1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
package user
import (
"citrons.xyz/talk/server/object"
"citrons.xyz/talk/server/session"
"citrons.xyz/talk/server/passwords"
"citrons.xyz/talk/proto/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) {
existing := us.ByName(name)
if existing != nil {
anon := "no"
if existing.anonymous {
anon = "yes"
}
return nil, &proto.Fail {
"name-taken", "", map[string]string {
"": name, "anonymous": anon, "id": existing.Id(),
},
}
}
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))
auth, _ := tx.CreateBucketIfNotExists([]byte("auth"))
auth.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
}
func (u *User) CheckPassword(password string) bool {
var hash []byte
err := u.kind.db.View(func(tx *bolt.Tx) error {
auth := tx.Bucket([]byte("auth"))
if auth == nil {
return nil
}
userData := auth.Bucket([]byte(u.id))
if userData == nil {
return nil
}
hash = userData.Get([]byte("password hash"))
return nil
})
if err != nil {
log.Fatal("error reading database: ", err)
}
if hash == nil {
return false
}
return passwords.Check(password, hash)
}
func (u *User) SetPassword(password string) {
err := u.kind.db.Update(func(tx *bolt.Tx) error {
auth, _ := tx.CreateBucketIfNotExists([]byte("auth"))
userData, _ := auth.CreateBucketIfNotExists([]byte(u.id))
userData.Put([]byte("password hash"), passwords.Hash(password))
return nil
})
if err != nil {
log.Fatal("error updating database: ", err)
}
u.anonymous = false
u.Save()
}
|
