Captive portal serving files from SPIFFS, updatable Over-The-Air.
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 

101 lines
3.0 KiB

// Captive portal with (arduino) OTA + SPIFFS
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266mDNS.h>
#include <WiFiUdp.h>
#include <ArduinoOTA.h> // Over-the-Air updates
#include <ESP8266WebServer.h>
#include "./DNSServer.h" // Dns server
#include <FS.h> // SPIFFS
DNSServer dnsServer;
const byte DNS_PORT = 53;
ESP8266WebServer server(80);
#ifndef STASSID
#define STASSID "my-ssid"
//#define STASPSK "mypassword"
#endif
IPAddress apIP(192, 168, 4, 1);
const char* ssid = STASSID;
//const char* password = STAPSK;
void setup() {
Serial.begin(115200);
Serial.println("Booting");
WiFi.mode(WIFI_AP);
WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));
WiFi.softAP(ssid);
dnsServer.start(DNS_PORT, "*", apIP); // redirect dns request to AP ip
MDNS.begin("esp8266", WiFi.softAPIP());
Serial.println("Ready");
Serial.print("IP address: ");
Serial.println(WiFi.softAPIP());
//Over-the-Air updates
ArduinoOTA.setHostname("ESP8266");
ArduinoOTA.setPassword("change-me");
ArduinoOTA.begin();
//File system begin
SPIFFS.begin();
//redirect all traffic to index.html
server.onNotFound([]() {
if(!handleFileRead(server.uri())){
const char *metaRefreshStr = "<head><meta http-equiv=\"refresh\" content=\"0; url=http://192.168.4.1/index.html\" /></head><body><p>redirecting...</p></body>";
server.send(200, "text/html", metaRefreshStr);
}
});
server.begin();
}
void loop() {
dnsServer.processNextRequest();
ArduinoOTA.handle();
server.handleClient();
delay(50);
}
String getContentType(String filename){
if(server.hasArg("download")) return "application/octet-stream";
else if(filename.endsWith(".htm")) return "text/html";
else if(filename.endsWith(".html")) return "text/html";
else if(filename.endsWith(".css")) return "text/css";
else if(filename.endsWith(".js")) return "application/javascript";
else if(filename.endsWith(".png")) return "image/png";
else if(filename.endsWith(".gif")) return "image/gif";
else if(filename.endsWith(".jpg")) return "image/jpeg";
else if(filename.endsWith(".ico")) return "image/x-icon";
else if(filename.endsWith(".xml")) return "text/xml";
else if(filename.endsWith(".mp4")) return "video/mp4";
else if(filename.endsWith(".pdf")) return "application/x-pdf";
else if(filename.endsWith(".zip")) return "application/x-zip";
else if(filename.endsWith(".gz")) return "application/x-gzip";
return "text/plain";
}
//Given a file path, look for it in the SPIFFS file storage. Returns true if found, returns false if not found.
bool handleFileRead(String path){
if(path.endsWith("/")) path += "index.html";
String contentType = getContentType(path);
String pathWithGz = path + ".gz";
if(SPIFFS.exists(pathWithGz) || SPIFFS.exists(path)){
if(SPIFFS.exists(pathWithGz))
path += ".gz";
File file = SPIFFS.open(path, "r");
size_t sent = server.streamFile(file, contentType);
file.close();
return true;
}
return false;
}