48 lines
1.4 KiB
Python
48 lines
1.4 KiB
Python
|
import typing as t
|
||
|
|
|
||
|
|
|
||
|
|
class UserAgent:
|
||
|
|
"""Represents a parsed user agent header value.
|
||
|
|
|
||
|
|
The default implementation does no parsing, only the :attr:`string`
|
||
|
|
attribute is set. A subclass may parse the string to set the
|
||
|
|
common attributes or expose other information. Set
|
||
|
|
:attr:`werkzeug.wrappers.Request.user_agent_class` to use a
|
||
|
|
subclass.
|
||
|
|
|
||
|
|
:param string: The header value to parse.
|
||
|
|
|
||
|
|
.. versionadded:: 2.0
|
||
|
|
This replaces the previous ``useragents`` module, but does not
|
||
|
|
provide a built-in parser.
|
||
|
|
"""
|
||
|
|
|
||
|
|
platform: t.Optional[str] = None
|
||
|
|
"""The OS name, if it could be parsed from the string."""
|
||
|
|
|
||
|
|
browser: t.Optional[str] = None
|
||
|
|
"""The browser name, if it could be parsed from the string."""
|
||
|
|
|
||
|
|
version: t.Optional[str] = None
|
||
|
|
"""The browser version, if it could be parsed from the string."""
|
||
|
|
|
||
|
|
language: t.Optional[str] = None
|
||
|
|
"""The browser language, if it could be parsed from the string."""
|
||
|
|
|
||
|
|
def __init__(self, string: str) -> None:
|
||
|
|
self.string: str = string
|
||
|
|
"""The original header value."""
|
||
|
|
|
||
|
|
def __repr__(self) -> str:
|
||
|
|
return f"<{type(self).__name__} {self.browser}/{self.version}>"
|
||
|
|
|
||
|
|
def __str__(self) -> str:
|
||
|
|
return self.string
|
||
|
|
|
||
|
|
def __bool__(self) -> bool:
|
||
|
|
return bool(self.browser)
|
||
|
|
|
||
|
|
def to_header(self) -> str:
|
||
|
|
"""Convert to a header value."""
|
||
|
|
return self.string
|