def update_net(opt, ucr):
# type: (Namespace, ConfigRegistry) -> Tuple[UniventionUpdater, Optional[UCS_Version]]
dprint('Checking network repository')
try:
updater = UniventionUpdater()
nextversion = updater.release_update_available(errorsto='exception')
except RequiredComponentError:
raise
except ConfigurationError as ex:
raise UpdateError('The configured repository is unavailable: %s' %
(ex, ),
errorsource='SETTINGS')
return (updater, nextversion)
class Instance(Base):
def init(self):
MODULE.info("Initializing 'updater' module (PID = %d)" % (getpid(), ))
self._current_job = ''
self._logfile_start_line = 0
self._serial_file = Watched_File(COMPONENTS_SERIAL_FILE)
self._updates_serial = Watched_Files(UPDATE_SERIAL_FILES)
try:
self.uu = UniventionUpdater(False)
except Exception as exc: # FIXME: let it raise
MODULE.error("init() ERROR: %s" % (exc, ))
@simple_response
def query_maintenance_information(self):
ucr.load()
if ucr.is_true('license/extended_maintenance/disable_warning'):
return {'show_warning': False}
version = self.uu.get_ucs_version()
try:
url = 'http://updates.software-univention.de/download/ucs-maintenance/{}.yaml'.format(
version)
response = requests.get(url, timeout=10)
if not response.ok:
response.raise_for_status()
status = yaml.load(response.content)
if not isinstance(status, dict):
raise yaml.YAMLError(repr(status))
# the yaml file contains for maintained either false, true or extended as value.
# yaml.load converts true and false into booleans but extended into string.
_maintained_status = status.get('maintained')
maintenance_extended = _maintained_status == 'extended'
show_warning = maintenance_extended or not _maintained_status
except yaml.YAMLError as exc:
MODULE.error('The YAML format is malformed: %s' % (exc, ))
return {'show_warning': False}
except requests.exceptions.RequestException as exc:
MODULE.error("Querying maintenance information failed: %s" %
(exc, ))
return {'show_warning': False}
return {
'ucs_version': version,
'show_warning': show_warning,
'maintenance_extended': maintenance_extended,
'base_dn': ucr.get('license/base')
}
@simple_response
def poll(self):
return True
@simple_response
def query_releases(self):
"""
Returns a list of system releases suitable for the
corresponding ComboBox
"""
# be as current as possible.
self.uu.ucr_reinit()
ucr.load()
appliance_mode = ucr.is_true('server/appliance')
available_versions, blocking_components = self.uu.get_all_available_release_updates(
)
result = [{
'id': rel,
'label': 'UCS %s' % (rel, )
} for rel in available_versions]
#
# appliance_mode=no ; blocking_comp=no → add "latest version"
# appliance_mode=no ; blocking_comp=yes → no "latest version"
# appliance_mode=yes; blocking_comp=no → add "latest version"
# appliance_mode=yes; blocking_comp=yes → add "latest version"
#
if result and (appliance_mode or not blocking_components):
# UniventionUpdater returns available version in ascending order, so
# the last returned entry is the one to be flagged as 'latest' if there's
# no blocking component.
result[-1]['label'] = '%s (%s)' % (result[-1]['label'],
_('latest version'))
return result
def call_hooks(self, request):
"""
Calls the specified hooks and returns data given back by each hook
"""
def _thread(request):
result = {}
hookmanager = univention.hooks.HookManager(
HOOK_DIRECTORY) # , raise_exceptions=False
hooknames = request.options.get('hooks')
MODULE.info('requested hooks: %s' % hooknames)
for hookname in hooknames:
MODULE.info('calling hook %s' % hookname)
result[hookname] = hookmanager.call_hook(hookname)
MODULE.info('result: %r' % (result, ))
return result
thread = notifier.threads.Simple(
'call_hooks', notifier.Callback(_thread, request),
notifier.Callback(self.thread_finished_callback, request))
thread.run()
@simple_response
def updates_serial(self):
"""
Watches the three sources.list snippets for changes
"""
result = self._updates_serial.timestamp()
MODULE.info(" -> Serial for UPDATES is '%s'" % result)
return result
@simple_response
def updates_check(self):
"""
Returns the list of packages to be updated/installed
by a dist-upgrade.
