author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Wed, 05 May 2010 18:54:04 +0200 | |
branch | oldstable |
changeset 5484 | 95f2384b4495 |
parent 5424 | 8ecbcbff9777 |
child 5426 | 0d4853a6e5ee |
permissions | -rw-r--r-- |
5421
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
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1 |
# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved. |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
2 |
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
3 |
# |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
4 |
# This file is part of CubicWeb. |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
5 |
# |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
6 |
# CubicWeb is free software: you can redistribute it and/or modify it under the |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
7 |
# terms of the GNU Lesser General Public License as published by the Free |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
8 |
# Software Foundation, either version 2.1 of the License, or (at your option) |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
9 |
# any later version. |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
10 |
# |
5424
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replace logilab-common by CubicWeb in disclaimer
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5421
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changeset
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT |
5421
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
12 |
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
13 |
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
14 |
# details. |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
15 |
# |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
16 |
# You should have received a copy of the GNU Lesser General Public License along |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4425
diff
changeset
|
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# with CubicWeb. If not, see <http://www.gnu.org/licenses/>. |
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"""Twisted request handler for CubicWeb |
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""" |
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__docformat__ = "restructuredtext en" |
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from datetime import datetime |
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from twisted.web2 import http, http_headers |
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from cubicweb.web import DirectResponse |
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from cubicweb.web.request import CubicWebRequestBase |
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from cubicweb.web.httpcache import GMTOFFSET |
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def cleanup_files(dct, encoding): |
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d = {} |
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for k, infos in dct.items(): |
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for (filename, mt, stream) in infos: |
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if filename: |
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# XXX: suppose that no file submitted <-> no filename |
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filename = unicode(filename, encoding) |
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mt = u'%s/%s' % (mt.mediaType, mt.mediaSubtype) |
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d[k] = (filename, mt, stream) |
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return d |
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class CubicWebTwistedRequestAdapter(CubicWebRequestBase): |
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def __init__(self, req, vreg, https, base_url): |
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self._twreq = req |
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self._base_url = base_url |
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super(CubicWebTwistedRequestAdapter, self).__init__(vreg, https, req.args) |
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self.form.update(cleanup_files(req.files, self.encoding)) |
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# prepare output headers |
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self.headers_out = http_headers.Headers() |
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self._headers = req.headers |
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def base_url(self): |
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"""return the root url of the instance""" |
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return self._base_url |
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def http_method(self): |
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"""returns 'POST', 'GET', 'HEAD', etc.""" |
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return self._twreq.method |
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
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def relative_path(self, includeparams=True): |
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"""return the normalized path of the request (ie at least relative |
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application -> instance where it makes sense
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
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to the instance's root, but some other normalization may be needed |
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so that the returned path may be used to compare to generated urls |
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:param includeparams: |
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boolean indicating if GET form parameters should be kept in the path |
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""" |
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path = self._twreq.uri[1:] # remove the root '/' |
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if not includeparams: |
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path = path.split('?', 1)[0] |
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return path |
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def get_header(self, header, default=None, raw=True): |
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"""return the value associated with the given input header, |
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raise KeyError if the header is not set |
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""" |
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if raw: |
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return self._twreq.headers.getRawHeaders(header, [default])[0] |
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return self._twreq.headers.getHeader(header, default) |
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def set_header(self, header, value, raw=True): |
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"""set an output HTTP header""" |
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if raw: |
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# adding encoded header is important, else page content |
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# will be reconverted back to unicode and apart unefficiency, this |
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# may cause decoding problem (e.g. when downloading a file) |
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self.headers_out.setRawHeaders(header, [str(value)]) |
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else: |
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self.headers_out.setHeader(header, value) |
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def add_header(self, header, value): |
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"""add an output HTTP header""" |
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# adding encoded header is important, else page content |
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# will be reconverted back to unicode and apart unefficiency, this |
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# may cause decoding problem (e.g. when downloading a file) |
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self.headers_out.addRawHeader(header, str(value)) |
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def remove_header(self, header): |
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"""remove an output HTTP header""" |
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self.headers_out.removeHeader(header) |
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def _validate_cache(self): |
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"""raise a `DirectResponse` exception if a cached page along the way |
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exists and is still usable |
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""" |
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if self.get_header('Cache-Control') in ('max-age=0', 'no-cache'): |
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# Expires header seems to be required by IE7 |
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self.add_header('Expires', 'Sat, 01 Jan 2000 00:00:00 GMT') |
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return |
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try: |
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http.checkPreconditions(self._twreq, _PreResponse(self)) |
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except http.HTTPError, ex: |
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self.info('valid http cache, no actual rendering') |
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raise DirectResponse(ex.response) |
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# Expires header seems to be required by IE7 |
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self.add_header('Expires', 'Sat, 01 Jan 2000 00:00:00 GMT') |
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def header_accept_language(self): |
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"""returns an ordered list of preferred languages""" |
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acceptedlangs = self.get_header('Accept-Language', raw=False) or {} |
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for lang, _ in sorted(acceptedlangs.iteritems(), key=lambda x: x[1], |
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reverse=True): |
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lang = lang.split('-')[0] |
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yield lang |
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def header_if_modified_since(self): |
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"""If the HTTP header If-modified-since is set, return the equivalent |
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date time value (GMT), else return None |
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""" |
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mtime = self.get_header('If-modified-since', raw=False) |
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if mtime: |
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# :/ twisted is returned a localized time stamp |
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return datetime.fromtimestamp(mtime) + GMTOFFSET |
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return None |
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class _PreResponse(object): |
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def __init__(self, request): |
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self.headers = request.headers_out |
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self.code = 200 |