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Add listeners to base_websocket_system_service

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This commit is contained in:
Tim Fry
2025-10-25 18:44:23 -03:00
parent c310f6adcd
commit b774ea35bd
2 changed files with 72 additions and 33 deletions
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51
core/websockets/resources/classes/base_websocket_system_service.php
View File

@@ -24,7 +24,20 @@ abstract class base_websocket_system_service extends service implements websocke
private $timers;
//abstract protected function reload_settings(): void;
/**
* Array of topics and their callbacks
* @var array
*/
protected $topics;
/**
* Array of listeners
* Listener is an array of socket and callback used to listen for events on the socket. When a listener is added,
* the socket is added to the array of listeners. When the socket is closed, the listener is removed from the
* array of listeners. When an event is received on the respective socket, the provided callback is called.
* @var array
*/
protected $listeners;
protected static function display_version(): void {
echo "System Dashboard Service 1.0\n";
@@ -69,10 +82,24 @@ abstract class base_websocket_system_service extends service implements websocke
self::$websocket_host = $host;
}
/**
* Add a socket listener
*
* @param $socket
* @param callable $callback
* @return void
*/
protected function add_listener($socket, callable $callback): void {
$this->listeners[] = [$socket, $callback];
}
public function run(): int {
// set the timers property as an array
$this->timers = [];
// Set the listeners property as an array
$this->listeners = [];
// re-read the config file to get any possible changes
parent::$config->read();
@@ -94,7 +121,9 @@ abstract class base_websocket_system_service extends service implements websocke
$suppress_ws_message = false;
while ($this->running) {
$read = [];
// Get the array of sockets to read from
$listeners = array_column($this->listeners, 0);
// reconnect to websocket server
if ($this->ws_client === null || !$this->ws_client->is_connected()) {
// reconnect failed
@@ -105,7 +134,9 @@ abstract class base_websocket_system_service extends service implements websocke
}
if ($this->ws_client !== null && $this->ws_client->is_connected()) {
$read[] = $this->ws_client->socket();
// Combine the websocket client and the listeners into a single array
$read = array_merge($listeners, $this->ws_client->socket());
// Reset the suppress message flag
$suppress_ws_message = false;
}
@@ -129,6 +160,14 @@ abstract class base_websocket_system_service extends service implements websocke
$this->handle_websocket_event($this->ws_client);
continue;
}
// Other listeners
foreach ($this->listeners as $listener) {
if ($resource === $listener[0]) {
// Call the callback function provided by the add_listener function
call_user_func($listener[1]);
continue;
}
}
}
}
}
@@ -143,7 +182,7 @@ abstract class base_websocket_system_service extends service implements websocke
$callable = $array['callable'];
// Call the callback and see if it returns a value for the next timer
$next_timer = call_user_func($callable);
if ($next_timer !== null && is_numeric($next_timer)) {
if (is_numeric($next_timer)) {
// Set the timer again when requested by called function returning a value
$this->set_timer($next_timer, $callable);
}
@@ -244,8 +283,8 @@ abstract class base_websocket_system_service extends service implements websocke
/**
* Allows the service to register a callback so when the topic arrives the callable is called
* @param type $topic
* @param type $callable
* @param string $topic
* @param callable $callable
*/
protected function on_topic($topic, $callable) {
if (!isset($this->topics[$topic])) {

54
core/websockets/resources/classes/websocket_message.php
View File

@@ -308,19 +308,19 @@ class websocket_message extends base_message {
/**
* Helper function to respond with a connected message
* @param type $request_id
* @return type
* @param string|int $request_id
* @return string
*/
public static function connected($request_id = '') {
public static function connected($request_id = ''): string {
return static::request_authentication($request_id);
}
/**
* Helper function to respond with a authentication message
* @param type $request_id
* @return type
* @param string|int $request_id
* @return string
*/
public static function request_authentication($request_id = '') {
public static function request_authentication($request_id = ''): string {
$class = static::class;
return (new $class())
->request_id($request_id)
@@ -334,12 +334,12 @@ class websocket_message extends base_message {
/**
* Helper function to respond with a bad request message
* @param type $request_id
* @param type $service
* @param type $topic
* @return type
* @param string|int $request_id
* @param string $service
* @param string $topic
* @return string
*/
public static function request_is_bad($request_id = '', $service = '', $topic = '') {
public static function request_is_bad($request_id = '', string $service = '', string $topic = ''): string {
$class = static::class;
return (new $class())
->request_id($request_id)
@@ -352,12 +352,12 @@ class websocket_message extends base_message {
/**
* Helper function to respond with an authenticated message
* @param type $request_id
* @param type $service
* @param type $topic
* @return type
* @param string|int $request_id
* @param string $service
* @param string $topic
* @return string
*/
public static function request_authenticated($request_id = '', $service = '', $topic = 'authenticated') {
public static function request_authenticated($request_id = '', string $service = '', string $topic = 'authenticated'): string {
$class = static::class;
return (new $class())
->request_id($request_id)
@@ -371,12 +371,12 @@ class websocket_message extends base_message {
/**
* Helper function to respond with an unauthorized request message
* @param type $request_id
* @param type $service
* @param type $topic
* @return type
* @param string|int $request_id
* @param string $service
* @param string $topic
* @return string
*/
public static function request_unauthorized($request_id = '', $service = '', $topic = 'unauthorized') {
public static function request_unauthorized($request_id = '', string $service = '', string $topic = 'unauthorized'): string {
$class = static::class;
return (new $class())
->request_id($request_id)
@@ -389,12 +389,12 @@ class websocket_message extends base_message {
/**
* Helper function to respond with a forbidden message
* @param type $request_id
* @param type $service
* @param type $topic
* @return type
* @param string|int $request_id
* @param string $service
* @param string $topic
* @return string
*/
public static function request_forbidden($request_id = '', $service = '', $topic = 'forbidden') {
public static function request_forbidden($request_id = '', string $service = '', string $topic = 'forbidden'): string {
$class = static::class;
return (new $class())
->request_id($request_id)
@@ -411,7 +411,7 @@ class websocket_message extends base_message {
* @return static|null Returns a new websocket_message object (or child object)
* @throws \InvalidArgumentException
*/
public static function create_from_json_message($websocket_message_json) {
public static function create_from_json_message($websocket_message_json): ?websocket_message {
if (empty($websocket_message_json)) {
// Nothing to do
return null;