content: package act.controller.builtin;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2017 ActFramework
   * %%
   * 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.
   * #L%
   */
  
  import act.app.ActionContext;
  import act.cli.CliContext;
  import act.cli.CliDispatcher;
  import act.cli.CliOverHttpAuthority;
  import act.cli.CliOverHttpContext;
  import act.conf.AppConfig;
  import act.controller.Controller;
  import act.controller.annotation.Port;
  import act.controller.annotation.UrlContext;
  import act.handler.CliHandler;
  import org.osgl.http.H;
  import org.osgl.mvc.annotation.Before;
  import org.osgl.mvc.annotation.GetAction;
  import org.osgl.mvc.annotation.PostAction;
  import org.osgl.mvc.result.Result;
  
  import javax.inject.Inject;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  
  import static act.controller.Controller.Util.*;
  
  /**
   * Handles CLI over http requests
   */
  @Deprecated
  @UrlContext("cli")
  @Port(AppConfig.PORT_CLI_OVER_HTTP)
  public class CliOverHttp {
  
      private static final int MRU_LIMIT = 8;
  
      @Inject
      CliDispatcher dispatcher;
  
      @Inject
      H.Session session;
  
      @Inject
      AppConfig config;
  
      @Before
      public void before(AppConfig config) {
          CliOverHttpAuthority authority = config.cliOverHttpAuthority();
          authority.authorize();
      }
  
      @GetAction
      public Result home(AppConfig config) {
          String title = config.cliOverHttpTitle();
          boolean showSysCmd = config.cliOverHttpSysCmdEnabled();
          return render(dispatcher, mru(), title, showSysCmd);
      }
  
      @GetAction("cmd")
      public Result cmdPanel(String cmd) {
          CliHandler handler = handler(cmd);
          return render(handler, dispatcher, cmd);
      }
  
      @PostAction("cmd")
      public Result run(String cmd, ActionContext context) throws IOException {
          CliHandler handler = handler(cmd);
          ByteArrayOutputStream os = new ByteArrayOutputStream();
          CliContext cliContext = new CliOverHttpContext(context, os);
          handler.handle(cliContext);
          cliContext.flush();
          String txt = new String(os.toByteArray(), "UTF-8");
          txt = txt.replace("^J", "\n");
          return text(txt);
      }
  
      private List<String> mru() {
          List<String> mru = session.cached("cli_over_http_mru");
          if (null == mru) {
              mru = new ArrayList<>();
          }
          session.cache("cli_over_http_mru", mru, config.sessionTtl());
          return mru;
      }
  
      private void addToMru(String cmd) {
          List<String> mru = mru();
          mru.remove(cmd);
          mru.add(0, cmd);
          if (mru.size() > MRU_LIMIT) {
              mru.remove(mru.size() - 1);
          }
      }
  
      private CliHandler handler(String cmd) {
          CliHandler handler = dispatcher.handler(cmd);
          notFoundIfNull(handler);
          return handler;
      }
  
  
  }
  