feature(swagger and custom page) : Add swagger and custom 401 page

src/main/java/com/smartharvester/config/SmartHarvesterSecurityConfiguration.java

 package com.smartharvester.config;
 
-import com.smartharvester.security.handler.SmartHarvesterCustomAccessDeniedHandler;
 import com.smartharvester.security.jwt.AuthEntryPointJwt;
 import com.smartharvester.security.jwt.AuthTokenFilter;
 import com.smartharvester.security.services.UserServiceImpl;
@@ -13,6 +12,7 @@ import org.springframework.core.annotation.Order;
 import org.springframework.security.authentication.AuthenticationManager;
 import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.builders.WebSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
 import org.springframework.security.config.http.SessionCreationPolicy;
@@ -53,9 +53,10 @@ public class SmartHarvesterSecurityConfiguration extends WebSecurityConfigurerAd
         http.cors().and().csrf().disable()
                 .exceptionHandling().authenticationEntryPoint(unauthorizedHandler).and()
                 .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()
-                .authorizeRequests().antMatchers("/api/auth/**").permitAll()
-                .antMatchers("/harvest/**").authenticated();
-
+                .authorizeRequests().antMatchers("/harvester/auth/**").permitAll().and()
+                .authorizeRequests().antMatchers("/resources/**", "/public/error/css/**").permitAll()
+                .antMatchers("/harvester/api/**").authenticated()
+                .antMatchers("/public/error/css/**").permitAll();
 
         http.addFilterBefore(authenticationJwtTokenFilter(), UsernamePasswordAuthenticationFilter.class);
     }
@@ -65,8 +66,4 @@ public class SmartHarvesterSecurityConfiguration extends WebSecurityConfigurerAd
         return new BCryptPasswordEncoder();
     }
 
-    @Bean
-    public AccessDeniedHandler accessDeniedHandler(){
-        return new SmartHarvesterCustomAccessDeniedHandler();
-    }
 }

src/main/java/com/smartharvester/controller/SmartHarvesterAuthController.java

@@ -8,7 +8,12 @@ import com.smartharvester.model.login.response.MessageResponse;
 import com.smartharvester.model.user.SmartHarvesterUser;
 import com.smartharvester.security.jwt.JwtUtils;
 import com.smartharvester.security.services.UserService;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.authentication.AuthenticationManager;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
@@ -23,7 +28,7 @@ import java.util.UUID;
 import java.util.stream.Collectors;
 
 @CrossOrigin(origins = "*")
-@RequestMapping("/api/auth")
+@Api(value = "SmartHarvesterAuthController", description = "REST Apis related to User Entity!!!!")
 @RestController
 public class SmartHarvesterAuthController {
 
@@ -39,6 +44,7 @@ public class SmartHarvesterAuthController {
     @Autowired
     JwtUtils jwtUtils;
 
+    @ApiOperation(value = "Get list of Students in the System ", response = Iterable.class, tags = "getStudents")
     @PostMapping("/signin")
     public ResponseEntity<?> authenticateUser(@Valid @RequestBody LoginRequest loginRequest) {
 

src/main/java/com/smartharvester/controller/SmartHarvesterController.java

@@ -10,6 +10,7 @@ import com.smartharvester.dao.OpenApiDaoRepository;
 import com.smartharvester.exception.ResourceNotFoundException;
 import com.smartharvester.model.openapi.OpenApi;
 import com.smartharvester.service.OpenApiService;
+import io.swagger.annotations.Api;
 import io.swagger.v3.oas.models.Operation;
 import io.swagger.v3.parser.OpenAPIV3Parser;
 import io.swagger.v3.parser.core.models.SwaggerParseResult;
@@ -40,7 +41,8 @@ import static org.springframework.data.mongodb.core.query.Criteria.where;
 import static org.springframework.data.mongodb.core.query.Query.query;
 
 @CrossOrigin(origins = "*")
-@RequestMapping("/harvest")
+@Api(tags="OpenApi")
+@RequestMapping("/harvester/api")
 @RestController
 public class SmartHarvesterController {
 

src/main/java/com/smartharvester/controller/SmartHarvesterErrorController.java

@@ -9,9 +9,9 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import javax.servlet.RequestDispatcher;
 import javax.servlet.http.HttpServletRequest;
 
