bool AMF0Serializer::ReadLongString(IOBuffer &buffer, Variant &variant, bool readType) {
if (readType) {
AMF_CHECK_BOUNDARIES(buffer, 1);
if (GETIBPOINTER(buffer)[0] != AMF0_LONG_STRING) {
FATAL("AMF type not valid: want: %"PRIu8"; got: %"PRIu8,
AMF0_LONG_STRING, GETIBPOINTER(buffer)[0]);
return false;
}
if (!buffer.Ignore(1)) {
FATAL("Unable to ignore 1 bytes");
return false;
}
}
AMF_CHECK_BOUNDARIES(buffer, 4);
uint32_t length = ENTOHLP(GETIBPOINTER(buffer)); //----MARKED-LONG---
if (!buffer.Ignore(4)) {
FATAL("Unable to ignore 4 bytes");
return false;
}
AMF_CHECK_BOUNDARIES(buffer, length);
variant = string((char *) (GETIBPOINTER(buffer)), length);
if (!buffer.Ignore(length)) {
FATAL("Unable to ignore %"PRIu32" bytes", length);
return false;
}
return true;
}
bool AMF0Serializer::ReadShortString(IOBuffer &buffer, Variant &variant,
bool readType) {
if (readType) {
AMF_CHECK_BOUNDARIES(buffer, 1);
if (GETIBPOINTER(buffer)[0] != AMF0_SHORT_STRING) {
FATAL("AMF type not valid: want: %hhu; got: %hhu",
AMF0_SHORT_STRING, GETIBPOINTER(buffer)[0]);
return false;
}
if (!buffer.Ignore(1)) {
FATAL("Unable to ignore 1 bytes");
return false;
}
}
AMF_CHECK_BOUNDARIES(buffer, 2);
uint16_t length = ENTOHSP(GETIBPOINTER(buffer)); //----MARKED-SHORT----
if (!buffer.Ignore(2)) {
FATAL("Unable to ignore 2 bytes");
return false;
}
AMF_CHECK_BOUNDARIES(buffer, length);
variant = string((char *) (GETIBPOINTER(buffer)), length);
if (!buffer.Ignore(length)) {
FATAL("Unable to ignore %hu bytes", length);
return false;
}
return true;
}
bool AMF0Serializer::ReadDouble(IOBuffer &buffer, Variant &variant,
bool readType) {
if (readType) {
AMF_CHECK_BOUNDARIES(buffer, 1);
if (GETIBPOINTER(buffer)[0] != AMF0_NUMBER) {
FATAL("AMF type not valid: want: %hhu; got: %hhu",
AMF0_NUMBER, GETIBPOINTER(buffer)[0]);
return false;
}
if (!buffer.Ignore(1)) {
FATAL("Unable to ignore 1 bytes");
return false;
}
}
AMF_CHECK_BOUNDARIES(buffer, 8);
double temp = 0;
ENTOHDP(GETIBPOINTER(buffer), temp);
variant = (double) temp;
if (!buffer.Ignore(8)) {
FATAL("Unable to ignore 8 bytes");
return false;
}
return true;
}
bool InboundJSONCLIProtocol::SignalInputData(IOBuffer &buffer) {
//1. Get the buffer and the length
uint8_t *pBuffer = GETIBPOINTER(buffer);
uint32_t length = GETAVAILABLEBYTESCOUNT(buffer);
if (length == 0)
return true;
//2. Walk through the buffer and execute the commands
string command = "";
for (uint32_t i = 0; i < length; i++) {
if ((pBuffer[i] == 0x0d) || (pBuffer[i] == 0x0a)) {
if (command != "") {
if (!ParseCommand(command)) {
FATAL("Unable to parse command\n`%s`", STR(command));
return false;
}
}
command = "";
buffer.Ignore(i);
pBuffer = GETIBPOINTER(buffer);
length = GETAVAILABLEBYTESCOUNT(buffer);
i = 0;
continue;
}
command += (char) pBuffer[i];
if (command.length() >= MAX_COMMAND_LENGTH) {
FATAL("Command too long");
return false;
}
}
//3. Done
return true;
}
bool BaseVariantProtocol::SignalInputData(IOBuffer &buffer) {
if (_pProtocolHandler == NULL) {
FATAL("This protocol is not registered to any application yet");
return false;
}
if (_pFarProtocol->GetType() == PT_OUTBOUND_HTTP
|| _pFarProtocol->GetType() == PT_INBOUND_HTTP) {
#ifdef HAS_PROTOCOL_HTTP
//1. This is a HTTP based transfer. We only start doing stuff
//after a complete request is made.
