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<?php
require_once("db.php");
/* provide OpenID support
*
* taken from http://www.plaxo.com/api/openid_recipe
*/
function OpenIDVerify()
{
global $OPENIDPATH;
/* need the openip library */
require_once $OPENIDPATH."examples/consumer/common.php";
$consumer = getConsumer();
$return_to = getReturnTo();
$response = $consumer->complete($return_to);
// Check the response status.
if ($response->status == Auth_OpenID_CANCEL) {
// This means the authentication was cancelled.
echo 'Verification cancelled.';
return False;
} else if ($response->status == Auth_OpenID_FAILURE) {
// Authentication failed; display the error message.
echo "OpenID authentication failed: " . $response->message;
return False;
} else if ($response->status == Auth_OpenID_SUCCESS) {
// This means the authentication succeeded; extract the
// identity URL and Simple Registration data (if it was
// returned).
$openid = $response->getDisplayIdentifier();
$sreg_resp = Auth_OpenID_SRegResponse::fromSuccessResponse($response);
$sreg = $sreg_resp->contents();
}
if(isset($sreg))
return $sreg;
else
return "ok";
}
function OpenIDAskForVerification($openid_url)
{
global $OPENIDPATH;
/* ask for openid verification */
require_once $OPENIDPATH."examples/consumer/common.php";
$openid =$_REQUEST['openid_url'];
$consumer = getConsumer();
/* check for authentication */
// Begin the OpenID authentication process.
$auth_request = $consumer->begin($openid);
// No auth request means we can't begin OpenID.
if (!$auth_request) {
echo "Authentication error; not a valid OpenID.";
}
$sreg_request = Auth_OpenID_SRegRequest::build(array(),array('fullname','email', 'nickname'));
if ($sreg_request) {
$auth_request->addExtension($sreg_request);
}
// Redirect the user to the OpenID server for authentication.
// Store the token for this authentication so we can verify the
// response.
// For OpenID 1, send a redirect. For OpenID 2, use a Javascript
// form to send a POST request to the server.
if ($auth_request->shouldSendRedirect()) {
$redirect_url = $auth_request->redirectURL(getTrustRoot(),
getReturnTo());
// If the redirect URL can't be built, display an error
// message.
if (Auth_OpenID::isFailure($redirect_url)) {
displayError("Could not redirect to server: " . $redirect_url->message);
} else {
// Send redirect.
header("Location: ".$redirect_url);
}
} else {
// Generate form markup and render it.
$form_id = 'openid_message';
$form_html = $auth_request->htmlMarkup(getTrustRoot(), getReturnTo(),
false, array('id' => $form_id));
// Display an error if the form markup couldn't be generated;
// otherwise, render the HTML.
if (Auth_OpenID::isFailure($form_html)) {
displayError("Could not redirect to server: " . $form_html->message);
} else {
print $form_html;
}
}
}
function OpenIDUrlEncode($openid_url)
{
/* this converts each url to a standard form
* (domain lowercase and http at the beginning)
*/
$return = "";
$parts = explode("/",$openid_url);
$return .= "http://";
/* check for http:// */
if( strtolower($parts[0]) == "http:" )
array_shift($parts);
if( $parts[0] == "")
array_shift($parts);
/* next part is the server*/
$return .= strtolower( $parts[0] );
array_shift($parts);
foreach ($parts as $t)
$return .= "/$t";
return $return;
}
function DB_GetUserId($openid_url)
{
$result = DB_query_array("SELECT user_id FROM user_openids WHERE openid_url = ".DB_quote_smart(OpenIDUrlEncode($openid_url)));
if($result)
return $result[0];
else
return False;
}
function DB_GetOpenIDsByUser($user_id)
{
return DB_query_array_all("SELECT openid_url FROM user_openids WHERE user_id = '$user_id'");
}
function DB_AttachOpenID($openid_url, $user_id)
{
DB_query("INSERT INTO user_openids VALUES (".DB_quote_smart(OpenIDUrlEncode($openid_url)).", '$user_id')");
}
function DB_DetachOpenID($openid_url, $user_id)
{
DB_query("DELETE FROM user_openids WHERE openid_url = ".DB_quote_smart(OpenIDUrlEncode($openid_url))." AND user_id = '$user_id'");
}
function DB_DetachOpenIDsByUser($user_id)
{
DB_query("DELETE FROM user_openids WHERE user_id = '$user_id'");
}
?>
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