94 lines
3.1 KiB
Go
94 lines
3.1 KiB
Go
/*
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* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package service
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import (
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"fmt"
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lru "github.com/hashicorp/golang-lru"
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"net/http"
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"net/url"
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"yggdrasil-go/model"
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"yggdrasil-go/util"
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)
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type SessionService interface {
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JoinServer(accessToken string, serverId string, selectedProfile string, ip string) error
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HasJoinedServer(serverId string, username string, ip string, textureBaseUrl string) (map[string]interface{}, error)
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}
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type sessionStore struct {
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sessionCache *lru.Cache
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tokenService TokenService
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}
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func NewSessionService(service TokenService) SessionService {
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cache, _ := lru.New(100000)
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store := sessionStore{
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sessionCache: cache,
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tokenService: service,
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}
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return &store
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}
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func (s *sessionStore) JoinServer(accessToken string, serverId string, selectedProfile string, ip string) error {
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token, ok := s.tokenService.GetToken(accessToken)
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if ok {
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if token.GetAvailableLevel() != model.Valid ||
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util.UnsignedString(token.SelectedProfile.Id) != selectedProfile {
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return util.NewForbiddenOperationError(util.MessageInvalidToken)
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}
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session := model.NewAuthenticationSession(serverId, token, ip)
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s.sessionCache.Add(serverId, &session)
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} else {
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data := map[string]string{
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"accessToken": accessToken,
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"selectedProfile": selectedProfile,
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"serverId": serverId,
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}
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err := util.PostObjectForError("https://sessionserver.mojang.com/session/minecraft/join", data)
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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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return nil
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}
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func (s *sessionStore) HasJoinedServer(serverId string, username string, ip string, textureBaseUrl string) (map[string]interface{}, error) {
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if value, ok := s.sessionCache.Get(serverId); ok {
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if session, ok := value.(*model.AuthenticationSession); ok {
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if !(session.HasExpired() && s.sessionCache.Remove(serverId)) &&
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(ip == "" || ip == session.Ip) && (session.Token.SelectedProfile.Name == username) {
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return session.Token.SelectedProfile.ToCompleteResponse(true, textureBaseUrl)
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}
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}
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} else {
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m := make(map[string]interface{})
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includeIp := ""
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if ip != "" {
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includeIp = "&ip=" + url.QueryEscape(ip)
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}
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err := util.GetObject(fmt.Sprintf("https://sessionserver.mojang.com/session/minecraft/hasJoined?username=%s&serverId=%s%s", url.QueryEscape(username), url.QueryEscape(serverId), includeIp), &m)
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if err != nil {
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return nil, err
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} else {
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return m, nil
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}
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}
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return nil, util.YggdrasilError{Status: http.StatusNoContent}
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}
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