[ http://issues.apache.org/jira/browse/MODPYTHON-170?page=all ]
Graham Dumpleton updated MODPYTHON-170:
---------------------------------------
Fix Version/s: 3.3
With possible howls of protest, I'm going to add this in for 3.3 except that
only doing it for request, server and connection objects. At this point it
doesn't make sense to do it for filter objects as how mod_python sets up a
bucket brigade probably makes it pointless as that bucket brigade may
interfere. I will call the members _request_rec, _server_rec and _conn_rec. The
leading underscore is to indicate they are semi private feature and not for
normal use.
Sorry, just couldn't resist in putting this in now as have some quite amazing
stuff working which requires getting proper access to the underlying Apache
structures. I would like other people to be able to experiment with this stuff
without hacking mod_python first. :-)
> Allow access to request_rec/server_rec/conn_rec/filter_rec as Python CObject.
> -----------------------------------------------------------------------------
>
> Key: MODPYTHON-170
> URL: http://issues.apache.org/jira/browse/MODPYTHON-170
> Project: mod_python
> Issue Type: New Feature
> Components: core
> Reporter: Graham Dumpleton
> Assigned To: Graham Dumpleton
> Fix For: 3.3
>
>
> At the moment, if mod_python doesn't expose a feature of Apache that you may
> want to use, you are stuffed and either have to convince mod_python
> maintainers to add it, patch your mod_python or create a Python loadable
> module that builds against both mod_python headers and Apache headers.
> In the latter, it needs access to mod_python headers so as to be able to look
> inside the mod_python requestobject to get at the request_rec Apache
> structure. In practice, the only thing from the mod_python requestobject that
> such a extension module is going to want, is the request_rec structure, thus
> it is probably simpler and makes building such an extension easier, if the
> mod_python requestobject provided a "request_rec" attribute which was a
> Python CObject wrapper which wrapped the C request_rec pointer. Similarly,
> access to server_rec/conn_rec/filter_rec could also be provided.
> For example, you might have a C extension function like:
> typedef int (*ssl_is_https_t)(conn_rec*);
> static PyObject* is_https(PyObject* module, PyObject* args)
> {
> PyObject* req_object = 0;
> request_rec* req;
> ssl_is_https_t ssl_is_https = 0;
> int result = 0;
> if (!PyArg_ParseTuple(args,"O",&req_object))
> return 0;
> if (! PyCObject_Check(req_object))
> PyErr_SetString(PyExc_TypeError,"not a CObject");
> req = PyCObject_AsVoidPtr(req_object);
> ssl_is_https = (ssl_is_https_t)apr_dynamic_fn_retrieve("ssl_is_https");
> if (ssl_is_https == 0)
> return Py_BuildValue("i",0);
> result = ssl_is_https(req->connection);
> return Py_BuildValue("i",result);
> }
> The call to this form Python code would be:
> import myextension
> def handler(req):
> if myextension.is_https(req.request_rec):
> ...
> Note that something like this was posted some time back:
> http://www.modpython.org/pipermail/mod_python/2006-February/020340.html
> but the problem with it was that it needed the mod_python header files when
> compiling. Using the Python CObject avoids that. Any Python distutils
> setup.py file still needs to know where the Apache header files etc are, but
> it can use apxs to get that.
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