* Author : Maxim Mamontov <faust@stargazer.dp.ua>
*/
+#include "listener.h"
+
+#include "stg/scriptexecuter.h"
+#include "stg/locker.h"
+#include "stg/common.h"
+#include "stg/const.h"
+
+#include <sstream>
+#include <algorithm>
+#include <chrono>
+#include <csignal>
+#include <cerrno>
+#include <ctime>
+#include <cstring>
+
#include <arpa/inet.h>
#include <sys/uio.h> // readv
#include <sys/types.h> // for historical versions of BSD
#include <netinet/in.h>
#include <unistd.h>
-#include <csignal>
-#include <ctime>
-#include <cstring>
-#include <sstream>
-#include <algorithm>
-
-#include "listener.h"
-#include "script_executer.h"
-#include "stg_locker.h"
-#include "common.h"
+void InitEncrypt(BLOWFISH_CTX * ctx, const std::string & password);
//-----------------------------------------------------------------------------
LISTENER::LISTENER()
- : WriteServLog(GetStgLogger()),
+ : WriteServLog(STG::Logger::get()),
port(0),
- running(false),
receiverStopped(true),
processorStopped(true),
userTimeout(0),
- listenSocket(0)
+ listenSocket(0),
+ version("rscriptd listener v.1.2")
{
-version = "rscriptd listener v.1.2";
-
-pthread_mutex_init(&mutex, NULL);
}
//-----------------------------------------------------------------------------
-void LISTENER::SetPassword(const string & p)
+void LISTENER::SetPassword(const std::string & p)
{
password = p;
printfd(__FILE__, "Encryption initiated with password \'%s\'\n", password.c_str());
bool LISTENER::Start()
{
printfd(__FILE__, "LISTENER::Start()\n");
-running = true;
if (PrepareNet())
{
return true;
}
-if (receiverStopped)
- {
- if (pthread_create(&receiverThread, NULL, Run, this))
- {
- errorStr = "Cannot create thread.";
- return true;
- }
- }
+if (!m_receiverThread.joinable())
+ m_receiverThread = std::jthread([this](auto token){ Run(std::move(token)); });
-if (processorStopped)
- {
- if (pthread_create(&processorThread, NULL, RunProcessor, this))
- {
- errorStr = "Cannot create thread.";
- return true;
- }
- }
+if (!m_processorThread.joinable())
+ m_processorThread = std::jthread([this](auto token){ RunProcessor(std::move(token)); });
errorStr = "";
//-----------------------------------------------------------------------------
bool LISTENER::Stop()
{
-running = false;
+m_receiverThread.request_stop();
+m_processorThread.request_stop();
printfd(__FILE__, "LISTENER::Stop()\n");
-usleep(500000);
+std::this_thread::sleep_for(std::chrono::milliseconds(500));
if (!processorStopped)
{
//5 seconds to thread stops itself
for (int i = 0; i < 25 && !processorStopped; i++)
- {
- usleep(200000);
- }
+ std::this_thread::sleep_for(std::chrono::milliseconds(200));
//after 5 seconds waiting thread still running. now killing it
if (!processorStopped)
{
//TODO pthread_cancel()
- if (pthread_kill(processorThread, SIGINT))
- {
- errorStr = "Cannot kill thread.";
- return true;
- }
+ m_processorThread.detach();
printfd(__FILE__, "LISTENER killed Timeouter\n");
}
}
{
//5 seconds to thread stops itself
for (int i = 0; i < 25 && !receiverStopped; i++)
- {
- usleep(200000);
- }
+ std::this_thread::sleep_for(std::chrono::milliseconds(200));
//after 5 seconds waiting thread still running. now killing it
if (!receiverStopped)
{
//TODO pthread_cancel()
- if (pthread_kill(receiverThread, SIGINT))
- {
- errorStr = "Cannot kill thread.";
- return true;
- }
+ m_receiverThread.detach();
printfd(__FILE__, "LISTENER killed Run\n");
}
}
-pthread_join(receiverThread, NULL);
-pthread_join(processorThread, NULL);
-
-pthread_mutex_destroy(&mutex);
+if (receiverStopped)
+ m_receiverThread.join();
+if (processorStopped)
