🐛 fix php-warnings on empty search #16
@ -8,12 +8,12 @@
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require(CMS_path("//config/nameserver.php")); //load config file at 'dnswatch/config/nameserver.php'
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// GET DOMAIN TO SEARCH FOR //
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$__domain = base64_decode($_POST["domain"]);
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// GET DOMAIN TO SEARCH FOR (IF IT IS SET) //
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$__domain = (isset($_POST["domain"]) ? base64_decode($_POST["domain"]) : NULL);
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// CHECK SYNTAX //
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if(preg_match("/^([a-z0-9\-]{1,64}\.){1,16}[a-z0-9]{2,}$/", $__domain)){
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// CHECK IF SET AND FOR SYNTAX //
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if($__domain !== NULL and preg_match("/^([a-z0-9\-]{1,64}\.){1,16}[a-z0-9]{2,}$/", $__domain)){
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//filter again for security
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$__domain = STR_filter($__domain, "abcdefghijklmnopqrstuvwxyz0123456789-."); //remove all chars in $__domain which are not contained in this list
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