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pdf-forms-for-contact-form-7.php
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<?php
/**
* Plugin Name: PDF Forms Filler for CF7
* Plugin URI: https://pdfformsfiller.org/
* Description: Build Contact Form 7 forms from PDF forms. Get PDFs auto-filled and attached to email messages and/or website responses on form submission.
* Version: 2.2.1
* Requires at least: 4.8
* Requires PHP: 5.2
* Requires Plugins: contact-form-7
* Author: Maximum.Software
* Author URI: https://maximum.software/
* Text Domain: pdf-forms-for-contact-form-7
* Domain Path: /languages
* License: GPLv3
* License URI: https://www.gnu.org/licenses/gpl-3.0.html
*/
if( ! defined( 'ABSPATH' ) )
return;
require_once untrailingslashit( dirname( __FILE__ ) ) . '/inc/tgm-config.php';
if( ! class_exists( 'WPCF7_Pdf_Forms' ) )
{
class WPCF7_Pdf_Forms
{
const VERSION = '2.2.1';
const MIN_WPCF7_VERSION = '5.0';
const MAX_WPCF7_VERSION = '6.0.99';
private static $BLACKLISTED_WPCF7_VERSIONS = array();
private static $instance = null;
private $pdf_ninja_service = null;
private $service = null;
private $registered_services = false;
private $downloads = null;
private $storage = null;
private $tmp_dir = null;
private $cf7_forms_save_overrides = null;
private $cf7_mail_attachments = array();
private function __construct()
{
add_action( 'admin_notices', array( $this, 'admin_notices' ) );
add_action( 'plugins_loaded', array( $this, 'plugin_init' ) );
add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), array( $this, 'action_links' ) );
add_action( 'upgrader_process_complete', array( $this, 'upgrader_process_complete' ), 99, 2 );
register_activation_hook( __FILE__, array( $this, 'plugin_activated' ) );
register_deactivation_hook( __FILE__, array( $this, 'plugin_deactivated' ) );
add_action( 'wpcf7_pdf_forms_cron', array( $this, 'cron' ) );
}
/**
* Returns a global instance of this class
*/
public static function get_instance()
{
if( !self::$instance )
self::$instance = new self;
return self::$instance;
}
/**
* Runs after all plugins have been loaded
*/
public function plugin_init()
{
add_action( 'init', array( $this, 'load_textdomain' ) );
add_action( 'admin_enqueue_scripts', array( $this, 'admin_enqueue_scripts' ) );
if( ! class_exists('WPCF7') || ! defined( 'WPCF7_VERSION' ) )
return;
add_action( 'wp_enqueue_scripts', array( $this, 'front_end_enqueue_scripts' ) );
add_filter( 'wpcf7_form_elements', array( $this, 'front_end_form_scripts' ) );
add_action( 'wp_ajax_wpcf7_pdf_forms_get_attachment_info', array( $this, 'wp_ajax_get_attachment_info' ) );
add_action( 'wp_ajax_wpcf7_pdf_forms_query_tags', array( $this, 'wp_ajax_query_tags' ) );
add_action( 'wp_ajax_wpcf7_pdf_forms_preload_data', array( $this, 'wp_ajax_preload_data' ) );
add_action( 'wp_ajax_wpcf7_pdf_forms_query_cf7_fields', array( $this, 'wp_ajax_query_cf7_fields' ) );
add_action( 'wp_ajax_wpcf7_pdf_forms_query_page_image', array( $this, 'wp_ajax_query_page_image' ) );
add_action( 'admin_init', array( $this, 'extend_tag_generator' ), 80 );
add_action( 'admin_menu', array( $this, 'register_services') );
add_filter( 'wpcf7_editor_panels', array( $this, 'editor_panels'), 10, 1 );
add_action( 'wpcf7_before_send_mail', array( $this, 'fill_pdfs' ), 1000, 3 );
if( version_compare( WPCF7_VERSION, '5.4.1' ) < 0 )
// WPCF7_Submission::add_extra_attachments didn't exist prior to CF7 v5.4.1 and a workaround is needed
add_filter( 'wpcf7_mail_components', array( $this, 'attach_files' ), 10, 3 );
add_action( 'wpcf7_mail_sent', array( $this, 'remove_tmp_dir' ), 99, 0 );
add_action( 'wpcf7_after_save', array( $this, 'update_post_attachments' ) );
add_filter( 'wpcf7_form_response_output', array( $this, 'change_response_nojs' ), 10, 4 );
if( version_compare( WPCF7_VERSION, '5.2' ) >= 0 )
// hook wpcf7_feedback_response (works only with CF7 version 5.2+)
add_filter( 'wpcf7_feedback_response', array( $this, 'change_response_js' ), 10, 2 );
else
// hook wpcf7_ajax_json_echo (needed only for CF7 versions < 5.2)
add_filter( 'wpcf7_ajax_json_echo', array( $this, 'change_response_js' ), 10, 2 );
// hook that allows to copy media and mapping
