From 6cb103bc3cce90bc3ccc98106f45b141769ce6c6 Mon Sep 17 00:00:00 2001
From: Somnath  More <somnath.more@zemosolabs.com>
Date: Sun, 4 Feb 2024 14:25:08 +0530
Subject: [PATCH] Please add Encryption

---
 backend/.idea/compiler.xml                    |   1 +
 .../reactpairdemo/demo/DemoApplication.java   |   2 +
 .../demo/controller/UserController.java       |  44 ++++++++++
 .../com/reactpairdemo/demo/dto/UserDto.java   |  27 ++++++
 .../com/reactpairdemo/demo/entity/User.java   |  19 +++++
 .../demo/exception/ErrorResponse.java         |  12 +++
 .../exception/GlobalExceptionHandler.java     |  53 ++++++++++++
 .../demo/exception/UserException.java         |   7 ++
 .../demo/repository/UserRepository.java       |  10 +++
 .../demo/service/UserService.java             |  15 ++++
 .../demo/service/impl/UserServiceImpl.java    |  78 ++++++++++++++++++
 .../reactpairdemo/demo/utils/Constants.java   |   8 ++
 .../com/reactpairdemo/demo/utils/Mapper.java  |  19 +++++
 .../src/main/resources/application.properties |   3 +-
 backend/target/classes/application.properties |   3 +-
 .../reactpairdemo/demo/DemoApplication.class  | Bin 745 -> 955 bytes
 .../demo/controller/UserController.class      | Bin 0 -> 3451 bytes
 .../com/reactpairdemo/demo/dto/UserDto.class  | Bin 0 -> 3806 bytes
 .../com/reactpairdemo/demo/entity/User.class  | Bin 0 -> 3389 bytes
 .../ErrorResponse$ErrorResponseBuilder.class  | Bin 0 -> 1635 bytes
 .../demo/exception/ErrorResponse.class        | Bin 0 -> 2579 bytes
 .../exception/GlobalExceptionHandler.class    | Bin 0 -> 5503 bytes
 .../demo/exception/UserException.class        | Bin 0 -> 434 bytes
 .../demo/repository/UserRepository.class      | Bin 0 -> 546 bytes
 .../demo/service/UserService.class            | Bin 0 -> 696 bytes
 .../demo/service/impl/UserServiceImpl.class   | Bin 0 -> 4684 bytes
 .../reactpairdemo/demo/utils/Constants.class  | Bin 0 -> 576 bytes
 .../com/reactpairdemo/demo/utils/Mapper.class | Bin 0 -> 1176 bytes
 28 files changed, 299 insertions(+), 2 deletions(-)
 create mode 100644 backend/src/main/java/com/reactpairdemo/demo/controller/UserController.java
 create mode 100644 backend/src/main/java/com/reactpairdemo/demo/dto/UserDto.java
 create mode 100644 backend/src/main/java/com/reactpairdemo/demo/entity/User.java
 create mode 100644 backend/src/main/java/com/reactpairdemo/demo/exception/ErrorResponse.java
 create mode 100644 backend/src/main/java/com/reactpairdemo/demo/exception/GlobalExceptionHandler.java
 create mode 100644 backend/src/main/java/com/reactpairdemo/demo/exception/UserException.java
 create mode 100644 backend/src/main/java/com/reactpairdemo/demo/repository/UserRepository.java
 create mode 100644 backend/src/main/java/com/reactpairdemo/demo/service/UserService.java
 create mode 100644 backend/src/main/java/com/reactpairdemo/demo/service/impl/UserServiceImpl.java
 create mode 100644 backend/src/main/java/com/reactpairdemo/demo/utils/Constants.java
 create mode 100644 backend/src/main/java/com/reactpairdemo/demo/utils/Mapper.java
 create mode 100644 backend/target/classes/com/reactpairdemo/demo/controller/UserController.class
 create mode 100644 backend/target/classes/com/reactpairdemo/demo/dto/UserDto.class
 create mode 100644 backend/target/classes/com/reactpairdemo/demo/entity/User.class
 create mode 100644 backend/target/classes/com/reactpairdemo/demo/exception/ErrorResponse$ErrorResponseBuilder.class
 create mode 100644 backend/target/classes/com/reactpairdemo/demo/exception/ErrorResponse.class
 create mode 100644 backend/target/classes/com/reactpairdemo/demo/exception/GlobalExceptionHandler.class
 create mode 100644 backend/target/classes/com/reactpairdemo/demo/exception/UserException.class
 create mode 100644 backend/target/classes/com/reactpairdemo/demo/repository/UserRepository.class
 create mode 100644 backend/target/classes/com/reactpairdemo/demo/service/UserService.class
 create mode 100644 backend/target/classes/com/reactpairdemo/demo/service/impl/UserServiceImpl.class
