share-wc-cart-pdf.php

<?php
add_action( 'template_redirect', function() {
	if ( isset( $_POST['_action'] ) && $_POST['_action'] === 'wc_cart_pdf_share' ) {
		if ( ! wp_verify_nonce( $_POST['_wpnonce'] ?? '', 'wc_cart_pdf_share' ) ) {
			wp_die( esc_html__( 'Invalid nonce' ) );
		}

		if ( ! is_email( $_POST['email'] ?? '' ) ) {
			wp_die( esc_html__( 'Invalid email' ) );
		}

		if ( ! class_exists( '\\Mpdf\\Mpdf' ) ) {
			wp_die( esc_html__( 'WC Cart PDF not installed' ) );
		}

		$mpdf                       = new \Mpdf\Mpdf(
			array(
				'mode'         => get_locale(),
				'format'       => 'A4',
				'default_font' => 'dejavusans',
			)
		);
		$mpdf->shrink_tables_to_fit = 1;
		$mpdf->simpleTables         = true;
		$mpdf->packTableData        = true;
		$mpdf->autoLangToFont       = true;
	
		$content = $css = '';
	
		$cart_table = wc_locate_template( 'cart-table.php', '/woocommerce/wc-cart-pdf/', WC_CART_PDF_PATH . '/templates/' );
		$css        = wc_locate_template( 'pdf-styles.php', '/woocommerce/wc-cart-pdf/', WC_CART_PDF_PATH . '/templates/' );
	
		do_action( 'wc_cart_pdf_before_process' );
	
		/**
		 * Run the calculate totals method for plugins that modify the cart using this hook
		 */
		WC()->cart->calculate_totals();
	
		if ( file_exists( $cart_table ) ) {
			ob_start();
	
			include $cart_table;
	
			$content = ob_get_clean();
		}
	
		if ( file_exists( $css ) ) {
			ob_start();
	
			include $css;
	
			$css = apply_filters( 'woocommerce_email_styles', ob_get_clean() );
		}
	
		if ( is_rtl() ) {
			$mpdf->SetDirectionality( 'rtl' );
		}
	
		/**
		 * Hook to modify mPDF object before generating
		 *
		 * @since 2.0.6
		 */
		$mpdf = apply_filters( 'wc_cart_pdf_mpdf', $mpdf );
	
		$mpdf->WriteHTML( $css, \Mpdf\HTMLParserMode::HEADER_CSS );
		$mpdf->WriteHTML( $content, \Mpdf\HTMLParserMode::HTML_BODY );
		
		$file_path = get_temp_dir() . 'WC_Cart-Share-' . gmdate( 'Ymd' ) . bin2hex( openssl_random_pseudo_bytes( 5 ) ) . '.pdf';

		$mpdf->Output( $file_path, 'F' );

		$body = esc_html__( 'See attachment' );
		$attachments = array( $file_path );

		wp_mail( $_POST['email'], esc_html__( 'Email subject' ), $body, array(), $attachments );

		unlink( $file_path );
	}
} );

add_action( 'woocommerce_proceed_to_checkout', function() {
	?>

	<form method="post">
		<p>
			<input type="email" name="email" placeholder="<?php esc_html_e( 'Email address' ); ?>" />
			<?php wp_nonce_field( 'wc_cart_pdf_share' ); ?>
			<input type="hidden" name="_action" value="wc_cart_pdf_share" />
			<input type="submit" value="<?php esc_html_e( 'Send' ); ?>" />
		</p>
	</form>

	<?php
}, 22 );