Current File : //lib/python3/dist-packages/apport/ui.py
'''Abstract Apport user interface.
This encapsulates the workflow and common code for any user interface
implementation (like GTK, Qt, or CLI).
'''
# Copyright (C) 2007 - 2011 Canonical Ltd.
# Author: Martin Pitt <martin.pitt@ubuntu.com>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version. See http://www.gnu.org/copyleft/gpl.html for
# the full text of the license.
import glob, sys, os.path, optparse, traceback, locale, gettext, re, io
import errno, zlib, gzip
import pwd
import subprocess, threading, webbrowser
import signal
import time
import ast
import typing
import apport, apport.fileutils, apport.REThread
import apport.crashdb
from apport import unicode_gettext as _
from apport.user_group import get_process_user_and_group
if sys.version_info.major == 2:
from ConfigParser import ConfigParser
ConfigParser # pyflakes
PY3 = False
else:
from configparser import ConfigParser
PY3 = True
__version__ = '2.20.11'
def excstr(exception):
'''Return exception message as unicode.'''
if sys.version_info.major == 2:
return str(exception).decode(locale.getpreferredencoding(), 'replace')
return str(exception)
symptom_script_dir = os.environ.get('APPORT_SYMPTOMS_DIR',
'/usr/share/apport/symptoms')
PF_KTHREAD = 0x200000
def get_pid(report):
try:
pid = re.search('Pid:\t(.*)\n', report.get('ProcStatus', '')).group(1)
return int(pid)
except (IndexError, AttributeError):
return None
def _get_env_int(
key: str, default: typing.Optional[int] = None
) -> typing.Optional[int]:
"""Get an environment variable as integer.
Return None if it doesn't exist or failed to convert to integer.
The optional second argument can specify an alternate default.
"""
try:
return int(os.environ[key])
except (KeyError, ValueError):
return default
def _get_newest_process_for_user(name: str, uid: int) -> typing.Optional[int]:
process = subprocess.run(
["pgrep", "-n", "-x", "-u", str(uid), name],
capture_output=True,
check=False,
text=True,
)
if process.returncode != 0 or not process.stdout:
return None
return int(process.stdout.strip())
def _get_users_environ(uid: int) -> dict[str, str]:
"""Find D-BUS address and XDG_DATA_DIRS for the given user.
The D-BUS address and XDG_DATA_DIRS is needed for xdg-open. It is
incredibly hard, or alternatively, unsafe to funnel it through
pkexec/env/sudo, so grab it from gvfsd.
"""
gvfsd_pid = _get_newest_process_for_user("gvfsd", uid)
if gvfsd_pid is None:
return {}
gvfsd_pid_fd = os.open(
f"/proc/{gvfsd_pid}", os.O_RDONLY | os.O_PATH | os.O_DIRECTORY
)
try:
gvfsd_env = apport.fileutils.get_process_environ(gvfsd_pid_fd)
except OSError:
return {}
finally:
os.close(gvfsd_pid_fd)
return {
key: gvfsd_env[key]
for key in ["DBUS_SESSION_BUS_ADDRESS", "XDG_DATA_DIRS"]
if key in gvfsd_env
}
def run_as_real_user(
args: list[str], *, get_user_env: bool = False, **kwargs
) -> None:
"""Call subprocess.run as real user if called via sudo/pkexec.
If we are called through pkexec/sudo, determine the real user ID and
run the command with it to get the user's web browser settings.
If get_user_env is set to True, the D-BUS address and XDG_DATA_DIRS
is grabbed from a running gvfsd and added to the process environment.
"""
uid = _get_env_int("SUDO_UID", _get_env_int("PKEXEC_UID"))
if uid is None or not get_process_user_and_group().is_root():
subprocess.run(args, check=False, **kwargs)
return
pwuid = pwd.getpwuid(uid)
gid = _get_env_int("SUDO_GID")
if gid is None:
gid = pwuid.pw_gid
env = {
k: v
for k, v in os.environ.items()
if not k.startswith("SUDO_") and k != "PKEXEC_UID"
}
if get_user_env:
env |= _get_users_environ(uid)
env["HOME"] = pwuid.pw_dir
subprocess.run(
args,
check=False,
env=env,
user=uid,
group=gid,
extra_groups=os.getgrouplist(pwuid.pw_name, gid),
**kwargs,
)
def still_running(pid):
try:
os.kill(int(pid), 0)
except OSError as e:
if e.errno == errno.ESRCH:
return False
return True
def thread_collect_info(report, reportfile, package, ui, symptom_script=None,
ignore_uninstalled=False):
'''Collect information about report.
Encapsulate calls to add_*_info() and update given report, so that this
function is suitable for threading.
ui must be a HookUI instance, it gets passed to add_hooks_info().
If reportfile is not None, the file is written back with the new data.
If symptom_script is given, it will be run first (for run_symptom()).
'''
try:
report.add_gdb_info()
except OSError:
# it's okay if gdb is not installed on the client side; we'll get stack
# traces on retracing.
pass
report.add_os_info()
if symptom_script:
symb = {}
try:
with open(symptom_script) as f:
exec(compile(f.read(), symptom_script, 'exec'), symb)
package = symb['run'](report, ui)
if not package:
apport.error('symptom script %s did not determine the affected package', symptom_script)
return
report['Symptom'] = os.path.splitext(os.path.basename(symptom_script))[0]
except StopIteration:
sys.exit(0)
except Exception:
apport.error('symptom script %s crashed:', symptom_script)
traceback.print_exc()
sys.exit(0)
if not package:
if 'ExecutablePath' in report:
package = apport.fileutils.find_file_package(report['ExecutablePath'])
else:
raise KeyError('called without a package, and report does not have ExecutablePath')
# check if the package name relates to an installed snap
snap = apport.fileutils.find_snap(package)
if snap:
report.add_snap_info(snap)
try:
report.add_package_info(package)
except ValueError:
# this happens if we are collecting information on an uninstalled
# package
# we found no package, but a snap, so lets continue
if not ignore_uninstalled and 'Snap' not in report:
raise
except SystemError as e:
report['UnreportableReason'] = excstr(e)
if 'UnreportableReason' not in report:
if report.add_hooks_info(ui):
sys.exit(0)
# check package origin; we do that after adding hooks, so that hooks have
# the chance to set a third-party CrashDB.
try:
if 'CrashDB' not in report and 'APPORT_DISABLE_DISTRO_CHECK' not in os.environ:
if 'Package' not in report and 'Snap' not in report:
report['UnreportableReason'] = _('This package does not seem to be installed correctly')
elif not apport.packaging.is_distro_package(report['Package'].split()[0]) and \
not apport.packaging.is_native_origin_package(report['Package'].split()[0]):
# TRANS: %s is the name of the operating system
report['UnreportableReason'] = _(
'This does not seem to be an official %s package. \
Please retry after updating the indexes of available packages, \
if that does not work then remove related third party packages \
and try again.') % report['DistroRelease'].split()[0]
except ValueError:
# this happens if we are collecting information on an uninstalled
# package
# we found no package, but a snap, so lets continue
if not ignore_uninstalled and 'Snap' not in report:
raise
# add title
if 'Title' not in report:
title = report.standard_title()
if title:
report['Title'] = title
# check obsolete packages
if report.get('ProblemType') == 'Crash' and 'APPORT_IGNORE_OBSOLETE_PACKAGES' not in os.environ:
old_pkgs = report.obsolete_packages()
if old_pkgs:
report['UnreportableReason'] = _('You have some obsolete package \
versions installed. Please upgrade the following packages and check if the \
problem still occurs:\n\n%s') % ', '.join(old_pkgs)
# disabled: if we have a SIGABRT without an assertion message, declare as unreportable
# if report.get('Signal') == '6' and 'AssertionMessage' not in report:
# report['UnreportableReason'] = _('The program crashed on an assertion failure, but the message could not be retrieved. Apport does not support reporting these crashes.')