BaseHTTPProtocol *pHTTPProtocol = (BaseHTTPProtocol *) _pFarProtocol;
if (!pHTTPProtocol->TransferCompleted())
return true;
if (!Deserialize(GETIBPOINTER(buffer), pHTTPProtocol->GetContentLength(),
_lastReceived)) {
FATAL("Unable to deserialize content");
return false;
}
buffer.Ignore(pHTTPProtocol->GetContentLength());
_lastReceived.Compact();
return _pProtocolHandler->ProcessMessage(this, _lastSent, _lastReceived);
#else
FATAL("HTTP protocol not supported");
return false;
#endif /* HAS_PROTOCOL_HTTP */
} else if (_pFarProtocol->GetType() == PT_TCP) {
while (GETAVAILABLEBYTESCOUNT(buffer) > 4) {
uint32_t size = ENTOHLP(GETIBPOINTER(buffer));
if (size > 4 * 1024 * 1024) {
FATAL("Size too big: %u", size);
return false;
}
if (GETAVAILABLEBYTESCOUNT(buffer) < size + 4) {
FINEST("Need more data");
return true;
}
if (!Deserialize(GETIBPOINTER(buffer) + 4, size, _lastReceived)) {
FATAL("Unable to deserialize variant");
return false;
}
buffer.Ignore(size + 4);
_lastReceived.Compact();
if (!_pProtocolHandler->ProcessMessage(this, _lastSent, _lastReceived)) {
FATAL("Unable to process message");
return false;
}
}
return true;
} else {
FATAL("Invalid protocol stack");
return false;
}
}
bool InboundRTMPProtocol::ValidateClientScheme(IOBuffer &inputBuffer, uint8_t scheme) {
uint8_t *pBuffer = GETIBPOINTER(inputBuffer);
uint32_t clientDigestOffset = GetDigestOffset(pBuffer, scheme);
uint8_t *pTempBuffer = new uint8_t[1536 - 32];
memcpy(pTempBuffer, pBuffer, clientDigestOffset);
memcpy(pTempBuffer + clientDigestOffset, pBuffer + clientDigestOffset + 32,
1536 - clientDigestOffset - 32);
uint8_t *pTempHash = new uint8_t[512];
HMACsha256(pTempBuffer, 1536 - 32, genuineFPKey, 30, pTempHash);
bool result = true;
for (uint32_t i = 0; i < 32; i++) {
if (pBuffer[clientDigestOffset + i] != pTempHash[i]) {
result = false;
break;
}
}
delete[] pTempBuffer;
delete[] pTempHash;
return result;
}
bool HTTP4CLIProtocol::EnqueueForOutbound() {
//1. Empty our local buffer
_localOutputBuffer.IgnoreAll();
//2. Get the HTTP protocol
InboundHTTPProtocol *pHTTP = (InboundHTTPProtocol *) GetFarProtocol();
//3. Prepare the HTTP headers
//pHTTP->SetOutboundHeader(HTTP_HEADERS_CONTENT_TYPE, "application/json");
pHTTP->SetOutboundHeader(HTTP_HEADERS_CONTENT_TYPE, "text/plain");
//4. Get the buffer from PT_INBOUND_JSONCLI
IOBuffer *pBuffer = GetNearProtocol()->GetOutputBuffer();
if (pBuffer == NULL)
return true;
//5. Put the data inside the local buffer and empty the buffer from
//the PT_INBOUND_JSONCLI
_localOutputBuffer.ReadFromBuffer(GETIBPOINTER(*pBuffer),
GETAVAILABLEBYTESCOUNT(*pBuffer));
pBuffer->IgnoreAll();
//6. Trigger EnqueueForOutbound down the stack
return pHTTP->EnqueueForOutbound();
}
bool BaseHTTPProtocol::HandleFixedLengthContent(IOBuffer &buffer) {
//1. Compute the chunk size that we areg going to read
//which is how many bytes we have available, but no more than _contentLength
uint32_t chunkSize = GETAVAILABLEBYTESCOUNT(buffer);
o_assert(_sessionDecodedBytesCount <= _contentLength);
uint32_t remaining = _contentLength - _sessionDecodedBytesCount;
chunkSize = chunkSize > remaining ? remaining : chunkSize;
//2. Update the session decoded bytes count and decoded bytes count
_sessionDecodedBytesCount += chunkSize;
_decodedBytesCount += chunkSize;
//3. Make the copy and ignore the chunk size
_inputBuffer.ReadFromBuffer(GETIBPOINTER(buffer), chunkSize);
buffer.Ignore(chunkSize);
//3. Call the near protocol
if (!_pNearProtocol->SignalInputData(_inputBuffer)) {
FATAL("Unable to call the next protocol in stack");
return false;
}
//4. reset the state if necessary
if (TransferCompleted()) {
_headers.Reset();
_contentLength = 0;
_chunkedContent = false;
_lastChunk = false;
_state = HTTP_STATE_HEADERS;
_sessionDecodedBytesCount = 0;
}
//5. we are done
return true;
}
void AtomMDAT::SerializeToBuffer(IOBuffer& data, uint32_t maxFrames) {
uint32_t start=GETAVAILABLEBYTESCOUNT(data);
BaseAtom::SerializeToBuffer(data, maxFrames);
_size=GETAVAILABLEBYTESCOUNT(data)-start;
*(uint32_t*)(GETIBPOINTER(data)+start) = endianSwap32(_size);
}
void AtomURL::SerializeToBuffer(IOBuffer& data, uint32_t maxFrames) {
uint32_t start=GETAVAILABLEBYTESCOUNT(data);
VersionedAtom::SerializeToBuffer(data, maxFrames);
data.ReadFromString(_location);
_size=GETAVAILABLEBYTESCOUNT(data)-start;
*(uint32_t*)(GETIBPOINTER(data)+start) = endianSwap32(_size);
}
bool StreamCapabilities::Deserialize(string seekFilePath, StreamCapabilities &capabilities) {
File file;
if (!file.Initialize(seekFilePath, FILE_OPEN_MODE_READ)) {
FATAL("Unable to open seek file %s", STR(seekFilePath));
return false;
}
uint32_t length = 0;
if (!file.ReadUI32(&length, false)) {
FATAL("Unable to read stream capabilities length from file %s", STR(seekFilePath));
return false;
}
if (length > 1024 * 1024) {
FATAL("Invalid stream capabilities length in file %s: %"PRIu32, STR(seekFilePath), length);
return false;
}
IOBuffer buffer;
buffer.ReadFromRepeat(0, length);
if (!file.ReadBuffer(GETIBPOINTER(buffer), length)) {
FATAL("Unable to read stream capabilities payload from file %s", STR(seekFilePath));
return false;
}
file.Close();
if (!Deserialize(buffer, capabilities)) {
FATAL("Unable to deserialize stream capabilities from file %s", STR(seekFilePath));
return false;
}
return true;
}
bool BaseMediaDocument::SaveSeekFile() {
if (_frames.size() <= 2) {
FATAL("No frames found");
return false;
}
File seekFile;
//1. Open the file
if (!seekFile.Initialize(_seekFilePath + ".tmp", FILE_OPEN_MODE_TRUNCATE)) {
FATAL("Unable to open seeking file %s", STR(_seekFilePath));
return false;
}
//2. Setup the bandwidth hint in bytes/second
uint32_t totalSeconds = (uint32_t) (((uint32_t) _frames[_frames.size() - 1].absoluteTime) / 1000);
