# ultimate-post/5.0.41/classes/Importer.php

Post Grid Gutenberg Blocks – PostX, version 5.0.41. 938 lines.

- Page: https://pluginprobe.com/plugins/ultimate-post/5.0.41/code/classes/Importer.php
- Raw: https://pluginprobe.com/plugins/ultimate-post/5.0.41/raw/classes/Importer.php
- Modified: 2026-09-16T12:17:26+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/ultimate-post/5.0.41/code/classes/Importer.php#L10-L20`.

```php
<?php

/**
 * Importer System
 *
 * @package ULTP\Importer
 * @since 4.0.0
 */

namespace ULTP;

use ULTP\Includes\Durbin\DurbinClient;
use ULTP\Includes\Durbin\Xpo;

defined( 'ABSPATH' ) || exit;

/**
 * Importer class.
 *
 * Handles starter site import, plugin installation, and REST API endpoints for Ultimate Post.
 *
 * @package ULTP\Importer
 * @since 4.0.0
 */
class Importer {
	/**
	 * Setup class.
	 *
	 * @since 4.0.0
	 * @return NULL No return value.
	 */
	public function __construct() {
		add_action( 'wp_ajax_install_required_plugin', array( $this, 'install_required_plugin_callback' ) );
		add_action( 'rest_api_init', array( $this, 'get_starter_rest_endpoint_callback' ) );
	}

	/**
	 * Register REST API endpoints for starter import and related actions.
	 *
	 * @since 4.0.0
	 * @return void No return value.
	 */
	public function get_starter_rest_endpoint_callback() {
		register_rest_route(
			'ultp/v3',
			'/single_page_import/',
			array(
				array(
					'methods'             => 'POST',
					'callback'            => array( $this, 'single_page_import' ),
					'permission_callback' => function () {
						return current_user_can( 'edit_others_posts' );
					},
					'args'                => array(),
				),
			)
		);
		register_rest_route(
			'ultp/v3',
			'/deletepost_getnewsletters/',
			array(
				array(
					'methods'             => 'POST',
					'callback'            => array( $this, 'deletepost_getnewsletters' ),
					'permission_callback' => function () {
						return current_user_can( 'manage_options' );
					},
					'args'                => array(),
				),
			)
		);
		register_rest_route(
			'ultp/v3',
			'/starter_import_content/',
			array(
				array(
					'methods'             => 'POST',
					'callback'            => array( $this, 'starter_import_content_callback' ),
					'permission_callback' => function () {
						return current_user_can( 'manage_options' );
					},
					'args'                => array(),
				),
			)
		);
		register_rest_route(
			'ultp/v3',
			'/starter_dummy_post/',
			array(
				array(
					'methods'             => 'POST',
					'callback'            => array( $this, 'starter_dummy_post_callback' ),
					'permission_callback' => function () {
						return current_user_can( 'manage_options' );
					},
					'args'                => array(),
				),
			)
		);
	}

	/**
	 * Handle plugin installation via AJAX.
	 *
	 * @since 4.0.0
	 * @return void No return value.
	 */
	public function install_required_plugin_callback() {
		if ( ! current_user_can( 'install_plugins' ) ) {
			return wp_send_json_success( 'You are not allowed to install plugin' );
		}
		if ( ! wp_verify_nonce( sanitize_key( wp_unslash( $_REQUEST['wpnonce'] ) ), 'ultp-nonce' ) ) {
			return '';
		}
		if ( ! current_user_can( 'install_plugins' ) ) {
			return wp_send_json_success( 'You are not allowed to install plugin' );
		}

		if ( ! function_exists( 'get_plugins' ) ) {
			require_once ABSPATH . 'wp-admin/includes/plugin.php';
		}
		if ( ! function_exists( 'plugins_api' ) ) {
			require_once ABSPATH . 'wp-admin/includes/plugin-install.php';
		}
		if ( ! class_exists( 'WP_Upgrader' ) ) {
			require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
		}

		$msg = '';

		$all_plugins = get_plugins();
		$plugin      = ultimate_post()->ultp_rest_sanitize_params( json_decode( stripslashes( $_POST['plugin'] ) ) );

		if ( $plugin && isset( $all_plugins ) && is_array( $all_plugins ) && array_key_exists( $plugin->path, $all_plugins ) ) {
			$activated_plugins = apply_filters( 'active_plugins', get_option( 'active_plugins' ) );
			if ( is_array( $activated_plugins ) && in_array( $plugin->path, $activated_plugins ) ) {
				$msg = '_already_installed_activated';
			} else {
				$activate = activate_plugin( $plugin->path, '', false );
				$msg      = is_wp_error( $activate ) ? '_only_activated_error' : '_only_activated_success';
			}
		} else {
			$upgrader = new \Plugin_Upgrader( new \WP_Ajax_Upgrader_Skin() );
			if ( isset( $plugin->download ) ) {
				// Download.