if reportfile:
try:
with open(reportfile, 'ab') as f:
os.chmod(reportfile, 0)
report.write(f, only_new=True)
except IOError as e:
# this should happen very rarely; presumably a new crash report is
# being generated by a background apport instance (which will set
# the file to permissions zero while writing), while the first
# report is being processed
apport.error('Cannot update %s: %s' % (reportfile, e))
apport.fileutils.mark_report_seen(reportfile)
os.chmod(reportfile, 0o640)
class UserInterface:
'''Apport user interface API.
This provides an abstract base class for encapsulating the workflow and
common code for any user interface implementation (like GTK, Qt, or CLI).
A concrete subclass must implement all the abstract ui_* methods.
'''
def __init__(self):
'''Initialize program state and parse command line options.'''
self.gettext_domain = 'apport'
self.report = None
self.report_file = None
self.cur_package = None
self.offer_restart = False
self.specified_a_pkg = False
try:
self.crashdb = apport.crashdb.get_crashdb(None)
except ImportError as e:
# this can happen while upgrading python packages
apport.fatal('Could not import module, is a package upgrade in progress? Error: %s', str(e))
except KeyError:
apport.fatal('/etc/apport/crashdb.conf is damaged: No default database')
gettext.textdomain(self.gettext_domain)
self.parse_argv()
#
# main entry points
#
def run_crashes(self):
'''Present all currently pending crash reports.
Ask the user what to do about them, and offer to file bugs for them.
Crashes that occurred in a different desktop (logind) session than the
one that is currently running are not processed. This skips crashes
that happened during logout, which are uninteresting and confusing to
see at the next login.
Return True if at least one crash report was processed, False
otherwise.
'''
result = False
# for iterating over /var/crash (as opposed to running on or clicking
# on a particular .crash file) we offer restarting
self.offer_restart = True
if os.geteuid() == 0:
reports = apport.fileutils.get_new_system_reports()
logind_session = None
else:
reports = apport.fileutils.get_new_reports()
if not PY3:
logind_session = apport.Report.get_logind_session(os.getpid())
else:
proc_pid_fd = os.open('/proc/%s' % os.getpid(), os.O_RDONLY | os.O_PATH | os.O_DIRECTORY)
logind_session = apport.Report.get_logind_session(proc_pid_fd=proc_pid_fd)
for f in reports:
if not self.load_report(f):
continue
# Skip crashes that happened during logout, which are uninteresting
# and confusing to see at the next login. A crash happened and gets
# reported in the same session if the logind session paths agree
# and the session started before the report's "Date".
if logind_session and '_LogindSession' in self.report and \
'Date' in self.report:
# report.get_timestamp() can return None
if not self.report.get_timestamp():
continue
if logind_session[0] != self.report['_LogindSession'] or \
logind_session[1] > self.report.get_timestamp():
continue
if self.report['ProblemType'] == 'Hang':
self.finish_hang(f)
else:
self.run_crash(f)
result = True
return result
def run_crash(self, report_file, confirm=True):
'''Present and report a particular crash.
If confirm is True, ask the user what to do about it, and offer to file
a bug for it.
If confirm is False, the user will not be asked, and the crash is
reported right away.
'''
self.report_file = report_file
try:
try:
apport.fileutils.mark_report_seen(report_file)
except OSError:
# not there any more? no problem, then it won't be regarded as
# "seen" any more anyway
pass
if not self.report and not self.load_report(report_file):
return
if 'Ignore' in self.report:
return
# check for absent CoreDumps (removed if they exceed size limit)
if self.report.get('ProblemType') == 'Crash' and 'Signal' in self.report and 'CoreDump' not in self.report and 'Stacktrace' not in self.report:
subject = os.path.basename(self.report.get('ExecutablePath', _('unknown program')))
heading = _('Sorry, the program "%s" closed unexpectedly') % subject
self.ui_error_message(
_('Problem in %s') % subject,
'%s\n\n%s' % (heading, _('Your computer does not have enough free '
'memory to automatically analyze the problem '
'and send a report to the developers.')))
return
allowed_to_report = apport.fileutils.allowed_to_report()
response = self.ui_present_report_details(allowed_to_report)
if response['report'] or response['examine']:
if 'Dependencies' not in self.report:
self.collect_info()
if self.report is None:
# collect() does that on invalid reports
return
if response['examine']:
self.examine()
return
if response['restart']:
self.restart()
if response['blacklist']:
self.report.mark_ignore()
try:
if response['remember']:
self.remember_send_report(response['report'])
# use try/expect for python2 support. Old reports (generated pre-apport 2.20.10-0ubuntu4)
# may not have the remember key and can be loaded afterwards (or after dist-upgrade)
except KeyError:
pass
if not response['report']:
return
# We don't want to send crashes to the crash database for binaries
# that changed since the crash happened. See LP: #1039220 for
# details.
if '_MarkForUpload' in self.report and \
self.report['_MarkForUpload'] != 'False':
apport.fileutils.mark_report_upload(report_file)
# We check for duplicates and unreportable crashes here, rather
# than before we show the dialog, as we want to submit these to the
# crash database, but not Launchpad.
if self.crashdb.accepts(self.report):
# FIXME: This behaviour is not really correct, but necessary as
# long as we only support a single crashdb and have whoopsie
# hardcoded. Once we have multiple crash dbs, we need to check
# accepts() earlier, and not even present the data if none of
# the DBs wants the report. See LP#957177 for details.
if self.handle_duplicate():
return
if self.check_unreportable():
return
self.file_report()
except IOError as e:
# fail gracefully if file is not readable for us
if e.errno in (errno.EPERM, errno.EACCES):
self.ui_error_message(_('Invalid problem report'),
_('You are not allowed to access this problem report.'))
sys.exit(1)
elif e.errno == errno.ENOSPC:
self.ui_error_message(_('Error'),
_('There is not enough disk space available to process this report.'))
sys.exit(1)
else:
self.ui_error_message(_('Invalid problem report'), e.strerror)
sys.exit(1)
except OSError as e:
# fail gracefully on ENOMEM
if e.errno == errno.ENOMEM:
apport.fatal('Out of memory, aborting')
else:
raise
def finish_hang(self, f):
'''Finish processing a hanging application after the core pipe handler
has handed the report back.