"""
p0 = subprocess.Popen(['LC_ALL=C apt-get update'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
shell=True)
(stdout, stderr) = p0.communicate()
p1 = subprocess.Popen(['LC_ALL=C apt-get -u dist-upgrade -s'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
shell=True)
(stdout, stderr) = p1.communicate()
install = []
update = []
remove = []
for line in stdout.split('\n'):
# upgrade:
# Inst univention-updater [3.1.1-5] (3.1.1-6.408.200810311159 192.168.0.10)
# inst:
# Inst mc (1:4.6.1-6.12.200710211124 oxae-update.open-xchange.com)
#
# *** FIX *** the above example lines ignore the fact that there's
# some extra text (occasionally) after the last closing
# parenthesis. Until now, I've seen only a pair of empty
# brackets [], but who knows...
match = re.search('^Inst (\S+)\s+(.*?)\s*\((\S+)\s.*\)', line)
if match:
pkg = match.group(1)
old = match.group(2)
ver = match.group(3)
if old:
update.append([pkg, ver])
else:
install.append([pkg, ver])
elif line.startswith('Remv '):
l = line.split(' ')
pkg = l[1]
# i18n: The package version is unknown.
ver = _('unknown')
if len(l) > 2:
ver = l[2].replace('[', '').replace(']', '')
remove.append([pkg, ver])
return dict(
update=sorted(update),
install=sorted(install),
remove=sorted(remove),
)
@simple_response
def updates_available(self):
"""
Asks if there are package updates available. (don't get confused
by the name of the UniventionUpdater function that is called here.)
This is a seperate call since it can take an amount of time, thus
being invoked by a seperate button (and not in the background)
"""
ucr.load()
try:
# be as current as possible.
what = 'reinitializing UniventionUpdater'
self.uu.ucr_reinit()
what = 'checking update availability'
return self.uu.component_update_available()
except Exception as ex:
typ = str(type(ex)).strip('<>')
msg = '[while %s] [%s] %s' % (what, typ, str(ex))
MODULE.error(msg)
return False
def status(self, request): # TODO: remove unneeded things
"""One call for all single-value variables."""
result = {}
ucr.load()
try:
result['erratalevel'] = int(ucr.get('version/erratalevel', 0))
except ValueError:
result['erratalevel'] = 0
result['appliance_mode'] = ucr.is_true('server/appliance')
result['easy_mode'] = ucr.is_true('update/umc/updateprocess/easy',
False)
result['timestamp'] = int(time())
result['reboot_required'] = ucr.is_true('update/reboot/required',
False)
try:
# be as current as possible.
what = 'reinitializing UniventionUpdater'
self.uu.ucr_reinit()
what = 'getting UCS version'
result['ucs_version'] = self.uu.get_ucs_version()
# if nothing is returned -> convert to empty string.
what = 'querying available release updates'
try:
result[
'release_update_available'] = self.uu.release_update_available(
errorsto='exception')
except RequiredComponentError as exc:
result['release_update_available'] = exc.version
if result['release_update_available'] is None:
result['release_update_available'] = ''
what = 'querying update-blocking components'
blocking_components = self.uu.get_all_available_release_updates(
)[1]
result['release_update_blocking_components'] = ' '.join(
blocking_components or [])
what = "querying availability for easy mode"
if result['easy_mode']:
# updates/available should reflect the need for an update
easy_update_available = ucr.is_true('update/available', False)
