content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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.alibaba.csp.sentinel.dashboard.controller;
  
  import com.alibaba.csp.sentinel.dashboard.auth.AuthService;
  import com.alibaba.csp.sentinel.dashboard.auth.SimpleWebAuthServiceImpl;
  import com.alibaba.csp.sentinel.dashboard.config.DashboardConfig;
  import com.alibaba.csp.sentinel.dashboard.domain.Result;
  import org.apache.commons.lang.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.beans.factory.annotation.Value;
  import org.springframework.web.bind.annotation.PostMapping;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RestController;
  
  import javax.servlet.http.HttpServletRequest;
  
  /**
   * @author cdfive
   * @since 1.6.0
   */
  @RestController
  @RequestMapping("/auth")
  public class AuthController {
  
      private static final Logger LOGGER = LoggerFactory.getLogger(AuthController.class);
  
      @Value("${auth.username:sentinel}")
      private String authUsername;
  
      @Value("${auth.password:sentinel}")
      private String authPassword;
  
      @Autowired
      private AuthService<HttpServletRequest> authService;
  
      @PostMapping("/login")
      public Result<AuthService.AuthUser> login(HttpServletRequest request, String username, String password) {
          if (StringUtils.isNotBlank(DashboardConfig.getAuthUsername())) {
              authUsername = DashboardConfig.getAuthUsername();
          }
  
          if (StringUtils.isNotBlank(DashboardConfig.getAuthPassword())) {
              authPassword = DashboardConfig.getAuthPassword();
          }
  
          /*
           * If auth.username or auth.password is blank(set in application.properties or VM arguments),
           * auth will pass, as the front side validate the input which can't be blank,
           * so user can input any username or password(both are not blank) to login in that case.
           */
          if (StringUtils.isNotBlank(authUsername) && !authUsername.equals(username)
                  || StringUtils.isNotBlank(authPassword) && !authPassword.equals(password)) {
              LOGGER.error("Login failed: Invalid username or password, username=" + username);
              return Result.ofFail(-1, "Invalid username or password");
          }
  
          AuthService.AuthUser authUser = new SimpleWebAuthServiceImpl.SimpleWebAuthUserImpl(username);
          request.getSession().setAttribute(SimpleWebAuthServiceImpl.WEB_SESSION_KEY, authUser);
          return Result.ofSuccess(authUser);
      }
  
      @PostMapping(value = "/logout")
      public Result<?> logout(HttpServletRequest request) {
          request.getSession().invalidate();
          return Result.ofSuccess(null);
      }
  
      @PostMapping(value = "/check")
      public Result<?> check(HttpServletRequest request) {
          AuthService.AuthUser authUser = authService.getAuthUser(request);
          if (authUser == null) {
              return Result.ofFail(-1, "Not logged in");
          }
          return Result.ofSuccess(authUser);
      }
  }
  