_G:
-            Serial.println("+-4G");
-            break;
-        case MPU6050_RANGE_8_G:
-            Serial.println("+-8G");
-            break;
-        case MPU6050_RANGE_16_G:
-            Serial.println("+-16G");
-            break;
-    }
-
-    mpu.setGyroRange(MPU6050_RANGE_500_DEG); 
-    Serial.print("Gyro range set to: ");
-    switch (mpu.getGyroRange()) 
+        request->send(SPIFFS, "/index.html", String(), false, processor); // What should be called upon request? Index.html == Mainpage / html file.
+    });
+    server.on("/style.css", HTTP_GET, [](AsyncWebServerRequest *request) // If the server wants a styling / supports one
     {
-        case MPU6050_RANGE_250_DEG:
-            Serial.println("+- 250 deg/s");
-            break;
-        case MPU6050_RANGE_500_DEG:
-            Serial.println("+- 500 deg/s");
-            break;
-        case MPU6050_RANGE_1000_DEG:
-            Serial.println("+- 1000 deg/s");
-            break;
-        case MPU6050_RANGE_2000_DEG:
-            Serial.println("+- 2000 deg/s");
-            break;
+    request->send(SPIFFS, "/style.css", "text/css"); // Respond with the right css file, main for now.
+    });
+
+    // Start the server //
+    server.begin();
 }
 
-    mpu.setFilterBandwidth(MPU6050_BAND_21_HZ);
-    Serial.print("Filter bandwidth set to: ");
-    switch (mpu.getFilterBandwidth()) 
-    {
-        case MPU6050_BAND_260_HZ:
-            Serial.println("260 Hz");
-            break;
-        case MPU6050_BAND_184_HZ:
-            Serial.println("184 Hz");
-            break;
-        case MPU6050_BAND_94_HZ:
-            Serial.println("94 Hz");
-            break;
-        case MPU6050_BAND_44_HZ:
-            Serial.println("44 Hz");
-            break;
-        case MPU6050_BAND_21_HZ:
-            Serial.println("21 Hz");
-            break;
-        case MPU6050_BAND_10_HZ:
-            Serial.println("10 Hz");
-            break;
-        case MPU6050_BAND_5_HZ:
-            Serial.println("5 Hz");
-            break;
-    }
-
-    delay(100);
-
-    // What is the difference between "void setup()" and "void loop()"? Why put all this in here? //
-    // The setup fuction is only initialized once, and though that's true for the entire lifetime of the programm,
-    // the started services continue to run in here on this threat, allowing the loop to be executed simultaniously.
-    // Mind, and that's IMPORTANT!!, that you should refer from using "while(1)" in this function as much as possible.
-    // (I'm aware there is one in here in this project, but only because it is handled correctly and carefully.)
-}
-
-// Put your variables here for testing, otherwise I'd recommend putting it in a class //
-float _x_accel = 0; // x acceleration
-float _y_accel = 0; // y acceleration
-float _calc = 0; // for calculations
-
 void loop()
 {
-    // Save vals if you want to send them: //
-    sensors_event_t _a;
-    sensors_event_t _g;
-    sensors_event_t _temp; // Used as placeholder for now in the next function, even if you don't need temperature values.
 
-    mpu.getEvent(&_a, &_g, &_temp); // Reads in your values.
-
-    _x_accel = _a.acceleration.x; // acceleration in x.
-    _y_accel = _a.acceleration.y; // acceleration in y.
-
-    // Basic example for use //
-    _calc = _y_accel * 12.5; // Calculate postion if you want to.
-    if(_calc > 100) // reduce values if you only want values from (-100) - 100 for example
-    {
-        _calc = 100;
-    }
-    else if(_calc < (-100))
-    {
-        _calc = (-100);
 }
 
-    // And done! //
-    // Mind that everything in this loop repeats itself over and over, only stopping until the programm fails to execute or //
-    // the current is cut. If you'd like to restart everything, press the little button titled "RST" or "BOOT" (if the first does nothing) on the ESP. // 
-}
+// Now... how do you use SPIFFS? //
+// It's a bit harder to understand, but Spiffs is a filesystem that is compatible with microkontrollers like the ESP32.
+// WATCH OUT!! It is NOT compatible with ESP S2, but ESP32 S1 can handle it more than well.
+// You might think... why would I need that?
+// If you want to host a Webserver and display a website, you can either write the HTML in the C code directly, which is not only tiresome,
+// but also ineffecient (and it looks like throw up imo), or you store the html and css files, as well as any external sources such as pictures, in a new
+// and organized folder called "data". And to work with that folder and it's contents, you need SPIFFS.
+
+// First off all, create a new folder in your project and call it "data" like I mentioned. Leave it empty for now.
+// In this project, there is already a "data" folder, so here it isn't needed anymore. In there, you store your html and css files, and whatever
+// else you could need.
+// Once done setting up Spiffs, go check out the contents of said folder!
+
+
+// But how do I set it up? //
+// You first of all rearrange the partitions of your ESP in your project folder. For that, you need something called a ".csv" file,
+// that helps you to divide your flash memory (You need to store your files there and nowhere else or they're gone) and helps you assign
+// those partitions to certain uses. Such as OTA (over the air), or for example app assigned memory, coredump, etc etc
+
+// For that, check out the .csv file in this project and take it as a template. Read further there for more information.