[PYTHON] Make a BOT that shortens the URL of Discord

As the title says When the URL is long, when the preview is displayed at the YouTube URL, the above message will not be visible to people using smartphones. I made this BOT because I thought it was inconvenient. Made in python

Finished product

↑ BOT that when the URL is included in the message like this, it will be shortened if the reaction of the lower chain is pressed

Result ↓

The whole program

import discord
import re
import asyncio
from urllib.parse import urlparse

#It's for this TOKEN test, so you can use it separately.
TOKEN = "NzA2MzQwNTMwMDE5MjM3OTQ0.Xq405w.pwRREjj-8N4MKph3QcV9NGb5EIM"
client = discord.Client()

@client.event
async def on_ready():
    print("Ready")

@client.event
async def on_message(message):
    if message.author.bot:
        return

    pattern = "https?://[\w/:%#\$&\?\(\)~\.=\+\-]+"
    url_list = re.findall(pattern, message.content)
    if url_list != []:
        await message.add_reaction("⛓")
        return

@client.event
async def on_reaction_add(reaction, user):
    channel = client.get_channel(reaction.message.channel.id)
    if reaction.count >= 2 and reaction.emoji == "⛓":
        if reaction.count >= 3:
            pass
        else:
            s = reaction.message.content

            pattern = "https?://[\w/:%#\$&\?\(\)~\.=\+\-]+"
            url_list = re.findall(pattern, s)
            url_list[0]
            mes = s.strip(url_list[0])
            parsed_url = urlparse(url_list[0])
            site = '{uri.scheme}://{uri.netloc}/'.format(uri=urlparse(url_list[0]))


            embed = discord.Embed(title=f"{mes}",
                description=f"[Short URL]({url_list[0]})",
                color=0x87cefa)
            embed.set_author(name=reaction.message.author.display_name,
                icon_url=reaction.message.author.avatar_url_as(format="png"))
            embed.set_footer(text=f"{site}")

            await channel.send(embed=embed)
    return

client.run(TOKEN)

(I wrote it hard) Commentary

** First one **

@client.event
async def on_message(message):
    if message.author.bot:
        return

    #This ↑ this ↓
    pattern = "https?://[\w/:%#\$&\?\(\)~\.=\+\-]+"
    url_list = re.findall(pattern, message.content)
    if url_list != []: #Whether the list is empty
        await message.add_reaction("⛓")
        return

This is the place that is called when a message comes, and the favorite is from this ↑ this ↓. The program from this ↑ this ↓ puts the URL included in the message in the list. If the list is empty, add a reaction. The URL guy http://trelab.info/python/python-%E6%AD%A3%E8%A6%8F%E8%A1%A8%E7%8F%BE%E3%81%A7url%E3%81%AE%E4%B8%80%E8%87%B4%E3%83%81%E3%82%A7%E3%83%83%E3%82%AF%E3%80%81%E6%8A%BD%E5%87%BA%E3%82%92%E8%A1%8C%E3%81%86/ Refer to ... No, I'm sorry.

The second

@client.event
async def on_reaction_add(reaction, user):
    channel = client.get_channel(reaction.message.channel.id)
    if reaction.count >= 2 and reaction.emoji == "⛓":
        if reaction.count >= 3:
            pass
        else:
            s = reaction.message.content
            #This ↑ this ↓
            pattern = "https?://[\w/:%#\$&\?\(\)~\.=\+\-]+"
            url_list = re.findall(pattern, s)
            url_list[0]
            mes = s.strip(url_list[0])
            parsed_url = urlparse(url_list[0])
            site = '{uri.scheme}://{uri.netloc}/'.format(uri=urlparse(url_list[0]))


            embed = discord.Embed(title=f"{mes}",
                description=f"[Short URL]({url_list[0]})",
                color=0x87cefa)
            embed.set_author(name=reaction.message.author.display_name,
                icon_url=reaction.message.author.avatar_url_as(format="png"))
            embed.set_footer(text=f"{site}")

            await channel.send(embed=embed)
    return

Where there is a program to send a shortened URL. Called when a reaction is attached. The favorite is from the place where this ↑ this ↓ is written Before that, the one who determines whether the reaction is a chain After this ↑ this ↓

pattern = "https?://[\w/:%#\$&\?\(\)~\.=\+\-]+"
url_list = re.findall(pattern, s)
url_list[0]
#This ↑ this ↓
mes = s.strip(url_list[0])#Take the URL from the message
parsed_url = urlparse(url_list[0])#Remove the extra from the URL
site = '{uri.scheme}://{uri.netloc}/'.format(uri=urlparse(url_list[0]))

Is almost the same as the one I did in the first one After this ↑ this ↓, the URL is taken from the message and the extra one is removed from the URL. The one who removes the extra from the URL https://www.python.ambitious-engineer.com/archives/35 Refer to ...

embed = discord.Embed(title=f"{mes}",
    description=f"[Short URL]({url_list[0]})",
    color=0x87cefa)
embed.set_author(name=reaction.message.author.display_name,
    icon_url=reaction.message.author.avatar_url_as(format="png"))
embed.set_footer(text=f"{site}")

await channel.send(embed=embed)

This is the one that sends the shortened one with embed

This completes

Finally

Hmm can not think of

the end