OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	10/02/2024 07:52:55 PM	rwxr-xr-x
📄 __init__.py	736 bytes	08/23/2016 01:53:31 PM	rw-r--r--
📄 controller.py	2.55 KB	01/20/2017 01:59:19 AM	rw-r--r--
📁 controllers	-	10/02/2024 07:52:55 PM	rwxr-xr-x
📄 core.py	5.39 KB	03/20/2017 01:51:00 AM	rw-r--r--
📄 log.py	1.53 KB	01/20/2017 01:59:19 AM	rw-r--r--
📁 models	-	10/02/2024 07:52:55 PM	rwxr-xr-x
📄 palette.py	3.26 KB	08/23/2016 01:53:31 PM	rw-r--r--
📄 prober.py	2.3 KB	11/08/2016 11:38:01 PM	rw-r--r--
📄 signals.py	4.52 KB	01/20/2017 01:59:19 AM	rw-r--r--
📁 ui	-	10/02/2024 07:52:55 PM	rwxr-xr-x
📄 user.py	2.32 KB	01/25/2017 10:16:04 PM	rw-r--r--
📄 utils.py	5.64 KB	03/24/2017 12:28:59 AM	rw-r--r--
📄 view.py	1.53 KB	03/15/2017 11:20:58 PM	rw-r--r--

Editing: signals.py

# Copyright 2015 Canonical, Ltd.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

""" Registers all known signal emitters
"""
import urwid
import logging

log = logging.getLogger('subiquity.signals')

class SignalException(Exception):
    "Problem with a signal"

class Signal:
    known_signals = []
    signal_stack = []

def register_signals(self, signals):
        if type(signals) is list:
            self.known_signals.extend(signals)
        else:
            self.known_signals.append(signals)
        urwid.register_signal(Signal, signals)

def prev_signal(self):
        log.debug('prev_signal: before: '
                  'size={} stack={}'.format(len(self.signal_stack),
                                            self.signal_stack))
        if len(self.signal_stack) > 1:
            (current_name, *_) = self.signal_stack.pop()
            (prev_name, args, kwargs) = self.signal_stack.pop()
            log.debug('current_name={}'.format(current_name))
            log.debug('previous={}'.format(prev_name))
            while (current_name.count(':') < prev_name.count(':') or
                   current_name == prev_name):
                log.debug('get next previous')
                (prev_name, args, kwargs) = self.signal_stack.pop()
                log.debug('previous={}'.format(prev_name))

log.debug('prev_signal: after: '
                      'size={} stack={}'.format(len(self.signal_stack),
                                                self.signal_stack))

log.debug("PrevEmitter: {}, {}, {}".format(prev_name, args,
                                                       kwargs))
            self.emit_signal(prev_name, *args, **kwargs)
        else:
            log.debug('stack empty: emitting menu:welcome:main')
            # FIXME: this should be set by common
            urwid.emit_signal(self, 'menu:welcome:main')

def emit_signal(self, name, *args, **kwargs):
        # Disabled because it can reveal credentials in the arguments.
        #log.debug("Emitter: {}, {}, {}".format(name, args, kwargs))
        if name.startswith("menu:"):
            log.debug(" emit: before: "
                      "size={} stack={}".format(len(self.signal_stack),
                                                self.signal_stack))
            # only stack *menu* signals, drop signals if we've already
            # visited this level
            match = [s for s in self.signal_stack if s[0] == name]
            if len(match) > 0:
                index = self.signal_stack.index(match.pop())
                log.debug('Already visited {}, trimming stack'.format(name))
                self.signal_stack = self.signal_stack[0:index + 1]
            else:
                log.debug('New menu for stack: {}'.format(name))
                self.signal_stack.append((name, args, kwargs))

log.debug(" emit: after: "
                      "size={} stack={}".format(len(self.signal_stack),
                                                self.signal_stack))
        urwid.emit_signal(self, name, *args, **kwargs)

def connect_signal(self, name, cb, **kwargs):
        log.debug(
            "Emitter Connection: {}, {}, {}".format(name,
                                                    cb,
                                                    kwargs))
        urwid.connect_signal(self, name, cb, **kwargs)

def connect_signals(self, signal_callback):
        """ Connects a batch of signals

:param list signal_callback: List of tuples
                                     eg. ('menu:welcome:show', self.cb)
        """
        if not type(signal_callback) is list:
            raise SignalException(
                "Passed something other than a required list.")
        for sig, cb in signal_callback:
            if sig not in self.known_signals:
                self.register_signals(sig)
            self.connect_signal(sig, cb)

def __repr__(self):
        return "Known Signals: {}".format(self.known_signals)