1 package org.cacert.gigi.pages;
3 import static org.cacert.gigi.Gigi.*;
5 import java.io.IOException;
6 import java.io.PrintWriter;
7 import java.security.cert.X509Certificate;
8 import java.util.HashMap;
11 import javax.servlet.http.HttpServletRequest;
12 import javax.servlet.http.HttpServletResponse;
13 import javax.servlet.http.HttpSession;
15 import org.cacert.gigi.GigiApiException;
16 import org.cacert.gigi.database.DatabaseConnection;
17 import org.cacert.gigi.database.GigiPreparedStatement;
18 import org.cacert.gigi.database.GigiResultSet;
19 import org.cacert.gigi.dbObjects.Group;
20 import org.cacert.gigi.dbObjects.User;
21 import org.cacert.gigi.localisation.Language;
22 import org.cacert.gigi.output.template.Form;
23 import org.cacert.gigi.util.AuthorizationContext;
24 import org.cacert.gigi.util.PasswordHash;
26 public class LoginPage extends Page {
28 public class LoginForm extends Form {
30 public LoginForm(HttpServletRequest hsr) {
35 public boolean submit(PrintWriter out, HttpServletRequest req) throws GigiApiException {
41 protected void outputContent(PrintWriter out, Language l, Map<String, Object> vars) {
42 getDefaultTemplate().output(out, l, vars);
47 public static final String LOGIN_RETURNPATH = "login-returnpath";
49 public LoginPage(String title) {
54 public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
55 new LoginForm(req).output(resp.getWriter(), getLanguage(req), new HashMap<String, Object>());
59 public boolean beforeTemplate(HttpServletRequest req, HttpServletResponse resp) throws IOException {
60 String redir = (String) req.getSession().getAttribute(LOGIN_RETURNPATH);
61 if (req.getSession().getAttribute("loggedin") == null) {
62 X509Certificate cert = getCertificateFromRequest(req);
64 tryAuthWithCertificate(req, cert);
66 if (req.getMethod().equals("POST")) {
68 Form.getForm(req, LoginForm.class).submit(resp.getWriter(), req);
69 } catch (GigiApiException e) {
74 if (req.getSession().getAttribute("loggedin") != null) {
77 if ( !s.startsWith("/")) {
82 resp.sendRedirect("/");
90 public boolean needsLogin() {
94 private void tryAuthWithUnpw(HttpServletRequest req) {
95 String un = req.getParameter("username");
96 String pw = req.getParameter("password");
97 GigiPreparedStatement ps = DatabaseConnection.getInstance().prepare("SELECT `password`, `id` FROM `users` WHERE `email`=? AND verified='1'");
99 GigiResultSet rs = ps.executeQuery();
101 String dbHash = rs.getString(1);
102 String hash = PasswordHash.verifyHash(pw, dbHash);
104 if ( !hash.equals(dbHash)) {
105 GigiPreparedStatement gps = DatabaseConnection.getInstance().prepare("UPDATE `users` SET `password`=? WHERE `email`=?");
106 gps.setString(1, hash);
107 gps.setString(2, un);
110 loginSession(req, User.getById(rs.getInt(2)));
111 req.getSession().setAttribute(LOGIN_METHOD, "Password");
117 public static User getUser(HttpServletRequest req) {
118 AuthorizationContext ac = getAuthorizationContext(req);
122 return ac.getActor();
125 public static AuthorizationContext getAuthorizationContext(HttpServletRequest req) {
126 return ((AuthorizationContext) req.getSession().getAttribute(AUTH_CONTEXT));
129 private void tryAuthWithCertificate(HttpServletRequest req, X509Certificate x509Certificate) {
130 String serial = extractSerialFormCert(x509Certificate);
131 User user = fetchUserBySerial(serial);
135 loginSession(req, user);
136 req.getSession().setAttribute(CERT_SERIAL, serial);
137 req.getSession().setAttribute(CERT_ISSUER, x509Certificate.getIssuerDN());
138 req.getSession().setAttribute(LOGIN_METHOD, "Certificate");
141 public static String extractSerialFormCert(X509Certificate x509Certificate) {
142 return x509Certificate.getSerialNumber().toString(16).toUpperCase();
145 public static User fetchUserBySerial(String serial) {
146 if ( !serial.matches("[A-Fa-f0-9]+")) {
147 throw new Error("serial malformed.");
149 GigiPreparedStatement ps = DatabaseConnection.getInstance().prepare("SELECT `memid` FROM `certs` WHERE `serial`=? AND `disablelogin`='0' AND `revoked` is NULL");
150 ps.setString(1, serial.toLowerCase());
151 GigiResultSet rs = ps.executeQuery();
154 user = User.getById(rs.getInt(1));
156 System.out.println("User with serial " + serial + " not found.");
162 public static X509Certificate getCertificateFromRequest(HttpServletRequest req) {
163 X509Certificate[] cert = (X509Certificate[]) req.getAttribute("javax.servlet.request.X509Certificate");
164 X509Certificate uc = null;
165 if (cert != null && cert[0] != null) {
171 private static final Group LOGIN_BLOCKED = Group.getByString("blockedlogin");
173 private void loginSession(HttpServletRequest req, User user) {
174 if (user.isInGroup(LOGIN_BLOCKED)) {
177 req.getSession().invalidate();
178 HttpSession hs = req.getSession();
179 hs.setAttribute(LOGGEDIN, true);
180 hs.setAttribute(Language.SESSION_ATTRIB_NAME, user.getPreferredLocale());
181 hs.setAttribute(AUTH_CONTEXT, new AuthorizationContext(user, user));
185 public boolean isPermitted(AuthorizationContext ac) {