+ m_processorThread.join();
FinalizeNet();
-std::for_each(users.begin(), users.end(), DisconnectUser(*this));
+for (const auto& user : users)
+ Disconnect(user);
printfd(__FILE__, "LISTENER::Stoped successfully.\n");
return false;
}
//-----------------------------------------------------------------------------
-void * LISTENER::Run(void * d)
-{
-LISTENER * ia = static_cast<LISTENER *>(d);
-
-ia->Runner();
-
-return NULL;
-}
-//-----------------------------------------------------------------------------
-void LISTENER::Runner()
+void LISTENER::Run(std::stop_token token)
{
receiverStopped = false;
-while (running)
- {
- RecvPacket();
- }
+while (!token.stop_requested())
+ RecvPacket(token);
receiverStopped = true;
}
//-----------------------------------------------------------------------------
-void * LISTENER::RunProcessor(void * d)
-{
-LISTENER * ia = static_cast<LISTENER *>(d);
-
-ia->ProcessorRunner();
-
-return NULL;
-}
-//-----------------------------------------------------------------------------
-void LISTENER::ProcessorRunner()
+void LISTENER::RunProcessor(std::stop_token token)
{
processorStopped = false;
-while (running)
- {
- usleep(500000);
+while (!token.stop_requested())
+{
+ std::this_thread::sleep_for(std::chrono::milliseconds(500));
if (!pending.empty())
ProcessPending();
ProcessTimeouts();
- }
+}
processorStopped = true;
}
return true;
}
-printfd(__FILE__, "Port: %d\n", port);
-
struct sockaddr_in listenAddr;
listenAddr.sin_family = AF_INET;
listenAddr.sin_port = htons(port);
listenAddr.sin_addr.s_addr = inet_addr("0.0.0.0");
-if (bind(listenSocket, (struct sockaddr*)&listenAddr, sizeof(listenAddr)) < 0)
+if (bind(listenSocket, reinterpret_cast<sockaddr*>(&listenAddr), sizeof(listenAddr)) < 0)
{
errorStr = "LISTENER: Bind failed.";
return true;
return false;
}
//-----------------------------------------------------------------------------
-bool LISTENER::RecvPacket()
+bool LISTENER::RecvPacket(const std::stop_token& token)
{
struct iovec iov[2];
char buffer[RS_MAX_PACKET_LEN];
-RS_PACKET_HEADER packetHead;
+RS::PACKET_HEADER packetHead;
iov[0].iov_base = reinterpret_cast<char *>(&packetHead);
iov[0].iov_len = sizeof(packetHead);
iov[1].iov_base = buffer;
-iov[1].iov_len = sizeof(buffer);
+iov[1].iov_len = sizeof(buffer) - sizeof(packetHead);
size_t dataLen = 0;
while (dataLen < sizeof(buffer))
{
if (!WaitPackets(listenSocket))
{
- if (!running)
+ if (token.stop_requested())
return false;
continue;
}
return true;
}
-std::string userLogin((char *)packetHead.login);
-PendingData data;
-data.login = userLogin;
-data.ip = ntohl(packetHead.ip);
-data.id = ntohl(packetHead.id);
+std::string userLogin(reinterpret_cast<const char*>(packetHead.login));
+PendingData pd;
+pd.data.login = userLogin;
+pd.data.ip = ntohl(packetHead.ip);
+pd.data.id = ntohl(packetHead.id);
if (packetHead.packetType == RS_ALIVE_PACKET)
{
- data.type = PendingData::ALIVE;
+ pd.type = PendingData::ALIVE;
}
else if (packetHead.packetType == RS_CONNECT_PACKET)
{
- data.type = PendingData::CONNECT;
- if (GetParams(buffer, data))
+ pd.type = PendingData::CONNECT;
+ if (GetParams(buffer, pd.data))
{
return true;
}
}
else if (packetHead.packetType == RS_DISCONNECT_PACKET)
{
- data.type = PendingData::DISCONNECT;
- if (GetParams(buffer, data))
+ pd.type = PendingData::DISCONNECT;
+ if (GetParams(buffer, pd.data))
{
return true;
}
}
+else
+ return true;
-STG_LOCKER lock(&mutex, __FILE__, __LINE__);
-pending.push_back(data);
+std::lock_guard lock(m_mutex);
+pending.push_back(pd);
return false;
}
//-----------------------------------------------------------------------------
