Feat: Sending an authentication email to user

.github/workflows/deploy.yml

@@ -25,7 +25,6 @@ jobs:
       - name: Set up Environment
         working-directory: ./src/main
         run: |
-          mkdir ./resources
           cd ./resources
           touch ./application.yml
           echo "${{ secrets.APPLICATION_YML }}" | base64 --decode >> application.yml

build.gradle

@@ -45,6 +45,12 @@ dependencies {
 	implementation 'io.jsonwebtoken:jjwt-impl:0.11.5'
 	implementation 'io.jsonwebtoken:jjwt-jackson:0.11.5'
 	implementation 'com.auth0:java-jwt:4.4.0'
+
+	// SMTP 설정
+	implementation 'org.springframework.boot:spring-boot-starter-mail'
+
+	// Thymeleaf 설정
+	implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
 }
 
 tasks.named('test') {

src/main/java/com/fullcar/core/response/ErrorCode.java

@@ -13,6 +13,7 @@ public enum ErrorCode {
 
     /* 400 BAD REQUEST */
     FAILED_TO_GENERATE_PUBLIC_KEY(BAD_REQUEST, "애플 공개키 생성 중 문제 발생"),
+    EMAIL_ADDRESS_IN_BLACKLIST(BAD_REQUEST, "블랙리스트에 있는 이메일 주소입니다."),
 
     /* 401 UNAUTHORIZED */
     UNAUTHORIZED_KAKAO_TOKEN(UNAUTHORIZED, "유효하지 않은 카카오 토큰"),

src/main/java/com/fullcar/core/response/SuccessCode.java

@@ -14,7 +14,8 @@ public enum SuccessCode {
     /* 200 OK */
     SIGNIN_SUCCESS(OK, "소셜로그인 성공"),
     GET_NEW_TOKEN_SUCCESS(OK, "토큰 재발급 성공"),
-    READ_SUCCESS(OK, "조회 성공");
+    READ_SUCCESS(OK, "조회 성공"),
+    EMAIL_SENT_SUCCESS(OK, "인증메일 발송 성공");
 
     private final HttpStatus status;
     private final String message;

src/main/java/com/fullcar/member/application/member/MemberMapper.java

@@ -1,6 +1,8 @@
 package com.fullcar.member.application.member;
 
+import com.fullcar.member.domain.member.EmailMessage;
 import com.fullcar.member.domain.member.Member;
+import com.fullcar.member.presentation.member.dto.request.EmailRequestDto;
 import com.fullcar.member.presentation.member.dto.response.MemberGetResponseDto;
 import lombok.AccessLevel;
 import lombok.RequiredArgsConstructor;
@@ -16,4 +18,11 @@ public MemberGetResponseDto toDto(Member member) {
                 .companyName(member.getCompany().getCompanyName())
                 .build();
     }
+
+    public EmailMessage toEntity(EmailRequestDto emailRequestDto) {
+        return EmailMessage.builder()
+                .to(emailRequestDto.getEmail())
+                .subject("[FullCar] 회사 이메일 인증")
+                .build();
+    }
 }

src/main/java/com/fullcar/member/application/member/MemberService.java

@@ -2,21 +2,33 @@
 
 import com.fullcar.core.exception.NotFoundException;
 import com.fullcar.core.response.ErrorCode;
+import com.fullcar.member.domain.blacklist.BlacklistRepository;
 import com.fullcar.member.domain.member.*;
 import com.fullcar.member.presentation.member.dto.request.CompanyRequestDto;
+import com.fullcar.member.presentation.member.dto.request.EmailRequestDto;
 import com.fullcar.member.presentation.member.dto.response.MemberGetResponseDto;
+import jakarta.mail.MessagingException;
+import jakarta.mail.internet.MimeMessage;
 import lombok.RequiredArgsConstructor;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.mail.javamail.JavaMailSender;
+import org.springframework.mail.javamail.MimeMessageHelper;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.validation.annotation.Validated;
+import org.thymeleaf.spring6.SpringTemplateEngine;
+import org.thymeleaf.context.Context;
 
