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wp-deadbolt.php
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wp-deadbolt.php
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<?php
/*
Plugin Name: WP-Deadbolt
Plugin URI: http://www.village-idiot.org/archives/2007/04/24/wp-deadbolt-3/
Description: Give yourself control of e-mail addresses that can be used when registering on your WordPress blog.
Version: 3.0
Author: whoo
Author URI: http://www.village-idiot.org
Changes:
01/09/07: Version 2.1
Initial release for WordPress 2.1.
04/23/07: Version 3.0
Changeover to MySQL integration.
All settings configurable via administration area.
*/
function deadbolt() {
global $errors;
$checkemail=$_POST['user_email'];
global $wpdb;
$table_name = $wpdb->prefix . "deadbolt";
$sql = 'select ID, deadbolt from '.$table_name;
$badmails = array();
$results = $wpdb->get_results($sql );
foreach( $results as $result )
$badmails[] = $result->deadbolt;
$pass = true;
for (
$i = 0, $n = sizeof($badmails), $badmail;
$i < $n && $pass = (strpos($checkemail, $badmail = $badmails[$i]) === false);
$i++
)
{ }
if ((get_option('deadbolt_option') == "white" && $pass) || (get_option('deadbolt_option') != "white" && !$pass ))
{
$errors['deadbolt'] = get_option('deadbolt_message');
}
}
// Install the necessary table.
function deadbolt_install() {
global $wpdb;
$deadbolt_table_name = $wpdb->prefix . "deadbolt";
if($wpdb->get_var("show tables like '$deadbolt_table_name'") != $deadbolt_table_name) {
$sql = "
CREATE TABLE " . $deadbolt_table_name . " (
id int(11) unsigned NOT NULL AUTO_INCREMENT,
deadbolt varchar(64) NOT NULL DEFAULT '',
PRIMARY KEY (id)
);";
require_once(ABSPATH . 'wp-admin/upgrade-functions.php');
dbDelta($sql);
}
// Default settings, user can change these via the admin area
update_option('deadbolt_option', '');
update_option('deadbolt_message', 'That domain is not allowed to register.');
}
// Load the options page
function deadbolt_optionsmenu() {
if (function_exists('add_submenu_page')) {
add_submenu_page('options-general.php', 'WP-Deadbolt', 'WP-Deadbolt', '8', 'deadbolt_options.php');
}
}
// Hooks
add_action('admin_menu', 'deadbolt_optionsmenu');
add_action('activate_wp-deadbolt.php', 'deadbolt_install');
add_action('register_post', 'deadbolt');
?>