244 lines
6.8 KiB
Python
244 lines
6.8 KiB
Python
#!/usr/bin/env python3
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"""
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wsdump.py
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websocket - WebSocket client library for Python
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Copyright 2023 engn33r
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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import argparse
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import code
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import gzip
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import ssl
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import sys
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import threading
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import time
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import zlib
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from urllib.parse import urlparse
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import websocket
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try:
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import readline
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except ImportError:
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pass
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def get_encoding() -> str:
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encoding = getattr(sys.stdin, "encoding", "")
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if not encoding:
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return "utf-8"
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else:
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return encoding.lower()
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OPCODE_DATA = (websocket.ABNF.OPCODE_TEXT, websocket.ABNF.OPCODE_BINARY)
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ENCODING = get_encoding()
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class VAction(argparse.Action):
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def __call__(
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self,
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parser: argparse.Namespace,
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args: tuple,
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values: str,
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option_string: str = None,
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) -> None:
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if values is None:
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values = "1"
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try:
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values = int(values)
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except ValueError:
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values = values.count("v") + 1
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setattr(args, self.dest, values)
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def parse_args() -> argparse.Namespace:
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parser = argparse.ArgumentParser(description="WebSocket Simple Dump Tool")
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parser.add_argument(
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"url", metavar="ws_url", help="websocket url. ex. ws://echo.websocket.events/"
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)
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parser.add_argument("-p", "--proxy", help="proxy url. ex. http://127.0.0.1:8080")
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parser.add_argument(
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"-v",
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"--verbose",
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default=0,
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nargs="?",
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action=VAction,
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dest="verbose",
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help="set verbose mode. If set to 1, show opcode. "
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"If set to 2, enable to trace websocket module",
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)
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parser.add_argument(
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"-n", "--nocert", action="store_true", help="Ignore invalid SSL cert"
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)
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parser.add_argument("-r", "--raw", action="store_true", help="raw output")
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parser.add_argument("-s", "--subprotocols", nargs="*", help="Set subprotocols")
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parser.add_argument("-o", "--origin", help="Set origin")
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parser.add_argument(
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"--eof-wait",
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default=0,
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type=int,
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help="wait time(second) after 'EOF' received.",
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)
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parser.add_argument("-t", "--text", help="Send initial text")
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parser.add_argument(
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"--timings", action="store_true", help="Print timings in seconds"
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)
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parser.add_argument("--headers", help="Set custom headers. Use ',' as separator")
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return parser.parse_args()
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class RawInput:
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def raw_input(self, prompt: str = "") -> str:
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line = input(prompt)
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if ENCODING and ENCODING != "utf-8" and not isinstance(line, str):
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line = line.decode(ENCODING).encode("utf-8")
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elif isinstance(line, str):
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line = line.encode("utf-8")
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return line
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class InteractiveConsole(RawInput, code.InteractiveConsole):
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def write(self, data: str) -> None:
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sys.stdout.write("\033[2K\033[E")
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# sys.stdout.write("\n")
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sys.stdout.write("\033[34m< " + data + "\033[39m")
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sys.stdout.write("\n> ")
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sys.stdout.flush()
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def read(self) -> str:
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return self.raw_input("> ")
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class NonInteractive(RawInput):
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def write(self, data: str) -> None:
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sys.stdout.write(data)
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sys.stdout.write("\n")
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sys.stdout.flush()
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def read(self) -> str:
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return self.raw_input("")
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def main() -> None:
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start_time = time.time()
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args = parse_args()
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if args.verbose > 1:
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websocket.enableTrace(True)
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options = {}
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if args.proxy:
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p = urlparse(args.proxy)
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options["http_proxy_host"] = p.hostname
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options["http_proxy_port"] = p.port
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if args.origin:
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options["origin"] = args.origin
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if args.subprotocols:
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options["subprotocols"] = args.subprotocols
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opts = {}
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if args.nocert:
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opts = {"cert_reqs": ssl.CERT_NONE, "check_hostname": False}
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if args.headers:
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options["header"] = list(map(str.strip, args.headers.split(",")))
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ws = websocket.create_connection(args.url, sslopt=opts, **options)
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if args.raw:
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console = NonInteractive()
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else:
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console = InteractiveConsole()
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print("Press Ctrl+C to quit")
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def recv() -> tuple:
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try:
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frame = ws.recv_frame()
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except websocket.WebSocketException:
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return websocket.ABNF.OPCODE_CLOSE, ""
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if not frame:
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raise websocket.WebSocketException(f"Not a valid frame {frame}")
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elif frame.opcode in OPCODE_DATA:
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return frame.opcode, frame.data
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elif frame.opcode == websocket.ABNF.OPCODE_CLOSE:
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ws.send_close()
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return frame.opcode, ""
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elif frame.opcode == websocket.ABNF.OPCODE_PING:
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ws.pong(frame.data)
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return frame.opcode, frame.data
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return frame.opcode, frame.data
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def recv_ws() -> None:
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while True:
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opcode, data = recv()
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msg = None
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if opcode == websocket.ABNF.OPCODE_TEXT and isinstance(data, bytes):
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data = str(data, "utf-8")
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if (
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isinstance(data, bytes) and len(data) > 2 and data[:2] == b"\037\213"
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): # gzip magick
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try:
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data = "[gzip] " + str(gzip.decompress(data), "utf-8")
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except:
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pass
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elif isinstance(data, bytes):
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try:
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data = "[zlib] " + str(
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zlib.decompress(data, -zlib.MAX_WBITS), "utf-8"
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)
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except:
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pass
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if isinstance(data, bytes):
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data = repr(data)
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if args.verbose:
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msg = f"{websocket.ABNF.OPCODE_MAP.get(opcode)}: {data}"
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else:
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msg = data
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if msg is not None:
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if args.timings:
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console.write(f"{time.time() - start_time}: {msg}")
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else:
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console.write(msg)
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if opcode == websocket.ABNF.OPCODE_CLOSE:
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break
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thread = threading.Thread(target=recv_ws)
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thread.daemon = True
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thread.start()
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if args.text:
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ws.send(args.text)
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while True:
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try:
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message = console.read()
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ws.send(message)
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except KeyboardInterrupt:
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return
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except EOFError:
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time.sleep(args.eof_wait)
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return
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if __name__ == "__main__":
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try:
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main()
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except Exception as e:
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print(e)
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