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Implement WebSocket close notify.

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This commit is contained in:
Fabio Alessandrelli 2018-09-23 21:14:20 +02:00
parent 399910ddd8
commit 5d91e87c64
18 changed files with 116 additions and 30 deletions
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5
modules/websocket/emws_client.cpp
View file

@ -55,6 +55,7 @@ EMSCRIPTEN_KEEPALIVE void _esws_on_error(void *obj) {
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();
}
@ -182,9 +183,9 @@ NetworkedMultiplayerPeer::ConnectionStatus EMWSClient::get_connection_status() c
return CONNECTION_DISCONNECTED;
};
void EMWSClient::disconnect_from_host() {
void EMWSClient::disconnect_from_host(int p_code, String p_reason) {
_peer->close();
_peer->close(p_code, p_reason);
};
IP_Address EMWSClient::get_connected_host() const {

2
modules/websocket/emws_client.h
View file

@ -48,7 +48,7 @@ public:
Error connect_to_host(String p_host, String p_path, uint16_t p_port, bool p_ssl, PoolVector<String> p_protocol = PoolVector<String>());
Ref<WebSocketPeer> get_peer(int p_peer_id) const;
void disconnect_from_host();
void disconnect_from_host(int p_code = 1000, String p_reason = "");
IP_Address get_connected_host() const;
uint16_t get_connected_port() const;
virtual ConnectionStatus get_connection_status() const;

8
modules/websocket/emws_peer.cpp
View file

@ -130,15 +130,17 @@ bool EMWSPeer::is_connected_to_host() const {
return peer_sock != -1;
};
void EMWSPeer::close() {
void EMWSPeer::close(int p_code, String p_reason) {
if (peer_sock != -1) {
/* clang-format off */
EM_ASM({
var sock = Module.IDHandler.get($0);
sock.close();
var code = $1;
var reason = UTF8ToString($2);
sock.close(code, reason);
Module.IDHandler.remove($0);
}, peer_sock);
}, peer_sock, p_code);
/* clang-format on */
}
peer_sock = -1;

2
modules/websocket/emws_peer.h
View file

@ -63,7 +63,7 @@ public:
virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size);
virtual int get_max_packet_size() const { return PACKET_BUFFER_SIZE; };
virtual void close();
virtual void close(int p_code = 1000, String p_reason = "");
virtual bool is_connected_to_host() const;
virtual IP_Address get_connected_host() const;
virtual uint16_t get_connected_port() const;

2
modules/websocket/emws_server.cpp
View file

@ -68,7 +68,7 @@ int EMWSServer::get_peer_port(int p_peer_id) const {
return 0;
}
void EMWSServer::disconnect_peer(int p_peer_id) {
void EMWSServer::disconnect_peer(int p_peer_id, int p_code, String p_reason) {
}
EMWSServer::EMWSServer() {

2
modules/websocket/emws_server.h
View file

@ -48,7 +48,7 @@ public:
Ref<WebSocketPeer> get_peer(int p_id) const;
IP_Address get_peer_address(int p_peer_id) const;
int get_peer_port(int p_peer_id) const;
void disconnect_peer(int p_peer_id);
void disconnect_peer(int p_peer_id, int p_code = 1000, String p_reason = "");
virtual void poll();
virtual PoolVector<String> get_protocols() const;

17
modules/websocket/lws_client.cpp
View file

@ -137,6 +137,13 @@ int LWSClient::_handle_cb(struct lws *wsi, enum lws_callback_reasons reason, voi
destroy_context();
return -1; // We should close the connection (would probably happen anyway)
case LWS_CALLBACK_WS_PEER_INITIATED_CLOSE: {
int code;
String reason = peer->get_close_reason(in, len, code);
_on_close_request(code, reason);
return 0;
}
case LWS_CALLBACK_CLIENT_CLOSED:
peer->close();
destroy_context();
@ -150,8 +157,10 @@ int LWSClient::_handle_cb(struct lws *wsi, enum lws_callback_reasons reason, voi
break;
case LWS_CALLBACK_CLIENT_WRITEABLE:
if (peer_data->force_close)
if (peer_data->force_close) {
peer->send_close_status(wsi);
return -1;
}
peer->write_wsi();
break;
@ -179,13 +188,12 @@ NetworkedMultiplayerPeer::ConnectionStatus LWSClient::get_connection_status() co
return CONNECTION_CONNECTING;
}
void LWSClient::disconnect_from_host() {
void LWSClient::disconnect_from_host(int p_code, String p_reason) {
if (context == NULL)
return;
_peer->close();
destroy_context();
_peer->close(p_code, p_reason);
};
IP_Address LWSClient::get_connected_host() const {
@ -208,6 +216,7 @@ LWSClient::~LWSClient() {
invalidate_lws_ref(); // We do not want any more callback
disconnect_from_host();
destroy_context();
_peer = Ref<LWSPeer>();
};

