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
|
// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package api
import (
"time"
"github.com/mattermost/platform/model"
"github.com/gorilla/websocket"
goi18n "github.com/nicksnyder/go-i18n/i18n"
)
const (
WRITE_WAIT = 10 * time.Second
PONG_WAIT = 60 * time.Second
PING_PERIOD = (PONG_WAIT * 9) / 10
MAX_SIZE = 512
REDIS_WAIT = 60 * time.Second
)
type WebConn struct {
WebSocket *websocket.Conn
Send chan model.WebSocketMessage
SessionToken string
UserId string
T goi18n.TranslateFunc
Locale string
hasPermissionsToChannel map[string]bool
hasPermissionsToTeam map[string]bool
}
func NewWebConn(c *Context, ws *websocket.Conn) *WebConn {
go SetStatusOnline(c.Session.UserId, c.Session.Id)
return &WebConn{
Send: make(chan model.WebSocketMessage, 64),
WebSocket: ws,
UserId: c.Session.UserId,
SessionToken: c.Session.Token,
T: c.T,
Locale: c.Locale,
hasPermissionsToChannel: make(map[string]bool),
hasPermissionsToTeam: make(map[string]bool),
}
}
func (c *WebConn) readPump() {
defer func() {
hub.Unregister(c)
c.WebSocket.Close()
}()
c.WebSocket.SetReadLimit(MAX_SIZE)
c.WebSocket.SetReadDeadline(time.Now().Add(PONG_WAIT))
c.WebSocket.SetPongHandler(func(string) error {
c.WebSocket.SetReadDeadline(time.Now().Add(PONG_WAIT))
go SetStatusAwayIfNeeded(c.UserId)
return nil
})
for {
var req model.WebSocketRequest
if err := c.WebSocket.ReadJSON(&req); err != nil {
return
} else {
BaseRoutes.WebSocket.ServeWebSocket(c, &req)
}
}
}
func (c *WebConn) writePump() {
ticker := time.NewTicker(PING_PERIOD)
defer func() {
ticker.Stop()
c.WebSocket.Close()
}()
for {
select {
case msg, ok := <-c.Send:
if !ok {
c.WebSocket.SetWriteDeadline(time.Now().Add(WRITE_WAIT))
c.WebSocket.WriteMessage(websocket.CloseMessage, []byte{})
return
}
c.WebSocket.SetWriteDeadline(time.Now().Add(WRITE_WAIT))
if err := c.WebSocket.WriteJSON(msg); err != nil {
return
}
case <-ticker.C:
c.WebSocket.SetWriteDeadline(time.Now().Add(WRITE_WAIT))
if err := c.WebSocket.WriteMessage(websocket.PingMessage, []byte{}); err != nil {
return
}
}
}
}
func (c *WebConn) InvalidateCache() {
c.hasPermissionsToChannel = make(map[string]bool)
c.hasPermissionsToTeam = make(map[string]bool)
}
func (c *WebConn) InvalidateCacheForChannel(channelId string) {
delete(c.hasPermissionsToChannel, channelId)
}
func (c *WebConn) HasPermissionsToTeam(teamId string) bool {
perm, ok := c.hasPermissionsToTeam[teamId]
if !ok {
session := GetSession(c.SessionToken)
if session == nil {
perm = false
c.hasPermissionsToTeam[teamId] = perm
} else {
member := session.GetTeamByTeamId(teamId)
if member != nil {
perm = true
c.hasPermissionsToTeam[teamId] = perm
} else {
perm = true
c.hasPermissionsToTeam[teamId] = perm
}
}
}
return perm
}
func (c *WebConn) HasPermissionsToChannel(channelId string) bool {
perm, ok := c.hasPermissionsToChannel[channelId]
if !ok {
if cresult := <-Srv.Store.Channel().CheckPermissionsToNoTeam(channelId, c.UserId); cresult.Err != nil {
perm = false
c.hasPermissionsToChannel[channelId] = perm
} else {
count := cresult.Data.(int64)
if count == 1 {
perm = true
c.hasPermissionsToChannel[channelId] = perm
} else {
perm = false
c.hasPermissionsToChannel[channelId] = perm
}
}
}
return perm
}
|
