/usr/share/pyshared/MoinMoin/userprefs/suid.py is in python-moinmoin 1.9.3-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97  | # -*- coding: iso-8859-1 -*-
"""
    MoinMoin - switch user form
    @copyright: 2001-2004 Juergen Hermann <jh@web.de>,
                2003-2007 MoinMoin:ThomasWaldmann
                2007      MoinMoin:JohannesBerg
    @license: GNU GPL, see COPYING for details.
"""
from MoinMoin import user, util, wikiutil
from MoinMoin.widget import html
from MoinMoin.userprefs import UserPrefBase
class Settings(UserPrefBase):
    def __init__(self, request):
        """ Initialize setuid settings form. """
        UserPrefBase.__init__(self, request)
        self.request = request
        self._ = request.getText
        self.cfg = request.cfg
        _ = self._
        self.title = _("Switch user")
        self.name = 'suid'
    def allowed(self):
        return (self.request.user.auth_method in self.request.cfg.auth_can_logout and
               UserPrefBase.allowed(self) and self.request.user.isSuperUser())
    def handle_form(self):
        _ = self._
        request = self.request
        form = request.form
        if form.has_key('cancel'):
            return
        if request.method != 'POST':
            return
        if not wikiutil.checkTicket(request, form['ticket']):
            return
        uid = form.get('selected_user', '')
        if not uid:
            return 'error', _("No user selected")
        theuser = user.User(request, uid, auth_method='setuid')
        if not theuser or not theuser.exists():
            return 'error', _("No user selected")
        # set valid to True so superusers can even switch
        # to disable accounts
        theuser.valid = True
        request._setuid_real_user = request.user
        # now continue as the other user
        request.user = theuser
        return  _("You can now change the settings of the selected user account; log out to get back to your account.")
    def _user_select(self):
        options = []
        users = user.getUserList(self.request)
        current_uid = self.request.user.id
        for uid in users:
            if uid != current_uid:
                name = user.User(self.request, id=uid).name
                options.append((uid, name))
        options.sort(lambda x, y: cmp(x[1].lower(), y[1].lower()))
        if not options:
            _ = self._
            self._only = True
            return _("You are the only user.")
        self._only = False
        size = min(10, len(options))
        return util.web.makeSelection('selected_user', options, current_uid, size=size)
    def create_form(self):
        """ Create the complete HTML form code. """
        _ = self._
        form = self.make_form(html.Text(_('As a superuser, you can temporarily '
                                          'assume the identity of another user.')))
        ticket = wikiutil.createTicket(self.request)
        self.make_row(_('Select User'), [self._user_select()], valign="top")
        form.append(html.INPUT(type="hidden", name="ticket", value="%s" % ticket))
        if not self._only:
            buttons = [html.INPUT(type="submit", name="select_user",
                                  value=_('Select User')),
                       ' ', ]
        else:
            buttons = []
        buttons.append(html.INPUT(type="submit", name="cancel",
                                  value=_('Cancel')))
        self.make_row('', buttons)
        return unicode(form)
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