src/org/cacert/gigi/Gigi.java

   1 package org.cacert.gigi;
   2
   3 import java.io.IOException;
   4 import java.io.PrintWriter;
   5 import java.io.UnsupportedEncodingException;
   6 import java.security.KeyStore;
   7 import java.security.cert.X509Certificate;
   8 import java.util.Calendar;
   9 import java.util.Collections;
  10 import java.util.HashMap;
  11 import java.util.LinkedList;
  12 import java.util.Locale;
  13 import java.util.Map;
  14 import java.util.Properties;
  15 import java.util.regex.Pattern;
  16
  17 import javax.servlet.ServletException;
  18 import javax.servlet.http.HttpServlet;
  19 import javax.servlet.http.HttpServletRequest;
  20 import javax.servlet.http.HttpServletResponse;
  21 import javax.servlet.http.HttpSession;
  22
  23 import org.cacert.gigi.database.DatabaseConnection;
  24 import org.cacert.gigi.dbObjects.DomainPingConfiguration;
  25 import org.cacert.gigi.dbObjects.User;
  26 import org.cacert.gigi.localisation.Language;
  27 import org.cacert.gigi.output.Menu;
  28 import org.cacert.gigi.output.PageMenuItem;
  29 import org.cacert.gigi.output.SimpleMenuItem;
  30 import org.cacert.gigi.output.template.Form.CSRFException;
  31 import org.cacert.gigi.output.template.Outputable;
  32 import org.cacert.gigi.output.template.Template;
  33 import org.cacert.gigi.pages.LoginPage;
  34 import org.cacert.gigi.pages.LogoutPage;
  35 import org.cacert.gigi.pages.MainPage;
  36 import org.cacert.gigi.pages.Page;
  37 import org.cacert.gigi.pages.PolicyIndex;
  38 import org.cacert.gigi.pages.RootCertPage;
  39 import org.cacert.gigi.pages.StaticPage;
  40 import org.cacert.gigi.pages.TestSecure;
  41 import org.cacert.gigi.pages.Verify;
  42 import org.cacert.gigi.pages.account.ChangePasswordPage;
  43 import org.cacert.gigi.pages.account.MyDetails;
  44 import org.cacert.gigi.pages.account.certs.CertificateAdd;
  45 import org.cacert.gigi.pages.account.certs.Certificates;
  46 import org.cacert.gigi.pages.account.domain.DomainOverview;
  47 import org.cacert.gigi.pages.account.mail.MailOverview;
  48 import org.cacert.gigi.pages.admin.TTPAdminPage;
  49 import org.cacert.gigi.pages.admin.support.FindDomainPage;
  50 import org.cacert.gigi.pages.admin.support.FindUserPage;
  51 import org.cacert.gigi.pages.admin.support.SupportUserDetailsPage;
  52 import org.cacert.gigi.pages.error.AccessDenied;
  53 import org.cacert.gigi.pages.error.PageNotFound;
  54 import org.cacert.gigi.pages.main.RegisterPage;
  55 import org.cacert.gigi.pages.orga.CreateOrgPage;
  56 import org.cacert.gigi.pages.orga.ViewOrgPage;
  57 import org.cacert.gigi.pages.wot.AssurePage;
  58 import org.cacert.gigi.pages.wot.MyPoints;
  59 import org.cacert.gigi.pages.wot.RequestTTPPage;
  60 import org.cacert.gigi.ping.PingerDaemon;
  61 import org.cacert.gigi.util.ServerConstants;
  62
  63 public class Gigi extends HttpServlet {
  64
  65     private class MenuBuilder {
  66
  67         private LinkedList<Menu> categories = new LinkedList<Menu>();
  68
  69         private HashMap<String, Page> pages = new HashMap<String, Page>();
  70
  71         private Menu rootMenu;
  72
  73         public MenuBuilder() {}
  74
  75         private void putPage(String path, Page p, String category) {
  76             pages.put(path, p);
  77             if (category == null) {
  78                 return;
  79             }
  80             Menu m = getMenu(category);
  81             m.addItem(new PageMenuItem(p, path.replaceFirst("/?\\*$", "")));
  82
  83         }
  84
  85         private Menu getMenu(String category) {
  86             Menu m = null;
  87             for (Menu menu : categories) {
  88                 if (menu.getMenuName().equals(category)) {
  89                     m = menu;
  90                     break;
  91                 }
  92             }
  93             if (m == null) {
  94                 m = new Menu(category);
  95                 categories.add(m);
  96             }
  97             return m;
  98         }
  99
 100         public Menu generateMenu() throws ServletException {
