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#include <libirc/irc_client.hpp>
#include <libirc/irc_message.hpp>
#include <network/poller.hpp>
#include <utils/scopeguard.hpp>
#include <sys/types.h>
#include <sys/socket.h>
#include <cstring>
#include <netdb.h>
#include <unistd.h>
#include <iostream>
#include <stdexcept>
IrcClient::IrcClient()
{
std::cout << "IrcClient()" << std::endl;
if ((this->socket = ::socket(AF_INET, SOCK_STREAM, 0)) == -1)
throw std::runtime_error("Could not create socket");
}
IrcClient::~IrcClient()
{
std::cout << "~IrcClient()" << std::endl;
}
void IrcClient::on_recv()
{
char buf[4096];
ssize_t size = ::recv(this->socket, buf, 4096, 0);
if (0 == size)
this->on_connection_close();
else if (-1 == static_cast<ssize_t>(size))
throw std::runtime_error("Error reading from socket");
else
{
this->in_buf += std::string(buf, size);
this->parse_in_buffer();
}
}
void IrcClient::on_send()
{
const ssize_t res = ::send(this->socket, this->out_buf.data(), this->out_buf.size(), 0);
if (res == -1)
{
perror("send");
this->close();
}
else
{
this->out_buf = this->out_buf.substr(res, std::string::npos);
if (this->out_buf.empty())
this->poller->stop_watching_send_events(this);
}
}
socket_t IrcClient::get_socket() const
{
return this->socket;
}
void IrcClient::connect(const std::string& address, const std::string& port)
{
std::cout << "Trying to connect to " << address << ":" << port << std::endl;
struct addrinfo hints;
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_flags = 0;
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = 0;
struct addrinfo* addr_res;
const int res = ::getaddrinfo(address.c_str(), port.c_str(), &hints, &addr_res);
// Make sure the alloced structure is always freed at the end of the
// function
utils::ScopeGuard sg([&addr_res](){ freeaddrinfo(addr_res); });
if (res != 0)
{
perror("getaddrinfo");
throw std::runtime_error("getaddrinfo failed");
}
for (struct addrinfo* rp = addr_res; rp; rp = rp->ai_next)
{
std::cout << "One result" << std::endl;
if (::connect(this->socket, rp->ai_addr, rp->ai_addrlen) == 0)
{
std::cout << "Connection success." << std::endl;
this->on_connected();
return ;
}
std::cout << "Connection failed:" << std::endl;
perror("connect");
}
std::cout << "All connection attempts failed." << std::endl;
this->close();
}
void IrcClient::on_connected()
{
}
void IrcClient::on_connection_close()
{
std::cout << "Connection closed by remote server." << std::endl;
this->close();
}
void IrcClient::close()
{
this->poller->remove_socket_handler(this->get_socket());
::close(this->socket);
}
void IrcClient::parse_in_buffer()
{
while (true)
{
auto pos = this->in_buf.find("\r\n");
if (pos == std::string::npos)
break ;
IrcMessage message(this->in_buf.substr(0, pos));
this->in_buf = this->in_buf.substr(pos + 2, std::string::npos);
std::cout << message << std::endl;
}
}
void IrcClient::send_message(IrcMessage&& message)
{
std::string res;
if (!message.prefix.empty())
res += ":" + std::move(message.prefix) + " ";
res += std::move(message.command);
for (const std::string& arg: message.arguments)
{
if (arg.find(" ") != std::string::npos)
{
res += " :" + arg;
break;
}
res += " " + arg;
}
res += "\r\n";
this->out_buf += res;
if (!this->out_buf.empty())
{
this->poller->watch_send_events(this);
}
}
void IrcClient::send_user_command(const std::string& username, const std::string& realname)
{
this->send_message(IrcMessage("USER", {username, "NONE", "NONE", realname}));
}
void IrcClient::send_nick_command(const std::string& nick)
{
this->send_message(IrcMessage("NICK", {nick}));
}
void IrcClient::send_join_command(const std::string& chan_name)
{
this->send_message(IrcMessage("JOIN", {chan_name}));
}
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