Sorry, I can’t find the string… here’s the php file
<?php
abstract class Photonic_OAuth2_Processor extends Photonic_Processor {
public $scope, $response_type, $client_id, $client_secret, $state, $access_token;
function __construct() {
parent::__construct();
}
public abstract function authentication_url();
public abstract function access_token_url();
public function redirect_url() {
return get_site_url();
}
public function get_authorization_url($args = array()) {
$url = add_query_arg('test', 'test');
$url = remove_query_arg('test', $url);
$parameters = array_merge(array(
'response_type' => $this->response_type,
'redirect_uri' => $this->redirect_url(),
'client_id' => $this->client_id,
'scope' => $this->scope,
'access_type' => 'offline',
'state' => md5($this->client_secret.$this->provider).'::'.urlencode($url),
), $args);
return $this->authentication_url()."?".$this->build_query($parameters);
}
/**
* Takes an OAuth request token and exchanges it for an access token.
*
* @param $request_token
*/
function get_access_token($request_token) {
$code = $request_token['code'];
$state_args = explode('::', $request_token['state']);
$secret = md5($this->client_secret, false);
if ($state_args[0] == md5($this->client_secret.$this->provider)) {
$url = urldecode($state_args[1]);
$response = Photonic::http($this->access_token_URL(), 'POST', array(
'code' => $code,
'grant_type' => 'authorization_code',
'client_id' => $this->client_id,
'client_secret' => $this->client_secret,
'redirect_uri' => $this->redirect_url(),
));
if (is_wp_error($response)) {
$url = add_query_arg('error', $response->get_error_code(), $url);
}
else if ($response == null) {
$url = add_query_arg('error', 'null', $url);
}
else {
$body = $response['body'];
$body = json_decode($body);
if (isset($_COOKIE['photonic-' . $secret . '-oauth-token'])) {
unset($_COOKIE['photonic-' . $secret . '-oauth-token']);
}
if (isset($_COOKIE['photonic-' . $secret . '-oauth-refresh-token']) && isset($body->refresh_token)) {
unset($_COOKIE['photonic-' . $secret . '-oauth-refresh-token']);
}
if (isset($_COOKIE['photonic-' . $secret . '-oauth-token-type'])) {
unset($_COOKIE['photonic-' . $secret . '-oauth-token-type']);
}
if (isset($_COOKIE['photonic-' . $secret . '-oauth-token-created'])) {
unset($_COOKIE['photonic-' . $secret . '-oauth-token-created']);
}
if (isset($_COOKIE['photonic-' . $secret . '-oauth-token-expires'])) {
unset($_COOKIE['photonic-' . $secret . '-oauth-token-expires']);
}
$cookie_expiration = 365 * 24 * 60 * 60;
setcookie('photonic-' . $secret . '-oauth-token', $body->access_token, time() + $cookie_expiration, COOKIEPATH);
if (isset($body->refresh_token)) {
setcookie('photonic-' . $secret . '-oauth-refresh-token', $body->refresh_token, time() + $cookie_expiration, COOKIEPATH);
}
setcookie('photonic-' . $secret . '-oauth-token-type', $body->token_type, time() + $cookie_expiration, COOKIEPATH);
setcookie('photonic-' . $secret . '-oauth-token-created', time(), time() + $cookie_expiration, COOKIEPATH);
setcookie('photonic-' . $secret . '-oauth-token-expires', $body->expires_in, time() + $cookie_expiration, COOKIEPATH);
}
}
else {
$url = remove_query_arg(array('token', 'code', 'state'));
}
wp_redirect($url);
exit();
}
function refresh_token($refresh_token) {
$token = $this->get_access_token_from_refresh($refresh_token, false);
if (!empty($token)) {
$secret = md5($this->client_secret, false);
if (isset($_COOKIE['photonic-' . $secret . '-oauth-token'])) {
unset($_COOKIE['photonic-' . $secret . '-oauth-token']);
}
if (isset($_COOKIE['photonic-' . $secret . '-oauth-token-type'])) {
unset($_COOKIE['photonic-' . $secret . '-oauth-token-type']);
}
if (isset($_COOKIE['photonic-' . $secret . '-oauth-token-created'])) {
unset($_COOKIE['photonic-' . $secret . '-oauth-token-created']);
}
if (isset($_COOKIE['photonic-' . $secret . '-oauth-token-expires'])) {
unset($_COOKIE['photonic-' . $secret . '-oauth-token-expires']);
}
$cookie_expiration = 365 * 24 * 60 * 60;
setcookie('photonic-' . $secret . '-oauth-token', $token['oauth_token'], time() + $cookie_expiration, COOKIEPATH);
setcookie('photonic-' . $secret . '-oauth-token-type', $token['oauth_token_type'], time() + $cookie_expiration, COOKIEPATH);
setcookie('photonic-' . $secret . '-oauth-token-created', $token['oauth_token_created'], time() + $cookie_expiration, COOKIEPATH);
setcookie('photonic-' . $secret . '-oauth-token-expires', $token['oauth_token_expires'], time() + $cookie_expiration, COOKIEPATH);
}
}
/**
* @param $refresh_token
*/
public function perform_back_end_authentication($refresh_token) {
$photonic_authentication = get_option('photonic_authentication');
if (!isset($photonic_authentication)) {
$photonic_authentication = array();
}
if (!isset($photonic_authentication[$this->provider]) && !empty($refresh_token)) {
$token = $this->get_access_token_from_refresh($refresh_token, true);
}
else if (isset($photonic_authentication[$this->provider])) {
$token = $photonic_authentication[$this->provider];
if (isset($token)) {
if ($this->is_token_expired($token)) {
$token = $this->get_access_token_from_refresh($refresh_token, true);
}
}
}
if (!empty($token)) {
$this->access_token = $token['oauth_token'];
}
}
function get_access_token_from_refresh($refresh_token, $save) {
$token = array();
$response = Photonic::http($this->access_token_url(), 'POST', array(
'client_id' => $this->client_id,
'client_secret' => $this->client_secret,
'refresh_token' => $refresh_token,
'grant_type' => 'refresh_token'
));
if (!is_wp_error($response)) {
$token = $this->parse_token($response);
if (!empty($token)) {
$token['client_id'] = $this->client_id;
}
if ($save) {
$this->save_token($token);
}
}
return $token;
}
function is_token_expired($token) {
if (empty($token)) {
return true;
}
if (!isset($token['oauth_token']) || !isset($token['oauth_token_created']) || !isset($token['oauth_token_expires'])) {
return true;
}
if (!isset($token['client_id']) || (isset($token['client_id']) && $token['client_id'] !== $this->client_id)) {
return true;
}
$current = time();
if ($token['oauth_token_created'] + $token['oauth_token_expires'] < $current) {
return true;
}
return false;
}
}
