src/org/cacert/gigi/Launcher.java

   1 package org.cacert.gigi;
   2
   3 import java.io.ByteArrayInputStream;
   4 import java.io.File;
   5 import java.io.FileInputStream;
   6 import java.io.InputStream;
   7 import java.io.IOException;
   8 import java.net.HttpURLConnection;
   9 import java.net.InetSocketAddress;
  10 import java.security.GeneralSecurityException;
  11 import java.security.Key;
  12 import java.security.KeyStore;
  13 import java.security.KeyStoreException;
  14 import java.security.NoSuchAlgorithmException;
  15 import java.security.UnrecoverableKeyException;
  16 import java.security.cert.Certificate;
  17 import java.security.cert.CertificateException;
  18 import java.security.cert.CertificateFactory;
  19 import java.security.cert.X509Certificate;
  20 import java.util.List;
  21 import java.util.Locale;
  22 import java.util.Properties;
  23 import java.util.TimeZone;
  24
  25 import javax.net.ssl.ExtendedSSLSession;
  26 import javax.net.ssl.SNIHostName;
  27 import javax.net.ssl.SNIServerName;
  28 import javax.net.ssl.SSLEngine;
  29 import javax.net.ssl.SSLParameters;
  30 import javax.net.ssl.SSLSession;
  31 import javax.servlet.http.HttpServletResponse;
  32
  33 import org.cacert.gigi.api.GigiAPI;
  34 import org.cacert.gigi.email.EmailProvider;
  35 import org.cacert.gigi.natives.SetUID;
  36 import org.cacert.gigi.util.CipherInfo;
  37 import org.cacert.gigi.util.PEM;
  38 import org.cacert.gigi.util.ServerConstants;
  39 import org.eclipse.jetty.http.HttpFields;
  40 import org.eclipse.jetty.http.HttpHeader;
  41 import org.eclipse.jetty.http.HttpVersion;
  42 import org.eclipse.jetty.server.Connector;
  43 import org.eclipse.jetty.server.Handler;
  44 import org.eclipse.jetty.server.HttpConfiguration;
  45 import org.eclipse.jetty.server.HttpConfiguration.Customizer;
  46 import org.eclipse.jetty.server.HttpConnectionFactory;
  47 import org.eclipse.jetty.server.Request;
  48 import org.eclipse.jetty.server.SecureRequestCustomizer;
  49 import org.eclipse.jetty.server.Server;
  50 import org.eclipse.jetty.server.ServerConnector;
  51 import org.eclipse.jetty.server.SessionManager;
  52 import org.eclipse.jetty.server.SslConnectionFactory;
  53 import org.eclipse.jetty.server.handler.ContextHandler;
  54 import org.eclipse.jetty.server.handler.HandlerList;
  55 import org.eclipse.jetty.server.handler.HandlerWrapper;
  56 import org.eclipse.jetty.server.handler.ResourceHandler;
  57 import org.eclipse.jetty.servlet.ErrorPageErrorHandler;
  58 import org.eclipse.jetty.servlet.ServletContextHandler;
  59 import org.eclipse.jetty.servlet.ServletHolder;
  60 import org.eclipse.jetty.util.log.Log;
  61 import org.eclipse.jetty.util.resource.Resource;
  62 import org.eclipse.jetty.util.ssl.SslContextFactory;
  63
  64 public class Launcher {
  65
  66     class ExtendedForwarded implements Customizer {
  67
  68         @Override
  69         public void customize(Connector connector, HttpConfiguration config, Request request) {
  70             HttpFields httpFields = request.getHttpFields();
  71
  72             String ip = httpFields.getStringField("X-Real-IP");
  73             String proto = httpFields.getStringField("X-Real-Proto");
  74             String cert = httpFields.getStringField("X-Client-Cert");
  75             request.setSecure("https".equals(proto));
  76             request.setScheme(proto);
  77             if ( !"https".equals(proto)) {
  78                 cert = null;
  79
  80             }
  81             if (cert != null) {
  82                 X509Certificate[] certs = new X509Certificate[1];
  83                 try {
  84                     certs[0] = (X509Certificate) CertificateFactory.getInstance("X509").generateCertificate(new ByteArrayInputStream(PEM.decode("CERTIFICATE", cert)));
  85                     request.setAttribute("javax.servlet.request.X509Certificate", certs);
  86                 } catch (CertificateException e) {
  87                     e.printStackTrace();
  88                 }
  89             }
  90             if (ip != null) {
  91                 String[] parts = ip.split(":");
  92                 if (parts.length == 2) {
  93                     request.setRemoteAddr(InetSocketAddress.createUnresolved(parts[0], Integer.parseInt(parts[1])));
  94                 }
  95             }
  96
  97         }
  98     }
  99
 100     public static void main(String[] args) throws Exception {
 101         System.setProperty("jdk.tls.ephemeralDHKeySize", "4096");
 102         InputStream in;
 103         if (args.length >= 1) {
