46 lines
893 B
Go
46 lines
893 B
Go
package auth
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import (
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"sync"
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)
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type Authenticator interface {
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Verify(user string, pass string) bool
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Users() []string
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}
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type AuthUser struct {
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User string
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Pass string
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}
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type inMemoryAuthenticator struct {
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storage *sync.Map
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usernames []string
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}
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func (au *inMemoryAuthenticator) Verify(user string, pass string) bool {
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realPass, ok := au.storage.Load(user)
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return ok && realPass == pass
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}
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func (au *inMemoryAuthenticator) Users() []string { return au.usernames }
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func NewAuthenticator(users []AuthUser) Authenticator {
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if len(users) == 0 {
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return nil
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}
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au := &inMemoryAuthenticator{storage: &sync.Map{}}
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for _, user := range users {
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au.storage.Store(user.User, user.Pass)
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}
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usernames := make([]string, 0, len(users))
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au.storage.Range(func(key, value any) bool {
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usernames = append(usernames, key.(string))
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return true
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})
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au.usernames = usernames
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return au
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}
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