mirror of https://github.com/Icinga/icinga2.git
630 lines
18 KiB
C++
630 lines
18 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2014 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 "cli/clicommand.hpp"
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#include "config/configcompilercontext.hpp"
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#include "config/configcompiler.hpp"
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#include "config/configitembuilder.hpp"
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#include "base/application.hpp"
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#include "base/logger.hpp"
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#include "base/timer.hpp"
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#include "base/utility.hpp"
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#include "base/exception.hpp"
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#include "base/convert.hpp"
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#include "base/scriptvariable.hpp"
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#include "base/context.hpp"
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#include "base/console.hpp"
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#include "config.h"
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#include <boost/program_options.hpp>
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#include <boost/tuple/tuple.hpp>
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#include <boost/foreach.hpp>
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#ifndef _WIN32
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# include <sys/types.h>
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# include <pwd.h>
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# include <grp.h>
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#endif /* _WIN32 */
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using namespace icinga;
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namespace po = boost::program_options;
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#ifdef _WIN32
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SERVICE_STATUS l_SvcStatus;
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SERVICE_STATUS_HANDLE l_SvcStatusHandle;
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#endif /* _WIN32 */
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static std::vector<String> GetLogLevelCompletionSuggestions(const String& arg)
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{
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std::vector<String> result;
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String debugLevel = "debug";
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if (debugLevel.Find(arg) == 0)
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result.push_back(debugLevel);
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String noticeLevel = "notice";
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if (noticeLevel.Find(arg) == 0)
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result.push_back(noticeLevel);
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String informationLevel = "information";
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if (informationLevel.Find(arg) == 0)
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result.push_back(informationLevel);
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String warningLevel = "warning";
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if (warningLevel.Find(arg) == 0)
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result.push_back(warningLevel);
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String criticalLevel = "critical";
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if (criticalLevel.Find(arg) == 0)
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result.push_back(criticalLevel);
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return result;
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}
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static std::vector<String> GlobalArgumentCompletion(const String& argument, const String& word)
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{
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if (argument == "include")
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return GetBashCompletionSuggestions("directory", word);
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else if (argument == "log-level")
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return GetLogLevelCompletionSuggestions(word);
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else
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return std::vector<String>();
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}
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int Main(void)
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{
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int argc = Application::GetArgC();
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char **argv = Application::GetArgV();
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bool autocomplete = false;
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int autoindex = 0;
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if (argc >= 4 && strcmp(argv[1], "--autocomplete") == 0) {
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autocomplete = true;
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autoindex = Convert::ToLong(argv[2]);
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argc -= 3;
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argv += 3;
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}
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Application::SetStartTime(Utility::GetTime());
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if (!autocomplete)
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Application::SetResourceLimits();
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/* Set thread title. */
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Utility::SetThreadName("Main Thread", false);
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/* Install exception handlers to make debugging easier. */
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Application::InstallExceptionHandlers();
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#ifdef _WIN32
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bool builtinPaths = true;
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HKEY hKey;
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if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Icinga Development Team\\ICINGA2", 0,
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KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS) {
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BYTE pvData[MAX_PATH];
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DWORD cbData = sizeof(pvData)-1;
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DWORD lType;
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if (RegQueryValueEx(hKey, NULL, NULL, &lType, pvData, &cbData) == ERROR_SUCCESS && lType == REG_SZ) {
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pvData[cbData] = '\0';
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String prefix = (char *)pvData;
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Application::DeclarePrefixDir(prefix);