_streamCapabilities.bandwidthHint =
(uint32_t) ((double) _mediaFile.Size() / (double) totalSeconds / 1024.0 * 8.0);
//2. Serialize the stream capabilities
IOBuffer raw;
if (!_streamCapabilities.Serialize(raw)) {
FATAL("Unable to serialize stream capabilities");
return false;
}
if (!seekFile.WriteUI32(GETAVAILABLEBYTESCOUNT(raw), false)) {
FATAL("Unable to serialize stream capabilities");
return false;
}
if (!seekFile.WriteBuffer(GETIBPOINTER(raw), GETAVAILABLEBYTESCOUNT(raw))) {
FATAL("Unable to serialize stream capabilities");
return false;
}
//2. Write the number of frames
uint32_t framesCount = (uint32_t) _frames.size();
if (!seekFile.WriteUI32(framesCount, false)) {
FATAL("Unable to write frame count");
return false;
}
//3. Write the frames
bool hasVideo = false;
uint64_t maxFrameSize = 0;
FOR_VECTOR(_frames, i) {
MediaFrame &frame = _frames[i];
if (maxFrameSize < frame.length) {
//WARN("maxFrameSize bumped up: %"PRIu64" -> %"PRIu64, maxFrameSize, frame.length);
maxFrameSize = frame.length;
}
hasVideo |= (frame.type == MEDIAFRAME_TYPE_VIDEO);
if (!seekFile.WriteBuffer((uint8_t *) & frame, sizeof (frame))) {
FATAL("Unable to write frame");
return false;
}
}
bool BaseHTTPProtocol::EnqueueForOutbound() {
//1. Get the output buffer
if (_pNearProtocol == NULL) {
FATAL("No near protocol");
return false;
}
IOBuffer *pBuffer = _pNearProtocol->GetOutputBuffer();
uint32_t bufferLength = 0;
if (pBuffer != NULL) {
bufferLength = GETAVAILABLEBYTESCOUNT(*pBuffer);
}
//3. add or replace X-Powered-By attribute
_outboundHeaders[HTTP_HEADERS_X_POWERED_BY] = HTTP_HEADERS_X_POWERED_BY_US;
//4. add or replace the Server attribute
if (GetType() == PT_INBOUND_HTTP) {
_outboundHeaders[HTTP_HEADERS_SERVER] = HTTP_HEADERS_SERVER_US;
}
//5. Get rid of the Content-Length attribute and add it only if necessary
_outboundHeaders.RemoveKey(HTTP_HEADERS_CONTENT_LENGTH);
if (bufferLength > 0) {
_outboundHeaders[HTTP_HEADERS_CONTENT_LENGTH] = format("%u", bufferLength);
}
//6. Get rid of Transfer-Encoding attribute
_outboundHeaders.RemoveKey(HTTP_HEADERS_TRANSFER_ENCODING);
//7. Write the first line of the request/response
_outputBuffer.ReadFromString(GetOutputFirstLine() + "\r\n");
//8. Write the headers and the final '\r\n'
FOR_MAP(_outboundHeaders, string, Variant, i) {
if (MAP_VAL(i) != V_STRING) {
FATAL("Invalid HTTP headers:\n%s", STR(_outboundHeaders.ToString()));
return false;
}
_outputBuffer.ReadFromString(format("%s: %s\r\n", STR(MAP_KEY(i)), STR(MAP_VAL(i))));
}
_outboundHeaders.Reset();
_outboundHeaders.IsArray(false);
_outputBuffer.ReadFromString("\r\n");
//9. Write the actual content if necessary
if (bufferLength > 0) {
_outputBuffer.ReadFromBuffer(GETIBPOINTER(*pBuffer), GETAVAILABLEBYTESCOUNT(*pBuffer));
//10. Empty the upper output buffer
pBuffer->IgnoreAll();
}
//11. Let the request flow further
return BaseProtocol::EnqueueForOutbound();
}
bool AMF0Serializer::ReadObject(IOBuffer &buffer, Variant &variant,
bool readType) {
if (readType) {
AMF_CHECK_BOUNDARIES(buffer, 1);
if (GETIBPOINTER(buffer)[0] != AMF0_OBJECT) {
FATAL("AMF type not valid: want: %"PRIu8"; got: %"PRIu8,
AMF0_OBJECT, GETIBPOINTER(buffer)[0]);
return false;
}
if (!buffer.Ignore(1)) {
FATAL("Unable to ignore 1 bytes");
return false;
}
}
AMF_CHECK_BOUNDARIES(buffer, 3);
while (!((GETIBPOINTER(buffer)[0] == 0) && (GETIBPOINTER(buffer)[1] == 0) && (GETIBPOINTER(buffer)[2] == 9))) {
Variant key;
Variant value;
if (!ReadShortString(buffer, key, false)) {
FATAL("Unable to read key");
return false;
}
if (!Read(buffer, value)) {
FATAL("Unable to read value");
return false;
}
variant[key] = value;
}
AMF_CHECK_BOUNDARIES(buffer, 3);
if (!buffer.Ignore(3)) {
FATAL("Unable to ignore 3 bytes");
return false;
}
variant.IsArray(false);
return true;
}
bool OutboundRTMPProtocol::VerifyServer(IOBuffer & inputBuffer) {
uint8_t *pBuffer = GETIBPOINTER(inputBuffer) + 1;
uint32_t serverDigestOffset = GetDigestOffset(pBuffer, _usedScheme);
DEBUG_HANDSHAKE("CLIENT: Validate: 1. serverDigestOffset: %" PRIu32 "; _usedScheme: %" PRIu8,
serverDigestOffset, _usedScheme);
uint8_t *pTempBuffer = new uint8_t[1536 - 32];
memcpy(pTempBuffer, pBuffer, serverDigestOffset);
memcpy(pTempBuffer + serverDigestOffset, pBuffer + serverDigestOffset + 32,
1536 - serverDigestOffset - 32);
uint8_t * pDigest = new uint8_t[512];
HMACsha256(pTempBuffer, 1536 - 32, genuineFMSKey, 36, pDigest);
DEBUG_HANDSHAKE("CLIENT: Validate: 2. computed serverDigest %s", STR(hex(pDigest, 32)));
DEBUG_HANDSHAKE("CLIENT: Validate: 3. found serverDigest %s", STR(hex(pBuffer + serverDigestOffset, 32)));
int result = memcmp(pDigest, pBuffer + serverDigestOffset, 32);
delete[] pTempBuffer;
delete[] pDigest;
if (result != 0) {
FATAL("Server not verified");
return false;
}
pBuffer = pBuffer + 1536;
uint8_t * pChallange = new uint8_t[512];
HMACsha256(_pClientDigest, 32, genuineFMSKey, 68, pChallange);
pDigest = new uint8_t[512];
HMACsha256(pBuffer, 1536 - 32, pChallange, 32, pDigest);
DEBUG_HANDSHAKE("CLIENT: Validate: 4. computed serverChallange: %s", STR(hex(pDigest, 32)));
DEBUG_HANDSHAKE("CLIENT: Validate: 5. found serverChallange: %s", STR(hex(pBuffer + 1536 - 32, 32)));
result = memcmp(pDigest, pBuffer + 1536 - 32, 32);
delete[] pChallange;
delete[] pDigest;
if (result != 0) {
FATAL("Server not verified");
return false;
}
return true;
}
bool BaseSSLProtocol::SignalInputData(IOBuffer &buffer) {
//1. get the SSL input buffer
BIO *pInBio = SSL_get_rbio(_pSSL);
//2. dump all the data from the network inside the ssl input
BIO_write(pInBio, GETIBPOINTER(buffer),
GETAVAILABLEBYTESCOUNT(buffer));
buffer.IgnoreAll();
//3. Do we have to do some handshake?