This will signal to whoopsie that the report needs to be uploaded.
'''
apport.fileutils.mark_report_upload(f)
apport.fileutils.mark_report_seen(f)
def run_hang(self, pid):
'''Report an application hanging.
This will first present a dialog containing the information it can
collect from the running application (everything but the trace) with
the option of terminating or restarting the application, optionally
reporting that this error occurred.
A SIGABRT will then be sent to the process and a series of
noninteractive processes will collect the remaining information and
mark the report for uploading.
'''
self.report = apport.Report('Hang')
if not self.options.pid:
self.ui_error_message(_('No PID specified'),
_('You need to specify a PID. See --help for more information.'))
return False
try:
self.report.add_proc_info(pid)
except ValueError as e:
if str(e) == 'invalid process':
self.ui_error_message(_('Invalid PID'),
_('The specified process ID does not exist.'))
sys.exit(1)
elif str(e) == 'not accessible':
self.ui_error_message(_('Not your PID'),
_('The specified process ID does not belong to you.'))
sys.exit(1)
self.report.add_package_info()
path = self.report.get('ExecutablePath', '')
self.cur_package = apport.fileutils.find_file_package(path)
self.report.add_os_info()
allowed_to_report = apport.fileutils.allowed_to_report()
response = self.ui_present_report_details(allowed_to_report,
modal_for=pid)
if response['report']:
apport.fileutils.mark_hanging_process(self.report, pid)
os.kill(int(pid), signal.SIGABRT)
else:
os.kill(int(pid), signal.SIGKILL)
if response['restart']:
self.wait_for_pid(pid)
self.restart()
def wait_for_pid(self, pid):
'''waitpid() does not work for non-child processes. Query the process
state in a loop, waiting for "no such process."
'''
while True:
try:
os.kill(int(pid), 0)
except OSError as e:
if e.errno == errno.ESRCH:
break
else:
raise
time.sleep(1)
def kill_segv(self, pid):
os.kill(int(pid), signal.SIGSEGV)
def run_report_bug(self, symptom_script=None):
'''Report a bug.
If a pid is given on the command line, the report will contain runtime
debug information. Either a package or a pid must be specified; if none
is given, show a list of symptoms.
If a symptom script is given, this will be run first (used by
run_symptom()).
'''
if not self.options.package and not self.options.pid and \
not symptom_script:
if self.run_symptoms():
return True
else:
self.ui_error_message(_('No package specified'),
_('You need to specify a package or a PID. See --help for more information.'))
return False
self.report = apport.Report('Bug')
# if PID is given, add info
if self.options.pid:
try:
proc_pid_fd = None
if PY3:
proc_pid_fd = os.open('/proc/%s' % self.options.pid, os.O_RDONLY | os.O_PATH | os.O_DIRECTORY)
stat_file = os.open('stat', os.O_RDONLY, dir_fd=proc_pid_fd)
else:
stat_file = '/proc/%s/stat' % self.options.pid
with io.open(stat_file) as f:
stat = f.read().split()
flags = int(stat[8])
if flags & PF_KTHREAD:
# this PID is a kernel thread
self.options.package = 'linux'
else:
self.report.add_proc_info(pid=self.options.pid, proc_pid_fd=proc_pid_fd)
except (ValueError, IOError, OSError) as e:
if hasattr(e, 'errno'):
# silently ignore nonexisting PIDs; the user must not close the
# application prematurely
if e.errno == errno.ENOENT:
return False
elif e.errno == errno.EACCES:
self.ui_error_message(_('Permission denied'),
_('The specified process does not belong to you. Please run this program as the process owner or as root.'))
return False
self.ui_error_message(_('Invalid PID'),
_('The specified process ID does not belong to a program.'))
return False
else:
self.report.add_proc_environ()
if self.options.package:
self.options.package = self.options.package.strip()
# "Do what I mean" for filing against "linux"
if self.options.package == 'linux':
self.cur_package = apport.packaging.get_kernel_package()
else:
self.cur_package = self.options.package
try:
self.collect_info(symptom_script)
except ValueError as e:
if 'package' in str(e) and 'does not exist' in str(e):
if not self.cur_package:
self.ui_error_message(_('Invalid problem report'),
_('Symptom script %s did not determine an affected package') % symptom_script)
else:
self.ui_error_message(_('Invalid problem report'),
_('Package %s does not exist') % self.cur_package)
return False
else:
raise
if self.check_unreportable():
return
self.add_extra_tags()
if self.handle_duplicate():
return True
# not useful for bug reports, and has potentially sensitive information
try:
del self.report['ProcCmdline']
except KeyError:
pass
if self.options.save:
try:
savefile = os.path.expanduser(self.options.save)
if savefile.endswith(".gz"):
with gzip.open(savefile, 'wb') as f:
self.report.write(f)
else:
with open(os.path.expanduser(self.options.save), 'wb') as f:
self.report.write(f)
except (IOError, OSError) as e:
self.ui_error_message(_('Cannot create report'), excstr(e))
else:
# show what's being sent
allowed_to_report = True
response = self.ui_present_report_details(allowed_to_report)
if response['report']:
self.file_report()
return True
def run_update_report(self):
'''Update an existing bug with locally collected information.'''
# avoid irrelevant noise
if not self.crashdb.can_update(self.options.update_report):
self.ui_error_message(_('Updating problem report'),
_('You are not the reporter or subscriber of this '
'problem report, or the report is a duplicate or already '
'closed.\n\nPlease create a new report using "apport-bug".'))
return False
is_reporter = self.crashdb.is_reporter(self.options.update_report)
if not is_reporter:
r = self.ui_question_yesno(
_('You are not the reporter of this problem report. It '
'is much easier to mark a bug as a duplicate of another '
'than to move your comments and attachments to a new bug.\n\n'
'Subsequently, we recommend that you file a new bug report '
'using "apport-bug" and make a comment in this bug about '
'the one you file.\n\n'
'Do you really want to proceed?'))
if not r:
return False
# list of affected source packages
self.report = apport.Report('Bug')
if self.options.package:
pkgs = [self.options.package.strip()]
else:
pkgs = self.crashdb.get_affected_packages(self.options.update_report)
info_collected = False
for p in pkgs:
# print('Collecting apport information for source package %s...' % p)
self.cur_package = p
self.report['SourcePackage'] = p
self.report['Package'] = p # no way to find this out
# we either must have the package installed or a source package hook
# available to collect sensible information
try:
apport.packaging.get_version(p)
except ValueError:
if not os.path.exists(os.path.join(apport.report._hook_dir, 'source_%s.py' % p)):
print('Package %s not installed and no hook available, ignoring' % p)
continue
self.collect_info(ignore_uninstalled=True)
info_collected = True
if not info_collected:
self.ui_info_message(_('Updating problem report'),
_('No additional information collected.'))
return False
self.report.add_user_info()
self.report.add_proc_environ()
self.add_extra_tags()
# delete the uninteresting keys
del self.report['Date']
try:
del self.report['SourcePackage']
except KeyError:
pass
if len(self.report) == 0:
self.ui_info_message(_('Updating problem report'),
_('No additional information collected.'))
return False
# show what's being sent
allowed_to_report = True
response = self.ui_present_report_details(allowed_to_report)
if response['report']:
self.crashdb.update(self.options.update_report, self.report,
'apport information', change_description=is_reporter,
attachment_comment='apport information')
return True
return False
def run_symptoms(self):
'''Report a bug from a list of available symptoms.
