private function AcquiaSearchApiClient::calculateAuthHeader in Acquia Search 3.x

Creates an authenticator based on a HMAC V2 signer.

Parameters

array $req_params: Request parameters.

string $authorization_string: Authorization string.

Return value

string Returns the signed auth header

1 call to AcquiaSearchApiClient::calculateAuthHeader()

AcquiaSearchApiClient::searchRequest in src/AcquiaSearchApiClient.php

Create and send a request to search controller.

File

src/AcquiaSearchApiClient.php, line 204

Class

AcquiaSearchApiClient

Acquia implementation of the Search API Client.

Namespace

Drupal\acquia_search

Code

private function calculateAuthHeader(array $req_params, string $authorization_string) : string {
  $signature_base_string = implode("\n", $req_params);
  $digest = hash_hmac('sha256', $signature_base_string, base64_decode($this->authInfo['key'], TRUE), TRUE);
  $signature = base64_encode($digest);
  $authorization_header_string = str_replace("=", "=\"", str_replace("&", "\",", $authorization_string));
  return 'acquia-http-hmac ' . $authorization_header_string . '",signature="' . $signature . '"';
}