woocommerce/includes/emails/class-wc-email.php

856 lines
25 KiB
PHP

<?php
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
if ( class_exists( 'WC_Email', false ) ) {
return;
}
/**
* Email Class
*
* WooCommerce Email Class which is extended by specific email template classes to add emails to WooCommerce
*
* @class WC_Email
* @version 2.5.0
* @package WooCommerce/Classes/Emails
* @author WooThemes
* @extends WC_Settings_API
*/
class WC_Email extends WC_Settings_API {
/**
* Email method ID.
* @var String
*/
public $id;
/**
* Email method title.
* @var string
*/
public $title;
/**
* 'yes' if the method is enabled.
* @var string yes, no
*/
public $enabled;
/**
* Description for the email.
* @var string
*/
public $description;
/**
* Plain text template path.
* @var string
*/
public $template_plain;
/**
* HTML template path.
* @var string
*/
public $template_html;
/**
* Template path.
* @var string
*/
public $template_base;
/**
* Recipients for the email.
* @var string
*/
public $recipient;
/**
* Heading for the email content.
* @var string
*/
public $heading;
/**
* Subject for the email.
* @var string
*/
public $subject;
/**
* Object this email is for, for example a customer, product, or email.
* @var object|bool
*/
public $object;
/**
* Strings to find in subjects/headings.
* @var array
*/
public $find = array();
/**
* Strings to replace in subjects/headings.
* @var array
*/
public $replace = array();
/**
* Mime boundary (for multipart emails).
* @var string
*/
public $mime_boundary;
/**
* Mime boundary header (for multipart emails).
* @var string
*/
public $mime_boundary_header;
/**
* True when email is being sent.
* @var bool
*/
public $sending;
/**
* True when the email notification is sent manually only.
* @var bool
*/
protected $manual = false;
/**
* True when the email notification is sent to customers.
* @var bool
*/
protected $customer_email = false;
/**
* List of preg* regular expression patterns to search for,
* used in conjunction with $plain_replace.
* https://raw.github.com/ushahidi/wp-silcc/master/class.html2text.inc
* @var array $plain_search
* @see $plain_replace
*/
public $plain_search = array(
"/\r/", // Non-legal carriage return
'/&(nbsp|#160);/i', // Non-breaking space
'/&(quot|rdquo|ldquo|#8220|#8221|#147|#148);/i', // Double quotes
'/&(apos|rsquo|lsquo|#8216|#8217);/i', // Single quotes
'/&gt;/i', // Greater-than
'/&lt;/i', // Less-than
'/&#38;/i', // Ampersand
'/&#038;/i', // Ampersand
'/&amp;/i', // Ampersand
'/&(copy|#169);/i', // Copyright
'/&(trade|#8482|#153);/i', // Trademark
'/&(reg|#174);/i', // Registered
'/&(mdash|#151|#8212);/i', // mdash
'/&(ndash|minus|#8211|#8722);/i', // ndash
'/&(bull|#149|#8226);/i', // Bullet
'/&(pound|#163);/i', // Pound sign
'/&(euro|#8364);/i', // Euro sign
'/&#36;/', // Dollar sign
'/&[^&\s;]+;/i', // Unknown/unhandled entities
'/[ ]{2,}/', // Runs of spaces, post-handling
);
/**
* List of pattern replacements corresponding to patterns searched.
* @var array $plain_replace
* @see $plain_search
*/
public $plain_replace = array(
'', // Non-legal carriage return
' ', // Non-breaking space
'"', // Double quotes
"'", // Single quotes
'>', // Greater-than
'<', // Less-than
'&', // Ampersand
'&', // Ampersand
'&', // Ampersand
'(c)', // Copyright
'(tm)', // Trademark
'(R)', // Registered
'--', // mdash
'-', // ndash
'*', // Bullet
'£', // Pound sign
'EUR', // Euro sign. € ?
