hashing is done

This commit is contained in:
brent s. 2019-12-11 06:33:24 -05:00
parent d7d85c7d9d
commit 1ae519bb40
3 changed files with 73 additions and 9 deletions

View File

@ -1,4 +1,4 @@
import os
import hashlib
import re
import subprocess # I wish there was a better way to get the supported LUKS ciphers.
import uuid
@ -287,3 +287,6 @@ MDADM_SUPPORTED_LAYOUTS = {5: (re.compile(r'^((left|right)-a?symmetric|[lr][as]|
None)}
# glibc doesn't support bcrypt/blowfish nor des (nor any of the others, like e.g. scrypt)
CRYPT_SUPPORTED_HASHTYPES = ('sha512', 'sha256', 'md5')
HASH_BUILTIN_SUPPORTED_TYPES = tuple(sorted(list(hashlib.algorithms_available)))
HASH_EXTRA_SUPPORTED_TYPES = set(('adler32', 'crc32'))
HASH_SUPPORTED_TYPES = tuple(sorted(list(hashlib.algorithms_available.union(HASH_EXTRA_SUPPORTED_TYPES))))

View File

@ -9,6 +9,9 @@ class File(object):
self.path_rel = pathlib.PurePosixPath(self.orig_path)
self.path_full = pathlib.PurePosixPath(self.fullpath)

def __str(self):
return(self.fullpath)


class Directory(object):
def __init__(self, dir_path):
@ -19,25 +22,35 @@ class Directory(object):
self.files = []
self.dirs = []

def populateFilesDirs(self, recursive = False):
def __str__(self):
return(self.fullpath)

def populateFilesDirs(self, recursive = False, native = False):
if not recursive:
for i in os.listdir(self.fullpath):
if os.path.isdir(os.path.join(self.fullpath, i)):
self.dirs.append(i)
elif os.path.isfile(os.path.join(self.fullpath, i)):
if not native:
self.files.append(i)
else:
self.files.append(File(i))
else:
for root, dirs, files in os.walk(self.fullpath):
for f in files:
fpath = os.path.join(root, f)
relfpath = pathlib.PurePosixPath(fpath).relative_to(self.path_full)
relfpath = str(pathlib.PurePosixPath(fpath).relative_to(self.path_full))
if not native:
self.files.append(relfpath)
else:
self.files.append(relfpath)
for d in dirs:
dpath = os.path.join(root, d)
reldpath = pathlib.PurePosixPath(dpath).relative_to(self.path_full)
reldpath = str(pathlib.PurePosixPath(dpath).relative_to(self.path_full))
self.dirs.append(reldpath)
if root not in self.dirs:
self.dirs.append(dirs)
self.dirs.append(root)
if not native:
self.dirs.sort()
self.files.sort()
return(None)

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@ -0,0 +1,48 @@
import hashlib
import pathlib
import zlib
##
import aif.constants_fallback
from . import file_handler


class Hash(object):
def __init__(self, file_path):
self.hashers = None

def configure(self, hashalgo = None):
self.hashers = {}
if hashalgo:
if not isinstance(hashalgo, list):
hashalgo = [hashalgo]
else:
hashalgo = list(aif.constants_fallback.HASH_SUPPORTED_TYPES)
for h in hashalgo:
if h not in aif.constants_fallback.HASH_SUPPORTED_TYPES:
raise ValueError('Hash algorithm not supported')
if h not in aif.constants_fallback.HASH_EXTRA_SUPPORTED_TYPES:
hasher = hashlib.new(h)
else: # adler32 and crc32
hasher = getattr(zlib, h)
self.hashers[h] = hasher
return()

def hashData(self, data):
results = {}
if not self.hashers:
self.configure()
for hashtype, hasher in self.hashers.items():
if hashtype in aif.constants_fallback.HASH_EXTRA_SUPPORTED_TYPES:
results[hashtype] = hasher(data)
else:
rslt = hasher.update(data)
results[hashtype] = rslt.hexdigest()
return(results)

def hashFile(self, file_path):
if not isinstance(file_path, (str, file_handler.File, pathlib.Path, pathlib.PurePath)):
raise ValueError('file_path must be a path expression')
file_path = str(file_path)
with open(file_path, 'rb') as fh:
results = self.hashData(fh.read())
return(results)