mirror of https://github.com/Icinga/icinga2.git
435 lines
12 KiB
C#
435 lines
12 KiB
C#
using System;
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using System.IO;
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using System.Text;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Windows.Forms;
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using System.Runtime.InteropServices;
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using System.Security.Cryptography.X509Certificates;
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using System.Threading;
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using System.Net.NetworkInformation;
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using Microsoft.Win32;
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using System.IO.Compression;
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using System.Diagnostics;
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using System.ServiceProcess;
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using System.Security.AccessControl;
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namespace Icinga
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{
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public partial class AgentWizard : Form
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{
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public AgentWizard()
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{
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InitializeComponent();
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txtInstanceName.Text = Icinga2InstanceName;
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}
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private void FatalError(string message)
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{
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MessageBox.Show(this, message, Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
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Application.Exit();
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}
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private void Warning(string message)
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{
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MessageBox.Show(this, message, Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
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}
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private string Icinga2InstallDir
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{
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get
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{
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RegistryKey rk = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Icinga Development Team\\ICINGA2");
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if (rk == null)
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return "";
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return (string)rk.GetValue("");
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}
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}
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private string Icinga2InstanceName
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{
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get
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{
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IPGlobalProperties props = IPGlobalProperties.GetIPGlobalProperties();
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string fqdn = props.HostName;
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if (props.DomainName != "")
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fqdn += "." + props.DomainName;
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return fqdn;
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}
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}
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private void EnableFeature(string feature)
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{
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using (FileStream fp = File.Open(Icinga2InstallDir + String.Format("\\etc\\icinga2\\features-enabled\\{0}.conf", feature), FileMode.Create)) {
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using (StreamWriter sw = new StreamWriter(fp, Encoding.ASCII)) {
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sw.Write(String.Format("include \"../features-available/{0}.conf\"\n", feature));
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}
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}
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}
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private void SetRetrievalStatus(int pct)
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{
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if (InvokeRequired) {
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Invoke((MethodInvoker)delegate { SetRetrievalStatus(pct); });
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return;
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}
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prgRetrieveCertificate.Value = pct;
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}
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private void SetConfigureStatus(int pct, string message)
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{
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if (InvokeRequired) {
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Invoke((MethodInvoker)delegate { SetConfigureStatus(pct, message); });
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return;
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}
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prgConfig.Value = pct;
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lblConfigStatus.Text = message;
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}
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private void VerifyCertificate(string host, string port)
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{
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SetRetrievalStatus(25);
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string pathPrefix = Icinga2InstallDir + "\\etc\\icinga2\\pki\\" + txtInstanceName.Text;
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ProcessStartInfo psi;
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if (!File.Exists(pathPrefix + ".crt")) {
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psi = new ProcessStartInfo();
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psi.FileName = Icinga2InstallDir + "\\sbin\\icinga2.exe";
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psi.Arguments = "pki new-cert --cn \"" + txtInstanceName.Text + "\" --keyfile \"" + pathPrefix + ".key\" --certfile \"" + pathPrefix + ".crt\"";
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psi.CreateNoWindow = true;
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psi.UseShellExecute = false;
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using (Process proc = Process.Start(psi)) {
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proc.WaitForExit();
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if (proc.ExitCode != 0) {
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Invoke((MethodInvoker)delegate { FatalError("The Windows service could not be installed."); });
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return;
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}
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}
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}
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SetRetrievalStatus(50);
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string trustedfile = Path.GetTempFileName();
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psi = new ProcessStartInfo();
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psi.FileName = Icinga2InstallDir + "\\sbin\\icinga2.exe";
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psi.Arguments = "pki save-cert --host \"" + host + "\" --port \"" + port + "\" --keyfile \"" + pathPrefix + ".key\" --certfile \"" + pathPrefix + ".crt\" --trustedfile \"" + trustedfile + "\"";
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psi.CreateNoWindow = true;
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psi.UseShellExecute = false;
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using (Process proc = Process.Start(psi)) {
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proc.WaitForExit();
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if (proc.ExitCode != 0) {
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Invoke((MethodInvoker)delegate { FatalError("Could not retrieve the master's X509 certificate."); });
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return;
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}
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}
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SetRetrievalStatus(100);
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X509Certificate2 cert = new X509Certificate2(trustedfile);
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Invoke((MethodInvoker)delegate { ShowCertificatePrompt(cert); });
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}
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private void ConfigureService()
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{
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SetConfigureStatus(0, "Updating configuration files...");
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using (FileStream fp = File.Open(Icinga2InstallDir + "\\etc\\icinga2\\features-available\\agent.conf", FileMode.Create)) {
