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dialer.go
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dialer.go
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package tcp
import (
"context"
"v2ray.com/core/app/log"
"v2ray.com/core/common"
v2net "v2ray.com/core/common/net"
"v2ray.com/core/transport/internet"
"v2ray.com/core/transport/internet/tls"
)
func getTCPSettingsFromContext(ctx context.Context) *Config {
rawTCPSettings := internet.TransportSettingsFromContext(ctx)
if rawTCPSettings == nil {
return nil
}
return rawTCPSettings.(*Config)
}
func Dial(ctx context.Context, dest v2net.Destination) (internet.Connection, error) {
log.Trace(newError("dailing TCP to ", dest))
src := internet.DialerSourceFromContext(ctx)
conn, err := internet.DialSystem(ctx, src, dest)
if err != nil {
return nil, err
}
if securitySettings := internet.SecuritySettingsFromContext(ctx); securitySettings != nil {
tlsConfig, ok := securitySettings.(*tls.Config)
if ok {
config := tlsConfig.GetTLSConfig()
if dest.Address.Family().IsDomain() {
config.ServerName = dest.Address.Domain()
}
conn = tls.Client(conn, config)
}
}
tcpSettings := getTCPSettingsFromContext(ctx)
if tcpSettings != nil && tcpSettings.HeaderSettings != nil {
headerConfig, err := tcpSettings.HeaderSettings.GetInstance()
if err != nil {
return nil, newError("failed to get header settings").Base(err).AtError()
}
auth, err := internet.CreateConnectionAuthenticator(headerConfig)
if err != nil {
return nil, newError("failed to create header authenticator").Base(err).AtError()
}
conn = auth.Client(conn)
}
return internet.Connection(conn), nil
}
func init() {
common.Must(internet.RegisterTransportDialer(internet.TransportProtocol_TCP, Dial))
}