# but dont rely on ucr! update/available is set during univention-upgrade --check
# but when was the last time this was run?
# release update
easy_update_available = easy_update_available or result[
'release_update_available']
# if no update seems necessary perform a real (expensive) check nonetheless
easy_update_available = easy_update_available or self.uu.component_update_available(
)
result['easy_update_available'] = bool(easy_update_available)
else:
result['easy_update_available'] = False
# Component counts are now part of the general 'status' data.
what = "counting components"
c_count = 0
e_count = 0
for comp in self.uu.get_all_components():
c_count = c_count + 1
if ucr.is_true('repository/online/component/%s' % (comp, ),
False):
e_count = e_count + 1
result['components'] = c_count
result['enabled'] = e_count
# HACK: the 'Updates' form polls on the serial file
# to refresh itself. Including the serial value
# into the form helps us to have a dependent field
# that can trigger the refresh of the "Releases"
# combobox and the 'package updates available' field.
result['serial'] = self._serial_file.timestamp()
except Exception as exc: # FIXME: don't catch everything
typ = str(type(exc)).strip('<>')
msg = '[while %s] [%s] %s' % (what, typ, exc)
result['message'] = msg
result['status'] = 1
MODULE.error(msg)
self.finished(request.id, [result])
@simple_response
def reboot(self):
"""
Reboots the computer. Simply invokes /sbin/reboot in the background
and returns success to the caller. The caller is prepared for
connection loss.
"""
subprocess.call(['/sbin/reboot'])
return True
@simple_response
def running(self):
"""
Returns the id (key into INSTALLERS) of a currently
running job, or the empty string if nothing is running.
"""
return self.__which_job_is_running()
@sanitize(
job=ChoicesSanitizer(INSTALLERS.keys() + [''], required=True),
count=IntegerSanitizer(default=0),
)
@simple_response
def updater_log_file(self, job, count):
"""
returns the content of the log file associated with
the job.
Argument 'count' has the same meaning as already known:
<0 ...... return timestamp of file (for polling)
0 ....... return whole file as a string list
>0 ...... ignore this many lines, return the rest of the file
*** NOTE *** As soon as we have looked for a running job at least once,
we know the job key and can associate it here.
TODO: honor a given 'job' argument
"""
job = self._current_job or job
if not job:
return
fname = INSTALLERS[job]['logfile']
if count < 0:
try:
return stat(fname)[9]
except (IOError, OSError):
return 0
# don't read complete file if we have an 'ignore' count
count += self._logfile_start_line
return self._logview(fname, -count)
def _logview(self, fname, count):
"""
Contains all functions needed to view or 'tail' an arbitrary text file.
Argument 'count' can have different values:
< 0 ... ignore this many lines, return the rest of the file
0 ..... return the whole file, split into lines.
> 0 ... return the last 'count' lines of the file. (a.k.a. tail -n <count>)
"""
lines = []
try:
with open(fname, 'rb') as fd:
for line in fd:
if (count < 0):
count += 1
else:
lines.append(line.rstrip().decode('utf-8', 'replace'))
if (count > 0) and (len(lines) > count):
lines.pop(0)
except (IOError, OSError):
pass
return lines
@sanitize(
job=ChoicesSanitizer(INSTALLERS.keys(), required=True), )
@simple_response
def updater_job_status(self, job): # TODO: remove this completely
"""Returns the status of the current/last update even if the job is not running anymore."""
result = {}
try:
with open(INSTALLERS[job]['statusfile'], 'rb') as fd:
for line in fd:
fields = line.strip().split('=')
if len(fields) == 2:
result['_%s_' % fields[0]] = fields[1]
except (IOError, OSError):
pass
result['running'] = '' != self.__which_job_is_running()
return result
@sanitize(
job=ChoicesSanitizer(INSTALLERS.keys(), required=True),
detail=StringSanitizer(r'^[A-Za-z0-9\.\- ]*$'),
)
@simple_response
def run_installer(self, job, detail=''):
"""
This is the function that invokes any kind of installer. Arguments accepted:
job ..... the main thing to do. can be one of:
'release' ...... perform a release update
'distupgrade' .. update all currently installed packages (distupgrade)
'check' ........ check what would be done for 'update' ... do we need this?
detail ....... an argument that specifies the subject of the installer:
for 'release' .... the target release number,
for all other subjects: detail has no meaning.
