Exemple #1
0
/*
 * Performs the network I/O.
 */
static void exec_io(struct Connection *connection) {
  int rv;
  rv = nghttp2_session_recv(connection->session);
  if (rv != 0) {
    diec("nghttp2_session_recv", rv);
  }
  rv = nghttp2_session_send(connection->session);
  if (rv != 0) {
    diec("nghttp2_session_send", rv);
  }
}
Exemple #2
0
/*
 * Submits the request |req| to the connection |connection|.  This
 * function does not send packets; just append the request to the
 * internal queue in |connection->session|.
 */
static void submit_request(struct Connection *connection, struct Request *req)
{
  int pri = 0;
  int rv;
  const char *nv[17];
  /* We always use SPDY/3 style header even if the negotiated protocol
     version is SPDY/2. The library translates the header name as
     necessary. Make sure that the last item is NULL! */
  //nv[0] = ":method";     nv[1] = "GET";
  nv[0] = ":method";     nv[1] = "POST";
  nv[2] = ":path";       nv[3] = req->path;
  nv[4] = ":version";    nv[5] = "HTTP/1.1";
  nv[6] = ":scheme";     nv[7] = "https";
  nv[8] = ":host";       nv[9] = req->hostport;
  nv[10] = "accept";     nv[11] = "*/*";
  nv[12] = "user-agent"; nv[13] = "spdylay/"SPDYLAY_VERSION;
  nv[14] = "clientid";   nv[15] = "clientId-1234";
  nv[16] = NULL;
  spdylay_data_provider data_prd;
  data_prd.source.ptr = "client-1234";
  rv = spdylay_submit_request(connection->session, pri, nv, &data_prd, req);
  //rv = spdylay_submit_request(connection->session, pri, nv, NULL, req);
  if(rv != 0) {
    diec("spdylay_submit_request", rv);
  }
}
Exemple #3
0
/*
 * The implementation of spdylay_on_stream_close_callback type. We use
 * this function to know the response is fully received. Since we just
 * fetch 1 resource in this program, after reception of the response,
 * we submit GOAWAY and close the session.
 */
static void on_stream_close_callback(spdylay_session *session,
                                     int32_t stream_id,
                                     spdylay_status_code status_code,
                                     void *user_data)
{
  struct Request *req;
  req = spdylay_session_get_stream_user_data(session, stream_id);
  if(req) {
    int rv;
    rv = spdylay_submit_goaway(session, SPDYLAY_GOAWAY_OK);
    if(rv != 0) {
      diec("spdylay_submit_goaway", rv);
    }
  }
}
Exemple #4
0
/*
 * The implementation of nghttp2_on_stream_close_callback type. We use
 * this function to know the response is fully received. Since we just
 * fetch 1 resource in this program, after reception of the response,
 * we submit GOAWAY and close the session.
 */
static int on_stream_close_callback(nghttp2_session *session, int32_t stream_id,
                                    uint32_t error_code, void *user_data) {
  struct Request *req;
  (void)error_code;
  (void)user_data;

  req = nghttp2_session_get_stream_user_data(session, stream_id);
  if (req) {
    int rv;
    rv = nghttp2_session_terminate_session(session, NGHTTP2_NO_ERROR);

    if (rv != 0) {
      diec("nghttp2_session_terminate_session", rv);
    }
  }
  return 0;
}
Exemple #5
0
/*
 * Submits the request |req| to the connection |connection|.  This
 * function does not send packets; just append the request to the
 * internal queue in |connection->session|.
 */
static void submit_request(struct Connection *connection, struct Request *req) {
  int32_t stream_id;
  /* Make sure that the last item is NULL */
  const nghttp2_nv nva[] = {MAKE_NV(":method", "GET"),
                            MAKE_NV_CS(":path", req->path),
                            MAKE_NV(":scheme", "https"),
                            MAKE_NV_CS(":authority", req->hostport),
                            MAKE_NV("accept", "*/*"),
                            MAKE_NV("user-agent", "nghttp2/" NGHTTP2_VERSION)};

  stream_id = nghttp2_submit_request(connection->session, NULL, nva,
                                     sizeof(nva) / sizeof(nva[0]), NULL, req);

  if (stream_id < 0) {
    diec("nghttp2_submit_request", stream_id);
  }

  req->stream_id = stream_id;
  printf("[INFO] Stream ID = %d\n", stream_id);
}
Exemple #6
0
/*
 * Fetches the resource denoted by |uri|.
 */
static void fetch_uri(const struct URI *uri)
{
  spdylay_session_callbacks callbacks;
  int fd;
  SSL_CTX *ssl_ctx;
  SSL *ssl;
  struct Request req;
  struct Connection connection;
  int rv;
  nfds_t npollfds = 1;
  struct pollfd pollfds[1];
  uint16_t spdy_proto_version;

  request_init(&req, uri);

  setup_spdylay_callbacks(&callbacks);