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Application::DeclareSysconfDir(prefix + "\\etc");
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Application::DeclareRunDir(prefix + "\\var\\run");
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Application::DeclareLocalStateDir(prefix + "\\var");
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Application::DeclarePkgDataDir(prefix + "\\share\\icinga2");
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Application::DeclareIncludeConfDir(prefix + "\\share\\icinga2\\include");
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builtinPaths = false;
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}
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RegCloseKey(hKey);
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}
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if (builtinPaths) {
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Log(LogWarning, "icinga-app", "Registry key could not be read. Falling back to built-in paths.");
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#endif /* _WIN32 */
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Application::DeclarePrefixDir(ICINGA_PREFIX);
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Application::DeclareSysconfDir(ICINGA_SYSCONFDIR);
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Application::DeclareRunDir(ICINGA_RUNDIR);
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Application::DeclareLocalStateDir(ICINGA_LOCALSTATEDIR);
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Application::DeclarePkgDataDir(ICINGA_PKGDATADIR);
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Application::DeclareIncludeConfDir(ICINGA_INCLUDECONFDIR);
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#ifdef _WIN32
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}
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#endif /* _WIN32 */
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Application::DeclareZonesDir(Application::GetSysconfDir() + "/icinga2/zones.d");
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Application::DeclareApplicationType("icinga/IcingaApplication");
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Application::DeclareRunAsUser(ICINGA_USER);
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Application::DeclareRunAsGroup(ICINGA_GROUP);
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LogSeverity logLevel = Logger::GetConsoleLogSeverity();
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Logger::SetConsoleLogSeverity(LogWarning);
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Utility::LoadExtensionLibrary("cli");
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po::options_description visibleDesc("Global options");
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visibleDesc.add_options()
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("help,h", "show this help message")
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("version,V", "show version information")
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#ifndef _WIN32
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("color", "use VT100 color codes even when stdout is not a terminal")
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#endif /* _WIN32 */
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("define,D", po::value<std::vector<std::string> >(), "define a constant")
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("library,l", po::value<std::vector<std::string> >(), "load a library")
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("include,I", po::value<std::vector<std::string> >(), "add include search directory")
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("log-level,x", po::value<std::string>(), "specify the log level for the console log");
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po::options_description hiddenDesc("Hidden options");
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hiddenDesc.add_options()
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#ifndef _WIN32
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("no-stack-rlimit", "used internally, do not specify manually")
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#else /* _WIN32 */
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("no-stack-rlimit", "used internally, do not specify manually")
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#endif /* _WIN32 */
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("arg", po::value<std::vector<std::string> >(), "positional argument");
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po::positional_options_description positionalDesc;
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positionalDesc.add("arg", -1);
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String cmdname;
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CLICommand::Ptr command;
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po::variables_map vm;
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try {
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CLICommand::ParseCommand(argc, argv, visibleDesc, hiddenDesc, positionalDesc,
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vm, cmdname, command, autocomplete);
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} catch (const std::exception& ex) {
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Log(LogCritical, "icinga-app")
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<< "Error while parsing command-line options: " << ex.what();
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return EXIT_FAILURE;
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}
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String initconfig = Application::GetSysconfDir() + "/icinga2/init.conf";
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if (Utility::PathExists(initconfig)) {
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ConfigCompilerContext::GetInstance()->Reset();
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ConfigCompiler::CompileFile(initconfig);
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}
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#ifndef _WIN32
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if (vm.count("color")) {
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Console::SetType(std::cout, Console_VT100);
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Console::SetType(std::cerr, Console_VT100);
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}
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#endif /* _WIN32 */
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if (vm.count("define")) {
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BOOST_FOREACH(const String& define, vm["define"].as<std::vector<std::string> >()) {
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String key, value;
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size_t pos = define.FindFirstOf('=');
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if (pos != String::NPos) {
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key = define.SubStr(0, pos);
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value = define.SubStr(pos + 1);
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} else {
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key = define;
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value = "1";
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}
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ScriptVariable::Set(key, value);
