1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
/*************************************************************************/
/* lws_client.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2017 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. */
/*************************************************************************/
#ifndef JAVASCRIPT_ENABLED
#include "lws_client.h"
#include "core/io/ip.h"
Error LWSClient::connect_to_host(String p_host, String p_path, uint16_t p_port, bool p_ssl, PoolVector<String> p_protocols) {
ERR_FAIL_COND_V(context != NULL, FAILED);
IP_Address addr;
if (!p_host.is_valid_ip_address()) {
addr = IP::get_singleton()->resolve_hostname(p_host);
} else {
addr = p_host;
}
ERR_FAIL_COND_V(!addr.is_valid(), ERR_INVALID_PARAMETER);
// prepare protocols
if (p_protocols.size() == 0) // default to binary protocol
p_protocols.append("binary");
_lws_make_protocols(this, &LWSClient::_lws_gd_callback, p_protocols, &_lws_ref);
// init lws client
struct lws_context_creation_info info;
struct lws_client_connect_info i;
memset(&i, 0, sizeof i);
memset(&info, 0, sizeof info);
info.port = CONTEXT_PORT_NO_LISTEN;
info.protocols = _lws_ref->lws_structs;
info.gid = -1;
info.uid = -1;
//info.ws_ping_pong_interval = 5;
info.user = _lws_ref;
context = lws_create_context(&info);
if (context == NULL) {
_lws_free_ref(_lws_ref);
_lws_ref = NULL;
ERR_EXPLAIN("Unable to create lws context");
ERR_FAIL_V(FAILED);
}
char abuf[1024];
char hbuf[1024];
char pbuf[2048];
String addr_str = (String)addr;
strncpy(abuf, addr_str.ascii().get_data(), 1024);
strncpy(hbuf, p_host.utf8().get_data(), 1024);
strncpy(pbuf, p_path.utf8().get_data(), 2048);
i.context = context;
i.protocol = _lws_ref->lws_names;
i.address = abuf;
i.host = hbuf;
i.path = pbuf;
i.port = p_port;
i.ssl_connection = p_ssl;
lws_client_connect_via_info(&i);
return OK;
};
void LWSClient::poll() {
_lws_poll();
}
int LWSClient::_handle_cb(struct lws *wsi, enum lws_callback_reasons reason, void *user, void *in, size_t len) {
Ref<LWSPeer> peer = static_cast<Ref<LWSPeer> >(_peer);
LWSPeer::PeerData *peer_data = (LWSPeer::PeerData *)user;
switch (reason) {
case LWS_CALLBACK_CLIENT_ESTABLISHED:
peer->set_wsi(wsi);
peer_data->peer_id = 0;
peer_data->in_size = 0;
peer_data->in_count = 0;
peer_data->out_count = 0;
peer_data->rbw.resize(16);
peer_data->rbr.resize(16);
peer_data->force_close = false;
_on_connect(lws_get_protocol(wsi)->name);
break;
case LWS_CALLBACK_CLIENT_CONNECTION_ERROR:
_on_error();
destroy_context();
return -1; // we should close the connection (would probably happen anyway)
case LWS_CALLBACK_CLOSED:
peer_data->in_count = 0;
peer_data->out_count = 0;
peer_data->rbw.resize(0);
peer_data->rbr.resize(0);
peer->close();
destroy_context();
_on_disconnect();
return 0; // we can end here
case LWS_CALLBACK_CLIENT_RECEIVE:
peer->read_wsi(in, len);
if (peer->get_available_packet_count() > 0)
_on_peer_packet();
break;
case LWS_CALLBACK_CLIENT_WRITEABLE:
if (peer_data->force_close)
return -1;
peer->write_wsi();
break;
default:
break;
}
return 0;
}
Ref<WebSocketPeer> LWSClient::get_peer(int p_peer_id) const {
return _peer;
}
NetworkedMultiplayerPeer::ConnectionStatus LWSClient::get_connection_status() const {
if (context == NULL)
return CONNECTION_DISCONNECTED;
if (_peer->is_connected_to_host())
return CONNECTION_CONNECTED;
return CONNECTION_CONNECTING;
}
void LWSClient::disconnect_from_host() {
if (context == NULL)
return;
_peer->close();
destroy_context();
};
IP_Address LWSClient::get_connected_host() const {
return IP_Address();
};
uint16_t LWSClient::get_connected_port() const {
return 1025;
};
LWSClient::LWSClient() {
context = NULL;
_lws_ref = NULL;
_peer = Ref<LWSPeer>(memnew(LWSPeer));
};
LWSClient::~LWSClient() {
invalidate_lws_ref(); // We do not want any more callback
disconnect_from_host();
_peer = Ref<LWSPeer>();
};
#endif // JAVASCRIPT_ENABLED
|