import os import asyncio from pythemis.skeygen import KEY_PAIR_TYPE, GenerateKeyPair from pythemis.smessage import SMessage, ssign, sverify from pythemis.exception import ThemisError from base64 import b64decode,b64encode # from kademlia.network import Server import os,time,sys,logging from pathlib import Path sys.path.append('../p2p') BSEP=b'||||||||||' BSEP2=b'@@@@@@@@@@' BSEP3=b'##########' NODE_SLEEP_FOR=1 P2P_PREFIX=b'/persona/' P2P_PREFIX_POST=b'/msg/' P2P_PREFIX_INBOX=b'/inbox/' P2P_PREFIX_OUTBOX=b'/outbox/' WORLD_PUB_KEY = b'VUVDMgAAAC1z53KeApQY4RICK5k0nXnnS+K17veIFMPlFKo7mqnRhTZDhAmG' WORLD_PRIV_KEY = b'UkVDMgAAAC26HXeGACxZUoKYKlZ7sDmVoLwffNj3CrdqoPrE94+2ysfhufmP' KOMRADE_PUB_KEY = b'VUVDMgAAAC09uo+wAgu/V9xyvMkMDbOQEk1ssOrFADaiyTzfwVjE6o8FHoil' KOMRADE_PRIV_KEY = b'UkVDMgAAAC33fFiaAIpmQewjkYndzMcMkj1mLy/lE4RXJQzIlUN94tyC5g29' KEY_PATH = os.path.join(os.path.expanduser('~'),'.komrade') if not os.path.exists(KEY_PATH): os.makedirs(KEY_PATH) WORLD_PRIV_KEY_FN = os.path.join(KEY_PATH,'.world.key') WORLD_PUB_KEY_FN = os.path.join(KEY_PATH,'.world.kom') KOMRADE_PRIV_KEY_FN = os.path.join(KEY_PATH,'.komrade.key') KOMRADE_PUB_KEY_FN = os.path.join(KEY_PATH,'.komrade.kom') def check_world_keys(): if not os.path.exists(WORLD_PRIV_KEY_FN): with open(WORLD_PRIV_KEY_FN,'wb') as of: of.write(WORLD_PRIV_KEY) if not os.path.exists(WORLD_PUB_KEY_FN): with open(WORLD_PUB_KEY_FN,'wb') as of: of.write(WORLD_PUB_KEY) if not os.path.exists(KOMRADE_PRIV_KEY_FN): with open(KOMRADE_PRIV_KEY_FN,'wb') as of: of.write(KOMRADE_PRIV_KEY) if not os.path.exists(KOMRADE_PUB_KEY_FN): with open(KOMRADE_PUB_KEY_FN,'wb') as of: of.write(KOMRADE_PUB_KEY) check_world_keys() ## CONNECTING ## utils def get_random_id(): import uuid return uuid.uuid4().hex def get_random_binary_id(): import base64 idstr = get_random_id() return base64.b64encode(idstr.encode()) def logger(): import logging handler = logging.StreamHandler() formatter = logging.Formatter('[%(asctime)s]\n%(message)s\n') handler.setFormatter(formatter) logger = logging.getLogger(__file__) logger.addHandler(handler) logger.setLevel(logging.DEBUG) return logger LOG = None def log(*x): global LOG if not LOG: LOG=logger().debug tolog=' '.join(str(_) for _ in x) LOG(tolog) class NetworkStillConnectingError(OSError): pass class Persona(object): def __init__(self,name,node=None,create_if_missing=True): self.name=name self.log=log self.privkey=None self.pubkey=None self._node=node self.create_if_missing=create_if_missing self.log(f'>> Persona.__init__(name={name},create_if_missing={create_if_missing})') #loop=asyncio.get_event_loop() #loop.run_until_complete(self.boot()) # asyncio.run(self.boot()) @property async def node(self): return self._node async def boot(self): self.log(f'>> Persona.boot()') # self.load_or_gen() await self.find_keys() if self.pubkey is None and self.create_if_missing: self.gen_keys() await self.set_pubkey_p2p() if self.privkey and self.pubkey: return {'success':'Logged in...'} return {'error':'Login failed'} @property def key_path_pub(self): return os.path.join(KEY_PATH,'.'+self.name+'.kom') @property def key_path_priv(self): return os.path.join(KEY_PATH,'.'+self.name+'.key') @property def name_b64(self): return b64encode(self.name.encode()) @property def privkey_b64(self): return b64encode(self.privkey) @property def pubkey_b64(self): return b64encode(self.pubkey) ## genearating keys def gen_keys(self): self.log('gen_keys()') keypair = GenerateKeyPair(KEY_PAIR_TYPE.EC) self.privkey = keypair.export_private_key() self.pubkey = keypair.export_public_key() self.log(f'priv_key saved to {self.key_path_priv}') with open(self.key_path_priv, "wb") as private_key_file: private_key_file.write(self.privkey_b64) with open(self.key_path_pub, "wb") as public_key_file: public_key_file.write(self.pubkey_b64) ## loading keys from disk def find_keys_local(self): self.log(f'find_keys_local(path_pub={self.key_path_pub}, path_priv={self.key_path_priv})') if