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