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<?php namespace HashOver;
// Copyright (C) 2015-2018 Jacob Barkdull
// This file is part of HashOver.
//
// HashOver is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// HashOver is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with HashOver. If not, see <http://www.gnu.org/licenses/>.
class Login extends PostData
{
public $setup;
public $encryption;
public $cookies;
public $locale;
public $loginMethod;
public $fieldNeeded;
public $name = '';
public $password = '';
public $loginHash = '';
public $email = '';
public $website = '';
public $userIsLoggedIn = false;
public $userIsAdmin = false;
public function __construct (Setup $setup)
{
parent::__construct ();
$this->setup = $setup;
$this->encryption = $setup->encryption;
$this->cookies = new Cookies ($setup);
$this->locale = new Locale ($setup);
// Instantiate login method class
$login_class = 'HashOver\\' . $this->setup->loginMethod;
$this->loginMethod = new $login_class ($setup, $this->cookies, $this->locale);
// Error message to display to the user
$this->fieldNeeded = $this->locale->text['field-needed'];
// Check if user is logged in
$this->getLogin ();
}
// Prepares login credentials
public function prepareCredentials ()
{
// Set name
if (isset ($this->postData['name'])) {
$this->loginMethod->name = $this->postData['name'];
}
// Attempt to get name
$name = $this->setup->getRequest ('name');
// Attempt to get password
$password = $this->setup->getRequest ('password', null);
// Set password
if ($password !== null) {
$this->loginMethod->password = $this->encryption->createHash ($password);
} else {
$this->loginMethod->password = '';
}
// Check that login hash cookie is not set
if ($this->cookies->getValue ('login') === null) {
// If so, generate a random password
$random_password = bin2hex (openssl_random_pseudo_bytes (16));
// And use user password or random password
$password = $password ? $password : $random_password;
}
// Generate a RIPEMD-160 hash to indicate user login
$this->loginMethod->loginHash = hash ('ripemd160', $name . $password);
// Set e-mail address
if (isset ($this->postData['email'])) {
$this->loginMethod->email = $this->postData['email'];
}
// Set website URL
if (isset ($this->postData['website'])) {
$this->loginMethod->website = $this->postData['website'];
}
}
// Update login credentials
public function updateCredentials ()
{
$this->name = $this->loginMethod->name;
$this->password = $this->loginMethod->password;
$this->loginHash = $this->loginMethod->loginHash;
$this->email = $this->loginMethod->email;
$this->website = $this->loginMethod->website;
// Validate e-mail address
if (!empty ($this->email)) {
if (!filter_var ($this->email, FILTER_VALIDATE_EMAIL)) {
$this->email = '';
}
}
// Prepend "http://" to website URL if missing
if (!empty ($this->website)) {
if (!preg_match ('/htt(p|ps):\/\//i', $this->website)) {
$this->website = 'http://' . $this->website;
}
}
}
// Set login credentials
public function setCredentials ()
{
// Prepare login credentials
$this->prepareCredentials ();
// Set login method credentials
$this->loginMethod->setCredentials ();
// Update login credentials
$this->updateCredentials ();
}
// Get login method credentials
public function getCredentials ()
{
$this->loginMethod->getCredentials ();
$this->updateCredentials ();
}
// Checks if required fields have values
public function validateFields ()
{
// Check required fields, throw error if any are empty
foreach ($this->setup->fieldOptions as $field => $status) {
if ($status === 'required' and empty ($this->$field)) {
// Don't set cookies if the request is via AJAX
if ($this->viaAJAX !== true) {
$this->cookies->setFailedOn ($field, $this->replyTo);
}
throw new \Exception (sprintf (
$this->fieldNeeded, $this->locale->text[$field]
));
}
}
return true;
}
// Main login method
public function setLogin ()
{
// Set login method credentials
$this->setCredentials ();
// Check if required fields have values
$this->validateFields ();
// Execute login method's setLogin
if ($this->loginMethod->enabled === true) {
$this->loginMethod->setLogin ();
}
}
// Check if user is logged in
public function getLogin ()
{
// Get login method credentials
$this->getCredentials ();
// Check if user is logged in
if (!empty ($this->loginHash)) {
// If so, set login indicator
$this->userIsLoggedIn = true;
// Check if user is logged in as admin
if ($this->setup->adminLogin ($this->loginHash) === true) {
$this->userIsAdmin = true;
}
}
}
// Main logout method
public function clearLogin ()
{
$this->loginMethod->clearLogin ();
}
}
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