clone_channel.py

import requests
import json
import re
from requests_toolbelt.multipart.encoder import MultipartEncoder
WEBHOOK = ""
TOKEN = ""
CHANNEL_ID = ""
AVATAR_URL = lambda uid, aid: f"https://cdn.discordapp.com/avatars/{uid}/{aid}.webp?size=96" 
EMOJI = lambda name, id: f"[{name}](https://media.discordapp.net/emojis/{id}.webp?size=48&quality=lossless&name={name})"
STICKER = lambda name, id: f"[{name}](https://media.discordapp.net/stickers/{id}.webp?size=240)"
def REMOVE_EVERYONE(content):
    return content.replace("@everyone", "@noone")

def EMOJI_FIX(content):
    return re.sub(r"<:(.*?):(\d*?)>", r"[\1](https://media.discordapp.net/emojis/\2.webp?size=48&quality=lossless&name=\1)", content)

def STICKER_FIX(content, stickers):
    for sticker in stickers:
        content += f"\n{STICKER(sticker['name'], sticker['id'])}"
    return content
def POLL_FIX(content, poll):
    if poll is None:
        return content
    content += f"\n# {poll['question']['text']} {' **(final)**' if poll['results']['is_finalized'] else ''}"
    for answer in poll["answers"]:
        media = answer["poll_media"]
        answer_count = [x for x in poll['results']['answer_counts'] if x["id"] == answer["answer_id"]][0]
        if "emoji" in media:
            content += f"\n\t{EMOJI(media['emoji']['name'], media['emoji']['id'])} {media['text']}: {answer_count['count']} votes"
        else:
            content += f"\n\t{media['text']}: {answer_count['count']} votes"
    return content
LAST_KNOWN_MSG_FILE = ".last_known_msg_id"
headers = {
    "Authorization": TOKEN,
}
last_sent_id = 0
try:
    with open(LAST_KNOWN_MSG_FILE, "r") as f:
        val = f.read()
        try:
            last_sent_id = int(val)
        except Exception:
            pass
except FileNotFoundError:
    pass
res = requests.get("https://discord.com/api/v9/channels/{CHANNEL_ID}/messages?limit=500", headers=headers)
data = res.json()
data.sort(key=lambda x: int(x["id"]))
data = [x for x in data if int(x["id"]) > last_sent_id]
for x in data:
    x["content"] = REMOVE_EVERYONE(POLL_FIX(STICKER_FIX(EMOJI_FIX(x["content"]), x["sticker_items"] if "sticker_items" in x else []), x["poll"] if "poll" in x else None))
    
for x in data:
    webhook_json = {
        "content": x["content"],
        "username": x["author"]["username"],
        "avatar_url": AVATAR_URL(x["author"]["id"], x["author"]["avatar"]),
    }
    attachments = [(x["filename"], requests.get(x['url']).content, x['content_type']) for x in x["attachments"]]
    fields = {
        "payload_json": (None, json.dumps(webhook_json), "application/json"),
    }
    for i, at in enumerate(attachments):
        fields[f"files[{i}]"] = at
    files = MultipartEncoder(fields=fields)
    requests.post(WEBHOOK, data=files, headers={'Content-Type': files.content_type})
    last_sent_id = int(x["id"])

with open(LAST_KNOWN_MSG_FILE, "w") as f:
    f.write(str(last_sent_id))