mirror of https://github.com/django/django.git
Added WSGI support. Created core.handlers package. Moved ALL mod_python-specific code to django.core.handlers.modpython. Note that django.core.handler is still a valid mod_python handler but IS DEPRECATED. Use django.core.handlers.modpython, instead.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@169 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Adrian Holovaty
parent
4e094e26e6
commit
ca3d89b70f
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@ -1,9 +1,7 @@
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"Specialized Context and ModPythonRequest classes for Django. Use these!"
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# Specialized template classes for Django, decoupled from the basic template system.
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from django.core.template import Context
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from django.core.template import Context
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from django.utils.httpwrappers import ModPythonRequest
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from django.conf.settings import DEBUG, INTERNAL_IPS
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from django.conf.settings import DEBUG, INTERNAL_IPS
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from pprint import pformat
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class DjangoContext(Context):
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class DjangoContext(Context):
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"""
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"""
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@ -1,150 +1,11 @@
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import os
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# This module is DEPRECATED!
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from django.utils import httpwrappers
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#
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# You should no longer be pointing your mod_python configuration
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# at "django.core.handler".
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#
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# Use "django.core.handlers.modpython" instead.
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# NOTE: do *not* import settings (or any module which eventually imports
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from django.core.handlers.modpython import ModPythonHandler
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# settings) until after ModPythonHandler has been called; otherwise os.environ
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# won't be set up correctly (with respect to settings).
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class ModPythonHandler:
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def __init__(self):
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self._request_middleware = self._view_middleware = self._response_middleware = None
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def __call__(self, req):
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# mod_python fakes the environ, and thus doesn't process SetEnv. This fixes that
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os.environ.update(req.subprocess_env)
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# now that the environ works we can see the correct settings, so imports
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# that use settings now can work
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from django.conf import settings
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from django.core import db
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from django.utils.httpwrappers import ModPythonRequest
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# if we need to set up middleware, now that settings works we can do it now.
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if self._request_middleware is None:
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self.load_middleware()
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try:
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request = ModPythonRequest(req)
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response = self.get_response(req.uri, request)
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finally:
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db.db.close()
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# Apply response middleware
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for middleware_method in self._response_middleware:
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response = middleware_method(request, response)
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# Convert our custom HttpResponse object back into the mod_python req.
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httpwrappers.populate_apache_request(response, req)
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return 0 # mod_python.apache.OK
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def load_middleware(self):
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"""
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Populate middleware lists from settings.MIDDLEWARE_CLASSES.
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Must be called after the environment is fixed (see __call__).
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"""
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from django.conf import settings
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from django.core import exceptions
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self._request_middleware = []
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self._view_middleware = []
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self._response_middleware = []
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for middleware_path in settings.MIDDLEWARE_CLASSES:
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dot = middleware_path.rindex('.')
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mw_module, mw_classname = middleware_path[:dot], middleware_path[dot+1:]
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try:
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mod = __import__(mw_module, '', '', [''])
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except ImportError, e:
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raise exceptions.ImproperlyConfigured, 'Error importing middleware %s: "%s"' % (mw_module, e)
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try:
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mw_class = getattr(mod, mw_classname)
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except AttributeError:
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raise exceptions.ImproperlyConfigured, 'Middleware module "%s" does not define a "%s" class' % (mw_module, mw_classname)
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try:
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mw_instance = mw_class()
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except exceptions.MiddlewareNotUsed:
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continue
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if hasattr(mw_instance, 'process_request'):
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self._request_middleware.append(mw_instance.process_request)
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if hasattr(mw_instance, 'process_view'):
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self._view_middleware.append(mw_instance.process_view)
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if hasattr(mw_instance, 'process_response'):
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self._response_middleware.insert(0, mw_instance.process_response)
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def get_response(self, path, request):
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"Returns an HttpResponse object for the given HttpRequest"
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from django.core import db, exceptions, urlresolvers
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from django.core.mail import mail_admins
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from django.conf.settings import DEBUG, INTERNAL_IPS, ROOT_URLCONF
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# Apply request middleware
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for middleware_method in self._request_middleware:
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response = middleware_method(request)
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if response:
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return response
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conf_module = __import__(ROOT_URLCONF, '', '', [''])
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resolver = urlresolvers.RegexURLResolver(conf_module.urlpatterns)
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try:
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callback, param_dict = resolver.resolve(path)
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# Apply view middleware
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for middleware_method in self._view_middleware:
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response = middleware_method(request, callback, param_dict)
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if response:
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return response
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return callback(request, **param_dict)
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except exceptions.Http404:
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if DEBUG:
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return self.get_technical_error_response(is404=True)
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else:
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resolver = urlresolvers.Error404Resolver(conf_module.handler404)
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callback, param_dict = resolver.resolve()
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return callback(request, **param_dict)
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except db.DatabaseError:
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db.db.rollback()
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if DEBUG:
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return self.get_technical_error_response()
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else:
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subject = 'Database error (%s IP)' % (request.META['REMOTE_ADDR'] in INTERNAL_IPS and 'internal' or 'EXTERNAL')
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message = "%s\n\n%s" % (self._get_traceback(), request)
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mail_admins(subject, message, fail_silently=True)
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return self.get_friendly_error_response(request, conf_module)
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except exceptions.PermissionDenied:
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return httpwrappers.HttpResponseForbidden('<h1>Permission denied</h1>')
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except: # Handle everything else, including SuspiciousOperation, etc.
