#PutChild Upload file with milton webdav in Mac Finder failed - webdav

Question

I'm using milton, and my upload code as follows:
#PutChild
#Transactional
public FileContentItem uploadFile(FolderContentItem parent, String name, byte[] bytes){
String traceId = UuidGenUtil.createUuid();
try {
QUERY_LOGGER.info("[uploadFile][NetdiskController],action=Request, name={}, size={},traceId={}",name,bytes.length,traceId);
In windows, i can upload file successfully, but with Mac Finder, the length of bytes is always 0, and the error as follow:
The Finder can't complete the operation because some data in "Shot.png" can't be read or written (Error code -36)
Anyone know why? Thanks
Update: I try ForkLift webdav client in mac and can upload file successfully

Answer 1

The problem is that mac finder sends first request for creating new file without any byte
After it - call LOCK, which is not available for Dav Level 1, that's why you have bad response from server and mac stop uploading a file. This method availiable only for Dav level 2, so you have to get enterprise license of milton to make it work
After Locking object Finder uploads the file
After - calls UNLOCK method
SO if you want to use mac finder for webdav in milton you have several options:
Get the trial enterprise license and look into this example:https://github.com/miltonio/milton2/tree/master/examples/milton-anno-ref
Realize these methods by yourself by webdav specs
Mock it - extend from MiltonFilter or look into MyOwnServlet in example and in method doFilter/service write something like this:
//mock method, do not use it in production!
HttpServletRequest request = (HttpServletRequest)req;
HttpServletResponse response = (HttpServletResponse) resp;
if(request.getMethod().equals("LOCK")){
response.setStatus(200);
response.addHeader("Lock-Token", "<opaquelocktoken:e71d4fae-5dec-22d6-fea5-00a0c91e6be4>");
} else if(request.getMethod().equals("UNLOCK")){
response.setStatus(204);
}else {
doMiltonProcessing((HttpServletRequest) req, (HttpServletResponse) resp);
}
I've checked this code working in the examble by link above: make in web.xml method serving by MyOwnServlet, disable authentication in init by implementing empty security manager, set controller packages to scan "com.mycompany"
p.s. to build the example project I've to delete milton client dependency from pom.xml file