forked from botlabs-gg/yagpdb
/
common.go
239 lines (188 loc) · 4.76 KB
/
common.go
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package common
//go:generate sqlboiler --no-hooks psql
import (
"database/sql"
"fmt"
stdlog "log"
"math/rand"
"net"
"net/http"
"os"
"strings"
"time"
"github.com/DataDog/datadog-go/statsd"
"github.com/jinzhu/gorm"
_ "github.com/jinzhu/gorm/dialects/postgres"
"github.com/jonas747/discordgo"
"github.com/jonas747/retryableredis"
"github.com/jonas747/yagpdb/common/basicredispool"
"github.com/sirupsen/logrus"
"github.com/volatiletech/sqlboiler/boil"
)
const (
VERSIONMAJOR = 1
VERSIONMINOR = 20
VERSIONPATCH = 5
)
var (
VERSIONNUMBER = fmt.Sprintf("%d.%d.%d", VERSIONMAJOR, VERSIONMINOR, VERSIONPATCH)
VERSION = VERSIONNUMBER
GORM *gorm.DB
PQ *sql.DB
RedisPool *basicredispool.Pool
BotSession *discordgo.Session
BotUser *discordgo.User
RedisPoolSize = 10
Statsd *statsd.Client
Testing = os.Getenv("YAGPDB_TESTING") != ""
CurrentRunCounter int64
NodeID string
// if your compile failed at this line, you're likely not compiling for 64bit, which is unsupported.
_ interface{} = ensure64bit
logger = GetFixedPrefixLogger("common")
)
// Initalizes all database connections, config loading and so on
func Init() error {
rand.Seed(time.Now().UnixNano())
stdlog.SetOutput(&STDLogProxy{})
stdlog.SetFlags(0)
if Testing {
logrus.SetLevel(logrus.DebugLevel)
}
err := LoadConfig()
if err != nil {
return err
}
err = setupGlobalDGoSession()
if err != nil {
return err
}
ConnectDatadog()
err = connectRedis(ConfRedis.GetString())
if err != nil {
return err
}
db := "yagpdb"
if ConfPQDB.GetString() != "" {
db = ConfPQDB.GetString()
}
err = connectDB(ConfPQHost.GetString(), ConfPQUsername.GetString(), ConfPQPassword.GetString(), db)
if err != nil {
panic(err)
}
logger.Info("Retrieving bot info....")
BotUser, err = BotSession.UserMe()
if err != nil {
panic(err)
}
BotSession.State.User = &discordgo.SelfUser{
User: BotUser,
}
err = RedisPool.Do(retryableredis.Cmd(&CurrentRunCounter, "INCR", "yagpdb_run_counter"))
if err != nil {
panic(err)
}
logger.Info("Initializing core schema")
InitSchemas("core_configs", CoreServerConfDBSchema)
return err
}
func GetBotToken() string {
token := ConfBotToken.GetString()
if !strings.HasPrefix(token, "Bot ") {
token = "Bot " + token
}
return token
}
func setupGlobalDGoSession() (err error) {
BotSession, err = discordgo.New(GetBotToken())
if err != nil {
return err
}
maxCCReqs := ConfMaxCCR.GetInt()
if maxCCReqs < 1 {
maxCCReqs = 25
}
logger.Info("max ccr set to: ", maxCCReqs)
BotSession.MaxRestRetries = 10
BotSession.Ratelimiter.MaxConcurrentRequests = maxCCReqs
innerTransport := &http.Transport{
Proxy: http.ProxyFromEnvironment,
DialContext: (&net.Dialer{
Timeout: 10 * time.Second,
KeepAlive: 10 * time.Second,
DualStack: true,
}).DialContext,
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
MaxIdleConnsPerHost: maxCCReqs,
TLSHandshakeTimeout: 5 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
if ConfDisableKeepalives.GetBool() {
innerTransport.DisableKeepAlives = true
logger.Info("Keep alive connections to REST api for discord is disabled, may cause overhead")
}
BotSession.Client.Transport = &LoggingTransport{Inner: innerTransport}
return nil
}
func ConnectDatadog() {
if ConfDogStatsdAddress.GetString() == "" {
logger.Warn("No datadog info provided, not connecting to datadog aggregator")
return
}
client, err := statsd.New(ConfDogStatsdAddress.GetString())
if err != nil {
logger.WithError(err).Error("Failed connecting to dogstatsd, datadog integration disabled")
return
}
if NodeID != "" {
client.Tags = append(client.Tags, "node:"+NodeID)
}
Statsd = client
}
func InitTest() {
testDB := os.Getenv("YAGPDB_TEST_DB")
if testDB == "" {
return
}
err := connectDB("localhost", "postgres", "123", testDB)
if err != nil {
panic(err)
}
}
func connectRedis(addr string) (err error) {
RedisPool, err = basicredispool.NewPool(RedisPoolSize, &retryableredis.DialConfig{
Network: "tcp",
Addr: addr,
OnReconnect: func(err error) {
if err == nil {
return
}
logrus.WithError(err).Warn("[core] redis reconnect triggered")
if Statsd != nil {
Statsd.Incr("yagpdb.redis.reconnects", nil, 1)
}
},
OnRetry: func(err error) {
logrus.WithError(err).Warn("[core] redis retrying failed action")
if Statsd != nil {
Statsd.Incr("yagpdb.redis.retries", nil, 1)
}
},
})
return
}
func connectDB(host, user, pass, dbName string) error {
if host == "" {
host = "localhost"
}
db, err := gorm.Open("postgres", fmt.Sprintf("host=%s user=%s dbname=%s sslmode=disable password='%s'", host, user, dbName, pass))
GORM = db
PQ = db.DB()
boil.SetDB(PQ)
if err == nil {
PQ.SetMaxOpenConns(3)
}
GORM.SetLogger(&GORMLogger{})
return err
}