granicus.if.org Git - icinga2/blob - lib/compat/checkresultreader.cpp

   1 /******************************************************************************
   2  * Icinga 2                                                                   *
   3  * Copyright (C) 2012-2018 Icinga Development Team (https://www.icinga.com/)  *
   4  *                                                                            *
   5  * This program is free software; you can redistribute it and/or              *
   6  * modify it under the terms of the GNU General Public License                *
   7  * as published by the Free Software Foundation; either version 2             *
   8  * of the License, or (at your option) any later version.                     *
   9  *                                                                            *
  10  * This program is distributed in the hope that it will be useful,            *
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
  13  * GNU General Public License for more details.                               *
  14  *                                                                            *
  15  * You should have received a copy of the GNU General Public License          *
  16  * along with this program; if not, write to the Free Software Foundation     *
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.             *
  18  ******************************************************************************/
  19
  20 #include "icinga/compatutility.hpp"
  21 #include "compat/checkresultreader.hpp"
  22 #include "compat/checkresultreader-ti.cpp"
  23 #include "icinga/service.hpp"
  24 #include "icinga/pluginutility.hpp"
  25 #include "icinga/icingaapplication.hpp"
  26 #include "base/configtype.hpp"
  27 #include "base/objectlock.hpp"
  28 #include "base/logger.hpp"
  29 #include "base/convert.hpp"
  30 #include "base/application.hpp"
  31 #include "base/utility.hpp"
  32 #include "base/exception.hpp"
  33 #include "base/context.hpp"
  34 #include "base/statsfunction.hpp"
  35 #include <fstream>
  36
  37 using namespace icinga;
  38
  39 REGISTER_TYPE(CheckResultReader);
  40
  41 REGISTER_STATSFUNCTION(CheckResultReader, &CheckResultReader::StatsFunc);
  42
  43 void CheckResultReader::StatsFunc(const Dictionary::Ptr& status, const Array::Ptr&)
  44 {
  45         DictionaryData nodes;
  46
  47         for (const CheckResultReader::Ptr& checkresultreader : ConfigType::GetObjectsByType<CheckResultReader>()) {
  48                 nodes.emplace_back(checkresultreader->GetName(), 1); //add more stats
  49         }
  50
  51         status->Set("checkresultreader", new Dictionary(std::move(nodes)));
  52 }
  53
  54 /**
  55  * @threadsafety Always.
  56  */
  57 void CheckResultReader::Start(bool runtimeCreated)
  58 {
  59         ObjectImpl<CheckResultReader>::Start(runtimeCreated);
  60
  61         Log(LogInformation, "CheckResultReader")
  62                 << "'" << GetName() << "' started.";
  63
  64         Log(LogWarning, "CheckResultReader")
  65                 << "The CheckResultReader feature is DEPRECATED and will be removed in Icinga v2.11.";
  66
  67 #ifndef _WIN32
  68         m_ReadTimer = new Timer();
  69         m_ReadTimer->OnTimerExpired.connect(std::bind(&CheckResultReader::ReadTimerHandler, this));
  70         m_ReadTimer->SetInterval(5);
  71         m_ReadTimer->Start();
  72 #endif /* _WIN32 */
  73 }
  74
  75 /**
  76  * @threadsafety Always.
  77  */
  78 void CheckResultReader::Stop(bool runtimeRemoved)
  79 {
  80         Log(LogInformation, "CheckResultReader")
  81                 << "'" << GetName() << "' stopped.";
  82
  83         ObjectImpl<CheckResultReader>::Stop(runtimeRemoved);
  84 }
  85
  86 /**
  87  * @threadsafety Always.
