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-rw-r--r--lib/cli/nodeutility.cpp390
1 files changed, 390 insertions, 0 deletions
diff --git a/lib/cli/nodeutility.cpp b/lib/cli/nodeutility.cpp
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+/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
+
+#include "cli/nodeutility.hpp"
+#include "cli/clicommand.hpp"
+#include "cli/variableutility.hpp"
+#include "base/logger.hpp"
+#include "base/application.hpp"
+#include "base/tlsutility.hpp"
+#include "base/convert.hpp"
+#include "base/utility.hpp"
+#include "base/scriptglobal.hpp"
+#include "base/json.hpp"
+#include "base/netstring.hpp"
+#include "base/stdiostream.hpp"
+#include "base/debug.hpp"
+#include "base/objectlock.hpp"
+#include "base/console.hpp"
+#include "base/exception.hpp"
+#include "base/configwriter.hpp"
+#include <boost/algorithm/string/join.hpp>
+#include <boost/algorithm/string/replace.hpp>
+#include <fstream>
+#include <iostream>
+
+using namespace icinga;
+
+String NodeUtility::GetConstantsConfPath()
+{
+ return Configuration::ConfigDir + "/constants.conf";
+}
+
+String NodeUtility::GetZonesConfPath()
+{
+ return Configuration::ConfigDir + "/zones.conf";
+}
+
+/*
+ * Node Setup helpers
+ */
+
+int NodeUtility::GenerateNodeIcingaConfig(const String& endpointName, const String& zoneName,
+ const String& parentZoneName, const std::vector<std::string>& endpoints,
+ const std::vector<String>& globalZones)
+{
+ Array::Ptr config = new Array();
+
+ Array::Ptr myParentZoneMembers = new Array();
+
+ for (const String& endpoint : endpoints) {
+ /* extract all --endpoint arguments and store host,port info */
+ std::vector<String> tokens = endpoint.Split(",");
+
+ Dictionary::Ptr myParentEndpoint = new Dictionary();
+
+ if (tokens.size() > 1) {
+ String host = tokens[1].Trim();
+
+ if (!host.IsEmpty())
+ myParentEndpoint->Set("host", host);
+ }
+
+ if (tokens.size() > 2) {
+ String port = tokens[2].Trim();
+
+ if (!port.IsEmpty())
+ myParentEndpoint->Set("port", port);
+ }
+
+ String myEndpointName = tokens[0].Trim();
+ myParentEndpoint->Set("__name", myEndpointName);
+ myParentEndpoint->Set("__type", "Endpoint");
+
+ /* save endpoint in master zone */
+ myParentZoneMembers->Add(myEndpointName);
+
+ config->Add(myParentEndpoint);
+ }
+
+ /* add the parent zone to the config */
+ config->Add(new Dictionary({
+ { "__name", parentZoneName },
+ { "__type", "Zone" },
+ { "endpoints", myParentZoneMembers }
+ }));
+
+ /* store the local generated node configuration */
+ config->Add(new Dictionary({
+ { "__name", endpointName },
+ { "__type", "Endpoint" }
+ }));
+
+ config->Add(new Dictionary({
+ { "__name", zoneName },
+ { "__type", "Zone" },
+ { "parent", parentZoneName },
+ { "endpoints", new Array({ endpointName }) }
+ }));
+
+ for (const String& globalzone : globalZones) {
+ config->Add(new Dictionary({
+ { "__name", globalzone },
+ { "__type", "Zone" },
+ { "global", true }
+ }));
+ }
+
+ /* Write the newly generated configuration. */
+ NodeUtility::WriteNodeConfigObjects(GetZonesConfPath(), config);
+
+ return 0;
+}
+
+int NodeUtility::GenerateNodeMasterIcingaConfig(const String& endpointName, const String& zoneName,
+ const std::vector<String>& globalZones)
+{
+ Array::Ptr config = new Array();
+
+ /* store the local generated node master configuration */
+ config->Add(new Dictionary({
+ { "__name", endpointName },
+ { "__type", "Endpoint" }
+ }));
+
+ config->Add(new Dictionary({
+ { "__name", zoneName },
+ { "__type", "Zone" },
+ { "endpoints", new Array({ endpointName }) }