Return False if no symptoms are available.
'''
scripts = glob.glob(os.path.join(symptom_script_dir, '*.py'))
symptom_names = []
symptom_descriptions = []
for script in scripts:
# scripts with an underscore can be used for private libraries
if os.path.basename(script).startswith('_'):
continue
symb = {}
try:
with open(script) as f:
exec(compile(f.read(), script, 'exec'), symb)
except Exception:
apport.error('symptom script %s is invalid', script)
traceback.print_exc()
continue
if 'run' not in symb:
apport.error('symptom script %s does not define run() function', script)
continue
symptom_names.append(os.path.splitext(os.path.basename(script))[0])
symptom_descriptions.append(symb.get('description', symptom_names[-1]))
if not symptom_names:
return False
symptom_descriptions, symptom_names = \
zip(*sorted(zip(symptom_descriptions, symptom_names)))
symptom_descriptions = list(symptom_descriptions)
symptom_names = list(symptom_names)
symptom_names.append(None)
symptom_descriptions.append('Other problem')
ch = self.ui_question_choice(_('What kind of problem do you want to report?'),
symptom_descriptions, False)
if ch is not None:
symptom = symptom_names[ch[0]]
if symptom:
self.run_report_bug(os.path.join(symptom_script_dir, symptom + '.py'))
else:
return False
return True
def run_symptom(self):
'''Report a bug with a symptom script.'''
script = os.path.join(symptom_script_dir, self.options.symptom + '.py')
if not os.path.exists(script):
self.ui_error_message(_('Unknown symptom'),
_('The symptom "%s" is not known.') % self.options.symptom)
return
self.run_report_bug(script)
def run_argv(self):
'''Call appopriate run_* method according to command line arguments.
Return True if at least one report has been processed, and False
otherwise.
'''
if self.options.symptom:
self.run_symptom()
return True
elif self.options.hanging:
self.run_hang(self.options.pid)
return True
elif self.options.filebug:
return self.run_report_bug()
elif self.options.update_report is not None:
return self.run_update_report()
elif self.options.version:
print(__version__)
return True
elif self.options.crash_file:
try:
self.run_crash(self.options.crash_file, False)
except OSError as e:
self.ui_error_message(_('Invalid problem report'), excstr(e))
return True
elif self.options.window:
if os.getenv('XDG_SESSION_TYPE') == 'wayland':
self.ui_error_message(_('Cannot create report'),
_('The window option cannot be used on '
'Wayland.\n\nPlease find the window\'s '
'process ID and then run \'ubuntu-bug '
'<process ID>\'.'
'\n\nThe process ID can be found '
'by running the System Monitor application. '
'In the Processes tab, scroll until you '
'find the correct application. The process '
'ID is the number listed in the ID column.'))
return True
self.ui_info_message('', _('After closing this message '
'please click on an application window to report a problem about it.'))
xprop = subprocess.Popen(['xprop', '_NET_WM_PID'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(out, err) = xprop.communicate()
if xprop.returncode == 0:
try:
self.options.pid = int(out.split()[-1])
except ValueError:
self.ui_error_message(_('Cannot create report'),
_('xprop failed to determine process ID of the window'))
return True
return self.run_report_bug()
else:
self.ui_error_message(_('Cannot create report'),
_('xprop failed to determine process ID of the window') + '\n\n' + err)
return True
else:
return self.run_crashes()
#
# methods that implement workflow bits
#
def parse_argv_update(self):
'''Parse command line options when being invoked in update mode.
Return (options, args).
'''
optparser = optparse.OptionParser(_('%prog <report number>'))
optparser.add_option('-p', '--package',
help=_('Specify package name.'))
optparser.add_option('--tag', action='append', default=[],
help=_('Add an extra tag to the report. Can be specified multiple times.'))
(self.options, self.args) = optparser.parse_args()
if len(self.args) != 1 or not self.args[0].isdigit():
optparser.error('You need to specify a report number to update')
sys.exit(1)
self.options.update_report = int(self.args[0])
self.options.symptom = None
self.options.filebug = False
self.options.crash_file = None
self.options.version = None
self.options.hanging = False
self.args = []
def parse_argv(self):
'''Parse command line options.
If a single argument is given without any options, this tries to "do
what I mean".
'''
# invoked in update mode?
if len(sys.argv) > 0:
if 'APPORT_INVOKED_AS' in os.environ:
sys.argv[0] = os.path.join(os.path.dirname(sys.argv[0]),
os.path.basename(os.environ['APPORT_INVOKED_AS']))
cmd = sys.argv[0]
if cmd.endswith('-update-bug') or cmd.endswith('-collect'):
self.parse_argv_update()
return
optparser = optparse.OptionParser(_('%prog [options] [symptom|pid|package|program path|.apport/.crash file]'))
optparser.add_option('-f', '--file-bug', action='store_true',
dest='filebug', default=False,
help=_('Start in bug filing mode. Requires --package and an optional --pid, or just a --pid. If neither is given, display a list of known symptoms. (Implied if a single argument is given.)'))
optparser.add_option('-w', '--window', action='store_true', default=False,
help=_('Click a window as a target for filing a problem report.'))
optparser.add_option('-u', '--update-bug', type='int', dest='update_report',
help=_('Start in bug updating mode. Can take an optional --package.'))
optparser.add_option('-s', '--symptom', metavar='SYMPTOM',
help=_('File a bug report about a symptom. (Implied if symptom name is given as only argument.)'))
optparser.add_option('-p', '--package',
help=_('Specify package name in --file-bug mode. This is optional if a --pid is specified. (Implied if package name is given as only argument.)'))
optparser.add_option('-P', '--pid', type='int',
help=_('Specify a running program in --file-bug mode. If this is specified, the bug report will contain more information. (Implied if pid is given as only argument.)'))
optparser.add_option('--hanging', action='store_true', default=False,
help=_('The provided pid is a hanging application.'))
optparser.add_option('-c', '--crash-file', metavar='PATH',
help=_('Report the crash from given .apport or .crash file instead of the pending ones in %s. (Implied if file is given as only argument.)') % apport.fileutils.report_dir)
optparser.add_option('--save', metavar='PATH',
help=_('In bug filing mode, save the collected information into a file instead of reporting it. This file can then be reported later on from a different machine.'))
