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authorAL-LCL <alvin@alvinhavel.com>2023-05-19 11:18:33 +0200
committerAL-LCL <alvin@alvinhavel.com>2023-05-19 11:18:33 +0200
commit2c7f989f29dbbbeb469b60a2b4c0f4357e1d8b14 (patch)
tree56059fe12bca2f9ffc52c49f42334b6a8f9a4654
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-rw-r--r--LICENSE674
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-rw-r--r--PY-CHAT.py371
-rw-r--r--README.md45
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diff --git a/LICENSE b/LICENSE
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+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
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+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/PY-CHAT.ico b/PY-CHAT.ico
new file mode 100644
index 0000000..f1c4a1b
--- /dev/null
+++ b/PY-CHAT.ico
Binary files differ
diff --git a/PY-CHAT.py b/PY-CHAT.py
new file mode 100644
index 0000000..063f3f1
--- /dev/null
+++ b/PY-CHAT.py
@@ -0,0 +1,371 @@
+import subprocess
+import threading
+import getpass
+import base64
+import curses
+import queue
+import uuid
+import sys
+import os
+
+from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
+from cryptography.hazmat.backends import default_backend
+from cryptography.hazmat.primitives import hashes
+from cryptography.fernet import Fernet
+
+from typing import Callable
+from typing import Dict
+from typing import Any
+
+from protocol import DEFAULT_PORT
+from protocol import DEFAULT_ENCODING
+from protocol import STRICT_ENCODING_ERRORS
+from protocol import LIBERAL_ENCODING_ERRORS
+from protocol import Platform
+from protocol import AsymmetricSocket
+
+class Wrap:
+
+ @staticmethod
+ def quiet_exit(callback: Callable[..., Any]) -> Callable[..., Any]:
+ def wrapper(*args, **kwargs):
+ try:
+ return callback(*args, **kwargs)
+ except Exception:
+ sys.exit()
+
+ return wrapper
+
+ @staticmethod
+ def thread_call(callback: Callable[..., None]) -> Callable[..., None]:
+ def wrapper(*args, **kwargs):
+ threading.Thread(target=callback,
+ args=args,
+ kwargs=kwargs,
+ daemon=True).start()
+
+ return wrapper
+
+ @staticmethod
+ def secure_input(callback: Callable[..., None]) -> Callable[..., Any]:
+ def wrapper(*args, **kwargs):
+ try:
+ return callback(*args, **kwargs)
+ except (KeyboardInterrupt, EOFError):
+ sys.exit()
+ except Exception:
+ print('Failed creating/joining chatroom, press enter to exit.')
+ getpass.getpass('')
+ sys.exit()
+
+ return wrapper
+
+class Console:
+
+ history = []
+
+ @classmethod
+ def init(cls) -> None:
+ cls.NOTICE = '[NOTICE]'
+ cls.MAX_USERNAME_LEN = 16
+ cls._HR_CHAR = '_'
+ cls.PRINT_PREFIX = ' '
+ cls.INPUT_PREFIX = ' : '
+ cls.PRINT_SUFFIX = ': '
+ cls.PRINT_PREFIX_LEN = len(cls.PRINT_PREFIX)
+ cls.INPUT_PREFIX_LEN = len(cls.INPUT_PREFIX)
+ cls.PRINT_SUFFIX_LEN = len(cls.PRINT_SUFFIX)
+ cls._SIZE = os.get_terminal_size()
+ cls.MAX_LINES = cls._SIZE.lines
+ cls.MAX_COLS = cls._SIZE.columns
+ cls.PRINT_LINES = cls.MAX_LINES - 4
+ cls.INPUT_LINES = cls.MAX_LINES - 2
+ cls.WINDOW = curses.initscr()
+ curses.curs_set(0)
+ cls.WINDOW.clear()
