79 lines
1.9 KiB
Go
79 lines
1.9 KiB
Go
package config
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import (
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"encoding/json"
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"fmt"
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"net"
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C "github.com/sagernet/sing-box/constant"
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"github.com/sagernet/sing-box/option"
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)
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func patchOutbound(base option.Outbound, configOpt ConfigOptions) (*option.Outbound, string, error) {
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var serverDomain string
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var outbound option.Outbound
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formatErr := func(err error) error {
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return fmt.Errorf("error patching outbound[%s][%s]: %w", base.Tag, base.Type, err)
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}
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jsonData, err := base.MarshalJSON()
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if err != nil {
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return nil, "", formatErr(err)
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}
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var obj map[string]interface{}
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err = json.Unmarshal(jsonData, &obj)
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if err != nil {
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return nil, "", formatErr(err)
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}
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if server, ok := obj["server"].(string); ok {
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if server != "" && net.ParseIP(server) == nil {
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serverDomain = fmt.Sprintf("full:%s", server)
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}
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}
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if !(base.Type == C.TypeSelector || base.Type == C.TypeURLTest || base.Type == C.TypeBlock || base.Type == C.TypeDNS) {
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if configOpt.EnableFragment {
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tlsFragment := option.TLSFragmentOptions{
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Enabled: configOpt.TLSTricks.EnableFragment,
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Size: configOpt.TLSTricks.FragmentSize,
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Sleep: configOpt.TLSTricks.FragmentSleep,
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}
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obj["tls_fragment"] = tlsFragment
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} else {
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obj["tls_fragment"] = nil
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}
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if tls, ok := obj["tls"].(map[string]interface{}); ok {
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tlsTricks := option.TLSTricksOptions{
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MixedCaseSNI: configOpt.TLSTricks.EnableMixedSNICase,
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}
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if configOpt.TLSTricks.EnablePadding {
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tlsTricks.PaddingMode = "random"
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tlsTricks.PaddingSize = configOpt.TLSTricks.PaddingSize
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}
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if tlsTricks.MixedCaseSNI || tlsTricks.PaddingMode != "" {
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tls["tls_tricks"] = tlsTricks
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} else {
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tls["tls_tricks"] = nil
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}
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}
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}
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modifiedJson, err := json.Marshal(obj)
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if err != nil {
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return nil, "", formatErr(err)
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}
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err = outbound.UnmarshalJSON(modifiedJson)
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if err != nil {
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return nil, "", formatErr(err)
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}
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return &outbound, serverDomain, nil
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}
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