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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);
}
$openid = $_GET['openid_url'];
$process_url = sprintf("http://%s%s/finish_auth.php",
$_SERVER['SERVER_NAME'],
dirname($_SERVER['PHP_SELF']));
$trust_root = sprintf("http://%s%s",
$_SERVER['SERVER_NAME'],
dirname($_SERVER['PHP_SELF']));
// Begin the OpenID authentication process.
list($status, $info) = @$consumer->beginAuth($openid);
// Handle failure status return values.
if ($status != Auth_OpenID_SUCCESS) {
$error = "Authentication error.";
include 'index.php';
exit(0);
}
// Redirect the user to the OpenID server for authentication. Store
// the token for this authentication so we can verify the response.
$_SESSION['openid_token'] = $info->token;
$redirect_url = @$consumer->constructRedirect($info, $process_url,
$trust_root);
header("Location: ".$redirect_url);
?>
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