我计划开发一些专业的WordPress主题,并希望使用许可证密钥进行保护,这是否可能?
如果是这样,是否有人愿意链接到一些文章或帖子来帮助我入门?
我计划开发一些专业的WordPress主题,并希望使用许可证密钥进行保护,这是否可能?
如果是这样,是否有人愿意链接到一些文章或帖子来帮助我入门?
<?php
// functions.php
require("myadminpage.php");
# Functions follow here...
?>
myadminpage.php
<?php
// myadminpage.php
// register settings
function my_settings_init() {
register_setting('settings_license', 'settings_license');
}
// register admin page
function my_add_admin_page() {
add_menu_page(__( '' ), __( 'Manage License' ), 'administrator', 'myadminpage', 'my_admin_page');
}
add_action('admin_init', 'my_settings_init');
add_action('admin_menu', 'my_add_admin_page' );
if(isset($_GET["settings-updated"]) && $_GET["settings-updated"] == true) {
$options = get_option('settings_license');
$key = $options["key"];
$host = parse_url($GLOBALS['HTTP_SERVER_VARS']['REQUEST_URI'], PHP_URL_HOST);
$url = sprintf("http://you.com/check-license.php?key=%s&url=%s", $key, $host);
$options["valid"] = trim(file_get_contents($url)) == 1) ? "true" : "false";
update_option('settings_license', $options);
}
// callback function that renders your admin page
function my_admin_page() {
settings_fields('settings_license');
$options = get_option('settings_license');
?>
<form method="post" action="options.php">
<input id="settings_license[key]" type="text" name="settings_license[key]" value="<?php echo $options["key"]; ?>">
<input id="settings_license[valid]" type="hidden" name="settings_license[valid]" value="<?php echo $options["valid"]; ?>">
<input type="submit" value="Save">
</form>
<?php
}
?>
header.php
。<?php
// very first line
$license = get_option('settings_license');
// see: http://ckon.wordpress.com/2006/08/09/server-request_uri-doesnt-always-work-correctly-heres-how-to-fix/
$ruri = $GLOBALS['HTTP_SERVER_VARS']['REQUEST_URI'];
if(!preg_match("#wp-admin#", $ruri) && $license["valid"] != "true") {
wp_die( __('This website uses unlicensed software.<br>Administrators can update their license key <a href="'. get_bloginfo('url') .'/wp-admin/admin.php?page=myadminpage.php">here</a>.') );
}
# rest of header.php comes here..
我不这么认为。毕竟,用户必须拥有PHP代码才能使用主题,如果他们拥有它,他们可能会以这样的方式修改它,使其不再需要密钥。