1 files changed, 48 insertions, 0 deletions
diff --git a/Authentication/Callback/index.php b/Authentication/Callback/index.php
new file mode 100644
index 0000000..6a6d8f1
--- /dev/null
+++ b/Authentication/Callback/index.php
@@ -0,0 +1,48 @@
+<?php
+
+header("Content-Type: text/plain");
+// TODO: handle errors
+
+if (!isset($_GET['code'])) {
+    die();
+}
+
+$appdata = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/app.json"), true);
+
+$crl = curl_init('https://privateauth.equestria.dev/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["id"] . ":" . $appdata["secret"]),
+    "Content-Type: application/x-www-form-urlencoded",
+    "Accept: application/json"
+]);
+curl_setopt($crl, CURLOPT_POSTFIELDS, "grant_type=authorization_code&redirect_uri=" . urlencode("http" . ($_SERVER['HTTPS'] ? "s" : "") . "://" . $_SERVER['HTTP_HOST'] . "/Authentication/Callback") . "&code=" . $_GET['code']);
+
+$result = curl_exec($crl);
+$result = json_decode($result, true);
+
+curl_close($crl);
+
+if (isset($result["access_token"])) {
+    $crl = curl_init('https://privateauth.equestria.dev/hub/api/rest/users/me');
+    curl_setopt($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);
+
+    if (!file_exists($_SERVER['DOCUMENT_ROOT'] . "/includes/tokens")) mkdir($_SERVER['DOCUMENT_ROOT'] . "/includes/tokens");
+
+    $token = bin2hex(random_bytes(32));
+    file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/tokens/" . $token, json_encode($result));
+    header("Set-Cookie: PEH2_SESSION_TOKEN=" . $token . "; SameSite=None; Path=/; Secure; HttpOnly; Expires=" . date("r", time() + (86400 * 730)));
+
+    header("Location: /Authentication/Success");
+    die();
+}
+\ No newline at end of file