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Special MostraUP release: Add Authentication

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Translated interface to portuguese as this is a portuguese event
This commit is contained in:
Diogo Cordeiro
2018-04-03 09:13:42 +00:00
parent 11a998dd3b
commit 1c59afa216
9 changed files with 533 additions and 54 deletions
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82
server/HTML.cpp Normal file
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@@ -0,0 +1,82 @@
#include "HTML.h"
String cssHTML ()
{
const String cssHTML =
"";
return cssHTML;
}
String gameHTML1 ()
{
const String gameHTML1=
"\r\n"
"\r\n"
"\r\n";
return gameHTML1;
}
String gameHTML2 ()
{
const String gameHTML2=
"\r\n"
"\r\n"
"\r\n";
return gameHTML2;
}
String gameHTML3 ()
{
const String gameHTML3=
"\r\n"
"\r\n"
"\r\n";
return gameHTML3;
}
String gameHTML4 ()
{
const String gameHTML4=
"\r\n"
"\r\n"
"\r\n";
return gameHTML4;
}
String authHTML1 ()
{
const String authHTML1=
"\r\n"
"\r\n"
"\r\n";
return authHTML1;
}
String authHTML2 ()
{
const String authHTML2=
"\r\n"
"\r\n"
"\r\n";
return authHTML2;
}
String authHTML3 ()
{
const String authHTML3=
"\r\n"
"\r\n"
"\r\n";
return authHTML3;
}
String authHTML4 ()
{
const String authHTML4=
"\r\n"
"\r\n"
"\r\n";
return authHTML4;
}

18
server/HTML.h Normal file
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@@ -0,0 +1,18 @@
// Due to https://github.com/esp8266/Arduino/issues/3205#issuecomment-299763849
#ifndef html_h
#define html_h
#include "Arduino.h"
String cssHTML ();
String gameHTML1 ();
String gameHTML2 ();
String gameHTML3 ();
String gameHTML4 ();
String authHTML1 ();
String authHTML2 ();
String authHTML3 ();
String authHTML4 ();
#endif

