Merge pull request #48508 from nextcloud/fix/webcal-subscription-jobs-middleware

fix(caldav): add missing handlers

2 files changed, 59 insertions, 88 deletions

diff --git a/apps/dav/lib/CalDAV/WebcalCaching/Connection.php b/apps/dav/lib/CalDAV/WebcalCaching/Connection.php
index 51d8cff2ed3..3d12c92c49a 100644
--- a/apps/dav/lib/CalDAV/WebcalCaching/Connection.php
+++ b/apps/dav/lib/CalDAV/WebcalCaching/Connection.php
@@ -9,15 +9,11 @@ declare(strict_types=1);
 namespace OCA\DAV\CalDAV\WebcalCaching;
 
 use Exception;
-use GuzzleHttp\HandlerStack;
-use GuzzleHttp\Middleware;
+use GuzzleHttp\RequestOptions;
 use OCP\Http\Client\IClientService;
 use OCP\Http\Client\LocalServerException;
 use OCP\IAppConfig;
-use Psr\Http\Message\RequestInterface;
-use Psr\Http\Message\ResponseInterface;
 use Psr\Log\LoggerInterface;
-use Sabre\DAV\Xml\Property\Href;
 use Sabre\VObject\Reader;
 
 class Connection {
@@ -31,107 +27,82 @@ class Connection {
 	/**
 	 * gets webcal feed from remote server
 	 */
-	public function queryWebcalFeed(array $subscription, array &$mutations): ?string {
-		$client = $this->clientService->newClient();
-
-		$didBreak301Chain = false;
-		$latestLocation = null;
-
-		$handlerStack = HandlerStack::create();
-		$handlerStack->push(Middleware::mapRequest(function (RequestInterface $request) {
-			return $request
-				->withHeader('Accept', 'text/calendar, application/calendar+json, application/calendar+xml')
-				->withHeader('User-Agent', 'Nextcloud Webcal Service');
-		}));
-		$handlerStack->push(Middleware::mapResponse(function (ResponseInterface $response) use (&$didBreak301Chain, &$latestLocation) {
-			if (!$didBreak301Chain) {
-				if ($response->getStatusCode() !== 301) {
-					$didBreak301Chain = true;
-				} else {
-					$latestLocation = $response->getHeader('Location');
-				}
-			}
-			return $response;
-		}));
-
-		$allowLocalAccess = $this->config->getValueString('dav', 'webcalAllowLocalAccess', 'no');
+	public function queryWebcalFeed(array $subscription): ?string {
 		$subscriptionId = $subscription['id'];
 		$url = $this->cleanURL($subscription['source']);
 		if ($url === null) {
 			return null;
 		}
 
-		try {
-			$params = [
-				'allow_redirects' => [
-					'redirects' => 10
-				],
-				'handler' => $handlerStack,
-				'nextcloud' => [
-					'allow_local_address' => $allowLocalAccess === 'yes',
-				]
-			];
-
-			$user = parse_url($subscription['source'], PHP_URL_USER);
-			$pass = parse_url($subscription['source'], PHP_URL_PASS);
-			if ($user !== null && $pass !== null) {
-				$params['auth'] = [$user, $pass];
-			}
+		$allowLocalAccess = $this->config->getValueString('dav', 'webcalAllowLocalAccess', 'no');
+
+		$params = [
+			'nextcloud' => [
+				'allow_local_address' => $allowLocalAccess === 'yes',
+			],
+			RequestOptions::HEADERS => [
+				'User-Agent' => 'Nextcloud Webcal Service',
+				'Accept' => 'text/calendar, application/calendar+json, application/calendar+xml',
+			],
+		];
+
+		$user = parse_url($subscription['source'], PHP_URL_USER);
+		$pass = parse_url($subscription['source'], PHP_URL_PASS);
+		if ($user !== null && $pass !== null) {
+			$params[RequestOptions::AUTH] = [$user, $pass];
+		}
 
