getallheaders.php in Auth0 Single Sign On 8.2

File

vendor/ralouphie/getallheaders/src/getallheaders.php

<?php

if (!function_exists('getallheaders')) {

  /**
   * Get all HTTP header key/values as an associative array for the current request.
   *
   * @return string[string] The HTTP header key/value pairs.
   */
  function getallheaders() {
    $headers = array();
    $copy_server = array(
      'CONTENT_TYPE' => 'Content-Type',
      'CONTENT_LENGTH' => 'Content-Length',
      'CONTENT_MD5' => 'Content-Md5',
    );
    foreach ($_SERVER as $key => $value) {
      if (substr($key, 0, 5) === 'HTTP_') {
        $key = substr($key, 5);
        if (!isset($copy_server[$key]) || !isset($_SERVER[$key])) {
          $key = str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', $key))));
          $headers[$key] = $value;
        }
      }
      elseif (isset($copy_server[$key])) {
        $headers[$copy_server[$key]] = $value;
      }
    }
    if (!isset($headers['Authorization'])) {
      if (isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION'])) {
        $headers['Authorization'] = $_SERVER['REDIRECT_HTTP_AUTHORIZATION'];
      }
      elseif (isset($_SERVER['PHP_AUTH_USER'])) {
        $basic_pass = isset($_SERVER['PHP_AUTH_PW']) ? $_SERVER['PHP_AUTH_PW'] : '';
        $headers['Authorization'] = 'Basic ' . base64_encode($_SERVER['PHP_AUTH_USER'] . ':' . $basic_pass);
      }
      elseif (isset($_SERVER['PHP_AUTH_DIGEST'])) {
        $headers['Authorization'] = $_SERVER['PHP_AUTH_DIGEST'];
      }
    }
    return $headers;
  }
}