1 """twisted server for CubicWeb web instances

     2 

     3 :organization: Logilab

     4 :copyright: 2001-2011 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.

     5 :contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr

     6 :license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses

     7 """

     8 

     9 __docformat__ = "restructuredtext en"

    10 

    11 class HTTPResponse(object):

    12     """An object representing an HTTP Response to be sent to the client.

    13     """

    14     def __init__(self, twisted_request, code=None, headers=None, stream=None):

    15         self._headers_out = headers

    16         self._twreq = twisted_request

    17         self._stream = stream

    18         self._code = code

    19 

    20         self._init_headers()

    21         self._finalize()

    22 

    23     def _init_headers(self):

    24         if self._headers_out is None:

    25             return

    26         # initialize headers

    27         for k, values in self._headers_out.getAllRawHeaders():

    28             self._twreq.responseHeaders.setRawHeaders(k, values)

    29         # add content-length if not present

    30         if (self._headers_out.getHeader('content-length') is None

    31             and self._stream is not None):

    32            self._twreq.setHeader('content-length', len(self._stream))

    33 

    34     def _finalize(self):

    35         # we must set code before writing anything, else it's too late

    36         if self._code is not None:

    37             self._twreq.setResponseCode(self._code)

    38         if self._stream is not None:

    39             self._twreq.write(str(self._stream))

    40         self._twreq.finish()

    41 

    42     def __repr__(self):

    43         return "<%s.%s code=%d>" % (self.__module__, self.__class__.__name__, self._code)