优化了一些问题

src/Content/Download.php

@@ -68,6 +68,19 @@ class Download {
         ));
     }
 
+    /**
+     * Master switch for the site-routed download system (aksrt_download_config
+     * "enabled", default true). When off, download buttons render the raw
+     * source URLs directly and every token route/endpoint below stays dormant.
+     */
+    public function is_enabled(): bool {
+        $cfg = get_option('aksrt_download_config', []);
+        if (!is_array($cfg)) {
+            return true;
+        }
+        return !isset($cfg['enabled']) || !empty($cfg['enabled']);
+    }
+
     /**
      * Effective download settings (aksrt_download_config), clamped so a
      * corrupted option can never break routing or accounting.
@@ -97,6 +110,10 @@ class Download {
     }
 
     public function register_rewrite(): void {
+        if (!$this->is_enabled()) {
+            return;
+        }
+
         add_rewrite_rule(
             '^' . preg_quote($this->config()['endpoint'], '/') . '/([A-Za-z0-9]{1,64})/?$',
             'index.php?' . self::QUERY_VAR . '=$matches[1]',
@@ -105,11 +122,12 @@ class Download {
     }
 
     /**
-     * Re-flush rewrite rules whenever the configured alias changes, using
-     * the same version-marker approach as Auth\Router.
+     * Re-flush rewrite rules whenever the configured alias or the master
+     * switch changes, using the same version-marker approach as Auth\Router.
      */
     public function maybe_flush_rewrite(): void {
-        $version = AKSRT_VERSION . ':download-endpoint:' . $this->config()['endpoint'];
+        $endpoint = $this->is_enabled() ? $this->config()['endpoint'] : 'off';
+        $version = AKSRT_VERSION . ':download-endpoint:' . $endpoint;
         if ((string) get_option('aksrt_dl_rewrite_version') !== $version) {
             flush_rewrite_rules(false);
             update_option('aksrt_dl_rewrite_version', $version);
@@ -122,17 +140,15 @@ class Download {
     }
 
     public function register_routes(): void {
+        if (!$this->is_enabled()) {
+            return;
+        }
+
         register_rest_route('aksrt/v1', '/download/request', [
             'methods'             => 'POST',
             'callback'            => [$this, 'rest_request'],
             'permission_callback' => [$this, 'check_rest_nonce'],
         ]);
-
-        register_rest_route('aksrt/v1', '/download/policy/(?P<id>\d+)', [
-            'methods'             => 'GET',
-            'callback'            => [$this, 'rest_policy'],
-            'permission_callback' => '__return_true',
-        ]);
     }
 
     public function check_rest_nonce(\WP_REST_Request $request) {
@@ -155,63 +171,6 @@ class Download {
         return true;
     }
 
-    public function rest_policy(\WP_REST_Request $request) {
-        $post_id = (int) $request['id'];
-        $post = get_post($post_id);
-        if (!$post || !function_exists('aksrt_is_downloadable_content') || !aksrt_is_downloadable_content($post)) {
-            return new \WP_Error('aksrt_invalid', __('内容不存在或未启用下载能力', 'aksrt'), ['status' => 404]);
-        }
-
-        $meta = function_exists('aksrt_get_download_box_meta') ? aksrt_get_download_box_meta($post) : [];
-        $cost = aksrt_resource_download_cost($post);
-        $uid = get_current_user_id();
-        $priced = function_exists('aksrt_get_user_pay_price') ? aksrt_get_user_pay_price($post, $uid) : null;
-        $pay_modo = is_array($priced)
-            ? ((($priced['modo'] ?? '0') === 'points') ? 'points' : '0')
-            : ((($meta['pay_modo'] ?? '0') === 'points') ? 'points' : '0');
-        $display_price = is_array($priced)
-            ? ($priced['amount'] ?? ($pay_modo === 'points' ? 0 : '0.00'))
-            : (($pay_modo === 'points') ? (int) ($meta['points_price'] ?? 0) : (string) ($meta['price'] ?? '0.00'));
-
-        $access = class_exists('AKSRT\\Content\\Visibility')
-            ? Visibility::get_post_access_state($post, $uid)
-            : [];
-
-        $need_captcha = function_exists('aksrt_is_captcha_enabled_for') && aksrt_is_captcha_enabled_for('download');
-
-        return new \WP_REST_Response([
-            'post_id'          => $post_id,
-            'price'            => $display_price,
-            'base_price'       => is_array($priced) ? ($priced['base'] ?? $display_price) : $display_price,
-            'pay_modo'         => $pay_modo,
-            'pay_limit'        => (int) ($meta['pay_limit'] ?? 0),
-            'cost'             => $cost,
-            'require_login'    => !empty($access['need_login']),
-            'require_captcha'  => $need_captcha,
-            'logged_in'        => $uid > 0,
-            'balance'          => $uid > 0 ? \AKSRT\Ledger\LedgerService::get_instance()->balance($uid, \AKSRT\Ledger\AssetType::POINTS) : 0,
-            'has_paid_access'  => !empty($access['has_paid_access']),
-            'need_purchase'    => !empty($access['need_purchase']),
-            'need_vip'         => !empty($access['need_vip']),
-            'need_login'       => !empty($access['need_login']) && $uid <= 0,
-            'can_download'     => !empty($access['can_download']),
-            'login_url'        => wp_login_url(get_permalink($post)),
-            'vip_level'        => (int) ($access['user_vip_level'] ?? 0),
-            'free_limit'       => $uid > 0 && function_exists('aksrt_get_user_free_download_limit') ? aksrt_get_user_free_download_limit($uid) : 0,
-            'free_used'        => $uid > 0 && function_exists('aksrt_get_user_free_downloaded_number') ? aksrt_get_user_free_downloaded_number($uid) : 0,
-            'free_surplus'     => $uid > 0 && function_exists('aksrt_get_free_download_surplus') ? aksrt_get_free_download_surplus($uid) : null,
-            'sources'          => array_map(function ($row, $idx) {
-                $extract_code = trim((string) ($row['extract_code'] ?? ''));
-                return [
-                    'index'       => $idx,
-                    'label'       => $row['label'] ?? '',
-                    'type'        => $row['type'] ?? 'direct',
-                    'has_extract' => $extract_code !== '',
-                ];
-            }, $meta['downloads'] ?? [], array_keys($meta['downloads'] ?? [])),
-        ], 200);
-    }
-
     public function rest_request(\WP_REST_Request $request) {
         $params = $request->get_json_params();
         if (!is_array($params)) $params = $request->get_params();
@@ -303,6 +262,11 @@ class Download {
             $this->fail_410();
         }
 
+        // Master switch off: the token system is retired, links are dead ends.
+        if (!$this->is_enabled()) {
+            $this->fail_410();
+        }
+
         global $wpdb;
         $table = \AKSRT\Core\DBMigrator::table('dl_token');
         if (!$table) $this->fail_410();