 @Validated
 @Service
 @RequiredArgsConstructor
 public class MemberService {
     private final MemberRepository memberRepository;
+    private final BlacklistRepository blacklistRepository;
     private final CompanyMapper companyMapper;
     private final MemberMapper memberMapper;
+    private final JavaMailSender javaMailSender;
+    private final SpringTemplateEngine templateEngine;
 
     /**
      * 회원을 식별자로 조회합니다.
@@ -40,4 +52,29 @@ public void registerCompany(Member member, CompanyRequestDto companyRequestDto)
     public MemberGetResponseDto getMember(Member member) {
         return memberMapper.toDto(member);
     }
+
+    public void sendMail(EmailRequestDto emailRequestDto) {
+        String email = emailRequestDto.getEmail();
+        String emailDomain = email.substring(email.lastIndexOf("@")+1);
+        blacklistRepository.findByEmailThrow(emailDomain);
+
+        EmailMessage emailMessage = memberMapper.toEntity(emailRequestDto);
+        MimeMessage mimeMessage = javaMailSender.createMimeMessage();
+
+        try {
+            MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true, "UTF-8");
+            mimeMessageHelper.setTo(emailMessage.getTo());
+            mimeMessageHelper.setSubject(emailMessage.getSubject());
+            mimeMessageHelper.setText(setContext(),true);
+            mimeMessageHelper.addInline("image", new ClassPathResource("static/images/fullcar_logo.png"));
+            javaMailSender.send(mimeMessage);
+        } catch (MessagingException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public String setContext() {
+        Context context = new Context();
+        return templateEngine.process("email", context);
+    }
 }

src/main/java/com/fullcar/member/domain/blacklist/Blacklist.java

@@ -0,0 +1,25 @@
+package com.fullcar.member.domain.blacklist;
+
+import jakarta.persistence.EmbeddedId;
+import jakarta.persistence.Entity;
+import jakarta.persistence.EntityListeners;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+import static lombok.AccessLevel.PROTECTED;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = PROTECTED)
+@AllArgsConstructor(access = PROTECTED)
+@EntityListeners(AuditingEntityListener.class)
+@Builder
+public class Blacklist {
+    @EmbeddedId
+    private BlacklistId id;
+
+    private String email;
+}

src/main/java/com/fullcar/member/domain/blacklist/BlacklistId.java

@@ -0,0 +1,21 @@
+package com.fullcar.member.domain.blacklist;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Embeddable;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+
+import static lombok.AccessLevel.PROTECTED;
+
+@Embeddable
+@Getter
+@NoArgsConstructor(access = PROTECTED)
+@AllArgsConstructor
+public class BlacklistId implements Serializable {
+
+    @Column(name = "id")
+    private Long id;
+}

src/main/java/com/fullcar/member/domain/blacklist/BlacklistRepository.java

@@ -0,0 +1,17 @@
+package com.fullcar.member.domain.blacklist;
+
+import com.fullcar.core.exception.CustomException;
+import com.fullcar.core.response.ErrorCode;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface BlacklistRepository extends JpaRepository<Blacklist, BlacklistId> {
+    boolean existsByEmail(String email);
+
+    default void findByEmailThrow(String email) {
+        if (existsByEmail(email)) {
+            throw new CustomException(ErrorCode.EMAIL_ADDRESS_IN_BLACKLIST);
+        }
+    }
+}

src/main/java/com/fullcar/member/domain/blacklist/service/BlacklistIdService.java

