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1# Copyright 2018 The Chromium OS Authors. All rights reserved.
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4
5import datetime
6import logging
7
8from autotest_lib.client.bin import utils
9from autotest_lib.client.common_lib import error
10from autotest_lib.client.common_lib.cros import chrome
11from autotest_lib.client.cros.update_engine import nebraska_wrapper
12from autotest_lib.client.cros.update_engine import update_engine_test
13
14class autoupdate_EOL(update_engine_test.UpdateEngineTest):
15    """Tests end of life (EOL) behaviour."""
16    version = 1
17
18    _EXPECTED_FINAL_TITLE = 'Final software update'
19    _DAYS_BEFORE_EOL_START_WARNING = 180
20    # Value within {} expected to be number of days since epoch.
21    _EXPECTED_EOL_DATE_TEMPLATE = 'EOL_DATE={}'
22    # Value within {} expected to be the month and year.
23    _EXPECTED_WARNING_TITLE = 'Updates end {}'
24    _UNIX_EPOCH = datetime.datetime(1970, 1, 1)
25
26
27    def _get_expected_eol_date(self, eol_date):
28        """Figure out the expected eol date."""
29        return self._UNIX_EPOCH + datetime.timedelta(eol_date)
30
31
32    def _check_eol_info(self):
33        """Checks update_engines eol status."""
34        result = utils.run(
35            [self._UPDATE_ENGINE_CLIENT_CMD, '--eol_status']).stdout.strip()
36        if self._EXPECTED_EOL_DATE not in result:
37            raise error.TestFail('Expected date %s. Actual: %s' %
38                                 (self._EXPECTED_EOL_DATE, result))
39
40
41    def _check_eol_notification(self, eol_date):
42        """Checks that we are showing an EOL notification to the user."""
43        expected_eol_date = self._get_expected_eol_date(eol_date)
44        expected_warning_begins_date = (expected_eol_date
45                                        - datetime.timedelta(
46                                          self._DAYS_BEFORE_EOL_START_WARNING))
47
48        expected_final_title = self._EXPECTED_FINAL_TITLE
49        expected_warning_title = (self._EXPECTED_WARNING_TITLE.
50            format(expected_eol_date.strftime("%B %Y")))
51
52        def find_notification(expected_title):
53            """Helper to find notification."""
54            notifications = self._cr.get_visible_notifications()
55            return any([n['title'] == expected_title
56                        for n in (notifications or [])])
57
58        def check_eol_notifications():
59            """Checks if correct notification is shown."""
60            final_notification = find_notification(expected_final_title)
61            warning_notification = find_notification(expected_warning_title)
62
63            now = datetime.datetime.utcnow()
64            if expected_eol_date <= now:
65                return final_notification and not warning_notification
66            elif expected_warning_begins_date <= now:
67                return not final_notification and warning_notification
68            return not final_notification and not warning_notification
69
70        utils.poll_for_condition(condition=lambda: check_eol_notifications(),
71                                 desc='End of Life Notification UI passed',
72                                 timeout=5, sleep_interval=1)
73
74
75    def _check_eol_settings(self, eol_date):
76        """Check that the messages about EOL in Settings are correct."""
77        tab = self._cr.browser.tabs[0]
78        tab.Navigate('chrome://os-settings/help/details')
79        tab.WaitForDocumentReadyStateToBeComplete()
80        eol_js = '''
81            settings.AboutPageBrowserProxyImpl.getInstance().getEndOfLifeInfo()
82        '''
83        eol_promise = tab.EvaluateJavaScript(eol_js, promise=True)
84        expected_eol_date = self._get_expected_eol_date(eol_date)
85        eol_msg = ('This device will get automatic software and security '
86                   'updates until')
87        if expected_eol_date <= datetime.datetime.utcnow():
88            eol_msg = ('This device stopped getting automatic software and '
89                       'security updates in')
90        if eol_msg not in eol_promise['aboutPageEndOfLifeMessage']:
91            raise error.TestFail('"%s" not found in Settings.' % eol_msg)
92
93
94    def run_once(self, eol_date):
95        """
96        Checks that DUT behaves correctly in EOL scenarios.
97
98        @param eol_date: the days from epoch value passed along to
99                         NanoOmahaDevServer placed within the _eol_date tag
100                         in the Omaha response.
101
102        """
103        self._EXPECTED_EOL_DATE = \
104            self._EXPECTED_EOL_DATE_TEMPLATE.format(eol_date)
105
106        # Start a Nebraska server to return a response with eol entry.
107        with nebraska_wrapper.NebraskaWrapper(
108            log_dir=self.resultsdir) as nebraska:
109            # Try to update. It should fail with noupdate.
110            try:
111                self._check_for_update(
112                    nebraska.get_update_url(eol_date=eol_date, no_update=True),
113                    wait_for_completion=True)
114            except error.CmdError:
115                logging.info('Update failed as expected.')
116
117            self._check_eol_info()
118            with chrome.Chrome(autotest_ext=True, logged_in=True) as cr:
119                self._cr = cr
120                self._check_eol_notification(eol_date)
121                self._check_eol_settings(eol_date)
122