GoogleAuth

Google.php

<?php

use \Nette\Utils\Json;

/**
 * Minimalistic Google OAuth2 connector
 * @author Mikuláš Dítě
 * @license BSD-3
 */
class Google extends Nette\Object
{

	const URL_AUTH = 'https://accounts.google.com/o/oauth2/auth';
	const URL_TOKEN = 'https://accounts.google.com/o/oauth2/token';
	const URL_INFO = 'https://www.googleapis.com/oauth2/v1/userinfo';



	/** @var string client_id */
	private $id;

	/** @var string client_secret */
	private $secret;



	public function __construct(array $config)
	{
		$this->id = $config['id'];
		$this->secret = $config['secret'];
	}



	public function getLoginUrl(array $args)
	{
		$query = [
			'response_type' => 'code',
			'client_id' => $this->id,
			'redirect_uri' => $args['redirect_uri'],
			'access_type' => 'online',
			'scope' => implode(' ', $args['scope']),
			//'approval_prompt' => 'force',
		];

		return self::URL_AUTH . '?' . http_build_query($query);
	}



	public function getToken($code, $uri)
	{
		$query = [
			'code' => $code,
			'redirect_uri' => $uri,
			'client_id' => $this->id,
			'client_secret' => $this->secret,
			'grant_type' => 'authorization_code',
		];

		$content = http_build_query($query);
		$c = curl_init();
		curl_setopt_array($c, [
			CURLOPT_URL => self::URL_TOKEN,
			CURLOPT_POST => TRUE,
			CURLOPT_POSTFIELDS => $content,
			CURLOPT_RETURNTRANSFER => TRUE,
			CURLOPT_SSL_VERIFYHOST => FALSE,
			CURLOPT_SSL_VERIFYPEER => FALSE,
			CURLOPT_HTTPHEADER => [
				'Content-type: application/x-www-form-urlencoded',
				'Content-length: ' . strlen($content)
			],
		]);
		$res = curl_exec($c);
		curl_close($c);
		$data = Json::decode($res);

		if (isset($data->error)) {
			throw new GoogleException("Error while obtaining token from code: {$data->error}");
		}

		return $data->access_token;
	}



	public function getInfo($token)
	{
		$res = file_get_contents(self::URL_INFO . '?' . http_build_query([
			'access_token' => $token,
		]));

		return Json::decode($res);
	}

}

class GoogleException extends RuntimeException {}

GoogleAuth.php

<?php

class GoogleAuth extends Nette\Object implements \Nette\Security\IAuthenticator
{

	/** @var Google */
	protected $google;

	/** @var Table\Users */
	protected $users;



	public function __construct(Google $google, Users $users)
	{
		$this->google = $google;
		$this->users = $users;
	}



	public function authenticate(array $data)
	{
		$info = end($data);
		$user = $this->users->findOneBy(['google_id' => $info->id]);

		// If user with this email exists, link the accounts
		if (!$user) {
			$user = $this->users->findOneBy(['mail' => $info->email]);
			if ($user) {
				$user->google_id = $info->id;
				$user->update();
			}
		}

		// otherwise, register new user
		if (!$user) {
			$user = $this->users->insert([
				'name' => $info->name,
				'google_id' => $info->id,
				'mail' => $info->email,
				'role' => '',
			]);
		}

		$roles = explode(';', $user->role);
		$roles[] = 'google';

		return new \Nette\Security\Identity($user->id, $roles, []);
	}

}

To jo, vyhodí. Lepší to nutně není, ale chtěl jsem to api podobné jako má facebook. Nechci přemýšlet, která služba má jaké api.
Jasně, nějaké ošetření by tam být mohlo. Ale to by to potom nebylo tak minimalistické ;)

MOVED TO https://github.com/Mikulas/nette-google-oauth2