#ifdef ESP8266
#include <ESP8266WiFi.h> // Built-in
#include <ESP8266WiFiMulti.h> // Built-in
#include <ESP8266WebServer.h> // Built-in
#include <ESP8266mDNS.h>
#include "FS.h"
#else
#include <WiFi.h> // Built-in
#include <WiFiMulti.h> // Built-in
#include <ESP32WebServer.h> // https://github.com/Pedroalbuquerque/ESP32WebServer download and place in your Libraries folder
#include <ESPmDNS.h>
#include "FS.h"
#endif
#include "Network.h"
#include "Sys_Variables.h"
#include "CSS.h"
#include <SPI.h>
#ifdef ESP8266
ESP8266WiFiMulti wifiMulti;
ESP8266WebServer server(80);
#else
WiFiMulti wifiMulti;
ESP32WebServer server(80);
#endif
// File
const char* filename1 = "/data.csv";
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void setup(void) {
Serial.begin(115200);
// File System
if (SPIFFS.begin())
{
Serial.println("SPIFFS Initialize....ok");
}
else
{
Serial.println("SPIFFS Initialization...failed");
}
if (SPIFFS.exists(filename1))
{
Serial.println("Файл существует");
}
else
{
if (SPIFFS.format())
{
Serial.println("Файловая система отформатирована");
}
else
{
Serial.println("Ошибка форматирования файловой системы");
}
//Create New File And Write Data to It
//w=Write Open file for writing
File f = SPIFFS.open(filename1, "w");
if (!f)
{
Serial.println("Файл не открывается");
}
else
{
//Write data to file
Serial.println("Запись данных в файл");
f.print("Тест");
f.close(); //Close file
}
}
if (!WiFi.config(local_IP, gateway, subnet, dns)) { //WiFi.config(ip, gateway, subnet, dns1, dns2);
Serial.println("WiFi STATION Failed to configure Correctly");
}
wifiMulti.addAP(ssid_1, password_1); // add Wi-Fi networks you want to connect to, it connects strongest to weakest
wifiMulti.addAP(ssid_2, password_2); // Adjust the values in the Network tab
wifiMulti.addAP(ssid_3, password_3);
wifiMulti.addAP(ssid_4, password_4); // You don't need 4 entries, this is for example!
Serial.println("Connecting ...");
while (wifiMulti.run() != WL_CONNECTED) { // Wait for the Wi-Fi to connect: scan for Wi-Fi networks, and connect to the strongest of the networks above
delay(250); Serial.print('.');
}
Serial.println("\nConnected to " + WiFi.SSID() + " Use IP address: " + WiFi.localIP().toString()); // Report which SSID and IP is in use
// The logical name http://fileserver.local will also access the device if you have 'Bonjour' running or your system supports multicast dns
if (!MDNS.begin(servername)) { // Set your preferred server name, if you use "myserver" the address would be http://myserver.local/
Serial.println(F("Error setting up MDNS responder!"));
ESP.restart();
}
#ifdef ESP32
// Note: SD_Card readers on the ESP32 will NOT work unless there is a pull-up on MISO, either do this or wire one on (1K to 4K7)
Serial.println(MISO);
pinMode(19, INPUT_PULLUP);
#endif
Serial.print(F("Initializing SD card..."));
SPIFFS.begin(); // Start the SPI Flash Files System
// Note: Using the ESP32 and SD_Card readers requires a 1K to 4K7 pull-up to 3v3 on the MISO line, otherwise they do-not function.
//----------------------------------------------------------------------
///////////////////////////// Server Commands
server.on("/", HomePage);
server.on("/download", File_Download);
///////////////////////////// End of Request commands
server.begin();
Serial.println("HTTP server started");
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void loop(void) {
server.handleClient(); // Listen for client connections
}
// All supporting functions from here...
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void HomePage() {
SendHTML_Header();
webpage += F("<a href='/download'><button>Download</button></a>");
append_page_footer();
SendHTML_Content();
SendHTML_Stop(); // Stop is needed because no content length was sent
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void File_Download() { // This gets called twice, the first pass selects the input, the second pass then processes the command line arguments
if (server.args() > 0 ) { // Arguments were received
if (server.hasArg("download")) SD_file_download(server.arg(0));
}
else SelectInput("File Download", "Enter filename to download", "download", "download");
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void SD_file_download(String filename) {
File download = SPIFFS.open("/" + filename, "w");
if (download) {
server.sendHeader("Content-Type", "text/text");
server.sendHeader("Content-Disposition", "attachment; filename=" + filename);
server.sendHeader("Connection", "close");
server.streamFile(download, "application/octet-stream");
download.close();
} else ReportFileNotPresent("download");
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void SendHTML_Header() {
server.sendHeader("Cache-Control", "no-cache, no-store, must-revalidate");
server.sendHeader("Pragma", "no-cache");
server.sendHeader("Expires", "-1");
server.setContentLength(CONTENT_LENGTH_UNKNOWN);
server.send(200, "text/html", ""); // Empty content inhibits Content-length header so we have to close the socket ourselves.
append_page_header();
server.sendContent(webpage);
webpage = "";
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void SendHTML_Content() {
server.sendContent(webpage);
webpage = "";
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void SendHTML_Stop() {
server.sendContent("");
server.client().stop(); // Stop is needed because no content length was sent
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void SelectInput(String heading1, String heading2, String command, String arg_calling_name) {
SendHTML_Header();
webpage += F("<h3 class='rcorners_m'>"); webpage += heading1 + "</h3><br>";
webpage += F("<h3>"); webpage += heading2 + "</h3>";
webpage += F("<FORM action='/"); webpage += command + "' method='post'>"; // Must match the calling argument e.g. '/chart' calls '/chart' after selection but with arguments!
webpage += F("<input type='text' name='"); webpage += arg_calling_name; webpage += F("' value=''><br>");
webpage += F("<type='submit' name='"); webpage += arg_calling_name; webpage += F("' value=''><br><br>");
append_page_footer();
SendHTML_Content();
SendHTML_Stop();
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void ReportFileNotPresent(String target) {
SendHTML_Header();
webpage += F("<h3>File does not exist</h3>");
webpage += F("<a href='/"); webpage += target + "'>[Back]</a><br><br>";
append_page_footer();
SendHTML_Content();
SendHTML_Stop();
}
