godot/modules/websocket/emws_peer.h
Fabio Alessandrelli adba870534 [NET] Refactor TLS configuration.
Use a TLSOptions configuration object which is created via static
functions.

- "TLSOptions.client": uses the standard CA and common name verification.
- "TLSOptions.client_unsafe": uses optional CA verification (i.e. if specified)
- "TLSOptions.server": is the standard server configuration (chain + key)

This will allow us to expand the TLS configuration options to include
e.g. mutual authentication without bloating the classes that uses
StreamPeerTLS and PacketPeerDTLS as underlying peers.
2023-01-28 11:08:02 +01:00

114 lines
5.2 KiB
C++

/**************************************************************************/
/* emws_peer.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
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/* the following conditions: */
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/**************************************************************************/
#ifndef EMWS_PEER_H
#define EMWS_PEER_H
#ifdef WEB_ENABLED
#include "core/error/error_list.h"
#include "core/io/packet_peer.h"
#include "core/templates/ring_buffer.h"
#include "emscripten.h"
#include "packet_buffer.h"
#include "websocket_peer.h"
extern "C" {
typedef void (*WSOnOpen)(void *p_ref, char *p_protocol);
typedef void (*WSOnMessage)(void *p_ref, const uint8_t *p_buf, int p_buf_len, int p_is_string);
typedef void (*WSOnClose)(void *p_ref, int p_code, const char *p_reason, int p_is_clean);
typedef void (*WSOnError)(void *p_ref);
extern int godot_js_websocket_create(void *p_ref, const char *p_url, const char *p_proto, WSOnOpen p_on_open, WSOnMessage p_on_message, WSOnError p_on_error, WSOnClose p_on_close);
extern int godot_js_websocket_send(int p_id, const uint8_t *p_buf, int p_buf_len, int p_raw);
extern int godot_js_websocket_buffered_amount(int p_id);
extern void godot_js_websocket_close(int p_id, int p_code, const char *p_reason);
extern void godot_js_websocket_destroy(int p_id);
}
class EMWSPeer : public WebSocketPeer {
private:
int peer_sock = -1;
State ready_state = STATE_CLOSED;
Vector<uint8_t> packet_buffer;
PacketBuffer<uint8_t> in_buffer;
uint8_t was_string = 0;
int close_code = -1;
String close_reason;
String selected_protocol;
String requested_url;
static WebSocketPeer *_create() { return memnew(EMWSPeer); }
static void _esws_on_connect(void *obj, char *proto);
static void _esws_on_message(void *obj, const uint8_t *p_data, int p_data_size, int p_is_string);
static void _esws_on_error(void *obj);
static void _esws_on_close(void *obj, int code, const char *reason, int was_clean);
void _clear();
Error _send(const uint8_t *p_buffer, int p_buffer_size, bool p_binary);
public:
static void initialize() { WebSocketPeer::_create = EMWSPeer::_create; }
// PacketPeer
virtual int get_available_packet_count() const override;
virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size) override;
virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size) override;
virtual int get_max_packet_size() const override { return packet_buffer.size(); };
// WebSocketPeer
virtual Error send(const uint8_t *p_buffer, int p_buffer_size, WriteMode p_mode) override;
virtual Error connect_to_url(const String &p_url, Ref<TLSOptions> p_tls_client_options) override;
virtual Error accept_stream(Ref<StreamPeer> p_stream) override;
virtual void close(int p_code = 1000, String p_reason = "") override;
virtual void poll() override;
virtual State get_ready_state() const override;
virtual int get_close_code() const override;
virtual String get_close_reason() const override;
virtual int get_current_outbound_buffered_amount() const override;
virtual IPAddress get_connected_host() const override;
virtual uint16_t get_connected_port() const override;
virtual String get_selected_protocol() const override;
virtual String get_requested_url() const override;
virtual bool was_string_packet() const override;
virtual void set_no_delay(bool p_enabled) override;
EMWSPeer();
~EMWSPeer();
};
#endif // WEB_ENABLED
#endif // EMWS_PEER_H