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memory.go
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memory.go
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package memory
import (
"flag"
"fmt"
"strconv"
"strings"
"github.com/ViBiOh/auth/v2/pkg/auth"
"github.com/ViBiOh/auth/v2/pkg/ident/basic"
"github.com/ViBiOh/auth/v2/pkg/model"
"github.com/ViBiOh/flags"
)
var (
_ auth.Provider = App{}
_ basic.Provider = App{}
)
// App of package
type App struct {
ident map[string]basicUser
auth map[uint64][]string
}
// Config of package
type Config struct {
ident *string
auth *string
}
// Flags adds flags for configuring package
func Flags(fs *flag.FlagSet, prefix string, overrides ...flags.Override) Config {
return Config{
ident: flags.New("Users", "Users credentials in the form 'id:login:password,id2:login2:password2'").Prefix(prefix).DocPrefix("memory").String(fs, "", overrides),
auth: flags.New("Profiles", "Users profiles in the form 'id:profile1|profile2,id2:profile1'").Prefix(prefix).DocPrefix("memory").String(fs, "", overrides),
}
}
// New creates new App from Config
func New(config Config) (App, error) {
identApp, err := loadIdent(strings.TrimSpace(*config.ident))
if err != nil {
return App{}, err
}
authApp, err := loadAuth(strings.TrimSpace(*config.auth))
if err != nil {
return App{}, err
}
return App{
ident: identApp,
auth: authApp,
}, nil
}
func loadIdent(ident string) (map[string]basicUser, error) {
if len(ident) == 0 {
return nil, nil
}
users := make(map[string]basicUser)
ids := make(map[uint64]bool)
for _, identUser := range strings.Split(ident, ",") {
parts := strings.Split(identUser, ":")
if len(parts) != 3 {
return nil, fmt.Errorf("invalid format for user ident `%s`", identUser)
}
userID, err := strconv.ParseUint(parts[0], 10, 64)
if err != nil {
return nil, err
}
if ids[userID] {
return nil, fmt.Errorf("id already exists for user ident `%s`", identUser)
}
ids[userID] = true
user := basicUser{
User: model.NewUser(userID, strings.ToLower(parts[1])),
password: []byte(parts[2]),
}
users[user.Login] = user
}
return users, nil
}
func loadAuth(auth string) (map[uint64][]string, error) {
if len(auth) == 0 {
return nil, nil
}
users := make(map[uint64][]string)
for _, authUser := range strings.Split(auth, ",") {
parts := strings.Split(authUser, ":")
if len(parts) != 2 {
return nil, fmt.Errorf("invalid format of user auth `%s`", authUser)
}
userID, err := strconv.ParseUint(parts[0], 10, 64)
if err != nil {
return nil, err
}
users[userID] = strings.Split(parts[1], "|")
}
return users, nil
}