+ cls.WINDOW.addstr(cls.PRINT_LINES, 0, cls._HR_CHAR * cls.MAX_COLS)
+ cls.WINDOW.refresh()
+
+ @staticmethod
+ def write_msg(obj: Dict[str, Any]) -> None:
+ username, msg = (obj['username'], obj['msg'])
+
+ Console.history.append((username, msg, (Console.MAX_COLS
+ - Console.PRINT_PREFIX_LEN
+ - Console.PRINT_SUFFIX_LEN
+ - len(username))))
+
+ if len(Console.history) == Console.PRINT_LINES:
+ Console.history.pop(0)
+
+ cursor_y, cursor_x = Console.WINDOW.getyx()
+
+ for index, (username, msg, max_msg_len) in enumerate(Console.history, 1):
+ Console.WINDOW.addstr(index, 0, Console.PRINT_PREFIX)
+ Console.WINDOW.addstr(index,
+ Console.PRINT_PREFIX_LEN,
+ username,
+ curses.A_UNDERLINE)
+ Console.WINDOW.addstr(index,
+ Console.PRINT_PREFIX_LEN + len(username),
+ Console.PRINT_SUFFIX + msg[:max_msg_len])
+ Console.WINDOW.clrtoeol()
+
+ Console.WINDOW.move(cursor_y, cursor_x)
+ Console.WINDOW.clrtoeol()
+ Console.WINDOW.refresh()
+
+class Server:
+
+ def __init__(self, *args, **kwargs) -> None:
+ self.args = args
+ self.kwargs = kwargs
+ self.clients = {}
+ self.queue = queue.Queue()
+ self.server = AsymmetricSocket(*self.args,
+ server_side=True,
+ is_host=True,
+ **self.kwargs)
+ self.server.set_conn()
+ self.server.set_context()
+ self.server.set_middleware()
+
+ @Wrap.thread_call
+ @Wrap.quiet_exit
+ def listen(self) -> None:
+ while True:
+ conn, (ip, port) = self.server.conn.accept()
+ client = AsymmetricSocket(ip,
+ port,
+ conn=conn,
+ server_side=True,
+ **self.kwargs)
+ client.set_context()
+ id = uuid.uuid4()
+ self.clients[id] = client
+ self.pull(id, client)
+ self.push({'username': Console.NOTICE,
+ 'msg': 'User Connected'})
+
+ @Wrap.thread_call
+ @Wrap.quiet_exit
+ def pull(self, id: str, client: AsymmetricSocket) -> None:
+ try:
+ while True:
+ obj = client.recv()
+
+ assert isinstance(obj, dict), f'Wrong type: {obj=}'
+
+ msg, username = (obj.get('msg'), obj.get('username'))
+
+ assert isinstance(msg, str), f'Wrong type: {obj=}'
+ assert isinstance(username, str), f'Wrong type: {obj=}'
+
+ obj['username'] = username[:Console.MAX_USERNAME_LEN]
+ self.push(obj)
+ except Exception:
+ self._disconnect(id)
+
+ def push(self, obj: Dict[str, str]) -> None:
+ self._employ_workers()
+ self._create_jobs(obj)
+
+ def _employ_workers(self) -> None:
+ for _ in self.clients:
+ self._worker()
+
+ @Wrap.thread_call
+ @Wrap.quiet_exit
+ def _worker(self) -> None:
+ (id, client), obj = self.queue.get()
+
+ try:
+ client.send(obj)
+ except Exception:
+ self._disconnect(id)
+ finally:
+ self.queue.task_done()
+
+ def _create_jobs(self, obj: Dict[str, str]) -> None:
+ for id, client in self.clients.items():
+ self.queue.put(((id, client), obj))
+ else:
+ self.queue.join()
+
+ def _disconnect(self, id: str) -> None:
+ try:
+ del self.clients[id]
+ except KeyError:
+ pass
+ else:
+ self.push({'username': Console.NOTICE,
+ 'msg': 'User Disconnected'})
+ finally:
+ raise
+
+class Client:
+
+ def __init__(self, *args, **kwargs) -> None:
+ self.client = AsymmetricSocket(*args, **kwargs)
+ self.client.set_conn()
+ self.client.set_middleware()
+
+ @Wrap.thread_call
+ @Wrap.quiet_exit
