s3/s4 build: Fix Py_RETURN_NONE to work with python versions < 2.4
[tprouty/samba.git] / source4 / web_server / wsgi.c
index 0709e0ba39d63731e9bfb9dfbbc580dbff80eccb..8ec30a476a514976a4ee37eaf8300ad999ad2482 100644 (file)
 
 #include "includes.h"
 #include "web_server/web_server.h"
-#include "lib/util/dlinklist.h"
-#include "lib/util/data_blob.h"
-#include <Python.h>
+#include "../lib/util/dlinklist.h"
+#include "../lib/util/data_blob.h"
+#include "lib/tls/tls.h"
+#include "../lib/util/python_util.h"
 
 typedef struct {
        PyObject_HEAD
@@ -89,7 +90,7 @@ static PyObject *start_response(PyObject *self, PyObject *args, PyObject *kwargs
 
        websrv_output_headers(web, status, headers);
 
-       return Py_None;
+       Py_RETURN_NONE;
 }
 
 static PyMethodDef web_request_methods[] = {
@@ -113,7 +114,7 @@ typedef struct {
 static PyObject *py_error_flush(PyObject *self, PyObject *args, PyObject *kwargs)
 {
        /* Nothing to do here */
-       return Py_None;
+       Py_RETURN_NONE;
 }
 
 static PyObject *py_error_write(PyObject *self, PyObject *args, PyObject *kwargs)
@@ -127,7 +128,7 @@ static PyObject *py_error_write(PyObject *self, PyObject *args, PyObject *kwargs
 
        DEBUG(0, ("WSGI App: %s", str));
 
-       return Py_None;
+       Py_RETURN_NONE;
 }
 
 static PyObject *py_error_writelines(PyObject *self, PyObject *args, PyObject *kwargs)
@@ -145,7 +146,7 @@ static PyObject *py_error_writelines(PyObject *self, PyObject *args, PyObject *k
                DEBUG(0, ("WSGI App: %s", str));
        }
 
-       return Py_None;
+       Py_RETURN_NONE;
 }
 
 static PyMethodDef error_Stream_methods[] = {
@@ -165,37 +166,67 @@ PyTypeObject error_Stream_Type = {
 
 typedef struct {
        PyObject_HEAD
+       struct websrv_context *web;
+       size_t offset;
 } input_Stream_Object;
 
-static PyObject *py_input_read(PyObject *self, PyObject *args, PyObject *kwargs)
+static PyObject *py_input_read(PyObject *_self, PyObject *args, PyObject *kwargs)
 {
-       /* FIXME */
-       return NULL;
+       const char *kwnames[] = { "size", NULL };
+       PyObject *ret;
+       input_Stream_Object *self = (input_Stream_Object *)_self;
+       int size = -1;
+
+       if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", discard_const_p(char *, kwnames), &size))
+               return NULL;
+       
+       /* Don't read beyond buffer boundaries */
+       if (size == -1)
+               size = self->web->input.partial.length-self->offset;
+       else
+               size = MIN(size, self->web->input.partial.length-self->offset);
+
+       ret = PyString_FromStringAndSize((char *)self->web->input.partial.data+self->offset, size);
+       self->offset += size;
+       
+       return ret;
 }
 
-static PyObject *py_input_readline(PyObject *self, PyObject *args, PyObject *kwargs)
+static PyObject *py_input_readline(PyObject *_self)
 {
        /* FIXME */
+       PyErr_SetString(PyExc_NotImplementedError, 
+                       "readline() not yet implemented");
        return NULL;
 }
 
-static PyObject *py_input_readlines(PyObject *self, PyObject *args, PyObject *kwargs)
+static PyObject *py_input_readlines(PyObject *_self, PyObject *args, PyObject *kwargs)
 {
+       const char *kwnames[] = { "hint", NULL };
+       int hint;
+
+       if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", discard_const_p(char *, kwnames), &hint))
+               return NULL;
+       
        /* FIXME */
+       PyErr_SetString(PyExc_NotImplementedError, 
+                       "readlines() not yet implemented");
        return NULL;
 }
 
