github.com/v2fly/v2ray-core/v5@v5.16.2-0.20240507031116-8191faa6e095/proxy/vmess/account.go (about)

     1  //go:build !confonly
     2  // +build !confonly
     3  
     4  package vmess
     5  
     6  import (
     7  	"strings"
     8  
     9  	"github.com/v2fly/v2ray-core/v5/common/dice"
    10  	"github.com/v2fly/v2ray-core/v5/common/protocol"
    11  	"github.com/v2fly/v2ray-core/v5/common/uuid"
    12  )
    13  
    14  // MemoryAccount is an in-memory form of VMess account.
    15  type MemoryAccount struct {
    16  	// ID is the main ID of the account.
    17  	ID *protocol.ID
    18  	// AlterIDs are the alternative IDs of the account.
    19  	AlterIDs []*protocol.ID
    20  	// Security type of the account. Used for client connections.
    21  	Security protocol.SecurityType
    22  
    23  	AuthenticatedLengthExperiment bool
    24  	NoTerminationSignal           bool
    25  }
    26  
    27  // AnyValidID returns an ID that is either the main ID or one of the alternative IDs if any.
    28  func (a *MemoryAccount) AnyValidID() *protocol.ID {
    29  	if len(a.AlterIDs) == 0 {
    30  		return a.ID
    31  	}
    32  	return a.AlterIDs[dice.Roll(len(a.AlterIDs))]
    33  }
    34  
    35  // Equals implements protocol.Account.
    36  func (a *MemoryAccount) Equals(account protocol.Account) bool {
    37  	vmessAccount, ok := account.(*MemoryAccount)
    38  	if !ok {
    39  		return false
    40  	}
    41  	// TODO: handle AlterIds difference
    42  	return a.ID.Equals(vmessAccount.ID)
    43  }
    44  
    45  // AsAccount implements protocol.Account.
    46  func (a *Account) AsAccount() (protocol.Account, error) {
    47  	id, err := uuid.ParseString(a.Id)
    48  	if err != nil {
    49  		return nil, newError("failed to parse ID").Base(err).AtError()
    50  	}
    51  	protoID := protocol.NewID(id)
    52  	var AuthenticatedLength, NoTerminationSignal bool
    53  	if strings.Contains(a.TestsEnabled, "AuthenticatedLength") {
    54  		AuthenticatedLength = true
    55  	}
    56  	if strings.Contains(a.TestsEnabled, "NoTerminationSignal") {
    57  		NoTerminationSignal = true
    58  	}
    59  	return &MemoryAccount{
    60  		ID:                            protoID,
    61  		AlterIDs:                      protocol.NewAlterIDs(protoID, uint16(a.AlterId)),
    62  		Security:                      a.SecuritySettings.GetSecurityType(),
    63  		AuthenticatedLengthExperiment: AuthenticatedLength,
    64  		NoTerminationSignal:           NoTerminationSignal,
    65  	}, nil
    66  }