add support to encrypt files

This commit is contained in:
2022-01-28 12:22:45 +08:00
parent cc123daaa0
commit cc07636350
9 changed files with 298 additions and 35 deletions

View File

@@ -12,8 +12,9 @@ from os import mkdir, remove, close
from game_backuper.file import new_file, copy_file, File, mkdir_for_file
from game_backuper.filetype import FileType
from game_backuper.restorer import RestoreTask
from game_backuper.file import remove_compress_files
from game_backuper.file import remove_compress_files, remove_unencryped_files
from game_backuper.compress import compress
from game_backuper.enc import encrypt_file
from tempfile import mkstemp
@@ -28,6 +29,7 @@ class BackupTask(Thread):
self.prog.clear_cache()
prog = self.prog.name
bp = join(self.cfg.dest, prog)
ebp = join(self.cfg.dest, '.encrypt', prog)
if not exists(bp):
mkdir(bp)
fl = self.db.get_file_list(prog)
@@ -41,31 +43,54 @@ class BackupTask(Thread):
nf = new_file(f[1], f[0], prog)
if nf is None:
continue
de = join(bp, f[0])
de = join(ebp if f.encrypt_files else bp, f[0])
if ori is not None:
if ori.size == nf.size and ori.hash == nf.hash:
if c is None:
if exists(de):
if exists(de) and not f.encrypt_files:
print(f'{prog}: Skip {f[0]}.')
remove_compress_files(de, prog, f.name)
self.remove_encrypted_file(join(ebp, f[0]), prog, f.name, ori) # noqa: E501
continue
elif exists(de) and f.encrypt_files and not ori.compressed: # noqa: E501
print(f'{prog}: Skip {f[0]}.')
remove_unencryped_files(join(bp, f[0]), prog, f.name) # noqa: E501
continue
else:
if exists(de + c.ext):
if not f.encrypt_files and exists(de + c.ext):
print(f'{prog}: Skip {f.name}.')
remove_compress_files(de, prog, f.name, c.ext) # noqa: E501
self.remove_encrypted_file(join(ebp, f[0]), prog, f.name, ori) # noqa: E501
continue
if c is None:
elif f.encrypt_files and ori.compressed_type == c.method: # noqa: E501
print(f'{prog}: Skip {f.name}.')
remove_unencryped_files(join(bp, f.name), prog, f.name) # noqa: E501
continue
stats = None
if f.encrypt_files:
stats = encrypt_file(f[1], de, nf, f.name, prog, c)
remove_unencryped_files(join(bp, f[0]), prog, f.name) # noqa: E501
elif c is None:
copy_file(f[1], de, f[0], prog)
remove_compress_files(de, prog, f.name)
self.remove_encrypted_file(join(ebp, f[0]), prog, f.name, ori) # noqa: E501
else:
compress(f[1], de, c, f.name, prog)
self.remove_encrypted_file(join(ebp, f[0]), prog, f.name, ori) # noqa: E501
self.db.set_file(ori.id, nf.size, nf.hash)
self.db.set_file_encrypt_information(ori.id, stats)
else:
if c is None:
if f.encrypt_files:
s = encrypt_file(f[1], de, nf, f.name, prog, c)
nf = File.from_encrypt_stats(s, nf)
remove_unencryped_files(join(bp, f[0]), prog, f.name) # noqa: E501
elif c is None:
copy_file(f[1], de, f[0], prog)
remove_compress_files(de, prog, f.name)
self.remove_encrypted_file(join(ebp, f[0]), prog, f.name, ori) # noqa: E501
else:
compress(f[1], de, c, f.name, prog)
self.remove_encrypted_file(join(ebp, f[0]), prog, f.name, ori) # noqa: E501
self.db.add_file(nf)
elif isinstance(f, ConfigLeveldb):
from game_backuper.leveldb import have_leveldb