add_filter( 'wpcf7_copy', array( $this, 'duplicate_form_hook' ), 10, 2 );
add_filter( 'cron_schedules', array( $this, 'cron_schedules' ) );
// TODO: allow users to run this manually
add_action( 'admin_init', array( $this, 'upgrade_data' ) );
// handle change_response_nojs() hidden iframe download requests
if( isset( $_GET['wpcf7-pdf-forms-download'] ) )
$this->handle_hidden_iframe_download();
}
/**
* Loads plugin textdomain
*/
public function load_textdomain()
{
load_plugin_textdomain( 'pdf-forms-for-contact-form-7', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
}
/**
* Runs after the plugin have been activated/deactivated
*/
public function plugin_activated( $network_wide = false )
{
if( $network_wide )
{
$sites = get_sites( array( 'fields' => 'ids' ) );
foreach( $sites as $id )
{
switch_to_blog( $id );
$this->plugin_activated( false );
restore_current_blog();
}
return;
}
$this->enable_cron();
}
public function plugin_deactivated( $network_deactivating = false )
{
if( $network_deactivating )
{
$sites = get_sites( array( 'fields' => 'ids' ) );
foreach( $sites as $id )
{
switch_to_blog( $id );
$this->plugin_deactivated( false );
restore_current_blog();
}
return;
}
$this->disable_cron();
$this->get_downloads()->set_timeout(0)->delete_old_downloads();
}
/**
* Hook that adds a cron schedule
*/
public function cron_schedules( $schedules )
{
$interval = $this->get_downloads()->get_timeout();
$display = self::replace_tags( __( "Every {interval} seconds", 'pdf-forms-for-contact-form-7' ), array( 'interval' => $interval ) );
$schedules['wpcf7_pdf_forms_cron_frequency'] = array(
'interval' => $interval,
'display' => $display
);
return $schedules;
}
/**
* Enables cron
*/
private function enable_cron()
{
$due = wp_next_scheduled( 'wpcf7_pdf_forms_cron' );
$current_time = time();
$interval = $this->get_downloads()->get_timeout();
if( $due !== false && (
$due < $current_time - ( $interval + 60 ) // cron is not functional
|| $due > $current_time + $interval // interval changed to a smaller value
) )
{
$this->cron(); // run manually
wp_clear_scheduled_hook( 'wpcf7_pdf_forms_cron' );
$due = false;
}
if( $due === false )
wp_schedule_event( $current_time, 'wpcf7_pdf_forms_cron_frequency', 'wpcf7_pdf_forms_cron' );
}
/**
* Disables cron
*/
private function disable_cron()
{
wp_clear_scheduled_hook( 'wpcf7_pdf_forms_cron' );
}
/**
* Executes scheduled tasks
*/
public function cron()
{
$this->get_downloads()->delete_old_downloads();
}
/**
* Runs after plugin updates and triggers data migration
*/
public function upgrader_process_complete( $upgrader, $hook_extra )
{
$plugin_path = plugin_basename( __FILE__ );
if( $hook_extra['action'] == 'update'
&& $hook_extra['type'] == 'plugin'
&& isset( $hook_extra['plugins'] )
&& is_array( $hook_extra['plugins'] ) )
{
foreach( $hook_extra['plugins'] as $plugin )
{
if( $plugin == $plugin_path )
{
set_transient( 'wpcf7_pdf_forms_updated_old_version', self::VERSION );
break;
}
}
}
}
/**
* Returns sorted list of data migration scripts in the migrations directory
*/
private function get_migrations()
{
$migrations = array();
$dir = untrailingslashit( dirname( __FILE__ ) ) . DIRECTORY_SEPARATOR . 'migrations';
$contents = scandir( $dir );
foreach( $contents as $file )
{
$extension = end( explode( ".", $file ) );
$filepath = $dir . DIRECTORY_SEPARATOR . $file;
if( is_file( $filepath ) )
if( preg_match("/^(\d+\.\d+\.\d+)\.php$/u", $file, $matches) )
{
$version = $matches[1];
$migrations[$version] = $filepath;
}
}
uksort( $migrations, 'version_compare' );
return $migrations;
}
/**
* Runs data migration when triggered
*/
public function upgrade_data()
{
if( wp_doing_ajax() )
return;
$old_version = get_transient( 'wpcf7_pdf_forms_updated_old_version' );
if( !$old_version )
return;
delete_transient( 'wpcf7_pdf_forms_updated_old_version' );
$new_version = self::VERSION;
$migrations = $this->get_migrations();
foreach($migrations as $version => $script)
{
if( version_compare( $version, $old_version ) > 0
&& version_compare( $version, $new_version ) <= 0 )
$this->run_data_migration( $script );
}
}
/**
* Runs data migration script
*/
private function run_data_migration( $script )
{
try { include( $script ); }
catch( Exception $e ) { }
}
/**
* Checks if CF7 version is supported
*/
public function is_wpcf7_version_supported( $version )
{
if( version_compare( $version, self::MIN_WPCF7_VERSION ) < 0
|| version_compare( $version, self::MAX_WPCF7_VERSION ) > 0 )
return false;
foreach( self::$BLACKLISTED_WPCF7_VERSIONS as $blacklisted_version )
if( version_compare( $version, $blacklisted_version ) == 0 )
return false;
return true;
}
/**
* Adds plugin action links
*/
public function action_links( $links )
{
$links[] = '<a target="_blank" href="https://pdfformsfiller.org/docs/cf7/">'.esc_html__( "Docs", 'pdf-forms-for-contact-form-7' ).'</a>';
$links[] = '<a target="_blank" href="https://wordpress.org/support/plugin/pdf-forms-for-contact-form-7/">'.esc_html__( "Support", 'pdf-forms-for-contact-form-7' ).'</a>';
return $links;
}
/**
* Prints admin notices
*/
public function admin_notices()
{
if( ( ! class_exists('WPCF7') || ! defined( 'WPCF7_VERSION' ) ) )
{
if( current_user_can( 'activate_plugins' ) )
echo WPCF7_Pdf_Forms::render_error_notice( 'cf7-not-installed', array(
'label' => esc_html__( "PDF Forms Filler for CF7 plugin error", 'pdf-forms-for-contact-form-7' ),
'message' => esc_html__( "The required plugin 'Contact Form 7' version is not installed!", 'pdf-forms-for-contact-form-7' ),
) );
return;
}
if( ! $this->is_wpcf7_version_supported( WPCF7_VERSION ) )
if( current_user_can( 'activate_plugins' ) )
echo WPCF7_Pdf_Forms::render_warning_notice( 'unsupported-cf7-version-'.WPCF7_VERSION, array(
'label' => esc_html__( "PDF Forms Filler for CF7 plugin warning", 'pdf-forms-for-contact-form-7' ),
'message' =>
self::replace_tags(
esc_html__( "The currently installed version of 'Contact Form 7' plugin ({current-wpcf7-version}) may not be supported by the current version of 'PDF Forms Filler for CF7' plugin ({current-plugin-version}), please switch to 'Contact Form 7' plugin version {supported-wpcf7-version} or below to ensure that 'PDF Forms Filler for CF7' plugin would work correctly.", 'pdf-forms-for-contact-form-7' ),
array(
'current-wpcf7-version' => esc_html( defined( 'WPCF7_VERSION' ) ? WPCF7_VERSION : __( "Unknown version", 'pdf-forms-for-contact-form-7' ) ),
'current-plugin-version' => esc_html( self::VERSION ),
'supported-wpcf7-version' => esc_html( self::MAX_WPCF7_VERSION ),
)
),
) );
if( ( $service = $this->get_service() ) )
$service->admin_notices();
}
/**
* Loads the Pdf.Ninja service module
*/
private function load_pdf_ninja_service()
{
if( ! $this->pdf_ninja_service )
{
require_once untrailingslashit( dirname( __FILE__ ) ) . '/modules/pdf-ninja.php';
$this->pdf_ninja_service = WPCF7_Pdf_Ninja::get_instance();
}
return $this->pdf_ninja_service;
}
/**
* Returns the service module instance
*/
public function get_service()
{
$this->register_services();
if( ! $this->service )
$this->set_service( $this->load_pdf_ninja_service() );
return $this->service;
}
/**
* Sets the service module instance
*/
public function set_service( $service )
{
return $this->service = $service;
}
/**
* Loads and returns the storage module
*/
private function get_storage()
{
if( ! $this->storage )
{
require_once untrailingslashit( dirname( __FILE__ ) ) . '/modules/storage.php';
$this->storage = WPCF7_Pdf_Forms_Storage::get_instance();
}
return $this->storage;
}
/**
* Loads and returns the downloads module
*/
private function get_downloads()
{
if( !$this->downloads )
{
require_once untrailingslashit( dirname( __FILE__ ) ) . '/modules/downloads.php';
$this->downloads = WPCF7_Pdf_Forms_Downloads::get_instance();
}
return $this->downloads;
}
/**
* Adds necessary admin scripts and styles
*/
public function admin_enqueue_scripts( $hook )
{
wp_register_script( 'wpcf7_pdf_forms_notices_script', plugin_dir_url( __FILE__ ) . 'js/notices.js', array( 'jquery' ), self::VERSION );
wp_enqueue_script( 'wpcf7_pdf_forms_notices_script' );
if( ! class_exists('WPCF7') || ! defined( 'WPCF7_VERSION' ) )
return;
if( false !== strpos($hook, 'wpcf7') )
{
wp_register_style( 'select2', plugin_dir_url( __FILE__ ) . 'css/select2.min.css', array(), '4.0.13');
wp_register_script( 'select2', plugin_dir_url( __FILE__ ) . 'js/select2/select2.min.js', array( 'jquery' ), '4.0.13');
wp_register_script( 'wpcf7_pdf_forms_admin_script', plugin_dir_url( __FILE__ ) . 'js/admin.js', array( 'jquery', 'jcrop', 'select2' ), self::VERSION );
wp_register_style( 'wpcf7_pdf_forms_admin_style', plugin_dir_url( __FILE__ ) . 'css/admin.css', array( 'jcrop', 'select2' ), self::VERSION );
wp_localize_script( 'wpcf7_pdf_forms_admin_script', 'wpcf7_pdf_forms', array(
'WPCF7_VERSION' => WPCF7_VERSION,
'ajax_url' => admin_url( 'admin-ajax.php' ),
'ajax_nonce' => wp_create_nonce( 'wpcf7-pdf-forms-ajax-nonce' ),
'__Unknown_error' => __( 'Unknown error', 'pdf-forms-for-contact-form-7' ),
'__Confirm_Delete_Attachment' => __( 'Are you sure you want to delete this file? This will delete field mappings and image embeds associated with this file.', 'pdf-forms-for-contact-form-7' ),
'__Confirm_Delete_Mapping' => __( 'Are you sure you want to delete this mapping?', 'pdf-forms-for-contact-form-7' ),
'__Confirm_Delete_All_Mappings' => __( 'Are you sure you want to delete all mappings?', 'pdf-forms-for-contact-form-7' ),
'__Confirm_Attach_Empty_Pdf' => __( 'Are you sure you want to attach a PDF file without any form fields?', 'pdf-forms-for-contact-form-7' ),
'__Confirm_Delete_Embed' => __( 'Are you sure you want to delete this embeded image?', 'pdf-forms-for-contact-form-7' ),
'__Show_Help' => __( 'Show Help', 'pdf-forms-for-contact-form-7' ),
'__Hide_Help' => __( 'Hide Help', 'pdf-forms-for-contact-form-7' ),
'__Show_Tag_Generator_Tool' => __( 'Show Tag Generator', 'pdf-forms-for-contact-form-7' ),
'__Hide_Tag_Generator_Tool' => __( 'Hide Tag Generator', 'pdf-forms-for-contact-form-7' ),
'__PDF_Frame_Title' => __( 'Select a PDF file', 'pdf-forms-for-contact-form-7'),
'__PDF_Frame_Button' => __( 'Select', 'pdf-forms-for-contact-form-7'),
'__Custom_String' => __( "Custom text string...", 'pdf-forms-for-contact-form-7' ),
'__All_PDFs' => __( 'All PDFs', 'pdf-forms-for-contact-form-7' ),
'__All_Pages' => __( 'All', 'pdf-forms-for-contact-form-7' ),
'__Null_Value_Mapping' => __( '--- EMPTY ---', 'pdf-forms-for-contact-form-7' ),
) );
add_thickbox();
wp_enqueue_media();
wp_enqueue_script( 'wpcf7_pdf_forms_admin_script' );
wp_enqueue_style( 'wpcf7_pdf_forms_admin_style' );
}
}
/**
* Adds necessary global front-end scripts and styles
*/
function front_end_enqueue_scripts()
{
wp_enqueue_style( 'dashicons' ); // needed by the download link feature
}
/**
* Adds necessary front-end scripts and styles (only when CF7 form is displayed)
*/
function front_end_form_scripts( $form )
{
static $form_count = 0;
$form_count++;
if( $form_count == 1 ) // add only once
{
$style = '<link rel="stylesheet" href="' . plugin_dir_url( __FILE__ ) . 'css/frontend.css' . '" />';
$script = '<script type="text/javascript" src="' . plugin_dir_url( __FILE__ ) . 'js/frontend.js' . '?ver=' . self::VERSION . '"></script>';
$form = $style . $script . $form;
}
return $form;
}
/**
* Registers PDF forms category and PDF.Ninja service with the Contact Form 7 integration class
*/
public function register_services()
{
if( $this->registered_services )
return;
require_once untrailingslashit( dirname( __FILE__ ) ) . '/modules/service.php';
$integration = WPCF7_Integration::get_instance();
$integration->add_category( 'pdf_forms', __('PDF Forms', 'pdf-forms-for-contact-form-7') );
$this->registered_services = true;
$pdf_ninja_service = $this->load_pdf_ninja_service();
if( $pdf_ninja_service )
$integration->add_service( $pdf_ninja_service->get_service_name(), $pdf_ninja_service );
do_action( 'wpcf7_pdf_forms_register_services' );
}
/**
* Function for working with metadata
*/
public static function get_meta( $post_id, $key )
{
$value = get_post_meta( $post_id, "wpcf7-pdf-forms-" . $key, $single=true );
if( $value === '' )
return null;
return $value;
}
/**
* Function for working with metadata
*/
public static function set_meta( $post_id, $key, $value )
{
$oldval = get_post_meta( $post_id, "wpcf7-pdf-forms-" . $key, true );
if( $oldval !== '' && $value === null)
delete_post_meta( $post_id, "wpcf7-pdf-forms-" . $key );
else
{
// wp bug workaround
// https://developer.wordpress.org/reference/functions/update_post_meta/#workaround
$fixed_value = wp_slash( $value );
update_post_meta( $post_id, "wpcf7-pdf-forms-" . $key, $fixed_value, $oldval );
}
return $value;
}
/**
* Function for working with metadata
*/
public static function unset_meta( $post_id, $key )
{
delete_post_meta( $post_id, "wpcf7-pdf-forms-" . $key );
}
/**
* Attaches an attachment to a post
*/
public function post_add_pdf( $post_id, $attachment_id, $options )
{
// if this attachment is already attached, create a copy
if( wp_get_post_parent_id( $attachment_id ) > 0 )
{
$filepath = get_attached_file( $attachment_id );
$temp_filepath = wp_tempnam();
if( copy( $filepath, $temp_filepath ) === FALSE )
return;
$copy_suffix = sanitize_file_name( __( "Copy", 'pdf-forms-for-contact-form-7' ) );
$base_filename = preg_replace( '/\-' . preg_quote( $copy_suffix , "/" ) . '(\-[0-9]+)?$/iu', '', pathinfo( $filepath, PATHINFO_FILENAME ) );
$copy_filename = $base_filename . '-' . $copy_suffix . '.' . pathinfo( $filepath, PATHINFO_EXTENSION );
$copy_attachment_id = media_handle_sideload( array(
'tmp_name' => $temp_filepath,
'name' => $copy_filename
), $post_id);
if( is_wp_error( $copy_attachment_id ) )
{
@unlink( $temp_filepath );
return;
}
$attachment_id = $copy_attachment_id;
}
wp_update_post( array( 'ID' => $attachment_id, 'post_parent' => $post_id ) );
$this->post_update_pdf( $post_id, $attachment_id, $options );
return $attachment_id;
}
private static $pdf_options = array('skip_empty' => false, 'attach_to_mail_1' => true, 'attach_to_mail_2' => false, 'flatten' => false, 'filename' => "", 'save_directory'=>"", 'download_link' => false, 'download_link_auto' => false );
private static $public_pdf_options = array('download_link', 'download_link_auto');
/**
* Updates post attachment options
*/
public function post_update_pdf( $post_id, $attachment_id, $options )
{
$values = array();
foreach( self::$pdf_options as $option => $default )
if( array_key_exists( $option, $options ) )
$values[$option] = $options[$option];
else
$values[$option] = $default;
self::set_meta( $attachment_id, 'options-'.$post_id, self::json_encode( $values ) );
}
/**
* Retreives all PDF attachments of a post
*/
public function post_get_all_pdfs( $post_id )
{
$pdfs = array();
foreach( get_attached_media( 'application/pdf', $post_id ) as $attachment )
{
$attachment_id = $attachment->ID;
$options = array();
$values = self::get_meta( $attachment_id, 'options-'.$post_id );
if( $values )
$values = json_decode( $values, true );
if( !$values )
$values = array();
foreach( self::$pdf_options as $option => $default )
if( array_key_exists( $option, $values ) )
$options[$option] = $values[$option];
else
$options[$option] = $default;
$pdfs[$attachment_id] = array( 'attachment_id' => $attachment_id, 'options' => $options );
}
return $pdfs;
}
/**
* Removes an attachment from a post
*/
public function post_del_pdf( $post_id, $attachment_id )
{
wp_update_post( array( 'ID' => $attachment_id, 'post_parent' => 0 ) );
self::unset_meta( $attachment_id, 'options-'.$post_id );
}
/**
* Hook that runs on form copy/duplicate forms with the editor
*/
function duplicate_form_hook( $new, $instance )
{
$prev_post_id = $instance->id();
$attachments = $this->post_get_all_pdfs( $prev_post_id );
$mappings = self::get_meta( $prev_post_id, 'mappings' );
if( $mappings )
$mappings = json_decode( $mappings, true );
if( !is_array( $mappings ) )
$mappings = array();
$value_mappings = self::get_meta( $prev_post_id, 'value_mappings' );
if( $value_mappings )
$value_mappings = json_decode( $value_mappings, true );
if( !is_array( $value_mappings ) )
$value_mappings = array();
$embeds = self::get_meta( $prev_post_id, 'embeds' );
if( $embeds )
$embeds = json_decode( $embeds, true );
if( !is_array( $embeds ) )
$embeds = array();
$this->cf7_forms_save_overrides = array( 'attachments' => $attachments , 'mappings' => $mappings , 'value_mappings' => $value_mappings , 'embeds' => $embeds );
return $new;
}
/**
* Adds editor panels
*/
function editor_panels( $panels )
{
$panels += array(
'wpcf7-forms-panel' => array(
'title' => __( "PDF Forms Filler", 'pdf-forms-for-contact-form-7' ),
'callback' => array( $this, 'render_settings_panel' ),
),
);
return $panels;
}
/**
* Renders the settings panel
*/
function render_settings_panel()
{
$messages = '';
$service = $this->get_service();
if( $service && is_callable( array( $service, 'thickbox_messages' ) ) )
$messages .= $service->thickbox_messages();
echo self::render( 'settings_panel', array(
'post-id' => esc_html( WPCF7_ContactForm::get_current()->id() ),
'pdf-forms-filler-title' => esc_html__( "PDF Forms Filler", 'pdf-forms-for-contact-form-7' ),
'messages' => $messages,
'instructions' => esc_html__( "You can use this panel to attach a PDF file to this contact form and link form-tags and mail-tags to fields in the PDF file. It is possible to link a combination of mail-tags to PDF fields. You can also embed images (from URLs or attached files) into the PDF file. Changes here are applied when the contact form is saved.", 'pdf-forms-for-contact-form-7' ),
'attach-pdf' => esc_html__( "Attach a PDF File", 'pdf-forms-for-contact-form-7' ),
'delete' => esc_html__( 'Delete', 'pdf-forms-for-contact-form-7' ),
'map-value' => esc_html__( 'Map Value', 'pdf-forms-for-contact-form-7' ),
'options' => esc_html__( 'Options', 'pdf-forms-for-contact-form-7' ),
'skip-when-empty' => esc_html__( 'Skip when empty', 'pdf-forms-for-contact-form-7' ),
'attach-to-mail-1' => esc_html__( 'Attach to primary email message', 'pdf-forms-for-contact-form-7' ),
'attach-to-mail-2' => esc_html__( 'Attach to secondary email message', 'pdf-forms-for-contact-form-7' ),
'flatten' => esc_html__( 'Flatten', 'pdf-forms-for-contact-form-7' ),
'filename' => esc_html__( 'Filename (mail-tags can be used)', 'pdf-forms-for-contact-form-7' ),
'save-directory'=> esc_html__( 'Save PDF file on the server at the given path relative to wp-content/uploads (mail-tags can be used; if empty, PDF file is not saved on disk)', 'pdf-forms-for-contact-form-7' ),
'download-link' => esc_html__( 'Add filled PDF download link to form submission response', 'pdf-forms-for-contact-form-7' ),
'download-link-auto' => esc_html__( 'Trigger an automatic download of the filled PDF file on a successful form submission response', 'pdf-forms-for-contact-form-7' ),
'field-mapping' => esc_html__( 'Field Mapper Tool', 'pdf-forms-for-contact-form-7' ),
'field-mapping-help' => esc_html__( 'This tool can be used to link form fields and mail-tags to fields in the attached PDF files. When your users submit the form, input from form fields and other mail-tags will be inserted into the corresponding fields in the PDF file. CF7 to PDF field value mappings can also be created to enable the replacement of CF7 data when PDF fields are filled.', 'pdf-forms-for-contact-form-7' ),
'pdf-field' => esc_html__( 'PDF field', 'pdf-forms-for-contact-form-7' ),
'cf7-field-or-mail-tags' => esc_html__( 'CF7 field/mail-tags', 'pdf-forms-for-contact-form-7' ),
'add-mapping' => esc_html__( 'Add Mapping', 'pdf-forms-for-contact-form-7' ),
'delete-all-mappings' => esc_html__( 'Delete All', 'pdf-forms-for-contact-form-7' ),
'insert-tag' => esc_html__( "Insert and Link", 'pdf-forms-for-contact-form-7' ),
'generate-and-insert-all-tags-message' => esc_html__( "This button allows you to generate tags for all remaining unlinked PDF fields, insert them into the form and link them to their corresponding fields.", 'pdf-forms-for-contact-form-7' ),
'insert-and-map-all-tags' => esc_html__( "Insert & Link All", 'pdf-forms-for-contact-form-7' ),
'image-embedding' => esc_html__( 'Image Embedding Tool', 'pdf-forms-for-contact-form-7' ),
'image-embedding-help'=> esc_html__( 'This tool allows embedding of images into PDF files. Images are taken from file upload fields or URL field values. You can select a PDF file page and draw a bounding box for image insertion. Alternatively, you can insert your image in the center of every page.', 'pdf-forms-for-contact-form-7' ),
'add-cf7-field-embed' => esc_html__( 'Embed Image', 'pdf-forms-for-contact-form-7' ),
'delete-cf7-field-embed' => esc_html__( 'Delete', 'pdf-forms-for-contact-form-7' ),
'pdf-file' => esc_html__( 'PDF file', 'pdf-forms-for-contact-form-7' ),
'page' => esc_html__( 'Page', 'pdf-forms-for-contact-form-7' ),
'image-region-selection-hint' => esc_html__( 'Select a region where the image needs to be embeded.', 'pdf-forms-for-contact-form-7' ),
'top' => esc_html__( 'Top', 'pdf-forms-for-contact-form-7' ),
'left' => esc_html__( 'Left', 'pdf-forms-for-contact-form-7' ),
'width' => esc_html__( 'Width', 'pdf-forms-for-contact-form-7' ),
'height' => esc_html__( 'Height', 'pdf-forms-for-contact-form-7' ),
'pts' => esc_html__( 'pts', 'pdf-forms-for-contact-form-7' ),
'help-message' => self::replace_tags(
esc_html__( "Have a question/comment/problem? Feel free to use {a-href-forum}the support forum{/a} and view {a-href-tutorial}the tutorial video{/a}.", 'pdf-forms-for-contact-form-7' ),
array(
'a-href-forum' => '<a href="https://wordpress.org/support/plugin/pdf-forms-for-contact-form-7/" target="_blank">',
'a-href-tutorial' => '<a href="https://youtu.be/jy84xqnj0Zk" target="_blank">',
'/a' => '</a>',
)
),
'show-help' => esc_html__( 'Show Help', 'pdf-forms-for-contact-form-7' ),
'hide-help' => esc_html__( 'Hide Help', 'pdf-forms-for-contact-form-7' ),
) );
}
/**
* Hook that runs on form save and attaches all PDFs that were attached to forms with the editor
*/
public function update_post_attachments( $contact_form )
{
$post_id = $contact_form->id();
$data = null;
if( is_array( $this->cf7_forms_save_overrides ) )
$data = $this->cf7_forms_save_overrides;
else if( isset( $_POST['wpcf7-pdf-forms-data'] ) )
$data = json_decode( wp_unslash( $_POST['wpcf7-pdf-forms-data'] ), true );
if( !is_array( $data ) )
return;
if( isset( $data['attachments'] ) && is_array( $new_attachments = $data['attachments'] ) )
{
$old_attachments = $this->post_get_all_pdfs( $post_id );
$new_attachment_ids = array();
foreach( $new_attachments as $attachment )
{
$attachment_id = intval( $attachment['attachment_id'] );
if( $attachment_id > 0 )
if( current_user_can( 'edit_post', $attachment_id ) )
{
$options = array();
if( isset( $attachment['options'] ) )
$options = $attachment['options'];
if( ! isset( $old_attachments[$attachment_id] ) )
{
$new_attachment_id = $this->post_add_pdf( $post_id, $attachment_id, $options );
if( $attachment_id != $new_attachment_id )
{
// replace old attachment id in mappings
if( isset( $data['mappings'] ) && is_array( $data['mappings'] ) )
{
foreach( $data['mappings'] as &$mapping )
if( isset( $mapping['pdf_field'] ) )
$mapping['pdf_field'] = preg_replace( '/^' . preg_quote( $attachment_id . '-' ) . '/i', intval( $new_attachment_id ) . '-', $mapping['pdf_field'] );
unset($mapping);
}
// replace old attachment id in value mappings
if( isset( $data['value_mappings'] ) && is_array( $data['value_mappings'] ) )
{
foreach( $data['value_mappings'] as &$value_mapping )
if( isset( $value_mapping['pdf_field'] ) )
$value_mapping['pdf_field'] = preg_replace( '/^' . preg_quote( $attachment_id . '-' ) . '/i', intval( $new_attachment_id ) . '-', $value_mapping['pdf_field'] );
unset($value_mapping);
}
// replace old attachment id in embeds
if( isset( $data['embeds'] ) && is_array( $data['embeds'] ) )
{
foreach( $data['embeds'] as &$embed )
if( isset( $embed['attachment_id'] ) && $embed['attachment_id'] == $attachment_id )
$embed['attachment_id'] = $new_attachment_id;
unset($embed);
}
// TODO: replace old attachment id in tag generator tool tags in the form body and settings
$attachment_id = $new_attachment_id;
}
}
else
$this->post_update_pdf( $post_id, $attachment_id, $options );
$new_attachment_ids[$attachment_id] = $attachment_id;
}
}
foreach( $old_attachments as $attachment_id => $attachment )
{
if( ! isset( $new_attachment_ids[$attachment_id] ) )
$this->post_del_pdf( $post_id, $attachment_id );
}
}
if( isset( $data['mappings'] ) && is_array( $new_mappings = $data['mappings'] ) )
{
$mappings = array();
foreach( $new_mappings as $mapping )
{
if( isset( $mapping['cf7_field'] ) && isset( $mapping['pdf_field'] ) )
if( self::wpcf7_field_name_decode( $mapping['cf7_field'] ) === FALSE )
$mappings[] = array( 'cf7_field' => $mapping['cf7_field'], 'pdf_field' => $mapping['pdf_field'] );
if( isset( $mapping['mail_tags'] ) && isset( $mapping['pdf_field'] ) )
