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.CACertificate;
  25 import org.cacert.gigi.dbObjects.CertificateProfile;
  26 import org.cacert.gigi.dbObjects.DomainPingConfiguration;
  27 import org.cacert.gigi.localisation.Language;
  28 import org.cacert.gigi.output.Menu;
  29 import org.cacert.gigi.output.PageMenuItem;
  30 import org.cacert.gigi.output.SimpleMenuItem;
  31 import org.cacert.gigi.output.template.Form.CSRFException;
  32 import org.cacert.gigi.output.template.Outputable;
  33 import org.cacert.gigi.output.template.Template;
  34 import org.cacert.gigi.pages.HandlesMixedRequest;
  35 import org.cacert.gigi.pages.LoginPage;
  36 import org.cacert.gigi.pages.LogoutPage;
  37 import org.cacert.gigi.pages.MainPage;
  38 import org.cacert.gigi.pages.Page;
  39 import org.cacert.gigi.pages.PolicyIndex;
  40 import org.cacert.gigi.pages.RootCertPage;
  41 import org.cacert.gigi.pages.StaticPage;
  42 import org.cacert.gigi.pages.TestSecure;
  43 import org.cacert.gigi.pages.Verify;
  44 import org.cacert.gigi.pages.account.ChangePasswordPage;
  45 import org.cacert.gigi.pages.account.MyDetails;
  46 import org.cacert.gigi.pages.account.UserHistory;
  47 import org.cacert.gigi.pages.account.UserTrainings;
  48 import org.cacert.gigi.pages.account.certs.CertificateAdd;
  49 import org.cacert.gigi.pages.account.certs.Certificates;
  50 import org.cacert.gigi.pages.account.domain.DomainOverview;
  51 import org.cacert.gigi.pages.account.mail.MailOverview;
  52 import org.cacert.gigi.pages.admin.TTPAdminPage;
  53 import org.cacert.gigi.pages.admin.support.FindDomainPage;
  54 import org.cacert.gigi.pages.admin.support.FindUserPage;
  55 import org.cacert.gigi.pages.admin.support.SupportEnterTicketPage;
  56 import org.cacert.gigi.pages.admin.support.SupportUserDetailsPage;
  57 import org.cacert.gigi.pages.error.AccessDenied;
  58 import org.cacert.gigi.pages.error.PageNotFound;
  59 import org.cacert.gigi.pages.main.RegisterPage;
  60 import org.cacert.gigi.pages.orga.CreateOrgPage;
  61 import org.cacert.gigi.pages.orga.ViewOrgPage;
  62 import org.cacert.gigi.pages.wot.AssurePage;
  63 import org.cacert.gigi.pages.wot.MyPoints;
  64 import org.cacert.gigi.pages.wot.RequestTTPPage;
  65 import org.cacert.gigi.ping.PingerDaemon;
  66 import org.cacert.gigi.util.AuthorizationContext;
  67 import org.cacert.gigi.util.ServerConstants;
  68
  69 public class Gigi extends HttpServlet {
  70
  71     private class MenuBuilder {
  72
  73         private LinkedList<Menu> categories = new LinkedList<Menu>();
  74
  75         private HashMap<String, Page> pages = new HashMap<String, Page>();
  76
  77         private Menu rootMenu;
  78
  79         public MenuBuilder() {}
  80
  81         private void putPage(String path, Page p, String category) {
  82             pages.put(path, p);
  83             if (category == null) {
  84                 return;
  85             }
  86             Menu m = getMenu(category);
  87             m.addItem(new PageMenuItem(p, path.replaceFirst("/?\\*$", "")));
  88
  89         }
  90
  91         private Menu getMenu(String category) {
  92             Menu m = null;
  93             for (Menu menu : categories) {
  94                 if (menu.getMenuName().equals(category)) {
  95                     m = menu;
  96                     break;
  97                 }
  98             }
  99             if (m == null) {
 100                 m = new Menu(category);
 101                 categories.add(m);
 102             }
 103             return m;
 104         }
 105
 106         public Menu generateMenu() throws ServletException {
 107             putPage("/denied", new AccessDenied(), null);
 108             putPage("/error", new PageNotFound(), null);
 109             putPage("/login", new LoginPage("Password Login"), null);
 110             getMenu("CAcert.org").addItem(new SimpleMenuItem("https://" + ServerConstants.getWwwHostNamePort() + "/login", "Password Login") {
 111
 112                 @Override
 113                 public boolean isPermitted(AuthorizationContext ac) {
 114                     return ac == null;
 115                 }
 116             });