 create mode 100644 backend/target/classes/com/reactpairdemo/demo/utils/Constants.class
 create mode 100644 backend/target/classes/com/reactpairdemo/demo/utils/Mapper.class

diff --git a/backend/.idea/compiler.xml b/backend/.idea/compiler.xml
index 07e72e7..bfc71e1 100644
--- a/backend/.idea/compiler.xml
+++ b/backend/.idea/compiler.xml
@@ -2,6 +2,7 @@
 <project version="4">
   <component name="CompilerConfiguration">
     <annotationProcessing>
+      <profile default="true" name="Default" enabled="true" />
       <profile name="Maven default annotation processors profile" enabled="true">
         <sourceOutputDir name="target/generated-sources/annotations" />
         <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
diff --git a/backend/src/main/java/com/reactpairdemo/demo/DemoApplication.java b/backend/src/main/java/com/reactpairdemo/demo/DemoApplication.java
index 0108661..b6ead96 100644
--- a/backend/src/main/java/com/reactpairdemo/demo/DemoApplication.java
+++ b/backend/src/main/java/com/reactpairdemo/demo/DemoApplication.java
@@ -1,7 +1,9 @@
 package com.reactpairdemo.demo;
 
+import org.modelmapper.ModelMapper;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
 
 @SpringBootApplication
 public class DemoApplication {
diff --git a/backend/src/main/java/com/reactpairdemo/demo/controller/UserController.java b/backend/src/main/java/com/reactpairdemo/demo/controller/UserController.java
new file mode 100644
index 0000000..7bce010
--- /dev/null
+++ b/backend/src/main/java/com/reactpairdemo/demo/controller/UserController.java
@@ -0,0 +1,44 @@
+package com.reactpairdemo.demo.controller;
+
+import com.reactpairdemo.demo.dto.UserDto;
+import com.reactpairdemo.demo.entity.User;
+import com.reactpairdemo.demo.service.UserService;
+import jakarta.validation.Valid;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+@RestController
+@RequestMapping("/api/v1/user")
+public class UserController {
+    @Autowired
+    private UserService userService;
+    @GetMapping()
+    public ResponseEntity<List<UserDto>>  getAllUsers() {
+
+        return  new ResponseEntity<>(userService.getAllUsers(), HttpStatus.OK);
+    }
+   @PostMapping
+    public ResponseEntity<UserDto> createUser(@Valid @RequestBody UserDto user) {
+        return new ResponseEntity<>(userService.createUser(user), HttpStatus.CREATED);
+    }
+
+   @GetMapping("/{id}")
+    public ResponseEntity<UserDto> getUserById(@PathVariable Long id) {
+       return new ResponseEntity<>(userService.getUserById(id), HttpStatus.OK);
+    }
+
+   @PutMapping("/{id}")
+    public ResponseEntity<UserDto> updateUser(@PathVariable Long id,@Valid @RequestBody UserDto userDto) {
+       return new ResponseEntity<>(userService.updateUser(id,userDto), HttpStatus.OK);
+    }
+
+   @DeleteMapping("/{id}")
+    public ResponseEntity<String> deleteUser(@PathVariable Long id) {
+       return new ResponseEntity<>(userService.deleteUser(id), HttpStatus.OK);
+    }
+}
diff --git a/backend/src/main/java/com/reactpairdemo/demo/dto/UserDto.java b/backend/src/main/java/com/reactpairdemo/demo/dto/UserDto.java
new file mode 100644
index 0000000..217e0e8
--- /dev/null
+++ b/backend/src/main/java/com/reactpairdemo/demo/dto/UserDto.java
@@ -0,0 +1,27 @@
+package com.reactpairdemo.demo.dto;
+
+import jakarta.persistence.Column;
+import jakarta.validation.constraints.Email;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Pattern;
+import jakarta.validation.constraints.Size;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+public class UserDto {
+    private Long id;
+    @NotNull(message = "Name must not be Null")
+    @Size(min=4,message = "Enter valid Name")
+    private String name;
+    @NotNull(message = "Email must not be Null")
+    @Email(message = "Invalid Email Format")
+    private String email;
+    @NotNull(message = "Password must not be Null")
+    @Pattern(
+            regexp = "^(?=.*[a-z])(?=.*[A-Z])(?=.*\\d).{8,}$",
+            message = "Password must be at least 8 characters long and include at least one uppercase letter, one lowercase letter, and one digit."
