/* #line 150 "./ragel/tsip_parser_message.rl" */
public static TSIP_Message Parse(byte[] content, Boolean extractContent)
{
TSK_RagelState state = TSK_RagelState.Init(content);
byte[] data = content;
TSIP_Message message = null;
// Ragel init
TSIP_ParserMessage.Init(ref state);
// State mechine execution
message = TSIP_ParserMessage.Execute(ref state, extractContent);
// Check result
if (message != null && state.CS <
/* #line 196 "../Parsers/TSIP_ParserMessage.cs" */
37
/* #line 164 "./ragel/tsip_parser_message.rl" */
)
{
message.Dispose();
message = null;
}
return(message);
}
private static void Init(ref TSK_RagelState state)
{
int cs = 0;
// Ragel machine initialization
/* #line 213 "../Parsers/TSIP_ParserMessage.cs" */
{
cs = tsip_machine_parser_message_start;
}
/* #line 178 "./ragel/tsip_parser_message.rl" */
state.CS = cs;
}
private static void EoH(ref TSK_RagelState state, ref TSIP_Message message, Boolean extractContent)
{
int cs = state.CS;
int p = state.P;
int pe = state.PE;
int eof = state.EOF;
if (extractContent && message != null)
{
int clen = (int)(message.ContentLength != null ? message.ContentLength.Length : 0);
if ((p + clen) < pe && message.Content == null)
{
byte[] content = new byte[clen];
Buffer.BlockCopy(state.Data, p + 1, content, 0, clen);
message.AddContent(null, content);
p = (p + clen);
}
else
{
p = (pe - 1);
}
}
}
// Check if we have ",CRLF" ==> See WWW-Authenticate header
// As :>CRLF is preceded by any+ ==> p will be at least (start + 1)
// p point to CR
private static Boolean PrevNotComma(TSK_RagelState state, int p)
{
return((state.PE <= p) || ((char)state.Data[p - 1] != ','));
}
private static TSIP_Message Execute(ref TSK_RagelState state, Boolean extractContent)
{
int cs = state.CS;
int p = state.P;
int pe = state.PE;
int eof = state.EOF;
byte[] data = state.Data;
TSIP_Message message = null;
/* #line 233 "../Parsers/TSIP_ParserMessage.cs" */
{
sbyte _klen;
byte _trans;
int _widec;
sbyte _acts;
sbyte _nacts;
byte _keys;
if (p == pe)
{
goto _test_eof;
}
if (cs == 0)
{
goto _out;
}
_resume:
_widec = data[p];
_klen = _tsip_machine_parser_message_cond_lengths[cs];
_keys = (byte)(_tsip_machine_parser_message_cond_offsets[cs] * 2);
if (_klen > 0)
{
short _lower = _keys;
short _mid;
short _upper = (short)(_keys + (_klen << 1) - 2);
while (true)
{
if (_upper < _lower)
{
break;
}
_mid = (short)(_lower + (((_upper - _lower) >> 1) & ~1));
if (_widec < _tsip_machine_parser_message_cond_keys[_mid])
{
_upper = (short)(_mid - 2);
}
else if (_widec > _tsip_machine_parser_message_cond_keys[_mid + 1])
{
_lower = (short)(_mid + 2);
}
else
{
switch (_tsip_machine_parser_message_cond_spaces[_tsip_machine_parser_message_cond_offsets[cs] + ((_mid - _keys) >> 1)])
{
case 0: {
_widec = (int)(65536u + (data[p] - 0u));
if (
/* #line 29 "./ragel/tsip_parser_message.rl" */
PrevNotComma(state, p)
)
{
_widec += 65536;
}
break;
}
default: break;
}
break;
}
}
}
_keys = _tsip_machine_parser_message_key_offsets[cs];
_trans = (byte)_tsip_machine_parser_message_index_offsets[cs];
_klen = _tsip_machine_parser_message_single_lengths[cs];
if (_klen > 0)
{
short _lower = _keys;
short _mid;
short _upper = (short)(_keys + _klen - 1);
while (true)
{
if (_upper < _lower)
{
break;
}
_mid = (short)(_lower + ((_upper - _lower) >> 1));
if (_widec < _tsip_machine_parser_message_trans_keys[_mid])
{
_upper = (short)(_mid - 1);
}
else if (_widec > _tsip_machine_parser_message_trans_keys[_mid])
{
_lower = (short)(_mid + 1);
}
else
{
