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package socket
import (
"encoding/base64"
"crypto/rand"
"golang.org/x/net/websocket"
)
type Connection struct {
UUID string
WS *websocket.Conn
}
var connPool map[string]*Connection
func generateSecureString(length int) (string, error) {
// Calculate required byte length to yield the requested string length after Base64 encoding
byteLength := (length * 3) / 4
if (length * 3) % 4 != 0 {
byteLength++
}
bytes := make([]byte, byteLength)
if _, err := rand.Read(bytes); err != nil {
return "", err
}
// Encode to string and trim to exact requested length
encoded := base64.URLEncoding.EncodeToString(bytes)
return encoded[:length], nil
}
func Init() {
connPool = make(map[string]*Connection)
}
func (self *Connection) Register() error {
var nameExists = true
var new_id string
for nameExists {
new_id, err := generateSecureString(8)
if err != nil {
return err
}
_, nameExists = connPool[new_id]
}
self.UUID = new_id
connPool[new_id] = self
return nil
}
func RemoveFromPool(name string) {
var _, exists = connPool[name]
if (!exists) {
return
}
delete(connPool, name)
}
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