optparser.add_option('--tag', action='append', default=[],
help=_('Add an extra tag to the report. Can be specified multiple times.'))
optparser.add_option('-v', '--version', action='store_true',
help=_('Print the Apport version number.'))
if len(sys.argv) > 0 and cmd.endswith('-bug'):
for o in ('-f', '-u', '-s', '-p', '-P', '-c'):
optparser.get_option(o).help = optparse.SUPPRESS_HELP
(self.options, self.args) = optparser.parse_args()
# mutually exclusive arguments
if self.options.update_report:
if self.options.filebug or self.options.window or self.options.symptom \
or self.options.pid or self.options.crash_file or self.options.save:
optparser.error('-u/--update-bug option cannot be used together with options for a new report')
# "do what I mean" for zero or one arguments
if len(sys.argv) == 0:
return
# no argument: default to "show pending crashes" except when called in
# bug mode
# NOTE: uses sys.argv, since self.args if empty for all the options,
# e.g. "-v" or "-u $BUG"
if len(sys.argv) == 1 and cmd.endswith('-bug'):
self.options.filebug = True
return
# one argument: guess "file bug" mode by argument type
if len(self.args) != 1:
return
# symptom?
if os.path.exists(os.path.join(symptom_script_dir, self.args[0] + '.py')):
self.options.filebug = True
self.options.symptom = self.args[0]
self.args = []
# .crash/.apport file?
elif self.args[0].endswith('.crash') or self.args[0].endswith('.apport'):
self.options.crash_file = self.args[0]
self.args = []
# PID?
elif self.args[0].isdigit():
self.options.filebug = True
self.options.pid = self.args[0]
self.args = []
# executable?
elif '/' in self.args[0]:
if self.args[0].startswith('/snap/bin'):
# see if the snap has the same name as the executable
snap = apport.fileutils.find_snap(self.args[0].split('/')[-1])
if not snap:
optparser.error('%s is provided by a snap. No contact address has been provided; visit the forum at https://forum.snapcraft.io/ for help.' % self.args[0])
elif snap.get("contact", ""):
optparser.error('%s is provided by a snap published by %s. Contact them via %s for help.' % (self.args[0], snap["developer"], snap["contact"]))
else:
optparser.error('%s is provided by a snap published by %s. No contact address has been provided; visit the forum at https://forum.snapcraft.io/ for help.' % (self.args[0], snap["developer"]))
sys.exit(1)
else:
pkg = apport.packaging.get_file_package(self.args[0])
if not pkg:
optparser.error('%s does not belong to a package.' % self.args[0])
sys.exit(1)
self.args = []
self.options.filebug = True
self.options.package = pkg
# otherwise: package name
else:
self.options.filebug = True
self.specified_a_pkg = True
self.options.package = self.args[0]
self.args = []
def format_filesize(self, size):
'''Format the given integer as humanly readable and i18n'ed file size.'''
if size < 1000000:
return locale.format('%.1f', size / 1000.) + ' KB'
if size < 1000000000:
return locale.format('%.1f', size / 1000000.) + ' MB'
return locale.format('%.1f', size / float(1000000000)) + ' GB'
def get_complete_size(self):
'''Return the size of the complete report.'''
# report wasn't loaded, so count manually
size = 0
for k in self.report:
if self.report[k]:
try:
# if we have a compressed value, take its size, but take
# base64 overhead into account
size += len(self.report[k].gzipvalue) * 8 / 6
except AttributeError:
size += len(self.report[k])
return size
def get_reduced_size(self):
'''Return the size of the reduced report.'''
size = 0
for k in self.report:
if k != 'CoreDump':
if self.report[k]:
try:
# if we have a compressed value, take its size, but take
# base64 overhead into account
size += len(self.report[k].gzipvalue) * 8 / 6
except AttributeError:
size += len(self.report[k])
return size
def can_examine_locally(self):
'''Check whether to offer the "Examine locally" button.
This will be true if the report has a core dump, apport-retrace is
installed and a terminal is available (see ui_run_terminal()).
'''
if not self.report or 'CoreDump' not in self.report:
return False
try:
if subprocess.call(['which', 'apport-retrace'],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT) != 0:
return False
except OSError:
return False
try:
return self.ui_run_terminal(None)
except NotImplementedError:
return False
def restart(self):
'''Reopen the crashed application.'''
assert 'ProcCmdline' in self.report
if os.fork() == 0:
os.setsid()
os.execlp('sh', 'sh', '-c', self.report.get('RespawnCommand', self.report['ProcCmdline']))
sys.exit(1)
def examine(self):
'''Locally examine crash report.'''
response = self.ui_question_choice(
_('This will launch apport-retrace in a terminal window to examine the crash.'),
[_('Run gdb session'),
_('Run gdb session without downloading debug symbols'),
# TRANSLATORS: %s contains the crash report file name
_('Update %s with fully symbolic stack trace') % self.report_file,
],
False)
if response is None:
return
retrace_with_download = 'apport-retrace -S system -C %s -v ' % os.path.expanduser(
'~/.cache/apport/retrace')
retrace_no_download = 'apport-retrace '
filearg = "'" + self.report_file.replace("'", "'\\''") + "'"
cmds = {
0: retrace_with_download + '--gdb ' + filearg,
1: retrace_no_download + '--gdb ' + filearg,
2: retrace_with_download + '--output ' + filearg + ' ' + filearg,
}
self.ui_run_terminal(cmds[response[0]])
def remember_send_report(self, send_report):
'''Put whoopsie in auto or never mode'''
if send_report:
send_report = "true"
else:
send_report = "false"
try:
subprocess.check_output(['/usr/bin/gdbus', 'call', '-y',
'-d', 'com.ubuntu.WhoopsiePreferences',
'-o', '/com/ubuntu/WhoopsiePreferences',
'-m', 'com.ubuntu.WhoopsiePreferences.SetReportCrashes', send_report])
subprocess.check_output(['/usr/bin/gdbus', 'call', '-y',
'-d', 'com.ubuntu.WhoopsiePreferences',
'-o', '/com/ubuntu/WhoopsiePreferences',
'-m', 'com.ubuntu.WhoopsiePreferences.SetAutomaticallyReportCrashes', 'true'])
except (OSError, subprocess.CalledProcessError) as e:
self.ui_error_message(_("Can't remember send report status settings"), '%s\n\n%s' % (
_("Saving crash reporting state failed. Can't set auto or never reporting mode."),
excstr(e)))
def check_report_crashdb(self):
'''Process reports' CrashDB field, if present'''
if 'CrashDB' not in self.report:
return True
# specification?
if self.report['CrashDB'].lstrip().startswith('{'):
try:
spec = ast.literal_eval(self.report['CrashDB'])
assert isinstance(spec, dict)
assert 'impl' in spec
except Exception as e:
self.report['UnreportableReason'] = 'A package hook defines an invalid crash database definition:\n%s\n%s' % (self.report['CrashDB'], e)
return False
try:
self.crashdb = apport.crashdb.load_crashdb(None, spec)
except (ImportError, KeyError):
self.report['UnreportableReason'] = 'A package hook wants to send this report to the crash database "%s" which does not exist.' % self.report['CrashDB']
else:
# DB name
try:
self.crashdb = apport.crashdb.get_crashdb(None, self.report['CrashDB'])
except (ImportError, KeyError):
self.report['UnreportableReason'] = 'A package hook wants to send this report to the crash database "%s" which does not exist.' % self.report['CrashDB']
return False
return True
def collect_info(self, symptom_script=None, ignore_uninstalled=False,
on_finished=None):
'''Collect additional information.
