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'''Admin interface for dynamic reports'''
import Bcfg2.Logger
import Bcfg2.Server.Admin
import datetime
import os
import logging
import pickle
import platform
import sys
import traceback
from Bcfg2.Compat import md5
from Bcfg2 import settings
# Load django and reports stuff _after_ we know we can load settings
from django.core import management
from Bcfg2.Reporting.utils import *
project_directory = os.path.dirname(settings.__file__)
project_name = os.path.basename(project_directory)
sys.path.append(os.path.join(project_directory, '..'))
project_module = __import__(project_name, '', '', [''])
sys.path.pop()
# Set DJANGO_SETTINGS_MODULE appropriately.
os.environ['DJANGO_SETTINGS_MODULE'] = '%s.settings' % project_name
from django.db import connection, transaction
from Bcfg2.Reporting.models import Client, Interaction, \
Performance
def printStats(fn):
"""
Print db stats.
Decorator for purging. Prints database statistics after a run.
"""
def print_stats(self, *data):
start_client = Client.objects.count()
start_i = Interaction.objects.count()
start_ei = Entries_interactions.objects.count()
start_perf = Performance.objects.count()
fn(self, *data)
self.log.info("Clients removed: %s" %
(start_client - Client.objects.count()))
self.log.info("Interactions removed: %s" %
(start_i - Interaction.objects.count()))
self.log.info("Interactions->Entries removed: %s" %
(start_ei - 0))
# (start_ei - Entries_interactions.objects.count()))
self.log.info("Metrics removed: %s" %
(start_perf - Performance.objects.count()))
return print_stats
class Reports(Bcfg2.Server.Admin.Mode):
'''Admin interface for dynamic reports'''
__shorthelp__ = "Manage dynamic reports"
__longhelp__ = (__shorthelp__)
django_commands = ['dbshell', 'shell', 'syncdb', 'sqlall', 'validate']
__usage__ = ("bcfg2-admin reports [command] [options]\n"
"\n"
" Commands:\n"
" init Initialize the database\n"
" purge Purge records\n"
" --client [n] Client to operate on\n"
" --days [n] Records older then n days\n"
" --expired Expired clients only\n"
" scrub Scrub the database for duplicate reasons and orphaned entries\n"
" update Apply any updates to the reporting database\n"
"\n"
" Django commands:\n " \
+ "\n ".join(django_commands))
def __init__(self, setup):
Bcfg2.Server.Admin.Mode.__init__(self, setup)
try:
import south
except ImportError:
print "Django south is required for Reporting"
raise SystemExit(-3)
def __call__(self, args):
Bcfg2.Server.Admin.Mode.__call__(self, args)
if len(args) == 0 or args[0] == '-h':
print(self.__usage__)
raise SystemExit(0)
# FIXME - dry run
if args[0] in self.django_commands:
self.django_command_proxy(args[0])
elif args[0] == 'scrub':
self.scrub()
elif args[0] in ['init', 'update']:
if self.setup['verbose'] or self.setup['debug']:
vrb = 2
else:
vrb = 0
try:
management.call_command("syncdb", verbosity=vrb)
management.call_command("migrate", verbosity=vrb)
except:
print("Update failed: %s" % traceback.format_exc().splitlines()[-1])
raise SystemExit(-1)
elif args[0] == 'purge':
expired = False
client = None
maxdate = None
state = None
i = 1
while i < len(args):
if args[i] == '-c' or args[i] == '--client':
if client:
self.errExit("Only one client per run")
client = args[i + 1]
print(client)
i = i + 1
elif args[i] == '--days':
if maxdate:
self.errExit("Max date specified multiple times")
try:
maxdate = datetime.datetime.now() - datetime.timedelta(days=int(args[i + 1]))
except:
self.log.error("Invalid number of days: %s" % args[i + 1])
raise SystemExit(-1)
i = i + 1
elif args[i] == '--expired':
expired = True
i = i + 1
if expired:
if state:
self.log.error("--state is not valid with --expired")
raise SystemExit(-1)
self.purge_expired(maxdate)
else:
self.purge(client, maxdate, state)
else:
print("Unknown command: %s" % args[0])
@transaction.commit_on_success
def scrub(self):
''' Perform a thorough scrub and cleanup of the database '''
# Currently only reasons are a problem
try:
start_count = Reason.objects.count()
except Exception:
e = sys.exc_info()[1]
self.log.error("Failed to load reason objects: %s" % e)
return
dup_reasons = []
cmp_reasons = dict()
batch_update = []
for reason in BatchFetch(Reason.objects):
