dsource is unusable

[Kagamin]

I have well-known problem with svn client: proxy doesn't allow svn report http requests:
svn: Server sent unexpected return value (400 Bad Request) in response to REPORT request for '/repos/svn/!svn/vcc/default'

So svn access in unusable with dsource and I found no feasible method to get sources from it. Projects don't publish snapshots and trac doesn't provide them either. SSL should work, but it's not available at dsource.