os.path.exists(self.key_path_pub): with open(self.key_path_pub) as pub_f: self.pubkey=b64decode(pub_f.read()) if os.path.exists(self.key_path_priv): with open(self.key_path_priv) as priv_f: self.privkey=b64decode(priv_f.read()) ## finding on p2p net async def find_keys_p2p(self,name=None): await self.node if not name: name=self.name self.log(f'find_keys_p2p(name={name})') name_b64=b64encode(name.encode()) node = await self.node key=P2P_PREFIX+name.encode() self.log(f'LOOKING FOR: {key}') res = await node.get(key) self.log(f'FOUND: {res}') if res is not None: signed_msg,pubkey_b64 = b64decode(res).split(BSEP) self.log('!!!!!',signed_msg,pubkey_b64) verified_msg = self.verify(signed_msg,pubkey_b64) if verified_msg is not None: self.log('verified message!',verified_msg) name,pubkey_b64 = verified_msg.split(BSEP2) self.pubkey = b64decode(pubkey_b64) self.name = b64decode(name).decode() print('>> found pubkey!',self.pubkey_b64,'and name',self.name) async def find_keys(self): self.find_keys_local() if self.pubkey is None: await self.find_keys_p2p() async def set_pubkey_p2p(self): # signed_name = self.sign(b64encode(self.name.encode())) # signed_pubkey_b64 = self.sign(self.pubkey_b64) self.log(f'set_pubkey_p2p()...') signed_msg = self.sign(self.name_b64 + BSEP2 + self.pubkey_b64) package = b64encode(signed_msg + BSEP +self.pubkey_b64) #await self.api.set('/pubkey/'+self.name,package,encode_data=False) key=P2P_PREFIX+self.name.encode() newval=package self.log('set_pubkey()',key,'-->',newval) node = await self.node return await node.set(key,newval) ## E/D/S/V def encrypt(self,msg_b64,for_pubkey_b64): # handle verification failure for_pubkey = b64decode(for_pubkey_b64) encrypted_msg = SMessage(self.privkey, for_pubkey).wrap(msg_b64) return b64encode(encrypted_msg) def decrypt(self,encrypted_msg_b64,from_pubkey_b64): # handle verification failure from_pubkey = b64decode(from_pubkey_b64) encrypted_msg = b64decode(encrypted_msg_b64) decrypted_msg = SMessage(self.privkey, from_pubkey).unwrap(encrypted_msg) return b64decode(decrypted_msg) def sign(self,msg): signed_msg = b64encode(ssign(self.privkey, msg)) return signed_msg def verify(self,signed_msg_b64,pubkey_b64): signed_msg = b64decode(signed_msg_b64) public_key = b64decode(pubkey_b64) try: verified_msg = sverify(public_key, signed_msg) return verified_msg except ThemisError as e: print('!!',e) return None ## EVEN HIGHER LEVEL STUFF: person 2 person @property async def world(self): if not hasattr(self,'_world'): self._world = Persona('world') await self._world.boot() return self._world @property async def komrade(self): if not hasattr(self,'_komrade'): self._komrade = Persona('komrade') await self._komrade.boot() return self._komrade async def send(self,msg_b,to): """ 1) [Encrypted payload:] 1) Timestamp 2) Public key of sender 3) Public key of recipient 4) AES-encrypted Value 2) [Decryption tools] 1) AES-decryption key 2) AES decryption IV value 5) Signature of value by author """ to_person=to if type(msg_b)==str: msg_b=msg_b.encode() msg_b64=b64encode(msg_b) # encrypt and sign encrypted_payload = self.encrypt(msg_b64, to_person.pubkey_b64) signed_encrypted_payload = self.sign(encrypted_payload) # # package time_b64 = b64encode(str(time.time()).encode()) # signed_msg_b64 = self.sign(msg_b64) # WDV = [ # time_b64, # self.pubkey_b64, # to_person.pubkey_b64, # signed_msg_b64 # ] # payload_b64 = b64encode(BSEP.join(WDV)) WDV_b64 = b64encode(BSEP.join([signed_encrypted_payload,self.pubkey_b64,self.name_b64,time_b64])) self.log('WDV_b64 =',WDV_b64) # doublewrapped komrade = await self.komrade double_encrypted_payload = komrade.encrypt(WDV_b64, to_person.pubkey_b64) self.log('double_encrypted_payload =',double_encrypted_payload) # send! post_id = get_random_id().encode() uri_post = P2P_PREFIX_POST + post_id uri_inbox = P2P_PREFIX_INBOX + to_person.name.encode() uri_outbox = P2P_PREFIX_OUTBOX + self.name.encode() # send post to net