Repository: youtube-dl
Issue: [CDA.PL] Broken site support
Labels: DRM

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## Checklist

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Carefully read and work through this check list in order to prevent the most common mistakes and misuse of youtube-dl:
- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2021.12.17. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
- Make sure that all provided video/audio/playlist URLs (if any) are alive and playable in a browser.
- Make sure that all URLs and arguments with special characters are properly quoted or escaped as explained in http://yt-dl.org/escape.
- Search the bugtracker for similar issues: http://yt-dl.org/search-issues. DO NOT post duplicates.
- Read bugs section in FAQ: http://yt-dl.org/reporting
- Finally, put x into all relevant boxes (like this [x])
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- [x] I'm reporting a broken site support issue
- [x] I've verified that I'm running youtube-dl version **2021.12.17**
- [x] I've checked that all provided URLs are alive and playable in a browser
- [x] I've checked that all URLs and arguments with special characters are properly quoted or escaped
- [x] I've searched the bugtracker for similar bug reports including closed ones
- [ ] I've read bugs section in FAQ


## Verbose log

<!--
Provide the complete verbose output of youtube-dl that clearly demonstrates the problem.
Add the `-v` flag to your command line you run youtube-dl with (`youtube-dl -v <your command line>`), copy the WHOLE output and insert it below. It should look similar to this:
 [debug] System config: []
 [debug] User config: []
 [debug] Command-line args: [u'-v', u'http://www.youtube.com/watch?v=BaW_jenozKcj']
 [debug] Encodings: locale cp1251, fs mbcs, out cp866, pref cp1251
 [debug] youtube-dl version 2021.12.17
 [debug] Python version 2.7.11 - Windows-2003Server-5.2.3790-SP2
 [debug] exe versions: ffmpeg N-75573-g1d0487f, ffprobe N-75573-g1d0487f, rtmpdump 2.4
 [debug] Proxy map: {}
 <more lines>
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<details><summary>log</summary>

```
[debug] System config: ['--prefer-free-formats']
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://www.cda.pl/video/391634853']
[debug] Encodings: locale UTF-8, fs utf-8, out utf-8, pref UTF-8
[debug] youtube-dl version 2021.12.17
[debug] Python version 3.10.4 (CPython) - Linux-5.16.20-200.fc35.x86_64-x86_64-with-glibc2.34
[debug] exe versions: ffmpeg 4.4.1, ffprobe 4.4.1
[debug] Proxy map: {}
[CDA] 391634853: Downloading webpage
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on 'https://.mp4'
Traceback (most recent call last):
  File "/usr/lib64/python3.10/encodings/idna.py", line 165, in encode
    raise UnicodeError("label empty or too long")
UnicodeError: label empty or too long

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/bin/youtube-dl", line 33, in <module>
    sys.exit(load_entry_point('youtube-dl==2021.12.17', 'console_scripts', 'youtube-dl')())
  File "/usr/lib/python3.10/site-packages/youtube_dl/__init__.py", line 474, in main
    _real_main(argv)
  File "/usr/lib/python3.10/site-packages/youtube_dl/__init__.py", line 464, in _real_main
    retcode = ydl.download(all_urls)
  File "/usr/lib/python3.10/site-packages/youtube_dl/YoutubeDL.py", line 2067, in download
    res = self.extract_info(
  File "/usr/lib/python3.10/site-packages/youtube_dl/YoutubeDL.py", line 807, in extract_info
    return self.__extract_info(url, ie, download, extra_info, process)
  File "/usr/lib/python3.10/site-packages/youtube_dl/YoutubeDL.py", line 814, in wrapper
    return func(self, *args, **kwargs)
  File "/usr/lib/python3.10/site-packages/youtube_dl/YoutubeDL.py", line 846, in __extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "/usr/lib/python3.10/site-packages/youtube_dl/YoutubeDL.py", line 880, in process_ie_result
    return self.process_video_result(ie_result, download=download)
  File "/usr/lib/python3.10/site-packages/youtube_dl/YoutubeDL.py", line 1691, in process_video_result
    self.process_info(new_info)
  File "/usr/lib/python3.10/site-packages/youtube_dl/YoutubeDL.py", line 1975, in process_info
    success = dl(filename, info_dict)
  File "/usr/lib/python3.10/site-packages/youtube_dl/YoutubeDL.py", line 1914, in dl
    return fd.download(name, info)
  File "/usr/lib/python3.10/site-packages/youtube_dl/downloader/common.py", line 366, in download
    return self.real_download(filename, info_dict)
  File "/usr/lib/python3.10/site-packages/youtube_dl/downloader/http.py", line 351, in real_download
    establish_connection()
  File "/usr/lib/python3.10/site-packages/youtube_dl/downloader/http.py", line 110, in establish_connection
    ctx.data = self.ydl.urlopen(request)
  File "/usr/lib/python3.10/site-packages/youtube_dl/YoutubeDL.py", line 2287, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/lib64/python3.10/urllib/request.py", line 516, in open
    req = meth(req)
  File "/usr/lib/python3.10/site-packages/youtube_dl/utils.py", line 2599, in http_request
    url_escaped = escape_url(url)
  File "/usr/lib/python3.10/site-packages/youtube_dl/utils.py", line 3921, in escape_url
    netloc=url_parsed.netloc.encode('idna').decode('ascii'),
UnicodeError: encoding with 'idna' codec failed (UnicodeError: label empty or too long)
```
</details>

## Description

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ytdl with CDA url crashes because of "encoding error"... I don't know anything else :D