Download all Links from Google Font File

fonts-downloader.py

import requests
import cssutils
from pathlib import Path
import os
from typing import Union


class CSSDownloader:
    def __init__(self, fontdir: str = "./fonts/", baseurl: str = 'https://fonts.gstatic.com/'):
        self.dlurls = list()
        self.baseurl = baseurl
        self.fontdir = fontdir

    @staticmethod
    def cleanup_srcstring(item: str) -> str:
        return item.split(' format')[0].replace('url(', '').replace(')', '')

    def gen_dllist(self, cssfile: 'Path'):
        fontfile = cssutils.parseFile(cssfile)
        for rule in fontfile:
            try:
                self.dlurls.append(self.cleanup_srcstring(item=rule.style.src))
            except AttributeError:
                continue

    def _path_fromurl(self, url: str, baseurl: str = None, autogendirs: bool = True) -> 'Path':
        if baseurl and self.baseurl != baseurl:
            self.baseurl = baseurl
        exturl = url.replace(self.baseurl, '')
        filepath = Path(exturl)
        if autogendirs and not filepath.parent.exists():
            filepath.parent.mkdir(parents=True, exist_ok=True)
        return filepath

    def _save_content(self, content: Union[str, bytes], filepath: 'Path') -> bool:
        is_written = False
        if isinstance(content, str):
            content = content.encode('utf-8')
        with open(filepath, "wb") as f:
            f.write(content)
            is_written = True
        return is_written

    def _download(self, url: str):
        resp = requests.get(url, timeout=10)
        if resp.ok:
            return resp.content

    def create_files(self, cssfile: str):
        cssfile = Path(cssfile)
        self.gen_dllist(cssfile=cssfile)
        for url in self.dlurls:
            print(f"download woff from {url}")
            content = self._download(url=url)
            if content:
                filepath = self._path_fromurl(url=url)
                self._save_content(content=content, filepath=filepath)

Requirements:

• Python >=3.7
• cssutils
• requests

Usage:

>>> CSSDownloader(fontdir=<path to store downloaded fonts>, baseurl=<default google fonts>).create_files(cssfile="local_css_file")