Files
go-nkode/internal/db/sqlite_db.go

481 lines
14 KiB
Go

package db
import (
"context"
"database/sql"
"errors"
"fmt"
"github.com/google/uuid"
_ "github.com/mattn/go-sqlite3" // Import the SQLite3 driver
"go-nkode/config"
"go-nkode/internal/entities"
"go-nkode/internal/models"
"go-nkode/internal/security"
"go-nkode/internal/sqlc"
"go-nkode/internal/utils"
"log"
"sync"
)
const writeBufferSize = 100
type sqlcGeneric func(*sqlc.Queries, context.Context, any) error
// WriteTx represents a write transaction
type WriteTx struct {
ErrChan chan error
Query sqlcGeneric
Args interface{}
}
// SqliteDB represents the SQLite database connection and write queue
type SqliteDB struct {
queries *sqlc.Queries
db *sql.DB
writeQueue chan WriteTx
wg sync.WaitGroup
ctx context.Context
cancel context.CancelFunc
}
// NewSqliteDB initializes a new SqliteDB instance
func NewSqliteDB(path string) (*SqliteDB, error) {
if path == "" {
return nil, errors.New("database path is required")
}
db, err := sql.Open("sqlite3", path)
if err != nil {
return nil, fmt.Errorf("failed to open database: %w", err)
}
if err := db.Ping(); err != nil {
return nil, fmt.Errorf("failed to connect to database: %w", err)
}
ctx, cancel := context.WithCancel(context.Background())
sqldb := &SqliteDB{
queries: sqlc.New(db),
db: db,
writeQueue: make(chan WriteTx, writeBufferSize),
ctx: ctx,
cancel: cancel,
}
sqldb.wg.Add(1)
go sqldb.processWriteQueue()
return sqldb, nil
}
// processWriteQueue handles write transactions from the queue
func (d *SqliteDB) processWriteQueue() {
defer d.wg.Done()
for {
select {
case <-d.ctx.Done():
return
case writeTx := <-d.writeQueue:
err := writeTx.Query(d.queries, d.ctx, writeTx.Args)
writeTx.ErrChan <- err
}
}
}
func (d *SqliteDB) Close() error {
d.cancel()
d.wg.Wait()
close(d.writeQueue)
return d.db.Close()
}
func (d *SqliteDB) CreateCustomer(c entities.Customer) error {
queryFunc := func(q *sqlc.Queries, ctx context.Context, args any) error {
params, ok := args.(sqlc.CreateCustomerParams)
if !ok {
return fmt.Errorf("invalid argument type: expected CreateCustomerParams")
}
return q.CreateCustomer(ctx, params)
}
return d.enqueueWriteTx(queryFunc, c.ToSqlcCreateCustomerParams())
}
func (d *SqliteDB) WriteNewUser(u entities.User) error {
queryFunc := func(q *sqlc.Queries, ctx context.Context, args any) error {
params, ok := args.(sqlc.CreateUserParams)
if !ok {
return fmt.Errorf("invalid argument type: expected CreateUserParams")
}
return q.CreateUser(ctx, params)
}
// Use the wrapped function in enqueueWriteTx
renew := 0
if u.Renew {
renew = 1
}
// Map entities.User to CreateUserParams
params := sqlc.CreateUserParams{
ID: uuid.UUID(u.Id).String(),
Email: string(u.Email),
Renew: int64(renew),
RefreshToken: sql.NullString{String: u.RefreshToken, Valid: u.RefreshToken != ""},
CustomerID: uuid.UUID(u.CustomerId).String(),
Code: u.EncipheredPasscode.Code,
Mask: u.EncipheredPasscode.Mask,
AttributesPerKey: int64(u.Kp.AttrsPerKey),
NumberOfKeys: int64(u.Kp.NumbOfKeys),
AlphaKey: security.Uint64ArrToByteArr(u.CipherKeys.AlphaKey),
SetKey: security.Uint64ArrToByteArr(u.CipherKeys.SetKey),
PassKey: security.Uint64ArrToByteArr(u.CipherKeys.PassKey),
MaskKey: security.Uint64ArrToByteArr(u.CipherKeys.MaskKey),