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if DEBUG:
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return self.get_technical_error_response()
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else:
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subject = 'Coding error (%s IP)' % (request.META['REMOTE_ADDR'] in INTERNAL_IPS and 'internal' or 'EXTERNAL')
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message = "%s\n\n%s" % (self._get_traceback(), request)
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mail_admins(subject, message, fail_silently=True)
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return self.get_friendly_error_response(request, conf_module)
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def get_friendly_error_response(self, request, conf_module):
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"""
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Returns an HttpResponse that displays a PUBLIC error message for a
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fundamental database or coding error.
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"""
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from django.core import urlresolvers
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resolver = urlresolvers.Error404Resolver(conf_module.handler500)
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callback, param_dict = resolver.resolve()
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return callback(request, **param_dict)
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def get_technical_error_response(self, is404=False):
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"""
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Returns an HttpResponse that displays a TECHNICAL error message for a
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fundamental database or coding error.
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"""
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error_string = "<pre>There's been an error:\n\n%s</pre>" % self._get_traceback()
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responseClass = is404 and httpwrappers.HttpResponseNotFound or httpwrappers.HttpResponseServerError
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return responseClass(error_string)
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def _get_traceback(self):
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"Helper function to return the traceback as a string"
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import sys, traceback
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return '\n'.join(traceback.format_exception(*sys.exc_info()))
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def handler(req):
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def handler(req):
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return ModPythonHandler()(req)
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return ModPythonHandler()(req)
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@ -0,0 +1,279 @@
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from django.utils import datastructures, httpwrappers
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from pprint import pformat
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import os
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# NOTE: do *not* import settings (or any module which eventually imports
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# settings) until after ModPythonHandler has been called; otherwise os.environ
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# won't be set up correctly (with respect to settings).
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class ModPythonRequest(httpwrappers.HttpRequest):
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def __init__(self, req):
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self._req = req
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self.path = req.uri
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def __repr__(self):
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return '<ModPythonRequest\npath:%s,\nGET:%s,\nPOST:%s,\nCOOKIES:%s,\nMETA:%s,\nuser:%s>' % \
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(self.path, pformat(self.GET), pformat(self.POST), pformat(self.COOKIES),
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pformat(self.META), pformat(self.user))
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def get_full_path(self):
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return '%s%s' % (self.path, self._req.args and ('?' + self._req.args) or '')
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def _load_post_and_files(self):
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"Populates self._post and self._files"
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if self._req.headers_in.has_key('content-type') and self._req.headers_in['content-type'].startswith('multipart'):
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self._post, self._files = httpwrappers.parse_file_upload(self._req.headers_in, self._req.read())
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else:
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self._post, self._files = httpwrappers.QueryDict(self._req.read()), datastructures.MultiValueDict()
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def _get_request(self):
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if not hasattr(self, '_request'):
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self._request = datastructures.MergeDict(self.POST, self.GET)
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return self._request
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def _get_get(self):
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if not hasattr(self, '_get'):
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self._get = httpwrappers.QueryDict(self._req.args)
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return self._get
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def _set_get(self, get):
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self._get = get
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def _get_post(self):
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if not hasattr(self, '_post'):
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self._load_post_and_files()
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return self._post
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def _set_post(self, post):
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self._post = post
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def _get_cookies(self):
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if not hasattr(self, '_cookies'):
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self._cookies = httpwrappers.parse_cookie(self._req.headers_in.get('cookie', ''))
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return self._cookies
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def _set_cookies(self, cookies):
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self._cookies = cookies
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def _get_files(self):
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if not hasattr(self, '_files'):
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self._load_post_and_files()
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return self._files
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def _get_meta(self):
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"Lazy loader that returns self.META dictionary"
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if not hasattr(self, '_meta'):
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self._meta = {
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'AUTH_TYPE': self._req.ap_auth_type,
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'CONTENT_LENGTH': self._req.clength, # This may be wrong
