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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: JuKuCMS |
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* License: Apache 2.0 license |
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* User: Justin |
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* Date: 21.08.2018 |
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* Time: 13:16 |
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*/ |
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class ApiOAuth { |
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protected $row = array(); |
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public function __construct() { |
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// |
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} |
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/** |
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* load oauth token and check, if token exists |
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*/ |
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public function load (string $token) : bool { |
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if (Cache::contains("oauth", "token_" + $token)) { |
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$this->row = Cache::get("oauth", "token_" + $token); |
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if ($this->isExpired()) { |
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//clear token in cache, because key has expired |
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Cache::clear("oauth", "token_" + $token); |
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} |
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} else { |
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//get token from database |
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$this->row = Database::getInstance()->getRow("SELECT * FROM `{praefix}api_oauth` WHERE `secret_key` = :token AND `expires` > NOW(); ", array( |
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'token' => $token |
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)); |
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if (!$this->row) { |
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//cache value |
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Cache::put("oauth", "token_" + $token, $this->row); |
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} |
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} |
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return $this->row !== FALSE && !$this->isExpired(); |
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} |
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public function getKey () : string { |
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return $this->row['secret_key']; |
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} |
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public function isExpired () : bool { |
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return $this->row !== "0000-00-00 00:00:00" && strtotime($this->row['expires']) <= strtotime('now'); |
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} |
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public function getUserID () : int { |
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return (int) $this->row['userID']; |
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} |
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public function getCreatedTimestamp () : string { |
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return $this->row['created']; |
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} |
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/** |
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* create an oauth token for a specific user |
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* |
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* @param $userID integer id of user |
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* |
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* @return oauth key / token |
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*/ |
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public static function createToken (int $userID) : string { |
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//get setting |
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$key_length = (int) Settings::get("oauth_key_length", 255); |
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$expires_seconds = (int) Settings::get("oauth_expire_seconds", 86400);//default value of 1 day |
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//generate a random token |
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$token = PHPUtils::randomString($key_length); |
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//insert token into database |
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Database::getInstance()->execute("INSERT INTO `{praefix}api_oauth` ( |
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'secret_key', 'userID', 'created', 'expires' |
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) VALUES ( |
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:secret_key, :userID, CURRENT_TIMESTAMP, DATE_ADD(NOW(), INTERVAL :seconds SECOND) |
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)", array( |
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'secret_key' => $token, |
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'userID' => $userID, |
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'seconds' => $expires_seconds |
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)); |
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} |
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/** |
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* remove an oauth token for a specific user |
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* |
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* @param $token string secret key token |
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*/ |
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public static function removeToken (string $token) { |
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Database::getInstance()->execute("DELETE FROM `{praefix}api_oauth` WHERE `token` = :token; ", array('token' => $token)); |
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//clear token in cache, if exists |
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Cache::clear("oauth", "token_" + $token); |
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} |
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/** |
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* remove all expired tokens from database |
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*/ |
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public static function removeAllOutdatedTokensToken () { |
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Database::getInstance()->execute("DELETE FROM `{praefix}api_oauth` WHERE `expires` < NOW(); "); |
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//clear token cache |
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Cache::clear("oauth"); |
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} |
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} |
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?> |
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For hinted functions/methods where all return statements with the correct type are only reachable via conditions, ?null? gets implicitly returned which may be incompatible with the hinted type. Let?s take a look at an example: