Attach WooCommerce download docs to Contact Form 7 email

attach-download-files-to-cf7-email.php

<?php
/*
Plugin Name: Attach WooCommerce download docs to Contact Form 7 email
Plugin URI: https://www.damiencarbery.com/
Description: Use a CF7 filter to attach a WooCommerce product's downloadable files to the email.
Author: Damien Carbery
Version: 0.2
*/



class AttachDownloadDocsToCF7Email {
	private $cf7_form_id;


	// Returns an instance of this class. 
	public static function get_instance() {
		if ( null == self::$instance ) {
			self::$instance = new self;
		} 
		return self::$instance;
	}


	// Initialize the plugin variables.
	public function __construct() {
		$this->cf7_form_id = 79;

		$this->init();
	}


	// Set up WordPress specfic actions.
	public function init() {
		// Add downloadable files to email as an attachment
		add_filter( 'wpcf7_mail_components', array( $this, 'attach_downloadable_files' ), 10, 3 );
	}
	
	
	public function attach_downloadable_files( $components, $current_cf7_form, $form_object ) {
		// Verify that the we are processing the correct form.
		if ( $this->cf7_form_id != $current_cf7_form->id() ) {
			//error_log( 'Form ID mismatch: Is ' . $current_cf7_form->id() . '; expecting: ' . $this->cf7_form_id );
			return $components;
		}

		// Ensure that a match was found.
		if ( 1 !== preg_match( '/Product ID: (\d+)/m', $components[ 'body' ], $matches ) ) {
			//error_log( 'Product ID regex error: ' . var_export( $components[ 'body' ], true ) );
			return $components;
		}
		$product_id = $matches[1];

		// Check that the matched product ID is a number.
		if ( !is_numeric( $product_id ) || $product_id < 0 ) {
			//error_log( 'Product ID error: ' . var_export( $product_id, true ) );
			return $components;
		}
			
		// Create a product object...
		$product = wc_get_product( $product_id );
		// checking that the ID is a valid Downloadable product.
		if ( is_object( $product ) && $product->is_downloadable() ) {
			$uploads = wp_upload_dir( null, false );

			foreach( $product->get_downloads() as $key_download_id => $download ) {
				$file = $download->get_file();
				//error_log( 'Name: ' . $download->get_name() );
				//error_log( 'URL: ' . $file );

				// $file is a url but we need a file so use $uploads elements to convert
				// the url into a path.
				$file = str_replace( $uploads[ 'baseurl' ], $uploads[ 'basedir' ], $file );

				// Verify that the file exists before appending it to the attachments array.
				if ( file_exists( $file ) ) {
					$components[ 'attachments' ][] = $file;
				}
				else {
					//error_log( 'File: ' . $file . ' (DOES NOT EXIST)' );
				}
			}
		}

		//error_log( 'Attachments: ' . var_export( $components[ 'attachments' ], true ) );

		return $components;
	}
}

$AttachDownloadDocsToCF7Email = new AttachDownloadDocsToCF7Email();