2 ## vim:set et ts=2 sw=2 ai:
3 # Send email reminders to users having sizable homedirs.
5 # Copyright (c) 2013 Philipp Kern <pkern@debian.org>
6 # Copyright (c) 2013, 2014 Peter Palfrader <peter@palfrader.org>
7 # Copyright (c) 2013 Luca Filipozzi <lfilipoz@debian.org>
9 # Permission is hereby granted, free of charge, to any person obtaining a copy
10 # of this software and associated documentation files (the "Software"), to deal
11 # in the Software without restriction, including without limitation the rights
12 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 # copies of the Software, and to permit persons to whom the Software is
14 # furnished to do so, subject to the following conditions:
16 # The above copyright notice and this permission notice shall be included in
17 # all copies or substantial portions of the Software.
19 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
27 from collections import defaultdict
28 from dsa_mq.connection import Connection
29 from dsa_mq.config import Config
31 import email.mime.text
34 from optparse import OptionParser
44 # avoid base64 encoding for utf-8
45 email.charset.add_charset('utf-8', email.charset.SHORTEST, email.charset.QP)
47 parser = OptionParser()
48 parser.add_option("-D", "--dryrun",
49 action="store_true", default=False,
52 parser.add_option("-d", "--debug",
53 action="store_true", default=False,
54 help="Enable debug output")
56 (options, args) = parser.parse_args()
57 options.section = 'dsa-homedirs'
58 options.config = '/etc/dsa/pubsub.conf'
59 config = Config(options)
61 'rabbit_userid': config.username,
62 'rabbit_password': config.password,
63 'rabbit_virtual_host': config.vhost,
64 'rabbit_hosts': ['pubsub02.debian.org', 'pubsub01.debian.org'],
69 SENDMAIL_COMMAND = ['/bin/cat']
70 RM_COMMAND = ['/bin/echo', 'Would remove']
72 SENDMAIL_COMMAND = ['/usr/sbin/sendmail', '-t', '-oi']
73 RM_COMMAND = ['/bin/rm', '-rf']
76 { 'size': 10240, 'notifyafter': 5, 'deleteafter': 40 },
77 { 'size': 1024, 'notifyafter': 10, 'deleteafter': 50 },
78 { 'size': 100, 'notifyafter': 30, 'deleteafter': 90 },
79 { 'size': 20, 'notifyafter': 90, 'deleteafter': 150 },
80 { 'size': 5, 'deleteafter': 700 }
82 EXCLUDED_USERNAMES = ['lost+found', 'debian']
83 MAIL_FROM = 'debian-admin (via Cron) <bulk@admin.debian.org>'
84 MAIL_TO = '{username}@{hostname}.debian.org'
85 MAIL_CC = 'debian-admin (bulk sink) <bulk@admin.debian.org>'
86 MAIL_REPLYTO = 'debian-admin <dsa@debian.org>'
87 MAIL_SUBJECT = 'Please clean up ~{username} on {hostname}.debian.org'
91 Thanks for your porting effort on {hostname}!
93 Please note that, on most porterboxes, /home is quite small, so please
94 remove files that you do not need anymore.
96 For your information, you last logged into {hostname} {days_ago} days
97 ago, and your home directory there is {homedir_size} MB in size.
99 If you currently do not use {hostname}, please keep ~{username} under
102 Please assist us in freeing up space by deleting schroots, also.
106 Debian System Administration Team via Cron
108 PS: A reply is not required.
111 class Error(Exception):
114 class SendmailError(Error):
117 class LastlogTimes(dict):
118 LASTLOG_STRUCT = '=L32s256s'
121 record_size = struct.calcsize(self.LASTLOG_STRUCT)
122 with open('/var/log/lastlog', 'r') as fp:
123 uid = -1 # there is one record per uid in lastlog
124 for record in iter(lambda: fp.read(record_size), ''):
125 uid += 1 # so keep incrementing uid for each record read
126 lastlog_time, _, _ = list(struct.unpack(self.LASTLOG_STRUCT, record))
128 self[pwd.getpwuid(uid).pw_name] = lastlog_time
130 # this is a normal condition
133 class HomedirSizes(dict):
135 for direntry in glob.glob('/home/*'):
136 username = os.path.basename(direntry)
138 if username in EXCLUDED_USERNAMES:
142 pwinfo = pwd.getpwnam(username)
144 if os.path.isdir(direntry):
145 logging.warning('directory %s exists on %s but there is no %s user', direntry, platform.node(), username)
148 if pwinfo.pw_dir != direntry:
149 logging.warning('home directory for %s is not %s, but that exists. confused.', username, direntry)
152 command = ['/usr/bin/du', '-ms', pwinfo.pw_dir]
153 p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
154 (stdout, stderr) = p.communicate()
155 if p.returncode != 0: # ignore errors from du
156 logging.info('%s failed:', ' '.join(command))
160 self[username] = int(stdout.split('\t')[0])
162 logging.error('could not convert size output from %s: %s', ' '.join(command), stdout)
165 class HomedirReminder(object):
167 self.lastlog_times = LastlogTimes()
168 self.homedir_sizes = HomedirSizes()
170 def notify(self, **kwargs):
171 msg = email.mime.text.MIMEText(MAIL_MESSAGE.format(**kwargs), _charset='UTF-8')
172 msg['From'] = MAIL_FROM.format(**kwargs)
173 msg['To'] = MAIL_TO.format(**kwargs)
175 msg['Cc'] = MAIL_CC.format(**kwargs)
176 if MAIL_REPLYTO != "":
177 msg['Reply-To'] = MAIL_REPLYTO.format(**kwargs)
178 msg['Subject'] = MAIL_SUBJECT.format(**kwargs)
179 msg['Precedence'] = "bulk"
180 msg['Auto-Submitted'] = "auto-generated by mail-big-homedirs"
181 p = subprocess.Popen(SENDMAIL_COMMAND, stdin=subprocess.PIPE)
182 p.communicate(msg.as_string())
183 logging.debug(msg.as_string())
184 if p.returncode != 0:
187 def remove(self, **kwargs):
189 pwinfo = pwd.getpwnam(kwargs.get('username'))
193 command = RM_COMMAND + [pwinfo.pw_dir]
194 p = subprocess.check_call(command)
197 current_time = time.time()
200 'timestamp': current_time,
201 'data': self.homedir_sizes,
202 'host': socket.gethostname()
204 conn = Connection(conf=mq_conf)
205 conn.topic_send(config.topic,
207 exchange_name=config.exchange,
210 LOG.error("Error sending: %s" % e)
215 for username, homedir_size in self.homedir_sizes.iteritems():
217 realname = pwd.getpwnam(username).pw_gecos.decode('utf-8').split(',', 1)[0]
220 lastlog_time = self.lastlog_times[username]
221 days_ago = int( (current_time - lastlog_time) / 3600 / 24 )
223 'hostname': platform.node(),
224 'username': username,
225 'realname': realname,
226 'homedir_size': homedir_size,
233 if homedir_size > x['size'] and 'notifyafter' in x and days_ago >= x['notifyafter']:
235 if homedir_size > x['size'] and 'deleteafter' in x and days_ago >= x['deleteafter']:
239 self.remove(**kwargs)
241 self.notify(**kwargs)
243 if __name__ == '__main__':
247 logging.basicConfig(level=lvl)
248 HomedirReminder().run()