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<?php
$server = "auth.equestria.horse";
header("Content-Type: text/plain");
if (!isset($_GET['code'])) {
die();
}
function encode($string) {
return preg_replace("/[^a-zA-Z0-9.]/m", "", base64_encode($string));
}
$appdata = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/email.json"), true);
$users = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/data/users.json"), true);
$crl = curl_init('https://' . $server . '/hub/api/rest/oauth2/token');
curl_setopt($crl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($crl, CURLINFO_HEADER_OUT, true);
curl_setopt($crl, CURLOPT_POST, true);
curl_setopt($crl, CURLOPT_HTTPHEADER, [
"Authorization: Basic " . base64_encode($appdata["oauth2_id"] . ":" . $appdata["oauth2_secret"]),
"Content-Type: application/x-www-form-urlencoded",
"Accept: application/json"
]);
curl_setopt($crl, CURLOPT_POSTFIELDS, "grant_type=authorization_code&redirect_uri=" . urlencode("https://" . ($_SERVER["HTTP_HOST"] === "192.168.1.121:81" ? "delta-staging" : "delta") . ".equestria.dev/login/oauth") . "&code=" . $_GET['code']);
$result = curl_exec($crl);
$result = json_decode($result, true);
curl_close($crl);
if (isset($result["access_token"])) {
$crl = curl_init('https://' . $server . '/hub/api/rest/users/me');
curl_setopt($crl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($crl, CURLINFO_HEADER_OUT, true);
curl_setopt($crl, CURLOPT_HTTPHEADER, [
"Authorization: Bearer " . $result["access_token"],
"Accept: application/json"
]);
$result = curl_exec($crl);
$result = json_decode($result, true);
$result["email"] = isset($result["profile"]["email"]) && $result["profile"]["email"]["verified"] ? $result["profile"]["email"]["email"] : "-";
if (!in_array($result["email"], array_keys($users))) {
header("Location: /login/?return=" . rawurlencode($_COOKIE["DeltaReturnPage"] ?? "/") . "&failed_oauth2_notfound&v=" . rawurlencode($result["email"]));
die();
}
if (!file_exists($_SERVER['DOCUMENT_ROOT'] . "/includes/tokens")) mkdir($_SERVER['DOCUMENT_ROOT'] . "/includes/tokens");
$token = encode(openssl_random_pseudo_bytes(128));
file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/tokens/" . $token, json_encode([
"user" => $users[$result["email"]],
"date" => date('c')
]));
setcookie("DeltaSession", $token, time() + (86400 * 90), "/", "", false, true);
if (isset($_COOKIE["DeltaReturnPage"])) {
header("Location: " . str_replace("\n", "", str_replace("\r", "", $_COOKIE["DeltaReturnPage"])));
} else {
header("Location: /");
}
setcookie("DeltaReturnPage", "");
die();
}
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