mirror of
https://github.com/samba-team/samba.git
synced 2024-12-24 21:34:56 +03:00
348 lines
9.4 KiB
C
348 lines
9.4 KiB
C
/*
|
|
Unix SMB/CIFS implementation.
|
|
Samba utility functions
|
|
Copyright © Jelmer Vernooij <jelmer@samba.org> 2008
|
|
|
|
Implementation of the WSGI interface described in PEP0333
|
|
(http://www.python.org/dev/peps/pep-0333)
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
#include "web_server/web_server.h"
|
|
#include "lib/util/dlinklist.h"
|
|
#include "lib/util/data_blob.h"
|
|
#include <Python.h>
|
|
|
|
typedef struct {
|
|
PyObject_HEAD
|
|
struct websrv_context *web;
|
|
} web_request_Object;
|
|
|
|
static PyObject *start_response(PyObject *self, PyObject *args, PyObject *kwargs)
|
|
{
|
|
PyObject *response_header, *exc_info = NULL;
|
|
char *status;
|
|
int i;
|
|
const char *kwnames[] = {
|
|
"status", "response_header", "exc_info", NULL
|
|
};
|
|
web_request_Object *py_web = (web_request_Object *)self;
|
|
struct websrv_context *web = py_web->web;
|
|
struct http_header *headers = NULL;
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "sO|O:start_response", discard_const_p(char *, kwnames), &status, &response_header, &exc_info)) {
|
|
return NULL;
|
|
}
|
|
|
|
/* FIXME: exc_info */
|
|
|
|
if (!PyList_Check(response_header)) {
|
|
PyErr_SetString(PyExc_TypeError, "response_header should be list");
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < PyList_Size(response_header); i++) {
|
|
struct http_header *hdr = talloc_zero(web, struct http_header);
|
|
PyObject *item = PyList_GetItem(response_header, i);
|
|
PyObject *py_name, *py_value;
|
|
|
|
if (!PyTuple_Check(item)) {
|
|
PyErr_SetString(PyExc_TypeError, "Expected tuple");
|
|
return NULL;
|
|
}
|
|
|
|
if (PyTuple_Size(item) != 2) {
|
|
PyErr_SetString(PyExc_TypeError, "header tuple has invalid size, expected 2");
|
|
return NULL;
|
|
}
|
|
|
|
py_name = PyTuple_GetItem(item, 0);
|
|
|
|
if (!PyString_Check(py_name)) {
|
|
PyErr_SetString(PyExc_TypeError, "header name should be string");
|
|
return NULL;
|
|
}
|
|
|
|
py_value = PyTuple_GetItem(item, 1);
|
|
if (!PyString_Check(py_value)) {
|
|
PyErr_SetString(PyExc_TypeError, "header value should be string");
|
|
return NULL;
|
|
}
|
|
|
|
hdr->name = talloc_strdup(hdr, PyString_AsString(py_name));
|
|
hdr->value = talloc_strdup(hdr, PyString_AsString(py_value));
|
|
DLIST_ADD(headers, hdr);
|
|
}
|
|
|
|
websrv_output_headers(web, status, headers);
|
|
|
|
return Py_None;
|
|
}
|
|
|
|
static PyMethodDef web_request_methods[] = {
|
|
{ "start_response", (PyCFunction)start_response, METH_VARARGS|METH_KEYWORDS, NULL },
|
|
{ NULL }
|
|
};
|
|
|
|
|
|
PyTypeObject web_request_Type = {
|
|
PyObject_HEAD_INIT(NULL) 0,
|
|
.tp_name = "wsgi.Request",
|
|
.tp_methods = web_request_methods,
|
|
.tp_basicsize = sizeof(web_request_Object),
|
|
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
|
|
};
|
|
|
|
typedef struct {
|
|
PyObject_HEAD
|
|
} error_Stream_Object;
|
|
|
|
static PyObject *py_error_flush(PyObject *self, PyObject *args, PyObject *kwargs)
|
|
{
|
|
/* Nothing to do here */
|
|
return Py_None;
|
|
}
|
|
|
|
static PyObject *py_error_write(PyObject *self, PyObject *args, PyObject *kwargs)
|
|
{
|
|
const char *kwnames[] = { "str", NULL };
|
|
char *str = NULL;