Salt: u.CipherKeys.Salt,
MaxNkodeLen: int64(u.CipherKeys.MaxNKodeLen),
IdxInterface: security.IntArrToByteArr(u.Interface.IdxInterface),
SvgIDInterface: security.IntArrToByteArr(u.Interface.SvgId),
CreatedAt: sql.NullString{String: utils.TimeStamp(), Valid: true},
}
return d.enqueueWriteTx(queryFunc, params)
}
func (d *SqliteDB) UpdateUserNKode(u entities.User) error {
queryFunc := func(q *sqlc.Queries, ctx context.Context, args any) error {
params, ok := args.(sqlc.UpdateUserParams)
if !ok {
return fmt.Errorf("invalid argument type: expected UpdateUserParams")
}
return q.UpdateUser(ctx, params)
}
// Use the wrapped function in enqueueWriteTx
renew := 0
if u.Renew {
renew = 1
}
params := sqlc.UpdateUserParams{
Email: string(u.Email),
Renew: int64(renew),
RefreshToken: sql.NullString{String: u.RefreshToken, Valid: u.RefreshToken != ""},
CustomerID: uuid.UUID(u.CustomerId).String(),
Code: u.EncipheredPasscode.Code,
Mask: u.EncipheredPasscode.Mask,
AttributesPerKey: int64(u.Kp.AttrsPerKey),
NumberOfKeys: int64(u.Kp.NumbOfKeys),
AlphaKey: security.Uint64ArrToByteArr(u.CipherKeys.AlphaKey),
SetKey: security.Uint64ArrToByteArr(u.CipherKeys.SetKey),
PassKey: security.Uint64ArrToByteArr(u.CipherKeys.PassKey),
MaskKey: security.Uint64ArrToByteArr(u.CipherKeys.MaskKey),
Salt: u.CipherKeys.Salt,
MaxNkodeLen: int64(u.CipherKeys.MaxNKodeLen),
IdxInterface: security.IntArrToByteArr(u.Interface.IdxInterface),
SvgIDInterface: security.IntArrToByteArr(u.Interface.SvgId),
}
return d.enqueueWriteTx(queryFunc, params)
}
func (d *SqliteDB) UpdateUserInterface(id models.UserId, ui entities.UserInterface) error {
queryFunc := func(q *sqlc.Queries, ctx context.Context, args any) error {
params, ok := args.(sqlc.UpdateUserInterfaceParams)
if !ok {
return fmt.Errorf("invalid argument type: expected UpdateUserInterfaceParams")
}
return q.UpdateUserInterface(ctx, params)
}
params := sqlc.UpdateUserInterfaceParams{
IdxInterface: security.IntArrToByteArr(ui.IdxInterface),
LastLogin: utils.TimeStamp(),
ID: uuid.UUID(id).String(),
}
return d.enqueueWriteTx(queryFunc, params)
}
func (d *SqliteDB) UpdateUserRefreshToken(id models.UserId, refreshToken string) error {
queryFunc := func(q *sqlc.Queries, ctx context.Context, args any) error {
params, ok := args.(sqlc.UpdateUserRefreshTokenParams)
if !ok {
return fmt.Errorf("invalid argument type: expected UpdateUserRefreshToken")
}
return q.UpdateUserRefreshToken(ctx, params)
}
params := sqlc.UpdateUserRefreshTokenParams{
RefreshToken: sql.NullString{
String: refreshToken,
Valid: true,
},
ID: uuid.UUID(id).String(),
}
return d.enqueueWriteTx(queryFunc, params)
}
func (d *SqliteDB) RenewCustomer(renewParams sqlc.RenewCustomerParams) error {
queryFunc := func(q *sqlc.Queries, ctx context.Context, args any) error {
params, ok := args.(sqlc.RenewCustomerParams)
if !ok {
}
return q.RenewCustomer(ctx, params)
}
return d.enqueueWriteTx(queryFunc, renewParams)
}
func (d *SqliteDB) Renew(id models.CustomerId) error {
setXor, attrXor, err := d.renewCustomer(id)
if err != nil {
return err
}
customerId := models.CustomerIdToString(id)
userRenewRows, err := d.queries.GetUserRenew(d.ctx, customerId)
if err != nil {
return err
}
