1 files changed, 378 insertions, 0 deletions
diff --git a/lib/cli/nodeutility.cpp b/lib/cli/nodeutility.cpp
new file mode 100644
index 0000000..523532a
--- /dev/null
+++ b/lib/cli/nodeutility.cpp
@@ -0,0 +1,378 @@
+/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
+
+#include "cli/nodeutility.hpp"
+#include "cli/clicommand.hpp"
+#include "cli/variableutility.hpp"
+#include "base/atomic-file.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!";
+	}
+
+	AtomicFile fp (filename, 0644);
+
+	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.Commit();
+
+	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());
+	AtomicFile ofp (configurationFile, 0644);
+
+	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.Commit();
+
+	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());
+	AtomicFile ofp (constantsConfPath, 0644);
+
+	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.Commit();
+}