241 lines
12 KiB
Python
241 lines
12 KiB
Python
# _____ _
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# / ____| (_)
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# | (___ ___ __ _ _____ ___ _ __ ___ _ __ ___ ___ _ __
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# \___ \ / _ \/ _` / __\ \ /\ / / | '_ ` _ \| '_ ` _ \ / _ \ '__|
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# ____) | __/ (_| \__ \\ V V /| | | | | | | | | | | | __/ |
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# |_____/ \___|\__,_|___/ \_/\_/ |_|_| |_| |_|_| |_| |_|\___|_|
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import asyncio
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import inspect
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import operator
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import re
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from asyncio.subprocess import Process
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from functools import partial, partialmethod
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from typing import Any
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import aiohttp
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import yaml
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from bs4 import BeautifulSoup
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from discord import Color, Embed, app_commands
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from discord.utils import CachedSlotProperty, cached_property
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from markdownify import MarkdownConverter
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from redbot.core import commands
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from redbot.core.bot import Red
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from redbot.core.dev_commands import cleanup_code
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from redbot.core.utils import chat_formatting as cf
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from redbot.core.utils.views import SimpleMenu
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def md(soup: BeautifulSoup, **options) -> Any | str:
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return MarkdownConverter(**options).convert_soup(soup)
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def convert_rfc_references(text: str, number: int) -> str:
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one = re.sub(r"\(\.\/rfc(\d+)", r"(https://www.rfc-editor.org/rfc/rfc\1.html", text)
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two = re.sub(r"\((#(?:section|page)-\d+(?:.\d+)?)\)", f"(https://www.rfc-editor.org/rfc/rfc{number}.html\1)", one)
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return two
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class SeaUtils(commands.Cog):
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"""A collection of random utilities."""
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__author__ = ["SeaswimmerTheFsh"]
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__version__ = "1.0.0"
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def __init__(self, bot: Red):
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self.bot = bot
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def format_help_for_context(self, ctx: commands.Context) -> str:
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pre_processed = super().format_help_for_context(ctx) or ""
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n = "\n" if "\n\n" not in pre_processed else ""
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text = [
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f"{pre_processed}{n}",
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f"Cog Version: **{self.__version__}**",
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f"Author: {cf.humanize_list(self.__author__)}"
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]
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return "\n".join(text)
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def format_src(self, obj: Any) -> str:
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"""A large portion of this code is repurposed from Zephyrkul's RTFS cog.
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https://github.com/Zephyrkul/FluffyCogs/blob/master/rtfs/rtfs.py"""
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obj = inspect.unwrap(obj)
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src: Any = getattr(obj, "__func__", obj)
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if isinstance(obj, (commands.Command, app_commands.Command)):
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src = obj.callback
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elif isinstance(obj, (partial, partialmethod)):
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src = obj.func
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elif isinstance(obj, property):
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src = obj.fget
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elif isinstance(obj, (cached_property, CachedSlotProperty)):
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src = obj.function
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return inspect.getsource(src)
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@commands.command(aliases=["source", "src", "code", "showsource"])
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@commands.is_owner()
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async def showcode(self, ctx: commands.Context, *, object: str): # pylint: disable=redefined-builtin
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"""Show the code for a particular object."""
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try:
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if object.startswith("/") and (obj := ctx.bot.tree.get_command(object[1:])):
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text = self.format_src(obj)
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elif obj := ctx.bot.get_cog(object):
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text = self.format_src(type(obj))
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elif obj := ctx.bot.get_command(object):
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text = self.format_src(obj)
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temp_content = cf.pagify(
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text=cleanup_code(text),
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escape_mass_mentions=True,
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page_length = 1977
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)
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content = []
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max_i = operator.length_hint(temp_content)
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i = 1
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for page in temp_content:
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content.append(f"**Page {i}/{max_i}**\n{cf.box(page, lang='py')}")
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i += 1
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await SimpleMenu(pages=content, disable_after_timeout=True, timeout=180).start(ctx)
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except (OSError, AttributeError, UnboundLocalError):
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if ctx.embed_requested():
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embed = Embed(title="Object not found!", color=await ctx.embed_color())
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await ctx.send(embed=embed, reference=ctx.message.to_reference(fail_if_not_exists=False))
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else:
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await ctx.send(content="Object not found!", reference=ctx.message.to_reference(fail_if_not_exists=False))
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@commands.command(name='dig', aliases=['dnslookup', 'nslookup'])
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@commands.is_owner()
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async def dig(self, ctx: commands.Context, name: str, type: str | None = None, server: str | None = None, port: int = 53) -> None:
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"""Retrieve DNS information for a domain.
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Uses `dig` to perform a DNS query. Will fall back to `nslookup` if `dig` is not installed on the system.
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`nslookup` does not provide as much information as `dig`, so only the `name` parameter will be used if `nslookup` is used.
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Will return the A, AAAA, and CNAME records for a domain by default. You can specify a different record type with the `type` parameter."""
