242 lines
7.7 KiB
C++
242 lines
7.7 KiB
C++
/*************************************************************************/
|
|
/* emws_peer.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
|
|
#ifdef WEB_ENABLED
|
|
|
|
#include "emws_peer.h"
|
|
|
|
#include "core/io/ip.h"
|
|
|
|
void EMWSPeer::_esws_on_connect(void *p_obj, char *p_proto) {
|
|
EMWSPeer *peer = static_cast<EMWSPeer *>(p_obj);
|
|
peer->ready_state = STATE_OPEN;
|
|
peer->selected_protocol.parse_utf8(p_proto);
|
|
}
|
|
|
|
void EMWSPeer::_esws_on_message(void *p_obj, const uint8_t *p_data, int p_data_size, int p_is_string) {
|
|
EMWSPeer *peer = static_cast<EMWSPeer *>(p_obj);
|
|
uint8_t is_string = p_is_string ? 1 : 0;
|
|
peer->in_buffer.write_packet(p_data, p_data_size, &is_string);
|
|
}
|
|
|
|
void EMWSPeer::_esws_on_error(void *p_obj) {
|
|
EMWSPeer *peer = static_cast<EMWSPeer *>(p_obj);
|
|
peer->ready_state = STATE_CLOSED;
|
|
}
|
|
|
|
void EMWSPeer::_esws_on_close(void *p_obj, int p_code, const char *p_reason, int p_was_clean) {
|
|
EMWSPeer *peer = static_cast<EMWSPeer *>(p_obj);
|
|
peer->close_code = p_code;
|
|
peer->close_reason.parse_utf8(p_reason);
|
|
peer->ready_state = STATE_CLOSED;
|
|
}
|
|
|
|
Error EMWSPeer::connect_to_url(const String &p_url, bool p_verify_tls, Ref<X509Certificate> p_tls_certificate) {
|
|
ERR_FAIL_COND_V(ready_state != STATE_CLOSED, ERR_ALREADY_IN_USE);
|
|
_clear();
|
|
|
|
String host;
|
|
String path;
|
|
String scheme;
|
|
int port = 0;
|
|
Error err = p_url.parse_url(scheme, host, port, path);
|
|
ERR_FAIL_COND_V_MSG(err != OK, err, "Invalid URL: " + p_url);
|
|
|
|
if (scheme.is_empty()) {
|
|
scheme = "ws://";
|
|
}
|
|
ERR_FAIL_COND_V_MSG(scheme != "ws://" && scheme != "wss://", ERR_INVALID_PARAMETER, vformat("Invalid protocol: \"%s\" (must be either \"ws://\" or \"wss://\").", scheme));
|
|
|
|
String proto_string;
|
|
for (int i = 0; i < supported_protocols.size(); i++) {
|
|
if (i != 0) {
|
|
proto_string += ",";
|
|
}
|
|
proto_string += supported_protocols[i];
|
|
}
|
|
|
|
if (handshake_headers.size()) {
|
|
WARN_PRINT_ONCE("Custom headers are not supported in Web platform.");
|
|
}
|
|
if (p_tls_certificate.is_valid()) {
|
|
WARN_PRINT_ONCE("Custom SSL certificates are not supported in Web platform.");
|
|
}
|
|
|
|
requested_url = scheme + host;
|
|
|
|
if (port && ((scheme == "ws://" && port != 80) || (scheme == "wss://" && port != 443))) {
|
|
requested_url += ":" + String::num(port);
|
|
}
|
|
|
|
if (!path.is_empty()) {
|
|
requested_url += path;
|
|
}
|
|
|
|
peer_sock = godot_js_websocket_create(this, requested_url.utf8().get_data(), proto_string.utf8().get_data(), &_esws_on_connect, &_esws_on_message, &_esws_on_error, &_esws_on_close);
|
|
if (peer_sock == -1) {
|
|
return FAILED;
|
|
}
|
|
in_buffer.resize(nearest_shift(inbound_buffer_size), max_queued_packets);
|
|
packet_buffer.resize(inbound_buffer_size);
|
|
ready_state = STATE_CONNECTING;
|
|
return OK;
|
|
}
|
|
|
|
Error EMWSPeer::accept_stream(Ref<StreamPeer> p_stream) {
|
|
WARN_PRINT_ONCE("Acting as WebSocket server is not supported in Web platforms.");
|
|
return ERR_UNAVAILABLE;
|
|
}
|
|
|
|
Error EMWSPeer::_send(const uint8_t *p_buffer, int p_buffer_size, bool p_binary) {
|
|