 104             in = new FileInputStream(new File(args[0]));
 105         } else {
 106             in = System.in;
 107         }
 108         new Launcher().boot(in);
 109     }
 110
 111     Server s;
 112
 113     GigiConfig conf;
 114
 115     private boolean isSystemPort(int port) {
 116         return 1 <= port && port <= 1024;
 117     }
 118
 119     public synchronized void boot(InputStream in) throws Exception {
 120         Locale.setDefault(Locale.ENGLISH);
 121         TimeZone.setDefault(TimeZone.getTimeZone("UTC"));
 122         HttpURLConnection.setFollowRedirects(false);
 123
 124         conf = GigiConfig.parse(in);
 125         ServerConstants.init(conf.getMainProps());
 126         initEmails(conf);
 127
 128         s = new Server();
 129
 130         initConnectors();
 131         initHandlers();
 132
 133         s.start();
 134         if ((isSystemPort(ServerConstants.getSecurePort()) || isSystemPort(ServerConstants.getPort())) && !System.getProperty("os.name").toLowerCase().contains("win")) {
 135             String uid_s = conf.getMainProps().getProperty("gigi.uid", Integer.toString(65536 - 2));
 136             String gid_s = conf.getMainProps().getProperty("gigi.gid", Integer.toString(65536 - 2));
 137             try {
 138                 int uid = Integer.parseInt(uid_s);
 139                 int gid = Integer.parseInt(gid_s);
 140                 if (uid == -1 && gid == -1) {
 141                     // skip setuid step
 142                 } else if (uid > 0 && gid > 0 && uid < 65536 && gid < 65536) {
 143                     SetUID.Status status = new SetUID().setUid(uid, gid);
 144                     if ( !status.getSuccess()) {
 145                         Log.getLogger(Launcher.class).warn(status.getMessage());
 146                     }
 147                 } else {
 148                     Log.getLogger(Launcher.class).warn("Invalid uid or gid (must satisfy 0 < id < 65536)");
 149                 }
 150             } catch (NumberFormatException e) {
 151                 Log.getLogger(Launcher.class).warn("Invalid gigi.uid or gigi.gid", e);
 152             }
 153         }
 154     }
 155
 156     private HttpConfiguration createHttpConfiguration() {
 157         // SSL HTTP Configuration
 158         HttpConfiguration httpsConfig = new HttpConfiguration();
 159         httpsConfig.setSendServerVersion(false);
 160         httpsConfig.setSendXPoweredBy(false);
 161         return httpsConfig;
 162     }
 163
 164     private void initConnectors() throws GeneralSecurityException, IOException {
 165         HttpConfiguration httpConfig = createHttpConfiguration();
 166         if (conf.getMainProps().getProperty("proxy", "false").equals("true")) {
 167             httpConfig.addCustomizer(new ExtendedForwarded());
 168             s.setConnectors(new Connector[] {
 169                     ConnectorsLauncher.createConnector(conf, s, httpConfig, false)
 170             });
 171         } else {
 172             HttpConfiguration httpsConfig = createHttpConfiguration();
 173             // for client-cert auth
 174             httpsConfig.addCustomizer(new SecureRequestCustomizer());
 175             s.setConnectors(new Connector[] {
 176                     ConnectorsLauncher.createConnector(conf, s, httpsConfig, true), ConnectorsLauncher.createConnector(conf, s, httpConfig, false)
 177             });
 178         }
 179     }
 180
 181     private void initEmails(GigiConfig conf) throws GeneralSecurityException, IOException, KeyStoreException, NoSuchAlgorithmException, UnrecoverableKeyException {
 182         KeyStore privateStore = conf.getPrivateStore();
 183         Certificate mail = null;
 184         Key k = null;
 185         if (privateStore != null && privateStore.containsAlias("mail")) {
 186             mail = privateStore.getCertificate("mail");
 187             k = privateStore.getKey("mail", conf.getPrivateStorePw().toCharArray());
 188         }
 189         EmailProvider.initSystem(conf.getMainProps(), mail, k);
 190     }
 191
 192     private static class ConnectorsLauncher {
 193
 194         private ConnectorsLauncher() {}
 195
 196         protected static ServerConnector createConnector(GigiConfig conf, Server s, HttpConfiguration httpConfig, boolean doHttps) throws GeneralSecurityException, IOException {
 197             ServerConnector connector;
 198             int port;
 199             if (doHttps) {
 200                 connector = new ServerConnector(s, createConnectionFactory(conf), new HttpConnectionFactory(httpConfig));
 201                 port = ServerConstants.getSecurePort();