Call all the add_*_info() methods and display a progress dialog during
this.
In particular, this adds OS, package and gdb information and checks bug
patterns.
If a symptom script is given, this will be run first (used by
run_symptom()).
'''
self.report['_MarkForUpload'] = 'True'
# check if we already ran (we might load a processed report), skip if so
if (self.report.get('ProblemType') == 'Crash' and 'Stacktrace' in self.report) or (self.report.get('ProblemType') != 'Crash' and 'Dependencies' in self.report):
if on_finished:
on_finished()
return
# ensure that the crashed program is still installed:
if self.report.get('ProblemType') == 'Crash':
exe_path = self.report.get('ExecutablePath', '')
if not os.path.exists(exe_path):
msg = _('This problem report applies to a program which is not installed any more.')
if exe_path:
msg = '%s (%s)' % (msg, self.report['ExecutablePath'])
self.report['UnreportableReason'] = msg
if on_finished:
on_finished()
return
if 'InterpreterPath' in self.report:
if not os.path.exists(self.report['InterpreterPath']):
msg = _('This problem report applies to a program which is not installed any more.')
self.report['UnreportableReason'] = '%s (%s)' % (msg, self.report['InterpreterPath'])
if on_finished:
on_finished()
return
# check if binary changed since the crash happened
if 'ExecutablePath' in self.report and 'ExecutableTimestamp' in self.report:
orig_time = int(self.report['ExecutableTimestamp'])
del self.report['ExecutableTimestamp']
cur_time = int(os.stat(self.report['ExecutablePath']).st_mtime)
if orig_time != cur_time:
self.report['_MarkForUpload'] = 'False'
self.report['UnreportableReason'] = (
_('The problem happened with the program %s which changed '
'since the crash occurred.') % self.report['ExecutablePath'])
return
if not self.cur_package and 'ExecutablePath' not in self.report \
and not symptom_script:
# this happens if we file a bug without specifying a PID or a
# package
self.report.add_os_info()
else:
# since this might take a while, create separate threads and
# display a progress dialog.
self.ui_start_info_collection_progress()
# only use a UI for asking questions if the crash db will accept
# the report
if self.crashdb.accepts(self.report):
hookui = HookUI(self)
else:
hookui = None
if 'Stacktrace' not in self.report:
# save original environment, in case hooks change it
orig_env = os.environ.copy()
icthread = apport.REThread.REThread(target=thread_collect_info,
name='thread_collect_info',
args=(self.report, self.report_file, self.cur_package,
hookui, symptom_script, ignore_uninstalled))
icthread.start()
while icthread.is_alive():
self.ui_pulse_info_collection_progress()
if hookui:
try:
hookui.process_event()
except KeyboardInterrupt:
sys.exit(1)
icthread.join()
# restore original environment
os.environ.clear()
os.environ.update(orig_env)
try:
icthread.exc_raise()
except (IOError, EOFError, zlib.error) as e:
# can happen with broken core dumps
self.report['UnreportableReason'] = '%s\n\n%s' % (
_('This problem report is damaged and cannot be processed.'),
repr(e))
self.report['_MarkForUpload'] = 'False'
except ValueError: # package does not exist
if 'UnreportableReason' not in self.report:
self.report['UnreportableReason'] = _('This report is about a package that is not installed.')
self.report['_MarkForUpload'] = 'False'
except Exception as e:
apport.error(repr(e))
self.report['UnreportableReason'] = _('An error occurred while attempting to '
'process this problem report:') + '\n\n' + str(e)
self.report['_MarkForUpload'] = 'False'
# ask for target, if snap and deb package are installed
if 'Snap' in self.report and 'Package' in self.report:
if '(not installed)' in self.report['Package']:
# choose snap automatically, if deb package is not installed
res = [0]
else:
res = self.ui_question_choice(_('You have two versions of this application installed, which one do you want to report a bug against?'), [
_('%s snap') % self.report['Snap'],
_('%s deb package') % self.report['Package']
], False)
# bug report is about the snap, clean deb package info
if res == [0]:
del self.report['Package']
if 'PackageArchitecture' in self.report:
del self.report['PackageArchitecture']
if 'SourcePackage' in self.report:
del self.report['SourcePackage']
# bug report is about the deb package, clean snap info
elif res == [1]:
del self.report['Snap']
if 'SnapSource' in self.report:
del self.report['SnapSource']
if 'SnapTags' in self.report:
del self.report['SnapTags']
else:
self.ui_stop_info_collection_progress()
sys.exit(0)
return
# append snap tags, if this report is about the snap
if 'Snap' in self.report and 'SnapTags' in self.report:
current_tags = self.report.get('Tags', '')
if current_tags:
current_tags += ' '
self.report['Tags'] = current_tags + self.report['SnapTags']
del self.report['SnapTags']
# show a hint if we cannot auto report a snap bug via 'SnapSource'
if 'Snap' in self.report and 'SnapSource' not in self.report and 'UnreportableReason' not in self.report and self.specified_a_pkg:
snap = apport.fileutils.find_snap(self.cur_package)
if snap.get("contact", ""):
self.report['UnreportableReason'] = _('%s is provided by a snap published by %s. Contact them via %s for help.') % (snap["name"], snap["developer"], snap["contact"])
else:
self.report['UnreportableReason'] = _('%s is provided by a snap published by %s. No contact address has been provided; visit the forum at https://forum.snapcraft.io/ for help.') % (snap["name"], snap["developer"])
self.report['_MarkForUpload'] = 'False'
if 'UnreportableReason' in self.report or not self.check_report_crashdb():
self.ui_stop_info_collection_progress()
if on_finished:
on_finished()
return
# check bug patterns
if self.report.get('ProblemType') == 'KernelCrash' or self.report.get('ProblemType') == 'KernelOops' or 'Package' in self.report:
bpthread = apport.REThread.REThread(target=self.report.search_bug_patterns,
args=(self.crashdb.get_bugpattern_baseurl(),))
bpthread.start()
while bpthread.is_alive():
self.ui_pulse_info_collection_progress()
try:
bpthread.join(0.1)
except KeyboardInterrupt:
sys.exit(1)
try:
bpthread.exc_raise()
except (IOError, EOFError, zlib.error) as e:
# can happen with broken gz values
self.report['UnreportableReason'] = '%s\n\n%s' % (
_('This problem report is damaged and cannot be processed.'),
repr(e))
if bpthread.return_value():
self.report['_KnownReport'] = bpthread.return_value()
# check crash database if problem is known
if self.report.get('ProblemType') != 'Bug':
known_thread = apport.REThread.REThread(target=self.crashdb.known,
args=(self.report,))
known_thread.start()
while known_thread.is_alive():
self.ui_pulse_info_collection_progress()
try:
known_thread.join(0.1)
except KeyboardInterrupt:
sys.exit(1)
known_thread.exc_raise()
val = known_thread.return_value()
if val is not None:
if val is True:
self.report['_KnownReport'] = '1'
else:
self.report['_KnownReport'] = val
# anonymize; needs to happen after duplicate checking, otherwise we
# might damage the stack trace
anonymize_thread = apport.REThread.REThread(target=self.report.anonymize)
anonymize_thread.start()
while anonymize_thread.is_alive():
self.ui_pulse_info_collection_progress()
try:
anonymize_thread.join(0.1)
except KeyboardInterrupt:
sys.exit(1)
anonymize_thread.exc_raise()
self.ui_stop_info_collection_progress()
# check that we were able to determine package names
if 'UnreportableReason' not in self.report:
if ((('SourcePackage' not in self.report and 'Dependencies' not in self.report) or
(not self.report.get('ProblemType', '').startswith('Kernel') and
'Package' not in self.report)) and ('SnapSource' not in self.report and 'Snap' not in self.report)):
self.ui_error_message(_('Invalid problem report'),
_('Could not determine the package or source package name.'))
