257 lines
7.7 KiB
C++
257 lines
7.7 KiB
C++
/*************************************************************************/
|
|
/* emws_client.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2020 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/io/ip.h"
|
|
#include "core/project_settings.h"
|
|
#include "emscripten.h"
|
|
|
|
extern "C" {
|
|
EMSCRIPTEN_KEEPALIVE void _esws_on_connect(void *obj, char *proto) {
|
|
EMWSClient *client = static_cast<EMWSClient *>(obj);
|
|
client->_is_connecting = false;
|
|
client->_on_connect(String(proto));
|
|
}
|
|
|
|
EMSCRIPTEN_KEEPALIVE void _esws_on_message(void *obj, 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();
|
|
}
|
|
|
|
EMSCRIPTEN_KEEPALIVE void _esws_on_error(void *obj) {
|
|
EMWSClient *client = static_cast<EMWSClient *>(obj);
|
|
client->_is_connecting = false;
|
|
client->_on_error();
|
|
}
|
|
|
|
EMSCRIPTEN_KEEPALIVE void _esws_on_close(void *obj, int code, char *reason, int was_clean) {
|
|
EMWSClient *client = static_cast<EMWSClient *>(obj);
|
|
client->_on_close_request(code, String(reason));
|
|
client->_is_connecting = false;
|
|
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) {
|
|
|
|
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;
|
|
/* clang-format off */
|
|
int peer_sock = EM_ASM_INT({
|
|
var proto_str = UTF8ToString($2);
|
|
var socket = null;
|
|
try {
|
|
if (proto_str) {
|
|
socket = new WebSocket(UTF8ToString($1), proto_str.split(","));
|
|
} else {
|
|
socket = new WebSocket(UTF8ToString($1));
|
|
}
|
|
} catch (e) {
|
|
return -1;
|
|
}
|
|
var c_ptr = Module.IDHandler.get($0);
|
|
socket.binaryType = "arraybuffer";
|
|
|
|
// Connection opened
|
|
socket.addEventListener("open", function (event) {
|
|
if (!Module.IDHandler.has($0))
|
|
return; // Godot Object is gone!
|
|
ccall("_esws_on_connect",
|
|
"void",
|
|
["number", "string"],
|
|
[c_ptr, socket.protocol]
|
|
);
|
|
});
|
|
|
|
// Listen for messages
|
|
socket.addEventListener("message", function (event) {
|
|
if (!Module.IDHandler.has($0))
|
|
return; // Godot Object is gone!
|
|
var buffer;
|
|
var is_string = 0;
|
|
if (event.data instanceof ArrayBuffer) {
|
|
|
|
buffer = new Uint8Array(event.data);
|
|
|
|
} else if (event.data instanceof Blob) {
|
|
|
|
alert("Blob type not supported");
|
|
return;
|
|
|
|
} else if (typeof event.data === "string") {
|
|
|
|
is_string = 1;
|
|
var enc = new TextEncoder("utf-8");
|
|
buffer = new Uint8Array(enc.encode(event.data));
|
|
|
|
} else {
|
|
|
|
alert("Unknown message type");
|
|
return;
|
|
|
|
}
|
|
var len = buffer.length*buffer.BYTES_PER_ELEMENT;
|
|
var out = _malloc(len);
|
|
HEAPU8.set(buffer, out);
|
|
ccall("_esws_on_message",
|
|
"void",
|
|
["number", "number", "number", "number"],
|
|
[c_ptr, out, len, is_string]
|
|
);
|
|
_free(out);
|
|
});
|
|
|
|
socket.addEventListener("error", function (event) {
|
|
if (!Module.IDHandler.has($0))
|
|
return; // Godot Object is gone!
|
|
ccall("_esws_on_error",
|
|
"void",
|
|
["number"],
|
|
[c_ptr]
|
|
);
|
|
});
|
|
|
|
socket.addEventListener("close", function (event) {
|
|
if (!Module.IDHandler.has($0))
|
|
return; // Godot Object is gone!
|
|
var was_clean = 0;
|
|
if (event.wasClean)
|
|
was_clean = 1;
|
|
ccall("_esws_on_close",
|
|
"void",
|
|
["number", "number", "string", "number"],
|
|
[c_ptr, event.code, event.reason, was_clean]
|
|
);
|
|
});
|
|
|
|
return Module.IDHandler.add(socket);
|
|
}, _js_id, str.utf8().get_data(), proto_string.utf8().get_data());
|
|
/* clang-format on */
|
|
if (peer_sock == -1)
|
|
return FAILED;
|
|
|
|
static_cast<Ref<EMWSPeer> >(_peer)->set_sock(peer_sock, _in_buf_size, _in_pkt_size);
|
|
|
|
return OK;
|
|
};
|
|
|
|
void EMWSClient::poll() {
|
|
}
|
|
|
|
Ref<WebSocketPeer> EMWSClient::get_peer(int p_peer_id) const {
|
|
|
|
return _peer;
|
|
}
|
|
|
|
NetworkedMultiplayerPeer::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);
|
|
};
|
|
|
|
IP_Address EMWSClient::get_connected_host() const {
|
|
|
|
ERR_FAIL_V_MSG(IP_Address(), "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() {
|
|
_in_buf_size = nearest_shift((int)GLOBAL_GET(WSC_IN_BUF) - 1) + 10;
|
|
_in_pkt_size = nearest_shift((int)GLOBAL_GET(WSC_IN_PKT) - 1);
|
|
_is_connecting = false;
|
|
_peer = Ref<EMWSPeer>(memnew(EMWSPeer));
|
|
/* clang-format off */
|
|
_js_id = EM_ASM_INT({
|
|
return Module.IDHandler.add($0);
|
|
}, this);
|
|
/* clang-format on */
|
|
};
|
|
|
|
EMWSClient::~EMWSClient() {
|
|
|
|
disconnect_from_host();
|
|
_peer = Ref<EMWSPeer>();
|
|
/* clang-format off */
|
|
EM_ASM({
|
|
Module.IDHandler.remove($0);
|
|
}, _js_id);
|
|
/* clang-format on */
|
|
};
|
|
|
|
#endif // JAVASCRIPT_ENABLED
|