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// Copyright 2008 Google Inc.
//
// 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.server;
import com.google.gerrit.client.Gerrit;
import com.google.gerrit.client.reviewdb.Account;
import com.google.gerrit.client.reviewdb.AccountExternalId;
import com.google.gerrit.client.reviewdb.ReviewDb;
import com.google.gerrit.client.rpc.Common;
import com.google.gerrit.client.rpc.Common.CurrentAccountImpl;
import com.google.gwtjsonrpc.server.ActiveCall;
import com.google.gwtjsonrpc.server.ValidToken;
import com.google.gwtorm.client.OrmException;
import com.google.gwtorm.client.Transaction;
import org.spearce.jgit.util.Base64;
import java.text.MessageFormat;
import java.util.Collections;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class GerritCall extends ActiveCall {
static {
Common.setCurrentAccountImpl(new CurrentAccountImpl() {
public Account.Id getAccountId() {
final GerritCall c = GerritJsonServlet.getCurrentCall();
return c != null ? c.getAccountId() : null;
}
});
}
private final GerritServer server;
private boolean accountRead;
private Account.Id accountId;
public GerritCall(final GerritServer gs, final HttpServletRequest i,
final HttpServletResponse o) {
super(i, o);
server = gs;
}
@Override
public void onFailure(final Throwable error) {
if (error instanceof OrmException) {
onInternalFailure(error);
} else {
super.onFailure(error);
}
}
@Override
public String getUser() {
initAccount();
return accountId != null ? accountId.toString() : null;
}
public Account.Id getAccountId() {
initAccount();
return accountId;
}
private void initAccount() {
if (accountRead) {
return;
}
accountRead = true;
ValidToken accountInfo;
accountInfo = getCookie(Gerrit.ACCOUNT_COOKIE, server.getAccountToken());
if (accountInfo == null) {
switch (Common.getGerritConfig().getLoginType()) {
case HTTP:
if (assumeHttp()) {
return;
}
break;
}
if (getCookie(Gerrit.ACCOUNT_COOKIE) != null) {
// The cookie is bogus, but it was sent. Send an expired cookie
// back to clear it out of the browser's cookie store.
//
removeCookie(Gerrit.ACCOUNT_COOKIE);
}
return;
}
try {
accountId = Account.Id.parse(accountInfo.getData());
} catch (RuntimeException e) {
// Whoa, did we change our cookie format or something? This should
// never happen on a valid acocunt token, but discard it anyway.
//
removeCookie(Gerrit.ACCOUNT_COOKIE);
accountInfo = null;
accountId = null;
return;
}
if (accountInfo.needsRefresh()) {
// The cookie is valid, but its getting stale. Update it with a
// newer date so it doesn't expire on an active user.
//
final String idstr = accountId.toString();
setCookie(Gerrit.ACCOUNT_COOKIE, idstr, server.getAccountToken());
}
}
private boolean assumeHttp() {
final String hdr = server.getLoginHttpHeader();
String user;
if (hdr != null && !"".equals(hdr)
&& !"Authorization".equalsIgnoreCase(hdr)) {
user = getHttpServletRequest().getHeader(hdr);
} else {
user = getHttpServletRequest().getRemoteUser();
if (user == null) {
// If the container didn't do the authentication we might
// have done it in the front-end web server. Try to split
// the identity out of the Authorization header and honor it.
//
user = getHttpServletRequest().getHeader("Authorization");
if (user != null && user.startsWith("Basic ")) {
user = new String(Base64.decode(user.substring("Basic ".length())));
if (user.indexOf(':') >= 0) {
user = user.substring(0, user.indexOf(':'));
}
} else if (user != null && user.startsWith("Digest ")
&& user.contains("username=\"")) {
user = user.substring(user.indexOf("username=\"") + 10);
user = user.substring(0, user.indexOf('"'));
} else {
user = null;
}
}
}
if (user == null) {
return false;
}
try {
final ReviewDb db = Common.getSchemaFactory().open();
try {
final String eid = "gerrit:" + user;
final List<AccountExternalId> matches =
db.accountExternalIds().byExternal(eid).toList();
if (matches.size() == 1) {
// Account exists, connect to it again.
//
final AccountExternalId e = matches.get(0);
e.setLastUsedOn();
db.accountExternalIds().update(Collections.singleton(e));
accountId = e.getAccountId();
setCookie(Gerrit.ACCOUNT_COOKIE, accountId.toString(), server
.getAccountToken());
return true;
}
if (matches.size() == 0) {
// No account, automatically initialize a new one.
//
final Transaction txn = db.beginTransaction();
final Account.Id nid = new Account.Id(db.nextAccountId());
final Account a = new Account(nid);
a.setFullName(user);
final String efmt = server.getEmailFormat();
if (efmt != null && efmt.contains("{0}")) {
a.setPreferredEmail(MessageFormat.format(efmt, user));
}
final AccountExternalId e =
new AccountExternalId(new AccountExternalId.Key(nid, eid));
e.setEmailAddress(a.getPreferredEmail());
e.setLastUsedOn();
db.accounts().insert(Collections.singleton(a), txn);
db.accountExternalIds().insert(Collections.singleton(e), txn);
txn.commit();
accountId = nid;
setCookie(Gerrit.ACCOUNT_COOKIE, accountId.toString(), server
.getAccountToken());
return true;
}
} finally {
db.close();
}
} catch (OrmException e) {
}
return false;
}
}
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