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'CONTENT_TYPE': self._req.content_type, # This may be wrong
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'GATEWAY_INTERFACE': 'CGI/1.1',
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'PATH_INFO': self._req.path_info,
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'PATH_TRANSLATED': None, # Not supported
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'QUERY_STRING': self._req.args,
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'REMOTE_ADDR': self._req.connection.remote_ip,
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'REMOTE_HOST': None, # DNS lookups not supported
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'REMOTE_IDENT': self._req.connection.remote_logname,
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'REMOTE_USER': self._req.user,
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'REQUEST_METHOD': self._req.method,
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'SCRIPT_NAME': None, # Not supported
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'SERVER_NAME': self._req.server.server_hostname,
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'SERVER_PORT': self._req.server.port,
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'SERVER_PROTOCOL': self._req.protocol,
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'SERVER_SOFTWARE': 'mod_python'
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}
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for key, value in self._req.headers_in.items():
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key = 'HTTP_' + key.upper().replace('-', '_')
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self._meta[key] = value
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return self._meta
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def _load_session_and_user(self):
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from django.models.auth import sessions
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from django.conf.settings import AUTH_SESSION_COOKIE
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session_cookie = self.COOKIES.get(AUTH_SESSION_COOKIE, '')
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try:
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self._session = sessions.get_session_from_cookie(session_cookie)
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self._user = self._session.get_user()
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except sessions.SessionDoesNotExist:
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from django.parts.auth import anonymoususers
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self._session = None
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self._user = anonymoususers.AnonymousUser()
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def _get_session(self):
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if not hasattr(self, '_session'):
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self._load_session_and_user()
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return self._session
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def _set_session(self, session):
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self._session = session
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def _get_user(self):
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if not hasattr(self, '_user'):
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self._load_session_and_user()
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return self._user
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def _set_user(self, user):
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self._user = user
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GET = property(_get_get, _set_get)
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POST = property(_get_post, _set_post)
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COOKIES = property(_get_cookies, _set_cookies)
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FILES = property(_get_files)
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META = property(_get_meta)
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REQUEST = property(_get_request)
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session = property(_get_session, _set_session)
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user = property(_get_user, _set_user)
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class ModPythonHandler:
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def __init__(self):
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self._request_middleware = self._view_middleware = self._response_middleware = None
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|
|
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def __call__(self, req):
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|
# mod_python fakes the environ, and thus doesn't process SetEnv. This fixes that
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os.environ.update(req.subprocess_env)
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|
|
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|
# now that the environ works we can see the correct settings, so imports
|
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|
# that use settings now can work
|
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|
from django.conf import settings
|
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|
from django.core import db
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|
|
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|
# if we need to set up middleware, now that settings works we can do it now.
|
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|
if self._request_middleware is None:
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|
self.load_middleware()
|
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|
|
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|
try:
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request = ModPythonRequest(req)
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response = self.get_response(req.uri, request)
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|
finally:
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db.db.close()
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|
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# Apply response middleware
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for middleware_method in self._response_middleware:
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response = middleware_method(request, response)
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# Convert our custom HttpResponse object back into the mod_python req.
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populate_apache_request(response, req)
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return 0 # mod_python.apache.OK
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def load_middleware(self):
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|
"""
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|
Populate middleware lists from settings.MIDDLEWARE_CLASSES.
|
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|
|
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|
Must be called after the environment is fixed (see __call__).
|
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|
"""
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|
from django.conf import settings
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from django.core import exceptions
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self._request_middleware = []
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|
self._view_middleware = []
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|
self._response_middleware = []
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for middleware_path in settings.MIDDLEWARE_CLASSES:
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|
dot = middleware_path.rindex('.')