+		try {
+			$client = $this->clientService->newClient();
 			$response = $client->get($url, $params);
-			$body = $response->getBody();
-
-			if ($latestLocation !== null) {
-				$mutations['{http://calendarserver.org/ns/}source'] = new Href($latestLocation);
-			}
-
-			$contentType = $response->getHeader('Content-Type');
-			$contentType = explode(';', $contentType, 2)[0];
-			switch ($contentType) {
-				case 'application/calendar+json':
-					try {
-						$jCalendar = Reader::readJson($body, Reader::OPTION_FORGIVING);
-					} catch (Exception $ex) {
-						// In case of a parsing error return null
-						$this->logger->warning("Subscription $subscriptionId could not be parsed", ['exception' => $ex]);
-						return null;
-					}
-					return $jCalendar->serialize();
-
-				case 'application/calendar+xml':
-					try {
-						$xCalendar = Reader::readXML($body);
-					} catch (Exception $ex) {
-						// In case of a parsing error return null
-						$this->logger->warning("Subscription $subscriptionId could not be parsed", ['exception' => $ex]);
-						return null;
-					}
-					return $xCalendar->serialize();
-
-				case 'text/calendar':
-				default:
-					try {
-						$vCalendar = Reader::read($body);
-					} catch (Exception $ex) {
-						// In case of a parsing error return null
-						$this->logger->warning("Subscription $subscriptionId could not be parsed", ['exception' => $ex]);
-						return null;
-					}
-					return $vCalendar->serialize();
-			}
 		} catch (LocalServerException $ex) {
 			$this->logger->warning("Subscription $subscriptionId was not refreshed because it violates local access rules", [
 				'exception' => $ex,
 			]);
-
 			return null;
 		} catch (Exception $ex) {
 			$this->logger->warning("Subscription $subscriptionId could not be refreshed due to a network error", [
 				'exception' => $ex,
 			]);
-
 			return null;
 		}
+
+		$body = $response->getBody();
+
+		$contentType = $response->getHeader('Content-Type');
+		$contentType = explode(';', $contentType, 2)[0];
+		switch ($contentType) {
+			case 'application/calendar+json':
+				try {
+					$jCalendar = Reader::readJson($body, Reader::OPTION_FORGIVING);
+				} catch (Exception $ex) {
+					// In case of a parsing error return null
+					$this->logger->warning("Subscription $subscriptionId could not be parsed", ['exception' => $ex]);
+					return null;
+				}
+				return $jCalendar->serialize();
+
+			case 'application/calendar+xml':
+				try {
+					$xCalendar = Reader::readXML($body);
+				} catch (Exception $ex) {
+					// In case of a parsing error return null
+					$this->logger->warning("Subscription $subscriptionId could not be parsed", ['exception' => $ex]);
+					return null;
+				}
+				return $xCalendar->serialize();
+
+			case 'text/calendar':
+			default:
+				try {
+					$vCalendar = Reader::read($body);
+				} catch (Exception $ex) {
+					// In case of a parsing error return null
+					$this->logger->warning("Subscription $subscriptionId could not be parsed", ['exception' => $ex]);
+					return null;
+				}
+				return $vCalendar->serialize();
+		}
 	}
 
 	/**
diff --git a/apps/dav/lib/CalDAV/WebcalCaching/RefreshWebcalService.php b/apps/dav/lib/CalDAV/WebcalCaching/RefreshWebcalService.php
index 988898fc6d8..a0981e6dec1 100644
--- a/apps/dav/lib/CalDAV/WebcalCaching/RefreshWebcalService.php
+++ b/apps/dav/lib/CalDAV/WebcalCaching/RefreshWebcalService.php
@@ -58,7 +58,7 @@ class RefreshWebcalService {
 		}
 
 
-		$webcalData = $this->connection->queryWebcalFeed($subscription, $mutations);
+		$webcalData = $this->connection->queryWebcalFeed($subscription);
 		if (!$webcalData) {
 			return;
 		}