| 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 |
| |
| # 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'/' |
| |
| 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>' |
| 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): |
| return '%s%s' % (self.path, self._req.args and ('?' + 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 'content-type' in self._req.headers_in and self._req.headers_in['content-type'].startswith('multipart'): |
| self._raw_post_data = '' |
| self._post, self._files = self.parse_file_upload(self.META, self._req) |
| 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) |