+    )
+    private String Password;
+}
diff --git a/backend/src/main/java/com/reactpairdemo/demo/entity/User.java b/backend/src/main/java/com/reactpairdemo/demo/entity/User.java
new file mode 100644
index 0000000..dafea41
--- /dev/null
+++ b/backend/src/main/java/com/reactpairdemo/demo/entity/User.java
@@ -0,0 +1,19 @@
+package com.reactpairdemo.demo.entity;
+
+import jakarta.persistence.*;
+import lombok.Data;
+
+@Entity
+@Data
+public class User {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    @Column(nullable = false)
+    private String name;
+    @Column(nullable = false)
+    private String email;
+    @Column(nullable = false)
+    private String Password;
+
+}
diff --git a/backend/src/main/java/com/reactpairdemo/demo/exception/ErrorResponse.java b/backend/src/main/java/com/reactpairdemo/demo/exception/ErrorResponse.java
new file mode 100644
index 0000000..b19d46e
--- /dev/null
+++ b/backend/src/main/java/com/reactpairdemo/demo/exception/ErrorResponse.java
@@ -0,0 +1,12 @@
+package com.reactpairdemo.demo.exception;
+
+import lombok.Builder;
+import lombok.Data;
+
+@Data
+@Builder
+public class ErrorResponse {
+    public String message;
+    public String title;
+
+}
diff --git a/backend/src/main/java/com/reactpairdemo/demo/exception/GlobalExceptionHandler.java b/backend/src/main/java/com/reactpairdemo/demo/exception/GlobalExceptionHandler.java
new file mode 100644
index 0000000..2daf45e
--- /dev/null
+++ b/backend/src/main/java/com/reactpairdemo/demo/exception/GlobalExceptionHandler.java
@@ -0,0 +1,53 @@
+package com.reactpairdemo.demo.exception;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.FieldError;
+import org.springframework.validation.ObjectError;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+import org.springframework.web.servlet.resource.NoResourceFoundException;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+    @ExceptionHandler({UserException.class})
+    @ResponseBody
+    public ResponseEntity<ErrorResponse> handleException(Exception e) {
+        ErrorResponse errorResponse = ErrorResponse.builder().message(e.getMessage()).title(HttpStatus.NOT_FOUND.getReasonPhrase()).build();
+        return ResponseEntity.status(HttpStatus.NOT_FOUND).body(errorResponse);
+    }
+
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    @ResponseBody
+    public ResponseEntity<Map<String, String>> handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
+        Map<String, String> resp = new HashMap<>();
+          e.getBindingResult().getAllErrors().forEach((objectError) ->{
+              String fieldName = ((FieldError) objectError).getField();
+               String message=objectError.getDefaultMessage();
+
+             resp.put(fieldName,message);
+          } );
+
+        return new ResponseEntity<>(resp, HttpStatus.BAD_REQUEST);
+    }
+
+    @ExceptionHandler(NoResourceFoundException.class)
+    @ResponseBody
+    public ResponseEntity<ErrorResponse> handleNoResourceFoundException(NoResourceFoundException ex) {
+
+        return new ResponseEntity<>(new ErrorResponse(ex.getMessage(), HttpStatus.NOT_FOUND.toString()), HttpStatus.NOT_FOUND);
+    }
+
+    @ExceptionHandler(IllegalAccessException.class)
+    @ResponseBody
+    public ResponseEntity<ErrorResponse> handleIllegalAccessException(IllegalAccessException ex) {
+
+        return new ResponseEntity<>(new ErrorResponse(ex.getMessage(), HttpStatus.BAD_REQUEST.toString()), HttpStatus.NOT_FOUND);
+    }
+
+}
diff --git a/backend/src/main/java/com/reactpairdemo/demo/exception/UserException.java b/backend/src/main/java/com/reactpairdemo/demo/exception/UserException.java
new file mode 100644
index 0000000..e5e5044
--- /dev/null
+++ b/backend/src/main/java/com/reactpairdemo/demo/exception/UserException.java
@@ -0,0 +1,7 @@
+package com.reactpairdemo.demo.exception;
+
+public class UserException extends RuntimeException{
+    public UserException(String message) {
+        super(message);
+    }
+}
diff --git a/backend/src/main/java/com/reactpairdemo/demo/repository/UserRepository.java b/backend/src/main/java/com/reactpairdemo/demo/repository/UserRepository.java
new file mode 100644
index 0000000..535f4e2
--- /dev/null
