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