src/buildservice/mirrors.py

   1 #!/usr/bin/python
   2
   3 import datetime
   4 import logging
   5 import math
   6 import socket
   7 import time
   8 import tornado.httpclient
   9 import urlparse
  10
  11 from . import base
  12 from . import logs
  13
  14 log = logging.getLogger("mirrors")
  15 log.propagate = 1
  16
  17 from .decorators import lazy_property
  18
  19 class Mirrors(base.Object):
  20         def __iter__(self):
  21                 res = self.db.query("SELECT * FROM mirrors \
  22                         WHERE deleted IS FALSE ORDER BY hostname")
  23
  24                 mirrors = []
  25                 for row in res:
  26                         mirror = Mirror(self.backend, row.id, data=row)
  27                         mirrors.append(mirror)
  28
  29                 return iter(mirrors)
  30
  31         def _get_mirror(self, query, *args):
  32                 res = self.db.get(query, *args)
  33
  34                 if res:
  35                         return Mirror(self.backend, res.id, data=res)
  36
  37         def create(self, hostname, path="", owner=None, contact=None, user=None):
  38                 mirror = self._get_mirror("INSERT INTO mirrors(hostname, path, owner, contact) \
  39                         VALUES(%s, %s, %s, %s) RETURNING *", hostname, path, owner, contact)
  40
  41                 # Log creation
  42                 mirror.log("created", user=user)
  43
  44                 return mirror
  45
  46         def get_by_id(self, id):
  47                 return self._get_mirror("SELECT * FROM mirrors WHERE id = %s", id)
  48
  49         def get_by_hostname(self, hostname):
  50                 return self._get_mirror("SELECT * FROM mirrors \
  51                         WHERE hostname = %s AND deleted IS FALSE", hostname)
  52
  53         def get_for_location(self, address):
  54                 country_code = self.backend.geoip.guess_from_address(address)
  55
  56                 # Cannot return any good mirrors if location is unknown
  57                 if not country_code:
  58                         return []
  59
  60                 mirrors = []
  61
  62                 # Walk through all mirrors
  63                 for mirror in self:
  64                         if mirror.country_code == country_code:
  65                                 mirrors.append(mirror)
  66
  67                         # XXX needs to search for nearby countries
  68
  69                 return mirrors
  70
  71         def get_history(self, limit=None, offset=None, mirror=None, user=None):
  72                 query = "SELECT * FROM mirrors_history"
  73                 args  = []
  74
  75                 conditions = []
  76
  77                 if mirror:
  78                         conditions.append("mirror_id = %s")
  79                         args.append(mirror.id)
  80
  81                 if user:
  82                         conditions.append("user_id = %s")
  83                         args.append(user.id)
  84
  85                 if conditions:
  86                         query += " WHERE %s" % " AND ".join(conditions)
  87
  88                 query += " ORDER BY time DESC"
  89
  90                 if limit:
  91                         if offset:
  92                                 query += " LIMIT %s,%s"
  93                                 args  += [offset, limit,]
  94                         else:
  95                                 query += " LIMIT %s"
  96                                 args  += [limit,]
  97
  98                 entries = []
  99                 for entry in self.db.query(query, *args):
 100                         entry = logs.MirrorLogEntry(self.pakfire, entry)
 101                         entries.append(entry)
 102
 103                 return entries
 104
 105         def check(self, **kwargs):
 106                 """
 107                         Runs the mirror check for all mirrors
 108                 """
 109                 for mirror in self:
 110                         with self.db.transaction():
 111                                 mirror.check(**kwargs)
 112
 113
 114 class Mirror(base.DataObject):
 115         table = "mirrors"
 116
 117         def __eq__(self, other):
 118                 if isinstance(other, self.__class__):
 119                         return self.id == other.id
 120
 121         def log(self, action, user=None):
 122                 user_id = None
 123                 if user:
 124                         user_id = user.id
 125
 126                 self.db.execute("INSERT INTO mirrors_history(mirror_id, action, user_id, time) \
 127                         VALUES(%s, %s, %s, NOW())", self.id, action, user_id)
 128
 129         def set_hostname(self, hostname):
 130                 self._set_attribute("hostname", hostname)
 131
 132         hostname = property(lambda self: self.data.hostname, set_hostname)
 133
 134         def set_deleted(self, deleted):
 135                 self._set_attribute("deleted", deleted)
 136