# TODO This is not called consistently, is it really needed?
self.ui_shutdown()
sys.exit(1)
if on_finished:
on_finished()
def open_url(self, url):
'''Open the given URL in a new browser window.
Display an error dialog if everything fails.
'''
(r, w) = os.pipe()
if os.fork() > 0:
os.close(w)
(pid, status) = os.wait()
if status:
title = _('Unable to start web browser')
error = _('Unable to start web browser to open %s.' % url)
message = os.fdopen(r).readline()
if message:
error += '\n' + message
self.ui_error_message(title, error)
try:
os.close(r)
except OSError:
pass
return
os.setsid()
os.close(r)
try:
try:
run_as_real_user(["xdg-open", url], get_user_env=True)
except OSError:
# fall back to webbrowser
webbrowser.open(url, new=True, autoraise=True)
sys.exit(0)
except Exception as e:
os.write(w, str(e))
sys.exit(1)
os._exit(0)
def file_report(self):
'''Upload the current report and guide the user to the reporting web page.'''
# FIXME: This behaviour is not really correct, but necessary as
# long as we only support a single crashdb and have whoopsie
# hardcoded. Once we have multiple crash dbs, we need to check
# accepts() earlier, and not even present the data if none of
# the DBs wants the report. See LP#957177 for details.
if not self.crashdb.accepts(self.report):
return
# drop PackageArchitecture if equal to Architecture
if self.report.get('PackageArchitecture') == self.report.get('Architecture'):
try:
del self.report['PackageArchitecture']
except KeyError:
pass
# StacktraceAddressSignature is redundant and does not need to clutter
# the database
try:
del self.report['StacktraceAddressSignature']
except KeyError:
pass
global __upload_progress
__upload_progress = None
def progress_callback(sent, total):
global __upload_progress
__upload_progress = float(sent) / total
# drop internal/uninteresting keys, that start with "_"
for k in list(self.report):
if k.startswith('_'):
del self.report[k]
self.ui_start_upload_progress()
upthread = apport.REThread.REThread(target=self.crashdb.upload,
args=(self.report, progress_callback))
upthread.start()
while upthread.is_alive():
self.ui_set_upload_progress(__upload_progress)
try:
upthread.join(0.1)
upthread.exc_raise()
except KeyboardInterrupt:
sys.exit(1)
except apport.crashdb.NeedsCredentials as e:
message = _('Please enter your account information for the '
'%s bug tracking system')
data = self.ui_question_userpass(message % excstr(e))
if data is not None:
user, password = data
self.crashdb.set_credentials(user, password)
upthread = apport.REThread.REThread(target=self.crashdb.upload,
args=(self.report, progress_callback))
upthread.start()
except (TypeError, SyntaxError, ValueError):
raise
except Exception as e:
self.ui_error_message(_('Network problem'),
'%s\n\n%s' % (
_('Cannot connect to crash database, please check your Internet connection.'),
excstr(e)))
return
upthread.exc_raise()
ticket = upthread.return_value()
self.ui_stop_upload_progress()
url = self.crashdb.get_comment_url(self.report, ticket)
if url:
self.open_url(url)
def load_report(self, path):
'''Load report from given path and do some consistency checks.
This might issue an error message and return False if the report cannot
be processed, otherwise self.report is initialized and True is
returned.
'''
try:
self.report = apport.Report()
with open(path, 'rb') as f:
self.report.load(f, binary='compressed')
if 'ProblemType' not in self.report:
raise ValueError('Report does not contain "ProblemType" field')
except MemoryError:
self.report = None
self.ui_error_message(_('Memory exhaustion'),
_('Your system does not have enough memory to process this crash report.'))
return False
except IOError as e:
self.report = None
self.ui_error_message(_('Invalid problem report'), e.strerror)
return False
except (TypeError, ValueError, AssertionError, zlib.error) as e:
self.report = None
self.ui_error_message(_('Invalid problem report'),
'%s\n\n%s' % (
_('This problem report is damaged and cannot be processed.'),
repr(e)))
return False
if 'Package' in self.report:
self.cur_package = self.report['Package'].split()[0]
else:
self.cur_package = apport.fileutils.find_file_package(self.report.get('ExecutablePath', ''))
return True
def check_unreportable(self):
'''Check if the current report is unreportable.
If so, display an info message and return True.
'''
if not self.crashdb.accepts(self.report):
return False
if 'UnreportableReason' in self.report:
if type(self.report['UnreportableReason']) == bytes:
self.report['UnreportableReason'] = self.report['UnreportableReason'].decode('UTF-8')
if 'Package' in self.report:
title = _('Problem in %s') % self.report['Package'].split()[0]
else:
title = ''
self.ui_info_message(title, _('The problem cannot be reported:\n\n%s') %
self.report['UnreportableReason'])
return True
return False
def get_desktop_entry(self):
'''Return a .desktop info dictionary for the current report.
Return None if report cannot be associated to a .desktop file.
'''
if 'DesktopFile' in self.report and os.path.exists(self.report['DesktopFile']):
desktop_file = self.report['DesktopFile']
else:
try:
desktop_file = apport.fileutils.find_package_desktopfile(self.cur_package)
except ValueError:
return None
if not desktop_file:
return None
if PY3:
cp = ConfigParser(interpolation=None, strict=False)
kwargs = {'encoding': 'UTF-8'}
else:
cp = ConfigParser()
kwargs = {}
try:
cp.read(desktop_file, **kwargs)
except Exception as e:
if 'onfig' in str(e.__class__) and 'arser' in str(e.__class__):
sys.stderr.write('Warning! %s is broken: %s\n' % (desktop_file, str(e)))
return None
else:
raise
if not cp.has_section('Desktop Entry'):
return None
result = dict(cp.items('Desktop Entry'))
if 'name' not in result:
return None
return result
def handle_duplicate(self):
'''Check if current report matches a bug pattern.