'$', // Dollar sign
'', // Unknown/unhandled entities
' ', // Runs of spaces, post-handling
);
/**
* Constructor.
*/
public function __construct() {
// Init settings
$this->init_form_fields();
$this->init_settings();
// Save settings hook
add_action( 'woocommerce_update_options_email_' . $this->id, array( $this, 'process_admin_options' ) );
// Default template base if not declared in child constructor
if ( is_null( $this->template_base ) ) {
$this->template_base = WC()->plugin_path() . '/templates/';
}
// Settings
$this->heading = $this->get_option( 'heading', $this->heading );
$this->subject = $this->get_option( 'subject', $this->subject );
$this->email_type = $this->get_option( 'email_type' );
$this->enabled = $this->get_option( 'enabled' );
// Find/replace
$this->find['blogname'] = '{blogname}';
$this->find['site-title'] = '{site_title}';
$this->replace['blogname'] = $this->get_blogname();
$this->replace['site-title'] = $this->get_blogname();
// For multipart messages
add_action( 'phpmailer_init', array( $this, 'handle_multipart' ) );
}
/**
* Handle multipart mail.
*
* @param PHPMailer $mailer
* @return PHPMailer
*/
public function handle_multipart( $mailer ) {
if ( $this->sending && 'multipart' === $this->get_email_type() ) {
$mailer->AltBody = wordwrap( preg_replace( $this->plain_search, $this->plain_replace, strip_tags( $this->get_content_plain() ) ) );
$this->sending = false;
}
return $mailer;
}
/**
* Format email string.
*
* @param mixed $string
* @return string
*/
public function format_string( $string ) {
return str_replace( apply_filters( 'woocommerce_email_format_string_find', $this->find, $this ), apply_filters( 'woocommerce_email_format_string_replace', $this->replace, $this ), $string );
}
/**
* Get email subject.
*
* @return string
*/
public function get_subject() {
return apply_filters( 'woocommerce_email_subject_' . $this->id, $this->format_string( $this->subject ), $this->object );
}
/**
* Get email heading.
*
* @return string
*/
public function get_heading() {
return apply_filters( 'woocommerce_email_heading_' . $this->id, $this->format_string( $this->heading ), $this->object );
}
/**
* Get valid recipients.
* @return string
*/
public function get_recipient() {
$recipient = apply_filters( 'woocommerce_email_recipient_' . $this->id, $this->recipient, $this->object );
$recipients = array_map( 'trim', explode( ',', $recipient ) );
$recipients = array_filter( $recipients, 'is_email' );
return implode( ', ', $recipients );
}
/**
* Get email headers.
*
* @return string
*/
public function get_headers() {
$header = "Content-Type: " . $this->get_content_type() . "\r\n";
if ( 'new_order' === $this->id ) {
$header .= 'Reply-to: ' . $this->object->get_billing_first_name() . ' ' . $this->object->get_billing_last_name() . ' <' . $this->object->get_billing_email() . ">\r\n";
}
return apply_filters( 'woocommerce_email_headers', $header, $this->id, $this->object );
}
/**
* Get email attachments.
*
* @return string
*/
public function get_attachments() {
return apply_filters( 'woocommerce_email_attachments', array(), $this->id, $this->object );
}
/**
* get_type function.
*
* @return string
*/
public function get_email_type() {
return $this->email_type && class_exists( 'DOMDocument' ) ? $this->email_type : 'plain';
}
/**
* Get email content type.
*
* @return string
*/
public function get_content_type() {
switch ( $this->get_email_type() ) {
case 'html' :
return 'text/html';
case 'multipart' :
return 'multipart/alternative';
default :
return 'text/plain';
}
}
/**
* Return the email's title
* @return string
*/
public function get_title() {
return apply_filters( 'woocommerce_email_title', $this->title, $this );
}
/**
* Return the email's description
* @return string
*/
public function get_description() {
return apply_filters( 'woocommerce_email_description', $this->description, $this );
}
/**
* Proxy to parent's get_option and attempt to localize the result using gettext.