bool LISTENER::GetParams(char * buffer, UserData & data)
{
-RS_PACKET_TAIL packetTail;
+RS::PACKET_TAIL packetTail;
-Decrypt(&ctxS, (char *)&packetTail, buffer, sizeof(packetTail) / 8);
+DecryptString(&packetTail, buffer, sizeof(packetTail), &ctxS);
-if (strncmp((char *)packetTail.magic, RS_ID, RS_MAGIC_LEN))
+if (strncmp(reinterpret_cast<const char*>(packetTail.magic), RS_ID, RS_MAGIC_LEN))
{
printfd(__FILE__, "Invalid crypto magic\n");
return true;
}
-std::stringstream params;
-params << data.login << " "
+std::ostringstream params;
+params << "\"" << data.login << "\" "
<< inet_ntostring(data.ip) << " "
- << ntohl(data.id) << " "
- << (char *)packetTail.params;
+ << data.id << " "
+ << reinterpret_cast<const char*>(packetTail.params);
data.params = params.str();
//-----------------------------------------------------------------------------
void LISTENER::ProcessPending()
{
-printfd(__FILE__, "Pending data size: %d\n", pending.size());
-std::list<PendingData>::iterator it(pending.begin());
-while (it != pending.end())
+auto it = pending.begin();
+size_t count = 0;
+printfd(__FILE__, "Pending: %d\n", pending.size());
+while (it != pending.end() && count < 256)
{
- std::vector<AliveData>::iterator uit(
- std::lower_bound(
- users.begin(),
- users.end(),
- it->login)
- );
+ auto uit = std::lower_bound(users.begin(), users.end(), it->data.login);
if (it->type == PendingData::CONNECT)
{
- if (uit == users.end() || uit->login != it->login)
+ printfd(__FILE__, "Connect packet\n");
+ if (uit == users.end() || uit->data.login != it->data.login)
{
+ printfd(__FILE__, "Connect new user '%s'\n", it->data.login.c_str());
// Add new user
Connect(*it);
- users.insert(uit, AliveData(static_cast<UserData>(*it)));
+ users.insert(uit, AliveData(it->data));
}
- else if (uit->login == it->login)
+ else
{
+ printfd(__FILE__, "Update existing user '%s'\n", it->data.login.c_str());
// Update already existing user
time(&uit->lastAlive);
- uit->params = it->params;
+ uit->data.params = it->data.params;
}
}
else if (it->type == PendingData::ALIVE)
{
- if (uit != users.end() && uit->login == it->login)
+ printfd(__FILE__, "Alive packet\n");
+ if (uit != users.end() && uit->data.login == it->data.login)
{
+ printfd(__FILE__, "Alive user '%s'\n", it->data.login.c_str());
// Update existing user
time(&uit->lastAlive);
}
+ else
+ {
+ printfd(__FILE__, "Alive user '%s' is not found\n", it->data.login.c_str());
+ }
}
else if (it->type == PendingData::DISCONNECT)
{
- if (uit != users.end() && uit->login == it->login.c_str())
+ printfd(__FILE__, "Disconnect packet\n");
+ if (uit != users.end() && uit->data.login == it->data.login.c_str())
{
+ printfd(__FILE__, "Disconnect user '%s'\n", it->data.login.c_str());
// Disconnect existing user
+ uit->data.params = it->data.params;
Disconnect(*uit);
users.erase(uit);
}
+ else
+ {
+ printfd(__FILE__, "Cannot find user '%s' for disconnect\n", it->data.login.c_str());
+ }
}
-
- STG_LOCKER lock(&mutex, __FILE__, __LINE__);
- pending.erase(it++);
+ else
+ {
+ printfd(__FILE__, "Unknown packet type\n");
+ }
+ ++it;
+ ++count;
}
+std::lock_guard lock(m_mutex);
+pending.erase(pending.begin(), it);
}
//-----------------------------------------------------------------------------
void LISTENER::ProcessTimeouts()
{
-const std::vector<AliveData>::iterator it(
- std::stable_partition(
- users.begin(),
- users.end(),
- IsNotTimedOut(userTimeout)
- )
- );
+const auto now = time(nullptr);
+const auto it = std::stable_partition(users.begin(), users.end(), [this, now](const auto& data){ return difftime(now, data.lastAlive) < userTimeout; });
