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.util.Calendar;
   6 import java.util.HashMap;
   7 import java.util.LinkedList;
   8 import java.util.Map;
   9 import java.util.Properties;
  10
  11 import javax.servlet.ServletException;
  12 import javax.servlet.http.HttpServlet;
  13 import javax.servlet.http.HttpServletRequest;
  14 import javax.servlet.http.HttpServletResponse;
  15 import javax.servlet.http.HttpSession;
  16
  17 import org.cacert.gigi.database.DatabaseConnection;
  18 import org.cacert.gigi.localisation.Language;
  19 import org.cacert.gigi.output.Form.CSRFException;
  20 import org.cacert.gigi.output.Menu;
  21 import org.cacert.gigi.output.Outputable;
  22 import org.cacert.gigi.output.PageMenuItem;
  23 import org.cacert.gigi.output.template.Template;
  24 import org.cacert.gigi.pages.LoginPage;
  25 import org.cacert.gigi.pages.MainPage;
  26 import org.cacert.gigi.pages.Page;
  27 import org.cacert.gigi.pages.StaticPage;
  28 import org.cacert.gigi.pages.TestSecure;
  29 import org.cacert.gigi.pages.Verify;
  30 import org.cacert.gigi.pages.account.CertificateAdd;
  31 import org.cacert.gigi.pages.account.Certificates;
  32 import org.cacert.gigi.pages.account.ChangePasswordPage;
  33 import org.cacert.gigi.pages.account.DomainOverview;
  34 import org.cacert.gigi.pages.account.MailOverview;
  35 import org.cacert.gigi.pages.account.MyDetails;
  36 import org.cacert.gigi.pages.error.PageNotFound;
  37 import org.cacert.gigi.pages.main.RegisterPage;
  38 import org.cacert.gigi.pages.wot.AssurePage;
  39 import org.cacert.gigi.pages.wot.MyPoints;
  40 import org.cacert.gigi.util.ServerConstants;
  41
  42 public class Gigi extends HttpServlet {
  43
  44     private boolean firstInstanceInited = false;
  45
  46     public static final String LOGGEDIN = "loggedin";
  47
  48     public static final String USER = "user";
  49
  50     private static final long serialVersionUID = -6386785421902852904L;
  51
  52     private Template baseTemplate;
  53
  54     private LinkedList<Menu> categories = new LinkedList<Menu>();
  55
  56     private HashMap<String, Page> pages = new HashMap<String, Page>();
  57
  58     private HashMap<Page, String> reveresePages = new HashMap<Page, String>();
  59
  60     private Menu rootMenu;
  61
  62     private static Gigi instance;
  63
  64     public Gigi(Properties conf) {
  65         if (instance != null) {
  66             new IllegalStateException("Multiple Gigi instances!");
  67         }
  68         instance = this;
  69         DatabaseConnection.init(conf);
  70     }
  71
  72     @Override
  73     public void init() throws ServletException {
  74         if ( !firstInstanceInited) {
  75             putPage("/error", new PageNotFound(), null);
  76             putPage("/login", new LoginPage("CACert - Login"), "Join CAcert.org");
  77             putPage("/", new MainPage("CACert - Home"), null);
  78             putPage(ChangePasswordPage.PATH, new ChangePasswordPage(), "My Account");
  79             putPage("/secure", new TestSecure(), null);
  80             putPage(Verify.PATH, new Verify(), null);
  81             putPage(AssurePage.PATH + "/*", new AssurePage(), "CAcert Web of Trust");
  82             putPage(Certificates.PATH + "/*", new Certificates(), "Certificates");
  83             putPage(MyDetails.PATH, new MyDetails(), "My Account");
  84             putPage(RegisterPage.PATH, new RegisterPage(), "Join CAcert.org");
  85             putPage(CertificateAdd.PATH, new CertificateAdd(), "Certificates");
  86             putPage(MailOverview.DEFAULT_PATH, new MailOverview("My email addresses"), "Certificates");
  87             putPage(DomainOverview.PATH, new DomainOverview("Domains"), "Certificates");
  88             putPage(MyPoints.PATH, new MyPoints("My Points"), "CAcert Web of Trust");
  89             putPage("/wot/rules", new StaticPage("CAcert Web of Trust Rules", AssurePage.class.getResourceAsStream("Rules.templ")), "CAcert Web of Trust");
  90             baseTemplate = new Template(Gigi.class.getResource("Gigi.templ"));
  91             rootMenu = new Menu("Main");
  92             for (Menu menu : categories) {
  93                 menu.prepare();
  94                 rootMenu.addItem(menu);
  95             }
  96             rootMenu.prepare();
  97             firstInstanceInited = true;
  98         }
  99         super.init();
 100     }
 101
 102     private void putPage(String path, Page p, String category) {
 103         pages.put(path, p);
 104         reveresePages.put(p, path);
 105         if (category == null) {
 106             return;
 107         }
 108         Menu m = null;
 109         for (Menu menu : categories) {
 110             if (menu.getMenuName().equals(category)) {
 111                 m = menu;
 112                 break;
 113             }
 114         }
 115         if (m == null) {
 116             m = new Menu(category);
 117             categories.add(m);
 118         }
 119         m.addItem(new PageMenuItem(p));
 120
 121     }
 122
 123     @Override
 124     protected void service(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
 125         addXSSHeaders(resp);
 126         // if (req.getHeader("Origin") != null) {
 127         // resp.getWriter().println("No cross domain access allowed.");
