forked from centrifugal/centrifugo
/
main.go
328 lines (293 loc) · 11 KB
/
main.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
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
package main
import (
"fmt"
"net/http"
"os"
"os/signal"
"runtime"
"strings"
"syscall"
"time"
"github.com/centrifugal/centrifugo/Godeps/_workspace/src/github.com/spf13/cobra"
"github.com/centrifugal/centrifugo/Godeps/_workspace/src/github.com/spf13/viper"
"github.com/centrifugal/centrifugo/libcentrifugo"
"github.com/centrifugal/centrifugo/libcentrifugo/logger"
)
const (
VERSION = "0.2.4"
)
var configFile string
func setupLogging() {
logLevel, ok := logger.LevelMatches[strings.ToUpper(viper.GetString("log_level"))]
if !ok {
logLevel = logger.LevelInfo
}
logger.SetLogThreshold(logLevel)
logger.SetStdoutThreshold(logLevel)
if viper.IsSet("log_file") && viper.GetString("log_file") != "" {
logger.SetLogFile(viper.GetString("log_file"))
// do not log into stdout when log file provided
logger.SetStdoutThreshold(logger.LevelNone)
}
}
func handleSignals(app *libcentrifugo.Application) {
sigc := make(chan os.Signal, 1)
signal.Notify(sigc, syscall.SIGHUP, syscall.SIGINT, os.Interrupt)
for {
sig := <-sigc
logger.INFO.Println("Signal received:", sig)
switch sig {
case syscall.SIGHUP:
// reload application configuration on SIGHUP
logger.INFO.Println("Reloading configuration")
err := viper.ReadInConfig()
if err != nil {
switch err.(type) {
case viper.ConfigParseError:
logger.CRITICAL.Printf("Error parsing configuration: %s\n", err)
continue
default:
logger.CRITICAL.Println("Unable to locate config file")
continue
}
}
setupLogging()
c := newConfig()
s := structureFromConfig(nil)
app.SetConfig(c)
app.SetStructure(s)
logger.INFO.Println("Configuration successfully reloaded")
case syscall.SIGINT, os.Interrupt:
logger.INFO.Println("Shutting down")
go time.AfterFunc(5*time.Second, func() {
os.Exit(1)
})
app.Shutdown()
os.Exit(130)
}
}
}
// Main runs Centrifugo as a service.
func Main() {
var port string
var address string
var debug bool
var name string
var web string
var engn string
var logLevel string
var logFile string
var insecure bool
var useSSL bool
var sslCert string
var sslKey string
var redisHost string
var redisPort string
var redisPassword string
var redisDB string
var redisURL string
var redisAPI bool
var redisPool int
var rootCmd = &cobra.Command{
Use: "",
Short: "Centrifugo",
Long: "Centrifuge + GO = Centrifugo – harder, better, faster, stronger",
Run: func(cmd *cobra.Command, args []string) {
viper.SetDefault("gomaxprocs", 0)
viper.SetDefault("prefix", "")
viper.SetDefault("web_password", "")
viper.SetDefault("web_secret", "")
viper.RegisterAlias("cookie_secret", "web_secret")
viper.SetDefault("max_channel_length", 255)
viper.SetDefault("channel_prefix", "centrifugo")
viper.SetDefault("node_ping_interval", 5)
viper.SetDefault("message_send_timeout", 60)
viper.SetDefault("expired_connection_close_delay", 10)
viper.SetDefault("presence_ping_interval", 25)
viper.SetDefault("presence_expire_interval", 60)
viper.SetDefault("private_channel_prefix", "$")
viper.SetDefault("namespace_channel_boundary", ":")
viper.SetDefault("user_channel_boundary", "#")
viper.SetDefault("user_channel_separator", ",")
viper.SetDefault("client_channel_boundary", "&")
viper.SetDefault("sockjs_url", "https://cdn.jsdelivr.net/sockjs/1.0/sockjs.min.js")
viper.SetDefault("project_name", "")
viper.SetDefault("project_secret", "")
viper.SetDefault("project_connection_lifetime", false)
viper.SetDefault("project_watch", false)
viper.SetDefault("project_publish", false)