 202             } else {
 203                 connector = new ServerConnector(s, new HttpConnectionFactory(httpConfig));
 204                 port = ServerConstants.getPort();
 205             }
 206             if (port == -1) {
 207                 connector.setInheritChannel(true);
 208             } else {
 209                 connector.setHost(conf.getMainProps().getProperty("host"));
 210                 connector.setPort(port);
 211             }
 212             connector.setAcceptQueueSize(100);
 213             return connector;
 214         }
 215
 216         private static SslConnectionFactory createConnectionFactory(GigiConfig conf) throws GeneralSecurityException, IOException {
 217             final SslContextFactory sslContextFactory = generateSSLContextFactory(conf, "www");
 218             final SslContextFactory secureContextFactory = generateSSLContextFactory(conf, "secure");
 219             secureContextFactory.setWantClientAuth(true);
 220             secureContextFactory.setNeedClientAuth(true);
 221             final SslContextFactory staticContextFactory = generateSSLContextFactory(conf, "static");
 222             final SslContextFactory apiContextFactory = generateSSLContextFactory(conf, "api");
 223             apiContextFactory.setWantClientAuth(true);
 224             try {
 225                 secureContextFactory.start();
 226                 staticContextFactory.start();
 227                 apiContextFactory.start();
 228             } catch (Exception e) {
 229                 e.printStackTrace();
 230             }
 231             return new SslConnectionFactory(sslContextFactory, HttpVersion.HTTP_1_1.asString()) {
 232
 233                 @Override
 234                 public boolean shouldRestartSSL() {
 235                     return true;
 236                 }
 237
 238                 @Override
 239                 public SSLEngine restartSSL(SSLSession sslSession) {
 240                     SSLEngine e2 = null;
 241                     if (sslSession instanceof ExtendedSSLSession) {
 242                         ExtendedSSLSession es = (ExtendedSSLSession) sslSession;
 243                         List<SNIServerName> names = es.getRequestedServerNames();
 244                         for (SNIServerName sniServerName : names) {
 245                             if (sniServerName instanceof SNIHostName) {
 246                                 SNIHostName host = (SNIHostName) sniServerName;
 247                                 String hostname = host.getAsciiName();
 248                                 if (hostname.equals(ServerConstants.getWwwHostName())) {
 249                                     e2 = sslContextFactory.newSSLEngine();
 250                                 } else if (hostname.equals(ServerConstants.getStaticHostName())) {
 251                                     e2 = staticContextFactory.newSSLEngine();
 252                                 } else if (hostname.equals(ServerConstants.getSecureHostName())) {
 253                                     e2 = secureContextFactory.newSSLEngine();
 254                                 } else if (hostname.equals(ServerConstants.getApiHostName())) {
 255                                     e2 = apiContextFactory.newSSLEngine();
 256                                 }
 257                                 break;
 258                             }
 259                         }
 260                     }
 261                     if (e2 == null) {
 262                         e2 = sslContextFactory.newSSLEngine(sslSession.getPeerHost(), sslSession.getPeerPort());
 263                     }
 264                     e2.setUseClientMode(false);
 265                     return e2;
 266                 }
 267             };
 268         }
 269
 270         private static SslContextFactory generateSSLContextFactory(GigiConfig conf, String alias) throws GeneralSecurityException, IOException {
 271             SslContextFactory scf = new SslContextFactory() {
 272
 273                 String[] ciphers = null;
 274
 275                 @Override
 276                 public void customize(SSLEngine sslEngine) {
 277                     super.customize(sslEngine);
 278
 279                     SSLParameters ssl = sslEngine.getSSLParameters();
 280                     ssl.setUseCipherSuitesOrder(true);
 281                     if (ciphers == null) {
 282                         ciphers = CipherInfo.filter(sslEngine.getSupportedCipherSuites());
 283                     }
 284
 285                     ssl.setCipherSuites(ciphers);