"""
MODULE.info("Starting function %r" % (job, ))
self._current_job = job
# remember initial lines of logfile before starting update to not show it in the frontend
logfile = INSTALLERS[job]['logfile']
try:
with open(logfile, 'rb') as fd:
self._logfile_start_line = sum(1 for line in fd)
except (IOError, OSError):
pass
command = INSTALLERS[job]['command']
if '%' in command:
command = command % (pipes.quote(detail).replace('\n', '').replace(
'\r', '').replace('\x00', ''), )
MODULE.info("Creating job: %r" % (command, ))
command = '''
/usr/share/univention-updater/disable-apache2-umc
%s < /dev/null
/usr/share/univention-updater/enable-apache2-umc --no-restart''' % (command, )
atjobs.add(command, comments=dict(lines=self._logfile_start_line))
return {'status': 0}
def __which_job_is_running(self):
# first check running at jobs
for atjob in atjobs.list(True):
for job, inst in INSTALLERS.iteritems():
cmd = inst['command'].split('%')[0]
if cmd in atjob.command:
self._current_job = job
try:
self._logfile_start_line = int(
atjob.comments.get('lines', 0))
except ValueError:
pass
return job
# no atjob found, parse process list (if univention-upgrade was started via CLI)
commands = [
('/usr/share/univention-updater/univention-updater-umc-dist-upgrade',
'distupgrade'),
('/usr/share/univention-updater/univention-updater', 'release'),
('/usr/sbin/univention-upgrade', 'distupgrade'
) # we don't know if it is a dist-upgrade or a release upgrade
]
for cmd, job in commands:
for process in psutil.process_iter():
try:
cmdline = process.cmdline() if callable(
process.cmdline) else process.cmdline
except psutil.NoSuchProcess:
pass
if cmd in cmdline:
self._current_job = job
self._logfile_start_line = 0
return job
return ''
def do_release_update(options: Namespace, checkForUpdates: bool,
silent: bool) -> bool:
updater = UniventionUpdater()
# get next release update version
dprint(silent, 'Checking for release updates: ', newline=False)
version_next = updater.release_update_available()
if not version_next:
dprint(silent, 'none')
return False
if options.updateto and UCS_Version(
options.updateto) < UCS_Version(version_next):
dprint(
silent,
'%s is available but updater has been instructed to stop at version %s.'
% (version_next, options.updateto))
return False
dprint(silent, 'found: UCS %s' % version_next)
if checkForUpdates:
return True
interactive = not (options.noninteractive or checkForUpdates)
if interactive and not readcontinue(
'Do you want to update to %s [Y|n]?' % version_next):
return False
update_status(current_version=updater.current_version,
next_version=version_next,
status='RUNNING')
dprint(silent,
'Starting update to UCS version %s at %s...' %
(version_next, time.ctime()),
debug=True)
dprint(silent, 'Starting update to UCS version %s' % (version_next))
time.sleep(1)
params = ['--silent']
if options.ignoressh:
params.append('--ignoressh')
if options.ignoreterm:
params.append('--ignoreterm')
retcode = subprocess.call([
'/usr/share/univention-updater/univention-updater', 'net',
'--updateto',
'%s' % (version_next)
] + params,
env=os.environ)
if retcode:
dprint(silent,
'exitcode of univention-updater: %s' % retcode,
debug=True)
dprint(
silent,
'ERROR: update failed. Please check /var/log/univention/updater.log\n'
)
update_status(status='FAILED', errorsource='UPDATE')
sys.exit(1)
dprint(silent,
'Update to UCS version %s finished at %s...' %
(version_next, time.ctime()),
debug=True)
return True
class Instance(Base):
def init(self) -> None:
MODULE.info("Initializing 'updater' module (PID = %d)" % (getpid(), ))
self._current_job = ''
self._logfile_start_line = 0
self._serial_file = Watched_File(COMPONENTS_SERIAL_FILE)
try:
self.uu = UniventionUpdater(False)
except Exception as exc: # FIXME: let it raise
self.uu = None
MODULE.error("init() ERROR: %s" % (exc, ))
@simple_response
def query_maintenance_information(self) -> Dict[str, Any]:
ret = self._maintenance_information()
