X/Twitter - Simple Python3 OAuth 2.0 Authorization (PKCE), Refresh Token and Tweet Action without Tweepy or any 3rd-party libs

Xwitter_createFirstToken.py

## X/Twitter - Simple Python3 OAuth 2.0 Authorization (PKCE), Refresh Token and Tweet Action without Tweepy or any 3rd-party libs.
# Author: intrd@dann.com.br

# Action: Create Refresh Token

import os
import secrets
import string
import requests
from urllib.parse import urlencode
from datetime import datetime, timedelta
import base64
import hashlib

# Set your Twitter API credentials
# API Key and Secret found @ https://developer.twitter.com/en/portal/projects/
client_id = "xxxxOG1pVHxxxxxxxxxxxxxxxxxxxxxxxx"
client_secret = "xxxxxxxxxxxxxxxxAmFlxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

# Set the desired scopes
scopes = ["tweet.read", "users.read", "tweet.write", "offline.access"]

# Generate the PKCE code challenge and code verifier
code_verifier = "".join(secrets.choice(string.ascii_uppercase + string.digits + "-._~") for _ in range(43))
code_challenge = base64.urlsafe_b64encode(hashlib.sha256(code_verifier.encode()).digest()).decode().replace("=", "")

# Build the authorization URL
auth_url = "https://twitter.com/i/oauth2/authorize"
params = {
    "response_type": "code",
    "client_id": client_id,
    "redirect_uri": "http://dann.com.br/callback",
    "scope": " ".join(scopes),
    "code_challenge": code_challenge,
    "code_challenge_method": "S256",
    "state": "some_random_state_value"
}
auth_url += "?" + urlencode(params)

print("Please visit the following URL and authorize the application:")
print(auth_url)
print()

# Prompt the user to enter the authorization code
authorization_code = input("Enter the authorization code: ")

# Exchange the authorization code for an access token
token_url = "https://api.twitter.com/2/oauth2/token"
data = {
    "grant_type": "authorization_code",
    "code": authorization_code,
    "redirect_uri": "http://dann.com.br/callback",
    "client_id": client_id,
    "code_verifier": code_verifier
}
response = requests.post(token_url, data=data, auth=(client_id, client_secret))

if response.status_code == 200:
    access_token = response.json()["access_token"]
    refresh_token = response.json()["refresh_token"]
    expires_in = response.json()["expires_in"]
    print("Access token:", access_token)
    print("Refresh token:", refresh_token)
    print("Token expires in:", expires_in, "seconds")
else:
    print("Error:", response.status_code, response.text)

Xwitter_refreshTokenAndTweet.py

## X/Twitter - Simple Python3 OAuth 2.0 Authorization (PKCE), Refresh Token and Tweet Action without Tweepy or any 3rd-party libs.
# Author: intrd@dann.com.br

# Action: Refresh token and Tweet

import requests, os, time
import os
import time

# Set your Twitter API credentials
# API Key and Secret found @ https://developer.twitter.com/en/portal/projects/
client_id = "xxxxOG1pVHxxxxxxxxxxxxxxxxxxxxxxxx"
client_secret = "xxxxxxxxxxxxxxxxAmFlxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

refresh_token_file = "twitter_refresh_token.txt"
token_expiration_file = "twitter_token_expiration.txt"
access_token_file = "twitter_access_token.txt"

# Check if the access token file exists
if os.path.exists(access_token_file):
    with open(refresh_token_file, "r") as file:
        refresh_token = file.read().strip()
    # Load the access token from the file
    with open(access_token_file, "r") as file:
        access_token = file.read().strip()

    # Check if the token expiration time file exists
    if os.path.exists(token_expiration_file):
        # Load the token expiration time from the file
        with open(token_expiration_file, "r") as file:
            token_expiration_time = float(file.read().strip())

        # Check if the token is expired
        if time.time() > token_expiration_time:
            print("Token is expired, refreshing...")
            # Refresh the access token
            token_url = "https://api.twitter.com/2/oauth2/token"
            data = {
                "grant_type": "refresh_token",
                "refresh_token": refresh_token,
                "client_id": client_id
            }
            response = requests.post(token_url, data=data, auth=(client_id, client_secret))

            if response.status_code == 200:
                access_token = response.json()["access_token"]
                new_refresh_token = response.json()["refresh_token"]
                expires_in = response.json()["expires_in"]
                token_expiration_time = time.time() + expires_in

                print("New access token:", access_token)
                print("New refresh token:", new_refresh_token)
                print("Token expires in:", expires_in, "seconds")

                # Save the new access token and expiration time to the respective files
                with open(access_token_file, "w") as file:
                    file.write(access_token)
                with open(refresh_token_file, "w") as file:
                    file.write(new_refresh_token)
                with open(token_expiration_file, "w") as file:
                    file.write(str(token_expiration_time))
            else:
                print("Error:", response.status_code, response.text)
        else:
            print("Token is still valid, no need to refresh.")
            print("* valid access token")
    else:
        print("Token expiration time file not found, refreshing token...")
else:
    print("Access token file not found, please generate a new access token.")

# Tweet a test message using the access token
if os.path.exists(access_token_file):
    tweet_url = "https://api.twitter.com/2/tweets"
    tweet_text = "This is a test."
    headers = {
        "Authorization": f"Bearer {access_token}",
        "Content-Type": "application/json"
    }
    tweet_data = {
        "text": tweet_text
    }
    tweet_response = requests.post(tweet_url, headers=headers, json=tweet_data)

    if tweet_response.status_code == 201:
        print("Tweet posted successfully!")
    else:
        print("Error posting tweet:", tweet_response.status_code, tweet_response.text)
else:
    print("No access token found, unable to tweet.")