mirror of https://github.com/v2ray/v2ray-core
38 lines
710 B
Go
38 lines
710 B
Go
package io
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import (
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"hash/fnv"
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"v2ray.com/core/common/alloc"
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v2io "v2ray.com/core/common/io"
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"v2ray.com/core/common/serial"
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)
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type AuthChunkWriter struct {
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writer v2io.Writer
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}
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func NewAuthChunkWriter(writer v2io.Writer) *AuthChunkWriter {
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return &AuthChunkWriter{
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writer: writer,
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}
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}
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func (v *AuthChunkWriter) Write(buffer *alloc.Buffer) error {
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Authenticate(buffer)
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return v.writer.Write(buffer)
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}
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func (v *AuthChunkWriter) Release() {
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v.writer.Release()
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v.writer = nil
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}
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func Authenticate(buffer *alloc.Buffer) {
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fnvHash := fnv.New32a()
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fnvHash.Write(buffer.Bytes())
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buffer.PrependFunc(4, serial.WriteHash(fnvHash))
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buffer.PrependFunc(2, serial.WriteUint16(uint16(buffer.Len())))
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}
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