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@felipecruz
Last active November 15, 2016 01:37
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#include "Python.h"
#include "lwan/lwan.h"
/*
Compile with:
gcc `python3-config --cflags` -I/usr/local/include/lwan /usr/local/lib/liblwan.a `python3-config --ldflags` server.c -lz -o pylw
Run with:
./pylw wsgi.py
wsgi.py
def app(environ):
print("App() {}".format(environ))
*/
PyObject *wsgi_handler = NULL;
static lwan_http_status_t
request_handler(lwan_request_t *request,
lwan_response_t *response)
{
const char *ip_address;
char ip_address_buf[INET6_ADDRSTRLEN];
PyObject *resp;
PyObject *environ = PyDict_New();
ip_address = lwan_request_get_remote_address(request, ip_address_buf);
if (UNLIKELY(!ip_address))
return HTTP_INTERNAL_ERROR;
PyGILState_STATE _st = PyGILState_Ensure();
if (wsgi_handler && PyCallable_Check(wsgi_handler)) {
Py_XINCREF(environ);
PyDict_SetItemString(environ, "ip", Py_BuildValue("s", ip_address_buf));
resp = PyObject_CallFunctionObjArgs(wsgi_handler, environ, NULL);
if (!resp) {
PyErr_Print();
}
Py_XDECREF(environ);
} else {
PyErr_Print();
}
printf("%s\n", ip_address_buf);
PyGILState_Release(_st);
return HTTP_OK;
}
int main(int argc, char **argv) {
int i;
lwan_t l;
lwan_config_t c;
PyObject *pName, *pModule;
Py_Initialize();
PyEval_InitThreads();
wchar_t *program = Py_DecodeLocale(argv[0], NULL);
pName = PyUnicode_DecodeFSDefault(argv[1]);
pModule = PyImport_Import(pName);
Py_DECREF(pName);
Py_XINCREF(pModule);
if (program == NULL) {
fprintf(stderr, "Fatal error: cannot decode argv[0]\n");
return -1;
}
Py_SetProgramName(program);
if (pModule) {
wsgi_handler = PyObject_GetAttrString(pModule, "app");
Py_XINCREF(wsgi_handler);
} else {
PyErr_Print();
return -1;
}
c = *lwan_get_default_config();
c.listener = strdup("*:8080");
const lwan_url_map_t default_map[] = {
{ .prefix = "/", .handler = request_handler},
};
lwan_init_with_config(&l, &c);
lwan_set_url_map(&l, default_map);
Py_BEGIN_ALLOW_THREADS
lwan_main_loop(&l);
lwan_shutdown(&l);
Py_END_ALLOW_THREADS
Py_XDECREF(wsgi_handler);
Py_XDECREF(pModule);
Py_Finalize();
PyMem_RawFree(program);
return 0;
}
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