+ def connect(self) -> None:
+ try:
+ while True:
+ obj = self.client.recv()
+ Console.write_msg(obj)
+ except Exception:
+ Console.write_msg({'username': Console.NOTICE,
+ 'msg': 'You\'ve disconnected, press enter to exit.'})
+ raise
+
+ @Wrap.quiet_exit
+ def send(self, obj: Dict[str, str]) -> None:
+ self.client.send(obj)
+
+class Main:
+
+ _SALT = '66a64d07-4b49-4fb4-979c-be60b970f480'
+ _SALT = _SALT.encode(DEFAULT_ENCODING,
+ errors=STRICT_ENCODING_ERRORS)
+
+ @Wrap.secure_input
+ def __init__(self, lines: int, cols: int, theme: str) -> None:
+ if Platform.WINDOWS:
+ os.system(f'mode con lines={lines} cols={cols} && color {theme}')
+ else:
+ print(f'\x1b[8;{lines};{cols}t', end='', flush=True)
+
+ while True:
+ category = self._ask('Create/Join Chatroom: ')
+ category = category.lower()
+
+ if category in ('create', 'join'):
+ break
+
+ if category == 'create':
+ address = self._ask('Chatroom Address: ').split(':')[:2]
+
+ if len(address) == 2:
+ hostname, port = (address[0], int(address[1]))
+ else:
+ hostname, port = (address[0], DEFAULT_PORT)
+
+ link_address = input('Chatroom Link Address (Optional Forwarded Port Address): ').split(':')[:2]
+
+ if len(link_address) == 2:
+ link_hostname, link_port = (link_address[0], int(link_address[1]))
+ else:
+ link_hostname, link_port = (hostname, port)
+
+ password = self._ask('Chatroom Password: ', secret=True)
+ password = password.encode(DEFAULT_ENCODING, errors=STRICT_ENCODING_ERRORS)
+
+ if not os.path.isdir('Certificates'):
+ os.mkdir('Certificates')
+
+ pubk_filepath = os.path.join('Certificates', 'public_key.pem')
+ privk_filepath = os.path.join('Certificates', 'private_key.pem')
+
+ try:
+ subprocess.run(('openssl',
+ 'req',
+ '-newkey',
+ 'rsa:2048',
+ '-nodes',
+ '-keyout',
+ privk_filepath,
+ '-x509',
+ '-days',
+ '36500',
+ '-out',
+ pubk_filepath,
+ '-batch'),
+ encoding=DEFAULT_ENCODING,
+ errors=STRICT_ENCODING_ERRORS,
+ stdin=subprocess.DEVNULL,
+ stdout=subprocess.DEVNULL,
+ stderr=subprocess.DEVNULL)
+ except Exception:
+ print('\nWARNING: OpenSSL not found in path, falling back on old certificates.', end='')
+
+ with open(pubk_filepath,
+ 'r',
+ encoding=DEFAULT_ENCODING,
+ errors=STRICT_ENCODING_ERRORS) as fh:
+ pubk_data = fh.read()
+
+ link = f'{link_hostname}:{link_port}@{pubk_data}'
+ link = link.encode(DEFAULT_ENCODING, errors=STRICT_ENCODING_ERRORS)
+ link = self._secret(password).encrypt(link)
+ link = link.decode(DEFAULT_ENCODING, errors=STRICT_ENCODING_ERRORS)
+ print(f'\nWARNING: Before continuing, save the generated link.\n\n{link}\n')
+ else:
+ link = self._ask('Chatroom Link: ')
+ link = link.encode(DEFAULT_ENCODING, errors=STRICT_ENCODING_ERRORS)
+ password = self._ask('Chatroom Link Password: ', secret=True)
+ password = password.encode(DEFAULT_ENCODING, errors=STRICT_ENCODING_ERRORS)
+ link = self._secret(password).decrypt(link)
+ link = link.decode(DEFAULT_ENCODING, errors=STRICT_ENCODING_ERRORS)
+
+ address, pubk_data = link.split('@')[:2]
+ address = address.split(':')[:2]
+ hostname, port = (address[0], int(address[1]))
+
+ self.username = self._ask('Your Chatroom Username: ')
