degroot

// note that you have to handle splits with \n, \r, and \t later since they *are* allowed in some inputs $val = preg_replace('/([\x00-\x08,\x0b-\x0c,\x0e-\x19])/', '', $val); // straight replacements, the user should never need these since they're normal characters // this prevents like

$search = 'abcdefghijklmnopqrstuvwxyz'; $search .= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; $search .= '1234567890!@#$%^&*()'; $search .= '~`";:?+/={}[]-_|\'\\'; for ($i = 0; $i < strlen($search); $i++) { // ;? matches the ;, which is optional // 0{0,7} matches any padded zeros, which are optional and go up to 8 chars // @ @ search for the hex values $val = preg_replace('/(&#[xX]0{0,8}'.dechex(ord($search[$i])).';?)/i', $search[$i], $val); // with a ; // @ @ 0{0,7} matches '0' zero to seven times $val = preg_replace('/(�{0,8}'.ord($search[$i]).';?)/', $search[$i], $val); // with a ; } // now the only remaining whitespace attacks are \t, \n, and \r $ra1 = Array('javascript', 'vbscript', 'expression', 'applet', 'meta', 'xml', 'blink', 'link', 'style', 'script', 'embed', 'object', 'iframe', 'frame', 'frameset', 'ilayer', 'layer', 'bgsound', 'title', 'base'); $ra2 = Array('onabort', 'onactivate', 'onafterprint', 'onafterupdate', 'onbeforeactivate', 'onbeforecopy', 'onbeforecut', 'onbeforedeactivate', 'onbeforeeditfocus', 'onbeforepaste', 'onbeforeprint', 'onbeforeunload', 'onbeforeupdate', 'onblur', 'onbounce', 'oncellchange', 'onchange', 'onclick', 'oncontextmenu', 'oncontrolselect', 'oncopy', 'oncut', 'ondataavailable', 'ondatasetchanged', 'ondatasetcomplete', 'ondblclick', 'ondeactivate', 'ondrag', 'ondragend', 'ondragenter', 'ondragleave', 'ondragover', 'ondragstart', 'ondrop', 'onerror', 'onerrorupdate', 'onfilterchange', 'onfinish', 'onfocus', 'onfocusin', 'onfocusout', 'onhelp', 'onkeydown', 'onkeypress', 'onkeyup', 'onlayoutcomplete', 'onload', 'onlosecapture', 'onmousedown', 'onmouseenter', 'onmouseleave', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'onmousewheel', 'onmove', 'onmoveend', 'onmovestart', 'onpaste', 'onpropertychange', 'onreadystatechange', 'onreset', 'onresize', 'onresizeend', 'onresizestart', 'onrowenter', 'onrowexit', 'onrowsdelete', 'onrowsinserted', 'onscroll', 'onselect', 'onselectionchange', 'onselectstart', 'onstart', 'onstop', 'onsubmit', 'onunload'); $ra = array_merge($ra1, $ra2); $found = true; // keep replacing as long as the previous round replaced something while ($found == true) { $val_before = $val; for ($i = 0; $i < sizeof($ra); $i++) { $pattern = '/'; for ($j = 0; $j < strlen($ra[$i]); $j++) { if ($j > 0) { $pattern .= '('; $pattern .= '(&#[xX]0{0,8}([9ab]);)'; $pattern .= '|'; $pattern .= '|(�{0,8}([9|10|13]);)'; $pattern .= ')*'; } $pattern .= $ra[$i][$j]; } $pattern .= '/i'; $replacement = substr($ra[$i], 0, 2).''.substr($ra[$i], 2); // add in <> to nerf the tag $val = preg_replace($pattern, $replacement, $val); // filter out the hex tags if ($val_before == $val) { // no replacements were made, so exit the loop $found = false; } } } return $val; } #====================================================================================================================== # Variables #====================================================================================================================== $succ_mail = ""; $errMsg = ""; $page= get_param("page"); $pageid = get_param("pid"); $oid = get_param("oid"); $parentid = get_param("parent_id"); $topid = get_param("top_id"); //echo $page.$pageid; //die; #====================================================================================================================== #Submit #====================================================================================================================== if(isset($_POST['Submit'])) { $fldmessage = get_param("txt_message"); $fldname = get_param("txt_name"); $fldemail = get_param("txt_email"); $fldfrname = get_param("txt_frname"); $fldfremail = get_param("txt_fremail"); #====================================================================================================================== # Validation #====================================================================================================================== /* $rules[] = "required,txt_name,* Please enter name"; $rules[] = "required,txt_email,* Please eneter email"; $rules[] = "if:txt_email!='',valid_email,txt_email,* Please enter valid email"; $rules[] = "required,txt_frname,* Please enter friends name"; $rules[] = "required,txt_fremail,* Please enter friends email"; $rules[] = "if:txt_fremail!='',valid_email,txt_fremail,* Please enter valid friends email"; */ if(isset($_POST['txt_email'])) extract($_POST); //print_r($_POST); if( $_SESSION['security_code'] == $txtCaptcha && !empty($_SESSION['security_code'] ) ) { unset($_SESSION['security_code']); $errMsg = ''; } else $errMsg = 'Sorry, you have provided an invalid security code'; /*$errors = validateFields($_POST, $rules); foreach ($errors as $error) $errMsg .= $error."
"; */ #====================================================================================================================== # Select #====================================================================================================================== if(strlen($errMsg) <= 0) { switch ($page) { case "content": if($oid != "") { $title = FindOtherValue("content_other","pageid",$oid,"pagename",$db); $url = "$siteURL"."page.php?oid=$oid"; } elseif($pageid != "") { $title = FindOtherValue("content","pageid",$pageid,"pagename",$db); $url = "$siteURL"."page.php?pid=$pageid"; } break; case "contact": $title = "Contact Us"; $url = "$siteURL"."contact_us.php"; break; case "news-details": if($pageid != "") { $title = FindOtherValue("article_master","news_id",$pageid,"news_title",$db); $url = "$siteURL"."news_details.php?news_id=$pageid"; } break; case "events-details": if($pageid != "") { $title = FindOtherValue("events_master","events_id",$pageid,"events_title",$db); $url = "$siteURL"."events_details.php?events_id=$pageid"; } break; case "events-details": if($pageid != "") { $title = FindOtherValue("events_master","events_id",$pageid,"events_title",$db); $url = "$siteURL"."events_details.php?events_id=$pageid"; } break; case "careers-details": if($pageid != "") { $title = FindOtherValue("careers_master","careers_id",$pageid,"careers_title",$db); $url = "$siteURL"."careers_details.php?careers_id=$pageid"; } break; } $to = $fldfremail; $from = $fldemail; $subject = "Page Recommended By Your Friend".$fldname; $headers = "From: $from\r\n"; $headers .= 'MIME-Version: 1.0' . "\r\n"; $headers .= 'Content-type: text/html; charset=utf-8' . "\r\n"; $message = '

	Page Recommended By Your Friend
	Hi '.$fldfrname.',
	Your Friend '.$fldname.' has recommended a page
	Page:Click On this Link:'.$title.'

'; //echo $message; //die; $succ_mail = @mail($to, $subject, $message, $headers); //store in database $sqlInsert = "INSERT INTO emailtofriend (sendername, senderemail, receivername, receiveremail, message, url, date) VALUES('$fldname', '$fldemail', '$fldfrname', '$fldfremail', '$fldmessage', '$url', NOW())"; mysql_query($sqlInsert); } } ?> degroot

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