+++ b/backend/src/main/java/com/reactpairdemo/demo/repository/UserRepository.java
@@ -0,0 +1,10 @@
+package com.reactpairdemo.demo.repository;
+
+import com.reactpairdemo.demo.entity.User;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface UserRepository extends JpaRepository<User,Long> {
+    Optional<User> findByEmail(String email);
+}
diff --git a/backend/src/main/java/com/reactpairdemo/demo/service/UserService.java b/backend/src/main/java/com/reactpairdemo/demo/service/UserService.java
new file mode 100644
index 0000000..0f50a2b
--- /dev/null
+++ b/backend/src/main/java/com/reactpairdemo/demo/service/UserService.java
@@ -0,0 +1,15 @@
+package com.reactpairdemo.demo.service;
+
+import com.reactpairdemo.demo.dto.UserDto;
+
+import java.util.List;
+
+public interface UserService {
+    public UserDto createUser(UserDto user);
+    public UserDto getUserById(Long id);
+    public UserDto updateUser(Long id,UserDto userDto);
+
+    public String deleteUser(Long id);
+    
+    public List<UserDto> getAllUsers();
+}
diff --git a/backend/src/main/java/com/reactpairdemo/demo/service/impl/UserServiceImpl.java b/backend/src/main/java/com/reactpairdemo/demo/service/impl/UserServiceImpl.java
new file mode 100644
index 0000000..aa5f551
--- /dev/null
+++ b/backend/src/main/java/com/reactpairdemo/demo/service/impl/UserServiceImpl.java
@@ -0,0 +1,78 @@
+package com.reactpairdemo.demo.service.impl;
+
+import com.reactpairdemo.demo.dto.UserDto;
+import com.reactpairdemo.demo.entity.User;
+import com.reactpairdemo.demo.exception.UserException;
+import com.reactpairdemo.demo.repository.UserRepository;
+import com.reactpairdemo.demo.service.UserService;
+import com.reactpairdemo.demo.utils.Mapper;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Collectors;
+
+import static com.reactpairdemo.demo.utils.Constants.DELETE_SUCCESS;
+import static com.reactpairdemo.demo.utils.Constants.ID_NOT_FOUND;
+
+@Service
+@Slf4j
+public class UserServiceImpl implements UserService {
+
+    private final UserRepository userRepository;
+
+   private final Mapper mapper;
+    @Autowired
+    public UserServiceImpl(UserRepository userRepository, Mapper mapper) {
+        this.userRepository = userRepository;
+        this.mapper = mapper;
+    }
+
+    @Override
+    public UserDto createUser(UserDto user) {
+        User userResponse=this.mapper.dtoToEntity(user);
+        User user1=userRepository.save(userResponse);
+        return mapper.entityToDto(user1);
+    }
+
+    @Override
+    public UserDto getUserById(Long id) {
+        Optional<User> userOptional=userRepository.findById(id);
+        if(userOptional.isEmpty()){
+            throw  new UserException(ID_NOT_FOUND);
+        }
+
+        return  mapper.entityToDto(userOptional.get());
+    }
+
+    @Override
+    public UserDto updateUser(Long id, UserDto userDto) {
+        Optional<User> userOptional=userRepository.findById(id);
+        if(userOptional.isEmpty()){
+            throw  new UserException(ID_NOT_FOUND);
+        }
+         userOptional.get().setEmail(userDto.getEmail());
+        userOptional.get().setName(userDto.getName());
+        userOptional.get().setPassword(userDto.getPassword());
+        User userResponse=userRepository.save(userOptional.get());
+        return  mapper.entityToDto(userResponse);
+    }
+
+    @Override
+    public String deleteUser(Long id) {
+        Optional<User> userOptional=userRepository.findById(id);
+        if(userOptional.isEmpty()){
+            throw  new UserException(ID_NOT_FOUND);
+        }
+        userRepository.deleteById(id);
+        return  DELETE_SUCCESS;
+    }
+
+    @Override
+    public List<UserDto> getAllUsers() {
+        List<User> userList=userRepository.findAll();
+        return userList.stream().map(mapper::entityToDto).collect(Collectors.toList());
+    }
+}
diff --git a/backend/src/main/java/com/reactpairdemo/demo/utils/Constants.java b/backend/src/main/java/com/reactpairdemo/demo/utils/Constants.java
new file mode 100644
index 0000000..f63f316
--- /dev/null
+++ b/backend/src/main/java/com/reactpairdemo/demo/utils/Constants.java
@@ -0,0 +1,8 @@
+package com.reactpairdemo.demo.utils;
+
+public class Constants {
