399 lines
13 KiB
PHP
399 lines
13 KiB
PHP
<?php
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if (!defined('ABSPATH')) {
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exit;
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}
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class WPDD_License_Manager {
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/**
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* Initialize the license manager
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*/
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public static function init() {
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add_action('wpdd_order_completed', array(__CLASS__, 'generate_license_for_order'), 10, 2);
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}
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/**
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* Generate a unique license key
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* Format: XXXX-XXXX-XXXX-XXXX
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*/
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public static function generate_license_key() {
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$segments = array();
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for ($i = 0; $i < 4; $i++) {
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$segments[] = strtoupper(substr(md5(uniqid(mt_rand(), true)), 0, 4));
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}
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return implode('-', $segments);
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}
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/**
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* Generate license for completed order
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*/
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public static function generate_license_for_order($order_id, $order) {
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global $wpdb;
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// Check if product is software license type
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$product_type = get_post_meta($order->product_id, '_wpdd_product_type', true);
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if ($product_type !== 'software_license') {
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return;
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}
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// Check if license already exists for this order
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$existing = $wpdb->get_var($wpdb->prepare(
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"SELECT id FROM {$wpdb->prefix}wpdd_licenses WHERE order_id = %d",
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$order_id
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));
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if ($existing) {
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return;
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}
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// Generate unique license key
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$license_key = self::generate_license_key();
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// Ensure it's unique
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while (self::license_key_exists($license_key)) {
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$license_key = self::generate_license_key();
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}
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// Get license settings from product
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$max_activations = get_post_meta($order->product_id, '_wpdd_max_activations', true) ?: 1;
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$license_duration = get_post_meta($order->product_id, '_wpdd_license_duration', true); // in days
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$expires_at = null;
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if ($license_duration && $license_duration > 0) {
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$expires_at = date('Y-m-d H:i:s', strtotime("+{$license_duration} days"));
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}
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// Insert license
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$wpdb->insert(
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$wpdb->prefix . 'wpdd_licenses',
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array(
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'license_key' => $license_key,
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'product_id' => $order->product_id,
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'order_id' => $order_id,
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'customer_id' => $order->customer_id,
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'customer_email' => $order->customer_email,
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'status' => 'active',
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'max_activations' => $max_activations,
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'expires_at' => $expires_at,
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'created_at' => current_time('mysql')
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),
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array('%s', '%d', '%d', '%d', '%s', '%s', '%d', '%s', '%s')
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);
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// Send license key to customer
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self::send_license_email($order, $license_key);
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return $license_key;
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}
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/**
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* Check if license key exists
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*/
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public static function license_key_exists($license_key) {
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global $wpdb;
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return $wpdb->get_var($wpdb->prepare(
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"SELECT COUNT(*) FROM {$wpdb->prefix}wpdd_licenses WHERE license_key = %s",
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$license_key
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)) > 0;
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}
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/**
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* Validate license key
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*/
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public static function validate_license($license_key, $product_slug = null, $site_url = null) {
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global $wpdb;
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// Get license details
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$license = $wpdb->get_row($wpdb->prepare(
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"SELECT l.*, p.post_name as product_slug
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FROM {$wpdb->prefix}wpdd_licenses l
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LEFT JOIN {$wpdb->prefix}posts p ON l.product_id = p.ID
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WHERE l.license_key = %s",
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$license_key
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));
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if (!$license) {
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return array(
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'valid' => false,
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'error' => 'invalid_license',
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'message' => __('Invalid license key.', 'wp-digital-download')
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);
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}
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// Check product match
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if ($product_slug && $license->product_slug !== $product_slug) {
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return array(
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'valid' => false,
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'error' => 'product_mismatch',
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'message' => __('License key is not valid for this product.', 'wp-digital-download')
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);
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}
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// Check status
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if ($license->status !== 'active') {
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return array(
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'valid' => false,
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'error' => 'license_' . $license->status,
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'message' => sprintf(__('License is %s.', 'wp-digital-download'), $license->status)
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);
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}
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// Check expiration
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if ($license->expires_at && strtotime($license->expires_at) < time()) {
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// Update status to expired
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$wpdb->update(
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$wpdb->prefix . 'wpdd_licenses',
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array('status' => 'expired'),
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array('id' => $license->id),
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array('%s'),
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array('%d')
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);
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return array(
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'valid' => false,
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'error' => 'license_expired',
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'message' => __('License has expired.', 'wp-digital-download'),
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'expired_at' => $license->expires_at
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);
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}
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// Check activation limit if site_url provided
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if ($site_url) {
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$activation_count = $wpdb->get_var($wpdb->prepare(
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"SELECT COUNT(*) FROM {$wpdb->prefix}wpdd_license_activations
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WHERE license_id = %d AND status = 'active'",
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$license->id
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));
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$is_activated = $wpdb->get_var($wpdb->prepare(
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"SELECT COUNT(*) FROM {$wpdb->prefix}wpdd_license_activations
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WHERE license_id = %d AND site_url = %s AND status = 'active'",
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$license->id,
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$site_url
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));
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if (!$is_activated && $activation_count >= $license->max_activations) {
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return array(
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'valid' => false,
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'error' => 'activation_limit',
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'message' => sprintf(__('License activation limit reached (%d/%d).', 'wp-digital-download'),
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$activation_count, $license->max_activations),
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'activations' => $activation_count,
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'max_activations' => $license->max_activations
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);
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}
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}
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// Update last checked
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$wpdb->update(
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$wpdb->prefix . 'wpdd_licenses',
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array('last_checked' => current_time('mysql')),
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array('id' => $license->id),
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array('%s'),
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array('%d')
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);
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return array(
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'valid' => true,
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'license' => $license,
