Crawler Detector

Author: nsiatras

berry/mysql.php

@@ -5,5 +5,4 @@
 require_once(__DIR__ . "/mysql/MySQLCommandParameter.php");
 require_once(__DIR__ . "/mysql/MySQLCommandParameters.php");
 require_once(__DIR__ . "/mysql/MySQLDataReader.php");
-
 ?>

berry/utils.php

@@ -0,0 +1,5 @@
+<?php
+
+require_once(__DIR__ . "/utils/CrawlerDetector.php");
+
+?>

berry/utils/CrawlerDetector.php

@@ -0,0 +1,54 @@
+<?php
+
+/*
+  MIT License
+
+  Copyright (c) 2022 Nikos Siatras
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all
+  copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  SOFTWARE.
+ */
+
+class CrawlerDetector
+{
+
+    public function __construct()
+    {
+        
+    }
+
+    /**
+     * If the current client is a crawler then this method returns the crawler's name. 
+     * Otherwise it returns (String empty) ""
+     * 
+     * @return string returns the crawlers name or (String empty) "" 
+     */
+    public function getCrawlerName()
+    {
+        $USER_AGENT = $_SERVER['HTTP_USER_AGENT'];
+
+        if (preg_match('/bot|wget|crawl|slurp|spider|mediapartners|facebook/i', $USER_AGENT))
+        {
+            return $USER_AGENT;
+        }
+
+        return "";
+    }
+
+}
+?>