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<?php
class ITSEC_SSL {
private static $instance = false;
private $config_hooks_added = false;
private $http_site_url;
private $https_site_url;
private function __construct() {
$this->init();
}
public static function get_instance() {
if ( ! self::$instance ) {
self::$instance = new self;
}
return self::$instance;
}
public static function activate() {
$self = self::get_instance();
$self->add_config_hooks();
ITSEC_Response::regenerate_wp_config();
}
public static function deactivate() {
$self = self::get_instance();
$self->remove_config_hooks();
ITSEC_Response::regenerate_wp_config();
}
public function add_config_hooks() {
if ( $this->config_hooks_added ) {
return;
}
add_filter( 'itsec_filter_wp_config_modification', array( $this, 'filter_wp_config_modification' ) );
$this->config_hooks_added = true;
}
public function remove_config_hooks() {
remove_filter( 'itsec_filter_wp_config_modification', array( $this, 'filter_wp_config_modification' ) );
$this->config_hooks_added = false;
}
public function init() {
$this->add_config_hooks();
add_action( 'template_redirect', array( $this, 'do_conditional_ssl_redirect' ), 0 );
$settings = ITSEC_Modules::get_settings( 'ssl' );
if ( 'enabled' === $settings['require_ssl'] ) {
add_filter( 'option_siteurl', array( $this, 'get_https_url' ), 5 );
add_filter( 'option_home', array( $this, 'get_https_url' ), 5 );
}
if ( is_ssl() ) {
$this->http_site_url = site_url( '', 'http' );
$this->https_site_url = site_url( '', 'https' );
add_filter( 'the_content', array( $this, 'replace_content_urls' ) );
add_filter( 'script_loader_src', array( $this, 'script_loader_src' ) );
add_filter( 'style_loader_src', array( $this, 'style_loader_src' ) );
add_filter( 'upload_dir', array( $this, 'upload_dir' ) );
} else if ( 'enabled' === $settings['require_ssl'] && 'cli' !== php_sapi_name() && 'GET' === $_SERVER['REQUEST_METHOD'] ) {
$this->redirect_to_https();
}
}
public function get_https_url( $url ) {
return preg_replace( '/^http:/', 'https:', $url );
}
/**
* Redirects to or from SSL where appropriate
*
* @since 4.0
*
* @return void
*/
public function do_conditional_ssl_redirect() {
if ( 'cli' === php_sapi_name() ) {
return;
}
$settings = ITSEC_Modules::get_settings( 'ssl' );
$protocol = 'http';
if ( 2 === $settings['frontend'] ) {
$protocol = 'https';
} else if ( 1 === $settings['frontend'] && is_singular() ) {
global $post;
$enable_ssl = get_post_meta( $post->ID, 'itsec_enable_ssl' );
if ( ! empty( $enable_ssl ) ) {
if ( $enable_ssl[0] ) {
$protocol = 'https';
} else {
delete_post_meta( $post->ID, 'itsec_enable_ssl' );
}
}
} else {
return;
}
$is_ssl = is_ssl();
if ( $is_ssl && ( 'http' === $protocol ) ) {
$this->redirect_to_http();
} else if ( ! $is_ssl && ( 'https' == $protocol ) ) {
$this->redirect_to_https();
}
}
private function redirect_to_http() {
$redirect = "http://{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}";
wp_redirect( $redirect, 301 );
exit();
}
private function redirect_to_https() {
$redirect = "https://{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}";
wp_redirect( $redirect, 301 );
exit();
}
/**
* Replace urls in content with ssl
*
* @since 4.1
*
* @param string $content the content
*
* @return string the content
*/
public function replace_content_urls( $content ) {
return str_replace( $this->http_site_url, $this->https_site_url, $content );
}
/**
* Replace urls in scripts with ssl
*
* @since 4.4
*
* @param string $script_loader_src the url
*
* @return string the url
*/
public function script_loader_src( $script_loader_src ) {
return str_replace( $this->http_site_url, $this->https_site_url, $script_loader_src );
}
/**
* Replace urls in styles with ssl
*
* @since 4.4
*
* @param string $style_loader_src the url
*
* @return string the url
*/
public function style_loader_src( $style_loader_src ) {
return str_replace( $this->http_site_url, $this->https_site_url, $style_loader_src );
}
/**
* filter uploads dir so that plugins using it to determine upload URL also work
*
* @since 4.0
*
* @param array $uploads
*
* @return array
*/
public function upload_dir( $upload_dir ) {
$upload_dir['url'] = str_replace( $this->http_site_url, $this->https_site_url, $upload_dir['url'] );
$upload_dir['baseurl'] = str_replace( $this->http_site_url, $this->https_site_url, $upload_dir['baseurl'] );
return $upload_dir;
}
public function filter_wp_config_modification( $modification ) {
$settings = ITSEC_Modules::get_settings( 'ssl' );
if ( 'enabled' === $settings['require_ssl'] ) {
$modification .= "define( 'FORCE_SSL_ADMIN', true ); // " . __( 'Redirect All HTTP Page Requests to HTTPS - Security > Settings > Secure Socket Layers (SSL) > SSL for Dashboard', 'better-wp-security' ) . "\n";
} else if ( 'advanced' === $settings['require_ssl'] && $settings['admin'] ) {
$modification .= "define( 'FORCE_SSL_ADMIN', true ); // " . __( 'Force SSL for Dashboard - Security > Settings > Secure Socket Layers (SSL) > SSL for Dashboard', 'better-wp-security' ) . "\n";
}
return $modification;
}
}
ITSEC_SSL::get_instance();
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