+
+ if category == 'create':
+ Server(hostname, port, public_key=pubk_filepath, private_key=privk_filepath).listen()
+
+ Console.init()
+
+ prefix_print_len = (len(self.username)
+ + Console.PRINT_PREFIX_LEN
+ + Console.PRINT_SUFFIX_LEN)
+ prefix_input_len = Console.INPUT_PREFIX_LEN
+
+ if prefix_print_len > prefix_input_len:
+ max_input_len = prefix_print_len
+ else:
+ max_input_len = prefix_input_len
+
+ self.max_input_len = Console.MAX_COLS - max_input_len
+ self.client = Client(hostname, port, public_key_data=pubk_data)
+ self.client.connect()
+
+ def _secret(self, password: bytes) -> Fernet:
+ secret = PBKDF2HMAC(algorithm=hashes.SHA256(),
+ length=32,
+ salt=self._SALT,
+ iterations=320000,
+ backend=default_backend())
+ secret = secret.derive(password)
+ secret = Fernet(base64.urlsafe_b64encode(secret))
+
+ return secret
+
+ def _ask(self, question: str='', *, secret: bool=False) -> str:
+ while True:
+ if secret:
+ answer = getpass.getpass(question)
+ else:
+ answer = input(question)
+
+ if answer:
+ return answer
+
+ def run(self) -> None:
+ while True:
+ Console.WINDOW.addstr(Console.INPUT_LINES, 0, Console.INPUT_PREFIX)
+ msg = Console.WINDOW.getstr(Console.INPUT_LINES,
+ Console.INPUT_PREFIX_LEN,
+ self.max_input_len)
+ msg = msg.decode(DEFAULT_ENCODING, errors=LIBERAL_ENCODING_ERRORS)
+ Console.WINDOW.refresh()
+ self.client.send({'username': self.username, 'msg': msg})
+
+if __name__ == '__main__':
+ Main(40, 140, '02').run()
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..677518a
--- /dev/null
+++ b/README.md
@@ -0,0 +1,45 @@
+# PY-CHAT
+Create or join a private chatroom without any third-party middlemen in less than 30 seconds, available through an AES encrypted password protected link.
+
+## Usage
+**Creating a chatroom**
+1. Enter "create"
+2. Enter your address
+ * **Example:** localhost
+ * **Example:** localhost:5555
+3. Enter your forwarded port address (optional)
+ * **Example:** 2.tcp.eu.ngrok.io:18413
+4. Choose your chatroom password (hidden)
+5. Save the chatroom link
+6. Choose your username
+
+**Joining a chatroom**
+1. Enter "join"
+2. Paste the chatroom link
+3. Enter the chatroom password (hidden)
+4. Choose your username
+
+## Features
+* AES Encrypted Link
+* TLS Encrypted Messages
+* Forwarded Port Support
+* Connect / Disconnect Notices
+
+---
+
+## Requirements
+* [Python 3.8+](https://www.python.org/downloads/release/python-380)
+* cryptography
+* curses
+
+## Installation
+* git clone https://git.alvinhavel.com/PY-CHAT && cd cd PY-CHAT
+* **Windows**
+ * pip install cryptography pyinstaller pipwin && pipwin install curses
+ * python PY-CHAT.py
+* **Mac / Linux**
+ * pip3 install cryptography curses pyinstaller
+ * python3 PY-CHAT.py
+
+## Executable
+* pyinstaller -F -i PY-CHAT.ico PY-CHAT.py
diff --git a/protocol.py b/protocol.py
new file mode 100644
index 0000000..55b8f72
--- /dev/null
+++ b/protocol.py
@@ -0,0 +1,413 @@
+# Modified Source From: https://git.alvinhavel.com/PY-NET/plain/shared.py
+
+import ipaddress
+import platform
+import base64
+import socket
+# import uuid
+import zlib
+import json