2
modules/websocket/lws_client.h
View file

@ -46,7 +46,7 @@ class LWSClient : public WebSocketClient {
public:
Error connect_to_host(String p_host, String p_path, uint16_t p_port, bool p_ssl, PoolVector<String> p_protocol = PoolVector<String>());
Ref<WebSocketPeer> get_peer(int p_peer_id) const;
void disconnect_from_host();
void disconnect_from_host(int p_code = 1000, String p_reason = "");
IP_Address get_connected_host() const;
uint16_t get_connected_port() const;
virtual ConnectionStatus get_connection_status() const;

41
modules/websocket/lws_peer.cpp
View file

@ -178,11 +178,48 @@ bool LWSPeer::is_connected_to_host() const {
return wsi != NULL;
};
void LWSPeer::close() {
String LWSPeer::get_close_reason(void *in, size_t len, int &r_code) {
String s;
r_code = 0;
if (len < 2) // From docs this should not happen
return s;
const uint8_t *b = (const uint8_t *)in;
r_code = b[0] << 8 | b[1];
if (len > 2) {
const char *utf8 = (const char *)&b[2];
s.parse_utf8(utf8, len - 2);
}
return s;
}
void LWSPeer::send_close_status(struct lws *p_wsi) {
if (close_code == -1)
return;
int len = close_reason.size();
ERR_FAIL_COND(len > 123); // Maximum allowed reason size in bytes
lws_close_status code = (lws_close_status)close_code;
unsigned char *reason = len > 0 ? (unsigned char *)close_reason.utf8().ptrw() : NULL;
lws_close_reason(p_wsi, code, reason, len);
close_code = -1;
close_reason = "";
}
void LWSPeer::close(int p_code, String p_reason) {
if (wsi != NULL) {
close_code = p_code;
close_reason = p_reason;
PeerData *data = ((PeerData *)lws_wsi_user(wsi));
data->force_close = true;
lws_callback_on_writable(wsi); // notify that we want to disconnect
lws_callback_on_writable(wsi); // Notify that we want to disconnect
} else {
close_code = -1;
close_reason = "";
}
wsi = NULL;
rbw.resize(0);

7
modules/websocket/lws_peer.h
View file

@ -53,6 +53,9 @@ private:
WriteMode write_mode;
bool _was_string;
int close_code;
String close_reason;
public:
struct PeerData {
uint32_t peer_id;
@ -71,7 +74,7 @@ public:
virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size);
virtual int get_max_packet_size() const { return PACKET_BUFFER_SIZE; };
virtual void close();
virtual void close(int p_code = 1000, String p_reason = "");
virtual bool is_connected_to_host() const;
virtual IP_Address get_connected_host() const;
virtual uint16_t get_connected_port() const;
@ -83,6 +86,8 @@ public:
void set_wsi(struct lws *wsi);
Error read_wsi(void *in, size_t len);
Error write_wsi();
void send_close_status(struct lws *wsi);
String get_close_reason(void *in, size_t len, int &r_code);
LWSPeer();
~LWSPeer();