 101             putPage("/denied", new AccessDenied(), null);
 102             putPage("/error", new PageNotFound(), null);
 103             putPage("/login", new LoginPage("Password Login"), "CAcert.org");
 104             getMenu("CAcert.org").addItem(new SimpleMenuItem("https://" + ServerConstants.getSecureHostNamePort() + "/login", "Certificate Login") {
 105
 106                 @Override
 107                 public boolean isPermitted(User u) {
 108                     return u == null;
 109                 }
 110             });
 111             putPage("/", new MainPage("CAcert - Home"), null);
 112             putPage("/roots", new RootCertPage(truststore), "CAcert.org");
 113             putPage(ChangePasswordPage.PATH, new ChangePasswordPage(), "My Account");
 114             putPage(LogoutPage.PATH, new LogoutPage("Logout"), "My Account");
 115             putPage("/secure", new TestSecure(), null);
 116             putPage(Verify.PATH, new Verify(), null);
 117             putPage(AssurePage.PATH + "/*", new AssurePage(), "Web of Trust");
 118             putPage(Certificates.PATH + "/*", new Certificates(), "Certificates");
 119             putPage(MyDetails.PATH, new MyDetails(), "My Account");
 120             putPage(RegisterPage.PATH, new RegisterPage(), "CAcert.org");
 121             putPage(CertificateAdd.PATH, new CertificateAdd(), "Certificates");
 122             putPage(MailOverview.DEFAULT_PATH, new MailOverview("My email addresses"), "Certificates");
 123             putPage(DomainOverview.PATH + "*", new DomainOverview("Domains"), "Certificates");
 124             putPage(MyPoints.PATH, new MyPoints("My Points"), "Web of Trust");
 125             putPage(RequestTTPPage.PATH, new RequestTTPPage(), "Web of Trust");
 126             putPage(TTPAdminPage.PATH + "/*", new TTPAdminPage(), "Admin");
 127             putPage(CreateOrgPage.DEFAULT_PATH, new CreateOrgPage(), "Organisation Admin");
 128             putPage(ViewOrgPage.DEFAULT_PATH + "/*", new ViewOrgPage(), "Organisation Admin");
 129             putPage(FindDomainPage.PATH, new FindDomainPage("Find Domain"), "System Admin");
 130             putPage(FindUserPage.PATH, new FindUserPage("Find User"), "System Admin");
 131             putPage(SupportUserDetailsPage.PATH + "*", new SupportUserDetailsPage("Support: User Details"), null);
 132             if (testing) {
 133                 try {
 134                     Class<?> manager = Class.forName("org.cacert.gigi.pages.Manager");
 135                     Page p = (Page) manager.getMethod("getInstance").invoke(null);
 136                     String pa = (String) manager.getField("PATH").get(null);
 137                     putPage(pa + "/*", p, "Gigi test server");
 138                 } catch (ReflectiveOperationException e) {
 139                     e.printStackTrace();
 140                 }
 141             }
 142
 143             try {
 144                 putPage("/wot/rules", new StaticPage("Web of Trust Rules", AssurePage.class.getResourceAsStream("Rules.templ")), "Web of Trust");
 145             } catch (UnsupportedEncodingException e) {
 146                 throw new ServletException(e);
 147             }
 148             baseTemplate = new Template(Gigi.class.getResource("Gigi.templ"));
 149             rootMenu = new Menu("Main");
 150             Menu about = new Menu("About CAcert.org");
 151             categories.add(about);
 152
 153             about.addItem(new SimpleMenuItem("//blog.cacert.org/", "CAcert News"));
 154             about.addItem(new SimpleMenuItem("//wiki.cacert.org/", "Wiki Documentation"));
 155             putPage(PolicyIndex.DEFAULT_PATH, new PolicyIndex(), "About CAcert.org");
 156             about.addItem(new SimpleMenuItem("//wiki.cacert.org/FAQ/Privileges", "Point System"));
 157             about.addItem(new SimpleMenuItem("//bugs.cacert.org/", "Bug Database"));
 158             about.addItem(new SimpleMenuItem("//wiki.cacert.org/Board", "CAcert Board"));