if (!_sslHandshakeCompleted) {
if (!DoHandshake()) {
FATAL("Unable to do the SSL handshake");
return false;
}
if (!_sslHandshakeCompleted) {
return true;
}
}
//4. Read the actual data an put it in the descrypted input buffer
int32_t read = 0;
while ((read = SSL_read(_pSSL, _pReadBuffer, MAX_SSL_READ_BUFFER)) > 0) {
_inputBuffer.ReadFromBuffer(_pReadBuffer, (uint32_t) read);
}
if (read < 0) {
int32_t error = SSL_get_error(_pSSL, read);
if (error != SSL_ERROR_WANT_READ &&
error != SSL_ERROR_WANT_WRITE) {
FATAL("Unable to read data: %d", error);
return false;
}
}
//6. If we have pending data inside the decrypted buffer, bubble it up on the protocol stack
if (GETAVAILABLEBYTESCOUNT(_inputBuffer) > 0) {
if (_pNearProtocol != NULL) {
if (!_pNearProtocol->SignalInputData(_inputBuffer)) {
FATAL("Unable to signal near protocol for new data");
return false;
}
}
}
//7. After the data was sent on the upper layers, we might have outstanding
//data that needs to be sent.
return PerformIO();
}
bool StreamCapabilities::Deserialize(IOBuffer &src, StreamCapabilities &capabilities) {
uint8_t *pBuffer = GETIBPOINTER(src);
uint32_t length = GETAVAILABLEBYTESCOUNT(src);
if (length < 28) {
FATAL("Not enough data");
return false;
}
uint64_t ver = ENTOHLLP(pBuffer);
if (ver != __STREAM_CAPABILITIES_VERSION) {
FATAL("Invalid stream capabilities version. Wanted: %"PRIu64"; Got: %"PRIu64,
__STREAM_CAPABILITIES_VERSION, ver);
return false;
}
capabilities.Clear();
capabilities.videoCodecId = ENTOHLLP(pBuffer + 8);
capabilities.audioCodecId = ENTOHLLP(pBuffer + 16);
capabilities.bandwidthHint = ENTOHLP(pBuffer + 24);
src.Ignore(28);
switch (capabilities.videoCodecId) {
case CODEC_VIDEO_AVC:
{
if (!_VIDEO_AVC::Deserialize(src, capabilities.avc)) {
FATAL("Unable to deserialize avc");
return false;
}
break;
}
default:
{
break;
}
}
switch (capabilities.audioCodecId) {
case CODEC_AUDIO_AAC:
{
if (!_AUDIO_AAC::Deserialize(src, capabilities.aac)) {
FATAL("Unable to deserialize aac");
return false;
}
break;
}
default:
{
break;
}
}
return true;
}
bool InboundHTTP4RTMP::ProcessIdle(vector<string> &parts) {
BaseProtocol *pProtocol = Bind(parts[2]);
if (pProtocol == NULL) {
FATAL("Unable to bind protocol");
return false;
}
_outputBuffer.ReadFromByte(1);
IOBuffer *pBuffer = pProtocol->GetOutputBuffer();
if (pBuffer != NULL) {
_outputBuffer.ReadFromBuffer(GETIBPOINTER(*pBuffer), GETAVAILABLEBYTESCOUNT(*pBuffer));
pBuffer->IgnoreAll();
}
return BaseProtocol::EnqueueForOutbound();
}
bool VariantConnection::SendMessage(Variant &message, Variant &response) {
string rawContent = " ";
if (!message.SerializeToBin(rawContent)) {
FATAL("Unable to serialize message");
return false;
}
uint8_t *pBuffer = (uint8_t *) rawContent.c_str();
uint32_t size = rawContent.size();
EHTONLP(pBuffer, size - 4);
int32_t totalSentAmount = 0;
int32_t sentAmount = 0;
while (totalSentAmount < (int32_t) size) {
sentAmount = send(_fd, pBuffer + totalSentAmount, size - totalSentAmount, 0);
if (sentAmount <= 0) {
return false;
}
totalSentAmount += sentAmount;
}
_buffer.IgnoreAll();
int32_t recvAmount = 0;
for (;;) {
if (!_buffer.ReadFromTCPFd(_fd, 1024 * 1024, recvAmount)) {
FATAL("Unable to read from socket");
return false;
}
size = GETAVAILABLEBYTESCOUNT(_buffer);
pBuffer = GETIBPOINTER(_buffer);
if (size < 4) {
WARN("not enough data. Wait for more...");
continue;
}
uint32_t variantSize = ENTOHLP(pBuffer);
if (variantSize + 4 > size) {
WARN("not enough data. Wait for more...");
continue;
}
if (!Variant::DeserializeFromBin(pBuffer + 4, variantSize, response)) {
FATAL("Unable to deserialize buffer");
return false;
}
return true;
}
}
bool _AUDIO_AAC::Deserialize(IOBuffer &src, _AUDIO_AAC &dest) {
dest.Clear();
uint8_t *pBuffer = GETIBPOINTER(src);
uint32_t length = GETAVAILABLEBYTESCOUNT(src);
if (length<sizeof (dest._aacLength)) {
FATAL("Not enough data");
return false;
}
dest._aacLength = ENTOHLP(pBuffer);
if (length<sizeof (dest._aacLength) + dest._aacLength) {
FATAL("Not enough data");
return false;
}
if (!dest.Init(pBuffer + sizeof (dest._aacLength), dest._aacLength)) {
FATAL("Unable to init AAC");
return false;
}
return src.Ignore(sizeof (dest._aacLength) + dest._aacLength);
}
bool InboundRTMPSDiscriminatorProtocol::SignalInputData(IOBuffer &buffer) {
//1. Do we have enough data?