ret.update(self._last_update())
return ret
def _last_update(self) -> Dict[str, Any]:
status_file = '/var/lib/univention-updater/univention-updater.status'
ret = {
'last_update_failed': False,
'last_update_version': None
} # type: Dict[str, Any]
try:
fstat = stat(status_file)
mtime = datetime.fromtimestamp(fstat.st_mtime)
delta = datetime.now() - mtime
if delta.days != 0: # no fresh failure
return ret
with open(status_file) as fd:
info = dict(line.strip().split('=', 1) # type: ignore
for line in fd) # type: Dict[str, str]
ret['last_update_failed'] = info.get('status') == 'FAILED'
if ret['last_update_failed']:
ret['last_update_version'] = info.get('next_version')
except (ValueError, EnvironmentError) as exc:
MODULE.error(str(exc))
return ret
def _maintenance_information(self) -> Dict[str, Any]:
default = {'show_warning': False}
if not self.uu:
return default
ucr.load()
if ucr.is_true('license/extended_maintenance/disable_warning'):
return default
version = self.uu.current_version
for _ver, data in self.uu.get_releases(version, version):
status = data.get('status', 'unmaintained')
maintenance_extended = status == 'extended'
show_warning = maintenance_extended or status != 'maintained'
return {
'ucs_version': str(version),
'show_warning': show_warning,
'maintenance_extended': maintenance_extended,
'base_dn': ucr.get('license/base'),
}
return default
@simple_response
def query_releases(self) -> List[Dict[str, str]]:
"""
Returns a list of system releases suitable for the
corresponding ComboBox
"""
# be as current as possible.
self.uu.ucr_reinit()
ucr.load()
appliance_mode = ucr.is_true('server/appliance')
available_versions, blocking_components = self.uu.get_all_available_release_updates(
)
result = [{
'id': str(rel),
'label': 'UCS %s' % (rel, )
} for rel in available_versions]
#
# appliance_mode=no ; blocking_comp=no → add "latest version"
# appliance_mode=no ; blocking_comp=yes → no "latest version"
# appliance_mode=yes; blocking_comp=no → add "latest version"
# appliance_mode=yes; blocking_comp=yes → add "latest version"
#
if result and (appliance_mode or not blocking_components):
# UniventionUpdater returns available version in ascending order, so
# the last returned entry is the one to be flagged as 'latest' if there's
# no blocking component.
result[-1]['label'] = '%s (%s)' % (result[-1]['label'],
_('latest version'))
return result
@sanitize(hooks=ListSanitizer(StringSanitizer(minimum=1), required=True))
def call_hooks(self, request: Request) -> None:
"""
Calls the specified hooks and returns data given back by each hook
"""
def _thread(request: Request) -> Dict[str, Any]:
result = {}
hookmanager = HookManager(
HOOK_DIRECTORY) # , raise_exceptions=False
hooknames = request.options.get('hooks')
MODULE.info('requested hooks: %s' % hooknames)
for hookname in hooknames:
MODULE.info('calling hook %s' % hookname)
result[hookname] = hookmanager.call_hook(hookname)
MODULE.info('result: %r' % (result, ))
return result
thread = notifier.threads.Simple(
'call_hooks', notifier.Callback(_thread, request),
notifier.Callback(self.thread_finished_callback, request))
thread.run()
@simple_response
def updates_check(self) -> Dict[str, List[Tuple[str, str]]]:
"""
Returns the list of packages to be updated/installed
by a dist-upgrade.
"""
install = []
update = []
remove = []
apt = Cache(memonly=True)
apt.update()
apt.open()
apt.clear()
apt.upgrade(dist_upgrade=True)
for pkg in apt.get_changes():
if pkg.marked_install:
install.append((pkg.name, pkg.candidate.version))
if pkg.marked_upgrade:
update.append((pkg.name, pkg.candidate.version))
if pkg.marked_delete:
remove.append((pkg.name, pkg.installed.version))
return dict(
update=sorted(update),
install=sorted(install),
remove=sorted(remove),
)
@simple_response
def updates_available(self) -> bool:
"""
Asks if there are package updates available. (don't get confused
by the name of the UniventionUpdater function that is called here.)