node = await self.node await node.set(uri_post, double_encrypted_payload) # add to indices sofar_inbox = await node.get(uri_inbox) sofar_outbox = await node.get(uri_outbox) self.log(f'sofar_inbox = {sofar_inbox}') self.log(f'sofar_outbox = {sofar_outbox}') newval_inbox = post_id if sofar_inbox is None else sofar_inbox+BSEP+post_id newval_outbox = post_id if sofar_outbox is None else sofar_outbox+BSEP+post_id self.log(f'newval_inbox = {newval_inbox}') self.log(f'newval_outbox = {newval_outbox}') res_inbox = await node.set(uri_inbox,newval_inbox) res_outbox = await node.set(uri_outbox,newval_outbox) if res_inbox is not None and res_outbox is not None: length_inbox = newval_inbox.count(BSEP)+1 length_outbox = newval_outbox.count(BSEP)+1 return { 'success':'Inbox length increased to %s, outbox to %s' % (length_inbox,length_outbox), 'post_id':post_id, 'post':encrypted_payload, } return {'error':'Could not append data'} async def read_inbox(self,uri_inbox=None): if uri_inbox is None: uri_inbox = P2P_PREFIX_INBOX+self.name.encode() node = await self.node inbox_ids = await node.get(uri_inbox) if inbox_ids is not None: inbox_ids = inbox_ids.split(BSEP) self.log('found inbox IDs:',inbox_ids) msgs_toread = [self.read_msg(msg_id) for msg_id in inbox_ids] msgs = await asyncio.gather(*msgs_toread) self.log('read_inbox() msgs = ',msgs) return msgs return [] async def read_outbox(self,uri_outbox=None): if uri_outbox is None: uri_outbox = P2P_PREFIX_OUTBOX+self.name.encode() return await self.read_inbox(uri_outbox) async def read_msg(self,msg_id): self.log(f'Persona.read_msg({msg_id}) ?') uri_msg=P2P_PREFIX_POST+msg_id node = await self.node komrade = await self.komrade res = await node.get(uri_msg) self.log('res = ',res) if res is not None: double_encrypted_payload_b64 = res single_encrypted_payload = self.decrypt(double_encrypted_payload_b64, komrade.pubkey_b64) self.log('GOT ENRYPTED PAYLOAD:',single_encrypted_payload) signed_encrypted_payload_b64,from_pubkey_b64,name_b64,time_b64 = single_encrypted_payload.split(BSEP) self.log('signed_encrypted_payload =',signed_encrypted_payload_b64) self.log('from_pubkey_b64 =',from_pubkey_b64) self.log('time_b64 =',time_b64) from_name = b64decode(name_b64).decode() self.log('from_name =',from_name) timestamp = b64decode(time_b64).decode() tmpP = Persona(from_name) await tmpP.boot() from_pubkey_b64_acc_to_name = tmpP.pubkey_b64 assert from_pubkey_b64==from_pubkey_b64_acc_to_name encrypted_payload_b64 = self.verify(signed_encrypted_payload_b64, from_pubkey_b64) self.log('encrypted_payload_b64 =',encrypted_payload_b64) payload = self.decrypt(encrypted_payload_b64, from_pubkey_b64) self.log('payload =',payload) return { 'success':True, 'content':payload, 'from_name':from_name, 'from_pubkey_b64':from_pubkey_b64, 'timestamp':timestamp } return {'error':'Unknown'} def run_multiple_tasks(tasks): async def _go(tasks): res = await asyncio.gather(*tasks, return_exceptions=True) return res return asyncio.get_event_loop().run_until_complete(_go(tasks)) async def main(): # start node from kademlia.network import Server #from p2p_api import PORT_LISTEN = 5969 # NODES_PRIME = [("128.232.229.63",8467), ("68.66.241.111",8467)] NODES_PRIME = [("128.232.229.63",8467)] node = Server(log=log) await node.listen(PORT_LISTEN) await node.bootstrap(NODES_PRIME) marx = Persona('marx',node=node) elon = Persona('elon2',node=node) world = Persona('world',node=node) await world.boot() # komrade = Persona('komrade') # await komrade.boot() await marx.boot() await elon.boot() # await marx.send(b'Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! Secret message 2! ',to=elon) # await elon.read_inbox() await marx.send(b'A specter is haunting the internet',to=world) await elon.send(b'My rockets explode and so will your mind',to=world) await elon.send(b'My rockets explode and so will your mind',to=world) await world.read_inbox() return True if __name__=='__main__': asyncio.run(main())