gongpeione/githubOAuth.php

## githubOAuth.php
<?php
// error_reporting(E_ALL);
$code = $_GET['code'];
$token = $_COOKIE['access_token'];

if (!empty($code)) {
    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL,"https://github.com/login/oauth/access_token");
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS,
                "client_id=xxx&client_secret=xxx&code=$code");
    curl_setopt($ch, CURLOPT_HTTPHEADER, ['Accept: application/json']);

    // receive server response ...
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    $server_output = json_decode(curl_exec($ch));

    curl_close ($ch);

    // print_r($server_output);

    // $access_token = explode("&", $server_output);
    // $access_token = explode('=', $access_token[0])[1];

    setcookie(
        "access_token",
        $server_output->access_token,
        $maxage = time() + 3600000,
        $path = '',
        $domain = 'geeku.net',
        $secure = false,
        $httpOnly = true
    );
    header('Location: https://xxx');

} else if (!empty($token)) {

    $github_user = 'https://api.github.com/user';
    $github_graphQL = 'https://api.github.com/graphql';

    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, $github_graphQL);
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        "Authorization: " . "token " . $token,
        "User-Agent: GeeLogin"
    ]);
    // receive server response ...
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, '{"query":"{\n  viewer {\n    login,email\n  }\n}\n","variables":"{}","operationName":null}');

    $server_output = curl_exec ($ch);

    curl_close ($ch);

    $server_output_json = json_decode($server_output);
    if ($server_output_json->message == 'Bad credentials') {
        setcookie(
            "access_token",
            '',
            $maxage = 0,
            $path = '',
            $domain = 'geeku.net',
            $secure = false,
            $httpOnly = true
        );
        header('Location: https://xxx');
    } else {
        echo $server_output;
    }

} else {

?>

<!DOCTYPE html>
<html lang="zh_CN">
<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
    <meta name="renderer" content="webkit" />
    <meta http-equiv="Cache-Control" content="no-siteapp">

    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"/>

    <style>
        body, html {
            padding: 0;
            margin: 0;
            height: 100%;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        a.login {
            display: inline-block;
            padding: 10px 20px;
            border: 1px solid #ddd;
            color: #333;
            text-decoration: none;
            border-radius: 10px;
            font-size: 20px;
            font-family: 'Pingfang SC', 'Microsoft YaHei'
        }
        a.login:hover {
            border-color: #2ade6a;
        }
    </style>

</head>
<body>

<a href="https://github.com/login/oauth/authorize?client_id=xxx" class="login">Login with Github</a>

</body>
</html>

<?php } ?>
	<?php
	// error_reporting(E_ALL);
	$code = $_GET['code'];
	$token = $_COOKIE['access_token'];

	if (!empty($code)) {
	$ch = curl_init();

	curl_setopt($ch, CURLOPT_URL,"https://github.com/login/oauth/access_token");
	curl_setopt($ch, CURLOPT_POST, 1);
	curl_setopt($ch, CURLOPT_POSTFIELDS,
	"client_id=xxx&client_secret=xxx&code=$code");
	curl_setopt($ch, CURLOPT_HTTPHEADER, ['Accept: application/json']);

	// receive server response ...
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

	$server_output = json_decode(curl_exec($ch));

	curl_close ($ch);

	// print_r($server_output);

	// $access_token = explode("&", $server_output);
	// $access_token = explode('=', $access_token[0])[1];

	setcookie(
	"access_token",
	$server_output->access_token,
	$maxage = time() + 3600000,
	$path = '',
	$domain = 'geeku.net',
	$secure = false,
	$httpOnly = true
	);
	header('Location: https://xxx');

	} else if (!empty($token)) {

	$github_user = 'https://api.github.com/user';
	$github_graphQL = 'https://api.github.com/graphql';

	$ch = curl_init();

	curl_setopt($ch, CURLOPT_URL, $github_graphQL);
	curl_setopt($ch, CURLOPT_HTTPHEADER, [
	"Authorization: " . "token " . $token,
	"User-Agent: GeeLogin"
	]);
	// receive server response ...
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($ch, CURLOPT_POST, 1);
	curl_setopt($ch, CURLOPT_POSTFIELDS, '{"query":"{\n viewer {\n login,email\n }\n}\n","variables":"{}","operationName":null}');

	$server_output = curl_exec ($ch);

	curl_close ($ch);

	$server_output_json = json_decode($server_output);
	if ($server_output_json->message == 'Bad credentials') {
	setcookie(
	"access_token",
	'',
	$maxage = 0,
	$path = '',
	$domain = 'geeku.net',
	$secure = false,
	$httpOnly = true
	);
	header('Location: https://xxx');
	} else {
	echo $server_output;
	}

	} else {

	?>

	<!DOCTYPE html>
	<html lang="zh_CN">
	<head>

	<meta charset="UTF-8">

	<title>Document</title>

	<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
	<meta name="renderer" content="webkit" />
	<meta http-equiv="Cache-Control" content="no-siteapp">

	<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"/>

	<style>
	body, html {
	padding: 0;
	margin: 0;
	height: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
	}
	a.login {
	display: inline-block;
	padding: 10px 20px;
	border: 1px solid #ddd;
	color: #333;
	text-decoration: none;
	border-radius: 10px;
	font-size: 20px;
	font-family: 'Pingfang SC', 'Microsoft YaHei'
	}
	a.login:hover {
	border-color: #2ade6a;
	}
	</style>

	</head>
	<body>

	<a href="https://github.com/login/oauth/authorize?client_id=xxx" class="login">Login with Github</a>

	</body>
	</html>

	<?php } ?>