author | Julien Cristau <julien.cristau@logilab.fr> |
Thu, 12 Feb 2015 13:52:58 +0100 | |
changeset 10231 | fdcc500002ef |
parent 10080 | bc7c3b0f439b |
child 10594 | 6a55853f14c9 |
permissions | -rw-r--r-- |
# copyright 2003-2011 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 adapter for cubicweb NOTE: each docstring tagged with ``COME FROM DJANGO`` means that the code has been taken (or adapted) from Djanco source code : http://www.djangoproject.com/ """ __docformat__ = "restructuredtext en" import tempfile from StringIO import StringIO from urllib import quote from urlparse import parse_qs from warnings import warn from cubicweb.multipart import ( copy_file, parse_form_data, MultipartError, parse_options_header) from cubicweb.web import RequestError from cubicweb.web.request import CubicWebRequestBase from cubicweb.wsgi import pformat, normalize_header class CubicWebWsgiRequest(CubicWebRequestBase): """most of this code COMES FROM DJANGO """ def __init__(self, environ, vreg): # self.vreg is used in get_posted_data, which is called before the # parent constructor. self.vreg = vreg self.environ = environ self.path = environ['PATH_INFO'] self.method = environ['REQUEST_METHOD'].upper() # content_length "may be empty or absent" try: length = int(environ['CONTENT_LENGTH']) except (KeyError, ValueError): length = 0 # wsgi.input is not seekable, so copy the request contents to a temporary file if length < 100000: self.content = StringIO() else: self.content = tempfile.TemporaryFile() copy_file(environ['wsgi.input'], self.content, maxread=length) self.content.seek(0, 0) environ['wsgi.input'] = self.content headers_in = dict((normalize_header(k[5:]), v) for k, v in self.environ.items() if k.startswith('HTTP_')) if 'CONTENT_TYPE' in environ: headers_in['Content-Type'] = environ['CONTENT_TYPE'] https = self.is_secure() if self.path.startswith('/https/'): self.path = self.path[6:] self.environ['PATH_INFO'] = self.path https = True post, files = self.get_posted_data() super(CubicWebWsgiRequest, self).__init__(vreg, https, post, headers= headers_in) self.content = environ['wsgi.input'] if files is not None: for key, part in files.iteritems(): self.form[key] = (part.filename, part.file) def __repr__(self): # Since this is called as part of error handling, we need to be very # robust against potentially malformed input. form = pformat(self.form) meta = pformat(self.environ) return '<CubicWebWsgiRequest\FORM:%s,\nMETA:%s>' % \ (form, meta) ## cubicweb request interface ################################################ def http_method(self): """returns 'POST', 'GET', 'HEAD', etc.""" return self.method def relative_path(self, includeparams=True): """return the normalized path of the request (ie at least relative to the instance's root, but some other normalization may be needed so that the returned path may be used to compare to generated urls :param includeparams: boolean indicating if GET form parameters should be kept in the path """ path = self.environ['PATH_INFO'] path = path[1:] # remove leading '/' if includeparams: qs = self.environ.get('QUERY_STRING') if qs: return '%s?%s' % (path, qs) return path ## wsgi request helpers ################################################### def is_secure(self): return self.environ['wsgi.url_scheme'] == 'https' def get_posted_data(self): # The WSGI spec says 'QUERY_STRING' may be absent. post = parse_qs(self.environ.get('QUERY_STRING', '')) files = None if self.method == 'POST': content_type = self.environ.get('CONTENT_TYPE') if not content_type: raise RequestError("Missing Content-Type") content_type, options = parse_options_header(content_type) if content_type in ( 'multipart/form-data', 'application/x-www-form-urlencoded', 'application/x-url-encoded'): forms, files = parse_form_data( self.environ, strict=True, mem_limit=self.vreg.config['max-post-length']) post.update(forms.dict) self.content.seek(0, 0) return post, files def setup_params(self, params): # This is a copy of CubicWebRequestBase.setup_params, but without # converting unicode strings because it is partially done by # get_posted_data self.form = {} if params is None: return encoding = self.encoding for param, val in params.iteritems(): if isinstance(val, (tuple, list)): val = [ unicode(x, encoding) if isinstance(x, str) else x for x in val] if len(val) == 1: val = val[0] elif isinstance(val, str): val = unicode(val, encoding) if param in self.no_script_form_params and val: val = self.no_script_form_param(param, val) if param == '_cwmsgid': self.set_message_id(val) else: self.form[param] = val