/**
* Set HTTP response header.
* @param string $header HTTP response header
* @param boolean $replace (optional) avoid setting HTTP response header if it would replace an
* existing header. This differs from the PHP header() $replace param which adds a header
* if it would otherwise replace and existing header.
*/
function setResponseHeader($header, $replace = true)
{
/* Use our PHP VM for testability */
global $gallery;
$phpVm = $gallery->getPhpVm();
$responseHeaders =& MyOOS_Utilities::_getResponseHeaders();
/* Special case for HTTP status codes. See http://php.net/header */
$key = 'status';
if (strncasecmp($header, 'HTTP/', 5)) {
$key = MyOOS_Utilities::strToLower(substr($header, 0, strpos($header, ':')));
}
/* Avoid setting HTTP response header if it would replace an existing header */
if (!$replace && (!empty($responseHeaders[$key]) || $key == 'location' && !empty($responseHeaders['status']) && !preg_match('/^HTTP\\/[0-9]\\.[0-9] 3/', $responseHeaders['status']))) {
return;
}
$phpVm->header($header);
$responseHeaders[$key] = $header;
/*
* Special case for the Location: header. Set HTTP status code unless some 3xx status code
* is already set. See http://php.net/header
*/
if ($key == 'location' && (empty($responseHeaders['status']) || !preg_match('/^HTTP\\/[0-9]\\.[0-9] 3/', $responseHeaders['status']))) {
$responseHeaders['status'] = 'HTTP/1.0 302 Found';
}
}
