import os,time,sys,logging from pathlib import Path import asyncio,time # handler = logging.StreamHandler() # formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s') # handler.setFormatter(formatter) # logger = logging.getLogger(__file__) # logger.addHandler(handler) # logger.setLevel(logging.DEBUG) sys.path.append('../p2p') # logger.info(os.getcwd(), sys.path) BSEP=b'\n\n' BSEP2=b'\t\n' BSEP3=b'\r\r' NODE_SLEEP_FOR=1 try: from .crypto import * from .p2p import * from .kad import * except (ModuleNotFoundError,ImportError): from crypto import * from p2p import * from kad import * from pathlib import Path from functools import partial # works better with tor? import json jsonify = json.dumps # Start server DEBUG = True UPLOAD_DIR = 'uploads/' ALLOWED_EXTENSIONS = {'png', 'jpg', 'jpeg', 'gif'} # PORT_SPEAK = 8468 PORT_LISTEN = 5639 # Api Functions from threading import Thread NODES_PRIME = [("128.232.229.63",8467), ("68.66.241.111",8467)] #68.66.224.46 from pathlib import Path home = str(Path.home()) KEYDIR = os.path.join(home,'.komrade','.keys') if not os.path.exists(KEYDIR): os.makedirs(KEYDIR) async def _getdb(self=None,port=PORT_LISTEN): from kademlia.network import Server if self: self.log('starting server..') import os if self: self.log(os.getcwd()) node = Server() #fn='../p2p/data.db',log=(self.log if self else print))) if self: self.log('listening..') await node.listen(port) if self: self.log('bootstrapping server..') await node.bootstrap(NODES_PRIME) self.log('NODE:',node) return node def logg(*x): print(*x) class Api(object): def __init__(self,user=None,log=None): self.log = log if log is not None else logg self.username = user def private_key(self): if self.username: pass async def connect_forever(self,port=PORT_LISTEN,save_every=10): try: i = 0 self._node = await self.connect(port=port) while True: if not i%60: self.log(f'Node status (tick {i}): {self._node}') if i and not i%save_every: await self.flush() i += 1 await asyncio.sleep(NODE_SLEEP_FOR) # asyncio.sleep(0) except (asyncio.CancelledError,KeyboardInterrupt) as e: self.log('P2P node cancelled', e) await self.flush() finally: # when canceled, print that it finished self.log('P2P node shutting down') pass @property async def node(self): # while not hasattr(self,'_node'): # self.log('[API] waiting forr connection...') # await asyncio.sleep(1) # return self._node if not hasattr(self,'_node'): await self.connect() return self._node async def connect(self,port=PORT_LISTEN): self.log('connecting...') node = await _getdb(self,port) self.log(f'connect() has node {node}') self._node = node return node async def get(self,key_or_keys,decode_data=True): self.log(f'get({key_or_keys},decode_data={decode_data}) --> ...') async def _get(): node=await self.node res=None if type(key_or_keys) in {list,tuple,dict}: keys = key_or_keys tasks=[] for key in keys: val = await node.get(key) task = self.decode_data(val) if decode_data else val tasks.append(task) res = await asyncio.gather(*tasks) else: key=key_or_keys val = await node.get(key) res = await self.decode_data(val) if decode_data else val self.log(f'_get({key_or_keys}) --> {res}') return res return await _get() def encode_data(self,val,sep=BSEP,sep2=BSEP2,do_encrypt=True,receiver_pubkey=None,private_signature_key=None): """ What do we want to store with 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 """ import time timestamp=time.time() # check input if not receiver_pubkey: self.log('we need a receiver !!') return None # convert val to bytes if type(val)!=bytes: val = bytes(val,'utf-8') value_bytes=base64.b64encode(val) # sign private_signature_key = private_signature_key if private_signature_key is not None else self.private_key signature = sign(value_bytes, private_signature_key) public_sender_key = private_signature_key.public_key() sender_pubkey_b = serialize_pubkey(public_sender_key) # Verify! authentic = verify_signature(signature, value_bytes, sender_pubkey_b) if not authentic: self.log('message is inauthentic for set??',authentic) return None # encrypt? receiver_pubkey_b = serialize_pubkey(receiver_pubkey) time_b=str(timestamp).encode() msg=value_bytes # whole binary package WDV = [ time_b, sender_pubkey_b, receiver_pubkey_b, msg, signature ] payload = sep2.join(WDV) res = aes_rsa_encrypt(payload,receiver_pubkey) if res is None: return None payload_encr_aes, payload_encr_aes_key, payload_encr_aes_iv = res decryption_tools = sep2.join([ payload_encr_aes_key, payload_encr_aes_iv ]) final_packet = sep.join([ payload_encr_aes, decryption_tools ]) return final_packet async def decode_data(self,entire_packet_orig,sep=BSEP,private_key=None,sep2=BSEP2): if