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command_opts: list[str | int] = ['dig']
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query_types = [type] if type else ['A', 'AAAA', 'CNAME']
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if server:
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command_opts.extend(['@', server])
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for query_type in query_types:
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command_opts.extend([name, query_type])
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command_opts.extend(['-p', str(port), '+yaml'])
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try:
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process: Process = await asyncio.create_subprocess_exec(*command_opts, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE)
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stdout, stderr = await process.communicate()
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if stderr:
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await ctx.maybe_send_embed(message="An error was encountered!\n" + cf.box(text=stderr.decode()))
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else:
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data = yaml.safe_load(stdout.decode())
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message_data: dict = data[0]['message']
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response_data: dict = message_data['response_message_data']
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if ctx.embed_requested():
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embed = Embed(
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title="DNS Query Result",
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color=await ctx.embed_color(),
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timestamp=message_data['response_time']
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)
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embed.add_field(name="Response Address", value=message_data['response_address'], inline=True)
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embed.add_field(name="Response Port", value=message_data['response_port'], inline=True)
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embed.add_field(name="Query Address", value=message_data['query_address'], inline=True)
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embed.add_field(name="Query Port", value=message_data['query_port'], inline=True)
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embed.add_field(name="Status", value=response_data['status'], inline=True)
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embed.add_field(name="Flags", value=response_data['flags'], inline=True)
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if response_data.get('status') != 'NOERROR':
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embed.colour = Color.red()
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embed.description = cf.error("Dig query did not return `NOERROR` status.")
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questions = []
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answers = []
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authorities = []
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for m in data:
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response = m['message']['response_message_data']
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if 'QUESTION_SECTION' in response:
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for question in response['QUESTION_SECTION']:
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if question not in questions:
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questions.append(question)
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if 'ANSWER_SECTION' in response:
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for answer in response['ANSWER_SECTION']:
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if answer not in answers:
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answers.append(answer)
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if 'AUTHORITY_SECTION' in response:
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for authority in response['AUTHORITY_SECTION']:
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if authority not in authorities:
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authorities.append(authority)
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if questions:
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question_section = "\n".join(questions)
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embed.add_field(name="Question Section", value=f"{cf.box(text=question_section, lang='prolog')}", inline=False)
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if answers:
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answer_section = "\n".join(answers)
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if len(answer_section) > 1024:
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embed.description = cf.warning("Answer section is too long to fit within embed field, falling back to description.") + cf.box(answer_section)
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else:
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embed.add_field(name="Answer Section", value=f"{cf.box(text=answer_section, lang='prolog')}", inline=False)
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if authorities:
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authority_section = "\n".join(authorities)
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embed.add_field(name="Authority Section", value=f"{cf.box(text=authority_section, lang='prolog')}", inline=False)
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await ctx.send(embed=embed)
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else:
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await ctx.send(content=cf.box(text=stdout, lang='yaml'))
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except (FileNotFoundError):
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try:
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ns_process = await asyncio.create_subprocess_exec('nslookup', name, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE)
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ns_stdout, ns_stderr = await ns_process.communicate()
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if ns_stderr:
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await ctx.maybe_send_embed(message="An error was encountered!\n" + cf.box(text=ns_stderr.decode()))
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else:
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warning = cf.warning("`dig` is not installed! Defaulting to `nslookup`.\nThis command provides more information when `dig` is installed on the system.\n")
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if await ctx.embed_requested():
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embed = Embed(
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title="DNS Query Result",
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color=await ctx.embed_color(),
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timestamp=ctx.message.created_at
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)
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embed.description = warning + cf.box(text=ns_stdout.decode())
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await ctx.send(embed=embed)
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else:
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await ctx.send(content= warning + cf.box(text=ns_stdout.decode()))
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except (FileNotFoundError):
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await ctx.maybe_send_embed(message=cf.error("Neither `dig` nor `nslookup` are installed on the system. Unable to resolve DNS query."))
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@commands.command()
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async def rfc(self, ctx: commands.Context, number: int) -> None:
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"""Retrieve the text of an RFC document."""
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url = f"https://www.rfc-editor.org/rfc/rfc{number}.html"
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async with aiohttp.ClientSession() as session:
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async with session.get(url=url) as response:
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if response.status == 200:
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html = await response.text()
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soup = BeautifulSoup(html, 'html.parser')
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pre_tags = soup.find_all('pre')
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content: list[Embed | str] = []
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for pre_tag in pre_tags:
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text = convert_rfc_references(md(pre_tag), number)
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if len(text) > 4096:
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pagified_text = cf.pagify(text, delims=["\n\n"], page_length=4096)
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for page in pagified_text:
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if await ctx.embed_requested():
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embed = Embed(
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title=f"RFC Document {number}",
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description=page,
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color=await ctx.embed_color()
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)
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content.append(embed)
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else:
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content.append(page)
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else:
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if await ctx.embed_requested():
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embed = Embed(
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title=f"RFC Document {number}",
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description=text,
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color=await ctx.embed_color()
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)
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content.append(embed)
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else:
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content.append(text)
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if await ctx.embed_requested():
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for embed in content:
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embed.set_footer(text=f"Page {content.index(embed) + 1}/{len(content)}")
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await SimpleMenu(pages=content, disable_after_timeout=True, timeout=300).start(ctx)
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else:
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await ctx.maybe_send_embed(content=cf.error(f"An error occurred while fetching RFC {number}. Status code: {response.status}."))
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