ScoDoc/app/scodoc/sco_archives_justificatifs.py

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"""
Gestion de l'archivage des justificatifs
Ecrit par Matthias HARTMANN
"""
import os
from datetime import datetime
from shutil import rmtree
from app.models import Identite
from app.scodoc.sco_archives import BaseArchiver
from app.scodoc.sco_exceptions import ScoValueError
from app.scodoc.sco_utils import is_iso_formated
class Trace:
"""gestionnaire de la trace des fichiers justificatifs"""
def __init__(self, path: str) -> None:
self.path: str = path + "/_trace.csv"
self.content: dict[str, list[datetime, datetime, str]] = {}
self.import_from_file()
def import_from_file(self):
"""import trace from file"""
if os.path.isfile(self.path):
with open(self.path, "r", encoding="utf-8") as file:
for line in file.readlines():
csv = line.split(",")
if len(csv) < 4:
continue
fname: str = csv[0]
entry_date: datetime = is_iso_formated(csv[1], True)
delete_date: datetime = is_iso_formated(csv[2], True)
user_id = csv[3]
self.content[fname] = [entry_date, delete_date, user_id]
def set_trace(self, *fnames: str, mode: str = "entry", current_user: str = None):
"""Ajoute une trace du fichier donné
mode : entry / delete
"""
modes: list[str] = ["entry", "delete", "user_id"]
for fname in fnames:
if fname in modes:
continue
traced: list[datetime, datetime, str] = self.content.get(fname, False)
if not traced:
self.content[fname] = [None, None, None]
traced = self.content[fname]
traced[modes.index(mode)] = (
datetime.now() if mode != "user_id" else current_user
)
self.save_trace()
def save_trace(self):
"""Enregistre la trace dans le fichier _trace.csv"""
lines: list[str] = []
for fname, traced in self.content.items():
date_fin: datetime or None = traced[1].isoformat() if traced[1] else "None"
2023-06-23 16:12:36 +02:00
if traced[0] is not None:
lines.append(f"{fname},{traced[0].isoformat()},{date_fin}, {traced[2]}")
with open(self.path, "w", encoding="utf-8") as file:
file.write("\n".join(lines))
def get_trace(
self, fnames: list[str] = None
) -> dict[str, list[datetime, datetime, str]]:
"""Récupère la trace pour les noms de fichiers.
si aucun nom n'est donné, récupère tous les fichiers"""
if fnames is None:
return self.content
traced: dict = {}
for fname in fnames:
traced[fname] = self.content.get(fname, None)
return traced
class JustificatifArchiver(BaseArchiver):
"""
TOTALK:
- oid -> etudid
- archive_id -> date de création de l'archive (une archive par dépot de document)
justificatif
<dept_id>
<etudid/oid>
[_trace.csv]
<archive_id>
[_description.txt]
[<filename.ext>]
"""
def __init__(self):
BaseArchiver.__init__(self, archive_type="justificatifs")
def save_justificatif(
self,
etudid: int,
filename: str,
data: bytes or str,
archive_name: str = None,
description: str = "",
user_id: str = None,
) -> str:
"""
Ajoute un fichier dans une archive "justificatif" pour l'etudid donné
Retourne l'archive_name utilisé
"""
self._set_dept(etudid)
if archive_name is None:
archive_id: str = self.create_obj_archive(
oid=etudid, description=description
)
else:
archive_id: str = self.get_id_from_name(etudid, archive_name)
fname: str = self.store(archive_id, filename, data)
trace = Trace(self.get_obj_dir(etudid))
trace.set_trace(fname, mode="entry")
if user_id is not None:
trace.set_trace(fname, mode="user_id", current_user=user_id)
return self.get_archive_name(archive_id), fname
def delete_justificatif(
self,
etudid: int,
archive_name: str,
filename: str = None,
has_trace: bool = True,
):
"""
Supprime une archive ou un fichier particulier de l'archivage de l'étudiant donné
Si trace == True : sauvegarde le nom du/des fichier(s) supprimé(s) dans la trace de l'étudiant
"""
self._set_dept(etudid)
if str(etudid) not in self.list_oids():
raise ValueError(f"Aucune archive pour etudid[{etudid}]")
archive_id = self.get_id_from_name(etudid, archive_name)
if filename is not None:
if filename not in self.list_archive(archive_id):
raise ValueError(
f"filename {filename} inconnu dans l'archive archive_id[{archive_id}] -> etudid[{etudid}]"
)
path: str = os.path.join(self.get_obj_dir(etudid), archive_id, filename)
if os.path.isfile(path):
if has_trace:
trace = Trace(self.get_obj_dir(etudid))
trace.set_trace(filename, mode="delete")
os.remove(path)
else:
if has_trace:
trace = Trace(self.get_obj_dir(etudid))
trace.set_trace(*self.list_archive(archive_id), mode="delete")
self.delete_archive(
os.path.join(
self.get_obj_dir(etudid),
archive_id,
)
)
def list_justificatifs(
self, archive_name: str, etudid: int
) -> list[tuple[str, int]]:
"""
Retourne la liste des noms de fichiers dans l'archive donnée
"""
self._set_dept(etudid)
filenames: list[str] = []
archive_id = self.get_id_from_name(etudid, archive_name)
filenames = self.list_archive(archive_id)
trace: Trace = Trace(self.get_obj_dir(etudid))
traced = trace.get_trace(filenames)
retour = [(key, value[2]) for key, value in traced.items()]
return retour
def get_justificatif_file(self, archive_name: str, etudid: int, filename: str):
"""
Retourne une réponse de téléchargement de fichier si le fichier existe
"""
self._set_dept(etudid)
archive_id: str = self.get_id_from_name(etudid, archive_name)
if filename in self.list_archive(archive_id):
return self.get_archived_file(etudid, archive_name, filename)
raise ScoValueError(
f"Fichier {filename} introuvable dans l'archive {archive_name}"
)
def _set_dept(self, etudid: int):
"""
Mets à jour le dept_id de l'archiver en fonction du département de l'étudiant
"""
etud: Identite = Identite.query.filter_by(id=etudid).first()
self.set_dept_id(etud.dept_id)
def remove_dept_archive(self, dept_id: int = None):
"""
Supprime toutes les archives d'un département (ou de tous les départements)
Supprime aussi les fichiers de trace
"""
self.set_dept_id(1)
self.initialize()
if dept_id is None:
rmtree(self.root, ignore_errors=True)
else:
rmtree(os.path.join(self.root, str(dept_id)), ignore_errors=True)
def get_trace(
self, etudid: int, *fnames: str
) -> dict[str, list[datetime, datetime]]:
"""Récupère la trace des justificatifs de l'étudiant"""
trace = Trace(self.get_obj_dir(etudid))
return trace.get_trace(fnames)