queryFunc := func(q *sqlc.Queries, ctx context.Context, args any) error {
params, ok := args.(sqlc.RenewUserParams)
if !ok {
return fmt.Errorf("invalid argument type: expected RenewUserParams")
}
return q.RenewUser(ctx, params)
}
for _, row := range userRenewRows {
user := entities.User{
Id: models.UserIdFromString(row.ID),
CustomerId: models.CustomerId{},
Email: "",
EncipheredPasscode: models.EncipheredNKode{},
Kp: entities.KeypadDimension{
AttrsPerKey: int(row.AttributesPerKey),
NumbOfKeys: int(row.NumberOfKeys),
},
CipherKeys: entities.UserCipherKeys{
AlphaKey: security.ByteArrToUint64Arr(row.AlphaKey),
SetKey: security.ByteArrToUint64Arr(row.SetKey),
},
Interface: entities.UserInterface{},
Renew: false,
}
if err = user.RenewKeys(setXor, attrXor); err != nil {
return err
}
params := sqlc.RenewUserParams{
AlphaKey: security.Uint64ArrToByteArr(user.CipherKeys.AlphaKey),
SetKey: security.Uint64ArrToByteArr(user.CipherKeys.SetKey),
Renew: 1,
ID: uuid.UUID(user.Id).String(),
}
if err = d.enqueueWriteTx(queryFunc, params); err != nil {
return err
}
}
return nil
}
func (d *SqliteDB) renewCustomer(id models.CustomerId) ([]uint64, []uint64, error) {
customer, err := d.GetCustomer(id)
if err != nil {
return nil, nil, err
}
setXor, attrXor, err := customer.RenewKeys()
if err != nil {
return nil, nil, err
}
queryFunc := func(q *sqlc.Queries, ctx context.Context, args any) error {
params, ok := args.(sqlc.RenewCustomerParams)
if !ok {
return fmt.Errorf("invalid argument type: expected RenewCustomerParams")
}
return q.RenewCustomer(ctx, params)
}
params := sqlc.RenewCustomerParams{
AttributeValues: security.Uint64ArrToByteArr(customer.Attributes.AttrVals),
SetValues: security.Uint64ArrToByteArr(customer.Attributes.SetVals),
ID: uuid.UUID(customer.Id).String(),
}
if err = d.enqueueWriteTx(queryFunc, params); err != nil {
return nil, nil, err
}
return setXor, attrXor, nil
}
func (d *SqliteDB) RefreshUserPasscode(user entities.User, passcodeIdx []int, customerAttr entities.CustomerAttributes) error {
if err := user.RefreshPasscode(passcodeIdx, customerAttr); err != nil {
return err
}
queryFunc := func(q *sqlc.Queries, ctx context.Context, args any) error {
params, ok := args.(sqlc.RefreshUserPasscodeParams)
if !ok {
return fmt.Errorf("invalid argument type: expected RefreshUserPasscodeParams")
}
return q.RefreshUserPasscode(ctx, params)
}
params := sqlc.RefreshUserPasscodeParams{
Renew: 0,
Code: user.EncipheredPasscode.Code,
Mask: user.EncipheredPasscode.Mask,
AlphaKey: security.Uint64ArrToByteArr(user.CipherKeys.AlphaKey),
SetKey: security.Uint64ArrToByteArr(user.CipherKeys.SetKey),
PassKey: security.Uint64ArrToByteArr(user.CipherKeys.PassKey),
MaskKey: security.Uint64ArrToByteArr(user.CipherKeys.MaskKey),
Salt: user.CipherKeys.Salt,
ID: uuid.UUID(user.Id).String(),
}
return d.enqueueWriteTx(queryFunc, params)
}
func (d *SqliteDB) GetCustomer(id models.CustomerId) (*entities.Customer, error) {
customer, err := d.queries.GetCustomer(d.ctx, uuid.UUID(id).String())
if err != nil {
return nil, err
}
return &entities.Customer{
Id: id,
NKodePolicy: models.NKodePolicy{
MaxNkodeLen: int(customer.MaxNkodeLen),
MinNkodeLen: int(customer.MinNkodeLen),
DistinctSets: int(customer.DistinctSets),