  88  */
  89 void CheckResultReader::ReadTimerHandler() const
  90 {
  91         CONTEXT("Processing check result files in '" + GetSpoolDir() + "'");
  92
  93         Utility::Glob(GetSpoolDir() + "/c??????.ok", std::bind(&CheckResultReader::ProcessCheckResultFile, this, _1), GlobFile);
  94 }
  95
  96 void CheckResultReader::ProcessCheckResultFile(const String& path) const
  97 {
  98         CONTEXT("Processing check result file '" + path + "'");
  99
 100         String crfile = String(path.Begin(), path.End() - 3); /* Remove the ".ok" extension. */
 101
 102         std::ifstream fp;
 103         fp.exceptions(std::ifstream::badbit);
 104         fp.open(crfile.CStr());
 105
 106         std::map<String, String> attrs;
 107
 108         while (fp.good()) {
 109                 std::string line;
 110                 std::getline(fp, line);
 111
 112                 if (line.empty() || line[0] == '#')
 113                         continue; /* Ignore comments and empty lines. */
 114
 115                 size_t pos = line.find_first_of('=');
 116
 117                 if (pos == std::string::npos)
 118                         continue; /* Ignore invalid lines. */
 119
 120                 String key = line.substr(0, pos);
 121                 String value = line.substr(pos + 1);
 122
 123                 attrs[key] = value;
 124         }
 125
 126         /* Remove the checkresult files. */
 127         if (unlink(path.CStr()) < 0)
 128                 BOOST_THROW_EXCEPTION(posix_error()
 129                         << boost::errinfo_api_function("unlink")
 130                         << boost::errinfo_errno(errno)
 131                         << boost::errinfo_file_name(path));
 132
 133         if (unlink(crfile.CStr()) < 0)
 134                 BOOST_THROW_EXCEPTION(posix_error()
 135                         << boost::errinfo_api_function("unlink")
 136                         << boost::errinfo_errno(errno)
 137                         << boost::errinfo_file_name(crfile));
 138
 139         Checkable::Ptr checkable;
 140
 141         Host::Ptr host = Host::GetByName(attrs["host_name"]);
 142
 143         if (!host) {
 144                 Log(LogWarning, "CheckResultReader")
 145                         << "Ignoring checkresult file for host '" << attrs["host_name"] << "': Host does not exist.";
 146
 147                 return;
 148         }
 149
 150         if (attrs.find("service_description") != attrs.end()) {
 151                 Service::Ptr service = host->GetServiceByShortName(attrs["service_description"]);
 152
 153                 if (!service) {
 154                         Log(LogWarning, "CheckResultReader")
 155                                 << "Ignoring checkresult file for host '" << attrs["host_name"]
 156                                 << "', service '" << attrs["service_description"] << "': Service does not exist.";
 157
 158                         return;
 159                 }
 160
 161                 checkable = service;
 162         } else
 163                 checkable = host;
 164
 165         CheckResult::Ptr result = new CheckResult();
 166         String output = CompatUtility::UnEscapeString(attrs["output"]);
 167         std::pair<String, Value> co = PluginUtility::ParseCheckOutput(output);
 168         result->SetOutput(co.first);
 169         result->SetPerformanceData(PluginUtility::SplitPerfdata(co.second));
 170         result->SetState(PluginUtility::ExitStatusToState(Convert::ToLong(attrs["return_code"])));
 171
 172         if (attrs.find("start_time") != attrs.end())
 173                 result->SetExecutionStart(Convert::ToDouble(attrs["start_time"]));
 174         else
 175                 result->SetExecutionStart(Utility::GetTime());
 176
 177         if (attrs.find("finish_time") != attrs.end())
 178                 result->SetExecutionEnd(Convert::ToDouble(attrs["finish_time"]));
 179         else
 180                 result->SetExecutionEnd(result->GetExecutionStart());
 181
 182         checkable->ProcessCheckResult(result);
 183
 184         Log(LogDebug, "CheckResultReader")
 185                 << "Processed checkresult file for object '" << checkable->GetName() << "'";
 186
 187         /* Reschedule the next check. The side effect of this is that for as long
 188          * as we receive check result files for a host/service we won't execute any
 189          * active checks. */
 190         checkable->SetNextCheck(Utility::GetTime() + checkable->GetCheckInterval());
 191 }