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<?php
/**
* @version 1.1
* @package General Emails API
* @category General Emails API Fields for Settings page and Functions for Sending emails.
* @author wpdevelop
*
* @web-site http://wpbookingcalendar.com/
* @email info@wpbookingcalendar.com
* @modified 2016-05-12, 2015-10-06
*/
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
// Email Settings API - Saving different options
abstract class WPBC_Emails_API extends WPBC_Settings_API {
public $sending;
public $replace = array();
/** Email Settings API Constructor
* During creation, system try to load values from DB, if exist.
*
* @param type $id - "Pure Email Template name
*/
public function __construct( $id, $init_fields_values = array()) {
$options = array(
'db_prefix_option' => 'booking_email_'
, 'db_saving_type' => 'togather' // { 'togather' (Default), 'separate', 'separate_prefix' }
);
// Email template saved as:
// ( "booking_email_" . $id ) >>> "booking_email_new_admin"
parent::__construct( $id, $options, $init_fields_values ); // Define ID of Setting page and options
add_filter( 'phpmailer_init', array( $this, 'process_multipart' ) ); // For multipart messages
add_action( 'wp_mail_failed', array($this, 'email_error_parse') ); // Parse any errors during sending emails.
}
/** This function must be overriden - Initialise Settings Form Fields
public function init_settings_fields() {
$this->fields = array();
$this->fields['enabled'] = array(
'type' => 'checkbox'
, 'default' => 'On'
, 'title' => __('Enable / Disable', 'booking')
, 'label' => __('Enable this email notification', 'booking')
, 'description' => ''
, 'group' => 'general'
);
// ...
}
/**/
// <editor-fold defaultstate="collapsed" desc=" Suport functions " >
/** List of preg* regular expression patterns to search for replace in plain emails.
* More: https://raw.github.com/ushahidi/wp-silcc/master/class.html2text.inc
*/
private function get_plain_search_array() {
return array(
"/\r/", // Non-legal carriage return
'/&(nbsp|#160);/i', // Non-breaking space
'/&(quot|rdquo|ldquo|#8220|#8221|#147|#148);/i', // Double quotes
'/&(apos|rsquo|lsquo|#8216|#8217);/i', // Single quotes
'/>/i', // Greater-than
'/</i', // Less-than
'/&/i', // Ampersand
'/&/i', // Ampersand
'/&/i', // Ampersand
'/&(copy|#169);/i', // Copyright
'/&(trade|#8482|#153);/i', // Trademark
'/&(reg|#174);/i', // Registered
'/&(mdash|#151|#8212);/i', // mdash
'/&(ndash|minus|#8211|#8722);/i', // ndash
'/&(bull|#149|#8226);/i', // Bullet
'/&(pound|#163);/i', // Pound sign
'/&(euro|#8364);/i', // Euro sign
'/$/', // Dollar sign
'/&[^&;]+;/i', // Unknown/unhandled entities
'/[ ]{2,}/' // Runs of spaces, post-handling
);
}
/** List of symbols "for Replace To" */
private function get_plain_replace_array() {
return 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
);
}
/** Esacpe and replace any HTML entities
*
* @param type $string
* @return string
*/
public function esc_to_plain_text( $string ) {
// //Replace <a href="http://server.com">Link</a> to Link( http://server.com )
// $pattern = "/<a(.*)+href=[\"|']+([^\"']+)(?=(\"|'))[^>]*>(.*)<\/a>/" ; //"/(?<=href=(\"|'))[^\"']+(?=(\"|'))/i";
// $newurl = "$4 ($2)";
// $string = preg_replace($pattern,$newurl,$string);
$newstring = preg_replace( $this->get_plain_search_array(), $this->get_plain_replace_array(), strip_tags( $string ) );
return $newstring;
}
/** Set array for replacing shortcodes in Email Content and Subject
*
* @param array $replace - if this parameter skipped, then array reseted to empty array