				$link = $api->download;
			} else {
				// From Org.
				$api  = plugins_api(
					'plugin_information',
					array(
						'slug'   => explode( '/', $plugin->path )[0],
						'fields' => array(
							'short_description' => false,
							'sections'          => false,
							'requires'          => false,
							'rating'            => false,
							'ratings'           => false,
							'downloaded'        => false,
							'last_updated'      => false,
							'added'             => false,
							'tags'              => false,
							'compatibility'     => false,
							'homepage'          => false,
							'donate_link'       => false,
						),
					)
				);
				$link = $api->download_link;
			}
			$installed = $upgrader->install( $link );
			$activate  = activate_plugin( $plugin->path, '', false );

			$msg = is_wp_error( $activate ) ? $link : '_download_activation_success';
		}

		if ( $msg == '_download_activation_error' || $msg == '_only_activated_error' ) {
			wp_send_json_error( $msg );
		} else {
			wp_send_json_success( $msg );
		}
	}

	/**
	 * Starter dummy post callback.
	 *
	 * @since 4.0.0
	 *
	 * @param \WP_REST_Request $server The REST request object.
	 */
	function starter_dummy_post_callback( $server ) {
		$post         = $server->get_params();
		$api_endpoint = isset( $post['api_endpoint'] ) ? sanitize_text_field( $post['api_endpoint'] ) : '';
		$import_dummy = isset( $post['importDummy'] ) ? sanitize_text_field( $post['importDummy'] ) : '';

		// SSRF protection: Validate API endpoint
		if ( ! $this->is_allowed_api_endpoint( $api_endpoint ) ) {
			return rest_ensure_response(
				array(
					'success' => false,
					'message' => __( 'Invalid API endpoint. Only trusted domains are allowed.', 'ultimate-post' ),
				)
			);
		}

		$response = wp_safe_remote_post(
			$api_endpoint . '/wp-json/importer/site_all_posts',
			array(
				'method'  => 'POST',
				'timeout' => 120,
				'body'    => array(
					'type'     => 'site_posts',
					'license'  => Xpo::get_lc_key(),
					'ultp_ver' => ULTP_VER,
				),
			)
		);
		if ( is_wp_error( $response ) ) {
			return rest_ensure_response(
				array(
					'success'       => false,
					'response_data' => $response,
				)
			);
		}
		$response_data = json_decode( $response['body'] );
		if ( ! $response_data->success ) {
			return rest_ensure_response(
				array(
					'success' => false,
					'returns' => $response_data,
				)
			);
		}

		// Dummy Post and Taxonomy creation.
		$importable_posts = $response_data->posts;
		$created_posts    = $import_dummy != 'no' ? $this->starter_pack_dummy_post_creation( $importable_posts ) : array();
		return rest_ensure_response(
			array(
				'success'       => true,
				'created_posts' => $created_posts,
			)
		);
	}


	function starter_import_content_callback( $server ) {
		$post             = $server->get_params();
		$api_endpoint     = isset( $post['api_endpoint'] ) ? sanitize_text_field( $post['api_endpoint'] ) : '';
		$installed_plugin = isset( $post['installPlugin'] ) ? sanitize_text_field( $post['installPlugin'] ) : '';

		if ( ! $this->is_allowed_api_endpoint( $api_endpoint ) ) {
			return rest_ensure_response(
				array(
					'success' => false,
					'message' => __( 'Invalid API endpoint. Only trusted domains are allowed.', 'ultimate-post' ),
				)
			);
		}

		// draft existing builder template.
