| // Copyright (C) 2009 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.gerrit.httpd.auth.become; |
| |
| import static com.google.gerrit.server.account.externalids.ExternalId.SCHEME_USERNAME; |
| import static com.google.gerrit.server.account.externalids.ExternalId.SCHEME_UUID; |
| |
| import com.google.gerrit.common.Nullable; |
| import com.google.gerrit.common.PageLinks; |
| import com.google.gerrit.entities.Account; |
| import com.google.gerrit.extensions.registration.DynamicItem; |
| import com.google.gerrit.httpd.HtmlDomUtil; |
| import com.google.gerrit.httpd.LoginUrlToken; |
| import com.google.gerrit.httpd.WebSession; |
| import com.google.gerrit.httpd.template.SiteHeaderFooter; |
| import com.google.gerrit.server.account.AccountCache; |
| import com.google.gerrit.server.account.AccountException; |
| import com.google.gerrit.server.account.AccountManager; |
| import com.google.gerrit.server.account.AccountState; |
| import com.google.gerrit.server.account.Accounts; |
| import com.google.gerrit.server.account.AuthRequest; |
| import com.google.gerrit.server.account.AuthResult; |
| import com.google.gerrit.server.account.externalids.ExternalIdKeyFactory; |
| import com.google.gerrit.server.query.account.InternalAccountQuery; |
| import com.google.gerrit.util.http.CacheHeaders; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import com.google.inject.Singleton; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.Writer; |
| import java.util.List; |
| import java.util.Optional; |
| import java.util.UUID; |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import org.eclipse.jgit.errors.ConfigInvalidException; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| |
| @Singleton |
| class BecomeAnyAccountLoginServlet extends HttpServlet { |
| private static final long serialVersionUID = 1L; |
| |
| private final DynamicItem<WebSession> webSession; |
| private final Accounts accounts; |
| private final AccountCache accountCache; |
| private final AccountManager accountManager; |
| private final SiteHeaderFooter headers; |
| private final Provider<InternalAccountQuery> queryProvider; |
| private final ExternalIdKeyFactory externalIdKeyFactory; |
| private final AuthRequest.Factory authRequestFactory; |
| |
| @Inject |
| BecomeAnyAccountLoginServlet( |
| DynamicItem<WebSession> ws, |
| Accounts a, |
| AccountCache ac, |
| AccountManager am, |
| SiteHeaderFooter shf, |
| Provider<InternalAccountQuery> qp, |
| ExternalIdKeyFactory eikf, |
| AuthRequest.Factory arf) { |
| webSession = ws; |
| accounts = a; |
| accountCache = ac; |
| accountManager = am; |
| headers = shf; |
| queryProvider = qp; |
| externalIdKeyFactory = eikf; |
| authRequestFactory = arf; |
| } |
| |
| @Override |
| protected void doGet(HttpServletRequest req, HttpServletResponse rsp) |
| throws IOException, ServletException { |
| doPost(req, rsp); |
| } |
| |
| @Override |
| protected void doPost(HttpServletRequest req, HttpServletResponse rsp) throws IOException { |
| CacheHeaders.setNotCacheable(rsp); |
| |
| final AuthResult res; |
| if ("create_account".equals(req.getParameter("action"))) { |
| res = create(); |
| |
| } else if (req.getParameter("user_name") != null) { |
| res = byUserName(req.getParameter("user_name")); |
| |
| } else if (req.getParameter("preferred_email") != null) { |
| res = byPreferredEmail(req.getParameter("preferred_email")).orElse(null); |
| |
| } else if (req.getParameter("account_id") != null) { |
| res = byAccountId(req.getParameter("account_id")).orElse(null); |
| |
| } else { |
| byte[] raw; |
| raw = prepareHtmlOutput(); |
| rsp.setContentType("text/html"); |
| rsp.setCharacterEncoding(HtmlDomUtil.ENC.name()); |
| rsp.setContentLength(raw.length); |
| try (OutputStream out = rsp.getOutputStream()) { |
