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<?php
require_once "common.php";
session_start();
// Render a default page if we got a submission without an openid
// value.
if (empty($_GET['openid_url'])) {
$error = "Expected an OpenID URL.";
include 'index.php';
exit(0);
}
$scheme = 'http';
if (isset($_SERVER['HTTPS']) and $_SERVER['HTTPS'] == 'on') {
$scheme .= 's';
}
$openid = $_GET['openid_url'];
$process_url = sprintf("$scheme://%s:%s%s/finish_auth.php",
$_SERVER['SERVER_NAME'], $_SERVER['SERVER_PORT'],
dirname($_SERVER['PHP_SELF']));
$trust_root = sprintf("$scheme://%s:%s%s",
$_SERVER['SERVER_NAME'], $_SERVER['SERVER_PORT'],
dirname($_SERVER['PHP_SELF']));
// Begin the OpenID authentication process.
$auth_request = $consumer->begin($openid);
// Handle failure status return values.
if (!$auth_request) {
$error = "Authentication error.";
include 'index.php';
exit(0);
}
$auth_request->addExtensionArg('sreg', 'optional', 'email');
// Redirect the user to the OpenID server for authentication. Store
// the token for this authentication so we can verify the response.
if ($auth_request->shouldSendRedirect()) {
$redirect_url = $auth_request->redirectURL($trust_root,
$process_url);
header("Location: ".$redirect_url);
} else {
$form_id = 'openid_message';
$form_html = $auth_request->formMarkup($trust_root, $process_url, false,
$form_tag_attrs=array('id' => $form_id));
if (is_a($form_html, 'Auth_OpenID_FailureResponse')) {
print "Error: " . $form_html->message;
}
?>
<html><head><title>OpenID transaction in progress</title></head>
<body onload='document.getElementById("<?=$form_id?>").submit()'>
<?=$form_html?>
</body></html>
<?
}
?>
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