		$builder_parsed_args = array(
			'post_type'      => 'ultp_builder',
			'post_status'    => 'publish',
			'posts_per_page' => -1,
		);
		$builder_posts       = new \WP_Query( $builder_parsed_args );
		if ( is_array( $builder_posts->posts ) && ! empty( $builder_posts->posts ) ) {
			foreach ( $builder_posts->posts as $post ) {
				wp_update_post(
					array(
						'ID'          => $post->ID,
						'post_status' => 'draft',
					)
				);
			}
		}

		$response = wp_safe_remote_post(
			$api_endpoint . '/wp-json/importer/single',
			array(
				'method'  => 'POST',
				'timeout' => 120,
				'body'    => array(
					'license'  => Xpo::get_lc_key(),
					'ultp_ver' => ULTP_VER,
				),
			)
		);

		if ( is_wp_error( $response ) ) {
			return rest_ensure_response(
				array(
					'success'       => false,
					'response_data' => $response,
				)
			);
		}
		$response_data = json_decode( $response['body'] );
		if ( ! $response_data->success ) {
			return rest_ensure_response(
				array(
					'success'       => false,
					'response_data' => $response_data,
				)
			);
		}

		// site logo handle.
		if ( ! get_option( 'site_logo', '' ) && isset( $response_data->site_logo ) && $response_data->site_logo ) {
			update_option( 'site_logo', $this->upload_post_cat_media( $response_data->site_logo, '', 'Site Logo' ) );

			if ( isset( $response_data->dark_logo ) && $response_data->dark_logo ) {
				$dark_logo = $this->upload_post_cat_media( $response_data->dark_logo, '', 'Site Dark Logo' );
				update_option( 'ultp_site_dark_logo', wp_get_attachment_url( $dark_logo ) );
			}
		}

		// Templates Insertion.
		$inserted_meta          = array();
		$inserted_pages         = array();
		$inserted_header_footer = array();
		$importable_pages       = $response_data->content;

		$exclude_post_type = is_object( $post ) ? ( $post->excludepages ?? null ) : ( $post['excludepages'] ?? null );
		$excludepages      = json_decode( ultimate_post()->ultp_rest_sanitize_params( stripslashes( $exclude_post_type ) ), true );

		if ( ! empty( $importable_pages ) ) {
			foreach ( $importable_pages as $key => $val ) {
				$title = $val->name;
				if ( is_array( $excludepages ) && ! in_array( $title, $excludepages ) ) {
					$post_type = $val->type;
					$p_content = str_replace( array( 'u0022', 'u002d' ), array( '\u0022', '\u002d' ), $val->content );
					$p_content = str_replace( array( 'u003c', 'u003e', 'currentPostId' ), array( '<', '>', 'current_PostId' ), $p_content );
					$post_id   = wp_insert_post(
						array(
							'post_title'   => $title,
							'post_type'    => $post_type,
							'post_status'  => 'publish',
							'post_content' => $p_content,
						)
					);
					if ( $post_id ) {
						update_post_meta( $post_id, '__ultp_starter_pack_post', true );
						$inserted_pages[ $post_id ] = $title;

						if ( isset( $val->ultp_template ) && $val->ultp_template === 'ultp_page_template' ) {
							update_post_meta( $post_id, '_wp_page_template', 'ultp_page_template' );
						}
						if ( isset( $val->home_page ) && $val->home_page == 'home_page' ) {
							if ( get_option( 'show_on_front', true ) != 'page' ) {
								update_option( 'show_on_front', 'page' );
							}
							update_option( 'page_on_front', $post_id );
							$inserted_header_footer['home_page'] = $post_id;
						}
						if ( isset( $val->ultp_builder_type ) && ( $val->ultp_builder_type == 'header' || $val->ultp_builder_type == 'footer' ) ) {
							$inserted_header_footer[] = $post_id;
						}
						if ( $post_type == 'ultp_builder' && $val->ultp_builder_type ) {
							$conditions_settings     = get_option( 'ultp_builder_conditions', array() );
							$conditions              = $response_data->conditions;
							$ultp_builder_type       = $val->ultp_builder_type;
							$ultp_builder_id         = $val->id;
							$ultp_builder_conditions = $conditions->$ultp_builder_type;
							$ultp_builder_conditions = $ultp_builder_conditions->$ultp_builder_id;
							$conditions_settings[ $ultp_builder_type ][ $post_id ] = $ultp_builder_conditions;

							update_post_meta( $post_id, '__ultp_builder_type', $val->ultp_builder_type );
							update_option( 'ultp_builder_conditions', $conditions_settings );
						}
						if ( isset( $val->meta ) && is_array( $val->meta ) ) {
							foreach ( $val->meta as $k => $v ) {
								update_post_meta( $post_id, $k, str_replace( array( 'u0022', 'u002d' ), array( '\u0022', '\u002d' ), $v ) );
							}
						}
						if ( isset( $val->_ultp_css ) ) {
							$this->save_post_block_css( $post_id, str_replace( array( 'u0022', 'u002d' ), array( '\u0022', '\u002d' ), $val->_ultp_css ), '' );
						}
						$inserted_meta[ $post_id ] = $val->_ultp_css;
					}
				}
			}
		}

		// Menu Creation.
