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/*************************************************************************/
/* emws_client.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 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 JAVASCRIPT_ENABLED
#include "emws_client.h"
#include "core/config/project_settings.h"
#include "core/io/ip.h"
#include "emscripten.h"
void EMWSClient::_esws_on_connect(void *obj, char *proto) {
EMWSClient *client = static_cast<EMWSClient *>(obj);
client->_is_connecting = false;
client->_on_connect(String(proto));
}
void EMWSClient::_esws_on_message(void *obj, const uint8_t *p_data, int p_data_size, int p_is_string) {
EMWSClient *client = static_cast<EMWSClient *>(obj);
Error err = static_cast<EMWSPeer *>(*client->get_peer(1))->read_msg(p_data, p_data_size, p_is_string == 1);
if (err == OK)
client->_on_peer_packet();
}
void EMWSClient::_esws_on_error(void *obj) {
EMWSClient *client = static_cast<EMWSClient *>(obj);
client->_is_connecting = false;
client->_on_error();
}
void EMWSClient::_esws_on_close(void *obj, int code, const char *reason, int was_clean) {
EMWSClient *client = static_cast<EMWSClient *>(obj);
client->_on_close_request(code, String(reason));
client->_is_connecting = false;
client->disconnect_from_host();
client->_on_disconnect(was_clean != 0);
}
Error EMWSClient::connect_to_host(String p_host, String p_path, uint16_t p_port, bool p_ssl, const Vector<String> p_protocols, const Vector<String> p_custom_headers) {
if (_js_id) {
godot_js_websocket_destroy(_js_id);
_js_id = 0;
}
String proto_string;
for (int i = 0; i < p_protocols.size(); i++) {
if (i != 0)
proto_string += ",";
proto_string += p_protocols[i];
}
String str = "ws://";
if (p_custom_headers.size()) {
WARN_PRINT_ONCE("Custom headers are not supported in in HTML5 platform.");
}
if (p_ssl) {
str = "wss://";
if (ssl_cert.is_valid()) {
WARN_PRINT_ONCE("Custom SSL certificate is not supported in HTML5 platform.");
}
}
str += p_host + ":" + itos(p_port) + p_path;
_is_connecting = true;
_js_id = godot_js_websocket_create(this, str.utf8().get_data(), proto_string.utf8().get_data(), &_esws_on_connect, &_esws_on_message, &_esws_on_error, &_esws_on_close);
if (!_js_id) {
return FAILED;
}
static_cast<Ref<EMWSPeer>>(_peer)->set_sock(_js_id, _in_buf_size, _in_pkt_size);
return OK;
}
void EMWSClient::poll() {
}
Ref<WebSocketPeer> EMWSClient::get_peer(int p_peer_id) const {
return _peer;
}
MultiplayerPeer::ConnectionStatus EMWSClient::get_connection_status() const {
if (_peer->is_connected_to_host()) {
if (_is_connecting)
return CONNECTION_CONNECTING;
return CONNECTION_CONNECTED;
}
return CONNECTION_DISCONNECTED;
}
void EMWSClient::disconnect_from_host(int p_code, String p_reason) {
_peer->close(p_code, p_reason);
}
IPAddress EMWSClient::get_connected_host() const {
ERR_FAIL_V_MSG(IPAddress(), "Not supported in HTML5 export.");
}
uint16_t EMWSClient::get_connected_port() const {
ERR_FAIL_V_MSG(0, "Not supported in HTML5 export.");
}
int EMWSClient::get_max_packet_size() const {
return (1 << _in_buf_size) - PROTO_SIZE;
}
Error EMWSClient::set_buffers(int p_in_buffer, int p_in_packets, int p_out_buffer, int p_out_packets) {
_in_buf_size = nearest_shift(p_in_buffer - 1) + 10;
_in_pkt_size = nearest_shift(p_in_packets - 1);
return OK;
}
EMWSClient::EMWSClient() {
_peer = Ref<EMWSPeer>(memnew(EMWSPeer));
}
EMWSClient::~EMWSClient() {
disconnect_from_host();
_peer = Ref<EMWSPeer>();
if (_js_id) {
godot_js_websocket_destroy(_js_id);
}
}
#endif // JAVASCRIPT_ENABLED
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