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ScoDoc/sco_dump_db.py
IDK aefd14b420 refactoring: notesdb usage
2021-02-03 22:00:41 +01:00

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# -*- mode: python -*-
# -*- coding: utf-8 -*-
##############################################################################
#
# Gestion scolarite IUT
#
# Copyright (c) 1999 - 2021 Emmanuel Viennet. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Emmanuel Viennet emmanuel.viennet@viennet.net
#
##############################################################################
"""Dump base de données pour debug et support technique
Le principe est le suivant:
1- S'il existe une base en cours d'anonymisation, s'arrête et affiche un msg d'erreur l'utilisateur,
qui peut décider de la supprimer.
2- ScoDoc lance un script qui duplique la base (la copie de SCORT devient ANORT)
- (si elle existe deja, s'arrête)
createdb -E UTF-8 ANORT
pg_dump SCORT | psql ANORT
3- ScoDoc lance le script d'anonymisation config/anonymize_db.py qui:
- vide ou anonymise certaines colonnes
- dump cette base modifiée
- supprime cette base.
4- La copie dump anonymisé est uploadée.
"""
import fcntl
import subprocess
import requests
from email.MIMEMultipart import ( # pylint: disable=no-name-in-module,import-error
MIMEMultipart,
)
from email.MIMEText import MIMEText # pylint: disable=no-name-in-module,import-error
from email.MIMEBase import MIMEBase # pylint: disable=no-name-in-module,import-error
from email.Header import Header # pylint: disable=no-name-in-module,import-error
from email import Encoders # pylint: disable=no-name-in-module,import-error
import notesdb as ndb
from sco_utils import *
from notes_log import log
from sco_exceptions import ScoValueError
SCO_DUMP_LOCK = "/tmp/scodump.lock"
def sco_dump_and_send_db(context, REQUEST=None):
"""Dump base de données du département courant et l'envoie anonymisée pour debug"""
H = [context.sco_header(REQUEST, page_title="Assistance technique")]
# get currect (dept) DB name:
cursor = ndb.SimpleQuery(context, "SELECT current_database()", {})
db_name = cursor.fetchone()[0]
ano_db_name = "ANO" + db_name
# Lock
try:
x = open(SCO_DUMP_LOCK, "w+")
fcntl.flock(x, fcntl.LOCK_EX | fcntl.LOCK_NB)
except (IOError, OSError): # exception changed from Python 2 to 3
raise ScoValueError(
"Un envoi de la base "
+ db_name
+ " est déjà en cours, re-essayer plus tard"
)
try:
# Drop if exists
_drop_ano_db(ano_db_name)
# Duplicate database
_duplicate_db(db_name, ano_db_name)
# Anonymisation
_anonymize_db(ano_db_name)
# Send
r = _send_db(context, REQUEST, ano_db_name)
if r.status_code == requests.codes.INSUFFICIENT_STORAGE:
H.append(
"""<p class="warning">
Erreur: espace serveur trop plein.
Merci de contacter <a href="mailto:{0}">{0}</a></p>""".format(
SCO_DEV_MAIL
)
)
elif r.status_code == requests.codes.OK:
H.append("""<p>Opération effectuée.</p>""")
else:
H.append(
"""<p class="warning">
Erreur: code <tt>{0} {1}</tt>
Merci de contacter <a href="mailto:{2}">{2}</a></p>""".format(
r.status_code, r.reason, SCO_DEV_MAIL
)
)
finally:
# Drop anonymized database
_drop_ano_db(ano_db_name)
# Remove lock
fcntl.flock(x, fcntl.LOCK_UN)
log("sco_dump_and_send_db: done.")
return "\n".join(H) + context.sco_footer(REQUEST)
def _duplicate_db(db_name, ano_db_name):
"""Create new database, and copy old one into"""
cmd = ["createdb", "-E", "UTF-8", ano_db_name]
log("sco_dump_and_send_db/_duplicate_db: {}".format(cmd))
try:
out = subprocess.check_output(cmd)
except subprocess.CalledProcessError as e:
log("sco_dump_and_send_db: exception createdb {}".format(e))
raise ScoValueError(
"erreur lors de la creation de la base {}".format(ano_db_name)
)
cmd = "pg_dump {} | psql {}".format(db_name, ano_db_name)
log("sco_dump_and_send_db/_duplicate_db: {}".format(cmd))
try:
out = subprocess.check_output(cmd, shell=1)
except subprocess.CalledProcessError as e:
log("sco_dump_and_send_db: exception {}".format(e))
raise ScoValueError(
"erreur lors de la duplication de la base {} vers {}".format(
db_name, ano_db_name
)
)
def _anonymize_db(ano_db_name):
"""Anonymize a departement database"""
cmd = os.path.join(SCO_CONFIG_DIR, "anonymize_db.py")
log("_anonymize_db: {}".format(cmd))
try:
out = subprocess.check_output([cmd, ano_db_name])
except subprocess.CalledProcessError as e:
log("sco_dump_and_send_db: exception in anonymisation: {}".format(e))
raise ScoValueError(
"erreur lors de l'anonymisation de la base {}".format(ano_db_name)
)
def _get_scodoc_serial(context):
try:
return int(open(os.path.join(SCODOC_VERSION_DIR, "scodoc.sn")).read())
except:
return 0
def _send_db(context, REQUEST, ano_db_name):
"""Dump this (anonymized) database and send it to tech support"""
log("dumping anonymized database {}".format(ano_db_name))
try:
data = subprocess.check_output("pg_dump {} | gzip".format(ano_db_name), shell=1)
except subprocess.CalledProcessError as e:
log("sco_dump_and_send_db: exception in anonymisation: {}".format(e))
raise ScoValueError(
"erreur lors de l'anonymisation de la base {}".format(ano_db_name)
)
log("uploading anonymized dump...")
files = {"file": (ano_db_name + ".gz", data)}
r = requests.post(
SCO_DUMP_UP_URL,
files=files,
data={
"dept_name": context.get_preference("DeptName"),
"serial": _get_scodoc_serial(context),
"sco_user": str(REQUEST.AUTHENTICATED_USER),
"sent_by": context.Users.user_info(str(REQUEST.AUTHENTICATED_USER))[
"nomcomplet"
],
"sco_version": SCOVERSION,
"sco_subversion": get_svn_version(SCO_CONFIG_DIR),
},
)
return r
def _drop_ano_db(ano_db_name):
"""drop temp database if it exists"""
existing_databases = [
s.split("|")[0].strip()
for s in subprocess.check_output(["psql", "-l"]).split("\n")[3:]
]
if ano_db_name not in existing_databases:
log("_drop_ano_db: no temp db, nothing to drop")
return
cmd = ["dropdb", ano_db_name]
log("sco_dump_and_send_db: {}".format(cmd))
try:
out = subprocess.check_output(cmd)
except subprocess.CalledProcessError as e:
log("sco_dump_and_send_db: exception dropdb {}".format(e))
raise ScoValueError(
"erreur lors de la suppression de la base {}".format(ano_db_name)
)
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