|
| 1 | +import re |
| 2 | +import sys |
| 3 | +import random |
| 4 | +import requests |
| 5 | +import werkzeug |
| 6 | + |
| 7 | + |
| 8 | +class Downloader: |
| 9 | + def __init__(self, url): |
| 10 | + self.url = url |
| 11 | + |
| 12 | + def validate_url(self) -> bool: |
| 13 | + response = requests.get(self.url, stream=True) |
| 14 | + if response.status_code in range(200, 299): |
| 15 | + return True |
| 16 | + else: |
| 17 | + return False |
| 18 | + |
| 19 | + def headers(self) -> dict: |
| 20 | + response = requests.head(self.url) |
| 21 | + |
| 22 | + filename = response.headers.get("Content-Disposition") |
| 23 | + filesize = response.headers.get("Content-Length") |
| 24 | + filetype = response.headers.get("Content-Type").split(";")[0] |
| 25 | + |
| 26 | + if filename: |
| 27 | + parsed_headers = werkzeug.http.parse_options_header( |
| 28 | + re.findall("filename=(.+)", filename)[0] |
| 29 | + ) |
| 30 | + |
| 31 | + for keys in parsed_headers: |
| 32 | + if "filename" in keys: |
| 33 | + filename = keys["filename"] |
| 34 | + return {"filename": filename, "filesize": filesize, "filetype": filetype} |
| 35 | + else: |
| 36 | + if "image" in filetype: |
| 37 | + return { |
| 38 | + "filename": "download.jpg", |
| 39 | + "filesize": filesize, |
| 40 | + "filetype": filetype, |
| 41 | + } |
| 42 | + else: |
| 43 | + return { |
| 44 | + "filename": "download.html", |
| 45 | + "filesize": filesize, |
| 46 | + "filetype": filetype, |
| 47 | + } |
| 48 | + |
| 49 | + def get_file_chunks(self, filename: str = None): |
| 50 | + file_info = self.headers() |
| 51 | + file_name = file_info["filename"] |
| 52 | + response = requests.get(self.url, stream=True) |
| 53 | + |
| 54 | + if filename: |
| 55 | + file_name = filename |
| 56 | + |
| 57 | + with open(file_name, "wb") as file: |
| 58 | + if file_info["filesize"]: |
| 59 | + size = int(file_info["filesize"]) |
| 60 | + current = 0 |
| 61 | + for chunk in response.iter_content(chunk_size=4096): |
| 62 | + current += len(chunk) |
| 63 | + downloaded = current / size * 100 |
| 64 | + file.write(chunk) |
| 65 | + else: |
| 66 | + file.write(requests.get(self.url, stream=True).content) |
| 67 | + |
| 68 | + return file_name |
| 69 | + |
| 70 | + def save(self, filename: str = None): |
| 71 | + if filename: |
| 72 | + self.get_file_chunks(filename) |
| 73 | + return True |
| 74 | + else: |
| 75 | + self.get_file_chunks() |
| 76 | + return True |
| 77 | + return False |
0 commit comments