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s:write", discard_const_p(char *, kwnames), &str)) {
|
|
return NULL;
|
|
}
|
|
|
|
DEBUG(0, ("WSGI App: %s", str));
|
|
|
|
return Py_None;
|
|
}
|
|
|
|
static PyObject *py_error_writelines(PyObject *self, PyObject *args, PyObject *kwargs)
|
|
{
|
|
const char *kwnames[] = { "seq", NULL };
|
|
PyObject *seq = NULL, *item;
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O:writelines", discard_const_p(char *, kwnames), &seq)) {
|
|
return NULL;
|
|
}
|
|
|
|
while ((item = PyIter_Next(seq))) {
|
|
char *str = PyString_AsString(item);
|
|
|
|
DEBUG(0, ("WSGI App: %s", str));
|
|
}
|
|
|
|
return Py_None;
|
|
}
|
|
|
|
static PyMethodDef error_Stream_methods[] = {
|
|
{ "flush", (PyCFunction)py_error_flush, METH_VARARGS|METH_KEYWORDS, NULL },
|
|
{ "write", (PyCFunction)py_error_write, METH_VARARGS|METH_KEYWORDS, NULL },
|
|
{ "writelines", (PyCFunction)py_error_writelines, METH_VARARGS|METH_KEYWORDS, NULL },
|
|
{ NULL, NULL, 0, NULL }
|
|
};
|
|
|
|
PyTypeObject error_Stream_Type = {
|
|
PyObject_HEAD_INIT(NULL) 0,
|
|
.tp_name = "wsgi.ErrorStream",
|
|
.tp_basicsize = sizeof(error_Stream_Object),
|
|
.tp_methods = error_Stream_methods,
|
|
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
|
|
};
|
|
|
|
typedef struct {
|
|
PyObject_HEAD
|
|
} input_Stream_Object;
|
|
|
|
static PyObject *py_input_read(PyObject *self, PyObject *args, PyObject *kwargs)
|
|
{
|
|
/* FIXME */
|
|
return NULL;
|
|
}
|
|
|
|
static PyObject *py_input_readline(PyObject *self, PyObject *args, PyObject *kwargs)
|
|
{
|
|
/* FIXME */
|
|
return NULL;
|
|
}
|
|
|
|
static PyObject *py_input_readlines(PyObject *self, PyObject *args, PyObject *kwargs)
|
|
{
|
|
/* FIXME */
|
|
return NULL;
|
|
}
|
|
|
|
static PyObject *py_input___iter__(PyObject *self, PyObject *args, PyObject *kwargs)
|
|
{
|
|
/* FIXME */
|
|
return NULL;
|
|
}
|
|
|
|
static PyMethodDef input_Stream_methods[] = {
|
|
{ "read", (PyCFunction)py_input_read, METH_VARARGS|METH_KEYWORDS, NULL },
|
|
{ "readline", (PyCFunction)py_input_readline, METH_VARARGS|METH_KEYWORDS, NULL },
|
|
{ "readlines", (PyCFunction)py_input_readlines, METH_VARARGS|METH_KEYWORDS, NULL },
|
|
{ "__iter__", (PyCFunction)py_input___iter__, METH_VARARGS|METH_KEYWORDS, NULL },
|
|
{ NULL, NULL, 0, NULL }
|
|
};
|
|
|
|
PyTypeObject input_Stream_Type = {
|
|
PyObject_HEAD_INIT(NULL) 0,
|
|
.tp_name = "wsgi.InputStream",
|
|
.tp_basicsize = sizeof(input_Stream_Object),
|
|
.tp_methods = input_Stream_methods,
|
|
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
|
|
};
|
|
|
|
static PyObject *Py_InputHttpStream(void *foo)
|
|
{
|
|
input_Stream_Object *ret = PyObject_New(input_Stream_Object, &input_Stream_Type);
|
|
return (PyObject *)ret;
|
|
}
|
|
|
|
static PyObject *Py_ErrorHttpStream(void)
|
|
{
|
|
error_Stream_Object *ret = PyObject_New(error_Stream_Object, &error_Stream_Type);
|
|
return (PyObject *)ret;
|
|
}
|
|
|
|
static PyObject *create_environ(bool tls, int content_length, const char *content_type, struct http_header *headers, const char *request_method)
|
|
{
|
|
PyObject *env;
|
|
PyObject *inputstream, *errorstream;
|
|
PyObject *py_scheme;
|
|
struct http_header *hdr;
|
|
|
|
env = PyDict_New();
|
|
if (env == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
inputstream = Py_InputHttpStream(NULL);
|
|
if (inputstream == NULL) {
|