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|
mw_module, mw_classname = middleware_path[:dot], middleware_path[dot+1:]
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|
try:
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mod = __import__(mw_module, '', '', [''])
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|
except ImportError, e:
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|
raise exceptions.ImproperlyConfigured, 'Error importing middleware %s: "%s"' % (mw_module, e)
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|
try:
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|
mw_class = getattr(mod, mw_classname)
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|
except AttributeError:
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|
raise exceptions.ImproperlyConfigured, 'Middleware module "%s" does not define a "%s" class' % (mw_module, mw_classname)
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|
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|
try:
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|
mw_instance = mw_class()
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|
except exceptions.MiddlewareNotUsed:
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|
continue
|
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|
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|
if hasattr(mw_instance, 'process_request'):
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|
self._request_middleware.append(mw_instance.process_request)
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|
if hasattr(mw_instance, 'process_view'):
|
||||||
|
self._view_middleware.append(mw_instance.process_view)
|
||||||
|
if hasattr(mw_instance, 'process_response'):
|
||||||
|
self._response_middleware.insert(0, mw_instance.process_response)
|
||||||
|
|
||||||
|
def get_response(self, path, request):
|
||||||
|
"Returns an HttpResponse object for the given HttpRequest"
|
||||||
|
from django.core import db, exceptions, urlresolvers
|
||||||
|
from django.core.mail import mail_admins
|
||||||
|
from django.conf.settings import DEBUG, INTERNAL_IPS, ROOT_URLCONF
|
||||||
|
|
||||||
|
# Apply request middleware
|
||||||
|
for middleware_method in self._request_middleware:
|
||||||
|
response = middleware_method(request)
|
||||||
|
if response:
|
||||||
|
return response
|
||||||
|
|
||||||
|
conf_module = __import__(ROOT_URLCONF, '', '', [''])
|
||||||
|
resolver = urlresolvers.RegexURLResolver(conf_module.urlpatterns)
|
||||||
|
try:
|
||||||
|
callback, param_dict = resolver.resolve(path)
|
||||||
|
# Apply view middleware
|
||||||
|
for middleware_method in self._view_middleware:
|
||||||
|
response = middleware_method(request, callback, param_dict)
|
||||||
|
if response:
|
||||||
|
return response
|
||||||
|
return callback(request, **param_dict)
|
||||||
|
except exceptions.Http404:
|
||||||
|
if DEBUG:
|
||||||
|
return self.get_technical_error_response(is404=True)
|
||||||
|
else:
|
||||||
|
resolver = urlresolvers.Error404Resolver(conf_module.handler404)
|
||||||
|
callback, param_dict = resolver.resolve()
|
||||||
|
return callback(request, **param_dict)
|
||||||
|
except db.DatabaseError:
|
||||||
|
db.db.rollback()
|
||||||
|
if DEBUG:
|
||||||
|
return self.get_technical_error_response()
|
||||||
|
else:
|
||||||
|
subject = 'Database error (%s IP)' % (request.META['REMOTE_ADDR'] in INTERNAL_IPS and 'internal' or 'EXTERNAL')
|
||||||
|
message = "%s\n\n%s" % (self._get_traceback(), request)
|
||||||
|
mail_admins(subject, message, fail_silently=True)
|
||||||
|
return self.get_friendly_error_response(request, conf_module)
|
||||||
|
except exceptions.PermissionDenied:
|
||||||
|
return httpwrappers.HttpResponseForbidden('<h1>Permission denied</h1>')
|
||||||
|
except: # Handle everything else, including SuspiciousOperation, etc.
|
||||||
|
if DEBUG:
|
||||||
|
return self.get_technical_error_response()
|
||||||
|
else:
|
||||||
|
subject = 'Coding error (%s IP)' % (request.META['REMOTE_ADDR'] in INTERNAL_IPS and 'internal' or 'EXTERNAL')
|
||||||
|
message = "%s\n\n%s" % (self._get_traceback(), request)
|
||||||
|
mail_admins(subject, message, fail_silently=True)
|
||||||
|
return self.get_friendly_error_response(request, conf_module)
|
||||||
|
|
||||||
|
def get_friendly_error_response(self, request, conf_module):
|
||||||
|
"""
|
||||||
|
Returns an HttpResponse that displays a PUBLIC error message for a
|
||||||
|
fundamental database or coding error.
|
||||||
|
"""
|
||||||
|
from django.core import urlresolvers
|
||||||
|
resolver = urlresolvers.Error404Resolver(conf_module.handler500)
|
||||||
|
callback, param_dict = resolver.resolve()
|
||||||
|
return callback(request, **param_dict)
|
||||||
|
|
||||||
|
def get_technical_error_response(self, is404=False):
|
||||||
|
"""
|
||||||
|
Returns an HttpResponse that displays a TECHNICAL error message for a
|
||||||
|
fundamental database or coding error.
