mirror of https://github.com/muety/wakapi.git
110 lines
2.8 KiB
Go
110 lines
2.8 KiB
Go
package middlewares
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import (
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"context"
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"errors"
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"fmt"
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"github.com/emvi/logbuch"
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conf "github.com/muety/wakapi/config"
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"github.com/muety/wakapi/models"
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"github.com/muety/wakapi/services"
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"github.com/muety/wakapi/utils"
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"net/http"
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"strings"
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)
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type AuthenticateMiddleware struct {
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config *conf.Config
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userSrvc services.IUserService
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whitelistPaths []string
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}
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func NewAuthenticateMiddleware(userService services.IUserService, whitelistPaths []string) *AuthenticateMiddleware {
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return &AuthenticateMiddleware{
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config: conf.Get(),
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userSrvc: userService,
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whitelistPaths: whitelistPaths,
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}
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}
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func (m *AuthenticateMiddleware) Handler(h http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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m.ServeHTTP(w, r, h.ServeHTTP)
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})
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}
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func (m *AuthenticateMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
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for _, p := range m.whitelistPaths {
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if strings.HasPrefix(r.URL.Path, p) || r.URL.Path == p {
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next(w, r)
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return
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}
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}
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var user *models.User
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user, err := m.tryGetUserByCookie(r)
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if err != nil {
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user, err = m.tryGetUserByApiKey(r)
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}
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if err != nil {
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if strings.HasPrefix(r.URL.Path, "/api") {
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w.WriteHeader(http.StatusUnauthorized)
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} else {
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http.SetCookie(w, m.config.GetClearCookie(models.AuthCookieKey, "/"))
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http.Redirect(w, r, fmt.Sprintf("%s/?error=unauthorized", m.config.Server.BasePath), http.StatusFound)
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}
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return
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}
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ctx := context.WithValue(r.Context(), models.UserKey, user)
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next(w, r.WithContext(ctx))
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}
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func (m *AuthenticateMiddleware) tryGetUserByApiKey(r *http.Request) (*models.User, error) {
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key, err := utils.ExtractBearerAuth(r)
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if err != nil {
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return nil, err
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}
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var user *models.User
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userKey := strings.TrimSpace(key)
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user, err = m.userSrvc.GetUserByKey(userKey)
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if err != nil {
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return nil, err
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}
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return user, nil
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}
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func (m *AuthenticateMiddleware) tryGetUserByCookie(r *http.Request) (*models.User, error) {
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login, err := utils.ExtractCookieAuth(r, m.config)
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if err != nil {
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return nil, err
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}
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user, err := m.userSrvc.GetUserById(login.Username)
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if err != nil {
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return nil, err
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}
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if !CheckAndMigratePassword(user, login, m.config.Security.PasswordSalt, &m.userSrvc) {
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return nil, errors.New("invalid password")
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}
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return user, nil
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}
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// migrate old md5-hashed passwords to new salted bcrypt hashes for backwards compatibility
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func CheckAndMigratePassword(user *models.User, login *models.Login, salt string, userServiceRef *services.IUserService) bool {
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if utils.IsMd5(user.Password) {
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if utils.CompareMd5(user.Password, login.Password, "") {
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logbuch.Info("migrating old md5 password to new bcrypt format for user '%s'", user.ID)
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(*userServiceRef).MigrateMd5Password(user, login)
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return true
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}
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return false
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}
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return utils.CompareBcrypt(user.Password, login.Password, salt)
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}
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