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