I need to find out if a page is returning a 404 or 301 status code. I know I can write a php script to use cURL to return a value for javascript to read, but I am trying to simplify the process and kinda new. Right now I have an `onBlur` function that makes sure the webpage is at least in the correct format before they leave the field. But I would like it to also check the status of the page and I can't seem to find a solution for using cUrl directly with javascript or any examples of how this would be done. Anybody care to help me out please? Here is my validate.js that I am calling on the page...
function loadXMLDoc() {
var url = document.getElementById("webpage_url").value;
var xmlhttp;
if (window.XMLHttpRequest) { // code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
} else { // code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
document.getElementById("valid").innerHTML = xmlhttp.responseText;
}
}
xmlhttp.open("GET", "custom/modules/CT221_SEP_test/js/curltest.php/" + url, true);
xmlhttp.send();
}
function isURL() {
var url = document.getElementById("webpage_url");
var urlerr = document.getElementById("url_error");
var reg = /http:\/\/[A-Za-z0-9\.-]{3,}\.[A-Za-z]{3}/;
if (!reg.test(url.value)) {
urlerr.innerHTML = "Invalid WebPage Address";
url.focus();
} else {
loadXMLDoc();
urlerr.innerHTML = //calls success image";
}
}
YAHOO.util.Event.on("webpage_url", "blur", isURL);
then my curltest.php file looks like this...
$url = $_GET['url'];
function validateurl($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = curl_exec($ch);
curl_close($ch);
preg_match("/HTTP\/1\.[1|0]\s(\d{3})/", $data, $matches);
return $matches[1];
}
$code = validateurl($url);
if ($code != "404") {
echo "Webpage is valid";
} else[
echo "Webpage is not live";
} possible duplicate of cUrl Converting into Javascript possible?
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