private NdefRecord ParseSonyNdefPayload(byte[] payload)
{
var ret = new NdefRecord();
StringBuilder sb = new StringBuilder();
int pointer = 0;
int contentCount = 0;
while (pointer < payload.Length)
{
Debug.WriteLine("-----Record[" + contentCount++ + "]-----");
// find id?
int id = payload[pointer] << 8 | payload[pointer + 1];
pointer += 2;
Debug.WriteLine("id: " + id.ToString("x4"));
// find size?
int size = payload[pointer] << 8 | payload[pointer + 1];
pointer += 2;
Debug.WriteLine("size: " + size.ToString("x4"));
// get value
String valueText = Encoding.UTF8.GetString(payload, pointer, size);
if (valueText.Length < 2)
{
string s = "0x" + payload[pointer].ToString("x");
Debug.WriteLine("value: " + s);
ret.SonyPayload.Add(s);
}
else
{
Debug.WriteLine("value: " + valueText);
ret.SonyPayload.Add(valueText);
}
if (id == 0x1000)
{
ret.SSID = valueText;
}
else if (id == 0x1001)
{
ret.Password = valueText;
}
pointer += size;
Debug.WriteLine("-----Record End----");
}
return(ret);
}
private void _parse()
{
int recordPointer = 0;
while (recordPointer < raw.Length)
{
bool isLastMessage = false;
var record = new NdefRecord();
record.ndefHeader = raw[recordPointer];
recordPointer++;
Debug.WriteLine("NDEF header: " + Convert.ToString((int)record.ndefHeader, 2).PadLeft(8));
record.typeLength = raw[recordPointer];
recordPointer++;
// to check whether short record or not
if ((0x10 & record.ndefHeader) == 0x10)
{
// short length
record.payloadLength = raw[recordPointer];
recordPointer += 1;
}
else
{
// not sony nfc format
record.payloadLength = raw[recordPointer + 3] << 24 | raw[recordPointer + 2] << 16 | raw[recordPointer + 1] << 8 | raw[recordPointer];
recordPointer += 4;
}
// parse TNF
record.typeNameFormat = (record.ndefHeader & 0x07);
// to check last message
if ((0x40 & record.ndefHeader) == 0x40)
{
isLastMessage = true;
}
// to check id length (0 or 1)
if ((0x08 & record.ndefHeader) == 0x08)
{
record.IsIdExist = true;
}
else
{
record.IsIdExist = false;
}
// get id length
if (record.IsIdExist)
{
record.idLength = raw[recordPointer];
recordPointer++;
}
// get type
record.type = Encoding.UTF8.GetString(raw, recordPointer, record.typeLength);
recordPointer += record.typeLength;
StringBuilder sb = new StringBuilder();
// get id (if exist)
if (record.IsIdExist)
{
record.id = Encoding.UTF8.GetString(raw, recordPointer, record.idLength);
recordPointer += record.idLength;
}
// get payload
Byte[] payload = new Byte[record.payloadLength];
Array.Copy(raw, recordPointer, payload, 0, record.payloadLength);
recordPointer += record.payloadLength;
record.RawPayload = new List <byte>(payload);
// store payload as text
record.payload = ForceConvertToString(payload);
// try to parse the payload as sony's NDEF payload
try
{
var parsedPayload = this.ParseSonyNdefPayload(payload);
record.SSID = parsedPayload.SSID;
record.Password = parsedPayload.Password;
record.SonyPayload = parsedPayload.SonyPayload;
}
catch
{
// if failed, store as just normal NDEF record.
}
records.Add(record);
record.dump();
if (isLastMessage)
{
Debug.WriteLine("Found the last record.");
break;
}
}
}
private NdefRecord ParseSonyNdefPayload(byte[] payload)
{
var ret = new NdefRecord();
StringBuilder sb = new StringBuilder();
int pointer = 0;
int contentCount = 0;
while (pointer < payload.Length)
{
Debug.WriteLine("-----Record[" + contentCount++ + "]-----");
// find id?
int id = payload[pointer] << 8 | payload[pointer + 1];
pointer += 2;
Debug.WriteLine("id: " + id.ToString("x4"));
// find size?
int size = payload[pointer] << 8 | payload[pointer + 1];
pointer += 2;
Debug.WriteLine("size: " + size.ToString("x4"));
// get value
String valueText = Encoding.UTF8.GetString(payload, pointer, size);
if (valueText.Length < 2)
{
string s = "0x" + payload[pointer].ToString("x");
Debug.WriteLine("value: " + s);
ret.SonyPayload.Add(s);
}
else
{
Debug.WriteLine("value: " + valueText);
ret.SonyPayload.Add(valueText);
}
if (id == 0x1000)
{
ret.SSID = valueText;
}
else if (id == 0x1001)
{
ret.Password = valueText;
}
pointer += size;
Debug.WriteLine("-----Record End----");
}
return ret;
}
private void _parse()
{
int recordPointer = 0;
while (recordPointer < raw.Length)
{
bool isLastMessage = false;
var record = new NdefRecord();
record.ndefHeader = raw[recordPointer];
recordPointer++;
Debug.WriteLine("NDEF header: " + Convert.ToString((int)record.ndefHeader, 2).PadLeft(8));
record.typeLength = raw[recordPointer];
recordPointer++;
// to check whether short record or not
if ((0x10 & record.ndefHeader) == 0x10)
{
// short length
record.payloadLength = raw[recordPointer];
recordPointer += 1;
}
else
{
// not sony nfc format
record.payloadLength = raw[recordPointer + 3] << 24 | raw[recordPointer + 2] << 16 | raw[recordPointer + 1] << 8 | raw[recordPointer];
recordPointer += 4;
}
// parse TNF
record.typeNameFormat = (record.ndefHeader & 0x07);
// to check last message
if ((0x40 & record.ndefHeader) == 0x40)
{
isLastMessage = true;
}
// to check id length (0 or 1)
if ((0x08 & record.ndefHeader) == 0x08)
{
record.IsIdExist = true;
}
else
{
record.IsIdExist = false;
}
// get id length
if (record.IsIdExist)
{
record.idLength = raw[recordPointer];
recordPointer++;
}
// get type
record.type = Encoding.UTF8.GetString(raw, recordPointer, record.typeLength);
recordPointer += record.typeLength;
StringBuilder sb = new StringBuilder();
// get id (if exist)
if (record.IsIdExist)
{
record.id = Encoding.UTF8.GetString(raw, recordPointer, record.idLength);
recordPointer += record.idLength;
}
// get payload
Byte[] payload = new Byte[record.payloadLength];
Array.Copy(raw, recordPointer, payload, 0, record.payloadLength);
recordPointer += record.payloadLength;
record.RawPayload = new List<byte>(payload);
// store payload as text
record.payload = ForceConvertToString(payload);
// try to parse the payload as sony's NDEF payload
try
{
var parsedPayload = this.ParseSonyNdefPayload(payload);
record.SSID = parsedPayload.SSID;
record.Password = parsedPayload.Password;
record.SonyPayload = parsedPayload.SonyPayload;
}
catch
{
// if failed, store as just normal NDEF record.
}
records.Add(record);
record.dump();
if (isLastMessage)
{
Debug.WriteLine("Found the last record.");
break;
}
}
}