*
* @param string $key
* @param mixed $empty_value
* @return string
*/
public function get_option( $key, $empty_value = null ) {
$value = parent::get_option( $key, $empty_value );
return apply_filters( 'woocommerce_email_get_option', $value, $this, $value, $key, $empty_value );
}
/**
* Checks if this email is enabled and will be sent.
* @return bool
*/
public function is_enabled() {
return apply_filters( 'woocommerce_email_enabled_' . $this->id, 'yes' === $this->enabled, $this->object );
}
/**
* Checks if this email is manually sent
* @return bool
*/
public function is_manual() {
return $this->manual;
}
/**
* Checks if this email is customer focussed.
* @return bool
*/
public function is_customer_email() {
return $this->customer_email;
}
/**
* Get WordPress blog name.
*
* @return string
*/
public function get_blogname() {
return wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );
}
/**
* Get email content.
*
* @return string
*/
public function get_content() {
$this->sending = true;
if ( 'plain' === $this->get_email_type() ) {
$email_content = preg_replace( $this->plain_search, $this->plain_replace, strip_tags( $this->get_content_plain() ) );
} else {
$email_content = $this->get_content_html();
}
return wordwrap( $email_content, 70 );
}
/**
* Apply inline styles to dynamic content.
*
* @param string|null $content
* @return string
*/
public function style_inline( $content ) {
// make sure we only inline CSS for html emails
if ( in_array( $this->get_content_type(), array( 'text/html', 'multipart/alternative' ) ) && class_exists( 'DOMDocument' ) ) {
ob_start();
wc_get_template( 'emails/email-styles.php' );
$css = apply_filters( 'woocommerce_email_styles', ob_get_clean() );
// apply CSS styles inline for picky email clients
try {
$emogrifier = new Emogrifier( $content, $css );
$content = $emogrifier->emogrify();
} catch ( Exception $e ) {
$logger = wc_get_logger();
$logger->error( $e->getMessage(), array( 'source' => 'emogrifier' ) );
}
}
return $content;
}
/**
* Get the email content in plain text format.
* @return string
*/
public function get_content_plain() { return ''; }
/**
* Get the email content in HTML format.
* @return string
*/
public function get_content_html() { return ''; }
/**
* Get the from name for outgoing emails.
* @return string
*/
public function get_from_name() {
$from_name = apply_filters( 'woocommerce_email_from_name', get_option( 'woocommerce_email_from_name' ), $this );
return wp_specialchars_decode( esc_html( $from_name ), ENT_QUOTES );
}
/**
* Get the from address for outgoing emails.
* @return string
*/
public function get_from_address() {
$from_address = apply_filters( 'woocommerce_email_from_address', get_option( 'woocommerce_email_from_address' ), $this );
return sanitize_email( $from_address );
}
/**
* Send an email.
* @param string $to
* @param string $subject
* @param string $message
* @param string $headers
* @param string $attachments
* @return bool success
*/
public function send( $to, $subject, $message, $headers, $attachments ) {
add_filter( 'wp_mail_from', array( $this, 'get_from_address' ) );
add_filter( 'wp_mail_from_name', array( $this, 'get_from_name' ) );
add_filter( 'wp_mail_content_type', array( $this, 'get_content_type' ) );
$message = apply_filters( 'woocommerce_mail_content', $this->style_inline( $message ) );
$return = wp_mail( $to, $subject, $message, $headers, $attachments );
remove_filter( 'wp_mail_from', array( $this, 'get_from_address' ) );
remove_filter( 'wp_mail_from_name', array( $this, 'get_from_name' ) );
remove_filter( 'wp_mail_content_type', array( $this, 'get_content_type' ) );
return $return;
}
/**
* Initialise Settings Form Fields - these are generic email options most will use.