if (GETAVAILABLEBYTESCOUNT(buffer) < 4)
return true;
//2. Get the first 4 bytes in a string
string method = string((char *) GETIBPOINTER(buffer), 4);
//3. Create the proper RTMP stack
if (method == HTTP_METHOD_POST) {
#ifdef HAS_PROTOCOL_HTTP
return BindHTTP(buffer);
#else
FATAL("No HTTP protocol support");
return false;
#endif /* HAS_PROTOCOL_HTTP */
} else {
return BindSSL(buffer);
}
}
void AtomMVHD::SerializeToBuffer(IOBuffer& data, uint32_t maxFrames) {
uint32_t start=GETAVAILABLEBYTESCOUNT(data);
VersionedAtom::SerializeToBuffer(data, maxFrames);
data.ReadFromDataType<uint32_t>(endianSwap32(_creationTime));
data.ReadFromDataType<uint32_t>(endianSwap32(_modificationTime));
data.ReadFromDataType<uint32_t>(endianSwap32(_timeScale));
_offset=GETAVAILABLEBYTESCOUNT(data);
data.ReadFromDataType<uint32_t>(endianSwap32(_duration));
data.ReadFromDataType<uint32_t>(endianSwap32(_preferredRate));
data.ReadFromDataType<uint16_t>(endianSwap16(_preferredVolume));
data.ReadFromBuffer(_reserved, sizeof(_reserved));
for (uint32_t i=0; i<9; i++)
data.ReadFromDataType<uint32_t>(endianSwap32(_matrixStructure[i]));
for (uint32_t i=0; i<6; i++) {
data.ReadFromRepeat(0x00, 4);
}
data.ReadFromDataType<uint32_t>(endianSwap32(_nextTrakId));
_size=GETAVAILABLEBYTESCOUNT(data)-start;
*(uint32_t*)(GETIBPOINTER(data)+start) = endianSwap32(_size);
}
bool BaseSSLProtocol::EnqueueForOutbound() {
//1. Is the SSL handshake completed?
if (!_sslHandshakeCompleted) {
return DoHandshake();
}
//2. Do we have some outstanding data?
IOBuffer *pBuffer = _pNearProtocol->GetOutputBuffer();
if (pBuffer == NULL)
return true;
//3. Encrypt the outstanding data
if (SSL_write(_pSSL, GETIBPOINTER(*pBuffer), GETAVAILABLEBYTESCOUNT(*pBuffer))
!= (int32_t) GETAVAILABLEBYTESCOUNT(*pBuffer)) {
FATAL("Unable to write %u bytes", GETAVAILABLEBYTESCOUNT(*pBuffer));
return false;
}
pBuffer->IgnoreAll();
//4. Do the actual I/O
return PerformIO();
}
bool InboundRTMPProtocol::PerformSimpleHandshake(IOBuffer &buffer) {
if (_pOutputBuffer == NULL) {
_pOutputBuffer = new uint8_t[1536];
} else {
delete[] _pOutputBuffer;
_pOutputBuffer = new uint8_t[1536];
}
for (uint32_t i = 0; i < 1536; i++) {
_pOutputBuffer[i] = rand() % 256;
}
for (uint32_t i = 0; i < 10; i++) {
uint32_t index = (rand() + 8) % (1536 - HTTP_HEADERS_SERVER_US_LEN);
memcpy(_pOutputBuffer + index, HTTP_HEADERS_SERVER_US, HTTP_HEADERS_SERVER_US_LEN);
}
_outputBuffer.ReadFromByte(3);
_outputBuffer.ReadFromBuffer(_pOutputBuffer, 1536);
_outputBuffer.ReadFromBuffer(GETIBPOINTER(buffer), 1536);
//final cleanup
delete[] _pOutputBuffer;
_pOutputBuffer = NULL;
if (!buffer.Ignore(1536)) {
FATAL("Unable to ignore input buffer");
return false;
}
//signal outbound data
if (!EnqueueForOutbound()) {
FATAL("Unable to signal outbound data");
return false;
}
//move to the next stage in the handshake
_rtmpState = RTMP_STATE_SERVER_RESPONSE_SENT;
return true;
}
bool _VIDEO_AVC::Deserialize(IOBuffer &src, _VIDEO_AVC &dest) {
dest.Clear();
uint8_t *pBuffer = GETIBPOINTER(src);
uint32_t length = GETAVAILABLEBYTESCOUNT(src);
if (length<sizeof (dest._spsLength)) {
FATAL("Not enough data");
return false;
}
dest._spsLength = ENTOHSP(pBuffer);
if (length < (
sizeof (dest._spsLength)
+ dest._spsLength
+ sizeof (dest._ppsLength)
+ 2 * sizeof (uint32_t))) {
FATAL("Not enough data");
return false;
}
dest._ppsLength = ENTOHSP(pBuffer + sizeof (dest._spsLength) + dest._spsLength);
if (length < (
sizeof (dest._spsLength)
+ dest._spsLength
+ sizeof (dest._ppsLength)
+ dest._ppsLength
+ 2 * sizeof (uint32_t))) {
FATAL("Not enough data");
return false;
}
if (!dest.Init(
pBuffer + sizeof (dest._spsLength), dest._spsLength,
pBuffer + sizeof (dest._spsLength) + dest._spsLength + sizeof (dest._ppsLength), dest._ppsLength)) {
FATAL("Unable to init AVC");
return false;
}
dest._widthOverride = ENTOHLP(pBuffer + sizeof (dest._spsLength) + dest._spsLength + sizeof (dest._ppsLength) + dest._ppsLength);
dest._heightOverride = ENTOHLP(pBuffer + sizeof (dest._spsLength) + dest._spsLength + sizeof (dest._ppsLength) + dest._ppsLength + sizeof (uint32_t));
return src.Ignore(sizeof (dest._spsLength) + dest._spsLength + sizeof (dest._ppsLength) + dest._ppsLength + sizeof (uint32_t) + sizeof (uint32_t));
}
bool BaseHTTPProtocol::HandleChunkedContent(IOBuffer &buffer) {
//2. We cycle until we don't have any complete chunks anymore
//or we hit the 0 bytes chunks (end of chunked content)
uint8_t *pBuffer = NULL;
uint32_t chunkSize = 0;
uint32_t chunkSizeSize = 0;
while (GETAVAILABLEBYTESCOUNT(buffer) >= 3) {
//1. Get the raw pointer. We need it almost everywhere
pBuffer = GETIBPOINTER(buffer);
//FINEST("%s", STR(buffer));
chunkSizeSize = 0;
//3. Read the string which represents the number of bytes in the chunk
for (uint32_t i = 0; i < GETAVAILABLEBYTESCOUNT(buffer) - 1; i++) {
//5. Are we at the end of chunk size string?
