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
204
use std::time::SystemTime;
use bytes_kman::TBytes;
use crate::common::packets::{ConnectOn, Packets};
use super::{ClientStage, Connecting, RelayServer};
impl RelayServer {
pub(crate) fn connect(&mut self) {
let mut connect = Vec::new();
for client in self.clients.iter() {
if let ClientStage::Registered(rclient) = &client.stage {
if !rclient.to_connect.is_empty() && !rclient.ports.is_empty() {
for to_conn in rclient.to_connect.iter() {
if let Connecting::Finishing(session, time_offset) = to_conn {
connect.push((client.session, *session, *time_offset));
}
}
}
}
}
// in connect every connection will be double but when connecting will be consumed and
// seccond time nothing will happend!
'm: for conn in connect {
let mut index1 = 0;
let mut index2 = 0;
let mut connecting_to = None;
for (i, client) in self.clients.iter().enumerate() {
if client.session == conn.0 {
if let ClientStage::Registered(rclient) = &client.stage {
for conn_to in rclient.to_connect.iter() {
if conn_to.session() == conn.1 {
connecting_to = Some(client.session);
break;
}
}
}
index1 = i;
// cache the first client
// this is ok because the hole relay is single threded
break;
}
}
if let Some(connecting_to) = connecting_to {
for (i, client) in self.clients.iter().enumerate() {
if client.session == conn.1 {
let mut finded = false;
if let ClientStage::Registered(rclient) = &client.stage {
for conn_to in rclient.to_connect.iter() {
if conn_to.session() == connecting_to {
finded = true;
break;
}
}
}
if !finded {
continue 'm;
}
index2 = i;
// cache the the seccond client
// this is ok because the hole relay is single threded
break;
}
}
} else {
continue;
}
let port1;
let port2;
let adress1;
let adress2;
let private_adress1;
let private_adress2;
let addr1;
let addr2;
if let Some(client) = self.clients.get_mut(index1) {
if let ClientStage::Registered(rclient) = &mut client.stage {
port1 = rclient.ports.pop();
adress1 = client.from.clone();
addr1 = rclient.adress.clone();
private_adress1 = rclient.private_adress.clone();
} else {
continue;
}
} else {
continue;
}
if let Some(client) = self.clients.get_mut(index2) {
if let ClientStage::Registered(rclient) = &mut client.stage {
port2 = rclient.ports.pop();
adress2 = client.from.clone();
addr2 = rclient.adress.clone();
private_adress2 = rclient.private_adress.clone();
} else {
continue;
}
} else {
if let Some(port1) = port1 {
if let Some(client) = self.clients.get_mut(index1) {
if let ClientStage::Registered(rclient) = &mut client.stage {
rclient.ports.push(port1)
} else {
continue;
}
}
}
continue;
}
let Some(port1) = port1 else {
if let Some(port2) = port2{
if let Some(client) = self.clients.get_mut(index2) {
if let ClientStage::Registered(rclient) = &mut client.stage {
rclient.ports.push(port2);
}else{continue}
}
}
continue
};
let Some(port2) = port2 else {
if let Some(client) = self.clients.get_mut(index1){
if let ClientStage::Registered(rclient) = &mut client.stage {
rclient.ports.push(port1);
}else{
continue
}
}
continue
};
if let Some(client) = self.clients.get_mut(index1) {
if let ClientStage::Registered(rclient) = &mut client.stage {
rclient
.to_connect
.retain(|to_conn| to_conn.session() != conn.1);
}
}
if let Some(client) = self.clients.get_mut(index2) {
if let ClientStage::Registered(rclient) = &mut client.stage {
rclient
.to_connect
.retain(|to_conn| to_conn.session() != conn.0);
}
}
let adress1 = adress1.as_socket().unwrap().ip();
let adress2 = adress2.as_socket().unwrap().ip();
let has_the_same_ip = adress2 == adress1;
let (adress1, adress2) = if has_the_same_ip {
(private_adress1, private_adress2)
} else {
(adress1.to_string(), adress2.to_string())
};
let time = SystemTime::now()
.duration_since(std::time::UNIX_EPOCH)
.unwrap()
.as_nanos()
+ conn.2;
let pak = ConnectOn {
session: conn.0,
to: format!("{}:{}", adress2, port2),
port: port1,
adress: addr2,
time,
};
let mut bytes = Packets::ConnectOn(pak).to_bytes();
bytes.reverse();
if let Some(client) = self.clients.get_mut(index1) {
let _ = client.conn.send(&bytes);
}
let pak = ConnectOn {
session: conn.1,
to: format!("{}:{}", adress1, port1),
port: port2,
adress: addr1,
time,
};
let mut bytes = Packets::ConnectOn(pak).to_bytes();
bytes.reverse();
if let Some(client) = self.clients.get_mut(index2) {
let _ = client.conn.send(&bytes);
}
}
}
}