// replyTopicDescBasic loads minimal topic Desc when the requester is not subscribed to the topic
func replyTopicDescBasic(sess *Session, topic string, get *MsgClientGet) {
log.Printf("hub.replyTopicDescBasic: topic %s", topic)
now := time.Now().UTC().Round(time.Millisecond)
desc := &MsgTopicDesc{}
if strings.HasPrefix(topic, "grp") {
stopic, err := store.Topics.Get(topic)
if err == nil {
desc.CreatedAt = &stopic.CreatedAt
desc.UpdatedAt = &stopic.UpdatedAt
desc.Public = stopic.Public
} else {
sess.queueOut(ErrUnknown(get.Id, get.Topic, now))
return
}
} else {
// 'me' and p2p topics
var uid types.Uid
if strings.HasPrefix(topic, "usr") {
// User specified as usrXXX
uid = types.ParseUserId(topic)
} else if strings.HasPrefix(topic, "p2p") {
// User specified as p2pXXXYYY
uid1, uid2, _ := types.ParseP2P(topic)
if uid1 == sess.uid {
uid = uid2
} else if uid2 == sess.uid {
uid = uid1
}
}
if uid.IsZero() {
sess.queueOut(ErrMalformed(get.Id, get.Topic, now))
return
}
suser, err := store.Users.Get(uid)
if err == nil {
desc.CreatedAt = &suser.CreatedAt
desc.UpdatedAt = &suser.UpdatedAt
desc.Public = suser.Public
} else {
log.Printf("hub.replyTopicInfoBasic: sending error 3")
sess.queueOut(ErrUnknown(get.Id, get.Topic, now))
return
}
}
log.Printf("hub.replyTopicDescBasic: sending desc -- OK")
sess.queueOut(&ServerComMessage{
Meta: &MsgServerMeta{Id: get.Id, Topic: get.Topic, Timestamp: &now, Desc: desc}})
}
// SubsForUser loads a list of user's subscriptions to topics
func (a *RethinkDbAdapter) SubsForUser(forUser t.Uid) ([]t.Subscription, error) {
if forUser.IsZero() {
return nil, errors.New("RethinkDb adapter: invalid user ID in TopicGetAll")
}
q := rdb.DB(a.dbName).Table("subscriptions").GetAllByIndex("User", forUser.String()).Limit(MAX_RESULTS)
rows, err := q.Run(a.conn)
if err != nil {
return nil, err
}
var subs []t.Subscription
var ss t.Subscription
for rows.Next(&ss) {
subs = append(subs, ss)
}
return subs, rows.Err()
}
// Create creates a topic and owner's subscription to topic
func (TopicsObjMapper) Create(topic *types.Topic, owner types.Uid, private interface{}) error {
topic.InitTimes()
err := adaptr.TopicCreate(topic)
if err != nil {
return err
}
if !owner.IsZero() {
err = Subs.Create(&types.Subscription{
ObjHeader: types.ObjHeader{CreatedAt: topic.CreatedAt},
User: owner.String(),
Topic: topic.Name,
ModeGiven: types.ModeFull,
ModeWant: topic.GetAccess(owner),
Private: private})
}
return err
}
// replySetSub is a response to new subscription request or an update to a subscription {set.sub}:
// update topic metadata cache, save/update subs, reply to the caller as {ctrl} message, generate an invite
func (t *Topic) replySetSub(h *Hub, sess *Session, set *MsgClientSet) error {
now := time.Now().UTC().Round(time.Millisecond)
var uid types.Uid
if uid = types.ParseUserId(set.Sub.User); uid.IsZero() && set.Sub.User != "" {
// Invalid user ID
sess.queueOut(ErrMalformed(set.Id, set.Topic, now))
return errors.New("invalid user id")
}
// if set.User is not set, request is for the current user
if !uid.IsZero() {
uid = sess.uid
}
if uid == sess.uid {
return t.requestSub(h, sess, set.Id, set.Sub.Mode, set.Sub.Info, nil, false)
} else {
return t.approveSub(h, sess, uid, set)
}
}
// Authenticate
func (s *Session) login(msg *ClientComMessage) {
var uid types.Uid
var err error
if !s.uid.IsZero() {
s.QueueOut(ErrAlreadyAuthenticated(msg.Login.Id, "", msg.timestamp))
return
} else if msg.Login.Scheme == "" || msg.Login.Scheme == "basic" {
uid, err = store.Users.Login(msg.Login.Scheme, msg.Login.Secret)
if err != nil {
// DB error
log.Println(err)
s.QueueOut(ErrUnknown(msg.Login.Id, "", msg.timestamp))
return
} else if uid.IsZero() {
// Invalid login or password
s.QueueOut(ErrAuthFailed(msg.Login.Id, "", msg.timestamp))
return
}
} else {
s.QueueOut(ErrAuthUnknownScheme(msg.Login.Id, "", msg.timestamp))
return
}
s.uid = uid
s.userAgent = msg.Login.UserAgent
s.QueueOut(&ServerComMessage{Ctrl: &MsgServerCtrl{
Id: msg.Login.Id,
Code: http.StatusOK,
Text: http.StatusText(http.StatusOK),
Timestamp: msg.timestamp,
Params: map[string]interface{}{"uid": uid.UserId()}}})
}