205
server/server.ino
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@@ -28,7 +28,7 @@
#include <ESP8266WebServer.h>
// Pages
#include "file1.h"
#include "HTML.h"
// Define a dns server for Captive Portal
const byte DNS_PORT = 53;
@@ -54,6 +54,18 @@ int bits[NLEDS] = { D0, D1, D2, D3, D4, D5 };
// Memorizes bits state
int current_answer[NLEDS] = { 0 };
// Current state of the game
bool is_game_running = false;
// Current system password
String password = "000000";
// Current system token
int token = 0;
// This is an emergency endpoint in case some of students decides to leave
// in the middle of a game, you should rename it in production as a security
// measure
const String FORCERESTARENDPOINT = "force_restart";
/**
* Turns all leds on
* **Doesn't update current_answer**
@@ -86,32 +98,33 @@ turn_all_off()
void
handleRoot()
{
webServer.send(200, "text/html", file1);
webServer.send(200, "text/html",
"<meta http-equiv=\"refresh\" content=\"0; url=http://42.42.42.42/auth\" />");
}
/**
* 404 - Page Not Found endpoint
* Game endpoint
*/
void
handleNotFound()
handleGame()
{
String message = "File Not Found\n\n";
message += "URI: ";
message += webServer.uri();
message += "\nMethod: ";
message +=(webServer.method() == HTTP_GET) ? "GET" : "POST";
message += "\nArguments: ";
message += webServer.args();
message += "\n";
webServer.setContentLength(gameHTML1().length() +
gameHTML2().length() +
gameHTML3().length() +
gameHTML4().length());
webServer.send(200, "text/html", gameHTML1());
webServer.sendContent(gameHTML2());
webServer.sendContent(gameHTML3());
webServer.sendContent(gameHTML4());
}
for (uint8_t i = 0; i < webServer.args(); ++i) {
message +=
" " + webServer.argName(i) + ": " + webServer.arg(i) +
"\n";
}
webServer.send(404, "text/plain", message);
/**
* CSS endpoint
*/
void
return_css()
{
webServer.send(200, "text/css", cssHTML());
}
/**
@@ -144,6 +157,76 @@ handleInputError()
webServer.send(500, "text/plain", message);
}
/**
* Auth endpoint
*/
void
handleAuth()
{
if (webServer.method() == HTTP_GET)
{
webServer.setContentLength(authHTML1().length() +
authHTML2().length() +
authHTML3().length() +
authHTML4().length());
webServer.send(200, "text/html", authHTML1());
webServer.sendContent(authHTML2());
webServer.sendContent(authHTML3());
webServer.sendContent(authHTML4());
}
else if (webServer.method() == HTTP_POST)
{
if (!is_game_running)
{
if (password == webServer.arg("password"))
{
is_game_running = true;
token = webServer.arg("token").toInt();
webServer.send(200, "text/html", "ok");
turn_all_off();
}
else
{
webServer.send(200, "text/html",
"Esta palavra-passe está errada.");
}
}
else
{
webServer.send(200, "text/html",
"Já está alguém a jogar, espera pela tua vez! :)");
}
}
else
{
// Invalid HTTP request method
handleInputError();
}
}
/**
* 404 - Page Not Found endpoint
*/
void
handleNotFound()
{
String message = "File Not Found\n\n";
message += "URI: ";
message += webServer.uri();
message += "\nMethod: ";
message +=(webServer.method() == HTTP_GET) ? "GET" : "POST";
message += "\nArguments: ";
message += webServer.args();
message += "\n";
for (uint8_t i = 0; i < webServer.args(); ++i)
message +=
" " + webServer.argName(i) + ": " + webServer.arg(i) +
"\n";
webServer.send(404, "text/plain", message);
}
/**
* Switches a led state (a.k.a. bit of current answer)
*
@@ -152,27 +235,61 @@ handleInputError()
void
switch_led()
{
if (!is_game_running || token != webServer.arg("token").toInt())
{
webServer.send(200, "text/plain", "unauthorized");
return;
}
int incomingByte = webServer.arg("led").toInt();
// Validate input
if (incomingByte >= NLEDS || incomingByte < 0)
{
handleInputError();
return;
}
String message = "Led ";
if (current_answer[incomingByte] == 1)
{ // Turn LED off
message += incomingByte;
message += " off!";
digitalWrite(bits[incomingByte], LOW);
current_answer[incomingByte] = 0;
}
else
{ // Turn LED on
message += incomingByte;
message += " on!";
digitalWrite(bits[incomingByte], HIGH);
current_answer[incomingByte] = 1;
}
webServer.send(200, "text/plain", message);
}
webServer.send(200, "text/plain", "ok");
/**
* Generates a binary string password with NLEDS length
* Result is stored in global password variable
*/
void
generate_password()
{
unsigned int dec_password = random(1, pow(2, NLEDS)-1);
char tmp_password[] = "000000";
for (int i = NLEDS-1; i > 0; --i)
{
tmp_password[i] =(dec_password & 1) + '0';
dec_password >>= 1;
}
for (int i = 0; i < NLEDS; ++i)
{
if (tmp_password[i] == '1')
{
password.setCharAt(i, '1');
}
}
}
/**
@@ -208,6 +325,14 @@ reset_game()
{
current_answer[i] = 0;
}
is_game_running = false;
token = 0;
generate_password();
// print password
print_binary_string(password);
}
/**
@@ -216,18 +341,32 @@ reset_game()
void
won_game()
{
if (!is_game_running || token != webServer.arg("token").toInt())
{
webServer.send(200, "text/plain", "unauthorized");
return;
}
for (int i = 0; i < 3; ++i)
{
turn_all_off();
delay(500);
print_binary_string(current_answer);
for (int i = 0; i < NLEDS; ++i)
{
if (current_answer[i] == 1)
{
digitalWrite(bits[i], HIGH);
}
}
delay(500);
}
reset_game();
webServer.send(200, "text/plain", "ok");
}
/**
@@ -269,16 +408,30 @@ setup()
webServer.on("/fwlink", handleRoot); // Microsoft captive portal.
webServer.on("/", handleRoot);
webServer.on("/auth", handleAuth);
webServer.on("/"+FORCERESTARENDPOINT,[]()
{
reset_game();
webServer.send(200, "text/plain",
"A caixa foi reiniciada com sucesso!");});
webServer.on("/game", handleGame);
webServer.on("/style.css", return_css);
webServer.on("/switch_state", switch_led);
webServer.on("/game/switch_state", switch_led);
webServer.on("/won", won_game);
webServer.on("/game/won", won_game);
webServer.onNotFound(handleNotFound);
//webServer.onNotFound(handleNotFound);
webServer.onNotFound(handleRoot);
// Start WebServer
webServer.begin();
Serial.println("HTTP server started");
/*** Start game ***/
generate_password();
// print password
print_binary_string(password);
}
/**