_trans += (byte)(_mid - _keys);
goto _match;
}
}
_keys += (byte)_klen;
_trans += (byte)_klen;
}
_klen = _tsip_machine_parser_message_range_lengths[cs];
if (_klen > 0)
{
short _lower = _keys;
short _mid;
short _upper = (short)(_keys + (_klen << 1) - 2);
while (true)
{
if (_upper < _lower)
{
break;
}
_mid = (short)(_lower + (((_upper - _lower) >> 1) & ~1));
if (_widec < _tsip_machine_parser_message_trans_keys[_mid])
{
_upper = (short)(_mid - 2);
}
else if (_widec > _tsip_machine_parser_message_trans_keys[_mid + 1])
{
_lower = (short)(_mid + 2);
}
else
{
_trans += (byte)((_mid - _keys) >> 1);
goto _match;
}
}
_trans += (byte)_klen;
}
_match:
_trans = (byte)_tsip_machine_parser_message_indicies[_trans];
cs = _tsip_machine_parser_message_trans_targs[_trans];
if (_tsip_machine_parser_message_trans_actions[_trans] == 0)
{
goto _again;
}
_acts = _tsip_machine_parser_message_trans_actions[_trans];
_nacts = _tsip_machine_parser_message_actions[_acts++];
while (_nacts-- > 0)
{
switch (_tsip_machine_parser_message_actions[_acts++])
{
case 0:
/* #line 30 "./ragel/tsip_parser_message.rl" */
{
state.TagStart = p;
}
break;
case 1:
/* #line 36 "./ragel/tsip_parser_message.rl" */
{
int len;
state.TagEnd = p;
len = (int)(state.TagEnd - state.TagStart);
String method = Encoding.UTF8.GetString(data, state.TagStart, len);
if (message == null)
{
message = new TSIP_Request(method, null, null, null, null, 0);
}
else
{
state.CS = tsip_machine_parser_message_error;
}
}
break;
case 2:
/* #line 53 "./ragel/tsip_parser_message.rl" */
{
int len;
state.TagEnd = p;
len = (int)(state.TagEnd - state.TagStart);
if ((message as TSIP_Request).Uri == null)
{
(message as TSIP_Request).Uri = TSIP_ParserUri.Parse(Encoding.UTF8.GetString(state.Data, state.TagStart, len));
}
}
break;
case 3:
/* #line 65 "./ragel/tsip_parser_message.rl" */
{
int len;
state.TagEnd = p;
len = (int)(state.TagEnd - state.TagStart);
if (message == null)
{
message = new TSIP_Response(0, null, null);
}
message.Version = Encoding.UTF8.GetString(state.Data, state.TagStart, len);
}
break;
case 4:
/* #line 79 "./ragel/tsip_parser_message.rl" */
{
int len;
state.TagEnd = p;
len = (int)(state.TagEnd - state.TagStart);
if (message == null)
{
message = new TSIP_Response(0, null, null);
}
UInt16 statusCode = 0;
if (UInt16.TryParse(Encoding.UTF8.GetString(state.Data, state.TagStart, len), out statusCode))
{
(message as TSIP_Response).StatusCode = statusCode;
}
}
break;
case 5:
/* #line 98 "./ragel/tsip_parser_message.rl" */
{
int len;
state.TagEnd = p;
len = (int)(state.TagEnd - state.TagStart);
(message as TSIP_Response).ReasonPhrase = Encoding.UTF8.GetString(state.Data, state.TagStart, len);
}
break;
case 6:
/* #line 107 "./ragel/tsip_parser_message.rl" */
{
int len;
state.TagEnd = p;
len = (int)(state.TagEnd - state.TagStart);
if (!TSIP_ParserHeader.Parse(state, ref message))
{
TSK_Debug.Error("Failed to parse header at {0}", state.TagStart);
}
}
break;
case 7:
/* #line 119 "./ragel/tsip_parser_message.rl" */
{
state.CS = cs;
state.P = p;
state.PE = pe;
state.EOF = eof;
TSIP_ParserMessage.EoH(ref state, ref message, extractContent);
cs = state.CS;
p = state.P;
pe = state.PE;
eof = state.EOF;
}
break;
/* #line 447 "../Parsers/TSIP_ParserMessage.cs" */
default: break;
}
}
_again:
if (cs == 0)
{
goto _out;
}
if (++p != pe)
{
goto _resume;
}
_test_eof : {}
_out : {}
}
/* #line 192 "./ragel/tsip_parser_message.rl" */
state.CS = cs;
state.P = p;
state.PE = pe;
state.EOF = eof;
return(message);
}