*/
public function init_form_fields() {
$this->form_fields = array(
'enabled' => array(
'title' => __( 'Enable/Disable', 'woocommerce' ),
'type' => 'checkbox',
'label' => __( 'Enable this email notification', 'woocommerce' ),
'default' => 'yes',
),
'subject' => array(
'title' => __( 'Email subject', 'woocommerce' ),
'type' => 'text',
/* translators: %s: default subject */
'description' => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->subject . '</code>' ),
'placeholder' => '',
'default' => '',
'desc_tip' => true,
),
'heading' => array(
'title' => __( 'Email heading', 'woocommerce' ),
'type' => 'text',
/* translators: %s: default heading */
'description' => sprintf( __( 'Defaults to %s', 'woocommerce' ), '<code>' . $this->heading . '</code>' ),
'placeholder' => '',
'default' => '',
'desc_tip' => true,
),
'email_type' => array(
'title' => __( 'Email type', 'woocommerce' ),
'type' => 'select',
'description' => __( 'Choose which format of email to send.', 'woocommerce' ),
'default' => 'html',
'class' => 'email_type wc-enhanced-select',
'options' => $this->get_email_type_options(),
'desc_tip' => true,
),
);
}
/**
* Email type options.
* @return array
*/
public function get_email_type_options() {
$types = array( 'plain' => __( 'Plain text', 'woocommerce' ) );
if ( class_exists( 'DOMDocument' ) ) {
$types['html'] = __( 'HTML', 'woocommerce' );
$types['multipart'] = __( 'Multipart', 'woocommerce' );
}
return $types;
}
/**
* Admin Panel Options Processing.
*/
public function process_admin_options() {
// Save regular options
parent::process_admin_options();
$post_data = $this->get_post_data();
// Save templates
if ( isset( $post_data['template_html_code'] ) ) {
$this->save_template( $post_data['template_html_code'], $this->template_html );
}
if ( isset( $post_data['template_plain_code'] ) ) {
$this->save_template( $post_data['template_plain_code'], $this->template_plain );
}
}
/**
* Get template.
*
* @param string $type
* @return string
*/
public function get_template( $type ) {
$type = basename( $type );
if ( 'template_html' === $type ) {
return $this->template_html;
} elseif ( 'template_plain' === $type ) {
return $this->template_plain;
}
return '';
}
/**
* Save the email templates.
*
* @since 2.4.0
* @param string $template_code
* @param string $template_path
*/
protected function save_template( $template_code, $template_path ) {
if ( current_user_can( 'edit_themes' ) && ! empty( $template_code ) && ! empty( $template_path ) ) {
$saved = false;
$file = get_stylesheet_directory() . '/woocommerce/' . $template_path;
$code = wp_unslash( $template_code );
if ( is_writeable( $file ) ) {
$f = fopen( $file, 'w+' );
if ( false !== $f ) {
fwrite( $f, $code );
fclose( $f );
$saved = true;
}
}
if ( ! $saved ) {
$redirect = add_query_arg( 'wc_error', urlencode( __( 'Could not write to template file.', 'woocommerce' ) ) );
wp_safe_redirect( $redirect );
exit;
}
}
}
/**
* Get the template file in the current theme.
*
* @param string $template
*
* @return string
*/
public function get_theme_template_file( $template ) {
return get_stylesheet_directory() . '/' . apply_filters( 'woocommerce_template_directory', 'woocommerce', $template ) . '/' . $template;
}
/**
* Move template action.
*
* @param string $template_type
*/
protected function move_template_action( $template_type ) {
if ( $template = $this->get_template( $template_type ) ) {
if ( ! empty( $template ) ) {
$theme_file = $this->get_theme_template_file( $template );
if ( wp_mkdir_p( dirname( $theme_file ) ) && ! file_exists( $theme_file ) ) {
// Locate template file
$core_file = $this->template_base . $template;
$template_file = apply_filters( 'woocommerce_locate_core_template', $core_file, $template, $this->template_base, $this->id );
// Copy template file
copy( $template_file, $theme_file );
/**
* woocommerce_copy_email_template action hook.