 117             getMenu("CAcert.org").addItem(new SimpleMenuItem("https://" + ServerConstants.getSecureHostNamePort() + "/login", "Certificate Login") {
 118
 119                 @Override
 120                 public boolean isPermitted(AuthorizationContext ac) {
 121                     return ac == null;
 122                 }
 123             });
 124             putPage("/", new MainPage("CAcert - Home"), null);
 125             putPage("/roots", new RootCertPage(truststore), "CAcert.org");
 126             putPage(ChangePasswordPage.PATH, new ChangePasswordPage(), "My Account");
 127             putPage(LogoutPage.PATH, new LogoutPage("Logout"), "My Account");
 128             putPage("/secure", new TestSecure(), null);
 129             putPage(Verify.PATH, new Verify(), null);
 130             putPage(AssurePage.PATH + "/*", new AssurePage(), "Web of Trust");
 131             putPage(Certificates.PATH + "/*", new Certificates(), "Certificates");
 132             putPage(MyDetails.PATH, new MyDetails(), "My Account");
 133             putPage(RegisterPage.PATH, new RegisterPage(), "CAcert.org");
 134             putPage(CertificateAdd.PATH, new CertificateAdd(), "Certificates");
 135             putPage(MailOverview.DEFAULT_PATH, new MailOverview("My email addresses"), "Certificates");
 136             putPage(DomainOverview.PATH + "*", new DomainOverview("Domains"), "Certificates");
 137             putPage(MyPoints.PATH, new MyPoints("My Points"), "Web of Trust");
 138             putPage(RequestTTPPage.PATH, new RequestTTPPage(), "Web of Trust");
 139             putPage(TTPAdminPage.PATH + "/*", new TTPAdminPage(), "Admin");
 140             putPage(CreateOrgPage.DEFAULT_PATH, new CreateOrgPage(), "Organisation Admin");
 141             putPage(ViewOrgPage.DEFAULT_PATH + "/*", new ViewOrgPage(), "Organisation Admin");
 142             putPage(FindUserPage.PATH, new FindUserPage("Find User"), "System Admin");
 143             putPage(FindDomainPage.PATH, new FindDomainPage("Find Domain"), "System Admin");
 144             putPage(SupportEnterTicketPage.PATH, new SupportEnterTicketPage(), "System Admin");
 145             putPage(SupportUserDetailsPage.PATH + "*", new SupportUserDetailsPage("Support: User Details"), null);
 146             putPage(UserHistory.PATH, new UserHistory(false), "My Account");
 147             putPage(UserHistory.SUPPORT_PATH, new UserHistory(true), null);
 148             putPage(UserTrainings.PATH, new UserTrainings(false), "My Account");
 149             putPage(UserTrainings.SUPPORT_PATH, new UserTrainings(true), null);
 150             if (testing) {
 151                 try {
 152                     Class<?> manager = Class.forName("org.cacert.gigi.pages.Manager");
 153                     Page p = (Page) manager.getMethod("getInstance").invoke(null);
 154                     String pa = (String) manager.getField("PATH").get(null);
 155                     putPage(pa + "/*", p, "Gigi test server");
 156                 } catch (ReflectiveOperationException e) {
 157                     e.printStackTrace();
 158                 }
 159             }
 160
 161             try {
 162                 putPage("/wot/rules", new StaticPage("Web of Trust Rules", AssurePage.class.getResourceAsStream("Rules.templ")), "Web of Trust");
 163             } catch (UnsupportedEncodingException e) {
 164                 throw new ServletException(e);
 165             }
 166             baseTemplate = new Template(Gigi.class.getResource("Gigi.templ"));
 167             rootMenu = new Menu("Main");
 168             Menu about = new Menu("About CAcert.org");
 169             categories.add(about);
 170
 171             about.addItem(new SimpleMenuItem("//blog.cacert.org/", "CAcert News"));
 172             about.addItem(new SimpleMenuItem("//wiki.cacert.org/", "Wiki Documentation"));
 173             putPage(PolicyIndex.DEFAULT_PATH, new PolicyIndex(), "About CAcert.org");
 174             about.addItem(new SimpleMenuItem("//wiki.cacert.org/FAQ/Privileges", "Point System"));
 175             about.addItem(new SimpleMenuItem("//bugs.cacert.org/", "Bug Database"));
 176             about.addItem(new SimpleMenuItem("//wiki.cacert.org/Board", "CAcert Board"));
