simplified MessageID Class

removed ESPTrueRandom library

Author: sivar2311

src/SinricPro.h

@@ -17,8 +17,6 @@
 #include "SinricProQueue.h"
 #include "SinricProNTP.h"
 
-#include "extralib/ESPTrueRandom/ESPTrueRandom.h"
-
 class SinricProClass : public SinricProInterface {
   public:
     void begin(String socketAuthToken, String signingKey, String serverURL = SERVER_URL);

src/SinricProMessageid.h

@@ -8,25 +8,27 @@
 #ifndef __MESSAGEID_H__
 #define __MESSAGEID_H__
 
-#include "extralib/ESPTrueRandom/ESPTrueRandom.h"
-
 class MessageID {
 public:
   MessageID();
-  char* getID() { return msg_id; };
+  const String& getID() { return _id; }
 private:
-  void newMsgId();
-  char msg_id[37];
+  String _id;
 };
 
 MessageID::MessageID() {
-  newMsgId();
-}
-
-void MessageID::newMsgId() {
-  byte new_uuid[16];
-  ESPTrueRandom.uuid(new_uuid);
-  strlcpy(msg_id, ESPTrueRandom.uuidToString(new_uuid).c_str(), 37);
+  _id = "";
+  for (byte i=0; i<16; i++) {
+    byte rnd = random(255);
+    if (i==4) _id += "-";
+    if (i==6) { _id += "-"; rnd = 0x40 | (0x0F & rnd); } // 0100xxxx to set version 4
+    if (i==8) { _id += "-"; rnd = 0x80 | (0x3F & rnd); } // 10xxxxxx to set reserved bits
+    if (i==10) _id += "-";
+    byte high_nibble = rnd >> 4;
+    byte low_nibble = rnd & 0x0f;
+    _id += "0123456789abcdef"[high_nibble];
+    _id += "0123456789abcdef"[low_nibble];
+  }
 }
 
 #endif // __MESSAGEID_H__