Fix: Return 404 for campaign pages when disabled on the campaign (#7716)

Co-authored-by: Jon Waldstein <[email protected]>

src/Campaigns/Actions/RedirectDisabledCampaignPage.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Give\Campaigns\Actions;
+
+use Give\Campaigns\Models\CampaignPage;
+
+/**
+ * @unreleased
+ */
+class RedirectDisabledCampaignPage
+{
+    /**
+     * @unreleased
+     */
+    public function __invoke()
+    {
+        if('give_campaign_page' !== get_post_type()) {
+            return;
+        }
+
+        $campaignPage = CampaignPage::find(get_the_ID());
+
+        if($campaignPage && !$campaignPage->campaign()->enableCampaignPage) {
+            global $wp_query;
+            $wp_query->set_404();
+            status_header(404);
+        }
+    }
+}

src/Campaigns/ServiceProvider.php

@@ -137,6 +137,7 @@ private function replaceGiveFormsCptLabels()
     private function setupCampaignPages()
     {
         Hooks::addAction('init', Actions\RegisterCampaignPagePostType::class);
+        Hooks::addAction('template_redirect', Actions\RedirectDisabledCampaignPage::class);
         Hooks::addAction('enqueue_block_editor_assets', Actions\EnqueueCampaignPageEditorAssets::class);
         Hooks::addAction('admin_action_edit_campaign_page', Actions\EditCampaignPageRedirect::class);
     }