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authorJelmer Vernooij <jelmer@samba.org>2008-09-21 18:45:09 +0200
committerJelmer Vernooij <jelmer@samba.org>2008-09-21 18:45:09 +0200
commit4141e70da97d924969b48fcd198e5996d615e75d (patch)
treeebb4ca741e3c48a37a5f26050f0e1e6a2d3d331a /source4/web_server
parent1271066234fed0e5f0e28a1e75420482abd20887 (diff)
downloadsamba-4141e70da97d924969b48fcd198e5996d615e75d.tar.gz
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Properly call WSGI request handler when requests come in.
Diffstat (limited to 'source4/web_server')
-rw-r--r--source4/web_server/swat/__init__.py3
-rw-r--r--source4/web_server/web_server.c42
-rw-r--r--source4/web_server/web_server.h13
-rw-r--r--source4/web_server/wsgi.c204
4 files changed, 198 insertions, 64 deletions
diff --git a/source4/web_server/swat/__init__.py b/source4/web_server/swat/__init__.py
index e0d85dbe2c..580097186c 100644
--- a/source4/web_server/swat/__init__.py
+++ b/source4/web_server/swat/__init__.py
@@ -1,4 +1,5 @@
#!/usr/bin/python
+# -*- coding: utf-8 -*-
# Unix SMB/CIFS implementation.
# Copyright © Jelmer Vernooij <jelmer@samba.org> 2008
@@ -19,7 +20,7 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
-def SWAT(environ, start_response):
+def __call__(environ, start_response):
status = '200 OK'
response_headers = [('Content-type','text/plain')]
start_response(status, response_headers)
diff --git a/source4/web_server/web_server.c b/source4/web_server/web_server.c
index 20924ff0dc..1a3c48a03d 100644
--- a/source4/web_server/web_server.c
+++ b/source4/web_server/web_server.c
@@ -41,9 +41,6 @@
*/
static int websrv_destructor(struct websrv_context *web)
{
- if (web->output.fd != -1) {
- close(web->output.fd);
- }
return 0;
}
@@ -84,6 +81,11 @@ void http_error(struct websrv_context *web, int code, const char *info)
web->output.output_pending = true;
}
+void websrv_output_headers(struct websrv_context *web, const char *status, struct http_header *headers)
+{
+ /* FIXME */
+}
+
/*
parse one line of header input
@@ -124,6 +126,7 @@ NTSTATUS http_parse_header(struct websrv_context *web, const char *line)
*/
static void websrv_recv(struct stream_connection *conn, uint16_t flags)
{
+ struct web_server_data *wdata;
struct websrv_context *web = talloc_get_type(conn->private,
struct websrv_context);
NTSTATUS status;
@@ -181,7 +184,9 @@ static void websrv_recv(struct stream_connection *conn, uint16_t flags)
destroy the stack variables being used by that
rendering process when we handle the timeout. */
if (!talloc_reference(web->task, web)) goto failed;
- web->http_process_input(web);
+ wdata = talloc_get_type(web->task->private, struct web_server_data);
+ if (wdata == NULL) goto failed;
+ wdata->http_process_input(wdata, web);
talloc_unlink(web->task, web);
}
return;
@@ -191,6 +196,7 @@ failed:
}
+
/*
called when a web connection becomes writable
*/
@@ -217,29 +223,7 @@ static void websrv_send(struct stream_connection *conn, uint16_t flags)
web->output.nsent += nsent;
- /* possibly read some more raw data from a file */
- if (web->output.content.length == web->output.nsent &&
- web->output.fd != -1) {
- uint8_t buf[2048];
- ssize_t nread;
-
- data_blob_free(&web->output.content);
- web->output.nsent = 0;
-
- nread = read(web->output.fd, buf, sizeof(buf));
- if (nread == -1 && errno == EINTR) {
- return;
- }
- if (nread <= 0) {
- close(web->output.fd);
- web->output.fd = -1;
- nread = 0;
- }
- web->output.content = data_blob_talloc(web, buf, nread);
- }
-
- if (web->output.content.length == web->output.nsent &&
- web->output.fd == -1) {
+ if (web->output.content.length == web->output.nsent) {
stream_terminate_connection(web->conn, "websrv_send: finished sending");
}
}
@@ -257,11 +241,9 @@ static void websrv_accept(struct stream_connection *conn)
web = talloc_zero(conn, struct websrv_context);
if (web == NULL) goto failed;
- web->http_process_input = wsgi_process_http_input;
web->task = task;
web->conn = conn;
conn->private = web;
- web->output.fd = -1;
talloc_set_destructor(web, websrv_destructor);
event_add_timed(conn->event.ctx, web,
@@ -348,6 +330,8 @@ static void websrv_task_init(struct task_server *task)
wdata->tls_params = tls_initialise(wdata, task->lp_ctx);