*/
function set_replace( $replace = array() ) {
$this->replace = $replace;
}
/** Replace shortcodes in givven string. Usually its Email Content and Subject
*
* @param string $subject
*/
public function replace_shortcodes( $subject ) {
$defaults = array(
'ip' => apply_bk_filter( 'wpbc_get_user_ip' )
, 'blogname' => wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES )
, 'siteurl' => get_site_url()
);
$replace = wp_parse_args( $this->replace, $defaults );
foreach ( $replace as $replace_shortcode => $replace_value ) {
$subject = str_replace( array( '[' . $replace_shortcode . ']'
, '{' . $replace_shortcode . '}' )
, $replace_value
, $subject );
}
return $subject;
}
// </editor-fold>
// <editor-fold defaultstate="collapsed" desc=" Pure Email functions " >
/** For MultiPart email define plain text - AltBody
*
* Also additionaly fix Sender - its have to be same as From
*
* @param PHPMailer $mailer
* @return PHPMailer
*/
public function process_multipart( $mailer ) {
//if ( $this->sending && $this->get_email_content_type() == 'multipart' ) {
if ( $this->sending ) {
if ( $this->get_email_content_type() == 'multipart' )
$mailer->AltBody = wordwrap( $this->esc_to_plain_text( $this->replace_shortcodes( $this->get_content_plain() ) ) );
$mailer->Sender = $mailer->From;
//$this->sending = false; // If we set it to false, then we can not trigger for any Mail errors in this CLASS
}
return $mailer;
}
/** Get type of Email: 'plain' | 'html' | 'multipart'
*
* @return string
*/
public function get_email_content_type() {
return $this->fields_values['email_content_type'] && class_exists( 'DOMDocument' ) ? $this->fields_values['email_content_type'] : 'plain';
}
/** Get Email Content Type: 'text/plain' | 'text/html' | 'multipart/alternative'
*
* @return string
*/
public function get_content_type() {
switch ( $this->get_email_content_type() ) {
case 'html' :
return 'text/html';
case 'multipart' :
return 'multipart/alternative';
default :
return 'text/plain';
}
}
/** Define Email Headers. For exmaple: "Conte type:" 'text/plain' | 'text/html' | 'multipart/alternative' or "From": Name <email@server.com>
*
* @return string
*/
public function get_headers( $additional_params = array() ) {
$mail_headers = '';
$from_address = $this->get_from__email_address();
if ( ! empty( $from_address ) ) {
$mail_headers .= 'From: ' . $this->get_from__name() . ' <' . $from_address . '> ' . "\r\n" ;
} else {
/* If we don't have an email from the input headers default to wordpress@$sitename
* Some hosts will block outgoing mail from this address if it doesn't exist but
* there's no easy alternative. Defaulting to admin_email might appear to be another
* option but some hosts may refuse to relay mail from an unknown domain. See
* https://core.trac.wordpress.org/ticket/5007.
*/
}
$mail_headers .= 'Content-Type: ' . $this->get_content_type() . "\r\n" ;
$mail_headers = apply_filters( 'wpbc_email_api_get_headers_after', $mail_headers, $this->id, $this->fields_values , $this->replace, $additional_params );
return $mail_headers;
}
/** Get Content of Email
*
* @return string
*/
public function get_content() {
if ( $this->get_email_content_type() == 'plain' ) {
$email_content = $this->esc_to_plain_text( $this->replace_shortcodes( $this->get_content_plain() ) );
} else {
$email_content = $this->replace_shortcodes( $this->get_content_html() );
}
$email_content = apply_filters( 'wpbc_email_api_get_content_after' , $email_content, $this->id, $this->get_email_content_type() );
// Remove all shortcodes, which is not replaced early.
