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#include "session.hpp"
#include "chatManager.hpp"
#include "log.hpp"
#include "server.hpp"
#include "sessionManager.hpp"
#include <algorithm>
#include <arpa/inet.h>
#include <cerrno>
#include <cstring>
#include <sys/socket.h>
CSession::CSession()
: m_addrLen(sizeof(m_addr)) {
m_sockfd = Hyprutils::OS::CFileDescriptor{accept(g_pServer->getSocket()->get(), reinterpret_cast<sockaddr *>(&m_addr), &m_addrLen)}; // if this is in the init list, it will run before m_addrLen, so it won't work :/
if (!m_sockfd.isValid())
throw std::runtime_error("session: Failed to create socket");
inet_ntop(AF_INET, &m_addr.sin_addr, m_ip, INET_ADDRSTRLEN);
m_port = ntohs(m_addr.sin_port);
log(LOG, "Client {} connected on port {}", m_ip, m_port);
log(TRACE, "session: initialized");
}
CSession::~CSession() {
#ifdef DEBUG
onDisconnect();
#endif
m_sockfd.reset();
log(LOG, "Client {}@{} disconnected", m_name, m_ip);
log(TRACE, "session({}@{}): bye", m_name, m_ip);
}
#ifdef DEBUG
void CSession::onConnect() {
log(LOG, "Client connected");
}
void CSession::onDisconnect() {
log(LOG, "Client disconnected");
}
#endif
void CSession::onErrno(eEventType eventType) {
const auto err = strerror(errno);
switch (eventType) {
case READ:
log(WARN, "Error while reading: {}", err);
case WRITE:
log(WARN, "Error while writing: {}", err);
}
}
#ifdef DEBUG
void CSession::onRecv(const SRecvData &data) {
log(LOG, "Received: {}", data.data);
}
void CSession::onSend(const std::string &msg) {
log(LOG, "Sent: {}", msg);
}
#endif
void CSession::recvLoop() {
while (true) {
auto recvData = read(NFormatter::fmt(NONEWLINE, "{}: ", m_name));
if (!recvData->good)
break;
g_pChatManager->newMessage({.msg = recvData->data, .username = m_name});
}
}
bool CSession::SRecvData::isEmpty() const {
return data.empty() || std::ranges::all_of(data, [](char c) { return std::isspace(c); });
}
void CSession::SRecvData::sanitize() {
if (!data.empty() && data.back() == '\n')
data.pop_back();
if (const auto start = data.find_first_not_of(" \t\r\n"); start != std::string::npos) {
const auto end = data.find_last_not_of(" \t\r\n");
data = data.substr(start, end - start + 1);
} else
data.clear();
}
std::unique_ptr<CSession::SRecvData> CSession::read() {
auto recvData = std::make_unique<SRecvData>();
recvData->data.resize(recvData->size);
ssize_t size = recv(m_sockfd.get(), &recvData->data[0], recvData->size, 0);
if (size < 0) {
recvData->good = false;
onErrno(READ);
} else if (size == 0)
recvData->good = false;
else {
recvData->data.resize(size);
recvData->good = true;
}
#ifdef DEBUG
onRecv(*recvData);
#endif
m_isReading = false;
return recvData;
}
std::unique_ptr<CSession::SRecvData> CSession::read(const std::string &msg) {
write(NONEWLINE, "{}", msg, false);
m_isReading = true;
return read();
}
void CSession::run() {
#ifdef DEBUG
onConnect();
#endif
if (registerSession()) {
for (const auto &chat : g_pChatManager->getChat())
write(g_pChatManager->fmtBroadcastMessage(chat));
recvLoop();
} else
log(LOG, "Client {} exited without even registering", m_ip);
g_pSessionManager->kick(self);
}
bool CSession::registerSession() {
auto recvData = read("Name: ");
if (!recvData->good)
return false;
recvData->sanitize();
if (recvData->isEmpty()) {
write("Name cannot be empty");
return registerSession();
}
if (g_pSessionManager->nameExists(recvData->data)) {
write("Name already exists");
return registerSession();
}
this->m_name = recvData->data;
log(LOG, "Client registered as: {}", m_name);
return true;
}
bool CSession::isValid() {
if (!m_sockfd.isValid() || m_name.empty())
return false;
int err = 0;
socklen_t size = sizeof(err);
return getsockopt(m_sockfd.get(), SOL_SOCKET, SO_ERROR, &err, &size) >= 0 && err == 0;
}
template <typename... Args>
bool CSession::write(std::format_string<Args...> fmt, Args &&...args) {
std::string msg = NFormatter::fmt(NONE, fmt, std::forward<Args>(args)...);
if (m_isReading)
msg.insert(0, "\n");
if (send(m_sockfd.get(), msg.c_str(), msg.size(), 0) < 0) {
onErrno(WRITE);
return false;
}
#ifdef DEBUG
onSend(msg);
#endif
return true;
}
template <typename... Args>
bool CSession::write(eFormatType type, std::format_string<Args...> fmt, Args &&...args) {
std::string msg = NFormatter::fmt(type, fmt, std::forward<Args>(args)...);
if (m_isReading)
msg.insert(0, "\n");
if (send(m_sockfd.get(), msg.c_str(), msg.size(), 0) < 0) {
onErrno(WRITE);
return false;
}
#ifdef DEBUG
onSend(msg);
#endif
return true;
}
bool CSession::write(const std::string &msg) {
return write("{}", msg);
}
const std::string &CSession::getName() const {
return m_name;
}
void CSession::setSelf(std::pair<std::jthread, std::shared_ptr<CSession>> *self) {
this->self = self;
}
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