if (wdata->tls_params == NULL) goto failed;
+ if (!wsgi_initialize(wdata)) goto failed;
+
return;
failed:
diff --git a/source4/web_server/web_server.h b/source4/web_server/web_server.h
index 7375a2e9ca..0cc299f332 100644
--- a/source4/web_server/web_server.h
+++ b/source4/web_server/web_server.h
@@ -19,8 +19,12 @@
#include "smbd/process_model.h"
+struct websrv_context;
+
struct web_server_data {
struct tls_params *tls_params;
+ void (*http_process_input)(struct web_server_data *wdata,
+ struct websrv_context *web);
void *private;
};
@@ -36,8 +40,7 @@ struct http_header {
struct websrv_context {
struct task_server *task;
struct stream_connection *conn;
- void (*http_process_input)(struct websrv_context *web);
- struct {
+ struct websrv_request_input {
bool tls_detect;
bool tls_first_char;
uint8_t first_byte;
@@ -49,13 +52,11 @@ struct websrv_context {
struct http_header *headers;
const char *content_type;
} input;
- struct {
+ struct websrv_request_output {
bool output_pending;
DATA_BLOB content;
- int fd;
+ bool headers_sent;
unsigned nsent;
- int response_code;
- struct http_header *headers;
} output;
struct session_data *session;
};
diff --git a/source4/web_server/wsgi.c b/source4/web_server/wsgi.c
index 3391065dae..0709e0ba39 100644
--- a/source4/web_server/wsgi.c
+++ b/source4/web_server/wsgi.c
@@ -22,26 +22,90 @@
#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;
+ 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, "sOO:start_response", discard_const_p(char *, kwnames), &status, &response_header, &exc_info)) {
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "sO|O:start_response", discard_const_p(char *, kwnames), &status, &response_header, &exc_info)) {
return NULL;
}
- /* FIXME: response_header, exc_info */
+ /* FIXME: exc_info */
- /* FIXME: Wrap stdout */
- return NULL;
+ 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;
@@ -85,9 +149,9 @@ static PyObject *py_error_writelines(PyObject *self, PyObject *args, PyObject *k
}
static PyMethodDef error_Stream_methods[] = {
- { "flush", (PyCFunction)py_error_flush, METH_O|METH_VARARGS|METH_KEYWORDS, NULL },
- { "write", (PyCFunction)py_error_write, METH_O|METH_VARARGS|METH_KEYWORDS, NULL },
- { "writelines", (PyCFunction)py_error_writelines, METH_O|METH_VARARGS|METH_KEYWORDS, NULL },
+ { "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 }
};
@@ -105,29 +169,33 @@ typedef struct {
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_O|METH_VARARGS|METH_KEYWORDS, NULL },
- { "readline", (PyCFunction)py_input_readline, METH_O|METH_VARARGS|METH_KEYWORDS, NULL },
- { "readlines", (PyCFunction)py_input_readlines, METH_O|METH_VARARGS|METH_KEYWORDS, NULL },
- { "__iter__", (PyCFunction)py_input___iter__, METH_O|METH_VARARGS|METH_KEYWORDS, NULL },
+ { "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 }
};
@@ -151,20 +219,17 @@ static PyObject *Py_ErrorHttpStream(void)
return (PyObject *)ret;
}
-static PyObject *create_environ(void)
+static PyObject *create_environ(bool tls, int content_length, const char *content_type, struct http_header *headers, const char *request_method)
{
- PyObject *env, *osmodule, *osenviron;
+ PyObject *env;
PyObject *inputstream, *errorstream;
-
- osmodule = PyImport_ImportModule("os");
- if (osmodule == NULL)
+ PyObject *py_scheme;
+ struct http_header *hdr;
+
+ env = PyDict_New();
+ if (env == NULL) {
return NULL;
-
- osenviron = PyObject_CallMethod(osmodule, "environ", NULL);
-
- env = PyDict_Copy(osenviron);
-
- Py_DECREF(env);
+ }
inputstream = Py_InputHttpStream(NULL);
if (inputstream == NULL) {
@@ -185,16 +250,99 @@ static PyObject *create_environ(void)
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);
+ }
- /* FIXME:
- PyDict_SetItemString(env, "wsgi.url_scheme", "http");
- PyDict_SetItemString(env, "wsgi.url_scheme", "https");
- */
+ if (tls) {
+ py_scheme = PyString_FromString("https");
+ } else {
+ py_scheme = PyString_FromString("http");
+ }
+ PyDict_SetItemString(env, "wsgi.url_scheme", py_scheme);
return env;
}
-void wsgi_process_http_input(struct websrv_context *web)
+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))) {
+ data_blob_append(web, &web->output.content,
+ 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;
}