447 lines
12 KiB
Go
447 lines
12 KiB
Go
package core
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import (
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"database/sql"
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"errors"
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"fmt"
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"github.com/google/uuid"
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_ "github.com/mattn/go-sqlite3" // Import the SQLite3 driver
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"go-nkode/util"
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"log"
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"sync"
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)
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type SqliteDB struct {
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db *sql.DB
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stop bool
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writeQueue chan WriteTx
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wg sync.WaitGroup
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}
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type WriteTx struct {
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ErrChan chan error
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Query string
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Args []any
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}
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const (
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writeBuffer = 1000
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)
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func NewSqliteDB(path string) *SqliteDB {
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db, err := sql.Open("sqlite3", path)
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if err != nil {
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log.Fatal("database didn't open ", err)
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}
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sqldb := SqliteDB{
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db: db,
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stop: false,
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writeQueue: make(chan WriteTx, writeBuffer),
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}
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go func() {
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for writeTx := range sqldb.writeQueue {
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writeTx.ErrChan <- sqldb.writeToDb(writeTx.Query, writeTx.Args)
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sqldb.wg.Done()
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}
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}()
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return &sqldb
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}
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func (d *SqliteDB) CloseDb() {
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d.stop = true
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d.wg.Wait()
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if err := d.db.Close(); err != nil {
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// If db.Close() returns an error, panic
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panic(fmt.Sprintf("Failed to close the database: %v", err))
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}
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}
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func (d *SqliteDB) WriteNewCustomer(c Customer) error {
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query := `
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INSERT INTO customer (id, max_nkode_len, min_nkode_len, distinct_sets, distinct_attributes, lock_out, expiration, attribute_values, set_values)
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VALUES (?,?,?,?,?,?,?,?,?)
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`
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args := []any{uuid.UUID(c.Id), c.NKodePolicy.MaxNkodeLen, c.NKodePolicy.MinNkodeLen, c.NKodePolicy.DistinctSets, c.NKodePolicy.DistinctAttributes, c.NKodePolicy.LockOut, c.NKodePolicy.Expiration, c.Attributes.AttrBytes(), c.Attributes.SetBytes()}
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return d.addWriteTx(query, args)
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}
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func (d *SqliteDB) WriteNewUser(u User) error {
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query := `
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INSERT INTO user (id, username, renew, refresh_token, customer_id, code, mask, attributes_per_key, number_of_keys, alpha_key, set_key, pass_key, mask_key, salt, max_nkode_len, idx_interface, svg_id_interface)
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VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
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`
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var renew int
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if u.Renew {
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renew = 1
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} else {
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renew = 0
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}
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args := []any{uuid.UUID(u.Id), u.Email, renew, u.RefreshToken, uuid.UUID(u.CustomerId), u.EncipheredPasscode.Code, u.EncipheredPasscode.Mask, u.Kp.AttrsPerKey, u.Kp.NumbOfKeys, util.Uint64ArrToByteArr(u.CipherKeys.AlphaKey), util.Uint64ArrToByteArr(u.CipherKeys.SetKey), util.Uint64ArrToByteArr(u.CipherKeys.PassKey), util.Uint64ArrToByteArr(u.CipherKeys.MaskKey), u.CipherKeys.Salt, u.CipherKeys.MaxNKodeLen, util.IntArrToByteArr(u.Interface.IdxInterface), util.IntArrToByteArr(u.Interface.SvgId)}
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return d.addWriteTx(query, args)
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}
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func (d *SqliteDB) UpdateUserNKode(u User) error {
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query := `
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UPDATE user
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SET renew = ?, refresh_token = ?, code = ?, mask = ?, attributes_per_key = ?, number_of_keys = ?, alpha_key = ?, set_key = ?, pass_key = ?, mask_key = ?, salt = ?, max_nkode_len = ?, idx_interface = ?, svg_id_interface = ?
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WHERE username = ? AND customer_id = ?
