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<?php
$url = $_GET['url'];
$title = $url . ' archive';
function normalizeUrl(string &$url) : void {
$count_slashes = substr_count($url, "/");
if (str_ends_with($url, "/index.html")) {
$url = substr($url, 0, strlen($url) - strlen("/index.html"));
}
elseif (str_ends_with($url, "/index")) {
$url = substr($url, 0, strlen($url) - strlen("/index"));
}
elseif (str_ends_with($url, "/")) {
$url = substr($url, 0, -1);
}
}
function applyCorrectProtocol($url, $protocol) : string {
if (str_contains($url, $protocol)) {
return $url;
}
return $protocol . $url;
}
function doesWebsiteExist($url) : array {
// Check if the site exists with https
$https_url = applyCorrectProtocol($url, "https://");
if ($https_url != $url) {
$url_headers = @get_headers($https_url);
if ($url_headers && $url_headers[0] != 'HTTP/1.1 404 Not Found') {
return array(true, $https_url);
}
}
// Check if the site exists with http
$http_url = applyCorrectProtocol($url, "http://");
if ($http_url != $url) {
$url_headers = @get_headers($http_url);
if ($url_headers && $url_headers[0] != 'HTTP/1.1 404 Not Found') {
return array(true, $http_url);
}
}
// Check if the site exists as is
// Will take effect when the user has entered the https/http protocol with the site
$url_headers = @get_headers($url);
if ($url_headers && $url_headers[0] != 'HTTP/1.1 404 Not Found') {
return array(true, $url);
}
return array(false, $url);
}
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