#include #include #include const char* ssid = "........"; const char* password = "........"; WebServer server(80); //Check if header is present and correct bool is_authentified() { Serial.println("Enter is_authentified"); if (server.hasHeader("Cookie")) { Serial.print("Found cookie: "); String cookie = server.header("Cookie"); Serial.println(cookie); if (cookie.indexOf("ESPSESSIONID=1") != -1) { Serial.println("Authentification Successful"); return true; } } Serial.println("Authentification Failed"); return false; } //login page, also called for disconnect void handleLogin() { String msg; if (server.hasHeader("Cookie")) { Serial.print("Found cookie: "); String cookie = server.header("Cookie"); Serial.println(cookie); } if (server.hasArg("DISCONNECT")) { Serial.println("Disconnection"); server.sendHeader("Location", "/login"); server.sendHeader("Cache-Control", "no-cache"); server.sendHeader("Set-Cookie", "ESPSESSIONID=0"); server.send(301); return; } if (server.hasArg("USERNAME") && server.hasArg("PASSWORD")) { if (server.arg("USERNAME") == "admin" && server.arg("PASSWORD") == "admin") { server.sendHeader("Location", "/"); server.sendHeader("Cache-Control", "no-cache"); server.sendHeader("Set-Cookie", "ESPSESSIONID=1"); server.send(301); Serial.println("Log in Successful"); return; } msg = "Wrong username/password! try again."; Serial.println("Log in Failed"); } String content = "" + msg + "
"; content += "You also can go here"; server.send(200, "text/html", content); } //root page can be accessed only if authentification is ok void handleRoot() { Serial.println("Enter handleRoot"); String header; if (!is_authentified()) { server.sendHeader("Location", "/login"); server.sendHeader("Cache-Control", "no-cache"); server.send(301); return; } String content = "

hello, you successfully connected to esp8266!

"; if (server.hasHeader("User-Agent")) { content += "the user agent used is : " + server.header("User-Agent") + "

"; } content += "You can access this page until you disconnect"; server.send(200, "text/html", content); } //no need authentification void handleNotFound() { String message = "File Not Found\n\n"; message += "URI: "; message += server.uri(); message += "\nMethod: "; message += (server.method() == HTTP_GET) ? "GET" : "POST"; message += "\nArguments: "; message += server.args(); message += "\n"; for (uint8_t i = 0; i < server.args(); i++) { message += " " + server.argName(i) + ": " + server.arg(i) + "\n"; } server.send(404, "text/plain", message); } void setup(void) { Serial.begin(115200); WiFi.mode(WIFI_STA); WiFi.begin(ssid, password); Serial.println(""); // Wait for connection while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.print("Connected to "); Serial.println(ssid); Serial.print("IP address: "); Serial.println(WiFi.localIP()); server.on("/", handleRoot); server.on("/login", handleLogin); server.on("/inline", []() { server.send(200, "text/plain", "this works without need of authentification"); }); server.onNotFound(handleNotFound); //here the list of headers to be recorded const char * headerkeys[] = {"User-Agent", "Cookie"} ; size_t headerkeyssize = sizeof(headerkeys) / sizeof(char*); //ask server to track these headers server.collectHeaders(headerkeys, headerkeyssize); server.begin(); Serial.println("HTTP server started"); } void loop(void) { server.handleClient(); delay(2);//allow the cpu to switch to other tasks }