2022-07-04 21:52:48 +02:00
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#!/usr/bin/env python3
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import argparse
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import json
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import os
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import socketserver
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import tempfile
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from pathlib import Path
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ARGS = None
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HTML_TEMPLATE = """\
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<!doctype html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>{title}</title>
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<style>
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body {{ max-width: 40em; }}
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</style>
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</head>
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<body>
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{content}
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</body>
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</html>
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"""
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class Handler(socketserver.StreamRequestHandler):
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def handle(self):
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fragments = []
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while (chunk := self.request.recv(4096)):
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fragments.append(chunk)
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data = b"".join(fragments)
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try:
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first_zero = data.index(b"\0")
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header_data, data = data[:first_zero], data[first_zero + 1:]
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header = json.loads(header_data.decode())
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except (ValueError, IndexError):
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print("Bad header.")
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return
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if header.get("type") == "txt":
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file_name = write_text(data, title=header.get("title"))
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else:
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print("Unknown type.")
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return
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2022-07-05 16:42:15 +02:00
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if not file_name:
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return
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2022-07-04 21:52:48 +02:00
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print(f"{len(data)} bytes — {header} — '{file_name}'.")
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self.request.sendall(file_name.encode())
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def write_text(data: bytes, title=None):
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content = "<pre>{}</pre>".format(data.decode(errors="replace"))
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html = HTML_TEMPLATE.format(title=title or "?", content=content)
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path = str(Path(ARGS.root) / "txt")
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if not os.path.isdir(path):
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2022-07-05 16:42:15 +02:00
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print(f"Missing '{path}' folder.")
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return None
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2022-07-04 21:52:48 +02:00
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with tempfile.NamedTemporaryFile(
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mode="wt",
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dir=path,
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suffix=".html",
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delete=False
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) as output_file:
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output_file.write(html)
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2022-07-05 16:42:15 +02:00
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os.chmod(output_file.name, 0o644)
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2022-07-04 21:52:48 +02:00
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return output_file.name
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def main():
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2022-07-05 16:42:15 +02:00
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argp = argparse.ArgumentParser(description="Share stuff through a socket.")
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2022-07-04 21:52:48 +02:00
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argp.add_argument("root", help="root path where to put files")
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2022-07-05 16:42:15 +02:00
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argp.add_argument("-s", "--socket", help="socket path")
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2022-07-04 21:52:48 +02:00
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global ARGS
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ARGS = argp.parse_args()
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2022-07-05 16:42:15 +02:00
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socket_path = ARGS.socket
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if not socket_path:
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runtime_dir = os.environ.get("RUNTIME_DIRECTORY")
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if not runtime_dir:
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exit("No socket path nor runtime directory specified.")
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socket_path = os.path.join(runtime_dir, "shr.sock")
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print("Socket path:", socket_path)
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2022-07-04 21:52:48 +02:00
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if os.path.exists(socket_path):
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os.unlink(socket_path)
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2022-07-05 16:42:15 +02:00
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2022-07-04 21:52:48 +02:00
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try:
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with socketserver.UnixStreamServer(socket_path, Handler) as server:
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server.serve_forever()
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except KeyboardInterrupt:
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print("Stopping server.")
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finally:
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os.unlink(socket_path)
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if __name__ == "__main__":
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main()
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