Add files via upload

Signed-off-by: Sebastian <sebastian@wiuwiu.de>

Author: sebastiansterk

lib/http.php

@@ -0,0 +1,76 @@
+<?php
+/**
+ * Copyright (c) 2019 Sebastian Sterk <sebastian@wiuwiu.de>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+/**
+ * User authentication against a generic HTTP auth interface
+ *
+ * @category Apps
+ * @package  UserExternal
+ * @author   Sebastian Sterk https://wiuwiu.de/Imprint
+ * @license  http://www.gnu.org/licenses/agpl AGPL
+ */
+class OC_User_HTTP extends \OCA\user_external\Base {
+	private $hashAlgo;
+	private $accessKey;
+	private $authenticationEndpoint;
+
+	public function __construct($authenticationEndpoint, $hashAlgo, $accessKey) {
+		parent::__construct($authenticationEndpoint);
+		$this->authenticationEndpoint = $authenticationEndpoint;
+		$this->hashAlgo = $hashAlgo;
+		$this->accessKey = $accessKey;
+	}
+
+	public function sendUserData($user, $password){
+		if($this->hashAlgo !== false){
+			$password = $this->hashPassword($password);
+		}
+		$ch = curl_init();
+		curl_setopt($ch, CURLOPT_URL, $this->authenticationEndpoint);
+		curl_setopt($ch, CURLOPT_HEADER, true);
+		curl_setopt($ch, CURLOPT_NOBODY, true);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+		curl_setopt($ch, CURLOPT_POST, 1);
+		curl_setopt($ch, CURLOPT_POSTFIELDS, 
+			http_build_query(array(
+				'accessKey' => $this->accessKey,
+				'user' => $user,
+				'password' => $password
+				)
+			)
+		);
+		$response = curl_exec($ch);
+		$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+		curl_close($ch);
+		if($httpCode == 202){
+			return true;
+		} else{
+			return false;
+		}
+
+	}
+
+	public function hashPassword($password){
+		return hash($this->hashAlgo, $password);
+	}
+
+	public function checkPassword($uid, $password){
+		if(isset($uid) 
+		   && isset($password)) {
+
+			$authenticationStatus = $this->sendUserData($uid, $password);
+			if ($authenticationStatus) {
+				$uid = mb_strtolower($uid);
+                $this->storeUser($uid);
+				return $uid;
+			} else {
+				return false;
+			}
+		}
+	}
+}