2018-06-11 13:13:19 +00:00
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package auth
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import (
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2018-07-23 04:57:38 +00:00
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"log"
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2018-06-11 13:13:19 +00:00
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"net/http"
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2018-07-24 06:49:17 +00:00
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"strings"
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2018-06-11 13:13:19 +00:00
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"github.com/asaskevich/govalidator"
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2018-09-10 10:01:38 +00:00
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httperror "github.com/portainer/libhttp/error"
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"github.com/portainer/libhttp/request"
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"github.com/portainer/libhttp/response"
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2018-06-11 13:13:19 +00:00
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"github.com/portainer/portainer"
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)
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type authenticatePayload struct {
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Username string
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Password string
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}
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type authenticateResponse struct {
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JWT string `json:"jwt"`
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}
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func (payload *authenticatePayload) Validate(r *http.Request) error {
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if govalidator.IsNull(payload.Username) {
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return portainer.Error("Invalid username")
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}
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if govalidator.IsNull(payload.Password) {
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return portainer.Error("Invalid password")
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}
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return nil
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}
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func (handler *Handler) authenticate(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
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if handler.authDisabled {
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return &httperror.HandlerError{http.StatusServiceUnavailable, "Cannot authenticate user. Portainer was started with the --no-auth flag", ErrAuthDisabled}
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}
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var payload authenticatePayload
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err := request.DecodeAndValidateJSONPayload(r, &payload)
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if err != nil {
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return &httperror.HandlerError{http.StatusBadRequest, "Invalid request payload", err}
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}
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2018-07-23 04:57:38 +00:00
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settings, err := handler.SettingsService.Settings()
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if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve settings from the database", err}
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}
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2018-06-11 13:13:19 +00:00
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u, err := handler.UserService.UserByUsername(payload.Username)
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2018-07-23 04:57:38 +00:00
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if err != nil && err != portainer.ErrObjectNotFound {
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2018-06-11 13:13:19 +00:00
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve a user with the specified username from the database", err}
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}
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2018-07-23 04:57:38 +00:00
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if err == portainer.ErrObjectNotFound && settings.AuthenticationMethod == portainer.AuthenticationInternal {
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return &httperror.HandlerError{http.StatusUnprocessableEntity, "Invalid credentials", portainer.ErrUnauthorized}
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2018-06-11 13:13:19 +00:00
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}
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2018-07-23 04:57:38 +00:00
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if settings.AuthenticationMethod == portainer.AuthenticationLDAP {
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2018-07-24 06:49:17 +00:00
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if u == nil && settings.LDAPSettings.AutoCreateUsers {
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2018-07-23 04:57:38 +00:00
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return handler.authenticateLDAPAndCreateUser(w, payload.Username, payload.Password, &settings.LDAPSettings)
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2018-07-24 06:49:17 +00:00
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} else if u == nil && !settings.LDAPSettings.AutoCreateUsers {
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return &httperror.HandlerError{http.StatusUnprocessableEntity, "Invalid credentials", portainer.ErrUnauthorized}
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2018-06-11 13:13:19 +00:00
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}
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return handler.authenticateLDAP(w, u, payload.Password, &settings.LDAPSettings)
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}
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return handler.authenticateInternal(w, u, payload.Password)
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}
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func (handler *Handler) authenticateLDAP(w http.ResponseWriter, user *portainer.User, password string, ldapSettings *portainer.LDAPSettings) *httperror.HandlerError {
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err := handler.LDAPService.AuthenticateUser(user.Username, password, ldapSettings)
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if err != nil {
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return handler.authenticateInternal(w, user, password)
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}
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err = handler.addUserIntoTeams(user, ldapSettings)
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if err != nil {
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log.Printf("Warning: unable to automatically add user into teams: %s\n", err.Error())
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}
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return handler.writeToken(w, user)
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}
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func (handler *Handler) authenticateInternal(w http.ResponseWriter, user *portainer.User, password string) *httperror.HandlerError {
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err := handler.CryptoService.CompareHashAndData(user.Password, password)
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if err != nil {
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return &httperror.HandlerError{http.StatusUnprocessableEntity, "Invalid credentials", portainer.ErrUnauthorized}
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}
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return handler.writeToken(w, user)
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}
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func (handler *Handler) authenticateLDAPAndCreateUser(w http.ResponseWriter, username, password string, ldapSettings *portainer.LDAPSettings) *httperror.HandlerError {
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err := handler.LDAPService.AuthenticateUser(username, password, ldapSettings)
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if err != nil {
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return &httperror.HandlerError{http.StatusUnprocessableEntity, "Invalid credentials", err}
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}
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user := &portainer.User{
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Username: username,
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Role: portainer.StandardUserRole,
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}
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err = handler.UserService.CreateUser(user)
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if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to persist user inside the database", err}
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}
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err = handler.addUserIntoTeams(user, ldapSettings)
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if err != nil {
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log.Printf("Warning: unable to automatically add user into teams: %s\n", err.Error())
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2018-06-11 13:13:19 +00:00
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}
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2018-07-23 04:57:38 +00:00
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return handler.writeToken(w, user)
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}
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func (handler *Handler) writeToken(w http.ResponseWriter, user *portainer.User) *httperror.HandlerError {
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2018-06-11 13:13:19 +00:00
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tokenData := &portainer.TokenData{
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2018-07-23 04:57:38 +00:00
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ID: user.ID,
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Username: user.Username,
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Role: user.Role,
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2018-06-11 13:13:19 +00:00
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}
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token, err := handler.JWTService.GenerateToken(tokenData)
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if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to generate JWT token", err}
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}
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return response.JSON(w, &authenticateResponse{JWT: token})
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}
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2018-07-23 04:57:38 +00:00
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func (handler *Handler) addUserIntoTeams(user *portainer.User, settings *portainer.LDAPSettings) error {
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teams, err := handler.TeamService.Teams()
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if err != nil {
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return err
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}
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userGroups, err := handler.LDAPService.GetUserGroups(user.Username, settings)
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if err != nil {
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return err
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}
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userMemberships, err := handler.TeamMembershipService.TeamMembershipsByUserID(user.ID)
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if err != nil {
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return err
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}
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for _, team := range teams {
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if teamExists(team.Name, userGroups) {
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if teamMembershipExists(team.ID, userMemberships) {
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continue
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}
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membership := &portainer.TeamMembership{
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UserID: user.ID,
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TeamID: team.ID,
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Role: portainer.TeamMember,
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}
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err := handler.TeamMembershipService.CreateTeamMembership(membership)
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if err != nil {
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return err
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}
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}
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}
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return nil
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}
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func teamExists(teamName string, ldapGroups []string) bool {
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for _, group := range ldapGroups {
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2018-07-24 06:49:17 +00:00
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if strings.ToLower(group) == strings.ToLower(teamName) {
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2018-07-23 04:57:38 +00:00
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return true
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}
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}
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return false
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}
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func teamMembershipExists(teamID portainer.TeamID, memberships []portainer.TeamMembership) bool {
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for _, membership := range memberships {
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if membership.TeamID == teamID {
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return true
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}
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}
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return false
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}
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