+   public static String DELETE_SUCCESS ="User Deleted Succesfully";
+    public static String ID_NOT_FOUND = "Given Id Not Found !!";
+    public static String BASE_URL ="/api/v1/user";
+
+}
diff --git a/backend/src/main/java/com/reactpairdemo/demo/utils/Mapper.java b/backend/src/main/java/com/reactpairdemo/demo/utils/Mapper.java
new file mode 100644
index 0000000..b3c53ba
--- /dev/null
+++ b/backend/src/main/java/com/reactpairdemo/demo/utils/Mapper.java
@@ -0,0 +1,19 @@
+package com.reactpairdemo.demo.utils;
+
+import com.reactpairdemo.demo.dto.UserDto;
+import com.reactpairdemo.demo.entity.User;
+import org.modelmapper.ModelMapper;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class Mapper {
+    @Autowired
+    private ModelMapper modelMapper;
+    public UserDto entityToDto(User user){
+        return modelMapper.map(user, UserDto.class);
+    }
+    public User dtoToEntity(UserDto user){
+        return modelMapper.map(user, User.class);
+    }
+}
diff --git a/backend/src/main/resources/application.properties b/backend/src/main/resources/application.properties
index 89eef6b..8dd396d 100644
--- a/backend/src/main/resources/application.properties
+++ b/backend/src/main/resources/application.properties
@@ -3,4 +3,5 @@ spring.datasource.url=jdbc:mysql://localhost:3306/pairdemo?useSSL=false&ServerTi
 spring.datasource.username=root
 spring.datasource.password=root
 spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect
-spring.jpa.hibernate.ddl-auto=update
\ No newline at end of file
+spring.jpa.hibernate.ddl-auto=update
+# make demo user email ,password and name with validations and secure password followed naming convention
\ No newline at end of file
diff --git a/backend/target/classes/application.properties b/backend/target/classes/application.properties
index 89eef6b..8dd396d 100644
--- a/backend/target/classes/application.properties
+++ b/backend/target/classes/application.properties
@@ -3,4 +3,5 @@ spring.datasource.url=jdbc:mysql://localhost:3306/pairdemo?useSSL=false&ServerTi
 spring.datasource.username=root
 spring.datasource.password=root
 spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect
-spring.jpa.hibernate.ddl-auto=update
\ No newline at end of file
+spring.jpa.hibernate.ddl-auto=update
+# make demo user email ,password and name with validations and secure password followed naming convention
\ No newline at end of file
diff --git a/backend/target/classes/com/reactpairdemo/demo/DemoApplication.class b/backend/target/classes/com/reactpairdemo/demo/DemoApplication.class
index 5662ef54f3b7e5d2df63f6832edc4998dbd1e8ad..3d71273b6f3644bae2e481853c3fdc732f205a40 100644
GIT binary patch
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delta 199
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diff --git a/backend/target/classes/com/reactpairdemo/demo/controller/UserController.class b/backend/target/classes/com/reactpairdemo/demo/controller/UserController.class
new file mode 100644
index 0000000000000000000000000000000000000000..54fe34f2aef5e6757ea6b03cb0b11bcd3ec14a67
GIT binary patch
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diff --git a/backend/target/classes/com/reactpairdemo/demo/dto/UserDto.class b/backend/target/classes/com/reactpairdemo/demo/dto/UserDto.class
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diff --git a/backend/target/classes/com/reactpairdemo/demo/entity/User.class b/backend/target/classes/com/reactpairdemo/demo/entity/User.class
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diff --git a/backend/target/classes/com/reactpairdemo/demo/exception/ErrorResponse$ErrorResponseBuilder.class b/backend/target/classes/com/reactpairdemo/demo/exception/ErrorResponse$ErrorResponseBuilder.class
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diff --git a/backend/target/classes/com/reactpairdemo/demo/exception/GlobalExceptionHandler.class b/backend/target/classes/com/reactpairdemo/demo/exception/GlobalExceptionHandler.class
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diff --git a/backend/target/classes/com/reactpairdemo/demo/exception/UserException.class b/backend/target/classes/com/reactpairdemo/demo/exception/UserException.class
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