+ }));
+
+ for (const String& globalzone : globalZones) {
+ config->Add(new Dictionary({
+ { "__name", globalzone },
+ { "__type", "Zone" },
+ { "global", true }
+ }));
+ }
+
+ /* Write the newly generated configuration. */
+ NodeUtility::WriteNodeConfigObjects(GetZonesConfPath(), config);
+
+ return 0;
+}
+
+bool NodeUtility::WriteNodeConfigObjects(const String& filename, const Array::Ptr& objects)
+{
+ Log(LogInformation, "cli")
+ << "Dumping config items to file '" << filename << "'.";
+
+ /* create a backup first */
+ CreateBackupFile(filename);
+
+ String path = Utility::DirName(filename);
+
+ Utility::MkDirP(path, 0755);
+
+ String user = Configuration::RunAsUser;
+ String group = Configuration::RunAsGroup;
+
+ if (!Utility::SetFileOwnership(path, user, group)) {
+ Log(LogWarning, "cli")
+ << "Cannot set ownership for user '" << user << "' group '" << group << "' on path '" << path << "'. Verify it yourself!";
+ }
+ if (!Utility::SetFileOwnership(filename, user, group)) {
+ Log(LogWarning, "cli")
+ << "Cannot set ownership for user '" << user << "' group '" << group << "' on path '" << path << "'. Verify it yourself!";
+ }
+
+ std::fstream fp;
+ String tempFilename = Utility::CreateTempFile(filename + ".XXXXXX", 0644, fp);
+
+ fp << "/*\n";
+ fp << " * Generated by Icinga 2 node setup commands\n";
+ fp << " * on " << Utility::FormatDateTime("%Y-%m-%d %H:%M:%S %z", Utility::GetTime()) << "\n";
+ fp << " */\n\n";
+
+ ObjectLock olock(objects);
+ for (const Dictionary::Ptr& object : objects) {
+ SerializeObject(fp, object);
+ }
+
+ fp << std::endl;
+ fp.close();
+
+ Utility::RenameFile(tempFilename, filename);
+
+ return true;
+}
+
+
+/*
+ * We generally don't overwrite files without backup before
+ */
+bool NodeUtility::CreateBackupFile(const String& target, bool isPrivate)
+{
+ if (!Utility::PathExists(target))
+ return false;
+
+ String backup = target + ".orig";
+
+ if (Utility::PathExists(backup)) {
+ Log(LogInformation, "cli")
+ << "Backup file '" << backup << "' already exists. Skipping backup.";
+ return false;
+ }
+
+ Utility::CopyFile(target, backup);
+
+#ifndef _WIN32
+ if (isPrivate)
+ chmod(backup.CStr(), 0600);
+#endif /* _WIN32 */
+
+ Log(LogInformation, "cli")
+ << "Created backup file '" << backup << "'.";
+
+ return true;
+}
+
+void NodeUtility::SerializeObject(std::ostream& fp, const Dictionary::Ptr& object)
+{
+ fp << "object ";
+ ConfigWriter::EmitIdentifier(fp, object->Get("__type"), false);
+ fp << " ";
+ ConfigWriter::EmitValue(fp, 0, object->Get("__name"));
+ fp << " {\n";
+
+ ObjectLock olock(object);
+ for (const Dictionary::Pair& kv : object) {
+ if (kv.first == "__type" || kv.first == "__name")
+ continue;
+
+ fp << "\t";
+ ConfigWriter::EmitIdentifier(fp, kv.first, true);
+ fp << " = ";
+ ConfigWriter::EmitValue(fp, 1, kv.second);
+ fp << "\n";
+ }
+
+ fp << "}\n\n";
+}
+
+/*
+* Returns true if the include is found, otherwise false
+*/
+bool NodeUtility::GetConfigurationIncludeState(const String& value, bool recursive) {
+ String configurationFile = Configuration::ConfigDir + "/icinga2.conf";
+
+ Log(LogInformation, "cli")
+ << "Reading '" << configurationFile << "'.";
+
+ std::ifstream ifp(configurationFile.CStr());
+
+ String affectedInclude = value;
+
+ if (recursive)
+ affectedInclude = "include_recursive " + affectedInclude;
+ else
+ affectedInclude = "include " + affectedInclude;
+
+ bool isIncluded = false;
+
+ std::string line;
+
+ while(std::getline(ifp, line)) {
+ /*
+ * Trying to find if the inclusion is enabled.