 128         // return;
 129         // }
 130         HttpSession hs = req.getSession();
 131         if (req.getPathInfo() != null && req.getPathInfo().equals("/logout")) {
 132             if (hs != null) {
 133                 hs.setAttribute(LOGGEDIN, null);
 134                 hs.invalidate();
 135             }
 136             resp.sendRedirect("/");
 137             return;
 138         }
 139
 140         final Page p = getPage(req.getPathInfo());
 141         if (p != null) {
 142
 143             User currentPageUser = LoginPage.getUser(req);
 144             if ( !p.isPermitted(currentPageUser) && hs.getAttribute("loggedin") == null) {
 145                 String request = req.getPathInfo();
 146                 request = request.split("\\?")[0];
 147                 hs.setAttribute(LoginPage.LOGIN_RETURNPATH, request);
 148                 resp.sendRedirect("/login");
 149                 return;
 150             }
 151             if (p.beforeTemplate(req, resp)) {
 152                 return;
 153             }
 154             HashMap<String, Object> vars = new HashMap<String, Object>();
 155
 156             resp.setContentType("text/html; charset=utf-8");
 157             Outputable content = new Outputable() {
 158
 159                 @Override
 160                 public void output(PrintWriter out, Language l, Map<String, Object> vars) {
 161                     try {
 162                         if (req.getMethod().equals("POST")) {
 163                             if (req.getQueryString() != null) {
 164                                 return;
 165                             }
 166                             p.doPost(req, resp);
 167                         } else {
 168                             p.doGet(req, resp);
 169                         }
 170                     } catch (CSRFException err) {
 171                         try {
 172                             resp.sendError(500, "CSRF invalid");
 173                         } catch (IOException e) {
 174                             e.printStackTrace();
 175                         }
 176                     } catch (IOException e) {
 177                         e.printStackTrace();
 178                     }
 179
 180                 }
 181             };
 182             vars.put(Menu.USER_VALUE, currentPageUser);
 183             vars.put("menu", rootMenu);
 184             vars.put("title", Page.getLanguage(req).getTranslation(p.getTitle()));
 185             vars.put("static", ServerConstants.getStaticHostNamePort());
 186             vars.put("year", Calendar.getInstance().get(Calendar.YEAR));
 187             vars.put("content", content);
 188             baseTemplate.output(resp.getWriter(), Page.getLanguage(req), vars);
 189         } else {
 190             resp.sendError(404, "Page not found.");
 191         }
 192
 193     }
 194
 195     private Page getPage(String pathInfo) {
 196         if (pathInfo.endsWith("/") && !pathInfo.equals("/")) {
 197             pathInfo = pathInfo.substring(0, pathInfo.length() - 1);
 198         }
 199         Page page = pages.get(pathInfo);
 200         if (page != null) {
 201             return page;
 202         }
 203         page = pages.get(pathInfo + "/*");
 204         if (page != null) {
 205             return page;
 206         }
 207         int idx = pathInfo.lastIndexOf('/');
 208         pathInfo = pathInfo.substring(0, idx);
 209
 210         page = pages.get(pathInfo + "/*");
 211         if (page != null) {
 212             return page;
 213         }
 214         return null;
 215
 216     }
 217
 218     public static void addXSSHeaders(HttpServletResponse hsr) {
 219         hsr.addHeader("Access-Control-Allow-Origin", "https://" + ServerConstants.getWwwHostNamePort() + " https://" + ServerConstants.getSecureHostNamePort());
 220         hsr.addHeader("Access-Control-Max-Age", "60");
 221
 222         hsr.addHeader("Content-Security-Policy", getDefaultCSP());
 223         hsr.addHeader("Strict-Transport-Security", "max-age=31536000");
 224
 225     }
 226
 227     private static String defaultCSP = null;
 228
 229     private static String getDefaultCSP() {
 230         if (defaultCSP == null) {
 231             StringBuffer csp = new StringBuffer();
 232             csp.append("default-src 'none';");
 233             csp.append("font-src https://" + ServerConstants.getStaticHostNamePort());
 234             csp.append(";img-src https://" + ServerConstants.getStaticHostNamePort());
 235             csp.append(";media-src 'none'; object-src 'none';");
 236             csp.append("script-src https://" + ServerConstants.getStaticHostNamePort());
 237             csp.append(";style-src https://" + ServerConstants.getStaticHostNamePort());
 238             csp.append(";form-action https://" + ServerConstants.getSecureHostNamePort() + " https://" + ServerConstants.getWwwHostNamePort());
 239             csp.append("report-url https://api.cacert.org/security/csp/report");
 240             defaultCSP = csp.toString();
 241         }
 242         return defaultCSP;
 243     }
 244
 245     public static String getPathByPage(Page p) {
 246         return instance.reveresePages.get(p).replaceFirst("/?\\*$", "");
 247     }
 248
 249 }