viper.SetDefault("project_anonymous", false)
viper.SetDefault("project_presence", false)
viper.SetDefault("project_history_size", 0)
viper.SetDefault("project_history_lifetime", 0)
viper.SetDefault("project_namespaces", "")
viper.SetEnvPrefix("centrifugo")
viper.BindEnv("engine")
viper.BindEnv("insecure")
viper.BindEnv("web_password")
viper.BindEnv("web_secret")
viper.BindEnv("project_name")
viper.BindEnv("project_secret")
viper.BindEnv("project_connection_lifetime")
viper.BindEnv("project_watch")
viper.BindEnv("project_publish")
viper.BindEnv("project_anonymous")
viper.BindEnv("project_join_leave")
viper.BindEnv("project_presence")
viper.BindEnv("project_history_size")
viper.BindEnv("project_history_lifetime")
viper.BindPFlag("port", cmd.Flags().Lookup("port"))
viper.BindPFlag("address", cmd.Flags().Lookup("address"))
viper.BindPFlag("debug", cmd.Flags().Lookup("debug"))
viper.BindPFlag("name", cmd.Flags().Lookup("name"))
viper.BindPFlag("web", cmd.Flags().Lookup("web"))
viper.BindPFlag("engine", cmd.Flags().Lookup("engine"))
viper.BindPFlag("insecure", cmd.Flags().Lookup("insecure"))
viper.BindPFlag("ssl", cmd.Flags().Lookup("ssl"))
viper.BindPFlag("ssl_cert", cmd.Flags().Lookup("ssl_cert"))
viper.BindPFlag("ssl_key", cmd.Flags().Lookup("ssl_key"))
viper.BindPFlag("log_level", cmd.Flags().Lookup("log_level"))
viper.BindPFlag("log_file", cmd.Flags().Lookup("log_file"))
viper.BindPFlag("redis_host", cmd.Flags().Lookup("redis_host"))
viper.BindPFlag("redis_port", cmd.Flags().Lookup("redis_port"))
viper.BindPFlag("redis_password", cmd.Flags().Lookup("redis_password"))
viper.BindPFlag("redis_db", cmd.Flags().Lookup("redis_db"))
viper.BindPFlag("redis_url", cmd.Flags().Lookup("redis_url"))
viper.BindPFlag("redis_api", cmd.Flags().Lookup("redis_api"))
viper.BindPFlag("redis_pool", cmd.Flags().Lookup("redis_pool"))
err := validateConfig(configFile)
if err != nil {
logger.FATAL.Fatalln(err)
}
viper.SetConfigFile(configFile)
err = viper.ReadInConfig()
if err != nil {
logger.FATAL.Fatalln("Unable to locate config file")
}
setupLogging()
if os.Getenv("GOMAXPROCS") == "" {
if viper.IsSet("gomaxprocs") && viper.GetInt("gomaxprocs") > 0 {
runtime.GOMAXPROCS(viper.GetInt("gomaxprocs"))
} else {
runtime.GOMAXPROCS(runtime.NumCPU())
}
}
logger.INFO.Println("GOMAXPROCS set to", runtime.GOMAXPROCS(0))
logger.INFO.Println("Using config file:", viper.ConfigFileUsed())
c := newConfig()
s := structureFromConfig(nil)
app, err := libcentrifugo.NewApplication(c)
if err != nil {
logger.FATAL.Fatalln(err)
}
app.SetStructure(s)
var e libcentrifugo.Engine
switch viper.GetString("engine") {
case "memory":
e = libcentrifugo.NewMemoryEngine(app)
case "redis":
e = libcentrifugo.NewRedisEngine(
app,
viper.GetString("redis_host"),
viper.GetString("redis_port"),
viper.GetString("redis_password"),
viper.GetString("redis_db"),
viper.GetString("redis_url"),
viper.GetBool("redis_api"),
viper.GetInt("redis_pool"),
)
default:
logger.FATAL.Fatalln("unknown engine: " + viper.GetString("engine"))
}
logger.INFO.Println("Engine:", viper.GetString("engine"))
logger.DEBUG.Printf("%v\n", viper.AllSettings())
logger.INFO.Println("Use SSL:", viper.GetBool("ssl"))
if viper.GetBool("ssl") {
if viper.GetString("ssl_cert") == "" {
logger.FATAL.Println("No SSL certificate provided")
os.Exit(1)
}
if viper.GetString("ssl_key") == "" {
logger.FATAL.Println("No SSL certificate key provided")
os.Exit(1)
}
}
app.SetEngine(e)
app.Run()
go handleSignals(app)
mux := libcentrifugo.DefaultMux(app, viper.GetString("prefix"), viper.GetString("web"), viper.GetString("sockjs_url"))