-@CrossOrigin(origins = "*")
-@Controller
-public class SmartHarvesterErrorController implements ErrorController {
+//@CrossOrigin(origins = "*")
+//@Controller
+public class SmartHarvesterErrorController {
 
     @RequestMapping("/error")
     public String handleError(HttpServletRequest request) {
@@ -23,16 +23,19 @@ public class SmartHarvesterErrorController implements ErrorController {
             Integer statusCode = Integer.valueOf(status.toString());
 
             if(statusCode == HttpStatus.NOT_FOUND.value()) {
-                return "error-404";
+                return "404";
             }
             else if(statusCode == HttpStatus.INTERNAL_SERVER_ERROR.value()) {
-                return "error-500";
+                return "500";
+            }
+            else if(statusCode == HttpStatus.UNAUTHORIZED.value()) {
+                return "401";
             }
         }
         return "error";
     }
 
-    @Override
+    //@Override
     public String getErrorPath() {
         return null;
     }

src/main/java/com/smartharvester/controller/SmartHarvesterUserController.java

@@ -20,7 +20,7 @@ import java.util.*;
 
 @CrossOrigin(origins = "*")
 @RestController
-@RequestMapping("/harvest/user")
+@RequestMapping("/harvester/api")
 
 public class SmartHarvesterUserController {
 
@@ -34,7 +34,7 @@ public class SmartHarvesterUserController {
      * Method to fetch all users.
      * @return
      */
-    @GetMapping("/all")
+    @GetMapping("/allusers")
     public String getAllUsers() {
         MongoDatabase db = mongoTemplate.getDb();
         MongoIterable<String> names = db.listCollectionNames();
@@ -73,22 +73,11 @@ public class SmartHarvesterUserController {
      * @return
      */
 
-    @GetMapping("/all2")
+    @GetMapping("/allusers2")
     public Collection<SmartHarvesterUser> getAll2() {
         //logger.debug("Getting all OpenApi from database...");
         List<SmartHarvesterUser> response = userDaoRepository.findAll();
         return response;
     }
 
-    //@GetMapping("/all2")
-    //List<SmartHarvesterUser> getAllUsers2() throws ResourceNotFoundException {
-           // Collection<SmartHarvesterUser> users = userDaoRepository.findAll();
-            //if (users.isEmpty()) {
-            //    throw new ResourceNotFoundException("No users found !");
-           // }
-            //return ResponseEntity.ok().body(users);
-        //return userDaoRepository.findAll();
-    //}
-
-
 }

src/main/java/com/smartharvester/security/handler/SmartHarvesterCustomAccessDeniedHandler.java

-package com.smartharvester.security.handler;
-
-import java.io.IOException;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import org.springframework.security.access.AccessDeniedException;
-import org.springframework.security.core.Authentication;
-import org.springframework.security.core.context.SecurityContextHolder;
-import org.springframework.security.web.access.AccessDeniedHandler;
-
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-public class SmartHarvesterCustomAccessDeniedHandler implements AccessDeniedHandler {
-
-    public static final Logger LOG = LoggerFactory.getLogger(SmartHarvesterCustomAccessDeniedHandler.class);
-
-    @Override
-    public void handle(
-            HttpServletRequest request,
-            HttpServletResponse response,
-            AccessDeniedException exc) throws IOException, ServletException {
-
-        Authentication auth = SecurityContextHolder.getContext().getAuthentication();
-        if (auth != null) {
-            LOG.warn("User: "
-                    + auth.getName()
-                    + " attempted to access the protected URL: "
-                    + request.getRequestURI());
-        }
-
-        response.sendRedirect(request.getContextPath() + "/denied.html");
-    }
-}

src/main/java/com/smartharvester/security/services/UserServiceImpl.java

@@ -17,8 +17,9 @@ public class UserServiceImpl implements UserDetailsService {
 
     @Override
     public UserDetails loadUserByUsername(String userName)  {
-        SmartHarvesterUser user = userRepository.findByEmail(userName).
-        orElseThrow(() -> new UsernameNotFoundException("User Not Found with username: " + userName));
+        SmartHarvesterUser user = userRepository
+                .findByEmail(userName)
+                .orElseThrow(() -> new UsernameNotFoundException("User Not Found with username: " + userName));
 
         return UserService.build(user);
     }

src/main/resources/application.properties

@@ -28,7 +28,11 @@ smartharvester.app.jwt.route.authentication.refresh=/refresh
 
 # 7. Swagger
 springdoc.api-docs.path=/smart-docs
+springdoc.swagger-ui.path=/smart-harvester/open-api.html
+springdoc.swagger-ui.operationsSorter=method
+
 
