90 lines
2.2 KiB
Go
90 lines
2.2 KiB
Go
package nkode
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import (
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"errors"
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"github.com/google/uuid"
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m "go-nkode/core/model"
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py "go-nkode/py-builtin"
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)
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var KeyIndexOutOfRange error = errors.New("one or more keys is out of range")
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func ValidKeyEntry(user m.User, customer m.Customer, selectedKeys []int) ([]int, error) {
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validKeys := py.All[int](selectedKeys, func(idx int) bool {
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return 0 <= idx && idx < user.Kp.NumbOfKeys
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})
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if !validKeys {
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panic(KeyIndexOutOfRange)
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}
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var err error
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passcodeLen := len(selectedKeys)
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err = customer.NKodePolicy.ValidLength(passcodeLen)
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if err != nil {
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return nil, err
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}
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setVals, err := customer.Attributes.SetValsForKp(user.Kp)
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if err != nil {
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return nil, err
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}
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passcodeSetVals, err := user.DecipherMask(setVals, passcodeLen)
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if err != nil {
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return nil, err
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}
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presumedAttrIdxVals := make([]int, passcodeLen)
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for idx := range presumedAttrIdxVals {
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keyNumb := selectedKeys[idx]
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setIdx, err := customer.Attributes.IndexOfSet(passcodeSetVals[idx])
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if err != nil {
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return nil, err
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}
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selectedAttrIdx, err := user.Interface.GetAttrIdxByKeyNumbSetIdx(setIdx, keyNumb)
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if err != nil {
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return nil, err
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}
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presumedAttrIdxVals[idx] = selectedAttrIdx
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}
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err = customer.IsValidNKode(user.Kp, presumedAttrIdxVals)
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if err != nil {
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panic(err)
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}
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attrVals, err := customer.Attributes.AttrValsForKp(user.Kp)
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if err != nil {
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panic(err)
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}
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err = user.UserKeys.ValidPassword(user.EncipheredPasscode.Code, presumedAttrIdxVals, attrVals)
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if err != nil {
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return nil, err
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}
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return presumedAttrIdxVals, nil
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}
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func NewUser(customer m.Customer, username m.Username, passcodeIdx []int, ui m.UserInterface, kp m.KeypadDimension) (*m.User, error) {
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setVals, err := customer.Attributes.SetValsForKp(kp)
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if err != nil {
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return nil, err
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}
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newKeys, err := m.NewUserCipherKeys(&kp, setVals, customer.NKodePolicy.MaxNkodeLen)
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if err != nil {
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return nil, err
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}
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encipheredNKode, err := newKeys.EncipherNKode(passcodeIdx, customer.Attributes)
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if err != nil {
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return nil, err
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}
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newUser := m.User{
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Id: m.UserId(uuid.New()),
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Username: username,
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EncipheredPasscode: *encipheredNKode,
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UserKeys: *newKeys,
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Interface: ui,
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Kp: kp,
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CustomerId: customer.Id,
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}
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return &newUser, nil
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}
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