@@ -0,0 +1,18 @@
+package com.fullcar.member.domain.blacklist.service;
+
+import com.fullcar.core.id.SnowFlake;
+import com.fullcar.member.domain.blacklist.BlacklistId;
+import org.springframework.stereotype.Service;
+
+@Service
+public class BlacklistIdService {
+    private final SnowFlake snowFlake;
+
+    public BlacklistIdService() {
+        snowFlake = new SnowFlake(255);
+    }
+
+    public BlacklistId nextId() {
+        return new BlacklistId(snowFlake.nextId());
+    }
+}

src/main/java/com/fullcar/member/domain/member/EmailMessage.java

@@ -0,0 +1,12 @@
+package com.fullcar.member.domain.member;
+
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@Builder
+public class EmailMessage {
+    private String to;
+    private String subject;
+    private String message;
+}

src/main/java/com/fullcar/member/presentation/member/MemberController.java

@@ -6,6 +6,7 @@
 import com.fullcar.member.application.member.MemberService;
 import com.fullcar.member.domain.member.Member;
 import com.fullcar.member.presentation.member.dto.request.CompanyRequestDto;
+import com.fullcar.member.presentation.member.dto.request.EmailRequestDto;
 import com.fullcar.member.presentation.member.dto.response.MemberGetResponseDto;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.media.Content;
@@ -44,4 +45,15 @@ public ApiResponse<MemberGetResponseDto> getMember(@CurrentMember Member member)
         MemberGetResponseDto response = memberService.getMember(member);
         return ApiResponse.success(SuccessCode.READ_SUCCESS, response);
     }
+
+    @Operation(summary = "회사 메일 인증 API")
+    @ApiResponses({
+            @io.swagger.v3.oas.annotations.responses.ApiResponse(responseCode = "200", description = "인증메일 발송 성공"),
+            @io.swagger.v3.oas.annotations.responses.ApiResponse(responseCode = "500", description = "서버 내부 오류", content = @Content)
+    })
+    @PostMapping("/onboarding/company/email")
+    public ApiResponse<Object> sendAuthenticationMail(@RequestBody EmailRequestDto emailRequestDto) {
+        memberService.sendMail(emailRequestDto);
+        return ApiResponse.success(SuccessCode.EMAIL_SENT_SUCCESS);
+    }
 }

src/main/java/com/fullcar/member/presentation/member/dto/request/EmailRequestDto.java

@@ -0,0 +1,15 @@
+package com.fullcar.member.presentation.member.dto.request;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PROTECTED)
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class EmailRequestDto {
+    @Schema(description = "회사 이메일", example = "[email protected]")
+    private String email;
+}

src/main/resources/templates/email.html

@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org" lang="UTF-8">
+
+<head>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+</head>
+
+<body style="font-family: 'Noto Sans', 'Arial', 'sans-serif'; margin: 0; padding: 0;">
+<div class="container" style="margin: auto;">
+    <div class="logo">
+        <img src="cid:image" alt="Fullcar 로고">
+    </div>
+    <p style="margin-top: 20px; padding: 0;">안녕하세요.</p><br>
+    <p style="margin-top: 10px;">회사 메일 인증을 통한 안전한 <span class="highlight" style="color: #6C7AF1; font-weight: bold;">카풀 서비스 풀카</span>입니다.</p>
+    <p style="margin-top: 10px; margin-bottom: 10px;">풀카 이용을 위해 <span class="highlight" style="color: #6C7AF1; font-weight: bold;">아래 버튼을 클릭</span>해 인증을 진행해 주세요.</p>
+
+    <script th:inline="javascript">
+        $("#bt").click(function() {
+            alert('성공');
+        });
+
+    </script>
+
+    <button type="button" id="bt" onclick="alert('성공')" style="display: inline-block; text-decoration: none; font-weight: 500;
+    color: #fff;
+    background-color: #6C7AF1;
+    padding: 15px 36px;
+    border-color: #6C7AF1;
+    border-radius: 8px;
+    font-size: 14px;
+    margin-top: 20px;
+    transition: background-color 0.3s;">회사 메일 인증하기</button>
+    <div class="help-text">
+        <a href="#" style="display: block; color: #505967; margin-top: 20px; text-decoration: underline;">인증이 잘 되지 않나요?</a>
+    </div>
+</div>
+</body>
+
+</html>
+