|
||||||
|
"""
|
||||||
|
error_string = "<pre>There's been an error:\n\n%s</pre>" % self._get_traceback()
|
||||||
|
responseClass = is404 and httpwrappers.HttpResponseNotFound or httpwrappers.HttpResponseServerError
|
||||||
|
return responseClass(error_string)
|
||||||
|
|
||||||
|
def _get_traceback(self):
|
||||||
|
"Helper function to return the traceback as a string"
|
||||||
|
import sys, traceback
|
||||||
|
return '\n'.join(traceback.format_exception(*sys.exc_info()))
|
||||||
|
|
||||||
|
def populate_apache_request(http_response, mod_python_req):
|
||||||
|
"Populates the mod_python request object with an HttpResponse"
|
||||||
|
mod_python_req.content_type = http_response['Content-Type'] or httpwrappers.DEFAULT_MIME_TYPE
|
||||||
|
del http_response['Content-Type']
|
||||||
|
if http_response.cookies:
|
||||||
|
mod_python_req.headers_out['Set-Cookie'] = http_response.cookies.output(header='')
|
||||||
|
for key, value in http_response.headers.items():
|
||||||
|
mod_python_req.headers_out[key] = value
|
||||||
|
mod_python_req.status = http_response.status_code
|
||||||
|
mod_python_req.write(http_response.get_content_as_string('utf-8'))
|
||||||
|
|
||||||
|
def handler(req):
|
||||||
|
# mod_python hooks into this function.
|
||||||
|
return ModPythonHandler()(req)
|
||||||
|
|
@ -0,0 +1,242 @@
|
||||||
|
from django.utils import datastructures, httpwrappers
|
||||||
|
from pprint import pformat
|
||||||
|
|
||||||
|
class WSGIRequest(httpwrappers.HttpRequest):
|
||||||
|
def __init__(self, environ):
|
||||||
|
self.environ = environ
|
||||||
|
self.path = environ['PATH_INFO']
|
||||||
|
self.META = environ
|
||||||
|
|
||||||
|
def __repr__(self):
|
||||||
|
from pprint import pformat
|
||||||
|
return '<DjangoRequest\nGET:%s,\nPOST:%s,\nCOOKIES:%s,\nMETA:%s>' % \
|
||||||
|
(pformat(self.GET), pformat(self.POST), pformat(self.COOKIES),
|
||||||
|
pformat(self.META))
|
||||||
|
|
||||||
|
def get_full_path(self):
|
||||||
|
return '%s%s' % (self.path, self.environ['QUERY_STRING'] and ('?' + self.environ['QUERY_STRING']) or '')
|
||||||
|
|
||||||
|
def _load_post_and_files(self):
|
||||||
|
# Populates self._post and self._files
|
||||||
|
if self.environ['REQUEST_METHOD'] == 'POST':
|
||||||
|
post_data = self.environ['wsgi.input'].read(int(self.environ["CONTENT_LENGTH"]))
|
||||||
|
if self.environ.get('CONTENT_TYPE', '').startswith('multipart'):
|
||||||
|
header_dict = dict([(k, v) for k, v in self.environ.items() if k.startswith('HTTP_')])
|
||||||
|
self._post, self._files = httpwrappers.parse_file_upload(header_dict, post_data)
|
||||||
|
else:
|
||||||
|
self._post, self._files = httpwrappers.QueryDict(post_data), datastructures.MultiValueDict()
|
||||||
|
else:
|
||||||
|
self._post, self._files = httpwrappers.QueryDict(''), 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 = httpwrappers.QueryDict(self.environ['QUERY_STRING'])
|
||||||
|
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 = httpwrappers.parse_cookie(self.environ.get('HTTP_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 _load_session_and_user(self):
|
||||||
|
from django.models.auth import sessions
|
||||||
|
from django.conf.settings import AUTH_SESSION_COOKIE
|
||||||
|
session_cookie = self.COOKIES.get(AUTH_SESSION_COOKIE, '')
|
||||||
|
try:
|
||||||
|
self._session = sessions.get_session_from_cookie(session_cookie)
|
||||||
|
self._user = self._session.get_user()
|
||||||
|
except sessions.SessionDoesNotExist:
|
||||||
|
