github.com/chwjbn/xclash@v0.2.0/component/auth/auth.go (about)

     1  package auth
     2  
     3  import (
     4  	"sync"
     5  )
     6  
     7  type Authenticator interface {
     8  	Verify(user string, pass string) bool
     9  	Users() []string
    10  }
    11  
    12  type AuthUser struct {
    13  	User string
    14  	Pass string
    15  }
    16  
    17  type inMemoryAuthenticator struct {
    18  	storage   *sync.Map
    19  	usernames []string
    20  }
    21  
    22  func (au *inMemoryAuthenticator) Verify(user string, pass string) bool {
    23  	realPass, ok := au.storage.Load(user)
    24  	return ok && realPass == pass
    25  }
    26  
    27  func (au *inMemoryAuthenticator) Users() []string { return au.usernames }
    28  
    29  func NewAuthenticator(users []AuthUser) Authenticator {
    30  	if len(users) == 0 {
    31  		return nil
    32  	}
    33  
    34  	au := &inMemoryAuthenticator{storage: &sync.Map{}}
    35  	for _, user := range users {
    36  		au.storage.Store(user.User, user.Pass)
    37  	}
    38  	usernames := make([]string, 0, len(users))
    39  	au.storage.Range(func(key, value interface{}) bool {
    40  		usernames = append(usernames, key.(string))
    41  		return true
    42  	})
    43  	au.usernames = usernames
    44  
    45  	return au
    46  }