webapi.py 文件源码

def parse_cookies(http_cookie):
    r"""Parse a HTTP_COOKIE header and return dict of cookie names and decoded values.

    >>> sorted(parse_cookies('').items())
    []
    >>> sorted(parse_cookies('a=1').items())
    [('a', '1')]
    >>> sorted(parse_cookies('a=1%202').items())
    [('a', '1 2')]
    >>> sorted(parse_cookies('a=Z%C3%A9Z').items())
    [('a', 'Z\xc3\xa9Z')]
    >>> sorted(parse_cookies('a=1; b=2; c=3').items())
    [('a', '1'), ('b', '2'), ('c', '3')]
    >>> sorted(parse_cookies('a=1; b=w("x")|y=z; c=3').items())
    [('a', '1'), ('b', 'w('), ('c', '3')]
    >>> sorted(parse_cookies('a=1; b=w(%22x%22)|y=z; c=3').items())
    [('a', '1'), ('b', 'w("x")|y=z'), ('c', '3')]

    >>> sorted(parse_cookies('keebler=E=mc2').items())
    [('keebler', 'E=mc2')]
    >>> sorted(parse_cookies(r'keebler="E=mc2; L=\"Loves\"; fudge=\012;"').items())
    [('keebler', 'E=mc2; L="Loves"; fudge=\n;')]
    """
    #print "parse_cookies"
    if '"' in http_cookie:
        # HTTP_COOKIE has quotes in it, use slow but correct cookie parsing
        cookie = Cookie.SimpleCookie()
        try:
            cookie.load(http_cookie)
        except Cookie.CookieError:
            # If HTTP_COOKIE header is malformed, try at least to load the cookies we can by
            # first splitting on ';' and loading each attr=value pair separately
            cookie = Cookie.SimpleCookie()
            for attr_value in http_cookie.split(';'):
                try:
                    cookie.load(attr_value)
                except Cookie.CookieError:
                    pass
        cookies = dict((k, urllib.unquote(v.value)) for k, v in cookie.iteritems())
    else:
        # HTTP_COOKIE doesn't have quotes, use fast cookie parsing
        cookies = {}
        for key_value in http_cookie.split(';'):
            key_value = key_value.split('=', 1)
            if len(key_value) == 2:
                key, value = key_value
                cookies[key.strip()] = urllib.unquote(value.strip())
    return cookies