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<?php |
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/* |
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* This file is part of the php-gelf package. |
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* |
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* (c) Benjamin Zikarsky <http://benjamin-zikarsky.de> |
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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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namespace Gelf; |
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use RuntimeException; |
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/** |
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* Validates a given message according to the GELF standard |
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* |
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* @author Benjamin Zikarsky <[email protected]> |
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* @author Joe Green |
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*/ |
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class MessageValidator implements MessageValidatorInterface |
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{ |
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public function validate(MessageInterface $message, &$reason = "") |
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{ |
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switch ($message->getVersion()) { |
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case "1.0": |
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return $this->validate0100($message, $reason); |
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case "1.1": |
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return $this->validate0101($message, $reason); |
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} |
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throw new RuntimeException( |
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sprintf( |
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"No validator for message version '%s'", |
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$message->getVersion() |
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) |
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); |
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} |
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/** |
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* Validates a message according to 1.0 standard |
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* |
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* @param MessageInterface $message |
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* @param string &$reason reason for the validation fail |
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* @return bool |
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*/ |
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public function validate0100(MessageInterface $message, &$reason = "") |
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{ |
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if (self::isEmpty($message->getHost())) { |
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$reason = "host not set"; |
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return false; |
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} |
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if (self::isEmpty($message->getShortMessage())) { |
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$reason = "short-message not set"; |
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return false; |
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} |
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if (self::isEmpty($message->getVersion())) { |
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$reason = "version not set"; |
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return false; |
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} |
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if ($message->hasAdditional('id')) { |
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$reason = "additional field 'id' is not allowed"; |
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return false; |
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} |
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return true; |
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} |
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/** |
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* Validates a message according to 1.1 standard |
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* |
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* @param MessageInterface $message |
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* @param string &$reason |
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* @return bool |
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*/ |
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public function validate0101(MessageInterface $message, &$reason = "") |
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{ |
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// 1.1 incorporates 1.0 validation standar |
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if (!$this->validate0100($message, $reason)) { |
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return false; |
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} |
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foreach ($message->getAllAdditionals() as $key => $value) { |
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if (!preg_match('#^[\w\.\-]*$#', $key)) { |
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$reason = sprintf( |
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"additional key '%s' contains invalid characters", |
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$key |
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); |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* Checks that a given scalar will later translate |
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* to a non-empty message element |
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* |
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* Fails on null, false and empty strings |
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* |
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* @param string $scalar |
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* @return bool |
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*/ |
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public static function isEmpty($scalar) |
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{ |
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return strlen($scalar) < 1; |
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} |
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} |
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bzikarsky /
gelf-php