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}
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}
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Application::DeclareStatePath(Application::GetLocalStateDir() + "/lib/icinga2/icinga2.state");
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Application::DeclareObjectsPath(Application::GetLocalStateDir() + "/cache/icinga2/icinga2.debug");
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Application::DeclareVarsPath(Application::GetLocalStateDir() + "/cache/icinga2/icinga2.vars");
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Application::DeclarePidPath(Application::GetRunDir() + "/icinga2/icinga2.pid");
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ConfigCompiler::AddIncludeSearchDir(Application::GetIncludeConfDir());
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if (!autocomplete && vm.count("include")) {
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BOOST_FOREACH(const String& includePath, vm["include"].as<std::vector<std::string> >()) {
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ConfigCompiler::AddIncludeSearchDir(includePath);
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}
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}
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Logger::SetConsoleLogSeverity(logLevel);
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if (!autocomplete) {
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if (vm.count("log-level")) {
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String severity = vm["log-level"].as<std::string>();
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LogSeverity logLevel = LogInformation;
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try {
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logLevel = Logger::StringToSeverity(severity);
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} catch (std::exception&) {
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/* use the default */
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Log(LogWarning, "icinga", "Invalid log level set. Using default 'information'.");
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}
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Logger::SetConsoleLogSeverity(logLevel);
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}
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if (vm.count("library")) {
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BOOST_FOREACH(const String& libraryName, vm["library"].as<std::vector<std::string> >()) {
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(void)Utility::LoadExtensionLibrary(libraryName);
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}
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}
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if (!command || vm.count("help") || vm.count("version")) {
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String appName = Utility::BaseName(Application::GetArgV()[0]);
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if (appName.GetLength() > 3 && appName.SubStr(0, 3) == "lt-")
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appName = appName.SubStr(3, appName.GetLength() - 3);
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std::cout << appName << " " << "- The Icinga 2 network monitoring daemon.";
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if (!command || vm.count("help")) {
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std::cout << std::endl << std::endl
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<< "Usage:" << std::endl
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<< " " << argv[0] << " ";
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if (cmdname.IsEmpty())
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std::cout << "<command>";
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else
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std::cout << cmdname;
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std::cout << " [<arguments>]";
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if (command) {
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std::cout << std::endl << std::endl
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<< command->GetDescription();
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}
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std::cout << "\n";
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}
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if (vm.count("version")) {
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std::cout << " (Version: " << Application::GetVersion() << ")";
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std::cout << std::endl
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<< "Copyright (c) 2012-2014 Icinga Development Team (http://www.icinga.org)" << std::endl
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<< "License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl2.html>" << std::endl
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<< "This is free software: you are free to change and redistribute it." << std::endl
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<< "There is NO WARRANTY, to the extent permitted by law.";
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}
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std::cout << std::endl;
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if (vm.count("version")) {
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std::cout << std::endl;
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Application::DisplayInfoMessage(true);
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return EXIT_SUCCESS;
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}
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}
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if (!command || vm.count("help")) {
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if (!command)
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CLICommand::ShowCommands(argc, argv, NULL);
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std::cout << visibleDesc << std::endl
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<< "Report bugs at <https://dev.icinga.org/>" << std::endl
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<< "Icinga home page: <http://www.icinga.org/>" << std::endl;
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return EXIT_SUCCESS;
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}
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}
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int rc = 1;
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if (autocomplete) {
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CLICommand::ShowCommands(argc, argv, &visibleDesc, &hiddenDesc,
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&GlobalArgumentCompletion, true, autoindex);
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rc = 0;
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} else if (command) {
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#ifndef _WIN32
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if (command->GetImpersonationLevel() == ImpersonateRoot) {
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if (getuid() != 0) {
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Log(LogCritical, "cli", "This command must be run as root.");
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return 0;
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}
