Implement DataBase class

This commit is contained in:
LPOCHOLLE 2021-09-30 16:33:36 +02:00
parent 5c2d2a22a6
commit 155788cd1a
2 changed files with 82 additions and 4 deletions

View File

@ -1,6 +1,8 @@
import re import re
import gzip import gzip
import sqlite3
from crypt import * from crypt import *
import pathlib
class Backup: class Backup:
@ -8,11 +10,13 @@ class Backup:
compressMinSize = "50M" compressMinSize = "50M"
save_location = None save_location = None
def __init__(self, key): def __init__(self, key, bdd):
self.key = key self.key = key
self.bdd = DataBase(bdd)
def recurse(self, path): def recurse(self, path):
min_size = parse_size(self.compressMinSize) min_size = parse_size(self.compressMinSize)
files = []
for f in os.listdir(path): for f in os.listdir(path):
uri = os.path.join(path, f) uri = os.path.join(path, f)
if os.path.isfile(uri): if os.path.isfile(uri):
@ -22,9 +26,11 @@ class Backup:
enc = crypt(compress(uri), self.key) enc = crypt(compress(uri), self.key)
else: else:
enc = crypt(uri, self.key) enc = crypt(uri, self.key)
files.append({'name': f, 'path': uri})
save(enc, os.path.join(self.save_location, f + ".enc")) save(enc, os.path.join(self.save_location, f + ".enc"))
elif os.path.isdir(uri): elif os.path.isdir(uri):
self.recurse(uri) self.recurse(uri)
self.bdd.add(files)
def compress(file): def compress(file):
@ -65,6 +71,9 @@ def uncrypt(file, key):
def save(file, name): def save(file, name):
if not os.path.isdir(os.path.dirname(name)):
os.mkdir(os.path.dirname(name))
if type(file) is io.BufferedRandom or tempfile.SpooledTemporaryFile: if type(file) is io.BufferedRandom or tempfile.SpooledTemporaryFile:
file.seek(0) file.seek(0)
with open(name, 'wb') as save: with open(name, 'wb') as save:
@ -75,6 +84,66 @@ def save(file, name):
return return
class DataBase:
def __init__(self, base_file):
self.conn = sqlite3.connect(base_file)
self.__create_table()
def __del__(self):
self.conn.commit()
self.conn.close()
def __create_table(self):
cursor = self.conn.cursor()
cursor.execute("""
CREATE TABLE IF NOT EXISTS files(
id INTEGER PRIMARY KEY UNIQUE NOT NULL,
name TEXT,
path TEXT
)
""")
cursor.execute("""
CREATE TABLE IF NOT EXISTS crypt(
id INTEGER PRIMARY KEY UNIQUE NOT NULL,
compressed INTEGER
)
""")
cursor.execute("""
CREATE TABLE IF NOT EXISTS content(
id INTEGER PRIMARY KEY UNIQUE NOT NULL,
files_id INTEGER,
crypt_id INTEGER,
isdir INTEGER,
CONSTRAINT content_files_FK FOREIGN KEY (files_id) REFERENCES files(id),
CONSTRAINT content_crypt_FK FOREIGN KEY (crypt_id) REFERENCES crypt(id)
)
""")
self.conn.commit()
def add(self, list_file, compressed=False):
isdir = True if len(list_file) > 0 else False
cursor = self.conn.cursor()
cursor.execute("""SELECT IFNULL(max(id), 0) FROM crypt""")
crypt_id = cursor.fetchone()[0]
cursor.execute("""SELECT IFNULL(max(id), 0) FROM content""")
content_id = cursor.fetchone()[0]
cursor.execute("""SELECT IFNULL(max(id), 0) FROM files""")
files_id = cursor.fetchone()[0]
for file in list_file:
cursor.execute("""INSERT INTO files VALUES(?, ?, ?)""", (files_id, file['name'], file['path']))
files_id += 1
cursor.execute("""INSERT INTO crypt VALUES(?, ?)""", (crypt_id, compressed))
cursor.execute("""INSERT INTO content VALUES(?, ?, ?, ?)""", (content_id, files_id, crypt_id, isdir))
return crypt_id
def human_size(size, decimal_places=0): def human_size(size, decimal_places=0):
for unit in ['B', 'K', 'M', 'G', 'T']: for unit in ['B', 'K', 'M', 'G', 'T']:
if size < 1024.0: if size < 1024.0:

15
main.py
View File

@ -1,6 +1,6 @@
from Crypto.Random import get_random_bytes from Crypto.Random import get_random_bytes
import os import os
from Backup import Backup from Backup import *
if not os.path.exists("key"): if not os.path.exists("key"):
key = get_random_bytes(32) # 32 bytes * 8 = 256 bits (1 byte = 8 bits) key = get_random_bytes(32) # 32 bytes * 8 = 256 bits (1 byte = 8 bits)
@ -11,8 +11,17 @@ else:
print("Recovered") print("Recovered")
print(key) print(key)
bck = Backup(key) bdd = "bdd.db"
bck.save_location = "C:\\temp" bck = Backup(key, bdd)
bck.save_location = "crypted"
rootdir = "test" rootdir = "test"
bck.recurse(rootdir) bck.recurse(rootdir)
# base = DataBase(bdd)
# file1 = {'name': "testname", 'path': "pathtest"}
# file2 = {'name': "secondname", 'path': "secondpath"}
# truc = []
# truc.append(file1)
# base.add(truc)