soimort/you-get

发现报issue有点麻烦了，所以直接post到这里。
问题：B站使用cookies下载视频可能会失败
版本：0.4.1545
命令：

you-get --cookies <your-firefox-profile-path>\cookies.sqlite -i https://www.bilibili.com/video/BV1744y1h7CM

traceback：

Traceback (most recent call last):                                                             
  File "e:\python39\lib\runpy.py", line 197, in _run_module_as_main                            
    return _run_code(code, main_globals, None,                                                 
  File "e:\python39\lib\runpy.py", line 87, in _run_code                                       
    exec(code, run_globals)                                                                    
  File "E:\Python39\Scripts\you-get.exe\__main__.py", line 7, in <module>                      
  File "e:\python39\lib\site-packages\you_get\__main__.py", line 92, in main                   
    main(**kwargs)                                                                             
  File "e:\python39\lib\site-packages\you_get\common.py", line 1834, in main                   
    script_main(any_download, any_download_playlist, **kwargs)                                 
  File "e:\python39\lib\site-packages\you_get\common.py", line 1716, in script_main            
    download_main(                                                                             
  File "e:\python39\lib\site-packages\you_get\common.py", line 1348, in download_main          
    download(url, **kwargs)                                                                    
  File "e:\python39\lib\site-packages\you_get\common.py", line 1825, in any_download           
    m.download(url, **kwargs)                                                                  
  File "e:\python39\lib\site-packages\you_get\extractor.py", line 48, in download_by_url       
    self.prepare(**kwargs)                                                                     
  File "e:\python39\lib\site-packages\you_get\extractors\bilibili.py", line 192, in prepar     
e                                                                                              
    initial_state = json.loads(initial_state_text)                                             
  File "e:\python39\lib\json\__init__.py", line 339, in loads                                  
    raise TypeError(f'the JSON object must be str, bytes or bytearray, '                       
TypeError: the JSON object must be str, bytes or bytearray, not NoneType

分析：初步分析发现是在get_content函数中， 无脑将所有cookies都发送出去了，B站那边检测到后就不返回内容。
修复：打算给get_content添加一个cookie_filter参数，只提交相关的cookies。
代码示例：

def bilibili_cookie(cookie):
    retrun 'bilibili' in cookie.domain

def get_content(url, headers={}, decoded=True, cookie_filter=None):
    # 省略无关代码
    if cookies:
        cookie_strings = []
        for cookie in list(cookies):
            if cookie_filter and not cookie_filter(cookie):
                continue
            cookie_strings.append(cookie.name + '=' + cookie.value)
        cookie_headers = {'Cookie': '; '.join(cookie_strings)}
        req.headers.update(cookie_headers)

如果觉得没问题的话我就提交PR修复。