		$menuCreated      = array();
		$menu_item_parent = array();
		$response_menu    = $response_data->menu;
		if ( ! empty( $response_menu ) && is_array( $response_menu ) ) {
			foreach ( $response_menu as $key => $menu ) {
				$menu_exists = wp_get_nav_menu_object( $menu->title );
				if ( $menu_exists ) {
					wp_delete_term( $menu_exists->term_id, $menu_exists->taxonomy );
				}
				$menu_id = wp_create_nav_menu( $menu->title );
				if ( isset( $menu->items ) && $menu_id && ! empty( $menu->items ) ) {
					foreach ( $menu->items as $key => $v ) {
						$inserted = array_search( $v->title, $inserted_pages );
						if ( $inserted || $v->type == 'custom' || $v->type == 'category' ) {
							if (
								( $v->type == 'category' && get_term_by( 'name', $v->title, 'category' ) )
								|| $v->type != 'category'
							) {
								$item                     = array(
									'menu-item-title'  => $v->title,
									'menu-item-status' => 'publish',
								);
								$item['menu-item-object'] = $v->type;
								$item['menu-item-type']   = $v->post_type;
								if ( isset( $v->menu_item_parent ) && $v->menu_item_parent ) {
									$parent_id                     = $this->find_parent_nav_item( wp_get_nav_menu_items( $menu_id ), $v->menu_item_parent );
									$menu_item_parent[ $v->title ] = $parent_id;
									$item['menu-item-parent-id']   = $parent_id;
								}
								if ( $v->type == 'custom' ) {
									$item['menu-item-url'] = $v->url ? $v->url : home_url( '/' );
								} elseif ( $v->type == 'category' ) {
									$fetched_term = get_term_by( 'name', $v->title, 'category' );
									if ( $fetched_term ) {
										$item['menu-item-object-id'] = $fetched_term->term_id;
									}
								} else {
									$item['menu-item-object-id'] = $inserted;
								}
								wp_update_nav_menu_item( $menu_id, 0, $item );
							}
						}
					}
					update_term_meta( $menu_id, '__ultp_starter_pack_term', 'postx_term' );
					$menuCreated[ $menu_id ] = $item;
				}
			}
		}

		// Navigation Creation for Header Footer Builder.
		$navCreated = array();
		$navigation = $response_data->navigation; // returned from importer site.
		if ( ! empty( $inserted_header_footer ) && ! empty( $navigation ) ) {
			foreach ( $inserted_header_footer as $key => $builderID ) {
				$builder_post         = get_post( $builderID );
				$builder_post_content = $builder_post->post_content;
				foreach ( $navigation as $key => $v ) {
					$site_navID = $v->id;
					if ( strpos( $builder_post_content, 'wp:navigation' ) > -1 && ( strpos( $builder_post_content, '{"ref":' . $site_navID . ',' ) > -1 || strpos( $builder_post_content, '{"ref":' . $site_navID . '}' ) > -1 ) ) {

						$current_parsed_args      = array(
							'post_type'      => 'wp_navigation',
							'post_status'    => 'publish',
							'orderby'        => 'date',
							'order'          => 'ASC',
							'posts_per_page' => -1,
						);
						$navigation_current_posts = new \WP_Query( $current_parsed_args );
						$navigation_current_posts = $navigation_current_posts->posts;

						// check for currently same navigation exist or not.