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'message' => __('License is valid.', 'wp-digital-download')
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);
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}
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/**
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* Activate license for a site
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*/
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public static function activate_license($license_key, $site_url, $site_name = null, $wp_version = null, $php_version = null) {
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global $wpdb;
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// Validate license first
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$validation = self::validate_license($license_key, null, $site_url);
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if (!$validation['valid']) {
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return $validation;
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}
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$license = $validation['license'];
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// Check if already activated for this site
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$existing = $wpdb->get_row($wpdb->prepare(
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"SELECT * FROM {$wpdb->prefix}wpdd_license_activations
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WHERE license_id = %d AND site_url = %s",
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$license->id,
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$site_url
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));
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if ($existing && $existing->status === 'active') {
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return array(
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'success' => true,
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'already_active' => true,
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'message' => __('License already activated for this site.', 'wp-digital-download')
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);
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}
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if ($existing) {
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// Reactivate
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$wpdb->update(
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$wpdb->prefix . 'wpdd_license_activations',
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array(
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'status' => 'active',
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'activated_at' => current_time('mysql'),
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'last_checked' => current_time('mysql'),
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'wp_version' => $wp_version,
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'php_version' => $php_version,
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'site_name' => $site_name
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),
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array('id' => $existing->id),
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array('%s', '%s', '%s', '%s', '%s', '%s'),
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array('%d')
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);
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} else {
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// New activation
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$wpdb->insert(
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$wpdb->prefix . 'wpdd_license_activations',
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array(
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'license_id' => $license->id,
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'license_key' => $license_key,
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'site_url' => $site_url,
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'site_name' => $site_name,
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'activated_at' => current_time('mysql'),
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'last_checked' => current_time('mysql'),
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'wp_version' => $wp_version,
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'php_version' => $php_version,
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'status' => 'active'
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),
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array('%d', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s')
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);
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}
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// Update activation count
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$count = $wpdb->get_var($wpdb->prepare(
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"SELECT COUNT(*) FROM {$wpdb->prefix}wpdd_license_activations
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WHERE license_id = %d AND status = 'active'",
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$license->id
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));
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$wpdb->update(
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$wpdb->prefix . 'wpdd_licenses',
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array('activations_count' => $count),
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array('id' => $license->id),
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array('%d'),
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array('%d')
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);
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return array(
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'success' => true,
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'message' => __('License activated successfully.', 'wp-digital-download'),
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'activations' => $count,
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'max_activations' => $license->max_activations
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);
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}
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/**
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* Deactivate license for a site
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*/
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public static function deactivate_license($license_key, $site_url) {
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global $wpdb;
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// Get license
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$license = $wpdb->get_row($wpdb->prepare(
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"SELECT * FROM {$wpdb->prefix}wpdd_licenses WHERE license_key = %s",
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$license_key
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));
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if (!$license) {
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return array(
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'success' => false,
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'error' => 'invalid_license',
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'message' => __('Invalid license key.', 'wp-digital-download')
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);
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}
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// Deactivate
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$updated = $wpdb->update(
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$wpdb->prefix . 'wpdd_license_activations',
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array('status' => 'deactivated'),
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array(
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'license_id' => $license->id,
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'site_url' => $site_url
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),
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array('%s'),
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array('%d', '%s')
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);
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if (!$updated) {
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return array(
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'success' => false,
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'error' => 'not_activated',
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'message' => __('License not activated for this site.', 'wp-digital-download')
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);
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}
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// Update activation count
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$count = $wpdb->get_var($wpdb->prepare(
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"SELECT COUNT(*) FROM {$wpdb->prefix}wpdd_license_activations
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WHERE license_id = %d AND status = 'active'",
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$license->id
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));
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$wpdb->update(
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$wpdb->prefix . 'wpdd_licenses',
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array('activations_count' => $count),
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array('id' => $license->id),
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array('%d'),
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array('%d')
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);
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return array(
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'success' => true,
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'message' => __('License deactivated successfully.', 'wp-digital-download')
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);
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}
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/**
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* Send license email to customer
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*/
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private static function send_license_email($order, $license_key) {
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$product = get_post($order->product_id);
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$subject = sprintf(__('Your License Key for %s', 'wp-digital-download'), $product->post_title);
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$message = sprintf(
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__("Hi %s,\n\nThank you for your purchase!\n\nHere is your license key for %s:\n\n%s\n\nPlease keep this key safe. You will need it to activate and receive updates for your software.\n\nBest regards,\n%s", 'wp-digital-download'),
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$order->customer_name ?: $order->customer_email,
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$product->post_title,
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$license_key,
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get_bloginfo('name')
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);
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wp_mail($order->customer_email, $subject, $message);
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}
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/**
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* Get license details for admin
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*/
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public static function get_license_details($license_key) {
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global $wpdb;
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$license = $wpdb->get_row($wpdb->prepare(
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"SELECT l.*, p.post_title as product_name
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FROM {$wpdb->prefix}wpdd_licenses l
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LEFT JOIN {$wpdb->prefix}posts p ON l.product_id = p.ID
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WHERE l.license_key = %s",
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$license_key
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));
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if (!$license) {
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return null;
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}
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// Get activations
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$license->activations = $wpdb->get_results($wpdb->prepare(
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"SELECT * FROM {$wpdb->prefix}wpdd_license_activations
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WHERE license_id = %d
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ORDER BY activated_at DESC",
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$license->id
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));
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return $license;
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}
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} |