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refactor

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This commit is contained in:
Meo597 2025-06-08 19:30:25 +08:00
parent 82f8367c40
commit 39d54e1d67
1 changed files with 12 additions and 23 deletions
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35
tls.go
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@ -43,7 +43,6 @@ import (
"errors"
"fmt"
"io"
"math"
"net"
"os"
"runtime"
@ -120,18 +119,20 @@ func (c *RatelimitedConn) Read(b []byte) (int, error) {
return n, err
}
func NewBucketWithRate(bytesPerSec uint64, burstBytesPerSec uint64) *ratelimit.Bucket {
func NewRatelimitedConn(con net.Conn, config *Config) *RatelimitedConn {
bytesPerSec := config.LimitFallbackUpload.BytesPerSec
burstBytesPerSec := config.LimitFallbackUpload.BurstBytesPerSec
afterBytes := config.LimitFallbackUpload.AfterBytes
if burstBytesPerSec < bytesPerSec {
burstBytesPerSec = bytesPerSec
}
return ratelimit.NewBucketWithRate(float64(bytesPerSec), ToInt64(burstBytesPerSec))
}
func ToInt64(u uint64) int64 {
if u > math.MaxInt64 {
return math.MaxInt64
return &RatelimitedConn{
Conn: con,
Bucket: ratelimit.NewBucketWithRate(float64(bytesPerSec), int64(burstBytesPerSec)),
LimitAfter: int64(afterBytes) - int64(burstBytesPerSec),
}
return int64(u)
}
var (
@ -266,11 +267,7 @@ func Server(ctx context.Context, conn net.Conn, config *Config) (*Conn, error) {
io.Copy(target, underlying)
} else {
// Limit upload speed for fallback connection
io.Copy(target, &RatelimitedConn{
Conn: underlying,
Bucket: NewBucketWithRate(config.LimitFallbackUpload.BytesPerSec, config.LimitFallbackUpload.BurstBytesPerSec),
LimitAfter: ToInt64(config.LimitFallbackUpload.AfterBytes) - ToInt64(config.LimitFallbackUpload.BurstBytesPerSec),
})
io.Copy(target, NewRatelimitedConn(underlying, config))
}
}
waitGroup.Done()
@ -406,11 +403,7 @@ func Server(ctx context.Context, conn net.Conn, config *Config) (*Conn, error) {
io.Copy(target, underlying)
} else {
// Limit upload speed for fallback connection (handshake ok but hello failed)
io.Copy(target, &RatelimitedConn{
Conn: underlying,
Bucket: NewBucketWithRate(config.LimitFallbackUpload.BytesPerSec, config.LimitFallbackUpload.BurstBytesPerSec),
LimitAfter: ToInt64(config.LimitFallbackUpload.AfterBytes) - ToInt64(config.LimitFallbackUpload.BurstBytesPerSec),
})
io.Copy(target, NewRatelimitedConn(underlying, config))
}
waitGroup.Done()
}()
@ -420,11 +413,7 @@ func Server(ctx context.Context, conn net.Conn, config *Config) (*Conn, error) {
io.Copy(underlying, target)
} else {
// Limit download speed for fallback connection
io.Copy(underlying, &RatelimitedConn{
Conn: target,
Bucket: NewBucketWithRate(config.LimitFallbackDownload.BytesPerSec, config.LimitFallbackDownload.BurstBytesPerSec),
LimitAfter: ToInt64(config.LimitFallbackDownload.AfterBytes) - ToInt64(config.LimitFallbackDownload.BurstBytesPerSec),
})
io.Copy(underlying, NewRatelimitedConn(target, config))
}
// Here is bidirectional direct forwarding:
// client ---underlying--- server ---target--- dest