if ((pBuffer[i] == 0x0d) && (pBuffer[i + 1] == 0x0a)) {
chunkSizeSize = i + 2;
break;
}
//4. If the chunk size string has more than 10 bytes, we drop it like
//is hot! Also test each char to be a hex number.
//This is a bogus request/response
if (i >= 10 || (!(((pBuffer[i] >= '0') && (pBuffer[i] <= '9'))
|| ((pBuffer[i] >= 'a') && (pBuffer[i] <= 'f'))
|| ((pBuffer[i] >= 'A') && (pBuffer[i] <= 'F'))))) {
FATAL("Unable to read chunk size length:\n%s", STR(buffer));
return false;
}
}
//7. Test the newly extracted chunk size
if (chunkSizeSize == 0) {
return true;
}
//8. Get its actual value and test it as well
chunkSize = strtol((char *) pBuffer, NULL, 16);
if (chunkSize > HTTP_MAX_CHUNK_SIZE) {
FATAL("Chunk size too large. Maximum allowed is %" PRIu32 " and we got %" PRIu32,
(uint32_t) HTTP_MAX_CHUNK_SIZE, chunkSize);
return false;
}
//9. Now, we know the chunk size... do we have enough data?
if (GETAVAILABLEBYTESCOUNT(buffer) <
chunkSizeSize //length of the chunk size string
- 2 //substract the 0x particle
+ 2 //the \r\n that follows the chunk size string
+ chunkSize //chunk size itself
+ 2 //the \r\n that follows the data chunk
) {
return true;
}
//10. Update the session decoded bytes count and decoded bytes count
_sessionDecodedBytesCount += chunkSize;
_decodedBytesCount += chunkSize;
if (chunkSize != 0) {
//11. Make the copy
_contentLength += chunkSize;
_inputBuffer.ReadFromBuffer(GETIBPOINTER(buffer) + chunkSizeSize - 2 + 2, chunkSize);
} else {
//12. This was the last chunk (0 bytes size)
_lastChunk = true;
}
//12. Call the near protocol
if (!_pNearProtocol->SignalInputData(_inputBuffer)) {
FATAL("Unable to call the next protocol in stack");
return false;
}
//13. Ignore the bytes from the input buffer
DEBUG_HTTP("available bytes before ignore: %" PRIu32, GETAVAILABLEBYTESCOUNT(buffer));
// if (GETAVAILABLEBYTESCOUNT(buffer) == ((uint32_t) chunkSizeSize - 2 + 2 + chunkSize + 2)) {
// DEBUG_HTTP("%s", STR(buffer));
// }
buffer.Ignore((uint32_t) chunkSizeSize - 2 + 2 + chunkSize + 2);
DEBUG_HTTP("available bytes after ignore: %" PRIu32, GETAVAILABLEBYTESCOUNT(buffer));
//14. reset the state if necessary
if (TransferCompleted()) {
_headers.Reset();
_chunkedContent = false;
_lastChunk = false;
_contentLength = 0;
_state = HTTP_STATE_HEADERS;
_sessionDecodedBytesCount = 0;
return true;
}
}
return true;
}
bool BaseHTTPProtocol::ParseHeaders(IOBuffer& buffer) {
//1. We have to have at least 4 bytes (double \r\n)
if (GETAVAILABLEBYTESCOUNT(buffer) < 4) {
return true;
}
//2. Detect the headers boundaries
uint32_t headersSize = 0;
bool markerFound = false;
uint8_t *pBuffer = GETIBPOINTER(buffer);
for (uint32_t i = 0; i <= GETAVAILABLEBYTESCOUNT(buffer) - 4; i++) {
if ((pBuffer[i] == 0x0d)
&& (pBuffer[i + 1] == 0x0a)
&& (pBuffer[i + 2] == 0x0d)
&& (pBuffer[i + 3] == 0x0a)) {
markerFound = true;
headersSize = i;
break;
}
if (i >= HTTP_MAX_HEADERS_SIZE) {
FATAL("Headers section too long");
return false;
}
}
//3. Are the boundaries correct?
