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package user
import (
"citrons.xyz/talk/server/object"
"citrons.xyz/talk/server/session"
"citrons.xyz/talk/server/validate"
"citrons.xyz/talk/proto"
bolt "go.etcd.io/bbolt"
"log"
)
type UserKind struct {
world *object.World
db *bolt.DB
}
type User struct {
kind *UserKind
name string
id string
status string
description string
Stream session.Stream
PrivateStream session.Stream
anonymous bool
}
func Kind(world *object.World) *UserKind {
return &UserKind {world, world.DB()}
}
func (us *UserKind) CreateUser(name string) (*User, *proto.Fail) {
if us.ByName(name) != nil {
return nil, &proto.Fail {
"name-taken", "", map[string]string {"": name},
}
}
if !validate.Name(name) {
return nil, &proto.Fail {
"invalid-name", "", map[string]string {"": name},
}
}
var u User
u.kind = us
u.name = name
u.id = proto.GenId()
u.anonymous = true
u.Save()
return &u, nil
}
func (us *UserKind) ByName(name string) *User {
switch u := us.world.Lookup("u", name).(type) {
case *User:
return u
default:
return nil
}
}
func (us *UserKind) DeleteAnonUsers() {
var anon []string
err := us.db.View(func(tx *bolt.Tx) error {
bucket := tx.Bucket([]byte("anonymous users"))
if bucket == nil {
return nil
}
bucket.ForEach(func(k, v []byte) error {
anon = append(anon, string(k))
return nil
})
return nil
})
if err != nil {
log.Fatal("error reading database: ", err)
}
for _, id := range anon {
switch u := us.world.GetObject(id).(type) {
case *User:
u.Delete()
}
}
}
func (us *UserKind) Undata(o proto.Object) object.Object {
var u User
u.kind = us
u.id = o.Id
u.name = o.Fields[""]
u.status = o.Fields["status"]
u.description = o.Fields["description"]
u.anonymous = o.Fields["anonymous"] == "yes"
return &u
}
func (u *User) Data() proto.Object {
data := u.InfoFor("")
data.Fields["description"] = u.description
return data
}
func (u *User) Name() string {
return u.name
}
func (u *User) Handle() string {
return u.Name()
}
func (u *User) Id() string {
return u.id
}
func (u *User) Save() {
err := u.kind.db.Update(func(tx *bolt.Tx) error {
bucket, _ := tx.CreateBucketIfNotExists([]byte("anonymous users"))
if u.anonymous {
bucket.Put([]byte(u.id), []byte("yes"))
} else {
bucket.Delete([]byte(u.id))
}
return nil
})
if err != nil {
log.Fatal("error updating database: ", err)
}
u.kind.world.PutObject(u.id, u)
}
func (u *User) Rename(name string) *proto.Fail {
if !validate.Name(name) {
return &proto.Fail {
"invalid-name", "", map[string]string {"": name},
}
}
if u.kind.ByName(name) != nil &&
validate.Fold(name) != validate.Fold(u.name) {
return &proto.Fail {
"name-taken", "", map[string]string {"": name},
}
}
u.name = name
u.Save()
return nil
}
func (u *User) Delete() {
u.Stream.Event(proto.NewCmd("delete", u.id))
u.Stream.UnsubscribeAll()
gone := object.Tombstone {
u.id, map[string]string {"": u.name, "kind": "u"},
}
u.kind.world.PutObject(u.id, gone)
err := u.kind.db.Update(func(tx *bolt.Tx) error {
anons, _ := tx.CreateBucketIfNotExists([]byte("anonymous users"))
anons.Delete([]byte(u.id))
channels, _ := tx.CreateBucketIfNotExists([]byte("user channels"))
channels.DeleteBucket([]byte(u.id))
return nil
})
if err != nil {
log.Fatal("error updating database: ", err)
}
}
func (u *User) InfoFor(uid string) proto.Object {
i := map[string]string {"": u.name}
if u.status != "" {
i["status"] = u.status
}
if u.anonymous {
i["anonymous"] = "yes"
} else {
i["anonymous"] = "no"
}
return proto.Object {"u", u.id, i}
}
func (u *User) IsAnonymous() bool {
return u.anonymous
}
|