entire_packet_orig is None: return entire_packet_orig entire_packet = base64.b64decode(entire_packet_orig) self.log('????',type(entire_packet)) self.log(entire_packet) # get data try: encrypted_payload, decryption_tools = entire_packet.split(sep) decryption_tools=decryption_tools.split(sep2) except ValueError: self.log('!! decode_data() got incorrect format') return entire_packet_orig # ### FIRST LINE OF PROTECTION # # is the receiver's public id in our list of public IDs? # to_pub = load_pubkey(to_pub_b) # oktogo=False # CORRECT_PUB_KEY=None # CORRECT_PRIV_KEY=None # for privkey,pubkey in self.keys(): # if pubkey.public_numbers() == to_pub.public_numbers(): # oktogo=True # CORRECT_PUB_KEY = pubkey # CORRECT_PRIV_KEY = privkey # break # if not oktogo: return None ### SECOND LINE OF PROTECTION # first try to decrypt sender to see if we have access to this # def _decrypt_aes_rsa(args): # val_encr,val_encr_key,iv = args # val = aes_rsa_decrypt(val_encr,val_encr_key,iv,CORRECT_PRIV_KEY) # return val # from_pub_decr = _decrypt_rsa(*sender_encr) # if not from_pub_decr: return None # from_pub = load_pubkey(from_pub_b) ### NEW FIRST LINE: Try to decrypt! val=None for keyname,privkey,pubkey in self.keys(): try: val = aes_rsa_decrypt(encrypted_payload,privkey,*decryption_tools) #self.log('decrypted =',val) break except ValueError as e: self.log(keyname,'did not work!') #,privkey,pubkey) pass if not val: self.log('Content not intended for us') return None #stop ### THIRD LINE: SIGNATURE VERIFICATION # can we decrypt signature? val_array = val.split(sep2) # self.log('val_array =',val_array) time_b,sender_pubkey_b,receiver_pubkey_b,msg,signature = val_array if not signature: return None sender_pubkey=load_pubkey(sender_pubkey_b) authentic = verify_signature(signature,msg,sender_pubkey) if not authentic: self.log('inauthentic message!') return None # ### FOURTH LINE: CONTENT ENCRYPTION # if private_key is None: # private_key=self.private_key_global # val_encr = base64.b64decode(val_encr) # val_encr_key = base64.b64decode(val_encr_key) # self.log(f"""decrypting # val_encr = {val_encr} # val_encr_key = {val_encr_key} # iv = {iv} # private_key = {private_key} # """) # val = _decrypt_aes() # self.log('val after decryption = ',val) # valdec = base64.b64decode(val) WDV={ 'time':float(time_b.decode()), 'val':base64.b64decode(msg), 'to':receiver_pubkey_b, 'from':sender_pubkey_b, 'sign':signature } # self.log('GOT WDV:',WDV) return WDV #,signature async def set(self,key_or_keys,value_or_values,private_signature_key=None,encode_data=True): self.log(f'api.set({key_or_keys}) --> {type(value_or_values)}') async def _set(): # self.log('async _set()',self.node) # node=self.node #node=await _getdb(self) node=await self.node def proc(value): if encode_data: return self.encode_data(value,private_signature_key=private_signature_key) return value if type(key_or_keys) in {list,tuple,dict}: keys = key_or_keys values = value_or_values assert len(keys)==len(values) tasks=[ node.set( key, proc(value) ) for key,value in zip(keys,values) ] res = await asyncio.gather(*tasks) # self.log('RES?',res) else: key = key_or_keys value = value_or_values res = await node.set(key,proc(value)) #node.stop() return res return await _set() async def get_json(self,key_or_keys,decode_data=True): def jsonize(entry): # self.log('jsonize!',entry) if not entry: return entry if not 'val' in entry: return entry val=entry['val'] try: dat=json.loads(val) if val else val except UnicodeDecodeError: dat=val # self.log('dat??',dat) entry['val']=dat return entry def jsonize_res(res): # parse differently? if type(res)==list: jsonl=[jsonize(entry) for entry in res] return jsonl else: entry = res return jsonize(entry) # if key_or_keys.startsiwth('/post/'): res = await self.get(key_or_keys,decode_data=decode_data) #self.log('get_json() got',res) if not res: return None return jsonize_res(res) async def set_json(self,key,value,private_signature_key=None,encode_data=False): value_json = jsonify(value) # self.log('OH NO!',sys.getsizeof(value_json)) return await self.set(key,value_json,private_signature_key=None,encode_data=False) async def has(self,key): val=await self.get(key) return val is not None ## PERSONS async def get_person(self,username): return await self.get('/person/'+username,decode_data=False) async def set_person(self,username,pem_public_key): # pem_public_key = save_public_key(public_key,return_instead=True) #obj = {'name':username, 'public_key':pem_public_key} # await self.set_json('/person/'+username,obj) await self.set('/person/'+username,pem_public_key, private_signature_key=None,encode_data=False) ## Register async def register(self,name,passkey=None): # if not (name and passkey): return {'error':'Name and password needed'} person = await self.get_person(name) if person is not None: # try to log in self.log('my keys',self.keys.keys()) if not name in self.keys: return {'error':'Person already exists'} # test 3 conditions privkey=self.keys[name] pubkey=load_pubkey(person) if simple_lock_test(privkey,pubkey): self.username=name return {'success':'Logging back in...'