 159             about.addItem(new SimpleMenuItem("//lists.cacert.org/wws", "Mailing Lists"));
 160             about.addItem(new SimpleMenuItem("//blog.CAcert.org/feed", "RSS News Feed"));
 161
 162             Menu languages = new Menu("Translations");
 163             for (Locale l : Language.getSupportedLocales()) {
 164                 languages.addItem(new SimpleMenuItem("?lang=" + l.toString(), l.getDisplayName(l)));
 165             }
 166             categories.add(languages);
 167             for (Menu menu : categories) {
 168                 menu.prepare();
 169                 rootMenu.addItem(menu);
 170             }
 171
 172             rootMenu.prepare();
 173             return rootMenu;
 174         }
 175
 176         public Map<String, Page> getPages() {
 177             return Collections.unmodifiableMap(pages);
 178         }
 179     }
 180
 181     public static final String LOGGEDIN = "loggedin";
 182
 183     public static final String CERT_SERIAL = "org.cacert.gigi.serial";
 184
 185     public static final String CERT_ISSUER = "org.cacert.gigi.issuer";
 186
 187     public static final String USER = "user";
 188
 189     public static final String LOGIN_METHOD = "org.cacert.gigi.loginMethod";
 190
 191     private static final long serialVersionUID = -6386785421902852904L;
 192
 193     private static Gigi instance;
 194
 195     private Template baseTemplate;
 196
 197     private PingerDaemon pinger;
 198
 199     private KeyStore truststore;
 200
 201     private boolean testing;
 202
 203     private Menu rootMenu;
 204
 205     private Map<String, Page> pages;
 206
 207     private boolean firstInstanceInited = false;
 208
 209     public Gigi(Properties conf, KeyStore truststore) {
 210         synchronized (Gigi.class) {
 211             if (instance != null) {
 212                 throw new IllegalStateException("Multiple Gigi instances!");
 213             }
 214             testing = conf.getProperty("testing") != null;
 215             instance = this;
 216             DatabaseConnection.init(conf);
 217             this.truststore = truststore;
 218             pinger = new PingerDaemon(truststore);
 219             pinger.start();
 220         }
 221     }
 222
 223     @Override
 224     public synchronized void init() throws ServletException {
 225         if (firstInstanceInited) {
 226             super.init();
 227             return;
 228         }
 229         MenuBuilder mb = new MenuBuilder();
 230         rootMenu = mb.generateMenu();
 231         pages = mb.getPages();
 232
 233         firstInstanceInited = true;
 234         super.init();
 235     }
 236
 237     private Page getPage(String pathInfo) {
 238         if (pathInfo.endsWith("/") && !pathInfo.equals("/")) {
 239             pathInfo = pathInfo.substring(0, pathInfo.length() - 1);
 240         }
 241         Page page = pages.get(pathInfo);
 242         if (page != null) {
 243             return page;
 244         }
 245         page = pages.get(pathInfo + "/*");
 246         if (page != null) {
 247             return page;
 248         }
 249         int idx = pathInfo.lastIndexOf('/');
 250         pathInfo = pathInfo.substring(0, idx);
 251
 252         page = pages.get(pathInfo + "/*");
 253         if (page != null) {
 254             return page;
 255         }
 256         return null;
 257
 258     }
 259
 260     private static String staticTemplateVarHttp = "http://" + ServerConstants.getStaticHostNamePort();
 261
 262     private static String staticTemplateVarHttps = "https://" + ServerConstants.getStaticHostNamePortSecure();
 263
 264     private static String getStaticTemplateVar(boolean https) {
 265         if (https) {
 266             return staticTemplateVarHttps;
 267         } else {
 268             return staticTemplateVarHttp;
 269         }
 270     }
 271
 272     @Override
 273     protected void service(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
 274         boolean isSecure = req.getServerPort() == ServerConstants.getSecurePort();
 275         addXSSHeaders(resp, isSecure);