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`
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var renew int
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if u.Renew {
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renew = 1
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} else {
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renew = 0
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}
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args := []any{renew, u.RefreshToken, u.EncipheredPasscode.Code, u.EncipheredPasscode.Mask, u.Kp.AttrsPerKey, u.Kp.NumbOfKeys, util.Uint64ArrToByteArr(u.CipherKeys.AlphaKey), util.Uint64ArrToByteArr(u.CipherKeys.SetKey), util.Uint64ArrToByteArr(u.CipherKeys.PassKey), util.Uint64ArrToByteArr(u.CipherKeys.MaskKey), u.CipherKeys.Salt, u.CipherKeys.MaxNKodeLen, util.IntArrToByteArr(u.Interface.IdxInterface), util.IntArrToByteArr(u.Interface.SvgId), string(u.Email), uuid.UUID(u.CustomerId)}
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return d.addWriteTx(query, args)
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}
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func (d *SqliteDB) UpdateUserInterface(id UserId, ui UserInterface) error {
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query := `
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UPDATE user SET idx_interface = ? WHERE id = ?
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`
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args := []any{util.IntArrToByteArr(ui.IdxInterface), uuid.UUID(id).String()}
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return d.addWriteTx(query, args)
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}
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func (d *SqliteDB) UpdateUserRefreshToken(id UserId, refreshToken string) error {
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query := `
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UPDATE user SET refresh_token = ? WHERE id = ?
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`
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args := []any{refreshToken, uuid.UUID(id).String()}
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return d.addWriteTx(query, args)
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}
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func (d *SqliteDB) Renew(id CustomerId) error {
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// TODO: How long does a renew take?
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customer, err := d.GetCustomer(id)
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if err != nil {
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return err
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}
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setXor, attrXor := customer.RenewKeys()
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renewArgs := []any{util.Uint64ArrToByteArr(customer.Attributes.AttrVals), util.Uint64ArrToByteArr(customer.Attributes.SetVals), uuid.UUID(customer.Id).String()}
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// TODO: replace with tx
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renewQuery := `
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UPDATE customer SET attribute_values = ?, set_values = ? WHERE id = ?;
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`
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userQuery := `
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SELECT id, alpha_key, set_key, attributes_per_key, number_of_keys FROM user WHERE customer_id = ?
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`
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tx, err := d.db.Begin()
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if err != nil {
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return err
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}
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rows, err := tx.Query(userQuery, uuid.UUID(id).String())
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for rows.Next() {
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var userId string
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var alphaBytes []byte
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var setBytes []byte
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var attrsPerKey int
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var numbOfKeys int
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err = rows.Scan(&userId, &alphaBytes, &setBytes, &attrsPerKey, &numbOfKeys)
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if err != nil {
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return err
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}
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user := User{
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Id: UserId{},
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CustomerId: CustomerId{},
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Email: "",
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EncipheredPasscode: EncipheredNKode{},
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Kp: KeypadDimension{
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AttrsPerKey: attrsPerKey,
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NumbOfKeys: numbOfKeys,
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},
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CipherKeys: UserCipherKeys{
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AlphaKey: util.ByteArrToUint64Arr(alphaBytes),
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SetKey: util.ByteArrToUint64Arr(setBytes),
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},
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Interface: UserInterface{},
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Renew: false,
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}
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err = user.RenewKeys(setXor, attrXor)
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if err != nil {
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return err
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}
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renewQuery += "\nUPDATE user SET alpha_key = ?, set_key = ?, renew = ? WHERE id = ?;"
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renewArgs = append(renewArgs, util.Uint64ArrToByteArr(user.CipherKeys.AlphaKey), util.Uint64ArrToByteArr(user.CipherKeys.SetKey), 1, userId)
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}
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renewQuery += `