 137         deleted = property(lambda s: s.data.deleted, set_deleted)
 138
 139         @property
 140         def path(self):
 141                 return self.data.path
 142
 143         def set_path(self, path):
 144                 self._set_attribute("path", path)
 145
 146         path = property(lambda self: self.data.path, set_path)
 147
 148         @property
 149         def url(self):
 150                 return self.make_url()
 151
 152         def make_url(self, path=""):
 153                 url = "%s://%s%s" % (
 154                         "https" if self.supports_https else "http",
 155                         self.hostname,
 156                         self.path
 157                 )
 158
 159                 if path.startswith("/"):
 160                         path = path[1:]
 161
 162                 return urlparse.urljoin(url, path)
 163
 164         def set_supports_https(self, supports_https):
 165                 self._set_attribute("supports_https", supports_https)
 166
 167         supports_https = property(lambda s: s.data.supports_https, set_supports_https)
 168
 169         def set_owner(self, owner):
 170                 self._set_attribute("owner", owner)
 171
 172         owner = property(lambda self: self.data.owner or "", set_owner)
 173
 174         def set_contact(self, contact):
 175                 self._set_attribute("contact", contact)
 176
 177         contact = property(lambda self: self.data.contact or "", set_contact)
 178
 179         def check(self, connect_timeout=10, request_timeout=10):
 180                 log.info("Running mirror check for %s" % self.hostname)
 181
 182                 client = tornado.httpclient.HTTPClient()
 183
 184                 # Get URL for .timestamp
 185                 url = self.make_url(".timestamp")
 186                 log.debug("  Fetching %s..." % url)
 187
 188                 # Record start time
 189                 time_start = time.time()
 190
 191                 http_status = None
 192                 last_sync_at = None
 193                 status = "OK"
 194
 195                 # XXX needs to catch connection resets, DNS errors, etc.
 196
 197                 try:
 198                         response = client.fetch(url,
 199                                 connect_timeout=connect_timeout,
 200                                 request_timeout=request_timeout)
 201
 202                         # We expect the response to be an integer
 203                         # which holds the timestamp of the last sync
 204                         # in seconds since epoch UTC
 205                         try:
 206                                 timestamp = int(response.body)
 207                         except ValueError:
 208                                 raise
 209
 210                         # Convert to datetime
 211                         last_sync_at = datetime.datetime.utcfromtimestamp(timestamp)
 212
 213                         # Must have synced within 24 hours
 214                         now = datetime.datetime.utcnow()
 215                         if now - last_sync_at >= datetime.timedelta(hours=24):
 216                                 status = "OUTOFSYNC"
 217
 218                 except tornado.httpclient.HTTPError as e:
 219                         http_status = e.code
 220                         status = "ERROR"
 221
 222                 finally:
 223                         response_time = time.time() - time_start
 224
 225                 # Log check
 226                 self.db.execute("INSERT INTO mirrors_checks(mirror_id, response_time, \
 227                         http_status, last_sync_at, status) VALUES(%s, %s, %s, %s, %s)",
 228                         self.id, response_time, http_status, last_sync_at, status)
 229
 230         @lazy_property
 231         def last_check(self):
 232                 res = self.db.get("SELECT * FROM mirrors_checks \
 233                         WHERE mirror_id = %s ORDER BY timestamp DESC LIMIT 1", self.id)
 234
 235                 return res
 236
 237         @property
 238         def status(self):
 239                 if self.last_check:
 240                         return self.last_check.status
 241
 242         @property
 243         def average_response_time(self):
 244                 res = self.db.get("SELECT AVG(response_time) AS response_time \
 245                         FROM mirrors_checks WHERE mirror_id = %s \
 246                                 AND timestamp >= NOW() - '24 hours'::interval", self.id)
 247
 248                 return res.response_time
 249
 250         @property
 251         def address(self):
 252                 return socket.gethostbyname(self.hostname)
 253
 254         @lazy_property
 255         def country_code(self):
 256                 return self.backend.geoip.guess_from_address(self.address) or "UNKNOWN"
 257
 258         def get_history(self, *args, **kwargs):
 259                 kwargs["mirror"] = self
 260
 261                 return self.pakfire.mirrors.get_history(*args, **kwargs)