ERR_FAIL_COND_V(outbound_buffer_size > 0 && (get_current_outbound_buffered_amount() + p_buffer_size >= outbound_buffer_size), ERR_OUT_OF_MEMORY);
|
|
|
|
if (godot_js_websocket_send(peer_sock, p_buffer, p_buffer_size, p_binary ? 1 : 0) != 0) {
|
|
return FAILED;
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
Error EMWSPeer::send(const uint8_t *p_buffer, int p_buffer_size, WriteMode p_mode) {
|
|
return _send(p_buffer, p_buffer_size, p_mode == WRITE_MODE_BINARY);
|
|
}
|
|
|
|
Error EMWSPeer::put_packet(const uint8_t *p_buffer, int p_buffer_size) {
|
|
return _send(p_buffer, p_buffer_size, true);
|
|
}
|
|
|
|
Error EMWSPeer::get_packet(const uint8_t **r_buffer, int &r_buffer_size) {
|
|
if (in_buffer.packets_left() == 0) {
|
|
return ERR_UNAVAILABLE;
|
|
}
|
|
|
|
int read = 0;
|
|
Error err = in_buffer.read_packet(packet_buffer.ptrw(), packet_buffer.size(), &was_string, read);
|
|
ERR_FAIL_COND_V(err != OK, err);
|
|
|
|
*r_buffer = packet_buffer.ptr();
|
|
r_buffer_size = read;
|
|
|
|
return OK;
|
|
}
|
|
|
|
int EMWSPeer::get_available_packet_count() const {
|
|
return in_buffer.packets_left();
|
|
}
|
|
|
|
int EMWSPeer::get_current_outbound_buffered_amount() const {
|
|
if (peer_sock != -1) {
|
|
return godot_js_websocket_buffered_amount(peer_sock);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
bool EMWSPeer::was_string_packet() const {
|
|
return was_string;
|
|
}
|
|
|
|
void EMWSPeer::_clear() {
|
|
if (peer_sock != -1) {
|
|
godot_js_websocket_destroy(peer_sock);
|
|
peer_sock = -1;
|
|
}
|
|
ready_state = STATE_CLOSED;
|
|
was_string = 0;
|
|
close_code = -1;
|
|
close_reason.clear();
|
|
selected_protocol.clear();
|
|
requested_url.clear();
|
|
in_buffer.clear();
|
|
packet_buffer.clear();
|
|
}
|
|
|
|
void EMWSPeer::close(int p_code, String p_reason) {
|
|
if (p_code < 0) {
|
|
if (peer_sock != -1) {
|
|
godot_js_websocket_destroy(peer_sock);
|
|
peer_sock = -1;
|
|
}
|
|
ready_state = STATE_CLOSED;
|
|
}
|
|
if (ready_state == STATE_CONNECTING || ready_state == STATE_OPEN) {
|
|
ready_state = STATE_CLOSING;
|
|
if (peer_sock != -1) {
|
|
godot_js_websocket_close(peer_sock, p_code, p_reason.utf8().get_data());
|
|
} else {
|
|
ready_state = STATE_CLOSED;
|
|
}
|
|
}
|
|
in_buffer.clear();
|
|
packet_buffer.clear();
|
|
}
|
|
|
|
void EMWSPeer::poll() {
|
|
// Automatically polled by the navigator.
|
|
}
|
|
|
|
WebSocketPeer::State EMWSPeer::get_ready_state() const {
|
|
return ready_state;
|
|
}
|
|
|
|
int EMWSPeer::get_close_code() const {
|
|
return close_code;
|
|
}
|
|
|
|
String EMWSPeer::get_close_reason() const {
|
|
return close_reason;
|
|
}
|
|
|
|
String EMWSPeer::get_selected_protocol() const {
|
|
return selected_protocol;
|
|
}
|
|
|
|
String EMWSPeer::get_requested_url() const {
|
|
return requested_url;
|
|
}
|
|
|
|
IPAddress EMWSPeer::get_connected_host() const {
|
|
ERR_FAIL_V_MSG(IPAddress(), "Not supported in Web export.");
|
|
}
|
|
|
|
uint16_t EMWSPeer::get_connected_port() const {
|
|
ERR_FAIL_V_MSG(0, "Not supported in Web export.");
|
|
}
|
|
|
|
void EMWSPeer::set_no_delay(bool p_enabled) {
|
|
ERR_FAIL_MSG("'set_no_delay' is not supported in Web export.");
|
|
}
|
|
|
|
EMWSPeer::EMWSPeer() {
|
|
}
|
|
|
|
EMWSPeer::~EMWSPeer() {
|
|
_clear();
|
|
}
|
|
|
|
#endif // WEB_ENABLED
|