This is a separate call since it can take an amount of time, thus
being invoked by a separate button (and not in the background)
"""
ucr.load()
try:
# be as current as possible.
what = 'reinitializing UniventionUpdater'
self.uu.ucr_reinit()
what = 'checking update availability'
new, upgrade, removed = self.uu.component_update_get_packages()
return any((new, upgrade, removed))
except Exception as ex:
typ = str(type(ex)).strip('<>')
msg = '[while %s] [%s] %s' % (what, typ, str(ex))
MODULE.error(msg)
return False
def status(self, request: Request) -> None: # TODO: remove unneeded things
"""One call for all single-value variables."""
result = {} # type: Dict[str, Any]
ucr.load()
try:
result['erratalevel'] = int(ucr.get('version/erratalevel', 0))
except ValueError:
result['erratalevel'] = 0
result['appliance_mode'] = ucr.is_true('server/appliance')
result['timestamp'] = int(time())
result['reboot_required'] = ucr.is_true('update/reboot/required',
False)
try:
# be as current as possible.
what = 'reinitializing UniventionUpdater'
self.uu.ucr_reinit()
what = 'getting UCS version'
result['ucs_version'] = str(self.uu.current_version)
# if nothing is returned -> convert to empty string.
what = 'querying available release updates'
try:
ver = self.uu.release_update_available(errorsto='exception')
result[
'release_update_available'] = '' if ver is None else str(
ver)
except RequiredComponentError as exc:
result['release_update_available'] = exc.version
what = 'querying update-blocking components'
blocking_components = self.uu.get_all_available_release_updates(
)[1] or set()
# check apps
if result['release_update_available']:
try:
from univention.appcenter.actions import get_action
update_check = get_action('update-check')
if update_check:
blocking_apps = update_check.get_blocking_apps(
ucs_version=result['release_update_available'])
if blocking_apps:
blocking_components.update(set(blocking_apps))
except (ImportError, ValueError):
# the new univention.appcenter package is not installed.
# Cannot be a dependency as the app center depends on updater...
raise UMC_Error(
_('Error checking if installed apps are available for next UCS version.'
))
result['release_update_blocking_components'] = ' '.join(
blocking_components)
# Component counts are now part of the general 'status' data.
what = "counting components"
components = [
bool(comp) for comp in self.uu.get_components(all=True)
]
result['components'] = len(components)
result['enabled'] = sum(components)
# HACK: the 'Updates' form polls on the serial file
# to refresh itself. Including the serial value
# into the form helps us to have a dependent field
# that can trigger the refresh of the "Releases"
# combobox and the 'package updates available' field.
result['serial'] = self._serial_file.timestamp()
except Exception as exc: # FIXME: don't catch everything
raise UMC_Error("%s %s %s" % (
_('Error contacting the update server. Please check your proxy or firewall settings, if any. Or it may be a problem with your configured DNS server.'
),
_('This is the error message:'),
exc,
),
traceback=format_exc())
self.finished(request.id, [result])
@simple_response
def running(self) -> str:
"""
Returns the id (key into INSTALLERS) of a currently
running job, or the empty string if nothing is running.
"""
return self.__which_job_is_running()
@sanitize(
job=ChoicesSanitizer(list(INSTALLERS) + [''], required=True),
count=IntegerSanitizer(default=0),
)
@simple_response
def updater_log_file(self, job: str,
count: int) -> Union[None, float, List[str]]:
"""
returns the content of the log file associated with
the job.
:param job: Job name.
:param count: has the same meaning as already known:
<0 ...... return timestamp of file (for polling)
0 ....... return whole file as a string list
>0 ...... ignore this many lines, return the rest of the file
.. note::
As soon as we have looked for a running job at least once,
we know the job key and can associate it here.
