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<?php
/**
* Emails
*
* This class handles all emails sent through Give
*
* @package Give
* @subpackage Classes/Emails
* @copyright Copyright (c) 2016, GiveWP
* @license https://opensource.org/licenses/gpl-license GNU Public License
* @since 1.0
*/
// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Give_Emails Class.
*
* @property $from_address
* @property $from_name
* @property $content_type
* @property $headers
* @property $html
* @property $template
* @property $heading
*
* @since 1.0
*/
class Give_Emails {
/**
* Holds the from address.
*
* @since 1.0
*/
private $from_address;
/**
* Holds the from name.
*
* @since 1.0
*/
private $from_name;
/**
* Holds the email content type.
*
* @since 1.0
*/
private $content_type;
/**
* Holds the email headers.
*
* @since 1.0
*/
private $headers;
/**
* Whether to send email in HTML.
*
* @since 1.0
*/
private $html = true;
/**
* The email template to use.
*
* @since 1.0
*/
private $template;
/**
* The header text for the email.
*
* @since 1.0
*/
private $heading = '';
/**
* Email template tags argument.
* This helps to decode email template tags,
*
* @since 1.0
*/
public $tag_args = array();
/**
* Form ID
*
* @since 1.0
*/
public $form_id = 0;
/**
* Get things going.
*
* @since 1.0
*/
public function __construct() {
if ( 'none' === $this->get_template() ) {
$this->html = false;
}
add_action( 'give_email_send_before', array( $this, 'send_before' ) );
add_action( 'give_email_send_after', array( $this, 'send_after' ) );
}
/**
* Set a property.
*
* @since 1.0
*
* @param $key
* @param $value
*/
public function __set( $key, $value ) {
$this->$key = $value;
}
/**
* Get the email from name.
*
* @since 1.0
*/
public function get_from_name() {
if ( ! $this->from_name ) {
$this->from_name = give_get_option( 'from_name', wp_specialchars_decode( get_bloginfo( 'name' ), ENT_QUOTES ) );
}
return apply_filters( 'give_email_from_name', wp_specialchars_decode( $this->from_name ), $this );
}
/**
* Get the email from address.
*
* @since 1.0
*/
public function get_from_address() {
if ( ! $this->from_address ) {
$this->from_address = give_get_option( 'from_email', get_option( 'admin_email' ) );
}
return apply_filters( 'give_email_from_address', $this->from_address, $this );
}
/**
* Get the email content type.
*
* @since 1.0
*/
public function get_content_type() {
if ( ! $this->content_type ) {
$this->content_type = $this->html
? apply_filters( 'give_email_default_content_type', 'text/html', $this )
: 'text/plain';
}
return apply_filters( 'give_email_content_type', $this->content_type, $this );
}
/**
* Get the email headers.
*
* @since 1.0
*/
public function get_headers() {
if ( ! $this->headers ) {
$this->headers = "From: {$this->get_from_name()} <{$this->get_from_address()}>\r\n";
$this->headers .= "Reply-To: {$this->get_from_address()}\r\n";
$this->headers .= "Content-Type: {$this->get_content_type()}; charset=utf-8\r\n";
}
return apply_filters( 'give_email_headers', $this->headers, $this );
}
/**
* Retrieve email templates.
*
* @since 1.0
*/
public function get_templates() {
$templates = array(
'default' => esc_html__( 'Default Template', 'give' ),
'none' => esc_html__( 'No template, plain text only', 'give' ),
);
return apply_filters( 'give_email_templates', $templates );
}
/**
* Get the enabled email template.
*
* @since 1.0
*/
public function get_template() {
if ( ! $this->template ) {
$this->template = give_get_option( 'email_template', 'default' );
}
return apply_filters( 'give_email_template', $this->template );
}
/**
* Get the header text for the email.
*
* @since 1.0
*/
public function get_heading() {
return apply_filters( 'give_email_heading', $this->heading );
}
/**
* Parse email template tags.
*
* @param $content
*
* @return mixed
*/
public function parse_tags( $content ) {
return $content;
}
/**
* Build the final email.
*
* @since 1.0
*
* @param $message
*
* @return string
*/
public function build_email( $message ) {
if ( false === $this->html ) {
// Added Replacement check to simply behaviour of anchor tags.