30
modules/websocket/lws_server.cpp
View file

@ -90,11 +90,24 @@ int LWSServer::_handle_cb(struct lws *wsi, enum lws_callback_reasons reason, voi
peer_data->peer_id = id;
peer_data->force_close = false;
_on_connect(id, lws_get_protocol(wsi)->name);
break;
}
case LWS_CALLBACK_WS_PEER_INITIATED_CLOSE: {
if (peer_data == NULL)
return 0;
int32_t id = peer_data->peer_id;
if (_peer_map.has(id)) {
int code;
Ref<LWSPeer> peer = _peer_map[id];
String reason = peer->get_close_reason(in, len, code);
_on_close_request(id, code, reason);
}
return 0;
}
case LWS_CALLBACK_CLOSED: {
if (peer_data == NULL)
return 0;
@ -118,10 +131,15 @@ int LWSServer::_handle_cb(struct lws *wsi, enum lws_callback_reasons reason, voi
}
case LWS_CALLBACK_SERVER_WRITEABLE: {
if (peer_data->force_close)
return -1;
int id = peer_data->peer_id;
if (peer_data->force_close) {
if (_peer_map.has(id)) {
Ref<LWSPeer> peer = _peer_map[id];
peer->send_close_status(wsi);
}
return -1;
}
if (_peer_map.has(id))
static_cast<Ref<LWSPeer> >(_peer_map[id])->write_wsi();
break;
@ -164,10 +182,10 @@ int LWSServer::get_peer_port(int p_peer_id) const {
return _peer_map[p_peer_id]->get_connected_port();
}
void LWSServer::disconnect_peer(int p_peer_id) {
void LWSServer::disconnect_peer(int p_peer_id, int p_code, String p_reason) {
ERR_FAIL_COND(!has_peer(p_peer_id));
get_peer(p_peer_id)->close();
get_peer(p_peer_id)->close(p_code, p_reason);
}
LWSServer::LWSServer() {

2
modules/websocket/lws_server.h
View file

@ -54,7 +54,7 @@ public:
Ref<WebSocketPeer> get_peer(int p_id) const;
IP_Address get_peer_address(int p_peer_id) const;
int get_peer_port(int p_peer_id) const;
void disconnect_peer(int p_peer_id);
void disconnect_peer(int p_peer_id, int p_code = 1000, String p_reason = "");
virtual void poll() { _lws_poll(); }
LWSServer();

8
modules/websocket/websocket_client.cpp
View file

@ -107,6 +107,11 @@ void WebSocketClient::_on_connect(String p_protocol) {
}
}
void WebSocketClient::_on_close_request(int p_code, String p_reason) {
emit_signal("server_close_request", p_code, p_reason);
}
void WebSocketClient::_on_disconnect() {
if (_is_multiplayer) {
@ -127,7 +132,7 @@ void WebSocketClient::_on_error() {
void WebSocketClient::_bind_methods() {
ClassDB::bind_method(D_METHOD("connect_to_url", "url", "protocols", "gd_mp_api"), &WebSocketClient::connect_to_url, DEFVAL(PoolVector<String>()), DEFVAL(false));
ClassDB::bind_method(D_METHOD("disconnect_from_host"), &WebSocketClient::disconnect_from_host);
ClassDB::bind_method(D_METHOD("disconnect_from_host", "code", "reason"), &WebSocketClient::disconnect_from_host, DEFVAL(1000), DEFVAL(""));
ClassDB::bind_method(D_METHOD("set_verify_ssl_enabled", "enabled"), &WebSocketClient::set_verify_ssl_enabled);
ClassDB::bind_method(D_METHOD("is_verify_ssl_enabled"), &WebSocketClient::is_verify_ssl_enabled);
@ -135,6 +140,7 @@ void WebSocketClient::_bind_methods() {
ADD_SIGNAL(MethodInfo("data_received"));
ADD_SIGNAL(MethodInfo("connection_established", PropertyInfo(Variant::STRING, "protocol")));
ADD_SIGNAL(MethodInfo("server_close_request", PropertyInfo(Variant::INT, "code"), PropertyInfo(Variant::STRING, "reason")));
ADD_SIGNAL(MethodInfo("connection_closed"));
ADD_SIGNAL(MethodInfo("connection_error"));
}