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using (StreamWriter sw = new StreamWriter(fp, Encoding.ASCII)) {
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sw.Write(
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"/**\n" +
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" * The agent listener accepts checks from agents.\n" +
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" */\n" +
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"\n" +
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"library \"agent\"\n" +
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"\n" +
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"object AgentListener \"agent\" {\n" +
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" cert_path = SysconfDir + \"/icinga2/pki/agent/agent.crt\"\n" +
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" key_path = SysconfDir + \"/icinga2/pki/agent/agent.key\"\n" +
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" ca_path = SysconfDir + \"/icinga2/pki/agent/ca.crt\"\n"
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);
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/*if (rdoNoMaster.Checked)
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sw.Write(" upstream_name = \"{0}\"\n", txtMasterInstance.Text);*/
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if (rdoListener.Checked)
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sw.Write(" bind_port = \"{0}\"\n", txtListenerPort.Text);
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/*if (rdoConnect.Checked)
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sw.Write(
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" upstream_host = \"{0}\"\n" +
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" upstream_port = \"{1}\"\n", txtPeerHost.Text, txtPeerPort.Text
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);*/
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sw.Write("}\n");
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}
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}
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EnableFeature("api");
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EnableFeature("checker");
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SetConfigureStatus(50, "Setting ACLs for the Icinga 2 directory...");
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DirectoryInfo di = new DirectoryInfo(Icinga2InstallDir);
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DirectorySecurity ds = di.GetAccessControl();
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FileSystemAccessRule rule = new FileSystemAccessRule("NT AUTHORITY\\NetworkService",
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FileSystemRights.ReadAndExecute | FileSystemRights.Write | FileSystemRights.ListDirectory,
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InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit, PropagationFlags.None, AccessControlType.Allow);
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ds.AddAccessRule(rule);
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di.SetAccessControl(ds);
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SetConfigureStatus(75, "Installing the Icinga 2 service...");
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ProcessStartInfo psi = new ProcessStartInfo();
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psi.FileName = Icinga2InstallDir + "\\sbin\\icinga2.exe";
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psi.Arguments = "--scm-uninstall";
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psi.CreateNoWindow = true;
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psi.UseShellExecute = false;
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using (Process proc = Process.Start(psi)) {
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proc.WaitForExit();
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}
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psi = new ProcessStartInfo();
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psi.FileName = Icinga2InstallDir + "\\sbin\\icinga2.exe";
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psi.Arguments = "--scm-install daemon";
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psi.CreateNoWindow = true;
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psi.UseShellExecute = false;
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using (Process proc = Process.Start(psi)) {
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proc.WaitForExit();
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if (proc.ExitCode != 0) {
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Invoke((MethodInvoker)delegate { FatalError("The Windows service could not be installed."); });
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return;
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}
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}
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SetConfigureStatus(100, "Finished.");
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FinishConfigure();
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}
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private void FinishConfigure()
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{
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if (InvokeRequired) {
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Invoke((MethodInvoker)FinishConfigure);
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return;
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}
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tbcPages.SelectedTab = tabFinish;
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}
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private void AgentWizard_Shown(object sender, EventArgs e)
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{
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string installDir = Icinga2InstallDir;
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if (installDir == "")
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FatalError("Icinga 2 does not seem to be installed properly.");
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/* TODO: This is something the NSIS installer should do */
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Directory.CreateDirectory(installDir + "\\var\\cache\\icinga2");
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Directory.CreateDirectory(installDir + "\\var\\lib\\icinga2\\agent\\inventory");
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Directory.CreateDirectory(installDir + "\\var\\lib\\icinga2\\cluster\\config");
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Directory.CreateDirectory(installDir + "\\var\\lib\\icinga2\\cluster\\log");
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Directory.CreateDirectory(installDir + "\\var\\log\\icinga2\\compat\\archive");
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Directory.CreateDirectory(installDir + "\\var\\run\\icinga2\\cmd");
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Directory.CreateDirectory(installDir + "\\var\\spool\\icinga2\\perfdata");
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Directory.CreateDirectory(installDir + "\\var\\spool\\icinga2\\tmp");
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Directory.CreateDirectory(installDir + "\\etc\\icinga2\\pki\\agent");
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}
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private void btnBack_Click(object sender, EventArgs e)
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{
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int offset = 1;
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if (tbcPages.SelectedTab == tabVerifyCertificate)
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offset++;
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tbcPages.SelectedIndex -= offset;
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}
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private void btnNext_Click(object sender, EventArgs e)
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{
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if (tbcPages.SelectedTab == tabParameters) {
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if (txtInstanceName.Text.Length == 0) {
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Warning("Please enter an instance name.");
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return;
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}
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if (rdoNoMaster.Checked && lvwEndpoints.Items.Count == 0) {
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Warning("You need to add at least one master endpoint.");
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return;
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}
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if (rdoListener.Checked && (txtListenerPort.Text == "")) {
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Warning("You need to specify a listener port.");
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return;
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}
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}
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if (tbcPages.SelectedTab == tabFinish)
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Application.Exit();
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tbcPages.SelectedIndex++;
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}
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private void btnCancel_Click(object sender, EventArgs e)
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{
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Application.Exit();
