mirror of https://github.com/Icinga/icinga2.git
155 lines
4.9 KiB
C++
155 lines
4.9 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-present Icinga Development Team (http://www.icinga.org) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "livestatus/listener.h"
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#include "config/configcompilercontext.h"
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#include "base/utility.h"
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#include "base/objectlock.h"
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#include "base/dynamictype.h"
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#include "base/logger_fwd.h"
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#include "base/exception.h"
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#include "base/tcpsocket.h"
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#include "base/unixsocket.h"
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#include "base/networkstream.h"
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#include "base/application.h"
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#include "base/scriptfunction.h"
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#include "base/convert.h"
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using namespace icinga;
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REGISTER_TYPE(LivestatusListener);
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REGISTER_SCRIPTFUNCTION(ValidateSocketType, &LivestatusListener::ValidateSocketType);
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static int l_ClientsConnected = 0;
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static int l_Connections = 0;
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static boost::mutex l_ComponentMutex;
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/**
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* Starts the component.
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*/
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void LivestatusListener::Start(void)
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{
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DynamicObject::Start();
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if (GetSocketType() == "tcp") {
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TcpSocket::Ptr socket = make_shared<TcpSocket>();
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socket->Bind(GetBindHost(), GetBindPort(), AF_INET);
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boost::thread thread(boost::bind(&LivestatusListener::ServerThreadProc, this, socket));
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thread.detach();
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Log(LogInformation, "livestatus", "Created tcp socket listening on host '" + GetBindHost() + "' port '" + GetBindPort() + "'.");
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}
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else if (GetSocketType() == "unix") {
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#ifndef _WIN32
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UnixSocket::Ptr socket = make_shared<UnixSocket>();
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socket->Bind(GetSocketPath());
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/* group must be able to write */
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mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP;
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if (chmod(GetSocketPath().CStr(), mode) < 0) {
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BOOST_THROW_EXCEPTION(posix_error()
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<< boost::errinfo_api_function("chmod")
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<< boost::errinfo_errno(errno)
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<< boost::errinfo_file_name(GetSocketPath()));
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}
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boost::thread thread(boost::bind(&LivestatusListener::ServerThreadProc, this, socket));
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thread.detach();
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Log(LogInformation, "livestatus", "Created unix socket in '" + GetSocketPath() + "'.");
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#else
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/* no unix sockets on windows */
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Log(LogCritical, "livestatus", "Unix sockets are not supported on Windows.");
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return;
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#endif
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}
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}
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int LivestatusListener::GetClientsConnected(void)
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{
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boost::mutex::scoped_lock lock(l_ComponentMutex);
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return l_ClientsConnected;
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}
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int LivestatusListener::GetConnections(void)
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{
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boost::mutex::scoped_lock lock(l_ComponentMutex);
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return l_Connections;
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}
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void LivestatusListener::ServerThreadProc(const Socket::Ptr& server)
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{
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server->Listen();
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for (;;) {
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Socket::Ptr client = server->Accept();
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Log(LogInformation, "livestatus", "Client connected");
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Utility::QueueAsyncCallback(boost::bind(&LivestatusListener::ClientHandler, this, client));
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}
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}
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void LivestatusListener::ClientHandler(const Socket::Ptr& client)
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{
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{
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boost::mutex::scoped_lock lock(l_ComponentMutex);
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l_ClientsConnected++;
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l_Connections++;
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}
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Stream::Ptr stream = make_shared<NetworkStream>(client);
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for (;;) {
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String line;
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ReadLineContext context;
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std::vector<String> lines;
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while (stream->ReadLine(&line, context)) {
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if (line.GetLength() > 0)
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lines.push_back(line);
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else
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break;
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}
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Query::Ptr query = make_shared<Query>(lines, GetCompatLogPath());
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if (!query->Execute(stream))
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break;
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}
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{
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boost::mutex::scoped_lock lock(l_ComponentMutex);
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l_ClientsConnected--;
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}
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}
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void LivestatusListener::ValidateSocketType(const String& location, const Dictionary::Ptr& attrs)
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{
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Value socket_type = attrs->Get("socket_type");
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if (!socket_type.IsEmpty() && socket_type != "unix" && socket_type != "tcp") {
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ConfigCompilerContext::GetInstance()->AddMessage(true, "Validation failed for " +
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location + ": Socket type '" + socket_type + "' is invalid.");
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}
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}
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