$email_content = preg_replace ('/[\[\{][a-zA-Z0-9.,_-]{0,}[\]\}]/', '', $email_content);
return wordwrap( $email_content, 100 );
}
/** Get Email Content as Text (from Plain Text template)
*
* @return string
*/
function get_content_plain() {
//require_once( dirname(__FILE__) . '/emails_tpl/standard-text-tpl.php' );
//require_once( dirname(__FILE__) . '/emails_tpl/plain-text-tpl.php' );
if ( isset( $this->fields_values['template_file'] ) ) {
$email_tpl_name = $this->fields_values['template_file'];
} else {
$email_tpl_name = 'plain';
}
if ( file_exists( dirname(__FILE__) . '/emails_tpl/'. $email_tpl_name .'-text-tpl.php' ) )
require_once( dirname(__FILE__) . '/emails_tpl/'. $email_tpl_name .'-text-tpl.php' );
else
require_once( dirname(__FILE__) . '/emails_tpl/plain-text-tpl.php' );
$fields_values = $this->fields_values;
$fields_values = apply_filters( 'wpbc_email_api_get_content_before' , $fields_values, $this->id , 'plain' ); //Ability to parse 'content', 'header_content', 'footer_content' for different languges, etc ....
if ( function_exists( 'wpbc_email_template_' . $email_tpl_name . '_text' ) )
$plain_email = call_user_func_array( 'wpbc_email_template_' . $email_tpl_name . '_text' , array( $fields_values ) );
else
$plain_email = wpbc_email_template_text( $fields_values );
// Replace <p> | <br> to \n
$plain_email = preg_replace( '/<(br|p)[\t\s]*[\/]?>/i', "\n", $plain_email );
// $plain_email = str_replace( array('<br/>', '<br>'), "\n", $plain_email );
return $plain_email;
}
/** Get Email Content as HTML (from HTML template)
*
* @return type
*/
function get_content_html() {
// Load specific Email Template: ///////////////////////////////////
if ( isset( $this->fields_values['template_file'] ) ) {
$email_tpl_name = $this->fields_values['template_file'];
} else {
$email_tpl_name = 'plain';
}
//require_once( dirname(__FILE__) . '/emails_tpl/standard-html-tpl.php' );
//require_once( dirname(__FILE__) . '/emails_tpl/plain-html-tpl.php' );
if ( file_exists( dirname(__FILE__) . '/emails_tpl/'. $email_tpl_name .'-html-tpl.php' ) )
require_once( dirname(__FILE__) . '/emails_tpl/'. $email_tpl_name .'-html-tpl.php' );
else
require_once( dirname(__FILE__) . '/emails_tpl/plain-html-tpl.php' );
////////////////////////////////////////////////////////////////////
$fields_values = $this->fields_values;
$fields_values = apply_filters( 'wpbc_email_api_get_content_before' , $fields_values, $this->id , 'html' ); //Ability to parse 'content', 'header_content', 'footer_content' for different languges, etc ....
if ( function_exists( 'wpbc_email_template_' . $email_tpl_name . '_html' ) )
$html_email = call_user_func_array( 'wpbc_email_template_' . $email_tpl_name . '_html' , array( $fields_values ) );
else
$html_email = wpbc_email_template_html( $fields_values );
return $html_email;
}
/** Get escaped Email Subject
*
* @return string
*/
public function get_subject() {
$subject = $this->fields_values['subject'];
$subject = apply_filters( 'wpbc_email_api_get_subject_before' , $subject, $this->id );
$subject = $this->esc_to_plain_text( $this->replace_shortcodes( $subject ) );
$subject = apply_filters( 'wpbc_email_api_get_subject_after' , $subject, $this->id );
return $subject;
}
/** Get escapeed Name from any not supporting characters
*
* @return string
*/
public function get_from__name() {
return wp_specialchars_decode( esc_html( stripslashes( $this->fields_values['from_name'] ) ), ENT_QUOTES );
}
/** Get sanitized Email address
*
* @return type
*/
public function get_from__email_address() {
return sanitize_email( $this->fields_values['from'] );
}
/** For future support, right now does not support
*
* @return empty string
*/