$mappings[] = array( 'mail_tags' => $mapping['mail_tags'], 'pdf_field' => $mapping['pdf_field'] );
}
self::set_meta( $post_id, 'mappings', self::json_encode( $mappings ) );
}
if( isset( $data['value_mappings'] ) && is_array( $new_value_mappings = $data['value_mappings'] ) )
{
$value_mappings = array();
foreach( $new_value_mappings as $value_mapping )
{
if( isset( $value_mapping['pdf_field'] ) && isset( $value_mapping['cf7_value'] ) && isset( $value_mapping['pdf_value'] ) )
$value_mappings[] = array( 'pdf_field' => $value_mapping['pdf_field'], 'cf7_value' => $value_mapping['cf7_value'], 'pdf_value' => $value_mapping['pdf_value'] );
}
self::set_meta( $post_id, 'value_mappings', self::json_encode( $value_mappings ) );
}
if( isset( $data['embeds'] ) && is_array( $new_embeds = $data['embeds'] ) )
{
$embeds = array();
foreach( $new_embeds as $embed )
if( (isset( $embed['cf7_field'] ) || isset( $embed['mail_tags'] )) && isset( $embed['attachment_id'] ) )
$embeds[] = $embed;
self::set_meta( $post_id, 'embeds', self::json_encode( $embeds ) );
}
}
/**
* Downloads a file from the given URL and saves the contents to the given filepath, returns mime type via argument
*/
private static function download_file( $url, $filepath, &$mimetype = null )
{
// if this url points to the site, copy the file directly
$site_url = trailingslashit( get_site_url() );
if( substr( $url, 0, strlen( $site_url ) ) == $site_url )
{
$path = substr( $url, strlen( $site_url ) );
$home_path = trailingslashit( realpath( dirname(__FILE__) . '/../../../' ) );
$sourcepath = realpath( $home_path . $path );
if( $home_path && $sourcepath && substr( $sourcepath, 0, strlen( $home_path ) ) == $home_path )
if( is_file( $sourcepath ) )
if( copy( $sourcepath, $filepath ) )
{
$mimetype = self::get_mime_type( $sourcepath );
return;
}
}
$args = array(
'compress' => true,
'decompress' => true,
'timeout' => 100,
'redirection' => 5,
'user-agent' => 'wpcf7-pdf-forms/' . self::VERSION,
);
$response = wp_remote_get( $url, $args );
if( is_wp_error( $response ) )
throw new Exception(
self::replace_tags(
__( "Failed to download file: {error-message}", 'pdf-forms-for-contact-form-7' ),
array( 'error-message' => $response->get_error_message() )
)
);
$mimetype = wp_remote_retrieve_header( $response, 'content-type' );
$body = wp_remote_retrieve_body( $response );
if( file_put_contents( $filepath, $body ) === false || ! is_file( $filepath ) )
throw new Exception( __( "Failed to create file", 'pdf-forms-for-contact-form-7' ) );
}
/**
* Get temporary directory path
*/
public static function get_tmp_path()
{
static $uploads_dir;
if( ! $uploads_dir )
{
wpcf7_init_uploads(); // Confirm upload dir
$uploads_dir = wpcf7_upload_tmp_dir();
}
return trailingslashit( $uploads_dir );
}
/**
* Creates a temporary directory
*/
public function create_tmp_dir()
{
if( ! $this->tmp_dir )
$this->tmp_dir = wpcf7_maybe_add_random_dir( self::get_tmp_path() );
return trailingslashit( $this->tmp_dir );
}
/**
* Removes a temporary directory
*/
public function remove_tmp_dir()
{
if( ! $this->tmp_dir )
return;
// remove files in the directory
$tmp_dir_slash = trailingslashit( $this->tmp_dir );
$files = array_merge( glob( $tmp_dir_slash . '*' ), glob( $tmp_dir_slash . '.*' ) );
while( $file = array_shift( $files ) )
if( is_file( $file ) )
@unlink( $file );
@rmdir( $this->tmp_dir );
$this->tmp_dir = null;
}
/**
* Creates a temporary file path (but not the file itself)
*/
private function create_tmp_filepath( $filename )
{
$uploads_dir = $this->create_tmp_dir();
$filename = sanitize_file_name( wpcf7_canonicalize( $filename ) );
$filename = wp_unique_filename( $uploads_dir, $filename );
return trailingslashit( $uploads_dir ) . $filename;
}
/**
* Returns MIME type of the file
*/
public static function get_mime_type( $filepath )
{
if( ! is_file( $filepath ) )
return null;
$mimetype = null;
if( function_exists( 'finfo_open' ) )
{
if( version_compare( phpversion(), "5.3" ) < 0 )
{
$finfo = finfo_open( FILEINFO_MIME );
if( $finfo )
{
$mimetype = finfo_file( $finfo, $filepath );
$mimetype = explode( ";", $mimetype );
$mimetype = reset( $mimetype );
finfo_close( $finfo );
}