61 lines
1.3 KiB
Go
61 lines
1.3 KiB
Go
package auth
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import (
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"errors"
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"github.com/labstack/echo-contrib/session"
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"github.com/labstack/echo/v4"
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"golang.org/x/crypto/bcrypt"
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)
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const (
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sessionName = "ua"
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sessionKeyUserID = "user_id"
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sessionKeyAuthenticated = "authenticated"
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)
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func Login(c echo.Context, userID int) error {
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sess, err := session.Get(sessionName, c)
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if err != nil {
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return err
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}
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sess.Values[sessionKeyUserID] = userID
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sess.Values[sessionKeyAuthenticated] = true
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// TODO: max age?
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return sess.Save(c.Request(), c.Response())
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}
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func Logout(c echo.Context) error {
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sess, err := session.Get(sessionName, c)
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if err != nil {
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return err
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}
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sess.Values[sessionKeyAuthenticated] = false
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return sess.Save(c.Request(), c.Response())
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}
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func GetUserID(c echo.Context) (int, error) {
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sess, err := session.Get(sessionName, c)
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if err != nil {
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return 0, err
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}
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if sess.Values[sessionKeyAuthenticated] == true {
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return sess.Values[sessionKeyUserID].(int), nil
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}
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return 0, errors.New("user not authenticated")
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}
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func HashPassword(password string) (string, error) {
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hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
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if err != nil {
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return "", err
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}
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return string(hash), nil
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}
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func CheckPassword(password, hash string) error {
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return bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
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}
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