5b82efa0be
- be explicit and expect only ssh-dss or ssh-rsa keys - allow any character (even line breaks and whitespace) in the optional comment, but shrink all of them to simple spaces (fixes issue 679) - test the newly uploaded key against existing keys only by the base key data, not the fully uploaded string (that might contain a changed comment line or the like) to avoid duplicates; also only check the keys of the user for duplicates, not all existing keys in the forge (if for whatever reason two user accounts share a key)