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
 251         page = pages.get(pathInfo.substring(0, idx) + "/*");
 252         if (page != null) {
 253             return page;
 254         }
 255
 256         int lIdx = pathInfo.lastIndexOf('/', idx);
 257         if (lIdx == -1) {
 258             return null;
 259         }
 260         page = pages.get(pathInfo.substring(0, lIdx) + "/" + pathInfo.substring(idx));
 261         return page;
 262
 263     }
 264
 265     private static String staticTemplateVarHttp = "http://" + ServerConstants.getStaticHostNamePort();
 266
 267     private static String staticTemplateVarHttps = "https://" + ServerConstants.getStaticHostNamePortSecure();
 268
 269     private static String getStaticTemplateVar(boolean https) {
 270         if (https) {
 271             return staticTemplateVarHttps;
 272         } else {
 273             return staticTemplateVarHttp;
 274         }
 275     }
 276
 277     @Override
 278     protected void service(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
 279         boolean isSecure = req.getServerPort() == ServerConstants.getSecurePort();
 280         addXSSHeaders(resp, isSecure);
 281         // Firefox only sends this, if it's a cross domain access; safari sends
 282         // it always
 283         String originHeader = req.getHeader("Origin");
 284         if (originHeader != null //
 285                 &&
 286                 !(originHeader.matches("^" + Pattern.quote("https://" + ServerConstants.getWwwHostNamePortSecure()) + "(/.*|)") || //
 287                         originHeader.matches("^" + Pattern.quote("http://" + ServerConstants.getWwwHostNamePort()) + "(/.*|)") || //
 288                 originHeader.matches("^" + Pattern.quote("https://" + ServerConstants.getSecureHostNamePort()) + "(/.*|)"))) {
 289             resp.setContentType("text/html; charset=utf-8");
 290             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>");
 291             return;
 292         }
 293         HttpSession hs = req.getSession();
 294         String clientSerial = (String) hs.getAttribute(CERT_SERIAL);
 295         if (clientSerial != null) {
 296             X509Certificate[] cert = (X509Certificate[]) req.getAttribute("javax.servlet.request.X509Certificate");
 297             if (cert == null || cert[0] == null//
 298                     || !cert[0].getSerialNumber().toString(16).toUpperCase().equals(clientSerial) //
 299                     || !cert[0].getIssuerDN().equals(hs.getAttribute(CERT_ISSUER))) {
 300                 hs.invalidate();
 301                 resp.sendError(403, "Certificate mismatch.");
 302                 return;
 303             }
 304
 305         }
 306         if (req.getParameter("lang") != null) {
 307             Locale l = Language.getLocaleFromString(req.getParameter("lang"));
 308             Language lu = Language.getInstance(l);
 309             req.getSession().setAttribute(Language.SESSION_ATTRIB_NAME, lu.getLocale());
 310         }
 311         final Page p = getPage(req.getPathInfo());
 312
 313         if (p != null) {
 314             if ( !isSecure && (p.needsLogin() || p instanceof LoginPage || p instanceof RegisterPage)) {
 315                 resp.sendRedirect("https://" + ServerConstants.getWwwHostNamePortSecure() + req.getPathInfo());
 316                 return;
 317             }
 318             User currentPageUser = LoginPage.getUser(req);
 319             if ( !p.isPermitted(currentPageUser)) {
 320                 if (hs.getAttribute("loggedin") == null) {
 321                     String request = req.getPathInfo();
 322                     request = request.split("\\?")[0];
 323                     hs.setAttribute(LoginPage.LOGIN_RETURNPATH, request);
 324                     resp.sendRedirect("/login");
 325                     return;
 326                 }
 327                 resp.sendError(403);
 328                 return;
 329             }
 330             if (p.beforeTemplate(req, resp)) {
 331                 return;
 332             }
 333             HashMap<String, Object> vars = new HashMap<String, Object>();
 334             Outputable content = new Outputable() {
 335
 336                 @Override
 337                 public void output(PrintWriter out, Language l, Map<String, Object> vars) {
 338                     try {
 339                         if (req.getMethod().equals("POST")) {
 340                             if (req.getQueryString() != null) {
 341                                 return;
 342                             }