public function get_attachments() {
return '';
}
/** Check email and format it
*
* @param string $emails
* @return string
*/
public function validate_emails( $emails ) {
$emails = str_replace(';', ',', $emails);
if ( !is_array( $emails ) )
$emails = explode( ',', $emails );
$emails_list = array();
foreach ( (array) $emails as $recipient ) {
// Break $recipient into name and address parts if in the format "Foo <bar@baz.com>"
$recipient_name = '';
if( preg_match( '/(.*)<(.+)>/', $recipient, $matches ) ) {
if ( count( $matches ) == 3 ) {
$recipient_name = $matches[1];
$recipient = $matches[2];
}
} else {
// Check about correct format of email
if( preg_match( '/([\w\.\-_]+)?\w+@[\w-_]+(\.\w+){1,}/im', $recipient, $matches ) ) {
$recipient = $matches[0];
}
}
//$recipient_name = str_replace('"', '', $recipient_name);
$recipient_name = trim( wp_specialchars_decode( esc_html( stripslashes( $recipient_name ) ), ENT_QUOTES ) );
$emails_list[] = ( empty( $recipient_name ) ? '' : $recipient_name . ' ' )
. '<' . sanitize_email( $recipient ) . '>';
}
$emails_list = implode( ',', $emails_list );
return $emails_list;
}
/**
* Make Email Sending by using wp_mail standard function.
*
* @param string $to - Email
* @param array $replace - accociated array of values to replace in email Body and Subject. Exmaple: array( 'name' => 'Jo', 'secondname' => 'Smith' )
* @return boolean Sent or Failed to send.
*/
public function send( $to = '', $replace = array() ) {
$return = false;
// if ( empty( $to ) )
// return $return;
$this->sending = true;
$this->set_replace( $replace );
$to = $this->validate_emails( $to );
$subject = $this->get_subject();
$message = $this->get_content();
$headers = $this->get_headers();
$attachments = $this->get_attachments();
//debuge('In email', htmlentities($to), $subject, htmlentities($message), $headers, $attachments) ;
$is_send_email = true;
$is_send_email = apply_filters( 'wpbc_email_api_is_allow_send', $is_send_email, $this->id, $this->fields_values );
if ( $is_send_email )
$return = wp_mail( $to, $subject, $message, $headers, $attachments );
$this->sending = false;
// Send Copy to admin email
if (
( isset( $this->fields_values['copy_to_admin'] ) )
&& ( $this->fields_values['copy_to_admin'] == 'On' )
){
$this->sending = true;
$subject = __('Email copy to', 'booking') . ' ' . str_replace( array( '<', '>' ), '', $to) . ' - ' . $subject;
$headers = $this->get_headers( array( 'reply' => $to ) );
$to = $this->validate_emails( $this->get_from__name() . ' <' . $this->get_from__email_address() . '> ' );
$is_send_email = apply_filters( 'wpbc_email_api_is_allow_send_copy', $is_send_email, $this->id, $this->fields_values );
if ( $is_send_email )
$return_copy = wp_mail( $to, $subject, $message, $headers, $attachments );
$this->sending = false;
}
$this->set_replace(); // Reset replace parameter
return $return;
}
// </editor-fold>
/** Show possible erros during sending emails.
*
* @param type $wp_error_object - new WP_Error( $e->getCode(), $e->getMessage(), $mail_error_data )
*/
public function email_error_parse( $wp_error_object ) {
//debuge( $wp_error_object );
if ( $this->sending ) { // Check if this error generated for email relative to this class.
$error_description_array = array();
if ( isset( $wp_error_object->errors ) )
foreach ( $wp_error_object->errors as $key_error => $error_description ) {
$error_description_array[] = implode(' ', $error_description );
}
if ( ! empty( $error_description_array ) ) {
$error_description = implode(' ', $error_description_array ) ;
do_action('wpbc_email_sending_error', $wp_error_object, $error_description );
} else {
do_action('wpbc_email_sending_error', $wp_error_object, '' );
}
}
}
}