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} else if (command && command->GetImpersonationLevel() == ImpersonateIcinga) {
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String group = Application::GetRunAsGroup();
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errno = 0;
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struct group *gr = getgrnam(group.CStr());
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if (!gr) {
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if (errno == 0) {
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Log(LogCritical, "cli")
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<< "Invalid group specified: " << group;
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return EXIT_FAILURE;
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} else {
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Log(LogCritical, "cli")
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<< "getgrnam() failed with error code " << errno << ", \"" << Utility::FormatErrorNumber(errno) << "\"";
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return EXIT_FAILURE;
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}
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}
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if (getgid() != gr->gr_gid) {
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if (!vm.count("reload-internal") && setgroups(0, NULL) < 0) {
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Log(LogCritical, "cli")
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<< "setgroups() failed with error code " << errno << ", \"" << Utility::FormatErrorNumber(errno) << "\"";
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return EXIT_FAILURE;
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}
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if (setgid(gr->gr_gid) < 0) {
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Log(LogCritical, "cli")
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<< "setgid() failed with error code " << errno << ", \"" << Utility::FormatErrorNumber(errno) << "\"";
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return EXIT_FAILURE;
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}
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}
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String user = Application::GetRunAsUser();
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errno = 0;
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struct passwd *pw = getpwnam(user.CStr());
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if (!pw) {
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if (errno == 0) {
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Log(LogCritical, "cli")
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<< "Invalid user specified: " << user;
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return EXIT_FAILURE;
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} else {
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Log(LogCritical, "cli")
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<< "getpwnam() failed with error code " << errno << ", \"" << Utility::FormatErrorNumber(errno) << "\"";
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return EXIT_FAILURE;
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}
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}
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// also activate the additional groups the configured user is member of
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if (getuid() != pw->pw_uid) {
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if (!vm.count("reload-internal") && initgroups(user.CStr(), pw->pw_gid) < 0) {
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Log(LogCritical, "cli")
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<< "initgroups() failed with error code " << errno << ", \"" << Utility::FormatErrorNumber(errno) << "\"";
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return EXIT_FAILURE;
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}
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if (setuid(pw->pw_uid) < 0) {
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Log(LogCritical, "cli")
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<< "setuid() failed with error code " << errno << ", \"" << Utility::FormatErrorNumber(errno) << "\"";
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return EXIT_FAILURE;
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}
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}
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}
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#endif /* _WIN32 */
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std::vector<std::string> args;
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if (vm.count("arg"))
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args = vm["arg"].as<std::vector<std::string> >();
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if (args.size() < command->GetMinArguments()) {
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Log(LogCritical, "cli")
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<< "Too few arguments. Command needs at least " << command->GetMinArguments()
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<< " argument" << (command->GetMinArguments() != 1 ? "s" : "") << ".";
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return EXIT_FAILURE;
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}
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if (command->GetMaxArguments() >= 0 && args.size() > command->GetMaxArguments()) {
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Log(LogCritical, "cli")
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<< "Too many arguments. At most " << command->GetMaxArguments()
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<< " argument" << (command->GetMaxArguments() != 1 ? "s" : "") << " may be specified.";
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return EXIT_FAILURE;
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}
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rc = command->Run(vm, args);
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}
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#ifndef _DEBUG
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Application::Exit(rc);
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#endif /* _DEBUG */
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return rc;
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}
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#ifdef _WIN32
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static int SetupService(bool install, int argc, char **argv)
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{
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SC_HANDLE schSCManager = OpenSCManager(
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NULL,
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NULL,
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SC_MANAGER_ALL_ACCESS);
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if (NULL == schSCManager) {
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printf("OpenSCManager failed (%d)\n", GetLastError());
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return 1;
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}
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TCHAR szPath[MAX_PATH];
