func CredHash(cred *credence.Cred) string {
statementCredBytes, err := proto.Marshal(cred)
if err != nil {
panic(err)
}
hash, err := openssl.SHA1(statementCredBytes)
if err != nil {
panic(err)
}
return hex.EncodeToString(hash[:])
}
func StartBroadcaster(wg sync.WaitGroup) {
defer wg.Done()
db := models.DB()
msgBytes := make([]byte, 524288) // 0.5 Mb
for {
_, err := receiver.Read(msgBytes)
if err != nil {
log.Print(err)
continue
}
hash, err := openssl.SHA1(msgBytes)
if err != nil {
panic(err)
}
messageHash := hex.EncodeToString(hash[:])
log.Println("Checking message", messageHash)
var previouslySent models.SentMessage
db.Where("message_hash = ? AND sent_at > ?", messageHash, time.Now().Add(-5*time.Minute)).First(&previouslySent)
if db.NewRecord(previouslySent.MessageHash) {
log.Println("Broadcasting message", messageHash)
_, err = broadcaster.Write(msgBytes)
if err != nil {
panic(err)
}
log.Println("Pitching message", messageHash)
_, err = pitcher.Write(msgBytes)
if err != nil {
panic(err)
}
previouslySent.SentAt = time.Now()
previouslySent.MessageHash = messageHash
db.Save(&previouslySent)
} else {
log.Println("Message already sent recently", messageHash)
}
}
}