| // Copyright (C) 2013 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.account; |
| |
| import static com.google.gerrit.reviewdb.client.AccountExternalId.SCHEME_USERNAME; |
| |
| import com.google.common.base.Strings; |
| import com.google.gerrit.extensions.restapi.AuthException; |
| import com.google.gerrit.extensions.restapi.ResourceConflictException; |
| import com.google.gerrit.extensions.restapi.ResourceNotFoundException; |
| import com.google.gerrit.extensions.restapi.Response; |
| import com.google.gerrit.extensions.restapi.RestModifyView; |
| import com.google.gerrit.reviewdb.client.AccountExternalId; |
| import com.google.gerrit.reviewdb.server.ReviewDb; |
| import com.google.gerrit.server.CurrentUser; |
| import com.google.gerrit.server.IdentifiedUser; |
| import com.google.gerrit.server.account.PutHttpPassword.Input; |
| import com.google.gwtorm.server.OrmException; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import com.google.inject.Singleton; |
| |
| import org.apache.commons.codec.binary.Base64; |
| |
| import java.security.NoSuchAlgorithmException; |
| import java.security.SecureRandom; |
| import java.util.Collections; |
| |
| @Singleton |
| public class PutHttpPassword implements RestModifyView<AccountResource, Input> { |
| public static class Input { |
| public String httpPassword; |
| public boolean generate; |
| } |
| |
| private static final int LEN = 31; |
| private static final SecureRandom rng; |
| |
| static { |
| try { |
| rng = SecureRandom.getInstance("SHA1PRNG"); |
| } catch (NoSuchAlgorithmException e) { |
| throw new RuntimeException("Cannot create RNG for password generator", e); |
| } |
| } |
| |
| private final Provider<CurrentUser> self; |
| private final Provider<ReviewDb> dbProvider; |
| private final AccountCache accountCache; |
| |
| @Inject |
| PutHttpPassword(Provider<CurrentUser> self, Provider<ReviewDb> dbProvider, |
| AccountCache accountCache) { |
| this.self = self; |
| this.dbProvider = dbProvider; |
| this.accountCache = accountCache; |
| } |
| |
| @Override |
| public Response<String> apply(AccountResource rsrc, Input input) throws AuthException, |
| ResourceNotFoundException, ResourceConflictException, OrmException { |
| if (input == null) { |
| input = new Input(); |
| } |
| input.httpPassword = Strings.emptyToNull(input.httpPassword); |
| |
| String newPassword; |
| if (input.generate) { |
| if (self.get() != rsrc.getUser() |
| && !self.get().getCapabilities().canGenerateHttpPassword()) { |
| throw new AuthException("not allowed to generate HTTP password"); |
| } |
| newPassword = generate(); |
| |
| } else if (input.httpPassword == null) { |
| if (self.get() != rsrc.getUser() |
| && !self.get().getCapabilities().canAdministrateServer()) { |
| throw new AuthException("not allowed to clear HTTP password"); |
| } |
| newPassword = null; |
| } else { |
| if (!self.get().getCapabilities().canAdministrateServer()) { |
| throw new AuthException("not allowed to set HTTP password directly, " |
| + "need to be Gerrit administrator"); |
| } |
| newPassword = input.httpPassword; |
| } |
| return apply(rsrc.getUser(), newPassword); |
| } |
| |
| public Response<String> apply(IdentifiedUser user, String newPassword) |
| throws ResourceNotFoundException, ResourceConflictException, OrmException { |
| if (user.getUserName() == null) { |
| throw new ResourceConflictException("username must be set"); |
| } |
| |
| AccountExternalId id = dbProvider.get().accountExternalIds() |
| .get(new AccountExternalId.Key( |
| SCHEME_USERNAME, user.getUserName())); |
| if (id == null) { |
| throw new ResourceNotFoundException(); |
| } |
| id.setPassword(newPassword); |
| dbProvider.get().accountExternalIds().update(Collections.singleton(id)); |
| accountCache.evict(user.getAccountId()); |
| |
| return Strings.isNullOrEmpty(newPassword) |
| ? Response.<String>none() |
| : Response.ok(newPassword); |
| } |
| |
| private static String generate() { |
| byte[] rand = new byte[LEN]; |
| rng.nextBytes(rand); |
| |
| byte[] enc = Base64.encodeBase64(rand, false); |
| StringBuilder r = new StringBuilder(enc.length); |
| for (int i = 0; i < enc.length; i++) { |
| if (enc[i] == '=') { |
| break; |
| } |
| r.append((char) enc[i]); |
| } |
| return r.toString(); |
| } |
| } |