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266 lines
10 KiB
266 lines
10 KiB
import os
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import re
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import json
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import math
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import socket
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import smtplib
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from urllib.error import HTTPError
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from urllib.parse import unquote
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from collections import defaultdict
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from britney2.policies.rest import Rest
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from britney2.policies.policy import BasePolicy, PolicyVerdict
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# Recurring emails should never be more than this many days apart
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MAX_INTERVAL = 30
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API_PREFIX = 'https://api.launchpad.net/1.0/'
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USER = API_PREFIX + '~'
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# Don't send emails to these bots
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BOTS = {
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USER + 'ci-train-bot',
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USER + 'bileto-bot',
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USER + 'ubuntu-archive-robot',
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USER + 'katie',
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}
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MESSAGE = """From: Ubuntu Release Team <noreply@canonical.com>
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To: {recipients}
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X-Proposed-Migration: notice
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Subject: [proposed-migration] {source_name} {version} stuck in {series}-proposed for {age} day{plural}.
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Hi,
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{source_name} {version} needs attention.
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It has been stuck in {series}-proposed for {age} day{plural}.
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You either sponsored or uploaded this package, please investigate why it hasn't been approved for migration.
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http://people.canonical.com/~ubuntu-archive/proposed-migration/{series}/update_excuses.html#{source_name}
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https://wiki.ubuntu.com/ProposedMigration
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If you have any questions about this email, please ask them in #ubuntu-release channel on Freenode IRC.
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Regards, Ubuntu Release Team.
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"""
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def person_chooser(source):
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"""Assign blame for the current source package."""
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people = {
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source['package_signer_link'],
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source['sponsor_link'],
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source['creator_link'],
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} - {None} - BOTS
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# some bots (e.g. bileto) generate uploads that are otherwise manual. We
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# want to email the people that the bot was acting on behalf of.
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bot = source['package_signer_link'] in BOTS
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# direct uploads
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regular = not source['creator_link'] and not source['sponsor_link']
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if bot or regular:
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people.add(source['package_creator_link'])
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return people
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def address_chooser(addresses):
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"""Prefer @ubuntu and @canonical addresses."""
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first = ''
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canonical = ''
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for address in addresses:
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if address.endswith('@ubuntu.com'):
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return address
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if address.endswith('@canonical.com'):
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canonical = address
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if not first:
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first = address
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return canonical or first
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class EmailPolicy(BasePolicy, Rest):
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"""Send an email when a package has been rejected."""
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def __init__(self, options, suite_info, dry_run=False):
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super().__init__('email', options, suite_info, {'unstable'})
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self.filename = os.path.join(options.unstable, 'EmailCache')
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# Maps lp username -> email address
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self.addresses = {}
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# Dict of dicts; maps pkg name -> pkg version -> boolean
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self.emails_by_pkg = defaultdict(dict)
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# self.cache contains self.emails_by_pkg from previous run
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self.cache = {}
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self.dry_run = dry_run
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self.email_host = getattr(self.options, 'email_host', 'localhost')
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def initialise(self, britney):
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"""Load cached source ppa data"""
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super().initialise(britney)
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if os.path.exists(self.filename):
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with open(self.filename, encoding='utf-8') as data:
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self.cache = json.load(data)
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self.log("Loaded cached email data from %s" % self.filename)
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tmp = self.filename + '.new'
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if os.path.exists(tmp):
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# if we find a record on disk of emails sent from an incomplete
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# britney run, merge them in now.
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with open(tmp, encoding='utf-8') as data:
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self.cache.update(json.load(data))
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self._save_progress(self.cache)
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self.save_state()
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def _scrape_gpg_emails(self, person):
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"""Find email addresses from one person's GPG keys."""
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if person in self.addresses:
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return self.addresses[person]
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addresses = []
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try:
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gpg = self.query_lp_rest_api(person + '/gpg_keys', {})
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for key in gpg['entries']:
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details = self.query_rest_api('http://keyserver.ubuntu.com/pks/lookup', {
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'op': 'index',
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'search': '0x' + key['fingerprint'],
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'exact': 'on',
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'options': 'mr',
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})
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for line in details.splitlines():
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parts = line.split(':')
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if parts[0] == 'info':
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if int(parts[1]) != 1 or int(parts[2]) > 1:
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break
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if parts[0] == 'uid':
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flags = parts[4]
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if 'e' in flags or 'r' in flags:
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continue
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uid = unquote(parts[1])
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match = re.match(r'^.*<(.+@.+)>$', uid)
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if match:
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addresses.append(match.group(1))
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address = self.addresses[person] = address_chooser(addresses)
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return address
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except HTTPError as e:
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if e.code != 410: # suspended user
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raise
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self.log('Ignoring person %s as suspended in Launchpad' % person)
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return None
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def scrape_gpg_emails(self, people):
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"""Find email addresses from GPG keys."""
