""" Storage for both keys and data """ import os,sys; sys.path.append(os.path.abspath(os.path.join(os.path.abspath(os.path.join(os.path.dirname(__file__),'..')),'..'))) from comrad import * # from simplekv.fs import FilesystemStore # from simplekv.memory.redisstore import RedisStore # import redis import hashlib,os import zlib from pythemis.exception import ThemisError # from vedis import Vedis # from walrus.tusks.rlite import WalrusLite LOG_GET_SET = 0 class Crypt(Logger): def __init__(self, name=None, fn=None, use_secret=CRYPT_USE_SECRET, path_secret=PATH_CRYPT_SECRET, encrypt_values=False, encryptor_func=None, decryptor_func=None): # defaults if not name and fn: name=os.path.basename(fn).replace('.','_') self.name,self.fn=name,fn # use secret? for salting if use_secret and path_secret: if not os.path.exists(path_secret): self.secret = get_random_binary_id() from comrad.backend.keymaker import make_key_discreet self.log('shhh! creating secret:',make_key_discreet(self.secret)) with open(path_secret,'wb') as of: of.write(self.secret) else: with open(path_secret,'rb') as f: self.secret = f.read() else: self.secret = b'' self.encrypt_values = encrypt_values if self.secret and encrypt_values and (not encryptor_func or not decryptor_func): from comrad.backend.keymaker import ComradSymmetricKeyWithPassphrase self.key = ComradSymmetricKeyWithPassphrase( passphrase=self.secret ) encryptor_func = self.key.encrypt decryptor_func = self.key.decrypt self.encryptor_func=encryptor_func self.decryptor_func=decryptor_func # self.store = FilesystemStore(self.fn) # self.store = RedisStore(redis.StrictRedis()) # self.db = Vedis(self.fn) # self.db = WalrusLite(self.fn) # import hirlite # self.db = hirlite.Rlite(path=self.fn) from pupdb.core import PupDB self.db = PupDB(self.fn) def log(self,*x,**y): if LOG_GET_SET: super().log(*x) def hash(self,binary_data): # return binary_data return hasher(binary_data,self.secret) def force_binary(self,k_b): if k_b is None: return None if type(k_b)==str: k_b=k_b.encode() if type(k_b)!=bytes: k_b=k_b.decode() return k_b def package_key(self,k,prefix=''): if not k: return b'' k_b = self.force_binary(k) k_b2 = self.force_binary(prefix) + k_b return k_b2 def package_val(self,k,encrypt=None): if encrypt is None: encrypt=self.encrypt_values k_b = self.force_binary(k) if encrypt: try: k_b = self.encryptor_func(k_b) except ThemisError as e: self.log('!! ENCRYPTION ERROR:',e) return k_b def unpackage_val(self,k_b,encrypt=None): if encrypt is None: encrypt=self.encrypt_values if encrypt: try: k_b = self.decryptor_func(k_b) except ThemisError as e: self.log('!! DECRYPTION ERROR:',e) return k_b def has(self,k,prefix=''): got=self.get(k,prefix=prefix) # self.log('has got',got) return bool(got) def set(self,k,v,prefix='',override=False,encrypt=True): if self.has(k,prefix=prefix) and not override: self.log(f"I'm afraid I can't let you do that, overwrite someone's data!\n\nat {prefix}{k} = {v}") return False #(False,None,None) k_b=self.package_key(k,prefix=prefix) k_b_hash = self.hash(k_b) v_b=self.package_val(v,encrypt = (self.encrypt_values and encrypt)) if not override: self.log(f'''Crypt.set(\n\t{k_b}\n\n\t{k_b_hash}\n\n\t{v_b}\n)''') #self.store.put(k_b_hash,v_b) #with self.db.transaction(): # self.db[k_b_hash]=v_b # return self.db.command('set',k_b_hash,v_b) return self.db.set(k_b_hash,v_b) # return True def exists(self,k,prefix=''): return self.has(k,prefix=prefix) def key2hash(self,k,prefix=''): return self.hash( self.package_key( prefix + k ) ) def delete(self,k,prefix=''): k_b=self.package_key(k,prefix=prefix) k_b_hash = self.hash(k_b) # v = self.db.command('del',k_b_hash) v = self.db.remove(k_b_hash) self.log('<--',v) return v def get(self,k,prefix=''): k_b=self.package_key(k,prefix=prefix) k_b_hash = self.hash(k_b) # v=self.db.get(k_b_hash) self.log('getting k',k,'with prefix',prefix) self.log('getting k_b',k_b) self.log('getting k_b_hash',k_b_hash) # v = self.db.command('get',k_b_hash) v = self.db.get(k_b_hash) self.log('<--',v) v_b=self.unpackage_val(v) return v_b class KeyCrypt(Crypt): def __init__(self): return super().__init__(name=PATH_CRYPT_CA_KEYS.replace('.','_')) class DataCrypt(Crypt): def __init__(self): return super().__init__(name=PATH_CRYPT_CA_DATA.replace('.','_')) class CryptList(Crypt): # like inbox def __init__(self, crypt, keyname, prefix='', encryptor_func=lambda x: x, decryptor_func=lambda x: x): self.crypt=crypt self.db=self.crypt.db self.keyname=self.crypt.package_key(keyname,prefix) @property def values(self): return list(self.l) def package_val(self,val): # if type(val)!=bytes: val=val.encode() return val def unpackage_val(self,val): # if type(val)==str: val=val.encode() return val def append(self,val): self.log('<--val',val) if type(val)==list: return [self.append(x) for x in val] val_x = self.package_val(val) # with self.db.transaction(): # res = self.db.lpush(self.keyname,val_x) # res = self.db.command('rpush',self.keyname,val_x) oldval = self.db.get(self.keyname) if oldval: newval = oldval + [val_x] else: newval = [val_x] res=self.db.set(self.keyname, newval) self.log('-->',res) return res def prepend(self,val): self.log('<--val',val) if type(val)==list: return [self.prepend(x) for x in val] val_x = self.package_val(val) # res = self.db.command('lpush',self.keyname,val_x) oldval = self.db.get(self.keyname) if oldval: newval = [val_x] + oldval else: newval = [val_x] res=self.db.set(self.keyname, newval) self.log('-->',res) return res @property def values(self): #l = self.db.command('lrange',self.keyname, '0', '-1') l=self.db.get(self.keyname) self.log('<-- l',l) if not l: return [] vals = [self.unpackage_val(x) for x in l] self.log('-->',vals) return vals def remove(self,val): self.log('<--',val) if type(val)==list: return [self.remove(x) for x in val] val_x = self.package_val(val) #self.db.command('lrem',self.keyname,'0',val_x) l = self.db.get(self.keyname) l = [x for x in l if x!=val_x] self.db.set(self.keyname,l) if __name__=='__main__': crypt = Crypt(fn='tes22t.db') print(crypt.set( 'testing22', b'wooooooboy', prefix='/test/', )) print('got back', crypt.get( 'testing22', prefix='/test/' )) crypt_list = CryptList( keyname='MyInbosdx35', crypt=crypt ) print(crypt_list.values) # print(crypt_list.remove('cool thing 0')) # print(crypt_list.append('cool thing 1')) print(crypt_list.append('Appended')) print(crypt_list.append('cool thing 0')) print(crypt_list.prepend('Prepended')) print() print() print(crypt_list.remove('cool thing 0')) print() print() print(crypt_list.values)