*
* @param string $template_type The copied template type
* @param string $email The email object
*/
do_action( 'woocommerce_copy_email_template', $template_type, $this );
echo '<div class="updated"><p>' . __( 'Template file copied to theme.', 'woocommerce' ) . '</p></div>';
}
}
}
}
/**
* Delete template action.
*
* @param string $template_type
*/
protected function delete_template_action( $template_type ) {
if ( $template = $this->get_template( $template_type ) ) {
if ( ! empty( $template ) ) {
$theme_file = $this->get_theme_template_file( $template );
if ( file_exists( $theme_file ) ) {
unlink( $theme_file );
/**
* woocommerce_delete_email_template action hook.
*
* @param string $template The deleted template type
* @param string $email The email object
*/
do_action( 'woocommerce_delete_email_template', $template_type, $this );
echo '<div class="updated"><p>' . __( 'Template file deleted from theme.', 'woocommerce' ) . '</p></div>';
}
}
}
}
/**
* Admin actions.
*/
protected function admin_actions() {
// Handle any actions
if (
( ! empty( $this->template_html ) || ! empty( $this->template_plain ) )
&& ( ! empty( $_GET['move_template'] ) || ! empty( $_GET['delete_template'] ) )
&& 'GET' === $_SERVER['REQUEST_METHOD']
) {
if ( empty( $_GET['_wc_email_nonce'] ) || ! wp_verify_nonce( $_GET['_wc_email_nonce'], 'woocommerce_email_template_nonce' ) ) {
wp_die( __( 'Action failed. Please refresh the page and retry.', 'woocommerce' ) );
}
if ( ! current_user_can( 'edit_themes' ) ) {
wp_die( __( 'Cheatin&#8217; huh?', 'woocommerce' ) );
}
if ( ! empty( $_GET['move_template'] ) ) {
$this->move_template_action( $_GET['move_template'] );
}
if ( ! empty( $_GET['delete_template'] ) ) {
$this->delete_template_action( $_GET['delete_template'] );
}
}
}
/**
* Admin Options.
*
* Setup the email settings screen.
* Override this in your email.
*
* @since 1.0.0
*/
public function admin_options() {
// Do admin actions.
$this->admin_actions();
?>
<h2><?php echo esc_html( $this->get_title() ); ?> <?php wc_back_link( __( 'Return to emails', 'woocommerce' ), admin_url( 'admin.php?page=wc-settings&tab=email' ) ); ?></h2>
<?php echo wpautop( wp_kses_post( $this->get_description() ) ); ?>
<?php
/**
* woocommerce_email_settings_before action hook.
* @param string $email The email object
*/
do_action( 'woocommerce_email_settings_before', $this );
?>
<table class="form-table">
<?php $this->generate_settings_html(); ?>
</table>
<?php
/**
* woocommerce_email_settings_after action hook.
