<?php
namespace entities\evr\security;

class Key_Hashes
{
   public function __construct()
   {
      $this->set_path();
      $this->set_hashes();
   }
   private function set_path()
   {
      $this->path = $GLOBALS["KEY_HASHES_PATH"];
   }
   private function set_hashes()
   {
      $this->hashes = file($this->path, FILE_IGNORE_NEW_LINES);
   }
   public function write()
   {
      $string = implode("\n", $this->hashes) . "\n";
      file_put_contents($this->path, $string);
   }
   public function remove($hash)
   {
      $hashes = $this->hashes;
      foreach (range(0, count($hashes) - 1) as $ii)
      {
         if ($hashes[$ii] == $hash)
         {
            array_splice($hashes, $ii, 1);
            break;
         }
      }
      $this->hashes = $hashes;
   }
}
<?php
namespace entities\evr\security;
use entities\html as html;

class Security
{
   public function __construct()
   {
      $this->registrar = new Registrar();
      $this->cookie = new Cookie();
      $this->set_username();
      $this->addresses = new Addresses($this->username);
   }
   private function set_username()
   {
      $username = null;
      if ($this->is_login())
      {
         $submission = $this->get_post_parameter("username");
         $username = $this->find_user_directory($submission);
      }
      else if ($this->cookie->exists())
      {
         $username = $this->cookie->get_username();
      }
      $this->username = $username;
   }
   private function is_login()
   {
      $action = $this->get_post_parameter("action");
      return $action == $GLOBALS["LOGIN_BUTTON_TEXT"];
   }
   public function register_user()
   {
      return $this->registrar->register();
   }
   public static function validate_key()
   {
      $hashes = new Key_Hashes();
      $key = self::get_post_parameter("key");
      if (self::find_hash($hashes, $key))
      {
         return true;
      }
      self::show_error("Key not found");
      return false;
   }
   public static function find_hash($hashes, $key)
   {
      foreach ($hashes->hashes as $hash)
      {
         if (self::match_to_hash($key, $hash))
         {
            return $hash;
         }
      }
   }
   public static function match_to_hash($key, $hash)
   {
      if (!$hash)
      {
         return $hash == crypt($key);
      }
      return $hash == crypt($key, $hash);
   }
   public static function show_error($message)
   {
      echo new html\Div(null, "error", $message);
   }
   public function validate_user()
   {
      $action = $this->get_post_parameter("action");
      if ($this->is_login())
      {
         return $this->log_user_in();
      }
      else if ($this->cookie->exists())
      {
         return $this->validate_cookie();
      }
   }
   public static function get_post_parameter($name)
   {
      if (isset($_POST[$name]))
      {
         return $_POST[$name];
      }
   }
   private function log_user_in()
   {
      $password = $this->get_post_parameter("password");
      if ($hash = $this->verify_credentials($this->username, $password))
      {
         if ($this->get_post_parameter("remember"))
         {
            $this->cookie->set($this->username, $hash);
            $this->addresses->add_current();
         }
         return true;
      }
      return false;
   }
   public static function verify_credentials($username, $password)
   {
      $hash = self::get_stored_hash($username);
      if (self::match_to_hash($password, $hash))
      {
         return $hash;
      }
      self::show_error("Username/password not found");
   }
   public static function get_stored_hash($username)
   {
      $root = $GLOBALS["USERS_PATH"] . "/";
      $path = "$root$username/" . $GLOBALS["USER_HASH_PATH"];
      if (is_file($path))
      {
         return trim(file_get_contents($path));
      }
      return null;
   }
   public static function find_user_directory($username)
   {
      $root = $GLOBALS["USERS_PATH"];
      foreach (scandir($root) as $file_name)
      {
         $path = "$root/$file_name";
         if (is_dir($path) && !strcasecmp($file_name, $username))
         {
            return $file_name;
         }
      }
   }
   private function validate_cookie()
   {
      $hash = $this->cookie->get_hash();
      $stored = self::get_stored_hash($this->username);
      if ($hash == $stored)
      {
         if ($this->addresses->find_current_address())
         {
            $this->cookie->set($this->username, $hash);
            return true;
         }
      }
      return false;
   }
   public static function show_success($message)
   {
      echo new html\Div(null, "success", $message);
   }
   public static function remove_key()
   {
      $key = self::get_post_parameter("key");
      $hashes = new Key_Hashes();
      $hash = self::find_hash($hashes, $key);
      $hashes->remove($hash);
      $hashes->write();
   }
   public function change_password()
   {
      return $this->registrar->change_password();
   }
   public function reset_password()
   {
      return $this->registrar->reset_password();
   }
}
3.237.66.86
3.237.66.86
3.237.66.86
 
September 30, 2015


Edge of Life is a form I made with Babycastles and Mouth Arcade for an event in New York called Internet Yami-ichi, a flea market of internet-ish goods. We set up our table to look like a doctor's office and pharmacy and offered free examinations and medication prescriptions, a system described by one person as "a whole pharmacy and medical industrial complex".

Diagnoses were based on responses to the form and observations by our doctor during a short examination. The examination typically involved bizarre questions, toy torpedoes being thrown at people and a plastic bucket over the patient's head. The form combined ideas from Myers-Briggs Type Indicators, Codex Seraphinianus and chain-mail personality tests that tell you which TV show character you are. In our waiting room, we had Lake of Roaches installed in a stuffed bat (GIRP bat). It was really fun!

The icons for the food pyramid are from Maple Story and the gun icons are from the dingbat font Outgunned. I'm also using Outgunned to generate the items in Food Spring.