 276         // Firefox only sends this, if it's a cross domain access; safari sends
 277         // it always
 278         String originHeader = req.getHeader("Origin");
 279         if (originHeader != null //
 280                 &&
 281                 !(originHeader.matches("^" + Pattern.quote("https://" + ServerConstants.getWwwHostNamePortSecure()) + "(/.*|)") || //
 282                         originHeader.matches("^" + Pattern.quote("http://" + ServerConstants.getWwwHostNamePort()) + "(/.*|)") || //
 283                 originHeader.matches("^" + Pattern.quote("https://" + ServerConstants.getSecureHostNamePort()) + "(/.*|)"))) {
 284             resp.setContentType("text/html; charset=utf-8");
 285             resp.getWriter().println("<html><head><title>Alert</title></head><body>No cross domain access allowed.<br/><b>If you don't know why you're seeing this you may have been fished! Please change your password immediately!</b></body></html>");
 286             return;
 287         }
 288         HttpSession hs = req.getSession();
 289         String clientSerial = (String) hs.getAttribute(CERT_SERIAL);
 290         if (clientSerial != null) {
 291             X509Certificate[] cert = (X509Certificate[]) req.getAttribute("javax.servlet.request.X509Certificate");
 292             if (cert == null || cert[0] == null//
 293                     || !cert[0].getSerialNumber().toString(16).toUpperCase().equals(clientSerial) //
 294                     || !cert[0].getIssuerDN().equals(hs.getAttribute(CERT_ISSUER))) {
 295                 hs.invalidate();
 296                 resp.sendError(403, "Certificate mismatch.");
 297                 return;
 298             }
 299
 300         }
 301         if (req.getParameter("lang") != null) {
 302             Locale l = Language.getLocaleFromString(req.getParameter("lang"));
 303             Language lu = Language.getInstance(l);
 304             req.getSession().setAttribute(Language.SESSION_ATTRIB_NAME, lu.getLocale());
 305         }
 306         final Page p = getPage(req.getPathInfo());
 307
 308         if (p != null) {
 309             if ( !isSecure && (p.needsLogin() || p instanceof LoginPage || p instanceof RegisterPage)) {
 310                 resp.sendRedirect("https://" + ServerConstants.getWwwHostNamePortSecure() + req.getPathInfo());
 311                 return;
 312             }
 313             User currentPageUser = LoginPage.getUser(req);
 314             if ( !p.isPermitted(currentPageUser)) {
 315                 if (hs.getAttribute("loggedin") == null) {
 316                     String request = req.getPathInfo();
 317                     request = request.split("\\?")[0];
 318                     hs.setAttribute(LoginPage.LOGIN_RETURNPATH, request);
 319                     resp.sendRedirect("/login");
 320                     return;
 321                 }
 322                 resp.sendError(403);
 323                 return;
 324             }
 325             if (p.beforeTemplate(req, resp)) {
 326                 return;
 327             }
 328             HashMap<String, Object> vars = new HashMap<String, Object>();
 329             Outputable content = new Outputable() {
 330
 331                 @Override
 332                 public void output(PrintWriter out, Language l, Map<String, Object> vars) {
 333                     try {
 334                         if (req.getMethod().equals("POST")) {
 335                             if (req.getQueryString() != null) {
 336                                 return;
 337                             }
 338                             p.doPost(req, resp);
 339                         } else {
 340                             p.doGet(req, resp);
 341                         }
 342                     } catch (CSRFException err) {
 343                         try {
 344                             resp.sendError(500, "CSRF invalid");
 345                         } catch (IOException e) {
 346                             e.printStackTrace();
 347                         }
