<?php
namespace account;
require_once "verify_user_credentials.php";
require_once "verify_temporary_credentials.php";
require_once "add_temporary_account.php";
$GLOBALS["USERS_DIRECTORY"] = "users/";
$GLOBALS["COOKIE_LENGTH"] = "2592000";
$GLOBALS["COOKIE_PATH"] = "/";
$GLOBALS["TEMP_USERS_DIRECTORY"] = "_tmp/";
function get_user_path()
{
   $root = find_users_root();
   if (permanent_credentials_exist())
   {
      $name = $_COOKIE["name"];
      if (verify_user_credentials($name, null, $_COOKIE["hash"])->count() == 0)
      {
         renew_cookie("name");
         renew_cookie("hash");
         return $root . $name . "/";
      }
   }
   $id = null;
   if (temporary_credentials_exist())
   {
      $id = $_COOKIE["id"];
      if (!verify_temporary_credentials($id, $_COOKIE["code"]))
      {
         $id = null;
      }
      else
      {
         renew_cookie("id");
         renew_cookie("code");
      }
   }
   if (is_null($id))
   {
      $id = add_temporary_account();
   }
   return $root . $GLOBALS["TEMP_USERS_DIRECTORY"] . $id . "/";
}
function find_users_root()
{
   $path = $GLOBALS["USERS_DIRECTORY"];
   while (!is_dir($path))
   {
      $path = "../" . $path;
   }
   return $path;
}
function permanent_credentials_exist()
{
   $name = array_key_exists("name", $_COOKIE);
   $hash = array_key_exists("hash", $_COOKIE);
   return $name && $hash;
}
function renew_cookie($name)
{
   $expiration = time() + intval($GLOBALS["COOKIE_LENGTH"]);
   $path = $GLOBALS["COOKIE_PATH"];
   setcookie($name, $_COOKIE[$name], $expiration, $path);
}
function temporary_credentials_exist()
{
   $id = array_key_exists("id", $_COOKIE);
   $code = array_key_exists("code", $_COOKIE);
   return $id && $code;
}
function is_permanent_account($path)
{
   return !preg_match("/_tmp\/.+\/$/", $path);
}
function find_temp_users_root()
{
   $path = find_users_root() . $GLOBALS["TEMP_USERS_DIRECTORY"];
   if (!is_dir($path))
   {
      mkdir($path, 0770);
   }
   return $path;
}   
function build_user_path($name)
{
   return find_users_root() . "$name/";
}

<?php
namespace account;
require_once "Errors.php";
require_once "validate_submission.php";
require_once "get_user_path.php";
require_once "add_user_account.php";
require_once "add_user_cookie.php";
submit_change_password_request();
function submit_change_password_request()
{
   $name = $_GET["name"];
   $old_password = $_GET["old_pass"];
   $new_password = array($_GET["new_pass"], $_GET["new_pass_confirmation"]);
   $errors = verify_user_credentials($name, $old_password);
   validate_password($new_password, $errors);
   if ($errors->count() == 0)
   {
      store_password(build_user_path($name), $new_password[0]);
      add_user_cookie($name);
   }
   echo $errors;
}

<?php
namespace account;
require_once "user_exists.php";
require_once "validate_submission.php";
require_once "add_user_account.php";
require_once "add_user_cookie.php";
register_user();
function register_user()
{
   $username = $_GET["user"];
   $password = array($_GET["pass"], $_GET["repeat"]);
   $email_address = $_GET["email"];
   $errors = validate_submission($username, $password, $email_address);
   if ($errors->count() > 0)
   {
      echo $errors;
      return;
   }
   add_user_account($username, $password[0], $email_address);
   add_user_cookie($username);
}

EVR.include("account/form/forms/Forms.js");
EVR.include("account/form/input/Input.js");
EVR.include("account/form/error/Error.js");
EVR.Account.Form = function(container, title)
{
   this.container = container;
   this.title = title;
   this.focused = false;
   this.inputs = [];
   this.element = document.createElement("form");
   this.element.method = "post";
}
EVR.Account.Form.prototype.initialize = function()
{
   this.errors = new EVR.Account.Form.Error.Errors(this);
   this.add_title();
   this.add_listeners();
}   
EVR.Account.Form.prototype.append = function()
{
   this.container.appendChild(this.element);
}
EVR.Account.Form.prototype.add_title = function()
{
   var element = document.createElement("div");
   element.innerHTML = this.title;
   this.element.appendChild(element);
}
EVR.Account.Form.prototype.add_listeners = function()
{
   var current = this;
   this.element.onkeydown =
      function(event) {
	 var code = event ? event.keyCode : window.event.keyCode;
	 if (code == 13)
	 {
	    current.respond();
	    return false;
	 }
      };
   this.element.onsubmit = function() { return false };
}
EVR.Account.Form.prototype.add_input = function(name, value, type)
{
   if (type == null)
   {
      type = "text";
   }
   var input = new EVR.Account.Form.Input(this, value, type);
   input.append();
   this.inputs[name] = input;
   return input;
}
EVR.Account.Form.prototype.neutralize = function()
{
   var inputs = this.inputs;
   for (name in inputs)
   {
      inputs[name].set_background(FORM_NEUTRAL_COLOR);
   }
}
EVR.Account.Form.prototype.build_query = function()
{
   var inputs = this.inputs;
   var value, query = "";
   for (name in inputs)
   {
      value = encodeURIComponent(inputs[name].get_value());
      query += name + "=" + value + "&";
   }
   return query;
}
EVR.Account.Form.prototype.clear_errors = function()
{
   this.errors.clear();
   this.neutralize();
}   
EVR.Account.Form.prototype.add_error = function(message, affected)
{
   if (typeof(affected) == "string")
   {
      affected = [affected];
   }
   this.errors.add_error(message, affected);
}
EVR.Account.Form.prototype.display_errors = function()
{
   this.errors.display();
}
EVR.Account.Form.prototype.reset = function()
{
   var input, inputs = this.inputs;
   for (name in inputs)
   {
      input = inputs[name];
      input.set_value("");
      input.swap();
   }
   this.clear_errors();
}