''' Loop through each reason and create a key out of the data. \
This lets us take advantage of a fast hash lookup for \
comparisons '''
id = reason.id
reason.id = None
key = md5(pickle.dumps(reason)).hexdigest()
reason.id = id
if key in cmp_reasons:
self.log.debug("Update interactions from %d to %d" \
% (reason.id, cmp_reasons[key]))
dup_reasons.append([reason.id])
batch_update.append([cmp_reasons[key], reason.id])
else:
cmp_reasons[key] = reason.id
self.log.debug("key %d" % reason.id)
self.log.debug("Done with updates, deleting dupes")
try:
cursor = connection.cursor()
cursor.executemany('update reports_entries_interactions set reason_id=%s where reason_id=%s', batch_update)
cursor.executemany('delete from reports_reason where id = %s', dup_reasons)
transaction.set_dirty()
except Exception:
ex = sys.exc_info()[1]
self.log.error("Failed to delete reasons: %s" % ex)
raise
self.log.info("Found %d dupes out of %d" % (len(dup_reasons), start_count))
# Cleanup orphans
start_count = Reason.objects.count()
Reason.prune_orphans()
self.log.info("Pruned %d Reason records" % (start_count - Reason.objects.count()))
#start_count = Entries.objects.count()
#Entries.prune_orphans()
#self.log.info("Pruned %d Entries records" % (start_count - Entries.objects.count()))
def django_command_proxy(self, command):
'''Call a django command'''
if command == 'sqlall':
django.core.management.call_command(command, 'reports')
else:
django.core.management.call_command(command)
@printStats
def purge(self, client=None, maxdate=None, state=None):
'''Purge historical data from the database'''
filtered = False # indicates whether or not a client should be deleted
if not client and not maxdate and not state:
self.errExit("Reports.prune: Refusing to prune all data")
ipurge = Interaction.objects
if client:
try:
cobj = Client.objects.get(name=client)
ipurge = ipurge.filter(client=cobj)
except Client.DoesNotExist:
self.log.error("Client %s not in database" % client)
raise SystemExit(-1)
self.log.debug("Filtering by client: %s" % client)
if maxdate:
filtered = True
if not isinstance(maxdate, datetime.datetime):
raise TypeError("maxdate is not a DateTime object")
self.log.debug("Filtering by maxdate: %s" % maxdate)
ipurge = ipurge.filter(timestamp__lt=maxdate)
if settings.DATABASES['default']['ENGINE'] == 'django.db.backends.sqlite3':
grp_limit = 100
else:
grp_limit = 1000
if state:
filtered = True
if state not in ('dirty', 'clean', 'modified'):
raise TypeError("state is not one of the following values " + \
"('dirty','clean','modified')")
self.log.debug("Filtering by state: %s" % state)
ipurge = ipurge.filter(state=state)
count = ipurge.count()
rnum = 0
try:
while rnum < count:
grp = list(ipurge[:grp_limit].values("id"))
# just in case...
if not grp:
break
Interaction.objects.filter(id__in=[x['id'] for x in grp]).delete()
rnum += len(grp)
self.log.debug("Deleted %s of %s" % (rnum, count))
except:
self.log.error("Failed to remove interactions")
(a, b, c) = sys.exc_info()
msg = traceback.format_exception(a, b, c, limit=2)[-1][:-1]
del a, b, c
self.log.error(msg)
# bulk operations bypass the Interaction.delete method
self.log.debug("Pruning orphan Performance objects")
Performance.prune_orphans()
self.log.debug("Pruning orphan Reason objects")
Reason.prune_orphans()
if client and not filtered:
'''Delete the client, ping data is automatic'''
try:
self.log.debug("Purging client %s" % client)
cobj.delete()
except:
self.log.error("Failed to delete client %s" % client)
(a, b, c) = sys.exc_info()
msg = traceback.format_exception(a, b, c, limit=2)[-1][:-1]
del a, b, c
self.log.error(msg)
@printStats
def purge_expired(self, maxdate=None):
'''Purge expired clients from the database'''
if maxdate:
if not isinstance(maxdate, datetime.datetime):
raise TypeError("maxdate is not a DateTime object")
self.log.debug("Filtering by maxdate: %s" % maxdate)
clients = Client.objects.filter(expiration__lt=maxdate)
else:
clients = Client.objects.filter(expiration__isnull=False)
for client in clients:
self.log.debug("Purging client %s" % client)
Interaction.objects.filter(client=client).delete()
client.delete()
self.log.debug("Pruning orphan Performance objects")
Performance.prune_orphans()
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