 348                     } catch (IOException e) {
 349                         e.printStackTrace();
 350                     }
 351
 352                 }
 353             };
 354             Language lang = Page.getLanguage(req);
 355
 356             vars.put(Menu.USER_VALUE, currentPageUser);
 357             vars.put("menu", rootMenu);
 358             vars.put("title", lang.getTranslation(p.getTitle()));
 359             vars.put("static", getStaticTemplateVar(isSecure));
 360             vars.put("year", Calendar.getInstance().get(Calendar.YEAR));
 361             vars.put("content", content);
 362             if (currentPageUser != null) {
 363                 vars.put("loggedInAs", currentPageUser.getName().toString());
 364                 vars.put("loginMethod", lang.getTranslation((String) req.getSession().getAttribute(LOGIN_METHOD)));
 365             }
 366             resp.setContentType("text/html; charset=utf-8");
 367             baseTemplate.output(resp.getWriter(), lang, vars);
 368         } else {
 369             resp.sendError(404, "Page not found.");
 370         }
 371
 372     }
 373
 374     public static void addXSSHeaders(HttpServletResponse hsr, boolean doHttps) {
 375         hsr.addHeader("Access-Control-Allow-Origin", "https://" + ServerConstants.getWwwHostNamePortSecure() + " https://" + ServerConstants.getSecureHostNamePort());
 376         hsr.addHeader("Access-Control-Max-Age", "60");
 377         if (doHttps) {
 378             hsr.addHeader("Content-Security-Policy", httpsCSP);
 379         } else {
 380             hsr.addHeader("Content-Security-Policy", httpCSP);
 381         }
 382         hsr.addHeader("Strict-Transport-Security", "max-age=31536000");
 383
 384     }
 385
 386     private static String httpsCSP = genHttpsCSP();
 387
 388     private static String httpCSP = genHttpCSP();
 389
 390     private static String genHttpsCSP() {
 391         StringBuffer csp = new StringBuffer();
 392         csp.append("default-src 'none'");
 393         csp.append(";font-src https://" + ServerConstants.getStaticHostNamePortSecure());
 394         csp.append(";img-src https://" + ServerConstants.getStaticHostNamePortSecure());
 395         csp.append(";media-src 'none'; object-src 'none'");
 396         csp.append(";script-src https://" + ServerConstants.getStaticHostNamePortSecure());
 397         csp.append(";style-src https://" + ServerConstants.getStaticHostNamePortSecure());
 398         csp.append(";form-action https://" + ServerConstants.getSecureHostNamePort() + " https://" + ServerConstants.getWwwHostNamePortSecure());
 399         csp.append(";report-url https://api.cacert.org/security/csp/report");
 400         return csp.toString();
 401     }
 402
 403     private static String genHttpCSP() {
 404         StringBuffer csp = new StringBuffer();
 405         csp.append("default-src 'none'");
 406         csp.append(";font-src http://" + ServerConstants.getStaticHostNamePort());
 407         csp.append(";img-src http://" + ServerConstants.getStaticHostNamePort());
 408         csp.append(";media-src 'none'; object-src 'none'");
 409         csp.append(";script-src http://" + ServerConstants.getStaticHostNamePort());
 410         csp.append(";style-src http://" + ServerConstants.getStaticHostNamePort());
 411         csp.append(";form-action https://" + ServerConstants.getSecureHostNamePort() + " https://" + ServerConstants.getWwwHostNamePort());
 412         csp.append(";report-url http://api.cacert.org/security/csp/report");
 413         return csp.toString();
 414     }
 415
 416     /**
 417      * Requests Pinging of domains.
 418      *
 419      * @param toReping
 420      *            if not null, the {@link DomainPingConfiguration} to test, if
 421      *            null, just re-check if there is something to do.
 422      */
 423     public static void notifyPinger(DomainPingConfiguration toReping) {
 424         if (toReping != null) {
 425             instance.pinger.queue(toReping);
 426         }
 427         instance.pinger.interrupt();
 428     }
 429
 430 }