Xray-core/proxy/vmess/account.go

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package vmess
import (
"strings"
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"github.com/xtls/xray-core/common/dice"
"github.com/xtls/xray-core/common/protocol"
"github.com/xtls/xray-core/common/uuid"
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)
// MemoryAccount is an in-memory form of VMess account.
type MemoryAccount struct {
// ID is the main ID of the account.
ID *protocol.ID
// AlterIDs are the alternative IDs of the account.
AlterIDs []*protocol.ID
// Security type of the account. Used for client connections.
Security protocol.SecurityType
AuthenticatedLengthExperiment bool
NoTerminationSignal bool
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}
// AnyValidID returns an ID that is either the main ID or one of the alternative IDs if any.
func (a *MemoryAccount) AnyValidID() *protocol.ID {
if len(a.AlterIDs) == 0 {
return a.ID
}
return a.AlterIDs[dice.Roll(len(a.AlterIDs))]
}
// Equals implements protocol.Account.
func (a *MemoryAccount) Equals(account protocol.Account) bool {
vmessAccount, ok := account.(*MemoryAccount)
if !ok {
return false
}
// TODO: handle AlterIds difference
return a.ID.Equals(vmessAccount.ID)
}
// AsAccount implements protocol.Account.
func (a *Account) AsAccount() (protocol.Account, error) {
id, err := uuid.ParseString(a.Id)
if err != nil {
return nil, newError("failed to parse ID").Base(err).AtError()
}
protoID := protocol.NewID(id)
var AuthenticatedLength, NoTerminationSignal bool
if strings.Contains(a.TestsEnabled, "AuthenticatedLength") {
AuthenticatedLength = true
}
if strings.Contains(a.TestsEnabled, "NoTerminationSignal") {
NoTerminationSignal = true
}
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return &MemoryAccount{
ID: protoID,
AlterIDs: protocol.NewAlterIDs(protoID, uint16(a.AlterId)),
Security: a.SecuritySettings.GetSecurityType(),
AuthenticatedLengthExperiment: AuthenticatedLength,
NoTerminationSignal: NoTerminationSignal,
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}, nil
}