						$new_navID = '';
						if ( ! $new_navID ) {
							$menu_exists = wp_get_nav_menu_object( $v->post_title );
							if ( $menu_exists ) {
								$menu_blocks = \WP_Classic_To_Block_Menu_Converter::convert( $menu_exists );
								$new_navID   = wp_insert_post(
									array(
										'post_content' => $menu_blocks,
										'post_title'   => $menu_exists->name,
										'post_name'    => $menu_exists->slug,
										'post_status'  => 'publish',
										'post_type'    => 'wp_navigation',
									)
								);
								update_post_meta( $new_navID, '__ultp_starter_pack_post', true );
							}
						}
						if ( strpos( $builder_post_content, '{"ref":' . $site_navID . ',' ) > -1 ) {
							$builder_post_content = str_replace( '{"ref":' . $site_navID . ',', '{"ref":' . $new_navID . ',', $builder_post_content );
						} elseif ( strpos( $builder_post_content, '{"ref":' . $site_navID . '}' ) ) {
							$builder_post_content = str_replace( '{"ref":' . $site_navID . '}', '{"ref":' . $new_navID . '}', $builder_post_content );
						}

						wp_update_post(
							array(
								'ID'           => $builderID,
								'post_content' => str_replace( array( 'u0022', 'u002d' ), array( '\u0022', '\u002d' ), $builder_post_content ),
							)
						);
						$navCreated[] = $new_navID;
					}
				}
			}
		}

		// Other Plugin Content creation.
		$other_plugin_content  = $response_data->other_plugin_content;
		$contact_forms         = $other_plugin_content->contact_form7;
		$mc4wp                 = $other_plugin_content->mc4wp;
		$wow_optin_template_id = isset( $other_plugin_content->wow_optin->id ) ? $other_plugin_content->wow_optin->id : 0;

		// contact form  7  post create.
		if ( is_array( $contact_forms ) && ! empty( $contact_forms ) ) {
			foreach ( $contact_forms as $post ) {
				$post_id = wp_insert_post(
					array(
						'post_title'   => $post->post_title,
						'post_type'    => 'wpcf7_contact_form',
						'post_status'  => 'publish',
						'post_content' => str_replace( array( 'u002d', '<wordpress@postxkit.wpxpo.com>' ), array( '\u002d', '' ), $post->post_content ),
					)
				);
				update_post_meta( $post_id, '_form', $post->_form );
				update_post_meta( $post_id, '_hash', $post->_hash );
				update_post_meta( $post_id, '__ultp_starter_pack_post', true );
			}
		}

		// mailchimp post create.
		if ( ! empty( $inserted_pages ) && ! empty( $mc4wp ) ) {
			foreach ( $inserted_pages as $id => $p_t ) {
				$current_post         = get_post( $id );
				$current_post_content = $current_post->post_content;
				foreach ( $mc4wp as $key => $v ) {
					$parsed_args               = array(
						'post_type'      => 'mc4wp-form',
						'post_status'    => 'publish',
						'posts_per_page' => -1,
					);
					$mc4wp_forms_data          = new \WP_Query( $parsed_args );
					$mc4wp_forms_current_posts = $mc4wp_forms_data->posts;

					$site_ID = $v->id;
					if ( strpos( $current_post_content, '[mc4wp_form id=' . $site_ID . ']' ) > -1 ) {
						$new_ID = '';
						// check for same mailchimp post.
						if ( ! empty( $mc4wp_forms_current_posts ) ) {
							foreach ( $mc4wp_forms_current_posts as $key => $val ) {
								if ( $val->post_title == $v->post_title ) {
									$new_ID = $val->ID;
								}
							}
						}
						if ( ! $new_ID ) {
							$new_ID = wp_insert_post(
								array(
									'post_title'   => $v->post_title,
									'post_type'    => 'mc4wp-form',
									'post_status'  => 'publish',
									'post_content' => $v->post_content,
								)
							);
							update_post_meta( $new_ID, '__ultp_starter_pack_post', true );
						}

						$current_post_content = str_replace( '[mc4wp_form id=' . $site_ID . ']', '[mc4wp_form id=' . $new_ID . ']', $current_post_content );
						wp_update_post(
							array(
								'ID'           => $id,
								'post_content' => str_replace( array( 'u0022', 'u002d' ), array( '\u0022', '\u002d' ), $current_post_content ),
							)
						);
					}
				}
			}
		}
		$wow_optin_template_import_status = 'successfully working';

		// $activated_plugins = $installed_plugin == 'yes' ? apply_filters( 'active_plugins', get_option( 'active_plugins' ) ) : array();
		// if ( in_array( 'optin/optin.php', $activated_plugins ) && $wow_optin_template_id && $installed_plugin == 'yes' ) {
		// try {
		// if ( class_exists( '\OPTN\Includes\Db', true ) && method_exists( '\OPTN\Includes\Db', 'get_instance' ) ) {
		// $db_instance = \OPTN\Includes\Db::get_instance();
		// if ( is_object( $db_instance ) && is_callable( array( $db_instance, 'activate_recipe' ) ) ) {
		// $db_instance->activate_recipe(
		// $wow_optin_template_id,
		// array(
		// 'disable_others' => true,
		// )
		// );
		// }
		// }
		// } catch ( \Throwable $e ) {
		// $wow_optin_template_import_status = 'have any problem to import Optin template.';
		// }
		// }
		// $wow_optin_template_import_status
		return rest_ensure_response(
			array(
				'success'                => true,
				'inserted_pages'         => $inserted_pages,
				'inserted_meta'          => $inserted_meta,
				'navCreated'             => $navCreated,
				'menuCreated'            => $menuCreated,
				'menu_item_parent'       => $menu_item_parent,
				'inserted_header_footer' => $inserted_header_footer,
				'wow_optin_status'       => $installed_plugin,
			)
		);
	}


	/**
	 * Find Menu Parent item
	 *
	 * @since 4.0.0
	 *
	 * @param array  $menu_items Array of menu items.
