Amazing-Python-Scripts

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# ALL Imports
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import time
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from tkinter.ttk import *
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import tkinter as tk
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from requests import get, HTTPError, ConnectionError
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from re import findall
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from urllib.parse import unquote
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from threading import Thread
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import queue
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from queue import Empty
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def Invalid_Url():
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    """ Sets Status bar label to error message """
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    Status["text"] = "Invalid URL..."
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    Status["fg"] = "red"
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def get_downloadlink(url):
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    url = url.replace("www", "mbasic")
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    try:
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        r = get(url, timeout=5, allow_redirects=True)
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        if r.status_code != 200:
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            raise HTTPError
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        a = findall("/video_redirect/", r.text)
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        if len(a) == 0:
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            print("[!] Video Not Found...")
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            exit(0)
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        else:
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            return unquote(r.text.split("?src=")[1].split('"')[0])
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    except (HTTPError, ConnectionError):
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        print("[x] Invalid URL")
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        exit(1)
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def Download_vid():
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    # Validates Link and download Video
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    global Url_Val
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    url = Url_Val.get()
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    Status["text"] = "Downloading"
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    Status["fg"] = "green"
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    # Validating Input
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    if not "www.facebook.com" in url:
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        Invalid_Url()
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        return
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    link = get_downloadlink(url)
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    start_downloading()
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    download_thread = VideoDownload(link)
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    download_thread.start()
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    monitor(download_thread)
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def monitor(download_thread):
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    """ Monitor the download thread """
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    if download_thread.is_alive():
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        try:
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            bar["value"] = queue.get(0)
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            ld_window.after(10, lambda: monitor(download_thread))
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        except Empty:
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            pass
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class VideoDownload(Thread):
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    def __init__(self, url):
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        super().__init__()
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        self.url = url
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    def run(self):
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        """ download video"""
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        # save the picture to a file
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        block_size = 1024  # 1kB
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        r = get(self.url, stream=True)
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        total_size = int(r.headers.get("content-length"))
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        with open('video.mp4', 'wb') as file:
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            totaldata = 0
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            for data in r.iter_content(block_size):
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                totaldata += len(data)
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                per_downloaded = totaldata*100/total_size
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                queue.put(per_downloaded)
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                bar['value'] = per_downloaded
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                file.write(data)
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                time.sleep(0.01)
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            file.close()
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            print("Download Finished")
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        print("Download Complete !!!")
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        Status["text"] = "Finished!!"
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        Status["fg"] = "green"
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# start download
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def start_downloading():
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    bar["value"] = 0
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# GUI
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ld_window = tk.Tk()
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ld_window.title("Facebook Video Downloader")
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ld_window.geometry("400x300")
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# Label for URL Input
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input_label = tk.Label(ld_window, text="Enter Facebook Video URL:")
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input_label.pack()
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# Input of URL
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Url_Val = tk.StringVar()
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Url_Input = tk.Entry(ld_window, textvariable=Url_Val, font=("Calibri", 9))
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Url_Input.place(x=25, y=50, width=350)
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# Button for Download
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Download_button = tk.Button(ld_window, text="Download", font=(
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    "Calibri", 9), command=Download_vid)
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Download_button.place(x=100, y=100, width=200)
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# Progress Bar
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bar = Progressbar(ld_window, length=350,
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                  style='grey.Horizontal.TProgressbar', mode='determinate')
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bar.place(y=200, width=350, x=25)
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queue = queue.Queue()
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# Text for Status of Downloading
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Status = tk.Label(ld_window, text="Hello!! :D", fg="blue", font=(
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    "Calibri", 9), bd=1, relief=tk.SUNKEN, anchor=tk.W, padx=3)
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Status.pack(side=tk.BOTTOM, fill=tk.X)
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ld_window.mainloop()
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