* @param string $email The email object
*/
do_action( 'woocommerce_email_settings_after', $this );
?>
<?php if ( current_user_can( 'edit_themes' ) && ( ! empty( $this->template_html ) || ! empty( $this->template_plain ) ) ) { ?>
<div id="template">
<?php
$templates = array(
'template_html' => __( 'HTML template', 'woocommerce' ),
'template_plain' => __( 'Plain text template', 'woocommerce' ),
);
foreach ( $templates as $template_type => $title ) :
$template = $this->get_template( $template_type );
if ( empty( $template ) ) {
continue;
}
$local_file = $this->get_theme_template_file( $template );
$core_file = $this->template_base . $template;
$template_file = apply_filters( 'woocommerce_locate_core_template', $core_file, $template, $this->template_base, $this->id );
$template_dir = apply_filters( 'woocommerce_template_directory', 'woocommerce', $template );
?>
<div class="template <?php echo $template_type; ?>">
<h4><?php echo wp_kses_post( $title ); ?></h4>
<?php if ( file_exists( $local_file ) ) { ?>
<p>
<a href="#" class="button toggle_editor"></a>
<?php if ( is_writable( $local_file ) ) : ?>
<a href="<?php echo esc_url( wp_nonce_url( remove_query_arg( array( 'move_template', 'saved' ), add_query_arg( 'delete_template', $template_type ) ), 'woocommerce_email_template_nonce', '_wc_email_nonce' ) ); ?>" class="delete_template button"><?php _e( 'Delete template file', 'woocommerce' ); ?></a>
<?php endif; ?>
<?php printf( __( 'This template has been overridden by your theme and can be found in: %s.', 'woocommerce' ), '<code>' . trailingslashit( basename( get_stylesheet_directory() ) ) . $template_dir . '/' . $template . '</code>' ); ?>
</p>
<div class="editor" style="display:none">
<textarea class="code" cols="25" rows="20" <?php if ( ! is_writable( $local_file ) ) : ?>readonly="readonly" disabled="disabled"<?php else : ?>data-name="<?php echo $template_type . '_code'; ?>"<?php endif; ?>><?php echo file_get_contents( $local_file ); ?></textarea>
</div>
<?php } elseif ( file_exists( $template_file ) ) { ?>
<p>
<a href="#" class="button toggle_editor"></a>
<?php if ( ( is_dir( get_stylesheet_directory() . '/' . $template_dir . '/emails/' ) && is_writable( get_stylesheet_directory() . '/' . $template_dir . '/emails/' ) ) || is_writable( get_stylesheet_directory() ) ) { ?>
<a href="<?php echo esc_url( wp_nonce_url( remove_query_arg( array( 'delete_template', 'saved' ), add_query_arg( 'move_template', $template_type ) ), 'woocommerce_email_template_nonce', '_wc_email_nonce' ) ); ?>" class="button"><?php _e( 'Copy file to theme', 'woocommerce' ); ?></a>
<?php } ?>
<?php printf( __( 'To override and edit this email template copy %1$s to your theme folder: %2$s.', 'woocommerce' ), '<code>' . plugin_basename( $template_file ) . '</code>', '<code>' . trailingslashit( basename( get_stylesheet_directory() ) ) . $template_dir . '/' . $template . '</code>' ); ?>
</p>
<div class="editor" style="display:none">
<textarea class="code" readonly="readonly" disabled="disabled" cols="25" rows="20"><?php echo file_get_contents( $template_file ); ?></textarea>
</div>
<?php } else { ?>
<p><?php _e( 'File was not found.', 'woocommerce' ); ?></p>
<?php } ?>
</div>
<?php
endforeach;
?>
</div>
<?php
wc_enqueue_js( "
jQuery( 'select.email_type' ).change( function() {
var val = jQuery( this ).val();
jQuery( '.template_plain, .template_html' ).show();
if ( val != 'multipart' && val != 'html' ) {
jQuery('.template_html').hide();
}
if ( val != 'multipart' && val != 'plain' ) {
jQuery('.template_plain').hide();
}
}).change();
var view = '" . esc_js( __( 'View template', 'woocommerce' ) ) . "';
var hide = '" . esc_js( __( 'Hide template', 'woocommerce' ) ) . "';
jQuery( 'a.toggle_editor' ).text( view ).toggle( function() {
jQuery( this ).text( hide ).closest(' .template' ).find( '.editor' ).slideToggle();
return false;
}, function() {
jQuery( this ).text( view ).closest( '.template' ).find( '.editor' ).slideToggle();
return false;
} );
jQuery( 'a.delete_template' ).click( function() {
if ( window.confirm('" . esc_js( __( 'Are you sure you want to delete this template file?', 'woocommerce' ) ) . "') ) {
return true;
}
return false;
});
jQuery( '.editor textarea' ).change( function() {
var name = jQuery( this ).attr( 'data-name' );
if ( name ) {
jQuery( this ).attr( 'name', name );
}
});
" );
}
}
}