| out.write(raw); |
| } |
| return; |
| } |
| |
| if (res != null) { |
| webSession.get().login(res, false); |
| final StringBuilder rdr = new StringBuilder(); |
| rdr.append(req.getContextPath()); |
| rdr.append("/"); |
| |
| if (res.isNew()) { |
| rdr.append('#' + PageLinks.REGISTER); |
| } else { |
| rdr.append(LoginUrlToken.getToken(req)); |
| } |
| rsp.sendRedirect(rdr.toString()); |
| |
| } else { |
| rsp.setContentType("text/html"); |
| rsp.setCharacterEncoding(HtmlDomUtil.ENC.name()); |
| try (Writer out = rsp.getWriter()) { |
| out.write("<html>"); |
| out.write("<body>"); |
| out.write("<h1>Account Not Found</h1>"); |
| out.write("</body>"); |
| out.write("</html>"); |
| } |
| } |
| } |
| |
| private byte[] prepareHtmlOutput() throws IOException { |
| final String pageName = "BecomeAnyAccount.html"; |
| Document doc = headers.parse(getClass(), pageName); |
| if (doc == null) { |
| throw new FileNotFoundException("No " + pageName + " in webapp"); |
| } |
| |
| Element userlistElement = HtmlDomUtil.find(doc, "userlist"); |
| for (Account.Id accountId : accounts.firstNIds(100)) { |
| Optional<AccountState> accountState = accountCache.get(accountId); |
| if (!accountState.isPresent()) { |
| continue; |
| } |
| Account account = accountState.get().account(); |
| String displayName; |
| if (accountState.get().userName().isPresent()) { |
| displayName = accountState.get().userName().get(); |
| } else if (account.fullName() != null && !account.fullName().isEmpty()) { |
| displayName = account.fullName(); |
| } else if (account.preferredEmail() != null) { |
| displayName = account.preferredEmail(); |
| } else { |
| displayName = accountId.toString(); |
| } |
| |
| Element linkElement = doc.createElement("a"); |
| linkElement.setAttribute("href", "?account_id=" + account.id().toString()); |
| linkElement.setTextContent(displayName); |
| userlistElement.appendChild(linkElement); |
| userlistElement.appendChild(doc.createElement("br")); |
| } |
| |
| return HtmlDomUtil.toUTF8(doc); |
| } |
| |
| private Optional<AuthResult> auth(Optional<AccountState> account) { |
| return account.map(a -> new AuthResult(a.account().id(), null, false)); |
| } |
| |
| @Nullable |
| private AuthResult auth(Account.Id account) { |
| if (account != null) { |
| return new AuthResult(account, null, false); |
| } |
| return null; |
| } |
| |
| @Nullable |
| private AuthResult byUserName(String userName) { |
| List<AccountState> accountStates = queryProvider.get().byExternalId(SCHEME_USERNAME, userName); |
| if (accountStates.isEmpty()) { |
| getServletContext().log("No accounts with username " + userName + " found"); |
| return null; |
| } |
| if (accountStates.size() > 1) { |
| getServletContext().log("Multiple accounts with username " + userName + " found"); |
| return null; |
| } |
| return auth(accountStates.get(0).account().id()); |
| } |
| |
| private Optional<AuthResult> byPreferredEmail(String email) { |
| return auth(queryProvider.get().byPreferredEmail(email).stream().findFirst()); |
| } |
| |
| private Optional<AuthResult> byAccountId(String idStr) { |
| Optional<Account.Id> id = Account.Id.tryParse(idStr); |
| if (!id.isPresent()) { |
| return Optional.empty(); |
| } |
| |
| try { |
| return auth(accounts.get(id.get())); |
| } catch (IOException | ConfigInvalidException e) { |
| getServletContext().log("cannot query database", e); |
| return Optional.empty(); |
| } |
| } |
| |
| @Nullable |
| private AuthResult create() throws IOException { |
| try { |
| return accountManager.authenticate( |
| authRequestFactory.create( |
| externalIdKeyFactory.create(SCHEME_UUID, UUID.randomUUID().toString()))); |
| } catch (AccountException e) { |
| getServletContext().log("cannot create new account", e); |
| return null; |
| } |
| } |
| } |