if (it != users.end())
{
printfd(__FILE__, "Total users: %d, users to disconnect: %d\n", users.size(), std::distance(it, users.end()));
- std::for_each(
- it,
- users.end(),
- DisconnectUser(*this)
- );
+ std::for_each(it, users.end(), [this](const auto& user){ Disconnect(user);});
users.erase(it, users.end());
}
}
//-----------------------------------------------------------------------------
-bool LISTENER::Connect(const UserData & data) const
+bool LISTENER::Connect(const PendingData & pd) const
{
-printfd(__FILE__, "Connect %s\n", data.login.c_str());
+printfd(__FILE__, "Connect %s\n", pd.data.login.c_str());
if (access(scriptOnConnect.c_str(), X_OK) == 0)
{
- if (ScriptExec(scriptOnConnect + " " + data.params))
+ if (ScriptExec((scriptOnConnect + " " + pd.data.params).c_str()))
{
WriteServLog("Script %s cannot be executed for an unknown reason.", scriptOnConnect.c_str());
return true;
return false;
}
//-----------------------------------------------------------------------------
-bool LISTENER::Disconnect(const UserData & data) const
+bool LISTENER::Disconnect(const AliveData& ad) const
{
-printfd(__FILE__, "Disconnect %s\n", data.login.c_str());
+printfd(__FILE__, "Disconnect %s\n", ad.data.login.c_str());
if (access(scriptOnDisconnect.c_str(), X_OK) == 0)
{
- if (ScriptExec(scriptOnDisconnect + " " + data.params))
+ if (ScriptExec((scriptOnDisconnect + " " + ad.data.params).c_str()))
{
WriteServLog("Script %s cannot be executed for an unknown reson.", scriptOnDisconnect.c_str());
return true;
return false;
}
//-----------------------------------------------------------------------------
-void LISTENER::InitEncrypt(BLOWFISH_CTX * ctx, const string & password)
+bool LISTENER::CheckHeader(const RS::PACKET_HEADER & header) const
{
-unsigned char keyL[PASSWD_LEN];
-memset(keyL, 0, PASSWD_LEN);
-strncpy((char *)keyL, password.c_str(), PASSWD_LEN);
-Blowfish_Init(ctx, keyL, PASSWD_LEN);
-}
-//-----------------------------------------------------------------------------
-void LISTENER::Decrypt(BLOWFISH_CTX * ctx, char * dst, const char * src, int len8)
-{
-if (dst != src)
- memcpy(dst, src, len8 * 8);
-
-for (int i = 0; i < len8; i++)
- Blowfish_Decrypt(ctx, (uint32_t *)(dst + i * 8), (uint32_t *)(dst + i * 8 + 4));
-}
-//-----------------------------------------------------------------------------
-bool LISTENER::CheckHeader(const RS_PACKET_HEADER & header) const
-{
-if (strncmp((char *)header.magic, RS_ID, RS_MAGIC_LEN))
- {
+if (strncmp(reinterpret_cast<const char*>(header.magic), RS_ID, RS_MAGIC_LEN))
return true;
- }
-if (strncmp((char *)header.protoVer, "02", RS_PROTO_VER_LEN))
- {
+if (strncmp(reinterpret_cast<const char*>(header.protoVer), "02", RS_PROTO_VER_LEN))
return true;
- }
return false;
}
//-----------------------------------------------------------------------------
-bool LISTENER::WaitPackets(int sd) const
+void InitEncrypt(BLOWFISH_CTX * ctx, const std::string & password)
{
-fd_set rfds;
-FD_ZERO(&rfds);
-FD_SET(sd, &rfds);
-
-struct timeval tv;
-tv.tv_sec = 0;
-tv.tv_usec = 500000;
-
-int res = select(sd + 1, &rfds, NULL, NULL, &tv);
-if (res == -1) // Error
- {
- if (errno != EINTR)
- {
- printfd(__FILE__, "Error on select: '%s'\n", strerror(errno));
- }
- return false;
- }
-
-if (res == 0) // Timeout
- {
- return false;
- }
-
-return true;
+char keyL[PASSWD_LEN];
+memset(keyL, 0, PASSWD_LEN);
+strncpy(keyL, password.c_str(), PASSWD_LEN);
+Blowfish_Init(ctx, keyL, PASSWD_LEN);
}
//-----------------------------------------------------------------------------
git.stg.codes / stg.git / blobdiff