fipamo/brain/utility/HandleCors.php

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<?php
namespace brain\utility;
use brain\data\Settings;
class HandleCors
{
public function __construct()
{
//look to see if settings file exists. kinda important
if (file_exists("../config/settings.json")) {
//check settings to see if external api access is allowed
$config = new Settings();
$settings = $config->getSettings();
if ($settings["global"]["externalAPI"]) {
//echo "API STATUS: " . $settings["global"]["externalAPI"];
if ($settings["global"]["externalAPI"] == "true") {
//echo "API ACCESS ACTIVE";
// checks to see if origin is set
if (isset($_SERVER["HTTP_ORIGIN"])) {
// You can decide if the origin in $_SERVER['HTTP_ORIGIN'] is something you want to allow, or as we do here, just allow all
header("Access-Control-Allow-Origin: {$_SERVER["HTTP_ORIGIN"]}");
} else {
//No HTTP_ORIGIN set, so we allow any. You can disallow if needed here
//never allow just any domain, so turn CORS off if no No HTTP_ORIGIN is set
//header("Access-Control-Allow-Origin: *");
}
header("Access-Control-Allow-Credentials: true");
header("Access-Control-Max-Age: 600"); // cache for 10 minutes
if ($_SERVER["REQUEST_METHOD"] == "OPTIONS") {
if (isset($_SERVER["HTTP_ACCESS_CONTROL_REQUEST_METHOD"])) {
header(
"Access-Control-Allow-Methods: POST, GET, OPTIONS, DELETE, PUT"
);
} //Make sure you remove those you do not want to support
if (isset($_SERVER["HTTP_ACCESS_CONTROL_REQUEST_HEADERS"])) {
header(
"Access-Control-Allow-Headers: {$_SERVER["HTTP_ACCESS_CONTROL_REQUEST_HEADERS"]}"
);
}
//Just exit with 200 OK with the above headers for OPTIONS method
exit(0);
}
} else {
//echo "API ACCESS ACTIVE";
}
} else {
//value doesn't exist, so whatevs
//echo "API ACCESS VALUE NOT PRESENT";
}
} else {
//init state, so chill
}
}
}