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mirror of https://github.com/v2fly/v2ray-core.git synced 2024-10-30 15:57:35 -04:00
v2fly/proxy/vmess/io/writer.go
2016-11-27 21:39:09 +01:00

37 lines
634 B
Go

package io
import (
"hash/fnv"
"v2ray.com/core/common/alloc"
v2io "v2ray.com/core/common/io"
)
type AuthChunkWriter struct {
writer v2io.Writer
}
func NewAuthChunkWriter(writer v2io.Writer) *AuthChunkWriter {
return &AuthChunkWriter{
writer: writer,
}
}
func (v *AuthChunkWriter) Write(buffer *alloc.Buffer) error {
Authenticate(buffer)
return v.writer.Write(buffer)
}
func (v *AuthChunkWriter) Release() {
v.writer.Release()
v.writer = nil
}
func Authenticate(buffer *alloc.Buffer) {
fnvHash := fnv.New32a()
fnvHash.Write(buffer.Value)
buffer.PrependHash(fnvHash)
buffer.PrependUint16(uint16(buffer.Len()))
}