	 * @param string $title      Title of the parent menu item to find.
	 */
	public function find_parent_nav_item( $menu_items, $title ) {
		if ( $menu_items ) {
			foreach ( $menu_items as $menu_item ) {
				if ( $menu_item->title == $title ) {
					return $menu_item->ID;
				}
			}
		}
		return 0;
	}

	/**
	 * Save CSS of pages
	 *
	 * Saves the provided CSS content for a specific post ID. Depending on the operation type,
	 * it can also handle deletion of the CSS.
	 *
	 * @since 4.0.0
	 *
	 * @param int    $id   The post ID.
	 * @param string $css  The CSS content to save.
	 * @param string $type The operation type (e.g., 'delete').
	 * @throws Exception If the CSS cannot be saved or deleted.
	 */
	public function save_post_block_css( $id, $css = '', $type = '' ) {
		try {
			global $wp_filesystem;
			if ( ! $wp_filesystem ) {
				require_once ABSPATH . 'wp-admin/includes/file.php';
			}

			$upload_dir_url = wp_upload_dir();
			$dir            = trailingslashit( $upload_dir_url['basedir'] ) . 'ultimate-post/';

			$post_id        = (int) $id;
			$filename       = "ultp-css-{$post_id}.css";
			$ultp_block_css = $css;

			if ( $ultp_block_css ) {
				// Set Saving ID for Clean Cache.
				ultimate_post()->set_setting( 'save_version', wp_rand( 1, 1000 ) );

				update_post_meta( $post_id, '_ultp_active', 'yes' );

				WP_Filesystem( false, $upload_dir_url['basedir'], true );
				if ( ! $wp_filesystem->is_dir( $dir ) ) {
					$wp_filesystem->mkdir( $dir );
				}
				if ( ! $wp_filesystem->put_contents( $dir . $filename, $ultp_block_css ) ) {
					throw new Exception(__('CSS can not be saved due to permission!!!', 'ultimate-post')); //phpcs:ignore
				}
				update_post_meta( $post_id, '_ultp_css', $ultp_block_css );
				return array(
					'success' => true,
					'message' => __( 'PostX css file has been updated.', 'ultimate-post' ),
				);
			}
			if ( $type == 'delete' && file_exists( $dir . $filename ) ) {
				wp_delete_file( $dir . $filename );
			}
		} catch ( Exception $e ) {
			return array(
				'success' => false,
				'message' => $e->getMessage(),
			);
		}
	}

	/**
	 * Delete previos site import post/pages
	 *
	 * @since 4.0.0
	 *
	 * @param \WP_REST_Request $server The REST request object.
