| // Copyright (C) 2015 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.googlesource.gerrit.plugins.serviceuser; |
| |
| 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.server.CurrentUser; |
| import com.google.gerrit.server.config.ConfigResource; |
| import com.google.gwtorm.server.OrmException; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import com.google.inject.Singleton; |
| |
| import com.googlesource.gerrit.plugins.serviceuser.PutHttpPassword.Input; |
| |
| import org.apache.commons.codec.binary.Base64; |
| |
| import java.security.NoSuchAlgorithmException; |
| import java.security.SecureRandom; |
| |
| @Singleton |
| public class PutHttpPassword implements RestModifyView<ServiceUserResource, 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<GetConfig> getConfig; |
| private final com.google.gerrit.server.account.PutHttpPassword putHttpPassword; |
| private final Provider<CurrentUser> self; |
| |
| @Inject |
| PutHttpPassword(Provider<GetConfig> getConfig, |
| com.google.gerrit.server.account.PutHttpPassword putHttpPassword, |
| Provider<CurrentUser> self) { |
| this.getConfig = getConfig; |
| this.putHttpPassword = putHttpPassword; |
| this.self = self; |
| } |
| |
| @Override |
| public Response<String> apply(ServiceUserResource rsrc, Input input) |
| throws AuthException, ResourceConflictException, |
| ResourceNotFoundException, OrmException { |
| if (input == null) { |
| input = new Input(); |
| } |
| input.httpPassword = Strings.emptyToNull(input.httpPassword); |
| |
| Boolean httpPasswordAllowed = getConfig.get().apply(new ConfigResource()).allowHttpPassword; |
| if (input.generate || input.httpPassword == null) { |
| if ((httpPasswordAllowed == null || !httpPasswordAllowed) |
| && !self.get().getCapabilities().canAdministrateServer()) { |
| throw new ResourceConflictException("not allowed to generate HTTP password"); |
| } |
| } else { |
| if (!self.get().getCapabilities().canAdministrateServer()) { |
| throw new AuthException("not allowed to set HTTP password directly, " |
| + "requires the Administrate Server permission"); |
| } |
| } |
| |
| String newPassword = input.generate ? generate() : input.httpPassword; |
| return putHttpPassword.apply(rsrc.getUser(), 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(); |
| } |
| } |