+import ssl
+import re
+
+from typing import Callable
+from typing import Optional
+from typing import Union
+from typing import Tuple
+from typing import Dict
+from typing import Any
+
+DEFAULT_HOSTNAME = 'localhost'
+DEFAULT_PORT = 38567 # 38568
+DEFAULT_ENCODING = 'utf-8'
+DEFAULT_LANGUAGE_CODE = 65001
+STRICT_ENCODING_ERRORS = 'strict'
+LIBERAL_ENCODING_ERRORS = 'replace'
+
+class Platform:
+
+ PLATFORM = platform.system()
+ WINDOWS = PLATFORM == 'Windows'
+ LINUX = PLATFORM == 'Linux'
+ MAC = PLATFORM == 'Mac'
+ UNIX = LINUX or MAC
+
+class ExtendedEncoder(json.JSONEncoder):
+
+ def default(self, obj: Any) -> Any:
+ if isinstance(obj, bytes):
+ return base64.b64encode(obj).decode(DEFAULT_ENCODING,
+ errors=STRICT_ENCODING_ERRORS)
+
+ return json.JSONEncoder.default(self, obj)
+
+class ExtendedDecoder(json.JSONDecoder):
+
+ def default(self, obj: Any) -> Any:
+ if isinstance(obj, bytes):
+ return base64.b64decode(obj.encode(DEFAULT_ENCODING,
+ errors=STRICT_ENCODING_ERRORS))
+
+ return json.JSONDecoder.default(self, obj)
+
+class Bytes:
+
+ LABELS = ('B', 'kB', 'MB', 'GB')
+ LAST_LABEL = LABELS[-1]
+ UNIT_STEP = 1024
+ UNIT_STEP_THRESH = UNIT_STEP - 0.005
+
+ @staticmethod
+ def format(num: Union[int, float]) -> str:
+ assert isinstance(num, (int, float)), f'Wrong type: {num=}'
+ assert num >= 0, f'Wrong value: {num=}'
+
+ for unit in Bytes.LABELS:
+ if num < Bytes.UNIT_STEP_THRESH:
+ break
+
+ if unit != Bytes.LAST_LABEL:
+ num /= Bytes.UNIT_STEP
+
+ return f'{num:.2f} {unit}'
+
+class Socket:
+
+ def __init__(
+ self,
+ hostname: str,
+ port: int,
+ *,
+ conn: Optional[Union[socket.socket, ssl.SSLSocket]]=None,
+ server_side: bool=False,
+ is_host: bool=False
+ ) -> None:
+ assert isinstance(hostname, str), f'Wrong type: {hostname=}'
+ assert isinstance(port, int), f'Wrong type: {port=}'
+ assert port >= 1024 and port <= 65535, f'Wrong value: {port=}'
+ assert isinstance(conn, (socket.socket, ssl.SSLSocket)) or conn is None, f'Wrong type: {conn=}'
+ assert isinstance(server_side, bool), f'Wrong type: {server_side=}'
+ assert isinstance(is_host, bool), f'Wrong type: {is_host=}'
+
+ dns_resolved_ip = socket.gethostbyname(hostname)
+ self.ip = ipaddress.ip_address(dns_resolved_ip)
+ self.port = port
+ self.conn = conn
+ self.server_side = server_side
+ self.is_host = is_host
+
+ if self.server_side:
+ self.hostname = hostname if hostname != dns_resolved_ip else None
+ self.data_wrap = None
+ self.data_wrap_notes = None
+
+ if self.is_host:
+ self.in_session = None
+ self.ENCODING = None
+ else:
+ self.in_session = False
+ else:
+ assert not self.is_host, f'Wrong value: {self.is_host=}'
+
+ if not self.is_host:
+ UUID_REGEX = r'^[\da-f]{8}-([\da-f]{4}-){3}[\da-f]{12}$'
+ self.UUID_PATTERN = re.compile(UUID_REGEX, re.IGNORECASE)
+ self.ENCODING = DEFAULT_ENCODING
+ self.DEFAULT_BUFFER_SIZE = self.BUFFER_SIZE = 1024
+ self.MAX_BUFFER_SIZE = 65536
+ self.SEND_HEADER_SIZE = 10
+ self.RECV_HEADER_SIZE = 10 # 46
+
+ self.header_send_callback = None
+ self.header_recv_callback = None
+ self.send_callback = None
+ self.recv_callback = None
+ # self.uuid_token = None
+