	 */
	public function deletepost_getnewsletters( $server ) {
		$post           = $server->get_params();
		$deletePrevious = isset( $post['deletePrevious'] ) ? sanitize_text_field( $post['deletePrevious'] ) : '';
		$get_newsletter = isset( $post['get_newsletter'] ) ? sanitize_text_field( $post['get_newsletter'] ) : '';
		$deleted_terms  = array();
		$deleted_posts  = array();
		if ( $deletePrevious == 'yes' ) {
			$site_logo = get_option( 'site_logo', '' );
			global $wpdb;
			$post_ids = $wpdb->get_col( $wpdb->prepare( "SELECT post_id FROM {$wpdb->postmeta} WHERE meta_key='__ultp_starter_pack_post'" ) );
			$terms    = $wpdb->get_col( $wpdb->prepare( "SELECT term_id FROM {$wpdb->termmeta} WHERE meta_key='__ultp_starter_pack_term'" ) );

			if ( isset( $post_ids ) && is_array( $post_ids ) ) {
				foreach ( $post_ids as $post_id ) {
					if ( get_post_type( $post_id ) == 'ultp_builder' ) {
						$conditions   = get_option( 'ultp_builder_conditions', array() );
						$builder_type = get_post_meta( $post_id, '__ultp_builder_type', true );
						if ( isset( $conditions[ $builder_type ][ $post_id ] ) ) {
							unset( $conditions[ $builder_type ][ $post_id ] );
							update_option( 'ultp_builder_conditions', $conditions );
						}
					}
					if ( $site_logo == $post_id ) {
						update_option( 'site_logo', '' );
					}
					$deleted_posts[] = $post_id;
					wp_delete_post( $post_id, true );
					$this->save_post_block_css( $post_id, '', 'delete' );
				}
			}
			if ( isset( $terms ) && is_array( $terms ) ) {
				foreach ( $terms as $term_id ) {
					$deleted_terms[] = $term_id;
					$term            = get_term( $term_id );
					wp_delete_term( $term_id, $term->taxonomy );
				}
			}
		}
		if ( $get_newsletter == 'yes' ) {
			DurbinClient::send( DurbinClient::ACTIVATE_ACTION );
		}

		return rest_ensure_response(
			array(
				'success' => true,
				'term'    => $deleted_terms,
				'posts'   => $deleted_posts,
			)
		);
	}

	/**
	 * Import Single Template
	 *
	 * @since 4.0.0
	 *
	 * @param \WP_REST_Request $server The REST request object.
	 */
	public function single_page_import( $server ) {
		$post         = $server->get_params();
		$id           = isset( $post['ID'] ) ? sanitize_text_field( $post['ID'] ) : '';
		$api_endpoint = isset( $post['api_endpoint'] ) ? sanitize_text_field( $post['api_endpoint'] ) : '';

		if ( $id && $api_endpoint ) {
			// SSRF protection: Validate API endpoint
			if ( ! $this->is_allowed_api_endpoint( $api_endpoint ) ) {
				return rest_ensure_response(
					array(
						'success' => false,
						'message' => __( 'Invalid API endpoint. Only trusted domains are allowed.', 'ultimate-post' ),
					)
				);
			}
			$import_single = array(
				'id'       => $id,
				'type'     => 'single',
				'license'  => Xpo::get_lc_key(),
				'ultp_ver' => ULTP_VER,
			);
			$response      = wp_safe_remote_post(
				$api_endpoint . '/wp-json/importer/single',
				array(
					'method'  => 'POST',
					'timeout' => 120,
					'body'    => $import_single,
				)
			);
			$response_data = json_decode( $response['body'] );
			if ( ! $response_data->success ) {
				wp_send_json(
					array(
						'success' => false,
					)
				);
			}
			$content = $response_data->content[0];
			return rest_ensure_response(
				array(
					'success' => true,
					'content' => $content,
				)
			);
		}
	}

	/**
	 * Create dummy posts
	 *
	 * @since 4.0.0
	 *
	 * @param array $importable_posts Array of importable post objects.
