61 lines
1.4 KiB
Go
61 lines
1.4 KiB
Go
package relay
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import (
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"strings"
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"time"
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"github.com/go-gost/gost/pkg/auth"
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md "github.com/go-gost/gost/pkg/metadata"
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)
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type metadata struct {
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authenticator auth.Authenticator
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readTimeout time.Duration
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retryCount int
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enableBind bool
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udpBufferSize int
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noDelay bool
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}
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func (h *relayHandler) parseMetadata(md md.Metadata) (err error) {
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const (
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users = "users"
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readTimeout = "readTimeout"
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retryCount = "retry"
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enableBind = "bind"
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udpBufferSize = "udpBufferSize"
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noDelay = "nodelay"
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)
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if v, _ := md.Get(users).([]interface{}); len(v) > 0 {
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authenticator := auth.NewLocalAuthenticator(nil)
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for _, auth := range v {
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if s, _ := auth.(string); s != "" {
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ss := strings.SplitN(s, ":", 2)
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if len(ss) == 1 {
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authenticator.Add(ss[0], "")
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} else {
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authenticator.Add(ss[0], ss[1])
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}
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}
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}
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h.md.authenticator = authenticator
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}
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h.md.readTimeout = md.GetDuration(readTimeout)
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h.md.retryCount = md.GetInt(retryCount)
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h.md.enableBind = md.GetBool(enableBind)
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h.md.noDelay = md.GetBool(noDelay)
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h.md.udpBufferSize = md.GetInt(udpBufferSize)
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if h.md.udpBufferSize > 0 {
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if h.md.udpBufferSize < 512 {
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h.md.udpBufferSize = 512 // min buffer size
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}
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if h.md.udpBufferSize > 65*1024 {
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h.md.udpBufferSize = 65 * 1024 // max buffer size
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}
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} else {
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h.md.udpBufferSize = 1024 // default buffer size
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}
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return
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}
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