void MulticastHandler::dispatch(
boost::asio::ip::address senderAddress,
MulticastNetwork::Command command,
char *args,
unsigned char argsSize,
bool forward)
{
typedef MulticastNetwork::Command Command;
m_senderAddress = &senderAddress;
bool valid = false;
if (Command::Candidate == command && sizeof(uint32_t) == argsSize) {
valid = true;
on_candidate(ntohl(*reinterpret_cast<uint32_t*>(args)));
}
else if (Command::ElectGateway == command && 0 == argsSize) {
valid = true;
on_electGateway();
}
else if (Command::Forward == command && 0 < argsSize)
{
valid = true;
on_forward(static_cast<Command>(args[0]), args + 1, argsSize - 1);
}
else if (Command::Gateway == command && 0 == argsSize)
{
valid = true;
on_gateway();
}
else if (Command::Hello == command && sizeof(float) < argsSize) {
valid = true;
uint32_t b = ntohl(*reinterpret_cast<uint32_t*>(args + argsSize - sizeof(float)));
on_hello(std::string(args, argsSize - sizeof(float)),
*reinterpret_cast<float*>(&b));
}
else if (Command::Message == command && 0 < argsSize) {
valid = true;
on_message(std::string(args, argsSize));
}
else if (Command::RemoteGateway == command && 0 == argsSize) {
valid = true;
on_remoteGateway();
}
else if (Command::SearchBlock == command && sizeof(uint32_t) < argsSize) {
valid = true;
on_searchBlock(std::string(args, argsSize - sizeof(uint32_t)),
*reinterpret_cast<uint32_t*>(args + argsSize - sizeof(uint32_t)));
}
else if (Command::SearchFileName == command && 0 < argsSize) {
valid = true;
on_searchFileName(std::string(args, argsSize));
}
else if (Command::SearchFileNameReply == command && 0 < argsSize) {
valid = true;
std::map<std::string, std::pair<float, std::string>> results;
int index = 0;
while (index < argsSize) {
float filesize;
int stringLength = 0;
for (int i = index + Hash::SIZE + sizeof filesize; i < argsSize; i++) {
if (args[i] == '\0') {
break;
}
++stringLength;
}
if (index + stringLength + Hash::SIZE + sizeof filesize >= argsSize) {
break;
}
std::string hash(args + index, Hash::SIZE);
filesize = *reinterpret_cast<float*>(args + index + Hash::SIZE);
std::string filename(args + index + Hash::SIZE + sizeof filesize, stringLength);
results[filename] = std::pair<float, std::string>(filesize, hash);
index += Hash::SIZE + sizeof filesize + stringLength + 1;
}
on_searchFileNameReply(results);
}
if (valid && forward) {
m_gateway->forward(*m_senderAddress, command, args, argsSize);
}
}
bool http_servlet::on_default(request_t& req, response_t& res)
{
return on_hello(req, res);
}