3
modules/websocket/websocket_client.h
View file

@ -53,7 +53,7 @@ public:
virtual void poll() = 0;
virtual Error connect_to_host(String p_host, String p_path, uint16_t p_port, bool p_ssl, PoolVector<String> p_protocol = PoolVector<String>()) = 0;
virtual void disconnect_from_host() = 0;
virtual void disconnect_from_host(int p_code = 1000, String p_reason = "") = 0;
virtual IP_Address get_connected_host() const = 0;
virtual uint16_t get_connected_port() const = 0;
@ -62,6 +62,7 @@ public:
void _on_peer_packet();
void _on_connect(String p_protocol);
void _on_close_request(int p_code, String p_reason);
void _on_disconnect();
void _on_error();

2
modules/websocket/websocket_peer.cpp
View file

@ -42,7 +42,7 @@ void WebSocketPeer::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_write_mode", "mode"), &WebSocketPeer::set_write_mode);
ClassDB::bind_method(D_METHOD("is_connected_to_host"), &WebSocketPeer::is_connected_to_host);
ClassDB::bind_method(D_METHOD("was_string_packet"), &WebSocketPeer::was_string_packet);
ClassDB::bind_method(D_METHOD("close"), &WebSocketPeer::close);
ClassDB::bind_method(D_METHOD("close", "code", "reason"), &WebSocketPeer::close, DEFVAL(1000), DEFVAL(""));
ClassDB::bind_method(D_METHOD("get_connected_host"), &WebSocketPeer::get_connected_host);
ClassDB::bind_method(D_METHOD("get_connected_port"), &WebSocketPeer::get_connected_port);

2
modules/websocket/websocket_peer.h
View file

@ -58,7 +58,7 @@ public:
virtual WriteMode get_write_mode() const = 0;
virtual void set_write_mode(WriteMode p_mode) = 0;
virtual void close() = 0;
virtual void close(int p_code = 1000, String p_reason = "") = 0;
virtual bool is_connected_to_host() const = 0;
virtual IP_Address get_connected_host() const = 0;

8
modules/websocket/websocket_server.cpp
View file

@ -46,8 +46,9 @@ void WebSocketServer::_bind_methods() {
ClassDB::bind_method(D_METHOD("has_peer", "id"), &WebSocketServer::has_peer);
ClassDB::bind_method(D_METHOD("get_peer_address", "id"), &WebSocketServer::get_peer_address);
ClassDB::bind_method(D_METHOD("get_peer_port", "id"), &WebSocketServer::get_peer_port);
ClassDB::bind_method(D_METHOD("disconnect_peer", "id"), &WebSocketServer::disconnect_peer);
ClassDB::bind_method(D_METHOD("disconnect_peer", "id", "code", "reason"), &WebSocketServer::disconnect_peer, DEFVAL(1000), DEFVAL(""));
ADD_SIGNAL(MethodInfo("client_close_request", PropertyInfo(Variant::INT, "id"), PropertyInfo(Variant::INT, "code"), PropertyInfo(Variant::STRING, "reason")));
ADD_SIGNAL(MethodInfo("client_disconnected", PropertyInfo(Variant::INT, "id")));
ADD_SIGNAL(MethodInfo("client_connected", PropertyInfo(Variant::INT, "id"), PropertyInfo(Variant::STRING, "protocol")));
ADD_SIGNAL(MethodInfo("data_received", PropertyInfo(Variant::INT, "id")));
@ -95,3 +96,8 @@ void WebSocketServer::_on_disconnect(int32_t p_peer_id) {
emit_signal("client_disconnected", p_peer_id);
}
}
void WebSocketServer::_on_close_request(int32_t p_peer_id, int p_code, String p_reason) {
emit_signal("client_close_request", p_peer_id, p_code, p_reason);
}

3
modules/websocket/websocket_server.h
View file

@ -54,11 +54,12 @@ public:
virtual IP_Address get_peer_address(int p_peer_id) const = 0;
virtual int get_peer_port(int p_peer_id) const = 0;
virtual void disconnect_peer(int p_peer_id) = 0;
virtual void disconnect_peer(int p_peer_id, int p_code = 1000, String p_reason = "") = 0;
void _on_peer_packet(int32_t p_peer_id);
void _on_connect(int32_t p_peer_id, String p_protocol);
void _on_disconnect(int32_t p_peer_id);
void _on_close_request(int32_t p_peer_id, int p_code, String p_reason);
WebSocketServer();
~WebSocketServer();