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// 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.server.config;
import com.google.gerrit.client.reviewdb.AccountExternalId;
import com.google.gerrit.client.reviewdb.AccountGroup;
import com.google.gerrit.client.reviewdb.AuthType;
import com.google.gerrit.client.reviewdb.SystemConfig;
import com.google.gwtjsonrpc.server.SignedToken;
import com.google.gwtjsonrpc.server.XsrfException;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import org.eclipse.jgit.lib.Config;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
/** Authentication related settings from {@code gerrit.config}. */
@Singleton
public class AuthConfig {
private final AuthType authType;
private final String httpHeader;
private final String logoutUrl;
private final String[] trusted;
private final SignedToken emailReg;
private final AccountGroup.Id administratorGroup;
private final Set<AccountGroup.Id> anonymousGroups;
private final Set<AccountGroup.Id> registeredGroups;
private final boolean allowGoogleAccountUpgrade;
@Inject
AuthConfig(@GerritServerConfig final Config cfg, final SystemConfig s)
throws XsrfException {
authType = toType(cfg);
httpHeader = cfg.getString("auth", null, "httpheader");
logoutUrl = cfg.getString("auth", null, "logouturl");
trusted = toTrusted(cfg);
emailReg = new SignedToken(5 * 24 * 60 * 60, s.registerEmailPrivateKey);
final HashSet<AccountGroup.Id> r = new HashSet<AccountGroup.Id>(2);
r.add(s.anonymousGroupId);
r.add(s.registeredGroupId);
registeredGroups = Collections.unmodifiableSet(r);
anonymousGroups = Collections.singleton(s.anonymousGroupId);
administratorGroup = s.adminGroupId;
if (authType == AuthType.OPENID) {
allowGoogleAccountUpgrade =
cfg.getBoolean("auth", "allowgoogleaccountupgrade", false);
} else {
allowGoogleAccountUpgrade = false;
}
}
private String[] toTrusted(final Config cfg) {
final String[] r = cfg.getStringList("auth", null, "trustedopenid");
if (r.length == 0) {
return new String[] {"http://", "https://"};
}
return r;
}
private static AuthType toType(final Config cfg) {
if (isBecomeAnyoneEnabled()) {
return AuthType.DEVELOPMENT_BECOME_ANY_ACCOUNT;
}
return ConfigUtil.getEnum(cfg, "auth", null, "type", AuthType.OPENID);
}
private static boolean isBecomeAnyoneEnabled() {
try {
String s = "com.google.gerrit.server.http.BecomeAnyAccountLoginServlet";
return Boolean.getBoolean(s);
} catch (SecurityException se) {
return false;
}
}
/** Type of user authentication used by this Gerrit server. */
public AuthType getAuthType() {
return authType;
}
public String getLoginHttpHeader() {
return httpHeader;
}
public String getLogoutURL() {
return logoutUrl;
}
public SignedToken getEmailRegistrationToken() {
return emailReg;
}
public boolean isAllowGoogleAccountUpgrade() {
return allowGoogleAccountUpgrade;
}
/** Identity of the magic group with full powers. */
public AccountGroup.Id getAdministratorsGroup() {
return administratorGroup;
}
/** Groups that all users, including anonymous users, belong to. */
public Set<AccountGroup.Id> getAnonymousGroups() {
return anonymousGroups;
}
/** Groups that all users who have created an account belong to. */
public Set<AccountGroup.Id> getRegisteredGroups() {
return registeredGroups;
}
public boolean isIdentityTrustable(final Collection<AccountExternalId> ids) {
switch (getAuthType()) {
case DEVELOPMENT_BECOME_ANY_ACCOUNT:
case HTTP:
case HTTP_LDAP:
case LDAP:
// Its safe to assume yes for an HTTP authentication type, as the
// only way in is through some external system that the admin trusts
//
return true;
case OPENID:
// All identities must be trusted in order to trust the account.
//
for (final AccountExternalId e : ids) {
if (!isTrusted(e)) {
return false;
}
}
return true;
default:
// Assume not, we don't understand the login format.
//
return false;
}
}
private boolean isTrusted(final AccountExternalId id) {
if (id.isScheme(AccountExternalId.LEGACY_GAE)) {
// Assume this is a trusted token, its a legacy import from
// a fairly well respected provider and only takes effect if
// the administrator has the import still enabled
//
return isAllowGoogleAccountUpgrade();
}
if (id.isScheme(AccountExternalId.SCHEME_MAILTO)) {
// mailto identities are created by sending a unique validation
// token to the address and asking them to come back to the site
// with that token.
//
return true;
}
for (final String p : trusted) {
if (matches(p, id)) {
return true;
}
}
return false;
}
private boolean matches(final String p, final AccountExternalId id) {
if (p.startsWith("^") && p.endsWith("$")) {
return id.getExternalId().matches(p);
} else {
return id.getExternalId().startsWith(p);
}
}
}
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