Add unsubscribe

Author: sy-records

README.md

@@ -58,3 +58,76 @@ Options:
 Help:
   An MQTT version 3.1/3.1.1/5.0 client for publishing simple messages
 ```
+
+### Subscribe
+
+```bash
+$ php vendor/bin/mqtt subscribe --help
+Description:
+  Subscribing to topics
+
+Usage:
+  subscribe [options]
+
+Options:
+  -H, --host[=HOST]                        Specify the host to connect to [default: "localhost"]
+  -P, --port[=PORT]                        Connect to the port specified [default: 1883]
+  -i, --id[=ID]                            The id to use for this client [default: ""]
+      --qos=QOS                            Specify the quality of service to use for the message, from 0, 1 and 2 (multiple values allowed)
+  -t, --topic=TOPIC                        The MQTT topic to subscribe to (multiple values allowed)
+  -u, --username[=USERNAME]                Provide a username to be used for authenticating with the broker
+  -p, --pw[=PW]                            Provide a password to be used for authenticating with the broker
+  -c, --clean-session[=CLEAN-SESSION]      Setting the 'clean session' flag [default: true]
+  -l, --level=LEVEL                        MQTT Protocol level [default: 4]
+  -k, --keepalive[=KEEPALIVE]              The number of seconds between sending PING commands to the broker for the purposes of informing it we are still connected and functioning [default: 0]
+      --will-topic[=WILL-TOPIC]            The topic on which to send a Will, in the event that the client disconnects unexpectedly
+      --will-message[=WILL-MESSAGE]        Specify a message that will be stored by the broker and sent out if this client disconnects unexpectedly
+      --will-qos[=WILL-QOS]                The QoS to use for the Will [default: 0]
+      --will-retain[=WILL-RETAIN]          If given, if the client disconnects unexpectedly the message sent out will be treated as a retained message [default: 0]
+  -S, --ssl[=SSL]                          Enable SSL encryption [default: false]
+      --config-path[=CONFIG-PATH]          Setting the Swoole config file path
+      --properties-path[=PROPERTIES-PATH]  Setting the Properties config file path
+  -U, --unsubscribe[=UNSUBSCRIBE]          Topics that need to be unsubscribed (multiple values allowed)
+  -h, --help                               Display help for the given command. When no command is given display help for the list command
+  -q, --quiet                              Do not output any message
+  -V, --version                            Display this application version
+      --ansi                               Force ANSI output
+      --no-ansi                            Disable ANSI output
+  -n, --no-interaction                     Do not ask any interactive question
+  -v|vv|vvv, --verbose                     Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug
+
+Help:
+  An MQTT version 3.1/3.1.1/5.0 client for subscribing to topics
+```
+
+### Path
+
+There are two config: `--config-path` and `--properties-path`, you need to specify the path to the config file.
+
+- `--config-path`
+
+```php
+// config.php
+
+return [
+    'open_mqtt_protocol' => true,
+    'package_max_length' => 2 * 1024 * 1024,
+];
+```
+
+- `--properties-path`
+
+```php
+// properties.php
+
+return [
+    'publish' => [
+        'topic_alias' => 1,
+        'message_expiry_interval' => 12,
+    ],
+    'will' => [
+        'will_delay_interval' => 60,
+        'message_expiry_interval' => 60,
+    ],
+];
+```

src/Handler/SubscribeHandler.php

@@ -63,12 +63,26 @@ public function handle(InputInterface $input, OutputInterface $output): int
             if ($config->isMQTT5()) {
                 $this->logInfo("Connect Reason Code: {$connect['code']}, Reason: " . ReasonCode::getReasonPhrase($connect['code']));
             }
-            // TODO: unsubscribe
+
+            // unsubscribe
+            $un_subscribe = $this->getUnsubscribe();
+            if (!empty($un_subscribe)) {
+                $un_subscribe_res = $client->unSubscribe($un_subscribe, $this->getProperties('unsubscribe'));
+                $this->log(json_encode($un_subscribe_res));
+
+                $unsub_ack_data = array_combine($topic, $un_subscribe_res['codes']);
+                foreach ($unsub_ack_data as $key => $code) {
+                    $this->logInfo("UnSubscribe [{$key}], Reason Code: {$code}, Reason: " . ReasonCode::getReasonPhrase($code));
+                }
+
+                if (empty($subscribe)) {
+                    return Command::SUCCESS;
+                }
+            }
 
             // subscribe
             $sub_ack = $client->subscribe($subscribe, $this->getProperties('subscribe'));
             $this->log(json_encode($sub_ack));
-
             if (is_array($sub_ack)) {
                 if ($sub_ack['type'] === Types::SUBACK) {
                     $sub_ack_data = array_combine($topic, $sub_ack['codes']);
@@ -77,6 +91,7 @@ public function handle(InputInterface $input, OutputInterface $output): int
                     }
                 }
                 if (isset($sub_ack['code'])) {
+                    $client->close();
                     $this->logError('Subscribe error, ' . ReasonCode::getReasonPhrase($sub_ack['code']));
                     goto failure;
                 }
@@ -87,7 +102,8 @@ public function handle(InputInterface $input, OutputInterface $output): int
                 $buffer = $client->recv();
                 if ($buffer && $buffer !== true) {
                     $this->log(json_encode($buffer));
-                    // need event
+                    // TODO: need event
+                    // $client $this->input $this->output
                 }
                 if ($timeSincePing <= (time() - $client->getConfig()->getKeepAlive())) {
                     $buffer = $client->ping();