2e2378d3ee
All pure stdlib, zero external dependencies: - dns: raw UDP resolver with A/AAAA/MX/NS/TXT/CNAME/PTR/SOA - encode: base64, hex, URL, ROT13 encode/decode - hash: md5/sha1/sha256/sha512 generation + type identification - defang: IOC defanging/refanging for safe sharing - revshell: reverse shell one-liners for 11 languages - cidr: subnet calculator with IP membership check Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
76 lines
2.3 KiB
Python
76 lines
2.3 KiB
Python
"""Plugin: encode and decode strings (base64, hex, URL, ROT13)."""
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from __future__ import annotations
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import base64
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import urllib.parse
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from derp.plugin import command
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_ROT13 = str.maketrans(
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz",
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"NOPQRSTUVWXYZABCDEFGHIJKLMnopqrstuvwxyzabcdefghijklm",
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)
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_ENCODERS: dict[str, tuple[str, callable]] = {
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"b64": ("Base64", lambda t: base64.b64encode(t.encode()).decode()),
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"hex": ("Hex", lambda t: t.encode().hex()),
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"url": ("URL", lambda t: urllib.parse.quote(t, safe="")),
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"rot13": ("ROT13", lambda t: t.translate(_ROT13)),
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}
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_DECODERS: dict[str, tuple[str, callable]] = {
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"b64": ("Base64", lambda t: base64.b64decode(t).decode("utf-8", errors="replace")),
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"hex": ("Hex", lambda t: bytes.fromhex(t).decode("utf-8", errors="replace")),
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"url": ("URL", lambda t: urllib.parse.unquote(t)),
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"rot13": ("ROT13", lambda t: t.translate(_ROT13)),
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}
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_FORMATS = ", ".join(_ENCODERS)
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@command("encode", help=f"Encode text: !encode <{_FORMATS}> <text>")
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async def cmd_encode(bot, message):
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"""Encode text in the specified format."""
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parts = message.text.split(None, 2)
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if len(parts) < 3:
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await bot.reply(message, f"Usage: !encode <{_FORMATS}> <text>")
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return
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fmt = parts[1].lower()
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text = parts[2]
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entry = _ENCODERS.get(fmt)
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if entry is None:
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await bot.reply(message, f"Unknown format: {fmt} (valid: {_FORMATS})")
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return
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try:
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result = entry[1](text)
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await bot.reply(message, result)
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except Exception as exc:
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await bot.reply(message, f"Encode error: {exc}")
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@command("decode", help=f"Decode text: !decode <{_FORMATS}> <text>")
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async def cmd_decode(bot, message):
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"""Decode text from the specified format."""
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parts = message.text.split(None, 2)
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if len(parts) < 3:
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await bot.reply(message, f"Usage: !decode <{_FORMATS}> <text>")
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return
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fmt = parts[1].lower()
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text = parts[2]
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entry = _DECODERS.get(fmt)
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if entry is None:
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await bot.reply(message, f"Unknown format: {fmt} (valid: {_FORMATS})")
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return
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try:
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result = entry[1](text)
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await bot.reply(message, result)
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except Exception as exc:
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await bot.reply(message, f"Decode error: {exc}")
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