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feat: allow custom ECH domain

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Allowing customize the query domain for ECH, instead of leaking the ECH domain to DNS, can effectively prevent DNS leakage. This is highly necessary for most users who rely on default DNS configurations.
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Bblythe 2025-12-03 12:17:22 +08:00 committed by GitHub
parent d8dcaa7500
commit 3dd5068675
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1 changed files with 4 additions and 0 deletions
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4
adapter/outbound/ech.go
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@ -12,6 +12,7 @@ import (
type ECHOptions struct {
Enable bool `proxy:"enable,omitempty" obfs:"enable,omitempty"`
Config string `proxy:"config,omitempty" obfs:"config,omitempty"`
Domain string `proxy:"domain,omitempty" obfs:"domain,omitempty"`
}
func (o ECHOptions) Parse() (*ech.Config, error) {
@ -28,6 +29,9 @@ func (o ECHOptions) Parse() (*ech.Config, error) {
return list, nil
}
} else {
if o.Domain != "" {
serverName = o.Domain
}
echConfig.GetEncryptedClientHelloConfigList = func(ctx context.Context, serverName string) ([]byte, error) {
return resolver.ResolveECHWithResolver(ctx, serverName, resolver.ProxyServerHostResolver)
}