 286                     sslEngine.setSSLParameters(ssl);
 287
 288                 }
 289
 290             };
 291             scf.setRenegotiationAllowed(false);
 292
 293             scf.setProtocol("TLS");
 294             scf.setIncludeProtocols("TLSv1", "TLSv1.1", "TLSv1.2");
 295             scf.setTrustStore(conf.getTrustStore());
 296             KeyStore privateStore = conf.getPrivateStore();
 297             scf.setKeyStorePassword(conf.getPrivateStorePw());
 298             scf.setKeyStore(privateStore);
 299             scf.setCertAlias(alias);
 300             return scf;
 301         }
 302     }
 303
 304     private void initHandlers() throws GeneralSecurityException, IOException {
 305         HandlerList hl = new HandlerList();
 306         hl.setHandlers(new Handler[] {
 307                 ContextLauncher.generateStaticContext(), ContextLauncher.generateGigiContexts(conf.getMainProps(), conf.getTrustStore()), ContextLauncher.generateAPIContext()
 308         });
 309         s.setHandler(hl);
 310     }
 311
 312     private static class ContextLauncher {
 313
 314         private ContextLauncher() {}
 315
 316         protected static Handler generateGigiContexts(Properties conf, KeyStore trust) {
 317             ServletHolder webAppServlet = new ServletHolder(new Gigi(conf, trust));
 318
 319             ContextHandler ch = generateGigiServletContext(webAppServlet);
 320             ch.setVirtualHosts(new String[] {
 321                     ServerConstants.getWwwHostName()
 322             });
 323             ContextHandler chSecure = generateGigiServletContext(webAppServlet);
 324             chSecure.setVirtualHosts(new String[] {
 325                     ServerConstants.getSecureHostName()
 326             });
 327
 328             HandlerList hl = new HandlerList();
 329             hl.setHandlers(new Handler[] {
 330                     ch, chSecure
 331             });
 332             return hl;
 333         }
 334
 335         private static ContextHandler generateGigiServletContext(ServletHolder webAppServlet) {
 336             final ResourceHandler rh = generateResourceHandler();
 337             rh.setResourceBase("static/www");
 338
 339             HandlerWrapper hw = new PolicyRedirector();
 340             hw.setHandler(rh);
 341
 342             ServletContextHandler servlet = new ServletContextHandler(ServletContextHandler.SESSIONS);
 343             servlet.setInitParameter(SessionManager.__SessionCookieProperty, "SomeCA-Session");
 344             servlet.addServlet(webAppServlet, "/*");
 345             ErrorPageErrorHandler epeh = new ErrorPageErrorHandler();
 346             epeh.addErrorPage(404, "/error");
 347             epeh.addErrorPage(403, "/denied");
 348             servlet.setErrorHandler(epeh);
 349
 350             HandlerList hl = new HandlerList();
 351             hl.setHandlers(new Handler[] {
 352                     hw, servlet
 353             });
 354
 355             ContextHandler ch = new ContextHandler();
 356             ch.setHandler(hl);
 357             return ch;
 358         }
 359
 360         protected static Handler generateStaticContext() {
 361             final ResourceHandler rh = generateResourceHandler();
 362             rh.setResourceBase("static/static");
 363
 364             ContextHandler ch = new ContextHandler();
 365             ch.setHandler(rh);
 366             ch.setVirtualHosts(new String[] {
 367                     ServerConstants.getStaticHostName()
 368             });
 369
 370             return ch;
 371         }
 372
 373         private static ResourceHandler generateResourceHandler() {
 374             ResourceHandler rh = new ResourceHandler() {
 375
 376                 @Override
 377                 protected void doResponseHeaders(HttpServletResponse response, Resource resource, String mimeType) {
 378                     super.doResponseHeaders(response, resource, mimeType);
 379                     response.setDateHeader(HttpHeader.EXPIRES.asString(), System.currentTimeMillis() + 1000L * 60 * 60 * 24 * 7);
 380                 }
 381             };
 382             rh.setEtags(true);
 383             return rh;
 384         }
 385
 386         protected static Handler generateAPIContext() {
 387             ServletContextHandler sch = new ServletContextHandler();
 388
 389             sch.addVirtualHosts(new String[] {
 390                     ServerConstants.getApiHostName()
 391             });
 392             sch.addServlet(new ServletHolder(new GigiAPI()), "/*");
 393             return sch;
 394         }
 395
 396     }
 397
 398 }