function _openid_is_xri in Drupal 7

Same name and namespace in other branches

1. 6 modules/openid/openid.inc \_openid_is_xri()

Determine if the given identifier is an XRI ID.

3 calls to _openid_is_xri()

OpenIDTestCase::testOpenidXRITest in modules/openid/openid.test

Test _openid_is_xri().

_openid_xri_discovery in modules/openid/openid.module

OpenID discovery method: perform an XRI discovery.

_openid_xri_normalize in modules/openid/openid.inc

OpenID normalization method: normalize XRI identifiers.

File

modules/openid/openid.inc, line 263

OpenID utility functions.

Code

function _openid_is_xri($identifier) {

  // Strip the xri:// scheme from the identifier if present.
  if (stripos($identifier, 'xri://') === 0) {
    $identifier = substr($identifier, 6);
  }

  // Test whether the identifier starts with an XRI global context symbol or (.
  $firstchar = substr($identifier, 0, 1);
  if (strpos("=@+\$!(", $firstchar) !== FALSE) {
    return TRUE;
  }
  return FALSE;
}