Breaks XML-RPC plugins

[Peter]

Not 100% sure this is workfloweditor plugin's fault but with it disabled XML-RPC functions fine. This is the error thrown when RPC request comes in:

2009-09-23 02:42:44,207 Trac[main] ERROR: Internal Server Error:
Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.5-py2.6.egg/trac/web/main.py", line 444, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.5-py2.6.egg/trac/web/main.py", line 175, in dispatch
    chosen_handler)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.5-py2.6.egg/trac/web/main.py", line 295, in _pre_process_request
    chosen_handler = filter_.pre_process_request(req, chosen_handler)
  File "build/bdist.linux-i686/egg/dropbears/web_ui.py", line 18, in pre_process_request
    add_stylesheet(req, 'dropbear/dropbears.css')
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.5-py2.6.egg/trac/web/chrome.py", line 85, in add_stylesheet
    add_link(req, 'stylesheet', href(filename), mimetype=mimetype)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.5-py2.6.egg/trac/web/chrome.py", line 61, in add_link
    linkset = req.chrome.setdefault('linkset', set())
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.5-py2.6.egg/trac/web/api.py", line 195, in __getattr__
    value = self.callbacks[name](self)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.5-py2.6.egg/trac/web/chrome.py", line 489, in prepare_request
    for category, name, text in contributor.get_navigation_items(req):
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.5-py2.6.egg/trac/admin/web_ui.py", line 65, in get_navigation_items
    panels, providers = self._get_panels(req)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.5-py2.6.egg/trac/admin/web_ui.py", line 161, in _get_panels
    p = list(provider.get_admin_panels(req))
  File "build/bdist.linux-i686/egg/workfloweditor/workfloweditor_admin.py", line 32, in get_admin_panels
    locale = LocaleUtil().get_locale(req)
  File "build/bdist.linux-i686/egg/workfloweditor/api.py", line 16, in get_locale
    if (len(locale_array) > 0):
TypeError: object of type 'NoneType' has no len()

[dobesv@…]

I get the same error when I attempt to use the trac-bitten build slave:

C:\Windows\system32>bitten-slave -v -u dobesv@habitsoft.com -P .../trac/builds
Passsword:
[INFO    ] Slave launched at 2009-10-06 09:35:30
[DEBUG   ] Enabling authentication with username 'dobesv@habitsoft.com'
[DEBUG   ] Performing basic/digest authentication
[DEBUG   ] Sending HEAD request to 'https://.../trac/login'
[DEBUG   ] Server returned error 500: Internal Server Error (Traceback (most recent call last):
  File "/usr/local/lib/python2.5/site-packages/Trac-0.11.3-py2.5.egg/trac/web/api.py", line 367, in send_error
    'text/html')
  File "/usr/local/lib/python2.5/site-packages/Trac-0.11.3-py2.5.egg/trac/web/chrome.py", line 708, in render_template
    data = self.populate_data(req, data)
  File "/usr/local/lib/python2.5/site-packages/Trac-0.11.3-py2.5.egg/trac/web/chrome.py", line 618, in populate_data
    d['chrome'].update(req.chrome)
  File "/usr/local/lib/python2.5/site-packages/Trac-0.11.3-py2.5.egg/trac/web/api.py", line 194, in __getattr__
    value = self.callbacks[name](self)
  File "/usr/local/lib/python2.5/site-packages/Trac-0.11.3-py2.5.egg/trac/web/chrome.py", line 476, in prepare_request
    for category, name, text in contributor.get_navigation_items(req):
  File "/usr/local/lib/python2.5/site-packages/Trac-0.11.3-py2.5.egg/trac/admin/web_ui.py", line 64, in get_navigation_i
tems
    panels, providers = self._get_panels(req)
  File "/usr/local/lib/python2.5/site-packages/Trac-0.11.3-py2.5.egg/trac/admin/web_ui.py", line 160, in _get_panels
    p = list(provider.get_admin_panels(req))
  File "build/bdist.linux-x86_64/egg/workfloweditor/workfloweditor_admin.py", line 32, in get_admin_panels
    locale = LocaleUtil().get_locale(req)
  File "build/bdist.linux-x86_64/egg/workfloweditor/api.py", line 16, in get_locale
    if (len(locale_array) > 0):
TypeError: object of type 'NoneType' has no len()
)
[ERROR   ] HTTP Error 500: Internal Server Error
[DEBUG   ] Removing working directory c:\users\dobes\appdata\local\temp\bittenzc47pb
[INFO    ] Slave exited at 2009-10-06 09:35:33

[Simo He]

Patch fixes this bug.

[Simo He]

Duplicate of #6645

patch for fixing is here or there