mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-09-19 02:16:11 -04:00
94 lines
2.2 KiB
Go
94 lines
2.2 KiB
Go
package command
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import (
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"io"
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v2net "github.com/v2ray/v2ray-core/common/net"
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proto "github.com/v2ray/v2ray-core/common/protocol"
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"github.com/v2ray/v2ray-core/common/serial"
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"github.com/v2ray/v2ray-core/common/uuid"
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"github.com/v2ray/v2ray-core/transport"
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)
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func init() {
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RegisterResponseCommand(1, func() Command { return new(SwitchAccount) })
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}
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// Structure
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// 1 byte: host len N
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// N bytes: host
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// 2 bytes: port
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// 16 bytes: uuid
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// 2 bytes: alterid
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// 1 byte: level
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// 1 bytes: time
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type SwitchAccount struct {
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Host v2net.Address
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Port v2net.Port
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ID *uuid.UUID
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AlterIds serial.Uint16Literal
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Level proto.UserLevel
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ValidMin byte
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}
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func (this *SwitchAccount) Marshal(writer io.Writer) {
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hostStr := ""
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if this.Host != nil {
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hostStr = this.Host.String()
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}
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writer.Write([]byte{byte(len(hostStr))})
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if len(hostStr) > 0 {
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writer.Write([]byte(hostStr))
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}
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writer.Write(this.Port.Bytes())
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idBytes := this.ID.Bytes()
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writer.Write(idBytes)
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writer.Write(this.AlterIds.Bytes())
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writer.Write([]byte{byte(this.Level)})
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writer.Write([]byte{this.ValidMin})
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}
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func (this *SwitchAccount) Unmarshal(data []byte) error {
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if len(data) == 0 {
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return transport.ErrorCorruptedPacket
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}
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lenHost := int(data[0])
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if len(data) < lenHost+1 {
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return transport.ErrorCorruptedPacket
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}
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if lenHost > 0 {
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this.Host = v2net.ParseAddress(string(data[1 : 1+lenHost]))
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}
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portStart := 1 + lenHost
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if len(data) < portStart+2 {
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return transport.ErrorCorruptedPacket
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}
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this.Port = v2net.PortFromBytes(data[portStart : portStart+2])
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idStart := portStart + 2
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if len(data) < idStart+16 {
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return transport.ErrorCorruptedPacket
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}
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this.ID, _ = uuid.ParseBytes(data[idStart : idStart+16])
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alterIdStart := idStart + 16
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if len(data) < alterIdStart+2 {
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return transport.ErrorCorruptedPacket
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}
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this.AlterIds = serial.BytesLiteral(data[alterIdStart : alterIdStart+2]).Uint16()
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levelStart := alterIdStart + 2
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if len(data) < levelStart+1 {
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return transport.ErrorCorruptedPacket
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}
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this.Level = proto.UserLevel(data[levelStart])
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timeStart := levelStart + 1
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if len(data) < timeStart {
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return transport.ErrorCorruptedPacket
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}
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this.ValidMin = data[timeStart]
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return nil
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}
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