mirror of
https://github.com/ComradCollective/Comrad
synced 2024-11-05 21:20:51 +00:00
147 lines
4.1 KiB
Python
147 lines
4.1 KiB
Python
"""
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Storage for both keys and data
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"""
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import os,sys; sys.path.append(os.path.abspath(os.path.join(os.path.abspath(os.path.join(os.path.dirname(__file__),'..')),'..')))
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from komrade import *
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from simplekv.fs import FilesystemStore
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from simplekv.memory.redisstore import RedisStore
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import redis
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import hashlib,os
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import zlib
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LOG_GET_SET = True
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class Crypt(Logger):
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def __init__(self,name=None,fn=None,cell=None,init_d=None,use_secret=CRYPT_USE_SECRET,path_secret=PATH_CRYPT_SECRET):
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if not name and fn: name=os.path.basename(fn).replace('.','_')
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if use_secret and path_secret:
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if not os.path.exists(path_secret):
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self.secret = get_random_binary_id()
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self.log('shhh! creating secret:',self.secret)
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with open(path_secret,'wb') as of:
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of.write(self.secret)
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else:
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with open(path_secret,'rb') as f:
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self.secret = f.read()
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else:
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self.secret = b''
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self.name,self.fn,self.cell = name,fn,cell
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self.store = FilesystemStore(self.fn)
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if init_d:
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for k,v in init_d.items():
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try:
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self.store.put(k,v)
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except OSError as e:
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self.log('!!',e)
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self.log('!! key ->',k)
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self.log('!! val ->',v)
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raise KomradeException()
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def log(self,*x):
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if LOG_GET_SET:
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super().log(*x)
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def hash(self,binary_data):
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return hashlib.sha256(binary_data + self.secret).hexdigest()
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# return zlib.adler32(binary_data)
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def force_binary(self,k_b):
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if k_b is None: return None
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if type(k_b)==str: k_b=k_b.encode()
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if type(k_b)!=bytes: k_b=k_b.decode()
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return k_b
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def package_key(self,k,prefix=''):
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if not k: return b''
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k_b = self.force_binary(k)
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k_b2 = self.force_binary(prefix) + k_b
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return k_b2
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def package_val(self,k):
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k_b = self.force_binary(k)
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if self.cell is not None: k_b = self.cell.encrypt(k_b)
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return k_b
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def unpackage_val(self,k_b):
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try:
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if self.cell is not None: k_b = self.cell.decrypt(k_b)
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except ThemisError:
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pass
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return k_b
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def has(self,k,prefix=''):
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k_b=self.package_key(k,prefix=prefix)
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k_b_hash = self.hash(k_b)
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try:
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v=self.store.get(k_b_hash)
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return True
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except KeyError:
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return False
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def set(self,k,v,prefix=''):
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if self.has(k,prefix=prefix):
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self.log("I'm afraid I can't let you do that, overwrite someone's data!")
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return False
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k_b=self.package_key(k,prefix=prefix)
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k_b_hash = self.hash(k_b)
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v_b=self.package_val(v)
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self.log(f'set(\n\t{prefix}{k},\n\t{k_b}\n\t{k_b_hash}\n\t\n\t{v_b}\n)\n')
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# store
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self.store.put(k_b_hash,v_b)
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return True
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def exists(self,k,prefix=''):
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return self.has(k,prefix=prefix)
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def get(self,k,prefix=''):
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k_b=self.package_key(k,prefix=prefix)
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k_b_hash = self.hash(k_b)
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try:
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v=self.store.get(k_b_hash)
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except KeyError:
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return None
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v_b=self.unpackage_val(v)
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return v_b
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class KeyCrypt(Crypt):
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def __init__(self):
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return super().__init__(name=PATH_CRYPT_CA_KEYS.replace('.','_'))
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class DataCrypt(Crypt):
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def __init__(self):
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return super().__init__(name=PATH_CRYPT_CA_DATA.replace('.','_'))
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from collections import defaultdict
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class CryptMemory(Crypt):
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def __init__(self):
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self.data = defaultdict(None)
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self.crypt = defaultdict(None)
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self.cell = None
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def set(self,k,v,prefix=''):
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k_b=self.package_key(k,prefix=prefix)
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v_b=self.package_val(v)
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self.data[k]=v_b
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self.crypt[k_b]=v_b
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if __name__=='__main__':
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crypt = Crypt('testt')
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print(crypt.set('hellothere',b'ryan'))
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# print(crypt.get(b'hello there')) |