} private_key = generate_rsa_key() public_key = private_key.public_key() pem_private_key = serialize_privkey(private_key, password=passkey)# save_private_key(private_key,password=passkey,return_instead=True) pem_public_key = serialize_pubkey(public_key) # save pub key in db await self.set_person(name,pem_public_key) # save priv key on hardware fn_privkey = os.path.join(KEYDIR,f'.{name}.key') self.log('priv key =',pem_private_key) write_key_b(pem_private_key, fn_privkey) # good return {'success':'Person created ...', 'username':name} def load_private_key(self,password): #if not self.app_storage.exists('_keys'): return {'error':'No login keys present on this device'} pem_private_key=self.app_storage.get('_keys').get('private') # self.log('my private key ====',pem_private_key) try: return {'success':load_privkey(pem_private_key,password)} except ValueError as e: self.log('!!',e) return {'error':'Incorrect password'} ## LOGIN async def login(self,name,passkey): # verify input if not (name and passkey): return {'error':'Name and password required'} # try to load private key private_key_dat = self.load_private_key(passkey) if 'error' in private_key_dat: return {'error':private_key_dat['error']} if not 'success' in private_key_dat: return {'error':'Incorrect password?'} self._private_key = private_key = private_key_dat['success'] # see if user exists person = await self.get_person(name) # self.log(person) if person is None: return {'error':'Login failed'} # verify keys # self.log('got person =',person) person_public_key_pem = person['public_key'] public_key = load_pubkey(person_public_key_pem) #load_public_key(person_public_key_pem.encode()) self._public_key = real_public_key = private_key.public_key() #log('PUBLIC',public_key.public_numbers()) #log('REAL PUBLIC',real_public_key.public_numbers()) if public_key.public_numbers() != real_public_key.public_numbers(): return {'error':'Keys do not match!'} return {'success':'Login successful', 'username':name} #@property def get_keys(self): res={} for priv_key_fn in os.listdir(KEYDIR): if (not priv_key_fn.startswith('.') or not priv_key_fn.endswith('.key')): continue fnfn = os.path.join(KEYDIR,priv_key_fn) print(fnfn) priv_key=load_privkey_fn(fnfn) #pub_key=priv_key.public_key() name_key= '.'.join(priv_key_fn.split('.')[1:-1]) res[name_key] = priv_key self.log(f'[API] found key {name_key} and added to keychain') return res @property def keys(self): if not hasattr(self,'_keys'): self._keys = self.get_keys() return self._keys async def append_json(self,key,data): sofar=await self.get_json_val(key) if sofar is None: sofar = [] if type(sofar)!=list: sofar=[sofar] if type(data)!=list: data=[data] new=sofar + data if await self.set_json(key, new): return {'success':'Length increased to %s' % len(new)} return {'error':'Could not append json'} async def upload(self,filename,file_id=None, uri='/file/',uri_part='/part/'): import sys if not file_id: file_id = get_random_id() part_ids = [] part_keys = [] parts=[] PARTS=[] buffer_size=100 for part in bytes_from_file(filename,chunksize=1024*2): part_id = get_random_id() part_ids.append(part_id) part_key='/part/'+part_id part_keys.append(part_key) parts.append(part) # PARTS.append(part) # self.log('part!:',sys.getsizeof(part)) #self.set(part_key,part) if len(parts)>=buffer_size: # self.log('setting...') await self.set(part_keys,parts) part_keys=[] PARTS+=parts parts=[] # set all parts #self.set(part_keys,PARTS) # self.log('# parts:',len(PARTS)) if parts and part_keys: await self.set(part_keys, parts) # how many parts? # self.log('# pieces!',len(part_ids)) file_store = {'ext':os.path.splitext(filename)[-1][1:], 'parts':part_ids} # self.log('FILE STORE??',file_store) await self.set_json(uri+file_id,file_store) # file_store['data'].seek(0) file_store['id']=file_id return file_store async def download(self,file_id): self.log('file_id =',file_id) file_store = await self.get_json_val('/file/'+file_id) self.log('file_store =',file_store) if file_store is None: return self.log('file_store!?',file_store) keys = ['/part/'+x for x in file_store['parts']] #time,pieces,pub,sign = await self.get_json_val(keys) pieces = await