content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.github.jobson.commands.users;
  
  import com.github.jobson.api.v1.UserId;
  import com.github.jobson.auth.basic.BasicAuthenticator;
  import com.github.jobson.commands.DefaultedConfiguredCommand;
  import com.github.jobson.config.ApplicationConfig;
  import com.github.jobson.dao.users.FilesystemUserDAO;
  import io.dropwizard.setup.Bootstrap;
  import net.sourceforge.argparse4j.inf.Namespace;
  import net.sourceforge.argparse4j.inf.Subparser;
  
  import java.io.File;
  
  import static com.github.jobson.Constants.BASIC_AUTH_NAME;
  import static com.github.jobson.Helpers.generateRandomBase36String;
  import static java.lang.String.format;
  
  public final class UseraddCommand extends DefaultedConfiguredCommand<ApplicationConfig> {
  
      private static String LOGIN_ARG = "LOGIN";
      private static String PASSWORD_ARG = "-p";
  
      public UseraddCommand() {
          super("add", "create a new user with a random password. Assumes basic auth.");
      }
  
      @Override
      public void configure(Subparser subparser) {
          super.configure(subparser);
  
          subparser.addArgument(LOGIN_ARG)
                  .metavar(LOGIN_ARG)
                  .type(String.class)
                  .help("new user's login");
  
          subparser.addArgument(PASSWORD_ARG, "--password")
                  .dest(PASSWORD_ARG)
                  .type(String.class)
                  .help("the user's password");
      }
  
      @Override
      protected void run(Bootstrap<ApplicationConfig> bootstrap, Namespace namespace, ApplicationConfig applicationConfig) throws Exception {
          final UserId login = new UserId(namespace.get(LOGIN_ARG));
          final File userFile = new File(applicationConfig.getUsersConfiguration().getFile());
          final FilesystemUserDAO dao = new FilesystemUserDAO(userFile);
  
          final boolean userExists = dao.getUserCredentialsById(login).isPresent();
  
          if (!userExists) {
              addNewUser(namespace, dao, login);
          } else {
              System.err.println(format("user '%s' already exists, you can set this user's password with `passwd`.", login));
              System.exit(1);
          }
      }
  
      private void addNewUser(Namespace namespace, FilesystemUserDAO dao, UserId login) {
          final String password = namespace.getString(PASSWORD_ARG) == null ?
                  generateRandomBase36String(30) :
                  namespace.getString(PASSWORD_ARG);
  
          final boolean userAdded =
                  dao.addNewUser(login, BASIC_AUTH_NAME, BasicAuthenticator.createAuthField(password));
  
          if (userAdded) {
              System.exit(0);
          } else {
              System.err.println("encountered an error adding a new user (this shouldn't happen)");
              System.exit(1);
          }
      }
  }
  