-
Notifications
You must be signed in to change notification settings - Fork 245
/
client.go
231 lines (189 loc) · 5.47 KB
/
client.go
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
230
231
package anonmetrics
import (
"context"
"crypto/ecdsa"
"errors"
"sync"
"time"
"github.com/golang/protobuf/proto"
"go.uber.org/zap"
"github.com/status-im/status-go/appmetrics"
"github.com/status-im/status-go/eth-node/crypto"
"github.com/status-im/status-go/protocol/common"
"github.com/status-im/status-go/protocol/protobuf"
)
const ActiveClientPhrase = "yes i am wanting the activation of the anon metrics client, please thank you lots thank you"
type ClientConfig struct {
ShouldSend bool
SendAddress *ecdsa.PublicKey
Active string
}
type Client struct {
Config *ClientConfig
DB *appmetrics.Database
Identity *ecdsa.PrivateKey
Logger *zap.Logger
//messageSender is a message processor used to send metric batch messages
messageSender *common.MessageSender
IntervalInc *FibonacciIntervalIncrementer
// mainLoopQuit is a channel that concurrently orchestrates that the main loop that should be terminated
mainLoopQuit chan struct{}
// deleteLoopQuit is a channel that concurrently orchestrates that the delete loop that should be terminated
deleteLoopQuit chan struct{}
// DBLock prevents deletion of DB items during mainloop
DBLock sync.Mutex
}
func NewClient(sender *common.MessageSender) *Client {
return &Client{
messageSender: sender,
IntervalInc: &FibonacciIntervalIncrementer{
Last: 0,
Current: 1,
},
}
}
func (c *Client) sendUnprocessedMetrics() {
if c.Config.Active != ActiveClientPhrase {
return
}
c.Logger.Debug("sendUnprocessedMetrics() triggered")
c.DBLock.Lock()
defer c.DBLock.Unlock()
// Get all unsent metrics grouped by session id
uam, err := c.DB.GetUnprocessedGroupedBySession()
if err != nil {
c.Logger.Error("failed to get unprocessed messages grouped by session", zap.Error(err))
}
c.Logger.Debug("unprocessed metrics from db", zap.Reflect("uam", uam))
for session, batch := range uam {
c.Logger.Debug("processing uam from session", zap.String("session", session))
// Convert the metrics into protobuf
amb, err := adaptModelsToProtoBatch(batch, &c.Identity.PublicKey)
if err != nil {
c.Logger.Error("failed to adapt models to protobuf batch", zap.Error(err))
return
}
// Generate an ephemeral key per session id
ephemeralKey, err := crypto.GenerateKey()
if err != nil {
c.Logger.Error("failed to generate an ephemeral key", zap.Error(err))
return
}
// Prepare the protobuf message
encodedMessage, err := proto.Marshal(amb)
if err != nil {
c.Logger.Error("failed to marshal protobuf", zap.Error(err))
return
}
rawMessage := common.RawMessage{
Payload: encodedMessage,
Sender: ephemeralKey,
SkipProtocolLayer: true,
SendOnPersonalTopic: true,
MessageType: protobuf.ApplicationMetadataMessage_ANONYMOUS_METRIC_BATCH,
}
c.Logger.Debug("rawMessage prepared from unprocessed anonymous metrics", zap.Reflect("rawMessage", rawMessage))
// Send the metrics batch
_, err = c.messageSender.SendPrivate(context.Background(), c.Config.SendAddress, &rawMessage)
if err != nil {
c.Logger.Error("failed to send metrics batch message", zap.Error(err))
return
}
// Mark metrics as processed
err = c.DB.SetToProcessed(batch)
if err != nil {
c.Logger.Error("failed to set metrics as processed in db", zap.Error(err))
}
}
}
func (c *Client) mainLoop() error {
if c.Config.Active != ActiveClientPhrase {
return nil
}
c.Logger.Debug("mainLoop() triggered")
for {
c.sendUnprocessedMetrics()
waitFor := time.Duration(c.IntervalInc.Next()) * time.Second
c.Logger.Debug("mainLoop() wait interval set", zap.Duration("waitFor", waitFor))
select {
case <-time.After(waitFor):
case <-c.mainLoopQuit:
return nil
}
}
}
func (c *Client) startMainLoop() {
if c.Config.Active != ActiveClientPhrase {
return
}
c.Logger.Debug("startMainLoop() triggered")
c.stopMainLoop()
c.mainLoopQuit = make(chan struct{})
go func() {
c.Logger.Debug("startMainLoop() anonymous go routine triggered")
err := c.mainLoop()
if err != nil {
c.Logger.Error("main loop exited with an error", zap.Error(err))
}
}()
}
func (c *Client) deleteLoop() error {
// Sleep to give the main lock time to process any old messages
time.Sleep(time.Second * 10)
for {
func() {
c.DBLock.Lock()
defer c.DBLock.Unlock()
oneWeekAgo := time.Now().Add(time.Hour * 24 * 7 * -1)
err := c.DB.DeleteOlderThan(&oneWeekAgo)
if err != nil {
c.Logger.Error("failed to delete metrics older than given time",
zap.Time("time given", oneWeekAgo),
zap.Error(err))
}
}()
select {
case <-time.After(time.Hour):
case <-c.deleteLoopQuit:
return nil
}
}
}
func (c *Client) startDeleteLoop() {
c.stopDeleteLoop()
c.deleteLoopQuit = make(chan struct{})
go func() {
err := c.deleteLoop()
if err != nil {
c.Logger.Error("delete loop exited with an error", zap.Error(err))
}
}()
}
func (c *Client) Start() error {
c.Logger.Debug("Main Start() triggered")
if c.messageSender == nil {
return errors.New("can't start, missing message processor")
}
c.startMainLoop()
c.startDeleteLoop()
return nil
}
func (c *Client) stopMainLoop() {
c.Logger.Debug("stopMainLoop() triggered")
if c.mainLoopQuit != nil {
c.Logger.Debug("mainLoopQuit not set, attempting to close")
close(c.mainLoopQuit)
c.mainLoopQuit = nil
}
}
func (c *Client) stopDeleteLoop() {
if c.deleteLoopQuit != nil {
close(c.deleteLoopQuit)
c.deleteLoopQuit = nil
}
}
func (c *Client) Stop() error {
c.stopMainLoop()
c.stopDeleteLoop()
return nil
}