real34

<?php
/*
Plugin Name: MyOpenID
Plugin URI: http://nikolay.com/projects/wordpress/myopenid/
Description: MyOpenID plugin allows you to use your blog as your OpenID identity by delegating it to an external provide such as myOpenID, myVidoop, and claimID.
Version: 0.3
Author: Nikolay Kolev
Author URI: http://nikolay.com/
*/

define('MYOPENID_NONCE', 'myopenid_nonce');

define('MYOPENID_USERNAME_OPTION', 'myopenid_username');
define('MYOPENID_PROVIDER_OPTION', 'myopenid_provider');

function myopenid_reset_settings() {
    delete_option(MYOPENID_PROVIDER_OPTION);
    delete_option(MYOPENID_USERNAME_OPTION);
}

function myopenid_has_settings() {
    $provider = get_option(MYOPENID_PROVIDER_OPTION);
    $username = get_option(MYOPENID_USERNAME_OPTION);
    return !empty($provider) && !empty($username);
}

add_action('init', 'myopenid_init');

function myopenid_init() {
    add_action('admin_menu', 'myopenid_admin_menu');
    add_action('wp_head', 'myopenid_head');
}

function myopenid_admin_menu() {
    add_options_page(__('MyOpenID Settings'), __('MyOpenID'), 8, __FILE__, 'myopenid_settings');
}

function myopenid_settings() {
    if (isset($_POST['submit'])) {
        if (!current_user_can('manage_options')) {
            die(__('Unauthorized access!'));
        }
        check_admin_referer(MYOPENID_NONCE);
        if (isset($_POST['myopenid_provider'])) {
            $provider = $_POST['myopenid_provider'];
            if (empty($provider)) {
                delete_option(MYOPENID_PROVIDER_OPTION);
            } else {
                update_option(MYOPENID_PROVIDER_OPTION, $provider);
            }
        }
        if (isset($_POST['myopenid_username'])) {
            $username = $_POST['myopenid_username'];
            if (empty($username)) {
                delete_option(MYOPENID_USERNAME_OPTION);
            } else {
                update_option(MYOPENID_USERNAME_OPTION, $username);
            }
        }
?>
<div id="myopenid_warning" class="updated fade">
    <p><strong><?php _e('MyOpenID:'); ?></strong> <?php _e('Settings saved!'); ?></p>
</div>
<?php
    }

    $provider = get_option(MYOPENID_PROVIDER_OPTION);
    $username = get_option(MYOPENID_USERNAME_OPTION);

?>
<div class="wrap">
    <h2><?php _e('MyOpenID Settings'); ?></h2>
    <div id="poststuff" class="metabox-holder">
        <form name="form0" method="post" action=""><?php wp_nonce_field(MYOPENID_NONCE); ?>
            <div class="postbox open">
                <h3 class="hndle"><?php _e('OpenID Provider Info'); ?></h3>
                <div class="inside">
                    <table class="form-table">
                        <tr>
                            <th><label for="myopenid_provider"><?php _e('Provider:'); ?></label></th>
                            <td><select id="myopenid_provider" name="myopenid_provider">
                                <?php if (empty($provider)) { ?><option></option><?php } ?>
                                <option value="myopenid"<?php if ($provider == 'myopenid') echo ' selected="selected"'; ?>>myOpenID</option>
                                <option value="myvidoop"<?php if ($provider == 'myvidoop') echo ' selected="selected"'; ?>>myVidoop</option>
                                <option value="claimid"<?php if ($provider == 'claimid') echo ' selected="selected"'; ?>>claimID</option>
@@                              <option value="openidfrance"<?php if ($provider == 'openidfrance') echo ' selected="selected"'; ?>>openIDFrance</option>
                            </select></td>
                        </tr>
                        <tr>
                            <th><label for="myopenid_username"><?php _e('Username:'); ?></label></th>
                            <td><input type="text" id="myopenid_username" name="myopenid_username" value="<?php echo $username; ?>" /></td>
                        </tr>
                    </table>
                </div>
            </div>
            <p class="submit">
                <input type="submit" name="submit" value="<?php _e('Save Settings'); ?>" class="button-primary" />
            </p>
        </form>
    </div>
</div>
<?php
}

if (!myopenid_has_settings() && !isset($_POST['submit'])) {
    add_action('admin_notices', 'myopenid_admin_notices');
}

function myopenid_admin_notices() {
?>
<div id="myopenid_warning" class="updated fade">
    <p><strong><?php _e('MyOpenID:'); ?></strong> <?php _e('You need to configure the plugin in order to start utilizing it!'); ?></p>
</div>
<?php
}

function myopenid_head() {
    if (myopenid_has_settings()) {
        $provider = get_option(MYOPENID_PROVIDER_OPTION);
        $username = get_option(MYOPENID_USERNAME_OPTION);
?>
<!-- MyOpenID Plugin - Start -->
<?php
        switch ($provider) {
            case "myopenid":
?>
<link rel="openid.server" href="http://www.myopenid.com/server" />
<link rel="openid.delegate" href="http://<?php echo $username; ?>.myopenid.com/" />
<link rel="openid2.local_id" href="http://<?php echo $username; ?>.myopenid.com" />
<link rel="openid2.provider" href="http://www.myopenid.com/server" />
<meta http-equiv="X-XRDS-Location" content="http://www.myopenid.com/xrds?username=<?php echo $username; ?>.myopenid.com" />
<?php
                break;
            case "myvidoop":
?>
<link rel="openid.server" href="https://myvidoop.com/openid" />
<link rel="openid.delegate" href="http://<?php echo $username; ?>.myvidoop.com" />
<link rel="openid2.local_id" href="http://<?php echo $username; ?>.myvidoop.com" />
<link rel="openid2.provider" href="https://myvidoop.com/openid" />
<?php
                break;
            case "claimid":
?>
<link rel="openid.server" href="http://openid.claimid.com/server" />
<link rel="openid.delegate" href="http://openid.claimid.com/<?php echo $username; ?>" />
@@<?php
@@              break;
@@          case "openidfrance":
@@?>
@@<link rel="openid.server" href="http://www.openidfrance.fr/index.php" />
@@<link rel="openid.delegate" href="http://www.openidfrance.fr/<?php echo $username; ?>" />
<?php
                break;
        }
?>
<!-- MyOpenID Plugin - End -->
<?php
    }
}

?>