 177             about.addItem(new SimpleMenuItem("//lists.cacert.org/wws", "Mailing Lists"));
 178             about.addItem(new SimpleMenuItem("//blog.CAcert.org/feed", "RSS News Feed"));
 179
 180             Menu languages = new Menu("Translations");
 181             for (Locale l : Language.getSupportedLocales()) {
 182                 languages.addItem(new SimpleMenuItem("?lang=" + l.toString(), l.getDisplayName(l)));
 183             }
 184             categories.add(languages);
 185             for (Menu menu : categories) {
 186                 menu.prepare();
 187                 rootMenu.addItem(menu);
 188             }
 189
 190             rootMenu.prepare();
 191             return rootMenu;
 192         }
 193
 194         public Map<String, Page> getPages() {
 195             return Collections.unmodifiableMap(pages);
 196         }
 197     }
 198
 199     public static final String LOGGEDIN = "loggedin";
 200
 201     public static final String CERT_SERIAL = "org.cacert.gigi.serial";
 202
 203     public static final String CERT_ISSUER = "org.cacert.gigi.issuer";
 204
 205     public static final String AUTH_CONTEXT = "auth";
 206
 207     public static final String LOGIN_METHOD = "org.cacert.gigi.loginMethod";
 208
 209     private static final long serialVersionUID = -6386785421902852904L;
 210
 211     private static Gigi instance;
 212
 213     private Template baseTemplate;
 214
 215     private PingerDaemon pinger;
 216
 217     private KeyStore truststore;
 218
 219     private boolean testing;
 220
 221     private Menu rootMenu;
 222
 223     private Map<String, Page> pages;
 224
 225     private boolean firstInstanceInited = false;
 226
 227     public Gigi(Properties conf, KeyStore truststore) {
 228         synchronized (Gigi.class) {
 229             if (instance != null) {
 230                 throw new IllegalStateException("Multiple Gigi instances!");
 231             }
 232             testing = conf.getProperty("testing") != null;
 233             instance = this;
 234             DatabaseConnection.init(conf);
 235             this.truststore = truststore;
 236             pinger = new PingerDaemon(truststore);
 237             pinger.start();
 238         }
 239     }
 240
 241     @Override
 242     public synchronized void init() throws ServletException {
 243         if (firstInstanceInited) {
 244             super.init();
 245             return;
 246         }
 247         // ensure those static initializers are finished
 248         CACertificate.getById(1);
 249         CertificateProfile.getById(1);
 250
 251         MenuBuilder mb = new MenuBuilder();
 252         rootMenu = mb.generateMenu();
 253         pages = mb.getPages();
 254
 255         firstInstanceInited = true;
 256         super.init();
 257     }
 258
 259     private Page getPage(String pathInfo) {
 260         if (pathInfo.endsWith("/") && !pathInfo.equals("/")) {
 261             pathInfo = pathInfo.substring(0, pathInfo.length() - 1);
 262         }
 263         Page page = pages.get(pathInfo);
 264         if (page != null) {
 265             return page;
 266         }
 267         page = pages.get(pathInfo + "/*");
 268         if (page != null) {
 269             return page;
 270         }
 271         int idx = pathInfo.lastIndexOf('/');
 272         if (idx == -1 || idx == 0) {
 273             return null;
 274         }
 275
 276         page = pages.get(pathInfo.substring(0, idx) + "/*");
 277         if (page != null) {
 278             return page;
 279         }
 280         int lIdx = pathInfo.lastIndexOf('/', idx - 1);
 281         if (lIdx == -1) {
 282             return null;
 283         }
 284         String lastResort = pathInfo.substring(0, lIdx) + "/*" + pathInfo.substring(idx);
 285         page = pages.get(lastResort);
 286         return page;
 287
 288     }
 289
 290     private static String staticTemplateVarHttp = "http://" + ServerConstants.getStaticHostNamePort();
 291
 292     private static String staticTemplateVarHttps = "https://" + ServerConstants.getStaticHostNamePortSecure();
 293
 294     private static String getStaticTemplateVar(boolean https) {
 295         if (https) {
 296             return staticTemplateVarHttps;
