stuff-from-scratch/src/network/sockets/UnixSocketInterface.cpp
2022-05-18 08:42:44 +01:00

146 lines
3.7 KiB
C++

#include "UnixSocketInterface.h"
#include "HttpResponse.h"
#include "HttpMessageHandler.h"
#include <iostream>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
UnixSocketInterface::UnixSocketInterface()
: mBufferSize(1024)
{
mMessageHandler = std::make_unique<HttpMessageHandler>();
}
std::unique_ptr<UnixSocketInterface> UnixSocketInterface::Create()
{
return std::make_unique<UnixSocketInterface>();
}
UnixSocketInterface::~UnixSocketInterface()
{
}
void UnixSocketInterface::InitializeSocket(const SocketPtr& socketPtr, const std::string& address)
{
auto handle = ::socket(AF_INET, SOCK_STREAM, 0);
socketPtr->SetHandle(handle);
if (!address.empty())
{
socketPtr->setAddress(address);
}
}
void UnixSocketInterface::Write(const SocketPtr& socket, const std::string& message)
{
if(socket->GetHandle() < 0)
{
std::cerr << "Error opening socket" << std::endl;
return;
}
const auto port = static_cast<int>(socket->GetPort());
struct sockaddr_in serv_addr;
memset(&serv_addr, 0, sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
inet_aton(socket->getAddress().c_str(), &serv_addr.sin_addr);
serv_addr.sin_port = htons(port);
int result = connect(socket->GetHandle(), (struct sockaddr *)&serv_addr, sizeof(serv_addr));
if(result< 0)
{
std::cerr << "Error connecting to socket" << std::endl;
return;
}
auto n = write(socket->GetHandle(), message.c_str(), message.length());
if (n < 0)
{
std::cerr << "Error on write" << std::endl;
return;
}
char buffer[mBufferSize] = {0};
int res = read(socket->GetHandle(), buffer, mBufferSize);
if (res < 0)
{
std::cerr << "Error on read" << std::endl;
return;
}
socket->SetMessage(buffer);
std::cout << "Here is the message: " << buffer << std::endl;
}
void UnixSocketInterface::Listen(const SocketPtr& socket)
{
if(socket->GetHandle() < 0)
{
std::cerr << "Error opening socket" << std::endl;
return;
}
const auto port = static_cast<int>(socket->GetPort());
struct sockaddr_in serv_addr;
memset(&serv_addr, 0, sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr = INADDR_ANY;
serv_addr.sin_port = htons(port);
int result = bind(socket->GetHandle(), (struct sockaddr *)&serv_addr, sizeof(serv_addr));
if(result< 0)
{
std::cerr << "Error binding socket" << std::endl;
return;
}
listen(socket->GetHandle(), 5);
}
void UnixSocketInterface::Run(const SocketPtr& socket)
{
if(socket->GetHandle() < 0)
{
std::cerr << "Error opening socket" << std::endl;
return;
}
struct sockaddr_in cli_addr;
socklen_t clilen = sizeof(cli_addr);
while(true)
{
const auto new_socket_handle = accept(socket->GetHandle(), (struct sockaddr *) &cli_addr, &clilen);
if (new_socket_handle < 0)
{
std::cerr << "Error on accept" << std::endl;
return;
}
char buffer[mBufferSize] = {0};
int n = read(new_socket_handle, buffer, mBufferSize);
if (n < 0)
{
std::cerr << "Error on read" << std::endl;
return;
}
socket->SetMessage(buffer);
std::cout << "Here is the message: " << buffer << std::endl;
const auto response = mMessageHandler->onMessage(buffer);
n = write(new_socket_handle, response.c_str(), response.length());
if (n < 0)
{
std::cerr << "Error on write" << std::endl;
return;
}
close(new_socket_handle);
}
}