//Do we have enough data to parse the headers?
if (headersSize == 0) {
if (markerFound)
return false;
else
return true;
}
//4. Get the raw headers and plit it into lines
string rawHeaders = string((char *) GETIBPOINTER(buffer), headersSize);
vector<string> lines;
split(rawHeaders, "\r\n", lines);
if (lines.size() == 0) {
FATAL("Incorrect HTTP request");
return false;
}
//4. Get the fisrt line and parse it. This is either a status code
//for a previous request made by us, or the request that we just received
if (!ParseFirstLine(lines[0], _headers[HTTP_FIRST_LINE])) {
FATAL("Unable to parse the first line");
return false;
}
//5. Consider the rest of the lines as key: value pairs and store them
//0. Reset the headers
_headers[HTTP_HEADERS].IsArray(false);
for (uint32_t i = 1; i < lines.size(); i++) {
string line = lines[i];
string::size_type splitterPos = line.find(": ");
if ((splitterPos == string::npos)
|| (splitterPos == 0)
|| (splitterPos == line.size() - 2)) {
FATAL("Invalid header line");
return false;
}
_headers[HTTP_HEADERS][line.substr(0, splitterPos)] = line.substr(splitterPos + 2, string::npos);
}
//6. default a transfer type to Content-Length: 0 if necessary
if ((!_headers[HTTP_HEADERS].HasKey(HTTP_HEADERS_CONTENT_LENGTH, false)) &&
(!_headers[HTTP_HEADERS].HasKey(HTTP_HEADERS_TRANSFER_ENCODING, false))) {
_headers[HTTP_HEADERS][HTTP_HEADERS_CONTENT_LENGTH] = "0";
}
//7. read the transfer type and set this request or response flags
if (_headers[HTTP_HEADERS].HasKey(HTTP_HEADERS_CONTENT_LENGTH, false)) {
string contentLengthString = _headers[HTTP_HEADERS].GetValue(
HTTP_HEADERS_CONTENT_LENGTH, false);
replace(contentLengthString, " ", "");
if (!isNumeric(contentLengthString)) {
FATAL("Invalid HTTP headers:\n%s", STR(_headers.ToString()));
return false;
}
_contentLength = atoi(STR(contentLengthString));
_chunkedContent = false;
_lastChunk = false;
} else if (_headers[HTTP_HEADERS].HasKey(HTTP_HEADERS_TRANSFER_ENCODING, false)) {
if (lowerCase(_headers[HTTP_HEADERS].GetValue(HTTP_HEADERS_TRANSFER_ENCODING, false)) !=
lowerCase(HTTP_HEADERS_TRANSFER_ENCODING_CHUNKED)) {
FATAL("The only supported %s is %s",
HTTP_HEADERS_TRANSFER_ENCODING,
HTTP_HEADERS_TRANSFER_ENCODING_CHUNKED);
return false;
}
_chunkedContent = true;
_lastChunk = false;
_contentLength = 0;
}
//7. Advance the state and ignore the headers part from the buffer
_state = HTTP_STATE_PAYLOAD;
buffer.Ignore(headersSize + 4);
return Authenticate();
}
bool OutboundRTMPProtocol::PerformHandshakeStage2(IOBuffer &inputBuffer,
bool encrypted) {
if (encrypted || _pProtocolHandler->ValidateHandshake()) {
if (!VerifyServer(inputBuffer)) {
FATAL("Unable to verify server");
return false;
}
}
uint8_t *pInputBuffer = GETIBPOINTER(inputBuffer) + 1;
uint32_t serverDHOffset = GetDHOffset(pInputBuffer, _usedScheme);
if (_pDHWrapper == NULL) {
FATAL("dh wrapper not initialized");
return false;
}
DEBUG_HANDSHAKE("CLIENT: 1. serverDHOffset: %" PRIu32 "; _usedScheme: %" PRIu8 "; serverPublicKey: %s",
serverDHOffset,
_usedScheme,
STR(hex(pInputBuffer + serverDHOffset, 128)));
if (!_pDHWrapper->CreateSharedKey(pInputBuffer + serverDHOffset, 128)) {
FATAL("Unable to create shared key");
return false;
}
uint8_t secretKey[128];
if (!_pDHWrapper->CopySharedKey(secretKey, sizeof (secretKey))) {
FATAL("Unable to compute shared");
return false;
}
DEBUG_HANDSHAKE("CLIENT: 2. secretKey: %s", STR(hex(secretKey, 128)));
if (encrypted) {
_pKeyIn = new RC4_KEY;
_pKeyOut = new RC4_KEY;
InitRC4Encryption(
secretKey,
(uint8_t*) & pInputBuffer[serverDHOffset],
_pClientPublicKey,
_pKeyIn,
_pKeyOut);
uint8_t data[1536];
RC4(_pKeyIn, 1536, data, data);
RC4(_pKeyOut, 1536, data, data);
}
delete _pDHWrapper;
_pDHWrapper = NULL;
uint32_t serverDigestOffset = GetDigestOffset(pInputBuffer, _usedScheme);
DEBUG_HANDSHAKE("CLIENT: 3. serverDigestOffset: %" PRIu32 "; _usedScheme: %" PRIu8, serverDigestOffset, _usedScheme);
if (_pOutputBuffer == NULL) {
_pOutputBuffer = new uint8_t[1536];
} else {
delete[] _pOutputBuffer;
_pOutputBuffer = new uint8_t[1536];
}
for (uint32_t i = 0; i < 1536; i++) {
_pOutputBuffer[i] = rand() % 256;
}
uint8_t * pChallangeKey = new uint8_t[512];
HMACsha256(pInputBuffer + serverDigestOffset, 32, genuineFPKey, 62, pChallangeKey);
uint8_t * pDigest = new uint8_t[512];
HMACsha256(_pOutputBuffer, 1536 - 32, pChallangeKey, 32, pDigest);
memcpy(_pOutputBuffer + 1536 - 32, pDigest, 32);
DEBUG_HANDSHAKE("CLIENT: 4. clientChallange: %s", STR(hex(pDigest, 32)));
delete[] pChallangeKey;
delete[] pDigest;
_outputBuffer.ReadFromBuffer(_pOutputBuffer, 1536);
delete[] _pOutputBuffer;
_pOutputBuffer = NULL;
_rtmpState = RTMP_STATE_DONE;
return true;
}
bool BaseInFileStream::SendCodecs() {
//1. Read the first frame
MediaFrame frame1;
if (!_pSeekFile->SeekTo(_framesBaseOffset + 0 * sizeof (MediaFrame))) {
FATAL("Unablt to seek inside seek file");
return false;
}
if (!_pSeekFile->ReadBuffer((uint8_t *) & frame1, sizeof (MediaFrame))) {
FATAL("Unable to read frame from seeking file");
return false;
}
//2. Read the second frame
MediaFrame frame2;
if (!_pSeekFile->SeekTo(_framesBaseOffset + 1 * sizeof (MediaFrame))) {
FATAL("Unablt to seek inside seek file");
return false;
}
if (!_pSeekFile->ReadBuffer((uint8_t *) & frame2, sizeof (MediaFrame))) {
FATAL("Unable to read frame from seeking file");
return false;
}
//3. Read the current frame to pickup the timestamp from it
MediaFrame currentFrame;
if (!_pSeekFile->SeekTo(_framesBaseOffset + _currentFrameIndex * sizeof (MediaFrame))) {
FATAL("Unablt to seek inside seek file");
return false;
}
if (!_pSeekFile->ReadBuffer((uint8_t *) & currentFrame, sizeof (MediaFrame))) {
FATAL("Unable to read frame from seeking file");
return false;
}
//4. Is the first frame a codec setup?
