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<?php |
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/** |
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* Copyright (c) 2018 Justin Kuenzel (jukusoft.com) |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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/** |
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* Project: RocketCMS |
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* License: Apache 2.0 license |
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* User: Justin |
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* Date: 17.04.2018 |
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* Time: 14:28 |
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*/ |
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class Plugin_HTTPAuth_HTTPAuth { |
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//http://php.net/manual/de/features.http-auth.php |
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public static function headerEvent () { |
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//get preferences first |
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$prefs = new Preferences("plugin_httpauth"); |
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$activated = $prefs->get("activated", true); |
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if (!$activated) { |
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return; |
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} |
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//check, if user is logged in |
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if (User::current()->isLoggedIn()) { |
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//http auth is not required, because user is already logged in |
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return; |
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} |
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//check, if credentials was already send |
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if (!isset($_SERVER['PHP_AUTH_USER']) || !isset($_SERVER['PHP_AUTH_PW'])) { |
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self::sendHeader($prefs); |
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} else { |
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$username = $_SERVER['PHP_AUTH_USER']; |
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$password = $_SERVER['PHP_AUTH_PW']; |
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//try to login |
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$res = User::current()->loginByUsername($username, $password); |
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if ($res['success'] !== true) { |
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//send http header again |
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self::sendHeader($prefs); |
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} else { |
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//login successful, show redirect |
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if (isset($_REQUEST['redirect_url']) && !empty($_REQUEST['redirect_url'])) { |
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//TODO: check for security issues, maybe we should check if redirect_url is a known domain |
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header("Location: " . urldecode($_REQUEST['redirect_url'])); |
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//flush gzip buffer |
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ob_end_flush(); |
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exit; |
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} else { |
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//redirect to index page |
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//get domain |
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$domain = Registry::singleton()->getObject("domain"); |
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//generate index url |
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$index_url = DomainUtils::generateURL($domain->getHomePage()); |
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header("Location: " . $index_url); |
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//flush gzip buffer |
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ob_end_flush(); |
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exit; |
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} |
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} |
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} |
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} |
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protected static function sendHeader (Preferences $prefs) { |
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$realm_name = $prefs->get("realm_name", "Website"); |
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//send http header, so browser will show a login form |
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header('WWW-Authenticate: Basic realm="' . $realm_name . '"'); |
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header('HTTP/1.0 401 Unauthorized'); |
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//text which will be sended, if user clicks on abort |
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echo $prefs->get("abort_text", "<h1>401 Authorization Required</h1>"); |
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ob_end_flush(); |
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exit; |
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} |
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public static function logoutEvent () { |
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//because browser safes http auth credentials by default, we need to do a little trick to clear browser auth cache |
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header("Location: " . DomainUtils::getProtocol() . "foo:bar@" . DomainUtils::getBaseURL(true)); |
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//echo "Location: " . DomainUtils::getProtocol() . "foo:bar@" . DomainUtils::getBaseURL(true); |
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exit; |
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} |
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} |
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?> |
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JuKu /
JuKuCMS
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In general, usage of exit should be done with care and only when running in a scripting context like a CLI script.