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}
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private void tbcPages_SelectedIndexChanged(object sender, EventArgs e)
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{
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Refresh();
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btnBack.Enabled = (tbcPages.SelectedTab == tabVerifyCertificate);
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btnNext.Enabled = (tbcPages.SelectedTab == tabParameters || tbcPages.SelectedTab == tabVerifyCertificate || tbcPages.SelectedTab == tabFinish);
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if (tbcPages.SelectedTab == tabFinish) {
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btnNext.Text = "&Finish >";
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btnCancel.Enabled = false;
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}
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if (tbcPages.SelectedTab == tabRetrieveCertificate) {
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ListViewItem lvi = lvwEndpoints.Items[0];
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Thread thread = new Thread((ThreadStart)delegate { VerifyCertificate(lvi.SubItems[0].Text, lvi.SubItems[1].Text); });
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thread.Start();
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}
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/*if (tbcPages.SelectedTab == tabParameters &&
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!File.Exists(Icinga2InstallDir + "\\etc\\icinga2\\pki\\agent\\agent.crt")) {
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byte[] bytes = Convert.FromBase64String(txtBundle.Text);
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MemoryStream ms = new MemoryStream(bytes);
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GZipStream gz = new GZipStream(ms, CompressionMode.Decompress);
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MemoryStream ms2 = new MemoryStream();
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byte[] buffer = new byte[512];
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int rc;
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while ((rc = gz.Read(buffer, 0, buffer.Length)) > 0)
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ms2.Write(buffer, 0, rc);
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ms2.Position = 0;
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TarReader tr = new TarReader(ms2);
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tr.ReadToEnd(Icinga2InstallDir + "\\etc\\icinga2\\pki\\agent");
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}*/
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if (tbcPages.SelectedTab == tabConfigure) {
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Thread thread = new Thread(ConfigureService);
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thread.Start();
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}
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}
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private void RadioMaster_CheckedChanged(object sender, EventArgs e)
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{
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lvwEndpoints.Enabled = !rdoNewMaster.Checked;
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btnAddEndpoint.Enabled = !rdoNewMaster.Checked;
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btnRemoveEndpoint.Enabled = !rdoNewMaster.Checked && lvwEndpoints.SelectedItems.Count > 0;
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}
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private void RadioListener_CheckedChanged(object sender, EventArgs e)
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{
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txtListenerPort.Enabled = rdoListener.Checked;
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}
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private void AddCertificateField(string name, string shortValue, string longValue = null)
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{
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ListViewItem lvi = new ListViewItem();
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lvi.Text = name;
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lvi.SubItems.Add(shortValue);
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if (longValue == null)
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longValue = shortValue;
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lvi.Tag = longValue;
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lvwX509Fields.Items.Add(lvi);
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}
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private string PadText(string input)
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{
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string output = "";
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for (int i = 0; i < input.Length; i += 2) {
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if (output != "")
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output += " ";
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int len = 2;
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if (input.Length - i < 2)
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len = input.Length - i;
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output += input.Substring(i, len);
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}
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return output;
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}
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private void ShowCertificatePrompt(X509Certificate2 certificate)
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{
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txtX509Issuer.Text = certificate.Issuer;
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txtX509Subject.Text = certificate.Subject;
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AddCertificateField("Version", "V" + certificate.Version.ToString());
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AddCertificateField("Serial number", certificate.SerialNumber);
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AddCertificateField("Signature algorithm", certificate.SignatureAlgorithm.FriendlyName);
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AddCertificateField("Valid from", certificate.NotBefore.ToString());
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AddCertificateField("Valid to", certificate.NotAfter.ToString());
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string pkey = BitConverter.ToString(certificate.PublicKey.EncodedKeyValue.RawData).Replace("-", " ");
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AddCertificateField("Public key", certificate.PublicKey.Oid.FriendlyName + " (" + certificate.PublicKey.Key.KeySize + " bits)", pkey);
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string thumbprint = PadText(certificate.Thumbprint);
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AddCertificateField("Thumbprint", thumbprint);
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tbcPages.SelectedTab = tabVerifyCertificate;
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}
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private void btnAddEndpoint_Click(object sender, EventArgs e)
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{
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EndpointInputBox eib = new EndpointInputBox();
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if (eib.ShowDialog(this) == DialogResult.Cancel)
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return;
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ListViewItem lvi = new ListViewItem();
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lvi.Text = eib.txtHost.Text;
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lvi.SubItems.Add(eib.txtPort.Text);
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lvwEndpoints.Items.Add(lvi);
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}
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private void lvwEndpoints_SelectedIndexChanged(object sender, EventArgs e)
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{
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btnRemoveEndpoint.Enabled = lvwEndpoints.SelectedItems.Count > 0;
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}
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private void lvwX509Fields_SelectedIndexChanged(object sender, EventArgs e)
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{
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if (lvwX509Fields.SelectedItems.Count == 0)
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return;
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ListViewItem lvi = lvwX509Fields.SelectedItems[0];
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txtX509Field.Text = (string)lvi.Tag;
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}
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private void btnRemoveEndpoint_Click(object sender, EventArgs e)
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{
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while (lvwEndpoints.SelectedItems.Count > 0) {
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lvwEndpoints.Items.Remove(lvwEndpoints.SelectedItems[0]);
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}
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}
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}
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}
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