feat: v0.3.8 — full access control stack, GRANTED working, NTAG424 ISO7816 read, PN532 driver

pn532.py

@@ -302,7 +302,7 @@ class PN532_I2C:
         # 0. Poll for tag — activate it for InDataExchange
         uid = self.read_passive_target(timeout=timeout)
         if uid is None:
-            return None
+            return None, None, None
         utime.sleep_ms(100)
 
         # 1. Select NDEF Application (D2 76 00 00 85 01 01)
@@ -310,37 +310,37 @@ class PN532_I2C:
                    0xD2, 0x76, 0x00, 0x00, 0x85, 0x01, 0x01, 0x00]
         resp = self._apdu(sel_app)
         if not resp:
-            return None
+            return None, None
         sw1, sw2 = resp[0], resp[1]
         if sw1 != 0x90:
             print('[pn532] select app failed: %02x %02x' % (sw1, sw2))
-            return None
+            return None, None
 
         # 2. Select NDEF file (E1 04)
         sel_file = [0x00, 0xA4, 0x00, 0x0C, 0x02, 0xE1, 0x04]
         resp = self._apdu(sel_file)
         if not resp:
-            return None
+            return None, None
         sw1, sw2 = resp[0], resp[1]
         if sw1 != 0x90:
             print('[pn532] select file failed: %02x %02x' % (sw1, sw2))
-            return None
+            return None, None
 
         # 3. Read first 2 bytes to get NDEF length
         read_len = [0x00, 0xB0, 0x00, 0x00, 0x02]
         resp = self._apdu(read_len)
         if not resp or len(resp) < 4:
-            return None
+            return None, None
         # resp = [len_hi][len_lo][SW1][SW2]
         if len(resp) < 4:
-            return None
+            return None, None
         sw1, sw2 = resp[2], resp[3]
         if sw1 != 0x90:
             print('[pn532] read len failed: %02x %02x' % (sw1, sw2))
-            return None
+            return None, None
         ndef_len = (resp[0] << 8) | resp[1]
         if ndef_len == 0:
-            return None
+            return None, None
 
         # 4. Read NDEF data (max 200 bytes per read)
         ndef_data = bytearray()
@@ -367,12 +367,12 @@ class PN532_I2C:
             remaining -= chunk
 
         if not ndef_data:
-            return None
+            return None, None
 
         # 5. Parse NDEF message
         # ndef_data = clean NDEF bytes, no response code prefix
         if len(ndef_data) < 3:
-            return None
+            return None, None
 
         flags      = ndef_data[0]
         type_len   = ndef_data[1]
@@ -395,19 +395,21 @@ class PN532_I2C:
         idx += type_len  # skip type bytes
 
         if idx + payload_len > len(ndef_data):
-            return None
+            return None, None
 
         payload = ndef_data[idx:idx+payload_len]
 
         # TextRecord: byte 0 = status (lang_len), then lang, then text
         if len(payload) < 1:
-            return None
+            return None, None
         lang_len   = payload[0] & 0x3F
         text_start = 1 + lang_len
         if text_start > len(payload):
-            return None
+            return None, None
 
         try:
-            return bytes(payload[text_start:]).decode('utf-8')
+            import ubinascii as _ub
+            uid_hex = _ub.hexlify(uid).decode()
+            return uid_hex, bytes(payload[text_start:]).decode('utf-8')
         except Exception:
-            return None
+            return None, None