Add oauth2 like auth service

Signed-off-by: Asai Neko <sugar@sne.moe>

pkgs/authcode/authcode.go

@@ -25,29 +25,29 @@ func NewAuthCode(email string) (string, error) {
 		return "", err
 	}
 
-	token := base64.RawURLEncoding.EncodeToString(b)
+	code := base64.RawURLEncoding.EncodeToString(b)
 
-	store.Store(token, Token{
+	store.Store(code, Token{
 		Email:     email,
 		ExpiresAt: time.Now().Add(viper.GetDuration("ttl.magic_link_ttl")),
 	})
 
-	return token, nil
+	return code, nil
 }
 
 // Verify magic token
-func VerifyAuthCode(token string) (string, bool) {
-	val, ok := store.Load(token)
+func VerifyAuthCode(code string) (string, bool) {
+	val, ok := store.Load(code)
 	if !ok {
 		return "", false
 	}
 
 	t := val.(Token)
 	if time.Now().After(t.ExpiresAt) {
-		store.Delete(token)
+		store.Delete(code)
 		return "", false
 	}
 
-	store.Delete(token)
+	store.Delete(code)
 	return t.Email, true
 }