<?php
defined("DUPXABSPATH") or die("");
/**
* CLASS::DUPX_Http
* Http Class Utility
*/
class DUPX_HTTP
{
/**
* Do an http post request with curl or php code
*
* @param string $url A URL to post to
* @param string $params A valid key/pair combo $data = array('key1' => 'value1', 'key2' => 'value2');
* @param array $headers Optional header elements
*
* @return string or FALSE on failure.
*/
public static function post($url, $params = array(), $headers = null)
{
//PHP POST
if (!function_exists('curl_init')) {
return self::php_get_post($url, $params, $headers = null, 'POST');
}
//CURL POST
$headers_on = isset($headers) && array_count_values($headers);
$params = http_build_query($params);
$ch = curl_init();
// Return contents of transfer on curl_exec
// Allow self-signed certs
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, $headers_on);
if ($headers_on) {
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
}
curl_setopt($ch, CURLOPT_POST, count($params));
curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
$response = curl_exec($ch);
curl_close($ch);
return $response;
}
/**
* Do an http post request with curl or php code
*
* @param string $url A URL to get. If $params is not null then all query strings will be removed.
* @param string $params A valid key/pair combo $data = array('key1' => 'value1', 'key2' => 'value2');
* @param string $headers Optional header elements
*
* @return string|bool a string or FALSE on failure.
*/
public static function get($url, $params = array(), $headers = null)
{
//PHP GET
if (!function_exists('curl_init')) {
return self::php_get_post($url, $params, $headers = null, 'GET');
}
//Remove query string if $params are passed
$full_url = $url;
if (count($params)) {
$url = preg_replace('/\?.*/', '', $url);
$full_url = $url . '?' . http_build_query($params);
}
$headers_on = isset($headers) && array_count_values($headers);
$ch = curl_init();
// Return contents of transfer on curl_exec
// Allow self-signed certs
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_URL, $full_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, $headers_on);
if ($headers_on) {
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
}
$response = curl_exec($ch);
curl_close($ch);
return $response;
}
/**
* Check to see if the internet is accessible
*
* @param string $host A URL e.g without prefix "ajax.googleapis.com"
* @param string $port A valid port number
*
* @return bool
*/
public static function is_url_active($url, $port = 443, $timeout = 5)
{
//localhost will not have cpanel in most cases
if (strpos($url, 'localhost:2083') !== false) {
return false;
}
switch (true) {
case function_exists('curl_init'):
return self::is_url_active_curl($url, $port, $timeout);
break;
case function_exists('fsockopen'):
return self::is_url_active_fsockopen($url, $port, $timeout);
break;
default:
return false;
break;
}
}
/**
* Returns the host part of a URL
*
* @param string $url A valid URL
*
* @return string
*/
public static function parse_host($url)
{
$url = parse_url(trim($url));
if ($url == false) {
return null;
}
return trim($url['host'] ? $url['host'] : array_shift(explode('/', $url['path'], 2)));
}
/**
* Return the current page URL
*
* @param bool $withQuery Return the URL with its string
*
* @return string
*/
public static function get_page_url($withQuery = true)
{
$protocol = (!empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off')
|| (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) === 'https')
|| (!empty($_SERVER['HTTP_FRONT_END_HTTPS']) && strtolower($_SERVER['HTTP_FRONT_END_HTTPS']) !== 'off')
|| (isset($_SERVER['SERVER_PORT']) && intval($_SERVER['SERVER_PORT']) === 443) ? 'https' : 'http';
$uri = $protocol . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
return $withQuery ? $uri : str_replace('?' . $_SERVER['QUERY_STRING'], '', $uri);
}
//PHP POST or GET requets
private static function php_get_post($url, $params, $headers = null, $method = 'POST')
{
$full_url = $url;
if ($method == 'GET' && count($params)) {
$url = preg_replace('/\?.*/', '', $url);
$full_url = $url . '?' . http_build_query($params);
}
$data = array('http' => array(
'method' => $method,
'content' => http_build_query($params)));
if ($headers !== null) {
$data['http']['header'] = $headers;
}
$ctx = stream_context_create($data);
$fp = @fopen($full_url, 'rb', false, $ctx);
if (!$fp) {
throw new Exception("Problem with $full_url, $php_errormsg");
}
$response = @stream_get_contents($fp);
if ($response === false) {
throw new Exception("Problem reading data from $full_url, $php_errormsg");
}
return $response;
}
//Check URL with fsockopen/
private static function is_url_active_fsockopen($url, $port = 443, $timeout = 5)
{
try {
$host = parse_url($url, PHP_URL_HOST);
$host = DUPX_U::is_ssl() ? "ssl://{$host}" : $host;
$errno = 0;
$message = 'Error with fsockopen';
$connection = @fsockopen($host, $port, $code, $message, $timeout);
if (!is_resource($connection)) {
return false;
}
@fclose($connection);
return true;
} catch (Exception $e) {
return false;
}
}
//Check URL with curl
private static function is_url_active_curl($url, $port = 443, $timeout = 5)
{
try {
$result = false;
$url = filter_var($url, FILTER_VALIDATE_URL);
$handle = curl_init($url);
/* Set curl parameter */
curl_setopt_array($handle, array(
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_NOBODY => true,
CURLOPT_HEADER => false,
CURLOPT_RETURNTRANSFER => false,
CURLOPT_SSL_VERIFYHOST => false,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_TIMEOUT => $timeout,
CURLOPT_PORT => $port
));
$response = curl_exec($handle);
$httpCode = curl_getinfo($handle, CURLINFO_EFFECTIVE_URL); // Try to get the last url
$httpCode = curl_getinfo($handle, CURLINFO_HTTP_CODE); // Get http status from last url
/* Check for 200 (file is found). */
if ($httpCode == 200) {
$result = true;
}
curl_close($handle);
return $result;
} catch (Exception $e) {
return false;
}
}
}
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