+ def __enter__(self) -> Union[socket.socket, ssl.SSLSocket]:
+ assert self.conn, f'Missing attribute: {self.conn=}'
+ return self.conn
+
+ def __exit__(self, *_) -> None:
+ self.close()
+
+ def __str__(self) -> str:
+ if self.server_side:
+ return f'tcp://{self.ip}:{self.port}'
+ else:
+ return super().__str__()
+
+ def address(self) -> Tuple[str, ...]:
+ assert self.server_side, f'Wrong value: {self.server_side=}'
+ return (self.data_wrap, self.in_session, str(self), self.hostname, self.ENCODING, self.data_wrap_notes)
+
+ def address_headers(self) -> Tuple[str, ...]:
+ assert self.server_side, f'Wrong value: {self.server_side=}'
+ return ('ID', 'Type', 'In Session', 'Address', 'Hostname', 'Encoding', 'Type Notes')
+
+ def detailed_address(self) -> Tuple[Tuple[Tuple[str, Any], ...], Tuple[str, str]]:
+ assert self.server_side, f'Wrong value: {self.server_side=}'
+ return ((('Type', self.data_wrap),
+ ('In Session', self.in_session),
+ ('Address', str(self)),
+ ('Hostname', self.hostname),
+ ('Encoding', self.ENCODING),
+ ('Type Notes', self.data_wrap_notes),
+ ('Address Type', f'{self.ip.max_prefixlen}-bit IPv{self.ip.version}'),
+ ('Reverse Pointer', self.ip.reverse_pointer),
+ ('Global Address', self.ip.is_global),
+ ('Link Local Address', self.ip.is_link_local),
+ ('Loopback Address', self.ip.is_loopback),
+ ('Multicast Address', self.ip.is_multicast),
+ ('Private Address', self.ip.is_private),
+ ('Reserved Address', self.ip.is_reserved),
+ ('Unspecified Address', self.ip.is_unspecified)),
+ ('Key', 'Value'))
+
+ def close(self) -> None:
+ assert self.conn, f'Missing attribute: {self.conn=}'
+
+ try:
+ self.conn.shutdown(socket.SHUT_RDWR)
+ except Exception:
+ pass
+ finally:
+ self.conn.close()
+
+ def set_conn(self, **kwargs) -> socket.socket:
+ if self.server_side:
+ assert self.is_host, f'Wrong value: {self.is_host=}'
+
+ self.conn = socket.create_server((str(self.ip), self.port), **kwargs)
+ else:
+ self.conn = socket.create_connection((str(self.ip), self.port), **kwargs)
+
+ def set_context(self) -> None:
+ assert self.server_side, f'Wrong value: {self.server_side=}'
+
+ if self.is_host:
+ self.data_wrap = 'HOSTING :: COMP'
+ else:
+ self.data_wrap = 'CONNECTING :: COMP'
+
+ def set_middleware(self) -> None:
+ assert not self.is_host, f'Wrong value: {self.is_host=}'
+
+ self.send_callback = lambda body: zlib.compress(body)
+ self.recv_callback = lambda body: zlib.decompress(body)
+
+ def send(self, obj: Dict[str, Any], callback: Callable[[str, str], None]=None) -> None:
+ assert not self.is_host, f'Wrong value: {self.is_host=}'
+ assert self.conn, f'Missing attribute: {self.conn=}'
+ assert isinstance(obj, dict), f'Wrong type: {obj=}'
+ assert callable(callback) or callback is None, f'Wrong type: {callback=}'
+
+ body = json.dumps(obj, cls=ExtendedEncoder)
+ body = body.encode(self.ENCODING, errors=LIBERAL_ENCODING_ERRORS)
+
+ if self.send_callback:
+ body = self.send_callback(body)
+
+ # if self.server_side:
+ # self.uuid_token = str(uuid.uuid4())
+
+ body_size = len(body)
+ header = str(body_size).ljust(self.SEND_HEADER_SIZE)
