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<?php |
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/** |
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* Class MaintenanceModeExtension. |
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* |
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* throw a 503 if mysite/down exists |
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* |
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* @property Controller $owner |
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*/ |
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class MaintenanceModeExtension extends Extension |
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{ |
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/** |
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* @throws SS_HTTPResponse_Exception |
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*/ |
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public function onBeforeInit() |
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{ |
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if($this->isDownForMaintenance() && !$this->clientIpIsAllowedInMaintenanceMode()) |
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{ |
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$this->throw503(); |
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} |
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} |
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/** |
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* @return bool |
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*/ |
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public function isDownForMaintenance() |
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{ |
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return file_exists(BASE_PATH.'/mysite/down'); |
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} |
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/** |
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* Somehow $this->owner->httpError keeps the website spinning. |
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* |
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* Maybe not very Silverstripe'sch, but at least this works |
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* |
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* @throws SS_HTTPResponse_Exception |
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*/ |
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protected function throw503() |
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{ |
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$message = 'Website is down for maintenance'; |
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$errorFile = $this->get503File(); |
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$content = is_file($errorFile) ? file_get_contents($errorFile) : '<h1>'.$message.'</h1>'; |
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throw new SS_HTTPResponse_Exception(new SS_HTTPResponse($content, 503, $message)); |
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} |
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/** |
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* @return string |
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*/ |
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protected function get503File() |
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{ |
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$custom = BASE_PATH.(string)Config::inst()->get('MaintenanceMode', 'file'); |
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return is_file($custom) ? $custom : BASE_PATH.'/assets/error-503.html'; |
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} |
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/** |
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* @return bool |
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*/ |
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protected function clientIpIsAllowedInMaintenanceMode() |
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{ |
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$ip = $this->getClientIp(); |
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$allowed = $this->getAllowedIpAddresses(); |
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return (bool)$allowed && $ip && in_array($ip, $allowed); |
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} |
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/** |
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* @return string|false |
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*/ |
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protected function getClientIp() |
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{ |
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$request = $this->owner->getRequest(); |
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return (bool)$request ? $request->getIP() : false; |
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} |
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/** |
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* @return array |
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*/ |
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protected function getAllowedIpAddresses() |
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{ |
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return (array)Config::inst()->get('MaintenanceMode', 'allowed_ips'); |
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} |
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} |
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.