 343                             p.doPost(req, resp);
 344                         } else {
 345                             p.doGet(req, resp);
 346                         }
 347                     } catch (CSRFException err) {
 348                         try {
 349                             resp.sendError(500, "CSRF invalid");
 350                         } catch (IOException e) {
 351                             e.printStackTrace();
 352                         }
 353                     } catch (IOException e) {
 354                         e.printStackTrace();
 355                     }
 356
 357                 }
 358             };
 359             Language lang = Page.getLanguage(req);
 360
 361             vars.put(Menu.USER_VALUE, currentPageUser);
 362             vars.put("menu", rootMenu);
 363             vars.put("title", lang.getTranslation(p.getTitle()));
 364             vars.put("static", getStaticTemplateVar(isSecure));
 365             vars.put("year", Calendar.getInstance().get(Calendar.YEAR));
 366             vars.put("content", content);
 367             if (currentPageUser != null) {
 368                 vars.put("loggedInAs", currentPageUser.getName().toString());
 369                 vars.put("loginMethod", lang.getTranslation((String) req.getSession().getAttribute(LOGIN_METHOD)));
 370             }
 371             resp.setContentType("text/html; charset=utf-8");
 372             baseTemplate.output(resp.getWriter(), lang, vars);
 373         } else {
 374             resp.sendError(404, "Page not found.");
 375         }
 376
 377     }
 378
 379     public static void addXSSHeaders(HttpServletResponse hsr, boolean doHttps) {
 380         hsr.addHeader("Access-Control-Allow-Origin", "https://" + ServerConstants.getWwwHostNamePortSecure() + " https://" + ServerConstants.getSecureHostNamePort());
 381         hsr.addHeader("Access-Control-Max-Age", "60");
 382         if (doHttps) {
 383             hsr.addHeader("Content-Security-Policy", httpsCSP);
 384         } else {
 385             hsr.addHeader("Content-Security-Policy", httpCSP);
 386         }
 387         hsr.addHeader("Strict-Transport-Security", "max-age=31536000");
 388
 389     }
 390
 391     private static String httpsCSP = genHttpsCSP();
 392
 393     private static String httpCSP = genHttpCSP();
 394
 395     private static String genHttpsCSP() {
 396         StringBuffer csp = new StringBuffer();
 397         csp.append("default-src 'none'");
 398         csp.append(";font-src https://" + ServerConstants.getStaticHostNamePortSecure());
 399         csp.append(";img-src https://" + ServerConstants.getStaticHostNamePortSecure());
 400         csp.append(";media-src 'none'; object-src 'none'");
 401         csp.append(";script-src https://" + ServerConstants.getStaticHostNamePortSecure());
 402         csp.append(";style-src https://" + ServerConstants.getStaticHostNamePortSecure());
 403         csp.append(";form-action https://" + ServerConstants.getSecureHostNamePort() + " https://" + ServerConstants.getWwwHostNamePortSecure());
 404         csp.append(";report-url https://api.cacert.org/security/csp/report");
 405         return csp.toString();
 406     }
 407
 408     private static String genHttpCSP() {
 409         StringBuffer csp = new StringBuffer();
 410         csp.append("default-src 'none'");
 411         csp.append(";font-src http://" + ServerConstants.getStaticHostNamePort());
 412         csp.append(";img-src http://" + ServerConstants.getStaticHostNamePort());
 413         csp.append(";media-src 'none'; object-src 'none'");
 414         csp.append(";script-src http://" + ServerConstants.getStaticHostNamePort());
 415         csp.append(";style-src http://" + ServerConstants.getStaticHostNamePort());
 416         csp.append(";form-action https://" + ServerConstants.getSecureHostNamePort() + " https://" + ServerConstants.getWwwHostNamePort());
 417         csp.append(";report-url http://api.cacert.org/security/csp/report");
 418         return csp.toString();
 419     }
 420
 421     /**
 422      * Requests Pinging of domains.
 423      *
 424      * @param toReping
 425      *            if not null, the {@link DomainPingConfiguration} to test, if
 426      *            null, just re-check if there is something to do.
 427      */
 428     public static void notifyPinger(DomainPingConfiguration toReping) {
 429         if (toReping != null) {
 430             instance.pinger.queue(toReping);
 431         }
 432         instance.pinger.interrupt();
 433     }
 434
 435 }