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if (!GetModuleFileName(NULL, szPath, MAX_PATH)) {
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printf("Cannot install service (%d)\n", GetLastError());
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return 1;
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}
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String szArgs;
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szArgs = Utility::EscapeShellArg(szPath) + " --scm";
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for (int i = 0; i < argc; i++)
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szArgs += " " + Utility::EscapeShellArg(argv[i]);
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SC_HANDLE schService = OpenService(schSCManager, "icinga2", DELETE | SERVICE_STOP | SERVICE_QUERY_STATUS);
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if (schService != NULL) {
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SERVICE_STATUS status;
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ControlService(schService, SERVICE_CONTROL_STOP, &status);
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double start = Utility::GetTime();
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while (status.dwCurrentState != SERVICE_STOPPED) {
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double end = Utility::GetTime();
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if (end - start > 30) {
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printf("Could not stop the service.\n");
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break;
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}
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Utility::Sleep(5);
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if (!QueryServiceStatus(schService, &status)) {
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printf("QueryServiceStatus failed (%d)\n", GetLastError());
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return 1;
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}
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}
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if (!DeleteService(schService)) {
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printf("DeleteService failed (%d)\n", GetLastError());
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CloseServiceHandle(schService);
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CloseServiceHandle(schSCManager);
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return 1;
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}
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if (!install)
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printf("Service uninstalled successfully\n");
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CloseServiceHandle(schService);
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}
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if (install) {
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schService = CreateService(
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schSCManager,
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"icinga2",
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"Icinga 2",
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SERVICE_ALL_ACCESS,
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SERVICE_WIN32_OWN_PROCESS,
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SERVICE_DEMAND_START,
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SERVICE_ERROR_NORMAL,
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szArgs.CStr(),
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NULL,
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NULL,
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NULL,
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"NT AUTHORITY\\NetworkService",
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NULL);
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if (schService == NULL) {
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printf("CreateService failed (%d)\n", GetLastError());
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CloseServiceHandle(schSCManager);
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return 1;
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} else
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printf("Service installed successfully\n");
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ChangeServiceConfig(schService, SERVICE_NO_CHANGE, SERVICE_AUTO_START,
|
|
SERVICE_ERROR_NORMAL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
SERVICE_DESCRIPTION sdDescription = { "The Icinga 2 monitoring application" };
|
|
ChangeServiceConfig2(schService, SERVICE_CONFIG_DESCRIPTION, &sdDescription);
|
|
|
|
if (!StartService(schService, 0, NULL)) {
|
|
printf("StartService failed (%d)\n", GetLastError());
|
|
CloseServiceHandle(schService);
|
|
CloseServiceHandle(schSCManager);
|
|
return 1;
|
|
}
|
|
|
|
CloseServiceHandle(schService);
|
|
}
|
|
|
|
CloseServiceHandle(schSCManager);
|
|
|
|
return 0;
|
|
}
|
|
|
|
VOID ReportSvcStatus(DWORD dwCurrentState,
|
|
DWORD dwWin32ExitCode,
|
|
DWORD dwWaitHint)
|
|
{
|
|
static DWORD dwCheckPoint = 1;
|
|
|
|
l_SvcStatus.dwCurrentState = dwCurrentState;
|
|
l_SvcStatus.dwWin32ExitCode = dwWin32ExitCode;
|
|
l_SvcStatus.dwWaitHint = dwWaitHint;
|
|
|
|
if (dwCurrentState == SERVICE_START_PENDING)
|
|
l_SvcStatus.dwControlsAccepted = 0;
|
|
else
|
|
l_SvcStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP;
|
|
|
|
if ((dwCurrentState == SERVICE_RUNNING) ||
|
|
(dwCurrentState == SERVICE_STOPPED))
|
|
l_SvcStatus.dwCheckPoint = 0;
|
|
else
|
|
l_SvcStatus.dwCheckPoint = dwCheckPoint++;
|
|
|
|
SetServiceStatus(l_SvcStatusHandle, &l_SvcStatus);
|
|
}
|
|
|
|
VOID WINAPI ServiceControlHandler(DWORD dwCtrl)
|
|
{
|
|
if (dwCtrl == SERVICE_CONTROL_STOP) {
|
|
ReportSvcStatus(SERVICE_STOP_PENDING, NO_ERROR, 0);
|
|
Application::RequestShutdown();
|
|
}
|
|
}
|
|
|
|
VOID WINAPI ServiceMain(DWORD argc, LPSTR *argv)
|
|
{
|
|
l_SvcStatusHandle = RegisterServiceCtrlHandler(
|
|
"icinga2",
|
|
ServiceControlHandler);
|
|
|
|
l_SvcStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
|
|
l_SvcStatus.dwServiceSpecificExitCode = 0;
|
|
|
|
ReportSvcStatus(SERVICE_RUNNING, NO_ERROR, 0);
|
|
|
|
int rc = Main();
|
|
|
|
ReportSvcStatus(SERVICE_STOPPED, NO_ERROR, rc);
|
|
}
|
|
#endif /* _WIN32 */
|
|
|
|
/**
|
|
* Entry point for the Icinga application.
|
|
*
|
|
* @params argc Number of command line arguments.
|
|
* @params argv Command line arguments.
|
|
* @returns The application's exit status.
|
|
*/
|
|
int main(int argc, char **argv)
|
|
{
|
|
/* must be called before using any other libbase functions */
|
|
Application::InitializeBase();
|
|
|
|
/* Set command-line arguments. */
|
|
Application::SetArgC(argc);
|
|
Application::SetArgV(argv);
|
|
|
|
#ifdef _WIN32
|
|
if (argc > 1 && strcmp(argv[1], "--scm-install") == 0) {
|
|
return SetupService(true, argc - 2, &argv[2]);
|
|
}
|
|
|
|
if (argc > 1 && strcmp(argv[1], "--scm-uninstall") == 0) {
|
|
return SetupService(false, argc - 2, &argv[2]);
|
|
}
|
|
|
|
if (argc > 1 && strcmp(argv[1], "--scm") == 0) {
|
|
SERVICE_TABLE_ENTRY dispatchTable[] = {
|
|
{ "icinga2", ServiceMain },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
StartServiceCtrlDispatcher(dispatchTable);
|
|
Application::Exit(1);
|
|
}
|
|
#endif /* _WIN32 */
|
|
|
|
int rc = Main();
|
|
|
|
Application::Exit(rc);
|
|
}
|