Repo for non destructive e-scooter intervention materials
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// Captive portal with (arduino) OTA + SPIFFS
// some crap https://community.arubanetworks.com/t5/Controller-Based-WLANs/Apple-CNA-take-a-long-time-to-change-the-Cancel-Button-to-Done/ta-p/267612
#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
#include <EEPROM.h> // for storing state flags in memory
#define EEPROM_SIZE 1 // define the number of bytes you want to access
DNSServer dnsServer;
const byte DNS_PORT = 53;
ESP8266WebServer server(80);
#ifndef STASSID
#define STASSID "\xF0\x9F\x9B\xB4 beta"
//#define STASPSK "mypassword"
#endif
IPAddress apIP(8, 8, 8, 8);
const char* ssid = STASSID;
//const char* password = STAPSK;
void setup() {
Serial.begin(115200);
EEPROM.begin(EEPROM_SIZE);
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("opencoil", WiFi.softAPIP());
Serial.println("Ready");
Serial.print("IP address: ");
Serial.println(WiFi.softAPIP());
//Over-the-Air updates
ArduinoOTA.setHostname("opencoil");
//ArduinoOTA.setPassword("change-me"); //enabling password disables SPIFFS upload
ArduinoOTA.begin();
SPIFFS.begin();
//close the captive portal screen on ios! (does not work anymore.. somehow..still allows for faking internet connection but not for closing CNA automatically)
server.on("/CONNECT", closeCNAdelay);
//restart esp after donwloading (hack to make sure captive portal re-opens again when a new user connects to the portal)
server.on("/RESTART", restartESP);
server.on("/generate_204", androidRedirect); //Adnroid captive portal, create notification and pops up android cna, but does not connect or go away after...needs closeCNAdelay like handler
//server.on("/favicon.ico", androidRedirect); //Another Android captive portal
server.on("/fwlink", androidRedirect); //Microsoft captive portal
//if page is not found, redirect traffic to index.html (cheap way to redirect all traffic to our landing page)
server.onNotFound([]() {
if(!handleFileRead(server.uri())){
const char *metaRefreshStr = "<head><meta http-equiv=\"refresh\" content=\"0; url=http://8.8.8.8/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;
}
void handleAppleCaptivePortal() {
String Page = F("<HTML><HEAD><TITLE>Success</TITLE></HEAD><BODY>Success</BODY></HTML>");
server.sendHeader("Cache-Control","no-cache, no-store, must-revalidate");
server.sendHeader("Pragma", "no-cache");
server.sendHeader("Expires", "-1");
server.send(200, "text/html", Page);
return;
}
void closeCNAdelay(){
// write to fil or memory that the function has been executed
server.on("/hotspot-detect.html", handleAppleCaptivePortal); //only for ios, osx asks for random urls, issue: this stays 'open' for ever...also for new clients..
//delay(1000);
//ESP.restart();
return;
}
void restartESP(){
delay(1000);
ESP.restart();
return;
}
void androidRedirect(){
String Page = F("<head><meta http-equiv=\"refresh\" content=\"0; url=http://8.8.8.8/index.html\" /></head><body><p>redirecting...</p></body>");
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", Page );
}