author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Thu, 29 Sep 2011 13:53:34 +0200 | |
branch | stable |
changeset 7886 | b1c913a6d9f0 |
parent 7855 | 54283a5b7afc |
child 8316 | d5b1b75805dd |
permissions | -rw-r--r-- |
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"""twisted server for CubicWeb web instances |
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:organization: Logilab |
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:copyright: 2001-2011 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2. |
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses |
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""" |
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__docformat__ = "restructuredtext en" |
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from cubicweb.web.http_headers import Headers |
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class HTTPResponse(object): |
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"""An object representing an HTTP Response to be sent to the client. |
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""" |
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def __init__(self, twisted_request, code=None, headers=None, stream=None): |
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self._headers_out = headers |
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self._twreq = twisted_request |
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self._stream = stream |
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self._code = code |
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self._init_headers() |
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self._finalize() |
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def _init_headers(self): |
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if self._headers_out is None: |
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return |
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# initialize headers |
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for k, values in self._headers_out.getAllRawHeaders(): |
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self._twreq.responseHeaders.setRawHeaders(k, values) |
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# add content-length if not present |
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if (self._headers_out.getHeader('content-length') is None |
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and self._stream is not None): |
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self._twreq.setHeader('content-length', len(self._stream)) |
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def _finalize(self): |
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# we must set code before writing anything, else it's too late |
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if self._code is not None: |
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self._twreq.setResponseCode(self._code) |
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if self._stream is not None: |
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self._twreq.write(str(self._stream)) |
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self._twreq.finish() |
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def __repr__(self): |
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return "<%s.%s code=%d>" % (self.__module__, self.__class__.__name__, self._code) |
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def not_modified_response(twisted_request, headers_in): |
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headers_out = Headers() |
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for header in ( |
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# Required from sec 10.3.5: |
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'date', 'etag', 'content-location', 'expires', |
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'cache-control', 'vary', |
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# Others: |
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'server', 'proxy-authenticate', 'www-authenticate', 'warning'): |
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value = headers_in.getRawHeaders(header) |
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if value is not None: |
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headers_out.setRawHeaders(header, value) |
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return HTTPResponse(twisted_request=twisted_request, |
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headers=headers_out) |