  /* Establish connection and setup SSL */
  fd = connect_to(req.host, req.port);
  ssl_ctx = SSL_CTX_new(SSLv23_client_method());
  if(ssl_ctx == NULL) {
    dief("SSL_CTX_new", ERR_error_string(ERR_get_error(), NULL));
  }
  init_ssl_ctx(ssl_ctx, &spdy_proto_version);
  ssl = SSL_new(ssl_ctx);
  if(ssl == NULL) {
    dief("SSL_new", ERR_error_string(ERR_get_error(), NULL));
  }
  /* To simplify the program, we perform SSL/TLS handshake in blocking
     I/O. */
  ssl_handshake(ssl, fd);

  connection.ssl = ssl;
  connection.want_io = IO_NONE;

  /* Here make file descriptor non-block */
  make_non_block(fd);
  set_tcp_nodelay(fd);

  printf("[INFO] SPDY protocol version = %d\n", spdy_proto_version);
  rv = spdylay_session_client_new(&connection.session, spdy_proto_version,
                                  &callbacks, &connection);
  if(rv != 0) {
    diec("spdylay_session_client_new", rv);
  }

  /* Submit the HTTP request to the outbound queue. */
  submit_request(&connection, &req);

  pollfds[0].fd = fd;
  ctl_poll(pollfds, &connection);

  /* Event loop */
  while(spdylay_session_want_read(connection.session) ||
        spdylay_session_want_write(connection.session)) {
    int nfds = poll(pollfds, npollfds, -1);
    if(nfds == -1) {
      dief("poll", strerror(errno));
    }
    if(pollfds[0].revents & (POLLIN | POLLOUT)) {
      exec_io(&connection);
    }
    if((pollfds[0].revents & POLLHUP) || (pollfds[0].revents & POLLERR)) {
      die("Connection error");
    }
    ctl_poll(pollfds, &connection);
  }

  /* Resource cleanup */
  spdylay_session_del(connection.session);
  SSL_shutdown(ssl);
  SSL_free(ssl);
  SSL_CTX_free(ssl_ctx);
  shutdown(fd, SHUT_WR);
  close(fd);
  request_free(&req);
}
Exemple #7
0
/*
 * Fetches the resource denoted by |uri|.
 */
static void fetch_uri(const struct URI *uri)
{
  spdylay_session_callbacks callbacks;
  int fd;
  struct Request req;
  struct Connection connection;
  int rv;
  nfds_t npollfds = 1;
  struct pollfd pollfds[1];
  uint16_t spdy_proto_version = 3;

  request_init(&req, uri);

  setup_spdylay_callbacks(&callbacks);

  /* Establish connection and setup SSL */
  fd = connect_to(req.host, req.port);
  if (-1 == fd)
    abort ();

  connection.fd = fd;
  connection.want_io = IO_NONE;

  /* Here make file descriptor non-block */
  make_non_block(fd);
  set_tcp_nodelay(fd);

  printf("[INFO] SPDY protocol version = %d\n", spdy_proto_version);
  rv = spdylay_session_client_new(&connection.session, spdy_proto_version,
                                  &callbacks, &connection);
  if(rv != 0) {
    diec("spdylay_session_client_new", rv);
  }

  /* Submit the HTTP request to the outbound queue. */
  submit_request(&connection, &req);

  pollfds[0].fd = fd;
  ctl_poll(pollfds, &connection);

  /* Event loop */
  while(spdylay_session_want_read(connection.session) ||
        spdylay_session_want_write(connection.session)) {
    int nfds = poll(pollfds, npollfds, -1);
    if(nfds == -1) {
      dief("poll", strerror(errno));
    }
    if(pollfds[0].revents & (POLLIN | POLLOUT)) {
      exec_io(&connection);
    }
    if((pollfds[0].revents & POLLHUP) || (pollfds[0].revents & POLLERR)) {
      die("Connection error");
    }
    ctl_poll(pollfds, &connection);
  }

  /* Resource cleanup */
  spdylay_session_del(connection.session);
  shutdown(fd, SHUT_WR);
  MHD_socket_close_(fd);
  request_free(&req);
}