Add note to dav endpoint

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

apps/dav/lib/Connector/Sabre/FilesPlugin.php

@@ -70,6 +70,7 @@ class FilesPlugin extends ServerPlugin {
 	const HAS_PREVIEW_PROPERTYNAME = '{http://nextcloud.org/ns}has-preview';
 	const MOUNT_TYPE_PROPERTYNAME = '{http://nextcloud.org/ns}mount-type';
 	const IS_ENCRYPTED_PROPERTYNAME = '{http://nextcloud.org/ns}is-encrypted';
+	const SHARE_NOTE = '{http://nextcloud.org/ns}note';
 
 	/**
 	 * Reference to main server object
@@ -161,6 +162,7 @@ class FilesPlugin extends ServerPlugin {
 		$server->protectedProperties[] = self::HAS_PREVIEW_PROPERTYNAME;
 		$server->protectedProperties[] = self::MOUNT_TYPE_PROPERTYNAME;
 		$server->protectedProperties[] = self::IS_ENCRYPTED_PROPERTYNAME;
+		$server->protectedProperties[] = self::SHARE_NOTE;
 
 		// normally these cannot be changed (RFC4918), but we want them modifiable through PROPPATCH
 		$allowedProperties = ['{DAV:}getetag'];
@@ -359,6 +361,12 @@ class FilesPlugin extends ServerPlugin {
 			$propFind->handle(self::MOUNT_TYPE_PROPERTYNAME, function () use ($node) {
 				return $node->getFileInfo()->getMountPoint()->getMountType();
 			});
+
+			$propFind->handle(self::SHARE_NOTE, function() use ($node, $httpRequest) {
+				return $node->getNoteFromShare(
+					$httpRequest->getRawServerValue('PHP_AUTH_USER')
+				);
+			});
 		}
 
 		if ($node instanceof \OCA\DAV\Connector\Sabre\Node) {

apps/dav/lib/Connector/Sabre/Node.php

@@ -41,6 +41,8 @@ use OCP\Files\FileInfo;
 use OCP\Files\StorageNotAvailableException;
 use OCP\Share\Exceptions\ShareNotFound;
 use OCP\Share\IManager;
+use OCP\Share;
+use OCP\Share\IShare;
 
 
 abstract class Node implements \Sabre\DAV\INode {
@@ -290,6 +292,35 @@ abstract class Node implements \Sabre\DAV\INode {
 		return $permissions;
 	}
 
+	/**
+	 * @param string $user
+	 * @return string
+	 */
+	public function getNoteFromShare($user) {
+		if ($user == null) {
+			return '';
+		}
+
+		$types = [
+			Share::SHARE_TYPE_USER,
+			Share::SHARE_TYPE_GROUP,
+			Share::SHARE_TYPE_CIRCLE,
+			Share::SHARE_TYPE_ROOM
+		];
+
+		foreach ($types as $shareType) {
+			$shares = $this->shareManager->getSharedWith($user, $shareType, $this, -1);
+			foreach ($shares as $share) {
+				$note = $share->getNote();
+				if($share->getShareOwner() !== $user && !empty($note)) {
+					return $note;
+				}
+			}
+		}
+
+		return '';
+	}
+
 	/**
 	 * @return string
 	 */