|
Py_DECREF(env);
|
|
return NULL;
|
|
}
|
|
|
|
errorstream = Py_ErrorHttpStream();
|
|
if (errorstream == NULL) {
|
|
Py_DECREF(env);
|
|
Py_DECREF(inputstream);
|
|
return NULL;
|
|
}
|
|
|
|
PyDict_SetItemString(env, "wsgi.input", inputstream);
|
|
PyDict_SetItemString(env, "wsgi.errors", errorstream);
|
|
PyDict_SetItemString(env, "wsgi.version", Py_BuildValue("(i,i)", 1, 0));
|
|
PyDict_SetItemString(env, "wsgi.multithread", Py_False);
|
|
PyDict_SetItemString(env, "wsgi.multiprocess", Py_True);
|
|
PyDict_SetItemString(env, "wsgi.run_once", Py_False);
|
|
PyDict_SetItemString(env, "SERVER_PROTOCOL", PyString_FromString("HTTP/1.0"));
|
|
if (content_type != NULL) {
|
|
PyDict_SetItemString(env, "CONTENT_TYPE", PyString_FromString(content_type));
|
|
}
|
|
if (content_length > 0) {
|
|
PyDict_SetItemString(env, "CONTENT_LENGTH", PyLong_FromLong(content_length));
|
|
}
|
|
PyDict_SetItemString(env, "REQUEST_METHOD", PyString_FromString(request_method));
|
|
|
|
/* FIXME: SCRIPT_NAME */
|
|
/* FIXME: PATH_INFO */
|
|
/* FIXME: QUERY_STRING */
|
|
/* FIXME: SERVER_NAME, SERVER_PORT */
|
|
|
|
for (hdr = headers; hdr; hdr = hdr->next) {
|
|
char *name;
|
|
asprintf(&name, "HTTP_%s", hdr->name);
|
|
PyDict_SetItemString(env, name, PyString_FromString(hdr->value));
|
|
free(name);
|
|
}
|
|
|
|
if (tls) {
|
|
py_scheme = PyString_FromString("https");
|
|
} else {
|
|
py_scheme = PyString_FromString("http");
|
|
}
|
|
PyDict_SetItemString(env, "wsgi.url_scheme", py_scheme);
|
|
|
|
return env;
|
|
}
|
|
|
|
static void wsgi_process_http_input(struct web_server_data *wdata,
|
|
struct websrv_context *web)
|
|
{
|
|
PyObject *py_environ, *result, *item, *iter;
|
|
PyObject *request_handler = wdata->private;
|
|
|
|
web_request_Object *py_web = PyObject_New(web_request_Object, &web_request_Type);
|
|
py_web->web = web;
|
|
|
|
py_environ = create_environ(false /* FIXME: Figure out whether we're using tls */,
|
|
web->input.content_length,
|
|
web->input.content_type,
|
|
web->input.headers,
|
|
web->input.post_request?"POST":"GET");
|
|
if (py_environ == NULL) {
|
|
DEBUG(0, ("Unable to create WSGI environment object\n"));
|
|
return;
|
|
}
|
|
|
|
result = PyObject_CallMethod(request_handler, discard_const_p(char, "__call__"), discard_const_p(char, "OO"),
|
|
py_environ, PyObject_GetAttrString((PyObject *)py_web, "start_response"));
|
|
|
|
if (result == NULL) {
|
|
DEBUG(0, ("error while running WSGI code\n"));
|
|
return;
|
|
}
|
|
|
|
iter = PyObject_GetIter(result);
|
|
Py_DECREF(result);
|
|
|
|
/* Now, iter over all the data returned */
|
|
|
|
while ((item = PyIter_Next(iter))) {
|
|
websrv_output(web, PyString_AsString(item), PyString_Size(item));
|
|
Py_DECREF(item);
|
|
}
|
|
|
|
Py_DECREF(iter);
|
|
}
|
|
|
|
bool wsgi_initialize(struct web_server_data *wdata)
|
|
{
|
|
PyObject *py_swat;
|
|
|
|
Py_Initialize();
|
|
|
|
if (PyType_Ready(&web_request_Type) < 0)
|
|
return false;
|
|
|
|
if (PyType_Ready(&input_Stream_Type) < 0)
|
|
return false;
|
|
|
|
if (PyType_Ready(&error_Stream_Type) < 0)
|
|
return false;
|
|
|
|
wdata->http_process_input = wsgi_process_http_input;
|
|
py_swat = PyImport_Import(PyString_FromString("swat"));
|
|
if (py_swat == NULL) {
|
|
DEBUG(0, ("Unable to find SWAT\n"));
|
|
return false;
|
|
}
|
|
wdata->private = py_swat;
|
|
return true;
|
|
}
|