+class YoutubeDLCookieJar(compat_cookiejar.MozillaCookieJar):
+ """
+ See [1] for cookie file format.
+
+ 1. https://curl.haxx.se/docs/http-cookies.html
+ """
+ _HTTPONLY_PREFIX = '#HttpOnly_'
+
+ def save(self, filename=None, ignore_discard=False, ignore_expires=False):
+ # Store session cookies with `expires` set to 0 instead of an empty
+ # string
+ for cookie in self:
+ if cookie.expires is None:
+ cookie.expires = 0
+ compat_cookiejar.MozillaCookieJar.save(self, filename, ignore_discard, ignore_expires)
+
+ def load(self, filename=None, ignore_discard=False, ignore_expires=False):
+ """Load cookies from a file."""
+ if filename is None:
+ if self.filename is not None:
+ filename = self.filename
+ else:
+ raise ValueError(compat_cookiejar.MISSING_FILENAME_TEXT)
+
+ cf = io.StringIO()
+ with open(filename) as f:
+ for line in f:
+ if line.startswith(self._HTTPONLY_PREFIX):
+ line = line[len(self._HTTPONLY_PREFIX):]
+ cf.write(compat_str(line))
+ cf.seek(0)
+ self._really_load(cf, filename, ignore_discard, ignore_expires)
+ # Session cookies are denoted by either `expires` field set to
+ # an empty string or 0. MozillaCookieJar only recognizes the former
+ # (see [1]). So we need force the latter to be recognized as session
+ # cookies on our own.
+ # Session cookies may be important for cookies-based authentication,
+ # e.g. usually, when user does not check 'Remember me' check box while
+ # logging in on a site, some important cookies are stored as session
+ # cookies so that not recognizing them will result in failed login.
+ # 1. https://bugs.python.org/issue17164
+ for cookie in self:
+ # Treat `expires=0` cookies as session cookies
+ if cookie.expires == 0:
+ cookie.expires = None
+ cookie.discard = True
+
+