 297         } else {
 298             return staticTemplateVarHttp;
 299         }
 300     }
 301
 302     @Override
 303     protected void service(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
 304         boolean isSecure = req.isSecure();
 305         addXSSHeaders(resp, isSecure);
 306         // Firefox only sends this, if it's a cross domain access; safari sends
 307         // it always
 308         String originHeader = req.getHeader("Origin");
 309         if (originHeader != null //
 310                 &&
 311                 !(originHeader.matches("^" + Pattern.quote("https://" + ServerConstants.getWwwHostNamePortSecure()) + "(/.*|)") || //
 312                         originHeader.matches("^" + Pattern.quote("http://" + ServerConstants.getWwwHostNamePort()) + "(/.*|)") || //
 313                 originHeader.matches("^" + Pattern.quote("https://" + ServerConstants.getSecureHostNamePort()) + "(/.*|)"))) {
 314             resp.setContentType("text/html; charset=utf-8");
 315             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>");
 316             return;
 317         }
 318         HttpSession hs = req.getSession();
 319         String clientSerial = (String) hs.getAttribute(CERT_SERIAL);
 320         if (clientSerial != null) {
 321             X509Certificate[] cert = (X509Certificate[]) req.getAttribute("javax.servlet.request.X509Certificate");
 322             if (cert == null || cert[0] == null//
 323                     || !cert[0].getSerialNumber().toString(16).toUpperCase().equals(clientSerial) //
 324                     || !cert[0].getIssuerDN().equals(hs.getAttribute(CERT_ISSUER))) {
 325                 hs.invalidate();
 326                 resp.sendError(403, "Certificate mismatch.");
 327                 return;
 328             }
 329
 330         }
 331         if (req.getParameter("lang") != null) {
 332             Locale l = Language.getLocaleFromString(req.getParameter("lang"));
 333             Language lu = Language.getInstance(l);
 334             req.getSession().setAttribute(Language.SESSION_ATTRIB_NAME, lu.getLocale());
 335         }
 336         final Page p = getPage(req.getPathInfo());
 337
 338         if (p != null) {
 339             if ( !isSecure && (p.needsLogin() || p instanceof LoginPage || p instanceof RegisterPage)) {
 340                 resp.sendRedirect("https://" + ServerConstants.getWwwHostNamePortSecure() + req.getPathInfo());
 341                 return;
 342             }
 343             AuthorizationContext currentAuthContext = LoginPage.getAuthorizationContext(req);
 344             if ( !p.isPermitted(currentAuthContext)) {
 345                 if (hs.getAttribute("loggedin") == null) {
 346                     String request = req.getPathInfo();
 347                     request = request.split("\\?")[0];
 348                     hs.setAttribute(LoginPage.LOGIN_RETURNPATH, request);
 349                     resp.sendRedirect("/login");
 350                     return;
 351                 }
 352                 resp.sendError(403);
 353                 return;
 354             }
 355             if (p.beforeTemplate(req, resp)) {
 356                 return;
 357             }
 358             HashMap<String, Object> vars = new HashMap<String, Object>();
 359             Outputable content = new Outputable() {
 360
 361                 @Override
 362                 public void output(PrintWriter out, Language l, Map<String, Object> vars) {
 363                     try {
 364                         if (req.getMethod().equals("POST")) {
 365                             if (req.getQueryString() != null && !(p instanceof HandlesMixedRequest)) {
 366                                 return;
 367                             }
 368                             p.doPost(req, resp);
 369                         } else {
 370                             p.doGet(req, resp);
 371                         }
 372                     } catch (CSRFException err) {
 373                         try {
 374                             resp.sendError(500, "CSRF invalid");
 375                         } catch (IOException e) {
 376                             e.printStackTrace();
