+
−import os
+
−from pprint import pformat
+
−
+
−from django import http
+
−from django.core import signals
+
−from django.core.handlers.base import BaseHandler
+
−from django.core.urlresolvers import set_script_prefix
+
−from django.utils import datastructures
+
−from django.utils.encoding import force_unicode, smart_str, iri_to_uri
+
−
+
−# NOTE: do *not* import settings (or any module which eventually imports
+
−# settings) until after ModPythonHandler has been called; otherwise os.environ
+
−# won't be set up correctly (with respect to settings).
+
−
+
−class ModPythonRequest(http.HttpRequest):
+
−    def __init__(self, req):
+
−        self._req = req
+
−        # FIXME: This isn't ideal. The request URI may be encoded (it's
+
−        # non-normalized) slightly differently to the "real" SCRIPT_NAME
+
−        # and PATH_INFO values. This causes problems when we compute path_info,
+
−        # below. For now, don't use script names that will be subject to
+
−        # encoding/decoding.
+
−        self.path = force_unicode(req.uri)
+
−        root = req.get_options().get('django.root', '')
+
−        self.django_root = root
+
−        # req.path_info isn't necessarily computed correctly in all
+
−        # circumstances (it's out of mod_python's control a bit), so we use
+
−        # req.uri and some string manipulations to get the right value.
+
−        if root and req.uri.startswith(root):
+
−            self.path_info = force_unicode(req.uri[len(root):])
+
−        else:
+
−            self.path_info = self.path
+
−        if not self.path_info:
+
−            # Django prefers empty paths to be '/', rather than '', to give us
+
−            # a common start character for URL patterns. So this is a little
+
−            # naughty, but also pretty harmless.
+
−            self.path_info = u'/'
+
−        self._post_parse_error = False
+
−
+
−    def __repr__(self):
+
−        # Since this is called as part of error handling, we need to be very
+
−        # robust against potentially malformed input.
+
−        try:
+
−            get = pformat(self.GET)
+
−        except:
+
−            get = '<could not parse>'
+
−        if self._post_parse_error:
+
−            post = '<could not parse>'
+
−        else:
+
−            try:
+
−                post = pformat(self.POST)
+
−            except:
+
−                post = '<could not parse>'
+
−        try:
+
−            cookies = pformat(self.COOKIES)
+
−        except:
+
−            cookies = '<could not parse>'
+
−        try:
+
−            meta = pformat(self.META)
+
−        except:
+
−            meta = '<could not parse>'
+
−        return smart_str(u'<ModPythonRequest\npath:%s,\nGET:%s,\nPOST:%s,\nCOOKIES:%s,\nMETA:%s>' %
+
−                         (self.path, unicode(get), unicode(post),
+
−                          unicode(cookies), unicode(meta)))
+
−
+
−    def get_full_path(self):
+
−        # RFC 3986 requires self._req.args to be in the ASCII range, but this
+
−        # doesn't always happen, so rather than crash, we defensively encode it.
+
−        return '%s%s' % (self.path, self._req.args and ('?' + iri_to_uri(self._req.args)) or '')
+
−
+
−    def is_secure(self):
+
−        try:
+
−            return self._req.is_https()
+
−        except AttributeError:
+
−            # mod_python < 3.2.10 doesn't have req.is_https().
+
−            return self._req.subprocess_env.get('HTTPS', '').lower() in ('on', '1')
+
−
+
−    def _load_post_and_files(self):
+
−        "Populates self._post and self._files"
+
−        if self.method != 'POST':
+
−            self._post, self._files = http.QueryDict('', encoding=self._encoding), datastructures.MultiValueDict()
+
−            return
+
−
+
−        if 'content-type' in self._req.headers_in and self._req.headers_in['content-type'].startswith('multipart'):
+
−            self._raw_post_data = ''
+
−            try:
+
−                self._post, self._files = self.parse_file_upload(self.META, self._req)
+
−            except:
+
−                # See django.core.handlers.wsgi.WSGIHandler for an explanation
+
−                # of what's going on here.
