class-wpml-tm-ate-authentication.php
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<?php
/**
* @author OnTheGo Systems
*/
class WPML_TM_ATE_Authentication {
const AMS_DATA_KEY = 'WPML_TM_AMS';
const AMS_STATUS_NON_ACTIVE = 'non-active';
const AMS_STATUS_ENABLED = 'enabled';
const AMS_STATUS_ACTIVE = 'active';
/** @var string|null $site_id */
private $site_id = null;
public function get_signed_url_with_parameters( $verb, $url, $params = null ) {
if ( $this->has_keys() ) {
$url = $this->add_required_arguments_to_url( $verb, $url, $params );
return $this->signUrl( $verb, $url, $params );
}
return new WP_Error( 'auth_error', 'Unable to authenticate' );
}
public function signUrl( $verb, $url, $params = null ) {
$url_parts = wp_parse_url( $url );
$query = $this->get_url_query( $url );
$query['signature'] = $this->get_signature( $verb, $url, $params );
$url_parts['query'] = $this->build_query( $query );
return http_build_url( $url_parts );
}
private function get_signature( $verb, $url, array $params = null ) {
if ( $this->has_keys() ) {
$verb = strtolower( $verb );
$url_parts = wp_parse_url( $url );
$query_to_sign = $this->get_url_query( $url );
if ( $params && 'get' !== $verb ) {
$query_to_sign['body'] = md5( (string) wp_json_encode( $params, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES ) );
}
$url_parts_to_sign = $url_parts;
$url_parts_to_sign['query'] = $this->build_query( $query_to_sign );
$url_to_sign = http_build_url( $url_parts_to_sign );
$string_to_sign = strtolower( $verb ) . $url_to_sign;
$sha1 = hash_hmac( 'sha1', $string_to_sign, $this->get_secret(), true );
return base64_encode( $sha1 );
}
return null;
}
public function has_keys() {
return $this->get_secret() && $this->get_shared();
}
private function get_secret() {
return $this->get_ams_data_property( 'secret' );
}
private function get_shared() {
return $this->get_ams_data_property( 'shared' );
}
private function get_ams_data_property( $field ) {
$data = $this->get_ams_data();
if ( array_key_exists( $field, $data ) ) {
return $data[ $field ];
}
return null;
}
/**
* @return array
*/
private function get_ams_data() {
return get_option( self::AMS_DATA_KEY, [] );
}
/**
* @param string $verb
* @param string $url
* @param array|null $params
*
* @return string
*/
private function add_required_arguments_to_url( $verb, $url, array $params = null ) {
$verb = strtolower( $verb );
$url_parts = wp_parse_url( $url );
$query = $this->get_url_query( $url );
if ( $params && 'get' === $verb ) {
foreach ( $params as $key => $value ) {
$query[ $key ] = $value;
}
}
$query['wpml_core_version'] = ICL_SITEPRESS_VERSION;
$query['wpml_tm_version'] = WPML_TM_VERSION;
$query['shared_key'] = $this->get_shared();
$query['token'] = uuid_v5( wp_generate_uuid4(), $url );
$query['website_uuid'] = $this->get_site_id();
$query['ui_language_code'] = apply_filters(
'wpml_get_user_admin_language',
wpml_get_default_language(),
get_current_user_id()
);
if( function_exists( 'OTGS_Installer' ) ) {
$query['site_key'] = OTGS_Installer()->get_site_key( 'wpml' );
}
$url_parts['query'] = http_build_query( $query );
return http_build_url( $url_parts );
}
/**
* @param string $url
*
* @return array
*/
private function get_url_query( $url ) {
$url_parts = wp_parse_url( $url );
$query = array();
if ( is_array( $url_parts ) && array_key_exists( 'query', $url_parts ) ) {
parse_str( $url_parts['query'], $query );
}
return $query;
}
/**
* @param $query
*
* @return mixed|string
*/
protected function build_query( $query ) {
if ( PHP_VERSION_ID >= 50400 ) {
$final_query = http_build_query( $query, '', '&', PHP_QUERY_RFC3986 );
} else {
$final_query = str_replace(
array( '+', '%7E' ),
array( '%20', '~' ),
http_build_query( $query )
);
}
return $final_query;
}
/**
* @param string|null $site_id
*/
public function override_site_id( $site_id ) {
$this->site_id = $site_id;
}
public function get_site_id() {
return $this->site_id ? $this->site_id : wpml_get_site_id( WPML_TM_ATE::SITE_ID_SCOPE );
}
}