public function SearchSubscriber::getDerivedKey in Acquia Search Multiple Indexes 8

Get the derived key for the solr hmac using the information shared with acquia.com.

Parameters

null $env_id:

Return value

mixed

2 calls to SearchSubscriber::getDerivedKey()

SearchSubscriber::calculateAuthCookie in src/EventSubscriber/SearchSubscriber.php

Creates an authenticator based on a data string and HMAC-SHA1.

SearchSubscriber::validateResponse in src/EventSubscriber/SearchSubscriber.php

Validate the authenticity of returned data using a nonce and HMAC-SHA1.

File

src/EventSubscriber/SearchSubscriber.php, line 137

Class

SearchSubscriber

Namespace

Drupal\acquia_search_multi_subs\EventSubscriber

Code

public function getDerivedKey($env_id = NULL) {
  if (empty($env_id)) {
    $env_id = $this->client
      ->getEndpoint()
      ->getKey();
  }
  if (!isset($this->derived_key[$env_id])) {

    // If we set an explicit environment, check if this needs to overridden
    // Use the default.
    $identifier = \Drupal::config('acquia_connector.settings')
      ->get('identifier');
    $key = \Drupal::config('acquia_connector.settings')
      ->get('key');

    // See if we need to overwrite these values
    // In any case, this is equal for all subscriptions. Also
    // even if the search sub is different, the main subscription should be
    // active.
    $derived_key_salt = $this
      ->getDerivedKeySalt();

    // We use a salt from acquia.com in key derivation since this is a shared
    // value that we could change on the AN side if needed to force any
    // or all clients to use a new derived key.  We also use a string
    // ('solr') specific to the service, since we want each service using a
    // derived key to have a separate one.
    if (empty($derived_key_salt) || empty($key) || empty($identifier)) {

      // Expired or invalid subscription - don't continue.
      $this->derived_key[$env_id] = '';
    }
    elseif (!isset($derived_key[$env_id])) {
      $this->derived_key[$env_id] = CryptConnector::createDerivedKey($derived_key_salt, $env_id, $key);
    }
  }
  return $this->derived_key[$env_id];
}