from django.parts.auth import anonymoususers
|
||||||
|
self._session = None
|
||||||
|
self._user = anonymoususers.AnonymousUser()
|
||||||
|
|
||||||
|
def _get_session(self):
|
||||||
|
if not hasattr(self, '_session'):
|
||||||
|
self._load_session_and_user()
|
||||||
|
return self._session
|
||||||
|
|
||||||
|
def _set_session(self, session):
|
||||||
|
self._session = session
|
||||||
|
|
||||||
|
def _get_user(self):
|
||||||
|
if not hasattr(self, '_user'):
|
||||||
|
self._load_session_and_user()
|
||||||
|
return self._user
|
||||||
|
|
||||||
|
def _set_user(self, user):
|
||||||
|
self._user = user
|
||||||
|
|
||||||
|
GET = property(_get_get, _set_get)
|
||||||
|
POST = property(_get_post, _set_post)
|
||||||
|
COOKIES = property(_get_cookies, _set_cookies)
|
||||||
|
FILES = property(_get_files)
|
||||||
|
REQUEST = property(_get_request)
|
||||||
|
session = property(_get_session, _set_session)
|
||||||
|
user = property(_get_user, _set_user)
|
||||||
|
|
||||||
|
class WSGIHandler:
|
||||||
|
def __init__(self):
|
||||||
|
self._request_middleware = self._view_middleware = self._response_middleware = None
|
||||||
|
|
||||||
|
def __call__(self, environ, start_response):
|
||||||
|
from django.conf import settings
|
||||||
|
from django.core import db
|
||||||
|
|
||||||
|
# Set up middleware if needed. We couldn't do this earlier, because
|
||||||
|
# settings weren't available.
|
||||||
|
if self._request_middleware is None:
|
||||||
|
self.load_middleware()
|
||||||
|
|
||||||
|
try:
|
||||||
|
request = WSGIRequest(environ)
|
||||||
|
response = self.get_response(request.path, request)
|
||||||
|
finally:
|
||||||
|
db.db.close()
|
||||||
|
|
||||||
|
# Apply response middleware
|
||||||
|
for middleware_method in self._response_middleware:
|
||||||
|
response = middleware_method(request, response)
|
||||||
|
|
||||||
|
status = str(response.status_code) + ' ' # TODO: Extra space here is a hack.
|
||||||
|
response_headers = response.headers
|
||||||
|
if response.cookies:
|
||||||
|
response_headers['Set-Cookie'] = response.cookies.output(header='')
|
||||||
|
output = [response.get_content_as_string('utf-8')]
|
||||||
|
start_response(status, response_headers.items())
|
||||||
|
return output
|
||||||
|
|
||||||
|
def load_middleware(self):
|
||||||
|
"""
|
||||||
|
Populate middleware lists from settings.MIDDLEWARE_CLASSES.
|
||||||
|
|
||||||
|
Must be called after the environment is fixed (see __call__).
|
||||||
|
"""
|
||||||
|
from django.conf import settings
|
||||||
|
from django.core import exceptions
|
||||||
|
self._request_middleware = []
|
||||||
|
self._view_middleware = []
|
||||||
|
self._response_middleware = []
|
||||||
|
for middleware_path in settings.MIDDLEWARE_CLASSES:
|
||||||
|
dot = middleware_path.rindex('.')
|
||||||
|
mw_module, mw_classname = middleware_path[:dot], middleware_path[dot+1:]
|
||||||
|
try:
|
||||||
|
mod = __import__(mw_module, '', '', [''])
|
||||||
|
except ImportError, e:
|
||||||
|
raise exceptions.ImproperlyConfigured, \
|
||||||
|
'Error importing middleware %s: "%s"' % (mw_module, e)
|
||||||
|
try:
|
||||||
|
mw_class = getattr(mod, mw_classname)
|
||||||
|
except AttributeError:
|
||||||
|
raise exceptions.ImproperlyConfigured, \
|
||||||
|
'Middleware module "%s" does not define a "%s" class' % (mw_module, mw_classname)
|
||||||
|
|
||||||
|
try:
|
||||||
|
mw_instance = mw_class()
|
||||||
|
except exceptions.MiddlewareNotUsed:
|
||||||
|
continue
|
||||||
|
|
||||||
|
