private function TokenProcessor::ldapTokenizationProcessDnParts in Lightweight Directory Access Protocol (LDAP) 8.3

Tokenization of DN parts.

Parameters

array $ldap_entry: LDAP entry.

string $pre: Preamble.

string $post: Postamble.

Return value

array Tokens.

1 call to TokenProcessor::ldapTokenizationProcessDnParts()

TokenProcessor::compileLdapTokenEntries in ldap_servers/src/Processor/TokenProcessor.php

Compile LDAP token entries.

File

ldap_servers/src/Processor/TokenProcessor.php, line 388

Class

TokenProcessor

Helper to manage LDAP tokens and process their content.

Namespace

Drupal\ldap_servers\Processor

Code

private function ldapTokenizationProcessDnParts(array $ldap_entry, $pre, $post) {
  $tokens = [];

  // 1. tokenize dn
  // escapes attribute values, need to be unescaped later.
  $dn_parts = Server::ldapExplodeDn($ldap_entry['dn'], 0);
  unset($dn_parts['count']);
  $parts_count = [];
  $parts_last_value = [];
  foreach ($dn_parts as $pair) {
    list($attribute_name, $attribute_value) = explode('=', $pair);
    $attribute_value = ConversionHelper::unescapeDnValue($attribute_value);
    if (!Unicode::validateUtf8($attribute_value)) {
      $this->detailLog
        ->log('Skipped tokenization of attribute %attr_name because the value is not valid UTF-8 string.', [
        '%attr_name' => $attribute_name,
      ]);
      continue;
    }
    if (!isset($parts_count[$attribute_name])) {

      // First and general entry.
      $tokens[$pre . mb_strtolower($attribute_name) . $post] = $attribute_value;
      $parts_count[$attribute_name] = 0;
    }
    $tokens[$pre . mb_strtolower($attribute_name) . self::DELIMITER . (int) $parts_count[$attribute_name] . $post] = $attribute_value;
    $parts_last_value[$attribute_name] = $attribute_value;
    $parts_count[$attribute_name]++;
  }

  // Add DN parts in reverse order to reflect the hierarchy for CN, OU, DC.
  foreach ($parts_count as $attribute_name => $count) {
    $part = mb_strtolower($attribute_name);
    for ($i = 0; $i < $count; $i++) {
      $reversePosition = $count - $i - 1;
      $tokens[$pre . $part . self::DELIMITER . 'reverse' . self::DELIMITER . $reversePosition . $post] = $tokens[$pre . $part . self::DELIMITER . $i . $post];
    }
  }
  foreach ($parts_count as $attribute_name => $count) {
    $tokens[$pre . mb_strtolower($attribute_name) . self::DELIMITER . 'last' . $post] = $parts_last_value[$attribute_name];
  }
  return $tokens;
}