 377                         }
 378                     } catch (IOException e) {
 379                         e.printStackTrace();
 380                     }
 381
 382                 }
 383             };
 384             Language lang = Page.getLanguage(req);
 385
 386             vars.put(Menu.AUTH_VALUE, currentAuthContext);
 387             vars.put("menu", rootMenu);
 388             vars.put("title", lang.getTranslation(p.getTitle()));
 389             vars.put("static", getStaticTemplateVar(isSecure));
 390             vars.put("year", Calendar.getInstance().get(Calendar.YEAR));
 391             vars.put("content", content);
 392             if (currentAuthContext != null) {
 393                 // TODO maybe move this information into the AuthContext object
 394                 vars.put("loginMethod", lang.getTranslation((String) req.getSession().getAttribute(LOGIN_METHOD)));
 395                 vars.put("authContext", currentAuthContext);
 396
 397             }
 398             resp.setContentType("text/html; charset=utf-8");
 399             baseTemplate.output(resp.getWriter(), lang, vars);
 400         } else {
 401             resp.sendError(404, "Page not found.");
 402         }
 403
 404     }
 405
 406     public static void addXSSHeaders(HttpServletResponse hsr, boolean doHttps) {
 407         hsr.addHeader("Access-Control-Allow-Origin", "https://" + ServerConstants.getWwwHostNamePortSecure() + " https://" + ServerConstants.getSecureHostNamePort());
 408         hsr.addHeader("Access-Control-Max-Age", "60");
 409         if (doHttps) {
 410             hsr.addHeader("Content-Security-Policy", httpsCSP);
 411         } else {
 412             hsr.addHeader("Content-Security-Policy", httpCSP);
 413         }
 414         hsr.addHeader("Strict-Transport-Security", "max-age=31536000");
 415
 416     }
 417
 418     private static String httpsCSP = genHttpsCSP();
 419
 420     private static String httpCSP = genHttpCSP();
 421
 422     private static String genHttpsCSP() {
 423         StringBuffer csp = new StringBuffer();
 424         csp.append("default-src 'none'");
 425         csp.append(";font-src https://" + ServerConstants.getStaticHostNamePortSecure());
 426         csp.append(";img-src https://" + ServerConstants.getStaticHostNamePortSecure());
 427         csp.append(";media-src 'none'; object-src 'none'");
 428         csp.append(";script-src https://" + ServerConstants.getStaticHostNamePortSecure());
 429         csp.append(";style-src https://" + ServerConstants.getStaticHostNamePortSecure());
 430         csp.append(";form-action https://" + ServerConstants.getSecureHostNamePort() + " https://" + ServerConstants.getWwwHostNamePortSecure());
 431         csp.append(";report-url https://api.cacert.org/security/csp/report");
 432         return csp.toString();
 433     }
 434
 435     private static String genHttpCSP() {
 436         StringBuffer csp = new StringBuffer();
 437         csp.append("default-src 'none'");
 438         csp.append(";font-src http://" + ServerConstants.getStaticHostNamePort());
 439         csp.append(";img-src http://" + ServerConstants.getStaticHostNamePort());
 440         csp.append(";media-src 'none'; object-src 'none'");
 441         csp.append(";script-src http://" + ServerConstants.getStaticHostNamePort());
 442         csp.append(";style-src http://" + ServerConstants.getStaticHostNamePort());
 443         csp.append(";form-action https://" + ServerConstants.getSecureHostNamePort() + " https://" + ServerConstants.getWwwHostNamePort());
 444         csp.append(";report-url http://api.cacert.org/security/csp/report");
 445         return csp.toString();
 446     }
 447
 448     /**
 449      * Requests Pinging of domains.
 450      *
 451      * @param toReping
 452      *            if not null, the {@link DomainPingConfiguration} to test, if
 453      *            null, just re-check if there is something to do.
 454      */
 455     public static void notifyPinger(DomainPingConfiguration toReping) {
 456         if (toReping != null) {
 457             instance.pinger.queue(toReping);
 458         }
 459         instance.pinger.interrupt();
 460     }
 461
 462 }