@@ -84,47 +109,68 @@ class BackupTask(Thread):
stats = leveldb_stats(f.full_path, ent)
ori = self.db.get_file(prog, f.name)
c = f.compress_config
de = join(bp, f.name + ".db")
de = join(ebp if f.encrypt_files else bp, f.name + ".db")
if ori is not None:
if ori.type is None or ori.type != FileType.LEVELDB:
pp = join(bp, ori.file)
if exists(pp):
remove(pp)
remove_compress_files(pp, prog, f.name)
remove_compress_files(pp, prog, f.name)
self.remove_encrypted_file(join(ebp, ori.file), prog, f.name, ori) # noqa: E501
self.db.remove_file(ori)
ori = None
if ori is not None:
if ori.size == stats.size and ori.hash == stats.hash:
if c is None:
if exists(de):
print(f'{prog}: Skip {f[0]}')
if exists(de) and not f.encrypt_files:
print(f'{prog}: Skip {f[0]}.')
remove_compress_files(de, prog, f.name)
self.remove_encrypted_file(join(ebp, f[0] + '.db'), prog, f.name, ori) # noqa: E501
continue
elif exists(de) and f.encrypt_files and not ori.compressed: # noqa: E501
print(f'{prog}: Skip {f[0]}.')
remove_unencryped_files(join(bp, f[0] + '.db'), prog, f.name) # noqa: E501
continue
else:
if exists(de + c.ext):
print(f'{prog}: Skip {f.name}')
if not f.encrypt_files and exists(de + c.ext):
print(f'{prog}: Skip {f.name}.')
remove_compress_files(de, prog, f.name, c.ext)
self.remove_encrypted_file(join(ebp, f[0] + '.db'), prog, f.name, ori) # noqa: E501
continue
elif f.encrypt_files and ori.compressed_type == c.method: # noqa: E501
print(f'{prog}: Skip {f.name}.')
remove_unencryped_files(join(bp, f.name + '.db'), prog, f.name) # noqa: E501
continue
mkdir_for_file(de)
st = None
if c is None:
leveldb_to_sqlite(f.full_path, de, ent)
print(f'{prog}: Covert leveldb done. {f.full_path}({f.name}) -> {de}') # noqa: E501
remove_compress_files(de, prog, f.name)
self.remove_encrypted_file(join(ebp, f[0] + '.db'), prog, f.name, ori) # noqa: E501
else:
tmp = mkstemp()
close(tmp[0])
tmp = tmp[1]
leveldb_to_sqlite(f.full_path, tmp, ent)
print(f'{prog}: Covert leveldb done. {f.full_path}({f.name}) -> {tmp}') # noqa: E501
compress(tmp, de, c, f.name, prog)
if f.encrypt_files:
st = encrypt_file(tmp, de, File.from_leveldb_stats(stats), f.name, prog, c) # noqa: E501
remove_unencryped_files(join(bp, f[0] + '.db'), prog, f.name) # noqa: E501
else:
compress(tmp, de, c, f.name, prog)
self.remove_encrypted_file(join(ebp, f[0] + '.db'), prog, f.name, ori) # noqa: E501
remove(tmp)
print(f'{prog}: Removed tempfile {tmp}')
if ori is None:
nf = File(None, f.name, stats.size, prog, stats.hash,
FileType.LEVELDB)
FileType.LEVELDB, None, None, None, None, None)
if st:
nf = File.from_encrypt_stats(st, nf)
self.db.add_file(nf)
else:
self.db.set_file(ori.id, stats.size, stats.hash)
self.db.set_file_encrypt_information(ori.id, st)
for fn in fl:
f = self.db.get_file(prog, fn)
if f.type is None:
@@ -140,6 +186,11 @@ class BackupTask(Thread):
print(f'{prog}: Remove {de}({fn})')
self.db.remove_file(f)
def remove_encrypted_file(self, loc: str, prog: str, name: str, f: File):
if exists(loc):
remove(loc)
print(f'{prog}: Removed {loc}({name})')
class Backuper:
def __init__(self, db: Db, config: Config, opts: Opts):