+
−                self._post = http.QueryDict('')
+
−                self._files = datastructures.MultiValueDict()
+
−                self._post_parse_error = True
+
−                raise
+
−        else:
+
−            self._post, self._files = http.QueryDict(self.raw_post_data, encoding=self._encoding), datastructures.MultiValueDict()
+
−
+
−    def _get_request(self):
+
−        if not hasattr(self, '_request'):
+
−            self._request = datastructures.MergeDict(self.POST, self.GET)
+
−        return self._request
+
−
+
−    def _get_get(self):
+
−        if not hasattr(self, '_get'):
+
−            self._get = http.QueryDict(self._req.args, encoding=self._encoding)
+
−        return self._get
+
−
+
−    def _set_get(self, get):
+
−        self._get = get
+
−
+
−    def _get_post(self):
+
−        if not hasattr(self, '_post'):
+
−            self._load_post_and_files()
+
−        return self._post
+
−
+
−    def _set_post(self, post):
+
−        self._post = post
+
−
+
−    def _get_cookies(self):
+
−        if not hasattr(self, '_cookies'):
+
−            self._cookies = http.parse_cookie(self._req.headers_in.get('cookie', ''))
+
−        return self._cookies
+
−
+
−    def _set_cookies(self, cookies):
+
−        self._cookies = cookies
+
−
+
−    def _get_files(self):
+
−        if not hasattr(self, '_files'):
+
−            self._load_post_and_files()
+
−        return self._files
+
−
+
−    def _get_meta(self):
+
−        "Lazy loader that returns self.META dictionary"
+
−        if not hasattr(self, '_meta'):
+
−            self._meta = {
+
−                'AUTH_TYPE':         self._req.ap_auth_type,
+
−                'CONTENT_LENGTH':    self._req.clength, # This may be wrong
+
−                'CONTENT_TYPE':      self._req.content_type, # This may be wrong
+
−                'GATEWAY_INTERFACE': 'CGI/1.1',
+
−                'PATH_INFO':         self.path_info,
+
−                'PATH_TRANSLATED':   None, # Not supported
+
−                'QUERY_STRING':      self._req.args,
+
−                'REMOTE_ADDR':       self._req.connection.remote_ip,
+
−                'REMOTE_HOST':       None, # DNS lookups not supported
+
−                'REMOTE_IDENT':      self._req.connection.remote_logname,
+
−                'REMOTE_USER':       self._req.user,
+
−                'REQUEST_METHOD':    self._req.method,
+
−                'SCRIPT_NAME':       self.django_root,
+
−                'SERVER_NAME':       self._req.server.server_hostname,
+
−                'SERVER_PORT':       self._req.server.port,
+
−                'SERVER_PROTOCOL':   self._req.protocol,
+
−                'SERVER_SOFTWARE':   'mod_python'
+
−            }
+
−            for key, value in self._req.headers_in.items():
+
−                key = 'HTTP_' + key.upper().replace('-', '_')
+
−                self._meta[key] = value
+
−        return self._meta
+
−
+
−    def _get_raw_post_data(self):
+
−        try:
+
−            return self._raw_post_data
+
−        except AttributeError:
+
−            self._raw_post_data = self._req.read()
+
−            return self._raw_post_data
+
−
+
−    def _get_method(self):
+
−        return self.META['REQUEST_METHOD'].upper()
+
−
+
−    GET = property(_get_get, _set_get)
+
−    POST = property(_get_post, _set_post)
+
−    COOKIES = property(_get_cookies, _set_cookies)
+
−    FILES = property(_get_files)
+
−    META = property(_get_meta)
+
−    REQUEST = property(_get_request)
+
−    raw_post_data = property(_get_raw_post_data)
+
−    method = property(_get_method)
+
−
+
−class ModPythonHandler(BaseHandler):
+
−    request_class = ModPythonRequest
+
−
+
−    def __call__(self, req):
+
−        # mod_python fakes the environ, and thus doesn't process SetEnv.  This fixes that
+
−        os.environ.update(req.subprocess_env)
+
−
+
−        # now that the environ works we can see the correct settings, so imports
+
−        # that use settings now can work
+
−        from django.conf import settings
+
−
+
−        # if we need to set up middleware, now that settings works we can do it now.
+
−        if self._request_middleware is None:
+
−            self.load_middleware()
+
−
+
−        set_script_prefix(req.get_options().get('django.root', ''))
+
−        signals.request_started.send(sender=self.__class__)
+
−        try:
+
−            try:
+
−                request = self.request_class(req)
+
−            except UnicodeDecodeError:
+
−                response = http.HttpResponseBadRequest()
+
−            else:
+
−                response = self.get_response(request)
+
−
+
−                # Apply response middleware
+
−                for middleware_method in self._response_middleware:
+
−                    response = middleware_method(request, response)
+
−                response = self.apply_response_fixes(request, response)
+
−        finally:
+
−            signals.request_finished.send(sender=self.__class__)
+
−
+
−        # Convert our custom HttpResponse object back into the mod_python req.
+
−        req.content_type = response['Content-Type']
+
−        for key, value in response.items():
+
−            if key != 'content-type':
+
−                req.headers_out[str(key)] = str(value)
+
−        for c in response.cookies.values():
+
−            req.headers_out.add('Set-Cookie', c.output(header=''))
+
−        req.status = response.status_code
+
−        try:
+
−            for chunk in response:
+
−                req.write(chunk)
+
−        finally:
+
−            response.close()
+
−
+
−        return 0 # mod_python.apache.OK
+
−
+
−def handler(req):
+
−    # mod_python hooks into this function.
+
−    return ModPythonHandler()(req)