forked from Angey40/BaiduPCS-Go
-
Notifications
You must be signed in to change notification settings - Fork 4
/
dial.go
95 lines (79 loc) · 1.81 KB
/
dial.go
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
package requester
import (
"context"
"crypto/tls"
"net"
"strconv"
"time"
)
var (
dialer = &net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
DualStack: true,
}
)
func getServerName(address string) string {
host, _, err := net.SplitHostPort(address)
if err != nil {
return address
}
return host
}
func resolveTCP(ctx context.Context, address string) (tcpaddr *net.TCPAddr, err error) {
host, port, err := net.SplitHostPort(address)
if err != nil {
return
}
addrs, err := net.DefaultResolver.LookupIPAddr(ctx, host)
if err != nil {
return
}
p, err := strconv.Atoi(port)
if err != nil {
return
}
return &net.TCPAddr{
IP: addrs[0].IP,
Port: p,
Zone: addrs[0].Zone,
}, nil
}
func dialContext(ctx context.Context, network, address string) (conn net.Conn, err error) {
switch network {
case "tcp", "tcp4", "tcp6":
// 检测缓存
if TCPAddrCache.Existed(address) {
return net.DialTCP(network, nil, TCPAddrCache.Get(address))
}
var (
ta *net.TCPAddr
)
// Resolve TCP address
ta, err = resolveTCP(ctx, address)
if err != nil {
return nil, err
}
// 加入缓存
TCPAddrCache.Set(address, ta)
return net.DialTCP(network, nil, ta)
}
// 非 tcp 请求
conn, err = dialer.DialContext(ctx, network, address)
return
}
func dial(network, address string) (conn net.Conn, err error) {
return dialContext(context.Background(), network, address)
}
func (h *HTTPClient) dialTLSFunc() func(network, address string) (tlsConn net.Conn, err error) {
return func(network, address string) (tlsConn net.Conn, err error) {
conn, err := dialContext(context.Background(), network, address)
if err != nil {
return nil, err
}
return tls.Client(conn, &tls.Config{
ServerName: getServerName(address),
InsecureSkipVerify: !h.https,
}), nil
}
}