DistinctAttributes: int(customer.DistinctAttributes),
LockOut: int(customer.LockOut),
Expiration: int(customer.Expiration),
},
Attributes: entities.NewCustomerAttributesFromBytes(customer.AttributeValues, customer.SetValues),
}, nil
}
func (d *SqliteDB) GetUser(email models.UserEmail, customerId models.CustomerId) (*entities.User, error) {
userRow, err := d.queries.GetUser(d.ctx, sqlc.GetUserParams{
Email: string(email),
CustomerID: uuid.UUID(customerId).String(),
})
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return nil, nil
}
return nil, fmt.Errorf("failed to get user: %w", err)
}
kp := entities.KeypadDimension{
AttrsPerKey: int(userRow.AttributesPerKey),
NumbOfKeys: int(userRow.NumberOfKeys),
}
renew := false
if userRow.Renew == 1 {
renew = true
}
user := entities.User{
Id: models.UserIdFromString(userRow.ID),
CustomerId: customerId,
Email: email,
EncipheredPasscode: models.EncipheredNKode{
Code: userRow.Code,
Mask: userRow.Mask,
},
Kp: kp,
CipherKeys: entities.UserCipherKeys{
AlphaKey: security.ByteArrToUint64Arr(userRow.AlphaKey),
SetKey: security.ByteArrToUint64Arr(userRow.SetKey),
PassKey: security.ByteArrToUint64Arr(userRow.PassKey),
MaskKey: security.ByteArrToUint64Arr(userRow.MaskKey),
Salt: userRow.Salt,
MaxNKodeLen: int(userRow.MaxNkodeLen),
Kp: &kp,
},
Interface: entities.UserInterface{
IdxInterface: security.ByteArrToIntArr(userRow.IdxInterface),
SvgId: security.ByteArrToIntArr(userRow.SvgIDInterface),
Kp: &kp,
},
Renew: renew,
RefreshToken: userRow.RefreshToken.String,
}
return &user, nil
}
func (d *SqliteDB) RandomSvgInterface(kp entities.KeypadDimension) ([]string, error) {
ids, err := d.getRandomIds(kp.TotalAttrs())
if err != nil {
return nil, err
}
return d.getSvgsById(ids)
}
func (d *SqliteDB) RandomSvgIdxInterface(kp entities.KeypadDimension) (models.SvgIdInterface, error) {
return d.getRandomIds(kp.TotalAttrs())
}
func (d *SqliteDB) GetSvgStringInterface(idxs models.SvgIdInterface) ([]string, error) {
return d.getSvgsById(idxs)
}
func (d *SqliteDB) getSvgsById(ids []int) ([]string, error) {
svgs := make([]string, len(ids))
for idx, id := range ids {
svg, err := d.queries.GetSvgId(d.ctx, int64(id))
if err != nil {
return nil, err
}
svgs[idx] = svg
}
return svgs, nil
}
func (d *SqliteDB) enqueueWriteTx(queryFunc sqlcGeneric, args any) error {
select {
case <-d.ctx.Done():
return errors.New("database is shutting down")
default:
}
errChan := make(chan error, 1)
writeTx := WriteTx{
Query: queryFunc,
Args: args,
ErrChan: errChan,
}
d.writeQueue <- writeTx
return <-errChan
}
func (d *SqliteDB) getRandomIds(count int) ([]int, error) {
tx, err := d.db.Begin()
if err != nil {
log.Print(err)
return nil, config.ErrSqliteTx
}
rows, err := tx.Query("SELECT COUNT(*) as count FROM svg_icon;")
if err != nil {
log.Print(err)
return nil, config.ErrSqliteTx
}
var tableLen int
if !rows.Next() {
return nil, config.ErrEmptySvgTable
}
if err = rows.Scan(&tableLen); err != nil {
log.Print(err)
return nil, config.ErrSqliteTx
}
perm, err := security.RandomPermutation(tableLen)
if err != nil {
return nil, err
}
for idx := range perm {
perm[idx] += 1
}
if err = tx.Commit(); err != nil {
log.Print(err)
return nil, config.ErrSqliteTx
}
return perm[:count], nil
}