+ header = header.encode(DEFAULT_ENCODING, errors=STRICT_ENCODING_ERRORS)
+ # header = (header + self.uuid_token).encode(DEFAULT_ENCODING,
+ # errors=STRICT_ENCODING_ERRORS)
+
+ if self.header_send_callback:
+ header = self.header_send_callback(header)
+
+ if callback:
+ header_size = len(header)
+ callback(Bytes.format(header_size),
+ Bytes.format(body_size),
+ Bytes.format(header_size + body_size))
+
+ self.conn.sendall(header + body)
+
+ def recv(self, callback: Callable[[str, str], None]=None) -> Dict[str, Any]:
+ assert not self.is_host, f'Wrong value: {self.is_host=}'
+ assert self.conn, f'Missing attribute: {self.conn=}'
+ assert callable(callback) or callback is None, f'Wrong type: {callback=}'
+
+ position = 0
+
+ if callback:
+ history = []
+
+ if self.BUFFER_SIZE != self.DEFAULT_BUFFER_SIZE:
+ self.BUFFER_SIZE = self.DEFAULT_BUFFER_SIZE
+
+ while True:
+ buffer = self.conn.recv(self.BUFFER_SIZE)
+
+ assert buffer, f'Missing attribute: {buffer=}'
+
+ buffer_size = len(buffer)
+
+ if position > 0:
+ body[position:position + buffer_size] = buffer
+ position += buffer_size
+ else:
+ header = buffer[:self.RECV_HEADER_SIZE]
+
+ if self.header_recv_callback:
+ header = self.header_recv_callback(header)
+
+ assert isinstance(header, bytes), f'Wrong type: {header=}'
+
+ header = header.decode(DEFAULT_ENCODING, errors=STRICT_ENCODING_ERRORS)
+ # uuid_token = header[self.SEND_HEADER_SIZE:self.RECV_HEADER_SIZE]
+
+ # assert self.UUID_PATTERN.match(uuid_token), f'Wrong value: {uuid_token=}'
+
+ # if self.server_side:
+ # assert uuid_token == self.uuid_token, f'Wrong value: {uuid_token} != {self.uuid_token}'
+ # else:
+ # self.uuid_token = uuid_token
+
+ body_size = int(header[:self.SEND_HEADER_SIZE])
+
+ if body_size >= self.MAX_BUFFER_SIZE:
+ self.BUFFER_SIZE = self.MAX_BUFFER_SIZE
+
+ if callback:
+ bytes_to_recieve = Bytes.format(body_size + self.RECV_HEADER_SIZE)
+
+ body_buffer_size = buffer_size - self.RECV_HEADER_SIZE
+ body = bytearray(body_size)
+ body[:buffer_size] = buffer[self.RECV_HEADER_SIZE:]
+ position += body_buffer_size
+
+ assert position <= body_size, f'Wrong value: {position} > {body_size}'
+
+ if callback:
+ history.append((Bytes.format(buffer_size),
+ Bytes.format(position + self.RECV_HEADER_SIZE),
+ bytes_to_recieve))
+
+ if position == body_size:
+ body = bytes(body)
+
+ if self.recv_callback:
+ body = self.recv_callback(body)
+
+ assert isinstance(body, bytes), f'Wrong type: {body=}'
+
+ body = body.decode(self.ENCODING, errors=LIBERAL_ENCODING_ERRORS)
+ body = json.loads(body, cls=ExtendedDecoder)
+
+ assert isinstance(body, dict), f'Wrong type: {body=}'
+
+ if callback:
+ callback(history)
+
+ return body
+
+class SymmetricSocket(Socket):
+
+ def __init__(
+ self,
+ *args,
+ password: str=None,
+ salt: str=None,
+ **kwargs
+ ) -> None:
+ super().__init__(*args, **kwargs)
+
+ assert isinstance(password, str) or password is None, f'Wrong type: {password=}'
+ assert isinstance(salt, str) or salt is None, f'Wrong type: {salt=}'
+
+ self.password = password
+ self.salt = salt
+
+ def set_context(self) -> None:
+ assert self.server_side, f'Wrong value: {self.server_side=}'
