Updated headers in python files.
This commit is contained in:
Storm Dragon
294
src/cthulhu.py
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294
src/cthulhu.py
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#!/usr/bin/env python3
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#
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# Copyright (c) 2024 Stormux
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# Copyright (c) 2010-2012 The Orca Team
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# Copyright (c) 2012 Igalia, S.L.
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# Copyright (c) 2005-2010 Sun Microsystems Inc.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., Franklin Street, Fifth Floor,
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# Boston MA 02110-1301 USA.
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#
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# Fork of Orca Screen Reader (GNOME)
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# Original source: https://gitlab.gnome.org/GNOME/orca
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import argparse
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import gi
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gi.require_version("Atspi", "2.0")
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from gi.repository import Atspi
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import os
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import signal
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import subprocess
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import sys
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import time
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def setup_paths():
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"""Configure paths for both installed and source directory execution."""
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currentDir = os.path.dirname(os.path.abspath(__file__))
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# Check if running from source
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if os.path.exists(os.path.join(currentDir, 'plugins')):
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# Running from source directory
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sys.path.insert(0, os.path.dirname(currentDir))
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pythondir = currentDir
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else:
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# Running installed
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sys.prefix = '/usr'
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pythondir = os.path.join(sys.prefix, 'lib', f'python{sys.version_info.major}.{sys.version_info.minor}', 'site-packages')
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sys.path.insert(1, pythondir)
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# Set environment variables for resource paths
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if 'CTHULHU_DATA_DIR' not in os.environ:
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if os.path.exists(os.path.join(currentDir, 'plugins')):
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os.environ['CTHULHU_DATA_DIR'] = currentDir
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else:
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os.environ['CTHULHU_DATA_DIR'] = os.path.join(sys.prefix, 'share', 'cthulhu')
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# Set up paths before importing Cthulhu modules
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setup_paths()
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from cthulhu import debug
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from cthulhu import messages
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from cthulhu import settings
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from cthulhu.ax_object import AXObject
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from cthulhu.ax_utilities import AXUtilities
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from cthulhu.cthulhu_platform import version
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class ListApps(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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desktop = AXUtilities.get_desktop()
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for app in AXObject.iter_children(desktop):
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pid = AXObject.get_process_id(app)
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try:
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name = Atspi.Accessible.get_name(app) or "(none)"
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except Exception:
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name = "[DEAD]"
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try:
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cmdline = subprocess.getoutput('cat /proc/%s/cmdline' % pid)
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except Exception:
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cmdline = '(exception encountered)'
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else:
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cmdline = cmdline.replace('\x00', ' ')
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print(time.strftime('%H:%M:%S', time.localtime()),
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' pid: %5s %-25s %s' % (pid, name, cmdline))
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parser.exit()
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class Settings(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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settingsDict = getattr(namespace, 'settings', {})
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invalid = getattr(namespace, 'invalid', [])
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for value in values.split(','):
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item = str.title(value).replace('-', '')
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try:
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test = 'enable%s' % item
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eval('settings.%s' % test)
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except AttributeError:
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try:
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test = 'show%s' % item
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eval('settings.%s' % test)
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except AttributeError:
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invalid.append(value)
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continue
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settingsDict[test] = self.const
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setattr(namespace, 'settings', settingsDict)
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setattr(namespace, 'invalid', invalid)
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class HelpFormatter(argparse.HelpFormatter):
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def __init__(self, prog, indent_increment=2, max_help_position=32,
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width=None):
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super().__init__(prog, indent_increment, max_help_position, width)
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def add_usage(self, usage, actions, groups, prefix=None):
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super().add_usage(usage, actions, groups, messages.CLI_USAGE)
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class Parser(argparse.ArgumentParser):
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def __init__(self, *args, **kwargs):
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super(Parser, self).__init__(
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epilog=messages.CLI_EPILOG, formatter_class=HelpFormatter, add_help=False)
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self.add_argument(
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"-h", "--help", action="help", help=messages.CLI_HELP)
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self.add_argument(
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"-v", "--version", action="version", version=version, help=messages.CLI_VERSION)
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self.add_argument(
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"-r", "--replace", action="store_true", help=messages.CLI_REPLACE)
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self.add_argument(
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"-s", "--setup", action="store_true", help=messages.CLI_GUI_SETUP)
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self.add_argument(
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"-l", "--list-apps", action=ListApps, nargs=0,
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help=messages.CLI_LIST_APPS)
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self.add_argument(
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"-e", "--enable", action=Settings, const=True,
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help=messages.CLI_ENABLE_OPTION, metavar=messages.CLI_OPTION)
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self.add_argument(
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"-d", "--disable", action=Settings, const=False,
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help=messages.CLI_DISABLE_OPTION, metavar=messages.CLI_OPTION)
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self.add_argument(
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"-p", "--profile", action="store",
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help=messages.CLI_LOAD_PROFILE, metavar=messages.CLI_PROFILE_NAME)
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self.add_argument(
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"-u", "--user-prefs", action="store",
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help=messages.CLI_LOAD_PREFS, metavar=messages.CLI_PREFS_DIR)
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self.add_argument(
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"--debug-file", action="store",
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help=messages.CLI_DEBUG_FILE, metavar=messages.CLI_DEBUG_FILE_NAME)
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self.add_argument(
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"--debug", action="store_true", help=messages.CLI_ENABLE_DEBUG)
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self._optionals.title = messages.CLI_OPTIONAL_ARGUMENTS
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def parse_known_args(self, *args, **kwargs):
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opts, invalid = super(Parser, self).parse_known_args(*args, **kwargs)
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try:
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invalid.extend(opts.invalid)
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except Exception:
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pass
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if invalid:
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print((messages.CLI_INVALID_OPTIONS + " ".join(invalid)))
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if opts.debug_file:
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opts.debug = True
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elif opts.debug:
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opts.debug_file = time.strftime('debug-%Y-%m-%d-%H:%M:%S.out')
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return opts, invalid
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def setProcessName(name):
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"""Attempts to set the process name to the specified name."""
