Merge branch 'main' into task/CAS-68/AdjustStartMoney

backend/src/main/java/de/szut/casino/CasinoApplication.java

@@ -8,6 +8,10 @@ import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.Bean;
+import org.springframework.mail.MailException;
+import org.springframework.mail.MailSender;
+import org.springframework.mail.SimpleMailMessage;
+import org.springframework.mail.javamail.JavaMailSenderImpl;
 import org.springframework.web.client.RestTemplate;
 
 import java.math.BigDecimal;
@@ -26,6 +30,11 @@ public class CasinoApplication {
         return new RestTemplate();
     }
 
+    @Bean
+    public static JavaMailSenderImpl javaMailSenderImpl() {
+        return new JavaMailSenderImpl();
+    }
+
     @Bean
     public CommandLineRunner initData(LootBoxRepository lootBoxRepository, RewardRepository rewardRepository) {
         return _ -> {

backend/src/main/java/de/szut/casino/security/AuthController.java

@@ -5,6 +5,7 @@ import de.szut.casino.security.dto.LoginRequestDto;
 import de.szut.casino.security.service.AuthService;
 import de.szut.casino.user.dto.CreateUserDto;
 import de.szut.casino.user.dto.GetUserDto;
+import jakarta.mail.MessagingException;
 import jakarta.validation.Valid;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
@@ -13,6 +14,8 @@ import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+import java.io.IOException;
+
 @RestController
 @RequestMapping("/auth")
 public class AuthController {
@@ -27,7 +30,7 @@ public class AuthController {
     }
 
     @PostMapping("/register")
-    public ResponseEntity<GetUserDto> registerUser(@Valid @RequestBody CreateUserDto signUpRequest) {
+    public ResponseEntity<GetUserDto> registerUser(@Valid @RequestBody CreateUserDto signUpRequest) throws MessagingException, IOException {
         GetUserDto response = authService.register(signUpRequest);
         return ResponseEntity.ok(response);
     }

backend/src/main/java/de/szut/casino/security/service/AuthService.java

@@ -7,6 +7,7 @@ import de.szut.casino.user.UserEntity;
 import de.szut.casino.user.UserService;
 import de.szut.casino.user.dto.CreateUserDto;
 import de.szut.casino.user.dto.GetUserDto;
+import jakarta.mail.MessagingException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.authentication.AuthenticationManager;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
@@ -14,6 +15,8 @@ import org.springframework.security.core.Authentication;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.stereotype.Service;
 
+import java.io.IOException;
+
 @Service
 public class AuthService {
 
@@ -26,6 +29,9 @@ public class AuthService {
     @Autowired
     private UserService userService;
 
+    @Autowired
+    private EmailService emailService;
+
     public AuthResponseDto login(LoginRequestDto loginRequest) {
         Authentication authentication = authenticationManager.authenticate(
                 new UsernamePasswordAuthenticationToken(
@@ -38,8 +44,11 @@ public class AuthService {
         return new AuthResponseDto(jwt);
     }
 
-    public GetUserDto register(CreateUserDto signUpRequest) {
+    public GetUserDto register(CreateUserDto signUpRequest) throws MessagingException, IOException {
         UserEntity user = userService.createUser(signUpRequest);
+
+        this.emailService.sendRegistrationEmail(user);
+
         return new GetUserDto(
                 user.getId(),
                 user.getEmail(),

backend/src/main/java/de/szut/casino/security/service/EmailService.java

@@ -0,0 +1,59 @@
+package de.szut.casino.security.service;
+
+import de.szut.casino.user.UserEntity;
+import jakarta.mail.MessagingException;
+import jakarta.mail.internet.MimeMessage;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.mail.javamail.JavaMailSenderImpl;
+import org.springframework.mail.javamail.MimeMessageHelper;
+import org.springframework.stereotype.Service;
+import org.springframework.util.FileCopyUtils;
+
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.nio.charset.StandardCharsets;
+
+@Service
+public class EmailService {
+    private JavaMailSenderImpl mailSender;
+    private MailConfig mailConfig;
+    @Value("${app.frontend-host}")
+    private String feUrl;
+
+    public EmailService(JavaMailSenderImpl mailSender, MailConfig mailConfig) {
+        this.mailSender = mailSender;
+        this.mailConfig = mailConfig;
+        this.mailSender.setHost(mailConfig.host);
+        this.mailSender.setPort(mailConfig.port);
+        if (mailConfig.authenticationEnabled) {
+            this.mailSender.setUsername(mailConfig.username);
+            this.mailSender.setPassword(mailConfig.password);
+        }
+    }
+
+    public void sendRegistrationEmail(UserEntity user) throws IOException, MessagingException {
+        String template = loadTemplate("email/welcome.html");
+        String htmlContent = template
+                .replace("${username}", user.getUsername())
+                .replace("${feUrl}", feUrl);
+
+        MimeMessage message = mailSender.createMimeMessage();
+        MimeMessageHelper helper = new MimeMessageHelper(message, true, "UTF-8");
+
+        helper.setFrom(mailConfig.fromAddress);
+        helper.setTo(user.getEmail());
+        helper.setSubject("Willkommen bei Trustworthy Casino©");
+        helper.setText(htmlContent, true);
+
+        mailSender.send(message);
+    }
+
+    private String loadTemplate(String templatePath) throws IOException {
+        ClassPathResource resource = new ClassPathResource("templates/" + templatePath);
+        try (Reader reader = new InputStreamReader(resource.getInputStream(), StandardCharsets.UTF_8)) {
+            return FileCopyUtils.copyToString(reader);
+        }
+    }
+}

backend/src/main/java/de/szut/casino/security/service/MailConfig.java

@@ -0,0 +1,25 @@
+package de.szut.casino.security.service;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+@Service
+public class MailConfig {
+    @Value("${app.mail.host}")
+    public String host;
+
+    @Value("${app.mail.port}")
+    public Integer port;
+
+    @Value("${app.mail.authentication}")
+    public Boolean authenticationEnabled;
+
+    @Value("${app.mail.username}")
+    public String username;
+
+    @Value("${app.mail.password}")
+    public String password;
+
+    @Value("${app.mail.from-address}")
+    public String fromAddress;
+}