add basic invite handling

appinfo/info.xml

@@ -11,6 +11,9 @@
     <namespace>UPschooling</namespace>
     <category>tools</category>
     <bugs>https://gitea.rs485.network/UPschooling/Nextcloud-App/issues</bugs>
+    <background-jobs>
+        <job>OCA\UPschooling\BackgroundJob\MatrixListener</job>
+    </background-jobs>
     <dependencies>
         <nextcloud min-version="20" max-version="22"/>
     </dependencies>

lib/BackgroundJob/MatrixListener.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace OCA\UPschooling\BackgroundJob;
+
+use OCA\UPschooling\Service\MatrixListenerService;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\BackgroundJob\TimedJob;
+use Psr\Log\LoggerInterface;
+
+class MatrixListener extends TimedJob {
+    /** @var MatrixListenerService */
+    private $matrixListenerService;
+
+    /** @var LoggerInterface */
+    private $logger;
+
+    public function __construct(ITimeFactory $time, MatrixListenerService $matrixListenerService, LoggerInterface $logger) {
+        parent::__construct($time);
+
+        parent::setInterval(1);
+        $this->logger = $logger;
+        $this->matrixListenerService = $matrixListenerService;
+    }
+
+    protected function run($argument) {
+        $this->matrixListenerService->listen();
+    }
+}

lib/Events/NewMessageEvent.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace OCA\UPschooling\Events;
+
+use OCP\EventDispatcher\Event;
+
+class NewMessageEvent extends Event {
+
+    public function __construct()
+    {
+
+    }
+
+}

lib/Service/MatrixListenerService.php

@@ -0,0 +1,107 @@
+<?php
+
+namespace OCA\UPschooling\Service;
+
+use Aryess\PhpMatrixSdk\Exceptions\MatrixException;
+use Aryess\PhpMatrixSdk\Exceptions\MatrixHttpLibException;
+use Aryess\PhpMatrixSdk\Exceptions\MatrixRequestException;
+use Aryess\PhpMatrixSdk\Exceptions\ValidationException;
+use Aryess\PhpMatrixSdk\MatrixClient;
+use OCA\UPschooling\Exceptions\RoomNotFoundException;
+use Psr\Log\LoggerInterface;
+
+/**
+ * This service will be used by the matrix listener background job to execute events and handle incoming 'matrix requests'
+ */
+class MatrixListenerService {
+
+	/** @var LoggerInterface */
+	private $logger;
+
+	/** @var MatrixClient */
+	private $client;
+
+	/** @var MatrixService */
+	private $matrixService;
+
+	/** @var token */
+	private $token;
+
+	/** @var string */
+	private $registrationSecret = "oyYh_iEJ7Aim.iB+ye.Xk;Gl3iHFab5*8K,zv~IulT85P=c-38";
+
+	/**
+	 * @param LoggerInterface $logger
+	 * @param MatrixService $matrixService
+	 * @throws MatrixException
+	 * @throws MatrixHttpLibException
+	 * @throws MatrixRequestException
+	 * @throws ValidationException
+	 */
+	public function __construct(LoggerInterface $logger, MatrixService $matrixService) {
+		$this->logger = $logger;
+		$this->matrixService = $matrixService;
+
+		$serverUrl = "http://synapse:8008";
+		$user = "upschooling";
+
+		$this->client = new MatrixClient($serverUrl);
+		//TODO: Replace hard coded pw
+		$this->token = $this->client->login($user, "secret", true);
+		$this->logger->debug("Logged in as " . $user . " on server " . $serverUrl);
+
+	}
+
+	/**
+	 * listens on all sorts of incoming matrix requests
+	 *
+	 * @return void
+	 * @throws MatrixException
+	 * @throws MatrixHttpLibException
+	 * @throws MatrixRequestException
+	 * @throws RoomNotFoundException
+	 */
+	public function listen() {
+		$syncResponse = $this->client->api()->sync();
+		$nextBatch = $syncResponse['next_batch'];
+		foreach (array_get($syncResponse, 'rooms.invite', []) as $roomId => $inviteRoom) {
+			$this->handleInvite($roomId);
+		}
+
+		$rooms = $this->client->getRooms();
+
+		foreach ($rooms as $roomId => $room) {
+			$messages = $this->client->api()->getRoomMessages($roomId, $nextBatch, "b", 100)["chunk"];
+			foreach ($messages as $message) {
+				if ($message["type"] == "m.room.message" && $message["content"]["msgtype"] == "m.text")
+					var_dump($message["content"]["body"]);
+			}
+		}
+	}
+
+	/**
+	 * TBD: Check if the user on the other side is actually allowed to talk to this matrix instance
+	 * @return void
+	 */
+	private function auth() {
+
+	}
+
+	/**
+	 * Given invitation object it'll enter the room
+	 *
+	 * @param int $roomId the roomID
+	 * @return void
+	 * @throws MatrixException|RoomNotFoundException
+	 */
+	private function handleInvite(int $roomId) {
+		try {
+			$this->client->joinRoom($roomId);
+			$this->client->api()->sendMessageEvent($roomId, "upschooling.matrix.accepted", []);
+		} catch (\Exception $e) {
+			$this->logger->info("Join for room: " . $roomId . " failed.");
+		}
+		$this->matrixService->setProperty($roomId, "upschooling.s2s", ["approved" => true]);
+		$this->logger->debug("joined " . $roomId);
+	}
+}