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emails = [self._scrape_gpg_emails(person) for person in (people or [])]
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return [email for email in emails if email is not None]
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def lp_get_emails(self, pkg, version):
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"""Ask LP who uploaded this package."""
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data = self.query_lp_rest_api('%s/+archive/primary' % self.options.distribution, {
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'ws.op': 'getPublishedSources',
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'distro_series': '/%s/%s' % (self.options.distribution, self.options.series),
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'exact_match': 'true',
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'order_by_date': 'true',
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'pocket': 'Proposed',
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'source_name': pkg,
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'version': version,
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})
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try:
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source = next(reversed(data['entries']))
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# IndexError means no packages in -proposed matched this name/version,
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# which is expected to happen when bileto runs britney.
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except StopIteration:
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self.log('Email getPublishedSources IndexError (%s %s)' % (pkg, version))
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return []
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return self.scrape_gpg_emails(person_chooser(source))
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def apply_policy_impl(self, email_info, suite, source_name, source_data_tdist, source_data_srcdist, excuse):
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"""Send email if package is rejected."""
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max_age = 5 if excuse.is_valid else 1
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series = self.options.series
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version = source_data_srcdist.version
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age = int(excuse.daysold) or 0
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plural = '' if age == 1 else 's'
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# an item is stuck if it's
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# - old enough
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# - not blocked
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# - not temporarily rejected (e.g. by the autopkgtest policy when tests
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# are still running)
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stuck = age >= max_age and 'block' not in excuse.reason and \
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excuse.current_policy_verdict != PolicyVerdict.REJECTED_TEMPORARILY
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if self.dry_run:
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self.log("[email dry run] Considering: %s/%s: %s" %
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(source_name, version, "stuck" if stuck else "not stuck"))
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if not stuck:
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return PolicyVerdict.PASS
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cached = self.cache.get(source_name, {}).get(version)
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try:
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emails, last_sent = cached
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# migration of older data
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last_sent = int(last_sent)
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# Find out whether we are due to send another email by calculating
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# the most recent age at which we should have sent one. A
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# sequence of doubling intervals (0 + 1 = 1, 1 + 2 = 3, 3 + 4 = 7)
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# is equivalent to 2^n-1, or 2^n + (max_age - 1) - 1.
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# 2^(floor(log2(age))) straightforwardly calculates the most
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# recent age at which we wanted to send an email.
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last_due = int(math.pow(2, int(math.log(age + 2 - max_age, 2)))
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+ max_age - 2)
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# Don't let the interval double without bounds.
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if last_due - max_age >= MAX_INTERVAL:
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last_due = int((age - max_age - MAX_INTERVAL) / MAX_INTERVAL) \
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* MAX_INTERVAL + max_age + MAX_INTERVAL
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# And don't send emails before we've reached the minimum age
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# threshold.
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if last_due < max_age:
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last_due = max_age
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except TypeError:
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# This exception happens when source_name, version never seen before
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emails = []
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last_sent = 0
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last_due = max_age
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if self.dry_run:
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self.log("[email dry run] Age %d >= threshold %d: would email: %s" %
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(age, max_age, self.lp_get_emails(source_name, version)))
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# don't update the cache file in dry run mode; we'll see all output each time
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return PolicyVerdict.PASS
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if last_sent < last_due:
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if not emails:
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emails = self.lp_get_emails(source_name, version)
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if emails:
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recipients = ', '.join(emails)
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msg = MESSAGE.format(**locals())
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try:
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self.log("%s/%s stuck for %d days, emailing %s" %
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(source_name, version, age, recipients))
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server = smtplib.SMTP(self.email_host)
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server.sendmail('noreply@canonical.com', emails, msg)
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server.quit()
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# record the age at which the mail should have been sent
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last_sent = last_due
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except socket.error as err:
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self.log("Failed to send mail! Is SMTP server running?")
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self.log(err)
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self.emails_by_pkg[source_name][version] = (emails, last_sent)
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self._save_progress(self.emails_by_pkg)
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return PolicyVerdict.PASS
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def _save_progress(self, my_data):
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"""Checkpoint after each sent mail"""
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tmp = self.filename + '.new'
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with open(tmp, 'w', encoding='utf-8') as data:
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json.dump(my_data, data)
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return tmp
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def save_state(self, britney=None):
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"""Save email notification status of all pending packages"""
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if not self.dry_run:
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try:
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os.rename(self.filename + '.new', self.filename)
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# if we haven't written any cache, don't clobber the old one
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except FileNotFoundError:
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pass
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if britney:
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self.log("Wrote email data to %s" % self.filename)
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