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<?php |
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/* |
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* This file is part of the Shieldon package. |
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* |
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* (c) Terry L. <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Shieldon\Firewall\Kernel; |
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use Shieldon\Firewall\Component\ComponentInterface; |
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/* |
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* @since 1.0.0 |
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*/ |
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trait ComponentTrait |
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{ |
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/** |
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* Container for Shieldon components. |
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* |
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* @var array |
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*/ |
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public $component = []; |
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/** |
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* Get a component instance from component's container. |
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* |
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* @param string $name The component's class name. |
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* |
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* @return ComponentInterface|null |
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*/ |
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abstract function getComponent(string $name); |
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/** |
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* Initialize components. |
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* |
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* @return void |
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*/ |
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protected function initComponents() |
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{ |
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foreach (array_keys($this->component) as $name) { |
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$this->component[$name]->setIp($this->ip); |
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$this->component[$name]->setRdns($this->rdns); |
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// Apply global strict mode to all components by `strictMode()` if nesscessary. |
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if (isset($this->strictMode)) { |
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$this->component[$name]->setStrict($this->strictMode); |
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} |
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} |
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} |
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/** |
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* Check if current IP is trusted or not. |
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* |
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* @return bool |
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*/ |
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protected function isTrustedBot() |
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{ |
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if ($this->getComponent('TrustedBot')) { |
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// We want to put all the allowed robot into the rule list, so that the checking of IP's resolved hostname |
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// is no more needed for that IP. |
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if ($this->getComponent('TrustedBot')->isAllowed()) { |
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if ($this->getComponent('TrustedBot')->isGoogle()) { |
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// Add current IP into allowed list, because it is from real Google domain. |
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$this->action( |
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self::ACTION_ALLOW, |
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self::REASON_IS_GOOGLE |
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); |
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} elseif ($this->getComponent('TrustedBot')->isBing()) { |
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// Add current IP into allowed list, because it is from real Bing domain. |
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$this->action( |
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self::ACTION_ALLOW, |
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self::REASON_IS_BING |
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); |
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} elseif ($this->getComponent('TrustedBot')->isYahoo()) { |
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// Add current IP into allowed list, because it is from real Yahoo domain. |
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$this->action( |
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self::ACTION_ALLOW, |
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self::REASON_IS_YAHOO |
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); |
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} else { |
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// Add current IP into allowed list, because you trust it. |
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// You have already defined it in the settings. |
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$this->action( |
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self::ACTION_ALLOW, |
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self::REASON_IS_SEARCH_ENGINE |
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); |
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} |
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// Allowed robots not join to our traffic handler. |
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$this->result = self::RESPONSE_ALLOW; |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Check whether the IP is fake search engine or not. |
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* The method "isTrustedBot()" must be executed before this method. |
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* |
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* @return bool |
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*/ |
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protected function isFakeRobot(): bool |
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{ |
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if ($this->getComponent('TrustedBot')) { |
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if ($this->getComponent('TrustedBot')->isFakeRobot()) { |
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$this->action( |
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self::ACTION_DENY, |
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self::REASON_COMPONENT_TRUSTED_ROBOT |
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); |
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$this->result = self::RESPONSE_DENY; |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Check whether the IP is handled by IP compoent or not. |
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* |
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* @return bool |
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*/ |
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protected function isIpComponent(): bool |
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{ |
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if ($this->getComponent('Ip')) { |
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$result = $this->getComponent('Ip')->check(); |
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$actionCode = self::ACTION_DENY; |
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if (!empty($result)) { |
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switch ($result['status']) { |
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case 'allow': |
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$actionCode = self::ACTION_ALLOW; |
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$reasonCode = $result['code']; |
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break; |
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case 'deny': |
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$actionCode = self::ACTION_DENY; |
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$reasonCode = $result['code']; |
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break; |
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} |
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$this->action($actionCode, $reasonCode); |
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// $resultCode = $actionCode |
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return $this->result = $this->sessionHandler($actionCode); |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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terrylinooo /
shieldon
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