Repository: yt-dlp/yt-dlp
File: yt_dlp/extractor/brilliantpala.py (Python)

Code before:
import hashlib

from .common import InfoExtractor
from ..utils import (
    ExtractorError,
    dict_get,
    traverse_obj,
    urlencode_postdata,
)


class BrilliantpalaIE(InfoExtractor):
    _NETRC_MACHINE = 'brilliantpala'
    _DOMAIN = '{subdomain}.brilliantpala.org'

    def _initialize_pre_login(self):
        self._HOMEPAGE = f'https://{self._DOMAIN}'
        self._LOGIN_API = f'{self._HOMEPAGE}/login/'
        self._LOGOUT_DEVICES_API = f'{self._HOMEPAGE}/logout_devices/?next=/'
        self._CONTENT_API = f'{self._HOMEPAGE}/api/v2.4/contents/{{content_id}}/'
        self._HLS_AES_URI = f'{self._HOMEPAGE}/api/v2.5/video_contents/{{content_id}}/key/'

    def _get_logged_in_username(self, webpage):
        if self._LOGIN_API == self._og_search_property('url', webpage):
            self.raise_login_required()
        return self._html_search_regex(
            r'"username":\s*"(?P<username>[^"]+)"', webpage, 'stream page info', 'username')

    def _perform_login(self, username, password):
        login_form = self._hidden_inputs(self._download_webpage(
            self._LOGIN_API, None, 'Downloading login page'))
        login_form.update({
            'username': username,
            'password': password,
        })
        self._set_cookie(self._DOMAIN, 'csrftoken', login_form['csrfmiddlewaretoken'])

        logged_page = self._download_webpage(
            self._LOGIN_API, None, note='Logging in', headers={'Referer': self._LOGIN_API},
            data=urlencode_postdata(login_form))

        if self._html_search_regex(
            r'(?P<warning>Your username / email and password)', logged_page,
                'authentication failure warning', group='warning', fatal=False, default=''):
            raise ExtractorError('wrong username or password', expected=True)

Review comment (suggestion):
~~simpler as class vars~~
```suggestion
    _HOMEPAGE = f'https://{_DOMAIN}'
    _LOGIN_API = f'{_HOMEPAGE}/login/'
    _LOGOUT_DEVICES_API = f'{_HOMEPAGE}/logout_devices/?next=/'
    _CONTENT_API = f'{_HOMEPAGE}/api/v2.4/contents/{{content_id}}/'
    _HLS_AES_URI = f'{_HOMEPAGE}/api/v2.5/video_contents/{{content_id}}/key/'
```

Code after:
import hashlib

from .common import InfoExtractor
from ..utils import (
    ExtractorError,
    traverse_obj,
    urlencode_postdata,
)


class BrilliantpalaBaseIE(InfoExtractor):
    _NETRC_MACHINE = 'brilliantpala'
    _DOMAIN = '{subdomain}.brilliantpala.org'

    def _initialize_pre_login(self):
        self._HOMEPAGE = f'https://{self._DOMAIN}'
        self._LOGIN_API = f'{self._HOMEPAGE}/login/'
        self._LOGOUT_DEVICES_API = f'{self._HOMEPAGE}/logout_devices/?next=/'
        self._CONTENT_API = f'{self._HOMEPAGE}/api/v2.4/contents/{{content_id}}/'
        self._HLS_AES_URI = f'{self._HOMEPAGE}/api/v2.5/video_contents/{{content_id}}/key/'

    def _get_logged_in_username(self, url, video_id):
        webpage, urlh = self._download_webpage_handle(url, video_id)
        if self._LOGIN_API == urlh.url:
            self.raise_login_required()
        return self._html_search_regex(
            r'"username"\s*:\s*"(?P<username>[^"]+)"', webpage, 'stream page info', 'username')

    def _perform_login(self, username, password):
        login_form = self._hidden_inputs(self._download_webpage(
            self._LOGIN_API, None, 'Downloading login page'))
        login_form.update({
            'username': username,
            'password': password,
        })
        self._set_cookie(self._DOMAIN, 'csrftoken', login_form['csrfmiddlewaretoken'])

        logged_page = self._download_webpage(
            self._LOGIN_API, None, note='Logging in', headers={'Referer': self._LOGIN_API},
            data=urlencode_postdata(login_form))

        if self._html_search_regex(
                r'(Your username / email and password)', logged_page, 'auth fail', default=None):
            raise ExtractorError('wrong username or password', expected=True)