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// Douglas Thrift |
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// |
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// CCS Computer Science |
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// |
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// Windows Finger Daemon |
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#include <windows.h> |
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#include <tchar.h> |
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#include <signal.h> |
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#include <wtsapi32.h> |
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#include <lm.h> |
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|
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#include <iostream> |
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#include <string> |
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#include <sstream> |
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#include <vector> |
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#include <set> |
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|
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inline std::string Utf8(const std::wstring &wstring) |
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{ |
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std::string string(::WideCharToMultiByte(CP_UTF8, 0, wstring.data(), int(wstring.size()), NULL, 0, NULL, NULL), '\0'); |
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|
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::WideCharToMultiByte(CP_UTF8, 0, wstring.data(), int(wstring.size()), const_cast<LPSTR>(string.data()), int(string.size()), NULL, NULL); |
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return string; |
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} |
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class Finger |
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{ |
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private: |
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struct Login |
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{ |
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std::string login, name, session; |
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Login(const std::wstring &login, const std::wstring &session) : login(Utf8(login)), session(Utf8(session)) |
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{ |
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USER_INFO_11 *info; |
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::NetUserGetInfo(NULL, login.c_str(), 11, reinterpret_cast<LPBYTE *>(&info)); |
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name = Utf8(std::wstring(info->usri11_full_name).substr(0, 20)); |
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::NetApiBufferFree(info); |
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} |
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bool operator<(const Login &login) const |
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{ |
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if (this->login == login.login) |
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return session < login.session; |
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else |
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return this->login < login.login; |
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} |
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}; |
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std::ostringstream stream; |
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std::set<Login> logins; |
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|
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public: |
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Finger(bool full) |
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{ |
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PWTS_SESSION_INFO sessions; |
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DWORD count; |
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::WTSEnumerateSessions(WTS_CURRENT_SERVER_HANDLE, 0, 1, &sessions, &count); |
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|
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for (PWTS_SESSION_INFO session(sessions); session != sessions + count; ++session) |
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{ |
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LPTSTR name; |
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DWORD size; |
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::WTSQuerySessionInformation(WTS_CURRENT_SERVER_HANDLE, session->SessionId, WTSUserName, &name, &size); |
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|
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if (!std::wstring(name).empty()) |
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{ |
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LPTSTR session_; |
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|
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::WTSQuerySessionInformation(WTS_CURRENT_SERVER_HANDLE, session->SessionId, WTSWinStationName, &session_, &size); |
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|
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Login login(name, session_); |
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::WTSFreeMemory(session_); |
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logins.insert(login); |
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} |
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::WTSFreeMemory(name); |
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} |
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::WTSFreeMemory(sessions); |
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if (!full) |
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{ |
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stream << "Login\t\tName" << std::string(17, ' ') << "Session\r\n"; |
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for (std::set<Login>::const_iterator login(logins.begin()); login != logins.end(); ++login) |
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stream << login->login << std::string(16 - login->login.size(), ' ') << login->name << std::string(21 - login->name.size(), ' ') << login->session << "\r\n"; |
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} |
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} |
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Finger(const std::string &name) |
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{ |
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//NetQueryDisplayInformation |
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//NetUserGetInfo |
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} |
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inline operator std::string() |
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{ |
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return stream.str(); |
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} |
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}; |
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LPTSTR name; |
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SERVICE_STATUS status; |
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SERVICE_STATUS_HANDLE handle; |
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HANDLE stop; |
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WSADATA data; |
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std::vector<HANDLE> threads; |
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|
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void FingerDaemon(); |
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DWORD WINAPI FingerListen(LPVOID server_); |
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DWORD WINAPI FingerDo(LPVOID client_); |
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void FingerStop(int); |
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void WINAPI FingerMain(DWORD argc, LPTSTR *argv); |
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void WINAPI FingerControl(DWORD control); |
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int _tmain(int argc, TCHAR *argv[]) |
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{ |
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SERVICE_TABLE_ENTRY entry[] = { { TEXT("CCS Finger Daemon"), LPSERVICE_MAIN_FUNCTION(FingerMain) }, { NULL, NULL } }; |
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|
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if (!::StartServiceCtrlDispatcher(entry)) |
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{ |
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DWORD error(::GetLastError()); |
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switch (error) |
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{ |
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case ERROR_FAILED_SERVICE_CONTROLLER_CONNECT: |
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goto go; |
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case ERROR_INVALID_DATA: |
