1 files changed, 60 insertions, 0 deletions
diff --git a/back/Socket/Pool.go b/back/Socket/Pool.go
new file mode 100644
index 0000000..f3d4687
--- /dev/null
+++ b/back/Socket/Pool.go
@@ -0,0 +1,60 @@
+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)
+}