101 lines
2.6 KiB
Go
101 lines
2.6 KiB
Go
package nkode
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import (
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"errors"
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"fmt"
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m "go-nkode/core/model"
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)
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type InMemoryDb struct {
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Customers map[m.CustomerId]Customer
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Users map[m.UserId]User
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userIdMap map[string]m.UserId
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}
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func NewInMemoryDb() InMemoryDb {
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return InMemoryDb{
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Customers: make(map[m.CustomerId]Customer),
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Users: make(map[m.UserId]User),
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userIdMap: make(map[string]m.UserId),
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}
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}
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func (db *InMemoryDb) GetCustomer(id m.CustomerId) (*Customer, error) {
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customer, exists := db.Customers[id]
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if !exists {
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return nil, errors.New(fmt.Sprintf("customer %s dne", customer.Id))
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}
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return &customer, nil
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}
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func (db *InMemoryDb) GetUser(username m.Username, customerId m.CustomerId) (*User, error) {
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key := userIdKey(customerId, username)
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userId, exists := db.userIdMap[key]
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if !exists {
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return nil, errors.New(fmt.Sprintf("customer %s with username %s dne", customerId, username))
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}
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user, exists := db.Users[userId]
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if !exists {
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panic(fmt.Sprintf("userId %s with customerId %s and username %s with no user", userId, customerId, username))
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}
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return &user, nil
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}
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func (db *InMemoryDb) WriteNewCustomer(customer Customer) error {
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_, exists := db.Customers[customer.Id]
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if exists {
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return errors.New(fmt.Sprintf("can write customer %s; already exists", customer.Id))
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}
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db.Customers[customer.Id] = customer
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return nil
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}
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func (db *InMemoryDb) WriteNewUser(user User) error {
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_, exists := db.Customers[user.CustomerId]
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if !exists {
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return errors.New(fmt.Sprintf("can't add user %s to customer %s: customer dne", user.Username, user.CustomerId))
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}
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userExists, _ := db.GetUser(user.Username, user.CustomerId)
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if userExists != nil {
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return errors.New(fmt.Sprintf("can't write new user %s, alread exists", user.Username))
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}
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key := userIdKey(user.CustomerId, user.Username)
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db.userIdMap[key] = user.Id
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db.Users[user.Id] = user
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return nil
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}
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func (db *InMemoryDb) UpdateUserInterface(userId m.UserId, ui UserInterface) error {
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user, exists := db.Users[userId]
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if !exists {
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return errors.New(fmt.Sprintf("can't update user %s, dne", user.Id))
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}
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user.Interface = ui
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return nil
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}
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func (db *InMemoryDb) Renew(id m.CustomerId) error {
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customer, exists := db.Customers[id]
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if !exists {
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return errors.New(fmt.Sprintf("customer %s does not exist", id))
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}
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setXor, attrsXor := customer.RenewKeys()
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var err error
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for _, user := range db.Users {
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if user.CustomerId == id {
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err = user.RenewKeys(setXor[:user.Kp.AttrsPerKey], attrsXor[:user.Kp.TotalAttrs()])
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if err != nil {
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panic(err)
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}
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}
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}
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return nil
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}
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func userIdKey(customerId m.CustomerId, username m.Username) string {
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key := fmt.Sprintf("%s:%s", customerId, username)
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return key
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}
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