wsgi/handler.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Fri, 19 Apr 2013 16:25:45 +0200
branchstable
changeset 8914 e80dfffc2c2a
parent 8695 358d8bed9626
child 9030 c1d5e8ca15ea
child 9287 e70c8c70e344
permissions -rw-r--r--
[facet js] fix reordering of facet check boxes. Closes #2732947 Before this patch, when one select an element, it's moved to the top of the select content. Fine. But when it's later deselected, it stays there instead of moving back to its original location. This patch fixes that by introducing a facetCheckBoxReorder function which properly reorder the whole facet, instead of buggy attempt to locally reorder.

# copyright 2003-2012 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
"""WSGI request handler for cubicweb"""



__docformat__ = "restructuredtext en"

from itertools import chain, repeat, izip

from cubicweb import AuthenticationError
from cubicweb.web import DirectResponse
from cubicweb.web.application import CubicWebPublisher
from cubicweb.wsgi.request import CubicWebWsgiRequest

# See http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
STATUS_CODE_TEXT = {
    100: 'CONTINUE',
    101: 'SWITCHING PROTOCOLS',
    200: 'OK',
    201: 'CREATED',
    202: 'ACCEPTED',
    203: 'NON-AUTHORITATIVE INFORMATION',
    204: 'NO CONTENT',
    205: 'RESET CONTENT',
    206: 'PARTIAL CONTENT',
    300: 'MULTIPLE CHOICES',
    301: 'MOVED PERMANENTLY',
    302: 'FOUND',
    303: 'SEE OTHER',
    304: 'NOT MODIFIED',
    305: 'USE PROXY',
    306: 'RESERVED',
    307: 'TEMPORARY REDIRECT',
    400: 'BAD REQUEST',
    401: 'UNAUTHORIZED',
    402: 'PAYMENT REQUIRED',
    403: 'FORBIDDEN',
    404: 'NOT FOUND',
    405: 'METHOD NOT ALLOWED',
    406: 'NOT ACCEPTABLE',
    407: 'PROXY AUTHENTICATION REQUIRED',
    408: 'REQUEST TIMEOUT',
    409: 'CONFLICT',
    410: 'GONE',
    411: 'LENGTH REQUIRED',
    412: 'PRECONDITION FAILED',
    413: 'REQUEST ENTITY TOO LARGE',
    414: 'REQUEST-URI TOO LONG',
    415: 'UNSUPPORTED MEDIA TYPE',
    416: 'REQUESTED RANGE NOT SATISFIABLE',
    417: 'EXPECTATION FAILED',
    500: 'INTERNAL SERVER ERROR',
    501: 'NOT IMPLEMENTED',
    502: 'BAD GATEWAY',
    503: 'SERVICE UNAVAILABLE',
    504: 'GATEWAY TIMEOUT',
    505: 'HTTP VERSION NOT SUPPORTED',
}

class WSGIResponse(object):
    """encapsulates the wsgi response parameters
    (code, headers and body if there is one)
    """
    def __init__(self, code, req, body=None):
        text = STATUS_CODE_TEXT.get(code, 'UNKNOWN STATUS CODE')
        self.status =  '%s %s' % (code, text)
        self.headers = list(chain(*[izip(repeat(k), v)
                                    for k, v in req.headers_out.getAllRawHeaders()]))
        self.headers = [(str(k), str(v)) for k, v in self.headers]
        if body:
            self.body = [body]
        else:
            self.body = []

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



class CubicWebWSGIApplication(object):
    """This is the wsgi application which will be called by the
    wsgi server with the WSGI ``environ`` and ``start_response``
    parameters.

    XXX: missing looping tasks and proper repository shutdown when
    the application is stopped.
    NOTE: no pyro
    """

    def __init__(self, config, vreg=None):
        self.appli = CubicWebPublisher(config, vreg=vreg)
        self.config = config
        self.base_url = self.config['base-url']
        self.https_url = self.config['https-url']
        self.url_rewriter = self.appli.vreg['components'].select_or_none('urlrewriter')

    def _render(self, req):
        """this function performs the actual rendering
        """
        if self.base_url is None:
            self.base_url = self.config._base_url = req.base_url()
        try:
            path = req.path
            result = self.appli.handle_request(req, path)
        except DirectResponse as ex:
            return ex.response
        return WSGIResponse(req.status_out, req, result)


    def __call__(self, environ, start_response):
        """WSGI protocol entry point"""
        req = CubicWebWsgiRequest(environ, self.appli.vreg)
        response = self._render(req)
        start_response(response.status, response.headers)
        return response.body



    # these are overridden by set_log_methods below
    # only defining here to prevent pylint from complaining
    info = warning = error = critical = exception = debug = lambda msg,*a,**kw: None


from logging import getLogger
from cubicweb import set_log_methods
set_log_methods(CubicWebWSGIApplication, getLogger('cubicweb.wsgi'))