-static PyObject *py_input___iter__(PyObject *self, PyObject *args, PyObject *kwargs)
+static PyObject *py_input___iter__(PyObject *_self)
 {
        /* FIXME */
+       PyErr_SetString(PyExc_NotImplementedError, 
+                       "__iter__() not yet implemented");
        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 },
+       { "readline", (PyCFunction)py_input_readline, METH_NOARGS, NULL },
        { "readlines", (PyCFunction)py_input_readlines, METH_VARARGS|METH_KEYWORDS, NULL },
-       { "__iter__", (PyCFunction)py_input___iter__, METH_VARARGS|METH_KEYWORDS, NULL },
+       { "__iter__", (PyCFunction)py_input___iter__, METH_NOARGS, NULL },
        { NULL, NULL, 0, NULL }
 };
 
@@ -207,9 +238,11 @@ PyTypeObject input_Stream_Type = {
        .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
 };
 
-static PyObject *Py_InputHttpStream(void *foo)
+static PyObject *Py_InputHttpStream(struct websrv_context *web)
 {
        input_Stream_Object *ret = PyObject_New(input_Stream_Object, &input_Stream_Type);
+       ret->web = web;
+       ret->offset = 0;
        return (PyObject *)ret;
 }
 
@@ -219,24 +252,19 @@ static PyObject *Py_ErrorHttpStream(void)
        return (PyObject *)ret;
 }
 
-static PyObject *create_environ(bool tls, int content_length, const char *content_type, struct http_header *headers, const char *request_method)
+static PyObject *create_environ(bool tls, int content_length, struct http_header *headers, const char *request_method, const char *servername, int serverport, PyObject *inputstream, const char *request_string)
 {
        PyObject *env;
-       PyObject *inputstream, *errorstream;
+       PyObject *errorstream;
        PyObject *py_scheme;
        struct http_header *hdr;
+       char *questionmark;
        
        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);
@@ -251,24 +279,30 @@ static PyObject *create_environ(bool tls, int content_length, const char *conten
        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 */
-
+       questionmark = strchr(request_string, '?');
+       if (questionmark == NULL) {
+               PyDict_SetItemString(env, "SCRIPT_NAME", PyString_FromString(request_string));
+       } else {
+               PyDict_SetItemString(env, "QUERY_STRING", PyString_FromString(questionmark+1));
+               PyDict_SetItemString(env, "SCRIPT_NAME", PyString_FromStringAndSize(request_string, questionmark-request_string));
+       }
+       
+       PyDict_SetItemString(env, "SERVER_NAME", PyString_FromString(servername));
+       PyDict_SetItemString(env, "SERVER_PORT", PyInt_FromLong(serverport));
        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 (!strcasecmp(hdr->name, "Content-Type")) {
+                       PyDict_SetItemString(env, "CONTENT_TYPE", PyString_FromString(hdr->value));
+               } else { 
+                       asprintf(&name, "HTTP_%s", hdr->name);
+                       PyDict_SetItemString(env, name, PyString_FromString(hdr->value));
+                       free(name);
+               }
        }
 
        if (tls) {
@@ -286,15 +320,21 @@ static void wsgi_process_http_input(struct web_server_data *wdata,
 {
        PyObject *py_environ, *result, *item, *iter;
        PyObject *request_handler = wdata->private;
+       struct socket_address *socket_address;
 
        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 */, 
+       socket_address = socket_get_my_addr(web->conn->socket, web);
+       py_environ = create_environ(tls_enabled(web->conn->socket),
                                    web->input.content_length, 
-                                   web->input.content_type, 
                                    web->input.headers, 
-                                   web->input.post_request?"POST":"GET");
+                                   web->input.post_request?"POST":"GET",
+                                   socket_address->addr,
+                                   socket_address->port, 
+                                   Py_InputHttpStream(web),
+                                   web->input.url
+                                   );
        if (py_environ == NULL) {
                DEBUG(0, ("Unable to create WSGI environment object\n"));
                return;
@@ -314,8 +354,7 @@ static void wsgi_process_http_input(struct web_server_data *wdata,
        /* 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));
+               websrv_output(web, PyString_AsString(item), PyString_Size(item));
                Py_DECREF(item);
        }