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`
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err = tx.Commit()
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if err != nil {
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return err
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}
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return d.addWriteTx(renewQuery, renewArgs)
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}
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func (d *SqliteDB) RefreshUserPasscode(user User, passcodeIdx []int, customerAttr CustomerAttributes) error {
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err := user.RefreshPasscode(passcodeIdx, customerAttr)
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if err != nil {
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return err
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}
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query := `
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UPDATE user SET renew = ?, code = ?, mask = ?, alpha_key = ?, set_key = ?, pass_key = ?, mask_key = ?, salt = ? WHERE id = ?;
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`
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args := []any{user.RefreshToken, 0, user.EncipheredPasscode.Code, user.EncipheredPasscode.Mask, util.Uint64ArrToByteArr(user.CipherKeys.AlphaKey), util.Uint64ArrToByteArr(user.CipherKeys.SetKey), util.Uint64ArrToByteArr(user.CipherKeys.PassKey), util.Uint64ArrToByteArr(user.CipherKeys.MaskKey), user.CipherKeys.Salt, uuid.UUID(user.Id).String()}
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return d.addWriteTx(query, args)
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}
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func (d *SqliteDB) GetCustomer(id CustomerId) (*Customer, error) {
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tx, err := d.db.Begin()
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if err != nil {
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return nil, err
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}
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defer func() {
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if err != nil {
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err = tx.Rollback()
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if err != nil {
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log.Fatal(fmt.Sprintf("Write new user won't roll back %+v", err))
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}
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}
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}()
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selectCustomer := `SELECT max_nkode_len, min_nkode_len, distinct_sets, distinct_attributes, lock_out, expiration, attribute_values, set_values FROM customer WHERE id = ?`
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rows, err := tx.Query(selectCustomer, uuid.UUID(id))
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if !rows.Next() {
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return nil, errors.New(fmt.Sprintf("no new row for customer %s with err %s", id, rows.Err()))
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}
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var maxNKodeLen int
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var minNKodeLen int
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var distinctSets int
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var distinctAttributes int
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var lockOut int
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var expiration int
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var attributeValues []byte
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var setValues []byte
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err = rows.Scan(&maxNKodeLen, &minNKodeLen, &distinctSets, &distinctAttributes, &lockOut, &expiration, &attributeValues, &setValues)
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if err != nil {
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return nil, err
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}
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if rows.Next() {
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return nil, errors.New(fmt.Sprintf("too many rows for customer %s", id))
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}
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customer := Customer{
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Id: id,
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NKodePolicy: NKodePolicy{
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MaxNkodeLen: maxNKodeLen,
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MinNkodeLen: minNKodeLen,
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DistinctSets: distinctSets,
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DistinctAttributes: distinctAttributes,
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LockOut: lockOut,
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Expiration: expiration,
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},
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Attributes: NewCustomerAttributesFromBytes(attributeValues, setValues),
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}
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err = tx.Commit()
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if err != nil {
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return nil, fmt.Errorf("read customer won't commit %w", err)
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}
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return &customer, nil
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}
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func (d *SqliteDB) GetUser(username UserEmail, customerId CustomerId) (*User, error) {
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tx, err := d.db.Begin()
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if err != nil {
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return nil, err
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}
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userSelect := `
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SELECT id, renew, refresh_token, code, mask, attributes_per_key, number_of_keys, alpha_key, set_key, pass_key, mask_key, salt, max_nkode_len, idx_interface, svg_id_interface FROM user
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WHERE user.username = ? AND user.customer_id = ?