+
+ if self.is_host:
+ self.data_wrap = 'HOSTING :: AES'
+ self.data_wrap_notes = f'{self.password} :: {self.salt}'
+ else:
+ self.data_wrap = 'CONNECTING :: AES'
+ self.data_wrap_notes = 'AES_128_CBC_PKCS7_HMAC_SHA256'
+
+ def set_middleware(self) -> None:
+ assert not self.is_host, f'Wrong value: {self.is_host=}'
+ assert self.password, f'Missing attribute: {self.password=}'
+ assert self.salt, f'Missing attribute: {self.salt=}'
+
+ from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
+ from cryptography.hazmat.backends import default_backend
+ from cryptography.hazmat.primitives import hashes
+ from cryptography.fernet import Fernet
+
+ secret = PBKDF2HMAC(algorithm=hashes.SHA256(),
+ length=32,
+ salt=self.salt.encode(DEFAULT_ENCODING,
+ errors=STRICT_ENCODING_ERRORS),
+ iterations=320000,
+ backend=default_backend())
+ secret = secret.derive(self.password.encode(DEFAULT_ENCODING,
+ errors=STRICT_ENCODING_ERRORS))
+ secret = Fernet(base64.urlsafe_b64encode(secret))
+
+ recv_header_size = ''.ljust(self.RECV_HEADER_SIZE)
+ recv_header_size = recv_header_size.encode(DEFAULT_ENCODING,
+ errors=STRICT_ENCODING_ERRORS)
+ self.RECV_HEADER_SIZE = len(secret.encrypt(recv_header_size))
+ self.header_send_callback = lambda header: secret.encrypt(header)
+ self.header_recv_callback = lambda header: secret.decrypt(header)
+ self.send_callback = lambda body: secret.encrypt(zlib.compress(body))
+ self.recv_callback = lambda body: zlib.decompress(secret.decrypt(body))
+
+class AsymmetricSocket(Socket):
+
+ def __init__(
+ self,
+ *args,
+ public_key: str=None,
+ private_key: str=None,
+ public_key_data: str=None,
+ **kwargs
+ ) -> None:
+ super().__init__(*args, **kwargs)
+
+ assert isinstance(public_key, str) or public_key is None, f'Wrong type: {public_key=}'
+ assert isinstance(private_key, str) or private_key is None, f'Wrong type: {private_key=}'
+ assert isinstance(public_key_data, str) or public_key_data is None, f'Wrong type: {public_key_data=}'
+
+ self.public_key = public_key
+ self.private_key = private_key
+ self.public_key_data = public_key_data
+
+ def set_context(self) -> None:
+ assert self.server_side, f'Wrong value: {self.server_side=}'
+
+ if self.is_host:
+ self.data_wrap = 'HOSTING :: TLS'
+ self.data_wrap_notes = f'{self.public_key} :: {self.private_key}'
+ else:
+ self.data_wrap = 'CONNECTING :: TLS'
+ cipher = self.conn.cipher()
+
+ if cipher:
+ self.data_wrap_notes = ' :: '.join(cipher[:2])
+
+ def set_middleware(self) -> None:
+ if self.server_side:
+ assert self.is_host, f'Wrong value: {self.is_host=}'
+ assert self.public_key, f'Missing attribute: {self.public_key=}'
+ assert self.private_key, f'Missing attribute: {self.private_key=}'
+
+ context = ssl.SSLContext(ssl.PROTOCOL_TLS)
+ context.load_cert_chain(self.public_key, self.private_key)
+ self.conn = context.wrap_socket(self.conn, server_side=True)
+ else:
+ assert self.public_key_data, f'Missing attribute: {self.public_key_data=}'
+
+ context = ssl.SSLContext(ssl.PROTOCOL_TLS)
+ context.load_verify_locations(cadata=self.public_key_data)
+ self.conn = context.wrap_socket(self.conn)