Basically, solving #3541 with a different approach - bringing in
the upstream upnpav module, and changing ChildCount from int to a
*int to avoid childCount="0" in the XML output when that value is
simply unknown.
Current approach is leading to some recursion issues and according
to the DLNA spec it shouldn't be necessary, anyway.
Seems to be some corner cases that are not being handled, so taking a different
approach that should be a little more robust.
Also, changing resources to be served under a subpath: We've been serving
media at /res?path=%2Fdir%2Ffilename.mp4; change that to be just /r/dir/filename.mp4.
It's cleaner, easier to reason about, and a necessary first step towards just
serving the resources via httplib anyway.
- Change rclone/fs interfaces to accept context.Context
- Update interface implementations to use context.Context
- Change top level usage to propagate context to lover level functions
Context propagation is needed for stopping transfers and passing other
request-scoped values.
Tests have been randomly failing with messages like
listen tcp 127.0.0.1:51778: bind: address already in use
Rework all the test servers so they choose a random free port on
startup and use that for the tests to avoid.
The UPnP MediaServer spec says that the ConnectionManager service is
required, and adding it was enough to get dlna support working on my
other TV (LG webOS 2.2.1).
The SCPD URL was being set after marshalling the XML, and thus coming
out blank. Now works on my Samsung TV, and likely fixes some issues
reported by others in #2648.