//If not, the second is not a codec setup for sure
if (!frame1.isBinaryHeader) {
_audioVideoCodecsSent = true;
return true;
}
//5. Build the buffer for the first frame
IOBuffer buffer;
if (!BuildFrame(_pFile, frame1, buffer)) {
FATAL("Unable to build the frame");
return false;
}
//6. Do the feedeng with the first frame
if (!_pOutStreams->info->FeedData(
GETIBPOINTER(buffer), //pData
GETAVAILABLEBYTESCOUNT(buffer), //dataLength
0, //processedLength
GETAVAILABLEBYTESCOUNT(buffer), //totalLength
currentFrame.absoluteTime, //absoluteTimestamp
frame1.type == MEDIAFRAME_TYPE_AUDIO //isAudio
)) {
FATAL("Unable to feed audio data");
return false;
}
//7. Is the second frame a codec setup?
if (!frame2.isBinaryHeader) {
_audioVideoCodecsSent = true;
return true;
}
//8. Build the buffer for the second frame
buffer.IgnoreAll();
if (!BuildFrame(_pFile, frame2, buffer)) {
FATAL("Unable to build the frame");
return false;
}
//9. Do the feedeng with the second frame
if (!_pOutStreams->info->FeedData(
GETIBPOINTER(buffer), //pData
GETAVAILABLEBYTESCOUNT(buffer), //dataLength
0, //processedLength
GETAVAILABLEBYTESCOUNT(buffer), //totalLength
currentFrame.absoluteTime, //absoluteTimestamp
frame2.type == MEDIAFRAME_TYPE_AUDIO //isAudio
)) {
FATAL("Unable to feed audio data");
return false;
}
//10. Done
_audioVideoCodecsSent = true;
return true;
}
bool BaseInFileStream::Feed() {
//1. Are we in paused state?
if (_paused)
return true;
//2. First, send audio and video codecs
if (!_audioVideoCodecsSent) {
if (!SendCodecs()) {
FATAL("Unable to send audio codec");
return false;
}
}
//2. Determine if the client has enough data on the buffer and continue
//or stay put
uint32_t elapsedTime = (uint32_t) (time(NULL) - _startFeedingTime);
if ((int32_t) _totalSentTime - (int32_t) elapsedTime >= _clientSideBufferLength) {
return true;
}
//3. Test to see if we have sent the last frame
if (_currentFrameIndex >= _totalFrames) {
FINEST("Done streaming file");
_pOutStreams->info->SignalStreamCompleted();
_paused = true;
return true;
}
//FINEST("_totalSentTime: %.2f; _playLimit: %.2f", (double) _totalSentTime, _playLimit);
if (_playLimit >= 0) {
if (_playLimit < (double) _totalSentTime) {
FINEST("Done streaming file");
_pOutStreams->info->SignalStreamCompleted();
_paused = true;
return true;
}
}
//4. Read the current frame from the seeking file
if (!_pSeekFile->SeekTo(_framesBaseOffset + _currentFrameIndex * sizeof (MediaFrame))) {
FATAL("Unablt to seek inside seek file");
return false;
}
if (!_pSeekFile->ReadBuffer((uint8_t *) & _currentFrame, sizeof (_currentFrame))) {
FATAL("Unable to read frame from seeking file");
return false;
}
//5. Take care of metadata
if (_currentFrame.type == MEDIAFRAME_TYPE_DATA) {
_currentFrameIndex++;
if (!FeedMetaData(_pFile, _currentFrame)) {
FATAL("Unable to feed metadata");
return false;
}
return Feed();
}
//6. get our hands on the correct buffer, depending on the frame type: audio or video
IOBuffer &buffer = _currentFrame.type == MEDIAFRAME_TYPE_AUDIO ? _audioBuffer : _videoBuffer;
//7. Build the frame
if (!BuildFrame(_pFile, _currentFrame, buffer)) {
FATAL("Unable to build the frame");
return false;
}
//8. Compute the timestamp
_totalSentTime = (uint32_t) (_currentFrame.absoluteTime / 1000) - _totalSentTimeBase;
//9. Do the feedeng
if (!_pOutStreams->info->FeedData(
GETIBPOINTER(buffer), //pData
GETAVAILABLEBYTESCOUNT(buffer), //dataLength
0, //processedLength
GETAVAILABLEBYTESCOUNT(buffer), //totalLength
(uint32_t) _currentFrame.absoluteTime, //absoluteTimestamp
_currentFrame.type == MEDIAFRAME_TYPE_AUDIO //isAudio
)) {
FATAL("Unable to feed audio data");
return false;
}
//10. Discard the data
buffer.IgnoreAll();
//11. Increment the frame index
_currentFrameIndex++;
//12. Done. We either feed again if frame length was 0
//or just return true
if (_currentFrame.length == 0) {
return Feed();
} else {
return true;
}
}