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<?php
namespace PicoFarad\Response;
function force_download($filename)
{
header('Content-Disposition: attachment; filename="'.$filename.'"');
}
function content_type($mimetype)
{
header('Content-Type: '.$mimetype);
}
function status($status_code)
{
$sapi_name = php_sapi_name();
if (strpos($sapi_name, 'apache') !== false || $sapi_name === 'cli-server') {
header('HTTP/1.0 '.$status_code);
}
else {
header('Status: '.$status_code);
}
}
function redirect($url)
{
header('Location: '.$url);
exit;
}
function json(array $data, $status_code = 200)
{
status($status_code);
header('Content-Type: application/json');
echo json_encode($data);
exit;
}
function text($data, $status_code = 200)
{
status($status_code);
header('Content-Type: text/plain; charset=utf-8');
echo $data;
exit;
}
function html($data, $status_code = 200)
{
status($status_code);
header('Content-Type: text/html; charset=utf-8');
echo $data;
exit;
}
function xml($data, $status_code = 200)
{
status($status_code);
header('Content-Type: text/xml; charset=utf-8');
echo $data;
exit;
}
function js($data, $status_code = 200)
{
status($status_code);
header('Content-Type: text/javascript; charset=utf-8');
echo $data;
exit;
}
function binary($data, $status_code = 200)
{
status($status_code);
header('Content-Transfer-Encoding: binary');
header('Content-Type: application/octet-stream');
echo $data;
exit;
}
function csp(array $policies = array())
{
$policies['default-src'] = "'self'";
$values = '';
foreach ($policies as $policy => $hosts) {
if (is_array($hosts)) {
$acl = '';
foreach ($hosts as &$host) {
if ($host === '*' || $host === 'self' || strpos($host, 'http') === 0) {
$acl .= $host.' ';
}
}
}
else {
$acl = $hosts;
}
$values .= $policy.' '.trim($acl).'; ';
}
header('Content-Security-Policy: '.$values);
}
function nosniff()
{
header('X-Content-Type-Options: nosniff');
}
function xss()
{
header('X-XSS-Protection: 1; mode=block');
}
function hsts()
{
header('Strict-Transport-Security: max-age=31536000');
}
function xframe($mode = 'DENY', array $urls = array())
{
header('X-Frame-Options: '.$mode.' '.implode(' ', $urls));
}
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