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sys.argv[0] = name
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try:
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from setproctitle import setproctitle
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except ImportError:
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pass
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else:
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setproctitle(name)
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return True
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try:
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from ctypes import cdll, byref, create_string_buffer
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libc = cdll.LoadLibrary('libc.so.6')
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stringBuffer = create_string_buffer(len(name) + 1)
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stringBuffer.value = bytes(name, 'UTF-8')
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libc.prctl(15, byref(stringBuffer), 0, 0, 0)
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return True
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except Exception:
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pass
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return False
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def inGraphicalDesktop():
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"""Returns True if we are in a graphical desktop."""
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# TODO - JD: Make this desktop environment agnostic
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try:
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import gi
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gi.require_version("Gdk", "3.0")
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from gi.repository import Gdk
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display = Gdk.Display.get_default()
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except Exception:
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return False
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return display is not None
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def otherCthulhus():
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"""Returns the pid of any other instances of Cthulhu owned by this user."""
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openFile = subprocess.Popen('pgrep -u %s -x cthulhu' % os.getuid(),
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shell=True,
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stdout=subprocess.PIPE).stdout
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pids = openFile.read()
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openFile.close()
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cthulhus = [int(p) for p in pids.split()]
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pid = os.getpid()
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return [p for p in cthulhus if p != pid]
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def cleanup(sigval):
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"""Tries to clean up any other running Cthulhu instances owned by this user."""
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cthulhusToKill = otherCthulhus()
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debug.printMessage(debug.LEVEL_INFO, "INFO: Cleaning up these PIDs: %s" % cthulhusToKill)
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def onTimeout(signum, frame):
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cthulhusToKill = otherCthulhus()
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debug.printMessage(debug.LEVEL_INFO, "INFO: Timeout cleaning up: %s" % cthulhusToKill)
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for pid in cthulhusToKill:
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os.kill(pid, signal.SIGKILL)
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for pid in cthulhusToKill:
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os.kill(pid, sigval)
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signal.signal(signal.SIGALRM, onTimeout)
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signal.alarm(2)
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while otherCthulhus():
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time.sleep(0.5)
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def main():
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setProcessName('cthulhu')
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parser = Parser()
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args, invalid = parser.parse_known_args()
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if args.debug:
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debug.debugLevel = debug.LEVEL_ALL
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debug.eventDebugLevel = debug.LEVEL_OFF
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debug.debugFile = open(args.debug_file, 'w')
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if args.replace:
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cleanup(signal.SIGKILL)
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settingsDict = getattr(args, 'settings', {})
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if not inGraphicalDesktop():
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print(messages.CLI_NO_DESKTOP_ERROR)
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return 1
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debug.printMessage(debug.LEVEL_INFO, "INFO: Preparing to launch.", True)
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from cthulhu import cthulhu
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manager = cthulhu.getSettingsManager()
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if not manager:
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print(messages.CLI_SETTINGS_MANAGER_ERROR)
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return 1
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debug.printMessage(debug.LEVEL_INFO, "INFO: About to activate settings manager.", True)
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manager.activate(args.user_prefs, settingsDict)
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sys.path.insert(0, manager.getPrefsDir())
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if args.profile:
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try:
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manager.setProfile(args.profile)
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except Exception:
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print(messages.CLI_LOAD_PROFILE_ERROR % args.profile)
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manager.setProfile()
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if args.setup:
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cleanup(signal.SIGKILL)
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cthulhu.showPreferencesGUI()
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if otherCthulhus():
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print(messages.CLI_OTHER_CTHULHUS_ERROR)
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return 1
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debug.printMessage(debug.LEVEL_INFO, "INFO: About to launch Cthulhu.", True)
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return cthulhu.main()
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if __name__ == "__main__":
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sys.exit(main())
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