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222 lines
8.6 KiB
222 lines
8.6 KiB
import os |
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from pprint import pformat |
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from django import http |
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from django.core import signals |
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from django.core.handlers.base import BaseHandler |
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from django.core.urlresolvers import set_script_prefix |
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from django.utils import datastructures |
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from django.utils.encoding import force_unicode, smart_str |
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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(http.HttpRequest): |
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def __init__(self, req): |
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self._req = req |
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# FIXME: This isn't ideal. The request URI may be encoded (it's |
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# non-normalized) slightly differently to the "real" SCRIPT_NAME |
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# and PATH_INFO values. This causes problems when we compute path_info, |
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# below. For now, don't use script names that will be subject to |
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# encoding/decoding. |
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self.path = force_unicode(req.uri) |
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root = req.get_options().get('django.root', '') |
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self.django_root = root |
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# req.path_info isn't necessarily computed correctly in all |
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# circumstances (it's out of mod_python's control a bit), so we use |
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# req.uri and some string manipulations to get the right value. |
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if root and req.uri.startswith(root): |
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self.path_info = force_unicode(req.uri[len(root):]) |
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else: |
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self.path_info = self.path |
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if not self.path_info: |
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# Django prefers empty paths to be '/', rather than '', to give us |
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# a common start character for URL patterns. So this is a little |
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# naughty, but also pretty harmless. |
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self.path_info = u'/' |
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self._post_parse_error = False |
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def __repr__(self): |
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# Since this is called as part of error handling, we need to be very |
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# robust against potentially malformed input. |
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try: |
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get = pformat(self.GET) |
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except: |
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get = '<could not parse>' |
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if self._post_parse_error: |
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post = '<could not parse>' |
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else: |
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try: |
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post = pformat(self.POST) |
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except: |
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post = '<could not parse>' |
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try: |
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cookies = pformat(self.COOKIES) |
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except: |
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cookies = '<could not parse>' |
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try: |
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meta = pformat(self.META) |
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except: |
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meta = '<could not parse>' |
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return smart_str(u'<ModPythonRequest\npath:%s,\nGET:%s,\nPOST:%s,\nCOOKIES:%s,\nMETA:%s>' % |
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(self.path, unicode(get), unicode(post), |
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unicode(cookies), unicode(meta))) |
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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 is_secure(self): |
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try: |
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return self._req.is_https() |
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except AttributeError: |
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# mod_python < 3.2.10 doesn't have req.is_https(). |
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return self._req.subprocess_env.get('HTTPS', '').lower() in ('on', '1') |
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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 'content-type' in self._req.headers_in and self._req.headers_in['content-type'].startswith('multipart'): |
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self._raw_post_data = '' |
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try: |
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self._post, self._files = self.parse_file_upload(self.META, self._req) |
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except: |
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# See django.core.handlers.wsgi.WSGIHandler for an explanation |
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# of what's going on here. |
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self._post = http.QueryDict('') |
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self._files = datastructures.MultiValueDict() |
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self._post_parse_error = True |
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raise |
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else: |
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self._post, self._files = http.QueryDict(self.raw_post_data, encoding=self._encoding), 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 = http.QueryDict(self._req.args, encoding=self._encoding) |
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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 = http.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.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': self.django_root, |
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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 _get_raw_post_data(self): |
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try: |
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return self._raw_post_data |
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except AttributeError: |
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self._raw_post_data = self._req.read() |
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return self._raw_post_data |
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def _get_method(self): |
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return self.META['REQUEST_METHOD'].upper() |
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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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raw_post_data = property(_get_raw_post_data) |
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method = property(_get_method) |
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class ModPythonHandler(BaseHandler): |
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request_class = ModPythonRequest |
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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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# 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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set_script_prefix(req.get_options().get('django.root', '')) |
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signals.request_started.send(sender=self.__class__) |
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try: |
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try: |
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request = self.request_class(req) |
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except UnicodeDecodeError: |
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response = http.HttpResponseBadRequest() |
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else: |
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response = self.get_response(request) |
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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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response = self.apply_response_fixes(request, response) |
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finally: |
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signals.request_finished.send(sender=self.__class__) |
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# Convert our custom HttpResponse object back into the mod_python req. |
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req.content_type = response['Content-Type'] |
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for key, value in response.items(): |
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if key != 'content-type': |
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req.headers_out[str(key)] = str(value) |
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for c in response.cookies.values(): |
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req.headers_out.add('Set-Cookie', c.output(header='')) |
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req.status = response.status_code |
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try: |
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for chunk in response: |
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req.write(chunk) |
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finally: |
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response.close() |
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return 0 # mod_python.apache.OK |
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def handler(req): |
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# mod_python hooks into this function. |
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return ModPythonHandler()(req)
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