[LDTP-Dev] [Bug 629053] New: Socket error on python ldtp import when running from remote terminal

[LDTP (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=629053
  LDTP | ldtp2 | 2.0.0

           Summary: Socket error on python ldtp import when running from
                    remote terminal
    Classification: Other
           Product: LDTP
           Version: 2.0.0
        OS/Version: Solaris
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: ldtp2
        AssignedTo: ldtp-dev at lists.freedesktop.org
        ReportedBy: brian.nitz at oracle.com
         QAContact: ldtp-dev at lists.freedesktop.org
      GNOME target: ---
     GNOME version: ---


Steps to reproduce:

1) Install ldtp2 on testhost

2) Enable accessibility on testhost

3) login to testhost desktop


4) ssh from anotherhost to testhost (you can try ssh -X, set your DISPLAY,
xhost+...), in all cases, ldtp cannot be run remotely because of socket connect
errors:

bash-4.0$ python
Python 2.6.4 (r264:75706, Aug 16 2010, 16:36:38) [C] on sunos5
Type "help", "copyright", "credits" or "license" for more information.
>>> import ldtp

** (-c:1191): WARNING **: Trying to register gtype 'WnckWindowState' as enum
when in fact it is of type 'GFlags'

** (-c:1191): WARNING **: Trying to register gtype 'WnckWindowActions' as enum
when in fact it is of type 'GFlags'

** (-c:1191): WARNING **: Trying to register gtype 'WnckWindowMoveResizeMask'
as enum when in fact it is of type 'GFlags'
Traceback (most recent call last):

+ Trace 223590

    * File "<string>", line 1 in <module>
    * File "/usr/lib/python2.6/site-packages/ldtpd/__init__.py", line 56 in
main

      pyatspi.setCacheLevel(pyatspi.CACHE_PROPERTIES)

    * File "/usr/lib/python2.6/vendor-packages/pyatspi/accessible.py", line 91
in setCacheLevel

      r.registerEventListener(_updateCache, *constants.CACHE_EVENTS)

    * File "/usr/lib/python2.6/vendor-packages/pyatspi/registry.py", line 331
in __getattribute__

      raise RuntimeError('Could not find or activate registry')

RuntimeError: Could not find or activate registry

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.6/site-packages/ldtp/__init__.py", line 257, in
<module>
    _populateNamespace(globals())
  File "/usr/lib/python2.6/site-packages/ldtp/__init__.py", line 60, in
_populateNamespace
    for method in client._client.system.listMethods():
  File "/usr/lib/python2.6/xmlrpclib.py", line 1199, in __call__
    return self.__send(self.__name, args)
  File "/usr/lib/python2.6/xmlrpclib.py", line 1489, in __request
    verbose=self.__verbose
  File "/usr/lib/python2.6/site-packages/ldtp/client.py", line 73, in request
    self, host, handler, request_body, verbose=0)
  File "/usr/lib/python2.6/xmlrpclib.py", line 1235, in request
    self.send_content(h, request_body)
  File "/usr/lib/python2.6/xmlrpclib.py", line 1349, in send_content
    connection.endheaders()
  File "/usr/lib/python2.6/httplib.py", line 892, in endheaders
    self._send_output()
  File "/usr/lib/python2.6/httplib.py", line 764, in _send_output
    self.send(msg)
  File "/usr/lib/python2.6/httplib.py", line 723, in send
    self.connect()
  File "/usr/lib/python2.6/httplib.py", line 704, in connect
    self.timeout)
  File "/usr/lib/python2.6/socket.py", line 514, in create_connection
    raise error, msg
socket.error: [Errno 146] Connection refused
>>> quit
Use quit() or Ctrl-D (i.e. EOF) to exit
>>>


5) Now open a terminal on testhost
python
import ldtp
{you'll see a few warnings about Gflags type but it works)

6) Now go back to another host and retry step 4.  You'll see that import ldtp
does work now that it has been "initialized" by a terminal running on the
desktop of testhost.

I previously logged this as https://bugzilla.gnome.org/show_bug.cgi?id=629041
and prematurely closed it when I didn't realize the conditions under which a
remote terminal import of ldtp does work.

You may wish to punt this to pyatspi.  A similar problem occurs when trying to
access the pyatspi.Registry() via a remote terminal.

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