if hasattr(mw_instance, 'process_request'):
|
||||||
|
self._request_middleware.append(mw_instance.process_request)
|
||||||
|
if hasattr(mw_instance, 'process_view'):
|
||||||
|
self._view_middleware.append(mw_instance.process_view)
|
||||||
|
if hasattr(mw_instance, 'process_response'):
|
||||||
|
self._response_middleware.insert(0, mw_instance.process_response)
|
||||||
|
|
||||||
|
def get_response(self, path, request):
|
||||||
|
"Returns an HttpResponse object for the given HttpRequest"
|
||||||
|
from django.core import db, exceptions, urlresolvers
|
||||||
|
from django.core.mail import mail_admins
|
||||||
|
from django.conf.settings import DEBUG, INTERNAL_IPS, ROOT_URLCONF
|
||||||
|
|
||||||
|
# Apply request middleware
|
||||||
|
for middleware_method in self._request_middleware:
|
||||||
|
response = middleware_method(request)
|
||||||
|
if response:
|
||||||
|
return response
|
||||||
|
|
||||||
|
conf_module = __import__(ROOT_URLCONF, '', '', [''])
|
||||||
|
resolver = urlresolvers.RegexURLResolver(conf_module.urlpatterns)
|
||||||
|
try:
|
||||||
|
callback, param_dict = resolver.resolve(path)
|
||||||
|
# Apply view middleware
|
||||||
|
for middleware_method in self._view_middleware:
|
||||||
|
response = middleware_method(request, callback, param_dict)
|
||||||
|
if response:
|
||||||
|
return response
|
||||||
|
return callback(request, **param_dict)
|
||||||
|
except exceptions.Http404:
|
||||||
|
if DEBUG:
|
||||||
|
return self.get_technical_error_response(is404=True)
|
||||||
|
else:
|
||||||
|
resolver = urlresolvers.Error404Resolver(conf_module.handler404)
|
||||||
|
callback, param_dict = resolver.resolve()
|
||||||
|
return callback(request, **param_dict)
|
||||||
|
except db.DatabaseError:
|
||||||
|
db.db.rollback()
|
||||||
|
if DEBUG:
|
||||||
|
return self.get_technical_error_response()
|
||||||
|
else:
|
||||||
|
subject = 'Database error (%s IP)' % \
|
||||||
|
(request.META['REMOTE_ADDR'] in INTERNAL_IPS and 'internal' or 'EXTERNAL')
|
||||||
|
message = "%s\n\n%s" % (self._get_traceback(), request)
|
||||||
|
mail_admins(subject, message, fail_silently=True)
|
||||||
|
return self.get_friendly_error_response(request, conf_module)
|
||||||
|
except exceptions.PermissionDenied:
|
||||||
|
return httpwrappers.HttpResponseForbidden('<h1>Permission denied</h1>')
|
||||||
|
except: # Handle everything else, including SuspiciousOperation, etc.
|
||||||
|
if DEBUG:
|
||||||
|
return self.get_technical_error_response()
|
||||||
|
else:
|
||||||
|
subject = 'Coding error (%s IP)' % \
|
||||||
|
(request.META['REMOTE_ADDR'] in INTERNAL_IPS and 'internal' or 'EXTERNAL')
|
||||||
|
message = "%s\n\n%s" % (self._get_traceback(), request)
|
||||||
|
mail_admins(subject, message, fail_silently=True)
|
||||||
|
return self.get_friendly_error_response(request, conf_module)
|
||||||
|
|
||||||
|
def get_friendly_error_response(self, request, conf_module):
|
||||||
|
"""
|
||||||
|
Returns an HttpResponse that displays a PUBLIC error message for a
|
||||||
|
fundamental database or coding error.
|
||||||
|
"""
|
||||||
|
from django.core import urlresolvers
|
||||||
|
resolver = urlresolvers.Error404Resolver(conf_module.handler500)
|
||||||
|
callback, param_dict = resolver.resolve()
|
||||||
|
return callback(request, **param_dict)
|
||||||
|
|
||||||
|
def get_technical_error_response(self, is404=False):
|
||||||
|
"""
|
||||||
|
Returns an HttpResponse that displays a TECHNICAL error message for a
|
||||||
|
fundamental database or coding error.
