int SCGIhandle::accept(void)
{
scgi_socket_t client_sock;
if (scgi_accept(server_sock, &client_sock, NULL) == SCGI_SUCCESS) {
if (scgi_parse(client_sock, &handle) == SCGI_SUCCESS) {
return 1;
}
closesocket(client_sock);
}
return 0;
}
static void callback(scgi_socket_t server_sock, scgi_socket_t *client_sock, struct sockaddr_in *addr)
{
scgi_handle_t handle = { 0 };
if (scgi_parse(*client_sock, &handle) == SCGI_SUCCESS) {
scgi_param_t *pp;
*client_sock = SCGI_SOCK_INVALID;
for(pp = handle.params; pp; pp = pp->next) {
printf("HEADER: [%s] VALUE: [%s]\n", pp->name, pp->value);
}
if (handle.body) {
printf("\n\nBODY:\n%s\n\n", handle.body);
}
scgi_disconnect(&handle);
}
}
int uwsgi_proto_scgi_parser(struct wsgi_request *wsgi_req) {
// first round ? (wsgi_req->proto_parser_buf is freed at the end of the request)
if (!wsgi_req->proto_parser_buf) {
wsgi_req->proto_parser_buf = uwsgi_malloc(uwsgi.buffer_size);
}
if (uwsgi.buffer_size - wsgi_req->proto_parser_pos == 0) {
uwsgi_log("invalid SCGI request size (max %u)...skip\n", uwsgi.buffer_size);
return -1;
}
char *ptr = wsgi_req->proto_parser_buf;
ssize_t len = read(wsgi_req->fd, ptr + wsgi_req->proto_parser_pos, uwsgi.buffer_size - wsgi_req->proto_parser_pos);
if (len > 0) {
wsgi_req->proto_parser_pos += len;
int ret = scgi_parse(wsgi_req);
if (ret > 0) {
wsgi_req->uh->modifier1 = uwsgi.scgi_modifier1;
wsgi_req->uh->modifier2 = uwsgi.scgi_modifier2;
return UWSGI_OK;
}
if (ret == 0) return UWSGI_AGAIN;
return -1;
}
if (len < 0) {
if (errno == EAGAIN || errno == EWOULDBLOCK || errno == EINPROGRESS) {
return UWSGI_AGAIN;
}
uwsgi_error("uwsgi_proto_scgi_parser()");
return -1;
}
// 0 len
if (wsgi_req->proto_parser_pos > 0) {
uwsgi_error("uwsgi_proto_scgi_parser()");
}
return -1;
}
/** Reads the response from worker, deserialize it, render it to the Request. */
static void wr_resp_len_read_cb(struct ev_loop *loop, struct ev_io *w, int revents) {
LOG_FUNCTION
wr_req_t* req = (wr_req_t*) w->data;
wr_wkr_t *worker = req->wkr;
ssize_t read;
LOG_DEBUG(DEBUG,"Request %d",req->id);
if(!(revents & EV_READ))
return;
read = recv(w->fd,
req->resp_buf + req->bytes_received,
WR_RESP_BUF_SIZE - req->bytes_received,
0);
if(read <= 0) {
ev_io_stop(loop,w);
LOG_ERROR(WARN,"Error reading response:%s",strerror(errno));
worker->state += (WR_WKR_ERROR + WR_WKR_HANG);
wr_ctl_free(worker->ctl);
return;
}
req->bytes_received =+ read;
//worker responding
LOG_DEBUG(DEBUG,"Idle watcher reset for worker %d", worker->id);
LOG_DEBUG(DEBUG,"bytes read = %d", req->bytes_received);
scgi_t* scgi = scgi_parse(req->resp_buf, req->bytes_received);
if(scgi) {
ev_io_stop(loop,w);
const char *value = scgi_header_value_get(scgi, SCGI_CONTENT_LENGTH);
// Set response length
if(value)
req->resp_buf_len = atoi(value);
else
req->resp_buf_len = 0;
// Set rsponse code
value = scgi_header_value_get(scgi, RESP_CODE);
if(value)
req->resp_code = atoi(value);
else
req->resp_code = 0;
// Set content length
value = scgi_header_value_get(scgi, RESP_CONTENT_LENGTH);
if(value)
req->resp_body_len = atoi(value);
else
req->resp_body_len = 0;
LOG_DEBUG(DEBUG,"resp_code = %d, content len = %d, resp len = %d",
req->resp_code,
req->resp_body_len,
req->resp_buf_len);
// Response length should be greater than 0
if(req->resp_buf_len == 0) {
//TODO: Render 500 Internal Error, close Request, allocate worker to next Request
LOG_ERROR(WARN,"Got response len 0");
ev_io_stop(loop,w);
worker->state += (WR_WKR_ERROR + WR_WKR_HANG);
wr_ctl_free(worker->ctl);
return;
}
if(!req->conn_err && req->app && req->app->svr->conf->server->flag & WR_SVR_ACCESS_LOG) {
wr_access_log(req);
}
scgi_free(req->scgi);
req->scgi = NULL;
req->bytes_received = scgi->body_length;
LOG_DEBUG(DEBUG,"wr_resp_len_read_cb() bytes read = %d", req->bytes_received);
if(req->bytes_received > 0 && !req->conn_err) {
wr_conn_resp_body_add(req->conn, scgi->body, scgi->body_length);
}
scgi_free(scgi);
// Check for response length
if(req->resp_buf_len == req->bytes_received) {
LOG_DEBUG(DEBUG,"Idle watcher stopped for worker %d", worker->id);
// worker is done with current Request
worker->req = NULL;
req->using_wkr = FALSE;
worker->state &= (~224);
ev_timer_stop(worker->loop,&worker->t_wait);
// Close Request once complete response read
wr_wkr_release(req);
} else {
LOG_DEBUG(DEBUG,"wr_resp_len_read_cb() Request %d, read %d/%d",
req->id,
req->bytes_received,
req->resp_buf_len);
ev_io_init(w,wr_resp_read_cb, w->fd,EV_READ);
ev_io_start(loop,w);
wr_wait_watcher_start(worker);
}
}
}
