etwist/http.py
author Julien Cristau <julien.cristau@logilab.fr>
Thu, 10 Oct 2013 10:02:29 +0200
branchstable
changeset 9306 8ab0e601d418
parent 8930 6a02be304486
permissions -rw-r--r--
[web] don't rename resources in gen-static-datadir We should use the result from WebConfiguration.locate_resource to know which file to copy, not what name to copy it to. The destination file should be the name of the resource, as the client will request it. This matters in the case of cubicweb.css which locate_resource might rewrite to cubicweb.old.css. Closes #3206129

"""twisted server for CubicWeb web instances

:organization: Logilab
:copyright: 2001-2011 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
"""

__docformat__ = "restructuredtext en"

class HTTPResponse(object):
    """An object representing an HTTP Response to be sent to the client.
    """
    def __init__(self, twisted_request, code=None, headers=None, stream=None):
        self._headers_out = headers
        self._twreq = twisted_request
        self._stream = stream
        self._code = code

        self._init_headers()
        self._finalize()

    def _init_headers(self):
        if self._headers_out is None:
            return
        # initialize headers
        for k, values in self._headers_out.getAllRawHeaders():
            self._twreq.responseHeaders.setRawHeaders(k, values)
        # add content-length if not present
        if (self._headers_out.getHeader('content-length') is None
            and self._stream is not None):
           self._twreq.setHeader('content-length', len(self._stream))

    def _finalize(self):
        # we must set code before writing anything, else it's too late
        if self._code is not None:
            self._twreq.setResponseCode(self._code)
        if self._stream is not None:
            self._twreq.write(str(self._stream))
        self._twreq.finish()

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