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260 lines
7.8 KiB
Python
260 lines
7.8 KiB
Python
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 comrad import *
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from comrad.backend import *
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def is_valid_msg_d(msg_d):
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if not type(msg_d)==dict: return False
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to_name=msg_d.get('to_name')
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to_pub=msg_d.get('to')
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from_name=msg_d.get('from_name')
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from_pub=msg_d.get('from')
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msg=msg_d.get('msg')
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# if to_name and to_pub and from_name and from_pub and msg: return True
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if to_pub and from_pub and msg: return True
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return False
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class Message(Logger):
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def __init__(self,msg_d={},from_whom=None,to_whom=None,msg=None):
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# check input
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self.msg_d=msg_d
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self.to_name=msg_d.get('to_name') if not to_whom else to_whom.name
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self.to_pubkey=msg_d.get('to') if not to_whom else to_whom.uri
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self.from_name=msg_d.get('from_name') if not from_whom else from_whom.name
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self.from_pubkey=msg_d.get('from') if not from_whom else from_whom.uri
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self.msg=msg_d.get('msg') if not msg else msg
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self.timestamp=msg_d.get('timestamp',time.time())
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self._route=msg_d.get(ROUTE_KEYNAME)
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self._is_encrypted=None
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# reset msg_d
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self.msg_d = {
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'msg':self.msg,
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'to':self.to_pubkey,
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'to_name':self.to_name,
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'from':self.from_pubkey,
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'from_name':self.from_name,
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'timestamp':self.timestamp,
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}
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def __repr__(self):
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# self.log('my type??',type(self.msg),self.msg)
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if type(self.msg)==dict:
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if is_valid_msg_d(self.msg):
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import textwrap
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msg = textwrap.indent(repr(Message(self.msg)),' '*10)
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elif 'txt' in self.msg:
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msg=self.msg.get('txt')
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else:
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msg=dict_format(self.msg,tab=6)
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elif type(self.msg)==bytes:
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msg=b64enc_s(self.msg)
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else:
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msg=self.msg
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# return str(msg)
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msg_s = wrapp(str(msg))
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hdr='#'*CLI_WIDTH
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from datetime import datetime
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self.log('msg_d',self.msg_d)
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if self.timestamp:
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dt_object = datetime.fromtimestamp(self.timestamp)
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timestr = dt_object.strftime("%-d %b %Y %H:%M")
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else:
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timestr = '?'
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return f"""
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{hdr}
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from: @{self.from_name if self.from_name else ''}
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to: @{self.to_name if self.to_name else ''}
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on: {timestr}
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{hdr}
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{msg_s}
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{hdr}
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"""
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@property
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def data(self):
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md={}
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msg_d=self.msg_d
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while msg_d:
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for k,v in msg_d.items(): md[k]=v
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msg_d = msg_d.get('msg',{})
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if type(msg_d)!=dict: msg_d=None
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if 'msg' in md and type(md['msg']) == dict:
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del md['msg']
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if ROUTE_KEYNAME in md:
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del md[ROUTE_KEYNAME]
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return md
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def return_to_sender(self,new_msg=None):
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self.log('making return to sender. v1:',self)
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new_msg = Message(
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{
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'from':self.msg_d.get('to'),
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'to':self.msg_d.get('from'),
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'from_name':self.msg_d.get('to_name'),
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'to_name':self.msg_d.get('from_name'),
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'msg':new_msg if new_msg else self.msg_d.get('msg'),
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'timestamp':time.time(),
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}
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)
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self.log('returning:',new_msg)
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return new_msg
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@property
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def from_whom(self):
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# from comrad.backend.comrades import Comrad
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return Comrad(self.from_name, pubkey=self.from_pubkey)
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@property
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def to_whom(self):
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# from comrad.backend.comrades import Comrad
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return Comrad(self.to_name, pubkey=self.to_pubkey)
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def decrypt(self,recursive=False):
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# check if needs decryption
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if not self.is_encrypted: return
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# otherwise lets do it
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self.msg_encr = self.msg
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self.log(f'Attempting to decrypt:\n{self}')
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# decrypt msg
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# self.log('attempting to decrypt',self.msg,'from',self.from_pubkey,'to',self.to_pubkey, self.to_whom,dict_format(self.to_whom.keychain()),self.to_whom.assemble(self.to_whom.keychain()))
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if not self.to_whom.privkey:
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self.log(f'{self.to_whom} cannot decrypt this message! {dict_format(self.to_whom.keychain())}!\n\n{self.to_whom.name} {self.to_whom.pubkey} {self.to_name} {self.to_pubkey} {self.to_whom.keychain()}')
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return
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self.msg = self.msg_d['msg'] = decr_msg_b = SMessage(
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self.to_whom.privkey.data,
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b64dec(self.from_pubkey)
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).unwrap(self.msg)
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# unpickle
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self.msg = self.msg_d['msg'] = decr_msg = pickle.loads(decr_msg_b)
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self.log('Message decrypted:\n',self)
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# now, is the decrypted message itself a message?
