first commit

wp-content/plugins/mailchimp-for-wp/includes/forms/class-form-previewer.php

@@ -0,0 +1,37 @@
+<?php
+
+class MC4WP_Form_Previewer {
+
+	public function add_hooks() {
+		add_action( 'parse_request', array( $this, 'listen' ) );
+	}
+
+	public function listen() {
+		if ( empty( $_GET['mc4wp_preview_form'] ) ) {
+			return;
+		}
+
+		try {
+			$form = mc4wp_get_form( $_GET['mc4wp_preview_form'] );
+		} catch ( Exception $e ) {
+			return;
+		}
+
+		show_admin_bar( false );
+		add_filter( 'pre_handle_404', '__return_true' );
+		remove_all_actions( 'template_redirect' );
+		add_action( 'template_redirect', array( $this, 'load_preview' ) );
+	}
+
+	public function load_preview() {
+		// clear output, some plugin or hooked code might have thrown errors by now.
+		if ( ob_get_level() > 0 ) {
+			ob_end_clean();
+		}
+
+		$form_id = (int) $_GET['mc4wp_preview_form'];
+		status_header( 200 );
+		require __DIR__ . '/views/preview.php';
+		exit;
+	}
+}