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`
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rows, err := tx.Query(userSelect, string(username), uuid.UUID(customerId).String())
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if !rows.Next() {
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return nil, nil
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}
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var id string
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var renewVal int
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var refreshToken string
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var code string
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var mask string
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var attrsPerKey int
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var numbOfKeys int
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var alphaKey []byte
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var setKey []byte
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var passKey []byte
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var maskKey []byte
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var salt []byte
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var maxNKodeLen int
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var idxInterface []byte
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var svgIdInterface []byte
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err = rows.Scan(&id, &renewVal, &refreshToken, &code, &mask, &attrsPerKey, &numbOfKeys, &alphaKey, &setKey, &passKey, &maskKey, &salt, &maxNKodeLen, &idxInterface, &svgIdInterface)
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if rows.Next() {
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return nil, errors.New(fmt.Sprintf("too many rows for user %s of customer %s", username, customerId))
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}
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userId, err := uuid.Parse(id)
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if err != nil {
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return nil, err
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}
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var renew bool
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if renewVal == 0 {
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renew = false
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} else {
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renew = true
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}
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user := User{
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Id: UserId(userId),
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CustomerId: customerId,
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Email: username,
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EncipheredPasscode: EncipheredNKode{
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Code: code,
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Mask: mask,
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},
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Kp: KeypadDimension{
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AttrsPerKey: attrsPerKey,
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NumbOfKeys: numbOfKeys,
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},
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CipherKeys: UserCipherKeys{
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AlphaKey: util.ByteArrToUint64Arr(alphaKey),
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SetKey: util.ByteArrToUint64Arr(setKey),
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PassKey: util.ByteArrToUint64Arr(passKey),
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MaskKey: util.ByteArrToUint64Arr(maskKey),
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Salt: salt,
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MaxNKodeLen: maxNKodeLen,
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Kp: nil,
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},
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Interface: UserInterface{
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IdxInterface: util.ByteArrToIntArr(idxInterface),
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SvgId: util.ByteArrToIntArr(svgIdInterface),
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Kp: nil,
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},
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Renew: renew,
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RefreshToken: refreshToken,
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}
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user.Interface.Kp = &user.Kp
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user.CipherKeys.Kp = &user.Kp
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err = tx.Commit()
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if err != nil {
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return nil, err
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}
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return &user, nil
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}
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func (d *SqliteDB) RandomSvgInterface(kp KeypadDimension) ([]string, error) {
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ids, err := d.getRandomIds(kp.TotalAttrs())
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if err != nil {
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return nil, err
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}
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return d.getSvgsById(ids)
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}
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func (d *SqliteDB) RandomSvgIdxInterface(kp KeypadDimension) (SvgIdInterface, error) {
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return d.getRandomIds(kp.TotalAttrs())
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}
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func (d *SqliteDB) GetSvgStringInterface(idxs SvgIdInterface) ([]string, error) {
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return d.getSvgsById(idxs)
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}
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func (d *SqliteDB) getSvgsById(ids []int) ([]string, error) {
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tx, err := d.db.Begin()
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if err != nil {
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return nil, err
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}
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selectId := "SELECT svg FROM svg_icon where id = ?"
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svgs := make([]string, len(ids))
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for idx, id := range ids {
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rows, err := tx.Query(selectId, id)
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if err != nil {
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return nil, err
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}
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if !rows.Next() {
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return nil, errors.New(fmt.Sprintf("id not found: %d", id))
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}
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err = rows.Scan(&svgs[idx])
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if err != nil {
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return nil, err
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}
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}
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err = tx.Commit()
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if err != nil {
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return nil, err
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}
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return svgs, nil
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}
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func (d *SqliteDB) writeToDb(query string, args []any) error {
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tx, err := d.db.Begin()
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if err != nil {
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return err
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}
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defer func() {
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if err != nil {
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err = tx.Rollback()
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if err != nil {
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log.Fatal(fmt.Sprintf("Write won't roll back %+v", err))
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}
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}
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}()
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_, err = tx.Exec(query, args...)
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if err != nil {
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return err
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}
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err = tx.Commit()
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if err != nil {
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return err
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}
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return nil
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}
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func (d *SqliteDB) addWriteTx(query string, args []any) error {
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if d.stop {
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return errors.New("stopping database")
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}
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errChan := make(chan error)
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writeTx := WriteTx{
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Query: query,
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Args: args,
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ErrChan: errChan,
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}
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d.wg.Add(1)
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d.writeQueue <- writeTx
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return <-errChan
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}
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func (d *SqliteDB) getRandomIds(count int) ([]int, error) {
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tx, err := d.db.Begin()
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if err != nil {
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return nil, err
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}
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rows, err := tx.Query("SELECT COUNT(*) as count FROM svg_icon;")
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if err != nil {
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return nil, err
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}
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var tableLen int
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if !rows.Next() {
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return nil, errors.New("empty svg_icon table")
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}
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if err = rows.Scan(&tableLen); err != nil {
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return nil, err
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}
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perm, err := util.RandomPermutation(tableLen)
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if err != nil {
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return nil, err
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}
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for idx := range perm {
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perm[idx] += 1
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}
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if err = tx.Commit(); err != nil {
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return nil, err
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}
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return perm[:count], nil
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}
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