$pattern = '/<a.+?href\=(?:["|\'])(.+?)(?:["|\']).*?>(.+?)<\/a>/i';
$message = preg_replace_callback(
$pattern,
function ( $return ) {
if ( $return[1] !== $return[2] ) {
return "{$return[2]} ( {$return[1]} )";
}
return trailingslashit( $return[1] );
},
$message
);
return apply_filters( 'give_email_message', wp_strip_all_tags( $message ), $this );
}
$message = $this->text_to_html( $message );
$template = $this->get_template();
ob_start();
give_get_template_part( 'emails/header', $template, true );
/**
* Fires in the email head.
*
* @since 1.0
*
* @param Give_Emails $this The email object.
*/
do_action( 'give_email_header', $this );
if ( has_action( 'give_email_template_' . $template ) ) {
/**
* Fires in a specific email template.
*
* @since 1.0
*/
do_action( "give_email_template_{$template}" );
} else {
give_get_template_part( 'emails/body', $template, true );
}
/**
* Fires in the email body.
*
* @since 1.0
*
* @param Give_Emails $this The email object.
*/
do_action( 'give_email_body', $this );
give_get_template_part( 'emails/footer', $template, true );
/**
* Fires in the email footer.
*
* @since 1.0
*
* @param Give_Emails $this The email object.
*/
do_action( 'give_email_footer', $this );
$body = ob_get_clean();
// Email tag.
$message = str_replace( '{email}', $message, $body );
$header_img = Give_Email_Notification_Util::get_email_logo( $this->form_id );
if ( ! empty( $header_img ) ) {
$header_img = sprintf(
'<div id="template_header_image"><p style="margin-top:0;"><img style="max-width:450px;" src="%1$s" alt="%2$s" /></p></div>',
esc_url( $header_img ),
get_bloginfo( 'name' )
);
}
$message = str_replace( '{email_logo}', $header_img, $message );
return apply_filters( 'give_email_message', $message, $this );
}
/**
* Send the email.
*
* @param string $to The To address to send to.
* @param string $subject The subject line of the email to send.
* @param string $message The body of the email to send.
* @param string|array $attachments Attachments to the email in a format supported by wp_mail().
*
* @return bool
*/
public function send( $to, $subject, $message, $attachments = '' ) {
if ( ! did_action( 'init' ) && ! did_action( 'admin_init' ) ) {
give_doing_it_wrong( __FUNCTION__, esc_html__( 'You cannot send email with Give_Emails until init/admin_init has been reached.', 'give' ) );
return false;
}
/**
* Fires before sending an email.
*
* @since 1.0
*
* @param Give_Emails $this The email object.
*/
do_action( 'give_email_send_before', $this );
$subject = $this->parse_tags( $subject );
$message = $this->parse_tags( $message );
$message = $this->build_email( $message );
$attachments = apply_filters( 'give_email_attachments', $attachments, $this );
$sent = wp_mail( $to, $subject, $message, $this->get_headers(), $attachments );
/**
* Fires after sending an email.
*
* @since 1.0
*
* @param Give_Emails $this The email object.
*/
do_action( 'give_email_send_after', $this );
return $sent;
}
/**
* Add filters / actions before the email is sent.
*
* @since 1.0
*/
public function send_before() {
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' ) );
}
/**
* Remove filters / actions after the email is sent.
*
* @since 1.0
*/
public function send_after() {
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' ) );
// Reset email related params.
$this->heading = '';
$this->from_name = '';
$this->from_address = '';
$this->form_id = 0;
}
/**
* Converts text to formatted HTML. This is primarily for turning line breaks into <p> and <br/> tags.
*
* @since 1.0
*
* @param string $message
*
* @return string
*/
public function text_to_html( $message ) {
/**
* Filter the flag which decide to process email message with wpautop or not.
*
* @since 2.3.0
*/
$disable_wpautop = apply_filters( 'give_email_message_disable_wpautop', false );
if (
( 'text/html' == $this->content_type || true === $this->html )
&& ! $disable_wpautop
) {
$message = wpautop( $message );
}
return $message;
}
}