Save host key to file 'None'

[Antoine Martin]

2010/08/01 06:17:22 ServerConnection.save_host_key(ServerConfig(DesktopOnline)) to file 'None'
Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/shifter/ui/ui_util.py", line 326, in <lambda>
    dialog.connect('response', lambda x,y: self.ask_response_callback(x,y,cancel_callback, ok_callback))
  File "/usr/local/lib/python2.6/dist-packages/shifter/ui/ui_util.py", line 333, in ask_response_callback
    ok_callback()
  File "/usr/local/lib/python2.6/dist-packages/shifter/client/server_connection.py", line 391, in trust_server
    self.save_host_key(self.server_link.server)
  File "/usr/local/lib/python2.6/dist-packages/shifter/client/server_connection.py", line 409, in save_host_key
    save_binary_file(filename, data)
  File "/usr/local/lib/python2.6/dist-packages/shifter/util/file_io.py", line 263, in save_binary_file
    assert filename
AssertionError

[Antoine Martin]

this could happen when we connect to a new server for which we do not have the server.ID

fix this by always validating the server.ID (part of set_host_info) and set it if not present. All this is done before saving the host key file.

see: r1456