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

836 lines
22 KiB
PHP

<?php
/**
* Email Class
*
* WooCommerce Email Class which is extended by specific email template classes to add emails to WooCommerce
*
* @class WC_Email
* @version 2.0.0
* @package WooCommerce/Classes/Emails
* @author WooThemes
* @extends WC_Settings_API
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
if ( class_exists( 'WC_Email' ) ) {
return;
}
/**
* WC_Email
*/
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
*/
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
*/
public $object;
/**
* Strings to find in subjects/headings.
*
* @var array
*/
public $find;
/**
* Strings to replace in subjects/headings.
*
* @var array
*/
public $replace;
/**
* 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;
/**
* List of preg* regular expression patterns to search for,
* used in conjunction with $replace.
* https://raw.github.com/ushahidi/wp-silcc/master/class.html2text.inc
*
* @var array $search
* @see $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 $replace
* @see $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_filter( 'phpmailer_init', array( $this, 'handle_multipart' ) );
}
/**
* handle_multipart function.
*
* @param PHPMailer $mailer
* @return PHPMailer
*/
public function handle_multipart( $mailer ) {
if ( $this->sending && $this->get_email_type() == 'multipart' ) {
$mailer->AltBody = wordwrap( preg_replace( $this->plain_search, $this->plain_replace, strip_tags( $this->get_content_plain() ) ) );
//$mailer->AltBody = wordwrap( html_entity_decode( strip_tags( $this->get_content_plain() ) ), 70 );
$this->sending = false;
}
return $mailer;
}
/**
* format_string function.
*
* @param mixed $string
* @return string
*/
public function format_string( $string ) {
return str_replace( $this->find, $this->replace, $string );
}
/**
* get_subject function.
*
* @return string
*/
public function get_subject() {
return apply_filters( 'woocommerce_email_subject_' . $this->id, $this->format_string( $this->subject ), $this->object );
}
/**
* get_heading function.
*
* @return string
*/
public function get_heading() {
return apply_filters( 'woocommerce_email_heading_' . $this->id, $this->format_string( $this->heading ), $this->object );
}
/**
* get_recipient function.
*
* @return string
*/
public function get_recipient() {
return apply_filters( 'woocommerce_email_recipient_' . $this->id, $this->recipient, $this->object );
}
/**
* get_headers function.
*
* @return string
*/
public function get_headers() {
return apply_filters( 'woocommerce_email_headers', "Content-Type: " . $this->get_content_type() . "\r\n", $this->id, $this->object );
}
/**
* get_attachments function.
*
* @return string|array
*/
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_content_type function.
*
* @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';
}
}
/**
* 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() {
$enabled = $this->enabled == 'yes' ? true : false;
return apply_filters( 'woocommerce_email_enabled_' . $this->id, $enabled, $this->object );
}
/**
* get_blogname function.
*
* @return string
*/
public function get_blogname() {
return wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );
}
/**
* get_content function.
*
* @return string
*/
public function get_content() {
$this->sending = true;
if ( $this->get_email_type() == 'plain' ) {
$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' ) ) {
// get CSS styles
ob_start();
wc_get_template( 'emails/email-styles.php' );
$css = apply_filters( 'woocommerce_email_styles', ob_get_clean() );
try {
// apply CSS styles inline for picky email clients
$emogrifier = new Emogrifier( $content, $css );
$content = $emogrifier->emogrify();
} catch ( Exception $e ) {
$logger = new WC_Logger();
$logger->add( 'emogrifier', $e->getMessage() );
}
}
return $content;
}
/**
* get_content_plain function.
*
* @return string
*/
public function get_content_plain() {}
/**
* get_content_html function.
*
* @return string
*/
public function get_content_html() {}
/**
* Get from name for email.
*
* @return string
*/
public function get_from_name() {
return wp_specialchars_decode( esc_html( get_option( 'woocommerce_email_from_name' ) ), ENT_QUOTES );
}
/**
* Get from email address.
*
* @return string
*/
public function get_from_address() {
return sanitize_email( get_option( 'woocommerce_email_from_address' ) );
}
/**
* Send the email.
*
* @param string $to
* @param string $subject
* @param string $message
* @param string $headers
* @param string $attachments
* @return bool
*/
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',
'description' => sprintf( __( 'Defaults to <code>%s</code>', 'woocommerce' ), $this->subject ),
'placeholder' => '',
'default' => ''
),
'heading' => array(
'title' => __( 'Email heading', 'woocommerce' ),
'type' => 'text',
'description' => sprintf( __( 'Defaults to <code>%s</code>', 'woocommerce' ), $this->heading ),
'placeholder' => '',
'default' => ''
),
'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()
)
);
}
/**
* 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
* - Saves the options to the DB
*
* @since 1.0.0
* @return boolean|null
*/
public function process_admin_options() {
// Save regular options
parent::process_admin_options();
// Save templates
$this->save_template( $_POST['template_html_code'], $this->template_html );
$this->save_template( $_POST['template_plain_code'], $this->template_plain );
}
/**
* Get template.
*
* @param string $type
*
* @return string
*/
public function get_template( $type ) {
$type = esc_attr( basename( $type ) );
if ( 'template_html' == $type ) {
return $this->template_html;
} else if ( 'template_plain' == $type ) {
return $this->template_plain;
}
return '';
}
/**
* Save the email templates
*
* @param string $template_code
* @param string $template_path
* @return void
*/
protected function save_template( $template_code, $template_path ) {
if ( ! empty( $template_code ) && ! empty( $template_path ) ) {
$saved = false;
$file = get_stylesheet_directory() . '/woocommerce/' . $template_path;
$code = stripslashes( $template_code );
if ( is_writeable( $file ) ) {
$f = fopen( $file, 'w+' );
if ( $f !== false ) {
fwrite( $f, $code );
fclose( $f );
$saved = true;
}
}
if ( ! $saved ) {
$redirect = add_query_arg( 'wc_error', urlencode( __( 'Could not write to template file.', 'woocommerce' ) ) );
wp_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 );
// 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 ) ) {
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();
?>
<h3><?php echo ( ! empty( $this->title ) ) ? $this->title : __( 'Settings','woocommerce' ) ; ?></h3>
<?php echo ( ! empty( $this->description ) ) ? wpautop( $this->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 ( ! 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 );
$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( remove_query_arg( array( 'move_template', 'saved' ), add_query_arg( 'delete_template', $template_type ) ) ); ?>" 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: <code>%s</code>.', 'woocommerce' ), 'yourtheme/' . $template_dir . '/' . $template ); ?>
</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( remove_query_arg( array( 'delete_template', 'saved' ), add_query_arg( 'move_template', $template_type ) ) ); ?>" class="button"><?php _e( 'Copy file to theme', 'woocommerce' ); ?></a>
<?php } ?>
<?php printf( __( 'To override and edit this email template copy <code>%s</code> to your theme folder: <code>%s</code>.', 'woocommerce' ), plugin_basename( $template_file ) , 'yourtheme/' . $template_dir . '/' . $template ); ?>
</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(){
var answer = confirm('" . esc_js( __( 'Are you sure you want to delete this template file?', 'woocommerce' ) ) . "');
if (answer)
return true;
return false;
});
jQuery('.editor textarea').change(function(){
var name = jQuery(this).attr( 'data-name' );
if ( name )
jQuery(this).attr( 'name', name );
});
" );
}
}
}