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 #ifndef _WIN32
  65         m_ReadTimer = new Timer();
  66         m_ReadTimer->OnTimerExpired.connect(std::bind(&CheckResultReader::ReadTimerHandler, this));
  67         m_ReadTimer->SetInterval(5);
  68         m_ReadTimer->Start();
  69 #endif /* _WIN32 */
  70 }
  71
  72 /**
  73  * @threadsafety Always.
  74  */
  75 void CheckResultReader::Stop(bool runtimeRemoved)
  76 {
  77         Log(LogInformation, "CheckResultReader")
  78                 << "'" << GetName() << "' stopped.";
  79
  80         ObjectImpl<CheckResultReader>::Stop(runtimeRemoved);
  81 }
  82
  83 /**
  84  * @threadsafety Always.
  85  */
  86 void CheckResultReader::ReadTimerHandler() const
  87 {
  88         CONTEXT("Processing check result files in '" + GetSpoolDir() + "'");
  89
  90         Utility::Glob(GetSpoolDir() + "/c??????.ok", std::bind(&CheckResultReader::ProcessCheckResultFile, this, _1), GlobFile);
  91 }
  92
  93 void CheckResultReader::ProcessCheckResultFile(const String& path) const
  94 {
  95         CONTEXT("Processing check result file '" + path + "'");
  96
  97         String crfile = String(path.Begin(), path.End() - 3); /* Remove the ".ok" extension. */
  98
  99         std::ifstream fp;
 100         fp.exceptions(std::ifstream::badbit);
 101         fp.open(crfile.CStr());
 102
 103         std::map<String, String> attrs;
 104
 105         while (fp.good()) {
 106                 std::string line;
 107                 std::getline(fp, line);
 108
 109                 if (line.empty() || line[0] == '#')
 110                         continue; /* Ignore comments and empty lines. */
 111
 112                 size_t pos = line.find_first_of('=');
 113
 114                 if (pos == std::string::npos)
 115                         continue; /* Ignore invalid lines. */
 116
 117                 String key = line.substr(0, pos);
 118                 String value = line.substr(pos + 1);
 119
 120                 attrs[key] = value;
 121         }
 122
 123         /* Remove the checkresult files. */
 124         if (unlink(path.CStr()) < 0)
 125                 BOOST_THROW_EXCEPTION(posix_error()
 126                         << boost::errinfo_api_function("unlink")
 127                         << boost::errinfo_errno(errno)
 128                         << boost::errinfo_file_name(path));
 129
 130         if (unlink(crfile.CStr()) < 0)
 131                 BOOST_THROW_EXCEPTION(posix_error()
 132                         << boost::errinfo_api_function("unlink")
 133                         << boost::errinfo_errno(errno)
 134                         << boost::errinfo_file_name(crfile));
 135
 136         Checkable::Ptr checkable;
 137
 138         Host::Ptr host = Host::GetByName(attrs["host_name"]);
 139
 140         if (!host) {
 141                 Log(LogWarning, "CheckResultReader")
 142                         << "Ignoring checkresult file for host '" << attrs["host_name"] << "': Host does not exist.";
 143
 144                 return;
 145         }
 146
 147         if (attrs.find("service_description") != attrs.end()) {
 148                 Service::Ptr service = host->GetServiceByShortName(attrs["service_description"]);
 149
 150                 if (!service) {
 151                         Log(LogWarning, "CheckResultReader")
 152                                 << "Ignoring checkresult file for host '" << attrs["host_name"]
 153                                 << "', service '" << attrs["service_description"] << "': Service does not exist.";
 154
 155                         return;
 156                 }
 157
 158                 checkable = service;
 159         } else
 160                 checkable = host;
 161
 162         CheckResult::Ptr result = new CheckResult();
 163         String output = CompatUtility::UnEscapeString(attrs["output"]);
 164         std::pair<String, Value> co = PluginUtility::ParseCheckOutput(output);
 165         result->SetOutput(co.first);
 166         result->SetPerformanceData(PluginUtility::SplitPerfdata(co.second));
 167         result->SetState(PluginUtility::ExitStatusToState(Convert::ToLong(attrs["return_code"])));
 168
 169         if (attrs.find("start_time") != attrs.end())
 170                 result->SetExecutionStart(Convert::ToDouble(attrs["start_time"]));
 171         else
 172                 result->SetExecutionStart(Utility::GetTime());
 173
 174         if (attrs.find("finish_time") != attrs.end())
 175                 result->SetExecutionEnd(Convert::ToDouble(attrs["finish_time"]));
 176         else
 177                 result->SetExecutionEnd(result->GetExecutionStart());
 178
 179         checkable->ProcessCheckResult(result);
 180
 181         Log(LogDebug, "CheckResultReader")
 182                 << "Processed checkresult file for object '" << checkable->GetName() << "'";
 183
 184         /* Reschedule the next check. The side effect of this is that for as long
 185          * as we receive check result files for a host/service we won't execute any
 186          * active checks. */
 187         checkable->SetNextCheck(Utility::GetTime() + checkable->GetCheckInterval());
 188 }