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std::cerr << "ERROR_INVALID_DATA" << std::endl; |
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break; |
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case ERROR_SERVICE_ALREADY_RUNNING: |
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std::cerr << "ERROR_SERVICE_ALREADY_RUNNING" << std::endl; |
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break; |
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default: |
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std::cerr << error << std::endl; |
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} |
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return 1; |
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} |
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return 0; |
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go: |
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stop = ::CreateEvent(NULL, TRUE, FALSE, NULL); |
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::signal(SIGINT, FingerStop); |
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try |
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{ |
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FingerDaemon(); |
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} |
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catch (...) {} |
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return 0; |
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} |
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void FingerDaemon() |
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{ |
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::WSAStartup(MAKEWORD(2, 0), &data); |
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// |
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SOCKET server(::socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)); |
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SOCKADDR_IN service; |
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service.sin_family = AF_INET; |
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service.sin_addr.s_addr = inet_addr("0.0.0.0"); |
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service.sin_port = htons(79); |
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::bind(server, (SOCKADDR *)(&service), sizeof (service)); |
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::listen(server, SOMAXCONN); |
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threads.push_back(::CreateThread(NULL, 0, FingerListen, &server, 0, NULL)); |
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|
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while(::WaitForSingleObject(stop, 1000) != WAIT_OBJECT_0); |
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// |
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::closesocket(server); |
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|
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::WSACleanup(); |
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} |
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|
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DWORD WINAPI FingerListen(LPVOID server_) |
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{ |
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SOCKET &server(*reinterpret_cast<SOCKET *>(server_)); |
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while (true) |
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{ |
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SOCKET client(accept(server, NULL, NULL)); |
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threads.push_back(::CreateThread(NULL, 0, FingerDo, &client, 0, NULL)); |
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} |
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return 0; |
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} |
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DWORD WINAPI FingerDo(LPVOID client_) |
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{ |
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SOCKET &client(*reinterpret_cast<SOCKET *>(client_)); |
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char buffer[1024]; |
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std::istringstream stream(std::string(buffer, ::recv(client, buffer, sizeof buffer, 0))); |
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std::string line; |
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std::getline(stream, line); |
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|
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stream.str(line); |
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std::getline(stream, line, '\r'); |
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stream.str(line); |
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|
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std::string name; |
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bool full(false); |
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while (stream >> line) |
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if (line == "/W") |
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full = true; |
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else |
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name = line; |
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|
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std::string finger(name.empty() ? Finger(full) : Finger(name)); |
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|
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::send(client, finger.data(), int(finger.size()), 0); |
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::closesocket(client); |
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return 0; |
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} |
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void FingerStop(int) |
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{ |
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::SetEvent(stop); |
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} |
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void WINAPI FingerMain(DWORD argc, LPTSTR *argv) |
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{ |
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name = argv[0]; |
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handle = RegisterServiceCtrlHandler(name, LPHANDLER_FUNCTION(FingerControl)); |
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stop = ::CreateEvent(NULL, TRUE, FALSE, NULL); |
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|
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// |
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status.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN; |
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status.dwServiceType = SERVICE_WIN32_OWN_PROCESS; |
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status.dwServiceSpecificExitCode = 0; |
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status.dwCurrentState = SERVICE_RUNNING; |
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status.dwWin32ExitCode = NO_ERROR; |
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status.dwCheckPoint = 0; |
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status.dwWaitHint = 0; |
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::SetServiceStatus(handle, &status); |
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try |
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{ |
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FingerDaemon(); |
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} |
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catch (...) {} |
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status.dwCurrentState = SERVICE_STOPPED; |
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status.dwWin32ExitCode = NO_ERROR; |
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status.dwCheckPoint = 0; |
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status.dwWaitHint = 0; |
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::SetServiceStatus(handle, &status); |
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} |
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void WINAPI FingerControl(DWORD control) |
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{ |
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switch (control) |
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{ |
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case SERVICE_CONTROL_STOP: |
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case SERVICE_CONTROL_SHUTDOWN: |
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status.dwCurrentState = SERVICE_STOP_PENDING; |
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::SetEvent(stop); |
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break; |
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case SERVICE_CONTROL_INTERROGATE: |
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break; |
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} |
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::SetServiceStatus(handle, &status); |
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} |