addr := viper.GetString("address") + ":" + viper.GetString("port")
logger.INFO.Printf("Start serving on %s\n", addr)
if useSSL {
if err := http.ListenAndServeTLS(addr, sslCert, sslKey, mux); err != nil {
logger.FATAL.Fatalln("ListenAndServe:", err)
}
} else {
if err := http.ListenAndServe(addr, mux); err != nil {
logger.FATAL.Fatalln("ListenAndServe:", err)
}
}
},
}
rootCmd.Flags().StringVarP(&port, "port", "p", "8000", "port to bind to")
rootCmd.Flags().StringVarP(&address, "address", "a", "", "address to listen on")
rootCmd.Flags().BoolVarP(&debug, "debug", "d", false, "debug mode - please, do not use it in production")
rootCmd.Flags().StringVarP(&configFile, "config", "c", "config.json", "path to config file")
rootCmd.Flags().StringVarP(&name, "name", "n", "", "unique node name")
rootCmd.Flags().StringVarP(&web, "web", "w", "", "optional path to web interface application")
rootCmd.Flags().StringVarP(&engn, "engine", "e", "memory", "engine to use: memory or redis")
rootCmd.Flags().BoolVarP(&insecure, "insecure", "", false, "start in insecure mode")
rootCmd.Flags().BoolVarP(&useSSL, "ssl", "", false, "accept SSL connections. This requires an X509 certificate and a key file")
rootCmd.Flags().StringVarP(&sslCert, "ssl_cert", "", "", "path to an X509 certificate file")
rootCmd.Flags().StringVarP(&sslKey, "ssl_key", "", "", "path to an X509 certificate key")
rootCmd.Flags().StringVarP(&logLevel, "log_level", "", "info", "set the log level: debug, info, error, critical, fatal or none")
rootCmd.Flags().StringVarP(&logFile, "log_file", "", "", "optional log file - if not specified all logs go to STDOUT")
rootCmd.Flags().StringVarP(&redisHost, "redis_host", "", "127.0.0.1", "redis host (Redis engine)")
rootCmd.Flags().StringVarP(&redisPort, "redis_port", "", "6379", "redis port (Redis engine)")
rootCmd.Flags().StringVarP(&redisPassword, "redis_password", "", "", "redis auth password (Redis engine)")
rootCmd.Flags().StringVarP(&redisDB, "redis_db", "", "0", "redis database (Redis engine)")
rootCmd.Flags().StringVarP(&redisURL, "redis_url", "", "", "redis connection URL (Redis engine)")
rootCmd.Flags().BoolVarP(&redisAPI, "redis_api", "", false, "enable Redis API listener (Redis engine)")
rootCmd.Flags().IntVarP(&redisPool, "redis_pool", "", 256, "Redis pool size (Redis engine)")
var versionCmd = &cobra.Command{
Use: "version",
Short: "Centrifugo version number",
Long: `Print the version number of Centrifugo`,
Run: func(cmd *cobra.Command, args []string) {
fmt.Printf("Centrifugo v%s\n", VERSION)
},
}
var checkConfigFile string
var checkConfigCmd = &cobra.Command{
Use: "checkconfig",
Short: "Check configuration file",
Long: `Check Centrifugo configuration file`,
Run: func(cmd *cobra.Command, args []string) {
err := validateConfig(checkConfigFile)
if err != nil {
logger.FATAL.Fatalln(err)
}
},
}
checkConfigCmd.Flags().StringVarP(&checkConfigFile, "config", "c", "config.json", "path to config file to check")
var outputConfigFile string
var generateConfigCmd = &cobra.Command{
Use: "genconfig",
Short: "Generate simple configuration file to start with",
Long: `Generate simple configuration file to start with`,
Run: func(cmd *cobra.Command, args []string) {
err := generateConfig(outputConfigFile)
if err != nil {
logger.FATAL.Fatalln(err)
}
},
}
generateConfigCmd.Flags().StringVarP(&outputConfigFile, "config", "c", "config.json", "path to output config file")
rootCmd.AddCommand(versionCmd)
rootCmd.AddCommand(checkConfigCmd)
rootCmd.AddCommand(generateConfigCmd)
rootCmd.Execute()
}
func main() {
Main()
}