	 */
	public function starter_pack_dummy_post_creation( $importable_posts ) {
		$added_posts = array();
		if ( is_array( $importable_posts ) && ! empty( $importable_posts ) ) {
			foreach ( $importable_posts as $post ) {
				$post_id  = wp_insert_post(
					array(
						'post_title'   => $post->post_title,
						'post_type'    => 'post',
						'post_status'  => 'publish',
						'post_content' => str_replace( 'u002d', '\u002d', $post->post_content ),
					)
				);
				$image_id = $this->upload_post_cat_media( $post->img_src, $post_id, $post->post_title );
				set_post_thumbnail( $post_id, $image_id );

				update_post_meta( $post_id, '__ultp_starter_pack_post', true );
				if ( isset( $post->_ultp_css ) && $post->_ultp_css ) {
					$this->save_post_block_css( $post_id, str_replace( array( 'u0022', 'u002d' ), array( '\u0022', '\u002d' ), $post->_ultp_css ), '' );
				}
				$post_category = $post->post_category;
				$k             = 0;
				$cat_ids       = array();
				if ( is_array( $post_category ) && ! empty( $post_category ) ) {
					foreach ( $post_category as $i => $cat ) {
						$cat_id = $this->starter_pack_dummy_taxonomy_creation( $cat->name, $cat->slug, $cat->img_src, 'category' );
						wp_set_post_terms( $post_id, $cat_id, 'category', $k == 0 ? false : true );
						++$k;
						$cat_ids[] = $cat_id;
					}
				}
				$post_tags = $post->post_tags;
				$tag_ids   = array();
				$j         = 0;
				if ( is_array( $post_tags ) && ! empty( $post_tags ) ) {
					foreach ( $post_tags as $i => $tag ) {
						$tag_id = wp_set_post_terms( $post_id, $tag->slug, 'post_tag', $j == 0 ? false : true );
						if ( ! is_wp_error( $tag_id ) && is_array( $tag_id ) && isset( $tag_id[0] ) ) {
							update_term_meta( $tag_id[0], '__ultp_starter_pack_term', 'postx_term' );
							$tag_ids[] = $tag_id[0];
						}
						++$j;
					}
				}
				$added_posts[ $post_id ] = array(
					'title'   => $post->post_title,
					'cat_id'  => $cat_ids,
					'tag_ids' => $tag_ids,
				);
			}
		}
		return $added_posts;
	}

	/**
	 * Create dummy category of posts
	 *
	 * @since 4.0.0
	 *
	 * @param STRING $name     The name of the taxonomy term.
	 * @param STRING $slug     The slug for the taxonomy term.
	 * @param STRING $img_src  (Optional) The image source URL for the taxonomy term.
	 * @param STRING $taxonomy (Optional) The taxonomy type.
	 */
	public function starter_pack_dummy_taxonomy_creation( $name, $slug, $img_src = '', $taxonomy = '' ) {
		$new_taxonomy = get_term_by( 'slug', $slug, $taxonomy );
		if ( ! $new_taxonomy ) {
			$new_term = wp_insert_term(
				$name,
				$taxonomy,
				array(
					'slug' => $slug,
				)
			);
			if ( $new_term ) {
				if ( $img_src ) {
					$image_id = $this->upload_post_cat_media( $img_src, '', $name );
					update_term_meta( $new_term['term_id'], 'ultp_category_image', $image_id );
				}
				update_term_meta( $new_term['term_id'], '__ultp_starter_pack_term', 'postx_term' );

				return $new_term['term_id'];
			}
		} else {
			return $new_taxonomy->term_id;
		}
	}

	/**
	 * Upload image for post/category
	 *
	 * @since 4.0.0
	 *
	 * @param STRING $src     The source URL of the image.
	 * @param INT    $post_id The post ID to attach the image to.
	 * @param STRING $title   The title for the image.
	 */
	public function upload_post_cat_media( $src, $post_id, $title ) {
		if ( ! $src ) {
			return 0;
		}

		require_once ABSPATH . 'wp-admin/includes/media.php';
		require_once ABSPATH . 'wp-admin/includes/file.php';
		require_once ABSPATH . 'wp-admin/includes/image.php';

		$image_id = media_sideload_image( $src, $post_id, $title, 'id' );
		update_post_meta( $image_id, '__ultp_starter_pack_post', true );
		return $image_id;
	}

	/**
	 * Validate if the API endpoint is from an allowed domain (SSRF protection).
	 *
	 * @since 5.0.6
	 * @param string $url The URL to validate.
	 * @return bool True if allowed, false otherwise.
	 */
	private function is_allowed_api_endpoint( $url ) {
		$allowed_domains = array(
			'starter.postx.io',
			'postxkit.wpxpo.com',
		);

		$parsed_url = wp_parse_url( $url );
		if ( ! $parsed_url || empty( $parsed_url['host'] ) ) {
			return false;
		}

		$host = strtolower( $parsed_url['host'] );

		foreach ( $allowed_domains as $domain ) {
			$domain = strtolower( $domain );

			// Exact match OR valid subdomain
			if ( $host === $domain || substr( $host, - ( strlen( $domain ) + 1 ) ) === '.' . $domain ) {
				return true;
			}
		}

		return false;
	}
}

```