TODO: honor a given 'job' argument
"""
job = self._current_job or job
if not job:
return None
fname = INSTALLERS[job]['logfile']
if count < 0:
try:
return stat(fname).st_ctime
except EnvironmentError:
return 0
# don't read complete file if we have an 'ignore' count
count += self._logfile_start_line
return self._logview(fname, -count)
def _logview(self, fname: str, count: int) -> List[str]:
"""
Contains all functions needed to view or 'tail' an arbitrary text file.
:param count: can have different values:
< 0 ... ignore this many lines, return the rest of the file
0 ..... return the whole file, split into lines.
> 0 ... return the last 'count' lines of the file. (a.k.a. tail -n <count>)
"""
lines = []
try:
with open(fname, 'rb') as fd:
for line in fd:
if (count < 0):
count += 1
else:
lines.append(line.rstrip().decode('utf-8', 'replace'))
if (count > 0) and (len(lines) > count):
lines.pop(0)
except EnvironmentError:
pass
return lines
@sanitize(
job=ChoicesSanitizer(INSTALLERS, required=True), )
@simple_response
def updater_job_status(
self, job: str) -> Dict[str, Any]: # TODO: remove this completely
"""Returns the status of the current/last update even if the job is not running anymore."""
result = {} # type: Dict[str, Any]
try:
with open(INSTALLERS[job]['statusfile'], 'r') as fd:
for line in fd:
fields = line.strip().split('=')
if len(fields) == 2:
result['_%s_' % fields[0]] = fields[1]
except EnvironmentError:
pass
result['running'] = '' != self.__which_job_is_running()
return result
@sanitize(
job=ChoicesSanitizer(INSTALLERS, required=True),
detail=StringSanitizer(r'^[A-Za-z0-9\.\- ]*$'),
)
@simple_response
def run_installer(self, job: str, detail: str = '') -> Dict[str, int]:
"""
This is the function that invokes any kind of installer. Arguments accepted:
:param job: ..... the main thing to do. can be one of:
'release' ...... perform a release update
'distupgrade' .. update all currently installed packages (distupgrade)
:param detail: ....... an argument that specifies the subject of the installer:
for 'release' .... the target release number,
for all other subjects: detail has no meaning.
"""
MODULE.info("Starting function %r" % (job, ))
self._current_job = job
spec = INSTALLERS[job]
# remember initial lines of logfile before starting update to not show it in the frontend
logfile = spec['logfile']
try:
with open(logfile, 'rb') as fd:
self._logfile_start_line = sum(1 for line in fd)
except EnvironmentError:
pass
command = spec['command']
if '%' in command:
command = command % (pipes.quote(detail).translate({
0: None,
10: None,
13: None
}), )
MODULE.info("Creating job: %r" % (command, ))
command = '''
%s
%s < /dev/null
%s''' % (spec["prejob"], command, spec["postjob"])
atjobs.add(command, comments=dict(lines=self._logfile_start_line))
return {'status': 0}
def __which_job_is_running(self) -> str:
# first check running at jobs
for atjob in atjobs.list(True):
for job, inst in INSTALLERS.items():
cmd = inst['command'].split('%')[0]
if cmd in atjob.command:
self._current_job = job
try:
self._logfile_start_line = int(
atjob.comments.get('lines', 0))
except ValueError:
pass
return job
# no atjob found, parse process list (if univention-upgrade was started via CLI)
commands = [
('/usr/share/univention-updater/univention-updater-umc-dist-upgrade',
'distupgrade'),
('/usr/share/univention-updater/univention-updater', 'release'),
('/usr/sbin/univention-upgrade', 'distupgrade'
) # we don't know if it is a dist-upgrade or a release upgrade
]
for cmd, job in commands:
for process in psutil.process_iter():
try:
cmdline = process.cmdline() if callable(
process.cmdline) else process.cmdline
except psutil.NoSuchProcess:
pass
if cmd in cmdline:
self._current_job = job
self._logfile_start_line = 0
return job
return ''