 # 8. Error Handling
-server.error.whitelabel.enabled=true
+server.error.whitelabel.enabled=false
 server.error.path=/error
+

src/main/resources/public/error/401.html

+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
+
+	<title>401 HTML Template by Colorlib</title>
+
+	<!-- Google font -->
+	<link href="https://fonts.googleapis.com/css?family=Cabin:400,700" rel="stylesheet">
+	<link href="https://fonts.googleapis.com/css?family=Montserrat:900" rel="stylesheet">
+
+	<!-- Custom stlylesheet -->
+	<!--<link type="text/css" rel="stylesheet" href="../static/css/style.css" />-->
+
+	<style>
+		* {
+  -webkit-box-sizing: border-box;
+          box-sizing: border-box;
+}
+
+body {
+  padding: 0;
+  margin: 0;
+}
+
+#notfound {
+  position: relative;
+  height: 100vh;
+}
+
+#notfound .notfound {
+  position: absolute;
+  left: 50%;
+  top: 50%;
+  -webkit-transform: translate(-50%, -50%);
+      -ms-transform: translate(-50%, -50%);
+          transform: translate(-50%, -50%);
+}
+
+.notfound {
+  max-width: 520px;
+  width: 100%;
+  line-height: 1.4;
+  text-align: center;
+}
+
+.notfound .notfound-404 {
+  position: relative;
+  height: 240px;
+}
+
+.notfound .notfound-404 h1 {
+  font-family: 'Montserrat', sans-serif;
+  position: absolute;
+  left: 50%;
+  top: 50%;
+  -webkit-transform: translate(-50%, -50%);
+      -ms-transform: translate(-50%, -50%);
+          transform: translate(-50%, -50%);
+  font-size: 252px;
+  font-weight: 900;
+  margin: 0px;
+  color: #262626;
+  text-transform: uppercase;
+  letter-spacing: -40px;
+  margin-left: -20px;
+}
+
+.notfound .notfound-404 h1>span {
+  text-shadow: -8px 0px 0px #fff;
+}
+
+.notfound .notfound-404 h3 {
+  font-family: 'Cabin', sans-serif;
+  position: relative;
+  font-size: 16px;
+  font-weight: 700;
+  text-transform: uppercase;
+  color: #262626;
+  margin: 0px;
+  letter-spacing: 3px;
+  padding-left: 6px;
+}
+
+.notfound h2 {
+  font-family: 'Cabin', sans-serif;
+  font-size: 20px;
+  font-weight: 400;
+  text-transform: uppercase;
+  color: #000;
+  margin-top: 0px;
+  margin-bottom: 25px;
+}
+
+@media only screen and (max-width: 767px) {
+  .notfound .notfound-404 {
+    height: 200px;
+  }
+  .notfound .notfound-404 h1 {
+    font-size: 200px;
+  }
+}
+
+@media only screen and (max-width: 480px) {
+  .notfound .notfound-404 {
+    height: 162px;
+  }
+  .notfound .notfound-404 h1 {
+    font-size: 162px;
+    height: 150px;
+    line-height: 162px;
+  }
+  .notfound h2 {
+    font-size: 16px;
+  }
+}
+
+	</style>
+
+	<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
+	<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
+	<!--[if lt IE 9]>
+		  <script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
+		  <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
+		<![endif]-->
+
+</head>
+
+<body>
+
+	<div id="notfound">
+		<div class="notfound">
+			<div class="notfound-404">
+				<h3>You Shall not Pass !</h3>
+				<h1><span>4</span><span>0</span><span>1</span></h1>
+			</div>
+			<h2>We are sorry, but you are not authorized to acesss this resource</h2>
+		</div>
+	</div>
+
+</body><!-- This templates was made by Colorlib (https://colorlib.com) -->
+
+</html>

src/main/resources/templates/errors/error.html → src/main/resources/public/error/404.html

@@ -14,7 +14,7 @@
 	<link href="https://fonts.googleapis.com/css?family=Montserrat:900" rel="stylesheet">
 
 	<!-- Custom stlylesheet -->
-	<link type="text/css" rel="stylesheet" href="css/style.css" />
+	<link type="text/css" rel="stylesheet"/>
 
 	<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
 	<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->