public static function request_headers()
{
if (function_exists("apache_request_headers")) {
return new HTTP_Header(apache_request_headers());
} elseif (extension_loaded("http")) {
$headers = version_compare(phpversion("http"), "2.0.0", ">=") ? \http\Env::getRequestHeader() : http_get_request_headers();
return new HTTP_Header($headers);
}
$headers = array();
if (!empty($_SERVER["CONTENT_TYPE"])) {
$headers["content-type"] = $_SERVER["CONTENT_TYPE"];
}
if (!empty($_SERVER["CONTENT_LENGTH"])) {
$headers["content-length"] = $_SERVER["CONTENT_LENGTH"];
}
foreach ($_SERVER as $key => $value) {
if (strpos($key, "HTTP_") !== 0) {
continue;
}
$headers[str_replace("_", "-", substr($key, 5))] = $value;
}
return new HTTP_Header($headers);
}
/**
* Format an error as HTML
* @param string $title
* @param string $message
* @param int $code
* @param string $trace
* @param array $title_tag
* @param array $message_tag
* @param array $trace_tag
* @return string
*/
public static function htmlError($title, $message, $code, $trace = null, array $title_tag = ["h1"], array $message_tag = ["p"], array $trace_tag = ["pre", "style='font-size:smaller;overflow-x:scroll'"])
{
HTTP::setResponseCode($code);
$html = sprintf("<%s>%s</%s>\n<%s>%s</%s>\n", implode(" ", $title_tag), $title, $title_tag[0], implode(" ", $message_tag), $message, $message_tag[0]);
if ($trace_tag) {
if (!isset($trace)) {
ob_start();
debug_print_backtrace();
$trace = ob_get_clean();
}
if (!empty($trace)) {
$html .= sprintf("<%s>%s</%s>\n", implode(" ", $trace_tag), $trace, $trace_tag[0]);
}
}
return $html;
}
/**
* @param string $key
* @return mixed
*/
protected function getValue($key)
{
return Env::getRequestHeader($key);
}
/**
* Parses the the HTTP request headers and returns an array containing
* key value pairs. This method is slow, but provides an accurate
* representation of the HTTP request.
*
* // Get http headers into the request
* $request->headers = HTTP::request_headers();
*
* @return HTTP_Header
*/
public static function request_headers()
{
// If running on apache server
if (function_exists('apache_request_headers')) {
// Return the much faster method
return new HTTP_Header(apache_request_headers());
} elseif (extension_loaded('http')) {
// Return the much faster method
$headers = version_compare(phpversion('http'), '2.0.0', '>=') ? \http\Env::getRequestHeader() : http_get_request_headers();
return new HTTP_Header($headers);
}
// Setup the output
$headers = array();
// Parse the content type
if (!empty($_SERVER['CONTENT_TYPE'])) {
$headers['content-type'] = $_SERVER['CONTENT_TYPE'];
}
// Parse the content length
if (!empty($_SERVER['CONTENT_LENGTH'])) {
$headers['content-length'] = $_SERVER['CONTENT_LENGTH'];
}
foreach ($_SERVER as $key => $value) {
// If there is no HTTP header here, skip
if (strpos($key, 'HTTP_') !== 0) {
continue;
}
// This is a dirty hack to ensure HTTP_X_FOO_BAR becomes X-FOO-BAR
$headers[str_replace('_', '-', substr($key, 5))] = $value;
}
return new HTTP_Header($headers);
}