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if is_valid_msg_d(decr_msg):
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self.log('Once decrypted, I discovered that I contain an enclosed encrypted message!\n\n',self)
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# then ... make that, a message object and decrypt it too!
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self.msg = Message(decr_msg)
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if recursive and self.msg.is_encrypted:
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self.msg.decrypt()
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# self.log(f'done decrypting! {self}')
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return decr_msg
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@property
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def is_encrypted(self):
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return type(self.msg) == bytes
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# if self.msg._is_encrypted is not None:
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# return self.msg._is_encrypted
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def encrypt(self): # each child message should already be encrypted before coming to its parent message ,recursive=False):
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if self._is_encrypted: return
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# self.log(f'attempting to encrypt msg {self.msg} from {self.from_whom} to {self.to_whom}')
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# self.log(f'Before encrypting the message from @{self.from_name} to @{self.to_name}, it looks like:\n{self}')
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# make sure msg is not meeta
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if self.has_embedded_msg:
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self.msg = self.msg.msg_d
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# self.log('woops, first had to replace Message object with dict',self)
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# binarize msg
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msg_b = pickle.dumps(self.msg)
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# encrypt it!
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# self.log('from whom keychain:',self.from_whom.keychain())
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# self.log('to pubkey:',self.to_pubkey)
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msg_encr = SMessage(
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self.from_whom.privkey.data,
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b64dec(self.to_pubkey)
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).wrap(msg_b)
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self.msg_decr = self.msg
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self.msg_d['msg'] = self.msg = b64encode(msg_encr)
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# self.log(f'After encrypting the message from {self.from_whom} to {self.to_whom}, it looks like:\n{self}')
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self.msg_d['msg'] = self.msg = msg_encr
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self._is_encrypted = True
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@property
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def msg_b(self):
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return pickle.dumps(self.msg_d)
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## msg properties
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@property
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def has_embedded_msg(self):
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return type(self.msg) == Message
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@property
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def messages(self):
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# move through msgs recursively
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def _msgs():
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msg=self
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while True:
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yield msg
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if msg.has_embedded_msg:
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msg=msg.msg
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break
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return list(_msgs())
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@property
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def route(self):
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if type(self.msg)==dict:
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rte=self.msg.get(ROUTE_KEYNAME)
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if rte:
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return rte
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if self.has_embedded_msg:
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return self.msg.route
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return None
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def delete_route(self):
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if type(self.msg)==dict:
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del self.msg[ROUTE_KEYNAME]
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if ROUTE_KEYNAME in self.msg_d['msg']:
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del self.msg_d['msg'][ROUTE_KEYNAME]
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if self.has_embedded_msg:
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self.msg.delete_route()
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def test_msg():
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phone = TheTelephone()
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op = TheOperator()
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pprint(op.pubkey)
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print('?keychains?')
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pprint(phone.pubkey)
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msg={'_route':'forge_new_keys'}
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resp_msp_obj = phone.ring_ring(msg)
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print(resp_msp_obj)
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if __name__ == '__main__':
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test_msg() |