self.get_json_val(keys) self.log('pieces = ',pieces) file_store['parts_data']=pieces return file_store #def get_current_event_id(self): # return self.get_json_val(self,'/current/event/id') # def get_uri(self): # event_id = self.get_current_event_id() # event_id=1 if event_id is None else int(event_id) # return f'/post/{event_id}' async def flush(self): self.log('saving back to db file...') node = await self.node node.storage.dump() self.log('DONE saving back to db file...') async def post(self,data,to_inbox,add_to_outbox=True): post_id=get_random_id() res = await self.set_json('/post/'+post_id, data) if not res: self.log('!! error, couldn\'t set post json') return # ## add to inbox self.append_json(f'/inbox/{to_inbox}',post_id) ## add to outbox if add_to_outbox: un=data.get('author') if un: await self.append_json(f'/outbox/{un}', post_id) if res: asyncio.create_task(self.flush()) return {'success':'Posted! %s' % post_id, 'post_id':post_id} return {'error':'Post failed'} async def get_json_val(self,uri,decode_data=True): res=await self.get_json(uri,decode_data=decode_data) r=None if type(res) == dict: r=res.get('val',None) if res is not None else None elif type(res) == list: r=[x.get('val',None) for x in res if x is not None] self.log(f'get_json_val() --> {r}') return r async def get_post(self,post_id): return await self.get_json_val(post_id,decode_data=True) async def get_posts(self,uri='/inbox/earth'): # index = await self.get_json_val('/posts'+uri) self.log(f'api.get_posts(uri={uri}) --> ...') index = await self.get_json_val(uri,decode_data=True) self.log('got index?',index) if index is None: return [] if type(index)!=list: index=[index] index = [x for x in index if x is not None] ## get full json return await self.get_json(['/post/'+x for x in index]) ## func def bytes_from_file(filename,chunksize=8192): with open(filename, 'rb') as f: while True: piece = f.read(chunksize) if not piece: break yield piece def get_random_id(): import uuid return uuid.uuid4().hex def test_api(): # api.set(['a','b','c'],[1,2,3]) async def run(): api = Api() # await api.connect() #await api.set_json('whattttt',{'aaaaa':12222}) #await api.set_json('whattttt',[111]) #await api.set_json('whattttt',[111]) #val = await api.get_json('whattttt') server = await _getdb(api) await server.set('a',1) print(await server.get('a')) await asyncio.sleep(5) await server.set('a',2) print(await server.get('a')) await asyncio.sleep(5) await server.set('a',str([2,3,4,5])) print(await server.get('a')) await asyncio.sleep(5) val = await server.get('a') print(f'VAL = {val}') return val asyncio.run(run()) def test_basic(): import asyncio from kademlia.network import Server #api = Api() # not working! #api.set_json('my key',{'a':'value'}) async def run(): # Create a node and start listening on port 5678 node = Server() await node.listen(5678) # Bootstrap the node by connecting to other known nodes, in this case # replace 123.123.123.123 with the IP of another node and optionally # give as many ip/port combos as you can for other nodes. await node.bootstrap(NODES_PRIME) # set a value for the key "my-key" on the network await node.set("my-key", "my awesome value") await node.set("my-key", "my awesome value2") await node.set("my-key", "my awesome value3") # get the value associated with "my-key" from the network result = await node.get("my-key") print(result) return result res = asyncio.run(run()) print('res = ',res) # res = asyncio.run(node.set(key,value)) # print(res) def test_provided_eg(): import asyncio from kademlia.network import Server async def run(): # Create a node and start listening on port 5678 node = Server() await node.listen(5678) # Bootstrap the node by connecting to other known nodes, in this case # replace 123.123.123.123 with the IP of another node and optionally # give as many ip/port combos as you can for other nodes. await node.bootstrap(NODES_PRIME) # set a value for the key "my-key" on the network await node.set("my-key", "my awesome value") # get the value associated with "my-key" from the network result = await node.get("my-key") print(result) asyncio.run(run()) async def lonely_selfless_node(): from api import Api,PORT_LISTEN API = Api() return await API.connect_forever(8467) def boot_lonely_selfless_node(port=8467): API = Api() asyncio.run(API.connect_forever()) def init_entities(usernames = ['earth']): ## make global entity called earth #loop=asyncio.new_event_loop() async def register(username): API = Api() #await API.connect_forever() #await API.register(username) print(API.keys) print('done') for un in usernames: asyncio.run(register(un)) if __name__=='__main__': init_entities()