If so, tell the user about it, open the existing bug in a browser, and
return True.
'''
if not self.crashdb.accepts(self.report):
return False
if '_KnownReport' not in self.report:
return False
# if we have an URL, open it; otherwise this is just a marker that we
# know about it
if self.report['_KnownReport'].startswith('http'):
self.ui_info_message(_('Problem already known'),
_('This problem was already reported in the bug report displayed \
in the web browser. Please check if you can add any further information that \
might be helpful for the developers.'))
self.open_url(self.report['_KnownReport'])
else:
self.ui_info_message(_('Problem already known'),
_('This problem was already reported to developers. Thank you!'))
return True
def add_extra_tags(self):
'''Add extra tags to report specified with --tags on CLI.'''
assert self.report
if self.options.tag:
tags = self.report.get('Tags', '')
if tags:
tags += ' '
self.report['Tags'] = tags + ' '.join(self.options.tag)
#
# abstract UI methods that must be implemented in derived classes
#
def ui_present_report_details(self, allowed_to_report=True, modal_for=None):
'''Show details of the bug report.
Return the action and options as a dictionary:
- Valid keys are: report the crash ('report'), restart
the crashed application ('restart'), or blacklist further crashes
('blacklist').
'''
raise NotImplementedError('this function must be overridden by subclasses')
def ui_info_message(self, title, text):
'''Show an information message box with given title and text.'''
raise NotImplementedError('this function must be overridden by subclasses')
def ui_error_message(self, title, text):
'''Show an error message box with given title and text.'''
raise NotImplementedError('this function must be overridden by subclasses')
def ui_start_info_collection_progress(self):
'''Open a indefinite progress bar for data collection.
This tells the user to wait while debug information is being
collected.
'''
raise NotImplementedError('this function must be overridden by subclasses')
def ui_pulse_info_collection_progress(self):
'''Advance the data collection progress bar.
This function is called every 100 ms.
'''
raise NotImplementedError('this function must be overridden by subclasses')
def ui_stop_info_collection_progress(self):
'''Close debug data collection progress window.'''
raise NotImplementedError('this function must be overridden by subclasses')
def ui_start_upload_progress(self):
'''Open progress bar for data upload.
This tells the user to wait while debug information is being uploaded.
'''
raise NotImplementedError('this function must be overridden by subclasses')
def ui_set_upload_progress(self, progress):
'''Update data upload progress bar.
Set the progress bar in the debug data upload progress window to the
given ratio (between 0 and 1, or None for indefinite progress).
This function is called every 100 ms.
'''
raise NotImplementedError('this function must be overridden by subclasses')
def ui_stop_upload_progress(self):
'''Close debug data upload progress window.'''
raise NotImplementedError('this function must be overridden by subclasses')
def ui_shutdown(self):
'''Called right before terminating the program.
This can be used for for cleaning up.
'''
pass
def ui_run_terminal(self, command):
'''Run command in, or check for a terminal window.
If command is given, run command in a terminal window; raise an exception
if terminal cannot be opened.
If command is None, merely check if a terminal application is available
and can be launched.
'''
raise NotImplementedError('this function must be overridden by subclasses')
#
# Additional UI dialogs; these are not required by Apport itself, but can
# be used by interactive package hooks
#
def ui_question_yesno(self, text):
'''Show a yes/no question.
Return True if the user selected "Yes", False if selected "No" or
"None" on cancel/dialog closing.
'''
raise NotImplementedError('this function must be overridden by subclasses')
def ui_question_choice(self, text, options, multiple):
'''Show an question with predefined choices.
options is a list of strings to present. If multiple is True, they
should be check boxes, if multiple is False they should be radio
buttons.
Return list of selected option indexes, or None if the user cancelled.
If multiple == False, the list will always have one element.
'''
raise NotImplementedError('this function must be overridden by subclasses')
def ui_question_file(self, text):
'''Show a file selector dialog.
Return path if the user selected a file, or None if cancelled.
'''
raise NotImplementedError('this function must be overridden by subclasses')
def ui_question_userpass(self, message):
'''Request username and password from user.
message is the text to be presented to the user when requesting for
username and password information.
Return a tuple (username, password), or None if cancelled.
'''
raise NotImplementedError('this function must be overridden by subclasses')
class HookUI:
'''Interactive functions which can be used in package hooks.
This provides an interface for package hooks which need to ask interactive
questions. Directly passing the UserInterface instance to the hooks needs
to be avoided, since we need to call the UI methods in a different thread,
and also don't want hooks to be able to poke in the UI.
'''
def __init__(self, ui):
'''Create a HookUI object.
ui is the UserInterface instance to wrap.
'''
self.ui = ui
# variables for communicating with the UI thread
self._request_event = threading.Event()
self._response_event = threading.Event()
self._request_fn = None
self._request_args = None
self._response = None
#
# API for hooks
#
def information(self, text):
'''Show an information with OK/Cancel buttons.
This can be used for asking the user to perform a particular action,
such as plugging in a device which does not work.
'''
return self._trigger_ui_request('ui_info_message', '', text)
def yesno(self, text):
'''Show a yes/no question.
Return True if the user selected "Yes", False if selected "No" or
"None" on cancel/dialog closing.
'''
return self._trigger_ui_request('ui_question_yesno', text)
def choice(self, text, options, multiple=False):
'''Show an question with predefined choices.
options is a list of strings to present. If multiple is True, they
should be check boxes, if multiple is False they should be radio
buttons.
Return list of selected option indexes, or None if the user cancelled.
If multiple == False, the list will always have one element.
'''
return self._trigger_ui_request('ui_question_choice', text, options, multiple)
def file(self, text):
'''Show a file selector dialog.
Return path if the user selected a file, or None if cancelled.
'''
return self._trigger_ui_request('ui_question_file', text)
#
# internal API for inter-thread communication
#
def _trigger_ui_request(self, fn, *args):
'''Called by HookUi functions in info collection thread.'''
# only one at a time
assert not self._request_event.is_set()
assert not self._response_event.is_set()
assert self._request_fn is None
self._response = None
self._request_fn = fn
self._request_args = args
self._request_event.set()
self._response_event.wait()
self._request_fn = None
self._response_event.clear()
return self._response
def process_event(self):
'''Called by GUI thread to check and process hook UI requests.'''
# sleep for 0.1 seconds to wait for events
self._request_event.wait(0.1)
if not self._request_event.is_set():
return
assert not self._response_event.is_set()
self._request_event.clear()
self._response = getattr(self.ui, self._request_fn)(*self._request_args)
self._response_event.set()
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