%PDF-
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Mini Shell
Mini Shell
<?php
class MC4WP_Tools {
/*
* Replacement output when performing string replacements
*/
public static $replacement_output = 'string';
/**
* @param array $merge_vars
*
* @return mixed
*/
public static function guess_merge_vars( array $merge_vars ) {
// maybe guess first and last name
if ( isset( $merge_vars['NAME'] ) ) {
if( ! isset( $merge_vars['FNAME'] ) && ! isset( $merge_vars['LNAME'] ) ) {
$strpos = strpos( $merge_vars['NAME'], ' ' );
if ( $strpos !== false ) {
$merge_vars['FNAME'] = trim( substr( $merge_vars['NAME'], 0, $strpos ) );
$merge_vars['LNAME'] = trim( substr( $merge_vars['NAME'], $strpos ) );
} else {
$merge_vars['FNAME'] = $merge_vars['NAME'];
}
}
}
return $merge_vars;
}
/**
* Returns text with {variables} replaced.
*
* @param string $string
* @param array $additional_replacements
* @param array Array of list ID's (needed if {subscriber_count} is set
*
* @return string $text The text with {variables} replaced.
* replaced.
*/
public static function replace_variables( $string, $additional_replacements = array(), $list_ids = array(), $output = 'string' ) {
self::$replacement_output = $output;
// replace general vars
$replacements = array(
'{ip}' => self::get_client_ip(),
'{current_url}' => mc4wp_get_current_url(),
'{current_path}' => ( ! empty( $_SERVER['REQUEST_URI'] ) ) ? esc_html( $_SERVER['REQUEST_URI'] ) : '',
'{date}' => date( 'm/d/Y' ),
'{time}' => date( 'H:i:s' ),
'{language}' => defined( 'ICL_LANGUAGE_CODE' ) ? ICL_LANGUAGE_CODE : get_locale(),
'{email}' => self::get_known_email(),
'{user_email}' => '',
'{user_firstname}' => '',
'{user_lastname}' => '',
'{user_name}' => '',
'{user_id}' => '',
);
// setup replacements for logged-in users
if ( is_user_logged_in()
&& ( $user = wp_get_current_user() )
&& ( $user instanceof WP_User ) ) {
// logged in user, replace vars by user vars
$replacements['{user_email}'] = $user->user_email;
$replacements['{user_firstname}'] = $user->first_name;
$replacements['{user_lastname}'] = $user->last_name;
$replacements['{user_name}'] = $user->display_name;
$replacements['{user_id}'] = $user->ID;
}
// merge with additional replacements
$replacements = array_merge( $replacements, $additional_replacements );
// subscriber count? only fetch these if the tag is actually used
if ( stristr( $string, '{subscriber_count}' ) !== false ) {
$mailchimp = new MC4WP_MailChimp();
$subscriber_count = $mailchimp->get_subscriber_count( $list_ids );
$replacements['{subscriber_count}'] = $subscriber_count;
}
// encode replacements when output type is set to 'url'
if( self::$replacement_output === 'url' ) {
$replacements = urlencode_deep( $replacements );
}
// perform the replacement
$string = str_ireplace( array_keys( $replacements ), array_values( $replacements ), $string );
// replace dynamic variables
if( stristr( $string, '{data_' ) !== false ) {
$string = preg_replace_callback('/\{data_([\w-.]+)( default=\"([^"]*)\"){0,1}\}/', array( 'MC4WP_Tools', 'replace_request_data_variables' ), $string );
}
return $string;
}
/**
* @param $matches
*
* @return string
*/
public static function replace_request_data_variables( $matches ) {
$variable = strtoupper( $matches[1] );
$default = ( ! empty( $matches[3] ) ) ? $matches[3] : '';
$request_data = array_change_key_case( $_REQUEST, CASE_UPPER );
if( isset( $request_data[ $variable ] ) && is_scalar( $request_data[ $variable ] ) ) {
// return urlencoded variable if replacement output is set to 'url'
if( self::$replacement_output === 'url' ) {
return urlencode( $request_data[ $variable ] );
}
return esc_html( $request_data[ $variable ] );
}
return $default;
}
/**
* Returns the email address of the visitor if it is known to us
*
* @return string
*/
public static function get_known_email() {
// case insensitive check in $_REQUEST
$request_data = array_change_key_case( $_REQUEST, CASE_LOWER );
if( isset( $request_data['email'] ) ) {
$email = $request_data['email'];
} elseif( isset( $request_data['mc4wp_email'] ) ) {
$email = $request_data['mc4wp_email'];
} elseif( isset( $_COOKIE['mc4wp_email'] ) ) {
$email = $_COOKIE['mc4wp_email'];
} else {
$email = '';
}
return strip_tags( $email );
}
/**
* Returns the IP address of the visitor, does not take proxies into account.
*
* @return string
*/
public static function get_client_ip() {
$headers = ( function_exists( 'apache_request_headers' ) ) ? apache_request_headers() : $_SERVER;
if ( array_key_exists( 'X-Forwarded-For', $headers ) && filter_var( $headers['X-Forwarded-For'], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 ) ) {
$ip = $headers['X-Forwarded-For'];
} elseif ( array_key_exists( 'HTTP_X_FORWARDED_FOR', $headers ) && filter_var( $headers['HTTP_X_FORWARDED_FOR'], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 ) ) {
$ip = $headers['HTTP_X_FORWARDED_FOR'];
} else {
$ip = filter_var( $_SERVER['REMOTE_ADDR'], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 );
}
return $ip;
}
/**
* @param $email
*/
public static function remember_email( $email ) {
/**
* @filter `mc4wp_cookie_expiration_time`
* @expects timestamp
* @default timestamp for 90 days from now
*
* Timestamp indicating when the email cookie expires, defaults to 90 days
*/
$expiration_time = apply_filters( 'mc4wp_cookie_expiration_time', strtotime( '+90 days' ) );
setcookie( 'mc4wp_email', $email, $expiration_time, '/' );
}
}
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