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63 lines
1.0 KiB
Go
63 lines
1.0 KiB
Go
package adapters
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import (
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"crypto/tls"
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"fmt"
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"net"
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"net/url"
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"sync"
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"time"
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C "github.com/Dreamacro/clash/constant"
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)
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const (
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tcpTimeout = 5 * time.Second
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)
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var (
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globalClientSessionCache tls.ClientSessionCache
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once sync.Once
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)
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func urlToMetadata(rawURL string) (addr C.Metadata, err error) {
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u, err := url.Parse(rawURL)
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if err != nil {
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return
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}
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port := u.Port()
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if port == "" {
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if u.Scheme == "https" {
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port = "443"
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} else if u.Scheme == "http" {
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port = "80"
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} else {
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err = fmt.Errorf("%s scheme not Support", rawURL)
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return
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}
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}
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addr = C.Metadata{
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AddrType: C.AtypDomainName,
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Host: u.Hostname(),
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IP: nil,
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Port: port,
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}
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return
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}
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func tcpKeepAlive(c net.Conn) {
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if tcp, ok := c.(*net.TCPConn); ok {
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tcp.SetKeepAlive(true)
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tcp.SetKeepAlivePeriod(30 * time.Second)
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}
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}
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func getClientSessionCache() tls.ClientSessionCache {
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once.Do(func() {
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globalClientSessionCache = tls.NewLRUClientSessionCache(128)
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})
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return globalClientSessionCache
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}
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