mirror of https://github.com/v2fly/v2ray-core.git
59 lines
1.7 KiB
Go
59 lines
1.7 KiB
Go
package internet
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import (
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"context"
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"net"
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"v2ray.com/core/common/errors"
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v2net "v2ray.com/core/common/net"
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)
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type Dialer func(ctx context.Context, dest v2net.Destination) (Connection, error)
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var (
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transportDialerCache = make(map[TransportProtocol]Dialer)
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)
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func RegisterTransportDialer(protocol TransportProtocol, dialer Dialer) error {
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if _, found := transportDialerCache[protocol]; found {
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return errors.New("Internet|Dialer: ", protocol, " dialer already registered.")
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}
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transportDialerCache[protocol] = dialer
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return nil
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}
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func Dial(ctx context.Context, dest v2net.Destination) (Connection, error) {
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if dest.Network == v2net.Network_TCP {
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streamSettings, _ := StreamSettingsFromContext(ctx)
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protocol := streamSettings.GetEffectiveProtocol()
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transportSettings, err := streamSettings.GetEffectiveTransportSettings()
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if err != nil {
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return nil, err
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}
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ctx = ContextWithTransportSettings(ctx, transportSettings)
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if streamSettings != nil && streamSettings.HasSecuritySettings() {
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securitySettings, err := streamSettings.GetEffectiveSecuritySettings()
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if err != nil {
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return nil, err
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}
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ctx = ContextWithSecuritySettings(ctx, securitySettings)
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}
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dialer := transportDialerCache[protocol]
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if dialer == nil {
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return nil, errors.New("Internet|Dialer: ", protocol, " dialer not registered.")
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}
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return dialer(ctx, dest)
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}
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udpDialer := transportDialerCache[TransportProtocol_UDP]
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if udpDialer == nil {
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return nil, errors.New("Internet|Dialer: UDP dialer not registered.")
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}
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return udpDialer(ctx, dest)
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}
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// DialSystem calls system dialer to create a network connection.
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func DialSystem(src v2net.Address, dest v2net.Destination) (net.Conn, error) {
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return effectiveSystemDialer.Dial(src, dest)
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}
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