Class BaseResponse

thirdparty/bottle/bottle.py:2021–2290

Storage class for a response body as well as headers and cookies. This class does support dict-like case-insensitive item-access to headers, but is NOT a dict. Most notably, iterating over a response yields parts of the body and not the headers. :param body: The re

class BaseResponse(object):
    """ Storage class for a response body as well as headers and cookies.

        This class does support dict-like case-insensitive item-access to
        headers, but is NOT a dict. Most notably, iterating over a response
        yields parts of the body and not the headers.

        :param body: The response body as one of the supported types.
        :param status: Either an HTTP status code (e.g. 200) or a status line
                       including the reason phrase (e.g. '200 OK').
        :param headers: A dictionary or a list of name-value pairs.

        Additional keyword arguments are added to the list of headers.
        Underscores in the header name are replaced with dashes.
    """

    default_status = 200
    default_content_type = 'text/html; charset=UTF-8'

    # Header denylist for specific response codes
    # (rfc2616 section 10.2.3 and 10.3.5)
    bad_headers = {
        204: frozenset(('Content-Type', 'Content-Length')),
        304: frozenset(('Allow', 'Content-Encoding', 'Content-Language',
                  'Content-Length', 'Content-Range', 'Content-Type',
                  'Content-Md5', 'Last-Modified'))
    }

    def __init__(self, body='', status=None, headers=None, **more_headers):
        self._cookies = None
        self._headers = {}
        self.body = body
        self.status = status or self.default_status
        if headers:
            if isinstance(headers, dict):
                headers = headers.items()
            for name, value in headers:
                self.add_header(name, value)
        if more_headers:
            for name, value in more_headers.items():
                self.add_header(name, value)

    def copy(self, cls=None):
        """ Returns a copy of self. """
        cls = cls or BaseResponse
        assert issubclass(cls, BaseResponse)
        copy = cls()
        copy.status = self.status
        copy._headers = dict((k, v[:]) for (k, v) in self._headers.items())
        if self._cookies:
            cookies = copy._cookies = SimpleCookie()
            for k,v in self._cookies.items():
                cookies[k] = v.value
                cookies[k].update(v) # also copy cookie attributes
        return copy

    def __iter__(self):
        return iter(self.body)