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<?php
/** * *****************************************************
* CLASS::DUPX_Http
* Http Class Utility */
class DUPX_HTTP
{
/**
* Do an http post request with html form elements
* @param string $url A URL to post to
* @param string $data A valid key/pair combo $data = array('key1' => 'value1', 'key2' => 'value2')
* generated hidden form elements
* @return string An html form that will automatically post itself
*/
public static function post_with_html($url, $data)
{
$id = uniqid();
$html = "<form id='{$id}' method='post' action='{$url}' />\n";
foreach ($data as $name => $value)
{
$html .= "<input type='hidden' name='{$name}' value='{$value}' />\n";
}
$html .= "</form>\n";
$html .= "<script>$(document).ready(function() { $('#{$id}').submit(); });</script>";
echo $html;
}
/**
* 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 string $headers Optional header elements
* @return a string or FALSE on failure.
*/
public static function post($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 $headers Optional header elements
* @return a string or FALSE on failure.
*/
public static function get($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;
}
/**
* Gets the URL of the current request
* @param bool $show_query Include the query string in the URL
* @return string A URL
*/
public static function get_request_uri($show_query = true)
{
$isSecure = false;
if((!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') || ($_SERVER['SERVER_PORT'] == 443))
{
$isSecure = true;
}
elseif (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https' || !empty($_SERVER['HTTP_X_FORWARDED_SSL']) && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on')
{
$isSecure = true;
}
$protocol = $isSecure ? 'https' : 'http';
$url = "{$protocol}://{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}";
$url = ($show_query) ? $url : preg_replace('/\?.*/', '', $url);
return $url;
}
/**
* Check to see if the internet is accessible
* @param string $url 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, $timeout = 5)
{
if (function_exists('fsockopen'))
{
$port = isset($port) && is_integer($port) ? $port : 80;
$connected = @fsockopen($url, $port, $errno, $errstr, $timeout); //website and port
if ($connected)
{
$is_conn = true;
@fclose($connected);
}
else
{
$is_conn = false;
}
return $is_conn;
}
else
{
return false;
}
}
public static function parse_host($url)
{
$url = parse_url(trim($url));
if ($url == false)
{
return null;
}
return trim($url['host'] ? $url['host'] : array_shift(explode('/', $url['path'], 2)));
}
//PHP POST or GET requets
private static function php_get_post($url, $params, $headers = null, $method)
{
$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;
}
}
?>