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Fix LDAP TLS client certificate options must be set before ldap_connect() for Google Secure LDAP #945

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Fix LDAP TLS client certificate options must be set before ldap_connect() for Google Secure LDAP #945

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12 changes: 12 additions & 0 deletions datamodels/2.x/authent-ldap/datamodel.authent-ldap.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,18 @@
$this->LogInfo($bDebug, "ldap_set_option('LDAP_OPT_DEBUG_LEVEL', '{$aOptions[LDAP_OPT_DEBUG_LEVEL]}') returned ".($bRet ? 'true' : 'false'));
}

// Set TLS options globally BEFORE ldap_connect() - required for ldaps:// with client certificates
// (e.g. Google Workspace Secure LDAP). OpenLDAP requires TLS context options (LDAP_OPT_X_TLS_CACERTFILE,
// LDAP_OPT_X_TLS_CERTFILE, LDAP_OPT_X_TLS_KEYFILE) to be set on the global context (null) before
// ldap_connect() is called, otherwise the TLS handshake fails on the first attempt per PHP-FPM worker.
foreach ($aOptions as $name => $value)
{
ldap_set_option(null, $name, $value);
$this->LogInfo($bDebug, "ldap_set_option(null, '$name', '$value')");
}
// Reinitialize TLS context so the new options take effect before connecting
ldap_set_option(null, LDAP_OPT_X_TLS_NEWCTX, 0);

@Hipska Hipska Jun 24, 2026

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Can you give a link to PHP documentation about LDAP_OPT_X_TLS_NEWCTX? It doesn't seem to exist.


$hDS = @ldap_connect($sURI);
if ($hDS === false)
{
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