|
||||||
|
"""
|
||||||
|
error_string = "<pre>There's been an error:\n\n%s</pre>" % self._get_traceback()
|
||||||
|
responseClass = is404 and httpwrappers.HttpResponseNotFound or httpwrappers.HttpResponseServerError
|
||||||
|
return responseClass(error_string)
|
||||||
|
|
||||||
|
def _get_traceback(self):
|
||||||
|
"Helper function to return the traceback as a string"
|
||||||
|
import sys, traceback
|
||||||
|
return '\n'.join(traceback.format_exception(*sys.exc_info()))
|
||||||
|
|
@ -24,124 +24,6 @@ class HttpRequest(object): # needs to be new-style class because subclasses defi
|
||||||
def get_full_path(self):
|
def get_full_path(self):
|
||||||
return ''
|
return ''
|
||||||
|
|
||||||
class ModPythonRequest(HttpRequest):
|
|
||||||
def __init__(self, req):
|
|
||||||
self._req = req
|
|
||||||
self.path = req.uri
|
|
||||||
|
|
||||||
def __repr__(self):
|
|
||||||
return '<ModPythonRequest\npath:%s,\nGET:%s,\nPOST:%s,\nCOOKIES:%s,\nMETA:%s,\nuser:%s>' % \
|
|
||||||
(self.path, pformat(self.GET), pformat(self.POST), pformat(self.COOKIES),
|
|
||||||
pformat(self.META), pformat(self.user))
|
|
||||||
|
|
||||||
def get_full_path(self):
|
|
||||||
return '%s%s' % (self.path, self._req.args and ('?' + self._req.args) or '')
|
|
||||||
|
|
||||||
def _load_post_and_files(self):
|
|
||||||
"Populates self._post and self._files"
|
|
||||||
if self._req.headers_in.has_key('content-type') and self._req.headers_in['content-type'].startswith('multipart'):
|
|
||||||
self._post, self._files = parse_file_upload(self._req.headers_in, self._req.read())
|
|
||||||
else:
|
|
||||||
self._post, self._files = QueryDict(self._req.read()), 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 = QueryDict(self._req.args)
|
|
||||||
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 = 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._req.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': None, # Not supported
|
|
||||||
'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 _load_session_and_user(self):
|
|
||||||
from django.models.auth import sessions
|
|
||||||
from django.conf.settings import AUTH_SESSION_COOKIE
|
|
||||||
session_cookie = self.COOKIES.get(AUTH_SESSION_COOKIE, '')
|
|
||||||
try:
|
|
||||||
self._session = sessions.get_session_from_cookie(session_cookie)
|
|
||||||
self._user = self._session.get_user()
|
|
||||||
except sessions.SessionDoesNotExist:
|
|
||||||
from django.parts.auth import anonymoususers
|
|
||||||
self._session = None
|
|
||||||
self._user = anonymoususers.AnonymousUser()
|
|
||||||
|
|
||||||
def _get_session(self):
|
|
||||||
if not hasattr(self, '_session'):
|
|
||||||
self._load_session_and_user()
|
|
||||||
return self._session
|
|
||||||
|
|
||||||
def _set_session(self, session):
|
|
||||||
self._session = session
|
|
||||||
|
|
||||||
def _get_user(self):
|
|
||||||
if not hasattr(self, '_user'):
|
|
||||||
self._load_session_and_user()
|
|
||||||
return self._user
|
|
||||||
|
|
||||||
def _set_user(self, user):
|
|
||||||
self._user = user
|
|
||||||
|
|
||||||
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)
|
|
||||||
session = property(_get_session, _set_session)
|
|
||||||
user = property(_get_user, _set_user)
|
|
||||||
|
|
||||||
def parse_file_upload(header_dict, post_data):
|
def parse_file_upload(header_dict, post_data):
|
||||||
"Returns a tuple of (POST MultiValueDict, FILES MultiValueDict)"
|
"Returns a tuple of (POST MultiValueDict, FILES MultiValueDict)"
|
||||||
import email, email.Message
|
import email, email.Message
|
||||||
|
|
@ -336,14 +218,3 @@ class HttpResponseServerError(HttpResponse):
|
||||||
def __init__(self, content='', mimetype=DEFAULT_MIME_TYPE):
|
def __init__(self, content='', mimetype=DEFAULT_MIME_TYPE):
|
||||||
HttpResponse.__init__(self, content, mimetype)
|
HttpResponse.__init__(self, content, mimetype)
|
||||||
self.status_code = 500
|
self.status_code = 500
|
||||||
|
|
||||||
def populate_apache_request(http_response, mod_python_req):
|
|
||||||
"Populates the mod_python request object with an HttpResponse"
|
|
||||||
mod_python_req.content_type = http_response['Content-Type'] or DEFAULT_MIME_TYPE
|
|
||||||
del http_response['Content-Type']
|
|
||||||
if http_response.cookies:
|
|
||||||
mod_python_req.headers_out['Set-Cookie'] = http_response.cookies.output(header='')
|
|
||||||
for key, value in http_response.headers.items():
|
|
||||||
mod_python_req.headers_out[key] = value
|
|
||||||
mod_python_req.status = http_response.status_code
|
|
||||||
mod_python_req.write(http_response.get_content_as_string('utf-8'))
|
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue