Remove OC_User_HTTP

Addresses No. 1 from https://github.com/owncloud/core/issues/14847

lib/private/user/http.php

-<?php
-
-/**
-* ownCloud
-*
-* @author Frank Karlitschek
-* @copyright 2012 Robin Appelman icewind@owncloud.com
-*
-* This library is free software; you can redistribute it and/or
-* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
-* License as published by the Free Software Foundation; either
-* version 3 of the License, or any later version.
-*
-* This library is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
-*
-* You should have received a copy of the GNU Affero General Public
-* License along with this library.  If not, see <http://www.gnu.org/licenses/>.
-*
-*/
-
-/**
- * user backend using http auth requests
- */
-class OC_User_HTTP extends OC_User_Backend implements \OCP\IUserBackend {
-	/**
-	 * split http://user@host/path into a user and url part
-	 * @param string $url
-	 * @return array
-	 */
-	private function parseUrl($url) {
-		$parts=parse_url($url);
-		$url=$parts['scheme'].'://'.$parts['host'];
-		if(isset($parts['port'])) {
-			$url.=':'.$parts['port'];
-		}
-		$url.=$parts['path'];
-		if(isset($parts['query'])) {
-			$url.='?'.$parts['query'];
-		}
-		return array($parts['user'], $url);
-
-	}
-
-	/**
-	 * check if an url is a valid login
-	 * @param string $url
-	 * @return boolean
-	 */
-	private function matchUrl($url) {
-		return ! is_null(parse_url($url, PHP_URL_USER));
-	}
-
-	/**
-	 * Check if the password is correct
-	 * @param string $uid The username
-	 * @param string $password The password
-	 * @return string
-	 *
-	 * Check if the password is correct without logging in the user
-	 * returns the user id or false
-	 */
-	public function checkPassword($uid, $password) {
-		if(!$this->matchUrl($uid)) {
-			return false;
-		}
-		list($user, $url)=$this->parseUrl($uid);
-
-		$ch = curl_init();
-		curl_setopt($ch, CURLOPT_URL, $url);
-		curl_setopt($ch, CURLOPT_USERPWD, $user.':'.$password);
-		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
-		curl_setopt($ch, CURLOPT_PROTOCOLS,  CURLPROTO_HTTP | CURLPROTO_HTTPS);
-		curl_setopt($ch, CURLOPT_REDIR_PROTOCOLS,  CURLPROTO_HTTP | CURLPROTO_HTTPS);
-
-		curl_exec($ch);
-
-		$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
-
-		curl_close($ch);
-
-		if($status === 200) {
-			return $uid;
-		}
-
-		return false;
-	}
-
-	/**
-	 * check if a user exists
-	 * @param string $uid the username
-	 * @return boolean
-	 */
-	public function userExists($uid) {
-		return $this->matchUrl($uid);
-	}
-
-	/**
-	* get the user's home directory
-	* @param string $uid the username
-	* @return string|false
-	*/
-	public function getHome($uid) {
-		if($this->userExists($uid)) {
-			return OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" ) . '/' . $uid;
-		}else{
-			return false;
-		}
-	}
-
-	/**
-	 * Backend name to be shown in user management
-	 * @return string the name of the backend to be shown
-	 */
-	public function getBackendName(){
-		return 'HTTP';
-	}
-}