+ * First hit breaks out of the loop.
+ */
+
+ if (line.compare(0, affectedInclude.GetLength(), affectedInclude) == 0) {
+ isIncluded = true;
+
+ /*
+ * We can safely break out here, since an enabled include always win.
+ */
+ break;
+ }
+ }
+
+ ifp.close();
+
+ return isIncluded;
+}
+
+/*
+ * include = false, will comment out the include statement
+ * include = true, will add an include statement or uncomment a statement if one is existing
+ * resursive = false, will search for a non-resursive include statement
+ * recursive = true, will search for a resursive include statement
+ * Returns true on success, false if option was not found
+ */
+bool NodeUtility::UpdateConfiguration(const String& value, bool include, bool recursive)
+{
+ String configurationFile = Configuration::ConfigDir + "/icinga2.conf";
+
+ Log(LogInformation, "cli")
+ << "Updating '" << value << "' include in '" << configurationFile << "'.";
+
+ NodeUtility::CreateBackupFile(configurationFile);
+
+ std::ifstream ifp(configurationFile.CStr());
+ std::fstream ofp;
+ String tempFile = Utility::CreateTempFile(configurationFile + ".XXXXXX", 0644, ofp);
+
+ String affectedInclude = value;
+
+ if (recursive)
+ affectedInclude = "include_recursive " + affectedInclude;
+ else
+ affectedInclude = "include " + affectedInclude;
+
+ bool found = false;
+
+ std::string line;
+
+ while (std::getline(ifp, line)) {
+ if (include) {
+ if (line.find("//" + affectedInclude) != std::string::npos || line.find("// " + affectedInclude) != std::string::npos) {
+ found = true;
+ ofp << "// Added by the node setup CLI command on "
+ << Utility::FormatDateTime("%Y-%m-%d %H:%M:%S %z", Utility::GetTime())
+ << "\n" + affectedInclude + "\n";
+ } else if (line.find(affectedInclude) != std::string::npos) {
+ found = true;
+
+ Log(LogInformation, "cli")
+ << "Include statement '" + affectedInclude + "' already set.";
+
+ ofp << line << "\n";
+ } else {
+ ofp << line << "\n";
+ }
+ } else {
+ if (line.find(affectedInclude) != std::string::npos) {
+ found = true;
+ ofp << "// Disabled by the node setup CLI command on "
+ << Utility::FormatDateTime("%Y-%m-%d %H:%M:%S %z", Utility::GetTime())
+ << "\n// " + affectedInclude + "\n";
+ } else {
+ ofp << line << "\n";
+ }
+ }
+ }
+
+ if (include && !found) {
+ ofp << "// Added by the node setup CLI command on "
+ << Utility::FormatDateTime("%Y-%m-%d %H:%M:%S %z", Utility::GetTime())
+ << "\n" + affectedInclude + "\n";
+ }
+
+ ifp.close();
+ ofp.close();
+
+ Utility::RenameFile(tempFile, configurationFile);
+
+ return (found || include);
+}
+
+void NodeUtility::UpdateConstant(const String& name, const String& value)
+{
+ String constantsConfPath = NodeUtility::GetConstantsConfPath();
+
+ Log(LogInformation, "cli")
+ << "Updating '" << name << "' constant in '" << constantsConfPath << "'.";
+
+ NodeUtility::CreateBackupFile(constantsConfPath);
+
+ std::ifstream ifp(constantsConfPath.CStr());
+ std::fstream ofp;
+ String tempFile = Utility::CreateTempFile(constantsConfPath + ".XXXXXX", 0644, ofp);
+
+ bool found = false;
+
+ std::string line;
+ while (std::getline(ifp, line)) {
+ if (line.find("const " + name + " = ") != std::string::npos) {
+ ofp << "const " + name + " = \"" + value + "\"\n";
+ found = true;
+ } else
+ ofp << line << "\n";
+ }
+
+ if (!found)
+ ofp << "const " + name + " = \"" + value + "\"\n";
+
+ ifp.close();
+ ofp.close();
+
+ Utility::RenameFile(tempFile, constantsConfPath);
+}